:root {
  color-scheme: light dark;
  --bg: #f6f8fa;
  --fg: #1f2328;
  --muted: #656d76;
  --border: #d0d7de;
  --card: #ffffff;
  /* 独立青绿，不用 Linear 品牌靛紫 #5e6ad2 */
  --accent: #0f766e;
  --accent-hover: #0d9488;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  font-size: 14px;
  line-height: 1.55;
}

.wrap {
  max-width: 680px;
  margin: 0 auto;
  padding: 32px 20px 48px;
}

.head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.logo {
  font-weight: 700;
  color: var(--accent);
  font-size: 20px;
}

.head-label {
  color: var(--muted);
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 18px 20px;
  margin-bottom: 16px;
}

.label {
  display: block;
  font-weight: 600;
  margin-bottom: 4px;
}

.section-title {
  margin: 0 0 6px;
  font-size: 16px;
}

.access-summary {
  margin: 0 0 14px;
  color: var(--muted);
}

.plan-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.plan {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
}

.plan span {
  color: var(--muted);
  font-size: 13px;
}

.license-form {
  padding-top: 18px;
  margin-top: 18px;
  border-top: 1px solid var(--border);
}

.hint {
  color: var(--muted);
  font-size: 13px;
  margin: 4px 0 12px;
}

.input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  background: var(--bg);
  color: var(--fg);
}

.input:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.actions {
  display: flex;
  gap: 10px;
  margin-top: 12px;
}

.btn {
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--fg);
  border-radius: 8px;
  padding: 8px 16px;
  cursor: pointer;
  font-size: 13px;
}

.btn:hover {
  background: var(--bg);
}

.btn:disabled,
.input:disabled,
.toggle input:disabled {
  cursor: wait;
  opacity: 0.65;
}

.btn-primary {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.status {
  margin-top: 14px;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 13px;
}

.status-ok {
  background: #dafbe1;
  color: #1a7f37;
  border: 1px solid #a6e6b5;
}

.status-error {
  background: #ffebe9;
  color: #b42318;
  border: 1px solid #f3b7b1;
}

.status-info {
  background: #ddf4ff;
  color: #0969da;
  border: 1px solid #b6e3ff;
}

.toggle {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
}

.toggle input {
  margin-top: 3px;
}

details summary {
  cursor: pointer;
  font-weight: 600;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  background: rgba(110, 118, 129, 0.15);
  padding: 1px 5px;
  border-radius: 4px;
  font-size: 12px;
}

.privacy {
  color: var(--muted);
  font-size: 12px;
  margin-top: 8px;
}

.privacy p {
  margin: 4px 0;
}

a {
  color: var(--accent);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1117;
    --fg: #e6edf3;
    --muted: #8b949e;
    --border: #30363d;
    --card: #161b22;
  }
  .status-ok {
    background: #12261e;
    color: #3fb950;
    border-color: #238636;
  }
  .status-error {
    background: #2d1516;
    color: #ff7b72;
    border-color: #b42318;
  }
  .status-info {
    background: #0c2d4a;
    color: #58a6ff;
    border-color: #1f6feb;
  }
}

@media (max-width: 520px) {
  .plan-grid {
    grid-template-columns: 1fr;
  }

  .actions {
    align-items: stretch;
    flex-direction: column;
  }
}