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

:root {
    --primary-color: #e91e63;
    --secondary-color: #f8bbd9;
    --background: #ffffff;
    --surface: #f8f9fa;
    --text-primary: #2c3e50;
    --text-secondary: #6c757d;
    --border-color: #dee2e6;
    --success: #28a745;
    --warning: #ffc107;
    --danger: #dc3545;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* High Contrast Theme */
.high-contrast {
    --primary-color: #000000;
    --secondary-color: #ffffff;
    --background: #ffffff;
    --surface: #f0f0f0;
    --text-primary: #000000;
    --text-secondary: #000000;
    --border-color: #000000;
    --success: #000000;
    --warning: #000000;
    --danger: #000000;
}

/* Color Blind Friendly Theme */
.color-blind-friendly {
    --primary-color: #0066cc;
    --secondary-color: #99ccff;
    --success: #0066cc;
    --warning: #ff6600;
    --danger: #cc0000;
}

/* Delete Account Section */
.delete-section {
    background: linear-gradient(135deg, #ffebee, #ffcdd2);
    border: 2px solid var(--danger);
    border-radius: 15px;
    padding: 30px;
    margin-top: 40px;
    text-align: center;
    box-shadow: var(--shadow);
}

.delete-title {
    color: var(--danger);
    font-size: 1.5rem;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.delete-warning {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    border-radius: 8px;
    padding: 15px;
    margin: 20px 0;
    color: #856404;
}

.confirmation-step {
    margin: 20px 0;
    padding: 20px;
    background: white;
    border-radius: 10px;
    border: 2px dashed var(--danger);
}

.confirmation-step.completed {
    background: #d4edda;
    border-color: var(--success);
}

.delete-btn {
    background: var(--danger);
    color: white;
    padding: 15px 30px;
    font-size: 1.1rem;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    margin: 10px;
}

.delete-btn:hover:not(:disabled) {
    background: #c82333;
    transform: translateY(-2px);
}

.delete-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.cancel-btn {
    background: var(--text-secondary);
    color: white;
    padding: 15px 30px;
    font-size: 1.1rem;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    margin: 10px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    background: var(--background);
    color: var(--text-primary);
    transition: var(--transition);
    font-size: 16px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
}

.header {
    text-align: center;
    margin-bottom: 40px;
    padding: 20px 0;
    border-bottom: 2px solid var(--border-color);
}

.logo {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 10px;
    text-decoration: none;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Vertical Layout */
.settings-container {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-bottom: 40px;
}

.settings-card {
    background: var(--surface);
    border-radius: 12px;
    padding: 30px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    width: 100%;
}

.settings-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.card-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

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

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

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background: var(--background);
    color: var(--text-primary);
    font-size: 16px;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(233, 30, 99, 0.1);
}

.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-top: 10px;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    padding: 8px 12px;
    border-radius: 6px;
    transition: var(--transition);
}

.checkbox-item:hover {
    background: var(--secondary-color);
}

.checkbox-item input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.range-input {
    display: flex;
    gap: 15px;
    align-items: center;
    margin-top: 10px;
}

.range-input input {
    flex: 1;
    padding: 8px 12px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    text-align: center;
    font-size: 16px;
}

.blocked-users {
    max-height: 200px;
    overflow-y: auto;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 15px;
    background: var(--background);
}

.blocked-user-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

.blocked-user-item:last-child {
    border-bottom: none;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

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

.btn-primary:hover {
    background: #c2185b;
    transform: translateY(-1px);
}

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

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

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

.save-section {
    text-align: center;
    padding: 30px;
    background: var(--surface);
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.save-btn {
    background: var(--success);
    color: white;
    padding: 15px 40px;
    font-size: 1.1rem;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.save-btn:hover {
    background: #218838;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(40, 167, 69, 0.3);
}

/* Success Popup */
.success-popup {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    background: white;
    border: 3px solid var(--success);
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    z-index: 2000;
    text-align: center;
    min-width: 300px;
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.success-popup.show {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.success-popup h3 {
    color: var(--success);
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.success-popup .checkmark {
    font-size: 3rem;
    color: var(--success);
    margin-bottom: 15px;
    display: block;
}

.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.popup-overlay.show {
    opacity: 1;
    visibility: visible;
}

/* Accessibility Panel */
.accessibility-panel {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
}

.accessibility-toggle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    border: none;
    cursor: pointer;
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.accessibility-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 20px rgba(233, 30, 99, 0.4);
}

.accessibility-menu {
    position: absolute;
    bottom: 70px;
    right: 0;
    background: var(--background);
    border-radius: 12px;
    padding: 20px;
    box-shadow: var(--shadow);
    border: 2px solid var(--border-color);
    min-width: 250px;
    transform: translateY(10px);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.accessibility-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.accessibility-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

.accessibility-item:last-child {
    border-bottom: none;
}

.toggle-switch {
    position: relative;
    width: 50px;
    height: 24px;
    background: #ccc;
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition);
}

.toggle-switch.active {
    background: var(--primary-color);
}

.toggle-switch::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    transition: var(--transition);
}

.toggle-switch.active::after {
    left: 28px;
}

.zoom-controls {
    display: flex;
    gap: 10px;
    align-items: center;
}

.zoom-btn {
    width: 30px;
    height: 30px;
    border: 1px solid var(--border-color);
    background: var(--background);
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Focus indicators for accessibility */
*:focus-visible {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}

/* Screen reader announcements */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Responsive design */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    .settings-card {
        padding: 20px;
    }
}

/* Reduced motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    * {
        transition: none !important;
    }
}

/* Toast Notification */
.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--success);
    color: white;
    padding: 15px 25px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    z-index: 3000;
    transform: translateX(400px);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 10px;
}

.toast.show {
    transform: translateX(0);
}

.toast.error {
    background: var(--danger);
}