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

body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.container {
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    width: 100%;
    max-width: 1200px;
    overflow: hidden;
}

.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 30px;
    text-align: center;
}

.navbar {
    background: #f8f9fa;
    padding: 15px;
    border-bottom: 1px solid #dee2e6;
}

.navbar ul {
    display: flex;
    list-style: none;
    gap: 20px;
}

.navbar a {
    color: #495057;
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 5px;
    transition: all 0.3s;
}

.navbar a:hover, .navbar a.active {
    background: #667eea;
    color: white;
}

.main-content {
    padding: 40px;
}

.form-container {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #495057;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    font-size: 16px;
    transition: all 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.btn {
    display: inline-block;
    padding: 14px 30px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
    background: linear-gradient(135deg, #6c757d 0%, #495057 100%);
}

.table-container {
    overflow-x: auto;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

table {
    width: 100%;
    border-collapse: collapse;
}

table th, table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #dee2e6;
}

table th {
    background: #f8f9fa;
    font-weight: 600;
    color: #495057;
}

table tr:hover {
    background: #f8f9fa;
}

.alert {
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 20px;
}

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

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

.payment-methods {
    display: flex;
    gap: 20px;
    margin: 30px 0;
}

.payment-method {
    flex: 1;
    padding: 20px;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s;
}

.payment-method:hover {
    border-color: #667eea;
}

.payment-method.selected {
    border-color: #667eea;
    background: rgba(102, 126, 234, 0.1);
}

.package-card {
    border: 2px solid #e9ecef;
    border-radius: 15px;
    padding: 30px;
    margin: 20px 0;
    transition: all 0.3s;
}

.package-card:hover {
    border-color: #667eea;
    transform: translateY(-5px);
}

.login-info {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 10px;
    margin: 20px 0;
}