/* Design System: SmartCalls Minimalist Top-Navbar Theme (Light & Dark Modes) */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* Default Light Theme */
:root {
    --bg-gradient: #f8fafc;
    --panel-bg: #ffffff;
    --panel-border: #f1f5f9;
    --control-bg: #f8fafc;
    --item-bg: #f8fafc;
    --item-hover-bg: #f1f5f9;
    
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    
    --accent-color: #4f46e5; /* Premium Indigo */
    --accent-hover: #3730a3;
    
    --success-color: #10b981;
    --success-bg: rgba(16, 185, 129, 0.08);
    
    --warning-color: #f59e0b;
    
    --danger-color: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.08);
    
    --card-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.05), 0 1px 2px -1px rgba(0, 0, 0, 0.05);
    --font-sans: 'Inter', -apple-system, sans-serif;
}

/* Dark Theme overrides */
body.dark-theme {
    --bg-gradient: #0f172a;
    --panel-bg: #1e293b;
    --panel-border: #334155;
    --control-bg: #1e293b;
    --item-bg: #0f172a;
    --item-hover-bg: #1e293b;
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    
    --accent-color: #818cf8;
    --accent-hover: #6366f1;
    
    --success-color: #34d399;
    --success-bg: rgba(52, 211, 153, 0.12);
    
    --warning-color: #fbbf24;
    
    --danger-color: #f87171;
    --danger-bg: rgba(248, 113, 113, 0.12);
    
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
}

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

body {
    font-family: var(--font-sans);
    background: var(--bg-gradient);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background 0.2s ease, color 0.2s ease;
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: all 0.2s ease;
}

a:hover {
    color: var(--accent-hover);
}

/* Base Top-Navbar Layout */
.top-navbar {
    background: var(--panel-bg);
    border-bottom: 1px solid var(--panel-border);
    position: sticky;
    top: 0;
    z-index: 100;
    height: 70px;
    display: flex;
    align-items: center;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.02);
    transition: background 0.2s ease, border 0.2s ease;
}

.navbar-container {
    width: 100%;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
    white-space: nowrap;
    flex: 1;
}

.top-navbar nav {
    display: flex;
    justify-content: center;
    flex: 2;
}

.logo-icon {
    font-size: 1.5rem;
    color: var(--accent-color);
}

.nav-links {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    height: 70px;
}

.nav-item {
    display: flex;
    align-items: center;
    height: 100%;
}

.nav-item a {
    display: flex;
    align-items: center;
    padding: 0 0.5rem;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.95rem;
    height: 70px;
    border-bottom: 3px solid transparent;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.nav-item.active a, .nav-item a:hover {
    color: var(--accent-color);
    background: none;
    border-bottom: 3px solid var(--accent-color);
}

.user-section {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 1rem;
    white-space: nowrap;
    flex: 1;
}

.user-info {
    text-align: right;
    font-size: 0.9rem;
    white-space: nowrap;
}

.main-content {
    flex: 1;
    width: 100%;
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1.5rem;
}

/* Panels and Cards */
.glass-panel {
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: 0.75rem;
    padding: 1.5rem;
    box-shadow: var(--card-shadow);
    margin-bottom: 1.5rem;
    transition: background 0.2s ease, border 0.2s ease, box-shadow 0.2s ease;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--panel-border);
    padding-bottom: 1rem;
}

.page-title {
    font-size: 1.5rem;
    font-weight: 600;
}

/* Stats Widgets Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
}

.stat-icon {
    width: 42px;
    height: 42px;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.stat-icon.blue { color: #3b82f6; background: rgba(59, 130, 246, 0.08); }
.stat-icon.green { color: var(--success-color); background: var(--success-bg); }
.stat-icon.yellow { color: var(--warning-color); background: rgba(245, 158, 11, 0.08); }
.stat-icon.red { color: var(--danger-color); background: var(--danger-bg); }

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: 1.35rem;
    font-weight: 700;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Filters and Controls */
.filter-form {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: flex-end;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.filter-group label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-control, .btn {
    height: 38px;
    background: var(--control-bg);
    border: 1px solid var(--panel-border);
    color: var(--text-primary);
    border-radius: 0.375rem;
    padding: 0 0.85rem;
    font-family: var(--font-sans);
    font-size: 0.875rem;
    outline: none;
    transition: all 0.2s ease;
}

.form-control:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.1);
}

select.form-control {
    background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 14px;
    padding-right: 1.75rem;
    appearance: none;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 550;
    cursor: pointer;
    background: var(--accent-color);
    color: #ffffff;
    border: none;
    gap: 0.35rem;
}

.btn:hover {
    background: var(--accent-hover);
}

.btn-secondary {
    background: var(--item-bg);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: var(--item-hover-bg);
}

/* Tables */
.table-responsive {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th, .table td {
    padding: 0.85rem;
    border-bottom: 1px solid var(--panel-border);
}

.table th {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.8rem;
    text-transform: uppercase;
}

.table tr:hover td {
    background: var(--item-hover-bg);
}

/* Call Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.15rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    font-weight: 500;
}

.badge-incoming {
    background: var(--success-bg);
    color: var(--success-color);
}

.badge-outgoing {
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
}

.badge-answered {
    background: var(--success-bg);
    color: var(--success-color);
}

.badge-unanswered {
    background: var(--danger-bg);
    color: var(--danger-color);
}

/* Custom Audio Player */
.audio-player-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.play-btn {
    width: 28px;
    height: 28px;
    border-radius: 0.25rem;
    background: var(--accent-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    cursor: pointer;
    font-size: 0.75rem;
    transition: all 0.2s ease;
}

.play-btn:hover {
    background: var(--accent-hover);
}

/* Layout Split */
.dashboard-grid {
    display: grid;
    grid-template-columns: 2.2fr 1fr;
    gap: 1.25rem;
}

@media(max-width: 992px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

.leaderboard-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.leaderboard-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.65rem 0.85rem;
    background: var(--item-bg);
    border: 1px solid var(--panel-border);
    border-radius: 0.375rem;
}

.leaderboard-name {
    font-weight: 500;
    font-size: 0.9rem;
}

.leaderboard-stats {
    font-size: 0.8rem;
}

.footer {
    padding: 1.25rem;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.75rem;
    border-top: 1px solid var(--panel-border);
    background: var(--panel-bg);
    margin-top: auto;
    transition: background 0.2s ease, border 0.2s ease;
}

/* Theme Switcher Button */
.theme-switch-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 0.25rem;
    border: 1px solid var(--panel-border);
    transition: all 0.2s ease;
}

.theme-switch-btn:hover {
    color: var(--text-primary);
    background: var(--item-hover-bg);
}