/* =====================================================================
   CHAVANS — MirAI Landing Page
   Design canvas: 1600 x 900 per section (16:9), full-bleed
   Fonts: JetBrains Mono + Helvetica Neue
   Palette: strict black & white editorial
===================================================================== */

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; scroll-behavior: smooth; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; background: none; border: 0; cursor: pointer; color: inherit; }

body {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: #111;
  background: #fff;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* ---------- Design tokens ---------- */
:root {
  --gutter: 4.6875vw;
  --ink: #111111;
  --ink-dim: #b8b8b8;
  --ink-mid: #6f6f6f;
  --black: #000;
  --white: #fff;
  --bg-story: #ffffff;
  --bg-news: #e0e0e0;
  --bg-persp: #f0f0f0;
  --bg-solutions: #171717;
  --bg-stories: #d8d8d8;
  --bg-partners: #ffffff;
  --bg-cta: #0a0a0a;
  --bg-footer: #000;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

/* ---------- Font helpers ---------- */
.mono, .pill, .chip, .tag, .know-more, .view-link, .cta-btn, .mono-label, .mono-body, .foot-col h4 {
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-weight: 500;
  letter-spacing: 0.02em;
}

/* ---------- Section base ---------- */
.s {
  position: relative;
  width: 100%;
  min-height: 100vh;
  padding: 0 var(--gutter);
  overflow: hidden;
}
@media (min-width: 900px) {
  .s { min-height: 56.25vw; }
}

/* ---------- Small tag ("+ SOMETHING") ---------- */
.tag {
  position: absolute;
  top: 6.5%;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  z-index: 2;
}
.tag .plus { font-weight: 500; font-size: 1.15em; line-height: 1; }
.tag--top-left  { left: var(--gutter); }
.tag--top-center { left: 50%; transform: translateX(-50%); }
.tag--onDark { color: #cfcfcf; }
.tag--light { color: #cfcfcf; }

/* ================================================================
   SCROLL-TRIGGERED ANIMATIONS (billups.com style)
================================================================ */

/* Initial hidden states */
[data-animate] {
  opacity: 0;
  transition-property: opacity, transform;
  transition-duration: 0.9s;
  transition-timing-function: var(--ease-out);
}
[data-delay="100"] { transition-delay: 0.1s; }
[data-delay="200"] { transition-delay: 0.2s; }
[data-delay="300"] { transition-delay: 0.3s; }
[data-delay="400"] { transition-delay: 0.4s; }

[data-animate="fade-down"]   { transform: translateY(-24px); }
[data-animate="fade-up"]     { transform: translateY(0px); opacity: 0; }
[data-animate="slide-up"]    { transform: translateY(48px); }
[data-animate="slide-right"] { transform: translateX(-40px); }
[data-animate="fade-in"]     { transform: none; }

/* Revealed state */
[data-animate].is-visible {
  opacity: 1;
  transform: translateY(0) translateX(0);
}

/* ================================================================
   SECTION 1 — HERO
================================================================ */
.s-hero {
  background: #000;
  color: #fff;
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
@media (min-width: 900px) { .s-hero { min-height: 56.25vw; } }

/* Background video — show at full opacity, overlays handle darkening */
.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  opacity: 1;
}

/* Very light tint — just enough to ensure text legibility, video shines through */
.hero-bg {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 50% 60%, rgba(10,10,10,0.25) 0%, rgba(0,0,0,0.38) 60%, rgba(0,0,0,0.55) 100%);
  z-index: 1;
}
.hero-shade {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,.28) 0%, rgba(0,0,0,.04) 45%, rgba(0,0,0,.35) 100%);
  z-index: 1;
}

/* Nav */
.nav {
  position: relative;
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 2.6vw var(--gutter);
  flex-shrink: 0;
}
.nav .logo img {
  width: 8.75vw;
  min-width: 110px;
  max-width: 160px;
  height: auto;
}
.nav-pills {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex-wrap: nowrap;
}
.pill {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  color: #f5f5f5;
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.06);
  padding: 0.55rem 0.85rem;
  border-radius: 999px;
  white-space: nowrap;
  transition: background .2s, border-color .2s;
}
.pill:hover { background: rgba(255,255,255,0.14); }
.pill--dark {
  background: rgba(20,20,20,0.85);
  border-color: rgba(255,255,255,0.10);
}
.search {
  color: #fff;
  margin-left: 0.5rem;
  width: 22px; height: 22px;
  display: inline-flex; align-items: center; justify-content: center;
}
.search svg { width: 20px; height: 20px; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; width: 28px; height: 22px; }
.nav-toggle span { display: block; height: 2px; background: #fff; border-radius: 1px; }

/* Hero headline */
.hero-headline {
  position: absolute;
  z-index: 3;
  /* Top-right: just below the nav bar */
  top: 10vw;
  right: var(--gutter);
  left: 44%;
  text-align: right;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}
.hero-headline h1 {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-weight: 500;
  /* Large enough to fill the right ~55% in exactly 2 lines */
  font-size: 5.0vw;
  line-height: 1.0;
  letter-spacing: -0.02em;
  margin: 0;
  color: #fff;
  /* Hard-wrap at 2 lines — no orphan words */
  max-width: 16ch;
}
.know-more {
  display: inline-flex; align-items: center; justify-content: center;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  color: #111;
  background: #fff;
  border-radius: 999px;
  padding: 0.6rem 1rem;
  margin-top: 1.2vw;
  font-weight: 700;
  transition: background 0.2s, color 0.2s, transform 0.2s;
}
.know-more:hover {
  background: #f0f0f0;
  transform: scale(1.03);
}
.know-more--light { background: #d9d9d9; color: #111; }

/* ----------------------------------------------------------------
   HERO NOTCH — billups-style functional card, flush at bottom,
   DEAD CENTRE. Thick white top border divides hero from card.
   thumbnail + label + title + arrow link.
---------------------------------------------------------------- */
.hero-notch {
  /* Force dead-centre: use left+right auto margin trick on absolute */
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  margin-left: auto;
  margin-right: auto;
  /* Fixed width — auto L/R margins centre it within the positioned parent */
  width: min(560px, 62vw);
  z-index: 4;
  border-radius: 20px 20px 0 0;
  background: rgba(6,6,6,0.96);
  /* THICK WHITE top border — billups.com style divider */
  /* Thick, uniform white border on top + left + right — billups.com style */
  border-top: 9px solid #fff;
  border-left: 9px solid #fff;
  border-right: 9px solid #fff;
  border-bottom: none;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  padding: 0;
  overflow: hidden;
  box-shadow: 0 -24px 64px rgba(0,0,0,0.55);
}

/* Inner layout: two columns — thumbnail left, content right */
.hero-notch-inner {
  display: flex;
  align-items: stretch;
  gap: 0;
  height: 100%;
}

/* Thumbnail area */
.hero-notch-thumb {
  flex: 0 0 110px;
  overflow: hidden;
  position: relative;
}
.hero-notch-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  min-height: 110px;
  filter: brightness(0.85);
}

/* Text content area */
.hero-notch-content {
  flex: 1;
  padding: 1.25rem 1.5rem 1.25rem 1.4rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 0.5rem;
  /* Subtle left divider */
  border-left: 1px solid rgba(255,255,255,0.07);
}

/* Label chip at the top */
.hero-notch-label {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  color: rgba(255,255,255,0.45);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.hero-notch-label::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  background: rgba(255,255,255,0.3);
  border-radius: 50%;
}

/* Main title */
.hero-notch-title {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.4;
  color: rgba(255,255,255,0.92);
  margin: 0;
  flex: 1;
}

/* Bottom row: sub-copy + arrow link */
.hero-notch-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.hero-notch-sub {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.6rem;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.35);
  white-space: nowrap;
}
.hero-notch-arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.7);
  font-size: 0.85rem;
  flex-shrink: 0;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
  text-decoration: none;
}
.hero-notch-arrow:hover {
  border-color: rgba(255,255,255,0.4);
  color: #fff;
  background: rgba(255,255,255,0.07);
}

/* ================================================================
   SECTION 2 — OUR STORY
================================================================ */
.s-story {
  background: var(--bg-story);
  color: var(--ink);
  padding-top: 8.5vw;
}
.story-headline {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-weight: 500;
  font-size: 3vw;
  line-height: 1.15;
  letter-spacing: -0.005em;
  margin: 0;
  max-width: 62%;
  margin-left: auto;
  color: #2b2b2b;
}
.story-cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 26%));
  gap: 2.4vw;
  margin-top: 4.5vw;
  margin-left: 44%;
}
.mono-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  color: var(--ink);
  display: flex; align-items: center; gap: 0.4rem;
  margin-bottom: 1rem;
}
.arrow-down-right { display: inline-block; font-size: 1rem; transform: translateY(1px); }
.mono-body {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.8125rem;
  line-height: 1.65;
  letter-spacing: 0.04em;
  color: #2a2a2a;
  margin: 0;
}

/* ================================================================
   SECTION 3 — WHAT'S NEW
================================================================ */
.s-news {
  background: var(--bg-news);
  color: var(--ink);
  padding-top: 7.5vw;
}
.news-headline {
  position: absolute;
  right: var(--gutter);
  top: 5.8%;
  margin: 0;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-weight: 500;
  font-size: 4.2vw;
  letter-spacing: -0.01em;
  color: #0b0b0b;
}
.news-grid {
  margin-top: 9vw;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}
.news-card {
  position: relative;
  padding: 2vw 2.4vw 3vw 2.4vw;
  border-right: 1px solid #9c9c9c;
  min-height: 22vw;
  transition: background 0.3s;
}
.news-card:hover { background: rgba(0,0,0,0.04); }
.news-card:last-child { border-right: none; }
.news-card:first-child { border-left: 1px solid #9c9c9c; }
.chip {
  display: inline-block;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  background: #b6b6b6;
  color: #1a1a1a;
  padding: 0.35rem 0.7rem;
  border-radius: 4px;
  margin-bottom: 1.4rem;
}
.news-card h3 {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-weight: 500;
  font-size: 1.5vw;
  line-height: 1.2;
  color: #0e0e0e;
  margin: 0 0 2vw;
}
.news-badge {
  position: absolute;
  right: 2vw;
  bottom: 5vw;
  width: 4vw;
  height: auto;
}
.news-badge--gptw { width: 3.6vw; }
.view-link {
  position: absolute;
  left: 2.4vw;
  bottom: 2vw;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  color: #0b0b0b;
  display: inline-flex; align-items: center; gap: 0.5rem;
  transition: gap 0.2s;
}
.view-link:hover { gap: 0.85rem; }
.view-link.arrow-only { letter-spacing: 0; }
.arrow-right { display: inline-block; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; }

/* ================================================================
   SECTION 4 — HOW WE THINK
================================================================ */
.s-perspectives {
  background: var(--bg-persp);
  color: var(--ink);
  padding-top: 7.5vw;
}
.perspectives-headline {
  position: absolute;
  right: var(--gutter);
  top: 8%;
  margin: 0;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-weight: 500;
  font-size: 4vw;
  color: #0b0b0b;
  letter-spacing: -0.01em;
}
.perspectives-list {
  position: relative;
  margin-top: 15vw;
  margin-left: 50%;
  max-width: 46%;
  padding-left: 2vw;
}
.p-rail {
  position: absolute;
  right: 0; top: 0.5em; bottom: 0.5em;
  width: 1px; background: #9a9a9a;
}
.p-rail::before, .p-rail::after {
  content: "";
  position: absolute;
  right: 0; width: 10px; height: 1px; background: #9a9a9a;
}
.p-rail::before { top: 0; }
.p-rail::after  { bottom: 0; }
.p-item {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-weight: 400;
  font-size: 2vw;
  line-height: 1.15;
  margin: 0 0 2vw;
  color: #0b0b0b;
  cursor: pointer;
  transition: color 0.3s;
}
.p-item--dim { color: #c1c1c1; }
.p-item--dim:hover { color: #888; }

/* ================================================================
   SECTION 5 — CHAVANS ORIGINALS (pinch-to-zoom)
================================================================ */
.s-originals {
  background: #fff;
  color: var(--ink);
  padding-top: 5.5vw;
  text-align: center;
  /* Extra bottom padding to accommodate the sticky zoom phase */
  padding-bottom: 4vw;
}
.originals-headline {
  margin: 4vw 0 1.6vw;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-weight: 500;
  font-size: 3.6vw;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: #0b0b0b;
}
.originals-headline .dim { color: #bfbfbf; }
.originals-caption {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 0.9375rem;
  line-height: 1.55;
  color: #1a1a1a;
  max-width: 46%;
  margin: 0 auto;
}

/* Pinch-to-zoom video container */
.video-scroll-container {
  position: relative;
  margin: 3vw auto 0;
  width: 100%;
  max-width: 1200px;
  /* The video starts small, grows as user scrolls */
}
.video-zoom-wrapper {
  position: relative;
  width: min(920px, 60vw);
  margin: 0 auto;
  aspect-ratio: 16/9;
  border-radius: 18px;
  overflow: hidden;
  background: #000;
  transform-origin: center top;
  /* JS drives the scale + border-radius */
  will-change: transform, border-radius;
  transition: box-shadow 0.4s;
  box-shadow: 0 8px 48px rgba(0,0,0,0.18);
}
.video-zoom-wrapper.is-expanded {
  box-shadow: 0 0 0 rgba(0,0,0,0);
}
.originals-video {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}
.play-btn {
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  width: 64px; height: 64px;
  border-radius: 999px;
  background: rgba(255,255,255,0.95);
  display: inline-flex; align-items: center; justify-content: center;
  color: #000;
  box-shadow: 0 4px 24px rgba(0,0,0,.35);
  transition: transform 0.25s var(--ease-out), background 0.2s;
  z-index: 3;
}
.play-btn:hover {
  transform: translate(-50%, -50%) scale(1.1);
  background: #fff;
}
.play-btn.hidden { opacity: 0; pointer-events: none; }
.play-btn svg { width: 28px; height: 28px; margin-left: 3px; }

/* ================================================================
   SECTION 6 — SOLUTIONS
================================================================ */
.s-solutions {
  background: #171717;
  color: #fff;
  padding-top: 5.5vw;
  text-align: center;
}
.s-solutions .tag.tag--top-center { color: #b8b8b8; }
.solutions-headline {
  margin: 3vw 0 3vw;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-weight: 500;
  font-size: 4vw;
  line-height: 1.05;
  color: #fff;
  letter-spacing: -0.01em;
}
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.6vw;
  margin-top: 2vw;
  text-align: left;
}

/* Sol card hover lift */
.sol-card {
  transition: transform 0.35s var(--ease-out);
}
.sol-card:hover { transform: translateY(-6px); }

/* ----------------------------------------------------------------
   SOLUTION TILES
   Each PNG has its own solid baked-in background with rounded corners.
   Fix: stretch the image to 100×100% so the PNG fills the container
   edge-to-edge — overflow:hidden clips the PNG's own rounded corners,
   leaving ONE seamless flat tile. No double-tile artifact.
   CSS bg matches each PNG's baked colour as a pixel-perfect seam.
---------------------------------------------------------------- */
.sol-tile {
  position: relative;
  aspect-ratio: 1/1;
  border-radius: 22px;
  /* tile_plus.png baked bg ≈ #121212 */
  background: #121212;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
/* tile_ibeam.png baked bg ≈ #363636 */
.sol-tile--gray      { background: #363636; }
/* tile_tray.png baked bg ≈ #050505 */
.sol-tile--gray-dark { background: #050505; }
/* tile_gray_oval.png baked bg ≈ #7F7F7F */
.sol-tile--gray-light{ background: #7F7F7F; }

/* Stretch image to FILL the tile completely.
   The PNG's own rounded corners are clipped by overflow:hidden on
   the parent — result is one single seamless flat-colour tile. */
.sol-tile img {
  width: 100%;
  height: 100%;
  max-width: none;
  max-height: none;
  object-fit: cover;
  object-position: center;
  display: block;
}

/* Solution copy: label on its own line, dim description below */
.sol-copy {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 0.8125rem;
  line-height: 1.5;
  color: #fff;
  margin: 1.2vw 0 0;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.sol-copy b {
  font-weight: 700;
  display: block;
  color: #fff;
}
.sol-copy .dim {
  color: #aeaeae;
  font-weight: 400;
  display: block;
}

/* ================================================================
   SECTION 7 — CLIENT STORIES
================================================================ */
.s-stories {
  background: var(--bg-stories);
  color: var(--ink);
  padding-top: 7.5vw;
}
.stories-headline {
  position: absolute;
  right: var(--gutter);
  top: 7%;
  margin: 0;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-weight: 500;
  font-size: 4vw;
  line-height: 1.05;
  color: #0b0b0b;
  letter-spacing: -0.01em;
  text-align: left;
}
.stories-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 20%));
  gap: 2vw;
  margin-top: 8vw;
  margin-left: 42%;
}
.story-card {
  position: relative;
  padding: 1.4vw 1.8vw 4.5vw 1.8vw;
  min-height: 20vw;
  transition: transform 0.3s var(--ease-out);
}
.story-card:hover { transform: translateX(6px); }
.story-card h3 {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-weight: 500;
  font-size: 1.5vw;
  line-height: 1.2;
  margin: 0;
  color: #101010;
}
.story-card .dim { color: #a5a5a5; }
.bracket-l {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 14px;
  border-left: 1px solid #7a7a7a;
  border-top: 1px solid #7a7a7a;
  border-bottom: 1px solid #7a7a7a;
  border-right: none;
  pointer-events: none;
  transition: border-color 0.3s;
}
.story-card:hover .bracket-l { border-color: #333; }
.story-card--active .bracket-l { border-color: #111; }
.story-card .view-link {
  position: absolute;
  bottom: 1.4vw;
  left: 1.8vw;
  transition: gap 0.2s;
}
.story-card .view-link:hover { gap: 0.85rem; }

/* ================================================================
   SECTION 8 — PARTNERSHIPS
================================================================ */
.s-partners {
  background: #fff;
  color: var(--ink);
  padding-top: 6vw;
  padding-left: 0;
  padding-right: 0;
  text-align: center;
}
.partners-headline {
  padding: 0 var(--gutter);
  margin: 2.4vw 0 4vw;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-weight: 500;
  font-size: 4vw;
  line-height: 1.05;
  color: #0b0b0b;
  letter-spacing: -0.01em;
}
.partners-marquee {
  width: 100%;
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent 0, #000 6%, #000 94%, transparent 100%);
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 6%, #000 94%, transparent 100%);
}
.partners-track {
  display: flex;
  width: max-content;
  animation: partners-scroll 42s linear infinite;
}
.partners-track:hover { animation-play-state: paused; }
.partners-group {
  display: flex;
  align-items: center;
  gap: 4vw;
  padding: 0 2vw;
  flex: 0 0 auto;
}
.partners-group img {
  height: 2.4vw;
  min-height: 24px;
  max-height: 44px;
  width: auto;
  object-fit: contain;
  /* Use mix-blend-mode:multiply so dark JPEGs (e.g. CrowdStrike) blend
     correctly on white background instead of showing as solid boxes */
  filter: grayscale(1);
  mix-blend-mode: multiply;
  opacity: 0.75;
  flex: 0 0 auto;
  transition: opacity 0.3s, filter 0.3s;
}
.partners-group img:hover { opacity: 1; filter: grayscale(0); mix-blend-mode: normal; }
@keyframes partners-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .partners-track { animation: none; }
}
.s-partners .know-more {
  display: inline-flex;
  margin-top: 3vw;
  background: #d9d9d9;
  color: #111;
}

/* ================================================================
   SECTION 9 — CONVERSATIONS
================================================================ */
.s-conversations {
  position: relative;
  background: #000;
  color: #fff;
  padding-top: 5vw;
  min-height: 46vw;
}
.conv-bg {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  z-index: 0;
  transition: transform 0.6s var(--ease-out);
}
.s-conversations:hover .conv-bg { transform: scale(1.03); }
.conv-shade {
  position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(0,0,0,.55) 0%, rgba(0,0,0,.35) 45%, rgba(0,0,0,.55) 100%);
  z-index: 1;
}
.s-conversations .tag { z-index: 2; }
.conv-copy {
  position: relative;
  z-index: 2;
  margin-left: 45%;
  padding: 3vw var(--gutter) 0 0;
  text-align: right;
}
.conv-copy p {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 1.1vw;
  line-height: 1.45;
  color: #fff;
  margin: 0 0 1.6vw;
}
.s-conversations .know-more { background: #fff; color: #111; }

/* ================================================================
   SECTION 10 — CTA
================================================================ */
.s-cta {
  background: var(--bg-cta);
  color: #fff;
  min-height: 30vw;
  padding: 6vw var(--gutter) 4vw;
  text-align: center;
}
.cta-headline {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-weight: 500;
  font-size: 3.5vw;
  line-height: 1.05;
  margin: 0 0 1.2vw;
  letter-spacing: -0.01em;
}
.cta-sub {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 1rem;
  color: #d5d5d5;
  margin: 0 0 3vw;
}
.cta-buttons {
  display: inline-flex;
  gap: 1.2vw;
  flex-wrap: wrap;
  justify-content: center;
}
.cta-btn {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  padding: 1.15rem 1.6rem;
  border-radius: 10px;
  display: inline-flex; align-items: center; gap: 1.5rem;
  min-width: 20vw;
  justify-content: space-between;
  transition: transform 0.25s var(--ease-out), box-shadow 0.25s;
}
.cta-btn:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(0,0,0,0.3); }
.cta-btn--dark  { background: #2b2b2b; color: #fff; }
.cta-btn--light { background: #f5f2ed; color: #111; }
.cta-btn .arrow-right { font-size: 1.05rem; transition: transform 0.2s; }
.cta-btn:hover .arrow-right { transform: translateX(4px); }

/* ================================================================
   FOOTER
================================================================ */
.site-footer {
  background: var(--bg-footer);
  color: #cfcfcf;
  padding: 4vw var(--gutter) 2.4vw;
}
.foot-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2vw;
}
.foot-col h4 {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: #fff;
  margin: 0 0 1.4rem;
  font-weight: 500;
}
.foot-col ul { list-style: none; padding: 0; margin: 0; }
.foot-col li { margin-bottom: 0.55rem; }
.foot-col a {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 0.9375rem;
  color: #b6b6b6;
  transition: color 0.2s, padding-left 0.2s;
}
.foot-col a:hover { color: #fff; padding-left: 4px; }
.copyright {
  margin-top: 3vw;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 0.875rem;
  color: #b6b6b6;
}

/* ================================================================
   LINE REVEAL — billups-style horizontal rule animate in
================================================================ */
.line-reveal {
  width: 100%;
  height: 1px;
  background: #ddd;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 1.1s var(--ease-out);
}
.line-reveal.is-visible { transform: scaleX(1); }

/* ================================================================
   COUNTER / NUMBER ANIMATE (for future use)
================================================================ */
.count-up { font-variant-numeric: tabular-nums; }

/* ================================================================
   RESPONSIVE — mobile
================================================================ */
@media (max-width: 900px) {
  :root { --gutter: 5vw; }
  .s { min-height: unset; padding-top: 18vw; padding-bottom: 14vw; }

  /* Nav */
  .nav { padding: 5vw var(--gutter); gap: 0.75rem; }
  .nav .logo img { width: 110px; }
  .nav-pills { display: none; }
  .search { display: none; }
  .nav-toggle { display: inline-flex; margin-left: auto; }

  /* Hero */
  .s-hero { min-height: 100vh; }
  .hero-headline {
    top: 18vw;
    bottom: auto;
    left: var(--gutter);
    right: var(--gutter);
    text-align: right;
    align-items: flex-end;
  }
  .hero-headline h1 { font-size: 13vw; line-height: 1.02; max-width: 100%; }
  .hero-notch {
    /* On mobile: span most of the width, still centred via left:0/right:0/margin:auto */
    width: calc(100% - 8vw);
    border-radius: 16px 16px 0 0;
    border-top: 7px solid #fff;
    border-left: 7px solid #fff;
    border-right: 7px solid #fff;
  }
  .hero-notch-thumb { flex: 0 0 80px; }
  .hero-notch-thumb img { min-height: 80px; }
  .hero-notch-content { padding: 1rem 1.2rem; }
  .hero-notch-title { font-size: 0.8125rem; }

  /* Story */
  .story-headline { max-width: 100%; margin: 0; font-size: 6.4vw; }
  .story-cols { grid-template-columns: 1fr; margin: 12vw 0 0; gap: 8vw; }
  .mono-body { font-size: 0.875rem; }

  /* News */
  .news-headline { position: static; font-size: 12vw; margin-bottom: 8vw; text-align: left; }
  .news-grid { grid-template-columns: 1fr; margin-top: 0; }
  .news-card {
    border-right: none !important;
    border-left: none !important;
    border-top: 1px solid #9c9c9c;
    padding: 6vw 0 12vw;
    min-height: unset;
  }
  .news-card h3 { font-size: 5.4vw; }
  .news-badge, .news-badge--gptw { width: 14vw; right: 0; bottom: 12vw; }
  .view-link { left: 0; bottom: 4vw; font-size: 0.75rem; }

  /* Perspectives */
  .perspectives-headline { position: static; font-size: 12vw; margin-bottom: 8vw; text-align: left; }
  .perspectives-list { margin: 0; max-width: 100%; padding: 0 0 0 4vw; }
  .p-item { font-size: 6vw; margin-bottom: 6vw; }
  .p-rail { display: none; }

  /* Originals */
  .originals-headline { font-size: 10vw; }
  .originals-caption { max-width: 100%; font-size: 1rem; padding: 0 3vw; }
  .video-zoom-wrapper { width: 100%; }

  /* Solutions */
  .solutions-headline { font-size: 11vw; }
  .solutions-grid { grid-template-columns: 1fr 1fr; gap: 4vw; }
  .sol-copy { font-size: 0.875rem; }

  /* Stories */
  .stories-headline { position: static; font-size: 11vw; margin-bottom: 8vw; text-align: left; }
  .stories-grid { grid-template-columns: 1fr; margin: 0; gap: 8vw; }
  .story-card { min-height: 62vw; padding: 5vw 6vw; }
  .story-card h3 { font-size: 6vw; }

  /* Partners */
  .partners-headline { font-size: 11vw; }
  .partners-group { gap: 8vw; padding: 0 4vw; }
  .partners-group img { height: 28px; }

  /* Conversations */
  .s-conversations { min-height: 90vh; }
  .conv-copy { margin-left: 0; padding: 4vw var(--gutter); text-align: left; }
  .conv-copy p { font-size: 1rem; }

  /* CTA */
  .cta-headline { font-size: 9vw; }
  .cta-buttons { flex-direction: column; width: 100%; }
  .cta-btn { min-width: 0; width: 100%; }

  /* Footer */
  .foot-grid { grid-template-columns: 1fr 1fr; gap: 8vw 4vw; }
}