html {
    color-scheme: light;
}

:root {
    --bg: #fdfdfd;
    --surface: #ffffff;
    --surface-2: #f4f4f8;
    --text: #223344;
    --heading: #223344;
    --subheading: #334455;
    --muted: #66717d;
    --link: #2471a3;
    --link-hover: #f09228;
    --accent: #f09228;
    --border: #d6dbdf;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-strong: rgba(0, 0, 0, 0.18);
    --overlay: rgba(0, 0, 0, 0.72);
    --button-bg: #363636;
    --button-text: #ffffff;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme]) {
        color-scheme: dark;
        --bg: #101418;
        --surface: #171d22;
        --surface-2: #20272e;
        --text: #d7dee6;
        --heading: #f0f4f8;
        --subheading: #d7dee6;
        --muted: #9ba8b5;
        --link: #7ab8e8;
        --link-hover: #f3a953;
        --accent: #f3a953;
        --border: #33404a;
        --shadow: rgba(0, 0, 0, 0.32);
        --shadow-strong: rgba(0, 0, 0, 0.45);
        --overlay: rgba(6, 10, 14, 0.78);
        --button-bg: #25303a;
        --button-text: #f0f4f8;
    }
}

:root[data-theme="dark"] {
    color-scheme: dark;
    --bg: #101418;
    --surface: #171d22;
    --surface-2: #20272e;
    --text: #d7dee6;
    --heading: #f0f4f8;
    --subheading: #d7dee6;
    --muted: #9ba8b5;
    --link: #7ab8e8;
    --link-hover: #f3a953;
    --accent: #f3a953;
    --border: #33404a;
    --shadow: rgba(0, 0, 0, 0.32);
    --shadow-strong: rgba(0, 0, 0, 0.45);
    --overlay: rgba(6, 10, 14, 0.78);
    --button-bg: #25303a;
    --button-text: #f0f4f8;
}

body.theme-page {
    background: var(--bg) !important;
    color: var(--text);
}

body.theme-page.theme-viewer {
    background: #080810 !important;
    color: #ffffff;
}

body.theme-page a {
    color: var(--link);
}

body.theme-page a:hover,
body.theme-page a:focus {
    color: var(--link-hover);
}

body.theme-page name,
body.theme-page h1,
body.theme-page h2,
body.theme-page h3,
body.theme-page h4,
body.theme-page h5,
body.theme-page .title,
body.theme-page .section-name {
    color: var(--heading) !important;
}

body.theme-page .subtitle,
body.theme-page #institution-list,
body.theme-page #publication,
body.theme-page .section-content-text,
body.theme-page .content,
body.theme-page .root-content,
body.theme-page label {
    color: var(--text) !important;
}

body.theme-page #author-list {
    color: var(--link) !important;
}

body.theme-page [style*="background-color: #f5f5f5"],
body.theme-page [style*="background-color:#f5f5f5"],
body.theme-page [style*="background-color: #f1f1f1"],
body.theme-page [style*="background-color:#f1f1f1"],
body.theme-page [style*="background-color: white"],
body.theme-page [style*="background-color:white"] {
    background-color: var(--surface-2) !important;
}

body.theme-page [style*="color: gray"],
body.theme-page [style*="color:gray"],
body.theme-page [style*="color: darkgray"],
body.theme-page [style*="color:darkgray"],
body.theme-page [style*="color:brown"],
body.theme-page [style*="color: brown"] {
    color: var(--muted) !important;
}

body.theme-page .navbar,
body.theme-page .navbar-menu,
body.theme-page .navbar-dropdown {
    background: var(--surface) !important;
    border-color: var(--border) !important;
}

body.theme-page .navbar-item,
body.theme-page .navbar-link {
    color: var(--text) !important;
}

body.theme-page .navbar-item:hover,
body.theme-page .navbar-link:hover,
body.theme-page .navbar-item:focus,
body.theme-page .navbar-link:focus {
    background: var(--surface-2) !important;
    color: var(--accent) !important;
}

body.theme-page .link-button,
body.theme-page .btn:not(.theme-toggle),
body.theme-page .method-button,
body.theme-page .play-pause-button,
body.theme-page .scene-button {
    background: var(--button-bg) !important;
    border-color: transparent !important;
    color: var(--button-text) !important;
}

body.theme-page .link-button-content,
body.theme-page .link-button a {
    color: var(--button-text) !important;
}

body.theme-page .btn:not(.theme-toggle):hover,
body.theme-page .btn:not(.theme-toggle).active,
body.theme-page .method-button:hover,
body.theme-page .method-button.active,
body.theme-page .play-pause-button:hover,
body.theme-page .scene-button.active {
    background: var(--accent) !important;
    color: #101418 !important;
}

body.theme-page .bibtex,
body.theme-page pre {
    background: var(--surface-2) !important;
    color: var(--text) !important;
    border: 2px solid var(--surface);
}

body.theme-page .method-selector,
body.theme-page .video-selector,
body.theme-page .filter-controls,
body.theme-page .readme-box,
body.theme-page #highlight,
body.theme-page #regionTag,
body.theme-page #readme,
body.theme-page #info:hover {
    background: var(--overlay) !important;
    color: #ffffff !important;
}

body.theme-page.compare-page {
    min-height: 100vh;
}

button.theme-toggle {
    position: fixed !important;
    left: calc(100vw - 64px) !important;
    right: auto !important;
    bottom: 22px !important;
    width: 42px;
    height: 42px;
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    border-radius: 50%;
    background: var(--surface) !important;
    color: var(--text) !important;
    box-shadow: 0 6px 18px var(--shadow-strong);
    cursor: pointer;
    font: inherit;
    z-index: 2147483000;
    opacity: 1 !important;
    visibility: visible !important;
    -webkit-appearance: none;
    appearance: none;
}

button.theme-toggle:hover,
button.theme-toggle:focus-visible {
    background: var(--surface-2) !important;
    color: var(--link) !important;
    border-color: var(--link);
}

button.theme-toggle:focus-visible {
    outline: 2px solid var(--link);
    outline-offset: 3px;
}

button.theme-toggle .theme-toggle-icon {
    font-size: 20px;
    line-height: 1;
}

button.theme-toggle::after {
    content: attr(data-label);
    position: absolute;
    right: 50%;
    bottom: calc(100% + 8px);
    transform: translateX(50%);
    background: var(--surface);
    color: var(--text);
    border-radius: 4px;
    padding: 2px 6px;
    font-size: 12px;
    line-height: 1.2;
    white-space: nowrap;
    box-shadow: 0 0 4px var(--shadow);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

button.theme-toggle:hover::after,
button.theme-toggle:focus-visible::after {
    opacity: 1;
}

.floating-actions {
    position: fixed;
    right: 22px;
    bottom: 22px;
    z-index: 2147483000;
    display: flex;
    align-items: center;
    gap: 10px;
}

.floating-actions button.theme-toggle,
.floating-actions button.comment-toggle {
    position: relative !important;
    left: auto !important;
    right: auto !important;
    bottom: auto !important;
    width: 42px;
    height: 42px;
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    border-radius: 50%;
    background: var(--surface) !important;
    color: var(--text) !important;
    box-shadow: 0 6px 18px var(--shadow-strong);
    cursor: pointer;
    font: inherit;
    opacity: 1 !important;
    visibility: visible !important;
    -webkit-appearance: none;
    appearance: none;
}

.floating-actions button.theme-toggle:hover,
.floating-actions button.theme-toggle:focus-visible,
.floating-actions button.comment-toggle:hover,
.floating-actions button.comment-toggle:focus-visible {
    background: var(--surface-2) !important;
    color: var(--link) !important;
    border-color: var(--link);
}

.floating-actions button.theme-toggle:focus-visible,
.floating-actions button.comment-toggle:focus-visible,
.comment-panel-close:focus-visible {
    outline: 2px solid var(--link);
    outline-offset: 3px;
}

.floating-actions .theme-toggle-icon,
.floating-actions .comment-toggle-icon {
    font-size: 18px;
    font-weight: 700;
    line-height: 1;
}

button.comment-toggle::after {
    content: attr(data-label);
    position: absolute;
    right: 50%;
    bottom: calc(100% + 8px);
    transform: translateX(50%);
    background: var(--surface);
    color: var(--text);
    border-radius: 4px;
    padding: 2px 6px;
    font-size: 12px;
    line-height: 1.2;
    white-space: nowrap;
    box-shadow: 0 0 4px var(--shadow);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

button.comment-toggle:hover::after,
button.comment-toggle:focus-visible::after {
    opacity: 1;
}

.comment-panel {
    position: fixed;
    right: 22px;
    bottom: 78px;
    z-index: 2147482999;
    width: min(420px, calc(100vw - 44px));
    max-height: min(640px, calc(100vh - 110px));
    display: none;
    flex-direction: column;
    overflow: hidden;
    background: var(--surface);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: 0 18px 50px var(--shadow-strong);
}

.comment-panel.open {
    display: flex;
}

.comment-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
}

.comment-panel-title {
    color: var(--heading);
    font-size: 14px;
    font-weight: 700;
}

.comment-panel-subtitle {
    color: var(--muted);
    font-size: 12px;
    margin-top: 2px;
}

.comment-panel-close {
    width: 30px;
    height: 30px;
    border: 1px solid var(--border);
    border-radius: 50%;
    background: var(--surface-2);
    color: var(--text);
    cursor: pointer;
    font: inherit;
    line-height: 1;
}

.comment-panel-body {
    min-height: 260px;
    overflow: auto;
    padding: 16px;
}

.comment-panel-status {
    color: var(--muted);
    font-size: 13px;
    margin-bottom: 12px;
}

.comment-panel-status:empty {
    display: none;
}

.comment-panel-status.error {
    color: #b3261e;
}

@media (max-width: 768px) {
    body.theme-page .root-content,
    body.theme-page .section-content {
        box-sizing: border-box;
        width: 100% !important;
        padding-left: 16px;
        padding-right: 16px;
    }

    body.theme-page .comparison-container {
        width: 100vw;
        height: 56.25vw;
        max-height: 70vh;
        margin-left: 0;
        margin-right: 0;
    }

    body.theme-page button.theme-toggle {
        left: calc(100vw - 56px) !important;
        right: auto !important;
        bottom: 16px !important;
        width: 40px;
        height: 40px;
    }

    .floating-actions {
        right: 16px;
        bottom: 16px;
    }

    body.theme-page .floating-actions button.theme-toggle {
        position: relative !important;
        left: auto !important;
        right: auto !important;
        bottom: auto !important;
        width: 40px;
        height: 40px;
    }

    body.theme-page .floating-actions button.comment-toggle {
        position: relative !important;
        left: auto !important;
        right: auto !important;
        bottom: auto !important;
        width: 40px;
        height: 40px;
    }

    .comment-panel {
        left: 16px;
        right: 16px;
        bottom: 70px;
        width: auto;
        max-height: 72vh;
        border-radius: 8px;
    }
}