/* showcase-style.css */

/* Basic Reset & Global Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth !important;
}

body {
    font-family: 'Inter', sans-serif;
    overflow-x: hidden;
    font-size: 16px;
    padding-top: 70px; /* Must match header height */
    background-color: var(--bg-page-content); /* THEME-BASED */
    color: var(--text-primary); /* THEME-BASED */
    transition: color 0.4s ease, background-color 0.4s ease;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-overlay-main); /* THEME-BASED */
    z-index: -2;
    transition: background-color 0.4s ease;
}

.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;
}

/* --- THEME VARIABLES --- */
:root, html.dark-mode {
    --bg-overlay-main: rgba(8, 8, 18, 0.65);
    --bg-header: rgba(12, 12, 22, 0.65);
    --bg-footer: #040408;
    --bg-page-content: #0f0f1a;
    --bg-media-item: rgba(30, 30, 55, 0.7);
    --bg-lightbox-overlay: rgba(10, 10, 20, 0.92);
    --bg-lightbox-content: rgba(20, 20, 35, 0.98);
    --bg-lightbox-controls: rgba(30, 30, 50, 0.6);
    --text-lightbox-controls: #e0e0e0;
    --text-lightbox-caption: #c0c8d0;
    --lightbox-counter-text-color: var(--text-secondary);
    --lightbox-animation-duration: 0.3s;
    --lightbox-image-fade-duration: 0.25s;

    --text-primary: #d5d8de;
    --text-secondary: #b0b8c5;
    --text-accent: #ffffff;
    --text-nav-link: #c0c8d0;
    --text-nav-link-hover: #ffffff;
    --text-nav-link-active: #ffffff;
    --text-link-footer: #a0a8b0;
    --text-link-footer-hover: #ffffff;

    --border-secondary: rgba(255,255,255,0.1);
    --border-theme-button: #b0b8c5;
    --border-theme-button-hover: #ffffff;
    --border-project-item-hover: rgba(255, 255, 255, 0.4);


    --focus-outline-color: #d5d8de; /* CHANGED from #79a6ff */
    --focus-shadow-color: rgba(213, 216, 222, 0.3); /* CHANGED from rgba(121, 166, 255, 0.3) */
    --theme-transition: background-color 0.35s ease, color 0.35s ease, border-color 0.35s ease;
}

html.light-mode {
    --bg-overlay-main: rgba(8, 8, 18, 0.65); /* CHANGED from rgba(255, 255, 255, 0.55) */
    --bg-header: rgba(240, 242, 248, 0.85);
    --bg-footer: #e4e9ef;
    --bg-page-content: #f4f6f8;
    --bg-media-item: #ffffff;
    --bg-lightbox-overlay: rgba(250, 250, 250, 0.95);
    --bg-lightbox-content: #ffffff;
    --bg-lightbox-controls: rgba(50, 50, 50, 0.2);
    --text-lightbox-controls: #333333;
    --text-lightbox-caption: #495057;
    --lightbox-counter-text-color: var(--text-secondary);

    --text-primary: #212529;
    --text-secondary: #495057;
    --text-accent: #0056b3;
    --text-nav-link: #333333;
    --text-nav-link-hover: #0056b3;
    --text-nav-link-active: #0056b3;
    --text-link-footer: #343a40;
    --text-link-footer-hover: #000000;

    --border-secondary: #d1d9e0;
    --border-theme-button: #505868;
    --border-theme-button-hover: #000000;
    --border-project-item-hover: #6c757d;

    --focus-outline-color: #0056b3;
    --focus-shadow-color: rgba(0, 86, 179, 0.3);
}

html.high-contrast-mode {
    --bg-overlay-main: rgba(8, 8, 18, 0.65); /* CHANGED from rgba(0,0,0,0.85) */
    --bg-header: #000000;
    --bg-footer: #000000;
    --bg-page-content: #000000;
    --bg-media-item: #0a0a0a;
    --bg-lightbox-overlay: rgba(0, 0, 0, 0.98);
    --bg-lightbox-content: #050505;
    --bg-lightbox-controls: var(--text-accent);
    --text-lightbox-controls: #000000;
    --text-lightbox-caption: #ffffff;
    --lightbox-counter-text-color: var(--text-primary);
    --lightbox-animation-duration: 0.01s;
    --lightbox-image-fade-duration: 0.01s;

    --text-primary: #ffffff;
    --text-secondary: #f0f0f0;
    --text-accent: #ffff00;
    --text-nav-link: #ffffff;
    --text-nav-link-hover: var(--text-accent);
    --text-nav-link-active: var(--text-accent);
    --text-link-footer: #f0f0f0;
    --text-link-footer-hover: var(--text-accent);

    --border-secondary: var(--text-accent);
    --border-theme-button: #ffffff;
    --border-theme-button-hover: var(--text-accent);
    --border-project-item-hover: var(--text-accent);

    --focus-outline-color: var(--text-accent);
    --focus-shadow-color: rgba(255, 255, 0, 0.4);
}

/* --- Focus Indicator --- */
a:focus-visible,
button:focus-visible,
[tabindex]:not([tabindex="-1"]):focus-visible {
    outline: 3px solid var(--focus-outline-color, Highlight);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px var(--focus-shadow-color, rgba(0,100,255,0.3));
}
html.high-contrast-mode a:focus-visible,
html.high-contrast-mode button:focus-visible,
html.high-contrast-mode [tabindex]:not([tabindex="-1"]):focus-visible {
    outline: 3px solid var(--text-accent);
    outline-offset: 2px;
    box-shadow: none;
}

/* --- Page Header --- */
.page-header {
    background-color: var(--bg-header);
    padding: 0 3vw;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    height: 70px;
    border-bottom: 1px solid var(--border-secondary);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.35s ease, border-color 0.35s ease;
    opacity: 1;
    transform: none;
}
html.high-contrast-mode .page-header { border-bottom-color: var(--text-accent); }

/* Navigation list items and theme switcher are visible by default */
.page-header .main-navigation ul li,
.page-header .theme-switcher-container {
    opacity: 1; /* Immediately visible */
    transform: none; /* In their normal position */
}

.page-header .main-navigation ul {
    list-style: none; padding: 0; margin: 0; display: flex; gap: 1em; flex-wrap: wrap; align-items: center;
}
.page-header .main-navigation ul li a {
    color: var(--text-nav-link); text-decoration: none; font-family: 'Inter', sans-serif;
    font-size: 0.8rem; font-weight: 500; text-transform: uppercase; letter-spacing: 0.5px;
    padding: 0.4em 0.2em; position: relative; overflow: hidden; display: inline-block;
    transition: color 0.35s ease;
}
.page-header .main-navigation ul li a .link-text-wrapper {
    display: inline-block; position: relative; z-index: 1;
    transition: transform 0.3s cubic-bezier(0.77, 0, 0.175, 1);
}
.page-header .main-navigation ul li a:hover .link-text-wrapper { transform: translateY(-1px); }

/* MODIFICATION START: Align underline animation with index.html */
.page-header .main-navigation ul li a::before {
    content: '';
    position: absolute;
    bottom: 0px; /* CHANGED FROM -2px */
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--text-nav-link-hover);
    transform: scaleX(0);
    transform-origin: left; /* Ensure this is 'left' */
    transition: transform 0.3s cubic-bezier(0.77, 0, 0.175, 1), background-color 0.35s ease;
    z-index: 0;
}
/* MODIFICATION END */

.page-header .main-navigation ul li a:hover::before,
.page-header .main-navigation ul li a:focus-visible::before,
.page-header .main-navigation ul li a.active-main-nav::before {
    transform: scaleX(1);
}
.page-header .main-navigation ul li a:hover,
.page-header .main-navigation ul li a:focus-visible {
    color: var(--text-nav-link-hover);
}
.page-header .main-navigation ul li a.active-main-nav {
    color: var(--text-nav-link-active);
    font-weight: 700;
}

.theme-switcher-container {
    position: relative;
    margin-left: auto;
}
#theme-toggle-button {
    background: transparent; border: 1px solid var(--border-theme-button);
    color: var(--text-secondary); padding: 0; border-radius: 50%; cursor: pointer;
    font-size: 1rem; overflow: hidden; width: 40px; height: 40px;
    display: flex; position: relative;
    transition: var(--theme-transition), transform 0.2s ease, box-shadow 0.2s ease;
}
#theme-toggle-button:hover,
#theme-toggle-button:focus-visible {
    color: var(--text-accent); border-color: var(--border-theme-button-hover);
    transform: scale(1.1) rotate(15deg);
    box-shadow: 0 0 8px 2px var(--border-theme-button-hover);
}
#theme-toggle-button .icon-wrapper { display: flex; justify-content: center; align-items: center; width: 100%; height: 100%; position: relative; }
#theme-toggle-button .theme-icon { position: absolute; font-size: 0.9em; opacity: 0; transform: translateY(100%) scale(0.5); transition: opacity 0.3s ease-out, transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1); }
#theme-toggle-button .theme-icon.active { opacity: 1; transform: translateY(0) scale(1); }


/* --- Animation Base Classes & Transitions --- */
.visible {
    opacity: 1 !important;
    transform: translateY(0) scale(1) !important;
}
.gallery-title.visible {
    transition-property: opacity, transform;
    transition-duration: 0.5s;
    transition-timing-function: cubic-bezier(0.25, 0.1, 0.25, 1);
}
.media-item.visible,
.page-footer.visible {
    transition-property: opacity, transform;
    transition-duration: 0.5s;
    transition-timing-function: cubic-bezier(0.25, 0.1, 0.25, 1);
}

.visible-reduced-motion {
    opacity: 1 !important;
    transform: none !important;
    animation: none !important;
    transition: none !important;
}

/* --- Showcase Specific Content --- */
main.gallery-main {
    flex-grow: 1;
    width: 100%;
    padding: 40px 3vw;
}

.gallery-title {
    font-family: 'Dela Gothic One', cursive;
    font-size: 2.4em;
    color: var(--text-accent);
    text-align: center;
    margin-bottom: 40px;
    opacity: 0;
    transform: translateY(20px);
}

.media-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 10px;
    margin: 0 auto;
    max-width: 1800px;
}

.media-item {
    background-color: var(--bg-media-item);
    aspect-ratio: 1 / 1;
    overflow: hidden;
    position: relative;
    border-radius: 4px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    border: 1px solid var(--border-secondary);
    opacity: 0;
    transform: translateY(30px) scale(0.95);
}

.media-item a.lightbox-trigger {
    display: block; width: 100%; height: 100%; cursor: zoom-in;
}
.media-item img, .media-item video {
    width: 100%; height: 100%; object-fit: cover; display: block;
    transition: transform 0.3s ease, filter 0.3s ease;
}
.media-item a.lightbox-trigger:hover img,
.media-item a.lightbox-trigger:focus-visible img {
    transform: scale(1.05); filter: brightness(1.1);
}
.media-item-video { aspect-ratio: 16 / 9; }


/* --- Page Footer --- */
.page-footer {
    background-color: var(--bg-footer); color: var(--text-secondary); padding: 30px 5vw;
    text-align: center; font-size: 0.8em; margin-top: auto;
    border-top: 1px solid var(--border-secondary);
    opacity: 0;
    transform: translateY(20px);
    transition: background-color 0.35s ease, color 0.35s ease, border-color 0.35s ease,
    opacity 0.6s ease-out 0.2s, transform 0.6s ease-out 0.2s;
}
html.high-contrast-mode .page-footer { border-top-color: var(--text-accent); }

.footer-content { max-width: 900px; margin: 0 auto; }
.page-footer p { margin-bottom: 15px; }
.page-footer .footer-navigation ul { list-style: none; padding: 0; margin: 0; display: flex; justify-content: center; flex-wrap: wrap; gap: 10px 20px; }
.page-footer .footer-navigation ul li a { color: var(--text-link-footer); text-decoration: none; transition: color 0.2s ease; }
.page-footer .footer-navigation ul li a:hover,
.page-footer .footer-navigation ul li a:focus-visible {
    color: var(--text-link-footer-hover); text-decoration: underline;
}

/* --- LIGHTBOX STYLES --- */
.lightbox-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background-color: var(--bg-lightbox-overlay);
    display: none; justify-content: center; align-items: center;
    z-index: 2000; opacity: 0; visibility: hidden; padding: 15px;
    transition-property: opacity, visibility;
    transition-duration: var(--lightbox-animation-duration);
    transition-timing-function: ease;
}
.lightbox-overlay.active { display: flex; opacity: 1; visibility: visible; }
.lightbox-overlay.reduced-motion { transition-duration: 0.01s !important; }

.lightbox-content-wrapper {
    background-color: var(--bg-lightbox-content);
    border-radius: 8px; box-shadow: 0 10px 30px rgba(0,0,0,0.3); padding: 20px;
    max-width: 90vw; max-height: 90vh;
    display: flex; flex-direction: column; align-items: center; position: relative;
    transform: scale(0.95); opacity: 0;
    transition-property: transform, opacity;
    transition-duration: var(--lightbox-animation-duration);
    transition-timing-function: cubic-bezier(0.175, 0.885, 0.32, 1.275);
    transition-delay: var(--lightbox-animation-duration);
}
.lightbox-overlay.active .lightbox-content-wrapper { transition-delay: 0s; transform: scale(1); opacity: 1; }
.lightbox-overlay.reduced-motion .lightbox-content-wrapper { transform: scale(1) !important; transition-duration: 0.01s !important; }

.lightbox-figure { margin: 0; line-height: 0; max-width: 100%; max-height: calc(90vh - 120px); overflow: hidden; }
#lightboxImage {
    display: block; max-width: 100%; max-height: 100%; width: auto; height: auto;
    object-fit: contain; border-radius: 4px; opacity: 0;
    transition-property: opacity;
    transition-duration: var(--lightbox-image-fade-duration);
    transition-timing-function: ease-in-out;
}

.lightbox-caption { margin-top: 15px; text-align: center; color: var(--text-lightbox-caption); font-size: 0.9em; line-height: 1.4; max-width: 70ch; }
.lightbox-caption p { margin: 0; }
.lightbox-counter { font-size: 0.8em; color: var(--lightbox-counter-text-color); margin-top: 5px; }

.lightbox-control {
    position: absolute; top: 50%; transform: translateY(-50%);
    font-size: 1.4rem; color: var(--text-lightbox-controls); background-color: var(--bg-lightbox-controls);
    border: none; border-radius: 50%; width: 44px; height: 44px; cursor: pointer;
    display: flex; justify-content: center; align-items: center; padding: 0; z-index: 2010;
    transition: background-color 0.2s ease, color 0.2s ease, opacity 0.2s ease, transform 0.15s ease;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}
.lightbox-control:hover:not(:disabled),
.lightbox-control:focus-visible:not(:disabled) { background-color: rgba(0,0,0,0.7); color: #fff; transform: translateY(-50%) scale(1.1); }
html.light-mode .lightbox-control:hover:not(:disabled),
html.light-mode .lightbox-control:focus-visible:not(:disabled) { background-color: rgba(50,50,50,0.5); color: #111; }
.lightbox-control:disabled { opacity: 0.2; cursor: default; transform: translateY(-50%) scale(1); }
.lightbox-close { top: 15px; right: 15px; transform: none; font-size: 1.8rem; }
.lightbox-close i { line-height: 1; }
.lightbox-prev { left: 15px; }
.lightbox-next { right: 15px; }
html.high-contrast-mode .lightbox-control { border: 2px solid var(--text-lightbox-controls); }
html.high-contrast-mode .lightbox-control:hover:not(:disabled),
html.high-contrast-mode .lightbox-control:focus-visible:not(:disabled) { background-color: var(--text-lightbox-controls); color: var(--bg-lightbox-controls); border-color: var(--bg-lightbox-controls); }


/* --- Media Queries --- */
@media (max-width: 768px) {
    body { padding-top: 55px; }
    .page-header { height: 55px; padding: 0 2vw; }
    .page-header .main-navigation ul { gap: 0.8em; }
    .page-header .main-navigation ul li a { font-size: 0.75rem; }
    #theme-toggle-button { width: 36px; height: 36px; font-size: 0.9rem; }

    .gallery-title { font-size: 2em; margin-bottom: 30px; }
    .media-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 15px; }

    .lightbox-content-wrapper { padding: 15px; max-width: 95vw; max-height: 95vh; }
    .lightbox-figure { max-height: calc(95vh - 100px); }
    .lightbox-control { width: 40px; height: 40px; font-size: 1.1rem; }
    .lightbox-close { top: 10px; right: 10px; font-size: 1.6rem;}
    .lightbox-prev { left: 10px; }
    .lightbox-next { right: 10px; }
    .lightbox-caption { font-size: 0.85em; margin-top: 10px;}
}

@media (max-width: 600px) {
    body { padding-top: 0; }
    .page-header { flex-direction: column; align-items: stretch; height: auto; padding: 0.5em 2vw; }
    .page-header .main-navigation { width: 100%; }
    .page-header .main-navigation ul { justify-content: center; gap: 0.3em 0.8em; }
    .page-header .main-navigation ul li a { padding: 0.3em; font-size: 0.7rem; }
    .page-header .theme-switcher-container {
        align-self: flex-end; margin-top: 0.5em;
        opacity: 1; transform: none;
    }

    .gallery-title { font-size: 1.8em; margin-bottom: 25px; }
    .media-grid { grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 10px; }
}

/* --- PREFERS REDUCED MOTION --- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-delay: -1ms !important;
        animation-duration: 1ms !important;
        animation-iteration-count: 1 !important;
        background-attachment: initial !important;
        scroll-behavior: auto !important;
        transition-duration: 0.01s !important;
        transition-delay: 0s !important;
    }

    .gallery-title,
    .media-item,
    .page-footer {
        opacity: 1 !important;
        transform: none !important;
    }
    .page-header .main-navigation ul li a:hover .link-text-wrapper { transform: none !important; }
    #theme-toggle-button:hover,
    #theme-toggle-button:focus-visible {
        transform: none !important;
        box-shadow: 0 0 8px 2px var(--border-theme-button-hover);
    }

    .lightbox-overlay.active .lightbox-content-wrapper {
        transform: scale(1) !important; opacity: 1 !important;
    }
    #lightboxImage { opacity: 1 !important; }

    .media-item a.lightbox-trigger:hover img,
    .media-item a.lightbox-trigger:focus-visible img {
        transform: none !important; filter: none !important;
    }
}