/* Fork Theme Contract */
:root {
  color-scheme: light dark;
  --accent: #007AFF;
  --accent-fg: #ffffff;
  --bg: #f3f4f6;
  --fg: #0f172a;
  --secondary-bg: #ffffff;
  --secondary-fg: #64748b;
  --border: rgba(15, 23, 42, 0.10);
  --danger: #dc2626;
  --success: #16a34a;
  --shadow: 0 6px 24px rgba(15, 23, 42, 0.08);
  --radius: 14px;
  --radius-lg: 20px;
  --radius-sm: 8px;
  --radius-full: 9999px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, monospace;
  --font-size: 16px;
  --font-size-sm: 14px;
  --font-size-xs: 12px;
  --font-size-lg: 18px;
  --font-size-xl: 22px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-fork-theme]) {
    --accent: #0A84FF;
    --accent-fg: #ffffff;
    --bg: #000000;
    --fg: #f5f5f7;
    --secondary-bg: #1c1c1e;
    --secondary-fg: #98989f;
    --border: rgba(120, 120, 128, 0.28);
    --danger: #ff453a;
    --success: #32d74b;
    --shadow: 0 6px 24px rgba(0, 0, 0, 0.4);
  }
}

:root[data-fork-theme="light"] { color-scheme: light; }
:root[data-fork-theme="dark"] {
  color-scheme: dark;
  --accent: #0A84FF;
  --accent-fg: #ffffff;
  --bg: #000000;
  --fg: #f5f5f7;
  --secondary-bg: #1c1c1e;
  --secondary-fg: #98989f;
  --border: rgba(120, 120, 128, 0.28);
  --danger: #ff453a;
  --success: #32d74b;
  --shadow: 0 6px 24px rgba(0, 0, 0, 0.4);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  font-size: var(--font-size);
  background: var(--bg);
  color: var(--fg);
  -webkit-font-smoothing: antialiased;
  min-height: 100dvh;
}

button { font-family: inherit; }

/* ---------- Main shell ---------- */
.app-shell {
  width: min(100%, 960px);
  max-width: 960px;
  margin: 0 auto;
  padding-inline: clamp(16px, 4vw, 32px);
  padding-top: calc(var(--fork-safe-top, 60px) + 16px);
  padding-bottom: max(32px, env(safe-area-inset-bottom));
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.hero {
  text-align: center;
  padding: 24px 8px 8px;
}
.hero-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  background: var(--accent);
  color: var(--accent-fg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  box-shadow: var(--shadow);
}
.hero-icon i { width: 28px; height: 28px; }
.hero h1 {
  font-size: clamp(24px, 5vw, 30px);
  margin: 0 0 6px;
  letter-spacing: -0.02em;
}
.hero .muted {
  margin: 0 auto;
  max-width: 520px;
  line-height: 1.5;
}

.muted { color: var(--secondary-fg); }
.small { font-size: var(--font-size-sm); }

/* ---------- Card ---------- */
.card {
  background: var(--secondary-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.card h2 {
  margin: 0;
  font-size: var(--font-size-lg);
  letter-spacing: -0.01em;
}
.card p { margin: 0; }

.row-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

/* ---------- Buttons ---------- */
.btn-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 10px;
}

.btn {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--fg);
  border-radius: var(--radius);
  padding: 14px 14px;
  min-height: 64px;
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 4px;
  text-align: left;
  transition: transform 0.08s ease, border-color 0.15s ease, background 0.15s ease;
}
.btn:hover { border-color: var(--accent); }
.btn:active { transform: scale(0.97); }
.btn .btn-icon {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: var(--secondary-bg);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 4px;
}
.btn .btn-icon i { width: 16px; height: 16px; }
.btn .btn-title { font-size: var(--font-size-sm); }
.btn .btn-sub {
  font-size: var(--font-size-xs);
  font-weight: 500;
  color: var(--secondary-fg);
}

.btn.primary {
  background: var(--accent);
  color: var(--accent-fg);
  border-color: transparent;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
}
.btn.primary i { width: 18px; height: 18px; }

.btn.ghost {
  background: transparent;
  border: 1px solid var(--border);
}
.btn.ghost.small {
  min-height: 36px;
  padding: 6px 12px;
  flex-direction: row;
  align-items: center;
  gap: 6px;
  font-size: var(--font-size-sm);
}
.btn.ghost.small i { width: 14px; height: 14px; }

.btn.danger {
  background: var(--danger);
  color: #fff;
  border-color: transparent;
}

/* ---------- Form ---------- */
.form-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: var(--font-size-sm);
  color: var(--secondary-fg);
  font-weight: 500;
}
.field input,
.field textarea,
.field select {
  width: 100%;
  font: inherit;
  font-size: 16px;
  color: var(--fg);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  outline: none;
}
.field input:focus,
.field textarea:focus,
.field select:focus { border-color: var(--accent); }
.field textarea { resize: vertical; min-height: 80px; }

/* ---------- Log ---------- */
.log {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 320px;
  overflow: auto;
}
.log-item {
  padding: 10px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: var(--font-size-sm);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.log-item .log-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.log-item .log-tag {
  font-size: var(--font-size-xs);
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: var(--secondary-bg);
  color: var(--secondary-fg);
}
.log-item .log-tag.ok { background: color-mix(in srgb, var(--success) 18%, transparent); color: var(--success); }
.log-item .log-tag.cancel { background: color-mix(in srgb, var(--danger) 18%, transparent); color: var(--danger); }
.log-item .log-time {
  font-size: var(--font-size-xs);
  color: var(--secondary-fg);
}
.log-item pre {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  background: var(--secondary-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px;
  overflow: auto;
  max-height: 140px;
  color: var(--fg);
  white-space: pre-wrap;
  word-break: break-word;
}
.log-empty {
  padding: 14px;
  text-align: center;
  font-size: var(--font-size-sm);
}

/* ---------- Modal route shell ---------- */
.modal-shell {
  display: flex;
  flex-direction: column;
  height: 100dvh;
  width: 100%;
  background: var(--bg);
  color: var(--fg);
}
.modal-header {
  position: sticky;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  background: var(--secondary-bg);
  border-bottom: 1px solid var(--border);
  z-index: 2;
}
.modal-header h1 {
  font-size: var(--font-size-lg);
  margin: 0;
  letter-spacing: -0.01em;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.icon-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  border: none;
  background: var(--bg);
  color: var(--fg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.icon-btn i { width: 18px; height: 18px; }
.icon-btn:hover { background: var(--border); }

.modal-body {
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.modal-footer {
  position: sticky;
  bottom: 0;
  display: flex;
  gap: 10px;
  padding: 14px 18px;
  background: var(--secondary-bg);
  border-top: 1px solid var(--border);
}
.modal-footer .btn { flex: 1; }

/* Modal content variants */
.kv {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 6px 12px;
  font-size: var(--font-size-sm);
  background: var(--secondary-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
}
.kv dt { color: var(--secondary-fg); font-weight: 500; }
.kv dd { margin: 0; font-family: var(--font-mono); font-size: var(--font-size-xs); word-break: break-word; }

.long-text p { margin: 0 0 10px; line-height: 1.55; }

.modal-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.modal-list li {
  background: var(--secondary-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-size: var(--font-size-sm);
}
.modal-list li:hover { border-color: var(--accent); }
.modal-list li i { width: 16px; height: 16px; color: var(--secondary-fg); }

.modal-image {
  width: 100%;
  border-radius: var(--radius);
  background: var(--secondary-bg);
  border: 1px solid var(--border);
  aspect-ratio: 16/10;
  object-fit: cover;
  display: block;
}

.detent-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border-radius: var(--radius-full);
  padding: 4px 10px;
  align-self: flex-start;
}