/* SaveVidr design system — light, corporate, ad-friendly */
:root{
  --bg:#ffffff; --soft:#f6f8fc; --soft2:#eef2f9; --ink:#0b1324; --ink2:#334155; --muted:#64748b; --faint:#64748b;
  --line:#e6eaf2; --line2:#d7deea;
  --brand:#1d4ed8; --brand-600:#1e40af; --brand-50:#eef4ff; --brand-100:#dbe7ff;
  --accent:#0ea5e9; --ok:#047857; --ok-50:#ecfdf5; --err:#dc2626; --err-50:#fef2f2; --warn:#b45309;
  --radius:14px; --radius-lg:20px;
  --shadow-sm:0 1px 2px rgba(15,23,42,.05);
  --shadow:0 1px 2px rgba(15,23,42,.04),0 8px 24px -8px rgba(15,23,42,.10);
  --shadow-lg:0 2px 4px rgba(15,23,42,.04),0 24px 48px -16px rgba(29,78,216,.18);
  --ring:0 0 0 4px rgba(29,78,216,.14);
  --font:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  color-scheme:light;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;overflow-x:hidden}
body{font-family:var(--font);background:var(--bg);color:var(--ink);line-height:1.6;font-size:16px;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.narrow{max-width:860px;margin:0 auto;padding:0 20px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:8px;top:-60px;background:var(--ink);color:#fff;padding:8px 12px;border-radius:8px;z-index:100}
.skip:focus{top:8px}
[dir=rtl] .flip{transform:scaleX(-1)}

/* ---------------------------------------------------------------- header */
.hdr{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.92);backdrop-filter:saturate(1.6) blur(12px);-webkit-backdrop-filter:saturate(1.6) blur(12px);border-bottom:1px solid var(--line)}
.hdr .container{display:flex;align-items:center;gap:24px;height:64px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.02em;color:var(--ink)}
.logo:hover{text-decoration:none}
.logo svg{width:30px;height:30px;flex:none}
.logo b{color:var(--brand);font-weight:800}
.nav{display:flex;gap:2px;margin-inline-start:12px}
.nav>li{list-style:none;position:relative}
.nav>li>a,.nav>li>button{display:flex;align-items:center;gap:6px;padding:8px 12px;border-radius:10px;font-size:14.5px;font-weight:600;color:var(--ink2)}
.nav>li>a:hover,.nav>li>button:hover,.nav>li:focus-within>button{background:var(--soft);color:var(--ink);text-decoration:none}
.nav .chev{width:14px;height:14px;opacity:.6}
.mega{position:absolute;top:calc(100% + 8px);inset-inline-start:-12px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-lg);padding:18px;display:none;min-width:560px;z-index:50}
.nav>li:hover .mega,.nav>li:focus-within .mega{display:grid;grid-template-columns:repeat(3,1fr);gap:2px 10px}
.mega:before{content:"";position:absolute;top:-10px;left:0;right:0;height:10px}
.mega a{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:10px;color:var(--ink2);font-size:14px;font-weight:500}
.mega a:hover{background:var(--soft);color:var(--ink);text-decoration:none}
.mega .all{grid-column:1/-1;border-top:1px solid var(--line);margin-top:8px;padding-top:12px;color:var(--brand);font-weight:600}
.pi{width:22px;height:22px;border-radius:6px;display:inline-grid;place-items:center;color:#fff;font-size:11px;font-weight:800;flex:none;letter-spacing:-.02em}
.pi::before{content:attr(data-l)}
.mega.two{min-width:380px}
.nav>li:hover .mega.two,.nav>li:focus-within .mega.two{grid-template-columns:repeat(2,1fr)}
.mlang{display:none}
.hdr-right{margin-inline-start:auto;display:flex;align-items:center;gap:8px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 16px;border-radius:12px;font-weight:650;font-size:14.5px;line-height:1.2;transition:background .15s,box-shadow .15s,transform .1s,color .15s;white-space:nowrap}
.btn:hover{text-decoration:none}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 1px 2px rgba(29,78,216,.3),inset 0 1px 0 rgba(255,255,255,.12)}
.btn-primary:hover{background:var(--brand-600)}
.btn-ghost{color:var(--ink2);border:1px solid var(--line2);background:#fff}
.btn-ghost:hover{background:var(--soft);color:var(--ink)}
.btn-sm{padding:7px 12px;font-size:13.5px;border-radius:10px}
.lang-sel{position:relative}
.lang-sel select{appearance:none;-webkit-appearance:none;border:1px solid var(--line2);border-radius:10px;padding:7px 30px 7px 32px;font-size:13.5px;font-weight:600;color:var(--ink2);background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2.5'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E") no-repeat right 10px center;cursor:pointer}
.lang-sel svg{position:absolute;inset-inline-start:10px;top:50%;transform:translateY(-50%);width:15px;height:15px;color:var(--muted);pointer-events:none}
#installBtn{display:none}
.menu-btn{display:none;width:40px;height:40px;border-radius:10px;place-items:center;color:var(--ink2)}
@media(max-width:960px){
  .nav{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;padding:10px 20px 16px;margin:0;box-shadow:var(--shadow)}
  .nav.open{display:flex}
  .nav>li:hover .mega,.nav>li:focus-within .mega{display:none}
  .nav>li.open .mega{display:grid!important;position:static;min-width:0;box-shadow:none;border:0;padding:4px 0 8px;grid-template-columns:repeat(2,1fr)!important}
  .nav>li>button,.nav>li>a{min-height:44px;width:100%;text-align:start}
  .mega a{min-height:40px}
  .mlang{display:block;padding:10px 0 0}
  .mlang select{width:100%;min-height:44px;border:1px solid var(--line2);border-radius:10px;padding:8px 12px;font-size:15px;background:#fff}
  .menu-btn{display:grid}
  .lang-sel{display:none}
}

/* ---------------------------------------------------------------- hero + tool */
.hero{position:relative;padding:44px 0 36px;background:
  radial-gradient(900px 340px at 50% -80px,rgba(29,78,216,.10),transparent 70%),
  linear-gradient(180deg,#f8faff 0%,#fff 100%);border-bottom:1px solid var(--line)}
.hero:before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(15,23,42,.07) 1px,transparent 1px);background-size:22px 22px;mask-image:linear-gradient(180deg,#000 0%,transparent 75%);-webkit-mask-image:linear-gradient(180deg,#000 0%,transparent 75%);pointer-events:none}
.hero .container{position:relative;text-align:center}
.crumbs{display:flex;flex-wrap:wrap;justify-content:center;gap:6px;font-size:13px;color:var(--muted);margin-bottom:14px;list-style:none}
.crumbs li:not(:last-child):after{content:"›";margin-inline-start:6px;color:var(--faint)}
.crumbs a{color:var(--muted)}
.eyebrow-pill{display:inline-flex;align-items:center;gap:8px;padding:5px 12px 5px 6px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:12.5px;font-weight:600;color:var(--ink2);box-shadow:var(--shadow-sm)}
.eyebrow-pill .dot{display:inline-flex;align-items:center;gap:5px;background:var(--ok-50);color:var(--ok);padding:2px 8px;border-radius:999px;font-weight:700}
.eyebrow-pill .dot:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 3px rgba(5,150,105,.18)}
.hero h1{font-size:clamp(30px,4.6vw,50px);line-height:1.08;letter-spacing:-.035em;font-weight:800;margin:16px auto 12px;max-width:860px}
.hero h1 .hl{color:var(--brand)}
.hero .lede{font-size:clamp(16px,1.8vw,18.5px);color:var(--ink2);max-width:680px;margin:0 auto 26px}

.tool{max-width:820px;margin:0 auto;text-align:start}
.tool-box{display:flex;align-items:center;gap:8px;background:#fff;border:1.5px solid var(--line2);border-radius:18px;padding:7px;box-shadow:var(--shadow-lg);transition:border-color .2s,box-shadow .2s}
.tool-box:focus-within{border-color:var(--brand);box-shadow:var(--shadow-lg),var(--ring)}
.tool-box .ico{width:42px;height:42px;display:grid;place-items:center;color:var(--faint);flex:none}
.tool-box textarea{flex:1;min-width:0;border:0;outline:0;resize:none;background:transparent;font-size:16.5px;line-height:1.5;padding:11px 0;height:48px;max-height:180px;color:var(--ink);font-family:inherit}
.tool-box textarea::placeholder{color:var(--faint)}
.tool-box .paste{display:flex;align-items:center;gap:6px;padding:10px 12px;border-radius:12px;font-size:14px;font-weight:600;color:var(--ink2)}
.tool-box .paste:hover{background:var(--soft)}
.tool-box .go{padding:14px 24px;border-radius:13px;font-size:16px}
.tool-box .go[disabled]{opacity:.75;pointer-events:none}
.tool-meta{display:flex;flex-wrap:wrap;justify-content:center;gap:6px 18px;margin-top:14px;font-size:13px;color:var(--muted)}
.tool-meta span{display:inline-flex;align-items:center;gap:6px}
.tool-meta svg{width:14px;height:14px;color:var(--ok)}
.tool-legal{font-size:12px;color:var(--faint);text-align:center;margin-top:8px}
.tool-legal a{color:inherit;text-decoration:underline}
@media(max-width:640px){
  .tool-box{flex-wrap:wrap;padding:6px;border-radius:16px}
  .tool-box .ico{display:none}
  .tool-box textarea{flex-basis:calc(100% - 100px);padding:12px 10px}
  .tool-box .go{flex:1 0 100%}
}
.spin{width:17px;height:17px;border-radius:50%;border:2.5px solid rgba(255,255,255,.4);border-top-color:#fff;animation:sp .7s linear infinite;flex:none}
.spin.dark{border-color:rgba(29,78,216,.2);border-top-color:var(--brand)}
@keyframes sp{to{transform:rotate(360deg)}}

.alert{display:none;align-items:flex-start;gap:10px;margin-top:14px;padding:12px 14px;border-radius:12px;font-size:14.5px;font-weight:550;text-align:start}
.alert.show{display:flex;animation:fade .25s ease}
.alert-err{background:var(--err-50);color:var(--err);border:1px solid #fecaca}
.alert svg{flex:none;margin-top:2px}
@keyframes fade{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* result card */
.result{margin-top:18px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);overflow:hidden;animation:fade .3s ease}
.media{display:flex;gap:16px;padding:16px;border-bottom:1px solid var(--line);align-items:center}
.thumb{position:relative;width:184px;flex:none;aspect-ratio:16/9;border-radius:12px;overflow:hidden;background:var(--soft2)}
.thumb img{width:100%;height:100%;object-fit:cover}
.thumb .dur{position:absolute;inset-inline-end:6px;bottom:6px;background:rgba(2,6,23,.78);color:#fff;font-size:11.5px;font-weight:700;padding:2px 6px;border-radius:6px}
.media h2{font-size:17px;line-height:1.35;letter-spacing:-.01em;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.media .sub{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-top:6px;font-size:13.5px;color:var(--muted)}
.tag{display:inline-flex;align-items:center;font-size:11.5px;font-weight:700;padding:2px 8px;border-radius:999px;background:var(--brand-50);color:var(--brand)}
@media(max-width:560px){.media{flex-direction:column;align-items:stretch}.thumb{width:100%}}
.tabs{display:flex;gap:4px;padding:12px 16px 0;border-bottom:1px solid var(--line);overflow-x:auto}
.tab{padding:10px 14px;font-weight:650;font-size:14px;color:var(--muted);border-bottom:2px solid transparent;margin-bottom:-1px;display:flex;align-items:center;gap:7px;white-space:nowrap}
.tab[aria-selected=true]{color:var(--brand);border-bottom-color:var(--brand)}
.tab:hover{color:var(--ink)}
.opts{padding:12px 16px 16px;display:grid;gap:8px}
.opt{display:flex;align-items:center;gap:12px;padding:11px 12px 11px 14px;border:1px solid var(--line);border-radius:12px;transition:border-color .15s,background .15s}
.opt:hover{border-color:var(--brand-100);background:#fbfcff}
.opt.rec{border-color:var(--brand-100);background:var(--brand-50)}
.opt .q{font-weight:700;font-size:14.5px;display:flex;gap:8px;align-items:center}
.opt .n{font-size:12.5px;color:var(--muted)}
.badge{font-size:10px;font-weight:800;letter-spacing:.04em;padding:2px 6px;border-radius:5px;background:var(--brand);color:#fff}
.badge.rec{background:var(--ok)}
.opt .sz{margin-inline-start:auto;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap}
.dl{min-width:128px;position:relative;overflow:hidden}
.dl .bar{position:absolute;inset:0;width:0;background:rgba(255,255,255,.22);transition:width .4s}
.dl.done{background:var(--ok)}
.dl.err{background:var(--err)}
@media(max-width:480px){.opt .sz{display:none}.dl{min-width:108px}}
.opt select{border:1px solid var(--line2);border-radius:10px;padding:8px 10px;font-size:14px;background:#fff;max-width:220px}
.trim{display:flex;flex-wrap:wrap;gap:10px 16px;align-items:center;padding:12px 16px;background:var(--soft);border-top:1px solid var(--line);font-size:14px}
.switch{display:inline-flex;align-items:center;gap:10px;font-weight:650;cursor:pointer;user-select:none}
.switch input{appearance:none;-webkit-appearance:none;width:36px;height:20px;border-radius:999px;background:var(--line2);position:relative;cursor:pointer;transition:background .2s}
.switch input:after{content:"";position:absolute;top:2px;left:2px;width:16px;height:16px;border-radius:50%;background:#fff;box-shadow:var(--shadow-sm);transition:transform .2s}
.switch input:checked{background:var(--brand)}
.switch input:checked:after{transform:translateX(16px)}
[dir=rtl] .switch input:checked:after{transform:translateX(-16px)}
[dir=rtl] .switch input:after{left:auto;right:2px}
.trim .times{display:none;gap:10px;align-items:center}
.trim.on .times{display:flex}
.trim label{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:6px}
.trim input[type=text]{width:84px;border:1px solid var(--line2);border-radius:9px;padding:7px 9px;font-size:14px;font-variant-numeric:tabular-nums;background:#fff}
.after{display:none;padding:12px 16px;border-top:1px solid var(--line);background:var(--ok-50);font-size:14px;align-items:center;gap:10px;flex-wrap:wrap}
.after.show{display:flex}
.after b{color:var(--ok)}
.after .btn{margin-inline-start:auto}

/* list (playlist / batch) */
.list{max-height:520px;overflow:auto}
.li{display:flex;align-items:center;gap:12px;padding:10px 16px;border-bottom:1px solid var(--line)}
.li:last-child{border-bottom:0}
.li img,.li .ph{width:96px;aspect-ratio:16/9;border-radius:8px;object-fit:cover;background:var(--soft2);flex:none}
.li .t{flex:1;min-width:0;font-size:14px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.li .t small{display:block;font-weight:500;color:var(--muted);font-size:12.5px}
.li input[type=checkbox]{width:18px;height:18px;accent-color:var(--brand);flex:none}
.list-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:12px 16px;border-bottom:1px solid var(--line);background:var(--soft)}
.list-head select{border:1px solid var(--line2);border-radius:10px;padding:8px 10px;font-size:14px;background:#fff}
.list-head .grow{flex:1}
@media(max-width:560px){.li img,.li .ph{width:64px}}

/* skeleton */
.sk{background:linear-gradient(90deg,var(--soft2) 25%,#f7f9fd 50%,var(--soft2) 75%);background-size:200% 100%;animation:sh 1.2s infinite;border-radius:8px}
@keyframes sh{to{background-position:-200% 0}}

/* history */
.history{max-width:820px;margin:18px auto 0;text-align:start;display:none}
.history.show{display:block}
.history h3{font-size:13px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.history h3 button{font-size:12.5px;color:var(--brand);text-transform:none;letter-spacing:0;font-weight:600}
.hist{display:flex;gap:10px;overflow-x:auto;padding-bottom:6px;scrollbar-width:thin}
.hist a{flex:none;width:200px;display:flex;gap:10px;align-items:center;padding:8px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--ink);font-size:13px;font-weight:600}
.hist a:hover{border-color:var(--brand-100);text-decoration:none}
.hist img,.hist .ph{width:52px;aspect-ratio:16/9;border-radius:6px;object-fit:cover;background:var(--soft2);flex:none}
.hist span{overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;line-height:1.3}

/* ---------------------------------------------------------------- ads (CLS-safe) */
.ad{display:flex;justify-content:center;align-items:center;margin:28px auto;max-width:100%;overflow:hidden}
.ad-leader{min-height:100px}
@media(min-width:768px){.ad-leader{min-height:90px}}
.ad-rect{min-height:280px}
.ad-side{min-height:600px;position:sticky;top:88px}
.ad-label{display:block;text-align:center;font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--faint);margin-bottom:4px}
.ad.preview{background:repeating-linear-gradient(45deg,var(--soft),var(--soft) 10px,#fff 10px,#fff 20px);border:1px dashed var(--line2);border-radius:12px;color:var(--faint);font-size:12px;font-weight:600}

/* ---------------------------------------------------------------- content */
.section{padding:64px 0}
.section.alt{background:var(--soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.kicker{font-size:12.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--brand);margin-bottom:8px}
.h2{font-size:clamp(24px,3.2vw,34px);line-height:1.15;letter-spacing:-.025em;font-weight:800;margin-bottom:12px}
.center{text-align:center}
.lead{color:var(--ink2);font-size:17px;max-width:680px}
.center .lead{margin:0 auto}
.prose{font-size:16.5px;color:var(--ink2);overflow-wrap:anywhere}
.prose p{margin:0 0 16px}
.prose h2{font-size:26px;letter-spacing:-.02em;color:var(--ink);margin:36px 0 12px;line-height:1.2}
.prose h3{font-size:19px;color:var(--ink);margin:26px 0 8px}
.prose ul,.prose ol{margin:0 0 18px;padding-inline-start:22px}
.prose li{margin:6px 0}
.prose strong{color:var(--ink)}
.prose table{width:100%;border-collapse:collapse;margin:18px 0 22px;font-size:15px;border:1px solid var(--line);border-radius:12px;overflow:hidden;display:block;overflow-x:auto}
.prose th,.prose td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:start;vertical-align:top}
.prose th{background:var(--soft);color:var(--ink);font-weight:700}
.grid{display:grid;gap:16px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.g2,.g3,.g4{grid-template-columns:1fr}}
.tile{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm)}
.tile h3{font-size:16.5px;margin:12px 0 6px;letter-spacing:-.01em}
.tile p{color:var(--muted);font-size:14.5px}
.ti{width:40px;height:40px;border-radius:11px;display:grid;place-items:center;background:var(--brand-50);color:var(--brand)}
.steps{counter-reset:s;display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.step{position:relative;padding:22px 22px 20px;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}
.step:before{counter-increment:s;content:counter(s);display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:var(--brand);color:#fff;font-weight:800;font-size:14px;margin-bottom:12px}
.step p{color:var(--ink2);font-size:15px}
.checks{list-style:none;display:grid;gap:10px}
.checks li{display:flex;gap:10px;color:var(--ink2)}
.checks li:before{content:"";flex:none;width:20px;height:20px;margin-top:2px;border-radius:50%;background:var(--ok-50) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23059669' stroke-width='3.5' stroke-linecap='round'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") no-repeat center}
.checks.x li:before{background:var(--err-50) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='none' stroke='%23dc2626' stroke-width='3.5' stroke-linecap='round'%3E%3Cpath d='M6 6l12 12M18 6L6 18'/%3E%3C/svg%3E") no-repeat center}
.split{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media(max-width:800px){.split{grid-template-columns:1fr}}
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.panel h3{font-size:17px;margin-bottom:14px}
.tbl{width:100%;border-collapse:collapse;font-size:15px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.tbl th,.tbl td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:start}
.tbl th{background:var(--soft);font-size:13px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}
.tbl tr:last-child td{border-bottom:0}
.tbl td:first-child{font-weight:650;color:var(--ink)}
.tbl-wrap{overflow-x:auto;border-radius:var(--radius)}

.faq{display:grid;gap:10px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:0 20px;transition:box-shadow .2s}
.faq details[open]{box-shadow:var(--shadow)}
.faq summary{list-style:none;cursor:pointer;padding:18px 0;font-weight:650;font-size:16px;display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"";flex:none;width:22px;height:22px;border-radius:50%;background:var(--soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%231d4ed8' stroke-width='3' stroke-linecap='round'%3E%3Cpath d='M12 5v14M5 12h14'/%3E%3C/svg%3E") no-repeat center;transition:transform .2s}
.faq details[open] summary:after{transform:rotate(45deg)}
.faq details p{padding:0 0 18px;color:var(--ink2)}

.links{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:10px}
.links a{display:flex;align-items:center;gap:10px;padding:12px 14px;background:#fff;border:1px solid var(--line);border-radius:12px;color:var(--ink);font-weight:600;font-size:14.5px;transition:border-color .15s,box-shadow .15s}
.links a:hover{border-color:var(--brand-100);box-shadow:var(--shadow);text-decoration:none}
.links a small{display:block;color:var(--muted);font-weight:500;font-size:12.5px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips a{padding:8px 14px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink2);font-size:14px;font-weight:600}
.chips a:hover{border-color:var(--brand);color:var(--brand);text-decoration:none}

.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden}
.stats div{background:#fff;padding:22px;text-align:center}
.stats b{display:block;font-size:28px;letter-spacing:-.02em;color:var(--ink)}
.stats span{font-size:13.5px;color:var(--muted)}
@media(max-width:700px){.stats{grid-template-columns:repeat(2,1fr)}}

.layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start}
@media(max-width:1000px){.layout{grid-template-columns:1fr}.layout aside{display:none}}
.toc{border:1px solid var(--line);border-radius:var(--radius);padding:18px;background:#fff;margin-bottom:20px}
.toc b{display:block;font-size:12.5px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:8px}
.toc a{display:block;padding:5px 0;font-size:14px;color:var(--ink2)}
.byline{display:flex;gap:10px;align-items:center;flex-wrap:wrap;justify-content:center;font-size:13.5px;color:var(--muted)}

.cta{background:linear-gradient(135deg,#0b1f5c 0%,#1d4ed8 60%,#0ea5e9 130%);color:#fff;border-radius:24px;padding:44px 32px;text-align:center;position:relative;overflow:hidden}
.cta h2{font-size:clamp(24px,3vw,32px);letter-spacing:-.02em;margin-bottom:8px}
.cta p{opacity:.85;margin-bottom:22px}
.cta .btn{background:#fff;color:var(--brand-600)}
.cta .btn:hover{background:#eef4ff}
.cta .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
.cta .btn-ghost:hover{background:rgba(255,255,255,.1)}
.bm{display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:12px;background:var(--brand);color:#fff!important;font-weight:700;cursor:grab;border:2px dashed rgba(255,255,255,.5)}

/* ---------------------------------------------------------------- footer */
.ftr{background:#0b1324;color:#cbd5e1;padding:56px 0 28px;margin-top:0;font-size:14px}
.ftr a{color:#cbd5e1}
.ftr a:hover{color:#fff}
.ftr .cols{display:grid;grid-template-columns:1.4fr repeat(5,1fr);gap:28px}
.ftr h4{color:#fff;font-size:13px;text-transform:uppercase;letter-spacing:.08em;margin-bottom:12px}
.ftr ul{list-style:none;display:grid;gap:7px}
.ftr .logo{color:#fff;margin-bottom:12px}
.ftr .about{color:#94a3b8;max-width:300px}
.ftr .bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;border-top:1px solid #1e293b;margin-top:40px;padding-top:22px;color:#94a3b8;font-size:13px}
.ftr .langs{display:flex;flex-wrap:wrap;gap:6px 14px}
@media(max-width:1000px){.ftr .cols{grid-template-columns:repeat(3,1fr)}}
@media(max-width:600px){.ftr .cols{grid-template-columns:1fr 1fr}}

/* toast + install banner */
.toast{position:fixed;left:50%;bottom:20px;transform:translate(-50%,calc(100% + 40px));visibility:hidden;background:var(--ink);color:#fff;padding:12px 16px;border-radius:12px;font-weight:600;font-size:14px;box-shadow:var(--shadow-lg);transition:transform .3s cubic-bezier(.2,.8,.2,1);z-index:60;display:flex;gap:10px;align-items:center;max-width:calc(100% - 32px)}
.toast.show{transform:translate(-50%,0);visibility:visible}
.nudge{position:fixed;inset-inline-end:20px;bottom:20px;width:340px;max-width:calc(100% - 40px);background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-lg);padding:18px;z-index:55;display:none}
.nudge.show{display:block;animation:fade .3s ease}
.nudge h4{font-size:15.5px;margin-bottom:4px}
.nudge p{font-size:13.5px;color:var(--muted);margin-bottom:12px}
.nudge .row{display:flex;gap:8px;flex-wrap:wrap}
.nudge .x{position:absolute;top:10px;inset-inline-end:10px;width:28px;height:28px;border-radius:8px;color:var(--muted)}
.nudge .x:hover{background:var(--soft)}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
.upd{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--muted);margin:-14px auto 20px}
.prose a,.narrow.prose a{text-decoration:underline;text-decoration-color:var(--brand-100);text-underline-offset:3px}
.qa{border:1px solid var(--brand-100);background:linear-gradient(180deg,#f7faff,#fff);border-radius:16px;padding:20px 22px}
.qa-k{font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--brand);margin-bottom:4px}
.qa-q{font-size:19px;letter-spacing:-.01em;margin-bottom:6px}
.qa p{color:var(--ink2)}.qa ol{margin:10px 0 0;padding-inline-start:22px;color:var(--ink2)}.qa li{margin:4px 0}
.live-badge{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:700;padding:4px 10px;border-radius:999px;margin:0 auto 18px}
.live-badge.ok{background:var(--ok-50);color:var(--ok)}.live-badge.warn{background:#fffbeb;color:#b45309}
.term{border-inline-start:4px solid var(--brand);background:var(--brand-50);padding:16px 18px;border-radius:0 12px 12px 0;font-size:17px;color:var(--ink)}

.live-badge[hidden]{display:none}
.cnt{display:block;min-height:18px;text-align:center;font-size:12.5px;color:var(--muted);margin-top:6px}
.dir-auto{unicode-bidi:plaintext}
@media(max-width:600px){
  .nudge{inset-inline:0;bottom:0;width:auto;max-width:none;border-radius:16px 16px 0 0;padding:18px 18px calc(18px + env(safe-area-inset-bottom))}
  .footer a,.links a{min-height:40px}
}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}