:root{--brand:#111827;--ink:#111;--muted:#6b7280;--card:#fff;--bg:#f8fafc;--ring:#e5e7eb;--radius:14px;--shadow:0 8px 24px rgba(0,0,0,.08)}
*{box-sizing:border-box}
html,body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--ink)}
.container{max-width:1000px;margin:0 auto;padding:24px}
.card{background:var(--card);border:1px solid var(--ring);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}
.btn{display:inline-block;padding:10px 16px;border-radius:10px;border:1px solid var(--ring);background:#111827;color:#fff;text-decoration:none}
.btn.secondary{background:#fff;color:#111;border-color:var(--ring)}
.input{width:100%;padding:12px 14px;border:1px solid var(--ring);border-radius:10px}
.grid{display:grid;gap:16px}
.grid.two{grid-template-columns:1fr 1fr}
@media (max-width:720px){.grid.two{grid-template-columns:1fr}}
.table{width:100%;border-collapse:collapse}
.table th,.table td{padding:10px;border-bottom:1px solid var(--ring);text-align:left;font-size:14px;vertical-align:top}
.badge{padding:4px 8px;border-radius:999px;background:#eef2ff;color:#3730a3;font-size:12px;display:inline-block}
.nav{display:flex;gap:12px;margin-bottom:16px}
.nav a{color:#111827;text-decoration:none;padding:8px 12px;border-radius:8px;border:1px solid var(--ring);background:#fff}
.alert{padding:12px 14px;border-radius:10px;background:#ecfccb;color:#365314;border:1px solid #d9f99d}
footer{margin-top:24px;color:var(--muted);font-size:13px}
.small{font-size:12px;color:var(--muted)}
code{background:#f1f5f9;padding:2px 6px;border-radius:6px}
.form-note{color:var(--muted);font-size:12px;margin-top:6px}
pre{white-space:pre-wrap;word-wrap:break-word}