/* ==========================================================================
   Bilva — Design System & Site Styles
   Dark-mode only. Three color themes switched via html[data-theme]:
     gold  (default)  — brand gold from the Bilva leaf-mark
     blue             — deep navy / electric blue
     multi            — cyan → violet → pink → amber spectrum
   ========================================================================== */

/* ---------- Tokens: shared ---------- */
:root {
  --font-display: "Sora", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;

  --radius-sm: 10px;
  --radius: 18px;
  --radius-lg: 28px;
  --radius-pill: 999px;

  --container: 1200px;
  --gutter: 24px;

  --space-1: 4px;  --space-2: 8px;  --space-3: 12px; --space-4: 16px;
  --space-5: 24px; --space-6: 32px; --space-7: 48px; --space-8: 64px;
  --space-9: 96px; --space-10: 128px;

  --shadow-1: 0 1px 2px rgba(0,0,0,.4);
  --shadow-2: 0 10px 30px -10px rgba(0,0,0,.6);
  --shadow-3: 0 30px 60px -20px rgba(0,0,0,.7);

  --ease: cubic-bezier(.2,.7,.2,1);
  --dur: .35s;
}

/* ---------- Theme: GOLD (default) ---------- */
:root, :root[data-theme="gold"] {
  --bg: #0A0B0F;
  --bg-2: #10121A;
  --bg-3: #171A24;
  --bg-4: #1F2330;
  --line: rgba(255,255,255,.08);
  --line-strong: rgba(255,255,255,.14);
  --text: #F5F3EE;
  --text-2: #C9C6BE;
  --muted: #8F8C84;

  --accent: #D9AE4E;
  --accent-2: #F3D27C;
  --accent-3: #B8862B;
  --accent-ink: #1A1300;
  --accent-soft: rgba(217,174,78,.12);
  --glow: rgba(217,174,78,.28);

  --grad: linear-gradient(135deg, #F3D27C 0%, #D9AE4E 50%, #B8862B 100%);
  --grad-text: linear-gradient(100deg, #FBE7A8 0%, #D9AE4E 55%, #C9952F 100%);
  --grad-hero: radial-gradient(60% 55% at 70% 30%, rgba(217,174,78,.22), transparent 70%),
               radial-gradient(45% 45% at 15% 85%, rgba(184,134,43,.16), transparent 70%);

  --c1: #F3D27C; --c2: #D9AE4E; --c3: #B8862B; --c4: #E6C36A;
}

/* ---------- Theme: DARK BLUE ---------- */
:root[data-theme="blue"] {
  --bg: #050914;
  --bg-2: #0B1224;
  --bg-3: #111A33;
  --bg-4: #182342;
  --line: rgba(160,190,255,.10);
  --line-strong: rgba(160,190,255,.18);
  --text: #F1F5FF;
  --text-2: #C5CFE6;
  --muted: #8A96B5;

  --accent: #4F8DFF;
  --accent-2: #7FB0FF;
  --accent-3: #2F5FD6;
  --accent-ink: #04122B;
  --accent-soft: rgba(79,141,255,.14);
  --glow: rgba(79,141,255,.32);

  --grad: linear-gradient(135deg, #7FB0FF 0%, #4F8DFF 50%, #2F5FD6 100%);
  --grad-text: linear-gradient(100deg, #BFD7FF 0%, #4F8DFF 55%, #3B6FE0 100%);
  --grad-hero: radial-gradient(60% 55% at 70% 30%, rgba(79,141,255,.26), transparent 70%),
               radial-gradient(45% 45% at 15% 85%, rgba(34,211,238,.14), transparent 70%);

  --c1: #7FB0FF; --c2: #4F8DFF; --c3: #22D3EE; --c4: #A5B4FC;
}

/* ---------- Theme: MULTI ---------- */
:root[data-theme="multi"] {
  --bg: #0A0912;
  --bg-2: #120F1F;
  --bg-3: #1A1630;
  --bg-4: #231D3F;
  --line: rgba(200,180,255,.10);
  --line-strong: rgba(200,180,255,.18);
  --text: #F7F5FF;
  --text-2: #D2CBE8;
  --muted: #9A92B8;

  --accent: #8B5CF6;
  --accent-2: #EC4899;
  --accent-3: #06B6D4;
  --accent-ink: #FFFFFF;
  --accent-soft: rgba(139,92,246,.16);
  --glow: rgba(139,92,246,.34);

  --grad: linear-gradient(135deg, #06B6D4 0%, #8B5CF6 40%, #EC4899 75%, #F59E0B 100%);
  --grad-text: linear-gradient(100deg, #22D3EE 0%, #A78BFA 40%, #F472B6 75%, #FBBF24 100%);
  --grad-hero: radial-gradient(55% 50% at 75% 25%, rgba(139,92,246,.30), transparent 70%),
               radial-gradient(40% 40% at 20% 80%, rgba(6,182,212,.22), transparent 70%),
               radial-gradient(35% 35% at 55% 95%, rgba(236,72,153,.18), transparent 70%);

  --c1: #22D3EE; --c2: #A78BFA; --c3: #F472B6; --c4: #FBBF24;
}

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; overflow-x: hidden; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
img, svg, video { max-width: 100%; display: block; }
svg.ico { width: 1.1em; height: 1.1em; flex-shrink: 0; }
.side ul a svg { width: 14px; height: 14px; opacity: .7; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; }
input, textarea, select { font: inherit; }
h1, h2, h3, h4 { font-family: var(--font-display); letter-spacing: -.02em; line-height: 1.12; margin: 0 0 var(--space-4); font-weight: 600; }
h1 { font-size: clamp(2.5rem, 5.4vw, 4.4rem); letter-spacing: -.03em; }
h2 { font-size: clamp(1.9rem, 3.4vw, 2.9rem); }
h3 { font-size: clamp(1.2rem, 1.8vw, 1.45rem); }
h4 { font-size: 1.05rem; }
p { margin: 0 0 var(--space-4); }
.lead { font-size: clamp(1.05rem, 1.4vw, 1.25rem); color: var(--text-2); max-width: 62ch; }
.muted { color: var(--muted); }
.small { font-size: .875rem; }
.grad-text {
  background: var(--grad-text);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: var(--space-9) 0; position: relative; }
.section.tight { padding: var(--space-8) 0; }
.section-head { max-width: 760px; margin-bottom: var(--space-7); }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head.center .lead { margin-left: auto; margin-right: auto; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-display); font-size: .78rem; font-weight: 600;
  letter-spacing: .14em; text-transform: uppercase; color: var(--accent);
  margin-bottom: var(--space-4);
}
.eyebrow::before { content: ""; width: 22px; height: 2px; background: var(--grad); border-radius: 2px; }
.section-head.center .eyebrow::after { content: ""; width: 22px; height: 2px; background: var(--grad); border-radius: 2px; }
.section-head.center .eyebrow::before { display: inline-block; }
.divider { height: 1px; background: linear-gradient(90deg, transparent, var(--line-strong), transparent); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 14px 24px; border-radius: var(--radius-pill);
  font-family: var(--font-display); font-weight: 600; font-size: .95rem;
  border: 1px solid transparent; transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), background var(--dur), border-color var(--dur), color var(--dur);
  white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; transition: transform var(--dur) var(--ease); }
.btn:hover svg { transform: translateX(3px); }
.btn-primary { background: var(--grad); color: var(--accent-ink); box-shadow: 0 8px 24px -8px var(--glow); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 30px -8px var(--glow); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--line-strong); }
.btn-ghost:hover { border-color: var(--accent); background: var(--accent-soft); }
.btn-outline-grad { position: relative; background: var(--bg); color: var(--text); border: 1px solid transparent; background-clip: padding-box; }
.btn-outline-grad::before { content: ""; position: absolute; inset: -1px; border-radius: inherit; background: var(--grad); z-index: -1; }
.btn-outline-grad:hover { color: var(--accent-ink); }
.btn-outline-grad:hover::before { inset: 0; }
.btn-sm { padding: 10px 18px; font-size: .85rem; }
.btn-lg { padding: 18px 32px; font-size: 1.05rem; }
.link-arrow { display: inline-flex; align-items: center; gap: 8px; color: var(--accent); font-weight: 600; font-family: var(--font-display); font-size: .95rem; }
.link-arrow svg { width: 18px; height: 18px; transition: transform var(--dur) var(--ease); }
.link-arrow:hover svg { transform: translateX(4px); }

/* ---------- Badges / chips ---------- */
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px; border-radius: var(--radius-pill);
  background: var(--accent-soft); color: var(--accent); border: 1px solid transparent;
  font-size: .78rem; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; font-family: var(--font-display);
}
.chip.outline { background: transparent; border-color: var(--line-strong); color: var(--text-2); text-transform: none; letter-spacing: 0; font-weight: 500; }
.chip .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent); }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: blur(16px) saturate(140%); -webkit-backdrop-filter: blur(16px) saturate(140%);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; gap: var(--space-6); height: 76px; }
.brand { display: flex; align-items: center; gap: 12px; margin-right: auto; }
.brand img { width: 42px; height: 42px; object-fit: contain; filter: drop-shadow(0 0 12px var(--glow)); }
.brand .wordmark { font-family: var(--font-display); font-weight: 700; font-size: 1.45rem; letter-spacing: -.02em; }
.brand .wordmark span { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: 4px; list-style: none; margin: 0; padding: 0; }
.nav-links > li { position: relative; }
.nav-links > li > a, .nav-links > li > button {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 10px 14px; border-radius: var(--radius-pill); background: none; border: 0;
  color: var(--text-2); font-weight: 500; font-size: .95rem; transition: color var(--dur), background var(--dur);
}
.nav-links > li > a:hover, .nav-links > li > button:hover, .nav-links > li > a.active { color: var(--text); background: var(--bg-3); }
.nav-links > li > button svg { width: 14px; height: 14px; opacity: .7; transition: transform var(--dur) var(--ease); }
.nav-links > li.open > button svg { transform: rotate(180deg); }
.nav-cta { display: flex; align-items: center; gap: 10px; }
.mega {
  position: absolute; top: calc(100% + 14px); left: 50%; transform: translateX(-50%) translateY(8px);
  width: min(960px, calc(100vw - 48px));
  background: var(--bg-2); border: 1px solid var(--line-strong); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-3); padding: var(--space-6);
  display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6);
  opacity: 0; visibility: hidden; pointer-events: none; transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease), visibility var(--dur);
}
.nav-links > li.open .mega { opacity: 1; visibility: visible; pointer-events: auto; transform: translateX(-50%) translateY(0); }
.mega h5 { margin: 0 0 12px; font-family: var(--font-display); font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); }
.mega a { display: block; padding: 8px 10px; margin: 0 -10px; border-radius: var(--radius-sm); color: var(--text-2); font-size: .92rem; transition: background var(--dur), color var(--dur); }
.mega a:hover { background: var(--bg-3); color: var(--text); }
.mega .mega-foot { grid-column: 1 / -1; display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); border-top: 1px solid var(--line); padding-top: var(--space-4); margin-top: -8px; }
.mega .mega-foot .partners { display: flex; flex-wrap: wrap; gap: 8px; }
.burger { display: none; width: 44px; height: 44px; border-radius: 12px; border: 1px solid var(--line-strong); background: var(--bg-2); align-items: center; justify-content: center; }
.burger span { display: block; width: 18px; height: 2px; background: var(--text); position: relative; }
.burger span::before, .burger span::after { content: ""; position: absolute; left: 0; width: 18px; height: 2px; background: var(--text); transition: transform var(--dur); }
.burger span::before { top: -6px; } .burger span::after { top: 6px; }
.mobile-nav { display: none; }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; padding: var(--space-9) 0 var(--space-8); }
.hero::before { content: ""; position: absolute; inset: 0; background: var(--grad-hero); pointer-events: none; }
.hero .grid-bg { position: absolute; inset: 0; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 64px 64px; mask-image: radial-gradient(70% 70% at 50% 30%, #000 20%, transparent 100%); -webkit-mask-image: radial-gradient(70% 70% at 50% 30%, #000 20%, transparent 100%); opacity: .5; pointer-events: none; }
.hero-inner { position: relative; display: grid; grid-template-columns: 1.15fr .85fr; gap: var(--space-8); align-items: center; }
.hero h1 { margin-bottom: var(--space-5); }
.hero .lead { margin-bottom: var(--space-6); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: var(--space-7); }
.hero-visual { position: relative; }
.hero-visual .frame {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--line-strong); box-shadow: var(--shadow-3), 0 0 80px -20px var(--glow);
  aspect-ratio: 4 / 5;
}
.hero-visual .frame img { width: 100%; height: 100%; object-fit: cover; }
.hero-visual .frame::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 40%, color-mix(in srgb, var(--bg) 85%, transparent) 100%); }
.hero-visual .float-card {
  position: absolute; padding: 14px 16px; border-radius: 16px;
  background: color-mix(in srgb, var(--bg-2) 85%, transparent); backdrop-filter: blur(12px); border: 1px solid var(--line-strong);
  box-shadow: var(--shadow-2); font-size: .85rem; display: flex; gap: 12px; align-items: center;
}
.hero-visual .float-card .ico { width: 36px; height: 36px; border-radius: 10px; background: var(--grad); display: grid; place-items: center; color: var(--accent-ink); flex-shrink: 0; }
.hero-visual .float-card .ico svg { width: 18px; height: 18px; }
.hero-visual .float-card strong { display: block; font-family: var(--font-display); }
.hero-visual .fc-1 { left: -36px; bottom: 96px; }
.hero-visual .fc-2 { right: -28px; top: 64px; }
.trusted { display: flex; align-items: center; gap: var(--space-6); flex-wrap: wrap; }
.trusted .label { font-size: .75rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); font-family: var(--font-display); font-weight: 600; white-space: nowrap; }
.logo-row { display: flex; flex-wrap: wrap; gap: 10px 28px; align-items: center; }
.logo-row .logo-text { font-family: var(--font-display); font-weight: 700; font-size: 1.05rem; color: var(--text-2); opacity: .7; letter-spacing: -.01em; transition: opacity var(--dur), color var(--dur); }
.logo-row .logo-text:hover { opacity: 1; color: var(--text); }
.marquee { overflow: hidden; mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.marquee .track { display: flex; gap: 56px; width: max-content; animation: marquee 40s linear infinite; padding: 8px 0; }
.marquee:hover .track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- Stats ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.stat { background: var(--bg-2); padding: var(--space-6) var(--space-5); }
.stat .num { font-family: var(--font-display); font-size: clamp(2rem, 3.2vw, 2.75rem); font-weight: 700; letter-spacing: -.03em; line-height: 1; margin-bottom: 8px; }
.stat .num { background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat .lbl { color: var(--muted); font-size: .9rem; }

/* ---------- Cards ---------- */
.grid { display: grid; gap: var(--space-5); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card {
  position: relative; background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius);
  padding: var(--space-6); transition: transform var(--dur) var(--ease), border-color var(--dur), box-shadow var(--dur), background var(--dur);
  overflow: hidden;
}
.card::before { content: ""; position: absolute; inset: 0; background: radial-gradient(60% 40% at 50% 0%, var(--accent-soft), transparent 70%); opacity: 0; transition: opacity var(--dur); pointer-events: none; }
.card:hover { transform: translateY(-4px); border-color: var(--line-strong); box-shadow: var(--shadow-2); }
.card:hover::before { opacity: 1; }
.card h3 { margin-bottom: 10px; }
.card p { color: var(--text-2); font-size: .95rem; margin-bottom: 14px; }
.card .link-arrow { margin-top: auto; }
.card.flex { display: flex; flex-direction: column; }
.ico-box { width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center; margin-bottom: var(--space-5); background: var(--accent-soft); color: var(--accent); border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent); }
.ico-box svg { width: 22px; height: 22px; }
/* multi-color theme cycles icon tints */
.grid > .card:nth-child(4n+1) .ico-box { --tint: var(--c1); }
.grid > .card:nth-child(4n+2) .ico-box { --tint: var(--c2); }
.grid > .card:nth-child(4n+3) .ico-box { --tint: var(--c3); }
.grid > .card:nth-child(4n+4) .ico-box { --tint: var(--c4); }
.ico-box { color: var(--tint, var(--accent)); background: color-mix(in srgb, var(--tint, var(--accent)) 12%, transparent); border-color: color-mix(in srgb, var(--tint, var(--accent)) 30%, transparent); }
.card.glass { background: color-mix(in srgb, var(--bg-2) 70%, transparent); backdrop-filter: blur(10px); }
.card.accent-top::after { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--grad); }
.card .num-tag { position: absolute; top: 20px; right: 22px; font-family: var(--font-display); font-weight: 700; font-size: .8rem; color: var(--muted); letter-spacing: .1em; }

/* Pillars (4 capability groups) */
.pillar { background: linear-gradient(180deg, var(--bg-3), var(--bg-2)); }
.pillar ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.pillar li a { display: flex; align-items: center; gap: 10px; color: var(--text-2); font-size: .92rem; padding: 6px 0; transition: color var(--dur), transform var(--dur) var(--ease); }
.pillar li a::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); opacity: .7; }
.pillar li a:hover { color: var(--text); transform: translateX(3px); }

/* Image cards (industries, case studies) */
.img-card { position: relative; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); min-height: 320px; display: flex; align-items: flex-end; isolation: isolate; }
.img-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; transition: transform .8s var(--ease), filter .8s var(--ease); filter: saturate(.75) brightness(.8); }
.img-card::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, transparent 20%, color-mix(in srgb, var(--bg) 92%, transparent) 100%); }
.img-card:hover img { transform: scale(1.06); filter: saturate(1) brightness(.9); }
.img-card .body { padding: var(--space-5); width: 100%; }
.img-card .body h3 { margin-bottom: 6px; }
.img-card .body p { color: var(--text-2); font-size: .92rem; margin-bottom: 12px; }
.img-card .chip { margin-bottom: 12px; }
.img-card.tall { min-height: 420px; }
.img-card::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 3px; background: var(--grad); transform: scaleX(0); transform-origin: left; transition: transform .5s var(--ease); }
.img-card:hover::after { transform: scaleX(1); }

.case-card { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; transition: transform var(--dur) var(--ease), border-color var(--dur), box-shadow var(--dur); }
.case-card:hover { transform: translateY(-4px); border-color: var(--line-strong); box-shadow: var(--shadow-2); }
.case-card .media { aspect-ratio: 16 / 10; overflow: hidden; }
.case-card .media img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.8); transition: transform .8s var(--ease); }
.case-card:hover .media img { transform: scale(1.05); }
.case-card .body { padding: var(--space-5); display: flex; flex-direction: column; gap: 10px; flex: 1; }
.case-card .meta { display: flex; gap: 8px; flex-wrap: wrap; }
.case-card h3 { margin: 0; font-size: 1.15rem; }
.case-card p { color: var(--text-2); font-size: .92rem; margin: 0; }
.case-card .link-arrow { margin-top: auto; padding-top: 8px; }
.case-card.feature { grid-row: span 2; }
.case-card.feature .media { aspect-ratio: auto; flex: 1; min-height: 260px; }
.case-card.feature h3 { font-size: 1.6rem; }

/* Tabs */
.tabs { display: grid; grid-template-columns: 300px 1fr; gap: var(--space-6); align-items: start; }
.tab-list { display: grid; gap: 6px; }
.tab-btn { text-align: left; padding: 16px 18px; border-radius: 14px; border: 1px solid var(--line); background: var(--bg-2); display: flex; align-items: center; gap: 14px; transition: border-color var(--dur), background var(--dur), transform var(--dur) var(--ease); }
.tab-btn .ico-box { margin: 0; width: 40px; height: 40px; border-radius: 12px; }
.tab-btn strong { display: block; font-family: var(--font-display); font-size: .98rem; }
.tab-btn small { color: var(--muted); font-size: .8rem; }
.tab-btn:hover { border-color: var(--line-strong); transform: translateX(3px); }
.tab-btn.active { border-color: var(--accent); background: var(--accent-soft); }
.tab-panel { display: none; background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: var(--space-7); position: relative; overflow: hidden; }
.tab-panel.active { display: grid; grid-template-columns: 1.1fr .9fr; gap: var(--space-6); animation: fade .4s var(--ease); }
.tab-panel .media { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); min-height: 280px; }
.tab-panel .media img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.8); }
.tab-panel ul.checks { list-style: none; margin: 0 0 var(--space-5); padding: 0; display: grid; gap: 10px; }
.tab-panel ul.checks li { display: flex; gap: 12px; align-items: flex-start; color: var(--text-2); font-size: .95rem; }
.tab-panel ul.checks li svg { width: 18px; height: 18px; color: var(--accent); flex-shrink: 0; margin-top: 3px; }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* Testimonials */
.quote { display: flex; flex-direction: column; gap: var(--space-5); }
.quote .stars { display: flex; gap: 3px; color: var(--accent); }
.quote .stars svg { width: 16px; height: 16px; }
.quote blockquote { margin: 0; font-size: 1.02rem; color: var(--text); line-height: 1.6; }
.quote .who { display: flex; align-items: center; gap: 12px; margin-top: auto; }
.quote .avatar { width: 42px; height: 42px; border-radius: 50%; background: var(--grad); display: grid; place-items: center; color: var(--accent-ink); font-family: var(--font-display); font-weight: 700; font-size: .85rem; }
.quote .who strong { display: block; font-family: var(--font-display); font-size: .95rem; }
.quote .who span { color: var(--muted); font-size: .82rem; }

/* Values / split */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-8); align-items: center; }
.split .media { position: relative; border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--line-strong); box-shadow: var(--shadow-3); }
.split .media img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4/3; filter: saturate(.8); }
.split .media .badge-float { position: absolute; left: 20px; bottom: 20px; padding: 14px 18px; border-radius: 14px; background: color-mix(in srgb, var(--bg-2) 85%, transparent); border: 1px solid var(--line-strong); backdrop-filter: blur(10px); }
.split .media .badge-float strong { display: block; font-family: var(--font-display); font-size: 1.4rem; background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
.split .media .badge-float span { color: var(--muted); font-size: .82rem; }
.value-list { display: grid; gap: var(--space-4); margin: var(--space-6) 0 0; padding: 0; list-style: none; }
.value-list li { display: flex; gap: 16px; align-items: flex-start; }
.value-list .ico-box { margin: 0; width: 42px; height: 42px; border-radius: 12px; flex-shrink: 0; }
.value-list strong { display: block; font-family: var(--font-display); margin-bottom: 2px; }
.value-list p { margin: 0; color: var(--text-2); font-size: .93rem; }

/* Process steps */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-5); counter-reset: step; }
.step { position: relative; padding: var(--space-6) var(--space-5); background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); }
.step::before { counter-increment: step; content: "0" counter(step); font-family: var(--font-display); font-weight: 700; font-size: 2.2rem; letter-spacing: -.03em; background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; display: block; margin-bottom: 12px; line-height: 1; }
.step h4 { margin-bottom: 6px; }
.step p { color: var(--text-2); font-size: .92rem; margin: 0; }

/* CTA band */
.cta-band { position: relative; border-radius: var(--radius-lg); padding: var(--space-8) var(--space-7); overflow: hidden; border: 1px solid var(--line-strong); background: var(--bg-2); isolation: isolate; }
.cta-band::before { content: ""; position: absolute; inset: 0; background: var(--grad-hero); z-index: -1; }
.cta-band::after { content: ""; position: absolute; inset: -1px; border-radius: inherit; padding: 1px; background: var(--grad); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; opacity: .6; pointer-events: none; }
.cta-band .inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-6); flex-wrap: wrap; }
.cta-band h2 { margin-bottom: 8px; }
.cta-band p { margin: 0; color: var(--text-2); max-width: 56ch; }
.cta-band .actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* Contact form */
.form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form .full { grid-column: 1 / -1; }
.field label { display: block; font-size: .8rem; font-weight: 600; letter-spacing: .04em; color: var(--muted); margin-bottom: 6px; text-transform: uppercase; font-family: var(--font-display); }
.field input, .field textarea, .field select {
  width: 100%; padding: 14px 16px; border-radius: 12px; background: var(--bg-3); border: 1px solid var(--line); color: var(--text);
  outline: none; transition: border-color var(--dur), box-shadow var(--dur);
}
.field input::placeholder, .field textarea::placeholder { color: var(--muted); }
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.field textarea { min-height: 140px; resize: vertical; }
.contact-info { display: grid; gap: var(--space-4); }
.contact-info .row { display: flex; gap: 14px; align-items: flex-start; padding: var(--space-4) 0; border-bottom: 1px solid var(--line); }
.contact-info .row:last-child { border-bottom: 0; }
.contact-info .row .ico-box { width: 42px; height: 42px; border-radius: 12px; margin: 0; flex-shrink: 0; }
.contact-info strong { display: block; font-family: var(--font-display); font-size: .95rem; }
.contact-info a, .contact-info span { color: var(--text-2); }
.contact-info a:hover { color: var(--accent); }

/* Page hero (inner pages) */
.page-hero { position: relative; padding: var(--space-8) 0 var(--space-7); overflow: hidden; }
.page-hero::before { content: ""; position: absolute; inset: 0; background: var(--grad-hero); pointer-events: none; }
.page-hero .container { position: relative; }
.page-hero h1 { font-size: clamp(2.2rem, 4.6vw, 3.6rem); max-width: 18ch; }
.crumbs { display: flex; gap: 8px; align-items: center; color: var(--muted); font-size: .85rem; margin-bottom: var(--space-5); }
.crumbs a:hover { color: var(--text); }
.crumbs span { opacity: .5; }
.page-hero.with-image { min-height: 440px; display: flex; align-items: flex-end; }
.page-hero.with-image .bg { position: absolute; inset: 0; z-index: -1; }
.page-hero.with-image .bg img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.6) brightness(.5); }
.page-hero.with-image .bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, color-mix(in srgb, var(--bg) 50%, transparent), var(--bg) 100%); }

/* Sidebar layout (service detail) */
.with-side { display: grid; grid-template-columns: 1fr 340px; gap: var(--space-8); align-items: start; }
.side { position: sticky; top: 100px; display: grid; gap: var(--space-5); }
.side .card { padding: var(--space-5); }
.side ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; }
.side ul a { display: flex; justify-content: space-between; align-items: center; padding: 10px 12px; border-radius: 10px; color: var(--text-2); font-size: .92rem; transition: background var(--dur), color var(--dur); }
.side ul a:hover, .side ul a.active { background: var(--accent-soft); color: var(--text); }
.side ul a.active { border-left: 2px solid var(--accent); }
.prose h2 { font-size: clamp(1.5rem, 2.4vw, 2rem); margin-top: var(--space-7); }
.prose h2:first-child { margin-top: 0; }
.prose p { color: var(--text-2); }
.feature-list { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: var(--space-5) 0; }
.feature-list .card { padding: var(--space-5); }
.feature-list .card h4 { margin-bottom: 4px; }
.feature-list .card p { margin: 0; font-size: .9rem; }

/* Team / logo grid */
.partner-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.partner { display: grid; place-items: center; padding: 26px 16px; border: 1px solid var(--line); border-radius: 14px; background: var(--bg-2); font-family: var(--font-display); font-weight: 700; color: var(--text-2); letter-spacing: -.01em; transition: border-color var(--dur), color var(--dur), transform var(--dur) var(--ease); }
.partner:hover { border-color: var(--accent); color: var(--text); transform: translateY(-3px); }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); background: var(--bg-2); margin-top: var(--space-9); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: var(--space-7); padding: var(--space-8) 0 var(--space-7); }
.footer-grid h5 { font-family: var(--font-display); font-size: .78rem; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); margin: 0 0 14px; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.footer-grid ul a { color: var(--text-2); font-size: .92rem; transition: color var(--dur); }
.footer-grid ul a:hover { color: var(--text); }
.footer-brand p { color: var(--text-2); max-width: 40ch; font-size: .95rem; }
.socials { display: flex; gap: 8px; margin-top: var(--space-4); }
.socials a { width: 38px; height: 38px; border-radius: 10px; border: 1px solid var(--line-strong); display: grid; place-items: center; color: var(--text-2); transition: border-color var(--dur), color var(--dur), background var(--dur); }
.socials a:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }
.socials svg { width: 16px; height: 16px; }
.footer-bottom { border-top: 1px solid var(--line); padding: var(--space-5) 0; display: flex; justify-content: space-between; align-items: center; gap: var(--space-4); flex-wrap: wrap; color: var(--muted); font-size: .85rem; }
.footer-bottom .links { display: flex; gap: 18px; }
.footer-bottom .links a:hover { color: var(--text); }

/* ---------- Theme switcher ---------- */
.theme-switch {
  position: fixed; right: 20px; bottom: 20px; z-index: 200;
  display: flex; align-items: center; gap: 6px; padding: 6px 8px 6px 12px;
  background: color-mix(in srgb, var(--bg-2) 88%, transparent); border: 1px solid var(--line-strong); border-radius: var(--radius-pill);
  backdrop-filter: blur(12px); box-shadow: var(--shadow-2);
}
.theme-switch .lbl { font-family: var(--font-display); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-right: 4px; }
.theme-switch button { width: 30px; height: 30px; border-radius: 50%; border: 2px solid transparent; padding: 0; background: none; display: grid; place-items: center; transition: transform var(--dur) var(--ease), border-color var(--dur); }
.theme-switch button i { display: block; width: 18px; height: 18px; border-radius: 50%; }
.theme-switch button[data-set="gold"] i { background: linear-gradient(135deg, #F3D27C, #B8862B); }
.theme-switch button[data-set="blue"] i { background: linear-gradient(135deg, #7FB0FF, #2F5FD6); }
.theme-switch button[data-set="multi"] i { background: conic-gradient(#06B6D4, #8B5CF6, #EC4899, #F59E0B, #06B6D4); }
.theme-switch button:hover { transform: scale(1.12); }
.theme-switch button.active { border-color: var(--text); }

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal-stagger > * { opacity: 0; transform: translateY(18px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.reveal-stagger.in > * { opacity: 1; transform: none; }
.reveal-stagger.in > *:nth-child(2) { transition-delay: .07s; }
.reveal-stagger.in > *:nth-child(3) { transition-delay: .14s; }
.reveal-stagger.in > *:nth-child(4) { transition-delay: .21s; }
.reveal-stagger.in > *:nth-child(5) { transition-delay: .28s; }
.reveal-stagger.in > *:nth-child(6) { transition-delay: .35s; }
.reveal-stagger.in > *:nth-child(n+7) { transition-delay: .4s; }
@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal-stagger > * { opacity: 1; transform: none; transition: none; }
  .marquee .track { animation: none; }
}
html.no-motion .reveal, html.no-motion .reveal-stagger > * { opacity: 1; transform: none; transition: none; }
html.no-motion .marquee .track { animation: none; }

/* ---------- Design-template page helpers ---------- */
.swatches { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
.swatch { border-radius: 14px; border: 1px solid var(--line); overflow: hidden; background: var(--bg-2); }
.swatch .color { height: 84px; }
.swatch .info { padding: 10px 12px; font-size: .78rem; }
.swatch .info strong { display: block; font-family: var(--font-display); font-size: .82rem; }
.swatch .info code { color: var(--muted); font-size: .74rem; }
.type-scale > div { display: grid; grid-template-columns: 140px 1fr; gap: 20px; align-items: baseline; padding: 16px 0; border-bottom: 1px solid var(--line); }
.type-scale code { color: var(--muted); font-size: .78rem; }
.theme-preview { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); }
.tp { border-radius: var(--radius); border: 1px solid var(--line-strong); overflow: hidden; }
.tp .top { height: 120px; position: relative; }
.tp .top::after { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px); background-size: 24px 24px; }
.tp .body { padding: 18px; }
.tp .body strong { display: block; font-family: var(--font-display); margin-bottom: 4px; }
.tp .body span { color: var(--muted); font-size: .85rem; }
.tp .dots { display: flex; gap: 6px; margin-top: 12px; }
.tp .dots i { width: 18px; height: 18px; border-radius: 50%; display: block; border: 1px solid rgba(255,255,255,.15); }
.component-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.spec-table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.spec-table th, .spec-table td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); }
.spec-table th { color: var(--accent); font-family: var(--font-display); font-size: .76rem; letter-spacing: .1em; text-transform: uppercase; }
.spec-table code { color: var(--text-2); background: var(--bg-3); padding: 2px 6px; border-radius: 6px; font-size: .82rem; }
.logo-usage { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.logo-usage > div { border-radius: 14px; border: 1px solid var(--line); display: grid; place-items: center; padding: 32px; gap: 10px; }
.logo-usage img { width: 64px; }
.note { border-left: 3px solid var(--accent); background: var(--accent-soft); padding: 14px 18px; border-radius: 0 12px 12px 0; color: var(--text-2); font-size: .92rem; }

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { max-width: 520px; }
  .hero-visual .fc-1 { left: 12px; } .hero-visual .fc-2 { right: 12px; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .partner-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .tabs { grid-template-columns: 1fr; }
  .tab-list { grid-template-columns: repeat(2, 1fr); }
  .with-side { grid-template-columns: 1fr; }
  .side { position: static; }
  .swatches { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 900px) {
  .nav-links, .nav-cta .btn { display: none; }
  .burger { display: inline-flex; }
  .mobile-nav { display: block; position: fixed; inset: 76px 0 0 0; background: var(--bg); z-index: 90; padding: var(--space-5) var(--gutter); overflow-y: auto; transform: translateX(100%); visibility: hidden; transition: transform var(--dur) var(--ease), visibility var(--dur); }
  .mobile-nav.open { transform: none; visibility: visible; }
  .mobile-nav a { display: block; padding: 14px 4px; border-bottom: 1px solid var(--line); font-family: var(--font-display); font-size: 1.1rem; }
  .mobile-nav .sub a { font-family: var(--font-body); font-size: .95rem; color: var(--text-2); padding: 10px 4px 10px 18px; }
  .mobile-nav .btn { display: inline-flex; margin-top: var(--space-5); }
  .grid-3, .grid-2 { grid-template-columns: 1fr 1fr; }
  .split { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .tab-panel.active { grid-template-columns: 1fr; }
  .theme-preview { grid-template-columns: 1fr; }
  .logo-usage { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .section { padding: var(--space-8) 0; }
  .grid-3, .grid-2, .grid-4, .steps, .tab-list, .form, .feature-list { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .partner-grid, .swatches { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-6); }
  .hero { padding-top: var(--space-7); }
  .hero-visual .float-card { display: none; }
  .cta-band { padding: var(--space-7) var(--space-5); }
  .case-card.feature { grid-row: auto; }
  .type-scale > div { grid-template-columns: 1fr; gap: 4px; }
  .theme-switch { right: 12px; bottom: 12px; }
  .theme-switch .lbl { display: none; }
}