:root {
    --bg-color: #0f172a;
    --sidebar-bg: #1e293b;
    --card-bg: rgba(30, 41, 59, 0.7);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #3b82f6;
    --accent-hover: #2563eb;
    --highlight: #10b981;
    --glass-border: rgba(255, 255, 255, 0.05);
}

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

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

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

/* Sidebar */
.sidebar {
    width: 250px;
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    padding: 2rem 0;
}

.logo {
    padding: 0 2rem 2rem;
    border-bottom: 1px solid var(--glass-border);
    margin-bottom: 2rem;
}

.logo h2 {
    font-size: 1.5rem;
    background: linear-gradient(to right, var(--accent-color), var(--highlight));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 800;
}

.nav-menu {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 0 1rem;
}

.nav-item {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-weight: 400;
    cursor: pointer;
    display: block;
}

.nav-item:hover, .nav-item.active {
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--accent-color);
    transform: translateX(5px);
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 2rem 3rem;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
}

.topbar h1 {
    font-size: 2rem;
    font-weight: 600;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.memo-widget {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    background-color: var(--card-bg);
    padding: 0.5rem 1.2rem;
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(5px);
}

.clock {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    font-size: 0.85rem;
}

.clock-label {
    color: var(--text-secondary);
}

.clock-time {
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.clock-time.highlight {
    color: var(--highlight);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--card-bg);
    padding: 0.6rem 1.2rem;
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    font-size: 0.9rem;
}

.status.online {
    width: 10px;
    height: 10px;
    background-color: var(--highlight);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--highlight);
}

/* Cards & Stats */
.dashboard-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.card {
    background-color: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1.5rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.stat-card h3 {
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 400;
    margin-bottom: 1rem;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 800;
}

.stat-card.highlight .stat-value {
    color: var(--highlight);
}

/* Table Section */
.recent-activity h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.table-container {
    overflow-x: auto;
    padding: 0;
}

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

th, td {
    padding: 1rem 1.5rem;
    text-align: left;
    border-bottom: 1px solid var(--glass-border);
}

th {
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
}

tr:last-child td {
    border-bottom: none;
}

tbody tr {
    transition: background-color 0.2s ease;
}

tbody tr:hover {
    background-color: rgba(255, 255, 255, 0.02);
}

.revenue {
    color: var(--highlight);
    font-weight: 600;
}

/* Responsive */
@media (max-width: 768px) {
    .app-container {
        flex-direction: column;
    }
    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--glass-border);
        padding: 1rem;
    }
    .main-content {
        padding: 1.5rem;
    }
}