/* ============================================================
   ProTech — IIT Delhi Textile & Fibre Engineering
   Design system v4: light "biofarma-style" theme (default) with
   a toggleable dark "deep-tech" theme — same layout/markup,
   switched entirely through CSS custom properties keyed off
   [data-theme] on <html>. Class names/selectors are unchanged
   so every existing page keeps working.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=IBM+Plex+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

/* =========================================================
   LIGHT THEME (default) — Biofarma-inspired: white canvas,
   deep teal headings, magenta/pink accent, pastel tints
   ========================================================= */
:root, [data-theme="light"] {
  /* ---- Core backgrounds ---- */
  --void:        #ffffff;
  --panel:       #ffffff;
  --panel-2:     #f6f5fa;
  --canvas:      #ffffff;
  --canvas-2:    #f7f7fb;

  /* ---- Typography ---- */
  --canvas-ink:  #12312b;
  --ink:         #12312b;
  --ink-dim:     #5c6b72;
  --ink-dim-2:   #90a0a6;

  /* ---- Borders / dividers ---- */
  --line:        #e8e6ee;
  --line-canvas: #e8e6ee;

  /* ---- Brand colors ---- */
  --kevlar:      #dd2670;   /* signature magenta/pink */
  --kevlar-dim:  #b81558;
  --impact:      #0f4a40;   /* deep teal secondary */
  --impact-dim:  #0b352e;

  /* ---- Tertiary + pastel tints ---- */
  --blue:          #3b62a8;
  --blue-soft:     #e6eef8;
  --pink-soft:     #fbe4ec;
  --lavender-soft: #efe9f7;
  --mint-soft:     #e3f3ee;

  --success: #16a34a;
  --warning: #f59e0b;
  --danger:  #dc2626;

  /* ---- Gradients ---- */
  --grad: linear-gradient(120deg, #dd2670 0%, #0f4a40 100%);
  --grad-soft: linear-gradient(120deg, rgba(221,38,112,.08), rgba(15,74,64,.08));

  /* ---- Shadows ---- */
  --shadow-sm: 0 1px 2px rgba(18, 49, 43, 0.05);
  --shadow-md: 0 8px 24px rgba(18, 49, 43, 0.08);
  --shadow-lg: 0 20px 50px rgba(18, 49, 43, 0.10);
  --shadow-brand: 0 12px 30px rgba(221, 38, 112, 0.18);

  /* ---- Header ---- */
  --header-bg: rgba(255,255,255,.82);
  --header-bg-scrolled: rgba(255,255,255,.97);
  --header-shadow-scrolled: var(--shadow-md);

  /* ---- Ambient hero blobs ---- */
  --blob-1: rgba(221,38,112,.14);
  --blob-2: rgba(59,98,168,.12);
  --blob-opacity: 1;

  /* ---- Pointer follower ---- */
  --cursor-glow: rgba(221,38,112,.55);
  --cursor-ring-border: rgba(221,38,112,.4);
  --cursor-ring-bg: rgba(15,74,64,.05);
  --cursor-ring-hover-bg: rgba(221,38,112,.08);

  /* ---- Buttons ---- */
  --btn-bg: #ffffff;
  --btn-dot-display: block;
  --btn-primary-bg: #ffffff;
  --btn-primary-color: var(--ink);
  --btn-primary-shadow: var(--shadow-sm);
  --btn-primary-hover-shadow: var(--shadow-brand);
  --btn-ghost-bg: #ffffff;
  --btn-ghost-hover-bg: var(--pink-soft);

  /* ---- Stat strip ---- */
  --stat-strip-bg: var(--canvas-2);
  --stat-strip-gap: 18px;

  /* ---- Video / photo scrims (kept legible in both themes) ---- */
  --scrim: rgba(18,49,43,.28);
  --scrim-hover: rgba(18,49,43,.42);
  --scrim-strong: rgba(10,20,18,.9);
  --scrim-counter: rgba(18,49,43,.72);

  /* ---- Type ---- */
  --display: 'Space Grotesk', sans-serif;
  --body: 'IBM Plex Sans', sans-serif;
  --mono: 'IBM Plex Mono', monospace;

  --container: 1140px;
}

/* =========================================================
   DARK THEME — deep-tech: navy canvas, cyan → blue gradient
   ========================================================= */
[data-theme="dark"] {
  --void:        #060b17;
  --panel:       #0e1626;
  --panel-2:     #16213a;
  --canvas:      #0e1626;
  --canvas-2:    #16213a;

  --canvas-ink:  #eef3fb;
  --ink:         #eef3fb;
  --ink-dim:     #9fb0cf;
  --ink-dim-2:   #6d7d9c;

  --line:        #1c2740;
  --line-canvas: #1c2740;

  --kevlar:      #22d3ee;
  --kevlar-dim:  #0ea5b8;
  --impact:      #5b8cff;
  --impact-dim:  #3563e0;

  --blue:          #5b8cff;
  --blue-soft:     #16213a;
  --pink-soft:     #16213a;
  --lavender-soft: #16213a;
  --mint-soft:     #16213a;

  --grad: linear-gradient(120deg, #22d3ee 0%, #5b8cff 100%);
  --grad-soft: linear-gradient(120deg, rgba(34,211,238,.16), rgba(91,140,255,.16));

  --shadow-sm: 0 1px 2px rgba(0,0,0,.35);
  --shadow-md: 0 8px 24px -4px rgba(0,0,0,.5);
  --shadow-lg: 0 20px 40px -16px rgba(0,0,0,.6);
  --shadow-brand: 0 12px 30px -6px rgba(91,140,255,.5);

  --header-bg: rgba(6,11,23,.72);
  --header-bg-scrolled: rgba(6,11,23,.92);
  --header-shadow-scrolled: 0 8px 30px -12px rgba(0,0,0,.5);

  --blob-1: rgba(34,211,238,.55);
  --blob-2: rgba(91,140,255,.45);
  --blob-opacity: .55;

  --cursor-glow: rgba(34,211,238,.7);
  --cursor-ring-border: rgba(34,211,238,.55);
  --cursor-ring-bg: rgba(91,140,255,.06);
  --cursor-ring-hover-bg: rgba(34,211,238,.12);

  --btn-bg: rgba(255,255,255,.02);
  --btn-dot-display: none;
  --btn-primary-bg: var(--grad);
  --btn-primary-color: #04121a;
  --btn-primary-shadow: 0 8px 24px -8px rgba(34,211,238,.55);
  --btn-primary-hover-shadow: 0 12px 30px -6px rgba(91,140,255,.65);
  --btn-ghost-bg: rgba(255,255,255,.02);
  --btn-ghost-hover-bg: rgba(34,211,238,.06);

  --stat-strip-bg: linear-gradient(90deg, var(--void), var(--panel), var(--void));
  --stat-strip-gap: 56px;

  --scrim: rgba(6,11,23,.32);
  --scrim-hover: rgba(6,11,23,.48);
  --scrim-strong: rgba(3,6,14,.9);
  --scrim-counter: rgba(6,11,23,.72);
}

*,*::before,*::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; overflow-x: hidden; }
body{
  margin:0;
  background: var(--void);
  color: var(--ink-dim);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  transition: background .3s ease, color .3s ease;
  overflow-x: hidden;
  width: 100%;
}
body.has-cursor, body.has-cursor a, body.has-cursor button, body.has-cursor .accordion-btn, body.has-cursor .research-card-head{ cursor:none; }
img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration: none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{
  font-family: var(--display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 .5em;
  letter-spacing: -0.01em;
  color: var(--ink);
}
p{ margin: 0 0 1em; }
.container{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
  position: relative;
}
:focus-visible{
  outline: 2px solid var(--kevlar);
  outline-offset: 3px;
}
@media (prefers-reduced-motion: reduce){
  *{ animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior:auto !important; }
}

/* ============================================================
   Theme toggle button
   ============================================================ */
.theme-toggle{
  width:38px; height:38px; border-radius:50%;
  border:1px solid var(--line); background: var(--btn-bg); color: var(--ink);
  display:flex; align-items:center; justify-content:center; cursor:pointer; flex-shrink:0;
  transition: border-color .2s ease, background .2s ease, transform .2s ease;
}
.theme-toggle:hover{ border-color: var(--kevlar-dim); transform: translateY(-2px); }
.theme-toggle .icon-moon{ display:none; }
.theme-toggle .icon-sun{ display:block; }
[data-theme="dark"] .theme-toggle .icon-sun{ display:none; }
[data-theme="dark"] .theme-toggle .icon-moon{ display:block; color: var(--kevlar); }

/* ============================================================
   Ambient background blobs — soft blurred color spots, scattered
   low-opacity behind content (used as a generic helper class)
   ============================================================ */
.bg-blobs{ position:absolute; inset:0; overflow:hidden; z-index:-1; pointer-events:none; }
.bg-blobs::before, .bg-blobs::after{
  content:""; position:absolute; border-radius:50%; filter: blur(70px);
}
.bg-blobs::before{
  width:420px; height:420px; bottom:-160px; right:-120px;
  background: radial-gradient(circle, var(--blob-1), transparent 70%);
}
.bg-blobs::after{
  width:380px; height:380px; bottom:-120px; right:220px;
  background: radial-gradient(circle, var(--blob-2), transparent 70%);
}

/* ============================================================
   Pointer follower (desktop only — added via JS body.has-cursor)
   ============================================================ */
.cursor-dot, .cursor-ring{
  position: fixed; top:0; left:0; z-index: 9999;
  pointer-events:none;
  border-radius:50%;
  transform: translate(-50%,-50%);
  will-change: transform;
}
.cursor-dot{
  width:7px; height:7px;
  background: var(--kevlar);
  box-shadow: 0 0 10px 2px var(--cursor-glow);
  transition: opacity .2s ease, background .2s ease;
}
.cursor-ring{
  width:34px; height:34px;
  border: 1.5px solid var(--cursor-ring-border);
  background: var(--cursor-ring-bg);
  transition: width .22s ease, height .22s ease, border-color .22s ease, background .22s ease, opacity .2s ease;
}
.cursor-ring.hovering{
  width:56px; height:56px;
  border-color: var(--impact);
  background: var(--cursor-ring-hover-bg);
}
.cursor-dot.hidden, .cursor-ring.hidden{ opacity:0; }

/* ============================================================
   Scroll reveal (elements get .reveal via JS, .in-view on
   intersect)
   ============================================================ */
.reveal{
  opacity:0;
  transform: translateY(22px);
  transition: opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1);
}
.reveal.in-view{ opacity:1; transform: translateY(0); }
.reveal:nth-child(2){ transition-delay: .06s; }
.reveal:nth-child(3){ transition-delay: .12s; }
.reveal:nth-child(4){ transition-delay: .18s; }
.reveal:nth-child(5){ transition-delay: .24s; }
.reveal:nth-child(6){ transition-delay: .3s; }

/* ---- eyebrow / mono labels + gradient accent text ---- */
.eyebrow{
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom: 14px;
}
.eyebrow::before{
  content:"";
  width: 18px; height: 1px;
  background: var(--grad);
  display:inline-block;
}
.eyebrow.on-canvas{ background: var(--grad); -webkit-background-clip:text; background-clip:text; color:transparent; }

section{ padding: 96px 0; position:relative; }
@media (max-width: 720px){ section{ padding: 64px 0; } }

.section-head{ max-width: 640px; margin-bottom: 48px; }
.section-head h2{ font-size: clamp(1.7rem, 3.2vw, 2.5rem); }
.section-head p{ color: var(--ink-dim); font-size: 1.05rem; }
.on-canvas .section-head p{ color: var(--ink-dim); }

/* ---- Buttons ---- */
.btn{
  font-family: var(--body);
  font-weight: 600;
  font-size: .92rem;
  letter-spacing: .01em;
  padding: 14px 24px 14px 28px;
  border-radius: 999px;
  display:inline-flex;
  align-items:center;
  gap:12px;
  border: 1px solid var(--line);
  cursor:pointer;
  background: var(--btn-bg);
  color: var(--ink);
  box-shadow: var(--shadow-sm);
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}
.btn::after{
  content:"";
  width:7px; height:7px; border-radius:50%;
  background: var(--kevlar);
  flex-shrink:0;
  display: var(--btn-dot-display);
}
.btn:hover{ transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: var(--kevlar-dim); }
.btn-primary{ background: var(--btn-primary-bg); color: var(--btn-primary-color); box-shadow: var(--btn-primary-shadow); }
.btn-primary:hover{ box-shadow: var(--btn-primary-hover-shadow); }
.btn-ghost{ border-color: var(--line); color: var(--ink); background: var(--btn-ghost-bg); }
.btn-ghost:hover{ border-color: var(--kevlar); background: var(--btn-ghost-hover-bg); }
.btn-ghost::after{ background: var(--impact); }
.on-canvas .btn-ghost{ border-color: var(--line-canvas); color: var(--canvas-ink); background: var(--panel); }

/* ============================================================
   Woven interlace motif (signature element)
   ============================================================ */
.weave-divider{
  width:100%; height: 22px;
  overflow:hidden;
}
.weave-divider svg{ width:100%; height:100%; display:block; }

.weave-mark{ width: 34px; height: 34px; flex-shrink:0; }

@keyframes weave-in{
  from{ stroke-dashoffset: 60; opacity:0; }
  to{ stroke-dashoffset: 0; opacity:1; }
}
.hero-weave path{
  stroke-dasharray: 60;
  animation: weave-in 1.4s ease forwards;
}
.hero-weave path:nth-child(odd){ animation-delay: .05s; }
.hero-weave path:nth-child(3n){ animation-delay: .25s; }
.hero-weave path:nth-child(4n){ animation-delay: .4s; }

/* ============================================================
   Header / Nav
   ============================================================ */
header.site{
  position: sticky; top:0; z-index: 100;
  background: var(--header-bg);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  transition: background .25s ease, box-shadow .25s ease;
}
header.site.scrolled{ background: var(--header-bg-scrolled); box-shadow: var(--header-shadow-scrolled); }
.nav-row{
  display:flex; align-items:center; justify-content:space-between;
  padding: 16px 0;
  gap: 16px;
}
.brand{ display:flex; align-items:center; gap:12px; }
.brand-word{ font-family: var(--display); font-weight:700; font-size:1.15rem; letter-spacing:-0.01em; color: var(--ink); }
.brand-word span{ background: var(--grad); -webkit-background-clip:text; background-clip:text; color:transparent; }

nav.primary{ display:flex; align-items:center; gap: 4px; }
nav.primary > ul{ display:flex; align-items:center; gap: 2px; }
nav.primary a.top-link{
  font-family: var(--body);
  font-weight: 500;
  font-size: .88rem;
  letter-spacing:.01em;
  padding: 10px 14px;
  color: var(--ink-dim);
  border-radius: 999px;
  transition: color .15s ease, background .15s ease;
  display:block;
}
nav.primary a.top-link:hover, nav.primary li.active > a.top-link{ color: var(--impact); background: var(--panel-2); }

li.has-drop{ position:relative; }
.drop{
  position:absolute; top: calc(100% + 8px); left:0;
  min-width: 220px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 8px;
  opacity:0; visibility:hidden; transform: translateY(6px);
  transition: all .18s ease;
  box-shadow: var(--shadow-lg);
}
li.has-drop:hover .drop, li.has-drop:focus-within .drop{ opacity:1; visibility:visible; transform:translateY(0); }
.drop a{ display:block; padding: 10px 12px; border-radius:8px; font-size:.88rem; color: var(--ink-dim); }
.drop a:hover{ background: var(--panel-2); color: var(--impact); }

.nav-cta{ display:flex; align-items:center; gap:14px; }
.menu-toggle{ display:none; background:none; border:none; color:var(--ink); cursor:pointer; padding:8px; }

@media (max-width: 900px){
  nav.primary{ position: fixed; top: 64px; left:0; right:0; height: calc(100vh - 64px); height: calc(100dvh - 64px); background: var(--void); flex-direction:column; align-items:stretch; padding: 20px; transform: translateX(100%); transition: transform .25s ease; overflow-y:auto; z-index: 90; }
  nav.primary.open{ transform: translateX(0); }
  nav.primary > ul{ flex-direction:column; align-items:stretch; gap:0; }
  nav.primary a.top-link{ padding: 16px 6px; font-size: 1rem; border-bottom: 1px solid var(--line); border-radius:0; }
  .drop{ position:static; opacity:1; visibility:visible; transform:none; display:none; border:none; background:none; padding: 0 0 0 16px; box-shadow:none; }
  li.has-drop.open .drop{ display:block; }
  .menu-toggle{ display:block; }
  .nav-cta .btn-ghost{ display:none; }
}

/* ============================================================
   Hero
   ============================================================ */
.hero{
  position:relative;
  padding: 100px 0 110px;
  border-bottom: 1px solid var(--line);
  overflow:hidden;
  isolation: isolate;
}
.hero::before, .hero::after{
  content:"";
  position:absolute;
  border-radius:50%;
  filter: blur(90px);
  z-index:-1;
  opacity: var(--blob-opacity);
}
.hero::before{
  width:520px; height:520px; top:-220px; right:-120px;
  background: radial-gradient(circle, var(--blob-1), transparent 70%);
}
.hero::after{
  width:460px; height:460px; bottom:-260px; left:-140px;
  background: radial-gradient(circle, var(--blob-2), transparent 70%);
}
.hero-bg{
  position:absolute; inset:0;
  opacity:.18;
  pointer-events:none;
}
.hero-inner{ position:relative; max-width: 760px; }
.hero h1{ font-size: clamp(2.3rem, 5.4vw, 3.8rem); margin-bottom:.4em; color: var(--ink); }
.hero h1 em{
  font-style:normal;
  background: var(--grad);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.hero p.lede{ font-size: 1.2rem; color: var(--ink-dim); max-width: 560px; }
.hero-cta{ display:flex; gap:14px; margin-top: 32px; flex-wrap:wrap; }

.page-hero{ padding: 64px 0 52px; border-bottom:1px solid var(--line); position:relative; overflow:hidden; isolation:isolate; }
.page-hero::before{
  content:""; position:absolute; top:-180px; right:-160px; width:420px; height:420px; border-radius:50%;
  background: radial-gradient(circle, var(--blob-1), transparent 70%); filter: blur(80px); z-index:-1; opacity: var(--blob-opacity);
}
.page-hero h1{ font-size: clamp(1.9rem, 4vw, 2.8rem); }
.page-hero p{ color:var(--ink-dim); max-width:640px; font-size:1.05rem; }
.crumb{ font-family:var(--mono); font-size:.75rem; color:var(--ink-dim-2); letter-spacing:.04em; margin-bottom:14px; }
.crumb a:hover{ color: var(--kevlar); }

/* ============================================================
   Cards / grids
   ============================================================ */
.grid{ display:grid; gap: 22px; }
.grid.cols-2{ grid-template-columns: repeat(2,1fr); }
.grid.cols-3{ grid-template-columns: repeat(3,1fr); }
.grid.cols-4{ grid-template-columns: repeat(4,1fr); }
@media (max-width: 900px){ .grid.cols-3, .grid.cols-4{ grid-template-columns: repeat(2,1fr); } }
@media (max-width: 620px){ .grid.cols-2, .grid.cols-3, .grid.cols-4{ grid-template-columns: 1fr; } }

.card{
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: border-color .25s ease, transform .25s ease, box-shadow .25s ease, background .3s ease;
}
.card:hover{ border-color: var(--kevlar-dim); transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card h3{ font-size:1.15rem; margin-bottom:10px; }
.card p{ color: var(--ink-dim); font-size: .95rem; margin-bottom:0; }
.card .tag{ font-family:var(--mono); font-size:.68rem; letter-spacing:.08em; color:var(--impact); text-transform:uppercase; margin-bottom:10px; display:block; }

/* soft pastel tint variety across repeating card grids (light theme only) */
[data-theme="light"] .grid .card:nth-child(3n+1), [data-theme="light"] .research-grid .research-card:nth-child(3n+1){ background: var(--pink-soft); border-color: transparent; }
[data-theme="light"] .grid .card:nth-child(3n+2), [data-theme="light"] .research-grid .research-card:nth-child(3n+2){ background: var(--blue-soft); border-color: transparent; }
[data-theme="light"] .grid .card:nth-child(3n+3), [data-theme="light"] .research-grid .research-card:nth-child(3n+3){ background: var(--lavender-soft); border-color: transparent; }
[data-theme="dark"] .grid .card, [data-theme="dark"] .research-grid .research-card{ background: linear-gradient(180deg, var(--panel), var(--panel-2)); }

/* research domain card link */
a.card{ display:block; }

.facility-card{ text-align:center; padding: 18px; }
.facility-card h3{ font-size:.95rem; margin:0; }
.facility-photo{
  aspect-ratio: 4/3; border-radius:14px; overflow:hidden; margin-bottom:14px;
  background:#fff; display:flex; align-items:center; justify-content:center;
}
.facility-photo img{ width:100%; height:100%; object-fit:contain; }

/* ---- media placeholder (for photos/schematics to be added) ---- */
.media{
  border-radius: 18px;
  overflow:hidden;
  border: 1px solid var(--line);
  background: var(--panel);
}
.media img{ width:100%; height:100%; object-fit:cover; }

/* ---- constrained diagrams/schematics ---- */
.media-diagram{
  border-radius: 18px;
  border: 1px solid var(--line);
  background: var(--panel);
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:center;
  padding: 18px;
  max-height: 460px;
}
.on-canvas .media-diagram{ background: var(--panel); border-color: var(--line-canvas); }
.media-diagram img{ width:auto; height:auto; max-width:100%; max-height:420px; object-fit:contain; display:block; }
@media (max-width:720px){
  .media-diagram{ max-height: 320px; }
  .media-diagram img{ max-height: 280px; }
}
.media-placeholder{
  aspect-ratio: 4/3;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  gap:10px;
  border: 1.5px dashed var(--line);
  border-radius:18px;
  background: repeating-linear-gradient(135deg, var(--panel), var(--panel) 10px, var(--panel-2) 10px, var(--panel-2) 11px);
  color: var(--ink-dim-2);
  font-family: var(--mono);
  font-size: .74rem;
  text-align:center;
  padding: 20px;
  letter-spacing:.02em;
}
.media-placeholder svg{ width:28px; height:28px; opacity:.6; }
.on-canvas .media-placeholder{ border-color: var(--line-canvas); background: repeating-linear-gradient(135deg, var(--canvas-2), var(--canvas-2) 10px, var(--canvas) 10px, var(--canvas) 11px); color:var(--ink-dim-2); }

/* ============================================================
   Spec sheet blocks
   ============================================================ */
.spec-grid{ display:grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items:start; }
@media (max-width: 900px){ .spec-grid{ grid-template-columns:1fr; } }
.spec-block{ margin-bottom: 26px; }
.spec-block h4{
  font-family:var(--mono); font-size:.75rem; letter-spacing:.1em; text-transform:uppercase;
  color: var(--impact); margin-bottom:12px;
}
.spec-block ul li{
  position:relative; padding-left:18px; margin-bottom:8px; color:var(--ink-dim); font-size:.95rem;
}
.spec-block ul li::before{
  content:""; position:absolute; left:0; top:.65em; width:6px; height:6px; background:var(--kevlar); border-radius:50%;
}

.stat-row{ display:grid; grid-template-columns: repeat(3,1fr); gap:18px; margin: 28px 0; }
@media (max-width:620px){ .stat-row{ grid-template-columns: 1fr 1fr; } }
.stat{ border-left: 2px solid var(--kevlar); padding-left:14px; }
.stat .num{ font-family:var(--mono); font-size:1.5rem; color:var(--ink); display:block; }
.stat .lbl{ font-size:.78rem; color:var(--ink-dim-2); }
.on-canvas .stat .num{ color: var(--canvas-ink); }
.on-canvas .stat .lbl{ color:var(--ink-dim); }

/* ============================================================
   Tables (publications / specs on canvas pages)
   ============================================================ */
.on-canvas{ background: var(--canvas); color: var(--canvas-ink); }
.on-canvas .ink-dim, .on-canvas p{ color: var(--ink-dim); }
.on-canvas .card{ background: var(--panel); border-color: var(--line-canvas); }
.on-canvas .card:hover{ border-color: var(--kevlar-dim); box-shadow: var(--shadow-lg); }
.on-canvas .card p{ color: var(--ink-dim); }

.pub-group{ margin-bottom: 42px; }
.pub-group h3{ font-size:1.2rem; display:flex; align-items:baseline; gap:10px; }
.pub-group h3 .count{ font-family:var(--mono); font-size:.75rem; color: var(--kevlar-dim); font-weight:400; }
.pub-list li{
  padding: 14px 0; border-bottom:1px solid var(--line-canvas); font-size:.94rem; line-height:1.55;
}
.pub-list li .authors{ font-weight:500; }
.pub-list li .venue{ font-family:var(--mono); font-size:.82rem; color: var(--ink-dim-2); }

/* accordion (FAQ / publication groups on mobile) */
.accordion-item{ border-bottom:1px solid var(--line); }
.accordion-btn{
  width:100%; text-align:left; background:none; border:none; color:inherit; cursor:pointer;
  padding: 22px 0; display:flex; justify-content:space-between; align-items:center; gap:20px;
  font-family:var(--display); font-size:1.05rem; font-weight:600;
}
.on-canvas .accordion-item{ border-color: var(--line-canvas); }
.accordion-icon{ width:18px; height:18px; flex-shrink:0; transition: transform .2s ease; }
.accordion-item.open .accordion-icon{ transform: rotate(45deg); }
.accordion-panel{ max-height:0; overflow:hidden; transition: max-height .25s ease; }
.accordion-panel > div{ padding-bottom:22px; color:var(--ink-dim); }
.on-canvas .accordion-panel > div{ color: var(--ink-dim); }

/* ============================================================
   People
   ============================================================ */
.person{ display:flex; gap:18px; align-items:flex-start; }
.person .avatar{ width:64px; height:64px; border-radius:50%; flex-shrink:0; object-fit:cover; }

.person-card{
  background: var(--panel); border:1px solid var(--line); border-radius:18px;
  padding: 24px 20px; text-align:center; box-shadow: var(--shadow-sm);
  transition:border-color .25s ease, transform .25s ease, box-shadow .25s ease, background .3s ease;
}
[data-theme="dark"] .person-card{ background: linear-gradient(180deg, var(--panel), var(--panel-2)); }
.person-card:hover{ border-color:var(--kevlar-dim); transform:translateY(-4px); box-shadow: var(--shadow-lg); }
.person-card .avatar-lg{
  width:78px; height:78px; border-radius:50%; object-fit:cover; margin:0 auto 14px; display:block;
  border: 2px solid var(--line);
}
.person-card h3{ font-size:1rem; margin-bottom:4px; }
.person-card p{ color:var(--ink-dim); font-size:.88rem; margin-bottom:0; }
.on-canvas .person-card{ background: var(--panel); border-color: var(--line-canvas); }
.on-canvas .person-card .avatar-lg{ border-color: var(--line-canvas); }
.on-canvas .person-card p{ color:var(--ink-dim); }
.person h4{ font-size:1rem; margin-bottom:2px; }
.person .role{ font-size:.85rem; color: var(--impact); margin-bottom:6px; }
.person .meta{ font-size:.85rem; color: var(--ink-dim); }

.people-row{ display:flex; flex-wrap:wrap; gap: 10px 22px; }
.people-row .chip{
  display:flex; align-items:center; gap:10px;
  background:var(--panel); border:1px solid var(--line); border-radius:24px; padding:8px 16px 8px 8px;
  font-size:.88rem;
}
.people-row .chip .dot{ width:30px;height:30px;border-radius:50%; background: var(--kevlar); display:flex; align-items:center; justify-content:center; font-family:var(--mono); font-size:.7rem; color:#fff; font-weight:600; }

/* ============================================================
   Gallery
   ============================================================ */
.gallery-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap:14px; }
@media (max-width:800px){ .gallery-grid{ grid-template-columns: repeat(2,1fr);} }
@media (max-width:500px){ .gallery-grid{ grid-template-columns: 1fr;} }
.gallery-empty{
  text-align:center; padding: 60px 24px; border:1.5px dashed var(--line); border-radius:18px;
}
.gallery-empty h3{ margin-bottom:8px; }
.gallery-empty p{ color:var(--ink-dim); max-width:420px; margin:0 auto 20px; }

/* ============================================================
   Timeline (History)
   ============================================================ */
.timeline{ position:relative; padding-left: 32px; }
.timeline::before{ content:""; position:absolute; left:6px; top:6px; bottom:6px; width:1px; background: var(--line-canvas); }
.tl-item{ position:relative; padding-bottom: 36px; }
.tl-item::before{ content:""; position:absolute; left:-32px; top:4px; width:11px; height:11px; border-radius:50%; background:var(--kevlar); }
.tl-item .yr{ font-family:var(--mono); font-size:.8rem; color: var(--kevlar-dim); display:block; margin-bottom:4px; }

/* ============================================================
   Footer
   ============================================================ */
footer.site{ border-top:1px solid var(--line); padding: 56px 0 32px; margin-top: 40px; position:relative; overflow:hidden; background: var(--canvas-2); }
footer.site::before{
  content:""; position:absolute; top:0; left:0; right:0; height:2px; background: var(--grad);
}
.footer-grid{ display:grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; margin-bottom:40px; }
@media (max-width:720px){ .footer-grid{ grid-template-columns:1fr; gap:28px; } }
.footer-grid h5{ font-family:var(--mono); font-size:.72rem; letter-spacing:.1em; text-transform:uppercase; color:var(--ink-dim-2); margin-bottom:16px; }
.footer-grid ul li{ margin-bottom:10px; }
.footer-grid a:hover{ color: var(--kevlar); }
.footer-grid p{ color:var(--ink-dim); font-size:.92rem; max-width:320px; }
.footer-bottom{ display:flex; justify-content:space-between; align-items:center; padding-top:24px; border-top:1px solid var(--line); font-size:.82rem; color:var(--ink-dim-2); flex-wrap:wrap; gap:10px; }

/* ============================================================
   Carousel (Awards page — ceremony/award photos)
   ============================================================ */
.carousel{ position:relative; max-width:640px; margin:0 auto; }
.carousel-viewport{ overflow:hidden; border-radius:18px; border:1px solid var(--line-canvas); background: var(--panel); }
.carousel-track{ display:flex; transition:transform .45s cubic-bezier(.65,0,.35,1); }
.carousel-slide{ flex:0 0 100%; min-width:0; }
.carousel-slide img{ width:100%; aspect-ratio:4/3; object-fit:cover; display:block; background:var(--panel-2); }
.carousel-caption{ padding:16px 22px; font-size:.92rem; color:var(--ink-dim); background: var(--panel); border-top:1px solid var(--line-canvas); min-height:52px; }
.carousel-caption strong{ color:var(--canvas-ink); }
.carousel-btn{
  position:absolute; top:38%; transform:translateY(-50%);
  background: var(--panel); border:1px solid var(--line-canvas); width:38px; height:38px; border-radius:50%;
  display:flex; align-items:center; justify-content:center; cursor:pointer; box-shadow: var(--shadow-md);
  transition: transform .15s ease;
}
.carousel-btn:hover{ transform:translateY(-50%) scale(1.08); }
.carousel-btn.prev{ left:-19px; } .carousel-btn.next{ right:-19px; }
@media (max-width:720px){ .carousel-btn.prev{ left:6px; } .carousel-btn.next{ right:6px; } }
.carousel-dots{ display:flex; justify-content:center; gap:8px; margin-top:18px; }
.carousel-dot{ width:8px; height:8px; border-radius:50%; background:var(--line-canvas); cursor:pointer; border:none; padding:0; transition: all .2s ease; }
.carousel-dot.active{ background: var(--kevlar); width:22px; border-radius:4px; }
.carousel-counter{ position:absolute; top:14px; right:14px; background: var(--scrim-counter); color:#fff; font-family:var(--mono); font-size:.72rem; padding:4px 9px; border-radius:20px; }
.mt-0{margin-top:0} .mb-0{margin-bottom:0}
.text-center{text-align:center}

/* ============================================================
   Video modal (Home page click-to-play)
   ============================================================ */
.video-trigger{ position:relative; cursor:pointer; display:block; border-radius:18px; overflow:hidden; }
.video-trigger::after{
  content:""; position:absolute; inset:0;
  background: var(--scrim);
  transition: background .2s ease;
}
.video-trigger:hover::after{ background: var(--scrim-hover); }
.video-play-btn{
  position:absolute; top:50%; left:50%; transform:translate(-50%,-50%);
  width:68px; height:68px; border-radius:50%;
  background: var(--btn-primary-bg); display:flex; align-items:center; justify-content:center;
  box-shadow: var(--shadow-lg);
  transition: transform .2s ease;
}
.video-trigger:hover .video-play-btn{ transform:translate(-50%,-50%) scale(1.08); }
.video-play-btn svg{ margin-left:4px; color: var(--btn-primary-color); }

.video-modal-overlay{
  position:fixed; inset:0; z-index:1000;
  background: var(--scrim-strong);
  display:flex; align-items:center; justify-content:center;
  padding: 24px;
  animation: fade-in .18s ease;
}
@keyframes fade-in{ from{opacity:0;} to{opacity:1;} }
.video-modal-box{ position:relative; width:100%; max-width:920px; }
.video-modal-frame{ position:relative; width:100%; aspect-ratio:16/9; border-radius:18px; overflow:hidden; background:#000; }
.video-modal-frame iframe{ position:absolute; inset:0; width:100%; height:100%; border:0; }
.video-modal-close{
  position:absolute; top:-44px; right:0; background:none; border:none; color:#fff; cursor:pointer;
  width:34px; height:34px; display:flex; align-items:center; justify-content:center;
}

/* ============================================================
   LinkedIn profile link badge
   ============================================================ */
.li-link{
  display:inline-flex; align-items:center; justify-content:center;
  width:26px; height:26px; border-radius:50%; margin-top:10px;
  background: var(--panel-2); color: var(--impact);
  font-family: var(--mono); font-size:.66rem; font-weight:600;
  transition: background .15s ease, color .15s ease, transform .15s ease;
}
.li-link:hover{ background: var(--kevlar); color:#fff; transform: translateY(-1px); }
.on-canvas .li-link{ background: var(--panel-2); }
.person-card .li-link{ margin-left:auto; margin-right:auto; }
.person .li-link{ margin-top:6px; }

/* ============================================================
   Patent list (Publications page)
   ============================================================ */
.patent-list{ margin-top:18px; }
.patent-list li{
  display:grid; grid-template-columns: 92px 1fr; gap:4px 16px;
  padding: 14px 0; border-bottom:1px solid var(--line-canvas);
  align-items:baseline;
}
.patent-status{
  font-family:var(--mono); font-size:.68rem; letter-spacing:.05em; text-transform:uppercase;
  padding:3px 8px; border-radius:20px; text-align:center; height:fit-content;
  background: var(--panel-2); color: var(--ink-dim);
}
.patent-list li.granted .patent-status{ background: var(--mint-soft); color:#0e8f83; }
[data-theme="dark"] .patent-list li.granted .patent-status{ color: var(--kevlar); }
.patent-list li.pending .patent-status{ background: var(--pink-soft); color: var(--kevlar-dim); }
[data-theme="dark"] .patent-list li.pending .patent-status{ color: var(--impact); }
.patent-title{ font-size:.95rem; color:var(--canvas-ink); grid-column:2; }
.patent-meta{ font-family:var(--mono); font-size:.78rem; color: var(--ink-dim-2); grid-column:2; }
@media (max-width:620px){
  .patent-list li{ grid-template-columns: 1fr; }
  .patent-status{ width:fit-content; }
}

/* ============================================================
   Facility pricing tags
   ============================================================ */
.price-tag{
  display:flex; justify-content:space-between; gap:8px;
  font-family:var(--mono); font-size:.72rem; color: var(--ink-dim);
  border-top:1px dashed var(--line); padding-top:10px; margin-top:12px;
}
.price-tag span:first-child{ color: var(--kevlar); }
.price-tag span:last-child{ color: var(--ink-dim-2); }
.price-tag.price-tbd{ justify-content:center; color: var(--ink-dim-2); font-style:italic; }
@media (max-width:400px){ .price-tag{ flex-direction:column; gap:2px; } }

/* ============================================================
   Research domain accordion cards
   ============================================================ */
.research-grid{ display:grid; grid-template-columns:repeat(2,1fr); gap:20px; }
@media (max-width:720px){ .research-grid{ grid-template-columns:1fr; } }

.research-card{
  background: var(--panel); border:1px solid var(--line); border-radius:18px;
  overflow:hidden; transition: border-color .25s ease, grid-column .2s ease, box-shadow .25s ease, background .3s ease;
}
.research-card:hover{ border-color: var(--kevlar-dim); box-shadow: var(--shadow-lg); }
.research-card.open{ grid-column: 1 / -1; border-color: var(--kevlar-dim); background: var(--panel); }

.research-card-head{
  padding:28px; display:flex; justify-content:space-between; align-items:flex-start; gap:16px;
  cursor:pointer; background:none; border:none; width:100%; text-align:left; color:inherit; font-family:inherit;
}
.research-card-head .rc-text{ flex:1; min-width:0; }
.research-card .tag{ font-family:var(--mono); font-size:.68rem; letter-spacing:.08em; color:var(--impact); text-transform:uppercase; margin-bottom:10px; display:block; }
.research-card h3{ font-size:1.15rem; margin-bottom:10px; }
.research-card-head p{ color: var(--ink-dim); font-size:.95rem; margin-bottom:0; }

.rc-toggle-icon{
  width:34px; height:34px; border-radius:50%; background:var(--panel-2); color:var(--ink);
  display:flex; align-items:center; justify-content:center; flex-shrink:0;
  transition: transform .3s ease, background .2s ease, color .2s ease;
}
.research-card.open .rc-toggle-icon{ transform: rotate(45deg); background: var(--kevlar); color:#fff; }
[data-theme="dark"] .research-card.open .rc-toggle-icon{ background: var(--grad); color: #04121a; }

.research-card-detail{ max-height:0; overflow:hidden; transition: max-height .45s cubic-bezier(.65,0,.35,1); }
.research-card-detail-inner{ padding: 8px 28px 36px; border-top:1px solid var(--line); margin: 0 0; }
@media (max-width:720px){ .research-card-detail-inner{ padding: 8px 20px 28px; } }

/* ============================================================
   Stats / trajectory strip — pastel-tinted alternating cards in
   light mode, plain auto-scrolling text band in dark mode
   ============================================================ */
.stat-strip{
  border-top:1px solid var(--line); border-bottom:1px solid var(--line);
  padding: 28px 0; overflow:hidden; position:relative;
  background: var(--stat-strip-bg);
  transition: background .3s ease;
}
.stat-strip-track{ display:flex; gap: var(--stat-strip-gap); width:max-content; animation: strip-scroll 32s linear infinite; }
.stat-strip:hover .stat-strip-track{ animation-play-state: paused; }
@keyframes strip-scroll{ from{ transform:translateX(0); } to{ transform:translateX(-50%); } }
.stat-strip-item{
  display:flex; flex-direction:column; gap:6px; white-space:nowrap;
  background:#fff; border-radius:16px; padding:18px 26px; border:1px solid var(--line);
  transition: background .3s ease, border-color .3s ease, padding .3s ease;
}
[data-theme="light"] .stat-strip-item:nth-child(3n+1){ background: var(--pink-soft); border-color:transparent; }
[data-theme="light"] .stat-strip-item:nth-child(3n+2){ background: var(--blue-soft); border-color:transparent; }
[data-theme="light"] .stat-strip-item:nth-child(3n+3){ background: var(--lavender-soft); border-color:transparent; }
[data-theme="dark"] .stat-strip-item{
  flex-direction: row; align-items:center; gap:14px;
  background: transparent; border: none; padding: 0;
}
.stat-strip-item .ssi-num{
  font-family:var(--display); font-weight:700; font-size:1.5rem; color: var(--kevlar);
}
[data-theme="dark"] .stat-strip-item .ssi-num{ font-size:1.3rem; }
.stat-strip-item .ssi-lbl{ font-family:var(--mono); font-size:.68rem; color: var(--ink-dim); letter-spacing:.04em; text-transform:uppercase; }