:root {
  --green: #4a6741;
  --green-dark: #3a5234;
  --green-light: #5b7a52;
  --green-muted: #e6ebe4;
  --green-pale: #f0f3ee;
  --surface: #ffffff;
  --text: #1a1f1a;
  --text-secondary: #5c6658;
  --text-muted: #8a9488;
  --border: #d8dfd4;
  --radius: 16px;
  --shadow: 0 8px 32px rgba(58, 82, 52, 0.08);
  --max: 720px;
  --max-wide: 1100px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--green-pale);
}

a {
  color: var(--green);
  text-decoration: none;
}

a:hover {
  color: var(--green-dark);
  text-decoration: underline;
}

.site-header {
  padding: 1.25rem 1.5rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.site-header a.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text);
}

.site-header a.brand:hover {
  text-decoration: none;
}

.site-header img {
  height: 36px;
  width: auto;
}

.site-header span {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--green-dark);
}

main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2.5rem 1.5rem 3rem;
}

main.home {
  max-width: var(--max-wide);
}

.hero {
  text-align: center;
  padding: 2rem 0 2.5rem;
}

.hero img {
  width: min(280px, 80vw);
  height: auto;
  margin-bottom: 1.25rem;
}

.hero h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.75rem, 5vw, 2.25rem);
  font-weight: 800;
  color: var(--green-dark);
  letter-spacing: -0.02em;
}

.hero .tagline {
  margin: 0;
  font-size: 1.125rem;
  color: var(--text-secondary);
}

.hero .sub {
  margin: 0.35rem 0 0;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.hero-cta {
  margin-top: 1.75rem;
}

.app-store-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.75rem 1.35rem;
  background: var(--text);
  color: #fff;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: background 0.15s, transform 0.15s;
}

.app-store-badge:hover {
  background: #000;
  color: #fff;
  text-decoration: none;
  transform: translateY(-1px);
}

.hero-cta-note {
  margin: 0.65rem 0 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.app-preview {
  margin: 0 0 2.5rem;
  padding: 0 0 0.5rem;
}

.section-title {
  margin: 0 0 0.35rem;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--green-dark);
  text-align: center;
  letter-spacing: -0.02em;
}

.section-lead {
  margin: 0 0 1.5rem;
  text-align: center;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.screenshot-track {
  display: flex;
  gap: 1rem;
  overflow-x: auto;
  padding: 0.25rem 0 1rem;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--green-light) transparent;
}

.screenshot-track::-webkit-scrollbar {
  height: 6px;
}

.screenshot-track::-webkit-scrollbar-thumb {
  background: var(--green-light);
  border-radius: 999px;
}

.screenshot-card {
  flex: 0 0 auto;
  margin: 0;
  width: min(220px, 72vw);
  scroll-snap-align: start;
  text-align: center;
}

.screenshot-card img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 20px;
  box-shadow: 0 12px 40px rgba(58, 82, 52, 0.18);
  border: 1px solid var(--border);
}

.screenshot-card figcaption {
  margin-top: 0.65rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

@media (min-width: 900px) {
  .screenshot-card {
    width: 200px;
  }

  .screenshot-track {
    justify-content: center;
    overflow-x: visible;
    flex-wrap: wrap;
    scroll-snap-type: none;
  }
}

.card-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
}

@media (min-width: 540px) {
  .card-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.card {
  display: block;
  padding: 1.25rem 1.35rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s, transform 0.15s;
}

.card:hover {
  border-color: var(--green-light);
  transform: translateY(-2px);
  text-decoration: none;
  color: inherit;
}

.card h2 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
  color: var(--green-dark);
}

.card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.contact-box {
  margin-top: 2rem;
  padding: 1.25rem 1.35rem;
  background: var(--green-muted);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  text-align: center;
}

.contact-box p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.contact-box a {
  font-weight: 600;
}

.page-title {
  margin: 0 0 0.35rem;
  font-size: 1.75rem;
  color: var(--green-dark);
}

.page-meta {
  margin: 0 0 2rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.prose h2 {
  margin: 2rem 0 0.75rem;
  font-size: 1.15rem;
  color: var(--green-dark);
}

.prose h2:first-child {
  margin-top: 0;
}

.prose p,
.prose li {
  color: var(--text-secondary);
}

.prose ul {
  padding-left: 1.25rem;
}

.prose li {
  margin-bottom: 0.35rem;
}

.back-link {
  display: inline-block;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
  font-weight: 500;
}

.site-footer {
  max-width: var(--max-wide);
  margin: 0 auto;
  padding: 0 1.5rem 2.5rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem 1.25rem;
  margin-bottom: 0.75rem;
}

.site-footer nav a {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.site-footer nav a:hover {
  color: var(--green);
}