/**
 * Cascading Select Component Styling
 * Custom styling for parent-child dropdown relationships
 * Matches Romb.bg design system
 */

/* ============================================
   Base Select Styling
   ============================================ */

.cascading-select-wrapper {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.cascading-select-group {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.cascading-select-label {
    font-size: 0.875rem;
    font-weight: var(--font-semibold, 600);
    color: var(--romb-dark-gray, #484848);
    margin-bottom: 0.25rem;
}

.cascading-select-label .required {
    color: var(--romb-primary, #FF385C);
    margin-left: 0.25rem;
}

/* Select Element */
.cascading-select {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 0.9375rem;
    color: var(--romb-black, #222222);
    background: var(--romb-white, #FFFFFF);
    border: 1px solid var(--romb-light-gray, #DDDDDD);
    border-radius: var(--radius-md, 12px);
    transition: all 0.2s ease;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23484848' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
    cursor: pointer;
}

.cascading-select:hover {
    border-color: var(--romb-dark-gray, #484848);
}

.cascading-select:focus {
    outline: none;
    border-color: var(--romb-primary, #FF385C);
    box-shadow: 0 0 0 3px rgba(255, 56, 92, 0.1);
}

.cascading-select:disabled {
    background-color: var(--romb-bg-gray, #F7F7F7);
    color: var(--romb-gray, #767676);
    cursor: not-allowed;
    opacity: 0.6;
}

.cascading-select.disabled {
    background-color: var(--romb-bg-gray, #F7F7F7);
    color: var(--romb-gray, #767676);
    cursor: not-allowed;
}

/* Loading State */
.cascading-select.loading {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 20 20'%3E%3Cpath fill='%23FF385C' d='M10 3v3M10 14v3M3 10h3M14 10h3' stroke='%23FF385C' stroke-width='2' stroke-linecap='round'/%3E%3CanimateTransform attributeName='transform' type='rotate' from='0 10 10' to='360 10 10' dur='1s' repeatCount='indefinite'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 20px 20px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from {
        background-position: right 1rem center;
    }
    to {
        background-position: right 1rem center;
    }
}

/* Error State */
.cascading-select.error {
    border-color: var(--romb-primary, #FF385C);
}

.cascading-select-error {
    font-size: 0.8125rem;
    color: var(--romb-primary, #FF385C);
    margin-top: 0.25rem;
    display: none;
}

.cascading-select-group.has-error .cascading-select-error {
    display: block;
}

/* Help Text */
.cascading-select-help {
    font-size: 0.8125rem;
    color: var(--romb-gray, #767676);
    margin-top: 0.25rem;
}

/* ============================================
   Horizontal Layout (Side by Side)
   ============================================ */

.cascading-select-wrapper.horizontal {
    flex-direction: row;
    gap: 1rem;
}

.cascading-select-wrapper.horizontal .cascading-select-group {
    flex: 1;
}

@media (max-width: 767px) {
    .cascading-select-wrapper.horizontal {
        flex-direction: column;
    }
}

/* ============================================
   Compact Layout
   ============================================ */

.cascading-select-wrapper.compact {
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.cascading-select-wrapper.compact .cascading-select {
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
}

.cascading-select-wrapper.compact .cascading-select-label {
    font-size: 0.8125rem;
}

/* ============================================
   With Icons
   ============================================ */

.cascading-select-group.with-icon {
    position: relative;
}

.cascading-select-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--romb-gray, #767676);
    font-size: 1.125rem;
    pointer-events: none;
}

.cascading-select-group.with-icon .cascading-select {
    padding-left: 2.75rem;
}

/* ============================================
   Filter Sidebar Integration
   ============================================ */

.filter-section .cascading-select-wrapper {
    margin-bottom: 1.25rem;
}

.filter-section .cascading-select-label {
    font-size: 0.8125rem;
    font-weight: var(--font-bold, 700);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}

.filter-section .cascading-select {
    padding: 0.625rem 0.875rem;
}

/* ============================================
   Mobile Optimizations
   ============================================ */

@media (max-width: 767px) {
    .cascading-select {
        padding: 0.875rem 1rem;
        font-size: 1rem; /* iOS minimum to prevent zoom */
        -webkit-appearance: none;
        -moz-appearance: none;
    }

    .cascading-select-label {
        font-size: 0.9375rem;
    }

    /* Make tap targets larger on mobile */
    .cascading-select {
        min-height: 48px;
    }
}

/* ============================================
   Search Form Integration
   ============================================ */

.search-filters .cascading-select-wrapper {
    background: var(--romb-white, #FFFFFF);
    padding: 1rem;
    border-radius: var(--radius-md, 12px);
    border: 1px solid var(--romb-light-gray, #DDDDDD);
    margin-bottom: 1rem;
}

.search-filters .cascading-select-wrapper .cascading-select-label {
    color: var(--romb-black, #222222);
    font-weight: var(--font-bold, 700);
}

/* ============================================
   Animation Effects
   ============================================ */

.cascading-select-group {
    animation: slideIn 0.3s ease-out;
}

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

/* Child select fade in */
.cascading-select-group:nth-child(2) {
    animation: fadeIn 0.3s ease-out;
}

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

/* ============================================
   Loading Spinner Alternative
   ============================================ */

.cascading-select-spinner {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    border: 2px solid var(--romb-bg-gray, #F7F7F7);
    border-top-color: var(--romb-primary, #FF385C);
    border-radius: 50%;
    animation: spinner 0.8s linear infinite;
    display: none;
}

.cascading-select-group.is-loading .cascading-select-spinner {
    display: block;
}

@keyframes spinner {
    to {
        transform: translateY(-50%) rotate(360deg);
    }
}

/* ============================================
   Dropdown Option Styling (Modern Browsers)
   ============================================ */

.cascading-select option {
    padding: 0.5rem;
    font-size: 0.9375rem;
}

.cascading-select option:disabled {
    color: var(--romb-gray, #767676);
    font-style: italic;
}

.cascading-select option:hover {
    background-color: var(--romb-bg-gray, #F7F7F7);
}

/* ============================================
   Clear Button (Optional Enhancement)
   ============================================ */

.cascading-select-clear {
    position: absolute;
    right: 2.5rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--romb-gray, #767676);
    cursor: pointer;
    font-size: 1rem;
    padding: 0.25rem;
    opacity: 0;
    transition: opacity 0.2s;
    pointer-events: none;
}

.cascading-select-group:hover .cascading-select-clear {
    opacity: 1;
    pointer-events: auto;
}

.cascading-select-clear:hover {
    color: var(--romb-primary, #FF385C);
}

/* ============================================
   Validation States
   ============================================ */

.cascading-select-group.is-valid .cascading-select {
    border-color: var(--romb-secondary, #00A699);
}

.cascading-select-group.is-invalid .cascading-select {
    border-color: var(--romb-primary, #FF385C);
}

.cascading-select-group.is-valid::after {
    content: '✓';
    position: absolute;
    right: 2.5rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--romb-secondary, #00A699);
    font-weight: bold;
}

/* ============================================
   Dark Mode Support (Optional)
   ============================================ */

@media (prefers-color-scheme: dark) {
    .cascading-select {
        background-color: #1a1a1a;
        color: #ffffff;
        border-color: #3a3a3a;
    }

    .cascading-select:hover {
        border-color: #5a5a5a;
    }

    .cascading-select:disabled {
        background-color: #2a2a2a;
        color: #8a8a8a;
    }
}

/* ============================================
   Accessibility Improvements
   ============================================ */

.cascading-select:focus-visible {
    outline: 2px solid var(--romb-primary, #FF385C);
    outline-offset: 2px;
}

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

/* ============================================
   Integration with Advanced Search
   ============================================ */

#search-filters .cascading-select-wrapper {
    margin-bottom: 1.5rem;
}

#search-filters .cascading-select {
    background-color: var(--romb-white, #FFFFFF);
    border: 2px solid var(--romb-light-gray, #DDDDDD);
}

#search-filters .cascading-select:focus {
    border-color: var(--romb-primary, #FF385C);
    box-shadow: 0 0 0 4px rgba(255, 56, 92, 0.1);
}