:root {
  --bg: #0d1116;
  --card: #161b22;
  --card2: #1c232c;
  --border: #2a3340;
  --text: #e6edf3;
  --muted: #8b96a2;
  --accent: #21b573;
  --accent-2: #1a8f5b;
  --warn: #d4a017;
  --danger: #e25757;
  --shadow: 0 18px 40px rgba(0,0,0,.45);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; line-height: 1.55; }
.wrap { max-width: 720px; margin: 0 auto; padding: 32px 20px 80px; }
header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 32px; gap: 12px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 14px; }
.logo { width: 52px; height: 52px; border-radius: 12px; background: linear-gradient(135deg, #21b573, #2dcf85); display: flex; align-items: center; justify-content: center; font-size: 28px; box-shadow: 0 6px 18px rgba(33,181,115,.35); }
header h1 { margin: 0; font-size: 22px; font-weight: 700; letter-spacing: -.01em; }
header .sub { margin: 2px 0 0; font-size: 13px; color: var(--muted); }

.card { background: var(--card); border: 1px solid var(--border); border-radius: 18px; padding: 28px; box-shadow: var(--shadow); }
.card h2 { margin: 0 0 8px; font-size: 22px; }
.intro { color: var(--muted); margin: 0 0 22px; font-size: 14.5px; }

form label { display: block; margin: 0 0 14px; font-size: 13px; color: var(--muted); }
form input { width: 100%; padding: 12px 14px; margin-top: 6px; background: var(--card2); border: 1px solid var(--border); color: var(--text); border-radius: 10px; font-size: 15px; transition: border-color .15s; }
form input:focus { outline: none; border-color: var(--accent); }

button { border: 0; padding: 12px 22px; border-radius: 10px; font-size: 15px; font-weight: 600; cursor: pointer; transition: transform .08s, background .15s, opacity .15s; }
button:active { transform: translateY(1px); }
button.primary { background: var(--accent); color: #fff; }
button.primary:hover { background: var(--accent-2); }
button.ghost { background: transparent; border: 1px solid var(--border); color: var(--text); }
button.ghost:hover { border-color: var(--accent); color: var(--accent); }
.primary:disabled, .ghost:disabled { opacity: .55; cursor: not-allowed; }

.err { color: var(--danger); font-size: 13px; min-height: 18px; margin: 8px 0 0; }

.badge { display: inline-block; padding: 5px 12px; border-radius: 999px; font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .05em; margin-bottom: 14px; }
.badge.locked { background: rgba(212,160,23,.15); color: var(--warn); border: 1px solid rgba(212,160,23,.35); }
.badge.pending { background: rgba(33,150,243,.15); color: #60b6ff; border: 1px solid rgba(33,150,243,.35); }
.badge.unlocked { background: rgba(33,181,115,.15); color: var(--accent); border: 1px solid rgba(33,181,115,.35); }

.amount-block { background: var(--card2); border: 1px solid var(--border); border-radius: 12px; padding: 18px 20px; margin: 18px 0 24px; }
.amount-row { display: flex; justify-content: space-between; padding: 8px 0; font-size: 14px; color: var(--muted); }
.amount-row strong { color: var(--text); font-weight: 600; }
.amount-row.big { border-top: 1px solid var(--border); margin-top: 4px; padding-top: 14px; font-size: 16px; }
.amount-row.big strong { color: var(--accent); font-size: 18px; }

.action-box { background: var(--card2); border: 1px solid var(--border); border-radius: 12px; padding: 24px; text-align: center; margin: 20px 0; }
.action-box .lock-icon { font-size: 42px; margin-bottom: 10px; }
.action-box h3 { margin: 0 0 8px; font-size: 18px; }
.action-box p { color: var(--muted); margin: 0 0 18px; font-size: 14px; }
.action-box .hint { color: var(--muted); font-size: 12.5px; margin-top: 14px; }

.audit { margin-top: 24px; }
.audit summary { color: var(--muted); cursor: pointer; font-size: 13px; padding: 8px 0; }
.audit summary:hover { color: var(--text); }
.audit-entry { padding: 8px 0; border-top: 1px solid var(--border); font-size: 13px; color: var(--muted); }
.audit-entry .action { color: var(--text); font-weight: 500; }
.audit-entry .ts { display: block; font-size: 11px; color: var(--muted); margin-top: 2px; }

footer { margin-top: 32px; padding-top: 18px; text-align: center; color: var(--muted); font-size: 12px; }
footer a { color: var(--accent); text-decoration: none; }
footer a:hover { text-decoration: underline; }

@media (max-width: 480px) {
  .wrap { padding: 20px 14px 60px; }
  .card { padding: 22px 18px; }
  header h1 { font-size: 19px; }
}