/* ============================================
   PlexyTrack — Minimalist UI
   ============================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Light theme (default) */
  --bg-body: #f5f6fa;
  --bg-surface: #ffffff;
  --bg-sidebar: #1a1d23;
  --bg-sidebar-hover: #272b33;
  --bg-sidebar-active: #3b82f6;
  --bg-header: #ffffff;
  --bg-input: #ffffff;
  --bg-card: #ffffff;
  --bg-badge: #f0f1f3;
  --bg-code: #f4f5f7;

  --border-color: #e2e4e9;
  --border-input: #d1d5db;
  --border-input-focus: #3b82f6;

  --text-primary: #111827;
  --text-secondary: #6b7280;
  --text-muted: #9ca3af;
  --text-sidebar: #a1a7b4;
  --text-sidebar-active: #ffffff;
  --text-on-primary: #ffffff;
  --text-link: #3b82f6;

  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --danger: #ef4444;
  --danger-hover: #dc2626;
  --warning: #f59e0b;
  --warning-hover: #d97706;
  --success: #10b981;
  --success-hover: #059669;

  --shadow-sm: 0 1px 2px rgba(0,0,0,.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,.08);
  --shadow-lg: 0 8px 24px rgba(0,0,0,.12);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;

  --sidebar-width: 240px;
  --header-height: 56px;

  --transition: .2s ease;
}

/* ---------- Dark Theme ---------- */
[data-theme="dark"] {
  --bg-body: #0f1117;
  --bg-surface: #1a1d23;
  --bg-sidebar: #111318;
  --bg-sidebar-hover: #1e2028;
  --bg-sidebar-active: #3b82f6;
  --bg-header: #1a1d23;
  --bg-input: #22252d;
  --bg-card: #1a1d23;
  --bg-badge: #22252d;
  --bg-code: #22252d;

  --border-color: #2a2d35;
  --border-input: #3a3d45;
  --border-input-focus: #3b82f6;

  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --text-sidebar: #7a8194;
  --text-sidebar-active: #ffffff;
  --text-link: #60a5fa;

  --shadow-sm: 0 1px 2px rgba(0,0,0,.2);
  --shadow-md: 0 4px 12px rgba(0,0,0,.3);
  --shadow-lg: 0 8px 24px rgba(0,0,0,.4);
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html { font-size: 15px; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-body);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--text-link); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; display: block; }

/* ---------- Layout ---------- */
.layout {
  display: flex;
  width: 100%;
  min-height: 100vh;
}

/* ---------- Sidebar ---------- */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--bg-sidebar);
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: transform var(--transition);
  border-right: 1px solid rgba(255,255,255,.06);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 20px 28px;
}

.sidebar-brand .logo {
  height: 32px;
  width: 32px;
  border-radius: var(--radius-sm);
}

.sidebar-brand span {
  font-weight: 700;
  font-size: 1.15rem;
  color: #fff;
  letter-spacing: -.02em;
}

.sidebar-nav {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 0 10px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-sidebar);
  font-weight: 500;
  font-size: .9rem;
  transition: background var(--transition), color var(--transition);
  text-decoration: none;
}

.nav-link:hover {
  background: var(--bg-sidebar-hover);
  color: #fff;
  text-decoration: none;
}

.nav-link.active {
  background: var(--bg-sidebar-active);
  color: var(--text-sidebar-active);
}

.nav-link svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid rgba(255,255,255,.06);
}

/* ---------- Main Area ---------- */
.main-wrapper {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  transition: margin-left var(--transition);
}

/* ---------- Top Header ---------- */
.top-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-height);
  background: var(--bg-header);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  backdrop-filter: blur(12px);
}

.top-header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.top-header-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Hamburger Button */
.hamburger-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

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

.hamburger-btn svg {
  width: 22px;
  height: 22px;
}

/* Theme Toggle */
.theme-toggle {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  cursor: pointer;
  padding: 7px;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.theme-toggle:hover {
  background: var(--bg-badge);
  color: var(--text-primary);
  border-color: var(--border-input);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
}

.theme-toggle .icon-moon { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-moon { display: block; }

/* Logout Button */
.btn-logout {
  display: flex;
  align-items: center;
  gap: 8px;
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  cursor: pointer;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  font-size: .85rem;
  font-weight: 500;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

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

.btn-logout svg {
  width: 16px;
  height: 16px;
}

/* ---------- Content Area ---------- */
.content-area {
  flex: 1;
  padding: 28px 28px 20px;
  max-width: 960px;
  width: 100%;
  margin: 0 auto;
}

/* ---------- Cards ---------- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
}

.card h2 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 0;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-color);
}

.card h2 svg {
  width: 20px;
  height: 20px;
  color: var(--accent);
  flex-shrink: 0;
}

/* ---------- Forms ---------- */
.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-weight: 500;
  font-size: .875rem;
  margin-bottom: 6px;
  color: var(--text-secondary);
}

.form-input,
.form-input-file {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border-input);
  border-radius: var(--radius-sm);
  font-size: .9rem;
  background: var(--bg-input);
  color: var(--text-primary);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-input:focus,
.form-input-file:focus {
  border-color: var(--border-input-focus);
  box-shadow: 0 0 0 3px rgba(59,130,246,.15);
  outline: none;
}

.form-input-file {
  padding: 8px 12px;
  cursor: pointer;
}

select.form-input,
select.direction-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 32px;
}

/* ---------- Checkboxes ---------- */
.checkbox-group {
  display: flex;
  align-items: center;
  margin-bottom: 10px;
  gap: 8px;
}

.checkbox-group input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  flex-shrink: 0;
  cursor: pointer;
}

.checkbox-group label {
  font-weight: 400;
  font-size: .9rem;
  color: var(--text-primary);
  margin-bottom: 0;
  cursor: pointer;
}

.checkbox-group input[type="checkbox"]:disabled + label {
  color: var(--text-muted);
  cursor: not-allowed;
}

.direction-select {
  margin-left: auto;
  padding: 5px 28px 5px 10px;
  font-size: .8rem;
  border: 1px solid var(--border-input);
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  color: var(--text-primary);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
}

/* Sync Options Fieldset */
.sync-options {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  margin-bottom: 10px;
}

.sync-options legend {
  font-size: .9rem;
  font-weight: 600;
  color: var(--text-primary);
  padding: 0 6px;
}

/* ---------- Provider toggle ---------- */
.provider-toggle {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 18px;
}

.provider-toggle label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
  font-size: .9rem;
  color: var(--text-primary);
  cursor: pointer;
}

.provider-toggle input[type="radio"] {
  accent-color: var(--accent);
}

/* ---------- Buttons ---------- */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 18px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: .875rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), transform .1s ease, box-shadow var(--transition);
  text-decoration: none;
  line-height: 1.4;
  white-space: nowrap;
}

.button:hover { text-decoration: none; }
.button:active { transform: translateY(1px); }

.button svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.button.primary {
  background: var(--accent);
  color: var(--text-on-primary);
}
.button.primary:hover { background: var(--accent-hover); }

.button.secondary {
  background: var(--danger);
  color: var(--text-on-primary);
}
.button.secondary:hover { background: var(--danger-hover); }

.button.tertiary {
  background: var(--warning);
  color: var(--text-on-primary);
}
.button.tertiary:hover { background: var(--warning-hover); }

.button.outline {
  background: transparent;
  border: 1px solid var(--border-input);
  color: var(--text-primary);
}
.button.outline:hover {
  background: var(--bg-badge);
  border-color: var(--border-color);
}

/* ---------- Form Actions ---------- */
.form-actions,
.stop-form,
.reset-form,
.restore-form,
.auth-form {
  margin-top: 20px;
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.restore-form,
.auth-form {
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
}

.backup-actions {
  margin-bottom: 20px;
  text-align: center;
}

/* ---------- Status Messages ---------- */
.status-message {
  padding: 12px 16px;
  margin-top: 16px;
  border-radius: var(--radius-sm);
  font-size: .875rem;
  text-align: center;
  font-weight: 500;
}

.status-message.success {
  background: #ecfdf5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.status-message.error {
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

.status-message.info {
  background: #eff6ff;
  color: #1e40af;
  border: 1px solid #bfdbfe;
}

[data-theme="dark"] .status-message.success {
  background: rgba(16,185,129,.1);
  color: #6ee7b7;
  border-color: rgba(16,185,129,.2);
}

[data-theme="dark"] .status-message.error {
  background: rgba(239,68,68,.1);
  color: #fca5a5;
  border-color: rgba(239,68,68,.2);
}

[data-theme="dark"] .status-message.info {
  background: rgba(59,130,246,.1);
  color: #93c5fd;
  border-color: rgba(59,130,246,.2);
}

/* ---------- Status Badges ---------- */
.status-badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 20px;
  font-size: .75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .03em;
}

.status-badge.owner { background: var(--danger); color: #fff; }
.status-badge.available { background: var(--success); color: #fff; }
.status-badge.unavailable { background: var(--text-muted); color: #fff; }

/* ---------- Selected User Section ---------- */
.selected-user-section {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.selected-user-info { padding: 0; }

.user-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px;
  background: var(--bg-surface);
  border: 1px solid var(--success);
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 14px;
}

.user-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
}

.user-details h3 {
  margin: 0 0 4px;
  color: var(--text-primary);
  font-size: 1rem;
}

.user-role {
  background: var(--success);
  color: #fff;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: .7rem;
  text-transform: uppercase;
  font-weight: 700;
}

.no-user-selected {
  text-align: center;
  padding: 28px;
  color: var(--text-secondary);
}

.btn-select-user {
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  padding: 7px 16px;
  border-radius: var(--radius-sm);
  font-size: .85rem;
  font-weight: 500;
  transition: background var(--transition);
}
.btn-select-user:hover {
  background: var(--accent-hover);
  color: #fff;
  text-decoration: none;
}

.loading-message {
  text-align: center;
  padding: 18px;
  color: var(--text-muted);
}

/* ---------- User Table ---------- */
.user-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 8px;
}
.user-table th, .user-table td {
  padding: 8px 10px;
  border: 1px solid var(--border-color);
  font-size: .875rem;
}
.user-table th {
  background: var(--bg-badge);
  text-align: left;
  font-weight: 600;
}
.selected-user {
  background: rgba(59,130,246,.08) !important;
  border-left: 3px solid var(--accent);
}
.disabled { color: var(--text-muted); }

/* ---------- Auth Styles ---------- */
.authorize-section .description,
.backup-section .description {
  font-size: .95rem;
  color: var(--text-secondary);
  margin-bottom: 18px;
  text-align: center;
}

.auth-steps {
  margin-bottom: 20px;
  padding: 16px;
  background: var(--bg-badge);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}
.auth-steps p {
  margin-bottom: 8px;
  color: var(--text-primary);
  font-size: .9rem;
}

.auth-link { margin: 10px 0 18px; }

.oauth-code {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  background: var(--bg-code);
  border: 1px solid var(--border-color);
  padding: 12px;
  border-radius: var(--radius-sm);
  word-break: break-all;
  text-align: center;
  margin-bottom: 14px;
  font-size: .95rem;
  color: var(--text-primary);
}

/* ---------- Step Containers (Users page) ---------- */
.step-container {
  margin-bottom: 20px;
  padding: 20px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  transition: border-color var(--transition), background var(--transition);
}

.step-container.active {
  border-color: var(--accent);
  background: rgba(59,130,246,.04);
}

[data-theme="dark"] .step-container.active {
  background: rgba(59,130,246,.06);
}

.step-container.completed {
  border-color: var(--success);
  background: rgba(16,185,129,.04);
}

[data-theme="dark"] .step-container.completed {
  background: rgba(16,185,129,.06);
}

.step-header {
  display: flex;
  align-items: center;
  margin-bottom: 14px;
}

.step-number {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg-badge);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: .8rem;
  margin-right: 12px;
  transition: background var(--transition), color var(--transition);
}

.step-container.active .step-number {
  background: var(--accent);
  color: #fff;
}

.step-container.completed .step-number {
  background: var(--success);
  color: #fff;
}

.step-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.server-list, .user-list {
  display: grid;
  gap: 8px;
  margin-top: 10px;
}

.server-item, .user-item {
  padding: 12px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
  color: var(--text-primary);
  font-size: .9rem;
}

.server-item:hover, .user-item:hover {
  border-color: var(--accent);
  background: rgba(59,130,246,.04);
}

.server-item.selected, .user-item.selected {
  border-color: var(--accent);
  background: rgba(59,130,246,.08);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin: 14px 0;
}

.stat-card {
  text-align: center;
  padding: 14px;
  background: var(--bg-badge);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  transition: transform var(--transition), box-shadow var(--transition);
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.stat-number {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.stat-label {
  font-size: .7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .04em;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 7px 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: .85rem;
  font-weight: 500;
  transition: background var(--transition);
}
.btn-primary:hover { background: var(--accent-hover); }

.btn-secondary {
  background: var(--text-muted);
  color: #fff;
  border: none;
  padding: 7px 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: .85rem;
  font-weight: 500;
  margin-left: 8px;
  transition: background var(--transition);
}

.error-message {
  background: #fef2f2;
  color: #991b1b;
  padding: 10px;
  border-radius: var(--radius-sm);
  margin-top: 10px;
  font-size: .875rem;
}

[data-theme="dark"] .error-message {
  background: rgba(239,68,68,.1);
  color: #fca5a5;
}

.success-message {
  background: #ecfdf5;
  color: #065f46;
  padding: 10px;
  border-radius: var(--radius-sm);
  margin-top: 10px;
  font-size: .875rem;
}

[data-theme="dark"] .success-message {
  background: rgba(16,185,129,.1);
  color: #6ee7b7;
}

/* ---------- 2FA Page ---------- */
.two-fa-container {
  max-width: 380px;
  margin: 40px auto;
  padding: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  text-align: center;
}

.two-fa-header { margin-bottom: 24px; }

.two-fa-header h2 {
  color: var(--text-primary);
  margin-bottom: 8px;
  font-size: 1.3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-bottom: none;
  padding-bottom: 0;
}

.two-fa-header p {
  color: var(--text-secondary);
  font-size: .875rem;
}

.code-input {
  width: 100%;
  padding: 14px;
  font-size: 1.3rem;
  text-align: center;
  border: 1px solid var(--border-input);
  border-radius: var(--radius-sm);
  margin: 18px 0;
  letter-spacing: 4px;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  background: var(--bg-input);
  color: var(--text-primary);
  transition: border-color var(--transition);
}

.code-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59,130,246,.15);
}

.submit-btn {
  width: 100%;
  padding: 10px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition);
}
.submit-btn:hover { background: var(--accent-hover); }

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  color: var(--text-link);
  font-size: .85rem;
  text-decoration: none;
}
.back-link:hover { text-decoration: underline; }

/* ---------- 2FA Card ---------- */
.twofa-card {
  max-width: 400px;
  margin: 60px auto;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  text-align: center;
}
.twofa-card h2 {
  margin: 16px 0 8px;
  font-size: 1.3rem;
}
.twofa-icon {
  margin-bottom: 8px;
}
.twofa-input {
  width: 180px;
  margin: 0 auto;
  padding: 12px 16px;
  font-size: 1.8rem;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  letter-spacing: 8px;
  text-align: center;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition);
}
.twofa-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59,130,246,.15);
}

/* ---------- Footer ---------- */
.app-footer {
  background: transparent;
  color: var(--text-muted);
  text-align: center;
  padding: 18px 20px;
  font-size: .8rem;
  border-top: 1px solid var(--border-color);
  margin-top: auto;
}

.app-footer a { color: var(--text-link); }

/* ---------- Overlay (mobile) ---------- */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  z-index: 90;
}

.sidebar-overlay.active { display: block; }

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .main-wrapper {
    margin-left: 0;
  }

  .hamburger-btn {
    display: flex;
  }

  .content-area {
    padding: 18px 16px;
  }

  .card { padding: 18px; }
  .card h2 { font-size: 1rem; }

  .form-actions,
  .stop-form,
  .restore-form {
    flex-direction: column;
    align-items: center;
  }

  .button {
    width: 100%;
    justify-content: center;
  }

  .checkbox-group { flex-wrap: wrap; }

  .direction-select {
    margin-left: 0;
    margin-top: 4px;
    width: 100%;
  }

  .user-card {
    flex-direction: column;
    text-align: center;
    gap: 12px;
  }

  .user-info { flex-direction: column; }
}

@media (max-width: 480px) {
  .top-header { padding: 0 14px; }
  .page-title { font-size: .95rem; }
  .card { padding: 14px; }
}

/* ---------- Utilities ---------- */
.text-center { text-align: center; }
.text-muted { color: var(--text-secondary); }
.text-sm { font-size: .85rem; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.mb-3 { margin-bottom: 12px; }

.description {
  font-size: .9rem;
  color: var(--text-secondary);
  margin-bottom: 18px;
  text-align: center;
}

.warning-box {
  background: rgba(245,158,11,.08);
  border: 1px solid rgba(245,158,11,.25);
  color: #92400e;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  margin-top: 10px;
  font-size: .85rem;
}

[data-theme="dark"] .warning-box {
  background: rgba(245,158,11,.08);
  color: #fbbf24;
  border-color: rgba(245,158,11,.2);
}
/* ---------- Login Page ---------- */
.login-wrapper {
  min-height: 100vh;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-body);
  padding: 20px;
}

.login-card {
  width: 100%;
  max-width: 420px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px 32px 32px;
  box-shadow: var(--shadow-lg);
}

.login-header {
  text-align: center;
  margin-bottom: 28px;
}

.login-logo {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  margin: 0 auto 16px;
}

.login-header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.login-subtitle {
  color: var(--text-muted);
  font-size: .9rem;
}

.login-form .form-group {
  margin-bottom: 16px;
}

.login-btn {
  width: 100%;
  padding: 11px;
  font-size: .95rem;
  margin-top: 8px;
}

.login-footer {
  text-align: center;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: .8rem;
}

/* ---------- Config Tabs ---------- */
.config-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 4px;
  box-shadow: var(--shadow-sm);
}

.config-tab {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-secondary);
  font-size: .875rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.config-tab:hover {
  background: var(--bg-badge);
  color: var(--text-primary);
}

.config-tab.active {
  background: var(--accent);
  color: #fff;
}

.config-tab svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.config-tab-content {
  display: none;
}

.config-tab-content.active {
  display: block;
}

/* ---------- Disconnect Grid ---------- */
.disconnect-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.disconnect-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition);
}

.disconnect-item:hover {
  border-color: var(--danger);
}

.disconnect-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.disconnect-info strong {
  font-size: .95rem;
  color: var(--text-primary);
}

@media (max-width: 480px) {
  .disconnect-item {
    flex-direction: column;
    gap: 10px;
    text-align: center;
  }
  .config-tabs {
    flex-direction: column;
  }
}

/* ---- Redirect URI Management ---- */
.redirect-section {
  margin-top: 1.25rem;
}
.redirect-section h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: .5rem;
}
.redirect-active-info {
  display: flex;
  align-items: center;
  gap: .5rem;
  margin-bottom: .75rem;
  flex-wrap: wrap;
}
.redirect-active-info code {
  background: var(--bg-badge);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: .85rem;
  word-break: break-all;
  color: var(--text-primary);
}
.redirect-uri-list {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  margin-bottom: .75rem;
}
.redirect-uri-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  padding: .5rem .75rem;
  border-radius: 8px;
  background: var(--bg-badge);
  border: 1px solid var(--border-color);
}
.redirect-uri-item.active {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, var(--bg-badge));
}
.redirect-uri-text {
  display: flex;
  align-items: center;
  gap: .5rem;
  flex: 1;
  min-width: 0;
  flex-wrap: wrap;
}
.redirect-uri-text code {
  font-size: .85rem;
  word-break: break-all;
  color: var(--text-primary);
}
.redirect-uri-actions {
  display: flex;
  gap: .375rem;
  flex-shrink: 0;
}
.btn-sm {
  padding: 4px 10px !important;
  font-size: .8rem !important;
  min-height: auto !important;
}
.badge-active {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 9999px;
  font-size: .75rem;
  font-weight: 600;
  background: var(--accent);
  color: #fff;
}
.redirect-add-form {
  display: flex;
  gap: .5rem;
  align-items: center;
}
.redirect-add-form .form-input {
  flex: 1;
  margin-bottom: 0;
}
.redirect-add-form .button {
  flex-shrink: 0;
}

@media (max-width: 600px) {
  .redirect-uri-item {
    flex-direction: column;
    align-items: flex-start;
  }
  .redirect-add-form {
    flex-direction: column;
  }
  .redirect-add-form .form-input {
    width: 100%;
  }
}