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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    background-image: url('/images/background-hyundai.jpg');
    background-size: cover;
    background-attachment: fixed;
    background-position: center;
    min-height: 100vh;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.3);
    z-index: -1;
    pointer-events: none;
}

/* ============= Login Page Styles ============= */
body.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
}

.login-container {
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    width: 100%;
    max-width: 400px;
}

.login-container h2 {
    color: #333;
    margin-bottom: 30px;
    text-align: center;
    font-size: 28px;
}

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

label {
    display: block;
    margin-bottom: 8px;
    color: #555;
    font-weight: 500;
    font-size: 14px;
}

input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
    transition: border-color 0.3s;
    font-family: inherit;
}

input[type="text"]:focus,
input[type="password"]:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 5px rgba(102, 126, 234, 0.3);
}

button {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s;
    margin-top: 10px;
}

button:hover {
    transform: translateY(-2px);
}

button:active {
    transform: translateY(0);
}

.alert {
    padding: 12px 15px;
    margin-bottom: 20px;
    border-radius: 5px;
    font-size: 14px;
}

.alert-danger {
    background-color: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
}

.alert-success {
    background-color: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
}

.demo-info {
    margin-top: 25px;
    padding: 15px;
    background-color: #f5f5f5;
    border-left: 4px solid #667eea;
    border-radius: 5px;
    font-size: 13px;
}

.demo-info strong {
    display: block;
    margin-bottom: 8px;
    color: #333;
}

.demo-info code {
    background-color: #e8e8e8;
    padding: 2px 6px;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
    color: #555;
}

/* ============= Error Page Styles ============= */
body.error-page {
    display: flex;
    justify-content: center;
    align-items: center;
}

.error-container {
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    width: 100%;
    max-width: 500px;
    text-align: center;
}

.error-container h1 {
    color: #d32f2f;
    margin-bottom: 20px;
}

.error-container p {
    color: #555;
    margin-bottom: 30px;
    line-height: 1.6;
}

.error-container a {
    display: inline-block;
    padding: 12px 30px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: transform 0.2s;
}

.error-container a:hover {
    transform: translateY(-2px);
}

/* ============= Home Page Styles ============= */
body.home-page {
    padding: 20px;
}

.navbar {
    background: white;
    padding: 15px 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.navbar h1 {
    color: #667eea;
    font-size: 24px;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 20px;
}

.user-info span {
    color: #555;
    font-weight: 500;
}

.logout-btn {
    padding: 8px 20px;
    background: #dc3545;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
    font-weight: 500;
    transition: background 0.3s;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.welcome-card {
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    margin-bottom: 30px;
}

.welcome-card h2 {
    color: #333;
    margin-bottom: 15px;
}

.welcome-card p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 10px;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.info-card {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.info-card h3 {
    color: #667eea;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.info-card ul {
    list-style: none;
    color: #555;
}

.info-card li {
    padding: 8px 0;
    border-bottom: 1px solid #eee;
}

.info-card li:last-child {
    border-bottom: none;
}

.badge {
    display: inline-block;
    padding: 4px 12px;
    background: #667eea;
    color: white;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.success-icon {
    color: #28a745;
    font-size: 20px;
}