/* Birch Page design system v3: light, white / gray / blue */
:root {
  --ink: #0f1b2d;          /* primary text */
  --muted: #536077;        /* secondary text on white: 6.3:1 */
  --blue: #1d4ed8;         /* brand blue: 6.7:1 on white */
  --blue-dark: #1e40af;
  --blue-soft: #eaf1ff;
  --blue-line: #c9d8fb;
  --bg: #ffffff;
  --gray: #f5f7fa;         /* light gray sections */
  --gray-2: #eef1f6;
  --line: #dde3ec;
  --red: #b42318; --red-bg: #fdecea;
  --green: #15803d; --green-bg: #e7f6ec;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  --sans: "Inter Tight", Inter, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: var(--sans); color: var(--ink); background: var(--bg); font-size: 17px; line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: var(--blue); }
a:focus-visible, summary:focus-visible, .btn:focus-visible { outline: 3px solid #f59e0b; outline-offset: 3px; border-radius: 4px; }
.skip { position: absolute; left: -999px; top: 10px; background: var(--ink); color: #fff; padding: 8px 14px; border-radius: 6px; z-index: 20; }
.skip:focus { left: 10px; }
.wrap { max-width: 1160px; margin: 0 auto; padding: 0 32px; }

/* Header */
.top { position: sticky; top: 0; z-index: 10; background: rgba(255,255,255,0.92); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo { display: flex; align-items: center; gap: 10px; white-space: nowrap; font-weight: 600; font-size: 18px; color: var(--ink); text-decoration: none; letter-spacing: -0.2px; }
.logo svg rect:first-child { fill: var(--ink); }
.logo svg rect:not(:first-child) { fill: #fff; }
.logo svg path { stroke: #60a5fa; }
nav { display: flex; align-items: center; gap: 30px; }
nav a { color: var(--muted); text-decoration: none; font-size: 15px; font-weight: 500; }
nav a:hover { color: var(--ink); }

/* Buttons */
.btn { display: inline-block; background: var(--blue); color: #fff !important; text-decoration: none; font-weight: 600; font-size: 15px; padding: 13px 22px; border-radius: 8px; border: 1px solid var(--blue); transition: background .15s, border-color .15s; box-shadow: 0 1px 2px rgba(15,27,45,.08); }
.btn:hover { background: var(--blue-dark); border-color: var(--blue-dark); }
.btn.sm { padding: 8px 15px; font-size: 14px; }
.btn.ghost { background: #fff; color: var(--ink) !important; border-color: var(--line); }
.btn.ghost:hover { border-color: var(--ink); background: #fff; }

/* Hero */
.hero { position: relative; text-align: center; padding: 88px 0 0; color: var(--ink); overflow: hidden;
  background:
    radial-gradient(800px 380px at 50% 0%, rgba(29,78,216,0.10), transparent 70%),
    linear-gradient(var(--bg), var(--gray)); }
.hero::before { content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(rgba(15,27,45,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(15,27,45,.045) 1px, transparent 1px);
  background-size: 44px 44px; mask-image: radial-gradient(700px 420px at 50% 30%, #000 30%, transparent 75%); -webkit-mask-image: radial-gradient(700px 420px at 50% 30%, #000 30%, transparent 75%); }
.hero .wrap { position: relative; }
.badge { display: inline-flex; align-items: center; gap: 10px; border: 1px solid var(--blue-line); background: #fff; color: var(--blue-dark); font-family: var(--mono); font-size: 12px; letter-spacing: 1.2px; text-transform: uppercase; padding: 7px 14px; border-radius: 99px; margin-bottom: 28px; }
.badge i { width: 7px; height: 7px; border-radius: 50%; background: var(--blue); display: inline-block; }
h1 { font-size: 64px; line-height: 1.04; letter-spacing: -2px; margin: 0 auto 18px; font-weight: 600; max-width: 15ch; color: var(--ink); }
.rule { display: flex; align-items: center; justify-content: center; gap: 16px; font-family: var(--mono); font-size: 13px; letter-spacing: 2.4px; text-transform: uppercase; color: var(--blue); margin: 0 0 22px; }
.rule::before, .rule::after { content: ""; width: 64px; height: 1px; background: var(--blue-line); }
.lede { font-size: 19px; color: var(--muted); margin: 0 auto 34px; max-width: 36em; }
.ctas { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.fine { margin-top: 18px; font-size: 14px; color: var(--muted); }

/* Document stack illustration */
.illus { font-family: var(--mono); font-size: 12px; letter-spacing: 1px; text-transform: uppercase; color: var(--muted); margin: 48px 0 0; }
.stack { position: relative; width: 460px; max-width: 100%; height: 320px; margin: 56px auto 0; }
.stack .lines i:nth-child(1) { width: 92%; } .stack .lines i:nth-child(2) { width: 76%; } .stack .lines i:nth-child(3) { width: 86%; } .stack .lines i:nth-child(4) { width: 63%; } .stack .lines i:nth-child(5) { width: 88%; } .stack .lines i:nth-child(6) { width: 69%; }
.sheet { position: absolute; background: #fff; border: 1px solid var(--line); border-radius: 6px; box-shadow: 0 24px 50px rgba(15,27,45,.12); }
.sheet.back1 { width: 300px; height: 290px; left: 10px; top: 40px; transform: rotate(-7deg); background: #f8fafc; }
.sheet.back2 { width: 300px; height: 290px; right: 0; top: 30px; transform: rotate(6deg); background: #f3f6fb; }
.sheet.front { width: 330px; left: 65px; top: 0; padding: 22px 24px 24px; text-align: left; transform: rotate(-1.5deg); color: var(--ink); }
.sheet .hd { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; gap: 10px; }
.sheet .file { font-family: var(--mono); font-size: 11px; letter-spacing: 1.4px; color: var(--muted); text-transform: uppercase; white-space: nowrap; }
.stamp { font-family: var(--mono); font-size: 10.5px; letter-spacing: 1.2px; background: var(--blue); color: #fff; padding: 5px 9px; border-radius: 4px; text-transform: uppercase; white-space: nowrap; }
.lines i { display: block; height: 7px; background: var(--gray-2); border-radius: 3px; margin: 9px 0; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 18px; }
.chip { font-family: var(--mono); font-size: 10px; letter-spacing: .8px; text-transform: uppercase; border: 1px solid var(--blue-line); background: var(--blue-soft); color: var(--blue-dark); padding: 4px 7px; border-radius: 4px; }
.hero-fade { height: 56px; background: linear-gradient(180deg, transparent, var(--bg)); margin-top: -36px; position: relative; }

/* Sections */
section { padding: 88px 0; }
.dark { background: var(--gray); }          /* kept class name; now a light gray band */
.alt { background: var(--gray); }
.kicker { font-family: var(--mono); font-size: 13px; font-weight: 500; letter-spacing: 2px; text-transform: uppercase; color: var(--blue); margin: 0 0 14px; }
h2.title { font-size: 44px; letter-spacing: -1.2px; line-height: 1.08; margin: 0 0 16px; font-weight: 600; color: var(--ink); max-width: 18ch; }
.intro { color: var(--muted); font-size: 18px; max-width: 38em; margin: 0 0 44px; }

/* "What is" bordered box */
.whatis { display: grid; grid-template-columns: 260px 1fr; border: 1px solid var(--line); background: #fff; border-radius: 10px; overflow: hidden; }
.whatis .lab { padding: 32px; border-right: 1px solid var(--line); background: var(--gray); font-family: var(--mono); font-size: 12px; letter-spacing: 1.6px; text-transform: uppercase; color: var(--muted); }
.whatis .body { padding: 32px 40px; font-size: 20px; line-height: 1.5; color: var(--ink); }
.whatis .tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; font-size: 14px; }
.whatis .tags span { background: var(--blue-soft); color: var(--blue-dark); border: 1px solid var(--blue-line); padding: 3px 10px; border-radius: 99px; }

/* Before/after board */
.board { border: 1px solid var(--line); border-radius: 12px; background: #fff; padding: 8px 28px; box-shadow: 0 10px 30px rgba(15,27,45,.06); }
.brow { display: grid; grid-template-columns: 1.4fr 1fr 1fr; align-items: center; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.brow:last-child { border-bottom: 0; }
.brow.head { font-family: var(--mono); font-size: 12px; letter-spacing: 1.4px; text-transform: uppercase; color: var(--muted); }
.brow .m { color: var(--ink); font-size: 16px; font-weight: 500; }
.flap { font-family: var(--mono); font-size: 15px; letter-spacing: 2px; padding: 6px 11px; border-radius: 6px; background: var(--gray); border: 1px solid var(--line); display: inline-block; color: var(--muted); }
.flap.bad { color: var(--red); background: var(--red-bg); border-color: #f6c9c3; }
.flap.good { color: var(--blue-dark); background: var(--blue-soft); border-color: var(--blue-line); }
.bnote { font-size: 14px; color: var(--muted); margin-top: 16px; }

/* Stats strip */
.stats { background: #fff; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.stats .wrap { display: grid; grid-template-columns: repeat(3, 1fr); }
.stat { padding: 36px 28px; border-left: 1px solid var(--line); }
.stat:first-child { border-left: 0; padding-left: 0; }
.stat strong { display: block; font-size: 38px; font-weight: 600; letter-spacing: -1px; line-height: 1.1; color: var(--blue); }
.stat span { color: var(--muted); font-size: 15px; }

/* Problem block */
.problem { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.problem p { color: var(--muted); font-size: 18px; margin: 0 0 16px; }
.quote { background: var(--blue-soft); color: var(--ink); border: 1px solid var(--blue-line); border-radius: 12px; padding: 32px; }
.quote p { color: var(--muted); margin: 0; font-size: 16px; }
.quote strong { color: var(--ink) !important; }
.quote .sr { font-family: var(--mono); font-size: 14px; color: var(--ink); background: #fff; border: 1px solid var(--blue-line); border-radius: 8px; padding: 14px 16px; margin: 14px 0; line-height: 1.8; }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.cards.two-up { grid-template-columns: repeat(2, 1fr); }
.card { padding: 32px; border: 1px solid var(--line); border-radius: 12px; background: #fff; }
.icon { width: 42px; height: 42px; border-radius: 10px; background: var(--blue-soft); display: grid; place-items: center; margin-bottom: 20px; }
.icon svg { stroke: var(--blue); }
.card h3 { margin: 0 0 8px; font-size: 21px; font-weight: 600; color: var(--ink); letter-spacing: -.3px; }
.card p { margin: 0; color: var(--muted); font-size: 16px; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; counter-reset: s; }
.step { position: relative; padding-top: 18px; border-top: 2px solid var(--blue); }
.step::before { counter-increment: s; content: "0" counter(s); display: block; font-family: var(--mono); font-size: 13px; letter-spacing: 1.5px; color: var(--blue); margin-bottom: 14px; }
.step h3 { margin: 0 0 6px; font-size: 21px; font-weight: 600; color: var(--ink); }
.step p { margin: 0; color: var(--muted); font-size: 16px; }

/* Pricing */
.prices { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: stretch; }
.price { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 30px; display: flex; flex-direction: column; }
.price.main { border: 2px solid var(--blue); box-shadow: 0 16px 40px rgba(29,78,216,.12); }
.price .name { font-family: var(--mono); font-size: 12px; letter-spacing: 1.6px; text-transform: uppercase; color: var(--muted); }
.price.main .name { color: var(--blue); }
.price .amt { font-size: 48px; font-weight: 600; letter-spacing: -1.5px; margin: 12px 0 4px; color: var(--ink); }
.price .amt small { font-size: 16px; font-weight: 400; color: var(--muted); letter-spacing: 0; }
.price .desc { color: var(--muted); font-size: 15px; margin: 0 0 18px; }
.price ul { list-style: none; padding: 0; margin: 0 0 26px; font-size: 15px; flex: 1; }
.price li { padding: 7px 0 7px 24px; position: relative; border-top: 1px solid var(--line); }
.price li::before { content: "✓"; position: absolute; left: 0; top: 7px; font-family: var(--mono); color: var(--blue); }
.ribbon { align-self: flex-start; font-family: var(--mono); font-size: 11px; letter-spacing: 1.2px; text-transform: uppercase; color: #fff; background: var(--blue); padding: 4px 9px; border-radius: 4px; margin-bottom: 14px; }

/* FAQ */
.faq { max-width: 800px; }
details { border-bottom: 1px solid var(--line); padding: 22px 0; }
summary { font-weight: 600; font-size: 19px; color: var(--ink); cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 20px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; font-family: var(--mono); font-size: 20px; line-height: 1; color: var(--blue); }
details[open] summary::after { content: "−"; }
details p { color: var(--muted); margin: 12px 0 0; }
details ol { color: var(--muted); margin: 12px 0 0; padding-left: 22px; }

/* Final CTA (blue band) */
.final { background: linear-gradient(135deg, #1d4ed8, #2563eb); color: #fff; border-radius: 16px; padding: 72px 64px; text-align: center; }
.final h2 { font-size: 42px; font-weight: 600; margin: 0 0 14px; letter-spacing: -1px; }
.final p { color: #dbe6ff; font-size: 18px; margin: 0 auto 32px; max-width: 34em; }
.final .btn { background: #fff; color: var(--blue-dark) !important; border-color: #fff; }
.final .btn:hover { background: var(--blue-soft); }

/* Paths */
.paths { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.path { display: block; text-decoration: none; color: inherit; padding: 34px; border: 1px solid var(--line); border-radius: 12px; background: #fff; transition: border-color .15s, box-shadow .15s; }
.path:hover { border-color: var(--blue); box-shadow: 0 12px 30px rgba(29,78,216,.10); }
.path h3 { margin: 0 0 8px; font-size: 22px; font-weight: 600; color: var(--ink); }
.path p { margin: 0 0 16px; color: var(--muted); font-size: 16px; }
.path .go { font-family: var(--mono); font-size: 13px; letter-spacing: 1px; text-transform: uppercase; color: var(--blue); }

footer { padding: 40px 0 52px; color: var(--muted); font-size: 14px; border-top: 1px solid var(--line); background: #fff; }
footer .wrap { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
footer address { font-style: normal; }
.ph { background: #fff1b8; color: #5c4400; padding: 0 5px; border-radius: 3px; font-weight: 600; }

@media (max-width: 900px) {
  h1 { font-size: 42px; letter-spacing: -1.2px; }
  h2.title { font-size: 34px; }
  nav a:not(.btn) { display: none; }
  .problem, .cards, .cards.two-up, .steps, .prices, .paths, .stats .wrap, .whatis { grid-template-columns: 1fr; }
  .whatis .lab { border-right: 0; border-bottom: 1px solid var(--line); }
  .stat { border-left: 0; border-top: 1px solid var(--line); padding: 22px 0; }
  .stat:first-child { border-top: 0; }
  .brow { grid-template-columns: 1fr; gap: 8px; }
  .brow.head { display: none; }
  .final { padding: 44px 24px; }
  .stack { transform: scale(.82); transform-origin: top center; }
}

/* ===== Shared page components (v3.1): use these, no inline styles ===== */
/* Sub-page hero: left-aligned, smaller H1 */
.hero.page { text-align: left; padding: 64px 0 56px; }
.hero.page h1 { font-size: 48px; letter-spacing: -1.4px; line-height: 1.08; margin: 0 0 14px; max-width: 20ch; }
.hero.page .lede { margin: 0 0 28px; max-width: 40em; }
.hero.page .lede:last-child { margin-bottom: 0; }
.hero.page .ctas { justify-content: flex-start; }
.hero.page .badge { margin-bottom: 22px; }
.badge.warn { background: #fff7d6; color: #6b4f00; border-color: #f1df9a; }
.badge.warn i { background: #c58a00; }
.narrow { max-width: 900px; }
.prose { max-width: 760px; }
/* Sub-page sections */
.band { padding: 64px 0; }
.band.gray { background: var(--gray); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
h2.sub { font-size: 28px; letter-spacing: -.6px; line-height: 1.2; font-weight: 600; margin: 0 0 10px; color: var(--ink); }
.sub-lead { font-size: 17px; color: var(--muted); margin: 0 0 22px; }
.band p, .band li { font-size: 17px; }
.band ul { padding-left: 22px; margin: 0; }
.band li { margin-bottom: 8px; }
.mt { margin-top: 32px; }
/* Data tables */
table.data { width: 100%; border-collapse: collapse; font-size: 16px; background: #fff; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
table.data th, table.data td { text-align: left; padding: 16px 18px; border-bottom: 1px solid var(--line); vertical-align: top; }
table.data tr:last-child th, table.data tr:last-child td { border-bottom: 0; }
table.data thead th { background: var(--gray); font-size: 14px; font-weight: 600; color: var(--ink); }
table.data tbody th { font-weight: 600; }
.ok { color: var(--green); font-weight: 600; }
.no { color: var(--red); font-weight: 600; }
/* Notes */
.note { background: var(--gray); border: 1px solid var(--line); border-radius: 12px; padding: 20px 24px; color: var(--muted); font-size: 15px; }
.note strong { color: var(--ink); }
/* Terms / prose pages */
.prose h2 { font-size: 22px; font-weight: 600; letter-spacing: -.3px; margin: 36px 0 8px; }
.prose h2:first-child { margin-top: 0; }
.prose p, .prose li { font-size: 17px; color: var(--ink); }
.prose ul { padding-left: 22px; }
.meta { color: var(--muted); font-size: 15px; }
/* Footer links */
footer .links a { color: var(--muted); }
footer .links a:hover { color: var(--blue); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
/* Contact band sits directly after another section */
section.cta-sec { padding-top: 0; }
@media (max-width: 900px) { .hero.page h1 { font-size: 36px; } .band { padding: 48px 0; } table.data { font-size: 14px; } table.data th, table.data td { padding: 10px 10px; } table.data thead th { font-size: 13px; } }

/* Request form */
.final.form-wrap { text-align: left; display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 48px; align-items: start; }
.final.form-wrap h2 { margin-bottom: 12px; }
.final.form-wrap p { margin: 0 0 14px; }
.final .next { list-style: none; padding: 0; margin: 18px 0 0; color: #dbe6ff; font-size: 16px; }
.final .next li { padding: 6px 0 6px 28px; position: relative; }
.final .next li::before { content: "✓"; position: absolute; left: 0; color: #fff; font-weight: 700; }
.final .alt-contact { font-size: 15px; color: #dbe6ff; margin-top: 18px; }
.final .alt-contact a { color: #fff; }
form.req { background: #fff; color: var(--ink); border-radius: 14px; padding: 28px; display: grid; gap: 14px; }
form.req .row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
form.req label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; }
form.req .hint { font-weight: 400; color: var(--muted); }
form.req p.hint { font-size: 14px; margin: -2px 0 6px; }
form.req button:focus-visible { outline: 3px solid #f59e0b; outline-offset: 3px; }
form.req button[disabled] { opacity: .7; cursor: wait; }
form.req input, form.req select, form.req textarea { width: 100%; font: inherit; font-size: 16px; color: var(--ink); background: #fff; border: 1px solid #7d8799; border-radius: 8px; padding: 11px 12px; }
form.req textarea { min-height: 96px; resize: vertical; }
form.req input:focus, form.req select:focus, form.req textarea:focus { outline: 3px solid #93b4ff; outline-offset: 1px; border-color: var(--blue); }
form.req .hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
form.req .small { font-size: 13px; color: var(--muted); margin: 0; }
form.req button { justify-self: start; font: inherit; font-weight: 600; font-size: 15px; background: var(--blue); color: #fff; border: 0; border-radius: 8px; padding: 13px 22px; cursor: pointer; }
form.req button:hover { background: var(--blue-dark); }
@media (max-width: 900px) { .final.form-wrap { grid-template-columns: 1fr; gap: 28px; padding: 36px 20px; } form.req .row2 { grid-template-columns: 1fr; } form.req { padding: 20px; } }

.card .price-note { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); font-family: var(--mono); font-size: 13px; color: var(--blue); }


/* Why Birch Page */
.why-strip { padding: 96px 0; border-bottom: 1px solid var(--line); }
.why-strip ul { list-style: none; margin: 40px 0 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; }
.why-strip li { border-top: 2px solid var(--blue); padding-top: 18px; }
.why-strip strong { display: block; font-size: 18px; font-weight: 600; color: var(--ink); margin-bottom: 6px; }
.why-strip span { display: block; font-size: 16px; line-height: 1.5; color: var(--muted); }
@media (max-width: 900px) { .why-strip ul { grid-template-columns: 1fr 1fr; gap: 28px; } }
.quote .q-label { font-family: var(--mono); font-size: 12px; letter-spacing: 1px; text-transform: uppercase; color: var(--blue); margin: 0 0 18px; }
.quote .q-row { display: flex; justify-content: space-between; align-items: baseline; padding: 16px 0; border-top: 1px solid var(--line); font-size: 17px; }
.quote .q-row span { color: var(--muted); }
.quote .q-row .no { color: #b42318; } .quote .q-row .ok { color: var(--blue); }
.quote .q-foot { margin: 16px 0 0; font-size: 15px; }