:root {
  --bg: #f5fbf6;
  --text: #153118;
  --muted: #4e6351;
  --primary: #1f9d55;
  --primary-dark: #188147;
  --card: #ffffff;
  --border: #dceadf;
  --shadow: 0 12px 28px rgba(20, 62, 28, 0.1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

img {
  display: block;
  max-width: 100%;
}

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

.container {
  width: min(1120px, 92%);
  margin: 0 auto;
}

.section {
  padding: 80px 0;
}

.section-alt {
  background: #edf7ef;
}

.section-title {
  text-align: center;
  margin-bottom: 36px;
}

.section-title p {
  color: var(--muted);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(245, 251, 246, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
}

.brand i {
  color: var(--primary);
}

.site-nav {
  display: flex;
  gap: 22px;
}

.site-nav a {
  font-weight: 500;
  color: var(--muted);
  transition: color 0.2s ease;
}

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

.menu-toggle {
  display: none;
  border: 0;
  background: transparent;
  font-size: 1.2rem;
  color: var(--text);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 36px;
}

.pill {
  display: inline-block;
  background: #d6f3e0;
  color: var(--primary-dark);
  border-radius: 999px;
  padding: 6px 14px;
  font-weight: 600;
  margin-bottom: 14px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.15;
}

.tagline {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 10px 0 8px;
}

.hero-text {
  color: var(--muted);
  margin-bottom: 20px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 12px;
  padding: 11px 22px;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), #45c36f);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 8px 18px rgba(31, 157, 85, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(31, 157, 85, 0.3);
}

.hero-image img {
  border-radius: 20px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.features-grid,
.steps-grid,
.benefits-grid {
  display: grid;
  gap: 18px;
}

.features-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px;
  box-shadow: 0 4px 12px rgba(20, 62, 28, 0.05);
}

.feature-card i {
  color: var(--primary);
  font-size: 1.4rem;
  margin-bottom: 12px;
}

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

.steps-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.step {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  text-align: center;
  padding: 18px;
}

.step span {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  margin-bottom: 8px;
}

.screenshots-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.screenshots-grid img {
  border-radius: 18px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  aspect-ratio: 9 / 16;
  object-fit: cover;
}

.benefits-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.benefit {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
}

.benefit i {
  color: var(--primary);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.contact-info p {
  color: var(--muted);
  margin-top: 10px;
}

.contact-form {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  display: grid;
  gap: 8px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid #cfe2d4;
  font: inherit;
  margin-bottom: 8px;
}

.site-footer {
  background: #153118;
  color: #d9f0df;
  padding: 26px 0;
}

.footer-content {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px 18px;
}

.footer-links {
  display: flex;
  gap: 16px;
}

.footer-links a:hover {
  color: #9de0b4;
}

.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .hero-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .features-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .steps-grid,
  .screenshots-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .menu-toggle {
    display: block;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: #f5fbf6;
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 14px 4%;
  }

  .site-nav.open {
    display: flex;
  }

  .features-grid,
  .steps-grid,
  .screenshots-grid,
  .benefits-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 62px 0;
  }
}