:root {
    --bg: #ffffff;
    --panel: #ffffff;
    --ink: #111111;
    --muted: #666666;
    --line: #d7d7d7;
    --accent: #003c78;
    --match: #176b3a;
    --nonmatch: #9b2c2c;
    --unknown: #8a5a00;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: Arial, Helvetica, sans-serif;
}

.shell {
    width: min(1040px, calc(100% - 36px));
    margin: 0 auto;
    padding: 46px 0 28px;
}

.masthead {
    margin-bottom: 24px;
}

.brand {
    color: var(--ink);
    text-decoration: none;
    font-family: "Courier New", Courier, monospace;
    font-weight: 700;
    font-size: clamp(1.9rem, 4vw, 3rem);
    letter-spacing: -0.03em;
}

.tagline {
    margin-top: 5px;
    color: var(--muted);
    font-size: 1rem;
}

.search-form {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 10px;
}

.search-form input {
    width: 100%;
    border: 2px solid #2a2a27;
    background: #fff;
    color: var(--ink);
    border-radius: 2px;
    padding: 14px 14px;
    font-family: Helvetica, Arial, sans-serif;
    font-size: 1rem;
    outline: none;
}

.search-form input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(21, 62, 117, 0.12);
}

.search-form button {
    border: 1px solid #999;
    border-radius: 2px;
    padding: 0 22px;
    background: #e5e5e5;
    color: #111;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
}

.syntax-note {
    margin: 8px 2px 26px;
    color: var(--muted);
    font-family: Consolas, 'Courier New', monospace;
    font-size: 0.85rem;
}

.error-box {
    border: 1px solid #d89a9a;
    border-left: 5px solid var(--nonmatch);
    background: #fffafa;
    padding: 15px 18px;
    border-radius: 6px;
    display: grid;
    gap: 5px;
}

.summary-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 14px;
}

.filter {
    border: 1px solid var(--line);
    background: var(--panel);
    color: var(--ink);
    padding: 9px 12px;
    border-radius: 2px;
    cursor: pointer;
    font-weight: 700;
}

.filter span {
    color: var(--muted);
    margin-left: 4px;
}

.filter.active {
    background: #222;
    border-color: #222;
    color: #fff;
}

.filter.active span { color: #ddd; }

.search-details {
    background: #f5f5f5;
    border: 1px solid var(--line);
    border-radius: 2px;
    padding: 12px 14px;
    margin-bottom: 24px;
}

.search-details summary,
.why summary {
    cursor: pointer;
    font-weight: 700;
}

.detail-grid {
    display: grid;
    gap: 14px;
    margin-top: 14px;
}

.detail-label {
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 5px;
}

code {
    font-family: Consolas, 'Courier New', monospace;
    background: #f1f1f1;
    border-radius: 2px;
    padding: 2px 5px;
}

code.branch {
    display: block;
    width: fit-content;
    margin: 4px 0;
}

.disclosure {
    color: var(--muted);
    margin: 14px 0 2px;
    font-size: 0.9rem;
}

.results {
    display: grid;
    gap: 0;
}

.result {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 0;
    padding: 16px 0 15px;
    border-left: 0;
    border-right: 0;
}

.result[hidden] { display: none; }

.result-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 12px;
    margin-bottom: 7px;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.035em;
}

.status { font-weight: 800; }
.status-match { color: var(--match); }
.status-index_match { color: var(--match); }
.status-nonmatch { color: var(--nonmatch); }
.status-index_nonmatch { color: var(--nonmatch); }
.status-unknown { color: var(--unknown); }
.score, .evidence { color: var(--muted); }

.result h2 {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 1.28rem;
    font-weight: 700;
    line-height: 1.2;
    margin: 0 0 4px;
}

.result h2 a {
    color: var(--accent);
    text-decoration: none;
}

.result h2 a:hover { text-decoration: underline; }

.url {
    color: #35704a;
    font-size: 0.86rem;
    overflow-wrap: anywhere;
}

.description {
    line-height: 1.45;
    margin: 9px 0 10px;
}

.provenance,
.failure-note {
    color: var(--muted);
    font-size: 0.86rem;
    margin-top: 8px;
}

.failure-note {
    color: var(--unknown);
}

.why {
    border-top: 1px solid #ecece7;
    margin-top: 13px;
    padding-top: 10px;
}

.logic-list,
.rank-list {
    margin: 10px 0 0;
    padding-left: 22px;
    font-family: Consolas, 'Courier New', monospace;
    font-size: 0.86rem;
    line-height: 1.55;
}

.rank-heading {
    margin-top: 15px;
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
}

footer {
    color: var(--muted);
    border-top: 1px solid var(--line);
    margin-top: 34px;
    padding-top: 18px;
    font-size: 0.85rem;
}

@media (max-width: 680px) {
    .shell {
        width: min(100% - 22px, 1040px);
        padding-top: 24px;
    }

    .search-form {
        grid-template-columns: 1fr;
    }

    .search-form button {
        padding: 13px 18px;
    }
}

/* v1.2.1 polish */
.brand-row {
    display: flex;
    align-items: baseline;
    gap: 10px;
}

.version {
    color: var(--muted);
    font-family: Consolas, 'Courier New', monospace;
    font-size: 0.75rem;
}

.result {
}

.result:hover {
    border-color: #bdbdbd;
    box-shadow: none;
}

.url-line {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 6px 10px;
    font-size: 0.86rem;
}

.domain {
    color: #2f6844;
    font-weight: 700;
}

.url {
    color: var(--muted);
    font-size: 0.78rem;
}

.why > summary {
    color: #333;
}

.logic-list {
    list-style: none;
    padding-left: 0;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 0.9rem;
    line-height: 1.55;
}

.logic-list li {
    padding: 2px 0;
}

.logic-list li:last-child {
    margin-top: 5px;
    padding-top: 7px;
    border-top: 1px solid #ecece7;
    font-weight: 700;
}

.ranking-details {
    margin-top: 13px;
    color: var(--muted);
    font-size: 0.82rem;
}

.ranking-details > summary {
    font-weight: 600;
}

.rank-list {
    margin-top: 8px;
}

/* v1.2.7 centered masthead/search refinement */
.masthead {
    text-align: center;
}

.brand-row {
    justify-content: center;
}

.search-form {
    width: min(820px, 100%);
    margin-left: auto;
    margin-right: auto;
}

.syntax-note {
    text-align: center;
}


/* v1.2.7 utility-button refinement */
.search-form button:hover {
    background: #d8d8d8;
}

.search-form button:active {
    background: #cccccc;
}

.advanced-search {
    width: min(820px, 100%);
    margin: 0 auto 24px;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    padding: 10px 0;
}

.advanced-search > summary {
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 700;
}

.advanced-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px 18px;
    margin-top: 14px;
}

.advanced-grid label span {
    display: block;
    margin-bottom: 5px;
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 700;
}

.advanced-grid input {
    width: 100%;
    border: 1px solid #aaa;
    border-radius: 2px;
    padding: 9px 10px;
    font-family: Helvetica, Arial, sans-serif;
    font-size: 0.92rem;
}

.advanced-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 14px;
    color: var(--muted);
    font-size: 0.82rem;
}

.advanced-actions button {
    border: 1px solid #999;
    border-radius: 2px;
    background: #e5e5e5;
    color: #111;
    padding: 7px 12px;
    cursor: pointer;
    font-weight: 700;
}

@media (max-width: 680px) {
    .advanced-grid {
        grid-template-columns: 1fr;
    }
    .advanced-actions {
        align-items: flex-start;
        flex-direction: column;
    }
}

/* v1.4.0 license filter prototype */
.license-picker {
    margin: 16px 0 0;
    padding: 12px 0 0;
    border: 0;
    border-top: 1px solid var(--line);
}

.license-picker legend {
    padding: 0 8px 0 0;
    font-size: 0.82rem;
    font-weight: 700;
}

.license-shortcut {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    margin: 8px 0 12px;
    font-weight: 700;
    font-size: 0.9rem;
}

.license-columns {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 18px;
}

.license-columns label {
    display: flex;
    align-items: center;
    gap: 7px;
    margin: 6px 0;
    font-size: 0.86rem;
}

.license-group-title {
    margin-bottom: 7px;
    color: var(--muted);
    font-size: 0.76rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.license-note {
    margin-top: 9px;
    color: var(--muted);
    font-size: 0.76rem;
    line-height: 1.35;
}

.license-evidence {
    margin-top: 7px;
    color: var(--muted);
    font-size: 0.8rem;
}

.license-badge {
    display: inline-block;
    margin-left: 5px;
    border: 1px solid #b8b8b8;
    padding: 1px 5px;
    color: #333;
    background: #f7f7f7;
    font-family: Consolas, 'Courier New', monospace;
    font-size: 0.76rem;
}

@media (max-width: 760px) {
    .license-columns {
        grid-template-columns: 1fr;
    }
}


/* v1.5.0: make bounded retrieval explicit without adding visual chrome. */
.candidate-summary {
    max-width: 1100px;
    margin: 22px auto 8px;
    font-size: 14px;
    color: #333;
}

.retrieval-stop {
    margin-top: 4px;
    color: #555;
    font-size: 13px;
}


/* v1.5.1: optional local 80s logo. Courier remains the default. */
.brand-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}

.eighties-logo {
    display: inline-block;
    text-decoration: none;
    line-height: 0;
}

.eighties-logo[hidden],
.brand[hidden] {
    display: none !important;
}

.eighties-logo img {
    display: block;
    max-width: min(520px, 80vw);
    max-height: 120px;
    width: auto;
    height: auto;
}

.logo-toggle {
    display: block;
    margin: 8px auto 0;
    padding: 2px 6px;
    border: 1px solid #aaa;
    border-radius: 2px;
    background: #fff;
    color: #555;
    font: 12px Arial, Helvetica, sans-serif;
    cursor: pointer;
}

.logo-toggle:hover {
    background: #f2f2f2;
    color: #111;
}