@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --primary: #2563EB;
    --primary-dark: #1D4ED8;
    --accent: #F97316;
    --text-main: #111827;
    --text-muted: #6B7280;
    --bg-main: #F3F4F6;
    --bg-white: #FFFFFF;
    --border-color: #E5E7EB;
    --sidebar-width: 260px;
    --radius: 12px;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.5;
    overflow-x: hidden;
}

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

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-white);
    border-right: 1px solid var(--border-color);
    position: fixed;
    height: 100vh;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 2.5rem;
}

.logo span {
    color: var(--accent);
}

.nav-menu {
    list-style: none;
    flex: 1;
}

.nav-item {
    margin-bottom: 0.5rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0.75rem 1rem;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.2s;
    font-weight: 500;
}

.nav-link:hover, .nav-link.active {
    background-color: rgba(37, 99, 235, 0.1);
    color: var(--primary);
}

.nav-link i {
    font-size: 1.2rem;
}

/* Main Content */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    padding: 2rem;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.page-title h1 {
    font-size: 1.5rem;
    font-weight: 700;
}

/* Components */
.card {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    border: none;
    font-size: 0.9rem;
}

.btn-primary {
    background-color: var(--primary);
    color: white;
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
}

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

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

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

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.stat-info .value {
    font-size: 1.25rem;
    font-weight: 700;
}

.stat-info .label {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Table */
.table-container {
    overflow-x: auto;
}

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

th {
    text-align: left;
    padding: 1rem;
    background-color: #F9FAFB;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.875rem;
    border-bottom: 1px solid var(--border-color);
}

td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9375rem;
}

/* Responsive */
@media (max-width: 1024px) {
    .sidebar {
        width: 80px;
        padding: 1rem;
    }
    .sidebar .logo span, .sidebar .nav-link span {
        display: none;
    }
    .main-content {
        margin-left: 80px;
    }
}