* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  background: #f4f1ea;
  color: #111;
}

.site-header {
  height: 78px;
  padding: 0 7%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid #ddd6c8;
  position: sticky;
  top: 0;
  z-index: 10;
}

.logo-box {
  width: 150px;
  height: 42px;
  border: 2px dashed #999;
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-weight: 800;
  color: #555;
}

nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

nav a {
  text-decoration: none;
  color: #222;
  font-weight: 600;
}

.nav-button {
  background: #111;
  color: white !important;
  padding: 10px 16px;
  border-radius: 999px;
}

.hero {
  min-height: 720px;
  padding: 90px 7%;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 60px;
  align-items: center;
  background:
    radial-gradient(circle at top right, rgba(245,139,38,0.28), transparent 30%),
    linear-gradient(135deg, #111c18, #243d32);
  color: white;
}

.eyebrow {
  color: #f28c28;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 13px;
  font-weight: 800;
}

h1 {
  font-size: clamp(42px, 6vw, 72px);
  line-height: 0.95;
  margin: 14px 0 24px;
  max-width: 900px;
}

h2 {
  font-size: clamp(34px, 4vw, 54px);
  line-height: 1;
  margin: 10px 0 24px;
}

h3 {
  font-size: 24px;
  margin-bottom: 10px;
}

.hero p,
.section p,
.cta p {
  font-size: 18px;
  line-height: 1.6;
  color: #d8ddd8;
  max-width: 680px;
}

.section p {
  color: #4a4a4a;
}

.hero-buttons {
  margin-top: 34px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.button {
  display: inline-block;
  padding: 15px 22px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 800;
}

.primary {
  background: #f28c28;
  color: #111;
}

.secondary {
  border: 1px solid rgba(255,255,255,0.5);
  color: white;
}

.image-placeholder {
  min-height: 260px;
  border: 2px dashed #aaa;
  border-radius: 24px;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 20px;
  color: #777;
  background:
    linear-gradient(135deg, rgba(255,255,255,0.75), rgba(255,255,255,0.25));
  font-weight: 800;
}

.image-placeholder.large {
  min-height: 460px;
  color: #cfd7d1;
  border-color: rgba(255,255,255,0.32);
  background: rgba(255,255,255,0.08);
  box-shadow: 0 30px 80px rgba(0,0,0,0.35);
}

.image-placeholder.tall {
  min-height: 420px;
}

.section {
  padding: 90px 7%;
}

.app-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-top: 36px;
}

.app-card {
  background: white;
  border: 1px solid #e1dbce;
  border-radius: 28px;
  padding: 24px;
  box-shadow: 0 18px 50px rgba(0,0,0,0.08);
}

.app-card ul {
  padding-left: 20px;
  color: #333;
  line-height: 1.8;
}

.dark {
  background: #111c18;
  color: white;
}

.dark p {
  color: #d8ddd8;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-top: 36px;
}

.feature-grid div {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  padding: 26px;
  border-radius: 22px;
}

.split {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 50px;
  align-items: center;
}

.cta {
  margin: 70px 7%;
  padding: 70px;
  border-radius: 34px;
  background: #f28c28;
  color: #111;
  text-align: center;
}

.cta p {
  margin: 0 auto 28px;
  color: #2a1a0b;
}

.cta .primary {
  background: #111;
  color: white;
}

footer {
  padding: 34px 7%;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  background: #0c0c0c;
  color: #bbb;
}

@media (max-width: 850px) {
  nav {
    display: none;
  }

  .hero,
  .split,
  .app-grid,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 60px;
  }

  .cta {
    margin: 40px 5%;
    padding: 42px 24px;
  }

  footer {
    flex-direction: column;
  }
}