/* ArgGate website — one stylesheet, no external fonts or scripts.
   Palette: mud-brick clay (Arg-e Bam) + Persian turquoise, on warm sand.
   All text colours meet WCAG 2.2 AA contrast on their backgrounds. */
:root {
  --ink: #1c2430;          /* body text, 14.9:1 on sand */
  --ink-soft: #3d4756;     /* secondary text, 8.9:1 on sand */
  --sand: #f7f2e8;         /* page background */
  --sand-deep: #ede4d3;    /* alternate section background */
  --white: #ffffff;
  --clay: #8a3f24;         /* brand clay, 7.2:1 on white */
  --turquoise: #0b6f78;    /* accent, 5.9:1 on white */
  --turquoise-dark: #08535a;
  --line: #d9cdb7;
  --focus: #1a5fd0;
  --radius: 12px;
  --max: 72rem;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--sand);
}
img, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--turquoise-dark); text-underline-offset: 0.18em; }
a:hover { color: var(--clay); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; border-radius: 4px; }

.skip-link {
  position: absolute; inset-inline-start: 1rem; top: -4rem;
  background: var(--ink); color: var(--white); padding: 0.75rem 1rem; border-radius: 8px; z-index: 10;
}
.skip-link:focus { top: 1rem; color: var(--white); }

.wrap { max-width: var(--max); margin-inline: auto; padding-inline: 1.25rem; }

/* Header */
.site-header { background: var(--white); border-block-end: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 4.5rem; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 0.6rem; text-decoration: none; color: var(--ink); font-weight: 800; font-size: 1.35rem; letter-spacing: -0.01em; }
.brand img { width: 2.25rem; height: 2.25rem; }
.brand span b { color: var(--clay); }
.nav ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.25rem; }
.nav a { display: inline-flex; align-items: center; min-height: 48px; padding-inline: 0.75rem; text-decoration: none; color: var(--ink); font-weight: 600; border-radius: 8px; }
.nav a:hover { background: var(--sand); color: var(--ink); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 52px; padding: 0.75rem 1.4rem; border-radius: 10px;
  font-weight: 700; font-size: 1.05rem; text-decoration: none; border: 2px solid transparent;
}
.btn-primary { background: var(--turquoise); color: var(--white); }
.btn-primary:hover { background: var(--turquoise-dark); color: var(--white); }
.btn-secondary { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-secondary:hover { background: var(--ink); color: var(--white); }

/* Hero */
.hero { background: linear-gradient(180deg, var(--white) 0%, var(--sand) 100%); padding-block: 4.5rem 3.5rem; }
.hero .wrap { display: grid; gap: 2.5rem; grid-template-columns: 1.2fr 0.8fr; align-items: center; }
.eyebrow { display: inline-block; font-weight: 700; color: var(--clay); text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.85rem; margin: 0 0 0.75rem; }
h1 { font-size: clamp(2.1rem, 4.6vw, 3.4rem); line-height: 1.12; margin: 0 0 1.1rem; letter-spacing: -0.02em; }
.lead { font-size: 1.2rem; color: var(--ink-soft); margin: 0 0 1.75rem; max-width: 38rem; }
.cta-row { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-block-end: 1.5rem; }
.trust { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 0.5rem 1.25rem; color: var(--ink-soft); font-weight: 600; }
.trust li::before { content: "✓ "; color: var(--turquoise); font-weight: 800; }
.hero-art { background: var(--white); border: 1px solid var(--line); border-radius: 20px; padding: 2rem; box-shadow: 0 10px 30px rgba(28, 36, 48, 0.08); }
.hero-art img { width: 100%; max-width: 16rem; margin-inline: auto; }
.hero-art p { text-align: center; margin: 1rem 0 0; color: var(--ink-soft); font-size: 0.95rem; }

/* Sections */
section { padding-block: 4rem; }
section.alt { background: var(--sand-deep); }
h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); line-height: 1.2; margin: 0 0 0.75rem; letter-spacing: -0.01em; }
.section-intro { color: var(--ink-soft); max-width: 44rem; margin: 0 0 2.25rem; font-size: 1.1rem; }
h3 { font-size: 1.2rem; margin: 0 0 0.4rem; }

.grid { display: grid; gap: 1.25rem; grid-template-columns: repeat(3, 1fr); }
.card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem; }
.card p { margin: 0; color: var(--ink-soft); }
.card .icon { width: 2.75rem; height: 2.75rem; border-radius: 10px; background: #e3f1f2; color: var(--turquoise-dark); display: grid; place-items: center; font-weight: 800; font-size: 1.2rem; margin-block-end: 0.9rem; }

.split { display: grid; gap: 2.5rem; grid-template-columns: 1fr 1fr; align-items: start; }
.checklist { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.9rem; }
.checklist li { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem 1.25rem; }
.checklist strong { display: block; }
.checklist span { color: var(--ink-soft); }

.tags { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 0.75rem; }
.tags li { background: var(--white); border: 2px solid var(--line); border-radius: 999px; padding: 0.55rem 1.1rem; font-weight: 700; }
.tags li.soon { border-style: dashed; color: var(--ink-soft); font-weight: 600; }

.story { display: grid; grid-template-columns: auto 1fr; gap: 2rem; align-items: center; }
.story img { width: 7rem; }
.story p { max-width: 44rem; }

.pricing { text-align: center; }
.pricing .card { max-width: 34rem; margin-inline: auto; padding: 2rem; }
.pricing .big { font-size: 2rem; font-weight: 800; color: var(--clay); margin: 0 0 0.25rem; }

details { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 0 1.25rem; margin-block-end: 0.75rem; }
summary { cursor: pointer; font-weight: 700; min-height: 56px; display: flex; align-items: center; }
details p { margin-block: 0 1rem; color: var(--ink-soft); }

.contact { text-align: center; }
.contact .cta-row { justify-content: center; }
.centered { margin-inline: auto; }

/* Footer */
.site-footer { background: var(--ink); color: #e9edf2; padding-block: 2.5rem; font-size: 0.95rem; }
.site-footer a { color: #ffffff; }
.site-footer .disclaimer { border-block-start: 1px solid #3d4756; margin-block-start: 1.5rem; padding-block-start: 1.5rem; color: #c9d1db; }
.footer-row { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; }
.footer-row ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.25rem 1.25rem; }
.footer-row a { display: inline-flex; min-height: 44px; align-items: center; }

/* Legal pages */
.legal { padding-block: 3rem 4rem; }
.legal .wrap { max-width: 48rem; }
.legal h2 { font-size: 1.4rem; margin-block-start: 2rem; }
.note { background: #fff7e0; border: 1px solid #e3c766; border-radius: var(--radius); padding: 1rem 1.25rem; }

/* Responsive */
@media (max-width: 900px) {
  .hero .wrap, .split { grid-template-columns: 1fr; }
  .grid { grid-template-columns: 1fr 1fr; }
  .hero-art { padding: 1.25rem; }
  .hero-art img { max-width: 8rem; }
}
@media (max-width: 600px) {
  .grid { grid-template-columns: 1fr; }
  .story { grid-template-columns: 1fr; }
  .story img { width: 5rem; }
  .nav { width: 100%; }
  .nav ul { justify-content: center; gap: 0; }
  .nav a { padding-inline: 0.55rem; font-size: 0.98rem; }
  .site-header .wrap { justify-content: center; padding-block: 0.5rem; }
  section { padding-block: 3rem; }
}
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}