/* ─── 亮色主题(默认) ─── */
:root {
    --bg: #f5f7fa;
    --surface: #ffffff;
    --surface2: #f0f2f5;
    --border: #e2e8f0;
    --text: #1a202c;
    --text-dim: #64748b;
    --primary: #6c5ce7;
    --primary-hover: #5a4bd1;
    --success: #00b894;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;
    --live: #ef4444;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-lg: 0 4px 12px rgba(0,0,0,0.1);
}

/* ─── 暗色主题 ─── */
[data-theme="dark"] {
    --bg: #0f0f23;
    --surface: #1a1a2e;
    --surface2: #16213e;
    --border: #2a2a4a;
    --text: #e0e0e0;
    --text-dim: #8892b0;
    --primary: #6c5ce7;
    --primary-hover: #5a4bd1;
    --success: #00b894;
    --warning: #fdcb6e;
    --danger: #e74c3c;
    --info: #0984e3;
    --live: #e74c3c;
    --shadow: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-lg: 0 4px 12px rgba(0,0,0,0.4);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: -apple-system, 'Segoe UI', 'Microsoft YaHei', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    font-size: 14px;
    transition: background 0.2s, color 0.2s;
}

/* Navbar */
.navbar {
    display: flex;
    align-items: center;
    padding: 0 24px;
    height: 56px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}
.nav-brand { display: flex; align-items: center; gap: 8px; font-size: 18px; font-weight: 700; }
.nav-brand a { color: var(--text); text-decoration: none; }
.nav-logo { font-size: 24px; }
.nav-links { display: flex; gap: 4px; margin-left: 32px; flex: 1; }
.nav-links a {
    color: var(--text-dim);
    text-decoration: none;
    padding: 6px 14px;
    border-radius: 6px;
    transition: all 0.2s;
}
.nav-links a:hover { color: var(--text); background: var(--surface2); }
.nav-links a.active { color: var(--primary); background: rgba(108,92,231,0.12); }
.nav-user { display: flex; align-items: center; gap: 12px; }
.nav-user span { color: var(--text-dim); }
.btn-logout { color: var(--danger); text-decoration: none; font-size: 13px; }

/* Theme toggle */
.theme-toggle {
    background: none;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 5px 10px;
    cursor: pointer;
    font-size: 16px;
    color: var(--text);
    transition: all 0.2s;
}
.theme-toggle:hover { background: var(--surface2); }

/* Container */
.container { max-width: 1280px; margin: 0 auto; padding: 24px; }

/* Pages */
.page-title { margin-bottom: 20px; font-size: 24px; }

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}
.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
    box-shadow: var(--shadow);
}
.stat-icon { font-size: 28px; margin-bottom: 8px; }
.stat-value { font-size: 28px; font-weight: 700; }
.stat-label { color: var(--text-dim); font-size: 13px; margin-top: 4px; }

/* Panels */
.panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}
.panel-warning { border-color: var(--warning); }
.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    border-bottom: 1px solid var(--border);
}
.panel-header h2 { font-size: 16px; }
.panel-body { padding: 20px; }

/* Tables */
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); }
.table th { color: var(--text-dim); font-weight: 600; font-size: 13px; }
.table tr:hover td { background: var(--surface2); }

/* Badges */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
}
.badge-success { background: rgba(0,184,148,0.15); color: var(--success); }
.badge-warning { background: rgba(245,158,11,0.15); color: var(--warning); }
.badge-danger { background: rgba(239,68,68,0.15); color: var(--danger); }
.badge-info { background: rgba(59,130,246,0.15); color: var(--info); }
.badge-primary { background: rgba(108,92,231,0.15); color: var(--primary); }
.badge-secondary { background: rgba(100,116,139,0.15); color: var(--text-dim); }
.badge-platform { background: rgba(59,130,246,0.15); color: var(--info); }
.badge-error { background: rgba(239,68,68,0.15); color: var(--danger); }

/* Buttons */
.btn {
    display: inline-block;
    padding: 8px 16px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--surface2);
    color: var(--text);
    cursor: pointer;
    font-size: 13px;
    text-decoration: none;
    transition: all 0.2s;
}
.btn:hover { background: var(--border); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-block { width: 100%; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-success { background: var(--success); border-color: var(--success); color: #fff; }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-warning { background: var(--warning); border-color: var(--warning); color: #fff; }
.btn-info { background: var(--info); border-color: var(--info); color: #fff; }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; color: var(--text-dim); font-size: 13px; }
.form-control {
    width: 100%;
    padding: 8px 12px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    font-size: 14px;
    box-sizing: border-box;
}
.form-control:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(108,92,231,0.1); }
.form-inline { display: flex; gap: 8px; align-items: flex-end; flex-wrap: wrap; }
.form-inline .form-control { flex: 1; min-width: 120px; }
.form-inline .form-group { margin-bottom: 0; }
.checkbox-label { display: flex; align-items: center; gap: 6px; white-space: nowrap; }

/* Switch */
.switch { position: relative; display: inline-block; width: 40px; height: 22px; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; inset: 0; background: var(--border); border-radius: 22px; transition: 0.3s; }
.slider:before { content: ""; position: absolute; height: 16px; width: 16px; left: 3px; bottom: 3px; background: white; border-radius: 50%; transition: 0.3s; }
input:checked + .slider { background: var(--success); }
input:checked + .slider:before { transform: translateX(18px); }

/* Live indicator */
.live-dot {
    display: inline-block;
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--text-dim);
    margin-right: 4px;
}
.live-dot.live { background: var(--live); animation: pulse 1.5s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }

/* Dashboard grid */
.dashboard-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

/* Log items */
.log-item {
    display: flex;
    gap: 8px;
    padding: 6px 0;
    border-bottom: 1px solid var(--border);
    font-size: 13px;
}
.log-time { color: var(--text-dim); white-space: nowrap; }
.log-level { font-weight: 600; min-width: 50px; }
.log-success .log-level { color: var(--success); }
.log-warning .log-level { color: var(--warning); }
.log-error .log-level { color: var(--danger); }
.log-info .log-level { color: var(--info); }
.log-msg { flex: 1; word-break: break-word; }

.log-table td { font-size: 13px; }

/* Empty state */
.empty { text-align: center; padding: 40px; color: var(--text-dim); }

/* Flash messages */
.flash-container { margin-bottom: 16px; }
.flash {
    padding: 10px 16px;
    border-radius: 6px;
    margin-bottom: 8px;
    font-size: 14px;
}
.flash-success { background: rgba(0,184,148,0.1); border: 1px solid var(--success); color: var(--success); }
.flash-error { background: rgba(239,68,68,0.1); border: 1px solid var(--danger); color: var(--danger); }

/* Pagination */
.pagination { display: flex; align-items: center; gap: 12px; justify-content: center; margin-top: 16px; }
.pagination span { color: var(--text-dim); }

/* Modal */
.modal {
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.4);
    display: flex; align-items: center; justify-content: center;
    z-index: 200;
}
.modal-content { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 24px; width: 100%; max-width: 400px; box-shadow: var(--shadow-lg); }
.modal-actions { display: flex; gap: 8px; justify-content: flex-end; }

/* YouTube auth */
.auth-link { display: inline-block; padding: 10px 16px; background: var(--info); border-radius: 6px; color: white; text-decoration: none; }
.config-form { background: var(--bg); padding: 16px; border-radius: 8px; margin-bottom: 16px; }

/* Responsive */
@media (max-width: 768px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .dashboard-grid { grid-template-columns: 1fr; }
    .nav-links { flex-wrap: wrap; }
    .form-inline { flex-direction: column; align-items: stretch; }
    .form-inline .form-control { flex: none; }
}

/* Action buttons */
.action-buttons { display: flex; gap: 4px; flex-wrap: wrap; }
.filter-buttons { display: flex; gap: 4px; }
.filter-buttons .btn.active { background: var(--primary); color: #fff; }

/* GitHub link in navbar */
.nav-github {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 18px;
    padding: 4px 8px;
    border-radius: 6px;
    transition: all 0.2s;
}
.nav-github:hover {
    color: var(--primary);
    background: var(--surface2);
}

/* Version badge */
.nav-version {
    font-size: 11px;
    color: var(--text-dim);
    background: var(--surface2);
    padding: 2px 8px;
    border-radius: 10px;
    border: 1px solid var(--border);
}

/* GitHub icon */
.nav-github {
    display: flex;
    align-items: center;
    color: var(--text-dim);
    text-decoration: none;
    padding: 4px;
    border-radius: 6px;
    transition: all 0.2s;
}
.nav-github:hover {
    color: var(--text);
    background: var(--surface2);
}