/* =========================================================================
   ALTITUDE v7.3 — "The whole department."
   Styles for altitude-landing.php · scoped under .altitude-page, plus a
   small block that hides the host theme's chrome on this template.

   Mobile first: base rules are the phone, every media query is min-width
   unless a max-width is doing genuine phone-only work.

   The page is complete and readable with zero JavaScript: nothing here
   hides real content. Hidden/offset animation states are set at runtime.
   ========================================================================= */

/* -------------------------------------------------------------------------
   HOST THEME CHROME — hidden on this template only.
   ---------------------------------------------------------------------- */
body.page-template-altitude-landing [class*="header_"],
body.page-template-altitude-landing [class*="footer_"],
body.page-template-altitude-landing [class*="burger"],
body.page-template-altitude-landing .site-header,
body.page-template-altitude-landing .site-footer,
body.page-template-altitude-landing #masthead,
body.page-template-altitude-landing #colophon,
body.page-template-altitude-landing > header,
body.page-template-altitude-landing > footer {
  display: none !important;
}

body.page-template-altitude-landing { background: #061223; }

/* =========================================================================
   TOKENS
   ========================================================================= */
.altitude-page {
  --a-navy:      #0A1D3B;
  --a-navy-deep: #061223;
  --a-gold:      #C2A063;
  --a-gold-hi:   #E8C489;
  --a-gold-deep: #8C6E2E;
  --a-lav:       #A9A0D8;
  --a-paper:     #F5F2EB;
  --a-white:     #FFFFFF;

  --a-bg:        var(--a-paper);
  --a-ink:       var(--a-navy);
  --a-ink-dim:   rgba(10, 29, 59, 0.68);
  --a-ink-faint: rgba(10, 29, 59, 0.42);
  --a-line:      rgba(10, 29, 59, 0.14);
  --a-data:      #6E5FA8;

  --a-display: "Bodoni Moda", "Didot", Georgia, serif;
  --a-body:    "Archivo", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --a-mono:    "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --a-s--1: 0.72rem;
  --a-s-0:  1rem;
  --a-s-1:  clamp(1.06rem, 1rem + 0.35vw, 1.35rem);
  --a-s-2:  clamp(1.35rem, 1.15rem + 1vw, 2.1rem);
  --a-s-3:  clamp(1.8rem, 1.35rem + 2.2vw, 3.2rem);
  --a-s-4:  clamp(2.1rem, 1.5rem + 2.8vw, 3.9rem);

  --a-header: 64px;
  --a-gutter: clamp(1.15rem, 5vw, 4.5rem);
  --a-maxw:   1440px;
  --a-ease:   cubic-bezier(0.22, 1, 0.36, 1);

  background: var(--a-bg);
  color: var(--a-ink);
  font-family: var(--a-body);
  font-size: var(--a-s-0);
  font-weight: 300;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
@media (min-width: 900px) { .altitude-page { --a-header: 76px; } }

.altitude-page *,
.altitude-page *::before,
.altitude-page *::after { box-sizing: border-box; }
.altitude-page :where(h1, h2, h3, h4, p, figure, blockquote, dl, dd) { margin: 0; }
.altitude-page :where(ul, ol) { margin: 0; padding: 0; list-style: none; }
.altitude-page :where(img, svg, canvas) { display: block; max-width: 100%; }
.altitude-page :where(a) { color: inherit; text-decoration: none; }
.altitude-page :where(button) { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
.altitude-page ::selection { background: var(--a-gold); color: var(--a-white); }
.altitude-page :focus-visible {
  outline: 2px solid var(--a-data);
  outline-offset: 3px;
  border-radius: 2px;
}

/* =========================================================================
   HEADER
   ========================================================================= */
.alt-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 80;
  height: var(--a-header);
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 3vw, 2.5rem);
  padding-inline: var(--a-gutter);
  color: #F2F0EC;
  transition: background 0.45s var(--a-ease), backdrop-filter 0.45s var(--a-ease);
}
.alt-header.is-solid {
  background: rgba(6, 18, 35, 0.78);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(169, 160, 216, 0.14);
}

.alt-header__brand { display: inline-flex; align-items: center; flex: none; }
.alt-logo { width: auto; object-fit: contain; }
.alt-header__logo { height: clamp(44px, 7vw, 78px); transition: opacity 0.35s var(--a-ease); }
.alt-header__brand:hover .alt-header__logo { opacity: 0.78; }
.alt-logo--plate { background: var(--a-paper); border-radius: 4px; padding: 0.3rem 0.55rem; }

.alt-header__nav {
  display: flex;
  align-items: center;
  gap: clamp(0.7rem, 2vw, 1.6rem);
  margin-left: auto;
  font-family: var(--a-mono);
  font-size: 0.6rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.alt-header__nav a { position: relative; padding-block: 0.4rem; color: rgba(242, 240, 236, 0.72); transition: color 0.35s var(--a-ease); }
.alt-header__nav a::after {
  content: "";
  position: absolute; left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--a-gold);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.4s var(--a-ease);
}
.alt-header__nav a:hover { color: #F2F0EC; }
.alt-header__nav a:hover::after { transform: scaleX(1); }
@media (max-width: 767px) { .alt-header__nav { display: none; } }

.alt-header__cta {
  flex: none;
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--a-mono);
  font-size: 0.6rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--a-navy-deep);
  background: #F2F0EC;
  border-radius: 100px;
  padding: 0.6rem 1.1rem;
  transition: background 0.35s var(--a-ease), color 0.35s var(--a-ease);
}
@media (min-width: 768px) { .alt-header__cta { margin-left: 0; } }
.alt-header__cta svg { width: 12px; height: 12px; }
.alt-header__cta:hover { background: var(--a-gold); color: var(--a-navy-deep); }

/* =========================================================================
   PAGE CHROME
   ========================================================================= */
.alt-corners { position: fixed; inset: 0; z-index: 84; pointer-events: none; mix-blend-mode: difference; }
.alt-corners span {
  position: absolute;
  width: clamp(14px, 2.4vw, 22px);
  height: clamp(14px, 2.4vw, 22px);
  border: 0 solid rgba(200, 195, 230, 0.85);
}
.alt-corners span:nth-child(1) { top: 12px; left: 12px; border-top-width: 1px; border-left-width: 1px; }
.alt-corners span:nth-child(2) { top: 12px; right: 12px; border-top-width: 1px; border-right-width: 1px; }
.alt-corners span:nth-child(3) { bottom: 12px; left: 12px; border-bottom-width: 1px; border-left-width: 1px; }
.alt-corners span:nth-child(4) { bottom: 12px; right: 12px; border-bottom-width: 1px; border-right-width: 1px; }

.alt-grain {
  position: fixed;
  inset: -50%;
  z-index: 83;
  pointer-events: none;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: alt-grain-shift 0.9s steps(2) infinite;
}
@keyframes alt-grain-shift {
  0%   { transform: translate(0, 0); }
  50%  { transform: translate(-2%, 1%); }
  100% { transform: translate(1%, -2%); }
}

.alt-progress { position: fixed; inset: 0 0 auto 0; height: 2px; z-index: 86; pointer-events: none; }
.alt-progress span {
  display: block; height: 2px; width: 100%;
  background: linear-gradient(to right, var(--a-lav), var(--a-gold));
  transform: scaleX(0);
  transform-origin: left center;
}

/* Bottom-RIGHT, not left. The gutter caps at 72px while the HUD sits at
   ~36px, so on the left its second line ran underneath the first column
   of every section. The right edge is empty on desktop. */
.alt-hud {
  position: fixed;
  right: clamp(0.9rem, 2.5vw, 2.25rem);
  bottom: clamp(0.9rem, 3vh, 2rem);
  z-index: 55;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  text-align: right;
  gap: 0.2rem;
  font-family: var(--a-mono);
  font-size: clamp(0.5rem, 1.4vw, 0.6rem);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  pointer-events: none;
  mix-blend-mode: difference;
  color: #9A91C9;
}
.alt-hud__alt b { color: #D8CBAA; font-weight: 500; font-variant-numeric: tabular-nums; }
.alt-hud__ch {
  color: rgba(154, 145, 201, 0.7);
  line-height: 1.4;
  white-space: nowrap;          /* one line, never wrapping into content */
}
/* Below this there simply is not room beside the content column. */
@media (max-width: 1180px) { .alt-hud { display: none; } }
.alt-hud.is-hidden { opacity: 0; transition: opacity 0.5s var(--a-ease); }
/* the sticky bar owns the bottom-left on phones */
@media (max-width: 760px) { .alt-hud { display: none; } }

.alt-peek {
  position: fixed;
  left: 0; top: 0;
  z-index: 70;
  width: clamp(220px, 20vw, 320px);
  aspect-ratio: 4 / 5;
  border-radius: 6px;
  overflow: hidden;
  pointer-events: none;
  opacity: 0;
  transform: scale(0.9) rotate(-2deg);
  box-shadow: 0 40px 80px -40px rgba(6, 18, 35, 0.7);
  display: none;
}
@media (min-width: 900px) and (hover: hover) { .alt-peek { display: block; } }
.alt-peek img { width: 100%; height: 100%; object-fit: cover; }
.alt-peek__tag {
  position: absolute;
  left: 0.7rem; bottom: 0.7rem;
  font-family: var(--a-mono);
  font-size: 0.55rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #F4F2EE;
  background: rgba(6, 18, 35, 0.68);
  padding: 0.35rem 0.6rem;
  border-radius: 2px;
}

/* Preloader — brief, and only on the first visit of a session */
.alt-preloader {
  position: fixed; inset: 0; z-index: 200;
  display: none;
  background: var(--a-navy-deep);
  color: #F2F0EC;
}
.alt-preloader.is-on { display: grid; place-items: center; }
.alt-preloader__inner { display: grid; gap: 1.1rem; justify-items: center; text-align: center; }
.alt-preloader__mark { width: clamp(40px, 8vw, 56px); height: auto; filter: drop-shadow(0 0 24px rgba(194, 160, 99, 0.35)); }
.alt-preloader__mark path:last-child { fill: #F2F0EC; }
.alt-preloader__brand {
  font-family: var(--a-mono);
  font-size: 0.6rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: rgba(242, 240, 236, 0.55);
}
.alt-preloader__brand i { font-style: normal; color: var(--a-gold); }
.alt-preloader__bar { width: min(56vw, 260px); height: 1px; background: rgba(169, 160, 216, 0.25); overflow: hidden; }
.alt-preloader__bar i {
  display: block; height: 1px; width: 100%;
  background: linear-gradient(to right, var(--a-lav), var(--a-gold));
  transform: scaleX(0);
  transform-origin: left center;
}

/* =========================================================================
   LAYOUT + SURFACES
   ========================================================================= */
.alt-wrap {
  width: 100%;
  max-width: var(--a-maxw);
  margin-inline: auto;
  padding-inline: var(--a-gutter);
}

.alt-sec {
  position: relative;
  padding-block: clamp(3.5rem, 10vw, 8rem);
  scroll-margin-top: var(--a-header);
}
.alt-hero, .alt-summit { scroll-margin-top: var(--a-header); }

.alt-sec--dark {
  --a-bg:        var(--a-navy-deep);
  --a-ink:       #F2F0EC;
  --a-ink-dim:   rgba(242, 240, 236, 0.68);
  --a-ink-faint: rgba(242, 240, 236, 0.4);
  --a-line:      rgba(169, 160, 216, 0.2);
  --a-data:      var(--a-lav);
  background: var(--a-bg);
  color: var(--a-ink);
  isolation: isolate;
}
.alt-sec--paper { background: var(--a-paper); }
.alt-sec--white { background: var(--a-white); }
.alt-sec--lav {
  background:
    radial-gradient(120% 90% at 8% 0%, rgba(169, 160, 216, 0.36) 0%, rgba(169, 160, 216, 0) 60%),
    radial-gradient(90% 80% at 95% 100%, rgba(194, 160, 99, 0.15) 0%, rgba(194, 160, 99, 0) 62%),
    linear-gradient(180deg, #FBFAF6 0%, #F1EEFA 55%, var(--a-paper) 100%);
}

.alt-gap-t  { margin-top: 1rem; }
.alt-gap-t2 { margin-top: 2rem; }

/* =========================================================================
   TYPE
   ========================================================================= */
.alt-eyebrow {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem 0.7rem;
  font-family: var(--a-mono);
  font-size: var(--a-s--1);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--a-ink-faint);
  margin-bottom: clamp(1.25rem, 4vw, 2.5rem);
}
.alt-eyebrow b { flex: none; color: var(--a-data); font-weight: 500; font-variant-numeric: tabular-nums; }
.alt-eyebrow i { display: none; }
@media (min-width: 700px) {
  .alt-eyebrow i {
    display: block; flex: 1 1 auto; height: 1px;
    background: var(--a-line);
    transform-origin: left center;
    font-style: normal;
  }
}

.alt-h2 {
  font-family: var(--a-display);
  font-optical-sizing: none;
  font-variation-settings: "opsz" 28;
  font-weight: 400;
  font-size: var(--a-s-3);
  line-height: 1.05;
  letter-spacing: -0.018em;
}
.alt-h2 em { font-style: italic; color: var(--a-gold-deep); }
.alt-sec--dark .alt-h2 em { color: var(--a-gold); }

.alt-lede { font-size: var(--a-s-1); line-height: 1.55; font-weight: 300; color: var(--a-ink-dim); max-width: 46ch; }
.alt-body { color: var(--a-ink-dim); max-width: 62ch; }
.alt-label {
  font-family: var(--a-mono);
  font-size: var(--a-s--1);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--a-ink-faint);
}
.alt-num { font-family: var(--a-mono); font-variant-numeric: tabular-nums; }

.alt-head { display: grid; gap: clamp(1rem, 4vw, 2.5rem); margin-bottom: clamp(2rem, 6vw, 3.5rem); }
@media (min-width: 900px) {
  .alt-head { grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr); align-items: end; }
}
.alt-head__solo { max-width: 22ch; margin-bottom: clamp(2rem, 6vw, 3.5rem); }

.alt-fine {
  font-family: var(--a-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  line-height: 1.8;
  color: var(--a-ink-faint);
  max-width: 52ch;
}

.alt-w { display: inline-block; overflow: hidden; vertical-align: bottom; padding-bottom: 0.14em; margin-bottom: -0.14em; }
.alt-wi { display: inline-block; will-change: transform; }

/* =========================================================================
   BUTTONS
   ========================================================================= */
.alt-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.7rem;
  width: 100%;
  padding: 1rem 1.6rem;
  font-family: var(--a-mono);
  font-size: var(--a-s--1);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  white-space: nowrap;
  border: 1px solid var(--a-line);
  border-radius: 100px;
  color: var(--a-ink);
  overflow: hidden;
  transition: color 0.4s var(--a-ease), border-color 0.4s var(--a-ease);
  -webkit-tap-highlight-color: transparent;
}
@media (min-width: 480px) { .alt-btn { width: auto; } }
.alt-btn::before {
  content: "";
  position: absolute; inset: 0;
  background: var(--a-gold);
  border-radius: 100px;
  transform: scaleY(0);
  transform-origin: bottom center;
  transition: transform 0.45s var(--a-ease);
}
.alt-btn > * { position: relative; }
.alt-btn:hover { border-color: var(--a-gold); color: var(--a-white); }
.alt-btn:hover::before { transform: scaleY(1); }
.alt-btn svg { width: 14px; height: 14px; flex: none; transition: transform 0.45s var(--a-ease); }
.alt-btn:hover svg { transform: translateX(4px); }

.alt-btn--solid { background: var(--a-navy); color: var(--a-paper); border-color: var(--a-navy); }
.alt-btn--solid::before { background: var(--a-gold-deep); }
.alt-btn--solid:hover { border-color: var(--a-gold-deep); }
.alt-sec--dark .alt-btn--solid { background: var(--a-gold); color: var(--a-navy-deep); border-color: var(--a-gold); }
.alt-sec--dark .alt-btn--solid::before { background: var(--a-gold-hi); }
.alt-sec--dark .alt-btn--solid:hover { color: var(--a-navy-deep); border-color: var(--a-gold-hi); }

.alt-btn--light { background: #F4F2EE; color: var(--a-navy-deep); border-color: #F4F2EE; }
.alt-btn--light::before { background: var(--a-gold); }
.alt-btn--light:hover { color: var(--a-navy-deep); border-color: var(--a-gold); }

.alt-btn--ghost { border-color: rgba(255, 255, 255, 0.35); color: #F4F2EE; }

.alt-actions {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  margin-top: clamp(1.75rem, 5vw, 2.5rem);
}
@media (min-width: 480px) { .alt-actions { flex-direction: row; flex-wrap: wrap; align-items: center; } }

.alt-checks { display: grid; gap: 0.85rem; }
.alt-check {
  display: grid;
  grid-template-columns: 16px 1fr;
  gap: 0.8rem;
  align-items: start;
  color: var(--a-ink-dim);
  font-size: 0.95rem;
}
.alt-check svg { width: 16px; height: 16px; margin-top: 0.35em; color: var(--a-gold-deep); }
.alt-sec--dark .alt-check svg { color: var(--a-gold); }

.alt-mail { color: var(--a-gold); font-size: var(--a-s-1); }

/* =========================================================================
   THE SECTION CTA BAND
   One component, once per chapter, so the ask is never more than a screen
   away and the visitor learns its shape rather than hunting for it.
   ========================================================================= */
.alt-cta {
  display: grid;
  gap: 1rem;
  margin-top: clamp(2rem, 6vw, 3.5rem);
  padding: clamp(1.25rem, 3.5vw, 2rem);
  border: 1px solid var(--a-line);
  border-radius: 12px;
  background:
    linear-gradient(120deg, rgba(194, 160, 99, 0.07) 0%, rgba(194, 160, 99, 0) 55%),
    rgba(255, 255, 255, 0.55);
}
@media (min-width: 820px) {
  .alt-cta { grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 2rem; }
}
.alt-cta__line {
  font-size: var(--a-s-1);
  line-height: 1.5;
  font-weight: 300;
  color: var(--a-ink-dim);
  max-width: 52ch;
}
.alt-cta__acts { display: flex; flex-wrap: wrap; align-items: center; gap: 0.75rem 1.25rem; }
.alt-cta__btn { flex: none; }
.alt-cta__tel {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--a-mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--a-ink-faint);
  transition: color 0.3s var(--a-ease);
}
.alt-cta__tel svg { width: 13px; height: 13px; }
.alt-cta__tel:hover { color: var(--a-gold-deep); }

/* In a narrow column the two-column band starves the text — the button
   column takes max-content and the copy is left wrapping one word per
   line. Any band inside a sidebar stays stacked regardless of viewport. */
.alt-faq__aside .alt-cta,
.alt-how__aside .alt-cta,
.alt-cta--stack {
  grid-template-columns: 1fr !important;
  gap: 1rem !important;
}
.alt-faq__aside .alt-cta__line,
.alt-how__aside .alt-cta__line,
.alt-cta--stack .alt-cta__line { max-width: none; }
.alt-faq__aside .alt-cta__btn,
.alt-cta--stack .alt-cta__btn { width: 100%; justify-content: center; }

.alt-cta--dark {
  border-color: rgba(169, 160, 216, 0.25);
  background:
    linear-gradient(120deg, rgba(194, 160, 99, 0.12) 0%, rgba(194, 160, 99, 0) 55%),
    rgba(10, 29, 59, 0.45);
}
.alt-cta--dark .alt-cta__line { color: rgba(242, 240, 236, 0.76); }
.alt-cta--dark .alt-cta__tel { color: rgba(242, 240, 236, 0.5); }
.alt-cta--dark .alt-cta__tel:hover { color: var(--a-gold); }

/* =========================================================================
   STICKY CONTACT BAR — phones only
   ========================================================================= */
.alt-bar {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 90;
  display: none;
  gap: 8px;
  padding: 9px 12px calc(9px + env(safe-area-inset-bottom, 0px));
  background: rgba(6, 18, 35, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid rgba(169, 160, 216, 0.2);
  transform: translateY(110%);
  transition: transform 0.45s var(--a-ease);
}
.alt-bar.is-up { transform: translateY(0); }

@media (max-width: 760px) {
  .alt-bar { display: flex; }
  /* room for the bar so it never sits on top of the footer's last line */
  .alt-footer { padding-bottom: calc(4.5rem + env(safe-area-inset-bottom, 0px)); }
}

.alt-bar__tel {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.85rem 1rem;
  border-radius: 100px;
  border: 1px solid rgba(169, 160, 216, 0.35);
  color: #F2F0EC;
  font-family: var(--a-mono);
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.alt-bar__tel svg { width: 13px; height: 13px; }

.alt-bar__cta {
  flex: 1 1 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1rem;
  border-radius: 100px;
  background: var(--a-gold);
  color: var(--a-navy-deep);
  font-family: var(--a-mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.alt-bar__cta svg { width: 13px; height: 13px; }

/* =========================================================================
   CH.01 — HERO
   ========================================================================= */
.alt-hero { position: relative; }
.alt-hero__stage {
  position: relative;
  height: 100svh;
  overflow: hidden;
  isolation: isolate;
  color: #F2F0EC;
  background:
    radial-gradient(80% 60% at 62% 42%, rgba(110, 95, 168, 0.28) 0%, rgba(110, 95, 168, 0) 60%),
    radial-gradient(60% 50% at 30% 80%, rgba(194, 160, 99, 0.1) 0%, rgba(194, 160, 99, 0) 60%),
    linear-gradient(200deg, #0B1030 0%, #061223 55%, #0A0A22 100%);
}
.alt-hero__canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 1; }

.alt-hero__glow {
  position: absolute;
  left: 50%; top: 46%;
  width: min(90vw, 70svh);
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(194, 160, 99, 0.14) 0%, rgba(169, 160, 216, 0.1) 38%, rgba(169, 160, 216, 0) 68%);
  pointer-events: none;
  z-index: 0;
  animation: alt-glow 7s ease-in-out infinite alternate;
}
@keyframes alt-glow {
  from { opacity: 0.7; transform: translate(-50%, -50%) scale(0.96); }
  to   { opacity: 1;   transform: translate(-50%, -50%) scale(1.05); }
}

.alt-hero__veil { position: absolute; inset: 0; background: var(--a-navy-deep); opacity: 0; pointer-events: none; z-index: 4; }

.alt-hero__copy {
  position: absolute;
  left: var(--a-gutter);
  right: var(--a-gutter);
  top: calc(var(--a-header) + clamp(1.5rem, 6vh, 4rem));
  z-index: 3;
  pointer-events: none;
  will-change: transform, opacity;
}
.alt-hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--a-mono);
  font-size: var(--a-s--1);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(244, 242, 238, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 100px;
  padding: 0.45rem 0.95rem;
  margin-bottom: clamp(1rem, 3vw, 1.75rem);
  background: rgba(6, 18, 35, 0.35);
}
.alt-hero__pulse { width: 6px; height: 6px; border-radius: 50%; background: var(--a-gold); animation: alt-pulse 2.6s infinite; }
@keyframes alt-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(194, 160, 99, 0.55); }
  70%  { box-shadow: 0 0 0 11px rgba(194, 160, 99, 0); }
  100% { box-shadow: 0 0 0 0 rgba(194, 160, 99, 0); }
}

.alt-hero__h1 {
  font-family: var(--a-display);
  font-optical-sizing: none;
  font-variation-settings: "opsz" 40;
  font-weight: 400;
  font-size: clamp(2.5rem, 4.8vw + 1.4rem, 6.6rem);
  line-height: 1.02;
  letter-spacing: -0.028em;
  color: #FFFFFF;
  text-shadow: 0 2px 50px rgba(6, 18, 35, 0.6);
  max-width: 12ch;
}
.alt-hero__l { display: block; will-change: transform, opacity; }
.alt-hero__l i { font-style: normal; color: var(--a-gold); }
.alt-hero__l em { font-style: italic; color: var(--a-gold-hi); }

.alt-hero__foot {
  position: absolute;
  left: var(--a-gutter);
  right: var(--a-gutter);
  bottom: clamp(3.4rem, 10vh, 5.5rem);
  z-index: 3;
  display: grid;
  gap: 1.5rem;
}
@media (min-width: 900px) {
  .alt-hero__foot { grid-template-columns: 1fr minmax(0, 380px); align-items: end; }
}
.alt-hero__actions { margin-top: 0; }
.alt-hero__blurb {
  font-size: 0.92rem;
  line-height: 1.65;
  color: rgba(244, 242, 238, 0.72);
  max-width: 44ch;
  will-change: transform, opacity;
}
@media (min-width: 900px) { .alt-hero__blurb { text-align: right; justify-self: end; } }

.alt-hero__scroll {
  position: absolute;
  left: 50%; bottom: clamp(0.9rem, 3.5vh, 1.8rem);
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--a-mono);
  font-size: 0.58rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  white-space: nowrap;
  color: rgba(244, 242, 238, 0.6);
}
.alt-hero__scroll span { width: 46px; height: 1px; background: rgba(255, 255, 255, 0.3); position: relative; overflow: hidden; }
.alt-hero__scroll span::after {
  content: "";
  position: absolute; inset: 0;
  background: var(--a-gold);
  transform-origin: left center;
  animation: alt-sweep 2.4s var(--a-ease) infinite;
}
@keyframes alt-sweep {
  0%   { transform: translateX(-100%); }
  60%  { transform: translateX(0%); }
  100% { transform: translateX(100%); }
}
@media (max-width: 760px) { .alt-hero__scroll { display: none; } }

/* =========================================================================
   CH.02 — MANIFESTO
   ========================================================================= */
.alt-manif { overflow: hidden; }
.alt-manif__ghost {
  position: absolute;
  right: -8%; top: 50%;
  transform: translateY(-50%);
  width: clamp(280px, 46vw, 640px);
  color: var(--a-lav);
  opacity: 0.06;
  pointer-events: none;
  z-index: 0;
  will-change: transform;
}
.alt-manif__ghostmark { width: 100%; height: auto; }
.alt-manif__wrap { position: relative; z-index: 1; max-width: 1100px; }
.alt-manif__text {
  font-family: var(--a-display);
  font-optical-sizing: none;
  font-variation-settings: "opsz" 24;
  font-weight: 400;
  font-size: clamp(1.4rem, 1.1rem + 2.4vw, 3.1rem);
  line-height: 1.28;
  letter-spacing: -0.012em;
  color: var(--a-ink);
}
.alt-manif__text em { font-style: italic; color: var(--a-gold); }
.alt-manif.is-pin .alt-manif__wrap { min-height: calc(100svh - var(--a-header) * 2); display: grid; align-content: center; }

/* =========================================================================
   CH.04 — ELEVEN SECONDS
   ========================================================================= */
.alt-search__grid { display: grid; gap: clamp(2rem, 7vw, 3.5rem); }
@media (min-width: 900px) {
  .alt-search__grid { grid-template-columns: minmax(0, 1fr) minmax(300px, 0.8fr); align-items: center; }
}
.alt-search__note { margin-top: 1.5rem; }

.alt-beats { margin-top: clamp(1.25rem, 4vw, 2rem); }
.alt-beat {
  display: grid;
  grid-template-columns: 3.6rem 1fr;
  gap: 0.85rem;
  align-items: start;
  font-size: var(--a-s-1);
  line-height: 1.5;
  font-weight: 300;
  color: var(--a-ink-dim);
}
.alt-beat + .alt-beat { margin-top: 1.5rem; }
.alt-beat b {
  font-family: var(--a-mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--a-gold);
  padding-top: 0.5em;
}

.alt-phone {
  position: relative;
  width: min(320px, 78vw);
  margin-inline: auto;
  border: 1px solid var(--a-line);
  border-radius: 26px;
  padding: 9px;
  background: linear-gradient(165deg, #1A2F50 0%, #070E1B 100%);
  box-shadow: 0 50px 90px -50px rgba(0, 0, 0, 0.9);
  transform-style: preserve-3d;
  will-change: transform;
}
.alt-phone__notch {
  position: absolute;
  top: 15px; left: 50%;
  transform: translateX(-50%);
  width: 68px; height: 4px;
  border-radius: 4px;
  background: rgba(169, 160, 216, 0.3);
  z-index: 3;
}
.alt-phone__screen { border-radius: 18px; background: #0B1729; overflow: hidden; padding: 28px 9px 10px; display: grid; gap: 7px; }
.alt-phone__bar { display: flex; align-items: center; gap: 6px; border: 1px solid var(--a-line); border-radius: 100px; padding: 7px 11px; min-height: 32px; }
.alt-phone__bar svg { width: 12px; height: 12px; color: var(--a-ink-faint); }
.alt-phone__q { font-family: var(--a-mono); font-size: 0.64rem; color: var(--a-ink); white-space: nowrap; }
.alt-phone__caret { width: 1px; height: 12px; background: var(--a-gold); opacity: 0; }
.alt-phone__map { border: 1px solid var(--a-line); border-radius: 7px; overflow: hidden; height: 92px; }
.alt-phone__map svg { width: 100%; height: 100%; }

.alt-res {
  position: relative;
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 8px;
  align-items: start;
  border: 1px solid var(--a-line);
  border-radius: 6px;
  padding: 8px;
  background: rgba(10, 29, 59, 0.5);
  overflow: hidden;
}
.alt-res__scan {
  position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(169, 160, 216, 0) 0%, rgba(169, 160, 216, 0.18) 50%, rgba(169, 160, 216, 0) 100%);
  transform: translateX(-105%);
  pointer-events: none;
}
.alt-res__k {
  font-family: var(--a-mono);
  font-size: 0.55rem;
  color: var(--a-ink-faint);
  border: 1px solid var(--a-line);
  border-radius: 3px;
  width: 18px; height: 18px;
  display: grid; place-items: center;
}
.alt-res__b { display: grid; gap: 3px; min-width: 0; }
.alt-res__n { font-family: var(--a-display); font-size: 0.8rem; line-height: 1.15; color: var(--a-ink-dim); }
.alt-res__r { display: flex; align-items: center; gap: 4px; }
.alt-res__r svg { width: 8px; height: 8px; fill: rgba(169, 160, 216, 0.3); }
.alt-res__r svg.on { fill: var(--a-gold); }
.alt-res__s { font-family: var(--a-mono); font-size: 0.58rem; color: var(--a-ink); }
.alt-res__c { font-family: var(--a-mono); font-size: 0.54rem; color: var(--a-ink-faint); }
.alt-res__m { font-family: var(--a-mono); font-size: 0.53rem; color: var(--a-ink-faint); }
.alt-res__f { display: flex; flex-wrap: wrap; gap: 3px; }
.alt-res__f span {
  font-family: var(--a-mono);
  font-size: 0.48rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--a-ink-faint);
  border: 1px solid var(--a-line);
  border-radius: 2px;
  padding: 1px 4px;
}
.alt-res__meter { grid-column: 1 / -1; height: 2px; background: rgba(169, 160, 216, 0.2); margin-top: 3px; }
.alt-res__meter i { display: block; height: 2px; width: 0%; background: var(--a-lav); }
.alt-res--win { border-color: rgba(194, 160, 99, 0.3); }
.alt-res--win .alt-res__n { color: var(--a-ink); }
.alt-res--win .alt-res__meter i { background: var(--a-gold); }

.alt-phone__booked {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 1px solid rgba(194, 160, 99, 0.5);
  background: rgba(194, 160, 99, 0.14);
  border-radius: 6px;
  padding: 8px;
  font-family: var(--a-mono);
  font-size: 0.58rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--a-gold);
}
.alt-phone__booked svg { width: 12px; height: 12px; }

/* =========================================================================
   CH.05 — WHO WE WORK WITH
   ========================================================================= */
.alt-index { border-top: 1px solid var(--a-line); }

.alt-row {
  position: relative;
  display: grid;
  grid-template-columns: 2rem 76px 1fr;
  grid-template-areas:
    "i thumb n"
    "i thumb c"
    "i thumb m";
  gap: 0.4rem 1rem;
  align-items: center;
  padding-block: clamp(1.1rem, 4.5vw, 2.4rem);
  border-bottom: 1px solid var(--a-line);
  overflow: hidden;
  will-change: transform;
}
.alt-row__i { grid-area: i; align-self: start; padding-top: 0.4rem; }
.alt-row__thumb { grid-area: thumb; }
.alt-row__n { grid-area: n; }
.alt-row__c { grid-area: c; }
.alt-row__m { grid-area: m; }

.alt-row__thumb {
  position: relative;
  width: 76px;
  aspect-ratio: 4 / 5;
  border-radius: 5px;
  overflow: hidden;
  box-shadow: 0 14px 28px -18px rgba(6, 18, 35, 0.6);
}
.alt-row__thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s var(--a-ease); }
.alt-row:hover .alt-row__thumb img { transform: scale(1.08); }

@media (min-width: 900px) and (hover: hover) {
  .alt-row {
    grid-template-columns: 3.2rem minmax(0, 0.9fr) minmax(0, 1.1fr) auto;
    grid-template-areas: "i n c m";
    gap: clamp(1rem, 2.5vw, 2.5rem);
  }
  .alt-row__thumb { display: none; }
  .alt-row__i { align-self: center; padding-top: 0; }
}

.alt-row__wash {
  position: absolute; inset: 0;
  background: var(--a-navy);
  transform: scaleY(0);
  transform-origin: bottom center;
  transition: transform 0.5s var(--a-ease);
  pointer-events: none;
}
.alt-row:hover .alt-row__wash { transform: scaleY(1); }

.alt-row__i { position: relative; font-family: var(--a-mono); font-size: 0.62rem; color: var(--a-ink-faint); transition: color 0.4s var(--a-ease); }
.alt-row__n {
  position: relative;
  font-family: var(--a-display);
  font-size: clamp(1.7rem, 6vw, 4rem);
  line-height: 1;
  letter-spacing: -0.02em;
  transition: color 0.4s var(--a-ease), transform 0.5s var(--a-ease);
}
.alt-row__c { position: relative; color: var(--a-ink-dim); font-size: 0.92rem; max-width: 44ch; transition: color 0.4s var(--a-ease); }
.alt-row__m {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--a-mono);
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--a-ink-faint);
  transition: color 0.4s var(--a-ease);
}
.alt-row__m svg { width: 12px; height: 12px; transition: transform 0.4s var(--a-ease); }
@media (min-width: 900px) and (hover: hover) { .alt-row__m { white-space: nowrap; justify-self: end; } }
.alt-row:hover .alt-row__i { color: var(--a-gold); }
.alt-row:hover .alt-row__n { color: var(--a-paper); transform: translateX(0.4rem); }
.alt-row:hover .alt-row__c { color: rgba(245, 242, 235, 0.75); }
.alt-row:hover .alt-row__m { color: var(--a-gold); }
.alt-row:hover .alt-row__m svg { transform: translate(2px, -2px); }

/* =========================================================================
   CH.06 — WHY US
   ========================================================================= */
.alt-why { display: grid; gap: clamp(0.9rem, 3vw, 1.4rem); }
@media (min-width: 700px) { .alt-why { grid-template-columns: repeat(3, minmax(0, 1fr)); } }

.alt-pillar {
  position: relative;
  border: 1px solid var(--a-line);
  border-radius: 8px;
  background: var(--a-white);
  padding: clamp(1.4rem, 5vw, 2.2rem);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  overflow: hidden;
  transform-style: preserve-3d;
  will-change: transform;
  box-shadow: 0 24px 50px -40px rgba(10, 29, 59, 0.5);
  transition: box-shadow 0.5s var(--a-ease), border-color 0.5s var(--a-ease);
}
.alt-pillar:hover { border-color: rgba(194, 160, 99, 0.5); box-shadow: 0 40px 70px -40px rgba(10, 29, 59, 0.55); }
.alt-pillar__glow {
  position: absolute; inset: -30%;
  background: radial-gradient(45% 45% at 70% 20%, rgba(194, 160, 99, 0.18) 0%, rgba(194, 160, 99, 0) 70%);
  opacity: 0;
  transition: opacity 0.6s var(--a-ease);
  pointer-events: none;
}
.alt-pillar:hover .alt-pillar__glow { opacity: 1; }
.alt-pillar__n { position: relative; font-family: var(--a-mono); font-size: 0.62rem; letter-spacing: 0.16em; color: var(--a-gold-deep); }
.alt-pillar__fig { position: relative; width: 100%; height: auto; color: var(--a-data); }
.alt-pillar__t { position: relative; font-family: var(--a-display); font-size: var(--a-s-2); line-height: 1.1; }
.alt-pillar__c { position: relative; color: var(--a-ink-dim); font-size: 0.95rem; }

/* =========================================================================
   CH.03 — THE CHANNELS

   Nine channels, each drawn in the surface it actually appears on. All of
   it is CSS and DOM — no canvas, no WebGL — because these are interface
   mock-ups and the browser already draws interfaces beautifully.

   Layout: on desktop the channel list sits left and the surface right; on
   phones the list becomes a scroll-snapped chip rail above the surface.
   ========================================================================= */

.alt-ch-sec { overflow: hidden; }

.alt-ch {
  width: 100%;
  max-width: var(--a-maxw);
  margin: clamp(1.5rem, 5vw, 2.5rem) auto 0;
  padding-inline: var(--a-gutter);
  display: grid;
  gap: clamp(1rem, 2.5vw, 1.75rem);
}
@media (min-width: 1000px) {
  .alt-ch {
    grid-template-columns: minmax(0, 260px) minmax(0, 1fr);
    grid-template-areas: "nav stage" "out out";
    align-items: start;
  }
  .alt-ch__nav   { grid-area: nav; }
  .alt-ch__stage { grid-area: stage; }
  .alt-ch__out   { grid-area: out; }
}

/* ── channel picker ───────────────────────────────────────────────── */
.alt-ch__nav {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding-bottom: 2px;
}
.alt-ch__nav::-webkit-scrollbar { display: none; }
@media (min-width: 1000px) {
  .alt-ch__nav {
    flex-direction: column;
    overflow: visible;
    gap: 2px;
    position: sticky;
    top: calc(var(--a-header) + 4vh);
  }
}

.alt-ch__tab {
  position: relative;
  flex: 0 0 auto;
  scroll-snap-align: start;
  display: grid;
  gap: 2px;
  text-align: left;
  padding: 0.72rem 0.9rem;
  border-radius: 10px;
  border: 1px solid rgba(169, 160, 216, 0.16);
  background: rgba(10, 16, 36, 0.5);
  transition: border-color 0.35s var(--a-ease), background 0.35s var(--a-ease);
}
@media (min-width: 1000px) {
  .alt-ch__tab {
    grid-template-columns: 2rem 1fr;
    grid-template-areas: "n t" "n m";
    gap: 0 0.7rem;
    align-items: center;
    border: 0;
    border-radius: 0;
    border-left: 1px solid var(--a-line);
    background: none;
    padding: 0.85rem 1rem;
  }
  .alt-ch__tab-n { grid-area: n; }
  .alt-ch__tab-t { grid-area: t; }
  .alt-ch__tab-m { grid-area: m; }
}
.alt-ch__tab:hover { border-color: rgba(194, 160, 99, 0.4); }
@media (min-width: 1000px) {
  .alt-ch__tab:hover { border-left-color: rgba(194, 160, 99, 0.5); background: rgba(194, 160, 99, 0.04); }
  .alt-ch__tab.is-on {
    border-left-color: var(--acc, var(--a-gold));
    background: linear-gradient(90deg, color-mix(in srgb, var(--acc, #C2A063) 14%, transparent), transparent 70%);
  }
}
.alt-ch__tab.is-on { border-color: var(--a-gold); background: rgba(194, 160, 99, 0.12); }

/* A dot on every tab, lit on the active one. Without a persistent marker
   the switch reads as "nothing happened" on a quick click. */
.alt-ch__tab::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 0.7rem;
  width: 6px; height: 6px;
  margin-top: -3px;
  border-radius: 50%;
  background: rgba(169, 160, 216, 0.3);
  transition: background 0.3s var(--a-ease), box-shadow 0.3s var(--a-ease);
}
.alt-ch__tab.is-on::after {
  background: var(--acc, var(--a-gold-hi));
  box-shadow: 0 0 12px var(--acc, rgba(232, 196, 137, 0.9));
}
@media (max-width: 999px) { .alt-ch__tab::after { display: none; } }

/* Pressing a tab should feel like pressing something. */
.alt-ch__tab:active { transform: scale(0.98); }

/* The autoplay countdown. --p is written by the engine each frame; the
   bar is the only thing telling the visitor the deck is advancing on its
   own, which is what stops the next switch reading as a glitch. */
.alt-ch__tab::before {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--acc, var(--a-gold-hi)));
  transform: scaleX(var(--p, 0));
  transform-origin: left center;
  opacity: 0;
  border-radius: 0 0 9px 9px;
}
.alt-ch__tab.is-on::before { opacity: 1; }
@media (min-width: 1000px) {
  .alt-ch__tab::before { border-radius: 0; }
}
.alt-ch.is-paused .alt-ch__tab::before { opacity: 0.25; }

/* A quiet marker that the deck is cycling, and that hovering stops it. */
.alt-ch__swipe {
  display: none;
  align-items: center;
  gap: 0.45rem;
  justify-content: center;
  margin-top: 0.7rem;
  font-family: var(--a-mono);
  font-size: 0.5rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(242, 240, 236, 0.32);
}
.alt-ch__swipe i { font-style: normal; color: var(--a-gold); }
@media (max-width: 999px) { .alt-ch__swipe { display: flex; } }

.alt-ch__auto {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin-top: 0.7rem;
  font-family: var(--a-mono);
  font-size: 0.5rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(242, 240, 236, 0.3);
  transition: color 0.3s var(--a-ease);
}
.alt-ch__auto i {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--a-gold);
  animation: alt-ch-blink 2.4s ease-in-out infinite;
}
@keyframes alt-ch-blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.2; } }
.alt-ch.is-paused .alt-ch__auto i { animation: none; opacity: 0.3; }
@media (max-width: 999px) { .alt-ch__auto { display: none; } }

.alt-ch__tab-n {
  font-family: var(--a-mono);
  font-size: 0.48rem;
  letter-spacing: 0.18em;
  color: rgba(169, 160, 216, 0.6);
}
.alt-ch__tab.is-on .alt-ch__tab-n { color: var(--a-gold); }
.alt-ch__tab-t {
  font-family: var(--a-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(242, 240, 236, 0.86);
  display: none;
}
.alt-ch__tab-s {
  font-family: var(--a-mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(242, 240, 236, 0.86);
  white-space: nowrap;
}
.alt-ch__tab-m {
  font-family: var(--a-mono);
  font-size: 0.46rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(242, 240, 236, 0.34);
  display: none;
}
@media (min-width: 1000px) {
  .alt-ch__tab-t { display: block; }
  .alt-ch__tab-s { display: none; }
  .alt-ch__tab-m { display: block; }
}

/* ── the stage ────────────────────────────────────────────────────── */
/* ═════════════════════════════════════════════════════════════════════
   THE MEDIA ROOM

   The nine channels are a curved wall of screens. The live one faces you;
   its neighbours sit back and to the side, dimmed and slightly blurred,
   so the eye always knows there is more. Each channel carries an accent
   (--acc) that lights the floor, the dust and the presenter — the room
   changing colour as the wall turns is most of what makes this feel like
   a place rather than a tab strip.
   ═════════════════════════════════════════════════════════════════════ */
/* ═════════════════════════════════════════════════════════════════════
   THE MEDIA ROOM

   The nine channels are a curved wall of screens. The live one faces you;
   its neighbours sit back and to the side, dimmed and slightly blurred,
   so the eye always knows there is more. Each channel carries an accent
   (--acc) that lights the floor, the dust and the presenter — the room
   changing colour as the wall turns is most of what makes this feel like
   a place rather than a tab strip.
   ═════════════════════════════════════════════════════════════════════ */
.alt-ch__stage {
  position: relative;
  border-radius: 16px;
  border: 1px solid rgba(169, 160, 216, 0.18);
  overflow: hidden;
  perspective: 1600px;
  perspective-origin: 50% 42%;
  background:
    radial-gradient(130% 100% at 50% 0%, rgba(110, 95, 168, 0.16) 0%, rgba(110, 95, 168, 0) 62%),
    linear-gradient(178deg, #0A1024 0%, #05080F 100%);
  min-height: clamp(460px, 60vw, 620px);
  isolation: isolate;
}

/* ── the wall of screens ──────────────────────────────────────────── */
.alt-ch__panel {
  position: absolute;
  inset: 0;
  display: grid;
  gap: clamp(1rem, 3vw, 2rem);
  padding: clamp(1.1rem, 3vw, 2.2rem) clamp(1.1rem, 3vw, 2.2rem) clamp(3.4rem, 7vw, 5rem);
  align-content: center;
  z-index: 2;
  transform-style: preserve-3d;
  pointer-events: none;
  /* --d is how far this screen is from the front, written by the engine */
  opacity: 0;
  visibility: hidden;
  transform:
    translateX(calc(var(--d, 0) * 46%))
    translateZ(calc(var(--d, 0) * var(--d, 0) * -190px))
    rotateY(calc(var(--d, 0) * -34deg));
  transition:
    transform 0.9s cubic-bezier(0.22, 1, 0.28, 1),
    opacity 0.7s var(--a-ease),
    filter 0.7s var(--a-ease),
    visibility 0.7s;
}
@media (min-width: 780px) {
  .alt-ch__panel { grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr); align-items: center; }
}
/* neighbours are visible but clearly behind */
.alt-ch__panel.is-near,
.alt-ch__panel.is-far {
  opacity: 0.32;
  visibility: visible;
  filter: blur(2.5px) saturate(0.6);
}
.alt-ch__panel.is-far { opacity: 0.18; }
/* Blur on a complex subtree is the single most expensive thing here. On
   a phone the neighbours dim and recede instead — the depth still reads,
   the GPU does not fall over. */
@media (max-width: 780px), (hover: none) {
  .alt-ch__panel.is-near { filter: saturate(0.55) brightness(0.7); opacity: 0.26; }
}
.alt-ch__panel.is-on {
  opacity: 1;
  visibility: visible;
  filter: none;
  pointer-events: auto;
  z-index: 3;
}

/* the poster is what a screen shows while it is off to the side */
.alt-room__poster {
  position: absolute;
  inset: clamp(1.1rem, 3vw, 2.2rem);
  z-index: 2;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 0.7rem;
  border-radius: 12px;
  border: 1px solid color-mix(in srgb, var(--acc, #7E6BD8) 45%, transparent);
  background:
    radial-gradient(120% 100% at 50% 0%, color-mix(in srgb, var(--acc, #7E6BD8) 26%, transparent) 0%, transparent 68%),
    linear-gradient(170deg, rgba(12, 16, 34, 0.94), rgba(6, 9, 18, 0.96));
  opacity: 1;
  transition: opacity 0.5s var(--a-ease);
}
.alt-ch__panel.is-on .alt-room__poster { opacity: 0; }
.alt-room__poster i {
  font-style: normal;
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  color: var(--acc, #7E6BD8);
  text-shadow: 0 0 26px currentColor;
}
.alt-room__poster b {
  font-family: var(--a-mono);
  font-size: clamp(0.5rem, 1.1vw, 0.6rem);
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(242, 240, 236, 0.72);
  text-align: center;
}

/* ── the surface, floating in its screen ──────────────────────────── */
.alt-ch__surface {
  position: relative;
  z-index: 3;
  display: grid;
  place-items: center;
  min-width: 0;
  transform-style: preserve-3d;
  transform: rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg));
  will-change: transform;
}
.alt-ch__surface > * {
  transform-style: preserve-3d;
  animation: alt-ch-float 7s ease-in-out infinite;
  /* the device is lit by its own channel */
  box-shadow:
    0 40px 80px -40px rgba(0, 0, 0, 0.95),
    0 0 60px -18px color-mix(in srgb, var(--acc, #7E6BD8) 55%, transparent);
}
@keyframes alt-ch-float {
  0%, 100% { transform: translate3d(0, 0, 0); }
  50%      { transform: translate3d(0, -10px, 26px); }
}

/* ── the presenter ────────────────────────────────────────────────── */
.alt-room__guide {
  position: absolute;
  left: 50%;
  bottom: clamp(0.7rem, 2vw, 1.4rem);
  z-index: 4;
  width: clamp(38px, 5vw, 58px);
  pointer-events: none;
  transform: translateX(calc(-50% + var(--gx, 0px)));
  transition: transform 0.9s cubic-bezier(0.22, 1, 0.28, 1);
}
.alt-room__guide.is-hop .alt-guide__fig { animation: alt-guide-hop 0.72s cubic-bezier(0.25, 1, 0.3, 1); }
@keyframes alt-guide-hop {
  0%   { transform: translateY(0) scaleY(1); }
  22%  { transform: translateY(2px) scaleY(0.9); }
  55%  { transform: translateY(-16px) scaleY(1.06); }
  100% { transform: translateY(0) scaleY(1); }
}
.alt-guide__fig { width: 100%; height: auto; overflow: visible; animation: alt-guide-bob 3.4s ease-in-out infinite; }
@keyframes alt-guide-bob { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-3px); } }
.alt-guide__cape {
  fill: color-mix(in srgb, var(--room-acc, #7E6BD8) 70%, #100C22);
  transition: fill 1.1s var(--a-ease);
  transform-origin: 30px 30px;
  animation: alt-guide-cape 3.4s ease-in-out infinite;
}
@keyframes alt-guide-cape { 0%, 100% { transform: skewX(0deg); } 50% { transform: skewX(-4deg); } }
.alt-guide__body { fill: #F2F0EC; }
.alt-guide__head { fill: #F6F4F0; }
.alt-guide__leg  { stroke: #4A3F7A; stroke-width: 5; stroke-linecap: round; }
.alt-guide__arm  {
  stroke: #F2F0EC; stroke-width: 5; stroke-linecap: round;
  transform-origin: 38px 42px;
  animation: alt-guide-point 3.4s ease-in-out infinite;
}
@keyframes alt-guide-point { 0%, 100% { transform: rotate(0deg); } 50% { transform: rotate(-7deg); } }
.alt-guide__shadow {
  position: absolute;
  left: 50%; bottom: -5px;
  width: 130%; height: 10px;
  transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(0, 0, 0, 0.6), transparent 72%);
}

/* ── panel copy ───────────────────────────────────────────────────── */
.alt-ch__copy { min-width: 0; position: relative; z-index: 4; }

/* copy drifts in behind the surface, a beat later */
.alt-ch__copy > * {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s var(--a-ease), transform 0.6s var(--a-ease);
}
.alt-ch__panel.is-on .alt-ch__copy > * { opacity: 1; transform: none; }
.alt-ch__panel.is-on .alt-ch__copy > *:nth-child(1) { transition-delay: 0.10s; }
.alt-ch__panel.is-on .alt-ch__copy > *:nth-child(2) { transition-delay: 0.16s; }
.alt-ch__panel.is-on .alt-ch__copy > *:nth-child(3) { transition-delay: 0.22s; }
.alt-ch__panel.is-on .alt-ch__copy > *:nth-child(4) { transition-delay: 0.28s; }
/* only the front screen shows its words; the neighbours are scenery */
.alt-ch__panel:not(.is-on) .alt-ch__copy { opacity: 0; }
.alt-ch__kick {
  display: block;
  font-family: var(--a-mono);
  font-size: 0.56rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--a-gold);
  margin-bottom: 0.6rem;
}
.alt-ch__h {
  font-family: var(--a-display);
  font-optical-sizing: none;
  font-weight: 400;
  font-size: clamp(1.3rem, 2.4vw, 2rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: #F6F4F0;
  margin-bottom: 0.7rem;
}
.alt-ch__c { font-size: clamp(0.86rem, 1.2vw, 0.98rem); line-height: 1.6; color: rgba(242, 240, 236, 0.68); max-width: 44ch; }
.alt-ch__list { display: grid; gap: 0.45rem; margin-top: 1.1rem; }
.alt-ch__list li {
  position: relative;
  padding-left: 1.1rem;
  font-size: 0.82rem;
  line-height: 1.5;
  color: rgba(242, 240, 236, 0.55);
}
.alt-ch__list li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.6em;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--a-gold);
}

/* ═════════════════════════════════════════════════════════════════════
   SURFACE 01 · LAPTOP + DRAG TO COMPARE
   ═════════════════════════════════════════════════════════════════════ */
.alt-lap { width: min(100%, 460px); }
.alt-lap__screen {
  position: relative;
  aspect-ratio: 16 / 10;
  border-radius: 10px 10px 2px 2px;
  border: 1px solid rgba(169, 160, 216, 0.3);
  border-bottom: 0;
  overflow: hidden;
  background: #0B1729;
}
.alt-lap__base {
  display: block;
  height: 11px;
  border-radius: 0 0 9px 9px;
  background: linear-gradient(180deg, #2A2450, #141026);
  border: 1px solid rgba(169, 160, 216, 0.24);
  border-top: 0;
}
.alt-lap__base::after {
  content: "";
  display: block;
  width: 22%;
  height: 3px;
  margin: 3px auto 0;
  border-radius: 2px;
  background: rgba(169, 160, 216, 0.3);
}

.alt-ba { position: absolute; inset: 0; }
.alt-ba__after, .alt-ba__before { position: absolute; inset: 0; }
.alt-ba__before { clip-path: inset(0 calc(100% - var(--pos, 52%)) 0 0); }

.alt-ba__tag {
  position: absolute;
  top: 8px;
  z-index: 3;
  font-family: var(--a-mono);
  font-size: 0.44rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 3px 7px;
  border-radius: 100px;
}
.alt-ba__tag--before { left: 8px; background: rgba(10, 16, 36, 0.85); color: rgba(242, 240, 236, 0.6); border: 1px solid rgba(169, 160, 216, 0.3); }
.alt-ba__tag--after  { right: 8px; background: rgba(194, 160, 99, 0.9); color: #0A1D3B; }

.alt-ba__handle {
  position: absolute;
  top: 0; bottom: 0;
  left: var(--pos, 52%);
  width: 2px;
  margin-left: -1px;
  background: rgba(232, 196, 137, 0.9);
  z-index: 4;
  pointer-events: none;
}
.alt-ba__handle i {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--a-gold);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.5);
}
.alt-ba__handle i::before,
.alt-ba__handle i::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 0; height: 0;
  border-block: 4px solid transparent;
  transform: translateY(-50%);
}
.alt-ba__handle i::before { left: 6px;  border-right: 5px solid #0A1D3B; }
.alt-ba__handle i::after  { right: 6px; border-left:  5px solid #0A1D3B; }

/* the range input is the real control — invisible, but focusable and
   operable with a keyboard, which a bare pointer handler is not */
.alt-ba__range {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  margin: 0;
  opacity: 0;
  cursor: ew-resize;
  z-index: 5;
  -webkit-appearance: none;
  appearance: none;
  background: none;
}
.alt-ba__range::-webkit-slider-thumb { -webkit-appearance: none; width: 44px; height: 100%; }
.alt-ba__range::-moz-range-thumb { width: 44px; height: 100%; border: 0; background: transparent; }
.alt-ba__range:focus-visible ~ .alt-ba__handle i { outline: 2px solid #fff; outline-offset: 3px; }

/* the two mock sites */
.alt-site { position: absolute; inset: 0; display: grid; gap: 7px; padding: 26px 12px 12px; }
.alt-site--old { background: linear-gradient(180deg, #E9E7E2 0%, #DEDBD4 100%); }
.alt-site--new { background: linear-gradient(180deg, #0E1B30 0%, #0A1424 100%); }

.alt-site__bar { display: flex; align-items: center; gap: 6px; }
.alt-site__bar i { display: block; width: 22px; height: 4px; border-radius: 2px; }
.alt-site--old .alt-site__bar i { background: rgba(10, 29, 59, 0.28); }
.alt-site--new .alt-site__bar i { background: rgba(169, 160, 216, 0.4); }
.alt-site__bar b {
  margin-left: auto;
  font-family: var(--a-mono);
  font-size: 0.4rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--a-gold);
  color: #0A1D3B;
  padding: 3px 7px;
  border-radius: 100px;
}

.alt-site__hero { display: grid; gap: 5px; align-content: center; flex: 1; padding-block: 6px; }
.alt-site__hero b { font-family: var(--a-display); font-size: 0.95rem; line-height: 1.15; }
.alt-site__hero em { font-style: normal; font-family: var(--a-mono); font-size: 0.44rem; letter-spacing: 0.12em; text-transform: uppercase; }
.alt-site--old .alt-site__hero b { color: rgba(10, 29, 59, 0.72); font-size: 0.82rem; }
.alt-site--old .alt-site__hero em { color: rgba(10, 29, 59, 0.4); }
.alt-site--new .alt-site__hero b { color: #F6F4F0; }
.alt-site--new .alt-site__hero em { color: var(--a-gold); }

.alt-site__row { display: flex; gap: 6px; }
.alt-site__row i { flex: 1; height: 26px; border-radius: 4px; }
.alt-site--old .alt-site__row i { background: rgba(10, 29, 59, 0.12); }
.alt-site--new .alt-site__row i { background: rgba(169, 160, 216, 0.16); border: 1px solid rgba(169, 160, 216, 0.2); }

/* ═════════════════════════════════════════════════════════════════════
   SURFACE 02 / 06 · PHONE
   ═════════════════════════════════════════════════════════════════════ */
.alt-fone {
  position: relative;
  width: min(100%, 224px);
  border-radius: 26px;
  padding: 8px;
  background: linear-gradient(165deg, #251F45 0%, #0A0F1E 100%);
  border: 1px solid rgba(169, 160, 216, 0.26);
  box-shadow: 0 40px 70px -44px rgba(0, 0, 0, 0.9);
}
.alt-fone__notch {
  position: absolute;
  top: 14px; left: 50%;
  transform: translateX(-50%);
  width: 54px; height: 4px;
  border-radius: 4px;
  background: rgba(169, 160, 216, 0.3);
  z-index: 3;
}
.alt-fone__screen {
  position: relative;
  border-radius: 19px;
  background: #0B1729;
  overflow: hidden;
  padding: 26px 10px 12px;
  min-height: 300px;
  display: grid;
  gap: 8px;
  align-content: start;
}
.alt-fone__q {
  font-family: var(--a-mono);
  font-size: 0.52rem;
  color: rgba(242, 240, 236, 0.72);
  border: 1px solid rgba(169, 160, 216, 0.24);
  border-radius: 100px;
  padding: 6px 10px;
}

.alt-serp { display: grid; gap: 5px; }
.alt-serp__i {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(169, 160, 216, 0.16);
  border-radius: 6px;
  padding: 8px;
  background: rgba(10, 29, 59, 0.5);
  transition: border-color 0.5s var(--a-ease), background 0.5s var(--a-ease), transform 0.6s var(--a-ease);
}
.alt-serp__i b {
  flex: none;
  width: 17px; height: 17px;
  display: grid; place-items: center;
  border-radius: 4px;
  border: 1px solid rgba(169, 160, 216, 0.28);
  font-family: var(--a-mono);
  font-size: 0.5rem;
  color: rgba(242, 240, 236, 0.6);
}
.alt-serp__i span {
  flex: 1;
  height: 6px;
  border-radius: 3px;
  background: rgba(169, 160, 216, 0.2);
  font-family: var(--a-mono);
  font-size: 0.46rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: transparent;
}
.alt-serp__i--you {
  border-color: rgba(194, 160, 99, 0.55);
  background: rgba(194, 160, 99, 0.1);
  order: 9;
}
.alt-serp__i--you b { border-color: var(--a-gold); color: var(--a-gold); }
.alt-serp__i--you span {
  height: auto;
  background: none;
  color: var(--a-gold);
  display: flex;
  align-items: center;
}
.alt-serp__pin { font-style: normal; color: var(--a-gold); font-size: 0.6rem; }
/* the climb: JS flips this class and the flex order animates the move */
.alt-serp.is-top .alt-serp__i--you { order: -1; }

/* reel */
.alt-fone--reel .alt-fone__screen--reel { padding: 0; min-height: 320px; background: #120C22; }
.alt-reel__grade {
  position: absolute; inset: 0;
  background:
    radial-gradient(80% 60% at 50% 30%, rgba(110, 95, 168, 0.5) 0%, rgba(110, 95, 168, 0) 62%),
    linear-gradient(180deg, #2A1F4C 0%, #120C22 60%, #0A0714 100%);
}
.alt-reel__cap {
  position: absolute;
  left: 10px; right: 46px; bottom: 22px;
  font-size: 0.56rem;
  line-height: 1.5;
  color: rgba(242, 240, 236, 0.86);
}
.alt-reel__cap b { color: #fff; }
.alt-reel__side {
  position: absolute;
  right: 8px; bottom: 20px;
  display: grid;
  gap: 12px;
  justify-items: center;
  font-style: normal;
}
.alt-reel__side i {
  font-style: normal;
  font-family: var(--a-mono);
  font-size: 0.5rem;
  color: rgba(242, 240, 236, 0.8);
}
.alt-reel__prog {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 2px;
  background: rgba(255, 255, 255, 0.14);
}
.alt-reel__prog i { display: block; height: 2px; width: 0%; background: var(--a-gold); }

/* ═════════════════════════════════════════════════════════════════════
   SURFACE 03 · TELEVISION
   ═════════════════════════════════════════════════════════════════════ */
.alt-tv { position: relative; width: min(100%, 400px); }
.alt-tv__screen {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: 8px;
  border: 3px solid #14102A;
  overflow: hidden;
  background: linear-gradient(150deg, #1B2E52 0%, #0B1424 70%);
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 6px;
  box-shadow: 0 30px 60px -30px rgba(0, 0, 0, 0.9);
}
.alt-tv__grade {
  position: absolute; inset: 0;
  background: radial-gradient(70% 60% at 50% 40%, rgba(232, 196, 137, 0.22) 0%, rgba(232, 196, 137, 0) 65%);
}
.alt-tv__brand {
  position: relative;
  font-family: var(--a-display);
  font-size: clamp(1rem, 2.6vw, 1.5rem);
  color: #F6F4F0;
  letter-spacing: -0.01em;
}
.alt-tv__line {
  position: relative;
  font-family: var(--a-mono);
  font-size: 0.48rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--a-gold);
}
.alt-tv__badge {
  position: absolute;
  top: 8px; left: 8px;
  font-family: var(--a-mono);
  font-size: 0.4rem;
  letter-spacing: 0.14em;
  color: rgba(242, 240, 236, 0.6);
  border: 1px solid rgba(242, 240, 236, 0.24);
  border-radius: 3px;
  padding: 2px 5px;
}
.alt-tv__prog { position: absolute; left: 0; right: 0; bottom: 0; height: 3px; background: rgba(255, 255, 255, 0.14); }
.alt-tv__prog i { display: block; height: 3px; width: 0%; background: var(--a-gold); }
.alt-tv__stand {
  display: block;
  width: 26%;
  height: 9px;
  margin: 0 auto;
  background: linear-gradient(180deg, #221C40, #100C22);
  border-radius: 0 0 5px 5px;
}
.alt-tv__stand::after {
  content: "";
  display: block;
  width: 190%;
  height: 4px;
  margin: 0 auto;
  transform: translateX(-24%);
  border-radius: 3px;
  background: #191330;
}
.alt-tv__glow {
  position: absolute;
  left: 50%; bottom: -18%;
  width: 120%; height: 60%;
  transform: translateX(-50%);
  background: radial-gradient(50% 50% at 50% 50%, rgba(110, 95, 168, 0.3) 0%, rgba(110, 95, 168, 0) 70%);
  pointer-events: none;
}

/* ═════════════════════════════════════════════════════════════════════
   SURFACE 04 · AUDIO PLAYER
   ═════════════════════════════════════════════════════════════════════ */
.alt-aud {
  width: min(100%, 360px);
  display: grid;
  gap: 0.9rem;
  padding: clamp(1rem, 2.4vw, 1.4rem);
  border-radius: 14px;
  border: 1px solid rgba(169, 160, 216, 0.24);
  background: linear-gradient(165deg, rgba(30, 24, 58, 0.9), rgba(10, 14, 28, 0.9));
  box-shadow: 0 30px 60px -34px rgba(0, 0, 0, 0.85);
}
.alt-aud__head { display: flex; align-items: center; gap: 0.75rem; }
.alt-aud__art {
  flex: none;
  width: 46px; height: 46px;
  border-radius: 8px;
  background: linear-gradient(145deg, var(--a-gold), #6E5FA8);
}
.alt-aud__meta { display: grid; gap: 3px; min-width: 0; }
.alt-aud__meta b { font-size: 0.82rem; color: #F6F4F0; font-weight: 400; }
.alt-aud__meta em {
  font-style: normal;
  font-family: var(--a-mono);
  font-size: 0.46rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(242, 240, 236, 0.42);
}
.alt-aud__wave { display: flex; align-items: center; gap: 3px; height: 54px; }
.alt-aud__wave i {
  flex: 1;
  min-width: 2px;
  border-radius: 2px;
  background: rgba(169, 160, 216, 0.35);
  transform-origin: center;
  transition: height 0.18s linear, background 0.4s var(--a-ease);
}
.alt-aud__wave i.is-past { background: var(--a-gold); }
.alt-aud__foot { display: flex; align-items: center; gap: 0.6rem; }
.alt-aud__t { font-family: var(--a-mono); font-size: 0.5rem; color: rgba(242, 240, 236, 0.45); font-variant-numeric: tabular-nums; }
.alt-aud__bar { flex: 1; height: 2px; border-radius: 2px; background: rgba(169, 160, 216, 0.2); overflow: hidden; }
.alt-aud__bar i { display: block; height: 2px; width: 0%; background: var(--a-gold); }

/* ═════════════════════════════════════════════════════════════════════
   SURFACE 05 · DIGITAL BILLBOARD
   ═════════════════════════════════════════════════════════════════════ */
.alt-boa { position: relative; width: min(100%, 400px); padding-bottom: 2.2rem; }
.alt-boa__screen {
  position: relative;
  aspect-ratio: 3 / 2;
  border-radius: 6px;
  border: 3px solid #191330;
  overflow: hidden;
  background: linear-gradient(160deg, #0E1B30, #070E1B);
  display: grid;
  place-items: center;
  box-shadow: 0 0 44px rgba(194, 160, 99, 0.18), 0 26px 50px -30px rgba(0, 0, 0, 0.9);
}
.alt-boa__creative {
  display: grid;
  gap: 5px;
  justify-items: center;
  text-align: center;
  padding: 0.6rem;
  transition: opacity 0.5s var(--a-ease), transform 0.5s var(--a-ease);
}
.alt-boa__creative.is-swap { opacity: 0; transform: translateY(-10px); }
.alt-boa__creative b { font-family: var(--a-display); font-size: clamp(0.95rem, 2.4vw, 1.35rem); color: #F6F4F0; }
.alt-boa__creative em {
  font-style: normal;
  font-family: var(--a-mono);
  font-size: 0.46rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--a-gold);
}
.alt-boa__post {
  display: block;
  width: 9px; height: 40px;
  margin: 0 auto;
  background: linear-gradient(180deg, #221C40, #100C22);
}
.alt-boa__street {
  display: flex;
  gap: 10px;
  justify-content: center;
  align-items: flex-end;
  height: 22px;
  opacity: 0.45;
}
.alt-boa__street i {
  display: block;
  width: 7px;
  border-radius: 3px 3px 0 0;
  background: rgba(169, 160, 216, 0.5);
  animation: alt-boa-walk 3.4s ease-in-out infinite;
}
.alt-boa__street i:nth-child(1) { height: 13px; animation-delay: -0.2s; }
.alt-boa__street i:nth-child(2) { height: 16px; animation-delay: -1.1s; }
.alt-boa__street i:nth-child(3) { height: 12px; animation-delay: -2.0s; }
.alt-boa__street i:nth-child(4) { height: 15px; animation-delay: -0.7s; }
.alt-boa__street i:nth-child(5) { height: 14px; animation-delay: -1.6s; }
@keyframes alt-boa-walk {
  0%, 100% { transform: translateX(-14px); opacity: 0.2; }
  50%      { transform: translateX(14px);  opacity: 0.9; }
}
.alt-boa__tag {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  text-align: center;
  font-family: var(--a-mono);
  font-size: 0.44rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(242, 240, 236, 0.34);
}

/* ═════════════════════════════════════════════════════════════════════
   SURFACE 07 · PUBLISHER PAGE
   ═════════════════════════════════════════════════════════════════════ */
.alt-pub {
  width: min(100%, 380px);
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(169, 160, 216, 0.24);
  background: #F2F0EC;
  box-shadow: 0 30px 60px -34px rgba(0, 0, 0, 0.85);
}
.alt-pub__chrome { display: flex; gap: 5px; padding: 8px 10px; background: #DFDCD6; }
.alt-pub__chrome i { width: 7px; height: 7px; border-radius: 50%; background: rgba(10, 29, 59, 0.2); }
.alt-pub__body { display: grid; gap: 9px; padding: 14px; }
.alt-pub__head { display: block; height: 12px; width: 72%; border-radius: 3px; background: rgba(10, 29, 59, 0.32); }
.alt-pub__text { display: grid; gap: 5px; }
.alt-pub__text i { display: block; height: 5px; border-radius: 3px; background: rgba(10, 29, 59, 0.13); }
.alt-pub__text i:nth-child(2) { width: 92%; }
.alt-pub__text i:nth-child(3) { width: 84%; }
.alt-pub__text i:nth-child(4) { width: 60%; }
.alt-pub__ad {
  display: grid;
  gap: 3px;
  justify-items: center;
  text-align: center;
  padding: 0.9rem 0.6rem;
  border-radius: 6px;
  background: linear-gradient(150deg, #0E1B30, #1E1840);
  border: 1px solid rgba(194, 160, 99, 0.4);
  transition: box-shadow 0.6s var(--a-ease);
}
.alt-pub__ad.is-lit { box-shadow: 0 0 0 3px rgba(194, 160, 99, 0.22); }
.alt-pub__ad b { font-family: var(--a-display); font-size: 0.92rem; color: #F6F4F0; }
.alt-pub__ad em {
  font-style: normal;
  font-family: var(--a-mono);
  font-size: 0.44rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--a-gold);
}

/* ═════════════════════════════════════════════════════════════════════
   SURFACE 08 · PRESS
   ═════════════════════════════════════════════════════════════════════ */
.alt-press { position: relative; width: min(100%, 340px); min-height: 210px; }
.alt-press__card {
  position: absolute;
  inset: 0 0 auto 0;
  display: grid;
  gap: 0.5rem;
  padding: clamp(0.9rem, 2.2vw, 1.3rem);
  border-radius: 10px;
  background: #F4F2EE;
  border: 1px solid rgba(10, 29, 59, 0.12);
  box-shadow: 0 24px 44px -30px rgba(0, 0, 0, 0.8);
  transition: transform 0.6s var(--a-ease);
}
.alt-press__card--b { transform: translate(10px, 16px) rotate(1.6deg); z-index: -1; opacity: 0.75; }
.alt-press__card--c { transform: translate(20px, 32px) rotate(3deg);  z-index: -2; opacity: 0.5; }
.alt-press__src {
  font-family: var(--a-mono);
  font-size: 0.44rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--a-gold-deep);
}
.alt-press__hl {
  font-family: var(--a-display);
  font-size: clamp(0.95rem, 2vw, 1.2rem);
  line-height: 1.2;
  color: var(--a-navy);
  font-weight: 400;
}
.alt-press__by { display: grid; gap: 4px; margin-top: 0.2rem; }
.alt-press__by i { display: block; height: 4px; border-radius: 2px; background: rgba(10, 29, 59, 0.14); }
.alt-press__by i:nth-child(2) { width: 70%; }

/* ═════════════════════════════════════════════════════════════════════
   SURFACE 09 · EMAIL + SMS
   ═════════════════════════════════════════════════════════════════════ */
.alt-crm { width: min(100%, 340px); display: grid; gap: 0.7rem; }
.alt-crm__mail {
  display: grid;
  gap: 0.45rem;
  padding: clamp(0.9rem, 2.2vw, 1.2rem);
  border-radius: 10px;
  background: #F4F2EE;
  border: 1px solid rgba(10, 29, 59, 0.12);
}
.alt-crm__from {
  font-family: var(--a-mono);
  font-size: 0.44rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--a-gold-deep);
}
.alt-crm__sub { font-family: var(--a-display); font-size: 0.95rem; line-height: 1.25; color: var(--a-navy); }
.alt-crm__body { display: grid; gap: 4px; }
.alt-crm__body i { display: block; height: 4px; border-radius: 2px; background: rgba(10, 29, 59, 0.13); }
.alt-crm__body i:nth-child(2) { width: 86%; }
.alt-crm__body i:nth-child(3) { width: 64%; }
.alt-crm__btn {
  justify-self: start;
  margin-top: 0.3rem;
  font-family: var(--a-mono);
  font-size: 0.46rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  background: var(--a-navy);
  color: #F4F2EE;
  padding: 0.5rem 0.9rem;
  border-radius: 100px;
}
.alt-crm__sms { display: grid; gap: 6px; justify-items: start; }
.alt-crm__bubble {
  max-width: 84%;
  font-size: 0.72rem;
  line-height: 1.45;
  padding: 0.6rem 0.8rem;
  border-radius: 14px 14px 14px 3px;
  background: rgba(169, 160, 216, 0.16);
  border: 1px solid rgba(169, 160, 216, 0.24);
  color: rgba(242, 240, 236, 0.85);
}
.alt-crm__bubble--in {
  justify-self: end;
  border-radius: 14px 14px 3px 14px;
  background: var(--a-gold);
  border-color: var(--a-gold);
  color: #0A1D3B;
  font-family: var(--a-mono);
  font-size: 0.56rem;
  letter-spacing: 0.1em;
}

/* ── the ask ──────────────────────────────────────────────────────── */
.alt-ch__out {
  display: grid;
  gap: 1rem;
  margin-top: clamp(0.5rem, 1.5vw, 1rem);
  padding: clamp(1.1rem, 3vw, 1.7rem);
  border: 1px solid rgba(194, 160, 99, 0.3);
  border-radius: 12px;
  background: linear-gradient(120deg, rgba(194, 160, 99, 0.12) 0%, rgba(194, 160, 99, 0) 60%), rgba(10, 29, 59, 0.5);
}
@media (min-width: 900px) {
  .alt-ch__out { grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 2rem; }
}
.alt-ch__out-line { font-size: var(--a-s-1); line-height: 1.5; color: rgba(242, 240, 236, 0.82); max-width: 58ch; }
.alt-ch__out-acts { display: flex; flex-wrap: wrap; align-items: center; gap: 0.8rem 1.3rem; }
.alt-ch__tel {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--a-mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(242, 240, 236, 0.5);
  transition: color 0.3s var(--a-ease);
}
.alt-ch__tel svg { width: 13px; height: 13px; }
.alt-ch__tel:hover { color: var(--a-gold); }


/* ═════════════════════════════════════════════════════════════════════
   PHONES — the same room, stacked

   Desktop is untouched. The only difference here is that the panel goes
   single column: the screen on top, its words underneath. The wall, the
   presenter, the floor, the light and the dust all stay exactly as they
   are on desktop — the phone was only ever missing them because a
   two-column panel could not fit, not because the room itself was the
   problem.
   ═════════════════════════════════════════════════════════════════════ */
@media (max-width: 780px) {
  /* room for a stacked panel */
  .alt-ch__stage {
    min-height: 600px;
    perspective: 1000px;              /* shorter throw suits a narrow frame */
    perspective-origin: 50% 34%;
  }

  .alt-ch__panel {
    grid-template-columns: 1fr;
    align-content: start;
    gap: 1rem;
    padding: 1.1rem 1.1rem 2.6rem;
    /* A full width of travel, so a neighbour clears the front screen
       instead of sitting across it. It still peeks in at the edge
       because of the rotation and the stage's overflow. */
    transform:
      translateX(calc(var(--d, 0) * 92%))
      translateZ(calc(var(--d, 0) * var(--d, 0) * -150px))
      rotateY(calc(var(--d, 0) * -34deg))
      scale(calc(1 - min(1, var(--d, 0) * var(--d, 0)) * 0.12));
  }

  /* THE COLLISION FIX.

     A phone panel is a tall single column, so a neighbour shifted only
     half a width still lands its surface and its text on top of the
     front one — which is why fragments of other channels were reading
     through the copy. Three things together:

       · the second ring is dropped entirely, not just dimmed;
       · the first ring is pushed a full width clear and scaled down;
       · nothing but the front panel's copy is ever painted.

     Blur is also swapped for dimming — blurring a complex subtree is the
     most expensive thing on this page for a mid-range phone GPU. */
  .alt-ch__panel.is-far {
    visibility: hidden !important;
    opacity: 0 !important;
  }
  .alt-ch__panel.is-near {
    filter: saturate(0.45) brightness(0.5);
    opacity: 0.2;
  }
  /* only the live screen shows words — the neighbours are scenery */
  .alt-ch__panel:not(.is-on) .alt-ch__copy {
    opacity: 0 !important;
    visibility: hidden;
  }

  .alt-room__guide { width: 34px; bottom: 0.4rem; }
  .alt-room__floor { height: 30%; }
  .alt-room__poster i { font-size: 1.5rem; }
  .alt-room__poster b { font-size: 0.44rem; letter-spacing: 0.16em; }

  /* the devices shrink so the screen half stays roughly square */
  .alt-fone { width: min(100%, 142px); }
  .alt-fone__screen { min-height: 196px; }
  .alt-fone--reel .alt-fone__screen--reel { min-height: 208px; }
  .alt-lap, .alt-tv, .alt-boa, .alt-pub { width: min(100%, 260px); }
  .alt-aud, .alt-press, .alt-crm { width: min(100%, 250px); }
  .alt-press { min-height: 158px; }
  .alt-ch__surface > * { animation-duration: 9s; }

  .alt-ch__h { font-size: 1.18rem; }
  .alt-ch__c { font-size: 0.84rem; }
  .alt-ch__list li { font-size: 0.78rem; }
  .alt-ch__out-acts .alt-btn { width: 100%; justify-content: center; }
}

/* Very small screens: hold the wall together rather than let the
   neighbours crowd the front screen out of the frame. */
@media (max-width: 420px) {
  .alt-ch__stage { min-height: 560px; }
  .alt-ch__panel {
    transform:
      translateX(calc(var(--d, 0) * 96%))
      translateZ(calc(var(--d, 0) * var(--d, 0) * -120px))
      rotateY(calc(var(--d, 0) * -30deg))
      scale(calc(1 - min(1, var(--d, 0) * var(--d, 0)) * 0.14));
  }
  .alt-fone { width: min(100%, 126px); }
  .alt-fone__screen { min-height: 176px; }
  .alt-room__guide { width: 30px; }
}

@media (prefers-reduced-motion: reduce) {
  .alt-ch__sweep,
  .alt-boa__street i,
  .alt-ch__surface > *,
  .alt-guide__fig,
  .alt-guide__cape,
  .alt-guide__arm,
  .alt-ch__auto i { animation: none !important; }
  .alt-room__dust { display: none; }
  .alt-ch__panel.is-near { display: none; }
  .alt-ch__panel,
  .alt-ch__copy > * { transition: none; }
  .alt-ch__panel { transform: none !important; filter: none !important; }
  .alt-ch__surface { transform: none !important; }
  .alt-ch__tab::before { display: none; }
}

/* =========================================================================
   CH.07 — OUTCOMES
   ========================================================================= */
.alt-out { display: block; }
.alt-outcome {
  position: sticky;
  top: calc(var(--a-header) + 5vh);
  margin-bottom: clamp(1.25rem, 5vh, 3rem);
  transform-origin: 50% 0%;
  border: 1px solid var(--a-line);
  border-radius: 8px;
  background: var(--a-white);
  padding: clamp(1.4rem, 5vw, 2.2rem);
  display: grid;
  gap: 1.1rem;
  overflow: hidden;
  will-change: transform;
  box-shadow: 0 40px 80px -60px rgba(10, 29, 59, 0.6);
}
.alt-outcome__head { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; }
.alt-outcome__tag {
  font-family: var(--a-mono);
  font-size: 0.58rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--a-ink-faint);
}
.alt-outcome__t { font-family: var(--a-display); font-size: var(--a-s-2); line-height: 1.1; }
.alt-outcome__c { color: var(--a-ink-dim); font-size: 0.95rem; margin-top: 0.6rem; }
.alt-outcome__viz { width: 100%; height: auto; }
.alt-outcome__viz .grid { stroke: var(--a-line); stroke-width: 1; }
.alt-outcome__viz .bar { fill: var(--a-lav); }
.alt-outcome__viz .bar--hot { fill: var(--a-gold); }
.alt-outcome__viz .line { fill: none; stroke: var(--a-gold-deep); stroke-width: 2; stroke-linecap: round; }
.alt-outcome__viz .ring { fill: none; stroke: var(--a-lav); stroke-width: 6; }
.alt-outcome__viz .ring--hot { stroke: var(--a-gold); }
.alt-outcome__viz .dot { fill: var(--a-gold-deep); }
.alt-outcome__viz text { font-family: var(--a-mono); font-size: 9px; letter-spacing: 1px; fill: var(--a-ink-faint); }

/* =========================================================================
   MARQUEE
   ========================================================================= */
.alt-marquee { overflow: hidden; border-block: 1px solid var(--a-line); padding-block: clamp(1rem, 4vw, 2rem); background: var(--a-white); }
.alt-marquee__track { display: flex; width: max-content; will-change: transform; }
.alt-marquee__i {
  display: inline-flex;
  align-items: center;
  gap: clamp(1.5rem, 5vw, 3.5rem);
  padding-right: clamp(1.5rem, 5vw, 3.5rem);
  font-family: var(--a-display);
  font-size: clamp(1.15rem, 4.5vw, 2.4rem);
  line-height: 1;
  white-space: nowrap;
  color: var(--a-ink-dim);
}
.alt-marquee__i em { font-style: italic; color: var(--a-gold-deep); }
.alt-marquee__d { width: 6px; height: 6px; border-radius: 50%; background: var(--a-gold); flex: none; }

/* =========================================================================
   CH.08 — ENGAGEMENTS
   ========================================================================= */
.alt-levels { display: grid; gap: clamp(0.9rem, 3vw, 1.4rem); }
@media (min-width: 760px) { .alt-levels { grid-template-columns: repeat(3, minmax(0, 1fr)); align-items: stretch; } }

.alt-level {
  position: relative;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--a-line);
  border-radius: 8px;
  background: var(--a-white);
  padding: clamp(1.35rem, 4.5vw, 2.2rem);
  overflow: hidden;
  transition: border-color 0.5s var(--a-ease), transform 0.5s var(--a-ease);
}
.alt-level:hover { border-color: rgba(169, 160, 216, 0.7); transform: translateY(-3px); }
.alt-level--mid { border-color: rgba(194, 160, 99, 0.5); }
.alt-level--mid:hover { border-color: rgba(194, 160, 99, 0.8); }
.alt-level__flag {
  position: absolute;
  top: 0; right: 0;
  font-family: var(--a-mono);
  font-size: 0.53rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  background: var(--a-gold);
  color: #FFFFFF;
  padding: 0.3rem 0.65rem;
  border-radius: 0 8px 0 4px;
}
.alt-level__glyph { width: 100%; height: 52px; margin-bottom: 1.2rem; color: var(--a-lav); }
.alt-level--mid .alt-level__glyph { color: var(--a-gold); }
.alt-level--top .alt-level__glyph { color: var(--a-gold-deep); }
.alt-level__step {
  align-self: flex-start;
  font-family: var(--a-mono);
  font-size: 0.55rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--a-gold-deep);
  border: 1px solid var(--a-line);
  border-radius: 100px;
  padding: 0.28rem 0.65rem;
  margin-bottom: 0.85rem;
}
.alt-level__n { font-family: var(--a-display); font-size: var(--a-s-2); line-height: 1; margin-bottom: 0.45rem; }
.alt-level__for {
  font-family: var(--a-mono);
  font-size: 0.6rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--a-ink-faint);
  padding-bottom: 1.2rem;
  border-bottom: 1px solid var(--a-line);
  margin-bottom: 1.3rem;
}
.alt-level__list { display: grid; gap: 0.65rem; margin-bottom: 1.75rem; flex: 1 1 auto; }

.alt-terms {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(0.9rem, 3vw, 1.25rem);
  margin-top: clamp(1.5rem, 5vw, 2.5rem);
  padding-top: clamp(1.5rem, 5vw, 2.5rem);
  border-top: 1px solid var(--a-line);
}
@media (min-width: 560px)  { .alt-terms { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1000px) { .alt-terms { grid-template-columns: repeat(5, minmax(0, 1fr)); } }
.alt-term { display: grid; gap: 0.35rem; }
.alt-term__k { font-family: var(--a-mono); font-size: 0.57rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--a-gold-deep); }
.alt-term__v { font-size: 0.88rem; color: var(--a-ink-dim); }

/* =========================================================================
   CH.09 — FAQ
   ========================================================================= */
.alt-faq { display: grid; gap: clamp(1.5rem, 5vw, 4rem); }
@media (min-width: 980px) {
  .alt-faq { grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); align-items: start; }
  .alt-faq__aside { position: sticky; top: calc(var(--a-header) + 8vh); }
}
.alt-qs { border-top: 1px solid var(--a-line); }
.alt-q { position: relative; border-bottom: 1px solid var(--a-line); }
.alt-q__wipe {
  position: absolute;
  left: 0; bottom: -1px;
  width: 100%; height: 1px;
  background: var(--a-gold);
  transform: scaleX(0);
  transform-origin: left center;
  pointer-events: none;
}
.alt-q__h {
  width: 100%;
  display: grid;
  grid-template-columns: 2rem 1fr 16px;
  gap: 0.7rem;
  align-items: center;
  padding: clamp(1rem, 4vw, 1.5rem) 0;
  text-align: left;
}
@media (min-width: 640px) { .alt-q__h { grid-template-columns: 3rem 1fr 18px; gap: 1rem; } }
.alt-q__i { font-family: var(--a-mono); font-size: 0.6rem; color: var(--a-ink-faint); }
.alt-q__t { font-family: var(--a-display); font-size: var(--a-s-1); line-height: 1.25; transition: color 0.35s var(--a-ease); }
.alt-q__h[aria-expanded="true"] .alt-q__t { color: var(--a-gold-deep); }
.alt-q__s { position: relative; width: 14px; height: 14px; justify-self: end; }
.alt-q__s span {
  position: absolute;
  top: 50%; left: 0;
  width: 14px; height: 1px;
  background: var(--a-ink-dim);
  transition: transform 0.4s var(--a-ease), background 0.4s var(--a-ease);
}
.alt-q__s span:nth-child(2) { transform: rotate(90deg); }
.alt-q__h[aria-expanded="true"] .alt-q__s span { background: var(--a-gold); }
.alt-q__h[aria-expanded="true"] .alt-q__s span:nth-child(2) { transform: rotate(0deg); }
.alt-q__p { overflow: hidden; }
.alt-q__p p { padding: 0 0 clamp(1rem, 4vw, 1.6rem) 2.7rem; color: var(--a-ink-dim); max-width: 62ch; }
@media (min-width: 640px) { .alt-q__p p { padding-left: 4rem; } }

/* =========================================================================
   CH.10 — THE CALL FORM
   ========================================================================= */
.alt-contact { display: grid; gap: clamp(2rem, 7vw, 4rem); }
@media (min-width: 980px) { .alt-contact { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

.alt-form {
  display: grid;
  gap: 1rem;
  border: 1px solid var(--a-line);
  border-radius: 10px;
  background: rgba(10, 29, 59, 0.45);
  padding: clamp(1.25rem, 5vw, 2.4rem);
}
.alt-field { display: grid; gap: 0.45rem; }
.alt-field2 { display: grid; gap: 1rem; }
@media (min-width: 560px) { .alt-field2 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.alt-field label {
  font-family: var(--a-mono);
  font-size: 0.58rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--a-ink-faint);
}
.alt-input {
  width: 100%;
  font-size: 16px;                      /* stops iOS zooming on focus */
  font-family: var(--a-body);
  background: rgba(7, 14, 27, 0.55);
  border: 1px solid var(--a-line);
  border-radius: 6px;
  color: var(--a-ink);
  padding: 0.85rem 0.95rem;
  transition: border-color 0.35s var(--a-ease), background 0.35s var(--a-ease);
  -webkit-appearance: none;
  appearance: none;
}
.alt-input::placeholder { color: rgba(242, 240, 236, 0.28); }
.alt-input:focus { border-color: var(--a-lav); background: rgba(7, 14, 27, 0.8); outline: none; }
select.alt-input {
  background-image: linear-gradient(45deg, transparent 50%, var(--a-lav) 50%), linear-gradient(135deg, var(--a-lav) 50%, transparent 50%);
  background-position: calc(100% - 19px) center, calc(100% - 13px) center;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
  padding-right: 2.5rem;
}
select.alt-input option { background: #0B1729; color: #F2F0EC; }
textarea.alt-input { resize: vertical; min-height: 100px; }
.alt-form__foot { display: grid; gap: 1rem; margin-top: 0.35rem; }
@media (min-width: 560px) { .alt-form__foot { grid-template-columns: 1fr auto; align-items: center; } }
.alt-hp { position: absolute; left: -9999px; opacity: 0; }
.alt-notice {
  border: 1px solid rgba(194, 160, 99, 0.5);
  background: rgba(194, 160, 99, 0.1);
  border-radius: 6px;
  padding: 0.85rem 1rem;
  font-family: var(--a-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  color: var(--a-gold);
}
.alt-notice--bad { border-color: rgba(169, 160, 216, 0.5); background: rgba(169, 160, 216, 0.1); color: var(--a-lav); }

/* =========================================================================
   CH.11 — SUMMIT
   ========================================================================= */
.alt-summit {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  text-align: center;
  padding-block: clamp(4rem, 13vw, 9rem);
  background:
    radial-gradient(110% 80% at 15% 0%, rgba(169, 160, 216, 0.4) 0%, rgba(169, 160, 216, 0) 58%),
    radial-gradient(90% 70% at 92% 100%, rgba(194, 160, 99, 0.2) 0%, rgba(194, 160, 99, 0) 62%),
    linear-gradient(180deg, #FBFAF6 0%, #F2F0F8 55%, #FBFAF6 100%);
}
.alt-summit__sky { position: absolute; inset: auto 0 0 0; z-index: -1; width: 100%; }
.alt-summit__inner { position: relative; z-index: 1; }
.alt-summit__mark {
  display: inline-block;
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(10, 29, 59, 0.55);
  border: 1px solid rgba(10, 29, 59, 0.18);
  border-radius: 100px;
  padding: 0.4rem 0.9rem;
  margin-bottom: clamp(1.25rem, 4vw, 2rem);
}
.alt-summit__t {
  font-family: var(--a-display);
  font-optical-sizing: none;
  font-variation-settings: "opsz" 32;
  font-size: var(--a-s-4);
  line-height: 0.98;
  letter-spacing: -0.028em;
  color: var(--a-navy);
  margin-bottom: 1.15rem;
}
.alt-summit__t em { font-style: italic; color: var(--a-gold-deep); }
.alt-summit__l { color: rgba(10, 29, 59, 0.7); max-width: 48ch; margin-inline: auto; font-size: var(--a-s-1); font-weight: 300; }
.alt-summit .alt-actions { justify-content: center; }

/* =========================================================================
   FOOTER
   ========================================================================= */
.alt-footer {
  background: var(--a-navy-deep);
  color: rgba(242, 240, 236, 0.75);
  padding-block: clamp(3rem, 8vw, 5.5rem) clamp(1.5rem, 4vw, 2.5rem);
}
.alt-footer__grid {
  display: grid;
  gap: clamp(2rem, 6vw, 4rem);
  padding-bottom: clamp(2rem, 6vw, 3.5rem);
  border-bottom: 1px solid rgba(169, 160, 216, 0.16);
}
@media (min-width: 900px) {
  .alt-footer__grid { grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.9fr) minmax(0, 0.9fr); }
}
.alt-footer__brand { display: grid; gap: 0.9rem; justify-items: start; }
.alt-footer__logo { height: clamp(80px, 14vw, 140px); }
.alt-footer__by {
  font-family: var(--a-mono);
  font-size: 0.58rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--a-gold);
}
.alt-footer__nav { display: grid; gap: 0.7rem; align-content: start; }
.alt-footer__nav a {
  font-family: var(--a-mono);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(242, 240, 236, 0.6);
  transition: color 0.35s var(--a-ease);
  width: fit-content;
}
.alt-footer__nav a:hover { color: var(--a-gold); }
.alt-footer__contact { display: grid; gap: 0.6rem; align-content: start; font-size: 0.92rem; }
.alt-footer__contact a { color: var(--a-gold); }
.alt-footer__base {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.6rem 1.5rem;
  padding-top: clamp(1.25rem, 3vw, 2rem);
  font-family: var(--a-mono);
  font-size: 0.56rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(242, 240, 236, 0.4);
}

/* =========================================================================
   REDUCED MOTION
   ========================================================================= */
@media (prefers-reduced-motion: reduce) {
  .altitude-page *,
  .altitude-page *::before,
  .altitude-page *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .altitude-page .alt-preloader { display: none !important; }
  .altitude-page .alt-hud { display: none !important; }
  .altitude-page .alt-peek { display: none !important; }
  .altitude-page .alt-grain { display: none !important; }
  .altitude-page .alt-wi { transform: none !important; }
  .altitude-page .alt-outcome { position: static; transform: none !important; opacity: 1 !important; }
  .altitude-page .alt-hero__canvas { display: none; }
  .altitude-page .alt-bar { transform: none !important; }

  .altitude-page .alt-hero__glow {
    background:
      radial-gradient(circle, rgba(194, 160, 99, 0.14) 0%, rgba(169, 160, 216, 0.1) 38%, rgba(169, 160, 216, 0) 68%),
      url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 200'%3E%3Cpath d='M104 34 C104 62 96 82 70 100 C88 96 100 88 112 74 L104 34 Z' fill='%23C2A063'/%3E%3Cpath d='M100 52 L104 52 L150 158 L128 158 L101 84 L74 158 L54 158 Z' fill='%23F2F0EC'/%3E%3C/svg%3E") center / 46% no-repeat;
  }
}