:root {
    --bg: #f5f7fa;
    --surface: #ffffff;
    --border: #d9e1ea;
    --border-strong: #c6d1dd;
    --ink: #17202a;
    --muted: #5e6b78;
    --faint: #eef3f7;
    --teal: #0f766e;
    --teal-soft: #dff5f2;
    --violet: #6f4fe6;
    --violet-soft: #eeeafd;
    --amber: #b45309;
    --amber-soft: #fff4d6;
    --red: #b42318;
    --red-soft: #ffe4e0;
    --blue: #1d4ed8;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background:
        linear-gradient(180deg, #ffffff 0, var(--bg) 300px),
        var(--bg);
    color: var(--ink);
    font-family:  Segoe UI, Arial, Helvetica, sans-serif;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}
a {
    color: var(--blue);
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    width: min(1440px, calc(100% - 32px));
    min-height: 64px;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    margin: 0 auto;
    border-bottom: 1px solid rgba(198, 209, 221, 0.86);
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(18px);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    color: var(--ink);
    font-weight: 500;
    text-decoration: none;
}

.brand span {
    display: inline-flex;
    height: 38px;
    width: 38px;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border-radius: 999px;
    background: var(--violet-soft);
    box-shadow: 0 4px 12px rgba(23, 32, 42, 0.045), inset 0 0 0 1px rgba(23, 32, 42, 0.08);
}

.brand img {
    display: block;
    height: 100%;
    width: 100%;
    object-fit: cover;
}

.brand strong {
    font-size: 15px;
    letter-spacing: 0;
}

.topbar nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 8px;
}

.topbar nav a {
    border-radius: 8px;
    color: #374151;
    font-size: 13px;
    font-weight: 500;
    padding: 7px 10px;
    text-decoration: none;
}

.topbar nav a:hover,
.topbar nav a[aria-current="page"] {
    background: var(--ink);
    color: #fff;
}

.shell {
    width: min(1440px, calc(100% - 32px));
    margin: 0 auto;
    padding: 30px 0 60px;
}

.intro {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 20px;
    align-items: stretch;
    margin-bottom: 20px;
}

.eyebrow {
    margin: 0 0 8px;
    color: var(--teal);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

h1,
h2 {
    margin: 0;
    line-height: 1.05;
    letter-spacing: 0;
}

h1 {
    max-width: 820px;
    font-size: clamp(32px, 4.1vw, 52px);
    font-weight: 580;
}

h2 {
    font-size: 20px;
    font-weight: 560;
}

.intro-copy {
    max-width: 760px;
    margin: 14px 0 0;
    color: var(--muted);
    font-size: 16px;
    line-height: 1.65;
}

.signal-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 20px;
}

.signal-strip span,
.panel-note,
.score-panel__top span,
.score-hints span {
    border: 1px solid var(--border);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.76);
    color: #334155;
    font-size: 12px;
    font-weight: 500;
    padding: 6px 9px;
}

.method,
.panel,
.summary {
    border: 1px solid rgba(198, 209, 221, 0.92);
    border-radius: 8px;
    background: var(--surface);
    box-shadow: 0 8px 24px rgba(23, 32, 42, 0.045);
}

.method {
    display: grid;
    align-content: space-between;
    min-height: 100%;
    padding: 17px;
    background:
        linear-gradient(135deg, rgba(223, 245, 242, 0.7), rgba(238, 234, 253, 0.72)),
        #ffffff;
}

.method span,
.method small {
    display: block;
    color: var(--muted);
}

.method strong {
    display: block;
    margin: 6px 0;
}

.method-metrics {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
    margin-top: 18px;
}

.method-metrics div {
    border: 1px solid rgba(198, 209, 221, 0.9);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.7);
    padding: 9px;
}

.method-metrics b,
.method-metrics span {
    display: block;
}

.method-metrics b {
    color: var(--ink);
    font-size: 18px;
    line-height: 1;
}

.method-metrics span {
    margin-top: 5px;
    color: var(--muted);
    font-size: 11px;
    font-weight: 500;
    text-transform: uppercase;
}

.tool-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 18px;
}

.panel,
.summary {
    padding: 18px;
}

.panel-head,
.score-panel__top {
    display: flex;
    align-items: start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
}

.panel-head .eyebrow,
.score-panel__top .eyebrow {
    margin-bottom: 5px;
}

label {
    display: grid;
    gap: 8px;
    color: var(--muted);
    font-size: 13px;
    font-weight: 500;
}

.url-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 154px;
    gap: 10px;
}

input,
button,
.summary-actions a {
    min-height: 42px;
    border-radius: 8px;
    font: inherit;
}

input {
    width: 100%;
    border: 1px solid var(--border-strong);
    background: #fbfdff;
    padding: 0 12px;
    color: var(--ink);
    outline: none;
}

input:focus {
    border-color: var(--teal);
    box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.14);
}

button,
.summary-actions a {
    border: 1px solid #0b5f59;
    background: var(--teal);
    color: #fff;
    cursor: pointer;
    font-weight: 500;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 14px;
    transition: transform 160ms ease, background 160ms ease, box-shadow 160ms ease;
}

button:hover,
.summary-actions a:hover {
    background: #0b5f59;
    box-shadow: 0 8px 18px rgba(15, 118, 110, 0.13);
    transform: translateY(-1px);
}

.controls {
    display: grid;
    grid-template-columns: 150px 150px repeat(2, minmax(150px, 1fr));
    gap: 12px;
    align-items: end;
    margin-top: 16px;
}

.checkbox {
    display: flex;
    min-height: 42px;
    align-items: center;
    gap: 10px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: #fbfdff;
    padding: 0 12px;
}

.checkbox input {
    width: 18px;
    min-height: 18px;
}

.form-help {
    margin: 14px 0 0;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.55;
}

.status {
    margin-top: 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: #fbfdff;
    color: var(--muted);
    padding: 12px;
    font-size: 13px;
}

.loading .status {
    color: var(--teal);
}

.progress-wrap {
    margin-top: 16px;
}

.progress-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    color: var(--muted);
    font-size: 13px;
    font-weight: 500;
}

.progress-head strong {
    color: var(--ink);
}

.progress-track {
    height: 10px;
    margin-top: 8px;
    overflow: hidden;
    border-radius: 999px;
    background: var(--faint);
    box-shadow: inset 0 0 0 1px rgba(23, 32, 42, 0.04);
}

.progress-track i {
    display: block;
    width: 0;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--teal), #22c55e, var(--violet));
    transition: width 420ms ease;
}

.loading .progress-track i {
    background-size: 36px 36px;
    background-image: linear-gradient(45deg, rgba(255,255,255,0.22) 25%, transparent 25%, transparent 50%, rgba(255,255,255,0.22) 50%, rgba(255,255,255,0.22) 75%, transparent 75%, transparent);
    animation: progress-stripes 900ms linear infinite;
}

@keyframes progress-stripes {
    from {
        background-position: 0 0;
    }
    to {
        background-position: 36px 0;
    }
}

.score-panel {
    display: grid;
    align-content: start;
    background:
        linear-gradient(180deg, rgba(238, 234, 253, 0.55), rgba(255, 255, 255, 0) 170px),
        #ffffff;
}

.score {
    font-size: 64px;
    font-weight: 500;
    line-height: 1;
}

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

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

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

.score-meta {
    margin: 8px 0 16px;
    color: var(--muted);
}

.bar-row {
    display: grid;
    grid-template-columns: 82px minmax(0, 1fr) 36px;
    gap: 10px;
    align-items: center;
    margin-top: 10px;
    font-size: 13px;
}

.bar {
    height: 9px;
    overflow: hidden;
    border-radius: 999px;
    background: var(--faint);
}

.bar i {
    display: block;
    height: 100%;
}

.good {
    background: var(--teal);
}

.warn {
    background: var(--amber);
}

.bad {
    background: var(--red);
}

.summary {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(360px, 0.8fr);
    gap: 18px;
    margin-top: 18px;
}

.summary-actions {
    grid-column: 1 / -1;
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

.score-hints {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 18px;
}

.recommendations ul {
    margin: 12px 0 0;
    padding-left: 20px;
    color: var(--muted);
    line-height: 1.6;
}

.resource-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin-top: 12px;
}

.resource-grid div {
    border: 1px solid var(--border);
    border-radius: 8px;
    background: #fbfdff;
    padding: 11px;
}

.resource-grid span,
.resource-grid small {
    display: block;
    color: var(--muted);
}

.resource-grid strong.ok {
    color: var(--teal);
}

.resource-grid strong.miss {
    color: var(--amber);
}

.resource-grid p {
    margin: 7px 0 0;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.45;
}

.resources h2 span {
    color: var(--teal);
    font-size: 16px;
}

.resource-grid em {
    display: inline-flex;
    margin-top: 7px;
    margin-right: 5px;
    border-radius: 999px;
    background: var(--teal-soft);
    color: var(--teal);
    padding: 3px 7px;
    font-size: 11px;
    font-style: normal;
    font-weight: 500;
}

.resource-grid em.warning {
    background: var(--amber-soft);
    color: var(--amber);
}

.methodology,
.issue-codes,
.robots,
.quick-wins,
.agent-assets {
    grid-column: 1 / -1;
}

.quick-win-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin-top: 12px;
}

.quick-win-grid article {
    border: 1px solid var(--border);
    border-left: 5px solid var(--teal);
    border-radius: 8px;
    background: #fbfdff;
    padding: 12px;
}

.quick-win-grid span {
    display: block;
    color: var(--teal);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.quick-win-grid strong {
    display: block;
    margin-top: 6px;
}

.quick-win-grid p {
    margin: 7px 0 0;
    color: var(--muted);
    line-height: 1.5;
}

.asset-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin-top: 12px;
}

.asset-grid textarea {
    min-height: 250px;
    width: 100%;
    resize: vertical;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: #fbfdff;
    color: var(--ink);
    font: 12px/1.55 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    padding: 12px;
}

.robots-grid {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 10px;
    margin-top: 12px;
}

.robots-grid article {
    border: 1px solid var(--border);
    border-radius: 8px;
    background: #fbfdff;
    padding: 12px;
}

.robots-grid span {
    display: block;
    color: var(--muted);
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
}

.robots-grid strong {
    display: block;
    margin-top: 5px;
    font-size: 18px;
}

.robots-columns {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin-top: 12px;
}

.robots-columns div {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px;
}

.robots-columns h3 {
    margin: 0 0 10px;
    font-size: 15px;
}

.robots-columns ul {
    margin: 0;
    padding-left: 18px;
    color: var(--muted);
    line-height: 1.55;
}

.robots-columns li + li {
    margin-top: 6px;
}

.robots-columns span {
    overflow-wrap: anywhere;
}

.llm-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
    margin-top: 12px;
}

.llm-grid article {
    border: 1px solid var(--border);
    border-radius: 8px;
    background: #fbfdff;
    padding: 9px;
}

.llm-grid article.blocked {
    border-color: #fecaca;
    background: #fff1f0;
}

.llm-grid article.allowed {
    border-color: #bfe8e2;
    background: #f2fbf9;
}

.llm-grid strong,
.llm-grid span,
.llm-grid small {
    display: block;
}

.llm-grid span {
    margin-top: 5px;
    color: var(--muted);
    font-size: 12px;
    font-weight: 500;
}

.llm-grid small {
    margin-top: 5px;
    color: var(--muted);
    line-height: 1.35;
}

.method-grid,
.code-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin-top: 12px;
}

.method-grid article,
.code-grid article {
    border: 1px solid var(--border);
    border-radius: 8px;
    background: #fbfdff;
    padding: 12px;
}

.method-grid strong,
.code-grid strong {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    color: var(--ink);
}

.method-grid p,
.code-grid p,
.code-grid small {
    display: block;
    margin: 7px 0 0;
    color: var(--muted);
    line-height: 1.45;
}

.code-grid strong span {
    border-radius: 999px;
    background: #e8edf3;
    color: var(--muted);
    padding: 2px 7px;
    font-size: 12px;
}

.section-head {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: end;
    margin-bottom: 16px;
}

#issues,
#pages-panel {
    margin-top: 18px;
}

#issue-filter {
    width: min(360px, 100%);
}

.issue-list {
    display: grid;
    gap: 10px;
}

.issue {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 92px;
    gap: 8px 14px;
    border: 1px solid var(--border);
    border-left-width: 5px;
    border-radius: 8px;
    background: #fff;
    padding: 12px;
}

.issue.critical {
    border-left-color: var(--red);
    background: var(--red-soft);
}

.issue.major {
    border-left-color: var(--amber);
    background: var(--amber-soft);
}

.issue a,
td a {
    display: block;
    overflow-wrap: anywhere;
}

.issue span,
.pill {
    align-self: start;
    border-radius: 999px;
    padding: 4px 8px;
    color: #fff;
    font-size: 12px;
    font-weight: 500;
    text-align: center;
}

.issue small {
    grid-column: 1 / -1;
    color: var(--muted);
}

.issue p {
    grid-column: 1 / -1;
    margin: 0;
    color: #374151;
    line-height: 1.5;
}

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

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 980px;
}

th,
td {
    border-bottom: 1px solid var(--border);
    padding: 12px 10px;
    text-align: left;
    vertical-align: top;
}

th {
    background: #fbfdff;
    color: var(--muted);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

td small {
    display: block;
    margin-top: 4px;
    color: var(--muted);
}

.pill {
    display: inline-block;
    min-width: 42px;
}

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

@media (max-width: 920px) {
    .topbar {
        align-items: flex-start;
        flex-direction: column;
        padding: 12px 0;
    }

    .topbar nav {
        justify-content: flex-start;
    }

    .intro,
    .tool-grid,
    .summary {
        grid-template-columns: 1fr;
    }

    .controls {
        grid-template-columns: 1fr;
    }

    .method-metrics {
        grid-template-columns: 1fr;
    }

    .method-grid,
    .code-grid,
    .resource-grid,
    .quick-win-grid,
    .asset-grid,
    .llm-grid,
    .robots-grid,
    .robots-columns {
        grid-template-columns: 1fr;
    }

    .url-row {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 560px) {
    .shell,
    .topbar {
        width: min(100% - 20px, 1440px);
    }

    .shell {
        padding-top: 22px;
    }

    .panel,
    .summary,
    .method {
        padding: 16px;
    }

    h1 {
        font-size: 34px;
    }

    .intro-copy {
        font-size: 16px;
    }

    .topbar nav a {
        padding: 8px 9px;
    }
}