:root {
  --bg: #f4f8f4;
  --surface: #ffffff;
  --text: #10311f;
  --muted: #4b6656;
  --line: #d5e3d8;
  --green-1: #0f6a3b;
  --green-2: #2d8c57;
  --green-3: #dff5e6;
  --shadow: 0 16px 40px rgba(13, 64, 36, 0.08);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Manrope", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 10% 10%, #e7f5eb 0%, transparent 36%),
    radial-gradient(circle at 90% 20%, #edf7f0 0%, transparent 30%),
    linear-gradient(180deg, #f9fcfa 0%, #f2f8f3 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

.ambient {
  position: fixed;
  border-radius: 100%;
  pointer-events: none;
  z-index: -1;
}

.ambient-a {
  width: 28rem;
  height: 28rem;
  top: -10rem;
  right: -6rem;
  background: radial-gradient(circle, rgba(43, 137, 84, 0.18), transparent 70%);
}

.ambient-b {
  width: 24rem;
  height: 24rem;
  bottom: -8rem;
  left: -6rem;
  background: radial-gradient(circle, rgba(15, 106, 59, 0.14), transparent 70%);
}

.site-header {
  position: sticky;
  top: 0;
  backdrop-filter: blur(10px);
  background: rgba(249, 252, 250, 0.85);
  border-bottom: 1px solid rgba(156, 183, 166, 0.28);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
  padding: 0.9rem clamp(1rem, 2.4vw, 2.6rem);
  z-index: 5;
}

.brand {
  font-family: "Plus Jakarta Sans", sans-serif;
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  text-decoration: none;
  color: var(--text);
}

nav {
  display: flex;
  gap: clamp(0.75rem, 2vw, 1.8rem);
}

nav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 600;
  position: relative;
  padding-bottom: 0.2rem;
}

nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.12rem;
  width: 100%;
  height: 1px;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.28s ease;
  background: var(--green-1);
}

nav a:hover::after,
nav a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.cta-small {
  text-decoration: none;
  color: var(--surface);
  background: linear-gradient(135deg, var(--green-1), var(--green-2));
  font-weight: 700;
  padding: 0.58rem 0.9rem;
  border-radius: 999px;
  font-size: 0.88rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.cta-small.cta-ghost {
  color: var(--green-1);
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid #b7d0bf;
}

main,
.site-footer {
  width: min(1100px, 92vw);
  margin-inline: auto;
}

.hero {
  padding: clamp(3.2rem, 7vw, 6rem) 0 2.6rem;
}

.kicker {
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.78rem;
  color: var(--green-2);
  font-weight: 800;
  margin: 0 0 0.8rem;
}

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.12;
}

h1 {
  font-family: "Plus Jakarta Sans", sans-serif;
  font-weight: 800;
  font-size: clamp(2.1rem, 6vw, 4rem);
  max-width: 14ch;
  margin-bottom: 1rem;
}

.lead {
  color: var(--muted);
  max-width: 62ch;
  font-size: clamp(1rem, 1.9vw, 1.2rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.7rem;
}

.btn {
  display: inline-block;
  text-decoration: none;
  border-radius: 999px;
  padding: 0.85rem 1.25rem;
  font-weight: 700;
  transition: transform 0.24s ease, box-shadow 0.24s ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(130deg, var(--green-1), var(--green-2));
  color: var(--surface);
  box-shadow: 0 10px 24px rgba(15, 106, 59, 0.28);
}

.btn-ghost {
  color: var(--green-1);
  border: 1px solid #b7d0bf;
  background: rgba(255, 255, 255, 0.8);
}

.platform-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 1.2rem;
}

.glass-card,
.app-card,
.principles,
.site-footer {
  border: 1px solid rgba(165, 191, 173, 0.35);
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow);
  border-radius: 1.05rem;
}

.glass-card {
  padding: 1.1rem 1.05rem;
}

.glass-card p {
  color: var(--muted);
}

.apps {
  margin-top: 2.6rem;
}

.section-head h2 {
  font-size: clamp(1.55rem, 3.2vw, 2.2rem);
  margin-bottom: 0.6rem;
}

.app-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.app-card {
  padding: 1rem;
  position: relative;
  overflow: hidden;
}

.app-card::before {
  content: "";
  position: absolute;
  width: 8.5rem;
  height: 8.5rem;
  border-radius: 100%;
  top: -4.2rem;
  right: -2.4rem;
  background: radial-gradient(circle, rgba(223, 245, 230, 0.75), transparent 70%);
}

.app-card p {
  color: var(--muted);
}

.tag {
  display: inline-block;
  margin-top: 0.6rem;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--green-1);
  background: var(--green-3);
  border: 1px solid #cde9d5;
  border-radius: 999px;
  padding: 0.28rem 0.62rem;
  font-weight: 800;
}

.tag.dependency {
  background: #f0fff4;
  border-color: #9fdab1;
}

.principles {
  margin-top: 2.6rem;
  padding: 1.2rem 1.1rem;
}

.principles ol {
  margin: 0;
  padding-left: 1.2rem;
  display: grid;
  gap: 0.72rem;
}

.principles li {
  color: var(--muted);
}

.site-footer {
  margin: 2.6rem auto 2rem;
  padding: 1.6rem 1.1rem;
  text-align: center;
}

.site-footer p {
  color: var(--muted);
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 900px) {
  nav {
    display: none;
  }

  .header-actions {
    width: 100%;
    justify-content: flex-end;
  }

  .platform-grid,
  .app-cards {
    grid-template-columns: 1fr;
  }

  .site-header {
    padding: 0.8rem 1rem;
  }

  .hero {
    padding-top: 2.5rem;
  }
}