/**
 * Hiro Imageboard — Global Design System
 * Version: 1.0.0
 *
 * Centralized styles for consistent spacing, typography, colors,
 * shadows, border-radius, animations, and responsive behavior.
 * WCAG 2.2 AA compliant.
 */

/* ============================================
   DESIGN TOKENS
   ============================================ */

:root {
    /* Colors — Pure Black Theme */
    --color-primary: #3b82f6;
    --color-primary-dark: #1d4ed8;
    --color-primary-light: rgba(59, 130, 246, 0.15);
    --color-bg: #000000;
    --color-surface: #000000;
    --color-text: #ffffff;
    --color-text-muted: #a1a1aa;
    --color-border: #1a1a1a;
    --color-border-light: #141414;
    --color-success: #22c55e;
    --color-success-bg: #0b2416;
    --color-error: #ef4444;
    --color-error-bg: #2d1315;
    --color-overlay: rgba(0, 0, 0, 0.98);
    --color-overlay-light: rgba(59, 130, 246, 0.15);

    /* Typography */
    --font-family: 'Archivo', -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
    --font-family-headings: 'Epilogue', -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
    --font-mono: "Courier New", monospace;
    --font-size-base: 16px;
    --line-height: 1.6;

    /* Spacing scale (4px base) */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 40px;
    --space-2xl: 60px;

    /* Border radius */
    --radius-sm: 5px;
    --radius-md: 8px;
    --radius-lg: 10px;
    --radius-pill: 20px;

    /* Shadows */
    --shadow-sm: 0 2px 5px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 5px 15px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 10px 40px rgba(0, 0, 0, 0.3);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.4s ease;

    /* Layout */
    --max-width: 1200px;
    --header-height: 60px;

    /* Z-index scale */
    --z-header: 100;
    --z-modal: 1000;
    --z-notification: 10000;
    --z-overlay: 9999;
}

/* ============================================
   RESET & BASE
   ============================================ */

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: var(--font-size-base);
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    background-color: var(--color-bg);
    font-family: var(--font-family);
    line-height: var(--line-height);
    color: var(--color-text);
    overflow-x: hidden;
    max-width: 100vw;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6, .logo {
    font-family: var(--font-family-headings);
}

/* Content link styles */
.content-section a {
    color: var(--color-primary);
    text-decoration: underline;
    transition: color var(--transition-base);
}

.content-section a:hover,
.content-section a:focus {
    color: #0056b3;
    text-decoration: none;
}

/* ============================================
   PAGE TRANSITIONS
   ============================================ */

@keyframes fadeInPage {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

main {
    animation: fadeInPage var(--transition-base);
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

header {
    background-color: var(--color-surface);
    box-shadow: var(--shadow-sm);
    padding: var(--space-md) var(--space-lg);
    position: sticky;
    top: 0;
    z-index: var(--z-header);
}

nav {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-md);
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: var(--color-text);
    text-decoration: none;
    transition: color var(--transition-base);
    white-space: nowrap;
}

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

.nav-links {
    display: flex;
    gap: var(--space-xl);
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--color-text);
    font-size: var(--font-size-base);
    position: relative;
    padding: var(--space-xs) 0;
    transition: color var(--transition-base);
    outline: none !important;
    -webkit-tap-highlight-color: transparent;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width var(--transition-base);
}

.nav-links a:hover,
.nav-links a:focus {
    color: var(--color-primary);
}

.nav-links a:hover::after,
.nav-links a:focus::after {
    width: 100%;
}

/* Search box */
.search-box {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.search-box input {
    padding: var(--space-sm) var(--space-md);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-pill);
    font-size: 14px;
    width: 200px;
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.search-box input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(0, 123, 255, 0.2);
}

/* ============================================
   BUTTONS
   ============================================ */

.submit-btn,
.buy-btn,
.home-link,
.retry-btn {
    padding: var(--space-sm) var(--space-lg);
    background-color: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    transition: background-color var(--transition-base), transform var(--transition-fast), box-shadow var(--transition-base);
    will-change: transform;
}

.submit-btn:hover,
.buy-btn:hover,
.home-link:hover,
.retry-btn:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.submit-btn:active,
.buy-btn:active,
.home-link:active,
.retry-btn:active {
    transform: translateY(0);
}

/* ============================================
   IMAGE GRID
   ============================================ */

.imageboard {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: var(--space-sm);
    max-width: var(--max-width);
    margin: var(--space-md) auto 0 auto;
    padding: 0 var(--space-sm);
}

[data-ad-placement]:empty {
    display: none !important;
}

.image-container {
    aspect-ratio: 1 / 1;
    overflow: hidden;
    background-color: transparent;
    border: none;
    padding: 0;
    margin: 0;
    cursor: pointer;
    position: relative;
    border-radius: var(--radius-sm);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    will-change: transform;
}

.image-container::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--color-overlay-light);
    transition: background var(--transition-base);
    z-index: 1;
    pointer-events: none;
}

.image-container:hover,
.image-container:focus {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.image-container:hover::before,
.image-container:focus::before {
    background: rgba(0, 123, 255, 0.1);
}

.image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform var(--transition-base);
    will-change: transform;
}

.image-container:hover img,
.image-container:focus img {
    transform: scale(1.1);
}

/* ============================================
   CARDS
   ============================================ */

.card {
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--space-xl);
}

/* ============================================
   CONTENT SECTIONS
   ============================================ */

.content-section {
    max-width: 800px;
    margin: var(--space-2xl) auto;
    padding: var(--space-xl);
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.content-section h1 {
    color: var(--color-text);
    margin-bottom: var(--space-lg);
    font-size: 32px;
}

.content-section p {
    color: var(--color-text-muted);
    font-size: var(--font-size-base);
    line-height: var(--line-height);
    margin-bottom: var(--space-md);
}

/* ============================================
   MODAL (Lightbox)
   ============================================ */

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-overlay);
    z-index: var(--z-modal);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

.modal.is-open {
    opacity: 1;
    visibility: visible;
}

.modal img {
    max-width: 90vw;
    max-height: 90vh;
    object-fit: contain;
    border-radius: var(--radius-sm);
    transform: scale(0.95);
    transition: transform var(--transition-slow);
}

.modal.is-open img {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: var(--space-lg);
    left: var(--space-lg);
    color: #fff;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    z-index: var(--z-modal) + 1;
    transition: color var(--transition-base);
    background: none;
    border: none;
    min-width: 44px;
    min-height: 44px;
    line-height: 1;
}

.modal-close:hover,
.modal-close:focus {
    color: var(--color-primary);
}

.modal-download {
    position: absolute;
    top: var(--space-lg);
    right: var(--space-lg);
    color: #fff;
    font-size: 16px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    z-index: calc(var(--z-modal) + 1);
    transition: color var(--transition-base);
    background: none;
    border: none;
    min-width: 44px;
    min-height: 44px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-download:hover,
.modal-download:focus {
    color: var(--color-primary);
}

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

.site-footer {
    background-color: var(--color-surface);
    box-shadow: var(--shadow-sm);
    padding: var(--space-xl) var(--space-lg);
    margin-top: var(--space-2xl);
}

.site-footer .footer-content {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-md);
}

.site-footer .footer-links {
    display: flex;
    gap: var(--space-lg);
    list-style: none;
    flex-wrap: wrap;
}

.site-footer .footer-links a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 14px;
    transition: color var(--transition-base);
}

.site-footer .footer-links a:hover,
.site-footer .footer-links a:focus {
    color: var(--color-primary);
}

.site-footer .footer-copy {
    color: var(--color-text-muted);
    font-size: 14px;
}

/* ============================================
   UPDATE NOTIFICATION
   ============================================ */

.update-notification {
    position: fixed;
    top: var(--space-lg);
    right: var(--space-lg);
    background-color: var(--color-primary);
    color: #fff;
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-xl);
    z-index: var(--z-notification);
    display: flex;
    align-items: center;
    gap: var(--space-md);
    min-width: 300px;
    animation: slideInRight var(--transition-slow);
}

@keyframes slideInRight {
    from {
        transform: translateX(120%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.update-notification button {
    background-color: #fff;
    color: var(--color-primary);
    border: none;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: bold;
    min-height: 44px;
    min-width: 44px;
    transition: background-color var(--transition-fast);
}

.update-notification button:hover {
    background-color: var(--color-primary-light);
}

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

/* Tablet (≤1024px) */
@media (max-width: 1024px) {
    .nav-links {
        gap: var(--space-lg);
    }

    .search-box input {
        width: 160px;
    }
}

/* Mobile (≤768px) */
@media (max-width: 768px) {
    header {
        padding: var(--space-md);
    }

    nav {
        flex-wrap: wrap;
        gap: var(--space-sm);
    }

    .nav-links {
        gap: var(--space-md);
        font-size: 14px;
    }

    .search-box {
        flex: 1;
        min-width: 150px;
    }

    .search-box input {
        width: 100%;
        max-width: 200px;
    }

    .imageboard {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-xs);
        padding: 0 var(--space-xs);
    }

    .content-section {
        margin: var(--space-lg) auto;
        padding: var(--space-lg);
    }

    .content-section h1 {
        font-size: 28px;
    }

    .site-footer .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

/* Small mobile (≤480px) */
@media (max-width: 480px) {
    .nav-links {
        gap: var(--space-sm);
    }

    .search-box input {
        max-width: 120px;
    }

    .imageboard {
        grid-template-columns: repeat(2, 1fr);
    }

    .modal-close {
        top: var(--space-sm);
        left: var(--space-sm);
        font-size: 32px;
    }

    .modal-download {
        top: var(--space-sm);
        right: var(--space-sm);
        font-size: 14px;
    }
}

/* ============================================
   GPU ACCELERATION
   ============================================ */

.image-container,
.modal,
.modal img,
.update-notification {
    will-change: transform, opacity;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

/* ============================================
   REDUCED MOTION
   ============================================ */

@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;
    }

    .image-container:hover,
    .image-container:focus,
    .splash-image:hover {
        transform: none;
    }

    .image-container:hover img,
    .image-container:focus img,
    .splash-image:hover img {
        transform: none;
    }

    main {
        animation: none;
    }
}

/* ============================================
   GRID HOVER OVERLAYS & CONTAINER STABILITY
   ============================================ */

.image-container {
    position: relative;
    overflow: hidden;
}

.grid-hover-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.85) 0%, rgba(0, 0, 0, 0.4) 60%, rgba(0, 0, 0, 0) 100%);
    padding: var(--space-md);
    color: #fff;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity var(--transition-base), transform var(--transition-base);
    pointer-events: none;
    display: flex;
    flex-direction: column;
    gap: 4px;
    text-align: left;
}

.image-container:hover .grid-hover-overlay,
.image-container:focus .grid-hover-overlay {
    opacity: 1;
    transform: translateY(0);
}

.hover-category {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--color-primary);
    letter-spacing: 1px;
}

.hover-title {
    font-size: 14px;
    font-weight: 600;
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ============================================
   RICH METADATA LIGHTBOX
   ============================================ */

.modal-content-wrapper {
    display: flex;
    flex-direction: row;
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    max-width: 90%;
    max-height: 85vh;
    box-shadow: var(--shadow-xl);
}

.modal-content-wrapper img {
    max-width: calc(100% - 320px);
    max-height: 85vh;
    object-fit: contain;
    background-color: #0d0d0d;
    display: block;
    border-radius: 0;
    transform: none !important;
}

.lightbox-meta-panel {
    width: 320px;
    padding: var(--space-lg);
    background-color: var(--color-surface);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    border-left: 1px solid var(--color-border);
    overflow-y: auto;
    box-sizing: border-box;
    text-align: left;
}

.meta-header {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.meta-category {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--color-primary);
    letter-spacing: 1.5px;
}

.meta-title {
    font-size: 22px;
    font-weight: 800;
    color: var(--color-text);
    margin: 0;
    line-height: 1.2;
}

.meta-row {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 13px;
    color: var(--color-text-muted);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-sm) 0;
}

.meta-item strong {
    color: var(--color-text);
}

.meta-description {
    font-size: 14px;
    line-height: 1.6;
    color: var(--color-text-muted);
    margin: 0;
}

.meta-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: auto;
}

.meta-tag {
    font-size: 12px;
    font-weight: 500;
    background-color: var(--color-background);
    color: var(--color-primary);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
}

/* Lightbox Navigation Buttons */
.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.4);
    color: #fff;
    border: none;
    font-size: 28px;
    padding: var(--space-md);
    cursor: pointer;
    z-index: calc(var(--z-modal) + 2);
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-nav:hover,
.lightbox-nav:focus {
    background: var(--color-primary);
}

.lightbox-prev {
    left: var(--space-lg);
}

.lightbox-next {
    right: var(--space-lg);
}

/* Responsive Lightbox */
@media (max-width: 900px) {
    .modal-content-wrapper {
        flex-direction: column;
        max-width: 95%;
        max-height: 90vh;
        overflow-y: auto;
    }

    .modal-content-wrapper img {
        max-width: 100%;
        max-height: 45vh;
    }

    .lightbox-meta-panel {
        width: 100%;
        border-left: none;
        border-top: 1px solid var(--color-border);
        max-height: none;
        overflow-y: visible;
    }

    .lightbox-nav {
        padding: var(--space-sm);
        font-size: 20px;
    }
}

/* ============================================
   SEARCH PAGE COMPONENTS
   ============================================ */

.search-page-container {
    max-width: 700px;
    margin: 40px auto 30px;
    padding: 0 var(--space-md);
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.search-heading {
    font-size: 36px;
    font-weight: 800;
    margin: 0;
    color: var(--color-text);
    letter-spacing: -0.5px;
}

.search-bar-wrapper {
    display: flex;
    gap: var(--space-sm);
    width: 100%;
}

.search-bar-input {
    flex: 1;
    padding: 14px var(--space-lg);
    font-size: 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-pill);
    background-color: var(--color-surface);
    color: var(--color-text);
    outline: none;
    box-shadow: var(--shadow-sm);
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.search-bar-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.15);
}

.search-bar-btn {
    padding: 14px var(--space-xl);
    font-size: 16px;
    font-weight: 600;
    background-color: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-pill);
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: background-color var(--transition-base), transform var(--transition-base);
}

.search-bar-btn:hover {
    background-color: var(--color-primary-dark);
}

.search-bar-btn:active {
    transform: scale(0.98);
}

.search-label {
    font-size: 12px;
    font-weight: 700;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    display: block;
    margin-bottom: var(--space-sm);
}

.search-recent-container, .search-trending-container {
    text-align: left;
    margin-top: var(--space-xs);
    background-color: var(--color-surface);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

.search-recent-list, .search-trending-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.trend-tag-btn, .recent-search-btn {
    font-size: 13px;
    font-weight: 500;
    background-color: var(--color-background);
    color: var(--color-text-muted);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-pill);
    padding: 6px 14px;
    cursor: pointer;
    transition: all var(--transition-base);
}

.trend-tag-btn:hover, .recent-search-btn:hover {
    background-color: var(--color-primary-light);
    color: var(--color-primary-dark);
    border-color: var(--color-primary);
}

.search-status-text {
    font-size: 14px;
    color: var(--color-text-muted);
    margin-top: var(--space-sm);
    font-style: italic;
}

.no-results-container {
    padding: var(--space-2xl) var(--space-lg);
    text-align: center;
    color: var(--color-text-muted);
    width: 100%;
    grid-column: 1 / -1;
}

.no-results-icon {
    font-size: 48px;
    margin-bottom: var(--space-md);
    color: var(--color-border);
}

.no-results-title {
    font-size: 22px;
    font-weight: 800;
    color: var(--color-text);
    margin: 0 0 var(--space-xs);
}

.no-results-suggestions {
    font-size: 14px;
    max-width: 460px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ============================================
   DYNAMIC TAG FILTER BAR
   ============================================ */
.filter-status-bar {
    display: none;
    align-items: center;
    justify-content: space-between;
    background-color: var(--color-surface);
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-md);
    padding: var(--space-sm) var(--space-md);
    margin: 0 auto var(--space-md);
    font-size: 14px;
    color: var(--color-text);
    box-shadow: var(--shadow-sm);
    max-width: 1200px;
    box-sizing: border-box;
}

#clear-filter-btn {
    background: none;
    border: none;
    color: var(--color-primary);
    font-weight: 700;
    cursor: pointer;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    transition: background-color var(--transition-fast);
    font-size: 13px;
}

#clear-filter-btn:hover {
    background-color: var(--color-primary-light);
}

/* ============================================
   ATTRIBUTION PANEL & LICENSE BADGES
   ============================================ */

.meta-section {
    margin-top: var(--space-sm);
}

.meta-section-title {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--color-text-muted);
    letter-spacing: 1px;
    margin-bottom: var(--space-xs);
}

.meta-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.meta-category-chip {
    font-size: 11px;
    font-weight: 600;
    background-color: var(--color-primary-light);
    color: var(--color-primary-dark);
    padding: 4px 10px;
    border-radius: var(--radius-pill);
    border: 1px solid var(--color-primary);
}

/* Attribution Box */
.attribution-box {
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    margin-top: var(--space-md);
}

.attribution-box-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--color-border-light);
}

.attribution-box-header h3 {
    font-size: 14px;
    font-weight: 700;
    color: var(--color-text);
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.attribution-icon {
    flex-shrink: 0;
}

.attribution-detail {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin-bottom: var(--space-sm);
}

.attribution-label {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--color-text-muted);
    letter-spacing: 1px;
}

.attribution-value {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    word-break: break-word;
}

.attribution-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    margin-top: var(--space-sm);
}

.attribution-link {
    font-size: 13px;
    color: var(--color-primary);
    text-decoration: none;
    padding: 6px 10px;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: background-color var(--transition-fast), border-color var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 6px;
}

.attribution-link::before {
    content: '↗';
    font-size: 12px;
    color: var(--color-primary);
}

.attribution-link:hover,
.attribution-link:focus {
    background-color: var(--color-primary-light);
    border-color: var(--color-primary);
    text-decoration: none;
}

/* License Badge */
.license-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    background-color: var(--color-success-bg);
    color: var(--color-success);
    border: 1px solid var(--color-success);
}

.license-badge.license-pd,
.license-badge.license-cc0 {
    background-color: #e8f5e9;
    color: #2e7d32;
    border-color: #66bb6a;
}

.license-badge.license-cc-by {
    background-color: #e3f2fd;
    color: #1565c0;
    border-color: #42a5f5;
}

.license-badge.license-cc-by-sa {
    background-color: #fff3e0;
    color: #e65100;
    border-color: #ff9800;
}

/* Download Button */
.meta-actions {
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border-light);
}

.meta-download-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    width: 100%;
    padding: 10px var(--space-md);
    background-color: var(--color-primary);
    color: #fff;
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    transition: background-color var(--transition-base), transform var(--transition-fast);
}

.meta-download-btn::before {
    content: '⬇';
    font-size: 14px;
}

.meta-download-btn:hover,
.meta-download-btn:focus {
    background-color: var(--color-primary-dark);
    transform: translateY(-1px);
    text-decoration: none;
}

/* Color Palette Display */
.meta-color-palette {
    display: flex;
    gap: 4px;
    margin-top: var(--space-sm);
    border-radius: var(--radius-sm);
    overflow: hidden;
    height: 24px;
}

.meta-color-swatch {
    flex: 1;
    transition: transform var(--transition-fast);
}

.meta-color-swatch:hover {
    transform: scaleY(1.2);
}

/* ============================================
   FLOATING RELOAD BUTTON & TOOLTIP
   ============================================ */

.floating-reload-container {
    position: fixed;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 990;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    pointer-events: auto;
    animation: continuousFloat 3s ease-in-out infinite;
}

/* Tooltip popping upward */
.floating-reload-tooltip {
    position: absolute;
    bottom: calc(100% + 14px);
    left: 50%;
    transform: translateX(-50%) translateY(6px);
    background-color: #111827;
    color: #ffffff;
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 600;
    border-radius: 8px;
    white-space: nowrap;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1), transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.3s;
    z-index: 991;
}

.floating-reload-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border-width: 6px;
    border-style: solid;
    border-color: #111827 transparent transparent transparent;
}

/* Show tooltip on hover, focus, or when auto-shake active */
.floating-reload-container:hover .floating-reload-tooltip,
.floating-reload-btn:focus-visible + .floating-reload-tooltip,
.floating-reload-container.show-tooltip .floating-reload-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

/* Floating Action Button */
.floating-reload-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--color-surface);
    border: 2px solid rgba(0, 123, 255, 0.4);
    box-shadow: 0 4px 14px rgba(0, 123, 255, 0.35), 0 0 12px rgba(0, 123, 255, 0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    outline: none;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease, border-color 0.3s ease;
    padding: 0;
    overflow: hidden;
}

.floating-reload-btn img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    transition: transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.floating-reload-btn:hover {
    transform: scale(1.12);
    border-color: var(--color-primary);
    box-shadow: 0 6px 22px rgba(0, 123, 255, 0.55), 0 0 18px rgba(0, 123, 255, 0.4);
}

.floating-reload-btn:active {
    transform: scale(0.95);
}

.floating-reload-btn.spinning img {
    transform: rotate(360deg);
}

/* Periodic Automatic Shake Animation */
.floating-reload-container.is-shaking {
    animation: floatAutoShake 0.75s ease-in-out;
}

.floating-reload-container.is-shaking .floating-reload-btn {
    box-shadow: 0 0 24px rgba(0, 123, 255, 0.7), 0 4px 18px rgba(0, 123, 255, 0.5);
    border-color: #007bff;
}

@keyframes continuousFloat {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-10px); }
}

@keyframes floatAutoShake {
    0%, 100% { transform: translateX(-50%) translateY(0) rotate(0deg); }
    15% { transform: translateX(-50%) translateY(-5px) rotate(-10deg); }
    30% { transform: translateX(-50%) translateY(0) rotate(10deg); }
    45% { transform: translateX(-50%) translateY(-4px) rotate(-7deg); }
    60% { transform: translateX(-50%) translateY(0) rotate(5deg); }
    75% { transform: translateX(-50%) translateY(-2px) rotate(-3deg); }
}

@media (max-width: 768px) {
    .floating-reload-container {
        bottom: 20px;
        left: 50%;
        transform: translateX(-50%);
    }
    .floating-reload-btn {
        width: 52px;
        height: 52px;
    }
    .floating-reload-btn img {
        width: 100%;
        height: 100%;
    }
    .floating-kofi-container {
        bottom: 20px;
        right: 16px;
    }
    .floating-kofi-btn {
        width: 52px;
        height: 52px;
    }
}

/* ============================================
   FLOATING KO-FI DONATION BUTTON & TOOLTIP
   ============================================ */

.floating-kofi-container {
    position: fixed;
    bottom: 28px;
    right: 28px;
    z-index: 990;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    pointer-events: auto;
    animation: kofiFloat 3.2s ease-in-out infinite;
}

/* Tooltip popping upward */
.floating-kofi-tooltip {
    position: absolute;
    bottom: calc(100% + 14px);
    left: 50%;
    transform: translateX(-50%) translateY(6px);
    background-color: #00b4f6;
    color: #ffffff;
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 700;
    border-radius: 8px;
    white-space: nowrap;
    box-shadow: 0 4px 18px rgba(0, 180, 246, 0.45);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1), transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.3s;
    z-index: 991;
}

.floating-kofi-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border-width: 6px;
    border-style: solid;
    border-color: #00b4f6 transparent transparent transparent;
}

/* Show tooltip on hover, focus, or when auto-shake active */
.floating-kofi-container:hover .floating-kofi-tooltip,
.floating-kofi-btn:focus-visible + .floating-kofi-tooltip,
.floating-kofi-container.show-tooltip .floating-kofi-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

/* Floating Action Link Button with Ko-fi Image Cyan Glow */
.floating-kofi-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: #00b4f6;
    border: 2px solid rgba(0, 180, 246, 0.8);
    box-shadow: 0 0 22px rgba(0, 180, 246, 0.7), 0 4px 16px rgba(0, 180, 246, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    outline: none;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease, border-color 0.3s ease;
    padding: 0;
    overflow: hidden;
    text-decoration: none;
}

.floating-kofi-btn img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    transition: transform 0.3s ease;
}

.floating-kofi-btn:hover {
    transform: scale(1.14);
    box-shadow: 0 0 34px rgba(0, 180, 246, 0.95), 0 6px 26px rgba(0, 180, 246, 0.75);
}

.floating-kofi-btn:active {
    transform: scale(0.95);
}

/* Periodic Automatic Shake Animation for Ko-fi */
.floating-kofi-container.is-shaking {
    animation: kofiAutoShake 0.75s ease-in-out;
}

.floating-kofi-container.is-shaking .floating-kofi-btn {
    box-shadow: 0 0 36px rgba(0, 180, 246, 0.98), 0 0 18px rgba(255, 255, 255, 0.85);
}

@keyframes kofiFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes kofiAutoShake {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    15% { transform: translateY(-6px) rotate(-12deg); }
    30% { transform: translateY(0) rotate(12deg); }
    45% { transform: translateY(-4px) rotate(-8deg); }
    60% { transform: translateY(0) rotate(6deg); }
    75% { transform: translateY(-2px) rotate(-3deg); }
}