/**
 * Optional Section Modal Component
 * 
 * Modal overlay for optional form sections
 * 
 * Version: 1.0
 * Last Updated: 2025-01-27
 */

/* ==========================================================================
   MODAL OVERLAY
   ========================================================================== */

.optional-section-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--booking-transition-base, 0.3s ease), visibility var(--booking-transition-base, 0.3s ease);
}

.optional-section-modal[aria-hidden="false"],
.optional-section-modal.optional-section-modal--open {
    opacity: 1;
    visibility: visible;
}

.optional-section-modal__overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--booking-overlay-bg, rgba(0, 0, 0, 0.5));
    backdrop-filter: blur(4px);
}

[data-theme="dark"] .optional-section-modal__overlay {
    background: var(--booking-overlay-bg, rgba(0, 0, 0, 0.7));
}

/* ==========================================================================
   MODAL CONTAINER
   ========================================================================== */

.optional-section-modal__container {
    position: relative;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    background: var(--booking-white, #ffffff);
    border-radius: var(--booking-radius-xl, 16px);
    box-shadow: var(--booking-shadow-xl, 0 20px 25px rgba(0, 0, 0, 0.15));
    display: flex;
    flex-direction: column;
    transform: scale(0.95) translateY(20px);
    transition: transform var(--booking-transition-base, 0.3s ease);
    overflow: hidden;
}

[data-theme="dark"] .optional-section-modal__container {
    background: var(--color-background-secondary, #1f2937);
    box-shadow: 0 20px 25px rgba(0, 0, 0, 0.6);
}

.optional-section-modal[aria-hidden="false"] .optional-section-modal__container,
.optional-section-modal.optional-section-modal--open .optional-section-modal__container {
    transform: scale(1) translateY(0);
}

/* ==========================================================================
   MODAL HEADER
   ========================================================================== */

.optional-section-modal__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--booking-space-xl, 24px);
    border-bottom: 1px solid var(--booking-border, #e5e7eb);
    flex-shrink: 0;
}

[data-theme="dark"] .optional-section-modal__header {
    border-bottom-color: var(--color-border, #374151);
}

.optional-section-modal__header-content {
    display: flex;
    align-items: center;
    gap: var(--booking-space-md, 16px);
    flex: 1;
    min-width: 0;
}

.optional-section-modal__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--booking-primary-bg, rgba(12, 35, 64, 0.1));
    border-radius: var(--booking-radius-md, 8px);
    color: var(--booking-primary, #0c2340);
    flex-shrink: 0;
}

[data-theme="dark"] .optional-section-modal__icon {
    background: rgba(212, 175, 55, 0.15);
    color: var(--accent-color, #d4af37);
}

.optional-section-modal__icon i {
    font-size: var(--booking-text-xl, 20px);
}

.optional-section-modal__title-group {
    flex: 1;
    min-width: 0;
}

.optional-section-modal__title {
    font-size: var(--booking-text-xl, 20px);
    font-weight: var(--booking-font-bold, 700);
    color: var(--booking-text-primary, #111827);
    margin: 0 0 var(--booking-space-xs, 8px) 0;
    line-height: 1.3;
}

[data-theme="dark"] .optional-section-modal__title {
    color: var(--color-text-primary, #f9fafb);
}

.optional-section-modal__subtitle {
    font-size: var(--booking-text-sm, 14px);
    color: var(--booking-text-secondary, #6b7280);
    margin: 0;
    line-height: 1.5;
}

[data-theme="dark"] .optional-section-modal__subtitle {
    color: var(--color-text-secondary, #d1d5db);
}

.optional-section-modal__close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: 1px solid var(--booking-border, #e5e7eb);
    border-radius: var(--booking-radius-md, 8px);
    color: var(--booking-text-secondary, #6b7280);
    cursor: pointer;
    transition: all var(--booking-transition-base, 0.2s ease);
    flex-shrink: 0;
    margin-left: var(--booking-space-md, 16px);
}

.optional-section-modal__close:hover {
    background: var(--booking-surface-hover, #f3f4f6);
    border-color: var(--booking-primary, #0c2340);
    color: var(--booking-primary, #0c2340);
}

[data-theme="dark"] .optional-section-modal__close {
    border-color: var(--color-border, #374151);
    color: var(--color-text-secondary, #d1d5db);
}

[data-theme="dark"] .optional-section-modal__close:hover {
    background: var(--color-background-tertiary, #111827);
    border-color: var(--accent-color, #d4af37);
    color: var(--accent-color, #d4af37);
}

/* ==========================================================================
   MODAL BODY
   ========================================================================== */

.optional-section-modal__body {
    flex: 1;
    overflow-y: auto;
    padding: var(--booking-space-xl, 24px);
    min-height: 0;
}

.optional-section-modal__content {
    display: flex;
    flex-direction: column;
    gap: var(--booking-space-lg, 20px);
}

/* ==========================================================================
   MODAL FOOTER
   ========================================================================== */

.optional-section-modal__footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--booking-space-md, 16px);
    padding: var(--booking-space-xl, 24px);
    border-top: 1px solid var(--booking-border, #e5e7eb);
    flex-shrink: 0;
}

[data-theme="dark"] .optional-section-modal__footer {
    border-top-color: var(--color-border, #374151);
}

/* Mobile adjustments */
@media (max-width: 768px) {
    .optional-section-modal__container {
        width: 100%;
        max-width: 100%;
        max-height: 100vh;
        border-radius: var(--booking-radius-xl, 16px) var(--booking-radius-xl, 16px) 0 0;
        margin-top: auto;
    }
    
    .optional-section-modal__header {
        padding: var(--booking-space-lg, 20px);
    }
    
    .optional-section-modal__icon {
        width: 40px;
        height: 40px;
    }
    
    .optional-section-modal__icon i {
        font-size: var(--booking-text-lg, 18px);
    }
    
    .optional-section-modal__title {
        font-size: var(--booking-text-lg, 18px);
    }
    
    .optional-section-modal__body {
        padding: var(--booking-space-lg, 20px);
    }
    
    .optional-section-modal__footer {
        padding: var(--booking-space-lg, 20px);
        flex-direction: column-reverse;
    }
    
    .optional-section-modal__footer .btn {
        width: 100%;
    }
}