:root { --text-scale: 1; }
html[data-text-scale="0.9"] { --text-scale: .9; }
html[data-text-scale="1.15"] { --text-scale: 1.15; }
body { font-size: calc(16px * var(--text-scale)); }
button, input, select, textarea { font-size: calc(1rem * var(--text-scale)); }
:root {
  --bg: #f5f2eb;
  --surface: #fbfaf7;
  --text: #1f211f;
  --muted: #6e706c;
  --line: #d9d5cd;
  --accent: #1d1f1d;
  --soft: #ebe7df;
  --success: #2f5940;
  --risk: #7b3f34;
  --text-scale: 1;
}
:root[data-theme="dark"] {
  --bg: #121412;
  --surface: #191c19;
  --text: #f1eee6;
  --muted: #a9aaa5;
  --line: #31352f;
  --accent: #f1eee6;
  --soft: #252923;
  --success: #9cc0a6;
  --risk: #e0a69a;
}
* { box-sizing: border-box; }
html { font-size: calc(16px * var(--text-scale)); scroll-behavior: smooth; }
body { margin: 0; font-family: Inter, system-ui, sans-serif; background: var(--bg); color: var(--text); line-height: 1.55; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { color: inherit; }
.skip-link { position: absolute; left: -999px; top: 8px; background: var(--surface); padding: 8px 12px; border: 1px solid var(--line); }
.skip-link:focus { left: 8px; z-index: 99; }
.site-header { position: sticky; top: 0; z-index: 20; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 28px; padding: 16px 28px; background: color-mix(in srgb, var(--bg) 90%, transparent); border-bottom: 1px solid var(--line); backdrop-filter: blur(10px); }
.wordmark { font-weight: 700; letter-spacing: .14em; }
.site-header nav { display: flex; gap: 20px; font-size: .88rem; color: var(--muted); }
.site-header nav a:hover, .text-link:hover { color: var(--text); }
.header-tools { display: flex; gap: 4px; }
.text-btn, .icon-btn { border: 0; background: transparent; padding: 7px 9px; cursor: pointer; color: var(--muted); }
.text-btn.active, .text-btn:hover, .icon-btn:hover { color: var(--text); }
.wrap { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.hero { min-height: 70vh; display: grid; grid-template-columns: 1.15fr .85fr; gap: 72px; align-items: center; padding: 72px 0; }
h1 { font-size: clamp(2.6rem, 6vw, 5.4rem); line-height: 1.02; letter-spacing: -.045em; margin: 10px 0 20px; font-weight: 600; }
h2 { font-size: 1.15rem; margin: 0; letter-spacing: -.02em; }
h3 { margin: 4px 0 7px; font-size: 1rem; }
p { margin: 0 0 14px; }
.lede { max-width: 620px; color: var(--muted); font-size: 1.15rem; }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 16px; border: 1px solid var(--line); cursor: pointer; font-weight: 600; }
.button.primary { background: var(--accent); color: var(--bg); border-color: var(--accent); }
.button.secondary { background: transparent; }
.button.full { width: 100%; }
.score-hero { font-size: 6rem; letter-spacing: -.07em; line-height: .9; }
.score-label { color: var(--muted); margin: 5px 0 26px; }
.mini-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); }
.mini-grid div { padding: 13px 8px 0 0; display: flex; flex-direction: column; gap: 3px; }
.mini-grid span, .metric-card span, .score-row span, .overall span { color: var(--muted); font-size: .72rem; }
.mini-grid strong { font-size: 1.15rem; }
.three-up { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); margin-bottom: 72px; }
.three-up article { padding: 28px 24px 42px 0; }
.three-up article + article { border-left: 1px solid var(--line); padding-left: 24px; }
.three-up p { color: var(--muted); margin-top: 10px; }
.auth { min-height: 75vh; display: grid; place-items: center; }
.auth-card { width: min(460px, 100%); border: 1px solid var(--line); background: var(--surface); padding: 34px; }
form { display: grid; gap: 18px; }
label { display: grid; gap: 7px; font-size: .85rem; color: var(--muted); }
input, select, textarea { width: 100%; background: transparent; border: 1px solid var(--line); color: var(--text); padding: 12px 13px; outline: none; }
textarea { min-height: 130px; resize: vertical; }
input:focus, select:focus, textarea:focus, button:focus-visible, a:focus-visible { outline: 2px solid var(--text); outline-offset: 2px; }
.page-head { display: flex; justify-content: space-between; gap: 20px; align-items: end; padding: 42px 0 28px; }
.page-head h1 { font-size: clamp(2rem, 4vw, 3.8rem); margin-bottom: 8px; }
.muted { color: var(--muted); }
.content-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 18px; margin-bottom: 20px; }
.span-2 { min-width: 0; }
.panel { background: var(--surface); border: 1px solid var(--line); padding: 24px; }
.panel-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 18px; }
.panel-head a { color: var(--muted); font-size: .82rem; }
.metric-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; margin-bottom: 20px; }
.metric-card { background: var(--surface); border: 1px solid var(--line); padding: 18px; min-height: 130px; display: flex; flex-direction: column; }
.metric-card strong { font-size: 2.05rem; letter-spacing: -.04em; margin: auto 0 9px; }
.text-metric strong { font-size: 1.25rem; }
.bar { height: 4px; background: var(--soft); overflow: hidden; }
.bar i { display: block; height: 100%; background: var(--accent); }
.table-row { display: grid; grid-template-columns: 1fr auto auto; gap: 20px; align-items: center; padding: 17px 0; border-top: 1px solid var(--line); }
.table-row div:first-child { display: grid; grid-template-columns: max-content 1fr; gap: 8px; }
.table-row div:first-child span { color: var(--muted); }
.status { display: inline-flex; align-items: center; padding: 4px 8px; background: var(--soft); font-size: .72rem; color: var(--muted); }
.status.warning { color: var(--risk); }
.finding { padding: 0 0 19px; margin-bottom: 19px; border-bottom: 1px solid var(--line); }
.finding:last-child { border-bottom: 0; margin-bottom: 0; padding-bottom: 0; }
.finding p { color: var(--muted); }
.tag, .entity { display: inline-flex; padding: 5px 8px; font-size: .8rem; text-transform: none; letter-spacing: 0; border: 1px solid var(--line); color: var(--muted); }
.tag.risk { color: var(--risk); }
.tag.opportunity { color: var(--success); }
.activity { list-style: none; padding: 0; margin: 0; display: grid; gap: 13px; }
.activity li { display: flex; gap: 10px; align-items: center; font-size: .84rem; }
.dot { width: 7px; height: 7px; border-radius: 50%; border: 1px solid var(--muted); flex: 0 0 auto; }
.dot.done { background: var(--text); }
.tabs { display: flex; gap: 6px; overflow-x: auto; padding-bottom: 1px; border-bottom: 1px solid var(--line); margin-bottom: 20px; }
.tabs a { padding: 10px 2px; margin-right: 15px; color: var(--muted); white-space: nowrap; font-size: .82rem; }
.tabs a.active { color: var(--text); border-bottom: 2px solid var(--text); }
.form-shell { width: min(920px, 100%); margin-bottom: 60px; }
.step { display: grid; grid-template-columns: 44px 1fr; gap: 20px; padding: 26px 0; border-top: 1px solid var(--line); }
.step > span { color: var(--muted); font-size: .84rem; letter-spacing: 0; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.upload { min-height: 160px; border: 1px dashed var(--line); display: grid; place-items: center; text-align: center; padding: 25px; cursor: pointer; }
.upload input { display: none; }
.upload strong { color: var(--text); }
.upload small { color: var(--muted); }
.check-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.check-grid.vertical { grid-template-columns: 1fr; }
.check-grid label { display: flex; align-items: center; gap: 8px; color: var(--text); }
.check-grid input { width: auto; }
.entity-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 25px; }
.entity-columns h3 { margin-bottom: 10px; }
.entity { margin: 0 6px 6px 0; text-transform: none; letter-spacing: 0; color: var(--text); }
.affinity-box { margin-top: 24px; display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); }
.affinity-box div { padding: 18px 16px 0 0; }
.affinity-box div + div { padding-left: 16px; border-left: 1px solid var(--line); }
.affinity-box span { display: block; color: var(--muted); font-size: .75rem; margin-bottom: 6px; }
.affinity-box strong { font-size: 1rem; font-weight: 500; }
.evidence-list { padding-left: 18px; margin: 0; color: var(--muted); }
.evidence-list li + li { margin-top: 9px; }
dialog { border: 0; padding: 0; background: transparent; color: var(--text); width: min(620px, calc(100% - 30px)); }
dialog::backdrop { background: rgba(0,0,0,.45); }
.dialog-panel { box-shadow: 0 30px 80px rgba(0,0,0,.22); }
.assistant-answer { margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--line); }
.assistant-answer span { display: block; font-size: .92rem; font-weight: 600; text-transform: none; letter-spacing: 0; color: var(--text); margin-bottom: 7px; }
.discovery-layout { display: grid; grid-template-columns: 260px 1fr; gap: 18px; margin-bottom: 60px; }
.filter-panel { align-self: start; position: sticky; top: 90px; }
.filter-panel label + label { margin-top: 16px; }
.range-value { font-size: .75rem; color: var(--text); }
.candidate-list { display: grid; gap: 12px; }
.candidate-card { background: var(--surface); border: 1px solid var(--line); padding: 23px; }
.candidate-card[hidden] { display: none; }
.candidate-top { display: flex; justify-content: space-between; gap: 20px; align-items: start; }
.candidate-top h2 { font-size: 1.55rem; margin: 2px 0 1px; }
.overall { text-align: right; display: flex; flex-direction: column; }
.overall strong { font-size: 2.5rem; letter-spacing: -.05em; line-height: 1; }
.score-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); margin: 20px 0 14px; padding: 12px 0; }
.score-row div { display: flex; flex-direction: column; }
.score-row strong { font-size: 1.08rem; }
.card-footer { display: flex; justify-content: space-between; align-items: center; }
.text-link { font-weight: 600; font-size: .82rem; }
@media (min-width: 700px) { .content-grid .span-2 { grid-column: span 1; } }
@media (max-width: 900px) {
  .site-header { grid-template-columns: auto auto; }
  .site-header nav { order: 3; grid-column: 1 / -1; overflow-x: auto; padding-top: 6px; }
  .hero { grid-template-columns: 1fr; gap: 35px; }
  .content-grid, .discovery-layout { grid-template-columns: 1fr; }
  .metric-grid { grid-template-columns: repeat(2, 1fr); }
  .filter-panel { position: static; }
}
@media (max-width: 640px) {
  .wrap { width: min(100% - 24px, 1180px); }
  .site-header { padding: 12px; gap: 14px; }
  .hero { padding: 45px 0; min-height: auto; }
  .three-up { grid-template-columns: 1fr; }
  .three-up article + article { border-left: 0; border-top: 1px solid var(--line); padding-left: 0; }
  .metric-grid, .score-row, .two-col, .check-grid, .entity-columns, .affinity-box { grid-template-columns: 1fr; }
  .affinity-box div + div { border-left: 0; border-top: 1px solid var(--line); padding-left: 0; }
  .page-head { align-items: start; flex-direction: column; }
  .table-row { grid-template-columns: 1fr auto; }
  .table-row > div:last-child { grid-column: 2; grid-row: 1; }
  .table-row > div:nth-child(2) { grid-column: 1 / -1; grid-row: 2; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
@media print { .site-header, .tabs, .hero-actions, dialog { display: none !important; } body { background: white; color: black; } .panel, .metric-card { break-inside: avoid; } }

.persona-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 20px; }
.persona-strip article { background: var(--surface); border: 1px solid var(--line); padding: 22px; }
.persona-strip article p { color: var(--muted); min-height: 48px; }
@media (max-width: 900px) { .persona-strip { grid-template-columns: 1fr; } }

.owner-shortlist { margin-bottom: 60px; }
.discovery-command { margin-bottom: 18px; }
.discovery-command + .discovery-layout { margin-top: 0; }
.discovery-actions { display: flex; justify-content: space-between; gap: 18px; align-items: end; margin-top: 16px; }
.discovery-actions label { flex: 1; }
.filter-panel hr { border: 0; border-top: 1px solid var(--line); margin: 20px 0; }
@media (max-width: 640px) { .discovery-actions { flex-direction: column; align-items: stretch; } }

.disclaimer { margin-top: 22px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: .78rem; }
.code-block { margin: 12px 0 0; max-height: 320px; overflow: auto; padding: 12px; background: var(--soft); border: 1px solid var(--line); font-size: .72rem; white-space: pre-wrap; word-break: break-word; }
summary { cursor: pointer; color: var(--muted); }
button, a { min-height: 38px; }

.alert { margin-top: 14px; padding: 12px 14px; border: 1px solid var(--line); background: var(--soft); color: var(--text); font-size: .84rem; }

.hero { min-height: 72vh; gap: 64px; padding: 92px 0 84px; }
.hero-copy { max-width: 760px; }
.hero h1 { max-width: 760px; margin: 0 0 24px; }
.lede { max-width: 680px; font-size: 1.18rem; line-height: 1.7; }
.hero-actions { margin-top: 30px; gap: 12px; }
.product-cards { padding-bottom: 88px; }
.section-heading { padding: 0 0 22px; border-bottom: 1px solid var(--line); margin-bottom: 0; }
.section-heading h2 { font-size: 1.35rem; font-weight: 500; }
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.product-grid article { min-height: 220px; padding: 30px 28px 34px 0; display: flex; flex-direction: column; align-items: flex-start; }
.product-grid article + article { border-left: 1px solid var(--line); padding-left: 28px; }
.product-grid h3 { font-size: 1.35rem; margin: 0 0 12px; letter-spacing: -.025em; }
.product-grid p { color: var(--muted); max-width: 320px; margin-bottom: 24px; }
.product-grid .text-link { margin-top: auto; }
.page-head { padding: 58px 0 34px; align-items: end; }
.page-head h1 { margin: 0 0 10px; }
.page-head > div { max-width: 760px; }
.page-head .muted { max-width: 720px; }
.content-grid { gap: 22px; margin-bottom: 28px; }
.panel { padding: 28px; }
.panel-head { margin-bottom: 22px; }
.metric-grid { gap: 14px; margin-bottom: 28px; }
.metric-card { padding: 20px; min-height: 138px; }
.dashboard-grid .panel { min-height: 210px; }
.dashboard-grid .panel.span-2 { min-height: 260px; }
.form-shell { margin-bottom: 76px; }
.step { padding: 32px 0; }
.step h2 { margin-bottom: 18px; font-size: 1.2rem; }
.discovery-command { padding: 30px; margin-bottom: 22px; }
.discovery-layout { gap: 22px; margin-bottom: 76px; }
.filter-panel { padding: 24px; }
.candidate-list { gap: 16px; }
.candidate-card { padding: 28px; }
.candidate-top h2 { font-size: 1.65rem; margin: 0 0 3px; }
.score-row { gap: 18px; margin: 24px 0 18px; padding: 15px 0; }
.auth { min-height: calc(100vh - 88px); padding: 50px 0; }
.auth-card { padding: 38px; }
.tabs { margin-bottom: 26px; }
@media (max-width: 900px) {
  .product-grid { grid-template-columns: 1fr; }
  .product-grid article { min-height: auto; padding: 26px 0; }
  .product-grid article + article { border-left: 0; border-top: 1px solid var(--line); padding-left: 0; }
  .hero { padding: 72px 0 64px; }
}
@media (max-width: 640px) {
  .hero { gap: 38px; padding: 55px 0 48px; }
  .hero-actions .button { width: 100%; }
  .page-head { padding: 42px 0 28px; }
  .panel, .candidate-card, .discovery-command { padding: 22px; }
}

/* Arc UI refinement: clear hierarchy and restrained typographic labels. */
:root {
  --bg: #f6f5f1;
  --surface: #ffffff;
  --text: #20231f;
  --muted: #62665f;
  --line: #d9ddd6;
  --accent: #173f35;
  --soft: #edf0eb;
  --success: #275c45;
  --risk: #8a3e32;
}
:root[data-theme="dark"] {
  --bg: #111512;
  --surface: #191f1b;
  --text: #f1f3ee;
  --muted: #b2b9b1;
  --line: #343d36;
  --accent: #d4e6da;
  --soft: #252d27;
  --success: #a2d0b3;
  --risk: #f0aea3;
}

.site-header {
  min-height: 76px;
  padding: 14px max(28px, calc((100vw - 1320px) / 2));
  gap: 34px;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
  backdrop-filter: none;
}
.wordmark { font-size: 1.08rem; letter-spacing: .16em; }
.site-header nav { align-items: center; gap: 26px; font-size: .92rem; }
.site-header nav a { padding: 8px 0; border-bottom: 2px solid transparent; }
.site-header nav a[aria-current="page"] { color: var(--text); border-color: var(--accent); }
.header-tools { gap: 2px; align-items: center; }
.text-btn, .icon-btn { min-height: 40px; }
.wrap { width: min(1180px, calc(100% - 48px)); }
h1 { margin-top: 0; font-weight: 600; }
h2 { font-size: 1.22rem; font-weight: 600; }
h3 { font-weight: 600; }
.button { border-radius: 4px; min-height: 46px; padding: 0 18px; transition: background-color .15s ease, border-color .15s ease; }
.button.primary { background: var(--accent); border-color: var(--accent); }
.button.primary:hover { filter: brightness(1.08); }
.button.secondary { border-color: #aeb6ad; background: transparent; }
.button.secondary:hover { background: var(--soft); }
.text-link { font-size: .91rem; font-weight: 600; color: var(--accent); }
:root[data-theme="dark"] .text-link { color: var(--text); }
.muted { line-height: 1.65; }

/* Public landing page intentionally has its own shell and no internal app navigation. */
.public-header { display: flex; justify-content: space-between; align-items: center; }
.public-header-actions { display: flex; align-items: center; gap: 24px; }
.sign-in-link { padding: 8px 0; font-size: .92rem; font-weight: 600; }
.sign-in-link:hover { text-decoration: underline; text-underline-offset: 4px; }
.landing-hero { min-height: 52vh; display: flex; align-items: center; padding-top: 82px; padding-bottom: 70px; }
.landing-hero-copy { max-width: 910px; }
.landing-hero h1 { max-width: 880px; font-size: clamp(3.15rem, 7vw, 5.65rem); line-height: 1.01; letter-spacing: -.065em; margin: 0 0 24px; }
.landing-hero .lede { max-width: 760px; font-size: clamp(1.08rem, 1.5vw, 1.27rem); line-height: 1.7; color: var(--muted); }
.landing-hero .hero-actions { margin-top: 32px; gap: 14px; }
.product-cards { padding-bottom: 96px; }
.section-heading { border: 0; padding: 0; margin: 0 0 24px; }
.section-heading h2 { font-size: 1.32rem; font-weight: 500; letter-spacing: -.025em; }
.product-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.product-grid .product-card { min-height: 250px; display: flex; flex-direction: column; align-items: flex-start; padding: 28px; background: var(--surface); border: 1px solid var(--line); border-radius: 5px; }
.product-grid .product-card + .product-card { border-left: 1px solid var(--line); padding-left: 28px; }
.product-grid h3 { margin: 0 0 14px; font-size: 1.32rem; letter-spacing: -.03em; }
.product-grid p { max-width: 330px; color: var(--muted); line-height: 1.65; margin-bottom: 24px; }
.product-grid .text-link { margin-top: auto; }

/* Internal product pages share a deliberate and consistent rhythm. */
.page-head { padding: 48px 0 28px; align-items: center; }
.page-head h1 { font-size: clamp(2rem, 4vw, 3.55rem); line-height: 1.08; letter-spacing: -.05em; margin: 0 0 10px; }
.page-head .muted { max-width: 720px; }
.content-grid { grid-template-columns: minmax(0, 1.45fr) minmax(280px, 1fr); gap: 20px; margin-bottom: 22px; align-items: start; }
.content-grid .span-2 { grid-column: auto; }
.panel { min-width: 0; padding: 28px; border-radius: 5px; }
.panel-head { margin-bottom: 20px; align-items: center; }
.panel-head h2 { margin: 0; }
.panel-head > .muted { font-size: .88rem; }
.metric-grid { gap: 14px; margin-bottom: 24px; }
.metric-card { border-radius: 4px; padding: 19px; min-height: 142px; }
.metric-card > span { font-size: .82rem; line-height: 1.35; color: var(--muted); }
.metric-card strong { margin: auto 0 10px; font-size: clamp(1.8rem, 2.6vw, 2.2rem); }
.tabs { gap: 20px; margin-bottom: 24px; }
.tabs a { padding: 12px 0; margin: 0; font-size: .9rem; }
.status { border-radius: 3px; font-size: .78rem; padding: 5px 9px; text-transform: none; letter-spacing: 0; }
/* Neutral labels use normal casing and restrained emphasis. */
.tag { display: inline-flex; align-items: center; width: fit-content; padding: 4px 8px; font-size: .8rem; text-transform: none; letter-spacing: 0; border-radius: 3px; background: var(--soft); }
.tag.risk { color: var(--risk); }
.tag.opportunity { color: var(--success); }
.entity { display: inline-flex; padding: 7px 10px; font-size: .87rem; text-transform: none; letter-spacing: 0; border-radius: 3px; background: var(--soft); border: 1px solid var(--line); margin: 0 6px 8px 0; }
.assistant-answer span { display: block; font-size: .92rem; text-transform: none; letter-spacing: 0; font-weight: 600; color: var(--text); margin-bottom: 7px; }
.step { grid-template-columns: 42px minmax(0, 1fr); gap: 22px; padding: 30px 0; }
.step > span { display: grid; place-items: center; width: 34px; height: 34px; border: 1px solid var(--line); border-radius: 50%; font-size: .84rem; letter-spacing: 0; color: var(--text); }
.form-shell { width: min(900px, 100%); margin-bottom: 80px; }
.step h2 { font-size: 1.22rem; margin: 0 0 18px; }
input, select, textarea { border-radius: 3px; min-height: 46px; }
.upload { border-radius: 4px; }
.discovery-command { margin-bottom: 22px; padding: 30px; }
.discovery-layout { grid-template-columns: 270px minmax(0, 1fr); gap: 22px; margin-bottom: 80px; }
.filter-panel { padding: 24px; border-radius: 5px; }
.candidate-list { min-width: 0; gap: 16px; }
.candidate-card { min-width: 0; padding: 28px; border-radius: 5px; }
.candidate-top { align-items: flex-start; }
.candidate-top h2 { margin: 0 0 6px; font-size: 1.5rem; line-height: 1.2; }
.score-row { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.card-footer { gap: 16px; flex-wrap: wrap; }
.empty-state { padding: 32px; }
.empty-state h2, .empty-state h3 { margin-top: 0; }
.auth { padding: 60px 0; }
.auth-card { border-radius: 5px; padding: 38px; }
.alert { border-radius: 4px; }

@media (max-width: 900px) {
  .site-header { padding: 13px 24px; gap: 20px; }
  .site-header nav { gap: 18px; }
  .landing-hero { min-height: auto; padding: 72px 0 58px; }
  .product-grid { grid-template-columns: 1fr; }
  .product-grid .product-card { min-height: auto; }
  .content-grid, .discovery-layout { grid-template-columns: minmax(0, 1fr); }
  .filter-panel { position: static; }
  .metric-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .wrap { width: min(100% - 32px, 1180px); }
  .site-header { padding: 12px 16px; flex-wrap: wrap; }
  .site-header nav { order: 3; width: 100%; gap: 18px; overflow-x: auto; padding: 4px 0 2px; }
  .public-header { flex-wrap: nowrap; }
  .public-header-actions { gap: 12px; }
  .header-tools { gap: 0; }
  .text-btn, .icon-btn { padding: 6px; min-width: 32px; }
  .landing-hero { padding: 60px 0 46px; }
  .landing-hero h1 { font-size: clamp(2.7rem, 13vw, 4rem); line-height: 1.02; margin-bottom: 20px; }
  .landing-hero .hero-actions { align-items: stretch; flex-direction: column; }
  .landing-hero .hero-actions .button { width: 100%; }
  .product-cards { padding-bottom: 56px; }
  .product-grid .product-card, .product-grid .product-card + .product-card { padding: 24px; }
  .page-head { padding: 38px 0 24px; align-items: flex-start; flex-direction: column; }
  .page-head .hero-actions { width: 100%; flex-wrap: wrap; }
  .panel, .candidate-card, .discovery-command { padding: 22px; }
  .metric-grid, .score-row, .two-col, .check-grid, .entity-columns, .affinity-box { grid-template-columns: minmax(0, 1fr); }
  .affinity-box div + div { border-left: 0; border-top: 1px solid var(--line); padding: 18px 0 0; }
  .candidate-top { flex-direction: column; }
  .overall { text-align: left; }
  .card-footer { align-items: flex-start; }
  .step { grid-template-columns: 34px minmax(0, 1fr); gap: 14px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}


/* Final page-balance adjustments */
.metric-grid { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.content-grid > .panel:only-child { grid-column: 1 / -1; }
.content-grid > .span-2:only-child { grid-column: 1 / -1; }
.dashboard-content { display: grid; gap: 20px; margin-bottom: 80px; }
.recent-panel { min-width: 0; }
.dashboard-shortcuts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.shortcut-card { min-height: 190px; display: flex; flex-direction: column; align-items: flex-start; }
.shortcut-card p { max-width: 550px; margin: 14px 0 22px; }
.shortcut-card .button { margin-top: auto; }
.empty-state { border: 1px solid var(--line); border-radius: 4px; background: var(--surface); padding: 34px; }
.empty-state-inline { border: 0; border-top: 1px solid var(--line); background: transparent; padding: 28px 0 4px; }
.empty-state p { max-width: 640px; }
.candidate-list > .empty-state { min-height: 260px; display: flex; flex-direction: column; align-items: flex-start; justify-content: center; }
.filter-panel label + label { margin-top: 0; }
.score-weights { list-style: none; margin: 22px 0 0; padding: 0; }
.score-weights li { display: flex; justify-content: space-between; gap: 16px; padding: 13px 0; border-top: 1px solid var(--line); }
.score-weights li span { color: var(--muted); }
.score-weights li strong { font-weight: 600; }
.discovery-actions { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-top: 20px; }
.discovery-actions > p { flex: 1; margin: 0; }
.discovery-actions > .button { flex: 0 0 auto; align-self: center; margin: 0; }
.threshold-field { flex: 1; min-width: 0; }
.threshold-field > label { display: block; margin-bottom: 8px; color: var(--muted); }
.threshold-control { display: grid; grid-template-columns: minmax(0, 1fr) 42px; gap: 14px; align-items: center; }
.threshold-control input[type="range"] { accent-color: var(--accent); padding: 0; border: 0; min-height: 28px; }
.range-value { display: inline-flex; justify-content: center; font-weight: 600; font-variant-numeric: tabular-nums; color: var(--text); }
@media (max-width: 900px) {
  .dashboard-shortcuts { grid-template-columns: 1fr; }
  .shortcut-card { min-height: auto; }
}
@media (max-width: 640px) {
  .dashboard-content { gap: 16px; }
  .dashboard-shortcuts { gap: 16px; }
  .empty-state { padding: 24px; }
  .empty-state-inline { padding: 24px 0 0; }
  .discovery-actions { flex-direction: column; align-items: stretch; }
  .discovery-actions > .button { width: 100%; }
}


/* Authentication and account controls */
.auth-switch { margin: 22px 0 0; color: var(--muted); text-align: center; font-size: .92rem; }
.auth-switch a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.form-alert { margin: 0 0 20px; padding: 12px 14px; border: 1px solid var(--danger, #b74343); color: var(--text); background: var(--surface); line-height: 1.5; }
.logout-form { margin: 0; display: inline-flex; }
.logout-btn { font-size: .88rem; }
.auth-card form { display: grid; gap: 18px; }
.auth-card label { display: grid; gap: 7px; }
.auth-card input { width: 100%; }


/* Sign-in demo access: visually distinct but consistent with Arc's restrained UI. */
.demo-access { margin: 1.25rem 0 1.5rem; padding: 1rem 1.1rem; border: 1px solid var(--border, #d8dce2); border-radius: 12px; background: var(--panel, rgba(127,127,127,.045)); }
.demo-access h2 { margin: 0 0 .65rem; font-size: 1.05rem; font-weight: 600; }
.demo-access p { margin: .3rem 0; }
.demo-access code { font-size: .92em; overflow-wrap: anywhere; }
.demo-access form { margin-top: .85rem; }

/* Business research and independent comparable-company discovery */
.business-research-panel { margin-bottom: 26px; }
.business-results { display: grid; gap: 18px; margin-bottom: 80px; }
.business-report-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas: "title timestamp" "meta meta";
  align-items: start;
  gap: 8px 24px;
  padding: 10px 0 14px;
  min-width: 0;
}
.business-report-title { grid-area: title; min-width: 0; }
.business-report-head h2 { font-size: 1.55rem; line-height: 1.22; margin: 0; overflow-wrap: anywhere; }
.business-report-meta {
  grid-area: meta;
  display: grid;
  gap: 4px;
  max-width: 100%;
  min-width: 0;
  margin: 0;
  color: var(--muted);
  font-size: .91rem;
  line-height: 1.55;
}
.business-report-meta-main { display: flex; align-items: baseline; flex-wrap: wrap; gap: 4px 9px; min-width: 0; }
.business-report-meta-main > span { min-width: 0; overflow-wrap: anywhere; }
.business-report-meta .meta-separator { opacity: .72; }
.business-report-meta-detail { margin: 0; max-width: 90ch; min-width: 0; overflow-wrap: anywhere; line-height: 1.55; }
.business-report-head .report-timestamp { grid-area: timestamp; align-self: start; justify-self: end; max-width: 100%; white-space: nowrap; margin: 2px 0 0; text-align: right; }

.insight-panel h2 { margin-bottom: 18px; }
.insight-panel > p + p { margin-top: 12px; }
.insight-list { display: grid; }
.insight-list article { border-top: 1px solid var(--line); padding: 16px 0; }
.insight-list article:first-child { padding-top: 0; border-top: 0; }
.insight-list article:last-child { padding-bottom: 0; }
.insight-list p { margin: 5px 0 0; color: var(--muted); }
.insight-list .text-link { display: inline-block; margin-top: 8px; }
.source-list { margin: 0; padding-left: 20px; }
.source-list li + li { margin-top: 10px; }
.report-timestamp { font-size: .82rem; }
.discovery-command form { gap: 20px; }
.discovery-command .discovery-actions { margin-top: 2px; justify-content: flex-end; }
.discovery-help { max-width: 620px; }
.comparable-card .candidate-top { align-items: center; }
.comparable-card .candidate-top .text-link { flex: 0 0 auto; }
.comparable-facts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); margin: 18px 0; padding: 14px 0; }
.comparable-facts div { display: grid; gap: 5px; min-width: 0; }
.comparable-facts span { font-size: .78rem; color: var(--muted); }
.comparable-facts strong { font-size: 1rem; overflow-wrap: anywhere; }
.comparable-reason { margin-bottom: 18px; }
.comparable-reason p { color: var(--muted); margin: 5px 0 0; }
.source-links { display: flex; flex-wrap: wrap; gap: 8px 18px; border-top: 1px solid var(--line); padding-top: 13px; font-size: .82rem; }
.source-links strong { color: var(--muted); font-weight: 500; }
.source-links a { max-width: 100%; overflow-wrap: anywhere; }
.tour-launch { flex: 0 0 auto; width: 36px; min-width: 36px; height: 36px; padding: 0; border: 1px solid var(--line); border-radius: 50%; display: inline-grid; place-items: center; font-weight: 600; }
.tour-panel { padding: 26px; }
.tour-panel h2 { font-size: 1.65rem; line-height: 1.2; margin: 22px 0 12px; }
.tour-panel > p { min-height: 96px; max-width: 56ch; color: var(--muted); }
.tour-progress { color: var(--muted); font-size: .82rem; }
.tour-progress-track { height: 3px; background: var(--soft); overflow: hidden; }
.tour-progress-track span { display: block; height: 100%; background: var(--accent); transition: width .15s ease; }
.tour-controls { display: grid; grid-template-columns: max-content minmax(0, 1fr); gap: 12px; align-items: center; margin-top: 20px; }
.tour-controls .hero-actions { display: flex; flex-wrap: nowrap; justify-content: flex-end; gap: 8px; margin-top: 0; }
.tour-controls .button { white-space: nowrap; padding-left: 12px; padding-right: 12px; }
#arc-tour { max-width: 100%; }
#arc-tour::backdrop { background: rgba(10,12,10,.56); backdrop-filter: blur(2px); }
@media (max-width: 760px) {
  .comparable-facts { grid-template-columns: 1fr; }
  .business-report-head { grid-template-columns: minmax(0, 1fr); grid-template-areas: "title" "timestamp" "meta"; gap: 7px; }
  .business-report-head .report-timestamp { justify-self: start; white-space: normal; text-align: left; margin: 0; }
  .tour-controls { grid-template-columns: max-content minmax(0, 1fr); gap: 8px; }
  .tour-controls .button { min-height: 42px; padding-left: 9px; padding-right: 9px; font-size: .82rem; }
  .tour-controls .hero-actions { gap: 6px; }
}


/* Explicitly distinguish operating research from peer-company discovery. */
.product-purpose { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; margin-top: -8px; margin-bottom: 24px; padding-top: 20px; border-top: 1px solid var(--line); }
.product-purpose > div { min-width: 0; }
.product-purpose strong { display: block; margin-bottom: 6px; font-weight: 600; }
.product-purpose p { margin: 0 0 8px; color: var(--muted); line-height: 1.6; }
@media (max-width: 640px) { .product-purpose { grid-template-columns: 1fr; gap: 16px; } }


/* Clear in-flight feedback for slow research requests. */
.button:disabled, button:disabled, .button[aria-busy="true"] {
  opacity: .55;
  filter: grayscale(.7);
  cursor: wait;
  box-shadow: none;
}
.button:disabled:hover, button:disabled:hover { filter: grayscale(.7); }
.button[aria-busy="true"]::before {
  content: "";
  display: inline-block;
  width: 12px;
  height: 12px;
  margin-right: 9px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: arc-button-spin .75s linear infinite;
}
@keyframes arc-button-spin { to { transform: rotate(360deg); } }
.cultural-section { display: grid; gap: 18px; }
.cultural-category-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.cultural-category { border: 1px solid var(--line); border-radius: 4px; padding: 16px; min-width: 0; }
.cultural-category h3 { margin: 0 0 12px; font-size: 1rem; }
.cultural-signal-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.cultural-signal-list li { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; padding-bottom: 9px; border-bottom: 1px solid var(--line); }
.cultural-signal-list li:last-child { border-bottom: 0; padding-bottom: 0; }
.cultural-signal-name { min-width: 0; overflow-wrap: anywhere; }
.cultural-affinity { flex: 0 0 auto; font-size: .76rem; color: var(--muted); font-variant-numeric: tabular-nums; }
.cultural-tags { display: flex; flex-wrap: wrap; gap: 7px; }
.cultural-tag { display: inline-flex; align-items: center; padding: 6px 9px; border: 1px solid var(--line); background: var(--soft); border-radius: 3px; font-size: .84rem; }
.cultural-note { padding: 12px 14px; background: var(--soft); border-left: 3px solid var(--accent); color: var(--muted); line-height: 1.6; }
.peer-culture { padding-top: 16px; margin-top: 16px; border-top: 1px solid var(--line); }
.peer-culture h3 { margin: 0 0 9px; font-size: 1rem; }
@media (max-width: 760px) { .cultural-category-grid { grid-template-columns: 1fr; } }

.cultural-explanation { flex: 0 0 100%; width: 100%; margin-top: 6px; font-size: .8rem; line-height: 1.55; color: var(--muted); }
.cultural-explanation summary { cursor: pointer; width: fit-content; }
.cultural-explanation p { margin: 6px 0 2px; overflow-wrap: anywhere; }
.cultural-explanation-summary { margin-top: 8px; }
.cultural-signal-list li { flex-wrap: wrap; }


/* Recent analysis rows: separate company names, score and actions for comfortable scanning. */
.dashboard-page-head { min-height: 110px; }
.recent-analysis-list { display: grid; }
.recent-analysis-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(170px, auto) auto; align-items: center; gap: 24px; padding: 20px 0; border-top: 1px solid var(--line); }
.recent-analysis-main { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; min-width: 0; color: var(--text); text-decoration: none; }
.recent-analysis-main strong { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; line-height: 1.5; font-size: 1rem; overflow-wrap: anywhere; }
.recent-analysis-main:hover strong { text-decoration: underline; text-underline-offset: 3px; }
.recent-analysis-date { color: var(--muted); font-size: .82rem; }
.recent-analysis-meta { display: flex; flex-direction: column; align-items: flex-start; gap: 10px; min-width: 0; }
.recent-analysis-score { display: flex; flex-direction: column; align-items: flex-start; gap: 5px; line-height: 1.4; min-width: 0; }
.recent-analysis-score span { color: var(--muted); font-size: .78rem; }
.recent-analysis-score strong { overflow-wrap: anywhere; font-size: .92rem; font-weight: 600; }
.delete-analysis-button { min-height: 38px; white-space: nowrap; }
.button:disabled, button:disabled { opacity: .55; cursor: not-allowed; filter: grayscale(.35); }
.analyst-analysis-list { margin-bottom: 80px; }
@media (max-width: 720px) {
  .recent-analysis-row { grid-template-columns: minmax(0, 1fr) auto; gap: 14px; }
  .recent-analysis-meta { grid-column: 1; grid-row: 2; }
  .delete-analysis-button { grid-column: 2; grid-row: 1 / span 2; align-self: center; }
}


/* Acquisition Analysis section navigation remains visible while reading long reports. */
.analysis-tabs {
  position: sticky;
  top: 62px;
  z-index: 15;
  background: var(--bg);
  padding: 8px 0 0;
  box-shadow: 0 1px 0 var(--line);
  scroll-margin-top: 140px;
}
.analysis-tabs a { scroll-margin-top: 150px; }
.analysis-tabs ~ section[id] { scroll-margin-top: 150px; }
@media (max-width: 900px) { .analysis-tabs { top: 96px; } }
@media (max-width: 640px) {
  .analysis-tabs { top: 102px; gap: 16px; padding-top: 8px; }
  .analysis-tabs a { font-size: .82rem; }
}


/* The active analysis section is reflected in the sticky tab underline. */
.analysis-tabs a { border-bottom: 2px solid transparent; color: var(--muted); transition: color .15s ease, border-color .15s ease; }
.analysis-tabs a.active { border-bottom-color: var(--accent); color: var(--text); font-weight: 600; }
.culture-tabs { display: flex; flex-wrap: nowrap; gap: 22px; overflow-x: auto; margin: 24px 0 20px; border-bottom: 1px solid var(--line); }
.culture-tabs button { flex: 0 0 auto; border: 0; border-bottom: 2px solid transparent; margin: 0 0 -1px; padding: 12px 0; background: transparent; color: var(--muted); font: inherit; font-size: .9rem; cursor: pointer; }
.culture-tabs button.active { border-bottom-color: var(--accent); color: var(--text); font-weight: 600; }
.culture-tab-panel[hidden] { display: none !important; }
.culture-tab-panel { min-width: 0; padding: 4px 0 8px; }
.culture-tab-panel > h3:first-child { margin-top: 4px; }
@media (max-width: 640px) { .culture-tabs { gap: 18px; } .culture-tabs button { font-size: .84rem; } }

/* Compact score summaries: descriptions support the metric without competing with it. */
.metric-card-summary { min-width: 0; min-height: 136px; padding: 14px 15px 12px; gap: 6px; overflow: hidden; }
.metric-card-summary .metric-label { display: block; max-width: 100%; min-height: 1.9em; font-size: .74rem; font-weight: 600; line-height: 1.25; overflow-wrap: anywhere; }
.metric-card-summary .metric-value { display: block; max-width: 100%; margin: 2px 0 0; line-height: 1.08; letter-spacing: -.02em; overflow-wrap: anywhere; word-break: normal; }
.metric-card-summary .score-value { font-size: clamp(1.25rem, 1.7vw, 1.65rem); font-variant-numeric: tabular-nums; }
.metric-card-summary .text-value { font-size: clamp(.92rem, 1.08vw, 1.08rem); line-height: 1.12; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.metric-card-summary .bar { margin-top: 1px; }
.metric-card-summary .metric-detail { margin: auto 0 0; max-width: 25ch; color: var(--muted); font-size: .69rem; line-height: 1.28; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.takeaway-cultural { border-top: 1px solid var(--line); margin-top: 22px; padding-top: 18px; }
.takeaway-cultural h3 { margin: 0 0 10px; font-size: 1.03rem; }
.takeaway-cultural > p { max-width: 82ch; line-height: 1.65; }