/* ============================================================================
   MULTI-SELECT DROPDOWN - Theme-aware Component
   ============================================================================
   Reusable multi-select dropdown with chips, search, and full theme support
   Uses CSS variables for automatic theme integration
   ============================================================================ */

/* ============================================================================
   CONTAINER & TRIGGER
   ============================================================================ */

.multi-select {
    position: relative;
    width: 100%;
}

.multi-select[data-disabled="true"] {
    opacity: 0.6;
    pointer-events: none;
}

.multi-select__trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    min-height: 38px;
    padding: 6px 12px;
    background: var(--color-input-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.multi-select__trigger:hover {
    border-color: var(--color-primary);
    background: var(--color-surface-hover);
}

.multi-select__trigger--open {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.1);
}

.multi-select__value {
    flex: 1;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    min-height: 24px;
    align-items: center;
}

.multi-select__placeholder {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.multi-select__actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.multi-select__clear {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    padding: 0;
    border: none;
    background: transparent;
    color: var(--color-text-secondary);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.multi-select__clear:hover {
    background: var(--color-danger);
    color: white;
    transform: scale(1.1);
}

.multi-select__arrow {
    display: flex;
    align-items: center;
    color: var(--color-text-secondary);
    font-size: var(--font-size-xs);
    transition: transform var(--transition-fast);
}

.multi-select__trigger--open .multi-select__arrow {
    transform: rotate(180deg);
}

/* ============================================================================
   CHIPS (SELECTED VALUES)
   ============================================================================ */

.multi-select__chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 8px;
    background: var(--color-primary-bg);
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    color: var(--color-primary);
    font-weight: 500;
    transition: all var(--transition-fast);
    animation: chipSlideIn 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes chipSlideIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.multi-select__chip:hover {
    background: var(--color-primary);
    color: white;
}

.multi-select__chip-label {
    line-height: 1;
}

.multi-select__chip-remove {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 14px;
    height: 14px;
    padding: 0;
    border: none;
    background: transparent;
    color: currentColor;
    cursor: pointer;
    border-radius: 50%;
    transition: all var(--transition-fast);
    font-size: 10px;
}

.multi-select__chip-remove:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.2);
}

/* ============================================================================
   DROPDOWN
   ============================================================================ */

.multi-select__dropdown {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    z-index: var(--z-dropdown);
    animation: dropdownSlideIn 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes dropdownSlideIn {
    from {
        opacity: 0;
        transform: translateY(-8px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.multi-select__dropdown-inner {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-elevated);
    overflow: hidden;
}

/* ============================================================================
   SEARCH
   ============================================================================ */

.multi-select__search {
    position: relative;
    padding: 8px 12px;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}

.multi-select__search-icon {
    position: absolute;
    left: 24px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-secondary);
    font-size: var(--font-size-xs);
    opacity: 0.6;
    pointer-events: none;
}

.multi-select__search-input {
    width: 100%;
    padding: 8px 12px 8px 32px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-input-bg);
    color: var(--color-input-text);
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
}

.multi-select__search-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.1);
}

.multi-select__search-input::placeholder {
    color: var(--color-text-secondary);
    opacity: 0.6;
}

/* ============================================================================
   OPTIONS LIST
   ============================================================================ */

.multi-select__list {
    overflow-y: auto;
    padding: 8px;
}

.multi-select__list::-webkit-scrollbar {
    width: 6px;
}

.multi-select__list::-webkit-scrollbar-track {
    background: transparent;
}

.multi-select__list::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: var(--radius-sm);
}

.multi-select__list::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-muted);
}

.multi-select__option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
    position: relative;
}

.multi-select__option:hover {
    background: var(--color-surface-hover);
    transform: translateX(2px);
}

.multi-select__option--selected {
    background: var(--color-primary-bg);
    border-color: var(--color-primary);
}

.multi-select__option--selected:hover {
    background: var(--color-primary-bg);
}

.multi-select__option-checkbox {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
}

.multi-select__option--selected .multi-select__option-checkbox {
    color: var(--color-primary);
    animation: checkboxPulse 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes checkboxPulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.2);
    }
    100% {
        transform: scale(1);
    }
}

.multi-select__option-check {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--color-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    animation: checkSlideIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes checkSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50%) scale(0);
    }
    to {
        opacity: 1;
        transform: translateY(-50%) scale(1);
    }
}

.multi-select__option-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding-right: 30px; /* Space for check icon */
}

.multi-select__option-label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text);
    line-height: 1.4;
    transition: color var(--transition-fast);
}

.multi-select__option--selected .multi-select__option-label {
    color: var(--color-primary);
    font-weight: 600;
}

.multi-select__option-description {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    line-height: 1.3;
}

.multi-select__empty {
    padding: 20px 12px;
    text-align: center;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

/* ============================================================================
   FOOTER ACTIONS
   ============================================================================ */

.multi-select__footer {
    display: flex;
    gap: 8px;
    padding: 8px 12px;
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
}

.multi-select__footer-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 12px;
    border: 1px solid var(--color-border);
    background: var(--color-input-bg);
    color: var(--color-text);
    font-size: var(--font-size-xs);
    font-weight: 500;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.multi-select__footer-btn:hover {
    background: var(--color-surface-hover);
    border-color: var(--color-primary);
}

.multi-select__footer-btn:active {
    transform: scale(0.98);
}

.multi-select__select-all:hover {
    color: var(--color-success);
    border-color: var(--color-success);
}

.multi-select__clear-all:hover {
    color: var(--color-danger);
    border-color: var(--color-danger);
}

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

@media (max-width: 768px) {
    .multi-select__dropdown-inner {
        max-height: 60vh;
    }

    .multi-select__list {
        max-height: 40vh;
    }

    .multi-select__option {
        padding: 12px;
    }

    .multi-select__chip {
        padding: 5px 10px;
        font-size: 11px;
    }
}

/* ============================================================================
   THEME-SPECIFIC ENHANCEMENTS
   ============================================================================ */

/* Cyber theme - Add subtle glow effects */
[data-theme="cyber"] .multi-select__trigger:hover,
[data-theme="cyber"] .multi-select__trigger--open {
    box-shadow: 0 0 8px rgba(0, 217, 255, 0.2);
}

[data-theme="cyber"] .multi-select__option--selected {
    box-shadow: 0 0 6px rgba(0, 217, 255, 0.15);
}

[data-theme="cyber"] .multi-select__option-check {
    box-shadow: 0 0 10px rgba(0, 217, 255, 0.4);
}

/* Dark theme - Adjust shadows for better visibility */
[data-theme="dark"] .multi-select__dropdown-inner {
    box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.5);
}

/* Minimal theme - Cleaner borders */
[data-theme="minimal"] .multi-select__chip {
    border-width: 1.5px;
}

/* Sage theme - Softer appearance */
[data-theme="sage"] .multi-select__chip {
    border-color: rgba(127, 181, 142, 0.3);
}