:root {
  --bg: #0e0f12;
  --card: #16181d;
  --text: #e6e7ea;
  --muted: #a2a8b3;
  --border: #272b33;
  --accent: #38d99f;
  --accent-quiet: rgba(56, 217, 159, 0.15);
  --danger: #ef5350;
  --success: #42be65;
  --warning: #ffb020;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, 'Helvetica Neue', Arial, 'Noto Sans', sans-serif; }
img { max-width: 100%; display: block; }

.app-header { border-bottom: 1px solid var(--border); padding: 16px; position: sticky; top: 0; backdrop-filter: blur(6px); background: linear-gradient(180deg, rgba(14,15,18,0.85), rgba(14,15,18,0.7)); z-index: 10; }
.brand { display: flex; align-items: center; gap: 12px; }
.logo { width: 28px; height: 28px; }
.app-title { margin: 0; font-size: 18px; letter-spacing: 0.3px; }
.app-subtitle { margin: 2px 0 0; color: var(--muted); font-size: 12px; }

.container { max-width: 980px; margin: 28px auto; padding: 0 16px; }

.card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 18px; margin-bottom: 18px; box-shadow: 0 10px 30px rgba(0,0,0,0.2); }
.section-title { margin: 0 0 12px; font-size: 16px; }

.stack { display: grid; gap: 14px; }
.grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

.field { display: grid; gap: 8px; position: relative; }
.field.checkbox { grid-template-columns: auto 1fr; align-items: center; }
label { font-weight: 600; font-size: 13px; color: var(--text); }
small.muted { color: var(--muted); }

input[type="text"], input[type="password"], input[type="number"], select, textarea {
  width: 100%; padding: 10px 12px; border-radius: 10px; background: #101216; border: 1px solid var(--border); color: var(--text);
}
textarea { resize: vertical; min-height: 160px; }

.actions { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.btn { appearance: none; border: 1px solid var(--accent); color: #0a0e0d; background: var(--accent); padding: 10px 14px; border-radius: 10px; font-weight: 700; cursor: pointer; }
.btn:hover { filter: brightness(0.98); }
.btn.ghost { background: transparent; color: var(--accent); border-color: var(--border); box-shadow: inset 0 0 0 1px var(--accent-quiet); }
.btn.ghost:hover { background: var(--accent-quiet); }

.alert { padding: 10px 12px; border-radius: 10px; margin: 10px 0; border: 1px solid var(--border); }
.alert.error { border-color: rgba(239,83,80,0.3); background: rgba(239,83,80,0.08); color: #ffb3b1; }
.alert.success { border-color: rgba(66,190,101,0.3); background: rgba(66,190,101,0.08); color: #c3ffd6; }

.kv { display: grid; gap: 8px; grid-template-columns: 1fr; }
.kv .k { color: var(--muted); font-size: 12px; }
.kv .v { font-weight: 600; }

.code-block { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; background: #0e1116; border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; white-space: pre-wrap; word-wrap: break-word; }
.copy { position: absolute; right: 8px; top: 8px; background: #20242c; border: 1px solid var(--border); color: var(--text); padding: 6px 8px; border-radius: 8px; cursor: pointer; font-size: 12px; }
.copy.copied { background: var(--accent-quiet); color: var(--accent); border-color: var(--accent); }

.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; border: 1px solid var(--border); font-size: 11px; }
.badge.low { color: #8bc34a; background: rgba(139,195,74,0.1); }
.badge.medium { color: #ffb020; background: rgba(255,176,32,0.1); }
.badge.high { color: #ef5350; background: rgba(239,83,80,0.1); }
.urgency.low { color: #8bc34a; }
.urgency.medium { color: #ffb020; }
.urgency.high { color: #ef5350; }

.history { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.history-item { border: 1px solid var(--border); border-radius: 10px; padding: 12px; background: #12141a; }
.history-item .title { font-weight: 700; margin-bottom: 6px; }
.history-item .meta { display: flex; gap: 8px; align-items: center; color: var(--muted); font-size: 12px; }
.history-item .preview { color: var(--muted); margin-top: 6px; }

.collapse summary { cursor: pointer; list-style: none; }
.collapse summary::-webkit-details-marker { display: none; }
.collapse summary { padding: 6px 0; color: var(--muted); }

.footer { text-align: center; color: var(--muted); padding: 24px; }

@media (hover: hover) {
  .btn:hover { transform: translateY(-1px); transition: transform .12s ease; }
}