:root {
    --color-bg-primary: #121213;
    --color-bg-secondary: #27272c;
    --color-bg-card: #1e1e1e;
    --color-bg-card-hover: #27262b;
    --color-text-primary: #eee;
    --color-text-secondary: #7b7c7e;
    --color-text-muted: #ddd;
    --color-border: #333;
    --color-border-light: #444;
    --color-accent: #29abe0;
    --color-accent-hover: #136dd4;
    --color-glow: rgba(75, 102, 150, 0.5);

    --color-strs: #28295e;
    --color-prog: #796323;
    --color-tlm: #612828;

    --font-family-base: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, 'Helvetica Neue', Arial, 'Noto Sans', 'Apple Color Emoji', 'Segoe UI Emoji';

    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 0.75rem;
    --spacing-lg: 1rem;
    --spacing-xl: 1.5rem;
    --spacing-2xl: 2rem;

    --border-radius-sm: 0.5rem;
    --border-radius-md: 0.75rem;
    --border-radius-lg: 1rem;
    --border-radius-xl: 1.2rem;
    --border-radius-full: 50%;

    --transition-fast: 0.15s ease;
    --transition-normal: 0.2s ease;

    --shadow-card: 0 6px 20px var(--color-glow);
    --shadow-lightbox: 0 0 20px rgba(0, 0, 0, 0.5);
}

* {
    box-sizing: border-box;
}

html,
body {
    overflow-x: hidden;
}

body {
    margin: 0;
    font-family: var(--font-family-base);
    line-height: 1.6;
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    width: 100%;
    padding: 0 var(--spacing-lg);
}

.site-header {
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    padding-top: var(--spacing-sm);
}

.line-container {
    padding: 0 var(--spacing-lg);
    max-width: 1100px;
    margin: 0 auto;
}

.header-divider {
    opacity: 0.2;
    display: block;
    width: 100%;
    height: auto;
    margin-top: var(--spacing-md);
}

.site-header .header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1100px;
    margin: 0 auto;
    padding: var(--spacing-lg);
}

.site-header a {
    color: #fff;
    text-decoration: none;
}

.site-header .brand img {
    border-radius: var(--border-radius-full);
    height: 50px;
    width: 50px;
    flex-shrink: 0;
}

.brand {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 50px;
}

.brand::after {
    content: "";
    position: absolute;
    width: 36px;
    height: 36px;
    background-image: url("/assets/images/UI/icon_hover.png");
    background-size: contain;
    background-repeat: no-repeat;
    pointer-events: none;

    top: 67%;
    left: 20%;
    transform-origin: 10% 10%;
    transform: translate(12px, -12px) rotate(270deg);
    opacity: 0;

    transition: opacity 0.5s ease, transform 0.5s ease, filter 0.5s ease;
    filter: drop-shadow(0 0 4px var(--color-accent)) drop-shadow(0 0 8px var(--color-accent));
}

.brand::before {
    content: "";
    position: absolute;
    width: 36px;
    height: 36px;
    background-image: url("/assets/images/UI/icon_hover.png");
    background-size: contain;
    background-repeat: no-repeat;
    pointer-events: none;

    top: 20%;
    left: 67%;
    transform-origin: 10% 10%;
    transform: translate(-12px, 12px) rotate(90deg);
    opacity: 0;

    transition: opacity 0.5s ease, transform 0.5s ease, filter 0.5s ease;
    filter: drop-shadow(0 0 4px var(--color-accent)) drop-shadow(0 0 8px var(--color-accent));
}


.brand:hover::after,
.brand:hover::before {
    opacity: 1;
}

.brand::after {
    transform: translate(12px, -12px) rotate(270deg);
}

.brand:hover::after {
    transform: translate(12px, -12px) rotate(360deg);
    /* 270 → 360 = 90° short path */
}

/* Top-left orbit */
.brand::before {
    transform: translate(-12px, 12px) rotate(90deg);
}

.brand:hover::before {
    transform: translate(-12px, 12px) rotate(180deg);
}



/* Keyframes for orbit */
@keyframes orbit {
    0% {
        transform: translate(20px, -20px) rotate(270deg);
    }

    100% {
        transform: translate(20px, -20px) rotate(360deg);
    }
}

@keyframes orbitMirror {
    0% {
        transform: translate(-20px, -20px) rotate(0deg);
    }

    100% {
        transform: translate(-20px, -20px) rotate(-360deg);
    }
}



.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
    padding-bottom: var(--spacing-2xl);
    margin-bottom: var(--spacing-sm);
}

@media (max-width: 600px) {
    .site-header .container {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }

    .site-header .header-container {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-sm);
    }

    .header-buttons {
        width: 100%;
        flex-wrap: wrap;
        gap: var(--spacing-sm);
    }

    .header-btn {
        flex: 1 1 auto;
        text-align: center;
    }
}

.header-buttons {
    display: flex;
    gap: var(--spacing-xl);
    align-items: center;
    flex-shrink: 0;
}

.header-btn {
    transform: translateY(0);
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-xl);
    color: var(--color-text-primary);
    font-size: 1rem;
    cursor: pointer;
    text-decoration: none;
    overflow: visible;
    /* allow swirls outside button */
    transition:
        background var(--transition-normal),
        transform var(--transition-normal),
        color var(--transition-normal),
        box-shadow var(--transition-normal);
}

.header-btn:hover {
    transform: translateY(-3px);
    text-shadow:
        0 0 5px rgba(41, 171, 224, 0.5),
        0 0 10px rgba(41, 171, 224, 0.5),
        0 0 15px rgba(41, 171, 224, 0.5),
        0 0 20px rgba(41, 171, 224, 0.5);
}

.header-btn.kofi-btn {
    color: #fff;
    text-shadow:
        0 0 5px var(--color-accent),
        0 0 10px var(--color-accent);
    transform: translateY(0);
    transition:
        transform var(--transition-normal),
        background var(--transition-normal),
        color var(--transition-normal),
        box-shadow var(--transition-normal),
        filter 0.3s ease;
}

.header-btn.kofi-btn:hover {
    transform: translateY(-3px);
    text-shadow:
        0 0 5px var(--color-accent),
        0 0 10px var(--color-accent),
        0 0 15px var(--color-accent),
        0 0 20px var(--color-accent);
}


.header-btn.kofi-btn img.kofi-logo {
    transition: filter 0.3s ease;
    filter:
        drop-shadow(0 0 5px var(--color-accent));
}

.header-btn.kofi-btn:hover img.kofi-logo {
    filter:
        drop-shadow(0 0 5px var(--color-accent)) drop-shadow(0 0 10px var(--color-accent));
}

.header-btn::before,
.header-btn::after {
    content: "";
    position: absolute;
    top: 50%;
    width: 2em;
    height: 100%;
    background: url("/assets/images/UI/select.png") no-repeat center / contain;
    opacity: 0;
    transform: translateY(-50%) scaleX(1);
    transition: opacity 0.3s ease, transform 0.3s ease, filter 0.3s ease;
    pointer-events: none;
    filter: drop-shadow(0 0 0 rgba(75, 102, 150, 0));
}

.header-btn::before {
    left: -4.2em;
}

.header-btn::after {
    right: -4.2em;
    transform: translateY(-50%) scaleX(-1);
}

.header-btn:hover::before {
    opacity: 1;
    transform: translateY(-50%) translateX(3em) scaleX(1);
    filter: drop-shadow(0 0 8px var(--color-accent)) drop-shadow(0 0 4px rgba(41, 171, 224, 0.5));
}

.header-btn:hover::after {
    opacity: 1;
    transform: translateY(-50%) translateX(-3em) scaleX(-1);
    filter: drop-shadow(0 0 8px var(--color-accent)) drop-shadow(0 0 4px rgba(41, 171, 224, 0.5));
}

.kofi-logo {
    height: 20px;
    width: auto;
    display: inline-block;
}

.content {
    padding-top: var(--spacing-lg);
    padding-bottom: var(--spacing-2xl);
}

h1,
h2,
h3 {
    line-height: 1.2;
}

.muted {
    opacity: 0.5;
}

.filters {
    margin: var(--spacing-lg) 0;
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background: #27282cb9;
    border: none;
    color: var(--color-text-primary);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: background var(--transition-normal), transform var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.filter-btn:hover {
    background: #3a3a3a;
    transform: translateY(-3px);
}

.filter-btn.active {
    overflow: visible;
}

/* Corner pseudo-elements for all buttons */
.filter-btn::before,
.filter-btn::after {
    content: "";
    position: absolute;
    width: 22px;
    height: 22px;
    background-image: url("/assets/images/UI/select_filter.png");
    background-size: contain;
    background-repeat: no-repeat;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

/* Positioning */
.filter-btn::before {
    top: 40%;
    right: 0%;
    transform: rotate(180deg);
}

.filter-btn::after {
    bottom: 40%;
    left: 0%;
    transform: rotate(0deg);
}

.filter-btn.active::before,
.filter-btn.active::after {
    opacity: 1;
}

.filter-btn:hover::before,
.filter-btn:hover::after {
    opacity: 1;
}

.filters:has(.filter-btn:hover) .filter-btn.active:not(:hover)::before,
.filters:has(.filter-btn:hover) .filter-btn.active:not(:hover)::after {
    opacity: 0;
}





.filter-btn[data-filter="Strength Seeker"].active {
    background: radial-gradient(circle, rgba(18, 18, 19, 0) 0%, var(--color-strs) 100%);
    color: #fff;
}

.filter-btn[data-filter="Progenies"].active {
    background: radial-gradient(circle, rgba(18, 18, 19, 0) 0%, var(--color-prog) 100%);
    color: #fff;
}

.filter-btn[data-filter="The Long Midnight"].active {
    background: radial-gradient(circle, rgba(18, 18, 19, 0) 0%, var(--color-tlm) 100%);
    color: #fff;
}

.filter-btn[data-filter="Misc"].active {
    background: radial-gradient(circle, rgba(18, 18, 19, 0) 0%, #6c757d 100%);
    color: #fff;
}

.filter-btn[data-filter="all"].active {
    background: radial-gradient(circle, rgba(18, 18, 19, 0) 0%, #3498db 100%);
    color: #fff;
}

.filter-btn[data-filter="all"]:hover {
    background: #3498db;
    color: #fff;
}

.filter-btn[data-filter="Strength Seeker"]:hover {
    background: var(--color-strs);
    color: #fff;
}

.filter-btn[data-filter="Progenies"]:hover {
    background: var(--color-prog);
    color: #fff;
}

.filter-btn[data-filter="The Long Midnight"]:hover {
    background: var(--color-tlm);
    color: #fff;
}

.filter-btn[data-filter="Misc"]:hover {
    background: #6c757d;
    color: #fff;
}



.oc-grid {
    display: grid;
    justify-content: center;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--spacing-md);
}

@media (max-width: 500px) {
    .oc-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: var(--spacing-sm);
    }
}


/* OC Card Wrapper */
.oc-card-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 1 / 1.3;
}

.oc-card-wrapper .oc-card {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* Frame overlay */
.oc-card-wrapper .frame {
    position: absolute;
    inset: 0;
    width: 105%;
    height: 105%;
    transform: translate(-2%, -2%);
    pointer-events: none;
    background-repeat: no-repeat;
    background-size: 100% 100%;
    image-rendering: crisp-edges;
    z-index: 2;
    transition: transform var(--transition-normal), filter var(--transition-normal);
    filter: brightness(0.25);
}

.oc-card-wrapper:hover .frame {
    transform: translate(-2%, -2%) scale(1.10);
    filter: brightness(1.0);
}

.oc-card-wrapper[data-universe="Strength Seeker"] .frame {
    background-image: url("/assets/images/frames/frame_strs.png");
}

.oc-card-wrapper[data-universe="Progenies"] .frame {
    background-image: url("/assets/images/frames/frame_prog.png");
}

.oc-card-wrapper[data-universe="The Long Midnight"] .frame {
    background-image: url("/assets/images/frames/frame_midnight.png");
}

/* Universe-specific shadow colors */
.oc-card-wrapper[data-universe="Strength Seeker"] {
    --shadow-card: 0 6px 20px rgba(61, 146, 180, 0.5);
}

.oc-card-wrapper[data-universe="Progenies"] {
    --shadow-card: 0 6px 20px rgba(179, 145, 43, 0.5);
}

.oc-card-wrapper[data-universe="The Long Midnight"] {
    --shadow-card: 0 6px 20px rgba(155, 38, 38, 0.5);
}

.oc-card-wrapper[data-universe="Misc"] {
    --shadow-card: 0 6px 20px rgba(122, 125, 128, 0.5);
}

/* OC Card */
.oc-card {
    position: relative;
    border: none;
    border-radius: var(--border-radius-md);
    overflow: visible;
    text-decoration: none;
    color: var(--color-text-primary);
    box-shadow: 0 0 0 var(--color-glow);
    transition: box-shadow var(--transition-fast), transform var(--transition-fast);
    aspect-ratio: 1 / 1.3;
    background: var(--color-bg-card);
    isolation: isolate;
}

.oc-card-wrapper:hover .oc-card {
    box-shadow: var(--shadow-card);
    transform: translateY(-3px);
}

.oc-thumb {
    position: absolute;
    inset: 0;
    z-index: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    border-radius: var(--border-radius-md);
}

.oc-thumb img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.oc-meta {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(14, 14, 14, 0.7);
    padding: var(--spacing-lg);
    z-index: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.title-wrapper {
    display: flex;
    align-items: center;
    height: 2.4em;
}

.title-wrapper h2 {
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.2em;
    margin: 0;
    width: 100%;
    word-break: break-word;
    hyphens: auto;
}

.oc-meta .muted {
    margin: 0;
    font-size: 0.9rem;
}

.oc-meta .tag {
    margin-top: auto;
    align-self: flex-start;
}

.tag {
    display: inline-block;
    color: var(--color-text-muted);
    border-radius: var(--border-radius-sm);
    padding: 0.1rem var(--spacing-sm);
    font-size: 0.8rem;
}

/* Universe-specific tag colors */
.oc-card[data-universe="Misc"] .tag {
    background-color: #6c757d;
    color: #fafafa;
}

.oc-card[data-universe="Progenies"] .tag {
    background-color: var(--color-prog);
    color: #fafafa;
}

.oc-card[data-universe="Strength Seeker"] .tag {
    background-color: var(--color-strs);
    color: #fafafa;
}

.oc-card[data-universe="The Long Midnight"] .tag {
    background-color: var(--color-tlm);
    color: #fafafa;
}

/* Protagonist star indicator */
.oc-card.protagonist::after {
    content: "★";
    position: absolute;
    top: 0.4rem;
    right: 1rem;
    font-size: 1.5rem;
    color: rgb(255, 255, 255);
    text-shadow:
        0 0 10px rgb(119, 139, 255),
        0 0 30px rgb(171, 214, 255);
    pointer-events: none;
    z-index: 10;
    animation: starGlow 2s ease-in-out infinite alternate;
}

@keyframes starGlow {
    from {
        text-shadow:
            0 0 5px rgb(119, 139, 255),
            0 0 20px rgb(171, 214, 255);
    }

    to {
        text-shadow:
            0 0 10px rgba(119, 139, 255, 0.671),
            0 0 15px rgba(171, 214, 255, 0.774),
            0 0 20px rgba(171, 214, 255, 0.452);
    }
}

/* OC Page Styles */
.oc-page .featured img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius-lg);
}

.oc-meta-line {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.meta {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.container .brand img {
    border-radius: var(--border-radius-full);
    height: 50px;
    width: 50px;
}

.oc-header {
    display: flex;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
    align-items: flex-start;
    flex-wrap: wrap;
}

.oc-header .featured {
    width: 100%;
    max-width: 250px;
    aspect-ratio: 1 / 1.3;
    overflow: hidden;
    border-radius: var(--border-radius-lg);
    flex-shrink: 0;
}

.oc-header .featured img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

@media (min-width: 768px) {
    .oc-header .featured {
        width: 30%;
    }
}

.oc-header .oc-info {
    flex: 1;
    min-width: 200px;
}

.oc-header .oc-info h1 {
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.2em;
    max-height: 2.4em;
    word-break: break-word;
}

.oc-header .oc-meta-line {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

/* Gallery */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: var(--spacing-sm);
}

.gallery-item {
    position: relative;
    width: 100%;
    aspect-ratio: 1 / 1;
    overflow: hidden;
    border-radius: var(--border-radius-sm);
    transition: box-shadow var(--transition-normal), transform var(--transition-normal);
}

.gallery-item:hover {
    box-shadow: 0 4px 15px var(--color-glow);
    transform: translateY(-3px) scale(1.05);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    background: #222;
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.lightbox-content {
    max-width: 90%;
    max-height: 90%;
    border-radius: 8px;
    box-shadow: var(--shadow-lightbox);
    transition: transform 200ms ease;
    cursor: zoom-in;
    position: relative;
    z-index: 2;
}

.lightbox.lightbox--zoomed .lightbox-content {
    cursor: zoom-out;
}

.lightbox .close {
    position: absolute;
    top: 20px;
    right: 35px;
    font-size: 40px;
    color: white;
    cursor: pointer;
    transition: opacity var(--transition-fast);
}

.lightbox .close:hover {
    opacity: 0.7;
}

.lightbox .prev,
.lightbox .next {
    cursor: pointer;
    position: absolute;
    top: 50%;
    padding: 16px;
    margin-top: -22px;
    color: white;
    font-size: 40px;
    user-select: none;
    transition: opacity var(--transition-fast);
}

.lightbox .prev:hover,
.lightbox .next:hover {
    opacity: 0.7;
}

.lightbox .prev {
    left: 0;
}

.lightbox .next {
    right: 0;
}

.footer-divider {
    display: block;
    width: 100%;
    height: auto;
    opacity: 0.2;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
    transform: scaleY(-1);
}

@media (max-width: 768px) {
    .filter-btn {
        padding: 0.5rem 0.5rem;
        font-size: 0.75rem;
    }

    .container {
        padding: var(--spacing-sm);
    }

    #lightbox #lightbox-img {
        touch-action: pan-y;
    }

    .lightbox .prev,
    .lightbox .next {
        display: none !important;
    }

    h1 {
        font-size: 1.5rem;
    }

    h2 {
        font-size: 1.25rem;
    }

    h3 {
        font-size: 1rem;
    }

    .header-btn {
        font-size: 0.85rem;
        padding: 0.4rem 0.8rem;
    }

    .site-header .container {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-sm);
    }

    .site-header .header-container {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-sm);
    }

    .header-buttons {
        flex-direction: column;
        width: 100%;
        gap: var(--spacing-sm);
        align-items: center;
    }

    .header-btn {
        display: flex;
        justify-content: center;
        align-items: center;
        width: 100%;
        text-align: center;
        gap: var(--spacing-sm);
    }

    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }

    .oc-header .featured {
        width: 30%;
        height: auto;
        object-fit: cover;
        display: block;
    }

    .oc-card .title-wrapper h2 {
        font-size: 0.9rem;
        line-height: 1.1em;
    }

    .oc-card .oc-meta .muted {
        font-size: 0.8rem;
    }

    .oc-card .tag {
        font-size: 0.7rem;
        padding: 0.05rem var(--spacing-xs);
    }

    .oc-card .oc-meta {
        padding: var(--spacing-sm) var(--spacing-md);
        gap: var(--spacing-xs);
    }

    .oc-card .title-wrapper {
        height: 2em;
    }
}

.gallery-item img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: opacity 0.2s ease;
}

#oc-search {
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-sm);
    border: none;
    background: #27282cb9;
    color: var(--color-text-primary);
    font-size: 1rem;
    flex: 1;
    min-width: 150px;
}

.no-ocs {
    color: var(--color-text-secondary);
}