:root {
    color-scheme: light;
    --bg: #f4f7f5;
    --surface: #ffffff;
    --surface-muted: #eef4f0;
    --text: #14201a;
    --muted: #64756b;
    --line: #d8e2dc;
    --brand: #147a4b;
    --brand-dark: #0f5d3a;
    --accent: #255e8a;
    --warning: #a96500;
    --danger: #b42318;
    --ok: #16704a;
    --shadow: 0 18px 48px rgba(18, 38, 30, 0.1);
}

* {
    box-sizing: border-box;
}

html {
    background: var(--bg);
}

body {
    margin: 0;
    color: var(--text);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.5;
}

.page-shell {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    padding: 32px 0 56px;
}

.hero {
    padding: 34px 0 24px;
}

.eyebrow {
    margin: 0 0 8px;
    color: var(--brand);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

h1,
h2 {
    letter-spacing: 0;
}

h1 {
    max-width: 780px;
    margin: 0;
    font-size: clamp(2.2rem, 5vw, 4.4rem);
    line-height: 0.98;
}

.hero-copy {
    max-width: 720px;
    margin: 18px 0 0;
    color: var(--muted);
    font-size: 1.08rem;
}

.tool-panel,
.card,
.summary-card,
.alert {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.tool-panel {
    padding: 22px;
}

label {
    display: block;
    margin-bottom: 9px;
    font-weight: 800;
}

.input-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 12px;
}

input[type="url"] {
    width: 100%;
    min-height: 50px;
    padding: 0 14px;
    color: var(--text);
    background: #fbfdfc;
    border: 1px solid #bdcbc3;
    border-radius: 6px;
    font: inherit;
}

input[type="url"]:focus {
    outline: 3px solid rgba(20, 122, 75, 0.18);
    border-color: var(--brand);
}

button {
    min-height: 50px;
    padding: 0 20px;
    color: #ffffff;
    background: var(--brand);
    border: 1px solid var(--brand);
    border-radius: 6px;
    font: inherit;
    font-weight: 800;
    cursor: pointer;
}

button:hover,
button:focus {
    background: var(--brand-dark);
    border-color: var(--brand-dark);
}

.hint {
    margin: 12px 0 0;
    color: var(--muted);
    font-size: 0.92rem;
}

.alert-list {
    display: grid;
    gap: 10px;
    margin-top: 18px;
}

.alert {
    padding: 14px 16px;
    color: var(--danger);
    background: #fff5f3;
    border-color: #f1b7af;
    box-shadow: none;
    font-weight: 700;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    margin-top: 22px;
}

.summary-card {
    display: grid;
    gap: 2px;
    padding: 18px;
}

.summary-card strong {
    font-size: 2rem;
    line-height: 1.05;
}

.summary-card span {
    color: var(--muted);
}

.summary-label {
    color: var(--text) !important;
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.score-good {
    border-color: rgba(22, 112, 74, 0.35);
}

.score-good strong {
    color: var(--ok);
}

.score-warn {
    border-color: rgba(169, 101, 0, 0.35);
}

.score-warn strong {
    color: var(--warning);
}

.score-bad {
    border-color: rgba(180, 35, 24, 0.35);
}

.score-bad strong {
    color: var(--danger);
}

.results-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 18px;
    margin-top: 18px;
    align-items: start;
}

.results-main,
.results-side {
    display: grid;
    gap: 18px;
}

.card {
    padding: 20px;
    overflow: hidden;
}

.card h2 {
    margin: 0 0 14px;
    font-size: 1.18rem;
}

.card-header {
    display: flex;
    gap: 16px;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 14px;
}

.card-header h2 {
    margin: 0;
}

.card-header span {
    min-width: 0;
    color: var(--muted);
    font-size: 0.86rem;
    overflow-wrap: anywhere;
    text-align: right;
}

.table-wrap {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 760px;
}

th,
td {
    padding: 11px 10px;
    border-bottom: 1px solid var(--line);
    text-align: left;
    vertical-align: top;
}

th {
    color: var(--muted);
    background: var(--surface-muted);
    font-size: 0.76rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

td {
    font-size: 0.94rem;
}

.is-muted {
    color: var(--muted);
    background: #f9faf9;
}

.tag {
    display: inline-flex;
    min-width: 38px;
    justify-content: center;
    padding: 3px 8px;
    color: #ffffff;
    border-radius: 999px;
    font-size: 0.76rem;
    font-weight: 900;
}

.tag-h1 {
    background: #144c35;
}

.tag-h2 {
    background: #176b49;
}

.tag-h3 {
    background: #247b84;
}

.tag-h4 {
    background: #4b6b96;
}

.tag-h5 {
    background: #685a90;
}

.tag-h6 {
    background: #7a5970;
}

.heading-text {
    display: inline-block;
    overflow-wrap: anywhere;
}

.level-2 {
    padding-left: 14px;
}

.level-3 {
    padding-left: 28px;
}

.level-4 {
    padding-left: 42px;
}

.level-5 {
    padding-left: 56px;
}

.level-6 {
    padding-left: 70px;
}

.mini-badge {
    display: inline-block;
    margin-left: 8px;
    padding: 2px 7px;
    color: var(--warning);
    background: #fff6e8;
    border: 1px solid #f3d3a3;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 800;
}

.outline-export {
    max-height: 460px;
    overflow: auto;
    margin: 0;
    padding: 16px;
    color: #d8f3e3;
    background: #10241a;
    border-radius: 6px;
    font-size: 0.9rem;
    line-height: 1.55;
    white-space: pre-wrap;
}

.empty-state {
    margin: 0;
    color: var(--muted);
}

.meta-list {
    display: grid;
    gap: 9px;
    margin: 0;
}

.meta-list dt {
    color: var(--muted);
    font-size: 0.75rem;
    font-weight: 900;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.meta-list dd {
    margin: -5px 0 5px;
    overflow-wrap: anywhere;
}

.count-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.count-grid div {
    display: grid;
    gap: 2px;
    padding: 12px;
    background: var(--surface-muted);
    border: 1px solid var(--line);
    border-radius: 6px;
    text-align: center;
}

.count-grid span {
    color: var(--muted);
    font-size: 0.76rem;
    font-weight: 900;
}

.count-grid strong {
    font-size: 1.45rem;
}

.issue-list {
    display: grid;
    gap: 10px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.issue-list li {
    display: grid;
    gap: 3px;
    padding: 12px;
    border-left: 4px solid var(--line);
    background: #f9fbfa;
    border-radius: 6px;
}

.issue-list strong {
    font-size: 0.94rem;
}

.issue-list span {
    color: var(--muted);
    font-size: 0.88rem;
}

.issue-critical {
    border-left-color: var(--danger) !important;
}

.issue-warning {
    border-left-color: var(--warning) !important;
}

.issue-notice {
    border-left-color: var(--accent) !important;
}

@media (max-width: 920px) {
    .results-layout,
    .summary-grid {
        grid-template-columns: 1fr;
    }

    .summary-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .page-shell {
        width: min(100% - 22px, 1180px);
        padding-top: 18px;
    }

    .hero {
        padding-top: 18px;
    }

    h1 {
        font-size: 2.25rem;
    }

    .input-row,
    .summary-grid {
        grid-template-columns: 1fr;
    }

    button {
        width: 100%;
    }

    .card,
    .tool-panel {
        padding: 16px;
    }

    .card-header {
        display: grid;
    }

    .card-header span {
        text-align: left;
    }
}