:root {
  --gb-clay:  #C46140;
  --gb-plum:  #3A1F38;
  --gb-char:  #1C1814;
  --gb-smoke: #8A7F75;
  --gb-bone:  #F2E9D8;
  --gb-ivory: #FAF5E9;

  --maxw: 1080px;
  --radius: 18px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: "Plus Jakarta Sans", system-ui, -apple-system, sans-serif;
  background: var(--gb-bone);
  color: var(--gb-char);
  line-height: 1.55;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: -0.02em;
  padding: 0.8rem 1.4rem;
  border-radius: 999px;
  border: 1.5px solid var(--gb-char);
  background: transparent;
  color: var(--gb-char);
  transition: transform 0.15s var(--ease), background 0.2s var(--ease), color 0.2s var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn--small { padding: 0.5rem 1rem; font-size: 0.85rem; }
.btn--primary {
  background: var(--gb-clay);
  border-color: var(--gb-clay);
  color: var(--gb-ivory);
}
.btn--primary:hover { background: #ad5234; border-color: #ad5234; }
.btn--lg { padding: 1rem 2rem; font-size: 1.05rem; }

/* ---------- nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem clamp(1.2rem, 5vw, 3rem);
  background: rgba(242, 233, 216, 0.82);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid rgba(28, 24, 20, 0.07);
}
.nav__brand { display: flex; align-items: center; }
.nav__links { display: flex; align-items: center; gap: clamp(0.8rem, 3vw, 2rem); }
.nav__links a { font-weight: 600; font-size: 0.95rem; }
.nav__links a:not(.btn):hover { color: var(--gb-clay); }

/* ---------- layout ---------- */
main { max-width: var(--maxw); margin: 0 auto; padding: 0 clamp(1.2rem, 5vw, 3rem); }

section { padding: clamp(3.5rem, 9vw, 7rem) 0; }

.section__title {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  margin-bottom: 2.5rem;
  text-align: center;
}

/* ---------- hero ---------- */
.hero { text-align: center; padding-top: clamp(3rem, 8vw, 5.5rem); }
.hero__mark {
  width: 96px;
  height: 96px;
  filter: drop-shadow(0 14px 30px rgba(58, 31, 56, 0.18));
}
.hero__title {
  margin-top: 1.8rem;
  font-size: clamp(2.4rem, 7vw, 4.4rem);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -0.045em;
}
.hero__title span { color: var(--gb-clay); }
.hero__sub {
  max-width: 36ch;
  margin: 1.4rem auto 0;
  font-size: clamp(1.05rem, 2.2vw, 1.25rem);
  color: #4a443c;
}
.hero__cta {
  margin-top: 2.4rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.9rem;
}
.hero__meta { font-size: 0.85rem; color: var(--gb-smoke); font-weight: 600; }

/* ---------- features ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.1rem;
}
.card {
  background: var(--gb-ivory);
  border: 1px solid rgba(28, 24, 20, 0.06);
  border-radius: var(--radius);
  padding: 1.8rem;
  transition: transform 0.18s var(--ease), box-shadow 0.18s var(--ease);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 40px -22px rgba(58, 31, 56, 0.4);
}
.card__dot { width: 30px; height: 30px; border-radius: 9px 9px 9px 2px; margin-bottom: 1.1rem; }
.card h3 { font-size: 1.15rem; font-weight: 700; letter-spacing: -0.02em; margin-bottom: 0.5rem; }
.card p { font-size: 0.96rem; color: #4a443c; }

/* ---------- requirements ---------- */
.requirements { text-align: center; }
.reqs {
  list-style: none;
  display: inline-flex;
  flex-direction: column;
  gap: 0.7rem;
  text-align: left;
  font-size: 1.05rem;
  color: #4a443c;
}
.reqs li { padding-left: 1.6rem; position: relative; }
.reqs li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.55em;
  width: 9px; height: 9px;
  border-radius: 3px 3px 3px 1px;
  background: var(--gb-clay);
}
.reqs strong { color: var(--gb-char); }

/* ---------- download ---------- */
.download {
  text-align: center;
  background: var(--gb-char);
  color: var(--gb-ivory);
  border-radius: 28px;
  margin: 0 0 clamp(3rem, 7vw, 5rem);
  padding: clamp(3rem, 7vw, 5rem) 1.5rem;
}
.download__title {
  font-size: clamp(1.8rem, 4.5vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.04em;
}
.download__sub { margin-top: 0.7rem; color: #c9bfb2; }
.download .btn--primary { margin-top: 2rem; }
.download__note {
  max-width: 44ch;
  margin: 1.6rem auto 0;
  font-size: 0.85rem;
  color: #9b9085;
  line-height: 1.6;
}
.download__note em { font-style: normal; color: #c9bfb2; }

/* ---------- footer ---------- */
.footer {
  background: var(--gb-char);
  color: #9b9085;
  text-align: center;
  padding: 2.5rem 1.5rem;
  border-top: 1px solid rgba(250, 245, 233, 0.08);
}
.footer img { opacity: 0.85; margin-bottom: 0.9rem; }
.footer p { font-size: 0.82rem; }
.footer__links {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  margin-bottom: 0.9rem;
}
.footer__links a {
  font-size: 0.85rem;
  font-weight: 600;
  color: #c9bfb2;
}
.footer__links a:hover { color: var(--gb-clay); }

/* ---------- legal pages ---------- */
.legal {
  max-width: 760px;
  margin: 0 auto;
  padding: clamp(2.5rem, 7vw, 5rem) clamp(1.2rem, 5vw, 3rem) 4rem;
}
.legal a.legal__back {
  display: inline-block;
  margin-bottom: 2rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--gb-smoke);
}
.legal a.legal__back:hover { color: var(--gb-clay); }
.legal h1 {
  font-size: clamp(1.8rem, 5vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  margin-bottom: 0.4rem;
}
.legal__updated { color: var(--gb-smoke); font-size: 0.9rem; margin-bottom: 2.5rem; }
.legal h2 {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 2.4rem 0 0.7rem;
}
.legal p, .legal li { color: #4a443c; font-size: 1rem; }
.legal p { margin-bottom: 0.9rem; }
.legal ul { margin: 0 0 0.9rem 1.2rem; }
.legal li { margin-bottom: 0.45rem; }
.legal a:not(.legal__back) { color: var(--gb-clay); font-weight: 600; }
.legal a:not(.legal__back):hover { text-decoration: underline; }
.legal .placeholder {
  background: #f4d9b8;
  color: #6b3a1f;
  padding: 0.05em 0.4em;
  border-radius: 5px;
  font-weight: 600;
  font-size: 0.92em;
}

@media (max-width: 560px) {
  .nav__links a:not(.btn) { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
}