:root {
  --bg: #f1f2f6;
  --ink: #0b1020;
  --muted: #5b6478;
  --card-radius: 18px;
  --card-shadow: 3px 6px 6px 0 rgba(0, 0, 0, 0.11);
  --gap: 22px;
  --max: 1430px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
}

html, body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  margin: 0 auto;
  max-width: var(--max);
  padding: 52px 25px 60px;
  min-height: 100vh;
}

.site-header {
  text-align: center;
  margin-bottom: 46px;
}

.site-title {
  font-size: clamp(40px, 6vw, 76px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1;
  display: inline-flex;
  gap: 0.18em;
  align-items: baseline;
}

.site-title-cool   { color: #ff6b6b; }
.site-title-stem   { color: #1ea7fd; }
.site-title-games  { color: #0b1020; }

.site-tagline {
  font-size: 20px;
  color: var(--muted);
  margin-top: 12px;
}

.posts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto;
  gap: var(--gap);
  justify-content: center;
}

.page-link {
  position: relative;
  display: block;
  aspect-ratio: 285 / 107;
  width: 100%;
  border-radius: var(--card-radius);
  overflow: hidden;
  text-decoration: none;
  color: #fff;
  transition: transform 0.07s linear, box-shadow 0.07s linear;
  will-change: transform;
  background: #e7e7e7;
}

.page-link:hover {
  box-shadow: var(--card-shadow);
  transform: scale(1.023);
}

.page-link:active {
  transform: scale(1.011);
}

.page-link-inner {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  padding: 18px 22px;
  text-align: center;
}

.page-link-title {
  font-size: clamp(22px, 2.4vw, 34px);
  font-weight: 800;
  letter-spacing: -0.01em;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

.page-link-sub {
  margin-top: 6px;
  font-size: 13px;
  font-weight: 500;
  opacity: 0.92;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.page-link-ext {
  position: absolute;
  top: 10px;
  right: 12px;
  font-size: 11px;
  background: rgba(0, 0, 0, 0.35);
  padding: 3px 7px;
  border-radius: 999px;
  letter-spacing: 0.05em;
}

.site-footer {
  margin-top: 60px;
  text-align: center;
  color: var(--muted);
  font-size: 15px;
}

.site-footer a {
  color: var(--muted);
  text-decoration: underline;
}

@media (max-width: 1130px) {
  .posts {
    grid-template-columns: 1fr 1fr;
    max-width: 900px;
    margin: 0 auto;
    gap: 16px;
  }
}

@media (max-width: 600px) {
  .posts {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .container { padding: 30px 12px 40px; }
  .site-header { margin-bottom: 28px; }
}