/**
 * WPPro Header Footer - Search Modal Styles
 *
 * ADA-compliant modal search overlay that integrates with wppro-hf plugin.
 * Provides a lightbox-style search interface with proper accessibility features.
 *
 * @package Blade_Child
 * @subpackage Features/SearchModule
 * @since 1.0.0
 */

/* ==========================================================================
   CSS Custom Properties (Design Tokens)
   Customize these variables to match your site's design system.
   ========================================================================== */

:root {
    /* Modal Colors - Elegant dark theme */
    --wppro-search-modal-backdrop: rgba(15, 23, 42, 0.95);
    --wppro-search-modal-bg: transparent;
    --wppro-search-modal-text: #ffffff;
    --wppro-search-modal-border: rgba(255, 255, 255, 0.1);
    
    /* Input Colors */
    --wppro-search-input-bg: rgba(255, 255, 255, 0.08);
    --wppro-search-input-border: rgba(255, 255, 255, 0.2);
    --wppro-search-input-focus-border: #60a5fa;
    --wppro-search-input-placeholder: rgba(255, 255, 255, 0.5);
    --wppro-search-input-text: #ffffff;
    
    /* Button Colors - Gradient accent */
    --wppro-search-submit-bg: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    --wppro-search-submit-text: #ffffff;
    --wppro-search-submit-hover-bg: linear-gradient(135deg, #60a5fa 0%, #3b82f6 100%);
    --wppro-search-close-color: rgba(255, 255, 255, 0.7);
    --wppro-search-close-hover-color: #ffffff;
    --wppro-search-close-hover-bg: rgba(255, 255, 255, 0.1);
    
    /* Focus Colors (WCAG compliant) */
    --wppro-search-focus-outline: #60a5fa;
    --wppro-search-focus-bg: rgba(96, 165, 250, 0.2);
    
    /* Sizing */
    --wppro-search-modal-max-width: 680px;
    --wppro-search-modal-padding: 0;
    --wppro-search-input-height: 64px;
    --wppro-search-border-radius: 16px;
    
    /* Animation */
    --wppro-search-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   Screen Reader Only Utility
   Visually hidden but accessible to assistive technology.
   ========================================================================== */

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

/* ==========================================================================
   Modal Backdrop
   Dark overlay behind the modal content.
   ========================================================================== */

.wppro-search-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 999999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 0;
    
    /* Animation */
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--wppro-search-transition), 
                visibility var(--wppro-search-transition);
}

/* Hidden state (using HTML hidden attribute) */
.wppro-search-modal[hidden] {
    display: none;
}

/* Open state */
.wppro-search-modal.is-open {
    opacity: 1;
    visibility: visible;
}

/* Backdrop overlay */
.wppro-search-modal__backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(15, 23, 42, 0.97) 0%,
        rgba(30, 41, 59, 0.95) 50%,
        rgba(15, 23, 42, 0.97) 100%
    );
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    cursor: pointer;
}

/* ==========================================================================
   Modal Container
   The main content area of the modal.
   ========================================================================== */

.wppro-search-modal__container {
    position: relative;
    width: 90%;
    max-width: var(--wppro-search-modal-max-width);
    background-color: var(--wppro-search-modal-bg);
    border-radius: var(--wppro-search-border-radius);
    padding: var(--wppro-search-modal-padding);
    
    /* Animation */
    transform: translateY(-30px) scale(0.95);
    opacity: 0;
    transition: transform var(--wppro-search-transition),
                opacity var(--wppro-search-transition);
}

.wppro-search-modal.is-open .wppro-search-modal__container {
    transform: translateY(0) scale(1);
    opacity: 1;
}

/* ==========================================================================
   Close Button
   Positioned in top-right of modal with clear visibility.
   ========================================================================== */

.wppro-search-modal__close {
    position: absolute;
    top: -70px;
    right: 0;
    width: 48px;
    height: 48px;
    min-width: 48px;
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--wppro-search-close-hover-bg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: var(--wppro-search-close-color);
    font-size: 24px;
    font-weight: 300;
    line-height: 1;
    cursor: pointer;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all var(--wppro-search-transition);
}

.wppro-search-modal__close:hover {
    background-color: rgba(255, 255, 255, 0.15);
    color: var(--wppro-search-close-hover-color);
    transform: rotate(90deg);
    border-color: rgba(255, 255, 255, 0.3);
}

/* Focus state for close button */
.wppro-search-modal__close:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--wppro-search-focus-bg);
    background-color: var(--wppro-search-close-hover-bg);
}

.wppro-search-modal__close:focus:not(:focus-visible) {
    box-shadow: none;
}

.wppro-search-modal__close:focus-visible {
    box-shadow: 0 0 0 3px var(--wppro-search-focus-bg);
}

/* ==========================================================================
   Modal Title
   Visible title for the search modal.
   ========================================================================== */

.wppro-search-modal__title {
    margin: 0 0 2.5rem 0;
    font-size: 2rem;
    font-weight: 300;
    color: var(--wppro-search-modal-text);
    text-align: center;
    letter-spacing: -0.02em;
}

/* ==========================================================================
   Search Form
   The search input and submit button container.
   ========================================================================== */

.wppro-search-modal__form {
    display: flex;
    flex-direction: column;
    gap: 0;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--wppro-search-border-radius);
    border: 1px solid var(--wppro-search-input-border);
    overflow: hidden;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

@media (min-width: 480px) {
    .wppro-search-modal__form {
        flex-direction: row;
        align-items: stretch;
    }
}

/* Input Wrapper */
.wppro-search-modal__input-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* Label */
.wppro-search-modal__label {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Search Input */
.wppro-search-modal__input {
    width: 100%;
    height: var(--wppro-search-input-height);
    padding: 0 1.5rem;
    font-size: 1.125rem;
    font-weight: 400;
    color: var(--wppro-search-input-text);
    background-color: transparent;
    border: none;
    transition: background-color var(--wppro-search-transition);
    
    /* Remove default appearance */
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.wppro-search-modal__input::placeholder {
    color: var(--wppro-search-input-placeholder);
    opacity: 1;
}

/* Remove search cancel button in WebKit browsers */
.wppro-search-modal__input::-webkit-search-cancel-button,
.wppro-search-modal__input::-webkit-search-decoration {
    -webkit-appearance: none;
    appearance: none;
}

/* Input Focus State */
.wppro-search-modal__input:focus {
    outline: none;
    background-color: rgba(255, 255, 255, 0.05);
}

/* Form focus-within state */
.wppro-search-modal__form:focus-within {
    border-color: var(--wppro-search-input-focus-border);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5),
                0 0 0 3px var(--wppro-search-focus-bg);
}

/* ==========================================================================
   Submit Button
   Clear, accessible submit button with icon and text.
   ========================================================================== */

.wppro-search-modal__submit {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    height: var(--wppro-search-input-height);
    padding: 0 2rem;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: var(--wppro-search-submit-text);
    background: var(--wppro-search-submit-bg);
    border: none;
    cursor: pointer;
    white-space: nowrap;
    transition: all var(--wppro-search-transition);
    
    /* Minimum touch target size (WCAG 2.5.5) */
    min-width: 44px;
    min-height: 44px;
}

.wppro-search-modal__submit:hover {
    background: var(--wppro-search-submit-hover-bg);
    transform: none;
}

.wppro-search-modal__submit:active {
    transform: scale(0.98);
}

/* Submit Button Focus State */
.wppro-search-modal__submit:focus {
    outline: none;
    box-shadow: inset 0 0 0 3px rgba(255, 255, 255, 0.5);
}

.wppro-search-modal__submit:focus:not(:focus-visible) {
    box-shadow: none;
}

.wppro-search-modal__submit:focus-visible {
    box-shadow: inset 0 0 0 3px rgba(255, 255, 255, 0.5);
}

/* Submit Icon */
.wppro-search-modal__submit-icon {
    display: flex;
    align-items: center;
    justify-content: center;
}

.wppro-search-modal__submit-icon svg {
    width: 20px;
    height: 20px;
}

/* Mobile: Full width button below input */
@media (max-width: 479px) {
    .wppro-search-modal__submit {
        border-top: 1px solid rgba(255, 255, 255, 0.1);
    }
}

/* ==========================================================================
   Body State When Modal is Open
   Prevents background scrolling when modal is active.
   ========================================================================== */

body.wppro-search-modal-open {
    overflow: hidden;
    position: fixed;
    width: 100%;
    height: 100%;
}

/* ==========================================================================
   Trigger Button Styling (Optional Enhancement)
   Style the search trigger button in the header.
   ========================================================================== */

.wppro-search-trigger {
    cursor: pointer;
    transition: opacity var(--wppro-search-transition);
}

.wppro-search-trigger:hover {
    opacity: 0.8;
}

/* Focus state for trigger */
.wppro-search-trigger:focus {
    outline: 2px solid var(--wppro-search-focus-outline);
    outline-offset: 2px;
}

.wppro-search-trigger:focus:not(:focus-visible) {
    outline: none;
}

.wppro-search-trigger:focus-visible {
    outline: 2px solid var(--wppro-search-focus-outline);
    outline-offset: 2px;
}

/* ==========================================================================
   Responsive Adjustments
   ========================================================================== */

/* Small screens */
@media (max-width: 479px) {
    :root {
        --wppro-search-input-height: 56px;
        --wppro-search-border-radius: 12px;
    }
    
    .wppro-search-modal__close {
        top: -60px;
        width: 44px;
        height: 44px;
        min-width: 44px;
        min-height: 44px;
        font-size: 20px;
    }
    
    .wppro-search-modal__title {
        font-size: 1.5rem;
        margin-bottom: 2rem;
    }
    
    .wppro-search-modal__input {
        padding: 0 1.25rem;
    }
}

/* ==========================================================================
   Reduced Motion
   Respect user preference for reduced motion (WCAG 2.3.3).
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    .wppro-search-modal,
    .wppro-search-modal__container,
    .wppro-search-modal__close,
    .wppro-search-modal__input,
    .wppro-search-modal__submit,
    .wppro-search-trigger {
        transition: none;
    }
}

/* ==========================================================================
   High Contrast Mode Support
   Enhanced visibility for Windows High Contrast Mode.
   ========================================================================== */

@media (forced-colors: active) {
    .wppro-search-modal__close {
        border: 2px solid currentColor;
    }
    
    .wppro-search-modal__form {
        border: 2px solid currentColor;
    }
    
    .wppro-search-modal__input {
        border: none;
        border-right: 2px solid currentColor;
    }
    
    .wppro-search-modal__submit {
        border: none;
    }
    
    .wppro-search-modal__input:focus,
    .wppro-search-modal__submit:focus,
    .wppro-search-modal__close:focus {
        outline: 3px solid currentColor;
    }
}

/* ==========================================================================
   Print Styles
   Hide modal when printing.
   ========================================================================== */

@media print {
    .wppro-search-modal {
        display: none !important;
    }
}