/* headsupp.ai — landing page. Dark, glassy, no webfonts, no third-party assets (CSP 'self'). */
:root {
  --bg: #04050a;
  --bg-2: #080a14;
  --panel: rgba(255, 255, 255, 0.04);
  --panel-2: rgba(255, 255, 255, 0.07);
  --line: rgba(255, 255, 255, 0.09);
  --line-2: rgba(255, 255, 255, 0.16);
  --text: #f4f6fb;
  --muted: #9aa3b8;
  --dim: #646d82;
  --mint: #3cf0a5;
  --cyan: #22d3ee;
  --violet: #8b5cf6;
  --pink: #f472b6;
  --grad: linear-gradient(100deg, var(--mint) 0%, var(--cyan) 45%, var(--violet) 100%);
  --radius: 22px;
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; background: var(--bg); color: var(--text); }
html { overflow-x: clip; }
body { font: 17px/1.6 var(--sans); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
a { color: inherit; }
img, svg, canvas, video { display: block; max-width: 100%; }
.wrap { width: min(1180px, 100% - 40px); margin: 0 auto; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.eyebrow {
  font: 600 12px/1 var(--mono); letter-spacing: .18em; text-transform: uppercase; color: var(--cyan);
  display: inline-flex; align-items: center; gap: 10px;
}
.eyebrow::before { content: ""; width: 22px; height: 1px; background: currentColor; opacity: .7; }

/* ---------- ambient background ---------- */
.aurora { position: fixed; inset: 0; z-index: -2; pointer-events: none; overflow: hidden; }
.aurora span { position: absolute; border-radius: 50%; filter: blur(90px); opacity: .45; animation: drift 22s ease-in-out infinite alternate; }
.aurora .a1 { width: 620px; height: 620px; left: -160px; top: -200px; background: radial-gradient(circle, rgba(139, 92, 246, .75), transparent 65%); }
.aurora .a2 { width: 560px; height: 560px; right: -180px; top: 120px; background: radial-gradient(circle, rgba(34, 211, 238, .55), transparent 65%); animation-delay: -6s; }
.aurora .a3 { width: 520px; height: 520px; left: 30%; top: 70vh; background: radial-gradient(circle, rgba(60, 240, 165, .32), transparent 65%); animation-delay: -12s; }
@keyframes drift { to { transform: translate3d(60px, 40px, 0) scale(1.12); } }
.grid-floor {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 75%);
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 75%);
}

/* ---------- nav ---------- */
.nav { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(18px) saturate(1.4); -webkit-backdrop-filter: blur(18px) saturate(1.4); background: rgba(4, 5, 10, .55); border-bottom: 1px solid var(--line); }
.nav .wrap { display: flex; align-items: center; gap: 28px; height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 750; font-size: 19px; letter-spacing: -.02em; text-decoration: none; }
.brand-mark { width: 28px; height: 28px; }
.nav-links { display: flex; gap: 26px; margin-left: auto; }
.nav-links a { color: var(--muted); text-decoration: none; font-size: 15px; transition: color .2s; }
.nav-links a:hover { color: var(--text); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px; border: 0; cursor: pointer;
  padding: 14px 24px; border-radius: 999px; font: 650 16px/1 var(--sans); text-decoration: none; white-space: nowrap;
  transition: transform .2s, box-shadow .2s, background .2s;
}
.btn-primary { color: #03120c; background: var(--grad); box-shadow: 0 0 0 1px rgba(255,255,255,.12) inset, 0 10px 40px -10px rgba(34, 211, 238, .65); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 0 0 1px rgba(255,255,255,.2) inset, 0 16px 50px -10px rgba(34, 211, 238, .85); }
.btn-ghost { color: var(--text); background: var(--panel); border: 1px solid var(--line-2); }
.btn-ghost:hover { background: var(--panel-2); }
.btn-sm { padding: 10px 18px; font-size: 14px; }
.btn[disabled] { opacity: .55; cursor: progress; transform: none; }

/* ---------- hero ---------- */
.hero { padding: 84px 0 72px; overflow-x: clip; }
.hero .wrap { display: grid; grid-template-columns: 1.08fr .92fr; gap: 56px; align-items: center; }
.pill {
  display: inline-flex; align-items: center; gap: 10px; padding: 7px 14px 7px 10px; border-radius: 999px;
  background: var(--panel); border: 1px solid var(--line-2); font-size: 14px; color: var(--muted);
}
.pulse-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 0 0 rgba(60, 240, 165, .7); animation: pulse 2s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 10px rgba(60, 240, 165, 0); } 100% { box-shadow: 0 0 0 0 rgba(60, 240, 165, 0); } }
.hero h1 { font-size: clamp(44px, 6.4vw, 84px); line-height: .98; letter-spacing: -.045em; margin: 26px 0 24px; font-weight: 800; }
.hero .lede { font-size: clamp(18px, 1.6vw, 21px); color: var(--muted); max-width: 590px; margin: 0 0 34px; }
.hero .lede strong { color: var(--text); font-weight: 600; }
.cta-row { display: flex; gap: 14px; flex-wrap: wrap; }
.stats { display: grid; grid-template-columns: repeat(4, auto); gap: 10px 30px; margin-top: 46px; padding-top: 26px; border-top: 1px solid var(--line); justify-content: start; }
.stat b { display: block; font-size: 22px; letter-spacing: -.02em; }
.stat span { font-size: 13px; color: var(--dim); }

/* phone mockup */
.stage { position: relative; display: grid; place-items: center; min-height: 640px; }
.halo { position: absolute; width: 520px; height: 520px; border-radius: 50%; background: conic-gradient(from 0deg, rgba(60,240,165,.0), rgba(34,211,238,.35), rgba(139,92,246,.45), rgba(60,240,165,.0)); filter: blur(50px); animation: spin 18s linear infinite; }
.ring { position: absolute; border-radius: 50%; border: 1px solid rgba(34, 211, 238, .18); }
.ring.r1 { width: 470px; height: 470px; }
.ring.r2 { width: 600px; height: 600px; border-color: rgba(139, 92, 246, .12); border-style: dashed; animation: spin 60s linear infinite reverse; }
@keyframes spin { to { transform: rotate(360deg); } }
.phone {
  position: relative; width: 300px; height: 620px; border-radius: 48px; padding: 12px;
  background: linear-gradient(160deg, #20232e, #0c0d13 40%, #191b24);
  box-shadow: 0 0 0 1px rgba(255,255,255,.12) inset, 0 40px 120px -20px rgba(0,0,0,.9), 0 0 80px -10px rgba(34, 211, 238, .35);
}
.screen { position: relative; height: 100%; border-radius: 37px; overflow: hidden; background: #000; }
/* call screen: a real call recorded on an iPhone (2:03-2:19.5, 1.5x, debug HUD removed) */
.call-video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; background: #000; }

/* ---------- sections ---------- */
section { position: relative; }
.section { padding: 110px 0; }
.section-head { max-width: 760px; margin: 0 0 56px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head.center .eyebrow::after { content: ""; width: 22px; height: 1px; background: currentColor; opacity: .7; }
h2 { font-size: clamp(34px, 4.4vw, 58px); line-height: 1.03; letter-spacing: -.035em; margin: 18px 0 18px; font-weight: 780; }
.section-head p { color: var(--muted); font-size: 19px; margin: 0; }
.glass {
  position: relative; background: linear-gradient(180deg, rgba(255,255,255,.055), rgba(255,255,255,.02));
  border: 1px solid var(--line); border-radius: var(--radius); padding: 30px;
}
.glass::before {
  content: ""; position: absolute; inset: -1px; border-radius: inherit; padding: 1px; pointer-events: none;
  background: linear-gradient(140deg, rgba(34, 211, 238, .45), transparent 35%, transparent 65%, rgba(139, 92, 246, .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 .3s;
}
.glass:hover::before { opacity: 1; }
.glass h3 { font-size: 21px; letter-spacing: -.02em; margin: 0 0 10px; }
.glass p { color: var(--muted); margin: 0; font-size: 16px; }
.num { font: 600 13px/1 var(--mono); color: var(--cyan); letter-spacing: .14em; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }

/* how it works */
.steps { counter-reset: s; }
.step { padding-top: 34px; }
.step .ico { width: 54px; height: 54px; border-radius: 16px; display: grid; place-items: center; margin-bottom: 26px; background: rgba(34, 211, 238, .1); border: 1px solid rgba(34, 211, 238, .25); }
.step .ico svg { width: 26px; height: 26px; }
.step .num { position: absolute; top: 30px; right: 30px; }
.connector { height: 1px; background: linear-gradient(90deg, transparent, rgba(34, 211, 238, .5), transparent); margin: 0 0 18px; }

/* evolution timeline */
.evo { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: linear-gradient(180deg, rgba(139, 92, 246, .05), transparent); }
.track { display: grid; grid-template-columns: 160px 1fr; gap: 24px; align-items: center; padding: 26px 0; }
.track + .track { border-top: 1px dashed var(--line); }
.track-label { font: 600 12px/1.5 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--dim); }
.track-items { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.t-item { padding: 12px 18px; border-radius: 14px; border: 1px solid var(--line); background: var(--panel); min-width: 120px; }
.t-item small { display: block; font: 600 11px/1 var(--mono); color: var(--dim); letter-spacing: .1em; margin-bottom: 6px; }
.t-item b { font-size: 16px; }
.t-item em { font-style: normal; color: var(--muted); font-size: 14px; margin-left: 6px; }
.t-item.now { border-color: rgba(60, 240, 165, .5); background: rgba(60, 240, 165, .08); box-shadow: 0 0 40px -10px rgba(60, 240, 165, .5); }
.t-item.now small { color: var(--mint); }
.t-arrow { color: var(--dim); }
.evo-quote { margin: 40px 0 0; font-size: clamp(22px, 2.4vw, 30px); letter-spacing: -.02em; line-height: 1.3; max-width: 900px; }
.evo-quote span { color: var(--muted); }

/* problem */
.problem .glass { padding: 26px; }
.problem .glass h3 { font-size: 18px; }

/* features */
.feature .ico { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; margin-bottom: 22px; background: linear-gradient(140deg, rgba(60, 240, 165, .16), rgba(139, 92, 246, .16)); border: 1px solid var(--line-2); }
.feature .ico svg { width: 22px; height: 22px; }
.feature.big { grid-column: span 2; display: grid; grid-template-columns: 1fr 1fr; gap: 30px; align-items: center; }
.pipeline { display: flex; flex-direction: column; gap: 8px; }
.pipe { display: flex; align-items: center; gap: 14px; padding: 12px 16px; border-radius: 14px; background: rgba(0,0,0,.25); border: 1px solid var(--line); font-size: 14px; }
.pipe b { font: 650 12px/1 var(--mono); letter-spacing: .12em; color: var(--cyan); width: 66px; }
.pipe span { color: var(--muted); }
.pipe.own { border-color: rgba(60, 240, 165, .35); }
.pipe.own b { color: var(--mint); }
.pipe i { margin-left: auto; font: 600 10px/1 var(--mono); font-style: normal; letter-spacing: .1em; color: var(--mint); padding: 4px 7px; border-radius: 6px; background: rgba(60, 240, 165, .1); }

/* use cases */
.use .tag { display: inline-block; font: 600 11px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; padding: 6px 9px; border-radius: 7px; margin-bottom: 18px; background: rgba(139, 92, 246, .16); color: #c4b5fd; }
.use .tag.soon { background: rgba(255,255,255,.06); color: var(--muted); }
.use h3 { font-size: 23px; }
.use blockquote { margin: 22px 0 0; padding: 14px 16px; border-radius: 14px; background: rgba(0,0,0,.25); border: 1px solid var(--line); font-size: 14px; color: var(--muted); }
.use blockquote b { color: var(--text); font-weight: 600; }

/* roadmap */
.roadmap { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; position: relative; }
.roadmap::before { content: ""; position: absolute; left: 0; right: 0; top: 11px; height: 2px; background: linear-gradient(90deg, var(--mint), var(--cyan) 30%, rgba(139, 92, 246, .6) 60%, rgba(255,255,255,.08)); }
.rm { padding: 40px 22px 0 0; position: relative; }
.rm::before { content: ""; position: absolute; top: 4px; left: 0; width: 16px; height: 16px; border-radius: 50%; background: var(--bg); border: 2px solid var(--cyan); }
.rm.live::before { background: var(--mint); border-color: var(--mint); box-shadow: 0 0 20px var(--mint); }
.rm small { font: 600 11px/1 var(--mono); letter-spacing: .14em; color: var(--dim); }
.rm.live small { color: var(--mint); }
.rm h3 { font-size: 20px; margin: 12px 0 8px; letter-spacing: -.02em; }
.rm p { color: var(--muted); font-size: 15px; margin: 0; }
.fine { color: var(--dim); font-size: 13px; margin-top: 36px; }

/* trust */
.trust-grid .glass { padding: 26px; }
.trust-grid .badge { display: inline-flex; align-items: center; gap: 8px; font: 600 11px/1 var(--mono); letter-spacing: .12em; color: var(--mint); margin-bottom: 16px; }
.trust-grid .badge::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.trust-links { margin-top: 26px; color: var(--muted); font-size: 15px; }
.trust-links a { color: var(--text); text-underline-offset: 3px; text-decoration-color: rgba(255,255,255,.3); }

/* waitlist */
.waitlist-card {
  display: grid; grid-template-columns: .9fr 1.1fr; gap: 50px; padding: 54px; border-radius: 32px; border: 1px solid var(--line-2);
  background: radial-gradient(90% 120% at 0% 0%, rgba(139, 92, 246, .18), transparent 55%), radial-gradient(80% 100% at 100% 100%, rgba(34, 211, 238, .14), transparent 55%), rgba(255,255,255,.025);
}
.waitlist-card h2 { margin-top: 18px; }
.perks { list-style: none; padding: 0; margin: 28px 0 0; display: grid; gap: 14px; }
.perks li { display: flex; gap: 12px; color: var(--muted); }
.perks li::before { content: ""; flex: none; width: 20px; height: 20px; margin-top: 3px; border-radius: 6px; background: rgba(60, 240, 165, .15) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 10.5l3 3 7-7' fill='none' stroke='%233cf0a5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 16px no-repeat; }
.form { display: grid; gap: 16px; }
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field label, .field .label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 7px; font-weight: 550; }
.field input[type=text], .field input[type=email], .field input[type=url], .field select, .field textarea {
  width: 100%; padding: 13px 15px; border-radius: 13px; border: 1px solid var(--line-2); background: rgba(0,0,0,.35); color: var(--text);
  font: 16px/1.3 var(--sans); outline: none; transition: border-color .2s, box-shadow .2s;
}
.field select { appearance: none; -webkit-appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%239aa3b8' stroke-width='1.6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 15px center; background-size: 12px; padding-right: 38px; }
.field select option { background: #0b0d16; }
.field textarea { min-height: 84px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: rgba(34, 211, 238, .7); box-shadow: 0 0 0 4px rgba(34, 211, 238, .14); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips input { position: absolute; opacity: 0; pointer-events: none; }
.chips label { margin: 0; padding: 10px 15px; border-radius: 999px; border: 1px solid var(--line-2); background: rgba(0,0,0,.3); color: var(--muted); font-size: 14px; cursor: pointer; transition: all .2s; }
.chips input:checked + label { color: #03120c; background: var(--grad); border-color: transparent; font-weight: 650; }
.chips input:focus-visible + label { box-shadow: 0 0 0 3px rgba(34, 211, 238, .5); }
.creator-only[hidden] { display: none; }
.check { display: flex; gap: 11px; align-items: flex-start; font-size: 14px; color: var(--muted); cursor: pointer; }
.check input { margin-top: 3px; width: 17px; height: 17px; accent-color: var(--cyan); flex: none; }
.check a { color: var(--text); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-status { display: none; padding: 13px 16px; border-radius: 13px; font-size: 15px; }
.form-status.err { display: block; background: rgba(255, 59, 79, .12); border: 1px solid rgba(255, 59, 79, .35); color: #ffb4bd; }
.success { text-align: center; padding: 40px 10px; }
.success[hidden] { display: none; }
.success .tick { width: 76px; height: 76px; border-radius: 50%; margin: 0 auto 22px; display: grid; place-items: center; background: var(--grad); box-shadow: 0 0 60px -6px rgba(60, 240, 165, .7); }
.success .tick svg { width: 34px; height: 34px; }
.success h3 { font-size: 28px; letter-spacing: -.02em; margin: 0 0 10px; }
.success p { color: var(--muted); margin: 0; }

/* footer */
footer { border-top: 1px solid var(--line); padding: 48px 0 56px; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; gap: 30px; justify-content: space-between; flex-wrap: wrap; align-items: flex-start; }
footer nav { display: flex; gap: 20px; flex-wrap: wrap; }
footer nav a { text-decoration: none; }
footer nav a:hover { color: var(--text); }
footer .tagline { margin: 10px 0 0; color: var(--dim); }

/* reveal on scroll */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s ease, transform .8s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- responsive ---------- */
@media (max-width: 1020px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .stage { min-height: 600px; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .feature.big { grid-column: span 2; }
  .waitlist-card { grid-template-columns: 1fr; padding: 34px; }
  .roadmap { grid-template-columns: repeat(2, 1fr); row-gap: 30px; }
  .roadmap::before { display: none; }
}
@media (max-width: 760px) {
  .nav-links { display: none; }
  .nav .btn { margin-left: auto; }
  .hero { padding-top: 48px; }
  .stats { grid-template-columns: repeat(2, auto); }
  .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; }
  .feature.big { grid-column: auto; grid-template-columns: 1fr; }
  .track { grid-template-columns: 1fr; gap: 12px; }
  .t-arrow { display: none; }
  .form .row { grid-template-columns: 1fr; }
  .waitlist-card { padding: 26px 20px; }
  .section { padding: 80px 0; }
  .ring.r2 { display: none; }
  .roadmap { grid-template-columns: 1fr; }
}
@media (max-width: 380px) {
  .phone { width: 270px; height: 560px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}
.waitlist-card .section-head-p { color: var(--muted); font-size: 18px; margin: 0; }
.optional { color: var(--dim); font-weight: 400; }
.form[hidden] { display: none; }