/* ── Reset & Base ─────────────────────────────────────────── */

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: #1a1a1a;
  background: #fafafa;
  line-height: 1.6;
}

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

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

/* ── Layout ──────────────────────────────────────────────── */

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Hero ─────────────────────────────────────────────────── */

.hero {
  padding: 100px 0 80px;
  text-align: center;
  background: linear-gradient(180deg, #fff 0%, #fafafa 100%);
}

.hero h1 {
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.hero .tagline {
  font-size: 1.35rem;
  color: #333;
  margin-bottom: 16px;
  font-weight: 500;
}

.hero .subtitle {
  font-size: 1.05rem;
  color: #666;
  max-width: 560px;
  margin: 0 auto 32px;
}

.hero .cta {
  margin-bottom: 16px;
}

.hero .platforms {
  font-size: 0.85rem;
  color: #999;
}

/* ── Buttons ──────────────────────────────────────────────── */

.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 8px;
  font-size: 1.05rem;
  font-weight: 600;
  transition: background 0.15s, transform 0.1s;
  cursor: pointer;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: #1a1a1a;
  color: #fff;
}

.btn-primary:hover {
  background: #333;
}

/* ── Features ─────────────────────────────────────────────── */

.features {
  padding: 80px 0;
}

.features h2 {
  text-align: center;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 48px;
  letter-spacing: -0.01em;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature {
  padding: 24px;
  background: #fff;
  border: 1px solid #e8e8e8;
  border-radius: 12px;
}

.feature h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature p {
  font-size: 0.95rem;
  color: #555;
  line-height: 1.5;
}

/* ── Screenshot ───────────────────────────────────────────── */

.screenshot {
  padding: 40px 0 80px;
  text-align: center;
}

.screenshot img {
  margin: 0 auto;
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  border: 1px solid #e0e0e0;
}

/* ── Bottom CTA ───────────────────────────────────────────── */

.bottom-cta {
  padding: 80px 0;
  text-align: center;
  background: #fff;
  border-top: 1px solid #eee;
}

.bottom-cta h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.bottom-cta p {
  color: #666;
  margin-bottom: 24px;
}

/* ── Footer ───────────────────────────────────────────────── */

footer {
  padding: 32px 0;
  text-align: center;
  border-top: 1px solid #eee;
}

footer p {
  font-size: 0.85rem;
  color: #999;
}

/* ── Responsive ───────────────────────────────────────────── */

@media (max-width: 768px) {
  .hero {
    padding: 64px 0 48px;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .hero .tagline {
    font-size: 1.1rem;
  }

  .feature-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .features {
    padding: 48px 0;
  }
}