:root {
    --bg-main: #0a0e17;
    --bg-secondary: #111827;
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --accent-primary: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.5);
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --sidebar-width: 260px;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

.dashboard-container {
    display: flex;
    min-height: 100vh;
}

/* Glassmorphism Utilities */
.glass-effect {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 10;
}

.sidebar-header {
    padding: 2rem 1.5rem;
}

.sidebar-header h2 {
    font-size: 1.25rem;
    font-weight: 700;
    background: linear-gradient(90deg, #fff, #a5b4fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 0.5px;
}

.sidebar-nav {
    flex: 1;
    padding: 0 1rem;
}

.sidebar-nav ul {
    list-style: none;
}

.sidebar-nav li {
    margin-bottom: 0.5rem;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 10px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.sidebar-nav a:hover, .sidebar-nav li.active a {
    background: rgba(59, 130, 246, 0.1);
    color: var(--text-primary);
}

.sidebar-nav li.active a {
    border-left: 3px solid var(--accent-primary);
    box-shadow: inset 20px 0 20px -20px var(--accent-glow);
}

.sidebar-nav .icon {
    margin-right: 12px;
    font-style: normal;
}

.sidebar-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--glass-border);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-primary), #8b5cf6);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.9rem;
}

.details {
    display: flex;
    flex-direction: column;
}

.name {
    font-size: 0.9rem;
    font-weight: 600;
}

.role {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
}

/* Topbar */
.topbar {
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    background-color: rgba(17, 24, 39, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    position: sticky;
    top: 0;
    z-index: 5;
}

.search-bar input {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    padding: 0.6rem 1.2rem;
    border-radius: 20px;
    width: 300px;
    outline: none;
    transition: all 0.3s ease;
}

.search-bar input:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 10px rgba(59, 130, 246, 0.2);
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.notification-btn {
    background: transparent;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    position: relative;
    padding: 0.5rem;
}

.badge {
    position: absolute;
    top: 0;
    right: 0;
    background: var(--danger);
    color: white;
    font-size: 0.6rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 10px;
}

/* Content Wrapper */
.content-wrapper {
    padding: 2rem;
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
}

.welcome-section {
    margin-bottom: 2rem;
}

.welcome-section h1 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.welcome-section p {
    color: var(--text-secondary);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    padding: 1.5rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2), 0 0 15px rgba(59, 130, 246, 0.1);
}

.stat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.stat-header h3 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.trend {
    font-size: 0.8rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 12px;
}

.trend.positive {
    color: var(--success);
    background: rgba(16, 185, 129, 0.1);
}

.trend.negative {
    color: var(--danger);
    background: rgba(239, 68, 68, 0.1);
}

.stat-value {
    font-size: 1.8rem;
    font-weight: 700;
}

/* Charts Section */
.charts-section {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1.5rem;
}

.chart-card, .side-panel {
    padding: 1.5rem;
}

.chart-card h3, .side-panel h3 {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.chart-container {
    height: 300px;
    width: 100%;
}

/* Activity List */
.activity-list {
    list-style: none;
}

.activity-list li {
    display: flex;
    gap: 15px;
    margin-bottom: 1.5rem;
    position: relative;
}

.activity-list li:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 17px;
    top: 35px;
    bottom: -15px;
    width: 2px;
    background: var(--glass-border);
}

.activity-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    z-index: 1;
}

.activity-icon.blue { background: rgba(59, 130, 246, 0.2); }
.activity-icon.green { background: rgba(16, 185, 129, 0.2); }
.activity-icon.purple { background: rgba(139, 92, 246, 0.2); }

.activity-text {
    flex: 1;
    font-size: 0.9rem;
    line-height: 1.4;
}

.activity-text strong {
    color: var(--text-primary);
}

.activity-text .time {
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* Responsive */
@media (max-width: 1024px) {
    .charts-section {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .main-content {
        margin-left: 0;
    }
}