/* Rillwork beta landing page. No external fonts, no frameworks. */
:root {
  --navy: #14202e;
  --navy-2: #1e2d3f;
  --ink: #1f2937;
  --muted: #4b5563;
  --line: #d9dde3;
  --bg: #ffffff;
  --bg-soft: #f3f6f8;
  --teal: #0e7490;
  --teal-dark: #0b5c72;
  --teal-soft: #e0f2f6;
  --warn-bg: #fff7e0;
  --warn-line: #f0d58a;
  --error: #b42318;
  --error-bg: #fdeceb;
  --error-line: #f2b8b5;
  --radius: 10px;
  --max: 70rem;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  --mono: ui-monospace, "Cascadia Mono", Consolas, "SF Mono", Menlo, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }
body { margin: 0; font-family: var(--font); color: var(--ink); background: var(--bg); line-height: 1.6; font-size: 1.0625rem; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--teal-dark); text-underline-offset: 0.15em; }
a:hover { color: var(--teal); }
:focus-visible { outline: 3px solid #f59e0b; outline-offset: 2px; border-radius: 3px; }
code, kbd { font-family: var(--mono); font-size: 0.92em; background: var(--bg-soft); padding: 0.05em 0.3em; border-radius: 4px; }
h1, h2, h3 { line-height: 1.2; color: var(--navy); }
h2 { font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2rem); margin: 0 0 0.75rem; }
h3 { font-size: 1.125rem; margin: 0 0 0.35rem; }
p { margin: 0 0 1rem; }

.skip { position: absolute; left: -999px; top: 0; background: #fff; color: var(--navy); padding: 0.5rem 1rem; z-index: 10; }
.skip:focus { left: 0.5rem; top: 0.5rem; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 1.25rem; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Top bar */
.topbar { background: var(--navy); color: #fff; }
.topbar .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 3.5rem; flex-wrap: wrap; }
.brand { display: inline-flex; align-items: center; gap: 0.55rem; color: #fff; text-decoration: none; font-weight: 700; font-size: 1.1rem; }
.brand:hover { color: #fff; }
.brand-mark { width: 1.35rem; height: 1.35rem; border-radius: 4px; background: linear-gradient(180deg, #5fd0e3 0 45%, var(--teal) 45% 100%); }
.brand small { font-weight: 400; color: #b8c0ca; font-size: 0.8rem; }
.topnav { display: flex; gap: 0.25rem 1.1rem; flex-wrap: wrap; font-size: 0.95rem; }
.topnav a { color: #dbe3ea; text-decoration: none; padding: 0.3rem 0; }
.topnav a:hover { color: #fff; text-decoration: underline; }

/* Buttons */
.btn { display: inline-block; padding: 0.75rem 1.25rem; border-radius: 8px; font-weight: 600; text-decoration: none; border: 2px solid transparent; line-height: 1.2; }
.btn-primary { background: var(--teal); color: #fff; }
.btn-primary:hover { background: var(--teal-dark); color: #fff; }
.btn-ghost { border-color: currentColor; color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,0.1); color: #fff; }
.btn-outline { border-color: var(--teal); color: var(--teal-dark); background: #fff; }
.btn-outline:hover { background: var(--teal-soft); }

/* Hero */
.hero { position: relative; background: var(--navy); color: #fff; overflow: hidden; isolation: isolate; }
.hero-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 70% 60%; z-index: -2; }
.hero::before { content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(90deg, rgba(20,32,46,0.96) 0%, rgba(20,32,46,0.88) 42%, rgba(20,32,46,0.35) 75%, rgba(20,32,46,0.15) 100%); }
.hero .wrap { padding-top: clamp(3rem, 8vw, 6rem); padding-bottom: clamp(3rem, 8vw, 6rem); }
.hero-text { max-width: 36rem; }
.eyebrow { display: inline-block; font-size: 0.85rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: #9fe3ee; margin-bottom: 0.75rem; }
.hero h1 { color: #fff; font-size: clamp(2rem, 1.4rem + 3vw, 3.25rem); margin: 0 0 1rem; }
.hero .lead { font-size: clamp(1.05rem, 1rem + 0.4vw, 1.25rem); color: #e5ebf0; }
.hero code { background: rgba(255,255,255,0.14); color: #fff; }
.cta-row { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 1.5rem 0 1rem; }
.price-note { font-size: 0.95rem; color: #cfd8e0; margin: 0; }
.price-note strong { color: #fff; }

/* Sections */
section { padding: clamp(2.5rem, 6vw, 4.5rem) 0; }
section.alt { background: var(--bg-soft); }
.section-intro { max-width: 46rem; color: var(--muted); margin-bottom: 2rem; }
.grid { display: grid; gap: 1.25rem; }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr)); align-items: center; gap: 2rem; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 1.1rem 1.2rem; }
.card p { margin: 0; color: var(--muted); font-size: 0.98rem; }
.card .tag { display: inline-block; font-size: 0.75rem; font-weight: 600; background: var(--warn-bg); border: 1px solid var(--warn-line); color: #6b4e00; border-radius: 999px; padding: 0.05rem 0.55rem; margin-left: 0.35rem; vertical-align: middle; }
.checks { list-style: none; padding: 0; margin: 0 0 1rem; }
.checks li { position: relative; padding-left: 1.75rem; margin-bottom: 0.6rem; }
.checks li::before { content: ""; position: absolute; left: 0.2rem; top: 0.45em; width: 0.65rem; height: 0.35rem; border-left: 3px solid var(--teal); border-bottom: 3px solid var(--teal); transform: rotate(-45deg); }

/* Figures */
figure { margin: 0; }
.shot { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; box-shadow: 0 1px 2px rgba(0,0,0,0.04), 0 8px 24px rgba(20,32,46,0.08); }
figcaption { font-size: 0.92rem; color: var(--muted); padding: 0.6rem 0.25rem 0; }
.gallery { display: grid; gap: 1.5rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 24rem), 1fr)); margin-top: 2rem; }
.gallery .wide { grid-column: 1 / -1; }
.illus { border-radius: var(--radius); overflow: hidden; }

/* Engine statement */
.engine-box { border-left: 4px solid var(--teal); background: #fff; padding: 1.25rem 1.5rem; border-radius: 0 var(--radius) var(--radius) 0; }
.stat-row { display: flex; flex-wrap: wrap; gap: 1rem 2.5rem; margin: 1.25rem 0; }
.stat { min-width: 9rem; }
.stat b { display: block; font-size: 1.9rem; color: var(--navy); line-height: 1.1; }
.stat span { color: var(--muted); font-size: 0.92rem; }

/* Notice */
.notice { background: var(--warn-bg); border: 1px solid var(--warn-line); border-radius: var(--radius); padding: 0.9rem 1.1rem; }
.notice p:last-child { margin-bottom: 0; }

/* FAQ */
.faq details { border-bottom: 1px solid var(--line); padding: 0.9rem 0; }
.faq summary { cursor: pointer; font-weight: 600; color: var(--navy); list-style-position: outside; }
.faq details p { margin: 0.6rem 0 0; color: var(--ink); }
.faq { max-width: 50rem; }

/* Sign-up */
.signup-box { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 1.25rem; }
#signup .grid-2 { align-items: start; }
.signup-box [hidden] { display: none !important; }
.signup-box a { overflow-wrap: anywhere; }
.form-intro { font-weight: 600; color: var(--navy); }
.form-pending { border: 2px dashed var(--warn-line); background: var(--warn-bg); border-radius: var(--radius); padding: 0.9rem 1.1rem; }
.field { margin: 0 0 1.35rem; padding: 0; border: 0; min-width: 0; }
.field > label, .field legend, .other-wrap label { display: block; font-weight: 600; color: var(--navy); margin: 0 0 0.4rem; padding: 0; }
.field legend { max-width: 100%; white-space: normal; }
.req { color: var(--error); font-weight: 700; }
.signup-form input[type="email"], .signup-form input[type="text"], .signup-form textarea {
  display: block; width: 100%; font: inherit; color: var(--ink); background: #fff;
  border: 1px solid #9aa4b0; border-radius: 8px; padding: 0.6rem 0.75rem; }
.signup-form textarea { min-height: 6.5rem; resize: vertical; }
.signup-form ::placeholder { color: #6b7280; opacity: 1; }
.choice { display: flex; align-items: flex-start; gap: 0.6rem; padding: 0.3rem 0; cursor: pointer; line-height: 1.4; }
.choice input { flex: none; width: 1.15rem; height: 1.15rem; margin: 0.16rem 0 0; accent-color: var(--teal); }
.other-wrap { margin: 0.35rem 0 0.25rem 1.75rem; }
.other-wrap label { font-weight: 400; font-size: 0.95rem; }
.field-error { color: var(--error); font-weight: 600; font-size: 0.92rem; margin: 0.35rem 0 0; }
.signup-form [aria-invalid="true"]:is(input, textarea) { border-color: var(--error); box-shadow: 0 0 0 1px var(--error); }
.field.has-error { border-left: 3px solid var(--error); padding-left: 0.75rem; }
.turnstile-box { min-height: 65px; max-width: 100%; }
.form-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem 1rem; }
.form-status { margin: 0; color: var(--muted); font-size: 0.95rem; }
button.btn { font: inherit; font-weight: 600; cursor: pointer; }
button.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.form-alert { margin-top: 1rem; background: var(--error-bg); border: 1px solid var(--error-line); border-radius: var(--radius); padding: 0.9rem 1.1rem; }
.form-alert p { margin: 0 0 0.75rem; }
.form-done { background: var(--teal-soft); border-radius: var(--radius); padding: 1.1rem 1.25rem; margin-bottom: 1rem; }
.form-done:focus { outline: none; }
.form-done p:last-child { margin-bottom: 0; }
.form-privacy { margin: 1rem 0 0; }
.small { font-size: 0.9rem; color: var(--muted); }

/* Footer */
.footer { background: var(--navy); color: #cfd8e0; padding: 2.5rem 0; font-size: 0.92rem; }
.footer a { color: #e5ebf0; }
.footer a:hover { color: #fff; }
.footer ul { list-style: none; padding: 0; margin: 0 0 1rem; display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; }
.footer p { margin: 0 0 0.6rem; }

/* Sub-pages (engine check, legal) */
.page { padding: 2.5rem 0 3.5rem; }
.page .wrap { max-width: 52rem; }
.page h1 { font-size: clamp(1.75rem, 1.4rem + 1.5vw, 2.4rem); margin: 0 0 1rem; }
.page h2 { font-size: 1.4rem; margin-top: 2rem; }
.page h3 { margin-top: 1.5rem; }
.table-scroll { overflow-x: auto; margin: 1rem 0 1.5rem; }
table { border-collapse: collapse; width: 100%; font-size: 0.95rem; }
th, td { text-align: left; padding: 0.45rem 0.6rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: var(--bg-soft); color: var(--navy); }
blockquote { margin: 1rem 0; padding: 0.5rem 1rem; border-left: 4px solid var(--line); color: var(--muted); }
.draft-banner { background: var(--warn-bg); border: 1px solid var(--warn-line); padding: 0.75rem 1rem; border-radius: var(--radius); margin-bottom: 1.5rem; }

@media (max-width: 40rem) {
  body { font-size: 1rem; }
  .hero::before { background: linear-gradient(180deg, rgba(20,32,46,0.9) 0%, rgba(20,32,46,0.86) 100%); }
  .topnav { font-size: 0.9rem; }
  .btn { width: 100%; text-align: center; }
}

/* Print: plain document, no images that waste ink, URLs shown after key links. */
@media print {
  @page { margin: 16mm; }
  body { font-size: 11pt; color: #000; background: #fff; }
  .topnav, .skip, .cta-row, .hero-img, .signup-form, .no-print { display: none !important; }
  .hero, .footer, .topbar { background: #fff !important; color: #000 !important; }
  .hero::before { display: none; }
  .hero code { background: none; color: #000; }
  .hero h1, .hero .lead, .price-note, .price-note strong, .eyebrow, .brand, .footer a, .footer { color: #000 !important; }
  section, section.alt { padding: 1rem 0; background: #fff; }
  .card, .shot, .engine-box, .signup-box { box-shadow: none; break-inside: avoid; }
  .gallery { display: block; }
  .gallery figure { break-inside: avoid; margin-bottom: 1rem; }
  .gallery img { max-width: 80%; }
  .illus { display: none; }
  .faq details { break-inside: avoid; }
  .faq details > *:not(summary) { display: block; }
  a.print-url::after { content: " (" attr(href) ")"; font-size: 0.9em; word-break: break-all; }
}