/* Button Components */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--font-size-base);
    font-weight: 500;
    line-height: 1.5;
    text-align: center;
    text-decoration: none;
    white-space: nowrap;
    vertical-align: middle;
    cursor: pointer;
    user-select: none;
    border: 1px solid transparent;
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.btn:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.btn:disabled,
.btn.disabled {
    opacity: 0.65;
    cursor: not-allowed;
    pointer-events: none;
}

.btn.loading {
    pointer-events: none;
}

.btn.loading .button-text {
    opacity: 0;
}

.btn.loading .button-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.button-loading {
    display: none;
}

/* Button Variants */
.btn-primary {
    color: var(--white);
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

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

.btn-primary:active {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(1px);
}

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

.btn-secondary:hover {
    background-color: var(--gray-600);
    border-color: var(--gray-600);
    color: var(--white);
}

.btn-outline {
    color: var(--primary-color);
    background-color: transparent;
    border-color: var(--primary-color);
}

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

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

.btn-success:hover {
    background-color: #059669;
    border-color: #059669;
    color: var(--white);
}

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

.btn-warning:hover {
    background-color: #d97706;
    border-color: #d97706;
    color: var(--white);
}

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

.btn-error:hover {
    background-color: #dc2626;
    border-color: #dc2626;
    color: var(--white);
}

/* Button Sizes */
.btn-small {
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-sm);
}

.btn-large {
    padding: var(--spacing-4) var(--spacing-8);
    font-size: var(--font-size-lg);
}

.btn-block {
    display: block;
    width: 100%;
}

/* Form Components */
.form-group {
    margin-bottom: var(--spacing-6);
    position: relative;
}

.form-group label {
    display: block;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: var(--spacing-2);
    font-size: var(--font-size-sm);
}

.form-group input,
.form-group textarea,
.form-group select {
    display: block;
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--gray-700);
    background-color: var(--white);
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: 0;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-400);
}

.form-group input:invalid,
.form-group textarea:invalid,
.form-group select:invalid {
    border-color: var(--error-color);
}

.form-group.has-error input,
.form-group.has-error textarea,
.form-group.has-error select {
    border-color: var(--error-color);
}

.form-group.has-error label {
    color: var(--error-color);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-group select {
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
    background-position: right var(--spacing-3) center;
    background-repeat: no-repeat;
    background-size: 1rem;
    padding-right: var(--spacing-10);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4);
}

.error-message {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--error-color);
    margin-top: var(--spacing-2);
    min-height: 1.25rem;
}

.success-message {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--success-color);
    margin-top: var(--spacing-2);
}

/* Checkbox and Radio Components */
.checkbox-group {
    margin-bottom: var(--spacing-6);
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
    cursor: pointer;
    font-size: var(--font-size-sm);
    line-height: 1.6;
    position: relative;
}

.checkbox-label input[type="checkbox"],
.checkbox-label input[type="radio"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    width: 0;
    height: 0;
    z-index: -1;
}

.checkmark {
    position: relative;
    height: 20px;
    width: 20px;
    background-color: var(--white);
    border: 2px solid var(--gray-300);
    border-radius: 4px;
    transition: all var(--transition-fast);
    flex-shrink: 0;
    margin-top: 2px;
    display: inline-block;
}

.checkbox-label:hover input ~ .checkmark {
    border-color: var(--primary-color);
}

.checkbox-label input:checked ~ .checkmark {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
}

.checkbox-label input:checked ~ .checkmark:after {
    display: block;
}

.checkbox-label .checkmark:after {
    left: 6px;
    top: 2px;
    width: 6px;
    height: 10px;
    border: solid var(--white);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

/* Fallback for browsers that don't support custom checkboxes */
.checkbox-label input[type="checkbox"]:not(:checked) + .checkmark {
    background-color: var(--white);
    border: 2px solid var(--gray-300);
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    background-color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

/* Modern checkbox styling for better browser support */
.checkbox-label input[type="checkbox"] {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    position: static;
    opacity: 1;
    width: 20px;
    height: 20px;
    margin: 0;
    margin-right: var(--spacing-3);
    background-color: var(--white);
    border: 2px solid var(--gray-300);
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
    margin-top: 2px;
}

.checkbox-label input[type="checkbox"]:hover {
    border-color: var(--primary-color);
}

.checkbox-label input[type="checkbox"]:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 16 16' fill='white' xmlns='http://www.w3.org/2000/svg'%3e%3cpath d='m13.854 3.646-7.5 7.5a.5.5 0 0 1-.708 0l-3.5-3.5a.5.5 0 1 1 .708-.708L6 10.293l7.146-7.147a.5.5 0 0 1 .708.708z'/%3e%3c/svg%3e");
    background-size: 100% 100%;
    background-position: center;
    background-repeat: no-repeat;
}

.checkbox-label input[type="checkbox"]:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Hide custom checkmark when using modern approach */
.checkbox-label .checkmark {
    display: none;
}

/* Toggle Switch */
.toggle-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.toggle-label input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: relative;
    width: 50px;
    height: 24px;
    background-color: var(--gray-300);
    border-radius: 12px;
    transition: background-color var(--transition-fast);
}

.toggle-slider:before {
    content: "";
    position: absolute;
    height: 18px;
    width: 18px;
    left: 3px;
    top: 3px;
    background-color: var(--white);
    border-radius: 50%;
    transition: transform var(--transition-fast);
}

.toggle-label input:checked ~ .toggle-slider {
    background-color: var(--primary-color);
}

.toggle-label input:checked ~ .toggle-slider:before {
    transform: translateX(26px);
}

.toggle-label input:disabled ~ .toggle-slider {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Modal Components */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    z-index: var(--z-index-modal);
    display: none;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease-out;
}

.modal-content {
    position: relative;
    background-color: var(--white);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-xl);
    margin: var(--spacing-6);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp 0.3s ease-out;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-6);
    border-bottom: 1px solid var(--gray-200);
}

.modal-header h3 {
    margin: 0;
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--gray-900);
}

.close-btn {
    background: none;
    border: none;
    font-size: var(--font-size-2xl);
    color: var(--gray-400);
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
}

.close-btn:hover {
    color: var(--gray-600);
    background-color: var(--gray-100);
}

.modal-body {
    padding: var(--spacing-6);
}

.modal-footer {
    padding: var(--spacing-6);
    border-top: 1px solid var(--gray-200);
    display: flex;
    gap: var(--spacing-4);
    justify-content: flex-end;
}

/* Cookie Banner Components */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--white);
    border-top: 1px solid var(--gray-200);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-6);
    z-index: var(--z-index-fixed);
    transform: translateY(100%);
    transition: transform var(--transition-normal);
}

.cookie-banner.show {
    transform: translateY(0);
}

.cookie-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-6);
    max-width: 1200px;
    margin: 0 auto;
}

.cookie-text h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-2);
    color: var(--gray-900);
}

.cookie-text p {
    color: var(--gray-600);
    margin-bottom: 0;
    font-size: var(--font-size-sm);
}

.cookie-buttons {
    display: flex;
    gap: var(--spacing-3);
    flex-shrink: 0;
}

.cookie-modal {
    position: fixed;
    top: 0;
    left: 0;
    z-index: var(--z-index-modal);
    display: none;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.cookie-modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease-out;
}

.cookie-modal-content {
    position: relative;
    background-color: var(--white);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-xl);
    margin: var(--spacing-6);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp 0.3s ease-out;
}

.cookie-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-6);
    border-bottom: 1px solid var(--gray-200);
}

.cookie-modal-header h3 {
    margin: 0;
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--gray-900);
}

.cookie-modal-body {
    padding: var(--spacing-6);
}

.cookie-modal-footer {
    padding: var(--spacing-6);
    border-top: 1px solid var(--gray-200);
    text-align: right;
}

.cookie-category {
    margin-bottom: var(--spacing-6);
    padding: var(--spacing-4);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-lg);
}

.cookie-category:last-child {
    margin-bottom: 0;
}

.cookie-toggle {
    margin-bottom: var(--spacing-3);
}

.cookie-category p {
    color: var(--gray-600);
    font-size: var(--font-size-sm);
    margin-bottom: 0;
}

/* Alert Components */
.alert {
    padding: var(--spacing-4) var(--spacing-6);
    margin-bottom: var(--spacing-6);
    border: 1px solid transparent;
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
}

.alert-success {
    color: #065f46;
    background-color: #d1fae5;
    border-color: #a7f3d0;
}

.alert-warning {
    color: #92400e;
    background-color: #fef3c7;
    border-color: #fde68a;
}

.alert-error {
    color: #991b1b;
    background-color: #fee2e2;
    border-color: #fecaca;
}

.alert-info {
    color: #1e40af;
    background-color: #dbeafe;
    border-color: #bfdbfe;
}

/* Loading Components */
.loading-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--gray-300);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

.loading-spinner.large {
    width: 32px;
    height: 32px;
    border-width: 3px;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        transform: translateY(30px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.d-none {
    display: none;
}

.d-block {
    display: block;
}

.d-flex {
    display: flex;
}

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

.align-items-center {
    align-items: center;
}

.justify-content-center {
    justify-content: center;
}

.gap-2 {
    gap: var(--spacing-2);
}

.gap-4 {
    gap: var(--spacing-4);
}

.mb-0 {
    margin-bottom: 0;
}

.mb-2 {
    margin-bottom: var(--spacing-2);
}

.mb-4 {
    margin-bottom: var(--spacing-4);
}

.mt-4 {
    margin-top: var(--spacing-4);
}

.p-4 {
    padding: var(--spacing-4);
}

.px-4 {
    padding-left: var(--spacing-4);
    padding-right: var(--spacing-4);
}

.py-4 {
    padding-top: var(--spacing-4);
    padding-bottom: var(--spacing-4);
}

.text-primary {
    color: var(--primary-color);
}

.text-success {
    color: var(--success-color);
}

.text-warning {
    color: var(--warning-color);
}

.text-error {
    color: var(--error-color);
}

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

.bg-light {
    background-color: var(--gray-50);
}

.border-radius {
    border-radius: var(--border-radius);
}

.shadow {
    box-shadow: var(--shadow);
}

.transition {
    transition: all var(--transition-fast);
}