:root {
    --bg: #020605;
    --panel: rgba(10, 25, 19, 0.94);
    --line: rgba(148, 163, 184, 0.18);
    --line-strong: rgba(80, 235, 139, 0.34);
    --text: #f5f7f6;
    --muted: #aeb9b3;
    --soft: #dce7e1;
    --green: #31e274;
    --green-2: #89f7a9;
    --danger: #ff7f7f;
}

.validator-page {
    width: min(900px, calc(100% - 32px));
    margin: 0 auto;
    padding: 86px 0 52px;
}

.validator-shell { display: grid; gap: 28px; }
.validator-page [hidden] { display: none !important; }
.validator-shell .surface {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: linear-gradient(180deg, rgba(13, 28, 22, 0.92), rgba(7, 17, 13, 0.92));
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.38);
}
.validator-card { padding: 34px; }
.validator-heading { margin-bottom: 28px; text-align: center; }
.validator-heading .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 18px;
    padding: 8px 13px;
    border: 1px solid var(--line-strong);
    border-radius: 999px;
    background: rgba(49, 226, 116, 0.12);
    color: var(--green-2);
    font-size: .78rem;
    font-weight: 900;
}
.validator-card h1 {
    margin: 0;
    color: var(--text);
    font-size: clamp(2.4rem, 7vw, 4.9rem);
    line-height: .95;
    letter-spacing: -.045em;
    font-weight: 900;
}
.validator-card h1 span { color: var(--green-2); }
.validator-card .validator-heading > p {
    max-width: 680px;
    margin: 18px auto 0;
    color: var(--muted);
    font-size: 1.04rem;
    line-height: 1.65;
    text-align: center;
}
.validator-proof {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
    margin-top: 22px;
    color: #dbe6df;
    font-size: .9rem;
    font-weight: 850;
}
.validator-proof span { display: inline-flex; align-items: center; gap: 7px; }
.validator-proof i { color: var(--green); }
.validator-form { width: min(640px, 100%); margin: 0 auto; display: grid; gap: 16px; }
.validator-form .field label,
.validator-advanced label { display: block; margin-bottom: 10px; color: var(--soft); font-weight: 900; }
.validator-form textarea,
.validator-advanced textarea,
.validator-advanced input:not([type="checkbox"]),
.validator-advanced select {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(2, 8, 6, .72);
    color: var(--text);
    padding: 16px;
    font: 700 1rem/1.55 "JetBrains Mono", monospace;
    outline: none;
}
.validator-form textarea { min-height: 160px; resize: vertical; }
.validator-form textarea:focus,
.validator-advanced input:focus,
.validator-advanced textarea:focus {
    border-color: var(--green);
    box-shadow: 0 0 0 3px rgba(49, 226, 116, .12);
}
.primary-btn {
    width: min(310px, 100%);
    min-height: 54px;
    margin: 0 auto;
    border: 0;
    border-radius: 8px;
    background: linear-gradient(135deg, #2ccc67, #31e274);
    color: #031009;
    font-weight: 900;
    font-size: 1rem;
    cursor: pointer;
    box-shadow: 0 18px 48px rgba(49, 226, 116, .22);
}
.primary-btn:disabled { cursor: wait; opacity: .62; }
.result-panel { padding: 28px; }
.result-panel.is-hidden { display: none; }
.result-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.result-head h2 { margin: 0; color: var(--text); font-size: 1.18rem; font-weight: 900; }
.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 11px;
    border-radius: 999px;
    background: rgba(49, 226, 116, .12);
    color: var(--green-2);
    font: 800 .78rem/1 "JetBrains Mono", monospace;
    white-space: nowrap;
}
.status-pill.has-error { background: rgba(255, 127, 127, .12); color: var(--danger); }
.validation-results { display: grid; gap: 18px; margin-top: 22px; }
.validation-row {
    padding: 24px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(2, 9, 6, .55);
}
.validation-row.is-invalid { border-color: rgba(255, 127, 127, .3); }
.routing-line { display: grid; justify-items: center; gap: 10px; text-align: center; }
.routing-value {
    color: var(--text);
    border-bottom: 4px solid rgba(80, 235, 139, .45);
    font: 800 clamp(1.65rem, 5vw, 2.55rem)/1.1 "JetBrains Mono", monospace;
    overflow-wrap: anywhere;
}
.validation-row.is-invalid .routing-value { border-color: rgba(255, 127, 127, .55); }
.valid-badge,
.invalid-badge,
.neutral-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 11px;
    border-radius: 999px;
    font: 800 .78rem/1 "JetBrains Mono", monospace;
}
.valid-badge { background: rgba(49, 226, 116, .13); color: var(--green-2); }
.invalid-badge { background: rgba(255, 127, 127, .13); color: var(--danger); }
.neutral-badge { background: rgba(148, 163, 184, .13); color: var(--soft); }
.meta-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-top: 22px; }
.meta-box { min-width: 0; padding-top: 14px; border-top: 1px solid var(--line); text-align: center; }
.meta-box small { display: block; margin-bottom: 7px; color: var(--muted); font-size: .7rem; font-weight: 900; letter-spacing: .06em; text-transform: uppercase; }
.meta-box span { color: var(--text); font-weight: 800; overflow-wrap: anywhere; }
.source-list { margin: 18px 0 0; padding-top: 14px; border-top: 1px solid var(--line); }
.source-list summary { color: var(--soft); cursor: pointer; font-weight: 850; }
.source-list p { margin: 10px 0 0; color: var(--muted); font-size: .86rem; overflow-wrap: anywhere; }
.validator-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 18px; }
.validator-actions .btn-neo { min-height: 44px; }
.validator-advanced { width: min(640px, 100%); margin: 18px auto 0; border-top: 1px solid var(--line); padding-top: 16px; }
.validator-advanced > summary { cursor: pointer; color: var(--soft); font-weight: 900; text-align: center; }
.validator-advanced-content { display: grid; gap: 14px; margin-top: 18px; }
.validator-advanced input[type="file"] { font-family: Inter, sans-serif; }
.validator-advanced-content > input,
.validator-advanced-content > select { width: 100%; border: 1px solid var(--line); border-radius: 8px; background: rgba(2, 8, 6, .72); color: var(--text); padding: 12px; }
.validator-check { display: flex !important; align-items: center; gap: 9px; }
.validator-check input { width: 18px; height: 18px; accent-color: var(--green); }
.validator-note { margin: 14px auto 0; color: var(--muted); font-size: .9rem; line-height: 1.55; text-align: center; }
.validator-status { min-height: 1.5rem; margin: 14px 0 0; color: var(--muted); text-align: center; }
.validator-status .btn-neo { margin: 8px; }
.seo-content { padding: 30px; color: var(--muted); line-height: 1.75; }
.seo-content h2, .seo-content h3 { color: var(--text); line-height: 1.25; }
.seo-content h2 { margin-top: 0; }
.seo-content a { color: var(--green-2); }
.seo-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin: 20px 0; }
.seo-mini-card { padding: 18px; border: 1px solid var(--line); border-radius: 8px; background: rgba(2, 9, 6, .46); }
.seo-mini-card h3 { margin-top: 0; }

@media (max-width: 720px) {
    .validator-page { width: min(100% - 20px, 900px); padding-top: 34px; }
    .validator-card, .result-panel, .seo-content { padding: 20px; }
    .validator-card h1 { font-size: clamp(2.2rem, 14vw, 3.35rem); }
    .meta-grid, .seo-grid { grid-template-columns: 1fr; }
    .result-head { align-items: flex-start; }
}