/* UniVentureAI — site styles
   Identity taken from the Telegram Mini App: cream paper, lapis doorway blue,
   Georgia-like serif headings, Uzbek line motif. */

:root{
  --paper:#FBF7EE;
  --paper-2:#F3ECDD;
  --white:#FFFFFF;
  --ink:#0D1B4C;
  --ink-2:#1B2A5E;
  --lapis:#1E44B0;
  --royal:#0B55D9;
  --gold:#A9864F;
  --gold-soft:#E9DCC2;
  --teal:#0C7774;
  --teal-soft:#DDF1EE;
  --muted:#5D6879;
  --line:rgba(13,27,76,.13);
  --line-strong:rgba(13,27,76,.24);
  --serif:"Source Serif 4", Georgia, "Times New Roman", serif;
  --sans:Inter, ui-sans-serif, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono:ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --r-sm:8px;
  --r:14px;
  --wrap:1160px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{font-family:var(--sans);font-size:1.0625rem;line-height:1.65;color:var(--ink);background:var(--paper);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
button{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--royal);outline-offset:3px;border-radius:4px}
::selection{background:var(--gold-soft)}
.wrap{width:min(var(--wrap),calc(100% - 40px));margin:0 auto}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

h1,h2,h3{font-family:var(--serif);font-weight:600;color:var(--ink);letter-spacing:-.015em}
h1{font-size:clamp(2.35rem,4.5vw,3.7rem);line-height:1.06;letter-spacing:-.022em}
h2{font-size:clamp(1.95rem,3.4vw,2.85rem);line-height:1.1}
h3{font-size:1.28rem;line-height:1.25}
p{max-width:68ch}
.lead{font-size:1.18rem;line-height:1.6;color:var(--ink-2)}
.muted{color:var(--muted)}
.small{font-size:.92rem}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:0 20px;border-radius:10px;font-weight:650;font-size:1rem;text-decoration:none;border:1px solid transparent;cursor:pointer;transition:background .15s ease,border-color .15s ease,transform .15s ease}
.btn-primary{background:var(--royal);color:#fff}
.btn-primary:hover{background:#0847b8}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--ink)}
.btn-ghost:hover{background:var(--white);border-color:var(--ink)}
.btn svg{width:18px;height:18px;flex:0 0 18px}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(251,247,238,.92);backdrop-filter:saturate(1.2) blur(10px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--serif);font-weight:700;font-size:1.25rem;text-decoration:none;color:var(--ink)}
.brand img{width:34px;height:34px;border-radius:9px}
.nav-links{display:flex;gap:2px;align-items:center;list-style:none}
.nav-links a{display:block;padding:8px 11px;border-radius:8px;text-decoration:none;font-size:.93rem;font-weight:550;color:var(--ink-2)}
.nav-links a:hover,.nav-links a[aria-current="page"]{background:var(--paper-2);color:var(--ink)}
.nav-cta{min-height:40px;padding:0 15px;font-size:.93rem}
.nav-toggle{display:none;background:none;border:1px solid var(--line-strong);border-radius:8px;width:42px;height:42px;cursor:pointer}
@media (max-width:980px){
  .nav-toggle{display:grid;place-items:center}
  .nav-links{position:absolute;top:68px;left:0;right:0;flex-direction:column;align-items:stretch;padding:10px 20px 18px;background:var(--paper);border-bottom:1px solid var(--line);display:none}
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 10px;font-size:1rem}
  .nav-cta{display:none}
}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section.tight{padding:72px 0}
.section.alt{background:var(--white);border-block:1px solid var(--line)}
.section.dark{background:var(--ink);color:#E8ECF7}
.section.dark h2,.section.dark h3{color:#fff}
.section.dark .muted{color:#A9B3CF}
.sec-head{max-width:760px;margin-bottom:48px}
.sec-head .req{display:inline-block;margin-bottom:14px;font-size:.88rem;font-weight:650;color:var(--teal)}
.section.dark .sec-head .req{color:#7FD6CF}
.sec-head p{margin-top:14px}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:72px 0 88px}
.hero::before{content:"";position:absolute;right:-180px;top:-160px;width:620px;height:620px;background:url("/assets/motif.webp") center/contain no-repeat;opacity:.55;pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center}
.hero h1{max-width:17ch}
.hero .lead{margin-top:22px;max-width:56ch}
.hero-ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.hero-facts{display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:30px;list-style:none;font-size:.95rem;color:var(--muted)}
.hero-facts li{display:flex;align-items:center;gap:8px}
.hero-facts li::before{content:"";width:7px;height:7px;border-radius:2px;background:var(--gold);transform:rotate(45deg)}

/* signature: the doorway arch holding the real product */
.arch{position:relative;justify-self:center;width:min(100%,420px);aspect-ratio:420/560;padding:22px 22px 0;border-radius:210px 210px 6px 6px;background:var(--lapis);box-shadow:inset 0 0 0 6px #2A54C6,inset 0 0 0 7px rgba(255,255,255,.18),0 30px 60px -30px rgba(13,27,76,.55)}
.arch::after{content:"";position:absolute;left:-14px;right:-14px;bottom:-14px;height:14px;background:#17388F;border-radius:0 0 6px 6px}
.arch-opening{position:relative;height:100%;border-radius:190px 190px 0 0;overflow:hidden;background:linear-gradient(180deg,#FFF6DE 0%,#F6EAD0 100%);display:flex;justify-content:center;align-items:flex-start;padding-top:64px}
.arch-opening img{width:76%;border-radius:24px;border:7px solid #0E1630;box-shadow:0 18px 40px rgba(13,27,76,.28)}
@media (prefers-reduced-motion:no-preference){
  .arch-opening img{animation:rise 1.1s cubic-bezier(.2,.7,.2,1) .15s both}
  @keyframes rise{from{transform:translateY(60px);opacity:0}to{transform:translateY(0);opacity:1}}
}
.arch-caption{margin-top:30px;text-align:center;font-size:.9rem;color:var(--muted)}
@media (max-width:900px){.hero-grid{grid-template-columns:1fr}.hero h1{max-width:18ch}.arch{width:min(100%,360px)}}

/* ---------- problem -> solution ---------- */
.ps{display:grid;grid-template-columns:1fr 64px 1fr;gap:0;align-items:stretch}
.ps-col{padding:32px;border-radius:var(--r);border:1px solid var(--line)}
.ps-col.problem{background:var(--paper)}
.ps-col.solution{background:var(--ink);color:#E8ECF7;border-color:var(--ink)}
.ps-col.solution h3{color:#fff}
.ps-col h3{font-size:1.5rem;margin-bottom:18px}
.ps-list{list-style:none;display:grid;gap:18px}
.ps-list b{display:block;font-weight:650;margin-bottom:2px}
.ps-col.problem .ps-list span{color:var(--muted)}
.ps-col.solution .ps-list span{color:#B9C3E0}
.ps-arrow{display:grid;place-items:center;color:var(--gold)}
.ps-arrow svg{width:34px;height:34px}
@media (max-width:860px){.ps{grid-template-columns:1fr}.ps-arrow{height:56px}.ps-arrow svg{transform:rotate(90deg)}}

.compare{margin-top:40px;overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:var(--white)}
.compare table{width:100%;border-collapse:collapse;min-width:620px}
.compare th,.compare td{text-align:left;padding:15px 20px;border-bottom:1px solid var(--line);font-size:.98rem;vertical-align:top}
.compare tr:last-child td{border-bottom:0}
.compare thead th{font-weight:650;background:var(--paper);font-size:.92rem;color:var(--muted)}
.compare thead th.us{color:var(--royal)}
.compare td.us{font-weight:600;color:var(--ink)}
.compare td:first-child{color:var(--muted);width:24%}

/* ---------- tools ---------- */
.tool-groups{display:grid;grid-template-columns:1fr 1fr;gap:36px 56px}
@media (max-width:860px){.tool-groups{grid-template-columns:1fr}}
.tool-group h3{font-family:var(--serif);font-size:1.35rem;font-weight:600;padding-bottom:10px;border-bottom:2px solid var(--ink)}
.tools{display:grid}
.tool{display:grid;grid-template-columns:48px 1fr;gap:16px;align-items:start;padding:16px 0;border-bottom:1px solid var(--line)}
.tool img{width:48px;height:48px;border-radius:11px}
.tool b{font-weight:650;line-height:1.3}
.tool small{font-size:.84rem;color:var(--muted);margin-left:8px}
.tool p{font-size:.95rem;line-height:1.5;color:var(--muted);margin-top:3px}
.venture{display:grid;grid-template-columns:1fr 280px;gap:36px;align-items:center;margin-top:44px;padding:32px;border-radius:var(--r);background:var(--paper-2);border:1px solid var(--line)}
.venture img{border-radius:18px;border:6px solid #0E1630;max-height:480px;width:100%;object-fit:cover;object-position:top}
@media (max-width:760px){.venture{grid-template-columns:1fr}.venture img{max-width:260px}}

/* screens strip */
.screens{display:flex;gap:18px;overflow-x:auto;padding:6px 2px 18px;scroll-snap-type:x mandatory}
.screens figure{flex:0 0 220px;scroll-snap-align:start}
.screens img{width:220px;border-radius:18px;border:5px solid #0E1630}
.screens figcaption{margin-top:10px;font-size:.9rem;color:var(--muted)}

/* ---------- team ---------- */
.team-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
@media (max-width:820px){.team-grid{grid-template-columns:1fr}}
.member{display:grid;gap:14px;padding:26px;border:1px solid var(--line);border-radius:var(--r);background:var(--white)}
.member-top{display:flex;gap:14px;align-items:center}
.avatar{width:62px;height:62px;flex:0 0 62px;border-radius:31px 31px 6px 6px;background:var(--lapis);color:#fff;display:grid;place-items:center;font-family:var(--serif);font-size:1.35rem;font-weight:700;overflow:hidden}
.avatar img{width:100%;height:100%;object-fit:cover}
.member h3{font-size:1.22rem}
.member .role{color:var(--teal);font-weight:600;font-size:.95rem}
.member ul{list-style:none;display:flex;flex-wrap:wrap;gap:6px}
.member li{padding:4px 10px;border-radius:6px;background:var(--paper);border:1px solid var(--line);font-size:.86rem}
.member .links{display:flex;flex-wrap:wrap;gap:14px;font-size:.93rem;font-weight:600}
.member .links a{color:var(--royal);text-decoration:none}
.member .links a:hover{text-decoration:underline}
.member p{font-size:.96rem;color:var(--muted)}

.stack{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:22px}
.stack-col{padding:20px;border-radius:var(--r);border:1px solid var(--line);background:var(--white)}
.stack-col h4{font-size:.95rem;font-weight:650;margin-bottom:10px}
.stack-col ul{list-style:none;display:grid;gap:7px;font-size:.93rem;color:var(--ink-2)}
.stack-col li span{color:var(--muted);font-size:.84rem;display:block}
@media (max-width:900px){.stack{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.stack{grid-template-columns:1fr}}
.subhead{font-family:var(--sans);font-size:1.05rem;font-weight:650;margin:52px 0 6px;letter-spacing:0}

.proj-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.proj-links a{display:inline-flex;align-items:center;gap:8px;padding:10px 14px;border-radius:10px;border:1px solid var(--line-strong);background:var(--white);text-decoration:none;font-weight:600;font-size:.95rem}
.proj-links a:hover{border-color:var(--ink)}
.proj-links small{color:var(--muted);font-weight:500}

/* ---------- why us ---------- */
.why{display:grid;grid-template-columns:repeat(2,1fr);gap:0;border-top:1px solid var(--line)}
.why-item{padding:28px 28px 28px 0;border-bottom:1px solid var(--line)}
.why-item:nth-child(even){padding-left:28px;border-left:1px solid var(--line)}
.why-item h3{margin-bottom:8px}
.why-item p{color:var(--muted);font-size:1rem}
.why-item .proof{display:block;margin-top:10px;font-size:.88rem;font-weight:600;color:var(--teal)}
@media (max-width:760px){.why{grid-template-columns:1fr}.why-item:nth-child(even){padding-left:0;border-left:0}}

/* ---------- roadmap ---------- */
.roadmap{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:0;counter-reset:stage;position:relative}
.roadmap::before{content:"";position:absolute;left:0;right:0;top:27px;height:2px;background:var(--line-strong)}
.stage{position:relative;padding:0 18px 0 0}
.stage-mark{position:relative;width:56px;height:56px;border-radius:28px 28px 6px 6px;display:grid;place-items:center;background:var(--paper);border:2px solid var(--line-strong);font-family:var(--serif);font-weight:700;font-size:1.2rem;color:var(--muted)}
.stage.done .stage-mark{background:var(--white);border-color:var(--lapis);color:var(--lapis)}
.stage.now .stage-mark{background:var(--lapis);border-color:var(--lapis);color:#fff;box-shadow:0 0 0 6px rgba(30,68,176,.15)}
.stage .en{display:block;margin-top:18px;font-size:.85rem;color:var(--muted)}
.stage h3{margin-top:2px}
.stage .when{display:block;font-size:.88rem;color:var(--gold);font-weight:600;margin-top:4px}
.stage ul{margin-top:12px;padding-left:18px;display:grid;gap:6px;font-size:.95rem;color:var(--ink-2)}
.now-tag{display:inline-block;margin-top:10px;padding:3px 10px;border-radius:6px;background:var(--teal-soft);color:var(--teal);font-weight:650;font-size:.82rem}
@media (max-width:860px){
  .roadmap{grid-template-columns:1fr;gap:30px}
  .roadmap::before{left:27px;right:auto;top:0;bottom:0;width:2px;height:auto}
  .stage{display:grid;grid-template-columns:56px 1fr;gap:0 18px;padding:0}
  .stage .en{margin-top:0}
  .stage>*:not(.stage-mark){grid-column:2}
  .stage-mark{grid-row:1/span 6}
}

/* ---------- plan / architecture ---------- */
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;align-items:stretch;margin:6px 0 10px}
.flow-step{position:relative;padding:18px 16px;border-radius:var(--r);background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14)}
.flow-step b{display:block;color:#fff;font-weight:650;margin-bottom:6px}
.flow-step span{display:block;font-size:.88rem;line-height:1.5;color:#B9C3E0}
.flow-step:not(:last-child)::after{content:"";position:absolute;right:-9px;top:50%;width:8px;height:8px;border-top:2px solid #7FD6CF;border-right:2px solid #7FD6CF;transform:translateY(-50%) rotate(45deg);z-index:1}
@media (max-width:980px){.flow{grid-template-columns:1fr}.flow-step:not(:last-child)::after{right:50%;top:auto;bottom:-9px;transform:translateX(50%) rotate(135deg)}}

.ai-table{margin-top:34px;overflow-x:auto;border:1px solid rgba(255,255,255,.14);border-radius:var(--r)}
.ai-table table{width:100%;border-collapse:collapse;min-width:640px}
.ai-table th,.ai-table td{text-align:left;padding:14px 18px;border-bottom:1px solid rgba(255,255,255,.1);font-size:.95rem;vertical-align:top}
.ai-table thead th{color:#A9B3CF;font-weight:600;font-size:.88rem}
.ai-table td:first-child{color:#fff;font-weight:600;white-space:nowrap}
.ai-table td{color:#C9D1E8}
.ai-table tr:last-child td{border-bottom:0}
.badge{display:inline-block;padding:2px 8px;border-radius:5px;font-size:.78rem;font-weight:650;margin-left:6px;vertical-align:1px}
.badge.live{background:rgba(127,214,207,.16);color:#7FD6CF}
.badge.next{background:rgba(233,220,194,.14);color:#E9DCC2}

.phases{list-style:none;display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:22px}
.phase{padding:24px;border-radius:var(--r);background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.14)}
.phase .when{font-size:.88rem;font-weight:650;color:#E9DCC2}
.phase h3{margin:4px 0 12px;font-size:1.25rem}
.phase ul{padding-left:18px;display:grid;gap:6px;font-size:.95rem;color:#C9D1E8}
.phase .kpi{margin-top:14px;padding-top:12px;border-top:1px dashed rgba(255,255,255,.18);font-size:.88rem;color:#A9B3CF}
.phase .kpi b{color:#7FD6CF;font-weight:600}
@media (max-width:820px){.phases{grid-template-columns:1fr}}

.biz{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:22px}
.biz div{padding:22px;border-radius:var(--r);background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.14)}
.biz b{display:block;font-family:var(--serif);font-size:1.5rem;color:#fff;font-weight:600}
.biz span{display:block;margin-top:6px;font-size:.93rem;color:#B9C3E0}
@media (max-width:820px){.biz{grid-template-columns:1fr}}

.risks{margin-top:22px;display:grid;grid-template-columns:repeat(2,1fr);gap:0;border-top:1px solid rgba(255,255,255,.14)}
.risks div{padding:18px 18px 18px 0;border-bottom:1px solid rgba(255,255,255,.14);font-size:.95rem;color:#C9D1E8}
.risks div:nth-child(even){padding-left:18px;border-left:1px solid rgba(255,255,255,.14)}
.risks b{display:block;color:#fff;font-weight:600;margin-bottom:3px}
@media (max-width:760px){.risks{grid-template-columns:1fr}.risks div:nth-child(even){padding-left:0;border-left:0}}

/* ---------- demo teaser ---------- */
.teaser{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.teaser-frame{position:relative;border-radius:var(--r);overflow:hidden;aspect-ratio:16/9;background:var(--ink) url("/assets/doorway.webp") center 30%/cover no-repeat;display:grid;place-items:center;text-decoration:none}
.teaser-frame::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(13,27,76,.15),rgba(13,27,76,.75))}
.play{position:relative;width:76px;height:76px;border-radius:50%;background:#fff;display:grid;place-items:center;box-shadow:0 12px 30px rgba(0,0,0,.3)}
.play svg{width:28px;height:28px;margin-left:4px;color:var(--royal)}
.teaser-frame .label{position:absolute;left:18px;bottom:16px;color:#fff;font-weight:600}
@media (max-width:820px){.teaser{grid-template-columns:1fr}}

/* ---------- FAQ ---------- */
.faq-list{max-width:820px;display:grid;gap:10px}
.faq-list details{border:1px solid var(--line);border-radius:var(--r);background:var(--white)}
.faq-list summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:16px;padding:18px 20px;font-weight:600}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{content:"+";font-size:1.3rem;line-height:1;color:var(--royal);transition:transform .2s ease}
.faq-list details[open] summary::after{transform:rotate(45deg)}
.faq-list details p{padding:0 20px 18px;color:var(--muted)}

/* ---------- final + footer ---------- */
.final{position:relative;overflow:hidden;padding:96px 0;background:#F9F4EA;border-top:1px solid var(--line)}
.final::after{content:"";position:absolute;right:4%;bottom:0;width:280px;height:420px;background:url("/assets/doorway.webp") center bottom/contain no-repeat;mix-blend-mode:multiply;pointer-events:none}
.final .wrap{position:relative;z-index:1}
.final h2{max-width:20ch}
.final p{margin-top:14px}
.final .hero-ctas{margin-top:26px}
@media (max-width:760px){.final::after{opacity:.18}}

footer{background:var(--ink);color:#B9C3E0;padding:48px 0 30px;font-size:.95rem}
.foot{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px}
footer .brand{color:#fff}
footer h4{color:#fff;font-size:.95rem;margin-bottom:10px}
footer ul{list-style:none;display:grid;gap:6px}
footer a{text-decoration:none;color:#B9C3E0}
footer a:hover{color:#fff}
.foot-bottom{margin-top:36px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:.88rem}
@media (max-width:760px){.foot{grid-template-columns:1fr}}

/* ---------- chatbot widget ---------- */
.cb-launch{position:fixed;right:20px;bottom:20px;z-index:60;display:flex;align-items:center;gap:10px;height:54px;padding:0 18px 0 14px;border-radius:27px;border:0;background:var(--royal);color:#fff;font-weight:650;cursor:pointer;box-shadow:0 14px 34px rgba(11,85,217,.35)}
.cb-launch svg{width:24px;height:24px}
.cb-panel{position:fixed;right:20px;bottom:86px;z-index:61;width:min(380px,calc(100vw - 24px));height:min(560px,calc(100vh - 120px));display:none;flex-direction:column;border-radius:16px;background:var(--white);border:1px solid var(--line-strong);box-shadow:0 30px 70px rgba(13,27,76,.28);overflow:hidden}
.cb-panel.open{display:flex}
.cb-head{display:flex;align-items:center;gap:10px;padding:14px 16px;background:var(--ink);color:#fff}
.cb-head img{width:32px;height:32px;border-radius:8px}
.cb-head b{display:block;font-size:.98rem}
.cb-head small{display:block;font-size:.78rem;color:#A9B3CF}
.cb-close{margin-left:auto;background:none;border:0;color:#fff;cursor:pointer;width:34px;height:34px;border-radius:8px;font-size:1.3rem}
.cb-close:hover{background:rgba(255,255,255,.12)}
.cb-body{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:10px;background:var(--paper)}
.msg{max-width:88%;padding:10px 13px;border-radius:12px;font-size:.93rem;line-height:1.5;white-space:pre-line}
.msg.bot{align-self:flex-start;background:var(--white);border:1px solid var(--line);border-bottom-left-radius:4px}
.msg.me{align-self:flex-end;background:var(--royal);color:#fff;border-bottom-right-radius:4px}
.msg a{color:var(--royal);font-weight:600}
.cb-chips{display:flex;flex-wrap:wrap;gap:6px;padding:10px 12px;border-top:1px solid var(--line);background:var(--white)}
.cb-chips button{border:1px solid var(--line-strong);background:var(--paper);border-radius:16px;padding:6px 11px;font-size:.82rem;cursor:pointer}
.cb-chips button:hover{border-color:var(--royal);color:var(--royal)}
.cb-form{display:flex;gap:8px;padding:10px 12px 12px;background:var(--white)}
.cb-form input{flex:1;min-width:0;height:42px;padding:0 12px;border-radius:10px;border:1px solid var(--line-strong);font:inherit;font-size:.95rem;background:var(--paper)}
.cb-form button{height:42px;padding:0 14px;border-radius:10px;border:0;background:var(--royal);color:#fff;font-weight:650;cursor:pointer}
.cb-note{padding:0 12px 10px;font-size:.74rem;color:var(--muted);background:var(--white)}
@media (max-width:520px){.cb-launch span{display:none}.cb-launch{padding:0 15px}}

/* ---------- demo page ---------- */
.demo-hero{padding:56px 0 30px}
.demo-hero p{margin-top:14px}
.player{position:relative;border-radius:var(--r);overflow:hidden;background:var(--ink);aspect-ratio:16/9;border:1px solid var(--line)}
.player iframe,.player video{position:absolute;inset:0;width:100%;height:100%;border:0;background:#000}
.player-empty{position:absolute;inset:0;display:grid;place-items:center;text-align:center;padding:30px;color:#E8ECF7;background:radial-gradient(ellipse at 50% 120%,rgba(30,68,176,.75),transparent 60%),var(--ink)}
.player-empty .arch-mini{width:90px;height:120px;margin:0 auto 18px;border-radius:45px 45px 4px 4px;background:var(--lapis);box-shadow:inset 0 0 0 5px #2A54C6;display:grid;place-items:center}
.player-empty .arch-mini svg{width:30px;height:30px;color:#fff;margin-left:4px}
.player-empty b{display:block;font-family:var(--serif);font-size:1.5rem;color:#fff;font-weight:600}
.player-empty span{display:block;margin-top:6px;color:#A9B3CF;font-size:.95rem}
.demo-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:40px;margin-top:40px;align-items:start}
@media (max-width:900px){.demo-grid{grid-template-columns:1fr}}
.chapters{list-style:none;display:grid;gap:0;border-top:1px solid var(--line);margin-top:18px}
.chapters li{border-bottom:1px solid var(--line)}
.chapters button{display:grid;grid-template-columns:64px 1fr;gap:12px;width:100%;text-align:left;padding:13px 4px;background:none;border:0;cursor:pointer}
.chapters button:hover{background:var(--white)}
.chapters time{font-family:var(--mono);font-size:.9rem;color:var(--royal);font-weight:600;padding-top:1px}
.chapters b{display:block;font-weight:600}
.chapters span{display:block;font-size:.93rem;color:var(--muted)}
.proto{padding:26px;border-radius:var(--r);background:var(--ink);color:#E8ECF7}
.proto h3{color:#fff}
.proto p{margin-top:8px;color:#B9C3E0;font-size:.97rem}
.proto .btn{margin-top:18px;width:100%}
.proto ol{margin-top:20px;padding-left:20px;display:grid;gap:8px;font-size:.95rem;color:#C9D1E8}
.proto .status{display:inline-flex;align-items:center;gap:8px;font-size:.88rem;font-weight:600;color:#7FD6CF}
.proto .status::before{content:"";width:8px;height:8px;border-radius:50%;background:#2FD4A6;box-shadow:0 0 0 4px rgba(47,212,166,.2)}
.side-card{margin-top:16px;padding:22px;border-radius:var(--r);border:1px solid var(--line);background:var(--white)}
.side-card h3{font-size:1.1rem;margin-bottom:8px}
.side-card ul{padding-left:18px;display:grid;gap:6px;font-size:.95rem;color:var(--ink-2)}

/* API docs */
.endpoints{border:1px solid var(--line);border-radius:var(--r);overflow-x:auto;background:var(--white)}
.endpoints table{width:100%;border-collapse:collapse;min-width:640px}
.endpoints th,.endpoints td{text-align:left;padding:12px 16px;border-bottom:1px solid var(--line);font-size:.94rem;vertical-align:top}
.endpoints tr:last-child td{border-bottom:0}
.endpoints thead th{background:var(--paper);font-size:.86rem;color:var(--muted);font-weight:600}
.endpoints code{font-family:var(--mono);font-size:.86rem}
.m{display:inline-block;min-width:46px;padding:2px 6px;border-radius:5px;font-family:var(--mono);font-size:.78rem;font-weight:700;text-align:center}
.m.post{background:#E3ECFF;color:#0B55D9}
.m.get{background:var(--teal-soft);color:var(--teal)}
.code-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:22px}
@media (max-width:900px){.code-grid{grid-template-columns:1fr}}
.code{border-radius:var(--r);background:#0E1630;color:#D7DEF5;overflow:hidden}
.code-head{display:flex;justify-content:space-between;align-items:center;padding:10px 14px;border-bottom:1px solid rgba(255,255,255,.1);font-size:.85rem;color:#A9B3CF}
.code-head button{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);color:#fff;border-radius:6px;padding:4px 10px;font-size:.8rem;cursor:pointer}
.code pre{margin:0;padding:16px;overflow-x:auto;font-family:var(--mono);font-size:.84rem;line-height:1.6}
.code .k{color:#7FD6CF}.code .s{color:#E9DCC2}.code .c{color:#7D88A8}
.api-steps{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:6px;counter-reset:a}
.api-steps li{counter-increment:a;padding:18px;border:1px solid var(--line);border-radius:var(--r);background:var(--white);font-size:.95rem;color:var(--ink-2)}
.api-steps li::before{content:counter(a);display:grid;place-items:center;width:28px;height:28px;border-radius:14px 14px 4px 4px;background:var(--lapis);color:#fff;font-weight:700;font-size:.85rem;margin-bottom:10px}
@media (max-width:820px){.api-steps{grid-template-columns:1fr}}

@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* solo team layout */
.team-grid.solo{grid-template-columns:1fr}
.member.wide{grid-template-columns:1.1fr .9fr;gap:30px;padding:32px}
.member.wide .member-side{display:grid;gap:18px;align-content:start}
.member h4{font-size:.92rem;font-weight:650;color:var(--muted);margin-bottom:8px}
.member ol.roles{list-style:none;display:grid;gap:0}
.member ol.roles li{padding:9px 0;border:0;border-bottom:1px solid var(--line);border-radius:0;background:none;font-size:.95rem}
.member ol.roles li b{font-weight:600}
@media (max-width:820px){.member.wide{grid-template-columns:1fr}}