/* Mobile-First CSS: Base styles are for mobile, overrides for larger screens */

/* Reset and base styles */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;800&display=swap');

html, body {
  background: linear-gradient(135deg, #0a1822 0%, #00f6ff 100%);
  height: 100%;
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  scroll-behavior: smooth;
  font-family: 'Inter', 'Segoe UI', Arial, sans-serif;
  color: #f1efeb;
}

*, *::before, *::after {
  box-sizing: inherit;
}

/* Base layout containers */
main, header, footer, .products, .banner, .logo-header {
  width: 100%;
  max-width: 100%;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1rem;
  padding-right: 1rem;
  position: relative;
}

main {
  margin-top: 1rem;
  margin-bottom: 1rem;
}

/* Header */
.logo-header {
  background: linear-gradient(90deg, #0e243f 0%, #30465e 100%);
  color: #fff;
  padding-top: 1rem;
  padding-bottom: 1rem;
  text-align: center;
  border-radius: 0 0 18px 18px;
  box-shadow: 0 2px 16px #0003;
}

.logo-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.logo-icon {
  height: 48px;
  width: 48px;
  object-fit: contain;
}

.logo-header h1 {
  font-size: 1.5rem;
  font-weight: 800;
  margin: 0;
  color: #fff;
}

.tagline {
  font-size: 0.9rem;
  margin-top: 0.5rem;
  color: #e3e7ef;
}

/* Navigation */
.main-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1rem;
}

.main-nav a {
  text-decoration: none;
  color: #00e6ff;
  font-weight: 600;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  background: #0e2233;
  transition: background 0.2s, color 0.2s, box-shadow 0.2s;
  box-shadow: 0 2px 8px #0001;
}

.main-nav a:hover {
  background: #00e6ff;
  color: #1a2233;
  box-shadow: 0 0 16px 4px #00e6ffcc;
}

/* Hero Section */
.hero {
  color: #fff;
  text-align: center;
  padding: 2rem 1rem;
  border-radius: 18px;
  margin: 1.5rem 0;
  box-shadow: 0 6px 32px rgba(0,255,255,0.13), 0 1.5px 8px rgba(0,0,0,0.08);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 320px;
  background: linear-gradient(135deg, #011c2c 0%, #012a42 50%, #013d5c 100%);
}

.hero-bg {
  width: 180px;
  height: 180px;
  object-fit: contain;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  opacity: 0.5;
  filter: drop-shadow(0 0 20px #00e6ff);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 900;
  margin-bottom: 0.5em;
  letter-spacing: -1px;
  text-shadow: 0 2px 8px #000a;
}

.hero-lead {
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 0.5em;
  text-shadow: 0 2px 8px #000a;
}

.hero-contact {
  font-size: 1rem;
  font-weight: 800;
  margin-bottom: 1.2em;
  text-shadow: 0 2px 8px #000a;
}

.hero a {
  color: #ffd600;
  font-weight: 900;
}

/* Buttons */
.hero-btn, .cta-btn {
  background: linear-gradient(90deg, #00e6ff 0%, #1de9b6 100%);
  color: #1a2233;
  font-weight: 700;
  border: none;
  border-radius: 8px;
  box-shadow: 0 2px 12px #0003;
  transition: all 0.2s;
  padding: 0.8rem 1.5rem;
  font-size: 1rem;
  text-decoration: none;
  display: inline-block;
}

.hero-btn:hover, .cta-btn:hover {
  box-shadow: 0 0 22px 8px #00e6ffcc;
  transform: scale(1.05);
}

/* Features Section */
.features {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin: 1.5rem 0;
}

.feature-card {
  background: linear-gradient(120deg, #070d13 60%, #00f6ff 100%);
  color: #fffbe8;
  border-radius: 14px;
  box-shadow: 0 2px 12px #0003;
  padding: 1.5rem 1rem;
  text-align: center;
}

.feature-icon {
  width: 80px;
  height: 80px;
  margin-bottom: 1rem;
  filter: drop-shadow(0 2px 8px #1de9b633);
}

.feature-card h3 {
  font-size: 1.2rem;
  color: #fffbe8;
  text-shadow: 0 1px 2px #0008;
}

.feature-card p {
  color: #e3e7ef;
  font-size: 1rem;
}

/* CTA Banner */
.cta-banner {
  background: linear-gradient(90deg, #070d13 0%, #00f6ff 100%);
  color: #f1efeb;
  border-radius: 14px;
  box-shadow: 0 2px 12px #0003;
  padding: 2rem 1rem;
  text-align: center;
  margin: 1.5rem 0;
}

.cta-banner h2 {
  font-size: 1.5rem;
  font-weight: 900;
  margin-bottom: 0.7rem;
}

.cta-banner p {
  font-size: 1.1rem;
  margin-bottom: 1.2rem;
}

/* Blog Section */
.blog-section {
  background: linear-gradient(90deg, #070d13 0%, #00f6ff 100%);
  color: #f1efeb;
  border-radius: 16px;
  box-shadow: 0 2px 12px #0003;
  padding: 2rem 1rem;
  margin: 1.5rem 0;
}

.blog-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
}

.blog-post {
  background: #0e2233;
  color: #f1efeb;
  border-radius: 12px;
  box-shadow: 0 2px 8px #0002;
  padding: 1rem 1.2rem;
  width: 100%;
  max-width: 320px;
}

/* Footer */
footer {
  text-align: center;
  padding: 2rem 1rem;
  color: #e3e7ef;
}

/* Deal Buttons */
.deal-btn-left, .deal-btn-right {
  display: none; /* Hidden on mobile */
}

.deal-btn-mobile {
  display: block;
  width: 100%;
  text-align: center;
  margin-top: 1rem;
  z-index: 1100;
}

.deal-btn {
  background: #3d3934;
  color: #fff;
  padding: 11px 28px;
  border-radius: 9px;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 2px 8px #0002;
  transition: background 0.2s;
  font-size: 1.15rem;
}

/* Tablet and larger screens */
@media (min-width: 701px) {
  /* Layout */
  main, header, footer, .products, .banner, .logo-header {
    max-width: 900px;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }

  /* Header */
  .logo-header {
    padding: 2.5rem 1rem 1.2rem 1rem;
  }
  .logo-icon {
    height: 96px;
    width: 96px;
  }
  .logo-header h1 {
    font-size: 2.4rem;
  }
  .tagline {
    font-size: 1rem;
  }
  .main-nav {
    gap: 1.2rem;
  }

  /* Hero */
  .hero {
    min-height: 420px;
  }
  .hero-bg {
    width: 240px;
    height: 240px;
  }
  .hero h1 {
    font-size: 3.2rem;
  }
  .hero-lead {
    font-size: 1.7rem;
  }
  .hero-contact {
    font-size: 1.3rem;
  }
  .hero-btn {
    padding: 1em 2.2em;
    font-size: 1.2rem;
  }

  /* Features */
  .features {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
  }
  .feature-card {
    flex: 1 1 280px;
    max-width: 320px;
  }

  /* Blog */
  .blog-list {
    flex-direction: row;
    justify-content: center;
    gap: 2rem;
  }

  /* Deal Buttons */
  .deal-btn-mobile {
    display: none;
  }
  .deal-btn-left, .deal-btn-right {
    display: block;
    position: absolute;
    top: 38px;
    z-index: 1100;
  }
  .deal-btn-left { left: 38px; }
  .deal-btn-right { right: 38px; }
  .deal-btn {
    padding: 7px 18px;
    font-size: 1rem;
  }
}

/* Accessibility */
a:focus-visible, button:focus-visible {
  outline: 2.5px solid #43e97b;
  outline-offset: 2px;
  box-shadow: 0 0 0 4px #00ffe733;
}