/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-color: #0e2418;
    --text-color: #fafaf8;
    --card-bg: #163d2a;
    --card-border: #2d5c44;
    --accent-color: #fafaf8;
    --focus-color: #e04545;
    --card-shadow: rgba(0, 0, 0, 0.35);
    /* Case study / About column — always defined for var() in nav, footer, etc. */
    --project-page-max-width: 1000px;
    --project-page-padding-x: clamp(1.25rem, 5vw, 2rem);
    --layout-max: 1200px;
}

/* ── Satoshi Variable Font ── */
@font-face {
    font-family: 'Satoshi';
    src: url('assets/fonts/Satoshi_Complete/Fonts/WEB/fonts/Satoshi-Variable.woff2') format('woff2'),
         url('assets/fonts/Satoshi_Complete/Fonts/WEB/fonts/Satoshi-Variable.woff') format('woff'),
         url('assets/fonts/Satoshi_Complete/Fonts/WEB/fonts/Satoshi-Variable.ttf') format('truetype');
    font-weight: 300 900;
    font-display: swap;
    font-style: normal;
}
@font-face {
    font-family: 'Satoshi';
    src: url('assets/fonts/Satoshi_Complete/Fonts/WEB/fonts/Satoshi-VariableItalic.woff2') format('woff2'),
         url('assets/fonts/Satoshi_Complete/Fonts/WEB/fonts/Satoshi-VariableItalic.woff') format('woff'),
         url('assets/fonts/Satoshi_Complete/Fonts/WEB/fonts/Satoshi-VariableItalic.ttf') format('truetype');
    font-weight: 300 900;
    font-display: swap;
    font-style: italic;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Satoshi', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Inline links in main content without a class — high contrast: white, bold, underlined */
main a:not([class]) {
    color: var(--text-color);
    font-weight: 700;
    text-decoration: underline;
    text-decoration-color: currentColor;
    text-underline-offset: 0.12em;
}

main a:not([class]):visited {
    color: var(--text-color);
}

/* Top navigation */
.top-bar {
    position: relative;
    z-index: 101;
    isolation: isolate;
    flex-shrink: 0;
    padding: clamp(0.75rem, 2vh, 1.25rem) 1rem;
    border-bottom: 1px solid var(--card-border);
    background: color-mix(in srgb, var(--bg-color) 92%, transparent);
    backdrop-filter: blur(10px);
}

.top-nav {
    max-width: var(--layout-max);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.brand {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-size: clamp(0.75rem, 1.8vw, 0.95rem);
    white-space: nowrap;
    display: inline-flex;
    align-items: baseline;
    gap: 0;
    cursor: pointer;
    position: relative;
    z-index: 10;
    pointer-events: auto;
}

/* The suit symbol – transitions colour when cycling */
.brand-suit {
    display: inline-block;
    transition: color 0.15s ease, opacity 0.15s ease;
}

/* Animated title — lighter weight to contrast with the bold name */
.brand-title {
    display: inline-block;
    font-weight: 300;
}

/* Accent suits (hearts & diamonds) */
.brand-suit.suit-red {
    color: var(--focus-color);
}

.top-links {
    display: flex;
    align-items: center;
    gap: clamp(1rem, 3vw, 2rem);
}

/* Burger menu button — lines use absolute positioning for clean X transition */
.burger-menu-toggle {
    display: none;
    position: relative;
    width: 24px;
    height: 24px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 100;
    outline: none;
}

.burger-line {
    position: absolute;
    left: 0;
    right: 0;
    height: 2px;
    top: 50%;
    margin-top: -1px;
    background-color: var(--text-color);
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.2s ease;
    transform-origin: center;
}

.burger-line:nth-child(1) {
    transform: translateY(-6px);
}

.burger-line:nth-child(2) {
    transition: opacity 0.15s ease;
}

.burger-line:nth-child(3) {
    transform: translateY(6px);
}

.burger-menu-toggle[aria-expanded="true"] .burger-line:nth-child(1) {
    transform: translateY(0) rotate(45deg);
}

.burger-menu-toggle[aria-expanded="true"] .burger-line:nth-child(2) {
    opacity: 0;
    transition: opacity 0.08s ease;
}

.burger-menu-toggle[aria-expanded="true"] .burger-line:nth-child(3) {
    transform: translateY(0) rotate(-45deg);
}

.burger-menu-toggle:focus-visible {
    outline: 2px solid var(--focus-color);
    outline-offset: 3px;
    border-radius: 4px;
}

/* Mobile menu overlay — site palette, not pure black */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(14, 36, 24, 0.94);
    background: color-mix(in srgb, var(--bg-color) 88%, black);
    backdrop-filter: blur(24px) saturate(1.1);
    -webkit-backdrop-filter: blur(24px) saturate(1.1);
    z-index: 99;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.4s ease, visibility 0.4s ease;
}

.mobile-menu[aria-hidden="false"] {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.mobile-menu-nav {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    width: 100%;
    max-width: 300px;
    padding: 2rem;
    margin: 0 auto;
}

.mobile-menu-link {
    color: var(--text-color);
    text-decoration: none;
    font-size: 1.125rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 0.75rem 1.5rem;
    width: 100%;
    text-align: center;
    outline: none;
    border-radius: 4px;
    transition: background-color 0.2s ease, opacity 0.2s ease;
}

.mobile-menu-link:hover,
.mobile-menu-link:focus-visible {
    background-color: rgba(255, 255, 255, 0.1);
    opacity: 1;
}

.mobile-menu-link:focus-visible {
    outline: 2px solid var(--focus-color);
    outline-offset: 2px;
}

.mobile-lang-toggle {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1rem;
    padding-top: 2rem;
    border-top: 1px solid var(--card-border);
    width: 100%;
}

.mobile-lang-buttons {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.mobile-lang-toggle .lang-btn,
.mobile-lang-toggle .lang-sep {
    flex-shrink: 0;
}

.mobile-lang-help {
    display: none;
    font-size: 0.7rem;
    font-weight: 300;
    opacity: 0.55;
    text-align: center;
    line-height: 1.4;
    margin-top: 0.5rem;
    padding: 0 1rem;
    max-width: 260px;
}

.mobile-lang-toggle:has(.lang-btn[data-lang="nl"].active) .mobile-lang-help {
    display: block;
}

.top-links a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 0.8125rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    opacity: 0.9;
    outline: none;
}

.top-links a:hover,
.top-links a:focus-visible,
.brand:hover,
.brand:focus-visible {
    opacity: 0.7;
    text-decoration: underline;
}

.top-links a:focus-visible,
.brand:focus-visible {
    outline: 2px solid var(--focus-color);
    outline-offset: 3px;
    border-radius: 4px;
}

/* Language toggle */
.lang-toggle {
    display: flex;
    align-items: center;
    gap: 0.2rem;
}

.lang-btn {
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    font-family: inherit;
    font-size: 0.8125rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    opacity: 0.4;
    padding: 0 0.1rem;
    line-height: 1;
    transition: opacity 0.2s ease;
    outline: none;
}

.lang-btn.active {
    opacity: 1;
    font-weight: 600;
}

.lang-btn:hover:not(.active) {
    opacity: 0.75;
}

.lang-btn:focus-visible {
    outline: 2px solid var(--focus-color);
    outline-offset: 3px;
    border-radius: 4px;
}

.lang-sep {
    font-size: 0.8125rem;
    opacity: 0.25;
    color: var(--text-color);
    pointer-events: none;
    user-select: none;
}

/* Main content */
main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: clamp(0.5rem, 2vh, 1rem) 1rem;
    position: relative;
    min-height: 0;
    overflow: hidden;
}

/* Carousel container */
.card-carousel-container {
    width: 100%;
    max-width: var(--layout-max);
    margin: 0 auto;
    position: relative;
    padding: 0;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.carousel-wrapper {
    position: relative;
    width: 100%;
    flex: 1;
    min-height: 0;
    overflow: visible;
    display: flex;
    align-items: center;
    justify-content: center;
    /* NO perspective here – each card owns its own 3D context */
}

/* Card carousel – FLAT stacking (no preserve-3d) so z-index works for hit-testing */
.card-carousel {
    position: relative;
    z-index: 1;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    /* preserve-3d REMOVED – this is the root cause of hover being blocked */
}

/* Scrub: during drag, no transitions (cards follow mouse); on release, smooth animation */
.card-carousel.is-scrubbing-drag .card,
.card-carousel.is-scrubbing-drag .card::after,
.card-carousel.is-scrubbing-drag .card::before,
.card-carousel.is-scrubbing-drag .card .card-image {
    transition: none !important;
}
.card-carousel.is-scrubbing .card {
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                box-shadow 0.4s ease,
                border-color 0.4s ease;
}
.card-carousel.is-scrubbing .card::before {
    opacity: 0 !important;
    transition: opacity 0.35s ease;
}
.card-carousel.is-scrubbing .card::after,
.card-carousel.is-scrubbing .card .card-image {
    transition: opacity 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ── Individual cards ── */
.card {
    position: absolute;
    width: min(78vw, 280px);
    aspect-ratio: 7 / 10;
    height: auto;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 0;
    cursor: pointer;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.4s ease,
                border-color 0.4s ease;
    box-shadow: 0 10px 40px var(--card-shadow);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    outline: none;
    transform-origin: bottom center;
    will-change: transform;
    overflow: hidden;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    isolation: isolate;
    appearance: none;
    -webkit-appearance: none;
    pointer-events: auto;
    user-select: none;
    -webkit-user-select: none;
}

/* Dark overlay to de-emphasise non-selected cards (visual only) */
.card::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(0, 0, 0, 0.05) 0%,
        rgba(0, 0, 0, 0.25) 55%,
        rgba(0, 0, 0, 0.45) 100%
    );
    opacity: var(--overlay-opacity, 0);
    transition: opacity 0.6s ease;
    pointer-events: none;
    z-index: 1;
    border-radius: 12px;
}

/* Glare effect for selected card (subtle holographic reflection) */
.card.active::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: radial-gradient(
        farthest-corner circle at var(--pointer-x, 50%) var(--pointer-y, 50%),
        hsla(0, 0%, 100%, 0.35) 15%,
        hsla(0, 0%, 100%, 0.15) 40%,
        hsla(0, 0%, 0%, 0.2) 90%
    );
    opacity: var(--card-opacity, 0);
    mix-blend-mode: overlay;
    transition: opacity 0.3s ease;
    pointer-events: none;
    z-index: 2;
    border-radius: 12px;
}

/* Card image */
.card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border-radius: 12px;
    opacity: var(--img-opacity, 1);
    transition: opacity 0.6s ease;
    pointer-events: none;
    user-select: none;
    -webkit-user-drag: none;
}

/* Focus styles for accessibility (WCAG 2.4.7) */
.card:focus-visible {
    outline: 3px solid var(--focus-color);
    outline-offset: 4px;
    border-color: var(--focus-color);
}

/* Blue bevel around active card when arrow keys are used */
.card.card--show-select-icon {
    border-color: var(--focus-color);
    box-shadow: 0 0 0 2px var(--focus-color), 0 10px 35px var(--card-shadow);
}

/* Project meta (between cards and controls) */
.project-meta {
    text-align: center;
    margin-top: clamp(0.75rem, 2vh, 1rem);
    margin-bottom: clamp(0.5rem, 1.5vh, 0.75rem);
    z-index: 25;
    position: relative;
}

.project-meta-title {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    opacity: 0.7;
}

.project-meta-subtitle {
    margin-top: 0.25rem;
    font-size: clamp(1rem, 2.2vw, 1.25rem);
    font-weight: 300;
    letter-spacing: 0.05em;
}

.project-meta-year {
    margin-top: 0.15rem;
    font-size: 0.7rem;
    font-weight: 300;
    letter-spacing: 0.1em;
    opacity: 0.5;
}

/* Carousel controls */
.carousel-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: clamp(1rem, 2vh, 1.5rem);
    position: relative;
    z-index: 20;
    flex-shrink: 0;
}

/* The three core buttons — centred as a unit */
.carousel-controls-main {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.carousel-button {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    outline: none;
    font-family: inherit;
    font-size: 0.875rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.carousel-button.prev,
.carousel-button.next {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    /* SVG arrows — no font-size needed */
}

.carousel-button.prev svg,
.carousel-button.next svg {
    display: block;
    flex-shrink: 0;
}

.carousel-button.select {
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    min-width: 140px;
    height: 50px;
}

.carousel-button:focus-visible {
    outline: 3px solid var(--focus-color);
    outline-offset: 2px;
}

.carousel-button:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* Subtle shuffle / dice button — absolutely placed so it never shifts the centring */
.carousel-button.shuffle {
    position: absolute;
    right: 0;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    opacity: 0.45;
    transition: opacity 0.3s ease, transform 0.3s ease, background 0.3s ease;
}

/* Rotate only the SVG icon on hover — keeps the tooltip ::after pseudo-element upright */
.carousel-button.shuffle svg {
    transition: transform 0.3s ease;
}

/* Hover-only: avoids sticky :hover on touch (iOS) */
@media (hover: hover) and (pointer: fine) {
    .card.active:hover:not(:focus-visible) {
        box-shadow: 0 10px 35px var(--card-shadow);
    }

    .carousel-button:hover:not(:disabled) {
        background: var(--card-border);
        transform: scale(1.1);
    }

    .carousel-button.shuffle:hover:not(:disabled) {
        opacity: 1;
        transform: scale(1.1);
        background: var(--card-border);
    }

    .carousel-button.shuffle:hover:not(:disabled) svg {
        transform: rotate(90deg);
    }
}

/* Screen reader only content (WCAG 1.3.1) */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Responsive design (WCAG 1.4.10) */
@media (max-width: 768px) {
    .top-bar {
        padding-left: max(1rem, env(safe-area-inset-left, 0px));
        padding-right: max(1rem, env(safe-area-inset-right, 0px));
    }

    /* Hide desktop navigation, show burger menu */
    .top-links {
        display: none;
    }

    .burger-menu-toggle {
        display: flex;
    }

    .card {
        width: min(82vw, 240px);
    }

    .carousel-button.select {
        min-width: 120px;
        padding: 0.625rem 1.25rem;
        font-size: 0.8125rem;
    }

    /* Clear Safari bottom toolbar / home indicator over carousel controls */
    .carousel-controls {
        padding-bottom: calc(env(safe-area-inset-bottom, 0px) + 2.75rem);
    }
}

@media (max-width: 480px) {
    .card {
        width: min(86vw, 210px);
    }

    .carousel-button.select {
        min-width: 100px;
        padding: 0.5rem 1rem;
        font-size: 0.75rem;
    }

    .carousel-button.prev,
    .carousel-button.next {
        width: 44px;
        height: 44px;
    }
}

/* Reduced motion support (WCAG 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;
    }

    .card {
        transition: transform 0.1s ease, opacity 0.1s ease;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --card-border: #ffffff;
        --card-bg: #0a1810;
    }

    .card {
        border-width: 2px;
    }
}

/* ── Page content fade (header stays fixed, only <main> fades) ─── */
/* <main> starts invisible; JS adds .page-content-visible to fade in.
   On departure, JS removes the class to fade out, then navigates.   */
main {
    opacity: 0;
    transition: opacity 0.45s ease;
}

main.page-content-visible {
    opacity: 1;
}

/* ── Active nav link ─────────────────────────────────────────────── */
/* aria-current="page" marks whichever link matches the current page. */
.top-links a[aria-current="page"],
.mobile-menu-nav a[aria-current="page"] {
    opacity: 0.35;
    pointer-events: none; /* no benefit clicking the current-page link */
    cursor: default;
}

@media (prefers-reduced-motion: reduce) {
    main {
        transition: none;
        opacity: 1;
    }
}

/* ── Tooltips ────────────────────────────────────────────────────
   Usage: add data-tooltip="text" to any element.
   By default the tooltip appears above. Add data-tooltip-pos="below"
   to flip it beneath the element (used on the nav NL button).
   ──────────────────────────────────────────────────────────────── */
[data-tooltip] {
    position: relative;
}

/* Tooltip bubble */
[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 9px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--card-bg);
    color: var(--text-color);
    border: 1px solid var(--card-border);
    border-radius: 6px;
    padding: 0.45rem 0.8rem;
    font-size: 0.72rem;
    font-weight: 400;
    letter-spacing: 0.02em;
    line-height: 1.5;
    white-space: normal;
    text-align: center;
    max-width: 210px;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.18s ease;
    z-index: 500;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    /* prevent tooltip from being cut off near page edges */
    width: max-content;
    max-width: min(210px, 80vw);
}

/* Caret pointing down (tooltip above) */
[data-tooltip]::before {
    content: '';
    position: absolute;
    bottom: calc(100% + 3px);
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: var(--card-border);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.18s ease;
    z-index: 501;
}

/* Show on hover / focus-visible */
[data-tooltip]:hover::after,
[data-tooltip]:hover::before,
[data-tooltip]:focus-visible::after,
[data-tooltip]:focus-visible::before {
    opacity: 1;
}

/* ── Tooltip below variant ────────────────────────────────────── */
[data-tooltip-pos="below"]::after {
    bottom: auto;
    top: calc(100% + 9px);
}

[data-tooltip-pos="below"]::before {
    bottom: auto;
    top: calc(100% + 3px);
    border-top-color: transparent;
    border-bottom-color: var(--card-border);
}

@media (prefers-reduced-motion: reduce) {
    [data-tooltip]::after,
    [data-tooltip]::before {
        transition: none;
    }
}

/* Disable tooltips on mobile — they appear off-screen and don't make sense with tap */
@media (max-width: 768px) {
    [data-tooltip]::after,
    [data-tooltip]::before {
        display: none !important;
    }
}

/* Bilingual UI: ensure [hidden] wins over component display rules */
.lang-en[hidden],
.lang-nl[hidden] {
    display: none !important;
}

/* ── Mobile image expand: trigger buttons (viewport) + lightbox (always styled) ─ */
.mobile-img-expand-overlay {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: max(1rem, env(safe-area-inset-top, 0px)) max(1rem, env(safe-area-inset-right, 0px))
        max(1rem, env(safe-area-inset-bottom, 0px)) max(1rem, env(safe-area-inset-left, 0px));
    box-sizing: border-box;
    background: rgba(0, 0, 0, 0.88);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.mobile-img-expand-overlay[hidden] {
    display: none !important;
}

.mobile-img-expand-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    width: 100%;
    max-width: min(100%, 56rem);
    max-height: 100%;
    min-height: 0;
}

.mobile-img-expand-full {
    flex: 0 1 auto;
    max-width: 100%;
    max-height: min(65vh, 100%);
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 8px;
}

.mobile-img-expand-nav {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 1.25rem;
    flex-shrink: 0;
}

.mobile-img-expand-nav[hidden] {
    display: none !important;
}

.mobile-img-expand-prev,
.mobile-img-expand-next {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.75rem;
    height: 2.75rem;
    padding: 0;
    margin: 0;
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.45);
    color: var(--text-color);
    cursor: pointer;
    transition: opacity 0.2s ease, border-color 0.2s ease;
    -webkit-tap-highlight-color: transparent;
}

.mobile-img-expand-prev:disabled,
.mobile-img-expand-next:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.mobile-img-expand-prev:not(:disabled):hover,
.mobile-img-expand-next:not(:disabled):hover,
.mobile-img-expand-prev:not(:disabled):focus-visible,
.mobile-img-expand-next:not(:disabled):focus-visible {
    opacity: 1;
    border-color: rgba(255, 255, 255, 0.55);
}

.mobile-img-expand-prev:focus-visible,
.mobile-img-expand-next:focus-visible {
    outline: 3px solid var(--focus-color);
    outline-offset: 2px;
}

.mobile-img-expand-prev svg,
.mobile-img-expand-next svg {
    display: block;
    pointer-events: none;
}

.mobile-img-expand-caption {
    flex: 0 1 auto;
    width: 100%;
    max-height: min(32vh, 14rem);
    overflow-y: auto;
    overflow-x: hidden;
    padding: 0 0.25rem;
    text-align: center;
    font-size: 0.875rem;
    font-weight: 300;
    line-height: 1.55;
    opacity: 0.9;
    color: var(--text-color);
    -webkit-overflow-scrolling: touch;
}

.mobile-img-expand-caption .annotation-title {
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin: 0 0 0.5rem;
    opacity: 0.95;
}

.mobile-img-expand-caption .annotation-title + p,
.mobile-img-expand-caption p {
    margin: 0;
}

.mobile-img-expand-caption p + p {
    margin-top: 0.5rem;
}

.mobile-img-expand-close {
    position: absolute;
    top: max(0.75rem, env(safe-area-inset-top, 0px));
    right: max(0.75rem, env(safe-area-inset-right, 0px));
    z-index: 1;
    width: 2.75rem;
    height: 2.75rem;
    padding: 0;
    margin: 0;
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.55);
    color: var(--text-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 0;
    -webkit-tap-highlight-color: transparent;
}

.mobile-img-expand-close svg {
    display: block;
    flex-shrink: 0;
}

.mobile-img-expand-close:focus-visible {
    outline: 3px solid var(--focus-color);
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    .mobile-img-expand-overlay {
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
    }
}

@media (max-width: 768px) {
    .mobile-img-expand-host {
        position: relative;
    }

    .mobile-img-expand-btn {
        position: absolute;
        top: max(0.5rem, env(safe-area-inset-top, 0px));
        right: max(0.5rem, env(safe-area-inset-right, 0px));
        z-index: 6;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 2.5rem;
        height: 2.5rem;
        padding: 0;
        margin: 0;
        border: 1px solid rgba(255, 255, 255, 0.35);
        border-radius: 10px;
        background: rgba(0, 0, 0, 0.45);
        color: var(--text-color);
        cursor: pointer;
        box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
        -webkit-tap-highlight-color: transparent;
    }

    .mobile-img-expand-btn svg {
        display: block;
        pointer-events: none;
    }

    .mobile-img-expand-btn:focus-visible {
        outline: 3px solid var(--focus-color);
        outline-offset: 2px;
    }
}