:root {
  --bg: #0f172a;
  --bg-alt: #111b32;
  --text: #e5e7eb;
  --muted: #cbd5e1;
  --accent: #22c55e;
  --card: #1e293b;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
}

.container {
  width: min(1120px, 92%);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  background: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(148, 163, 184, 0.25);
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding: 12px 0;
  position: relative;
}

.logo-link {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
}

.logo {
  width: 150px;
}

.top-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.top-nav a {
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
}

.top-nav a:hover {
  color: var(--accent);
}

.hero {
  padding: 48px 0 22px;
}

.hero h1 {
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.2;
  margin-top: 0;
  margin-bottom: 16px;
}

.hero p {
  color: var(--muted);
  margin-bottom: 18px;
}

.slots-preview {
  margin: 18px 0 20px;
  padding: 16px;
  border: none;
  border-radius: 12px;
  background: rgba(17, 27, 50, 0.65);
}

.slots-preview h2 {
  margin: 0 0 12px;
  font-size: clamp(20px, 2.8vw, 28px);
}

.slots-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(110px, 170px));
  gap: 12px;
  justify-content: start;
}

.slot-link {
  display: block;
  width: 100%;
}

.slot-banner {
  width: 100%;
  border: 1px solid rgba(148, 163, 184, 0.3);
  background: var(--card);
}

.hero-banner {
  border: 1px solid rgba(148, 163, 184, 0.3);
}

.section {
  padding: 28px 0;
}

.section.alt {
  background: var(--bg-alt);
}

.section h2,
.section h3 {
  line-height: 1.3;
  margin-top: 0;
}

.section p,
.section li {
  color: var(--muted);
}

.section ul {
  margin-top: 10px;
  margin-bottom: 10px;
  padding-left: 20px;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: start;
}

.side-banner {
  border: 1px solid rgba(148, 163, 184, 0.3);
  background: var(--card);
}

.conclusion {
  padding-bottom: 54px;
}

.site-footer {
  border-top: 1px solid rgba(148, 163, 184, 0.25);
  padding: 18px 0 26px;
  text-align: center;
  color: #94a3b8;
  font-size: 14px;
}

@media (max-width: 900px) {
  .slots-preview {
    border: 1px solid rgba(148, 163, 184, 0.25);
  }

  .slots-grid {
    grid-template-columns: repeat(2, minmax(110px, 170px));
  }

  .two-col {
    grid-template-columns: 1fr;
  }

  .header-inner {
    flex-direction: column;
    align-items: center;
  }

  .logo-link {
    position: static;
    transform: none;
  }

  .logo {
    width: 128px;
  }
}

@media (max-width: 520px) {
  .slots-grid {
    grid-template-columns: repeat(2, minmax(110px, 150px));
    justify-content: center;
  }
}