:root {
  --loam: #7c5a3a;        /* warm soil */
  --loam-deep: #5b4029;
  --slate: #3a4750;       /* slate gray */
  --slate-deep: #29333a;
  --paper: #f6f3ee;
  --paper-deep: #efe9e0;
  --ink: #2b2b2b;
  --muted: #6f6a63;
  --terrain-green: #2c4031;   /* Terrain Keeper brand */
  --terrain-green-deep: #223327;
  --terrain-cream: #f5efe3;
  --terrain-orange: #dc8c5d;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  color: var(--ink);
  background: linear-gradient(135deg, var(--paper) 0%, var(--paper-deep) 100%);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

/* ---------- Header / tabs ---------- */
header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(246, 243, 238, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(58, 71, 80, 0.12);
}
.nav-inner {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0.8rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--slate-deep);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}
.brand .mark-sm {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px; height: 34px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--loam) 0%, var(--slate) 100%);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}
.brand .amp { color: var(--loam); }
nav.tabs {
  display: flex;
  gap: 0.25rem;
}
nav.tabs a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  transition: color .15s ease, background .15s ease;
}
nav.tabs a:hover { color: var(--slate-deep); background: rgba(58, 71, 80, 0.08); }
nav.tabs a.active {
  color: #fff;
  background: var(--slate-deep);
}

/* ---------- Layout ---------- */
main { flex: 1; }
.container {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 1.25rem;
}
section { padding: 3.5rem 0; }

h1, h2, h3 { font-family: var(--serif); color: var(--slate-deep); letter-spacing: -0.01em; line-height: 1.2; }
h1 { font-size: clamp(2.1rem, 5.5vw, 3.2rem); margin-bottom: 1rem; }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.1rem); margin-bottom: 0.75rem; }
h3 { font-size: 1.15rem; margin-bottom: 0.4rem; }

.lede {
  font-size: clamp(1.05rem, 2.5vw, 1.25rem);
  color: var(--muted);
  max-width: 40rem;
}
.kicker {
  display: block;
  font-family: var(--sans);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--loam);
  margin-bottom: 0.75rem;
}

/* ---------- Hero ---------- */
.hero { padding: 5rem 0 3.5rem; text-align: center; }
.hero .lede { margin: 0 auto 2rem; }
.hero .mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px; height: 64px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--loam) 0%, var(--slate) 100%);
  color: #fff;
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 1.75rem;
  box-shadow: 0 8px 24px rgba(58, 71, 80, 0.18);
}

/* ---------- Buttons ---------- */
.btn-row { display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.6rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform .15s ease, background .15s ease, color .15s ease;
}
.btn-primary { background: var(--slate-deep); color: #fff; }
.btn-primary:hover { background: var(--loam-deep); transform: translateY(-2px); }
.btn-secondary {
  background: transparent;
  color: var(--slate-deep);
  border: 1.5px solid rgba(41, 51, 58, 0.35);
}
.btn-secondary:hover { border-color: var(--slate-deep); transform: translateY(-2px); }
.btn-appstore { background: #111; color: #fff; }
.btn-appstore:hover { background: #000; transform: translateY(-2px); }
.btn-appstore svg { flex: none; }
.btn-cream { background: var(--terrain-cream); color: var(--terrain-green-deep); }
.btn-cream:hover { background: #fff; transform: translateY(-2px); }
.btn-outline-cream {
  background: transparent;
  color: var(--terrain-cream);
  border: 1.5px solid rgba(245, 239, 227, 0.5);
}
.btn-outline-cream:hover { border-color: var(--terrain-cream); transform: translateY(-2px); }

/* ---------- Cards ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
  margin-top: 2rem;
}
.card {
  background: #fff;
  border: 1px solid rgba(58, 71, 80, 0.1);
  border-radius: 16px;
  padding: 1.75rem 1.5rem;
  box-shadow: 0 2px 10px rgba(58, 71, 80, 0.05);
}
.card p { color: var(--muted); font-size: 0.95rem; }
.card .icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px; height: 42px;
  border-radius: 12px;
  margin-bottom: 0.9rem;
  background: linear-gradient(135deg, rgba(124, 90, 58, 0.14) 0%, rgba(58, 71, 80, 0.14) 100%);
  font-size: 1.25rem;
}

/* ---------- Dark Terrain band ---------- */
.band-terrain {
  background: linear-gradient(160deg, var(--terrain-green) 0%, var(--terrain-green-deep) 100%);
  color: var(--terrain-cream);
  padding: 4rem 0;
}
.band-terrain h1, .band-terrain h2, .band-terrain h3 { color: var(--terrain-cream); }
.band-terrain .lede, .band-terrain p { color: rgba(245, 239, 227, 0.8); }
.band-terrain .kicker { color: var(--terrain-orange); }
.band-terrain .card {
  background: rgba(245, 239, 227, 0.06);
  border: 1px solid rgba(245, 239, 227, 0.14);
  box-shadow: none;
}
.band-terrain .card p { color: rgba(245, 239, 227, 0.75); }
.band-terrain .card .icon {
  background: rgba(220, 140, 93, 0.18);
}

.terrain-wordmark { max-width: 420px; width: 80%; height: auto; display: block; margin: 0 auto 1.25rem; }

/* ---------- Feature split ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}
@media (max-width: 760px) { .split { grid-template-columns: 1fr; } }

/* ---------- Screenshots ---------- */
.screens {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
  max-width: 860px;
  margin-left: auto;
  margin-right: auto;
}
.screens figure { text-align: center; }
.screens img {
  width: 100%;
  max-width: 260px;
  height: auto;
  border-radius: 24px;
  border: 1px solid rgba(245, 239, 227, 0.18);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
}
.screens figcaption {
  margin-top: 0.75rem;
  font-size: 0.85rem;
  color: rgba(245, 239, 227, 0.7);
}

/* ---------- Statement blocks (mission / vision) ---------- */
.statement {
  background: #fff;
  border-left: 4px solid var(--loam);
  border-radius: 0 16px 16px 0;
  padding: 1.75rem 2rem;
  margin-top: 1.5rem;
  box-shadow: 0 2px 10px rgba(58, 71, 80, 0.05);
}
.statement h3 {
  font-family: var(--sans);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--loam);
}
.statement p {
  font-family: var(--serif);
  font-size: clamp(1.1rem, 2.5vw, 1.35rem);
  color: var(--slate-deep);
  line-height: 1.5;
}

.goal-list { list-style: none; margin-top: 1.5rem; display: grid; gap: 1rem; }
.goal-list li {
  background: #fff;
  border: 1px solid rgba(58, 71, 80, 0.1);
  border-radius: 14px;
  padding: 1.25rem 1.5rem;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  box-shadow: 0 2px 10px rgba(58, 71, 80, 0.05);
}
.goal-list .num {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--loam) 0%, var(--slate) 100%);
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
  margin-top: 0.15rem;
}
.goal-list strong { color: var(--slate-deep); }
.goal-list p { color: var(--muted); font-size: 0.95rem; }

/* ---------- Disclaimer ---------- */
.disclaimer {
  margin-top: 2.5rem;
  padding: 1.25rem 1.5rem;
  border: 1px solid rgba(245, 239, 227, 0.2);
  border-radius: 14px;
  font-size: 0.85rem;
  color: rgba(245, 239, 227, 0.7);
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

/* ---------- Contact strip ---------- */
.contact-strip { text-align: center; padding: 4rem 0; }

/* ---------- Footer ---------- */
footer {
  border-top: 1px solid rgba(58, 71, 80, 0.12);
  padding: 2rem 1.25rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}
footer .foot-links { margin-bottom: 0.75rem; display: flex; gap: 1.25rem; justify-content: center; flex-wrap: wrap; }
footer a { color: var(--slate); text-decoration: none; font-weight: 600; }
footer a:hover { color: var(--loam-deep); }

@media (max-width: 560px) {
  .nav-inner { justify-content: center; }
  .hero { padding: 3.5rem 0 2.5rem; }
  section { padding: 2.5rem 0; }
}