:root {
  color-scheme: dark;
  --bg: #061623;
  --surface: rgba(11, 22, 35, 0.90);
  --surface-strong: rgba(255, 255, 255, 0.08);
  --surface-soft: rgba(255, 255, 255, 0.06);
  --accent: #1db4ff;
  --accent-soft: rgba(29, 180, 255, 0.16);
  --text: #f5f8fb;
  --text-muted: #a3b8ce;
  --border: rgba(255, 255, 255, 0.12);
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.20);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: radial-gradient(circle at top left, rgba(29, 180, 255, 0.18), transparent 28%),
    radial-gradient(circle at bottom right, rgba(255, 255, 255, 0.04), transparent 26%),
    linear-gradient(180deg, #061623 0%, #01101c 100%);
  color: var(--text);
}

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

button,
input,
textarea,
a {
  font: inherit;
}

.container {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(16px);
  background: rgba(9, 18, 32, 0.78);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}

.brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.18rem;
  text-decoration: none;
  color: var(--text);
}

.brand span {
  display: block;
  font-size: clamp(1.3rem, 2.4vw, 1.75rem);
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.brand small {
  display: block;
  margin-top: 0.1rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
}

.site-nav {
  display: flex;
  gap: 1.2rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.site-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.25s ease, transform 0.25s ease;
}

.site-nav a:hover {
  color: var(--accent);
  transform: translateY(-1px);
}

.hero {
  position: relative;
  min-height: 88vh;
  display: grid;
  place-items: center;
  padding: 6rem 0 4rem;
  overflow: hidden;
  background-image: linear-gradient(180deg, rgba(6, 22, 35, 0.92), rgba(6, 22, 35, 0.65)),
    url('assets/volley_big_back.jpg');
  background-size: cover;
  background-position: center;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(29, 180, 255, 0.18), transparent 25%);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 920px;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  margin-bottom: 1.6rem;
  padding: 0.7rem 1.1rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--accent);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.8rem;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.8rem, 5vw, 4.4rem);
  line-height: 1.02;
  letter-spacing: -0.05em;
  max-width: 11ch;
}

.hero p {
  margin: 1.6rem auto 2.4rem;
  max-width: 720px;
  color: var(--text-muted);
  line-height: 1.9;
  font-size: 1.05rem;
}

.hero-actions {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 1.7rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease;
}

.btn-primary {
  background: linear-gradient(135deg, #1db4ff, #15a7ff);
  color: #fff;
  box-shadow: 0 18px 40px rgba(29, 180, 255, 0.28);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.btn:hover {
  transform: translateY(-2px);
}

.hero-stats {
  margin-top: 3rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.hero-stats div {
  padding: 1.35rem 1.3rem;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-stats strong {
  display: block;
  color: #ffffff;
  font-size: 1.35rem;
  margin-bottom: 0.35rem;
}

.section {
  padding: 5rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-label {
  display: inline-flex;
  border-radius: 999px;
  padding: 0.65rem 1rem;
  background: rgba(29, 180, 255, 0.14);
  color: var(--accent);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.section h2 {
  margin: 1rem auto 0;
  font-size: clamp(2rem, 3.5vw, 3rem);
  max-width: 700px;
  line-height: 1.08;
}

.section p {
  margin: 1.6rem auto 0;
  max-width: 720px;
  color: var(--text-muted);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  align-items: center;
}

.glass-card {
  position: relative;
  padding: 2.2rem;
  border-radius: 32px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
}

.about-card h2 {
  margin-top: 1rem;
  font-size: clamp(2rem, 2.6vw, 2.7rem);
}

.feature-list {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  color: var(--text-muted);
}

.feature-list li::before {
  content: '✓';
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.85rem;
  height: 1.85rem;
  border-radius: 0.8rem;
  background: rgba(29, 180, 255, 0.18);
  color: var(--accent);
  font-size: 0.95rem;
}

.about-image {
  overflow: hidden;
  border-radius: 32px;
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 420px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.product-card {
  overflow: hidden;
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.10);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.14);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.product-card:hover {
  transform: translateY(-6px);
  border-color: rgba(29, 180, 255, 0.28);
}

.product-card img {
  width: 100%;
  display: block;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.product-card .card-body {
  padding: 1.55rem;
}

.product-card h3 {
  margin: 0 0 0.8rem;
  font-size: 1.2rem;
}

.product-card p {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.75;
}

.market-links {
  margin-top: 3.4rem;
  padding: 2rem;
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.market-links h3 {
  margin: 0 0 1rem;
  font-size: 1.5rem;
}

.market-links p {
  margin: 0 0 1.8rem;
  color: var(--text-muted);
}

.market-links .link-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.market-links a {
  display: block;
  padding: 1.35rem 1.2rem;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  text-decoration: none;
  color: var(--text);
  transition: transform 0.25s ease, background-color 0.25s ease;
}

.market-links a:hover {
  transform: translateY(-3px);
  background: rgba(29, 180, 255, 0.14);
}

.market-links strong {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 1.05rem;
}

.quality {
  background: linear-gradient(180deg, rgba(9, 17, 28, 0.96), rgba(6, 22, 35, 0.88));
}

.quality-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
  align-items: center;
}

.quality-card {
  padding: 2.3rem;
  border-radius: 32px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.11);
}

.quality-card h3 {
  margin: 0 0 1rem;
  font-size: 2rem;
}

.quality-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 1rem;
}

.quality-list li {
  padding: 1rem 1.1rem;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-muted);
}

.quality-aside {
  display: grid;
  gap: 1rem;
}

.quality-aside img {
  width: 100%;
  border-radius: 28px;
  height: 100%;
  object-fit: cover;
  min-height: 420px;
}

.contact {
  padding-bottom: 6rem;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.contact-card,
.contact-details {
  border-radius: 32px;
  padding: 2rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.contact-card h3,
.contact-details h3 {
  margin-top: 0;
}

.contact-card p,
.contact-details p {
  color: var(--text-muted);
  margin: 0.85rem 0 0;
  line-height: 1.85;
}

.contact-list {
  list-style: none;
  padding: 0;
  margin: 2rem 0 0;
  display: grid;
  gap: 1rem;
}

.contact-list li {
  display: grid;
  gap: 0.45rem;
}

.contact-list a {
  color: var(--accent);
  text-decoration: none;
}

.map-card {
  margin-top: 1.6rem;
  border-radius: 24px;
  overflow: hidden;
  min-height: 320px;
}

.map-card iframe {
  width: 100%;
  border: 0;
  min-height: 320px;
  display: block;
}

.site-footer {
  padding: 2rem 0 3rem;
  text-align: center;
  color: var(--text-muted);
}

.site-footer p {
  margin: 0.4rem 0 0;
  font-size: 0.95rem;
}

@media (max-width: 960px) {
  .hero-stats,
  .market-links .link-grid,
  .product-grid,
  .contact-grid,
  .quality-grid,
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .site-nav {
    justify-content: center;
  }
}

@media (max-width: 680px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-nav {
    width: 100%;
    justify-content: space-between;
    gap: 0.8rem;
  }

  .hero {
    padding-top: 5rem;
  }

  .hero p {
    font-size: 1rem;
  }
}