/* ============================================================
   Terminal4 Platform — design system v2
   Typography : Space Grotesk (display) / Inter (body) / JetBrains Mono
   Motion     : expo-out easing, staggered reveals, micro-interactions
   Themes     : five single-mode palettes — teal (default), phosphor,
                ember, crimson, ice. No light/dark split by design.
   ============================================================ */

/* ---------- Theme tokens ---------- */
:root,
[data-theme="teal"]{
  --bg:#070b12; --bg-deep:#060a10; --surface:#0d1420; --surface-2:#131c2e;
  --border:#1e2a3f; --border-soft:#182338; --well:#0a1018;
  --nav-bg:rgba(7,11,18,.8);
  --text:#e6edf5; --muted:#8b98ab; --faint:#5b6b80;
  --accent:#2dd4bf; --accent-2:#38bdf8;
  --success:#34d399; --danger:#f87171; --warn:#fbbf24;
  --on-accent:#04121a;
  --grad:linear-gradient(135deg,var(--accent) 0%,var(--accent-2) 100%);
}
[data-theme="phosphor"]{
  --bg:#050806; --bg-deep:#040604; --surface:#0a120c; --surface-2:#0f1a12;
  --border:#1c2f22; --border-soft:#16251b; --well:#071009;
  --nav-bg:rgba(5,8,6,.8);
  --text:#e8f5ec; --muted:#7fa88c; --faint:#55705e;
  --accent:#4ade80; --accent-2:#a7f3d0;
  --success:#22c55e; --danger:#fb7185; --warn:#fbbf24;
  --on-accent:#04120a;
  --grad:linear-gradient(135deg,var(--accent) 0%,var(--accent-2) 100%);
}
[data-theme="ember"]{
  --bg:#0b0906; --bg-deep:#080604; --surface:#14100a; --surface-2:#1c1710;
  --border:#2e2417; --border-soft:#241c11; --well:#100c07;
  --nav-bg:rgba(11,9,6,.8);
  --text:#f5ede2; --muted:#a89680; --faint:#7a6a52;
  --accent:#fbbf24; --accent-2:#f59e0b;
  --success:#a3e635; --danger:#f87171; --warn:#f87171;
  --on-accent:#1a1206;
  --grad:linear-gradient(135deg,var(--accent) 0%,var(--accent-2) 100%);
}
[data-theme="crimson"]{
  --bg:#0a0709; --bg-deep:#070506; --surface:#130d10; --surface-2:#1b1318;
  --border:#2c1f26; --border-soft:#241a20; --well:#100a0d;
  --nav-bg:rgba(10,7,9,.8);
  --text:#f5eaee; --muted:#a68e97; --faint:#6e5a63;
  --accent:#fb7185; --accent-2:#fda4af;
  --success:#34d399; --danger:#f43f5e; --warn:#fbbf24;
  --on-accent:#1c0a0f;
  --grad:linear-gradient(135deg,var(--accent) 0%,var(--accent-2) 100%);
}
[data-theme="ice"]{
  --bg:#060a0f; --bg-deep:#04070b; --surface:#0b1220; --surface-2:#101a2c;
  --border:#1d2c44; --border-soft:#172438; --well:#080e17;
  --nav-bg:rgba(6,10,15,.8);
  --text:#eaf2fb; --muted:#7e93ad; --faint:#55677e;
  --accent:#67e8f9; --accent-2:#22d3ee;
  --success:#34d399; --danger:#f87171; --warn:#fbbf24;
  --on-accent:#04121a;
  --grad:linear-gradient(135deg,var(--accent) 0%,var(--accent-2) 100%);
}

:root{
  --radius:14px; --radius-sm:9px;
  --font:'Inter',system-ui,-apple-system,'Segoe UI',sans-serif;
  --font-display:'Space Grotesk',var(--font);
  --mono:'JetBrains Mono','Cascadia Code',Consolas,monospace;
  --ease:cubic-bezier(.16,1,.3,1);
  --nav-h:64px;
}

/* ---------- Base ---------- */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:var(--font);line-height:1.65;font-size:16px;-webkit-font-smoothing:antialiased;transition:background .35s var(--ease),color .35s var(--ease)}
body::before{content:'';position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(900px 500px at 80% -10%,color-mix(in srgb,var(--accent) 9%,transparent),transparent 60%),
             radial-gradient(700px 420px at 10% 0%,color-mix(in srgb,var(--accent-2) 6%,transparent),transparent 60%)}
img,svg{display:block}
a{color:var(--accent);text-decoration:none;transition:color .15s var(--ease),opacity .15s var(--ease)}
a:hover{opacity:.85}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.container{max-width:1120px;margin:0 auto;padding:0 24px}
.mono{font-family:var(--mono)}
.text-muted{color:var(--muted)}
.text-gradient{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
::selection{background:color-mix(in srgb,var(--accent) 30%,transparent)}

h1,h2,h3,h4{font-family:var(--font-display);line-height:1.18;font-weight:700;letter-spacing:-.025em}
h1{font-size:clamp(2.2rem,5vw,3.6rem)}
h2{font-size:clamp(1.6rem,3vw,2.25rem)}
h3{font-size:1.15rem}
.section{padding:96px 0}
.section-head{max-width:640px;margin:0 auto 56px;text-align:center}
.section-head p{color:var(--muted);margin-top:14px;font-size:1.06rem}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.78rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin-bottom:16px}
.eyebrow::before{content:'';width:22px;height:2px;background:var(--grad);border-radius:2px}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:12px 24px;border-radius:11px;font-weight:600;font-size:.95rem;border:1px solid transparent;cursor:pointer;white-space:nowrap;font-family:var(--font);transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease),color .25s var(--ease),opacity .2s}
.btn-primary{background:var(--grad);color:var(--on-accent);box-shadow:0 4px 22px color-mix(in srgb,var(--accent) 26%,transparent)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 32px color-mix(in srgb,var(--accent) 38%,transparent)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--border)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);opacity:1;transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0) scale(.98)}
.btn-lg{padding:15px 30px;font-size:1.03rem;border-radius:13px}
.btn-sm{padding:8px 16px;font-size:.86rem;border-radius:9px}
.btn-block{width:100%}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none}

/* ---------- Nav ---------- */
.nav{position:sticky;top:0;z-index:100;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);background:var(--nav-bg);border-bottom:1px solid var(--border-soft);transition:box-shadow .3s var(--ease)}
.nav.scrolled{box-shadow:0 10px 34px rgba(0,0,0,.3)}
.nav-inner{height:var(--nav-h);display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-family:var(--font-display);font-size:1.2rem;color:var(--text);letter-spacing:-.02em}
.brand:hover{opacity:1}
.brand .t4{color:var(--accent)}
.nav-links{display:flex;gap:6px;margin-left:auto}
.nav-links a{color:var(--muted);font-weight:500;font-size:.94rem;padding:8px 13px;border-radius:9px;transition:.2s var(--ease)}
.nav-links a:hover{color:var(--text);background:var(--surface-2);opacity:1}
.nav-links a.active{color:var(--accent);background:color-mix(in srgb,var(--accent) 8%,transparent)}
.nav-cta{display:flex;gap:10px;align-items:center}
.nav-toggle{display:none;background:none;border:1px solid var(--border);color:var(--text);border-radius:9px;padding:7px 11px;font-size:1.15rem;cursor:pointer;line-height:1}

/* ---------- Hero ---------- */
.hero{padding:100px 0 72px;text-align:center}
.hero-badge,.hero h1,.hero p.lead,.hero-cta,.hero-note{animation:rise .75s var(--ease) both}
.hero-badge{animation-delay:.02s}
.hero h1{animation-delay:.1s}
.hero p.lead{animation-delay:.2s}
.hero-cta{animation-delay:.3s}
.hero-note{animation-delay:.38s}
@keyframes rise{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;border:1px solid var(--border);background:var(--surface);font-size:.85rem;color:var(--muted);margin-bottom:26px}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--success);box-shadow:0 0 10px var(--success);animation:pulse 2.4s ease-in-out infinite}
@keyframes pulse{50%{opacity:.45}}
.hero p.lead{max-width:620px;margin:22px auto 0;color:var(--muted);font-size:1.16rem}
.hero-cta{display:flex;gap:14px;justify-content:center;margin-top:36px;flex-wrap:wrap}
.hero-note{margin-top:14px;font-size:.84rem;color:var(--faint)}
.hero-stats{display:flex;justify-content:center;gap:52px;margin-top:64px;flex-wrap:wrap}
.stat{text-align:center}
.stat b{display:block;font-size:1.8rem;font-weight:700;font-family:var(--font-display);letter-spacing:-.02em;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{font-size:.85rem;color:var(--faint)}

/* ---------- Terminal mockup ---------- */
.term{background:var(--well);border:1px solid var(--border);border-radius:var(--radius);box-shadow:0 24px 70px rgba(0,0,0,.55),0 0 0 1px color-mix(in srgb,var(--accent) 5%,transparent);text-align:left;max-width:760px;margin:52px auto 0;overflow:hidden}
.term-bar{display:flex;align-items:center;gap:8px;padding:12px 16px;border-bottom:1px solid var(--border-soft);background:color-mix(in srgb,var(--well) 55%,var(--surface))}
.term-bar .dot{width:11px;height:11px;border-radius:50%}
.term-bar .dot:nth-child(1){background:#ff5f57}.term-bar .dot:nth-child(2){background:#febc2e}.term-bar .dot:nth-child(3){background:#28c840}
.term-bar .title{margin-left:auto;margin-right:auto;font-size:.78rem;color:var(--faint);font-family:var(--mono)}
.term-body{padding:20px 22px;font-family:var(--mono);font-size:.86rem;line-height:1.85;min-height:230px;white-space:pre-wrap}
.term-body .p{color:var(--accent)}
.term-body .c{color:var(--muted)}
.term-body .out{color:color-mix(in srgb,var(--text) 72%,var(--muted))}
.term-body .ok{color:var(--success)}
.term-body .cursor{display:inline-block;width:8px;height:16px;background:var(--accent);vertical-align:-3px;animation:blink 1.05s steps(1) infinite}
@keyframes blink{50%{opacity:0}}

/* ---------- Grids & cards ---------- */
.grid{display:grid;gap:20px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px;transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease)}
.card:hover{border-color:color-mix(in srgb,var(--accent) 35%,transparent);transform:translateY(-4px);box-shadow:0 16px 44px rgba(0,0,0,.35)}
.card .icon{width:46px;height:46px;border-radius:12px;background:color-mix(in srgb,var(--accent) 10%,transparent);border:1px solid color-mix(in srgb,var(--accent) 22%,transparent);display:flex;align-items:center;justify-content:center;margin-bottom:18px;color:var(--accent);transition:.3s var(--ease)}
.card:hover .icon{transform:scale(1.06);background:color-mix(in srgb,var(--accent) 16%,transparent)}
.card p{color:var(--muted);font-size:.95rem;margin-top:10px}
.card h3{margin-top:2px}

/* ---------- Steps ---------- */
.steps{counter-reset:step;display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.step{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:30px 26px 26px;transition:.3s var(--ease)}
.step:hover{border-color:color-mix(in srgb,var(--accent) 30%,transparent);transform:translateY(-3px)}
.step::before{counter-increment:step;content:counter(step);position:absolute;top:-16px;left:26px;width:34px;height:34px;border-radius:10px;background:var(--grad);color:var(--on-accent);font-weight:700;font-family:var(--font-display);display:flex;align-items:center;justify-content:center;font-size:.95rem;box-shadow:0 6px 18px color-mix(in srgb,var(--accent) 30%,transparent)}
.step h3{margin-bottom:8px}
.step p{color:var(--muted);font-size:.94rem}

/* ---------- Code block ---------- */
.code{background:var(--well);border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden}
.code .code-head{display:flex;justify-content:space-between;align-items:center;padding:9px 16px;border-bottom:1px solid var(--border-soft);font-size:.78rem;color:var(--faint);font-family:var(--mono)}
.code pre{padding:18px;font-family:var(--mono);font-size:.86rem;line-height:1.8;overflow-x:auto;color:color-mix(in srgb,var(--text) 80%,var(--muted))}
.code .p{color:var(--accent)}.code .flag{color:#c084fc}.code .str{color:var(--warn)}.code .cm{color:var(--faint)}

/* ---------- Download page ---------- */
.detect-banner{display:flex;align-items:center;gap:20px;background:linear-gradient(135deg,color-mix(in srgb,var(--accent) 10%,transparent),color-mix(in srgb,var(--accent-2) 5%,transparent));border:1px solid color-mix(in srgb,var(--accent) 30%,transparent);border-radius:var(--radius);padding:30px 34px;flex-wrap:wrap}
.detect-info{flex:1;min-width:240px}
.detect-info .os-name{font-size:1.35rem;font-weight:700;font-family:var(--font-display);margin-top:2px}
.detect-info .meta{color:var(--muted);font-size:.9rem;margin-top:4px;font-family:var(--mono)}
.os-icon{width:56px;height:56px;border-radius:14px;background:var(--surface-2);border:1px solid var(--border);display:flex;align-items:center;justify-content:center}
.dl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:34px}
.dl-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:26px}
.dl-card.current{border-color:var(--accent);box-shadow:0 0 0 1px color-mix(in srgb,var(--accent) 35%,transparent),0 12px 36px color-mix(in srgb,var(--accent) 12%,transparent)}
.dl-card .dl-head{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.dl-card .dl-head .name{font-weight:700;font-size:1.05rem}
.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:.7rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase}
.badge-reco{background:color-mix(in srgb,var(--accent) 14%,transparent);color:var(--accent);border:1px solid color-mix(in srgb,var(--accent) 30%,transparent)}
.badge-dim{background:var(--surface-2);color:var(--faint);border:1px solid var(--border)}
.file-row{display:flex;justify-content:space-between;align-items:center;padding:10px 0;border-top:1px solid var(--border-soft);gap:10px}
.file-row .fname{font-family:var(--mono);font-size:.8rem;color:var(--muted);word-break:break-all}
.file-row a{font-size:.84rem;font-weight:600;white-space:nowrap}
.checksum{background:var(--well);border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px 18px;font-family:var(--mono);font-size:.76rem;color:var(--muted);word-break:break-all;margin-top:8px}
.requirements{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:30px}
.req{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:20px}
.req b{display:block;margin-bottom:6px}
.req span{color:var(--muted);font-size:.9rem}

/* ---------- Docs ---------- */
.docs{display:grid;grid-template-columns:250px 1fr;gap:44px;align-items:start}
.docs-side{position:sticky;top:calc(var(--nav-h) + 24px)}
.docs-side a{display:block;padding:7px 14px;color:var(--muted);font-size:.92rem;border-radius:8px;border-left:2px solid transparent;transition:.2s var(--ease)}
.docs-side a:hover{color:var(--text);background:var(--surface)}
.docs-side a.active{color:var(--accent);border-left-color:var(--accent);background:color-mix(in srgb,var(--accent) 6%,transparent)}
.docs-side .group{font-size:.72rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--faint);margin:22px 0 8px;padding-left:14px}
.doc-section{margin-bottom:56px;scroll-margin-top:calc(var(--nav-h) + 24px)}
.doc-section h2{margin-bottom:16px}
.doc-section h3{margin:26px 0 10px}
.doc-section p{color:var(--muted);margin-bottom:14px}
.doc-section ul{margin:0 0 16px 20px;color:var(--muted)}
.doc-section li{margin-bottom:7px}
.doc-section code{font-family:var(--mono);font-size:.85em;background:var(--surface-2);border:1px solid var(--border);border-radius:6px;padding:2px 7px;color:var(--accent)}

/* ---------- Pricing ---------- */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
.plan{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:32px 28px;display:flex;flex-direction:column;position:relative;transition:.3s var(--ease)}
.plan:hover{transform:translateY(-4px)}
.plan.featured{border-color:var(--accent);box-shadow:0 0 0 1px color-mix(in srgb,var(--accent) 30%,transparent),0 20px 50px color-mix(in srgb,var(--accent) 10%,transparent)}
.plan .plan-tag{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--grad);color:var(--on-accent);font-size:.72rem;font-weight:700;padding:5px 15px;border-radius:999px;letter-spacing:.05em;text-transform:uppercase}
.plan .price{font-size:2.5rem;font-weight:700;font-family:var(--font-display);margin:16px 0 4px}
.plan .price small{font-size:.95rem;font-weight:500;color:var(--faint)}
.plan .desc{color:var(--muted);font-size:.92rem;margin-bottom:22px}
.plan ul{list-style:none;margin:0 0 26px;flex:1}
.plan li{display:flex;gap:10px;align-items:flex-start;color:var(--muted);font-size:.93rem;padding:7px 0}
.plan li svg{flex-shrink:0;margin-top:4px;color:var(--success)}
.faq{max-width:760px;margin:64px auto 0}
.faq details{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:12px;overflow:hidden;transition:.25s var(--ease)}
.faq details[open]{border-color:color-mix(in srgb,var(--accent) 30%,transparent)}
.faq summary{padding:18px 22px;cursor:pointer;font-weight:600;font-size:.97rem;list-style:none;display:flex;justify-content:space-between;align-items:center;transition:color .2s}
.faq summary:hover{color:var(--accent)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:'+';font-size:1.3rem;color:var(--accent);font-weight:400}
.faq details[open] summary::after{content:'–'}
.faq .faq-body{padding:0 22px 20px;color:var(--muted);font-size:.94rem}

/* ---------- Community / marketplace ---------- */
.item-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;display:flex;flex-direction:column;gap:12px;transition:.3s var(--ease)}
.item-card:hover{border-color:color-mix(in srgb,var(--accent) 30%,transparent);transform:translateY(-3px)}
.item-card .item-top{display:flex;align-items:center;gap:12px}
.item-card .item-icon{width:42px;height:42px;border-radius:11px;display:flex;align-items:center;justify-content:center;background:var(--surface-2);border:1px solid var(--border);font-size:1.1rem}
.item-card h3{font-size:1rem}
.item-card .by{color:var(--faint);font-size:.8rem}
.item-card p{color:var(--muted);font-size:.9rem;flex:1}
.item-card .item-foot{display:flex;justify-content:space-between;align-items:center;font-size:.82rem;color:var(--faint)}
.item-card .item-foot b{color:var(--accent);font-weight:600}
.pill-row{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-bottom:40px}
.pill{padding:8px 18px;border-radius:999px;border:1px solid var(--border);background:var(--surface);color:var(--muted);font-size:.87rem;cursor:pointer;transition:.2s var(--ease)}
.pill:hover{border-color:var(--accent);color:var(--accent)}
.pill.active{background:color-mix(in srgb,var(--accent) 12%,transparent);border-color:var(--accent);color:var(--accent)}

/* ---------- CTA band ---------- */
.cta-band{background:linear-gradient(135deg,color-mix(in srgb,var(--accent) 12%,transparent),color-mix(in srgb,var(--accent-2) 6%,transparent));border:1px solid color-mix(in srgb,var(--accent) 25%,transparent);border-radius:20px;padding:64px 40px;text-align:center}
.cta-band p{color:var(--muted);max-width:520px;margin:14px auto 30px}

/* ---------- Contact ---------- */
.contact-wrap{display:grid;grid-template-columns:1fr 1.4fr;gap:44px;align-items:start}
.contact-info .item{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--border-soft)}
.contact-info .item .ic{width:40px;height:40px;border-radius:10px;background:var(--surface-2);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;color:var(--accent);flex-shrink:0}
.contact-info .item b{display:block;font-size:.95rem}
.contact-info .item span{color:var(--muted);font-size:.88rem}
form.t4-form{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:32px}
.field{margin-bottom:18px}
.field label{display:block;font-size:.88rem;font-weight:600;margin-bottom:7px}
.field input,.field textarea,.field select{width:100%;background:var(--well);border:1px solid var(--border);border-radius:10px;padding:12px 14px;color:var(--text);font-family:var(--font);font-size:.94rem;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 14%,transparent)}
.field textarea{min-height:130px;resize:vertical}
.form-note{font-size:.82rem;color:var(--faint);margin-top:12px}

/* ---------- Legal ---------- */
.legal h3{font-size:1.05rem;margin:36px 0 12px;color:var(--accent)}
.legal h3:first-child{margin-top:0}
.legal p{color:var(--muted);font-size:.95rem;line-height:1.75;margin-bottom:10px}

/* ---------- Admin console ---------- */
.admin-head{padding:80px 0 10px}
.admin-head .lead{color:var(--muted);max-width:560px;margin-top:12px;font-size:1.05rem}
.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:30px;margin-top:28px}
.panel-head{display:flex;justify-content:space-between;align-items:baseline;gap:16px;flex-wrap:wrap;margin-bottom:6px}
.panel-head p{color:var(--muted);font-size:.92rem;margin-top:8px;max-width:560px}
.theme-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(196px,1fr));gap:18px;margin-top:24px}
.theme-card{position:relative;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:20px;cursor:pointer;text-align:left;font-family:var(--font);color:var(--text);transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease)}
.theme-card:hover{transform:translateY(-4px);border-color:color-mix(in srgb,var(--accent) 40%,var(--border))}
.theme-card.active{border-color:var(--accent);box-shadow:0 0 0 1px color-mix(in srgb,var(--accent) 45%,transparent),0 16px 40px color-mix(in srgb,var(--accent) 12%,transparent)}
.theme-card .t-name{font-weight:700;font-family:var(--font-display);font-size:1.02rem}
.theme-card .t-desc{font-size:.8rem;color:var(--muted);margin-top:4px;min-height:40px}
.theme-swatches{display:flex;gap:6px;margin:16px 0 14px}
.theme-swatches .sw{flex:1;height:32px;border-radius:8px;border:1px solid rgba(255,255,255,.07)}
.t-state{position:absolute;top:16px;right:16px;font-size:.66rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--accent);display:none;align-items:center;gap:5px}
.theme-card.active .t-state{display:inline-flex}
.t-state .tick{width:15px;height:15px;border-radius:50%;background:var(--accent);color:var(--on-accent);display:inline-flex;align-items:center;justify-content:center;font-size:.6rem}
.kv{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:13px 0;border-top:1px solid var(--border-soft);font-size:.93rem}
.kv:first-of-type{border-top:0}
.kv .k{color:var(--muted)}
.kv .v{font-weight:600;text-align:right}
.kv .v.mono{font-weight:500;font-size:.86rem}
.tag-ok{display:inline-flex;align-items:center;gap:6px;color:var(--success);font-size:.8rem;font-weight:600}
.tag-ok .dot{width:7px;height:7px;border-radius:50%;background:var(--success);box-shadow:0 0 8px var(--success)}
.admin-note{font-size:.82rem;color:var(--faint);margin-top:16px}

/* ---------- Footer ---------- */
footer{border-top:1px solid var(--border-soft);background:var(--bg-deep);padding:64px 0 0;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr 1fr;gap:36px;padding-bottom:48px}
.footer-grid .about{color:var(--muted);font-size:.9rem;max-width:280px;margin-top:14px}
.footer-grid h4{font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;color:var(--faint);margin-bottom:16px}
.footer-grid a{display:block;color:var(--muted);font-size:.9rem;padding:4px 0}
.footer-grid a:hover{color:var(--accent);opacity:1}
.footer-bottom{border-top:1px solid var(--border-soft);padding:20px 0;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;font-size:.84rem;color:var(--faint)}
.status-pill{display:inline-flex;align-items:center;gap:7px;font-size:.8rem;color:var(--muted)}
.status-pill .dot{width:7px;height:7px;border-radius:50%;background:var(--success);box-shadow:0 0 8px var(--success)}

/* ---------- Reveal & motion ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .65s var(--ease) calc(var(--d,0)*70ms),transform .65s var(--ease) calc(var(--d,0)*70ms)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* ---------- Responsive ---------- */
@media (max-width:960px){
  .grid-3,.dl-grid,.plans,.requirements,.steps{grid-template-columns:repeat(2,1fr)}
  .docs{grid-template-columns:1fr}
  .docs-side{position:static;display:flex;flex-wrap:wrap;gap:4px;margin-bottom:24px}
  .docs-side .group{width:100%;margin:12px 0 4px}
  .contact-wrap{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .nav-links{position:fixed;inset:var(--nav-h) 0 auto 0;background:color-mix(in srgb,var(--well) 96%,transparent);flex-direction:column;padding:18px 24px;gap:4px;border-bottom:1px solid var(--border);transform:translateY(-130%);transition:.3s var(--ease);margin-left:0}
  .nav-links.open{transform:none}
  .nav-links a{padding:12px 14px;font-size:1rem}
  .nav-toggle{display:block;margin-left:auto}
  .nav-cta{margin-left:0}
}
@media (max-width:620px){
  .grid-3,.grid-2,.dl-grid,.plans,.requirements,.steps{grid-template-columns:1fr}
  .hero{padding:64px 0 48px}
  .hero-stats{gap:28px}
  .section{padding:60px 0}
  .nav-cta .btn-ghost{display:none}
  .footer-grid{grid-template-columns:1fr}
  .detect-banner{padding:22px}
}