:root{--bg:#fff;--text:#0f172a;--muted:#64748b;--card:#ffffff;--border:#e5e7eb;--primary:#0b0b0b;}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial}
.container{max-width:1000px;margin:0 auto;padding:0 16px}
.hero{position:relative;min-height:340px;color:#fff}
.hero__bg{position:absolute;inset:0;background:url('https://images.unsplash.com/photo-1542314831-068cd1dbfeeb?q=80&w=2000&auto=format&fit=crop') center/cover no-repeat}
.hero:before{content:'';position:absolute;inset:0;background:linear-gradient(to bottom, rgba(0,0,0,.45), rgba(0,0,0,.15))}
.hero__content{position:relative;z-index:1;padding:56px 0}
.hero__row{display:flex;align-items:center;gap:12px}
.hero h1{margin:0;font-size:36px;font-weight:700;letter-spacing:-.02em}
.hero__cta{margin-top:16px;display:flex;gap:10px;flex-wrap:wrap}
.pill{margin-top:12px;display:inline-flex;gap:8px;align-items:center;background:#ffffffd9;color:#0f172a;border-radius:999px;padding:6px 12px}
.btn--sm{height:32px}
.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:20px;margin:18px 0}
.card h2{margin:0 0 10px 0;font-size:20px}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.grid{display:grid;grid-template-columns:1fr;gap:16px}
@media(min-width:820px){.grid{grid-template-columns:1fr 1fr}}
.mt{margin-top:10px}
.title{font-weight:600;margin-bottom:6px}
.muted{color:var(--muted);font-size:12px}
.hint{color:var(--muted);font-size:12px;margin-top:4px}
.space{margin:10px 0}
.full{width:100%}
.input{height:40px;border:1px solid var(--border);border-radius:10px;padding:0 10px;width:100%}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.btn{display:inline-flex;align-items:center;gap:8px;height:40px;border:1px solid var(--border);border-radius:10px;padding:0 14px;background:#fff;cursor:pointer;text-decoration:none}
.btn--primary{background:var(--primary);color:#fff;border-color:var(--primary)}
.btn--secondary{background:#ffffff;color:#0f172a;border-color:#d1d5db}
.btn--ghost{background:transparent}
.footer{display:grid;grid-template-columns:1fr;gap:16px}
@media(min-width:820px){.footer{grid-template-columns:1fr 1fr}}
.flash{border-radius:10px;padding:10px 12px;margin:12px 0;border:1px solid}
.flash--success{background:#ecfdf5;color:#065f46;border-color:#a7f3d0}
.flash--error{background:#fef2f2;color:#991b1b;border-color:#fecaca}
.flash--info{background:#eff6ff;color:#1e40af;border-color:#bfdbfe}