/* MohebiAI landing — Neural Core with glass panels */
:root {
  color-scheme: dark;
  --bg: #070908;
  --text: #f4f7f5;
  --text-2: #c9d0cc;
  --muted: #8f9a94;
  --green: #c8ff3d;
  --green-soft: rgba(200, 255, 61, 0.12);
  --green-glow: rgba(200, 255, 61, 0.32);
  --glass: rgba(255, 255, 255, 0.045);
  --glass-line: rgba(255, 255, 255, 0.12);
  --glass-hi: rgba(255, 255, 255, 0.07);
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "SFMono-Regular", ui-monospace, Menlo, Consolas, "Liberation Mono", monospace;
  --gutter: clamp(16px, 5vw, 72px);
  --ease: cubic-bezier(0.2, 0.72, 0.2, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; background: var(--bg); overflow-x: clip; }
body { color: var(--text); font-family: var(--sans); -webkit-font-smoothing: antialiased; line-height: 1.5; }
a { color: inherit; }
a:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; border-radius: 6px; }
h1, h2, h3 { margin: 0; font-weight: 560; letter-spacing: -0.045em; }
p { margin: 0; }

.skip-link { position: absolute; left: 12px; top: -60px; z-index: 50; padding: 10px 14px; border-radius: 10px; background: var(--green); color: #0b0e0c; font-weight: 700; text-decoration: none; }
.skip-link:focus { top: 12px; }

/* ── Core stage (fixed, behind everything) ─────────────────────────── */
.core-stage { position: fixed; inset: 0; z-index: 0; pointer-events: none; }
.core-stage canvas { position: absolute; inset: 0; width: 100%; height: 100%; opacity: var(--core-opacity, 1); transition: opacity 0.6s var(--ease); }
.dot-grid { position: absolute; inset: 0; background-image: radial-gradient(rgba(200, 255, 61, 0.1) 1px, transparent 1.5px); background-size: 28px 28px; mask-image: radial-gradient(ellipse 80% 70% at 60% 40%, #000 20%, transparent 75%); -webkit-mask-image: radial-gradient(ellipse 80% 70% at 60% 40%, #000 20%, transparent 75%); opacity: 0.7; }
.core-glow { position: absolute; left: var(--cx, 71%); top: var(--cy, 44%); width: calc(min(70vw, 70vh) * var(--cz, 1)); aspect-ratio: 1; border-radius: 50%; transform: translate(-50%, -50%); background: radial-gradient(circle, rgba(200, 255, 61, 0.2), rgba(200, 255, 61, 0.06) 38%, transparent 68%); filter: blur(10px); transition: left 1.4s var(--ease), top 1.4s var(--ease), width 1.4s var(--ease); animation: halo 4.2s ease-in-out infinite; }
.core-stage[data-section="modes"] canvas, .core-stage[data-section="measured"] canvas { opacity: calc(var(--core-opacity, 1) * 0.55); }
.neural-core--fallback .core-glow { display: none; }
.core-vignette { position: absolute; inset: 0; background: radial-gradient(ellipse at 50% 120%, rgba(7, 9, 8, 0.9), transparent 60%), linear-gradient(to bottom, rgba(7, 9, 8, 0) 70%, rgba(7, 9, 8, 0.85)); }
.core-fallback { display: none; position: absolute; right: 12vw; top: 18vh; width: min(46vw, 520px); aspect-ratio: 1; }
.core-fallback i { position: absolute; inset: 0; border-radius: 50%; }
.core-fallback i:nth-child(1) { background: radial-gradient(circle at 40% 38%, rgba(200, 255, 61, 0.55), rgba(200, 255, 61, 0.1) 42%, transparent 70%); animation: breathe 4.2s ease-in-out infinite; }
.core-fallback i:nth-child(2) { inset: -8%; border: 1px dashed rgba(200, 255, 61, 0.28); animation: spin 26s linear infinite; }
.core-fallback i:nth-child(3) { inset: -22%; border: 1px solid rgba(200, 255, 61, 0.1); animation: spin 40s linear infinite reverse; }
.neural-core--fallback .core-fallback { display: block; }

/* ── Glass ─────────────────────────────────────────────────────────── */
.glass { position: relative; border: 1px solid var(--glass-line); border-radius: 18px; background: linear-gradient(160deg, var(--glass-hi), var(--glass) 40%, rgba(255, 255, 255, 0.02)); box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 24px 70px rgba(0, 0, 0, 0.45); backdrop-filter: blur(18px) saturate(140%); -webkit-backdrop-filter: blur(18px) saturate(140%); }
.glass::after { content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; background: linear-gradient(115deg, transparent 30%, rgba(200, 255, 61, 0.07) 48%, transparent 62%); background-size: 250% 100%; background-position: 120% 0; transition: background-position 1.1s var(--ease); }
.glass:hover::after { background-position: -40% 0; }

/* ── Nav ───────────────────────────────────────────────────────────── */
.nav { position: fixed; z-index: 20; top: 0; left: 0; right: 0; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: max(16px, env(safe-area-inset-top)) var(--gutter) 16px; background: linear-gradient(to bottom, rgba(7, 9, 8, 0.82), rgba(7, 9, 8, 0)); }
.wordmark { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; letter-spacing: 0.14em; }
.wordmark b { font-size: 13px; font-weight: 720; }
.brand-orb { width: 10px; height: 10px; border-radius: 50%; background: var(--green); box-shadow: 0 0 18px var(--green); animation: breathe 3s ease-in-out infinite; }
.nav-links { display: flex; gap: 28px; }
.nav-links a { color: var(--text-2); font-size: 13px; text-decoration: none; transition: color 0.2s; }
.nav-links a:hover { color: var(--green); }
.nav-signin { display: inline-flex; min-height: 40px; align-items: center; gap: 8px; padding: 0 16px; border: 1px solid rgba(200, 255, 61, 0.35); border-radius: 999px; background: rgba(200, 255, 61, 0.06); color: var(--green); font-size: 13px; font-weight: 650; text-decoration: none; backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); transition: background 0.2s, box-shadow 0.2s; }
.nav-signin:hover { background: rgba(200, 255, 61, 0.14); box-shadow: 0 0 24px rgba(200, 255, 61, 0.2); }

/* ── Layout ────────────────────────────────────────────────────────── */
main { position: relative; z-index: 1; }
section { position: relative; padding: clamp(96px, 16vh, 180px) var(--gutter); }
.eyebrow { color: var(--green); font: 600 12px/1 var(--mono); letter-spacing: 0.18em; text-transform: uppercase; }
.section-head { max-width: 1180px; margin: 0 auto 48px; }
.section-head h2 { margin-top: 18px; font-size: clamp(44px, 6.4vw, 96px); line-height: 0.92; }
.lede { max-width: 520px; color: var(--text-2); font-size: clamp(16px, 1.5vw, 20px); line-height: 1.55; }

.cta { position: relative; display: inline-flex; min-height: 52px; align-items: center; gap: 12px; padding: 0 24px; overflow: hidden; border-radius: 14px; background: var(--green); color: #0b0e0c; font-weight: 740; text-decoration: none; transition: transform 0.2s var(--ease), box-shadow 0.2s; }
.cta::before { content: ""; position: absolute; inset: 0; background: linear-gradient(110deg, transparent 35%, rgba(255, 255, 255, 0.55) 50%, transparent 65%); transform: translateX(-120%); transition: transform 0.8s var(--ease); }
.cta:hover { transform: translateY(-2px); box-shadow: 0 18px 50px rgba(200, 255, 61, 0.22); }
.cta:hover::before { transform: translateX(120%); }
.cta:active { transform: translateY(0) scale(0.98); }
.cta--ghost { border: 1px solid var(--glass-line); background: rgba(255, 255, 255, 0.04); color: var(--text); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }
.cta--ghost:hover { box-shadow: 0 0 30px rgba(200, 255, 61, 0.12); border-color: rgba(200, 255, 61, 0.4); }

/* ── 01 Hero ───────────────────────────────────────────────────────── */
.hero { display: grid; min-height: 100svh; align-content: end; padding-top: 120px; padding-bottom: clamp(48px, 9vh, 96px); }
.hero-copy { max-width: 780px; }
.hero h1 { margin: 22px 0 24px; font-size: clamp(64px, 11vw, 176px); line-height: 0.84; letter-spacing: -0.07em; font-weight: 540; text-shadow: 0 0 60px rgba(7, 9, 8, 0.8); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.boot { position: absolute; top: clamp(96px, 18vh, 170px); left: var(--gutter); margin: 0; padding: 0; list-style: none; color: #a9b7a0; font: 12px/1.9 var(--mono); letter-spacing: 0.06em; }
.boot li::before { content: "› "; color: var(--green); }
.boot span { display: inline-block; overflow: hidden; white-space: nowrap; vertical-align: bottom; width: 0; animation: type 0.5s steps(14, end) forwards; }
.boot li:nth-child(1) span { animation-delay: 0.15s; }
.boot li:nth-child(2) span { animation-delay: 0.6s; }
.boot li:nth-child(3) span { animation-delay: 1.05s; color: var(--green); }
.ticker { position: absolute; right: var(--gutter); bottom: clamp(48px, 9vh, 96px); display: grid; grid-template-columns: repeat(3, auto); gap: 28px; margin: 0; padding: 18px 22px; }
.ticker div { display: grid; gap: 6px; }
.ticker dt { color: var(--muted); font: 11px/1 var(--mono); letter-spacing: 0.16em; text-transform: uppercase; }
.ticker dd { margin: 0; color: var(--green); font: 600 14px/1.2 var(--mono); white-space: nowrap; }

/* ── 02 Machine (pinned on wide screens) ───────────────────────────── */
.machine { padding: 0 var(--gutter); }
.machine .pin { display: grid; min-height: 100svh; align-content: center; padding: 120px 0 80px; }
.machine .section-head { width: min(1180px, 100%); }
.machine-cards { display: grid; width: min(1180px, 100%); margin: 0 auto; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.card { padding: 26px 24px 28px; }
.card-kicker { color: var(--green); font: 600 11px/1 var(--mono); letter-spacing: 0.18em; text-transform: uppercase; }
.card h3 { margin: 16px 0 12px; font-size: clamp(22px, 2.1vw, 30px); line-height: 1.05; letter-spacing: -0.03em; }
.card p:not(.card-kicker) { color: var(--text-2); font-size: 15px; line-height: 1.55; }

/* ── 03 Modes ──────────────────────────────────────────────────────── */
.mode-cards { display: grid; width: min(1180px, 100%); margin: 0 auto; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.mode h3 { margin-top: 22px; }
.demo { display: grid; height: 112px; align-content: center; gap: 10px; padding: 16px; border: 1px solid rgba(255, 255, 255, 0.07); border-radius: 12px; background: rgba(0, 0, 0, 0.35); }
.demo-chat .dots { display: flex; gap: 6px; }
.demo-chat .dots i { width: 7px; height: 7px; border-radius: 50%; background: var(--green); animation: dot 1.1s ease-in-out infinite; }
.demo-chat .dots i:nth-child(2) { animation-delay: 0.15s; }
.demo-chat .dots i:nth-child(3) { animation-delay: 0.3s; }
.demo-chat .line { display: block; height: 7px; border-radius: 4px; background: linear-gradient(90deg, rgba(244, 247, 245, 0.55), rgba(244, 247, 245, 0.18)); transform-origin: left; animation: stream 5s var(--ease) infinite; }
.demo-chat .line:nth-of-type(2) { animation-delay: 0.35s; }
.demo-chat .line.short { width: 60%; animation-delay: 0.7s; }
.demo-agent { grid-template-columns: repeat(2, auto); justify-content: start; }
.demo-agent b { padding: 7px 12px; border: 1px solid rgba(200, 255, 61, 0.2); border-radius: 999px; color: var(--muted); font: 600 11px/1 var(--mono); letter-spacing: 0.08em; animation: chip 4.8s linear infinite; }
.demo-agent b:nth-child(2) { animation-delay: 1.2s; }
.demo-agent b:nth-child(3) { animation-delay: 2.4s; }
.demo-agent b:nth-child(4) { animation-delay: 3.6s; }
.demo-deep .bar { display: block; height: 10px; overflow: hidden; border-radius: 6px; background: rgba(255, 255, 255, 0.08); }
.demo-deep .bar i { display: block; height: 100%; width: 100%; border-radius: inherit; background: linear-gradient(90deg, rgba(200, 255, 61, 0.35), var(--green)); box-shadow: 0 0 18px var(--green-glow); transform-origin: left; animation: fill 5s var(--ease) infinite; }
.demo-deep small { color: var(--muted); font: 12px var(--mono); }
.demo * { animation-play-state: paused; }
.mode.playing .demo * { animation-play-state: running; }

/* ── 04 Private ────────────────────────────────────────────────────── */
.path { display: grid; width: min(1180px, 100%); margin: 0 auto 56px; grid-template-columns: auto 1fr auto 1fr auto; align-items: center; }
.node { padding: 18px 22px; border-radius: 14px; font-weight: 650; white-space: nowrap; }
.node--core { border-color: rgba(200, 255, 61, 0.45); box-shadow: 0 0 40px rgba(200, 255, 61, 0.18), inset 0 1px 0 rgba(255, 255, 255, 0.08); color: var(--green); }
.wire { position: relative; height: 2px; margin: 0 10px; overflow: hidden; background: linear-gradient(90deg, rgba(200, 255, 61, 0.1), rgba(200, 255, 61, 0.28), rgba(200, 255, 61, 0.1)); }
.wire i { position: absolute; top: -3px; left: 0; width: 60px; height: 8px; border-radius: 4px; background: radial-gradient(closest-side, var(--green), transparent); filter: drop-shadow(0 0 8px var(--green)); animation: pulse-x 2.2s linear infinite; }
.wire:nth-of-type(4) i { animation-delay: 1.1s; }
.facts { display: grid; width: min(1180px, 100%); margin: 0 auto; padding: 0; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 40px; list-style: none; color: var(--text-2); font-size: 16px; }
.facts li { padding-left: 22px; border-left: 1px solid rgba(200, 255, 61, 0.25); }
.facts b { display: block; margin-bottom: 4px; color: var(--text); }

/* ── 05 Measured ───────────────────────────────────────────────────── */
.numbers { display: grid; width: min(1180px, 100%); margin: 0 auto; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.numbers div { padding-top: 18px; border-top: 1px solid rgba(200, 255, 61, 0.25); }
.numbers dt { color: var(--muted); font: 12px/1.3 var(--mono); letter-spacing: 0.12em; text-transform: uppercase; }
.numbers dd { margin: 12px 0 0; color: var(--text); font-size: clamp(48px, 6vw, 88px); font-weight: 560; letter-spacing: -0.05em; line-height: 1; font-variant-numeric: tabular-nums; }
.numbers dd small { margin-left: 8px; color: var(--green); font: 600 14px var(--mono); letter-spacing: 0.04em; }
.footnote { width: min(1180px, 100%); margin: 40px auto 0; color: var(--muted); font-size: 13px; }

/* ── 06 Access + footer ────────────────────────────────────────────── */
.access { display: grid; min-height: 80svh; place-content: center; justify-items: center; gap: 24px; text-align: center; }
.access h2 { font-size: clamp(56px, 9vw, 140px); line-height: 0.9; letter-spacing: -0.06em; }
.access .lede { margin: 0 auto; }
.foot { position: relative; z-index: 1; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; padding: 28px var(--gutter) max(28px, env(safe-area-inset-bottom)); border-top: 1px solid rgba(255, 255, 255, 0.06); color: var(--muted); font-size: 13px; }
.foot a { text-decoration: none; }
.foot a:hover { color: var(--green); }

/* ── Reveal (only when JS is running) ──────────────────────────────── */
html.js .reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
html.js .reveal.in { opacity: 1; transform: none; }
html.js .machine-cards .reveal { transition-delay: calc(var(--d, 0) * 1ms); }

/* ── Keyframes ─────────────────────────────────────────────────────── */
@keyframes breathe { 50% { transform: scale(1.08); filter: brightness(1.2); } }
@keyframes halo { 50% { transform: translate(-50%, -50%) scale(1.1); opacity: 0.8; } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes type { to { width: 14ch; } }
@keyframes dot { 0%, 100% { opacity: 0.25; transform: translateY(0); } 40% { opacity: 1; transform: translateY(-3px); } }
@keyframes stream { 0%, 18% { transform: scaleX(0); opacity: 0; } 22% { opacity: 1; } 55%, 88% { transform: scaleX(1); opacity: 1; } 100% { transform: scaleX(1); opacity: 0; } }
@keyframes chip { 0%, 22% { color: #0b0e0c; background: var(--green); border-color: var(--green); box-shadow: 0 0 16px var(--green-glow); } 26%, 100% { color: var(--muted); background: transparent; border-color: rgba(200, 255, 61, 0.2); box-shadow: none; } }
@keyframes fill { 0% { transform: scaleX(0.02); } 75%, 100% { transform: scaleX(1); } }
@keyframes pulse-x { from { transform: translateX(-60px); } to { transform: translateX(calc(100vw)); } }
@keyframes pulse-y { from { transform: translateY(-40px); } to { transform: translateY(120px); } }

/* ── Wide: pinned machine story ────────────────────────────────────── */
@media (min-width: 720px) {
  .machine { height: 260svh; }
  .machine .pin { position: sticky; top: 0; height: 100svh; min-height: 0; }
  html.js .machine .card { opacity: 0; transform: translateY(40px) scale(0.97); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
  html.js .machine[data-step="1"] .card[data-i="1"],
  html.js .machine[data-step="2"] .card:is([data-i="1"], [data-i="2"]),
  html.js .machine[data-step="3"] .card { opacity: 1; transform: none; }
}

/* ── Tablet ────────────────────────────────────────────────────────── */
@media (max-width: 1099px) {
  .mode-cards { grid-template-columns: 1fr; max-width: 620px; }
  .numbers { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 40px; }
  .ticker { position: static; margin-top: 40px; justify-self: start; }
}

/* ── Phone ─────────────────────────────────────────────────────────── */
@media (max-width: 719px) {
  :root { --core-opacity: 0.55; }
  .nav-links { display: none; }
  .hero { align-content: center; padding-top: 96px; }
  .boot { position: static; order: -1; margin: 0 0 20px; }
  .ticker { grid-template-columns: 1fr 1fr; gap: 16px 22px; width: 100%; }
  .ticker div:last-child { grid-column: 1 / -1; }
  .machine-cards { grid-template-columns: 1fr; }
  .path { grid-template-columns: 1fr; justify-items: center; }
  .wire { width: 2px; height: 48px; margin: 8px 0; background: linear-gradient(180deg, rgba(200, 255, 61, 0.1), rgba(200, 255, 61, 0.3), rgba(200, 255, 61, 0.1)); }
  .wire i { top: 0; left: -3px; width: 8px; height: 30px; animation-name: pulse-y; }
  .facts { grid-template-columns: 1fr; }
  .core-fallback { right: -20vw; top: 10vh; width: 110vw; opacity: 0.6; }
}

@media (max-width: 380px) {
  .hero h1 { font-size: 58px; }
  .numbers { grid-template-columns: 1fr; }
  .node { white-space: normal; text-align: center; }
}

/* ── Reduced motion: static and fully visible ──────────────────────── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .boot span { width: auto; }
  .demo-deep .bar i, .demo-chat .line { transform: none; opacity: 1; }
  html.js .reveal, html.js .machine .card { opacity: 1; transform: none; }
}