/* ===== THEMES ===== */
:root, [data-theme="deep-space"] {
  --bg-primary: #0b1120; --bg-secondary: #111827; --bg-tertiary: #0f172a;
  --border: #1e293b; --text-primary: #e2e8f0; --text-secondary: #94a3b8;
  --text-muted: #64748b; --accent: #38bdf8; --accent-hover: #7dd3fc;
  --success: #22c55e; --warning: #f59e0b; --danger: #ef4444; --purple: #8b5cf6;
  --sidebar-bg: #111827; --card-bg: #111827; --input-bg: #0b1120; --hover-bg: #1e293b;
  --shadow: none; --gradient: linear-gradient(135deg, #38bdf8, #8b5cf6);
}
[data-theme="pure-light"] {
  --bg-primary: #f8fafc; --bg-secondary: #fff; --bg-tertiary: #f1f5f9;
  --border: #e2e8f0; --text-primary: #0f172a; --text-secondary: #475569;
  --text-muted: #94a3b8; --accent: #0284c7; --accent-hover: #0369a1;
  --success: #16a34a; --warning: #d97706; --danger: #dc2626; --purple: #7c3aed;
  --sidebar-bg: #fff; --card-bg: #fff; --input-bg: #f8fafc; --hover-bg: #f1f5f9;
  --shadow: 0 1px 3px rgba(0,0,0,0.08); --gradient: linear-gradient(135deg, #0284c7, #7c3aed);
}
[data-theme="sakura"] {
  --bg-primary: #fdf2f8; --bg-secondary: #fff1f2; --bg-tertiary: #fce7f3;
  --border: #fbcfe8; --text-primary: #831843; --text-secondary: #9d174d;
  --text-muted: #db2777; --accent: #ec4899; --accent-hover: #db2777;
  --success: #10b981; --warning: #f59e0b; --danger: #ef4444; --purple: #a855f7;
  --sidebar-bg: #fff1f2; --card-bg: #fff; --input-bg: #fdf2f8; --hover-bg: #fce7f3;
  --shadow: 0 1px 3px rgba(236,72,153,0.1); --gradient: linear-gradient(135deg, #ec4899, #a855f7);
}
[data-theme="midnight"] {
  --bg-primary: #0c0a1d; --bg-secondary: #14102e; --bg-tertiary: #1a1540;
  --border: #2d2350; --text-primary: #e8e0f0; --text-secondary: #a894d0;
  --text-muted: #7c6aa0; --accent: #a855f7; --accent-hover: #c084fc;
  --success: #22c55e; --warning: #f59e0b; --danger: #ef4444; --purple: #a855f7;
  --sidebar-bg: #14102e; --card-bg: #14102e; --input-bg: #0c0a1d; --hover-bg: #2d2350;
  --shadow: none; --gradient: linear-gradient(135deg, #a855f7, #6366f1);
}
[data-theme="ocean"] {
  --bg-primary: #ecfeff; --bg-secondary: #f0fdfa; --bg-tertiary: #ccfbf1;
  --border: #99f6e4; --text-primary: #134e4a; --text-secondary: #0f766e;
  --text-muted: #14b8a6; --accent: #0d9488; --accent-hover: #0f766e;
  --success: #10b981; --warning: #f59e0b; --danger: #ef4444; --purple: #8b5cf6;
  --sidebar-bg: #f0fdfa; --card-bg: #fff; --input-bg: #ecfeff; --hover-bg: #ccfbf1;
  --shadow: 0 1px 3px rgba(13,148,136,0.1); --gradient: linear-gradient(135deg, #0d9488, #0891b2);
}
[data-theme="forest"] {
  --bg-primary: #052e16; --bg-secondary: #0a3d1a; --bg-tertiary: #0f4d22;
  --border: #166534; --text-primary: #dcfce7; --text-secondary: #86efac;
  --text-muted: #4ade80; --accent: #22c55e; --accent-hover: #4ade80;
  --success: #22c55e; --warning: #f59e0b; --danger: #ef4444; --purple: #a855f7;
  --sidebar-bg: #0a3d1a; --card-bg: #0a3d1a; --input-bg: #052e16; --hover-bg: #166534;
  --shadow: none; --gradient: linear-gradient(135deg, #22c55e, #06b6d4);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; background: var(--bg-primary); color: var(--text-primary); min-height: 100vh; }
a { color: var(--accent); text-decoration: none; }

.app-container { display: flex; min-height: 100vh; gap: 0; }

/* ===== SIDEBAR (book-style side tabs) ===== */
.sidebar { width: 200px; background: var(--sidebar-bg); border-right: 1px solid var(--border); flex-shrink: 0; display: flex; flex-direction: column; transition: width 0.2s; overflow: hidden; position: relative; }
.sidebar.collapsed { display: none; }
.sidebar .logo { padding: 24px 20px 14px; font-size: 18px; font-weight: 700; color: var(--accent); line-height: 1.4; letter-spacing: 1px; }
.sidebar .logo span { color: var(--warning); }
.sidebar .logo .sub { font-size: 9px; color: var(--text-muted); font-weight: 500; letter-spacing: 3px; display: block; margin-top: 3px; text-transform: uppercase; }
.sidebar-controls { padding: 12px 16px; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); margin: 0 0 6px; }
.sidebar-controls .ctrl-row { display: flex; gap: 6px; align-items: center; margin-bottom: 6px; flex-wrap: wrap; }
.sidebar-controls .ctrl-row:last-child { margin-bottom: 0; }
.sidebar nav { flex: 1; padding: 2px 0; }
.sidebar nav a { display: flex; align-items: center; gap: 10px; padding: 11px 18px; color: var(--text-secondary); transition: all 0.15s; font-size: 13px; white-space: nowrap; border-left: 3px solid transparent; }
.sidebar nav a:hover { background: var(--hover-bg); color: var(--text-primary); }
.sidebar nav a.active { background: var(--hover-bg); color: var(--text-primary); border-left-color: var(--accent); font-weight: 600; }
.sidebar nav a .icon { font-size: 15px; width: 20px; text-align: center; flex-shrink: 0; }
.lang-btn { background: var(--hover-bg); border: 1px solid var(--border); color: var(--text-secondary); padding: 5px 10px; border-radius: 6px; cursor: pointer; font-size: 11px; transition: all 0.2s; white-space: nowrap; font-weight: 500; }
.lang-btn:hover { background: var(--border); color: var(--text-primary); }
.lang-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.theme-dot { width: 18px; height: 18px; border-radius: 50%; border: 2px solid var(--border); cursor: pointer; transition: all 0.2s; flex-shrink: 0; }
.theme-dot:hover, .theme-dot.active { border-color: var(--accent); transform: scale(1.2); }
.theme-picker { display: flex; gap: 5px; flex-wrap: wrap; }

/* Bookmark tab - always visible, click to toggle sidebar */
.sidebar-tab { position: fixed; top: 80px; left: 0; width: 18px; height: 50px; background: var(--gradient); border-radius: 0 6px 6px 0; cursor: pointer; z-index: 30; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 11px; box-shadow: 2px 2px 6px rgba(0,0,0,0.2); transition: left 0.2s; }
.sidebar-tab:hover { width: 22px; }
.sidebar.collapsed ~ .sidebar-tab { left: 0; }
.main-content.tab-shown { padding-left: 42px; }

.main-content { flex: 1; padding: 24px 24px 24px 30px; overflow-y: auto; background: var(--bg-primary); min-width: 0; }

/* ===== CARDS ===== */
.card { background: var(--card-bg); border-radius: 10px; padding: 18px; margin-bottom: 14px; border: 1px solid var(--border); box-shadow: var(--shadow); }
.card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; flex-wrap: wrap; gap: 8px; }
.card-header h2 { font-size: 15px; font-weight: 600; }

/* ===== STATS ===== */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 10px; margin-bottom: 18px; }
.stat-card { background: var(--card-bg); border-radius: 10px; padding: 14px; border: 1px solid var(--border); position: relative; overflow: hidden; box-shadow: var(--shadow); }
.stat-card .label { font-size: 10px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; }
.stat-card .value { font-size: 22px; font-weight: 700; margin-top: 4px; }
.stat-card .sub { font-size: 10px; color: var(--text-muted); margin-top: 2px; }
.stat-card .icon-bg { position: absolute; right: -6px; bottom: -6px; font-size: 42px; opacity: 0.04; }

/* ===== FORMS ===== */
.form-group { margin-bottom: 12px; }
.form-group label { display: block; font-size: 12px; color: var(--text-secondary); margin-bottom: 4px; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 8px 10px; background: var(--input-bg); border: 1px solid var(--border); border-radius: 7px; color: var(--text-primary); font-size: 13px; outline: none; }
.form-group input:focus, .form-group select:focus { border-color: var(--accent); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

/* ===== BUTTONS ===== */
.btn { display: inline-flex; align-items: center; gap: 5px; padding: 8px 16px; border: none; border-radius: 7px; font-size: 13px; font-weight: 500; cursor: pointer; transition: all 0.2s; }
.btn-primary { background: var(--gradient); color: #fff; }
.btn-primary:hover { opacity: 0.9; }
.btn-secondary { background: var(--hover-bg); color: var(--text-primary); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--border); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-success { background: var(--success); color: #fff; }
.btn-sm { padding: 5px 10px; font-size: 11px; }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ===== TABLES ===== */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; min-width: 460px; }
th, td { padding: 8px 10px; text-align: left; border-bottom: 1px solid var(--border); font-size: 13px; }
th { color: var(--text-muted); font-weight: 500; font-size: 10px; text-transform: uppercase; letter-spacing: 1px; }
tr:hover { background: var(--hover-bg); }

/* ===== BADGES ===== */
.badge { display: inline-block; padding: 2px 7px; border-radius: 20px; font-size: 10px; font-weight: 600; }
.badge-active { background: color-mix(in srgb, var(--success) 15%, transparent); color: var(--success); border: 1px solid color-mix(in srgb, var(--success) 30%, transparent); }
.badge-pending { background: color-mix(in srgb, var(--warning) 15%, transparent); color: var(--warning); border: 1px solid color-mix(in srgb, var(--warning) 30%, transparent); }
.badge-inactive { background: color-mix(in srgb, var(--danger) 15%, transparent); color: var(--danger); border: 1px solid color-mix(in srgb, var(--danger) 30%, transparent); }
.badge-locked { background: color-mix(in srgb, var(--purple) 15%, transparent); color: var(--purple); border: 1px solid color-mix(in srgb, var(--purple) 30%, transparent); }
.badge-idle { background: color-mix(in srgb, var(--success) 15%, transparent); color: var(--success); border: 1px solid color-mix(in srgb, var(--success) 30%, transparent); }

/* ===== AUTH ===== */
.auth-page { display: flex; justify-content: center; align-items: center; min-height: 100vh; padding: 20px; }
.auth-card { background: var(--card-bg); border-radius: 16px; padding: 28px; width: 100%; max-width: 360px; border: 1px solid var(--border); box-shadow: var(--shadow); }
.auth-card h1 { font-size: 24px; margin-bottom: 4px; background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.auth-card p { color: var(--text-muted); margin-bottom: 18px; font-size: 13px; }
.auth-card .switch { text-align: center; margin-top: 12px; font-size: 13px; color: var(--text-muted); }

/* ===== TOAST ===== */
.toast { position: fixed; top: 14px; right: 14px; padding: 10px 16px; border-radius: 8px; color: #fff; font-size: 13px; z-index: 1000; animation: slideIn 0.3s; }
.toast-success { background: var(--success); }
.toast-error { background: var(--danger); }
.toast-info { background: var(--accent); }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* ===== MODAL ===== */
.modal-overlay { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0,0,0,0.45); display: flex; justify-content: center; align-items: center; z-index: 100; padding: 14px; }
.modal { background: var(--card-bg); border-radius: 14px; padding: 22px; width: 480px; max-width: 100%; border: 1px solid var(--border); max-height: 80vh; overflow-y: auto; box-shadow: var(--shadow); }
.modal h2 { margin-bottom: 14px; font-size: 17px; }

/* ===== STARS ===== */
.stars { color: var(--warning); font-size: 14px; letter-spacing: 2px; }
.stars .dim { color: var(--border); }

/* ===== KEY CARDS ===== */
.key-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 10px; }
.key-card { background: var(--card-bg); border-radius: 10px; padding: 14px; border: 1px solid var(--border); transition: all 0.2s; cursor: pointer; box-shadow: var(--shadow); }
.key-card:hover { border-color: var(--accent); transform: translateY(-1px); }
.key-card.locked { border-color: var(--purple); opacity: 0.65; cursor: not-allowed; }
.key-card.locked:hover { transform: none; }
.key-card.selected { border-color: var(--success); box-shadow: 0 0 0 2px color-mix(in srgb, var(--success) 25%, transparent); }
.key-card .card-top { display: flex; justify-content: space-between; align-items: start; margin-bottom: 8px; gap: 8px; }
.key-card .plan-name { font-size: 14px; font-weight: 600; word-break: break-all; }
.key-card .model-name { font-size: 11px; color: var(--text-secondary); }
.key-card .stat-row { display: flex; justify-content: space-between; font-size: 12px; color: var(--text-secondary); margin-top: 5px; padding-top: 5px; border-top: 1px solid var(--border); }
.key-card .stat-row .val { color: var(--text-primary); font-weight: 500; }
.key-card .actions { margin-top: 8px; display: flex; gap: 6px; flex-wrap: wrap; }

/* ===== PAGE ===== */
.page { display: none; }
.page.active { display: block; }

/* ===== EMPTY / LOADING ===== */
.empty-state { text-align: center; padding: 32px 14px; color: var(--text-muted); }
.empty-state .icon { font-size: 36px; margin-bottom: 8px; }
.loading { text-align: center; padding: 32px; color: var(--text-muted); }
.spinner { display: inline-block; width: 20px; height: 20px; border: 3px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== MISC ===== */
.copy-btn { background: none; border: 1px solid var(--border); color: var(--text-muted); padding: 3px 6px; border-radius: 4px; cursor: pointer; font-size: 10px; }
.copy-btn:hover { background: var(--hover-bg); color: var(--text-primary); }
.progress-bar { height: 4px; background: var(--input-bg); border-radius: 3px; overflow: hidden; margin-top: 5px; }
.progress-bar .fill { height: 100%; border-radius: 3px; transition: width 0.5s; }
.progress-bar .fill.green { background: var(--success); }
.progress-bar .fill.yellow { background: var(--warning); }
.progress-bar .fill.red { background: var(--danger); }
.alert { padding: 9px 12px; border-radius: 8px; font-size: 12px; margin-bottom: 12px; }
.alert-warning { background: color-mix(in srgb, var(--warning) 15%, transparent); border: 1px solid color-mix(in srgb, var(--warning) 30%, transparent); color: var(--warning); }
.alert-danger { background: color-mix(in srgb, var(--danger) 15%, transparent); border: 1px solid color-mix(in srgb, var(--danger) 30%, transparent); color: var(--danger); }
.alert-success { background: color-mix(in srgb, var(--success) 15%, transparent); border: 1px solid color-mix(in srgb, var(--success) 30%, transparent); color: var(--success); }
code { background: var(--input-bg); padding: 2px 4px; border-radius: 3px; font-size: 11px; }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .sidebar { width: 170px; }
  .sidebar .logo { padding: 18px 16px 10px; font-size: 16px; }
  .sidebar nav a { padding: 9px 14px; font-size: 12px; }
  .sidebar-controls { padding: 10px 14px; }
  .main-content { padding: 14px 14px 14px 18px; }
  .main-content.tab-shown { padding-left: 36px; }
  .sidebar-tab { top: 14px; width: 16px; height: 42px; font-size: 10px; }
  .main-content.tab-shown { padding-left: 36px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .key-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .stat-card .value { font-size: 18px; }
  .stat-card { padding: 12px; }
  .card { padding: 12px; }
  .modal { padding: 16px; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .main-content { padding: 10px; }
  .card { padding: 10px; }
  .auth-card { padding: 18px; }
  .sidebar { width: 140px; }
  .sidebar.collapsed { width: 0; }
  .sidebar-tab { top: 14px; width: 24px; height: 50px; font-size: 14px; }
  .stat-card .value { font-size: 16px; }
  .key-card { padding: 10px; }
}