:root {
  --navy: #0b1832;
  --navy-2: #172746;
  --blue: #2463eb;
  --blue-soft: #edf4ff;
  --paper: #fff;
  --bg: #f2f5fa;
  --line: #e3e8f1;
  --text: #111b30;
  --muted: #64728d;
  --green: #087443;
  --green-soft: #e7f6ef;
  --amber: #935d00;
  --amber-soft: #fff3d8;
  --red: #c83245;
  --red-soft: #fdecef;
  --radius: 19px;
  --shadow: 0 13px 30px rgba(18, 35, 65, .065);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
}
code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: .93em;
}
.shell { width: min(1320px, calc(100% - 48px)); margin: 0 auto; }
.site-header { background: var(--paper); border-bottom: 1px solid var(--line); }
.site-header__inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand__icon {
  display: grid; place-items: center; width: 42px; height: 42px;
  color: #fff; font-weight: 800; font-size: 21px;
  border-radius: 12px; background: linear-gradient(145deg, #1a438f, #2463eb);
}
.brand strong { display: block; letter-spacing: .085em; font-size: 15px; }
.brand span:not(.brand__icon) { display: block; color: var(--muted); font-size: 12px; margin-top: 3px; }
.header-badge { border: 1px solid var(--line); padding: 9px 13px; border-radius: 999px; color: var(--muted); font-size: 13px; }
.page { padding: 35px 0 60px; }
.hero { display: grid; grid-template-columns: minmax(430px, 1fr) 410px; gap: 22px; margin-bottom: 22px; }
.hero__content { padding: 21px 0 12px; }
.eyebrow {
  color: var(--blue); font-weight: 700; text-transform: uppercase;
  letter-spacing: .095em; font-size: 11px; margin: 0 0 9px;
}
h1 { font-size: clamp(34px, 4vw, 47px); line-height: 1.08; letter-spacing: -.052em; margin: 0 0 15px; }
h1 span { color: var(--blue); }
.hero__lead { font-size: 17px; line-height: 1.58; max-width: 760px; color: var(--muted); margin: 0; }
.hero__note, .panel {
  background: var(--paper); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow);
}
.hero__note { padding: 22px; }
.hero__note strong { font-size: 16px; display: block; margin-bottom: 14px; }
.hero__note p { color: var(--muted); font-size: 13px; line-height: 1.52; margin: 9px 0; }
.hero__note b { color: var(--text); }
.hero__note code { color: var(--blue); }
.panel { padding: 23px; }
.panel__head { display: flex; align-items: start; justify-content: space-between; gap: 20px; margin-bottom: 16px; }
.panel__head h2, .results-head h2 { font-size: 25px; letter-spacing: -.035em; margin: 0; }
.limit { color: var(--muted); background: #f5f7fb; border: 1px solid var(--line); border-radius: 999px; padding: 7px 11px; font-size: 12px; }
.domains-input {
  display: block; width: 100%; min-height: 130px; resize: vertical;
  border: 1px solid #d5ddea; border-radius: 13px; padding: 15px 16px;
  font: 15px/1.6 "SFMono-Regular", Consolas, monospace; color: var(--text); background: #fbfcff;
}
.domains-input:focus { outline: 2px solid #b9cef9; border-color: var(--blue); }
.scanner__actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.btn {
  appearance: none; border: 1px solid var(--line); background: #fff; color: var(--navy);
  border-radius: 10px; min-height: 44px; padding: 0 16px; cursor: pointer; font-weight: 650;
}
.btn:hover { border-color: #cbd5e8; background: #f8faff; }
.btn:disabled { opacity: .6; cursor: wait; }
.btn--primary { background: var(--blue); color: #fff; border-color: var(--blue); }
.btn--primary:hover { background: #1d54cc; border-color: #1d54cc; }
.btn--quiet { color: var(--muted); }
.btn--small { min-height: 40px; font-size: 13px; }
.progress { margin-top: 19px; }
.progress__line { height: 7px; background: #edf1f8; border-radius: 999px; overflow: hidden; }
.progress__line span { display: block; height: 100%; width: 0; background: var(--blue); transition: width .2s ease; }
.progress p { color: var(--muted); font-size: 13px; margin: 9px 0 0; }
.notice { margin-top: 14px; padding: 11px 13px; border-radius: 10px; font-size: 13px; }
.notice--error { color: var(--red); background: var(--red-soft); }
.notice--warning { color: var(--amber); background: var(--amber-soft); margin-bottom: 13px; }
.method {
  margin-top: 18px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 13px;
  padding: 15px; box-shadow: none;
}
.method__item { border-radius: 13px; background: #f7f9fc; padding: 14px 16px; }
.method__item strong { display: inline-flex; border-radius: 999px; padding: 5px 9px; font-size: 12px; margin-bottom: 8px; background: #e9eef7; color: var(--navy-2); }
.method__item--direct strong { color: var(--green); background: var(--green-soft); }
.method__item--reseller strong { color: var(--amber); background: var(--amber-soft); }
.method__item p { color: var(--muted); font-size: 13px; line-height: 1.48; margin: 0; }
#results { margin-top: 29px; }
.results-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 26px; margin-bottom: 19px; }
.subtext { color: var(--muted); font-size: 13px; line-height: 1.5; margin: 8px 0 0; max-width: 800px; }
.export-buttons { display: flex; gap: 8px; flex-shrink: 0; }
.summary-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 19px; }
.metric { background: var(--paper); border: 1px solid var(--line); border-radius: 15px; padding: 17px 18px; }
.metric__label { color: var(--muted); font-size: 13px; margin-bottom: 10px; }
.metric__value { display: block; font-size: 29px; letter-spacing: -.045em; }
.metric__hint { color: var(--muted); font-size: 12px; margin-top: 7px; }
.site-results { display: grid; gap: 18px; }
.site-card {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); overflow: hidden;
}
.site-card__head { padding: 23px; display: grid; grid-template-columns: minmax(300px, .9fr) 1.15fr; gap: 25px; align-items: center; }
.site-heading h3 { margin: 0; font-size: 25px; letter-spacing: -.04em; }
.site-heading h3 a { color: var(--text); text-decoration: none; }
.site-heading h3 a:hover { color: var(--blue); }
.site-url { margin: 7px 0 0; color: var(--muted); font-size: 12px; word-break: break-all; }
.site-stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px;
  background: #f7f9fd; border: 1px solid var(--line); border-radius: 13px; padding: 6px;
}
.site-stats div { padding: 11px 10px; border-radius: 9px; }
.site-stats span, .platform-stats span {
  display: block; color: var(--muted); font-size: 10px;
  text-transform: uppercase; letter-spacing: .065em; margin-bottom: 5px;
}
.site-stats strong { font-size: 22px; letter-spacing: -.035em; }
.site-card__body { border-top: 1px solid var(--line); padding: 21px 23px 24px; }
.ads-variables { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 15px; }
.ads-variables div {
  display: flex; flex-wrap: wrap; gap: 6px; align-items: center;
  border: 1px solid var(--line); background: #fbfcfe; padding: 8px 11px; border-radius: 9px;
}
.ads-variables span { font-size: 11px; font-weight: 700; color: var(--muted); margin-right: 5px; }
.ads-variables code { color: var(--navy-2); background: #edf2fa; padding: 3px 6px; border-radius: 5px; }
.site-explain {
  padding: 13px 15px; border-left: 3px solid var(--blue);
  border-radius: 0 10px 10px 0; background: var(--blue-soft); margin-bottom: 19px;
}
.site-explain strong { font-size: 13px; }
.site-explain p { margin: 6px 0 0; color: #465674; font-size: 13px; line-height: 1.5; }
.platform-list__title { display: flex; align-items: center; gap: 9px; margin: 0 0 13px; }
.platform-list__title h4 { margin: 0; font-size: 20px; letter-spacing: -.03em; }
.platform-list__title span { padding: 4px 9px; background: var(--blue-soft); color: var(--blue); border-radius: 999px; font-weight: 700; font-size: 13px; }
.platform-card {
  border: 1px solid var(--line); border-radius: 15px; overflow: hidden;
  margin-bottom: 12px; background: #fff;
}
.platform-card__head {
  display: grid; grid-template-columns: minmax(280px, 1fr) minmax(350px, 1fr);
  gap: 20px; align-items: center; padding: 17px 18px; background: #fcfdff;
}
.verified-badge {
  display: inline-flex; color: var(--green); background: var(--green-soft);
  border-radius: 999px; font-size: 11px; font-weight: 700; padding: 5px 9px; margin-bottom: 8px;
}
.platform-card__title h4 { margin: 0 0 4px; font-size: 19px; letter-spacing: -.025em; }
.category { color: var(--muted); font-size: 12px; margin: 0; }
.platform-stats {
  display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line);
  background: #fff; padding: 5px; border-radius: 11px;
}
.platform-stats div { padding: 9px 8px; }
.platform-stats strong { font-size: 19px; }
.platform-card__explanation { padding: 15px 18px; border-top: 1px solid var(--line); }
.platform-card__explanation p {
  color: #3d4c67; line-height: 1.56; font-size: 14px; margin: 0 0 10px;
}
.platform-card__explanation .interpretation {
  background: #f7f9fc; border-radius: 9px; padding: 10px 12px; color: #465674;
}
.source-link { display: inline-flex; font-size: 13px; color: var(--blue); text-decoration: none; margin-top: 2px; }
.source-link:hover { text-decoration: underline; }
.source-link--muted { color: var(--muted); }
.records-details { border-top: 1px solid var(--line); padding: 0 18px 16px; }
.records-details summary {
  cursor: pointer; padding: 14px 0 0; margin-bottom: 13px;
  font-weight: 650; font-size: 13px; color: var(--navy-2);
}
.table-wrap { border: 1px solid var(--line); border-radius: 10px; overflow-x: auto; }
.records-table { border-collapse: collapse; min-width: 790px; width: 100%; font-size: 13px; }
.records-table th {
  text-align: left; background: #f7f9fc; color: var(--muted); padding: 10px 11px;
  text-transform: uppercase; letter-spacing: .055em; font-size: 10px;
}
.records-table td { border-top: 1px solid var(--line); padding: 10px 11px; vertical-align: top; }
.records-table td code { word-break: break-word; }
.records-table td small { display: block; color: var(--muted); margin-top: 4px; }
.line-num { color: var(--muted); font-variant-numeric: tabular-nums; width: 60px; }
.relation { display: inline-flex; border-radius: 999px; padding: 4px 7px; font-size: 11px; font-weight: 700; }
.relation--direct { color: var(--green); background: var(--green-soft); }
.relation--reseller { color: var(--amber); background: var(--amber-soft); }
.relation-copy { display: block; color: var(--muted); font-size: 11px; margin-top: 4px; }
.unlabelled-card {
  margin-top: 19px; border: 1px dashed #cad4e7; border-radius: 15px;
  padding: 17px 18px; background: #fbfcfe;
}
.unlabelled-card__head { display: flex; align-items: start; justify-content: space-between; gap: 24px; }
.unlabelled-card__head h4 { font-size: 19px; letter-spacing: -.025em; margin: 0 0 7px; }
.unlabelled-card__head p { color: var(--muted); line-height: 1.5; font-size: 13px; max-width: 700px; margin: 0; }
.platform-stats--compact { min-width: 335px; grid-template-columns: repeat(3, 1fr); }
.direct-signals { margin-top: 16px; padding: 14px; background: #fff; border-radius: 10px; border: 1px solid var(--line); }
.direct-signals > strong { display: block; font-size: 13px; margin-bottom: 9px; }
.direct-signals ul { display: flex; flex-wrap: wrap; gap: 7px; list-style: none; padding: 0; margin: 0; }
.direct-signals li {
  display: inline-flex; align-items: center; gap: 7px; border: 1px solid var(--line);
  border-radius: 999px; padding: 5px 8px; background: #fbfcfe; font-size: 12px;
}
.direct-signals li span { color: var(--muted); }
.direct-signals li b { color: var(--green); font-size: 10px; }
.unlabelled-card .records-details { padding: 0; margin-top: 4px; border-top: 0; }
.empty { color: var(--muted); font-size: 14px; }
.site-card--error { padding: 22px; }
.site-card--error h3 { margin: 0 0 10px; }
.error-text { color: var(--red); margin: 0; }
.technical-error { margin-top: 12px; color: var(--muted); font-size: 13px; }
.technical-error summary { cursor: pointer; font-weight: 600; }
.technical-error code { display: block; margin-top: 8px; padding: 10px 12px; border-radius: 8px; background: #f3f5f8; white-space: pre-wrap; word-break: break-word; }
.site-footer { margin-top: 32px; border-top: 1px solid var(--line); background: #fff; color: var(--muted); font-size: 12px; }
.site-footer__inner { min-height: 64px; display: flex; justify-content: space-between; align-items: center; gap: 22px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

@media (max-width: 1040px) {
  .hero { grid-template-columns: 1fr; }
  .method { grid-template-columns: 1fr; }
  .summary-grid { grid-template-columns: repeat(2, 1fr); }
  .site-card__head, .platform-card__head { grid-template-columns: 1fr; }
  .unlabelled-card__head { display: block; }
  .platform-stats--compact { margin-top: 13px; min-width: 0; }
}
@media (max-width: 680px) {
  .shell { width: min(100% - 28px, 1320px); }
  .site-header__inner { min-height: 64px; }
  .header-badge { display: none; }
  .page { padding-top: 22px; }
  .panel { padding: 16px; border-radius: 15px; }
  .results-head { display: block; }
  .export-buttons { margin-top: 14px; }
  .summary-grid { gap: 8px; }
  .metric { padding: 13px; }
  .metric__value { font-size: 25px; }
  .site-card__head, .site-card__body { padding: 15px; }
  .site-stats, .platform-stats { grid-template-columns: repeat(2, 1fr); }
  .platform-card__head, .platform-card__explanation { padding: 14px; }
  .records-details { padding: 0 14px 14px; }
  .site-footer__inner { display: block; padding: 16px 0; }
}


/* v4: lazy seller record rendering for large ads.txt files */
.loading-hint {
  color: var(--muted);
  font-size: 13px;
  padding: 10px 0 2px;
  margin: 0;
}
.records-more {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  margin-top: 12px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  background: #f7f9fc;
  border-radius: 9px;
}
.records-more p,
.records-status {
  color: var(--muted);
  font-size: 13px;
  margin: 0;
}
.records-status {
  padding: 12px 0 1px;
}
.signals-more {
  color: var(--muted);
  background: #f3f6fa;
  border-color: transparent !important;
  font-weight: 600;
}


/* v5: seller-domain explanation cards and flat ads.txt support */
.seller-domains-details {
  border-top: 1px solid var(--line);
  padding: 0 18px 17px;
  background: #fcfdff;
}
.seller-domains-details summary {
  cursor: pointer;
  padding: 14px 0 0;
  margin-bottom: 13px;
  color: var(--blue);
  font-weight: 700;
  font-size: 13px;
}
.seller-domain-grid { display: grid; gap: 10px; }
.seller-domain-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  padding: 13px 14px;
}
.seller-domain-card__head {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 16px;
}
.seller-domain-name {
  display: inline-flex;
  color: var(--blue);
  background: var(--blue-soft);
  border-radius: 6px;
  padding: 4px 7px;
  margin-bottom: 7px;
}
.seller-domain-card h5 {
  margin: 0 0 3px;
  font-size: 17px;
  letter-spacing: -.02em;
}
.seller-mini-stats {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.seller-mini-stats span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  border: 1px solid var(--line);
  background: #f7f9fc;
  border-radius: 999px;
  padding: 5px 8px;
  font-size: 11px;
  color: var(--muted);
}
.seller-mini-stats__direct { color: var(--green) !important; background: var(--green-soft) !important; }
.seller-mini-stats__reseller { color: var(--amber) !important; background: var(--amber-soft) !important; }
.seller-description,
.seller-context {
  margin: 10px 0 0;
  color: #465674;
  font-size: 13px;
  line-height: 1.52;
}
.seller-context {
  background: #f7f9fc;
  padding: 8px 10px;
  border-radius: 8px;
}
.seller-domain-card__bottom {
  margin-top: 11px;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: end;
}
.seller-ids__label {
  display: block;
  color: var(--muted);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 6px;
}
.seller-ids {
  list-style: none;
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin: 0;
  padding: 0;
}
.seller-ids li {
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 4px 6px;
  font-size: 11px;
  background: #fbfcff;
}
.account-direct { color: var(--green); font-weight: 700; }
.account-reseller { color: var(--amber); font-weight: 700; }
.accounts-hidden { color: var(--muted); }
.seller-source {
  flex-shrink: 0;
  color: var(--blue);
  text-decoration: none;
  font-size: 12px;
}
.seller-source--muted { color: var(--muted); }
.advertiser-domain-note {
  margin: 15px 0 0;
  padding: 11px 13px;
  color: #465674;
  background: var(--blue-soft);
  border-radius: 9px;
  font-size: 13px;
  line-height: 1.5;
}
.domains-more { margin: 12px 0 0; }

@media (max-width: 680px) {
  .seller-domains-details { padding: 0 14px 14px; }
  .seller-domain-card__head,
  .seller-domain-card__bottom { display: block; }
  .seller-mini-stats { justify-content: flex-start; margin-top: 11px; }
  .seller-source { display: inline-flex; margin-top: 11px; }
}