:root {
    --bg-color: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --sidebar-bg: #1e293b;
    --primary: #38bdf8;
    --accent: #818cf8;
    --text-main: #f8fafc;
    --text-dim: #94a3b8;
    --glass-border: rgba(255, 255, 255, 0.1);
    --shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    overflow-x: hidden;
}

.glass {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    box-shadow: var(--shadow);
}

/* Sidebar */
.sidebar {
    width: 260px;
    height: 100vh;
    background: var(--sidebar-bg);
    position: fixed;
    left: 0;
    top: 0;
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    z-index: 1000;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 3rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.nav-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.nav-item {
    padding: 0.75rem 1rem;
    border-radius: 10px;
    color: var(--text-dim);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all 0.3s ease;
}

.nav-item:hover, .nav-item.active {
    background: rgba(56, 189, 248, 0.1);
    color: var(--primary);
}

/* Main Content */
.main-content {
    margin-left: 260px;
    padding: 2rem 3rem;
}

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

.title-section h1 {
    font-size: 1.875rem;
    font-weight: 700;
}

.title-section p {
    color: var(--text-dim);
    margin-top: 0.25rem;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.stat-card {
    padding: 1.5rem;
}

.stat-card .label {
    color: var(--text-dim);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.stat-card .value {
    font-size: 1.5rem;
    font-weight: 700;
}

.stat-card .trend {
    font-size: 0.75rem;
    margin-top: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.trend.up { color: #10b981; }
.trend.down { color: #ef4444; }

/* Tables/Lists */
.section-container {
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

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

th {
    text-align: left;
    color: var(--text-dim);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    padding: 1rem;
    border-bottom: 1px solid var(--glass-border);
}

td {
    padding: 1rem;
    font-size: 0.875rem;
}

tr:not(:last-child) td {
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.badge {
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-active { background: rgba(16, 185, 129, 0.1); color: #10b981; }
.badge-disabled { background: rgba(239, 68, 68, 0.1); color: #ef4444; }

/* Buttons */
.btn {
    padding: 0.5rem 1.25rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary);
    color: #000;
}

.btn-primary:hover {
    filter: brightness(1.1);
    box-shadow: 0 0 15px rgba(56, 189, 248, 0.4);
}

/* Form Styles for Login */
.login-container {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at top right, rgba(56, 189, 248, 0.1), transparent),
                radial-gradient(circle at bottom left, rgba(129, 140, 248, 0.1), transparent);
}

.login-card {
    width: 100%;
    max-width: 400px;
    padding: 2.5rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-dim);
}

.form-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: #fff;
    outline: none;
}

.form-group input:focus {
    border-color: var(--primary);
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    width: 100%;
    max-width: 500px;
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

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

.modal-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
}

.close-modal {
    background: none;
    border: none;
    color: var(--text-dim);
    font-size: 1.5rem;
    cursor: pointer;
}