/* MindU — landing page styles. Plain CSS, no build step. */
:root{
  --bg:#070B16; --bg2:#0A0E1A; --panel:#11162A; --panel2:#0E1324;
  --line:#1E2740; --line2:#232C46;
  --text:#F4F6FA; --muted:#9AA6BB; --muted2:#7C879B;
  --amber:#FF9A3C; --amber-l:#FFC477; --amber-d:#E07E26; --teal:#7FE3C2;
  --maxw:1120px; --radius:16px;
  --font:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* ---- nav ---- */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;display:flex;align-items:center;justify-content:space-between;
  padding:16px 24px;transition:.35s;border-bottom:1px solid transparent}
.nav.scrolled{background:rgba(7,11,22,.72);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);padding:12px 24px}
.brand{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:600;letter-spacing:-.01em}
.brand .u{color:var(--amber)}
.brand svg{width:30px;height:30px}
.nav-links{display:flex;gap:28px;font-size:15px;color:var(--muted)}
.nav-links a:hover{color:var(--text)}
.btn{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:500;border-radius:999px;
  padding:11px 22px;cursor:pointer;transition:.25s;border:1px solid transparent;white-space:nowrap}
.btn-primary{background:var(--amber);color:#2A1804;box-shadow:0 6px 30px rgba(255,154,60,.25)}
.btn-primary:hover{background:var(--amber-l);transform:translateY(-1px)}
.btn-ghost{border-color:var(--line2);color:var(--text);background:rgba(255,255,255,.02)}
.btn-ghost:hover{border-color:var(--amber);color:var(--amber-l)}

/* ---- hero ---- */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden}
#hero-canvas{position:absolute;inset:0;width:100%;height:100%;z-index:1}
.hero-photo{position:absolute;top:50%;right:-2%;transform:translateY(-50%);height:92%;width:auto;max-width:58%;
  object-fit:contain;z-index:2;mix-blend-mode:screen;pointer-events:none;animation:floaty 7s ease-in-out infinite;
  -webkit-mask-image:linear-gradient(to right,transparent,#000 26%);mask-image:linear-gradient(to right,transparent,#000 26%)}
.hero::after{content:"";position:absolute;inset:0;z-index:0;
  background:radial-gradient(ellipse at 65% 45%,rgba(255,154,60,.12),transparent 60%),
  linear-gradient(180deg,rgba(7,11,22,.15),rgba(7,11,22,.7))}
.hero-inner{position:relative;z-index:3;max-width:var(--maxw);margin:0 auto;padding:0 24px;width:100%}
@keyframes floaty{0%,100%{transform:translateY(-50%)}50%{transform:translateY(-54%)}}
.hero-inner>*{animation:rise .9s both}
.hero-inner>*:nth-child(2){animation-delay:.1s}
.hero-inner>*:nth-child(3){animation-delay:.2s}
.hero-inner>*:nth-child(4){animation-delay:.3s}
@keyframes rise{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:none}}
.eyebrow{font-size:14px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:18px}
.eyebrow.amber{color:var(--amber-l)}
.hero h1{font-size:clamp(40px,7vw,82px);line-height:1.02;font-weight:600;letter-spacing:-.02em}
.amber{color:var(--amber)}
.lede{font-size:clamp(16px,2vw,20px);color:var(--muted);max-width:620px;margin:24px 0 34px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}

/* ---- sections ---- */
.section{padding:110px 0;position:relative}
.section.alt{background:var(--bg2)}
.section-title{font-size:clamp(28px,4vw,46px);font-weight:600;letter-spacing:-.02em;line-height:1.1}
.section-title.center{text-align:center}
.section-sub{color:var(--muted);font-size:18px;max-width:680px;margin-top:16px}
.center{text-align:center}
.center .section-sub{margin-left:auto;margin-right:auto}
.narrow{max-width:760px;margin:0 auto}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.two-col p{color:var(--muted);font-size:18px;margin-top:16px}

/* stats */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:54px}
.stat{background:var(--panel);border:1px solid var(--line2);border-radius:var(--radius);padding:34px 28px;text-align:center}
.stat .num{display:block;font-size:clamp(38px,5vw,58px);font-weight:600;color:var(--amber);letter-spacing:-.02em}
.stat .label{display:block;color:var(--muted);font-size:15px;margin-top:12px}

/* barrier */
.barrier{background:radial-gradient(ellipse at 50% 30%,rgba(255,154,60,.10),transparent 55%),var(--bg)}
.big{font-size:clamp(36px,6vw,68px);font-weight:600;letter-spacing:-.02em;line-height:1.05;margin:14px 0 24px}
.barrier p{color:var(--muted);font-size:19px}
.barrier-visual{position:relative;height:460px}
#barrier-canvas{position:absolute;inset:0;width:100%;height:100%}
.barrier-fallback{display:none;position:absolute;inset:0;width:100%;height:100%;object-fit:contain;mix-blend-mode:screen}

/* cards 3 */
.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:54px}
.card{background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.01));
  border:1px solid var(--line2);border-radius:var(--radius);padding:32px 28px}
.card .ico{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:rgba(255,154,60,.12);color:var(--amber);margin-bottom:20px}
.card .ico svg{width:26px;height:26px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.card h3{font-size:21px;font-weight:600;margin-bottom:10px}
.card p{color:var(--muted);font-size:15.5px}

/* demo */
.demo{display:grid;grid-template-columns:1fr 360px;gap:60px;align-items:center}
.demo .copy h2{font-size:clamp(28px,4vw,42px);font-weight:600;letter-spacing:-.02em;line-height:1.1}
.demo .copy p{color:var(--muted);font-size:18px;margin-top:18px}
.phone{width:320px;margin:0 auto;background:#0B0F1C;border:1px solid var(--line2);border-radius:34px;padding:10px}
.screen{background:#070B16;border-radius:26px;padding:14px 14px 16px}
.pstatus{display:flex;justify-content:space-between;font-size:11px;color:var(--muted2);padding:2px 6px 10px}
.phead{display:flex;align-items:center;gap:10px;padding-bottom:12px;border-bottom:1px solid #1A2138}
.pav{width:34px;height:34px;border-radius:50%;background:#FFB259;display:flex;align-items:center;justify-content:center;color:#5A3208;font-weight:600}
.phn{font-size:14px;font-weight:600;color:var(--text)}
.pbadge{font-size:10px;color:var(--teal);background:#0F2A24;padding:3px 9px;border-radius:20px}
.thread{display:flex;flex-direction:column;gap:10px;padding:14px 2px 0}
.b-ai{align-self:flex-start;max-width:82%;background:#1A2138;color:#DCE3F0;font-size:13px;line-height:1.5;padding:9px 12px;border-radius:14px 14px 14px 4px}
.b-me{align-self:flex-end;max-width:84%;background:var(--amber);color:#3A2403;font-size:13px;line-height:1.5;padding:9px 12px;border-radius:14px 14px 4px 14px}
.engine{background:#10172B;border:1px solid #2A3556;border-radius:12px;padding:10px 12px}
.engine .eh{font-size:10px;letter-spacing:.05em;color:var(--amber-l);text-transform:uppercase;margin-bottom:8px}
.engine .row{display:flex;justify-content:space-between;font-size:12px;color:#AEB8CC;padding:2px 0}
.engine .hi{color:#FF8A6E;font-weight:600}.engine .ok{color:var(--teal)}
.pinput{display:flex;align-items:center;gap:8px;margin-top:14px;background:#11162A;border:1px solid var(--line2);border-radius:22px;padding:8px 8px 8px 14px}
.pinput span{flex:1;font-size:12px;color:var(--muted2)}
.psend{width:30px;height:30px;border-radius:50%;background:var(--amber);color:#3A2403;display:flex;align-items:center;justify-content:center}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:54px;counter-reset:s}
.step{background:var(--panel);border:1px solid var(--line2);border-radius:var(--radius);padding:28px 22px;position:relative}
.step .n{font-size:13px;font-weight:600;color:var(--amber);letter-spacing:.06em}
.step h3{font-size:18px;font-weight:600;margin:12px 0 8px}
.step p{color:var(--muted);font-size:14.5px}

/* privacy tiers */
.badge-pill{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--teal);
  border:1px solid rgba(127,227,194,.3);border-radius:999px;padding:6px 14px;margin-bottom:18px}
.tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:46px}
.tier{background:var(--panel);border:1px solid var(--line2);border-radius:var(--radius);padding:30px 26px}
.tier .t-no{font-size:13px;color:var(--amber-l);font-weight:600;letter-spacing:.05em}
.tier h3{font-size:20px;font-weight:600;margin:8px 0 12px}
.tier p{color:var(--muted);font-size:15px}

/* comparison */
.cmp{width:100%;border-collapse:collapse;margin-top:46px;font-size:15.5px}
.cmp th,.cmp td{padding:18px 20px;text-align:left;border-bottom:1px solid var(--line)}
.cmp th{color:var(--muted2);font-weight:500;font-size:14px}
.cmp td:first-child{color:var(--muted)}
.cmp .me{background:rgba(255,154,60,.06);color:var(--text);font-weight:500}
.cmp thead .me{color:var(--amber);font-weight:600;font-size:16px}

/* partners + cta */
.panel{background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.01));
  border:1px solid var(--line2);border-radius:24px;padding:54px 48px}
.cta{position:relative;text-align:center;padding:130px 0;overflow:hidden;
  background:radial-gradient(ellipse at 50% 60%,rgba(255,154,60,.16),transparent 60%),var(--bg)}
.cta-figure{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);height:135%;width:auto;
  object-fit:contain;z-index:0;mix-blend-mode:screen;opacity:.5;pointer-events:none}
.cta .container{position:relative;z-index:1}
.cta h2{font-size:clamp(34px,5.5vw,64px);font-weight:600;letter-spacing:-.02em;line-height:1.05;max-width:900px;margin:0 auto}
.cta p{color:var(--muted);font-size:19px;margin:22px auto 36px;max-width:560px}
.signup{display:flex;gap:12px;max-width:480px;margin:0 auto;flex-wrap:wrap;justify-content:center}
.signup input{flex:1;min-width:220px;background:var(--panel);border:1px solid var(--line2);color:var(--text);
  border-radius:999px;padding:13px 20px;font-size:15px;font-family:var(--font)}
.signup input:focus{outline:none;border-color:var(--amber)}
.signup .ok-msg{color:var(--teal);font-size:17px}

/* footer */
footer{background:var(--bg2);border-top:1px solid var(--line);padding:60px 0 40px}
.crisis{background:rgba(127,227,194,.06);border:1px solid rgba(127,227,194,.22);border-radius:var(--radius);
  padding:22px 26px;margin-bottom:46px;display:flex;gap:18px;align-items:flex-start}
.crisis .ci{color:var(--teal);flex:none;margin-top:2px}
.crisis strong{color:var(--text)}
.crisis p{color:var(--muted);font-size:15px}
.crisis a{color:var(--teal)}
.fcols{display:flex;justify-content:space-between;flex-wrap:wrap;gap:30px}
.fcols .col h4{font-size:13px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted2);margin-bottom:14px}
.fcols .col a{display:block;color:var(--muted);font-size:15px;margin-bottom:10px}
.fcols .col a:hover{color:var(--text)}
.fbottom{margin-top:46px;padding-top:24px;border-top:1px solid var(--line);color:var(--muted2);font-size:13px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* page (sub-pages) */
.page{padding:140px 0 90px;max-width:780px}
.page h1{font-size:clamp(32px,5vw,48px);font-weight:600;letter-spacing:-.02em;margin-bottom:10px}
.page h2{font-size:22px;font-weight:600;margin:36px 0 12px}
.page p,.page li{color:var(--muted);font-size:16.5px;margin-bottom:12px}
.page ul{padding-left:20px}
.page .lead{font-size:19px;color:var(--text)}
.back{display:inline-flex;align-items:center;gap:6px;color:var(--amber-l);font-size:15px;margin-bottom:30px}

/* reveal */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* responsive */
@media (max-width:900px){
  .two-col,.demo{grid-template-columns:1fr;gap:40px}
  .stats,.cards-3,.steps,.tiers{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr}
  .nav-links{display:none}
  .hero-photo{max-width:82%;right:-14%;opacity:.4}
  .cta-figure{opacity:.32}
  .barrier-visual{height:340px}
  .section{padding:80px 0}
  .panel{padding:36px 26px}
  .cmp{font-size:14px}.cmp th,.cmp td{padding:13px 12px}
}
@media (max-width:560px){.steps{grid-template-columns:1fr}}
@media (prefers-reduced-motion:reduce){
  #hero-canvas{display:none}
  #barrier-canvas{display:none}
  .barrier-fallback{display:block}
  .hero-photo{animation:none}
  .hero-inner>*{animation:none}
  .reveal{transition:none;opacity:1;transform:none}
  html{scroll-behavior:auto}
}