:root {
    color-scheme: light;
    --bg: #f4f6f8;
    --surface: #fff;
    --text: #17212b;
    --muted: #66717d;
    --border: #d8dee4;
    --accent: #1463d6;
    --accent-dark: #0f4fae;
    --good: #167647;
    --good-bg: #e5f6ed;
    --bad: #b42318;
    --bad-bg: #feeceb;
    --warning: #8a5700;
    --warning-bg: #fff5d6;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.45;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); }
a { color: var(--accent); text-underline-offset: 2px; }
a:hover { color: var(--accent-dark); }
h1, h2 { line-height: 1.15; margin-top: 0; }
h1 { font-size: clamp(1.65rem, 4vw, 2.1rem); }
h2 { font-size: 1.2rem; }
p { margin: .5rem 0 1rem; }

.topbar { min-height: 64px; padding: .75rem max(1rem, calc((100vw - 1180px) / 2)); display: flex; align-items: center; gap: 1.4rem; background: #152638; color: #fff; }
.topbar a { color: #fff; text-decoration: none; }
.brand { font-size: 1.2rem; font-weight: 750; white-space: nowrap; }
.topbar nav { display: flex; gap: 1rem; flex: 1; }
.topbar form { margin: 0; }
.link-button { background: none; border: 0; color: #dfe8f1; padding: .4rem; font: inherit; cursor: pointer; }

.container { width: min(1180px, calc(100% - 2rem)); margin: 2rem auto 4rem; }
.container--narrow { width: min(440px, calc(100% - 2rem)); margin-top: 10vh; }
.page-heading, .section-heading { display: flex; align-items: start; justify-content: space-between; gap: 1rem; }
.page-heading { margin-bottom: 1.25rem; }
.page-heading h1, .section-heading h2 { margin-bottom: .25rem; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 1.25rem; margin-bottom: 1.25rem; box-shadow: 0 1px 2px rgb(20 32 44 / 5%); }
.card--flush { padding: 0; overflow: hidden; }
.login-card { padding: 1.75rem; }
.muted, .help { color: var(--muted); }
.help { font-size: .875rem; margin: .35rem 0; }
.padded { padding: 1.25rem; }
.empty { color: var(--muted); }

.notice { padding: .8rem 1rem; margin-bottom: 1rem; border: 1px solid; border-radius: 6px; }
.notice--success { color: var(--good); background: var(--good-bg); border-color: #9dd8b8; }
.notice--error { color: var(--bad); background: var(--bad-bg); border-color: #f0aaa5; }
.notice--warning { color: var(--warning); background: var(--warning-bg); border-color: #e7ca7e; }
.notice--info { color: #174f86; background: #eaf4ff; border-color: #a7cbee; }

.stats { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1rem; margin-bottom: 1.25rem; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 1rem; }
.stat span { display: block; color: var(--muted); font-size: .875rem; }
.stat strong { display: block; font-size: 2rem; margin-top: .25rem; }
.stat--good strong { color: var(--good); }
.stat--bad strong { color: var(--bad); }

form { margin: 0; }
label { display: block; font-weight: 650; margin: 0 0 .35rem; }
input, select, textarea { width: 100%; border: 1px solid #aeb8c2; border-radius: 5px; padding: .62rem .7rem; background: #fff; color: var(--text); font: inherit; }
textarea { resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 3px solid rgb(20 99 214 / 20%); border-color: var(--accent); }
.form-grid, .filter-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.filter-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.filter-help { margin: -.25rem 0 0; }
.dashboard-heading-actions { display: flex; align-items: center; gap: .75rem; }
.dashboard-client-picker select { width: auto; min-width: 190px; }
.dashboard-client-picker noscript { display: inline-block; }
.full { grid-column: 1 / -1; }
.field-error { color: var(--bad); font-size: .875rem; margin: .35rem 0 0; }
.check-label { display: inline-flex; align-items: center; gap: .5rem; font-weight: 500; }
.check-label input { width: auto; }
.tier-picker { border: 0; padding: 0; margin: 0; }
.tier-picker legend { font-weight: 700; margin-bottom: .55rem; }
.tier-option { display: grid; grid-template-columns: auto 1fr; gap: .7rem; padding: .9rem; margin-bottom: .65rem; border: 1px solid var(--border); border-radius: 7px; cursor: pointer; font-weight: 400; }
.tier-option:has(input:checked) { border-color: var(--accent); box-shadow: 0 0 0 2px rgb(20 99 214 / 12%); background: #f8fbff; }
.tier-option input { width: auto; margin-top: .25rem; }
.tier-option strong, .tier-option small { display: block; }
.tier-option small { margin-top: .3rem; color: var(--muted); line-height: 1.45; }
.tier-price { margin-left: .35rem; color: var(--accent-dark); font-weight: 750; }
.recipient-summary { margin: .65rem 0 0; padding: .65rem .75rem; border-radius: 5px; background: #f1f4f6; overflow-wrap: anywhere; font-size: .9rem; }
.recipient-summary .badge { margin-left: .35rem; }
.settings-tier-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.settings-tier-card { min-width: 0; margin: 0; padding: 1rem; border: 1px solid var(--border); border-radius: 7px; }
.settings-tier-card legend { padding: 0 .25rem; font-weight: 750; }
.settings-tier-card label:not(:first-of-type) { margin-top: 1rem; }
.money-input { display: grid; grid-template-columns: auto 1fr; align-items: center; border: 1px solid #aeb8c2; border-radius: 5px; background: #fff; }
.money-input span { padding-left: .7rem; color: var(--muted); }
.money-input input { border: 0; }
.billing-controls { display: flex; align-items: end; justify-content: space-between; gap: 1rem; }
.billing-controls form { align-items: end; }
.snapshot-summary { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; }
.snapshot-summary span { display: block; color: var(--muted); font-size: .82rem; }
.snapshot-summary strong { display: block; margin-top: .3rem; }
.snapshot-summary strong .badge { display: inline-block; color: inherit; font-size: .78rem; }
.billing-table tfoot th { background: #eef2f5; color: var(--text); font-size: .85rem; }
.billing-months { text-align: center; }
.pagespeed-option { padding: .85rem; border: 1px solid var(--border); border-radius: 7px; background: #f8fafb; }
.settings-status-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; margin-bottom: 1rem; }
.settings-status-grid > div { padding: .8rem; border: 1px solid var(--border); border-radius: 6px; }
.settings-status-grid span, .score-card span { display: block; color: var(--muted); font-size: .82rem; }
.settings-status-grid strong { display: block; margin-top: .35rem; }
.settings-status-grid strong .badge { display: inline-block; color: inherit; }
.pagespeed-configuration-note { margin-top: 1rem; }
.points-input { display: grid; grid-template-columns: minmax(0, 10rem) auto; align-items: center; gap: .6rem; }
.points-input span { color: var(--muted); }
.pagespeed-result-heading { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin: 1rem 0; }
.pagespeed-strategies { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.pagespeed-strategy { min-width: 0; padding: 1rem; border: 1px solid var(--border); border-radius: 7px; }
.pagespeed-strategy h3 { margin: 0; font-size: 1rem; }
.score-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .55rem; margin-top: .8rem; }
.score-card { min-width: 0; padding: .65rem; border-radius: 5px; background: #f1f4f6; }
.score-card strong { display: block; margin-top: .25rem; font-size: 1.45rem; }
.pagespeed-history td:nth-child(3), .pagespeed-history td:nth-child(4) { white-space: nowrap; }

button, .button { display: inline-block; border: 1px solid var(--accent); border-radius: 5px; padding: .58rem .9rem; background: var(--accent); color: #fff; font: inherit; font-weight: 650; text-decoration: none; cursor: pointer; }
button:hover, .button:hover { background: var(--accent-dark); color: #fff; }
.button--secondary { background: #fff; color: var(--accent); }
.button--small { padding: .38rem .65rem; font-size: .875rem; }
.button--danger { background: var(--bad); border-color: var(--bad); }
.actions { display: flex; align-items: center; flex-wrap: wrap; gap: .75rem; }
.actions--compact { gap: .55rem; white-space: nowrap; }
.standalone-action { margin-top: .75rem; }
.danger-zone { border: 1px solid #efb2ad; border-radius: 8px; padding: 1.25rem; margin-top: 2rem; background: #fffafa; }

.table-scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .925rem; }
th, td { padding: .72rem .75rem; text-align: left; vertical-align: top; border-bottom: 1px solid var(--border); }
th { color: #4f5d6b; font-size: .8rem; text-transform: uppercase; letter-spacing: .025em; background: #f7f9fa; }
tbody tr:last-child td { border-bottom: 0; }
.small-url { display: inline-block; max-width: 330px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: .83rem; }
.error-detail { max-width: 340px; overflow-wrap: anywhere; }
.badge { display: inline-block; border-radius: 999px; padding: .18rem .55rem; font-weight: 700; font-size: .78rem; }
.badge--good { color: var(--good); background: var(--good-bg); }
.badge--bad { color: var(--bad); background: var(--bad-bg); }
.badge--neutral { color: #56616c; background: #e9edf0; }
.badge--primary { color: #174f86; background: #e1f0ff; }
.pagination { display: flex; justify-content: center; align-items: center; gap: 1rem; margin: 1.5rem 0; }

@media (max-width: 820px) {
    .topbar { align-items: flex-start; flex-wrap: wrap; gap: .75rem 1rem; }
    .topbar nav { order: 3; flex-basis: 100%; overflow-x: auto; }
    .topbar form { margin-left: auto; }
    .stats { grid-template-columns: repeat(2, 1fr); }
    .filter-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .billing-controls { align-items: stretch; flex-direction: column; }
    .snapshot-summary, .settings-status-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .score-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 540px) {
    .container { width: min(100% - 1rem, 1180px); margin-top: 1rem; }
    .page-heading, .section-heading { display: block; }
    .section-heading .actions { margin-top: .75rem; }
    .dashboard-heading-actions { align-items: stretch; flex-direction: column; margin-top: .75rem; }
    .dashboard-client-picker select { width: 100%; }
    .dashboard-heading-actions .button { text-align: center; }
    .stats, .form-grid, .filter-grid, .settings-tier-grid, .snapshot-summary, .settings-status-grid, .pagespeed-strategies { grid-template-columns: 1fr; }
    .pagespeed-result-heading { align-items: flex-start; flex-direction: column; }
    .stat strong { font-size: 1.55rem; }
    .card { padding: 1rem; }
}