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

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #8b5cf6;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --dark: #1e293b;
    --light: #f8fafc;
    --gray: #64748b;
    --border-radius: 12px;
    --box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.login-container {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    width: 100%;
    max-width: 420px;
    padding: 40px;
    animation: fadeIn 0.5s ease;
}

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

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

.login-header h1 {
    color: var(--dark);
    font-size: 28px;
    margin-bottom: 10px;
    font-weight: 700;
}

.login-header p {
    color: var(--gray);
    font-size: 14px;
}

.login-header .logo {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 50%;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 32px;
    font-weight: bold;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--dark);
    font-weight: 600;
    font-size: 14px;
}

.form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 15px;
    transition: var(--transition);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group input.error {
    border-color: var(--danger);
}

.error-message {
    color: var(--danger);
    font-size: 13px;
    margin-top: 5px;
    display: none;
}

.btn {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 10px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px -5px rgba(99, 102, 241, 0.4);
}

.btn:active {
    transform: translateY(0);
}

.btn-secondary {
    background: #e2e8f0;
    color: var(--dark);
}

.btn-secondary:hover {
    background: #cbd5e1;
}

.dashboard {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    animation: fadeIn 0.5s ease;
}

.dashboard-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    padding: 30px 40px;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.dashboard-header h1 {
    font-size: 32px;
    margin-bottom: 10px;
}

.dashboard-header p {
    opacity: 0.9;
    font-size: 16px;
}

.dashboard-body {
    padding: 40px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: #f8fafc;
    padding: 25px;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary);
    transition: var(--transition);
}

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

.stat-card h3 {
    color: var(--gray);
    font-size: 14px;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-card .value {
    font-size: 32px;
    font-weight: 700;
    color: var(--dark);
}

.stat-card.success { border-left-color: var(--success); }
.stat-card.warning { border-left-color: var(--warning); }
.stat-card.danger { border-left-color: var(--danger); }

.user-info {
    display: flex;
    align-items: center;
    gap: 15px;
    margin: 20px 0;
    padding: 15px;
    background: #f1f5f9;
    border-radius: 8px;
}

.user-info .avatar {
    width: 50px;
    height: 50px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 20px;
}

.quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 15px;
    margin-top: 30px;
}

.action-btn {
    padding: 20px;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border: 2px solid #bae6fd;
    border-radius: var(--border-radius);
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    color: var(--dark);
    font-weight: 600;
}

.action-btn:hover {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    transform: translateY(-3px);
    box-shadow: var(--box-shadow);
}

.action-btn i {
    font-size: 28px;
    margin-bottom: 8px;
    display: block;
}

.footer {
    text-align: center;
    padding: 20px;
    color: var(--gray);
    font-size: 14px;
    border-top: 1px solid #e2e8f0;
    margin-top: 30px;
}

@media (max-width: 768px) {
    .login-container {
        padding: 30px 20px;
    }
    
    .dashboard-header {
        padding: 20px;
    }
    
    .dashboard-body {
        padding: 20px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}