/* Two Dogs AI — twodogs.ai
 *
 * Warm paper and charcoal ink, taken from the logo. One accent, used sparingly.
 * No web fonts and no scripts: the page is readable before anything but this
 * file has loaded. Light only, because the logo is line art drawn for paper and
 * reads as a photographic negative when inverted.
 */

:root {
  --paper: #faf9f5;
  --paper-deep: #f2f0e8;
  --ink: #262c2a;
  --ink-soft: #4d5552;
  --rule: #e2dfd4;
  --accent: #a4622a;
  --accent-deep: #874f20;

  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --wrap: 1120px;
  --gutter: clamp(16px, 4vw, 40px);
  --space: clamp(64px, 9vw, 120px);
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1.0625rem/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; height: auto; }

a { color: inherit; text-decoration-color: color-mix(in srgb, currentColor 35%, transparent); text-underline-offset: 3px; }
a:hover { color: var(--accent-deep); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.15; margin: 0 0 0.6em; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.3rem, 5.4vw, 4rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.75rem, 3.4vw, 2.5rem); }
h3 { font-size: 1.3rem; }
p { margin: 0 0 1em; max-width: 62ch; }

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

.skip { position: absolute; left: -9999px; }
.skip:focus { left: var(--gutter); top: 12px; background: var(--ink); color: var(--paper); padding: 8px 14px; border-radius: 6px; z-index: 10; }

.eyebrow {
  font-size: 0.8125rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--accent-deep); margin-bottom: 1rem;
}

/* ── buttons ─────────────────────────────────────────────── */

.button {
  display: inline-block; background: var(--ink); color: var(--paper);
  padding: 0.85em 1.5em; border-radius: 999px; font-weight: 600; text-decoration: none;
  transition: background-color 0.15s ease;
}
.button:hover { background: var(--accent-deep); color: var(--paper); }
.button-small { padding: 0.55em 1.1em; font-size: 0.9375rem; }
.button-light { background: var(--paper); color: var(--ink); }
.button-light:hover { background: #fff; color: var(--accent-deep); }

.link-arrow { font-weight: 600; text-decoration: none; }
.link-arrow::after { content: " →"; transition: margin-left 0.15s ease; }
.link-arrow:hover::after { margin-left: 4px; }

/* ── header ──────────────────────────────────────────────── */

.site-header { border-bottom: 1px solid var(--rule); background: var(--paper); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 14px; padding-bottom: 14px; }
.brand img { width: 118px; height: auto; }
.site-header nav ul { display: flex; align-items: center; gap: clamp(14px, 2.6vw, 32px); list-style: none; margin: 0; padding: 0; }
.site-header nav a:not(.button) { text-decoration: none; font-weight: 500; color: var(--ink-soft); }
.site-header nav a:not(.button):hover { color: var(--ink); }

@media (max-width: 720px) {
  .site-header nav li:not(:last-child) { display: none; }
  .brand img { width: 96px; }
}

/* ── hero ────────────────────────────────────────────────── */

.hero { padding: clamp(48px, 8vw, 104px) 0 var(--space); }
.hero-inner { display: grid; grid-template-columns: 1.35fr 1fr; gap: clamp(32px, 6vw, 80px); align-items: center; }
.lede { font-size: clamp(1.125rem, 1.6vw, 1.3rem); color: var(--ink-soft); }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 28px; margin-top: 2rem; }
.hero-art img { width: min(100%, 420px); margin-left: auto; }

@media (max-width: 860px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-art { order: -1; }
  .hero-art img { width: 200px; margin: 0; }
}

/* ── sections ────────────────────────────────────────────── */

main section { padding: var(--space) 0; }
main section + section:not(.band):not(.cta) { border-top: 1px solid var(--rule); }
.band { background: var(--paper-deep); border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.band + section { border-top: 0 !important; }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(24px, 4vw, 48px); margin-top: 2.25rem; }
.grid-3 article { border-top: 2px solid var(--ink); padding-top: 1.25rem; }
.grid-3 p { color: var(--ink-soft); margin: 0; }
@media (max-width: 820px) { .grid-3 { grid-template-columns: 1fr; } }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 6vw, 88px); align-items: start; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; } }

.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 28px; }
.steps li { display: grid; grid-template-columns: auto 1fr; gap: 18px; }
.step-n {
  width: 2.25rem; height: 2.25rem; border-radius: 50%; border: 1.5px solid var(--ink);
  display: grid; place-items: center; font-family: var(--serif); font-weight: 600;
}
.steps h3 { margin-bottom: 0.25em; }
.steps p { color: var(--ink-soft); margin: 0; }

.checks { list-style: none; margin: 0; padding: 0; display: grid; gap: 18px; }
.checks li { position: relative; padding-left: 2rem; color: var(--ink-soft); }
.checks li::before {
  content: ""; position: absolute; left: 0; top: 0.5em; width: 0.9rem; height: 0.5rem;
  border-left: 2px solid var(--accent); border-bottom: 2px solid var(--accent); transform: rotate(-45deg);
}

/* ── call to action ──────────────────────────────────────── */

.cta { background: var(--ink); color: var(--paper); }
.cta-inner { text-align: center; }
.cta-inner p { margin-left: auto; margin-right: auto; color: color-mix(in srgb, var(--paper) 82%, transparent); }
.cta-inner .button { margin-top: 1rem; }
.cta-note { font-size: 0.9375rem; margin-top: 1.25rem; }
.cta a:not(.button):hover { color: #fff; }

/* ── footer ──────────────────────────────────────────────── */

.site-footer { border-top: 1px solid var(--rule); }
.footer-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; padding-top: 28px; padding-bottom: 28px; font-size: 0.9375rem; color: var(--ink-soft); }
.footer-inner p { margin: 0; }

.footer-links { display: flex; flex-wrap: wrap; gap: 8px 20px; }

/* ── legal pages ─────────────────────────────────────────── */

.legal { padding: clamp(48px, 7vw, 88px) 0 var(--space); }
.legal .wrap { max-width: 760px; }
.legal h1 { font-size: clamp(2rem, 4.4vw, 3rem); }
.legal h2 { font-size: 1.35rem; margin-top: 2.2em; }
.legal p, .legal li { color: var(--ink-soft); max-width: none; }
.legal ul { padding-left: 1.25rem; margin: 0 0 1em; }
.legal li { margin-bottom: 0.4em; }
.legal strong { color: var(--ink); font-weight: 600; }
.legal .updated { font-size: 0.9375rem; margin-bottom: 2rem; }