:root {
  --bg0: #071a1a;
  --bg1: #0f3d3a;
  --teal: #14b8a6;
  --teal-dim: #0f766e;
  --ink: #ecfdf8;
  --muted: #99b8b3;
  --card: rgba(15, 40, 38, 0.78);
  --line: rgba(20, 184, 166, 0.28);
  --danger: #fb7185;
  --font-display: "Segoe UI", "Noto Sans TC", system-ui, sans-serif;
  --font-body: "Segoe UI", "Noto Sans TC", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg0);
}

.bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(900px 500px at 10% -10%, rgba(20, 184, 166, 0.35), transparent 60%),
    radial-gradient(700px 400px at 90% 10%, rgba(45, 212, 191, 0.18), transparent 55%),
    linear-gradient(160deg, var(--bg0), var(--bg1) 55%, #062222);
}

.shell {
  width: min(640px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2.5rem 0 4rem;
}

.hero { margin-bottom: 1.5rem; }
.brand {
  margin: 0;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--teal);
  font-weight: 700;
}
.hero h1 {
  margin: 0.4rem 0 0.5rem;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.1rem);
  line-height: 1.25;
}
.sub { margin: 0; color: var(--muted); line-height: 1.5; }

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1.25rem;
  backdrop-filter: blur(10px);
  margin-bottom: 1rem;
}
.hidden { display: none !important; }

.row { display: flex; gap: 0.75rem; align-items: center; }
.between { justify-content: space-between; }
.label { color: var(--muted); font-size: 0.8rem; margin: 0; }
.value { margin: 0.15rem 0 0; font-weight: 600; }

.status-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin: 1rem 0;
}
.stat {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.75rem;
}
.stat strong { display: block; margin-top: 0.25rem; font-size: 1.05rem; }

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.btn {
  appearance: none;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink);
  border-radius: 999px;
  padding: 0.55rem 1rem;
  font: inherit;
  cursor: pointer;
}
.btn:hover { border-color: var(--teal); }
.btn.primary {
  background: linear-gradient(135deg, var(--teal), var(--teal-dim));
  border-color: transparent;
  color: #042f2e;
  font-weight: 700;
}
.btn.ghost { background: transparent; }

.hint { color: var(--muted); font-size: 0.85rem; line-height: 1.45; }
.deep-link {
  display: inline-block;
  margin-top: 0.35rem;
  color: var(--teal);
  word-break: break-all;
}

hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 1.25rem 0;
}

h2 { margin: 0 0 0.75rem; font-size: 1.1rem; }

.form {
  display: grid;
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.form label { display: grid; gap: 0.35rem; font-size: 0.85rem; color: var(--muted); }
.form input, .form textarea {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.25);
  color: var(--ink);
  padding: 0.65rem 0.75rem;
  font: inherit;
}

.list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}
.list li {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.75rem;
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: flex-start;
}
.list .meta { color: var(--muted); font-size: 0.8rem; margin-top: 0.25rem; }
.list button {
  border: 0;
  background: transparent;
  color: var(--danger);
  cursor: pointer;
  font: inherit;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 1.25rem;
  transform: translateX(-50%);
  background: #134e4a;
  border: 1px solid var(--line);
  padding: 0.7rem 1rem;
  border-radius: 999px;
  max-width: min(90vw, 420px);
  text-align: center;
  z-index: 20;
}

.foot {
  margin-top: 1.5rem;
  color: var(--muted);
  font-size: 0.75rem;
  text-align: center;
}

@media (max-width: 480px) {
  .status-grid { grid-template-columns: 1fr; }
  .actions .btn { width: 100%; }
}