/* AuditSampler Pro landing. Workpaper look: white sheet, navy ink, red tickmarks. */

:root {
    --paper: #F4F6F7;
    --sheet: #FFFFFF;
    --ink: #13233A;
    --text: #46535F;
    --rule: #D5DCE2;
    --grid: #E9EDF0;
    --tick: #C3122F;
    --navy: #1F3A5F;
    --side: #14283F;
    --flag: #B45309;
    --ok: #1F7A4D;
}

* { box-sizing: border-box; margin: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
    font-family: 'IBM Plex Sans', system-ui, sans-serif;
    background: var(--sheet);
    color: var(--ink);
    font-size: 16.5px;
    line-height: 1.55;
    font-variant-numeric: tabular-nums;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
:focus-visible { outline: 2px solid var(--tick); outline-offset: 2px; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
.cond { font-family: 'IBM Plex Sans Condensed', 'IBM Plex Sans', sans-serif; }
.muted { color: var(--text); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

/* Buttons */
.btn {
    display: inline-block;
    background: var(--navy);
    color: #fff;
    padding: 11px 20px;
    border: 0;
    border-radius: 4px;
    font-family: inherit;
    font-size: 15px;
    font-weight: 600;
    line-height: 1.4;
    text-decoration: none;
    cursor: pointer;
    white-space: nowrap;
}
.btn:hover { background: var(--ink); }
.btn:disabled { opacity: .6; cursor: wait; }
.btn.ghost { background: var(--sheet); color: var(--ink); border: 1px solid var(--rule); }
.btn.ghost:hover { border-color: var(--ink); }

/* Nav */
.nav { background: var(--sheet); border-bottom: 1px solid var(--rule); position: sticky; top: 0; z-index: 10; }
.nav-inner { display: flex; align-items: center; height: 64px; gap: 28px; }
.logo { font-weight: 700; font-size: 18px; display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.logo svg { width: 26px; height: 26px; }
.nav-links { display: flex; gap: 26px; margin-left: auto; font-size: 15px; color: var(--text); }
.nav-links a { text-decoration: none; }
.nav-links a:hover { color: var(--ink); }
.lang { display: flex; border: 1px solid var(--rule); border-radius: 4px; overflow: hidden; font-size: 13px; font-weight: 600; }
.lang button { border: 0; background: none; padding: 5px 10px; font: inherit; color: var(--text); cursor: pointer; }
.lang button[aria-pressed="true"] { background: var(--ink); color: #fff; }

/* Hero */
.hero { padding: 72px 0 88px; background: var(--paper); border-bottom: 1px solid var(--rule); }
.hero-inner { display: grid; grid-template-columns: 1fr 1.08fr; gap: 56px; align-items: start; }
.hero-inner > * { min-width: 0; }
.status { font-size: 14px; color: var(--text); margin-bottom: 20px; display: flex; align-items: center; gap: 8px; }
.status i { width: 8px; height: 8px; border-radius: 50%; background: var(--tick); flex: none; }
h1 { font-size: 46px; line-height: 1.1; letter-spacing: -.02em; font-weight: 700; max-width: 13ch; }
.lede { font-size: 18px; color: var(--text); margin: 22px 0 30px; max-width: 46ch; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; }
.std { margin-top: 40px; display: flex; flex-wrap: wrap; gap: 8px; font-size: 13px; color: var(--text); list-style: none; padding: 0; }
.std li { border: 1px solid var(--rule); background: var(--sheet); padding: 3px 9px; border-radius: 3px; }

/* Workpaper calculator */
.wp { background: var(--sheet); border: 1px solid var(--rule); box-shadow: 0 18px 40px -24px rgba(19, 35, 58, .35); font-size: 14px; }
.wp-head { display: grid; grid-template-columns: 1fr auto; gap: 16px; border-bottom: 2px solid var(--ink); padding: 14px 18px; }
.wp-head h2 { font-size: 15px; font-weight: 600; letter-spacing: 0; max-width: none; }
.wp-head p { color: var(--text); font-size: 13px; }
.ref { font-size: 22px; color: var(--tick); align-self: center; }
.wp table { width: 100%; border-collapse: collapse; }
.wp td { padding: 9px 18px; border-bottom: 1px solid var(--grid); }
.wp td:last-child { text-align: right; width: 44%; white-space: nowrap; }
.wp td.l { color: var(--text); }
.wp label { display: block; }
.wp input, .wp select {
    font: inherit;
    font-variant-numeric: tabular-nums;
    text-align: right;
    border: 1px solid var(--rule);
    border-radius: 3px;
    padding: 5px 8px;
    width: 100%;
    max-width: 170px;
    background: #FBFCFD;
    color: var(--ink);
}
.wp input:focus, .wp select:focus { border-color: var(--navy); background: #fff; }
.wp input[aria-invalid="true"] { border-color: var(--tick); }
.out td { background: #FAFBFC; }
.tk { color: var(--tick); font-weight: 700; margin-left: 6px; }
.total td { border-top: 2px solid var(--ink); border-bottom: 3px double var(--ink); font-weight: 700; font-size: 17px; background: var(--sheet); }
.total .n { font-size: 30px; }
.formula { padding: 12px 18px; color: var(--text); font-size: 13px; border-bottom: 1px solid var(--grid); }
.formula .err { color: var(--tick); }
.sign { display: grid; grid-template-columns: 1fr 1fr 1.3fr; font-size: 12.5px; }
.sign div { padding: 10px 18px; border-right: 1px solid var(--grid); }
.sign div:last-child { border: 0; color: var(--text); }
.sign b { display: block; font-weight: 600; color: var(--ink); }
.sign .pending { color: var(--text); font-style: italic; }

/* Sections */
.sec { padding: 88px 0; border-bottom: 1px solid var(--rule); }
.sec.alt { background: var(--paper); }
h2 { font-size: 32px; letter-spacing: -.015em; line-height: 1.2; max-width: 26ch; }
.intro { color: var(--text); max-width: 62ch; margin: 12px 0 40px; font-size: 17px; }

/* App window */
.win { border: 1px solid #C9D3DB; border-radius: 8px; overflow: hidden; box-shadow: 0 30px 60px -34px rgba(19, 35, 58, .5); background: #fff; font-size: 13.5px; }
.bar { height: 34px; background: #E8EDF1; display: flex; align-items: center; padding: 0 12px; gap: 7px; border-bottom: 1px solid #D2DAE1; color: var(--text); font-size: 12.5px; }
.bar i { width: 11px; height: 11px; border-radius: 50%; background: #C5CED6; }
.bar span { margin-left: 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.body { display: grid; grid-template-columns: 210px 1fr; min-height: 420px; }
.side { background: var(--side); color: #B9C7D3; padding: 16px 0; }
.side h6 { font-size: 11.5px; font-weight: 600; color: #7F93A5; padding: 6px 18px; }
.side a { display: block; padding: 7px 18px; }
.side a.on { background: rgba(255, 255, 255, .08); color: #fff; border-left: 3px solid var(--tick); padding-left: 15px; }
.main { padding: 18px 22px; min-width: 0; }
.crumbs { color: var(--text); font-size: 12.5px; }
.main h4 { font-size: 18px; margin: 2px 0 14px; }
.kpis { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--rule); border-radius: 4px; margin-bottom: 16px; }
.kpis div { padding: 10px 14px; border-right: 1px solid var(--rule); }
.kpis div:last-child { border: 0; }
.kpis small { display: block; color: var(--text); font-size: 12px; }
.kpis b { font-size: 18px; white-space: nowrap; }
.items { width: 100%; border-collapse: collapse; }
.items th { text-align: left; font-weight: 600; color: var(--text); font-size: 12px; border-bottom: 1px solid var(--rule); padding: 6px 8px; }
.items td { padding: 7px 8px; border-bottom: 1px solid #EEF2F5; white-space: nowrap; }
.items .r { text-align: right; }
.items .t { color: var(--tick); font-weight: 700; }
.items tr.flag td { background: #FFF7ED; }
.items tr.flag .t { color: var(--flag); }
.tag { font-size: 11.5px; padding: 1px 7px; border-radius: 10px; background: #E7F4EC; color: var(--ok); font-weight: 600; }
tr.flag .tag { background: #FDECD7; color: var(--flag); }
.caption { color: var(--text); font-size: 14px; margin-top: 14px; }

/* Flow diagram */
.flow { display: grid; grid-template-columns: 1fr 2.6fr 1fr; align-items: stretch; }
.node { border: 1px solid var(--ink); background: var(--sheet); padding: 18px; }
.node h3 { font-size: 17px; margin-bottom: 6px; }
.node p { font-size: 14.5px; color: var(--text); }
.mid { display: grid; grid-template-rows: repeat(3, 1fr); gap: 12px; padding: 0 36px; position: relative; }
.mid::before, .mid::after { content: ""; position: absolute; top: 50%; width: 36px; border-top: 1px solid var(--ink); }
.mid::before { left: 0; }
.mid::after { right: 0; }
.mid .node { border-color: var(--rule); display: grid; grid-template-columns: 180px 1fr; gap: 16px; align-items: baseline; }
.mid .node h3 { font-size: 15.5px; margin: 0; }
.node.end { border-width: 2px; }

/* Methods table */
.methods { width: 100%; border-collapse: collapse; }
.methods th { text-align: left; font-weight: 600; font-size: 14px; color: var(--text); padding: 10px 16px; border-bottom: 2px solid var(--ink); }
.methods td { padding: 16px; vertical-align: top; border-bottom: 1px solid var(--rule); }
.methods td:first-child { font-weight: 600; width: 24%; }
.methods td:nth-child(2) { width: 20%; color: var(--text); }
.methods td:nth-child(3) { width: 13%; }
.s { font-size: 13px; border: 1px solid var(--rule); padding: 2px 7px; border-radius: 3px; white-space: nowrap; background: var(--sheet); }

/* Methodology + privacy */
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; }
.two > * { min-width: 0; }
.factors { width: 100%; border-collapse: collapse; font-size: 15px; background: var(--sheet); border: 1px solid var(--rule); }
.factors th, .factors td { padding: 10px 16px; border-bottom: 1px solid var(--grid); text-align: right; }
.factors th:first-child, .factors td:first-child { text-align: left; }
.factors th { font-weight: 600; color: var(--text); font-size: 13.5px; border-bottom: 2px solid var(--ink); }
.biblio { margin-top: 28px; padding: 0; list-style: none; font-size: 14.5px; color: var(--text); }
.biblio li { padding: 8px 0; border-top: 1px solid var(--rule); }
.points { list-style: none; padding: 0; margin-top: 28px; }
.points li { padding: 16px 0; border-top: 1px solid var(--rule); }
.points b { display: block; font-size: 17px; margin-bottom: 2px; }
.points span { color: var(--text); }

/* FAQ */
.faq { max-width: 868px; }
.faq-list { margin-top: 32px; }
details { border-top: 1px solid var(--rule); padding: 18px 0; }
details:last-of-type { border-bottom: 1px solid var(--rule); }
summary { font-weight: 600; font-size: 17.5px; cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 24px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--text); font-weight: 400; font-size: 22px; line-height: 1; }
details[open] summary::after { content: "−"; }
details p { color: var(--text); margin-top: 10px; max-width: 70ch; }

/* Waitlist */
.join { background: var(--ink); color: #fff; padding: 88px 0; }
.join-inner { display: grid; grid-template-columns: 1.1fr 1fr; gap: 56px; align-items: center; }
.join-inner > * { min-width: 0; }
.join h2 { color: #fff; }
.join p { color: #B8C4D2; margin-top: 12px; max-width: 50ch; }
.join p a { color: #fff; }
.form-card { background: var(--sheet); color: var(--ink); padding: 28px; border-radius: 4px; }
.form-card label { font-weight: 600; font-size: 14px; display: block; margin-bottom: 6px; }
.form-card .row { display: flex; gap: 10px; }
.form-card input { flex: 1; min-width: 0; font: inherit; padding: 11px 12px; border: 1px solid var(--rule); border-radius: 4px; color: var(--ink); }
.form-card input:focus { border-color: var(--navy); outline: none; box-shadow: 0 0 0 2px rgba(31, 58, 95, .2); }
.form-card small { display: block; color: var(--text); margin-top: 12px; font-size: 13.5px; }
.form-card small.error { color: var(--tick); }
.join .success { color: var(--ink); margin: 0; font-weight: 600; }

/* Footer */
.footer { padding: 48px 0; color: var(--text); font-size: 14.5px; }
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; }
.footer p { margin-top: 10px; max-width: 36ch; }
.footer .copy { font-size: 13px; }
.footer h5 { color: var(--ink); font-size: 14px; margin-bottom: 10px; }
.footer ul { list-style: none; padding: 0; }
.footer li { padding: 3px 0; }
.footer a { text-decoration: none; }
.footer a:hover { color: var(--ink); }

@media (max-width: 960px) {
    .nav-links, .nav-cta { display: none; }
    .lang { margin-left: auto; }
    .hero { padding: 48px 0 64px; }
    .hero-inner, .two, .join-inner { grid-template-columns: 1fr; gap: 40px; }
    h1 { font-size: 36px; }
    h2 { font-size: 27px; }
    .sec, .join { padding: 64px 0; }
    .wp td:last-child { width: 46%; }
    .sign { grid-template-columns: 1fr 1fr; }
    .sign div:last-child { grid-column: 1 / -1; border-top: 1px solid var(--grid); }
    .body { grid-template-columns: 1fr; }
    .side { display: none; }
    .main { overflow-x: auto; }
    .items { min-width: 560px; }
    .kpis { grid-template-columns: 1fr 1fr; }
    .kpis div:nth-child(2) { border-right: 0; }
    .kpis div:nth-child(-n+2) { border-bottom: 1px solid var(--rule); }
    .flow { grid-template-columns: 1fr; gap: 12px; }
    .mid { padding: 0; }
    .mid::before, .mid::after { display: none; }
    .mid .node { grid-template-columns: 1fr; gap: 4px; }
    .methods th:nth-child(2), .methods td:nth-child(2) { display: none; }
    .methods td { padding: 14px 8px; }
    .methods th { padding: 10px 8px; }
    .form-card .row { flex-direction: column; }
    .footer-inner { grid-template-columns: 1fr 1fr; }
    .footer-inner > div:first-child { grid-column: 1 / -1; }
}
@media (max-width: 420px) {
    .wp td { padding: 8px 12px; }
    .wp input, .wp select { max-width: 140px; }
}