:root {
    --radius: 6px;
    --radius-sm: 4px;
    font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
}

* {
    box-sizing: border-box;
}

html,
body {
    min-height: 100%;
}

body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background:
        radial-gradient(1100px 420px at 50% -140px, var(--bg-accent), transparent 68%),
        var(--bg);
    color: var(--text);
}

.site-footer {
    margin-top: auto;
    padding: 0.75rem 1.15rem;
    border-top: 1px solid var(--border);
    color: var(--muted);
    font-size: 0.8rem;
    text-align: center;
}

.site-footer p {
    margin: 0;
    line-height: 1.45;
}

.skip-link {
    position: absolute;
    left: 0.85rem;
    top: -3rem;
    z-index: 20;
    padding: 0.4rem 0.65rem;
    background: var(--accent);
    color: var(--on-accent);
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
}

.skip-link:focus {
    top: 0.6rem;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

a {
    color: var(--link);
}

a:hover {
    color: var(--link-hover);
}

.site-footer-link {
    display: inline-block;
    margin-left: 0.15rem;
    padding: 0.12rem 0.5rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface);
    color: var(--muted);
    font-weight: 600;
    font-size: 0.78rem;
    letter-spacing: 0.01em;
    text-decoration: none;
    vertical-align: baseline;
}

.site-footer-link:hover {
    color: var(--badge-text);
    background: var(--badge-bg);
    border-color: var(--accent);
}

.icon {
    display: block;
    width: 1.05rem;
    height: 1.05rem;
    flex-shrink: 0;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.5rem 1.15rem;
    background: var(--header-bg);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 5;
    backdrop-filter: blur(16px);
}

.topbar-search {
    display: grid;
    grid-template-columns: 1fr minmax(0, 760px) 1fr;
    align-items: center;
    column-gap: 0.85rem;
}

.brand {
    display: inline-flex;
    align-items: center;
    justify-self: start;
    text-decoration: none;
    color: var(--text);
}

.brand:hover {
    color: var(--text);
}

.brand-logo {
    display: block;
    height: 2rem;
    width: auto;
}

.topbar-nav {
    display: flex;
    align-items: center;
    justify-self: end;
    gap: 0.2rem;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--muted);
    text-decoration: none;
    padding: 0.38rem;
    border-radius: var(--radius-sm);
}

.nav-link:hover,
.nav-link[aria-current="page"] {
    color: var(--text);
    background: var(--card);
}

.search-form {
    display: flex;
    gap: 0.4rem;
    width: min(640px, 100%);
}

.search-field {
    position: relative;
    display: flex;
    flex: 1;
    align-items: center;
    min-width: 0;
}

.search-form input[type="search"] {
    flex: 1;
    width: 100%;
    padding: 0.58rem 2.6rem 0.58rem 0.85rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.95rem;
    background: var(--input-bg);
    color: var(--text);
}

.home-form .search-form input[type="search"],
.home-form input[type="search"] {
    padding: 0.7rem 2.6rem 0.7rem 0.95rem;
}

.search-submit-icon {
    position: absolute;
    right: 0.28rem;
    top: 50%;
    transform: translateY(-50%);
    width: 2rem;
    height: 2rem;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 0;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--muted);
    cursor: pointer;
}

.search-submit-icon:hover {
    color: var(--text);
    background: var(--card);
}

.home-form.search-form {
    width: min(640px, 100%);
}

.suggest-list {
    position: absolute;
    top: calc(100% + 0.22rem);
    left: 0;
    right: 0;
    z-index: 20;
    margin: 0;
    padding: 0.22rem 0;
    list-style: none;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.suggest-list[hidden] {
    display: none;
}

.suggest-list li {
    padding: 0.42rem 0.85rem;
    color: var(--text);
    font-size: 0.92rem;
    cursor: pointer;
}

.suggest-list li.is-active,
.suggest-list li:hover {
    background: var(--surface);
}

.search-form input[type="search"]::placeholder {
    color: var(--muted);
}

.search-form input[type="search"]:focus,
.settings-form input:focus,
.settings-form button:focus,
.search-form button:focus,
.nav-link:focus-visible,
.tab:focus-visible {
    outline: 2px solid var(--focus);
    outline-offset: 2px;
}

.search-form button,
.settings-form button {
    padding: 0.58rem 0.95rem;
    border: 0;
    border-radius: var(--radius);
    background: var(--accent);
    color: var(--on-accent);
    font-weight: 650;
    font-size: 0.95rem;
    cursor: pointer;
}

.search-form button:hover,
.settings-form button:hover {
    background: var(--accent-hover);
}

.search-form .search-submit-icon {
    width: 2rem;
    height: 2rem;
    padding: 0;
    background: transparent;
    color: var(--muted);
    font-weight: 600;
}

.search-form .search-submit-icon:hover {
    background: var(--card);
    color: var(--text);
}

.topbar .search-form {
    width: 100%;
    max-width: none;
    justify-self: stretch;
}

.home {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2.5rem 1.15rem 3.5rem;
}

.home-panel {
    width: min(640px, 100%);
    text-align: center;
}

.home-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.7rem;
}

.home-logo {
    display: block;
    height: 3.4rem;
    width: auto;
}

.home-title {
    margin: 0;
    font-size: 2.75rem;
    letter-spacing: -0.05em;
    font-weight: 750;
}

.tagline {
    margin: 0.7rem 0 1.25rem;
    color: var(--muted);
    line-height: 1.45;
    font-size: 0.98rem;
}

.home-form {
    margin: 0 auto;
}

.settings {
    width: min(820px, calc(100% - 2rem));
    margin: 1.35rem auto 2.5rem;
    flex: 1;
}

.settings-intro h1 {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    margin: 0 0 0.3rem;
    letter-spacing: -0.03em;
    font-size: 1.45rem;
}

.settings-intro h1 .icon {
    width: 1.2rem;
    height: 1.2rem;
    color: var(--muted);
}

.settings-intro p,
.section-help {
    color: var(--muted);
    line-height: 1.45;
}

.banner {
    margin: 0.85rem 0 0;
    padding: 0.55rem 0.8rem;
    border-radius: var(--radius);
    background: var(--danger-bg);
    color: var(--danger-text);
    font-weight: 600;
    font-size: 0.92rem;
}

.settings-section {
    margin: 1.1rem 0 0;
    padding: 0.95rem 1rem 1.05rem;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.settings-section h2 {
    margin: 0;
    font-size: 1rem;
}

.settings-section-compact {
    padding: 0.7rem 1rem 0.8rem;
}

.settings-section-compact .section-help {
    margin-bottom: 0.5rem;
}

.section-help {
    margin: 0.25rem 0 0.85rem;
    font-size: 0.88rem;
}

.engine-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 0.55rem;
}

.engine-card {
    display: flex;
    gap: 0.55rem;
    align-items: flex-start;
    padding: 0.7rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    cursor: pointer;
}

.engine-card:has(input:checked) {
    border-color: var(--accent);
    box-shadow: inset 0 0 0 1px var(--accent);
}

.engine-card input {
    margin-top: 0.15rem;
}

.engine-card-body {
    display: flex;
    flex-wrap: wrap;
    gap: 0.2rem 0.4rem;
    align-items: center;
}

.engine-name {
    font-weight: 700;
}

.engine-pill {
    font-size: 0.68rem;
    font-weight: 700;
    padding: 0.08rem 0.38rem;
    border-radius: var(--radius-sm);
    background: var(--badge-bg);
    color: var(--badge-text);
}

.engine-desc {
    flex: 1 1 100%;
    color: var(--muted);
    font-size: 0.82rem;
    line-height: 1.35;
}

.toggle {
    display: flex;
    gap: 0.65rem;
    align-items: flex-start;
    margin: 0.7rem 0 0;
    cursor: pointer;
}

.toggle input {
    margin-top: 0.25rem;
}

.toggle strong {
    display: block;
}

.toggle-help {
    display: block;
    margin-top: 0.15rem;
    color: var(--muted);
    font-size: 0.84rem;
    line-height: 1.35;
}

.choice-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem 0.95rem;
}

.choice {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    cursor: pointer;
}

.form-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem;
    margin-top: 1.15rem;
}

.back-link {
    color: var(--muted);
    text-decoration: none;
    font-weight: 600;
}

.back-link:hover {
    color: var(--text);
    text-decoration: underline;
}

.results {
    width: min(760px, calc(100% - 2rem));
    margin: 1rem auto 2.5rem;
    flex: 1;
}

.results-images {
    width: min(1100px, calc(100% - 2rem));
}

.category-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.2rem;
    margin: 0 0 0.9rem;
    padding: 0.18rem;
    width: fit-content;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.tab {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.32rem 0.7rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    color: var(--muted);
    font-weight: 600;
    font-size: 0.9rem;
    border: 1px solid transparent;
}

.tab .icon {
    width: 0.95rem;
    height: 0.95rem;
}

a.tab:hover {
    color: var(--text);
    background: var(--card);
}

.tab.current {
    background: var(--accent);
    color: var(--on-accent);
    border-color: transparent;
}

.infobox {
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.85rem;
    margin: 0 0 0.95rem;
}

.infobox-image {
    max-width: 200px;
    max-height: 160px;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
    background: var(--surface);
}

.infobox-title {
    font-size: 1.12rem;
    font-weight: 700;
    color: var(--link);
    text-decoration: none;
}

.infobox-title:hover {
    text-decoration: underline;
}

.infobox-hero {
    margin: 0.2rem 0 0;
    font-size: 1.7rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    font-variant-numeric: tabular-nums;
    line-height: 1.15;
    color: var(--text);
}

.infobox-extract {
    margin: 0.3rem 0 0;
    line-height: 1.45;
    color: var(--text);
    font-size: 0.95rem;
}

.infobox-facts {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.2rem 0.85rem;
    margin: 0.45rem 0 0;
    font-size: 0.86rem;
}

.infobox-facts dt {
    color: var(--muted);
    font-weight: 600;
}

.infobox-facts dd {
    margin: 0;
    color: var(--text);
}

.infobox-source {
    margin: 0.35rem 0 0;
    color: var(--muted);
    font-size: 0.75rem;
    font-weight: 600;
}

.image-grid {
    list-style: none;
    padding: 0;
    margin: 0.75rem 0 0;
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    gap: 0.35rem;
}

.image-card {
    display: flex;
}

.image-card-open {
    display: block;
    margin: 0;
    padding: 0;
    background: transparent;
    border: 0;
    cursor: pointer;
    line-height: 0;
}

.image-card-open:hover img,
.image-card-open.is-open img {
    outline: 2px solid var(--accent);
    outline-offset: 1px;
}

.image-card img {
    display: block;
    height: 120px;
    width: auto;
    max-width: 210px;
    object-fit: contain;
    background: transparent;
}

.image-preview {
    width: min(960px, calc(100% - 2rem));
    max-height: calc(100% - 2rem);
    padding: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--card);
    color: var(--text);
    box-shadow: var(--shadow);
}

.image-preview::backdrop {
    background: var(--backdrop);
}

.preview-sheet {
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
    padding: 0.75rem 0.85rem 0.95rem;
}

.preview-close {
    align-self: flex-end;
    width: 2rem;
    height: 2rem;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 0;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--muted);
    font-size: 1.35rem;
    font-weight: 500;
    line-height: 1;
    cursor: pointer;
}

.preview-close:hover {
    color: var(--text);
    background: var(--surface);
}

.preview-stage {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 0.4rem;
}

.preview-image {
    width: 100%;
    min-height: 200px;
    max-height: min(70vh, 640px);
    object-fit: contain;
    background: var(--surface);
    border-radius: var(--radius-sm);
}

.preview-image.is-loading {
    opacity: 0;
}

.preview-nav {
    width: 2.1rem;
    height: 2.1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    color: var(--text);
    font-size: 1.25rem;
    line-height: 1;
    cursor: pointer;
}

.preview-nav:hover {
    border-color: var(--accent);
}

.preview-meta {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.preview-heading {
    margin: 0;
    font-size: 1rem;
}

.preview-url {
    margin: 0;
    color: var(--url);
    font-size: 0.86rem;
    overflow-wrap: anywhere;
}

.preview-visit {
    align-self: flex-start;
    margin-top: 0.2rem;
    padding: 0.38rem 0.7rem;
    border-radius: var(--radius);
    background: var(--accent);
    color: var(--on-accent);
    text-decoration: none;
    font-weight: 650;
    font-size: 0.9rem;
}

.preview-visit:hover {
    background: var(--accent-hover);
    color: var(--on-accent);
}

.notice,
.meta {
    color: var(--muted);
    font-size: 0.9rem;
}

.result-list {
    list-style: none;
    padding: 0;
    margin: 0.7rem 0 0;
}

.result {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.75rem 0.9rem;
    margin-bottom: 0.55rem;
}

.result:hover {
    border-color: color-mix(in srgb, var(--accent) 50%, var(--border));
}

.result-title {
    color: var(--link);
    font-size: 1.05rem;
    font-weight: 650;
    text-decoration: none;
}

.result-title:hover {
    color: var(--link-hover);
    text-decoration: underline;
}

.result-url {
    color: var(--url);
    font-size: 0.84rem;
    margin: 0.12rem 0 0.25rem;
}

.result-snippet {
    margin: 0;
    color: var(--muted);
    line-height: 1.45;
    font-size: 0.92rem;
}

.source-badges {
    margin: 0.4rem 0 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
}

.source-badge {
    display: inline-block;
    padding: 0.1rem 0.4rem;
    border-radius: var(--radius-sm);
    background: var(--badge-bg);
    color: var(--badge-text);
    font-size: 0.7rem;
    font-weight: 600;
}

a.archive-badge {
    background: transparent;
    border: 1px solid var(--accent);
    color: var(--link);
    text-decoration: none;
}

a.archive-badge:hover {
    background: var(--accent);
    color: var(--on-accent);
}

.pagination {
    display: flex;
    flex-wrap: wrap;
    gap: 0.28rem;
    margin: 1.15rem 0 0;
}

.pagination a,
.pagination span {
    min-width: 2rem;
    text-align: center;
    padding: 0.32rem 0.45rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: var(--card);
    text-decoration: none;
    color: var(--link);
    font-weight: 600;
    font-size: 0.9rem;
}

.pagination a:hover {
    border-color: var(--accent);
}

.pagination span.current {
    background: var(--accent);
    color: var(--on-accent);
    border-color: var(--accent);
}

@media (max-width: 720px) {
    .home-title {
        font-size: 2.1rem;
    }

    .home-logo {
        height: 2.6rem;
    }

    .topbar-search {
        display: grid;
        grid-template-columns: 1fr auto;
        grid-template-areas:
            "brand nav"
            "form form";
        row-gap: 0.55rem;
        column-gap: 0.55rem;
    }

    .topbar-search .brand {
        grid-area: brand;
    }

    .topbar-search .search-form {
        grid-area: form;
    }

    .topbar-search .topbar-nav {
        grid-area: nav;
        justify-self: end;
    }

    .infobox {
        flex-direction: column;
        align-items: stretch;
    }

    .infobox-image {
        max-width: 100%;
        align-self: center;
    }

    .preview-stage {
        grid-template-columns: 1fr 1fr;
        grid-template-areas:
            "image image"
            "prev next";
    }

    .preview-image {
        grid-area: image;
        max-height: 50vh;
    }

    .preview-prev {
        grid-area: prev;
        justify-self: start;
    }

    .preview-next {
        grid-area: next;
        justify-self: end;
    }
}