/**
 * Unified Search Box — ui-search-box
 *
 * Shared design system for every search input in the theme.
 * Used by template-parts/shared/search/search-box.php.
 *
 * Variants:
 *   .ui-search-box--hero     Large hero-section search (with chips)
 *   .ui-search-box--default  Archive search bar (medium, with submit btn)
 *   .ui-search-box--compact  Sidebar / widget (small, form-submit only)
 *
 * @package TiorAI
 */

/* ==========================================================================
   BASE — shared across all variants
   ========================================================================== */

.ui-search-box {
    position: relative;
}

.ui-search-box__form {
    margin: 0;
}

/* Input row */
.ui-search-box__row {
    display: flex;
    align-items: center;
    background: var(--surface-base);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-default);
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.ui-search-box__row:focus-within {
    border-color: var(--border-strong);
}

/* Leading icon */
.ui-search-box__icon {
    flex-shrink: 0;
    color: var(--color-text-tertiary);
    transition: color 0.2s ease;
    margin-left: var(--space-3);
}

.ui-search-box__row:focus-within .ui-search-box__icon {
    color: var(--color-primary);
}

/* Text input */
.ui-search-box__input {
    flex: 1;
    min-width: 0;
    border: none;
    background: transparent;
    color: var(--color-text-primary);
    outline: none;
    box-shadow: none;
    appearance: none;
}

.ui-search-box__input:focus {
    outline: none;
    box-shadow: none;
}

.ui-search-box__input::placeholder {
    color: var(--color-text-tertiary);
}

/* Remove default browser search chrome */
.ui-search-box__input::-webkit-search-decoration,
.ui-search-box__input::-webkit-search-cancel-button {
    display: none;
}

/* Submit button */
.ui-search-box__submit {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: color 0.2s ease, background 0.2s ease;
    border-radius: 0 var(--radius-default) var(--radius-default) 0;
}

.ui-search-box__submit:hover {
    color: var(--color-primary);
    background: rgba(0, 180, 216, 0.06);
}

.ui-search-box__submit:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: -2px;
}

/* Chips toggle (sliders) button */
.ui-search-box__toggle {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-default);
    border: 1px solid var(--border-default);
    background: var(--surface-card);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: var(--transition-fast);
    margin-right: var(--space-1);
}

.ui-search-box__toggle:hover,
.ui-search-box__toggle[aria-expanded="false"] {
    color: var(--color-primary);
    border-color: var(--color-primary);
    background: rgba(0, 180, 216, 0.06);
}

.ui-search-box__toggle[aria-expanded="false"] {
    background: rgba(0, 180, 216, 0.1);
}

/* ==========================================================================
   CHIPS
   ========================================================================== */

.ui-search-box__chips {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex-wrap: wrap;
    overflow: hidden;
    max-height: 120px;
    opacity: 1;
    transition: max-height 0.3s ease, opacity 0.2s ease, padding 0.25s ease;
}

.ui-search-box__chips.is-hidden {
    max-height: 0;
    opacity: 0;
    padding-top: 0 !important;
    padding-bottom: 0 !important;
    pointer-events: none;
}

.ui-search-box__chip {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    border: 1px solid var(--border-default);
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: var(--transition-fast);
    white-space: nowrap;
}

.ui-search-box__chip:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: rgba(0, 180, 216, 0.08);
}

.ui-search-box__chip--active {
    background: var(--color-primary);
    color: var(--color-text-inverse);
    border-color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
}

.ui-search-box__chip--active:hover {
    opacity: 0.9;
}

/* ==========================================================================
   AUTOCOMPLETE SUGGESTIONS DROPDOWN
   ========================================================================== */

.ui-search-box__suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 200;
    background: var(--surface-base);
    border: 1px solid var(--border-default);
    border-top: none;
    border-radius: 0 0 var(--radius-default) var(--radius-default);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    max-height: 360px;
    overflow-y: auto;
    display: none;
}

.ui-search-box__suggestions.is-visible {
    display: block;
}

.ui-search-box__suggestion {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: var(--font-size-base);
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
}

.ui-search-box__suggestion:hover,
.ui-search-box__suggestion.is-focused {
    background: rgba(255, 255, 255, 0.06);
    color: var(--color-text-primary);
}

.ui-search-box__suggestion svg {
    flex-shrink: 0;
    color: var(--color-text-tertiary);
}

.ui-search-box__suggestion:hover svg,
.ui-search-box__suggestion.is-focused svg {
    color: var(--color-primary);
}

.ui-search-box__suggestion-label {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ui-search-box__suggestion-label strong {
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
}

.ui-search-box__suggestion-type {
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
    background: rgba(255, 255, 255, 0.06);
    padding: 2px 8px;
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

/* ==========================================================================
   VARIANT — HERO  (full-width, chips row, large input)
   ========================================================================== */

.ui-search-box--hero {
    max-width: 680px;
    margin-left: auto;
    margin-right: auto;
}

.ui-search-box--hero .ui-search-box__row {
    background: var(--surface-base);
    border-radius: var(--radius-default);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.15);
    padding: var(--space-1) var(--space-2) var(--space-1) var(--space-4);
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
    border-bottom: none;
}

.ui-search-box--hero .ui-search-box__row:focus-within {
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.18);
}

/* No bottom radius when chips are visible */
.ui-search-box--hero.has-chips .ui-search-box__row {
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
}

.ui-search-box--hero .ui-search-box__input {
    padding: var(--space-3);
    font-size: var(--font-size-lg);
}

.ui-search-box--hero .ui-search-box__input::placeholder {
    font-size: var(--font-size-base);
}

.ui-search-box--hero .ui-search-box__chips {
    background: var(--surface-card);
    border: 1px solid var(--border-default);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 0 0 var(--radius-default) var(--radius-default);
    padding: var(--space-3) var(--space-4);
    justify-content: center;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.15);
}

/* When suggestions are open, override hero chips bottom radius */
.ui-search-box--hero.is-suggesting .ui-search-box__chips {
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
}

.ui-search-box--hero .ui-search-box__suggestions {
    border: 1px solid var(--border-default);
    border-top: none;
    border-radius: 0 0 var(--radius-default) var(--radius-default);
    padding: var(--space-2) 0;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.ui-search-box--hero .ui-search-box__suggestion {
    padding: var(--space-3) var(--space-5);
}

/* When hero has chips, suggestions sit BELOW chips */
.ui-search-box--hero.has-chips .ui-search-box__suggestions {
    top: auto;  /* JS positions it after the chips div */
}

/* ==========================================================================
   VARIANT — DEFAULT  (archive search bar, medium)
   ========================================================================== */

.ui-search-box--default {
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.ui-search-box--default .ui-search-box__row {
    background: var(--surface-card);
    padding: 0 var(--space-2) 0 var(--space-4);
}

.ui-search-box--default .ui-search-box__input {
    padding: var(--space-3) var(--space-2);
    font-size: var(--font-size-sm);
}

.ui-search-box--default .ui-search-box__submit {
    padding: var(--space-2) var(--space-3);
}

/* ==========================================================================
   VARIANT — COMPACT  (sidebar widget, small)
   ========================================================================== */

.ui-search-box--compact .ui-search-box__row {
    background: var(--surface-card);
    padding: 0 0 0 var(--space-3);
    border-radius: var(--radius-default);
}

.ui-search-box--compact .ui-search-box__icon {
    width: 16px;
    height: 16px;
    margin-left: 0;
}

.ui-search-box--compact .ui-search-box__input {
    padding: var(--space-2) var(--space-2);
    font-size: var(--font-size-sm);
}

/* Compact uses form submit button built into the row end */
.ui-search-box--compact .ui-search-box__row {
    overflow: hidden;
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

@media (max-width: 640px) {
    .ui-search-box--hero {
        max-width: 100%;
    }

    .ui-search-box--hero .ui-search-box__input {
        font-size: var(--font-size-base);
    }

    .ui-search-box--hero .ui-search-box__input::placeholder {
        font-size: var(--font-size-sm);
    }

    .ui-search-box--hero .ui-search-box__chips {
        gap: var(--space-1);
        padding: var(--space-2) var(--space-3);
        justify-content: flex-start;
    }

    .ui-search-box--hero .ui-search-box__chip {
        font-size: var(--font-size-xs);
        padding: var(--space-1) var(--space-2);
    }

    .ui-search-box__suggestion {
        padding: var(--space-2) var(--space-3);
    }

    .ui-search-box--default {
        max-width: 100%;
    }
}