:root {
    --bg: #f6f7f9;
    --surface: #ffffff;
    --surface-alt: #f0f2f5;
    --text: #1d2330;
    --muted: #5b6475;
    --border: #d9dde4;
    --accent: #1f5fbf;
    --accent-text: #ffffff;
    --focus: #f0a500;
    --header-bg: #1d2330;
    --header-text: #ffffff;
    --novel-bg: #fde8e7;
    --novel-text: #9b1c14;
    --not-novel-bg: #e3f4e8;
    --not-novel-text: #1b6b34;
    --additive-bg: #e7eefc;
    --additive-text: #1f4f99;
    --other-bg: #eceef2;
    --other-text: #3d4555;
    --info-bg: #e7eefc;
    --warn-bg: #fff4d6;
    --radius: 6px;
    --wrap: 1280px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #12151b;
        --surface: #1a1f27;
        --surface-alt: #222833;
        --text: #e6e9ef;
        --muted: #a0a8b8;
        --border: #333b48;
        --accent: #7fb0ff;
        --accent-text: #0d1320;
        --header-bg: #0b0d11;
        --novel-bg: #4a1d1b;
        --novel-text: #ffb4ad;
        --not-novel-bg: #173a24;
        --not-novel-text: #9fe0b2;
        --additive-bg: #1c2d4d;
        --additive-text: #a9c6ff;
        --other-bg: #2a303b;
        --other-text: #cfd5df;
        --info-bg: #1c2d4d;
        --warn-bg: #43380f;
    }
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

[hidden] {
    display: none !important;
}

html {
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

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

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

.wrap {
    max-width: var(--wrap);
    margin: 0 auto;
    padding: 0 16px;
}

.skip-link {
    position: absolute;
    left: -9999px;
}

.skip-link:focus {
    left: 16px;
    top: 8px;
    z-index: 10;
    padding: 8px 12px;
    background: var(--surface);
}

.site-header {
    background: var(--header-bg);
    color: var(--header-text);
}

.site-header .wrap {
    padding-top: 12px;
    padding-bottom: 12px;
}

.brand {
    color: inherit;
    font-weight: 700;
    letter-spacing: 0.02em;
    text-decoration: none;
}

main {
    padding-top: 24px;
    padding-bottom: 48px;
}

h1 {
    margin: 0 0 8px;
    font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2rem);
    line-height: 1.2;
}

.lead,
.meta,
.muted {
    color: var(--muted);
}

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

.site-footer {
    border-top: 1px solid var(--border);
    color: var(--muted);
    font-size: 0.875rem;
    padding: 16px 0 32px;
}

/* Home */

.cards {
    list-style: none;
    margin: 24px 0 0;
    padding: 0;
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr));
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 20px;
}

.card h2 {
    margin: 0 0 8px;
    font-size: 1.15rem;
}

.card p {
    margin: 0;
    color: var(--muted);
}

/* Messages: processing / error */

.message {
    max-width: 640px;
    margin: 48px auto;
    text-align: center;
}

.spinner {
    width: 40px;
    height: 40px;
    margin: 0 auto 16px;
    border: 4px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.processing.failed .spinner {
    display: none;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

@media (prefers-reduced-motion: reduce) {
    .spinner {
        animation-duration: 4s;
    }
}

/* NFR page */

.page-head {
    margin-bottom: 16px;
}

.banner {
    margin: 0 0 16px;
    padding: 10px 14px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.banner-info {
    background: var(--info-bg);
}

.banner-warn {
    background: var(--warn-bg);
}

.about {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 10px 16px;
    margin-bottom: 16px;
}

.about summary {
    cursor: pointer;
    font-weight: 600;
}

.about p {
    max-width: 75ch;
}

.filters {
    display: grid;
    gap: 12px 16px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 16px;
}

.field {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}

.field-wide,
.filter-actions {
    grid-column: 1 / -1;
}

.field label {
    font-size: 0.875rem;
    font-weight: 600;
}

.field input,
.field select {
    width: 100%;
    font: inherit;
    color: inherit;
    padding: 8px 10px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.filter-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.result-count {
    margin: 0 auto 0 0;
    color: var(--muted);
    font-size: 0.9rem;
}

.button {
    font: inherit;
    padding: 6px 14px;
    border-radius: var(--radius);
    border: 1px solid var(--accent);
    background: var(--accent);
    color: var(--accent-text);
    cursor: pointer;
    text-decoration: none;
}

.button-quiet {
    background: transparent;
    color: var(--accent);
}

.js .js-hidden {
    display: none;
}

.table-wrap {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.records {
    width: 100%;
    border-collapse: collapse;
}

.records th,
.records td {
    padding: 12px;
    text-align: left;
    vertical-align: top;
    border-bottom: 1px solid var(--border);
}

.records thead th {
    position: sticky;
    top: 0;
    z-index: 1;
    background: var(--surface-alt);
    font-size: 0.875rem;
}

.records tbody th {
    width: 25%;
    font-weight: 600;
}

.records td:nth-child(2) {
    width: 18%;
}

.records tbody tr:target {
    background: var(--warn-bg);
}

.records tbody tr:last-child > * {
    border-bottom: 0;
}

.outcomes {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.tag {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 0.85rem;
    line-height: 1.4;
    background: var(--other-bg);
    color: var(--other-text);
}

.tag-novel {
    background: var(--novel-bg);
    color: var(--novel-text);
    font-weight: 600;
}

.tag-not-novel {
    background: var(--not-novel-bg);
    color: var(--not-novel-text);
    font-weight: 600;
}

.tag-additive {
    background: var(--additive-bg);
    color: var(--additive-text);
}

sup {
    line-height: 0;
}

sup.fn a {
    text-decoration: none;
    padding: 0 2px;
}

.notes {
    list-style: none;
    margin: 10px 0 0;
    padding: 8px 0 0;
    border-top: 1px dashed var(--border);
    color: var(--muted);
    font-size: 0.875rem;
}

.notes li:target {
    background: var(--warn-bg);
}

.empty {
    margin: 0;
    padding: 24px;
    text-align: center;
    color: var(--muted);
}

/* Narrow screens: one card per entry instead of a three-column table. */
@media (max-width: 760px) {
    .filters {
        grid-template-columns: minmax(0, 1fr);
    }

    .records thead {
        position: absolute;
        width: 1px;
        height: 1px;
        overflow: hidden;
        clip-path: inset(50%);
    }

    .records,
    .records tbody,
    .records tr,
    .records tbody th,
    .records td {
        display: block;
        width: auto !important;
    }

    .records tr {
        padding: 8px 0;
        border-bottom: 1px solid var(--border);
    }

    .records tbody th,
    .records td {
        border: 0;
        padding: 4px 16px;
    }

    .records td::before {
        content: attr(data-label);
        display: block;
        font-size: 0.75rem;
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 0.04em;
        color: var(--muted);
        margin-bottom: 2px;
    }
}