/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #0175C2;
    --primary-dark: #01579B;
    --danger-color: #DC3545;
    --danger-dark: #C82333;
    --success-color: #28A745;
    --text-color: #333333;
    --text-light: #666666;
    --border-color: #E0E0E0;
    --bg-color: #FFFFFF;
    --bg-light: #F8F9FA;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.15);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-light);
    padding: 20px;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    background-color: var(--bg-color);
    border-radius: 8px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

/* Header */
header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 40px 30px;
    text-align: center;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    font-weight: 600;
}

.subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    font-weight: 300;
}

/* Navigation */
.nav-links {
    display: flex;
    gap: 20px;
    justify-content: center;
    padding: 30px;
    background-color: var(--bg-light);
}

.nav-link {
    display: inline-block;
    padding: 12px 24px;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.nav-link:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

/* Content */
.content {
    padding: 40px 30px;
}

.last-updated {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

section {
    margin-bottom: 40px;
}

section h2 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--border-color);
}

section h3 {
    color: var(--text-color);
    font-size: 1.3rem;
    margin-top: 20px;
    margin-bottom: 10px;
}

section p {
    margin-bottom: 15px;
    color: var(--text-color);
    line-height: 1.8;
}

section ul {
    margin-left: 20px;
    margin-bottom: 20px;
}

section li {
    margin-bottom: 10px;
    line-height: 1.7;
}

section a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

section a:hover {
    text-decoration: underline;
}

/* Warning Box */
.warning-box {
    background-color: #FFF3CD;
    border: 2px solid #FFC107;
    border-radius: 8px;
    padding: 25px;
    margin-bottom: 30px;
}

.warning-box h2 {
    color: #856404;
    font-size: 1.5rem;
    margin-bottom: 15px;
    border: none;
    padding: 0;
}

.warning-box p {
    color: #856404;
    margin-bottom: 10px;
}

.warning-box ul {
    margin-left: 20px;
    margin-top: 10px;
    margin-bottom: 15px;
}

.warning-box li {
    color: #856404;
    margin-bottom: 8px;
}

/* Form Styles */
.delete-form {
    margin-top: 30px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
    font-size: 1rem;
}

.form-group input[type="email"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.form-group input[type="email"]:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-help {
    display: block;
    margin-top: 6px;
    font-size: 0.875rem;
    color: var(--text-light);
}

.checkbox-group {
    margin-top: 20px;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    cursor: pointer;
    font-weight: normal;
}

.checkbox-label input[type="checkbox"] {
    margin-top: 4px;
    width: 18px;
    height: 18px;
    cursor: pointer;
    flex-shrink: 0;
}

.checkbox-label span {
    line-height: 1.6;
}

/* Buttons */
.form-actions {
    display: flex;
    gap: 15px;
    margin-top: 30px;
    flex-wrap: wrap;
}

.btn {
    padding: 14px 28px;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
    text-align: center;
}

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

.btn-danger:hover {
    background-color: var(--danger-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-secondary {
    background-color: var(--text-light);
    color: white;
}

.btn-secondary:hover {
    background-color: #555;
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Messages */
.success-message,
.error-message {
    margin-top: 30px;
    padding: 20px;
    border-radius: 8px;
    animation: slideIn 0.3s ease;
}

.success-message {
    background-color: #D4EDDA;
    border: 2px solid var(--success-color);
    color: #155724;
}

.error-message {
    background-color: #F8D7DA;
    border: 2px solid var(--danger-color);
    color: #721C24;
}

.success-message h3,
.error-message h3 {
    margin-bottom: 10px;
    font-size: 1.2rem;
}

/* Footer */
footer {
    padding: 30px;
    background-color: var(--bg-light);
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.back-link {
    display: inline-block;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    margin: 0 15px;
    transition: color 0.3s ease;
}

.back-link:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* Animations */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }

    header h1 {
        font-size: 2rem;
    }

    .content {
        padding: 25px 20px;
    }

    .nav-links {
        flex-direction: column;
        padding: 20px;
    }

    .nav-link {
        width: 100%;
        text-align: center;
    }

    .form-actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    section h2 {
        font-size: 1.5rem;
    }

    section h3 {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    header {
        padding: 30px 20px;
    }

    header h1 {
        font-size: 1.75rem;
    }

    .content {
        padding: 20px 15px;
    }
}