/* ============================================================
   Landing — bespoke styles (3D hero, bento, marquee, tilt)
   Loaded only on index.html, on top of styles.css
   ============================================================ */

/* ---------------- HERO ---------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 96px 0 60px;
  overflow: hidden;
  isolation: isolate;
}
#hero3d {
  position: absolute; inset: 0; width: 100%; height: 100%;
  z-index: -1; display: block;
}
/* radial veil so text stays legible over the network */
.hero-veil {
  position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(70% 70% at 22% 42%, color-mix(in srgb, var(--bg) 78%, transparent) 0%, transparent 58%),
    linear-gradient(180deg, transparent 55%, var(--bg) 97%);
}
html:not(.dark) .hero-veil {
  background:
    radial-gradient(70% 70% at 22% 42%, color-mix(in srgb, var(--bg) 86%, transparent) 0%, transparent 60%),
    linear-gradient(180deg, transparent 55%, var(--bg) 97%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
  width: 100%;
}

.hero-eyebrow {
  font: 600 12px/1 'Geist Mono', monospace; letter-spacing: .22em; text-transform: uppercase;
  color: var(--primary-2); display: inline-flex; align-items: center; gap: 10px; margin-bottom: 26px;
}
.hero-eyebrow::before { content:''; width: 26px; height: 1px; background: currentColor; opacity:.7; }

.hero-title {
  font-size: clamp(44px, 6.4vw, 88px);
  font-weight: 660;
  letter-spacing: -0.045em;
  line-height: 0.98;
  margin: 0;
}
.hero-title .line { display: block; overflow: hidden; }
.hero-title .word {
  display: inline-block;
  transform: translateY(110%);
  animation: rise .9s cubic-bezier(.2,.75,.2,1) forwards;
}
@keyframes rise { to { transform: none; } }

.hero-sub {
  color: var(--text-dim);
  font-size: clamp(16px, 1.35vw, 19px);
  line-height: 1.6;
  max-width: 460px;
  margin: 28px 0 0;
  opacity: 0; animation: fadeUp .8s ease .55s forwards;
}
.hero-cta { display: flex; gap: 13px; flex-wrap: wrap; margin-top: 34px; opacity: 0; animation: fadeUp .8s ease .7s forwards; }
.hero-chips { display: flex; gap: 22px; flex-wrap: wrap; margin-top: 34px; opacity: 0; animation: fadeUp .8s ease .85s forwards; }
.hero-chip { display: inline-flex; align-items: center; gap: 9px; font-size: 13.5px; color: var(--text-dim); }
.hero-chip svg { width: 17px; height: 17px; color: var(--primary-2); }
.hero-chip + .hero-chip { padding-left: 22px; border-left: 1px solid var(--border); }
@keyframes fadeUp { from { opacity:0; transform: translateY(16px);} to { opacity:1; transform:none; } }

/* live demo card */
.hero-demo { opacity: 0; animation: fadeUp 1s ease .6s forwards; perspective: 1200px; }
.demo-card {
  width: 100%; max-width: 420px; margin-left: auto;
  background: color-mix(in srgb, var(--surface-solid) 82%, transparent);
  border: 1px solid var(--border-2);
  border-radius: 22px;
  box-shadow: var(--shadow), 0 0 0 1px rgba(124,127,245,.08), 0 0 80px -30px var(--glow);
  backdrop-filter: blur(22px) saturate(150%);
  -webkit-backdrop-filter: blur(22px) saturate(150%);
  overflow: hidden;
  transform-style: preserve-3d;
  transition: transform .25s cubic-bezier(.2,.7,.2,1);
}
.demo-head { display: flex; align-items: center; gap: 12px; padding: 16px 18px; border-bottom: 1px solid var(--border); }
.demo-av { width: 38px; height: 38px; border-radius: 11px; flex-shrink: 0; display: grid; place-items: center; color:#fff; background: linear-gradient(150deg, var(--primary), var(--primary-2)); box-shadow: 0 6px 16px -6px var(--glow); }
.demo-log { padding: 20px 18px; display: flex; flex-direction: column; gap: 12px; min-height: 230px; }
.demo-msg { max-width: 86%; padding: 11px 14px; border-radius: 15px; font-size: 14px; line-height: 1.5; opacity: 0; transform: translateY(8px); transition: opacity .35s, transform .35s; }
.demo-msg.show { opacity: 1; transform: none; }
.demo-msg.me { align-self: flex-end; background: linear-gradient(180deg,#7c7ff5,var(--primary)); color:#fff; border-top-right-radius: 5px; }
.demo-msg.bot { align-self: flex-start; background: var(--surface-2); border: 1px solid var(--border); border-top-left-radius: 5px; }
.demo-cursor::after { content:'▍'; color: var(--primary-2); animation: blink 1s steps(2) infinite; margin-left: 1px; }
@keyframes blink { 50% { opacity: 0; } }
.demo-foot { display: flex; align-items: center; gap: 10px; padding: 13px 16px; border-top: 1px solid var(--border); }
.demo-foot .fake-input { flex: 1; height: 40px; border-radius: 11px; background: var(--surface-2); border: 1px solid var(--border); display: flex; align-items: center; padding: 0 13px; color: var(--text-faint); font-size: 13.5px; }
.demo-send { width: 40px; height: 40px; flex-shrink: 0; border-radius: 11px; display: grid; place-items: center; color:#fff; background: linear-gradient(180deg,#7c7ff5,var(--primary)); }

.scroll-cue { position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: 8px; color: var(--text-faint); font: 500 11px 'Geist Mono'; letter-spacing: .16em; text-transform: uppercase; opacity: 0; animation: fadeUp 1s ease 1.1s forwards; }
.scroll-cue .mouse { width: 22px; height: 34px; border: 1.5px solid var(--border-2); border-radius: 12px; position: relative; }
.scroll-cue .mouse::after { content:''; position: absolute; top: 6px; left: 50%; transform: translateX(-50%); width: 3px; height: 6px; border-radius: 2px; background: var(--primary-2); animation: scrolldot 1.6s ease-in-out infinite; }
@keyframes scrolldot { 0%{ opacity:0; transform: translate(-50%,0);} 30%{opacity:1} 70%{opacity:1} 100%{ opacity:0; transform: translate(-50%,12px);} }

/* ---------------- MARQUEE ---------------- */
.marquee { overflow: hidden; -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
.marquee-track { display: flex; gap: 56px; width: max-content; animation: marquee 32s linear infinite; }
.marquee-track span { font: 650 21px 'Geist'; letter-spacing: -.03em; color: var(--text-dim); opacity: .8; white-space: nowrap; display: inline-flex; align-items: center; gap: 11px; }
.marquee-track span::before { content:''; width: 8px; height: 8px; border-radius: 2px; background: linear-gradient(135deg, var(--primary), var(--primary-2)); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------------- BENTO ---------------- */
.bento { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 198px; gap: 16px; grid-auto-flow: dense; }
.bento .tile {
  position: relative; overflow: hidden; padding: 24px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 20px;
  backdrop-filter: blur(16px) saturate(140%); -webkit-backdrop-filter: blur(16px) saturate(140%);
  display: flex; flex-direction: column;
  transition: border-color .3s, box-shadow .35s, transform .2s;
  transform-style: preserve-3d;
}
.bento .tile:hover { border-color: var(--border-2); box-shadow: var(--shadow); }
.bento .b-lg { grid-column: span 2; grid-row: span 2; }
.bento .b-wide { grid-column: span 2; }
.tile .ico-tile { margin-bottom: 0; }
.tile .t-head { display: flex; align-items: center; gap: 13px; }
.tile h3 { font: 600 17.5px 'Geist'; letter-spacing: -.02em; margin: 18px 0 7px; }
.tile p { color: var(--text-dim); font-size: 14px; line-height: 1.55; margin: 0; }
.tile .glow-edge { position: absolute; inset: 0; border-radius: inherit; padding: 1px; background: linear-gradient(130deg, var(--primary), transparent 45%); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; opacity: 0; transition: opacity .35s; pointer-events: none; }
.bento .tile:hover .glow-edge { opacity: .85; }

/* mini demos inside bento */
.mini-chat { margin-top: auto; display: flex; flex-direction: column; gap: 9px; }
.mini-bub { padding: 9px 12px; border-radius: 13px; font-size: 12.5px; line-height: 1.45; max-width: 90%; }
.mini-bub.me { align-self: flex-end; background: linear-gradient(180deg,#7c7ff5,var(--primary)); color:#fff; border-top-right-radius:4px; }
.mini-bub.bot { align-self: flex-start; background: var(--surface-2); border:1px solid var(--border); border-top-left-radius:4px; }
.file-chips { display: flex; gap: 8px; flex-wrap: wrap; margin-top: auto; align-items: center; }
.file-chip { display: inline-flex; align-items: center; gap: 6px; padding: 7px 11px; border-radius: 9px; background: var(--surface-2); border: 1px solid var(--border); font: 600 10px 'Geist Mono'; letter-spacing: .04em; }
.spark { margin-top: auto; display: flex; align-items: flex-end; gap: 6px; height: 56px; }
.spark i { flex: 1; border-radius: 4px 4px 2px 2px; background: linear-gradient(180deg, var(--primary-2), var(--primary)); opacity: .85; }

/* ---------------- HOW IT WORKS (flow) ---------------- */
.flow { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; position: relative; }
.flow-card { position: relative; padding: 30px 26px; background: var(--surface); border: 1px solid var(--border); border-radius: 20px; backdrop-filter: blur(14px); }
.flow-step { font: 600 11px 'Geist Mono'; letter-spacing: .14em; text-transform: uppercase; color: var(--primary-2); }
.flow-num { font: 680 56px 'Geist'; letter-spacing: -.04em; line-height: 1; background: linear-gradient(160deg, var(--text), color-mix(in srgb, var(--text) 30%, transparent)); -webkit-background-clip: text; background-clip: text; color: transparent; margin: 6px 0 16px; }
.flow-card h3 { font: 600 19px 'Geist'; margin: 0 0 8px; }
.flow-card p { color: var(--text-dim); font-size: 14.5px; line-height: 1.55; margin: 0; }
.flow-connector { position: absolute; top: 84px; height: 2px; background: linear-gradient(90deg, var(--primary), var(--primary-2)); opacity: .4; }

/* ---------------- responsive ---------------- */
@media (max-width: 1000px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-demo { order: 2; }
  .demo-card { margin: 0 auto; }
  .hero-veil { background: radial-gradient(80% 60% at 50% 30%, color-mix(in srgb, var(--bg) 72%, transparent), transparent 65%), linear-gradient(180deg, transparent 50%, var(--bg) 95%); }
  .bento { grid-template-columns: repeat(2, 1fr); }
  .bento .b-lg { grid-column: span 2; grid-row: span 2; }
  .bento .b-wide { grid-column: span 2; }
  .flow { grid-template-columns: 1fr; }
  .flow-connector { display: none; }
}
@media (max-width: 620px) {
  .hero { padding-top: 92px; min-height: auto; }
  .hero-chip + .hero-chip { padding-left: 0; border-left: none; }
  .hero-chips { gap: 14px; }
  .bento { grid-template-columns: 1fr; grid-auto-rows: auto; }
  .bento .tile { min-height: 180px; }
  .bento .b-lg, .bento .b-wide { grid-column: span 1; grid-row: auto; }
}
@media (prefers-reduced-motion: reduce) {
  .hero-title .word, .hero-sub, .hero-cta, .hero-chips, .hero-demo, .scroll-cue { animation: none !important; opacity: 1 !important; transform: none !important; }
  .marquee-track { animation: none; }
}