/* ══════════════════════════════════════════════════════════════
   Aitronos UI Kit — landing site
   Aesthetic: "developer's blueprint" — deep navy canvas, blueprint
   grid, brand-blue accents, the chat-skin system as the centrepiece.
   Standalone site: brand values inlined (no kit import by design).
   ══════════════════════════════════════════════════════════════ */
:root {
  --brand-300: #8fb6f2;
  --brand-400: #6ea0 ;
  --brand-500: #558dea;
  --brand-600: #2a71e5;
  --brand-700: #194489;
  --brand-900: #0e1f3d;

  --bg-0: #060912;          /* deepest */
  --bg-1: #0a0f1c;          /* page */
  --bg-2: #0f1626;          /* panels */
  --bg-3: #141d31;          /* raised */
  --line: #1e2942;
  --line-2: #2b3a5c;

  --ink-0:  #f4f7fc;        /* headings */
  --ink-1:  #c5cfe0;        /* body */
  --ink-2:  #8b97ad;        /* muted */
  --ink-3:  #5d6880;        /* faint */

  --success: #34d18a;
  --warning: #f6b13d;
  --danger:  #f5615c;

  --radius: 14px;
  --radius-sm: 9px;
  --radius-lg: 22px;

  --ring: 0 0 0 1px var(--line);
  --shadow: 0 30px 70px -30px rgba(0,0,0,.7);
  --shadow-blue: 0 30px 80px -30px rgba(42,113,229,.5);

  --ease: cubic-bezier(.4,0,.2,1);
  --spring: cubic-bezier(.16,1,.3,1);

  --maxw: 1180px;
  --font-display: "Bricolage Grotesque", "Geist", sans-serif;
  --font: "Geist", system-ui, sans-serif;
  --mono: "Geist Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
  font-family: var(--font);
  background: var(--bg-1);
  color: var(--ink-1);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
code { font-family: var(--mono); font-size: .88em; }
::selection { background: var(--brand-600); color: #fff; }

/* ─── Backdrop: blueprint grid + glows + noise ─── */
.backdrop { position: fixed; inset: 0; z-index: -1; overflow: hidden; background: var(--bg-1); }
.grid-layer {
  position: absolute; inset: -2px;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 56px 56px;
  opacity: .35;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 30%, transparent 80%);
}
.glow { position: absolute; border-radius: 50%; filter: blur(120px); }
.glow-a { width: 720px; height: 720px; top: -280px; left: 50%; transform: translateX(-50%);
  background: radial-gradient(circle, rgba(42,113,229,.42), transparent 68%); }
.glow-b { width: 520px; height: 520px; top: 900px; right: -180px;
  background: radial-gradient(circle, rgba(25,68,137,.36), transparent 70%); }
.noise {
  position: absolute; inset: 0; opacity: .04; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ─── Nav ─── */
.nav {
  position: sticky; top: 0; z-index: 60;
  display: flex; align-items: center; justify-content: space-between;
  max-width: var(--maxw); margin: 0 auto; padding: 18px 24px;
}
.nav::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: color-mix(in srgb, var(--bg-1) 78%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 11px; }
.brand-mark { width: 30px; height: 30px; color: var(--brand-500); flex-shrink: 0; }
.brand-mark.sm { width: 24px; height: 24px; }
.brand-text { font: 600 17px/1 var(--font); color: var(--ink-0); letter-spacing: -.01em; }
.brand-text strong { font-weight: 700; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links > a:not(.btn) { color: var(--ink-2); font-size: 14.5px; font-weight: 500; transition: color .15s var(--ease); }
.nav-links > a:not(.btn):hover { color: var(--ink-0); }
.nav-sb .arr { color: var(--brand-500); margin-left: 2px; }

/* ─── Buttons ─── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 20px; border-radius: var(--radius-sm);
  font: 600 14.5px var(--font); cursor: pointer; border: 1px solid transparent;
  transition: transform .18s var(--spring), box-shadow .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
  white-space: nowrap;
}
.btn .arr { transition: transform .2s var(--spring); }
.btn:hover .arr { transform: translate(2px,-2px); }
.btn-sm { padding: 8px 15px; font-size: 14px; }
.btn-lg { padding: 14px 24px; font-size: 15.5px; }
.btn-block { width: 100%; }
.btn-primary { background: var(--brand-600); color: #fff; box-shadow: 0 8px 24px -10px rgba(42,113,229,.8); }
.btn-primary:hover { background: var(--brand-500); transform: translateY(-2px); box-shadow: 0 14px 34px -12px rgba(42,113,229,.9); }
.btn-line { background: transparent; color: var(--ink-0); border-color: var(--line-2); }
.btn-line:hover { border-color: var(--brand-500); color: #fff; transform: translateY(-2px); background: rgba(42,113,229,.08); }
.btn-ghost-d { background: rgba(255,255,255,.04); color: var(--ink-1); border-color: var(--line); }
.btn-ghost-d:hover { background: rgba(255,255,255,.08); color: #fff; }

/* ─── Hero ─── */
.hero {
  max-width: var(--maxw); margin: 0 auto; padding: 70px 24px 50px;
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center;
}
.tag {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 13px; margin-bottom: 26px;
  border-radius: 999px; background: rgba(42,113,229,.12); border: 1px solid rgba(42,113,229,.3);
  font: 600 12.5px var(--mono); color: var(--brand-300); letter-spacing: .02em;
}
.tag-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--brand-500); box-shadow: 0 0 0 4px rgba(42,113,229,.2); animation: pulse 2.4s var(--ease) infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.4} }
.hero-title { font: 800 clamp(40px,5.6vw,72px)/1.02 var(--font-display); color: var(--ink-0); letter-spacing: -.03em; }
.hero-title .line { display: block; }
.hero-title em { font-style: italic; font-weight: 500; color: var(--ink-1); }
.hero-title .accent {
  background: linear-gradient(100deg, var(--brand-500), var(--brand-300) 60%, var(--brand-500));
  background-size: 200% auto; -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: shine 7s var(--ease) infinite alternate;
}
@keyframes shine { to { background-position: 100% center; } }
.hero-lede { margin-top: 24px; font-size: 18px; color: var(--ink-2); max-width: 520px; }
.hero-lede strong { color: var(--ink-0); font-weight: 600; }
.hero-cta { display: flex; gap: 13px; margin-top: 32px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 34px; margin-top: 44px; flex-wrap: wrap; }
.hero-stats dt { font: 800 26px/1 var(--font-display); color: var(--ink-0); letter-spacing: -.02em; }
.hero-stats dd { margin-top: 5px; font-size: 13px; color: var(--ink-3); font-family: var(--mono); }

/* hero floating surfaces */
.hero-stage { position: relative; height: 440px; }
.surface {
  position: absolute; border-radius: var(--radius); overflow: hidden;
  background: var(--bg-2); border: 1px solid var(--line-2); box-shadow: var(--shadow);
}
.surface-back {
  top: 0; right: 8%; width: 300px; transform: rotate(4deg);
  animation: float-a 9s var(--ease) infinite alternate;
}
.surface-front {
  bottom: 0; left: 0; width: 360px; transform: rotate(-3deg);
  box-shadow: var(--shadow-blue); animation: float-b 8s var(--ease) infinite alternate;
}
@keyframes float-a { to { transform: rotate(4deg) translateY(-16px); } }
@keyframes float-b { to { transform: rotate(-3deg) translateY(14px); } }
.srf-bar { display: flex; align-items: center; gap: 6px; padding: 9px 12px; background: var(--bg-3); border-bottom: 1px solid var(--line); }
.srf-bar span { width: 8px; height: 8px; border-radius: 50%; background: var(--line-2); }
.srf-bar i { margin-left: 8px; font: 500 11px var(--mono); color: var(--ink-3); font-style: normal; }

/* ─── Strip ─── */
.strip {
  max-width: var(--maxw); margin: 0 auto; padding: 22px 24px;
  display: flex; align-items: center; justify-content: center; gap: 22px; flex-wrap: wrap;
  font: 500 13.5px var(--mono); color: var(--ink-3);
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.strip code { color: var(--brand-300); }
.strip .sep { width: 4px; height: 4px; border-radius: 50%; background: var(--line-2); }

/* ─── Section headings ─── */
.kicker { display: inline-block; font: 600 12.5px var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--brand-400); margin-bottom: 16px; }
.sec-head, .skins-head { text-align: center; max-width: 720px; margin: 0 auto 50px; }
.sec-head h2, .skins-head h2 { font: 800 clamp(28px,3.8vw,44px)/1.08 var(--font-display); color: var(--ink-0); letter-spacing: -.025em; }
.sec-head p, .skins-head p { margin-top: 16px; font-size: 17px; color: var(--ink-2); }
.skins-head p em { color: var(--ink-1); font-style: italic; }
.skins-head p strong { color: var(--ink-0); }
.hl { background: linear-gradient(100deg, var(--brand-500), var(--brand-300)); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ═══ SKIN SYSTEM (the differentiator) ═══ */
.skins { max-width: var(--maxw); margin: 0 auto; padding: 100px 24px; }
.skin-showcase { display: grid; grid-template-columns: 300px 1fr; gap: 24px; align-items: start; }

.skin-list { display: flex; flex-direction: column; gap: 8px; }
.skin-tab {
  display: flex; align-items: center; gap: 12px; padding: 16px 18px; width: 100%;
  background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius);
  color: var(--ink-2); cursor: pointer; text-align: left;
  transition: border-color .2s var(--ease), background .2s var(--ease), transform .2s var(--spring);
}
.skin-tab:hover { border-color: var(--line-2); color: var(--ink-1); }
.skin-tab.is-active { background: var(--bg-3); border-color: var(--brand-600); color: var(--ink-0); box-shadow: 0 0 0 1px var(--brand-600), 0 16px 40px -24px rgba(42,113,229,.7); }
.st-ic { width: 32px; height: 32px; display: grid; place-items: center; border-radius: 8px; background: rgba(42,113,229,.14); color: var(--brand-400); font-size: 16px; flex-shrink: 0; }
.skin-tab.is-active .st-ic { background: var(--brand-600); color: #fff; }
.st-name { font-weight: 600; font-size: 15px; }
.st-meta { margin-left: auto; font: 500 12px var(--mono); color: var(--ink-3); }
.skin-more { margin-top: 8px; padding: 14px 18px; font: 500 12.5px var(--mono); color: var(--ink-3); border: 1px dashed var(--line-2); border-radius: var(--radius); }

.skin-preview { border-radius: var(--radius-lg); overflow: hidden; background: var(--bg-2); border: 1px solid var(--line-2); box-shadow: var(--shadow); }
.sp-chrome { display: flex; align-items: center; gap: 7px; padding: 13px 16px; background: var(--bg-3); border-bottom: 1px solid var(--line); }
.sp-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--line-2); }
.sp-dot:nth-child(1){ background:#f5615c; } .sp-dot:nth-child(2){ background:#f6b13d; } .sp-dot:nth-child(3){ background:#34d18a; }
.sp-title { margin-left: 8px; font: 500 13px var(--mono); color: var(--ink-2); }
.sp-sb { margin-left: auto; font: 600 13px var(--font); color: var(--brand-400); transition: color .15s; }
.sp-sb:hover { color: var(--brand-300); }
.sp-body { padding: 28px; min-height: 360px; display: flex; flex-direction: column; gap: 18px; }
.chat-msg { align-self: flex-end; max-width: 78%; padding: 12px 16px; border-radius: 16px 16px 4px 16px; background: var(--brand-600); color: #fff; font-size: 14.5px; box-shadow: 0 10px 30px -16px rgba(42,113,229,.8); }

.skin-panel { display: none; animation: panel-in .4s var(--spring); }
.skin-panel.is-active { display: block; }
@keyframes panel-in { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

/* mini mail */
.mini-mail { background: var(--bg-1); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.mini-mail.big { padding: 20px; }
.mm-row { display: flex; align-items: center; gap: 12px; padding: 9px 0; border-bottom: 1px solid var(--line); }
.mm-row label { width: 56px; font: 500 12px var(--mono); color: var(--ink-3); }
.chip { padding: 4px 11px; border-radius: 999px; background: rgba(42,113,229,.14); color: var(--brand-300); font-size: 13px; font-weight: 500; }
.mm-subj { color: var(--ink-0); font-weight: 500; font-size: 14.5px; }
.mm-body { padding: 14px 0; display: flex; flex-direction: column; gap: 10px; }
.mm-body p { height: 9px; border-radius: 5px; background: var(--line); }
.mm-body p:first-child { width: 90px; background: var(--line-2); }
.mm-body p.short { width: 55%; } .mm-body p.med { width: 75%; }
.mm-foot { display: flex; align-items: center; gap: 10px; padding-top: 14px; border-top: 1px solid var(--line); }
.mm-spacer { flex: 1; }

/* mini calendar */
.mini-cal { background: var(--bg-1); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.mini-cal.big { padding: 20px; }
.mc-head { display: flex; align-items: center; gap: 10px; font: 600 15px var(--font); color: var(--ink-0); margin-bottom: 14px; }
.mc-pill { font: 500 11px var(--mono); color: var(--brand-300); background: rgba(42,113,229,.14); padding: 3px 9px; border-radius: 999px; }
.mc-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; }
.mc-grid i { text-align: center; font: 600 11px var(--mono); color: var(--ink-3); font-style: normal; padding: 4px 0; }
.mc-grid b { text-align: center; font: 500 13px var(--font); color: var(--ink-2); padding: 8px 0; border-radius: 8px; transition: background .2s; }
.mc-grid b.ev { background: var(--brand-600); color: #fff; }
.mc-grid b.ev2 { background: rgba(42,113,229,.22); color: var(--brand-300); }
.mc-event { margin-top: 14px; padding: 11px 14px; border-left: 3px solid var(--brand-500); background: rgba(42,113,229,.1); border-radius: 0 8px 8px 0; font-size: 13.5px; color: var(--ink-1); }

/* mini ticket */
.mini-ticket { background: var(--bg-1); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.mt-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.mt-id { font: 600 12px var(--mono); color: var(--ink-3); }
.mt-title { font: 600 17px var(--font); color: var(--ink-0); margin-bottom: 14px; }
.mt-meta { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.mt-av { width: 26px; height: 26px; border-radius: 50%; background: var(--brand-600); color: #fff; display: grid; place-items: center; font: 600 11px var(--font); }
.mt-chip { padding: 4px 10px; border-radius: 7px; background: var(--bg-3); border: 1px solid var(--line); font: 500 12px var(--mono); color: var(--ink-2); }
.mt-bar { height: 7px; border-radius: 999px; background: var(--line); overflow: hidden; }
.mt-bar i { display: block; height: 100%; background: linear-gradient(90deg, var(--brand-600), var(--brand-400)); border-radius: 999px; }

/* mini files */
.mini-files { background: var(--bg-1); border: 1px solid var(--line); border-radius: var(--radius); padding: 8px; }
.mf-row { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-radius: 9px; font-size: 14px; color: var(--ink-1); transition: background .2s; }
.mf-row:hover { background: var(--bg-3); }
.mf-ic { width: 38px; height: 30px; border-radius: 6px; display: grid; place-items: center; font: 700 9px var(--mono); color: #fff; flex-shrink: 0; }
.mf-ic.doc { background: var(--brand-600); } .mf-ic.img { background: var(--success); } .mf-ic.sheet { background: var(--warning); }
.mf-sz { margin-left: auto; font: 500 12px var(--mono); color: var(--ink-3); }

/* mini trip / itinerary */
.mini-trip { background: var(--bg-1); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }
.trip-head { display: flex; align-items: baseline; justify-content: space-between; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.trip-place { font: 800 20px var(--font-display); color: var(--ink-0); }
.trip-dates { font: 500 12.5px var(--mono); color: var(--brand-300); }
.trip-day { padding-top: 14px; }
.trip-d { display: inline-block; font: 600 11px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 12px; }
.trip-items { display: flex; flex-direction: column; gap: 10px; }
.trip-item { display: flex; align-items: center; gap: 12px; padding: 10px 12px; background: var(--bg-3); border: 1px solid var(--line); border-radius: 10px; }
.trip-item b { display: block; font: 600 14px var(--font); color: var(--ink-0); }
.trip-item i { font: 500 12px var(--mono); color: var(--ink-3); font-style: normal; }
.ti-ic { width: 32px; height: 32px; display: grid; place-items: center; border-radius: 8px; font-size: 15px; flex-shrink: 0; }
.ti-ic.hotel { background: rgba(42,113,229,.18); color: var(--brand-300); }
.ti-ic.food { background: rgba(246,177,61,.16); color: var(--warning); }
.ti-ic.place { background: rgba(52,209,138,.16); color: var(--success); }
.trip-foot { display: flex; align-items: center; gap: 12px; margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--line); }
.trip-route { font: 500 12px var(--mono); color: var(--ink-3); }

/* skin gallery — real grids */
.families-head { text-align: center; max-width: 700px; margin: 88px auto 40px; }
.families-head h3 { font: 800 clamp(22px,2.8vw,32px) var(--font-display); color: var(--ink-0); letter-spacing: -.02em; }
.families-head p { margin-top: 12px; color: var(--ink-2); font-size: 16px; }
.families-head strong { color: var(--brand-300); }

.gallery { margin-bottom: 34px; }
.gal-label { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; font: 700 16px var(--font-display); color: var(--ink-0); }
.gal-tag { padding: 4px 10px; border-radius: 7px; background: var(--brand-600); color: #fff; font: 600 11px var(--mono); letter-spacing: .04em; text-transform: uppercase; }
.gal-tag.tag-commerce { background: var(--success); color: #06281a; }
.gal-skin { margin-left: auto; font: 500 12px var(--mono); color: var(--ink-3); }
.card-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
.card-grid.grid-4 { grid-template-columns: repeat(4,1fr); }

/* hotel / bookable card */
.vcard { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: border-color .25s var(--ease), transform .25s var(--spring), box-shadow .25s var(--ease); }
.vcard:hover { border-color: var(--line-2); transform: translateY(-4px); box-shadow: var(--shadow); }
.vcard-img { position: relative; height: 130px; }
.img-a { background: linear-gradient(135deg,#2a71e5,#194489); }
.img-b { background: linear-gradient(135deg,#3a8f7a,#15403a); }
.img-c { background: linear-gradient(135deg,#7a5cff,#2d2a6e); }
.vcard-fav { position: absolute; top: 10px; right: 10px; width: 28px; height: 28px; display: grid; place-items: center; border-radius: 50%; background: rgba(0,0,0,.35); color: #fff; font-size: 13px; backdrop-filter: blur(4px); }
.vcard-price { position: absolute; bottom: 10px; left: 10px; padding: 5px 11px; border-radius: 8px; background: rgba(0,0,0,.5); color: #fff; font: 700 14px var(--font); backdrop-filter: blur(4px); }
.vcard-price i { font: 500 11px var(--mono); font-style: normal; opacity: .8; }
.vcard-body { padding: 15px; }
.vcard-row { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
.vcard-row h5 { font: 700 16px var(--font-display); color: var(--ink-0); }
.vcard-rate { font: 600 13px var(--font); color: var(--warning); white-space: nowrap; }
.vcard-sub { margin: 4px 0 12px; font-size: 13px; color: var(--ink-3); }
.vcard-amen { display: flex; gap: 6px; margin-bottom: 14px; }
.vcard-amen span { padding: 3px 9px; border-radius: 6px; background: var(--bg-3); border: 1px solid var(--line); font: 500 11px var(--mono); color: var(--ink-2); }
.vcard-cta { width: 100%; justify-content: center; }

/* product card */
.pcard { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; transition: border-color .25s var(--ease), transform .25s var(--spring); }
.pcard:hover { border-color: var(--line-2); transform: translateY(-4px); }
.pcard-img { position: relative; height: 100px; border-radius: 10px; margin-bottom: 13px; }
.pimg-a { background: linear-gradient(135deg,#1e2942,#2b3a5c); }
.pimg-b { background: linear-gradient(135deg,#26334d,#11151f); }
.pimg-c { background: linear-gradient(135deg,#2a3d63,#1a2540); }
.pimg-d { background: linear-gradient(135deg,#234e45,#13302a); }
.pcard-tag { position: absolute; top: 9px; left: 9px; padding: 3px 9px; border-radius: 6px; background: var(--brand-600); color: #fff; font: 700 10px var(--mono); }
.pcard h5 { font: 700 14.5px var(--font); color: var(--ink-0); }
.pcard-cat { margin: 3px 0 12px; font: 500 11.5px var(--mono); color: var(--ink-3); }
.pcard-foot { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.pcard-price { font: 700 15px var(--font); color: var(--ink-0); }
.pcard-cta { padding: 6px 13px; font-size: 13px; }

/* destination card */
.dcard { position: relative; height: 180px; border-radius: var(--radius); overflow: hidden; display: flex; align-items: flex-end; transition: transform .25s var(--spring); }
.dcard:hover { transform: translateY(-4px); }
.dimg-a { background: linear-gradient(135deg,#2f7a5c,#14402f); }
.dimg-b { background: linear-gradient(135deg,#c2611f,#5c2c0e); }
.dimg-c { background: linear-gradient(135deg,#2a71e5,#0e1f3d); }
.dcard-grad { position: absolute; inset: 0; background: linear-gradient(180deg, transparent 40%, rgba(0,0,0,.7)); }
.dcard-body { position: relative; padding: 16px; width: 100%; }
.dcard-body h5 { font: 800 18px var(--font-display); color: #fff; }
.dcard-body p { margin-top: 3px; font: 500 12.5px var(--font); color: rgba(255,255,255,.8); }
.dcard-chip { display: inline-block; margin-top: 10px; padding: 5px 12px; border-radius: 999px; background: rgba(255,255,255,.16); border: 1px solid rgba(255,255,255,.25); color: #fff; font: 600 12px var(--font); backdrop-filter: blur(4px); }

/* compact family summary */
.fam-summary { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; justify-content: center; margin-top: 44px; padding-top: 30px; border-top: 1px solid var(--line); }
.fam-sum-label { font: 600 14px var(--font); color: var(--ink-2); }
.fam-pill { padding: 7px 14px; border-radius: 999px; background: var(--bg-3); border: 1px solid var(--line); font: 600 13px var(--font); color: var(--ink-1); }
.fam-pill-hot { background: rgba(42,113,229,.16); border-color: rgba(42,113,229,.4); color: var(--brand-300); }
.fam-sum-link { margin-left: 6px; font: 600 13.5px var(--font); color: var(--brand-400); }
.fam-sum-link:hover { color: var(--brand-300); }

/* why cards */
.skins-why { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; margin-top: 60px; }
.why-card { padding: 28px; background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); transition: border-color .25s var(--ease), transform .25s var(--spring); }
.why-card:hover { border-color: var(--line-2); transform: translateY(-4px); }
.why-num { font: 700 13px var(--mono); color: var(--brand-500); letter-spacing: .1em; }
.why-card h3 { margin: 12px 0 8px; font: 700 19px var(--font-display); color: var(--ink-0); }
.why-card p { font-size: 15px; color: var(--ink-2); }

/* ═══ Components ═══ */
.components { max-width: var(--maxw); margin: 0 auto; padding: 90px 24px; }
.demo-board { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; margin-bottom: 28px; }
.demo { padding: 22px; background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); display: flex; flex-direction: column; gap: 16px; transition: border-color .25s var(--ease), transform .25s var(--spring); }
.demo:hover { border-color: var(--line-2); transform: translateY(-3px); }
.demo-label { font: 600 11px var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); }
.demo-row { display: flex; align-items: center; gap: 9px; flex-wrap: wrap; }
.demo-spread { justify-content: space-between; }
.demo-sub { font-size: 13.5px; color: var(--ink-2); }

/* component primitives */
.ui-btn { display: inline-flex; align-items: center; padding: 8px 14px; border-radius: 8px; font: 600 13.5px var(--font); border: 1px solid transparent; }
.ui-btn--primary { background: var(--brand-600); color: #fff; }
.ui-btn--secondary { background: var(--bg-3); color: var(--ink-0); border-color: var(--line-2); }
.ui-btn--danger { background: var(--danger); color: #fff; }
.ui-btn--ghost { background: transparent; color: var(--ink-1); border-color: var(--line-2); }
.ui-badge { display: inline-flex; align-items: center; gap: 6px; padding: 4px 11px; border-radius: 999px; font: 600 12px var(--font); }
.ui-badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.ui-badge--success { background: rgba(52,209,138,.15); color: var(--success); }
.ui-badge--warning { background: rgba(246,177,61,.15); color: var(--warning); }
.ui-badge--brand { background: rgba(42,113,229,.18); color: var(--brand-300); }
.ui-input { width: 100%; padding: 10px 13px; border-radius: 9px; border: 1px solid var(--line-2); background: var(--bg-1); color: var(--ink-0); font: 400 14px var(--font); transition: border-color .15s, box-shadow .15s; }
.ui-input:focus { outline: none; border-color: var(--brand-600); box-shadow: 0 0 0 3px rgba(42,113,229,.25); }
.ui-input::placeholder { color: var(--ink-3); }
.ui-toggle { width: 42px; height: 23px; border-radius: 999px; background: var(--brand-600); position: relative; cursor: pointer; transition: background .2s; flex-shrink: 0; }
.ui-toggle::after { content: ""; position: absolute; top: 2px; left: 21px; width: 19px; height: 19px; border-radius: 50%; background: #fff; transition: left .2s var(--spring); }
.ui-toggle.off { background: var(--line-2); } .ui-toggle.off::after { left: 2px; }
.ui-avatars { display: flex; }
.ui-avatars span { width: 32px; height: 32px; border-radius: 50%; border: 2px solid var(--bg-2); margin-left: -8px; display: grid; place-items: center; font: 600 11px var(--font); color: #fff; }
.ui-avatars span:first-child { margin-left: 0; }
.a1{background:var(--brand-600)} .a2{background:var(--success)} .a3{background:var(--warning)} .a4{background:var(--ink-3)}
.ui-swatches { display: flex; gap: 7px; }
.ui-swatches i { width: 28px; height: 28px; border-radius: 7px; border: 1px solid var(--line); }
.s1{background:var(--brand-600)} .s2{background:var(--success)} .s3{background:var(--warning)} .s4{background:var(--danger)} .s5{background:var(--ink-2)}

/* inventory */
.inv-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px,1fr)); gap: 10px; }
.inv-item { display: flex; align-items: center; gap: 10px; padding: 13px 16px; background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius-sm); font-size: 14.5px; color: var(--ink-1); transition: border-color .2s, color .2s, transform .2s var(--spring); }
.inv-item::before { content: "›"; color: var(--brand-500); font-weight: 700; }
.inv-item:hover { border-color: var(--brand-600); color: var(--ink-0); transform: translateY(-2px); }
.inv-more { justify-content: center; color: var(--brand-400); font-weight: 600; border-style: dashed; border-color: var(--line-2); }
.inv-more::before { content: ""; }

/* ═══ Tiers ═══ */
.tiers { max-width: var(--maxw); margin: 0 auto; padding: 90px 24px; }
.tier-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 22px; align-items: start; }
.tier { position: relative; padding: 34px; background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; transition: border-color .25s, transform .25s var(--spring); }
.tier:hover { border-color: var(--line-2); transform: translateY(-4px); }
.tier-feat { border-color: rgba(42,113,229,.4); box-shadow: var(--shadow-blue); }
.tier-glow { position: absolute; top: -120px; right: -120px; width: 340px; height: 340px; border-radius: 50%; background: radial-gradient(circle, rgba(42,113,229,.3), transparent 70%); pointer-events: none; }
.tier-top { display: flex; align-items: baseline; gap: 12px; margin-bottom: 6px; position: relative; }
.tier-no { font: 700 13px var(--mono); color: var(--brand-500); }
.tier-top h3 { font: 800 24px var(--font-display); color: var(--ink-0); }
.tier-sub { color: var(--ink-2); font-size: 15px; margin-bottom: 22px; }
.tier ul { list-style: none; display: flex; flex-direction: column; gap: 12px; margin-bottom: 22px; }
.tier li { position: relative; padding-left: 26px; font-size: 14.5px; color: var(--ink-1); }
.tier li::before { content: "✓"; position: absolute; left: 0; top: 0; width: 18px; height: 18px; display: grid; place-items: center; font-size: 10px; font-weight: 700; border-radius: 50%; background: rgba(42,113,229,.18); color: var(--brand-300); }
.tier li code, .tier-sub code { color: var(--brand-300); }
.tier-code { position: relative; display: flex; align-items: center; margin-bottom: 22px; padding: 12px 14px; background: var(--bg-0); border: 1px solid var(--line); border-radius: var(--radius-sm); }
.tier-code code { color: var(--ink-1); font-size: 13px; flex: 1; }
.tier-fineprint { margin: -10px 0 18px; font: 500 12px var(--font); color: var(--ink-3); line-height: 1.5; }

/* ═══ How access works ═══ */
.howto { max-width: var(--maxw); margin: 0 auto; padding: 30px 24px 90px; scroll-margin-top: 80px; }
.howto-steps { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; margin-bottom: 40px; }
.step { position: relative; padding: 28px; background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); transition: border-color .25s var(--ease), transform .25s var(--spring); }
.step:hover { border-color: var(--line-2); transform: translateY(-3px); }
.step-no { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 10px; background: var(--brand-600); color: #fff; font: 800 18px var(--font-display); margin-bottom: 16px; box-shadow: 0 8px 22px -10px rgba(42,113,229,.8); }
.step h3 { font: 700 18px var(--font-display); color: var(--ink-0); margin-bottom: 8px; }
.step p { font-size: 14.5px; color: var(--ink-2); }
.step p code { color: var(--brand-300); }
.step p strong { color: var(--ink-0); }
.step p em { color: var(--ink-1); font-style: italic; }
.step-tag { display: inline-block; margin-top: 16px; font: 600 11.5px var(--mono); letter-spacing: .04em; text-transform: uppercase; color: var(--ink-3); }
.step:not(:last-child)::after { content: "→"; position: absolute; top: 40px; right: -14px; z-index: 2; color: var(--brand-500); font-size: 18px; font-weight: 700; }

.howto-code { max-width: 760px; margin: 0 auto; padding: 26px; background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius-lg); }
.hc-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 10px; }
.hc-head:not(:first-child) { margin-top: 22px; }
.hc-file { font: 600 12px var(--mono); color: var(--brand-300); padding: 3px 9px; border-radius: 6px; background: rgba(42,113,229,.14); }
.hc-note { font-size: 12.5px; color: var(--ink-3); }
.howto-code pre { position: relative; background: var(--bg-0); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 16px 18px; overflow-x: auto; }
.howto-code pre code { font: 400 13px var(--mono); color: var(--ink-1); white-space: pre; }
.howto-code .copy { position: absolute; top: 10px; right: 10px; }
.howto-foot { margin-top: 22px; font-size: 14px; color: var(--ink-2); line-height: 1.6; }
.howto-foot a { color: var(--brand-400); font-weight: 600; }
.howto-foot a:hover { color: var(--brand-300); }

/* ═══ Contact ═══ */
.contact { max-width: var(--maxw); margin: 0 auto 40px; padding: 0 24px; }
.contact-inner { position: relative; text-align: center; padding: 70px 36px; border-radius: var(--radius-lg); overflow: hidden;
  background: linear-gradient(150deg, var(--brand-700), var(--brand-900) 75%); border: 1px solid rgba(42,113,229,.4); box-shadow: var(--shadow-blue); }
.contact-inner::before { content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 40px 40px; mask-image: radial-gradient(ellipse 70% 80% at 50% 0%, #000, transparent 75%); }
.contact-inner .kicker { color: var(--brand-300); position: relative; }
.contact-inner h2 { position: relative; font: 800 clamp(28px,4vw,42px) var(--font-display); color: #fff; letter-spacing: -.02em; }
.contact-inner > p { position: relative; max-width: 540px; margin: 16px auto 0; color: rgba(255,255,255,.8); font-size: 17px; }
.contact-actions { position: relative; display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 34px; }
.contact-actions .btn-primary { background: #fff; color: var(--brand-700); }
.contact-actions .btn-primary:hover { background: #eaf1ff; }
.contact-actions .btn-line { color: #fff; border-color: rgba(255,255,255,.4); }
.contact-actions .btn-line:hover { background: rgba(255,255,255,.12); border-color: #fff; }
.contact-actions .btn-ghost-d { background: rgba(0,0,0,.25); color: #fff; border-color: rgba(255,255,255,.2); }
.contact-direct { position: relative; margin-top: 26px; color: rgba(255,255,255,.7); font-size: 14.5px; }
.contact-direct a { color: #fff; text-decoration: underline; }

/* ═══ Footer ═══ */
.footer { max-width: var(--maxw); margin: 0 auto; padding: 40px 24px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 18px; border-top: 1px solid var(--line); }
.foot-brand { display: flex; align-items: center; gap: 9px; color: var(--brand-500); font: 600 15px var(--font); }
.foot-brand span { color: var(--ink-1); }
.foot-links { display: flex; gap: 22px; }
.foot-links a { color: var(--ink-2); font-size: 14px; transition: color .15s; }
.foot-links a:hover { color: var(--ink-0); }
.foot-copy { font: 500 13px var(--mono); color: var(--ink-3); }

/* copy button */
.copy { padding: 5px 11px; font: 600 12px var(--font); border: 1px solid var(--line-2); border-radius: 7px; background: var(--bg-3); color: var(--ink-1); cursor: pointer; transition: background .15s, color .15s; }
.copy:hover { background: var(--brand-600); border-color: var(--brand-600); color: #fff; }
.copy.copied { background: var(--success); border-color: var(--success); color: #06281a; }

/* ─── Responsive ─── */
@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; }
  .hero-stage { height: 380px; margin-top: 10px; }
  .skin-showcase { grid-template-columns: 1fr; }
  .skin-list { flex-direction: row; overflow-x: auto; }
  .skin-tab { min-width: 200px; }
  .demo-board { grid-template-columns: repeat(2,1fr); }
  .skins-why { grid-template-columns: 1fr; }
  .card-grid, .card-grid.grid-4 { grid-template-columns: repeat(2,1fr); }
  .gal-skin { display: none; }
  .howto-steps { grid-template-columns: 1fr; }
  .step:not(:last-child)::after { display: none; }
  .tier-grid { grid-template-columns: 1fr; }
  .nav-links > a:not(.btn):not(.nav-sb) { display: none; }
}
@media (max-width: 540px) {
  .demo-board { grid-template-columns: 1fr; }
  .card-grid, .card-grid.grid-4 { grid-template-columns: 1fr; }
  .hero-stats { gap: 24px; }
}

/* ─── Reveal on scroll (JS-gated; content always visible without JS) ─── */
html.js .reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s var(--ease), transform .7s var(--spring); }
html.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
  html.js .reveal { opacity: 1; transform: none; transition: none; }
  .surface-front, .surface-back, .tag-dot, .accent { animation: none !important; }
  .btn:hover, .demo:hover, .why-card:hover, .tier:hover, .inv-item:hover { transform: none; }
}