:root {
    --primary-color: #6f42c1; /* Purple */
    --secondary-color: #8a2be2; /* BlueViolet */
    --dark-bg: #1a1a1a;
    --darker-bg: #121212;
    --light-text: #ffffff;
    --gray-text: #b3b3b3;
    --sidebar-width: 280px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: #f8f9fa;
    color: #333;
}

/* Sidebar Styling */
.sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 100;
    width: var(--sidebar-width);
    padding: 20px 0;
    background-color: var(--dark-bg);
    color: var(--light-text);
    box-shadow: 4px 0 10px rgba(0,0,0,0.1);
}

.sidebar .nav-link {
    color: var(--gray-text);
    padding: 12px 25px;
    font-weight: 500;
    border-radius: 0 50px 50px 0;
    margin-right: 15px;
    margin-bottom: 5px;
    transition: all 0.3s;
}

.sidebar .nav-link:hover {
    color: var(--light-text);
    background-color: rgba(255,255,255,0.05);
}

.sidebar .nav-link.active {
    color: var(--light-text);
    background-color: var(--primary-color);
}

.sidebar-brand {
    padding: 10px 25px 30px;
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 2px;
    color: var(--light-text);
    text-transform: uppercase;
}

.sidebar-brand span {
    color: var(--primary-color);
}

/* Main Content Styling */
.main-content {
    margin-left: var(--sidebar-width);
    padding: 30px;
}

/* Card Styling */
.card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    margin-bottom: 25px;
}

.card-header {
    background-color: transparent;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    padding: 20px;
    font-weight: 700;
}

/* Dashboard Stats */
.stat-card {
    padding: 25px;
    border-radius: 15px;
    color: white;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    margin-bottom: 20px;
}

.stat-card h3 {
    font-size: 2.5rem;
    font-weight: 800;
    margin: 10px 0;
}

.stat-card p {
    opacity: 0.8;
    margin: 0;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
}

/* Buttons */
.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    padding: 10px 25px;
    border-radius: 8px;
    font-weight: 600;
}

.btn-primary:hover {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
}

.btn-dark {
    background-color: var(--dark-bg);
    border-color: var(--dark-bg);
}

/* Navbar (Top) */
.top-navbar {
    margin-left: var(--sidebar-width);
    background-color: white;
    padding: 15px 30px;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

/* Tables */
.table {
    border-radius: 10px;
    overflow: hidden;
}

/* Force images to stay inside containers */
img {
    max-width: 100%;
    height: auto;
}

.table thead th {
    background-color: #f8f9fa;
    border-top: none;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 1px;
    color: #888;
}

/* Auth Pages */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--darker-bg);
}

.auth-card {
    width: 400px;
    background-color: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

.auth-brand {
    text-align: center;
    margin-bottom: 30px;
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: 2px;
}

/* Responsive */
@media (max-width: 992px) {
    .sidebar {
        width: 0;
        display: none;
    }
    .main-content {
        margin-left: 0;
    }
    .top-navbar {
        margin-left: 0;
    }
}