:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    --text-color: #2c3e50;
    --sidebar-width: 250px;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f0f2f5;
    overflow-x: hidden;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: fadeIn 0.6s ease-out forwards;
}

/* Glassmorphism */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    border-radius: 15px;
}

/* Login Page */
.login-body {
    background: var(--primary-gradient);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 2rem;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.2);
}

.form-control {
    border-radius: 10px;
    padding: 12px;
    border: 1px solid #e1e1e1;
    transition: all 0.3s ease;
}

.form-control:focus {
    box-shadow: 0 0 0 3px rgba(118, 75, 162, 0.2);
    border-color: #764ba2;
}

.btn-gradient {
    background: var(--primary-gradient);
    border: none;
    color: white;
    padding: 12px;
    border-radius: 10px;
    font-weight: 600;
    transition: transform 0.2s;
}

.btn-gradient:hover {
    transform: translateY(-2px);
    color: white;
    box-shadow: 0 5px 15px rgba(118, 75, 162, 0.4);
}

/* Dashboard Layout */
.wrapper {
    display: flex;
    width: 100%;
    align-items: stretch;
}

#sidebar {
    min-width: var(--sidebar-width);
    max-width: var(--sidebar-width);
    background: var(--secondary-gradient);
    color: #fff;
    transition: all 0.3s;
    min-height: 100vh;
    z-index: 999;
}

#sidebar.active {
    margin-left: calc(var(--sidebar-width) * -1);
}

#sidebar .sidebar-header {
    padding: 20px;
    background: rgba(0,0,0,0.1);
}

#sidebar ul.components {
    padding: 20px 0;
}

#sidebar ul li a {
    padding: 15px 20px;
    font-size: 1.1em;
    display: block;
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: all 0.3s;
    border-left: 4px solid transparent;
}

#sidebar ul li a:hover, #sidebar ul li.active > a {
    color: #fff;
    background: rgba(255,255,255,0.1);
    border-left-color: #fff;
    padding-left: 25px;
}

#sidebar ul li a i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
}

/* Content Area */
#content {
    width: 100%;
    min-height: 100vh;
    transition: all 0.3s;
    background: #f8f9fa;
}

/* Navbar */
.navbar-custom {
    background: #fff;
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
    padding: 15px 30px;
}

.nav-icon-btn {
    position: relative;
    padding: 8px;
    color: #6c757d;
    transition: color 0.3s;
}

.nav-icon-btn:hover {
    color: #764ba2;
}

.notification-badge {
    position: absolute;
    top: 0;
    right: 0;
    width: 8px;
    height: 8px;
    background: #ff4757;
    border-radius: 50%;
    border: 2px solid #fff;
}

.user-dropdown img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid #764ba2;
}

/* Cards */
.stat-card {
    background: #fff;
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    transition: transform 0.3s;
    border: none;
    height: 100%;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 15px;
}

.bg-gradient-1 { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; }
.bg-gradient-2 { background: linear-gradient(135deg, #ff9a9e 0%, #fecfef 99%, #fecfef 100%); color: white; }
.bg-gradient-3 { background: linear-gradient(135deg, #84fab0 0%, #8fd3f4 100%); color: white; }
.bg-gradient-4 { background: linear-gradient(135deg, #a18cd1 0%, #fbc2eb 100%); color: white; }

/* Responsive */
@media (max-width: 768px) {
    #sidebar {
        margin-left: calc(var(--sidebar-width) * -1);
    }
    #sidebar.active {
        margin-left: 0;
    }
    .navbar-custom {
        padding: 15px;
    }
}