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

body {
  background: radial-gradient(circle at top, #111 0%, #000 60%);
  color: #fff;
}

/* NAV */
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 28px;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-left img {
  width: 42px;
  height: 42px;
  border-radius: 14px;
}

.pro-badge {
  background: linear-gradient(135deg, #ffd54a, #ff9f00);
  color: #000;
  padding: 6px 14px;
  border-radius: 20px;
  font-weight: 600;
}

/* HERO */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  padding: 80px 8vw;
  align-items: center;
}

.hero-text h1 {
  font-size: 56px;
  line-height: 1.1;
  margin-bottom: 20px;
}

.hero-text p {
  font-size: 18px;
  opacity: 0.85;
  margin-bottom: 32px;
}

.cta .appstore {
  display: inline-block;
  padding: 14px 24px;
  border-radius: 14px;
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.cta .appstore:hover {
  box-shadow: 0 0 24px rgba(59, 130, 246, 0.7);
  transform: scale(1.05);
}

.cta .disabled {
  opacity: 0.6;
  cursor: default;
}

/* HERO PREVIEW */
.hero-visual {
  display: flex;
  justify-content: center;
}

.phone-frame {
  position: relative;
  width: 280px;
  margin: 0 auto;
  border-radius: 32px;
  padding: 12px;
  background: linear-gradient(145deg, #1a1a1a, #0d0d0d);
  box-shadow: 0 10px 60px rgba(0, 0, 0, 0.7);
}

.phone-frame::before {
  content: "";
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 6px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.15);
}

.app-preview {
  width: 100%;
  border-radius: 24px;
  display: block;
}

/* FEATURES */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 32px;
  padding: 80px 8vw;
}

.feature {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 20px;
  padding: 28px;
  backdrop-filter: blur(10px);
}

.feature h3 {
  margin-bottom: 10px;
}

/* CONTACT & SUPPORT */
.contact-section {
  padding: 80px 8vw;
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.section-header h2 {
  font-size: 36px;
  margin-bottom: 12px;
}

.section-header p {
  font-size: 18px;
  opacity: 0.8;
}

.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.glass {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 20px;
  padding: 28px;
  backdrop-filter: blur(10px);
  box-shadow: 0 0 40px rgba(0, 0, 0, 0.3);
}

.contact-info h3 {
  margin-bottom: 12px;
}

.support-email {
  color: #3b82f6;
  font-weight: 500;
  display: inline-block;
  margin-top: 10px;
  text-decoration: none;
}

.support-email:hover {
  text-decoration: underline;
}

.response-time {
  margin-top: 18px;
  font-size: 14px;
  opacity: 0.8;
}

.contact-form label {
  display: block;
  margin-bottom: 16px;
  font-size: 14px;
  color: #ccc;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  margin-top: 8px;
  padding: 12px;
  border-radius: 10px;
  border: none;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: 15px;
}

.contact-form textarea {
  min-height: 120px;
  resize: vertical;
}

.btn-primary {
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  color: #fff;
  border: none;
  padding: 12px 24px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #2563eb, #1e40af);
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.5);
}

/* FOOTER */
footer {
  padding: 40px 8vw;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-links {
  display: flex;
  gap: 20px;
  margin-bottom: 12px;
}

.footer-links a {
  color: #aaa;
  text-decoration: none;
  font-size: 14px;
}

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

.copyright {
  font-size: 12px;
  opacity: 0.6;
}

/* MOBILE */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-visual {
    order: -1;
  }

  .contact-container {
    grid-template-columns: 1fr;
  }

  .features {
    padding: 60px 6vw;
  }

  .contact-section {
    padding: 60px 6vw;
  }

  .phone-frame {
    width: 220px;
  }
}