/* ════════════════════════════════════════════════════════════
   Optrix — Use case pages (shared)
   Layout adapted from Midday feature-page macrostructure,
   restyled with Optrix tokens. Includes the "illo" kit:
   flat product-UI illustration panels.
   ════════════════════════════════════════════════════════════ */

/* ── Lucid font ── */
@font-face { font-family: 'Lucid'; src: url('fonts/lucid-light.woff2') format('woff2'); font-weight: 300; font-style: normal; font-display: swap; }
@font-face { font-family: 'Lucid'; src: url('fonts/lucid-regular.woff2') format('woff2'); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: 'Lucid'; src: url('fonts/lucid-medium.woff2') format('woff2'); font-weight: 500; font-style: normal; font-display: swap; }
@font-face { font-family: 'Lucid'; src: url('fonts/lucid-semibold.woff2') format('woff2'); font-weight: 600; font-style: normal; font-display: swap; }
@font-face { font-family: 'Lucid'; src: url('fonts/lucid-bold.woff2') format('woff2'); font-weight: 700; font-style: normal; font-display: swap; }

/* ── Tokens ── */
:root {
  --color-paper:       #ffffff;
  --color-paper-2:     #f9fafb;
  --color-ink:         #1c1917;
  --color-ink-2:       #57534d;
  --color-ink-muted:   #79716b;
  --color-ink-ghost:   #a8a29e;
  --color-rule:        rgba(0,0,0,0.06);
  --color-accent:      #fc5616;
  --color-accent-hover:#e34a0d;
  --color-accent-soft: rgba(254, 85, 27, 0.08);
  --color-good:        #16a34a;
  --color-good-soft:   rgba(22, 163, 74, 0.1);
  --color-warn:        #ca8a04;
  --color-warn-soft:   rgba(202, 138, 4, 0.1);
  --font-display: "Lucid", ui-serif, Georgia, "Times New Roman", serif;
  --font-body:    "Geist", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-mono:    "Geist Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --page-max:    1300px;
  --page-gutter: clamp(1.25rem, 4vw, 2rem);
  --radius:      16px;
  --radius-sm:   10px;
  --dur:         180ms;
}

/* ── Reset / base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html { overflow-x: hidden; scroll-behavior: smooth; }
body {
  overflow-x: hidden;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
button { font: inherit; cursor: pointer; }

.wrap { max-width: var(--page-max); margin: 0 auto; padding: 0 var(--page-gutter); }
.wrap--narrow { max-width: 1000px; margin: 0 auto; padding: 0 var(--page-gutter); }

/* ── Typography ── */
h1, h2 {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.05;
  color: var(--color-ink);
}
h2 { font-size: clamp(30px, 3vw + 8px, 42px); line-height: 1.1; }
h3 { font-size: 20px; letter-spacing: -0.01em; line-height: 1.3; font-weight: 500; font-family: var(--font-body); color: var(--color-ink); }
.muted-part { color: var(--color-ink-ghost); }
.section-tag {
  font-family: var(--font-mono);
  font-size: 11px; font-weight: 500;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 16px;
}
.sub { font-size: 16px; line-height: 1.6; color: var(--color-ink-2); max-width: 560px; }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  font-family: var(--font-body); font-size: 13px; font-weight: 500;
  line-height: 1; height: 36px; padding: 0 14px;
  border: 1px solid transparent; border-radius: 10px; cursor: pointer;
  transition: all var(--dur) ease; white-space: nowrap; text-decoration: none;
}
.btn:active { transform: scale(0.98); }
.btn--accent {
  background: var(--color-accent); color: #fff; border-color: var(--color-accent);
  box-shadow: 0 1px 2px rgba(0,0,0,0.08), inset 0 1px 0 rgba(255,255,255,0.16);
}
.btn--accent:hover { background: var(--color-accent-hover); border-color: var(--color-accent-hover); }
.btn--outline { background: var(--color-paper); color: var(--color-ink); border-color: rgba(0,0,0,0.06); }
.btn--outline:hover { background: var(--color-paper-2); border-color: rgba(0,0,0,0.12); }
.btn--ghost { background: rgba(0,0,0,0.04); color: var(--color-ink-2); border: none; }
.btn--ghost:hover { background: rgba(0,0,0,0.06); color: var(--color-ink); }

/* ── Nav ── */
.site-nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
}
.site-nav__inner {
  max-width: var(--page-max); margin: 0 auto; padding: 0 var(--page-gutter);
  display: flex; align-items: center; justify-content: space-between; height: 56px;
}
.nav-logo {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-display); font-weight: 600; font-size: 18px; color: var(--color-ink);
}
.nav-logo img.mark { width: 22px; height: auto; display: block; }
.nav-links { display: flex; align-items: center; gap: 4px; list-style: none; padding: 0; margin: 0; }
.nav-links a {
  font-size: 14px; font-weight: 400; color: var(--color-ink-2);
  padding: 6px 12px; border-radius: 6px;
  transition: color var(--dur) ease, background var(--dur) ease;
}
.nav-links a:hover { color: var(--color-ink); background: rgba(0,0,0,0.04); }
.nav-links a.active { color: var(--color-ink); }

/* ── Nav dropdown ── */
.nav-dd { position: relative; }
.nav-dd > a { display: inline-flex; align-items: center; gap: 5px; }
.nav-dd > a .caret { width: 10px; height: 10px; transition: transform var(--dur) ease; }
.nav-dd:hover > a .caret { transform: rotate(180deg); }
.nav-dd__panel {
  position: absolute; top: calc(100% + 10px); left: -8px;
  min-width: 270px;
  background: var(--color-paper);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius);
  box-shadow: 0 16px 48px -16px rgba(0,0,0,0.18);
  padding: 16px;
  opacity: 0; visibility: hidden; transform: translateY(4px);
  transition: opacity var(--dur) ease, transform var(--dur) ease, visibility var(--dur);
  z-index: 60;
}
.nav-dd__panel::before {
  content: ''; position: absolute; top: -12px; left: 0; right: 0; height: 12px;
}
.nav-dd:hover .nav-dd__panel,
.nav-dd:focus-within .nav-dd__panel { opacity: 1; visibility: visible; transform: none; }
.nav-dd__tag {
  font-family: var(--font-mono); font-size: 10px; font-weight: 500;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--color-accent);
  padding: 0 8px; margin-bottom: 10px;
}
.nav-dd__item {
  display: flex; align-items: center; gap: 12px;
  padding: 7px 8px; border-radius: var(--radius-sm);
  font-size: 14px; color: var(--color-ink-2) !important;
  background: none !important;
  transition: background var(--dur) ease, color var(--dur) ease;
}
.nav-dd__item:hover { background: rgba(0,0,0,0.03) !important; color: var(--color-ink) !important; }
.nav-dd__item .ic {
  width: 34px; height: 34px; flex-shrink: 0;
  border: 1px solid var(--color-rule); border-radius: 9px;
  background: var(--color-paper);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-ink-muted);
}
.nav-dd__item .ic svg { width: 16px; height: 16px; }
.nav-right { display: flex; align-items: center; gap: 8px; }
.nav-right .nav-cta {
  font-size: 14px; background: var(--color-ink); color: #fff; font-weight: 500;
  padding: 6px 20px; border-radius: 10px; transition: all var(--dur) ease;
}
.nav-right .nav-cta:hover { background: #292524; }

/* ── Use-case hero (Midday: centered label + giant serif + sub) ── */
.uc-hero { padding: 96px 0 64px; text-align: center; }
.uc-hero .section-tag { margin-bottom: 20px; }
.uc-hero h1 {
  font-size: clamp(44px, 5.5vw + 8px, 84px);
  letter-spacing: -0.025em;
  max-width: 22ch; margin: 0 auto 24px;
  text-wrap: balance;
}
.uc-hero .sub { margin: 0 auto 32px; max-width: 600px; text-wrap: balance; }
.uc-hero__actions { display: flex; gap: 10px; justify-content: center; }

/* hero illustration stage */
.uc-hero__stage { margin-top: 72px; }

/* ── Section divider (Midday hairlines between sections) ── */
.hairline { border: 0; border-top: 1px solid var(--color-rule); margin: 0; }

/* ── Alternating feature rows ── */
.uc-feature { padding: 96px 0; }
.uc-feature__inner {
  display: grid; grid-template-columns: 1fr 1.1fr; gap: 72px; align-items: center;
}
.uc-feature__inner--flip { grid-template-columns: 1.1fr 1fr; }
.uc-feature__inner--flip .uc-feature__text { order: 2; }
.uc-feature__inner--flip .uc-feature__visual { order: 1; }
.uc-feature__text h2 { margin-bottom: 16px; }
.uc-feature__text p { font-size: 16px; color: var(--color-ink-2); line-height: 1.6; max-width: 46ch; }
.uc-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.uc-chip {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px; color: var(--color-ink-2);
  padding: 7px 12px; background: var(--color-paper);
  border: 1px solid var(--color-rule); border-radius: var(--radius-sm);
}

/* ── Icon grid (Everything in the workbook) ── */
.uc-grid-section { padding: 96px 0; }
.uc-grid-section .section-head { text-align: center; margin-bottom: 64px; }
.uc-grid-section .section-head .sub { margin: 12px auto 0; }
.uc-icon-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 48px 32px;
  max-width: 1000px; margin: 0 auto;
}
.uc-icon-cell { text-align: center; }
.uc-icon-cell .ic {
  width: 40px; height: 40px; margin: 0 auto 14px;
  border-radius: var(--radius-sm);
  background: var(--color-paper-2); border: 1px solid var(--color-rule);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-ink-2);
}
.uc-icon-cell .ic svg { width: 18px; height: 18px; }
.uc-icon-cell h3 { font-size: 14px; font-weight: 500; margin-bottom: 4px; }
.uc-icon-cell p { font-size: 13px; color: var(--color-ink-muted); line-height: 1.5; }

/* ── Stat bento (Less admin. More focus.) ── */
.uc-stats-section { padding: 96px 0; }
.uc-stats-section .section-head { text-align: center; margin-bottom: 56px; }
.uc-stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.uc-stat-card {
  border: 1px solid var(--color-rule); border-radius: var(--radius);
  padding: 28px; background: var(--color-paper);
}
.uc-stat-card .k { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-ink-muted); margin-bottom: 16px; }
.uc-stat-card .v { font-family: var(--font-display); font-size: 36px; letter-spacing: -0.02em; line-height: 1; margin-bottom: 10px; }
.uc-stat-card p { font-size: 14px; color: var(--color-ink-2); line-height: 1.55; }
.uc-stat-card--wide {
  grid-column: 1 / -1;
  display: flex; align-items: center; justify-content: space-between; gap: 32px;
  background: var(--color-paper-2);
}
.uc-stat-card--wide .v { font-size: clamp(40px, 4vw, 64px); margin-bottom: 0; }

/* ── Checklist block (Ready for accounting…) ── */
.uc-check-section { padding: 96px 0; text-align: center; }
.uc-check-section .lead-icon {
  width: 56px; height: 56px; margin: 0 auto 24px;
  border-radius: 14px; background: var(--color-accent-soft); color: var(--color-accent);
  display: flex; align-items: center; justify-content: center;
}
.uc-check-section h2 { max-width: 22ch; margin: 0 auto 12px; }
.uc-check-section .sub { margin: 0 auto 40px; }
.uc-checklist {
  max-width: 640px; margin: 0 auto; text-align: left;
  background: var(--color-paper-2); border: 1px solid var(--color-rule);
  border-radius: var(--radius); padding: 12px 28px;
  list-style: none;
}
.uc-checklist li {
  display: flex; gap: 12px; align-items: flex-start;
  font-size: 14px; color: var(--color-ink-2); line-height: 1.5;
  padding: 14px 0;
}
.uc-checklist li + li { border-top: 1px solid var(--color-rule); }
.uc-checklist svg { width: 16px; height: 16px; color: var(--color-good); flex-shrink: 0; margin-top: 3px; }

/* ════════════════════════════════════════════════════════════
   ILLO KIT — flat product-UI illustration panels
   White panel + hairline border; serif for money/values;
   mono for column heads; soft status pills. No screenshots —
   everything is built from these primitives.
   ════════════════════════════════════════════════════════════ */

.illo {
  background: var(--color-paper);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius);
  padding: 28px;
  text-align: left;
  box-shadow: 0 4px 24px -12px rgba(0,0,0,0.06);
}
.illo--lg { padding: 40px; }

/* stage: framed area a panel sits on (hero) — plus-grid texture */
.illo-stage {
  border: 1px solid var(--color-rule); border-radius: var(--radius);
  background-color: var(--color-paper-2);
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%231c1917' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  background-size: 60px 60px;
  padding: clamp(24px, 4vw, 56px);
}
.illo-stage .illo { box-shadow: 0 16px 48px -16px rgba(0,0,0,0.12); }

/* caption row at top of a panel */
.illo__caption {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 13px; font-weight: 500; color: var(--color-ink);
  padding-bottom: 14px; margin-bottom: 20px;
  border-bottom: 1px solid var(--color-rule);
}
.illo__caption .crumb { color: var(--color-ink-muted); font-weight: 400; }
.illo__caption .crumb b { color: var(--color-accent); font-weight: 500; }

/* stat cards inside a panel */
.illo-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-bottom: 20px; }
.illo-stats--4 { grid-template-columns: repeat(4, 1fr); }
.illo-stat {
  border: 1px solid var(--color-rule); border-radius: var(--radius-sm);
  padding: 14px 16px;
}
.illo-stat .v { font-family: var(--font-display); font-size: 24px; letter-spacing: -0.02em; line-height: 1.15; color: var(--color-ink); }
.illo-stat .l { font-size: 12px; font-weight: 500; color: var(--color-ink); margin-top: 4px; }
.illo-stat .m { font-size: 11px; color: var(--color-ink-muted); }

/* data table */
.illo-table { width: 100%; border-collapse: collapse; font-size: 12px; }
.illo-table th {
  font-family: var(--font-mono); font-size: 10px; font-weight: 500;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--color-ink-muted); background: var(--color-paper-2);
  text-align: left; padding: 8px 10px;
}
.illo-table td {
  padding: 8px 10px; color: var(--color-ink-2);
  border-bottom: 1px solid var(--color-rule);
  white-space: nowrap;
}
.illo-table td.num, .illo-table th.num { text-align: right; font-variant-numeric: tabular-nums; }
.illo-table tr:last-child td { border-bottom: none; }

/* status pills */
.illo-pill {
  display: inline-block; font-size: 10px; font-weight: 500;
  padding: 2px 8px; border-radius: 6px; line-height: 1.6;
}
.illo-pill--good { background: var(--color-good-soft); color: var(--color-good); }
.illo-pill--warn { background: var(--color-warn-soft); color: var(--color-warn); }
.illo-pill--accent { background: var(--color-accent-soft); color: var(--color-accent); }
.illo-pill--neutral { background: rgba(0,0,0,0.05); color: var(--color-ink-muted); }

/* AI prompt bubble */
.illo-prompt {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--color-paper-2); border: 1px solid var(--color-rule);
  border-radius: 12px; padding: 10px 14px;
  font-size: 12px; color: var(--color-ink-2); line-height: 1.5;
  max-width: 46ch;
}
.illo-prompt .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--color-accent); flex-shrink: 0;
}
.illo-prompt--float { margin-bottom: 16px; }

/* document mock (reconciliation statement / credit claim) */
.illo-doc__title { font-family: var(--font-display); font-size: 22px; letter-spacing: -0.01em; margin-bottom: 20px; }
.illo-doc__meta {
  display: grid; grid-template-columns: 1fr 1fr; gap: 4px 24px;
  font-size: 12px; margin-bottom: 20px;
}
.illo-doc__meta .k { color: var(--color-ink-muted); }
.illo-doc__meta .v { color: var(--color-ink); }
.illo-doc__rows { border-top: 1px solid var(--color-rule); font-size: 12px; }
.illo-doc__row {
  display: flex; justify-content: space-between; gap: 16px;
  padding: 9px 0; border-bottom: 1px solid var(--color-rule);
  color: var(--color-ink-2);
}
.illo-doc__row .amt { font-variant-numeric: tabular-nums; color: var(--color-ink); }
.illo-doc__row--total { font-weight: 600; color: var(--color-ink); }
.illo-doc__row--ok .amt { color: var(--color-good); font-weight: 600; }
.illo-doc__foot { font-size: 11px; color: var(--color-ink-muted); margin-top: 16px; line-height: 1.5; }

/* horizontal bars (root-cause aggregation) */
.illo-bars { display: flex; flex-direction: column; gap: 10px; }
.illo-bar { display: grid; grid-template-columns: 110px 1fr 48px; align-items: center; gap: 10px; font-size: 11px; }
.illo-bar .name { color: var(--color-ink-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.illo-bar .track { height: 8px; border-radius: 4px; background: var(--color-paper-2); overflow: hidden; }
.illo-bar .fill { height: 100%; border-radius: 4px; background: var(--color-accent); opacity: 0.85; }
.illo-bar .val { color: var(--color-ink-muted); text-align: right; font-variant-numeric: tabular-nums; }

/* tiny sparkline-ish barcode decoration (Midday's payment-score mark) */
.illo-ticks { display: flex; gap: 3px; align-items: flex-end; height: 18px; }
.illo-ticks i { display: block; width: 3px; background: var(--color-ink); height: 100%; }
.illo-ticks i:nth-child(2n) { height: 70%; }
.illo-ticks i:nth-child(3n) { height: 85%; }

/* ── CTA card ── */
.cta-card { max-width: var(--page-max); margin: 0 auto; padding: 0 var(--page-gutter); }
.cta-card__inner {
  background-color: var(--color-paper-2);
  background-image: url("data:image/svg+xml,%3Csvg width='6' height='6' viewBox='0 0 6 6' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%231c1917' fill-opacity='0.05' fill-rule='evenodd'%3E%3Cpath d='M5 0h1L0 6V5zM6 5v1H5z'/%3E%3C/g%3E%3C/svg%3E");
  background-size: 6px 6px;
  border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--color-rule);
  padding: 80px 48px; text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 16px;
  position: relative;
}
.cta-card__content { position: relative; z-index: 1; display: flex; flex-direction: column; align-items: center; gap: 12px; }
.cta-card__content .sub { margin-bottom: 8px; text-align: center; }
.cta-card__actions { display: flex; gap: 12px; }

/* ── Footer ── */
.footer { border-top: 1px solid var(--color-rule); padding: 56px 0 32px; margin-top: 80px; }
.footer__top {
  display: grid; grid-template-columns: 2fr repeat(3, 1fr); gap: 48px;
  padding-bottom: 40px; border-bottom: 1px solid var(--color-rule);
}
.footer__brand .logo {
  font-family: var(--font-display); font-weight: 600; font-size: 18px;
  color: var(--color-ink); display: flex; align-items: center; gap: 8px; margin-bottom: 12px;
}
.footer__brand .logo img.mark { width: 22px; height: auto; display: block; }
.footer__brand p { font-size: 14px; color: var(--color-ink-muted); max-width: 28ch; line-height: 1.5; }
.footer__col h4 {
  font-size: 12px; font-weight: 500; text-transform: uppercase;
  letter-spacing: 0.06em; color: var(--color-ink-muted); margin-bottom: 16px;
}
.footer__col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.footer__col a { font-size: 14px; color: var(--color-ink-2); transition: color var(--dur) ease; }
.footer__col a:hover { color: var(--color-ink); }
.footer__bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 20px; font-size: 13px; color: var(--color-ink-ghost);
}
.footer__socials { display: flex; gap: 16px; }
.footer__socials a { color: var(--color-ink-ghost); transition: color var(--dur) ease; }
.footer__socials a:hover { color: var(--color-ink-2); }

/* ── Responsive ── */
@media (max-width: 960px) {
  .uc-feature__inner, .uc-feature__inner--flip { grid-template-columns: 1fr; gap: 40px; }
  .uc-feature__inner--flip .uc-feature__text { order: 1; }
  .uc-feature__inner--flip .uc-feature__visual { order: 2; }
  .uc-icon-grid { grid-template-columns: repeat(2, 1fr); }
  .uc-stats-grid { grid-template-columns: 1fr; }
  .uc-stat-card--wide { flex-direction: column; align-items: flex-start; }
  .illo-stats--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .uc-hero { padding: 56px 0 48px; }
  .uc-hero__actions { flex-direction: column; align-items: center; }
  .uc-icon-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer__top { grid-template-columns: 1fr 1fr; gap: 32px; }
  .nav-links { display: none; }
  .illo, .illo--lg { padding: 20px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
}