:root {
  --bg: #f4f5f7;
  --surface: #ffffff;
  --surface-alt: #f0f1f4;
  --border: #e2e4e9;
  --text: #1a1d29;
  --text-muted: #6b7280;
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --danger: #ef4444;
  --danger-hover: #dc2626;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(20, 20, 43, 0.06), 0 1px 2px rgba(20, 20, 43, 0.04);
  --shadow-lg: 0 10px 30px rgba(20, 20, 43, 0.15);
}

[data-theme="dark"] {
  --bg: #14151f;
  --surface: #1c1e2b;
  --surface-alt: #23253355;
  --border: #2c2f42;
  --text: #eef0f8;
  --text-muted: #9498ac;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.5);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #14151f;
    --surface: #1c1e2b;
    --surface-alt: #23253355;
    --border: #2c2f42;
    --text: #eef0f8;
    --text-muted: #9498ac;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.5);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  transition: background 0.2s, color 0.2s;
}

.container { max-width: 1200px; margin: 0 auto; padding: 24px 20px 60px; }

/* Topbar */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px; background: var(--surface); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 20;
}
.topbar-left { display: flex; align-items: center; gap: 10px; }
.topbar-left h1 { font-size: 18px; margin: 0; font-weight: 700; }
.logo { font-size: 22px; }
.topbar-right { display: flex; gap: 8px; }
.icon-btn {
  background: var(--surface-alt); border: 1px solid var(--border); border-radius: 8px;
  width: 36px; height: 36px; cursor: pointer; font-size: 15px; color: var(--text);
}
.icon-btn:hover { background: var(--border); }
.user-email { font-size: 12.5px; color: var(--text-muted); margin-right: 4px; }

/* Stats */
.stats-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; margin: 20px 0; }
.stat-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px 16px; box-shadow: var(--shadow);
}
.stat-card .num { font-size: 24px; font-weight: 800; }
.stat-card .label { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

/* Toolbar */
.toolbar {
  display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 18px;
}
.toolbar-search { flex: 1 1 240px; }
.toolbar-search input {
  width: 100%; padding: 10px 14px; border-radius: 10px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text); font-size: 14px;
}
.toolbar-filters { display: flex; gap: 8px; }
select {
  padding: 9px 10px; border-radius: 10px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text); font-size: 13px;
}
.view-toggle { display: flex; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.view-toggle button {
  border: none; background: var(--surface); color: var(--text-muted); width: 36px; height: 36px; cursor: pointer;
}
.view-toggle button.active { background: var(--primary); color: #fff; }

.primary-btn {
  background: var(--primary); color: #fff; border: none; border-radius: 10px;
  padding: 10px 16px; font-size: 14px; font-weight: 600; cursor: pointer;
}
.primary-btn:hover { background: var(--primary-hover); }
.ghost-btn {
  background: transparent; border: 1px solid var(--border); color: var(--text);
  border-radius: 10px; padding: 10px 16px; font-size: 14px; cursor: pointer;
}
.danger-btn {
  background: transparent; border: 1px solid var(--danger); color: var(--danger);
  border-radius: 10px; padding: 10px 16px; font-size: 13px; cursor: pointer;
}
.danger-btn:hover { background: var(--danger); color: #fff; }

/* App grid */
.app-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.app-grid.list-view { grid-template-columns: 1fr; }

.app-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px; box-shadow: var(--shadow); display: flex; flex-direction: column; gap: 10px;
  transition: transform 0.15s, box-shadow 0.15s;
}
.app-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.list-view .app-card { flex-direction: row; align-items: center; flex-wrap: wrap; }

.app-card-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; }
.app-name { font-size: 15px; font-weight: 700; margin: 0; word-break: break-word; }
.app-slug {
  font-size: 11px; color: var(--text-muted); font-family: monospace;
  text-decoration: none; word-break: break-all;
}
.app-slug:hover { color: var(--primary); text-decoration: underline; }

.status-badge {
  font-size: 11px; font-weight: 700; padding: 3px 9px; border-radius: 999px; color: #fff; white-space: nowrap;
}

.app-meta { display: flex; flex-wrap: wrap; gap: 6px 12px; font-size: 12px; color: var(--text-muted); }
.app-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag-chip {
  background: var(--surface-alt); border: 1px solid var(--border); border-radius: 999px;
  font-size: 11px; padding: 2px 9px; color: var(--text-muted);
}
.app-notes { font-size: 12.5px; color: var(--text-muted); max-height: 40px; overflow: hidden; }

.no-index-warning { font-size: 11.5px; color: var(--danger); }

.app-actions { display: flex; gap: 8px; margin-top: auto; }
.list-view .app-actions { margin-top: 0; margin-left: auto; }
.app-actions button, .app-actions a {
  flex: 1; text-align: center; padding: 8px 10px; font-size: 12.5px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--surface-alt); color: var(--text);
  cursor: pointer; text-decoration: none;
}
.app-actions .open-link { background: var(--primary); color: #fff; border-color: var(--primary); }
.app-actions .open-link.disabled { opacity: 0.5; pointer-events: none; }

.empty-state {
  text-align: center; color: var(--text-muted); padding: 60px 20px; font-size: 14px;
}
.empty-state code { background: var(--surface-alt); padding: 2px 6px; border-radius: 6px; }

/* Modals */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(10, 10, 20, 0.5); display: flex;
  align-items: center; justify-content: center; z-index: 100; padding: 16px;
}
.modal-overlay[hidden] { display: none !important; }
.modal {
  background: var(--surface); border-radius: var(--radius); padding: 24px; width: 100%;
  max-width: 440px; box-shadow: var(--shadow-lg); max-height: 90vh; overflow-y: auto;
}
.modal h2 { margin: 0 0 16px; font-size: 18px; }
.modal form { display: flex; flex-direction: column; gap: 4px; }
.modal label { font-size: 12.5px; font-weight: 600; margin-top: 10px; color: var(--text-muted); }
.modal input, .modal select, .modal textarea {
  padding: 10px 12px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--bg); color: var(--text); font-size: 14px; font-family: inherit;
}
.modal .hint { font-size: 11.5px; color: var(--text-muted); margin: 8px 0 0; }
.modal-actions { display: flex; gap: 8px; margin-top: 20px; align-items: center; }

.upload-progress { height: 8px; background: var(--surface-alt); border-radius: 999px; margin-top: 14px; overflow: hidden; }
.upload-progress-bar { height: 100%; width: 0%; background: var(--primary); transition: width 0.2s; }

/* Toast */
.toast {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%);
  background: var(--text); color: var(--bg); padding: 10px 18px; border-radius: 10px;
  font-size: 13.5px; z-index: 200; box-shadow: var(--shadow-lg);
}
.toast.error { background: var(--danger); color: #fff; }

/* Login */
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: var(--bg); }
.login-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 32px; width: 100%; max-width: 340px; box-shadow: var(--shadow-lg); text-align: center;
}
.login-card h1 { margin: 0 0 6px; font-size: 20px; }
.login-card .muted { color: var(--text-muted); font-size: 13px; margin-bottom: 18px; }
.login-card input {
  width: 100%; padding: 10px 12px; border-radius: 8px; border: 1px solid var(--border);
  margin-bottom: 12px; background: var(--bg); color: var(--text); font-size: 14px;
}
.login-card button {
  width: 100%; padding: 10px; border: none; border-radius: 8px; background: var(--primary);
  color: #fff; font-weight: 600; cursor: pointer;
}
.alert { padding: 8px 12px; border-radius: 8px; font-size: 13px; margin-bottom: 12px; text-align: left; }
.alert.error { background: #fee2e2; color: #991b1b; }
.alert.success { background: #dcfce7; color: #166534; }

@media (max-width: 640px) {
  .toolbar { flex-direction: column; align-items: stretch; }
  .toolbar-filters { flex-wrap: wrap; }
}