/* SpanishTax AI — Legal pages stylesheet */

:root {
  --stx-bg: #FAF8F4;
  --stx-bg-alt: #F4F0E8;
  --stx-ink: #0F2547;
  --stx-ink-soft: #1E3358;
  --stx-muted: #5D5D5D;
  --stx-accent: #C8553D;
  --stx-accent-dark: #A8412F;
  --stx-line: #E8E4DC;
  --stx-serif: 'Fraunces', Georgia, serif;
  --stx-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--stx-bg);
  color: var(--stx-ink);
  font-family: var(--stx-sans);
  font-size: 16px;
  line-height: 1.65;
  min-height: 100vh;
  position: relative;
}

/* Paper grain texture — matches landing */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.06   0 0 0 0 0.15   0 0 0 0 0.28   0 0 0 0.045 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  opacity: 0.4;
  mix-blend-mode: multiply;
}

main, header, footer {
  position: relative;
  z-index: 1;
}

/* ─── Header ─────────────────────────────────────────────────────── */
header {
  padding: 28px 32px;
  border-bottom: 1px solid var(--stx-line);
}

.header-inner {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  font-family: var(--stx-serif);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--stx-ink);
  text-decoration: none;
}

.brand::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--stx-accent);
  border-radius: 50%;
  margin-right: 10px;
  vertical-align: middle;
}

.back-link {
  font-size: 14px;
  color: var(--stx-muted);
  text-decoration: none;
  transition: color 180ms;
}

.back-link:hover {
  color: var(--stx-accent);
}

/* ─── Main content ────────────────────────────────────────────────── */
main {
  max-width: 760px;
  margin: 0 auto;
  padding: 56px 32px 80px;
}

h1 {
  font-family: var(--stx-serif);
  font-size: clamp(32px, 5vw, 44px);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--stx-ink);
  margin-bottom: 12px;
}

.last-updated {
  font-size: 13px;
  color: var(--stx-muted);
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--stx-line);
}

h2 {
  font-family: var(--stx-serif);
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--stx-ink);
  margin-top: 44px;
  margin-bottom: 16px;
}

h3 {
  font-family: var(--stx-sans);
  font-size: 17px;
  font-weight: 600;
  color: var(--stx-ink);
  margin-top: 28px;
  margin-bottom: 10px;
}

p {
  margin-bottom: 18px;
  color: var(--stx-ink-soft);
}

ul, ol {
  margin-bottom: 18px;
  padding-left: 24px;
  color: var(--stx-ink-soft);
}

li {
  margin-bottom: 8px;
}

a {
  color: var(--stx-accent);
  text-decoration: underline;
  text-decoration-color: rgba(200, 85, 61, 0.3);
  text-underline-offset: 3px;
  transition: text-decoration-color 180ms;
}

a:hover {
  text-decoration-color: var(--stx-accent);
}

strong {
  font-weight: 600;
  color: var(--stx-ink);
}

em {
  font-style: italic;
}

code {
  font-family: 'SF Mono', Consolas, monospace;
  font-size: 14px;
  background: var(--stx-bg-alt);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--stx-ink);
}

/* Callout boxes */
.callout {
  background: var(--stx-bg-alt);
  border-left: 3px solid var(--stx-accent);
  padding: 16px 20px;
  border-radius: 6px;
  margin: 20px 0;
}

.callout p {
  margin-bottom: 0;
}

.callout-icon {
  display: inline-block;
  margin-right: 8px;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 14px;
}

th, td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--stx-line);
}

th {
  font-weight: 600;
  background: var(--stx-bg-alt);
  color: var(--stx-ink);
}

/* ─── Footer ─────────────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--stx-line);
  padding: 32px;
  font-size: 13px;
  color: var(--stx-muted);
}

.footer-inner {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-links a {
  color: var(--stx-muted);
  text-decoration: none;
  margin-right: 18px;
}

.footer-links a:hover {
  color: var(--stx-accent);
}

/* Mobile */
@media (max-width: 600px) {
  main {
    padding: 32px 20px 60px;
  }
  header {
    padding: 20px;
  }
  footer {
    padding: 24px 20px;
  }
}