/* PetPetHK Custom Styles */
/* WCAG 2.2 AA Compliant */

/* Root Variables - WCAG AA Color Contrast Compliant */
/* 橙色主題 - 活潑生氣的風格 */
:root {
    --primary-color: #FF6B35;
    --primary-hover: #E55A2B;
    --primary-light: #FFF0EB;
    --secondary-color: #6c757d;
    --accent-color: #ff6b6b;
    --bg-light: #f8f9fa;
    --text-dark: #212529;
    --text-muted: #595959; /* Updated for WCAG AA contrast ratio */
    --focus-color: #FF6B35;
    --focus-outline: 3px solid var(--focus-color);
    
    /* Bootstrap Primary Color Override */
    --bs-primary: #FF6B35;
    --bs-primary-rgb: 255, 107, 53;
    --bs-link-color: #FF6B35;
    --bs-link-hover-color: #E55A2B;
}

/* WCAG 2.2 AA - Skip Link for Keyboard Navigation (2.4.1 Bypass Blocks) */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--primary-color);
    color: #fff;
    padding: 0.75rem 1.5rem;
    z-index: 9999;
    text-decoration: none;
    font-weight: 600;
    border-radius: 0 0 0.5rem 0;
}

.skip-link:focus {
    top: 0;
    outline: var(--focus-outline);
    outline-offset: 2px;
}

/* WCAG 2.2 AA - Focus Visible (2.4.7) & Focus Not Obscured (2.4.11) */
a:focus,
button:focus,
input:focus,
select:focus,
textarea:focus,
[tabindex]:focus {
    outline: var(--focus-outline);
    outline-offset: 2px;
    /* WCAG 2.2 - Focus Not Obscured: ensure focus is visible */
    position: relative;
    z-index: 1;
}

/* Remove default focus for mouse users, keep for keyboard */
a:focus:not(:focus-visible),
button:focus:not(:focus-visible) {
    outline: none;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: var(--focus-outline);
    outline-offset: 2px;
    /* WCAG 2.2 - Focus Appearance (2.4.13) - minimum area */
    box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.25);
}

/* General Styles */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans TC", sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    /* WCAG AA - Minimum text size */
    font-size: 1rem;
}

/* WCAG 2.2 AA - Target Size Minimum (2.5.8) - 24x24px minimum, 44x44px recommended */
.btn,
.nav-link,
.dropdown-item {
    min-height: 44px;
    min-width: 44px;
    display: inline-flex;
    align-items: center;
    /* WCAG 2.2 - Ensure adequate spacing between targets */
    margin: 2px;
}

/* WCAG 2.2 AA - Dragging Movements (2.5.7) - provide click alternative */
/* All drag operations should have click/tap alternatives */

/* WCAG 2.2 AA - Consistent Help (3.2.6) - help links in consistent location */
.help-link {
    position: fixed;
    bottom: 80px;
    right: 20px;
}

/* Navbar Styles */
.navbar-brand {
    font-size: 1.5rem;
}

.navbar .nav-link {
    padding: 0.5rem 1rem;
    transition: color 0.2s ease;
}

.navbar .nav-link:hover {
    color: var(--primary-color) !important;
}

.navbar .dropdown-menu {
    border: none;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

/* Ad Container Styles (Requirements 4.1, 4.2, 4.3, 4.4) */
.ad-container {
    background-color: var(--bg-light);
    border: 1px dashed #dee2e6;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.3s ease;
}

.ad-banner {
    min-height: 90px;
}

.ad-sidebar {
    min-height: 250px;
}

.ad-in-article {
    min-height: 280px;
    margin: 1.5rem 0;
}

/* Card Styles */
.card {
    border: none;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.1);
}

/* Article Card */
.article-card .card-img-top {
    height: 200px;
    object-fit: cover;
}

.article-card .card-title {
    font-size: 1.1rem;
    line-height: 1.4;
}

/* Footer Styles */
footer {
    margin-top: auto;
    background-color: #1a1a2e !important;
}

footer .footer-link {
    transition: color 0.2s ease, opacity 0.2s ease;
}

footer .footer-link:hover {
    color: #fff !important;
    opacity: 1 !important;
}

footer .social-links a:hover {
    color: #fff !important;
    opacity: 1 !important;
}

footer .text-warning:hover {
    color: #ffc107 !important;
}

/* WCAG Logo in Footer */
footer .wcag-logo {
    opacity: 0.9;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

footer .wcag-logo:hover {
    opacity: 1;
    transform: scale(1.05);
}

/* WCAG 2.2 AA - High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --text-muted: #000;
        --focus-outline: 3px solid #000;
    }
    
    .card {
        border: 2px solid #000;
    }
    
    a {
        text-decoration: underline;
    }
    
    /* Enhanced focus for high contrast */
    a:focus-visible,
    button:focus-visible {
        outline: 3px solid #000;
        outline-offset: 3px;
    }
}

/* WCAG 2.2 AA - Reduced Motion Support (2.3.3) */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    /* Disable parallax and complex animations */
    .parallax,
    .animate {
        transform: none !important;
    }
}

/* WCAG 2.2 AA - Text Spacing (1.4.12) - ensure content works with user text spacing */
/* Content should not be cut off when:
   - Line height: 1.5x font size
   - Paragraph spacing: 2x font size  
   - Letter spacing: 0.12x font size
   - Word spacing: 0.16x font size
*/
.content-area p,
.article-content p {
    max-width: 75ch; /* Optimal reading width */
}

/* Back to Top Button */
#btn-back-to-top {
    z-index: 1000;
    border-radius: 50%;
    width: 45px;
    height: 45px;
    opacity: 0.8;
}

#btn-back-to-top:hover {
    opacity: 1;
}

/* Responsive Adjustments (Requirements 7.1, 7.2, 7.3, 7.4) */

/* Desktop (Requirements 7.1) */
@media (min-width: 992px) {
    .navbar .nav-link {
        padding: 0.5rem 0.75rem;
    }
}

/* Tablet (Requirements 7.2) */
@media (max-width: 991.98px) {
    .navbar-collapse {
        padding: 1rem 0;
    }
    
    .navbar .dropdown-menu {
        border: none;
        box-shadow: none;
        padding-left: 1rem;
    }
    
    .ad-sidebar {
        min-height: 100px;
    }
}

/* Mobile (Requirements 7.3) */
@media (max-width: 767.98px) {
    .navbar-brand {
        font-size: 1.25rem;
    }
    
    .ad-banner {
        min-height: 50px;
    }
    
    .article-card .card-img-top {
        height: 150px;
    }
    
    footer .row > div {
        text-align: center;
    }
    
    footer .social-links {
        margin-bottom: 1rem;
    }
}

/* Utility Classes */
.text-truncate-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.text-truncate-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Loading Placeholder */
.placeholder-glow .placeholder {
    background-color: #e9ecef;
}

/* Breadcrumb */
.breadcrumb {
    background: transparent;
    padding: 0;
    margin-bottom: 1rem;
}

.breadcrumb-item + .breadcrumb-item::before {
    content: "›";
}

/* Rating Stars */
.rating-stars {
    color: #ffc107;
}

.rating-stars .bi-star {
    color: #dee2e6;
}

/* Category Badge */
.category-badge {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
}

/* Search Highlight */
.search-highlight {
    background-color: #fff3cd;
    padding: 0 0.25rem;
}

/* Print Styles */
@media print {
    .navbar,
    .ad-container,
    footer,
    #btn-back-to-top {
        display: none !important;
    }
    
    main {
        padding: 0 !important;
    }
}

/* ========================================
   Bootstrap Primary Color Override - 橙色主題
   ======================================== */

/* Primary Buttons */
.btn-primary {
    background-color: var(--primary-color) !important;
    border-color: var(--primary-color) !important;
    color: #fff !important;
}

.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active {
    background-color: var(--primary-hover) !important;
    border-color: var(--primary-hover) !important;
    color: #fff !important;
}

.btn-outline-primary {
    color: var(--primary-color) !important;
    border-color: var(--primary-color) !important;
}

.btn-outline-primary:hover,
.btn-outline-primary:focus,
.btn-outline-primary:active {
    background-color: var(--primary-color) !important;
    border-color: var(--primary-color) !important;
    color: #fff !important;
}

/* Background Colors */
.bg-primary {
    background-color: var(--primary-color) !important;
}

/* Text Colors */
.text-primary {
    color: var(--primary-color) !important;
}

/* Border Colors */
.border-primary {
    border-color: var(--primary-color) !important;
}

/* Links */
a {
    color: var(--primary-color);
}

a:hover {
    color: var(--primary-hover);
}

/* Navbar hover */
.navbar .nav-link:hover {
    color: var(--primary-color) !important;
}

/* Form Focus States */
.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(255, 107, 53, 0.25);
}

/* Pagination */
.page-link {
    color: var(--primary-color);
}

.page-link:hover {
    color: var(--primary-hover);
}

.page-item.active .page-link {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Badge */
.badge.bg-primary {
    background-color: var(--primary-color) !important;
}

/* Progress Bar */
.progress-bar {
    background-color: var(--primary-color);
}

/* List Group */
.list-group-item.active {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Dropdown */
.dropdown-item.active,
.dropdown-item:active {
    background-color: var(--primary-color);
}

/* Nav Pills & Tabs */
.nav-pills .nav-link.active {
    background-color: var(--primary-color);
}

.nav-tabs .nav-link.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

/* Accordion */
.accordion-button:not(.collapsed) {
    color: var(--primary-color);
    background-color: var(--primary-light);
}

.accordion-button:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(255, 107, 53, 0.25);
}

/* Alert Primary */
.alert-primary {
    color: #8B3A1D;
    background-color: var(--primary-light);
    border-color: #FFCDB8;
}

/* Spinner */
.spinner-border.text-primary,
.spinner-grow.text-primary {
    color: var(--primary-color) !important;
}

/* ========================================
   Secondary Color Override - 橙色副色調
   ======================================== */

/* Secondary 改為橙色深色調 */
:root {
    --secondary-color: #E55A2B;
    --secondary-light: #FF8C5A;
}

.bg-secondary {
    background-color: var(--secondary-color) !important;
}

.btn-secondary {
    background-color: var(--secondary-color) !important;
    border-color: var(--secondary-color) !important;
}

.btn-secondary:hover,
.btn-secondary:focus {
    background-color: #CC4D24 !important;
    border-color: #CC4D24 !important;
}

.btn-outline-secondary {
    color: var(--secondary-color) !important;
    border-color: var(--secondary-color) !important;
}

.btn-outline-secondary:hover {
    background-color: var(--secondary-color) !important;
    color: #fff !important;
}

.text-secondary {
    color: var(--secondary-color) !important;
}

.border-secondary {
    border-color: var(--secondary-color) !important;
}

.badge.bg-secondary {
    background-color: var(--secondary-color) !important;
}

/* Card Header 橙色主題 */
.card-header.bg-secondary {
    background-color: var(--secondary-color) !important;
}

/* 橙色淺色背景選項 */
.bg-primary-light {
    background-color: var(--primary-light) !important;
    color: var(--primary-color) !important;
}

.bg-orange-gradient {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%) !important;
}


/* ========================================
   PetPet Carousel 通用樣式
   ======================================== */

.petpet-carousel {
    position: relative;
    overflow: hidden;
    border-radius: 0.5rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

/* 固定圖片高度 */
.petpet-carousel .carousel-inner,
.petpet-carousel .carousel-item {
    height: 350px;
}

.petpet-carousel .carousel-img,
.petpet-carousel .carousel-item img {
    height: 350px;
    width: 100%;
    object-fit: cover;
}

/* 左右導航按鈕 */
.petpet-carousel .carousel-nav-btn {
    position: absolute !important;
    top: 0 !important;
    bottom: 0 !important;
    width: 15% !important;
    z-index: 10 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    background: transparent !important;
    border: none !important;
    opacity: 1 !important;
    transition: background 0.3s ease !important;
}

.petpet-carousel .carousel-control-prev {
    left: 0 !important;
}

.petpet-carousel .carousel-control-next {
    right: 0 !important;
}

.petpet-carousel .carousel-nav-btn:hover {
    background: rgba(0, 0, 0, 0.2) !important;
}

/* 箭頭圖標樣式 */
.petpet-carousel .carousel-control-prev-icon,
.petpet-carousel .carousel-control-next-icon {
    width: 40px !important;
    height: 40px !important;
    background-color: rgba(0, 0, 0, 0.5) !important;
    border-radius: 50% !important;
    background-size: 50% !important;
}

/* 底部指示器 */
.petpet-carousel .carousel-indicators {
    position: absolute !important;
    bottom: 15px !important;
    z-index: 15 !important;
    margin-bottom: 0 !important;
}

.petpet-carousel .carousel-indicators button {
    width: 12px !important;
    height: 12px !important;
    border-radius: 50% !important;
    margin: 0 5px !important;
    background-color: rgba(255, 255, 255, 0.6) !important;
    border: none !important;
    opacity: 1 !important;
}

.petpet-carousel .carousel-indicators button.active {
    background-color: #fff !important;
}

/* 手機版適配 */
@media (max-width: 768px) {
    .petpet-carousel .carousel-inner,
    .petpet-carousel .carousel-item,
    .petpet-carousel .carousel-img,
    .petpet-carousel .carousel-item img {
        height: 250px;
    }
    
    .petpet-carousel .carousel-nav-btn {
        width: 12% !important;
    }
    
    .petpet-carousel .carousel-control-prev-icon,
    .petpet-carousel .carousel-control-next-icon {
        width: 35px !important;
        height: 35px !important;
    }
    
    .petpet-carousel .carousel-indicators button {
        width: 10px !important;
        height: 10px !important;
    }
}