/* Reset & base */
*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  color: #1a1a1a;
  background: #ffffff;
  line-height: 1.55;
}
img { max-width: 100%; display: block; }
a { color: inherit; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  margin: 0 0 32px;
  letter-spacing: -0.02em;
  text-align: center;
}

/* Hero */
.hero {
  background: linear-gradient(180deg, #0d2eff 0%, #1a3df0 60%, #0a1c8a 100%);
  color: #fff;
  padding: 24px 0 80px;
  position: relative;
  overflow: hidden;
}

.nav {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  gap: 28px;
  justify-content: flex-end;
  font-weight: 600;
  font-size: 0.95rem;
}
.nav a {
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  transition: color 0.2s;
}
.nav a:hover { color: #fff; }

.hero-inner {
  text-align: center;
  padding: 40px 24px 0;
  max-width: 800px;
  margin: 0 auto;
}

.hero-logo {
  width: clamp(320px, 55vw, 620px);
  height: auto;
  margin: 0 auto -160px;
  filter: drop-shadow(0 12px 30px rgba(0,0,0,0.4));
}

.hero-title {
  font-size: clamp(2.25rem, 5.5vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  margin: 0 0 20px;
  line-height: 1.05;
  text-shadow: 0 2px 12px rgba(0,0,0,0.25);
}

.hero-subtitle {
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  color: rgba(255,255,255,0.92);
  max-width: 580px;
  margin: 0 auto 36px;
  font-weight: 400;
}

.hero-cta {
  display: inline-block;
  transition: transform 0.2s ease;
}
.hero-cta:hover { transform: scale(1.04); }
.hero-cta img { height: 60px; width: auto; }

.hero-platforms {
  margin: 20px 0 0;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: rgba(255,255,255,0.8);
  text-transform: uppercase;
}

/* Audience */
.audience {
  padding: 90px 0;
  background: #f7f8fc;
}
.audience-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.audience-card {
  background: #fff;
  border-radius: 24px;
  padding: 48px 36px;
  text-align: center;
  box-shadow: 0 4px 24px rgba(0,0,0,0.06);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.audience-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.1);
}
.audience-emoji {
  font-size: 4rem;
  margin-bottom: 16px;
}
.audience-card h2 {
  font-size: 1.75rem;
  margin: 0 0 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.audience-card p {
  margin: 0;
  color: #4a4a4a;
  font-size: 1.05rem;
}

/* Features */
.features {
  padding: 90px 0;
  background: #fff;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.feature {
  padding: 32px 24px;
  border-radius: 20px;
  background: #f7f8fc;
  transition: background 0.2s;
}
.feature:hover { background: #eef0f8; }
.feature h3 {
  margin: 0 0 12px;
  font-size: 1.25rem;
  font-weight: 700;
  color: #0d2eff;
}
.feature p {
  margin: 0;
  color: #4a4a4a;
  font-size: 0.98rem;
}

/* Screenshots */
.screenshots {
  padding: 90px 0;
  background: #0a0a0a;
  color: #fff;
}
.screenshots .section-title { color: #fff; }
.screenshots-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.screenshots-grid img {
  border-radius: 14px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.5);
  transition: transform 0.3s ease;
}
.screenshots-grid img:hover { transform: scale(1.02); }

/* Legal & Support */
.legal, .support {
  padding: 90px 0;
}
.legal { background: #f7f8fc; }
.support { background: #fff; }

.legal .container, .support .container {
  max-width: 780px;
}
.legal .section-title, .support .section-title { text-align: left; }

.legal h3, .support h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 32px 0 8px;
  color: #1a1a1a;
}
.legal p, .support p {
  color: #3a3a3a;
  font-size: 1rem;
  margin: 0 0 16px;
}
.legal a, .support a {
  color: #0d2eff;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.legal-meta {
  color: #888;
  font-size: 0.9rem;
  font-style: italic;
}

.support-cta { margin: 24px 0 48px; }
.button {
  display: inline-block;
  padding: 14px 28px;
  background: #0d2eff;
  color: #fff !important;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none !important;
  transition: background 0.2s, transform 0.2s;
}
.button:hover {
  background: #0a25d4;
  transform: translateY(-2px);
}

.support details {
  background: #f7f8fc;
  border-radius: 12px;
  padding: 16px 20px;
  margin-bottom: 12px;
  cursor: pointer;
}
.support details summary {
  font-weight: 600;
  list-style: none;
  outline: none;
  position: relative;
  padding-right: 24px;
}
.support details summary::-webkit-details-marker { display: none; }
.support details summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.4rem;
  color: #0d2eff;
  transition: transform 0.2s;
}
.support details[open] summary::after {
  content: "−";
}
.support details p {
  margin: 12px 0 0;
  color: #4a4a4a;
}

/* Footer */
.footer {
  padding: 40px 0;
  background: #0a0a0a;
  color: #aaa;
  text-align: center;
  font-size: 0.92rem;
}
.footer p { margin: 0 0 8px; }
.footer a { color: #ddd; text-decoration: none; }
.footer a:hover { color: #fff; }
.footer-meta {
  font-size: 0.78rem;
  color: #666;
  margin-top: 16px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* Responsive */
@media (max-width: 768px) {
  .audience-grid {
    grid-template-columns: 1fr;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .screenshots-grid {
    grid-template-columns: 1fr;
  }
  .nav { gap: 18px; font-size: 0.88rem; }
  .audience, .features, .screenshots, .legal, .support {
    padding: 60px 0;
  }
}

@media (max-width: 480px) {
  .hero-cta img { height: 48px; }
}