/* assets/style.css */

:root {
    --primary-color: #4facfe;
    --secondary-color: #00f2fe;
    --accent-color: #f5576c;
    --accent-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --bg-color: #f4f7f6;
    --sidebar-bg: #2b32b2;
    --sidebar-gradient: linear-gradient(180deg, #141e30 0%, #243b55 100%);
    --text-main: #333;
    --text-muted: #777;
    --white: #ffffff;
    --border-color: #e9ecef;
    --danger: #dc3545;
    --success: #28a745;
    --warning: #ffc107;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    display: flex;
    min-height: 100vh;
}

/* Sidebar Styling */
.sidebar {
    width: 260px;
    background: var(--sidebar-gradient);
    color: var(--white);
    display: flex;
    flex-direction: column;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    height: 100vh;
    z-index: 100;
}

.sidebar-header {
    padding: 25px 20px;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 1px;
    background: -webkit-linear-gradient(#fff, #aaa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    list-style: none;
    padding: 15px 0;
    flex: 1;
}

.nav-links li {
    padding: 5px 20px;
}

.nav-links a {
    display: flex;
    align-items: center;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    padding: 12px 15px;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.nav-links a i {
    margin-right: 15px;
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--white);
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(5px);
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-logout {
    display: block;
    width: 100%;
    padding: 10px;
    text-align: center;
    background: rgba(220, 53, 69, 0.2);
    color: #ff6b6b;
    border-radius: 6px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-logout:hover {
    background: var(--danger);
    color: var(--white);
}

/* Main Content Area */
.main-content {
    flex: 1;
    margin-left: 260px;
    padding: 30px 40px;
    overflow-y: auto;
}

.top-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.top-header h1 {
    font-size: 1.8rem;
    color: var(--text-main);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
}

/* Cards & Containers */
.card {
    background: var(--white);
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    padding: 25px;
    margin-bottom: 30px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--white);
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: center;
    gap: 20px;
    transition: transform 0.3s ease;
}

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

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: white;
}

.stat-icon.primary { background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%); }
.stat-icon.success { background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%); }
.stat-icon.warning { background: linear-gradient(135deg, #f2994a 0%, #f2c94c 100%); }
.stat-icon.danger { background: linear-gradient(135deg, #ee0979 0%, #ff6a00 100%); }

.stat-details h3 {
    font-size: 1.8rem;
    margin-bottom: 5px;
}

.stat-details p {
    color: var(--text-muted);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Forms */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    color: #444;
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #fdfdfd;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 172, 254, 0.1);
    background: var(--white);
}

/* Buttons */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: var(--primary-color);
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    color: var(--white);
    box-shadow: 0 4px 10px rgba(79, 172, 254, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(79, 172, 254, 0.4);
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background: #5a6268;
}

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

.btn-danger:hover {
    background: #c82333;
}

/* Tables */
.table-responsive {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}

thead th {
    background: #f8f9fa;
    color: #495057;
    padding: 15px;
    text-align: left;
    font-weight: 600;
    border-bottom: 2px solid var(--border-color);
    white-space: nowrap;
}

tbody td {
    padding: 15px;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

tbody tr:hover {
    background-color: #fcfcfc;
}

/* Badges */
.badge {
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.badge-success { background: #d4edda; color: #155724; }
.badge-warning { background: #fff3cd; color: #856404; }
.badge-danger { background: #f8d7da; color: #721c24; }
.badge-secondary { background: #e2e3e5; color: #383d41; }
.badge-primary { background: #cce5ff; color: #004085; }

/* Alerts */
.alert {
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 25px;
    font-weight: 500;
}
.alert-success { background: #d4edda; color: #155724; border-left: 4px solid #28a745; }
.alert-danger { background: #f8d7da; color: #721c24; border-left: 4px solid #dc3545; }
.alert-info { background: #d1ecf1; color: #0c5460; border-left: 4px solid #17a2b8; }

/* Login Page specific */
.login-container {
    width: 100%;
    max-width: 400px;
    margin: auto;
    background: var(--white);
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h1 {
    font-size: 2rem;
    color: #333;
    margin-bottom: 10px;
}

.login-header p {
    color: var(--text-muted);
}

.login-bg {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}