:root {
  --bg: #0b0d12;
  --surface: #121620;
  --surface-elevated: #171c28;
  --border: #232a3b;
  --border-hover: #36415c;
  --text: #eef2f8;
  --text-muted: #98a2b8;
  --text-dim: #667085;
  --mint: #6ee7b7;
  --mint-soft: rgba(110, 231, 183, 0.12);
  --sky: #38bdf8;
  --sky-soft: rgba(56, 189, 248, 0.12);
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

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

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
}

.bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(circle at 50% 25%, black 20%, transparent 78%);
  pointer-events: none;
  z-index: 0;
}

.bg-glow {
  position: fixed;
  top: -180px;
  left: 50%;
  transform: translateX(-50%);
  width: 760px;
  height: 460px;
  background: radial-gradient(
    ellipse at center,
    rgba(110, 231, 183, 0.12) 0%,
    rgba(56, 189, 248, 0.08) 45%,
    transparent 75%
  );
  filter: blur(48px);
  pointer-events: none;
  z-index: 0;
}

.page-shell {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  max-width: 980px;
  margin: 0 auto;
  padding: 28px 24px 32px;
  display: flex;
  flex-direction: column;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text);
}

.brand-mark {
  display: grid;
  grid-template-columns: repeat(2, 11px);
  grid-template-rows: repeat(2, 11px);
  gap: 3px;
}

.mark-tile {
  border-radius: 3px;
  background: var(--surface-elevated);
  border: 1px solid var(--border-hover);
}

.mark-tile--mint {
  background: var(--mint);
  border-color: var(--mint);
}

.mark-tile--sky {
  background: var(--sky);
  border-color: var(--sky);
}

.brand-name {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.domain-pill {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 12px;
}

.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 56px;
  padding: 36px 0 48px;
}

.hero {
  max-width: 660px;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--mint);
  background: var(--mint-soft);
  border: 1px solid rgba(110, 231, 183, 0.24);
  border-radius: 999px;
  padding: 5px 13px;
  margin-bottom: 20px;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 10px var(--mint);
  animation: pulse 2.4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.45;
    transform: scale(0.85);
  }
}

.hero-title {
  margin: 0 0 16px;
  font-size: clamp(2.35rem, 5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.035em;
  background: linear-gradient(135deg, #ffffff 10%, #cbd5e1 95%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-subtitle {
  margin: 0 0 24px;
  font-size: 1.08rem;
  color: var(--text-muted);
  max-width: 560px;
}

.hero-pillars {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pillar {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
}

.shelf-section {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 16px;
}

.section-title {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.section-note {
  margin: 0;
  font-size: 0.875rem;
  color: var(--text-dim);
}

.games-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.game-card {
  background: linear-gradient(180deg, rgba(23, 28, 40, 0.85), rgba(18, 22, 32, 0.92));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.game-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.game-card--featured {
  grid-column: 1 / -1;
  border-color: rgba(110, 231, 183, 0.28);
  background: linear-gradient(135deg, rgba(110, 231, 183, 0.05), rgba(18, 22, 32, 0.96) 55%);
}

.game-card--featured:hover {
  border-color: rgba(110, 231, 183, 0.5);
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.card-index {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
}

.tag {
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: 999px;
  padding: 3px 10px;
}

.tag--next {
  color: var(--mint);
  background: var(--mint-soft);
  border: 1px solid rgba(110, 231, 183, 0.25);
}

.tag--planned {
  color: var(--sky);
  background: var(--sky-soft);
  border: 1px solid rgba(56, 189, 248, 0.2);
}

.card-body {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.card-copy {
  flex: 1;
}

.card-title {
  margin: 0 0 8px;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.card-desc {
  margin: 0;
  font-size: 0.94rem;
  color: var(--text-muted);
}

.card-actions {
  margin-top: 16px;
}

.play-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border-radius: 10px;
  background: rgba(110, 231, 183, 0.14);
  border: 1px solid rgba(110, 231, 183, 0.4);
  color: var(--mint);
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
}

.play-btn:hover {
  background: rgba(110, 231, 183, 0.22);
  border-color: var(--mint);
  transform: translateY(-1px);
}

.mini-board-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.mini-board {
  display: grid;
  grid-template-columns: repeat(3, 40px);
  grid-template-rows: repeat(3, 40px);
  gap: 5px;
  padding: 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.mini-cell {
  width: 40px;
  height: 40px;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
  padding: 0;
}

.mini-cell--fixed {
  background: var(--surface-elevated);
  color: var(--text-muted);
  cursor: default;
}

.mini-cell--editable:hover {
  border-color: var(--mint);
  background: rgba(110, 231, 183, 0.08);
}

.mini-cell--filled {
  color: var(--mint);
  border-color: rgba(110, 231, 183, 0.45);
}

.mini-cell--complete {
  background: rgba(110, 231, 183, 0.14);
  border-color: var(--mint);
  color: var(--mint);
}

.mini-hint {
  font-size: 0.74rem;
  color: var(--text-dim);
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 16px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--text-dim);
}

.site-footer p {
  margin: 0;
}

.mono {
  font-family: var(--font-mono);
}

@media (max-width: 700px) {
  .main-content {
    gap: 40px;
    padding: 24px 0 36px;
  }

  .games-grid {
    grid-template-columns: 1fr;
  }

  .card-body {
    flex-direction: column;
    align-items: flex-start;
  }

  .mini-board-wrap {
    align-self: stretch;
  }
}