* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

body {
  color: #0f172a;
  background: #ffffff;
  line-height: 1.6;
}

/* LAYOUT */
.container {
  max-width: 1100px;
  margin: auto;
  padding: 1.75rem;
}

/* HEADER */
.header {
  border-bottom: 1px solid #e5e7eb;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* LOGO */
.logo {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 800;
  font-size: 1.15rem;
}

.logo img {
  height: 22px;
}

/* HERO */
.hero {
  padding: 3.5rem 0 4rem;
}

.hero h1 {
  font-size: 2.6rem;
  line-height: 1.2;
  margin-bottom: 0.8rem;
}

.hero h1 span {
  color: #22c55e;
}

.subline {
  font-size: 1rem;
  color: #475569;
  margin-bottom: 1.8rem;
}

.cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* BUTTONS */
.btn {
  background: #22c55e;
  color: #ffffff;
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  border: none;
}

.btn.outline {
  background: transparent;
  color: #22c55e;
  border: 2px solid #22c55e;
}

.btn.small {
  padding: 0.5rem 0.85rem;
  font-size: 0.85rem;
  border-radius: 6px;
}

/* SCROLL HINT */
.scroll-hint {
  margin-top: 2rem;
  font-size: 0.85rem;
  color: #64748b;
}

/* FEATURES */
.features {
  background: #f8fafc;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.card {
  background: #ffffff;
  padding: 1.5rem;
  border-radius: 10px;
  border: 1px solid #e5e7eb;
}

/* COMING SOON */
.coming h2 {
  margin-bottom: 0.75rem;
}

.coming ul {
  list-style: none;
}

.coming li {
  margin: 0.45rem 0;
}

/* SIGNUP */
.signup {
  background: #0f172a;
  color: #ffffff;
  text-align: center;
}

.signup form {
  margin-top: 1rem;
  display: flex;
  gap: 0.6rem;
  justify-content: center;
  flex-wrap: wrap;
}

.signup input {
  padding: 0.7rem;
  border-radius: 8px;
  border: none;
  min-width: 250px;
}

/* FOOTER */
.footer {
  text-align: center;
  font-size: 0.9rem;
  color: #64748b;
  border-top: 1px solid #e5e7eb;
}

/* MOBILE TUNING */
@media (max-width: 600px) {
  .hero h1 {
    font-size: 2.1rem;
    line-height: 1.15;
  }

  .logo {
    font-size: 1.05rem;
  }

  .btn.small {
    padding: 0.4rem 0.7rem;
    font-size: 0.8rem;
  }
}