:root {
  --bg: #0d0221;
  --bg-panel: #190b3d;
  --cyan: #00f0ff;
  --magenta: #ff2e88;
  --yellow: #ffd700;
  --green: #39ff14;
  --text: #e8e6f0;
  --text-dim: #8b86a8;
  --pixel: "Press Start 2P", ui-monospace, "SF Mono", Consolas, monospace;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Consolas, monospace;
}

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
  line-height: 1.7;
  overflow-x: hidden;
}

/* 별 배경 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(1px 1px at 20% 30%, #fff 50%, transparent 50%),
    radial-gradient(1px 1px at 70% 15%, #fff 50%, transparent 50%),
    radial-gradient(2px 2px at 45% 70%, var(--cyan) 50%, transparent 50%),
    radial-gradient(1px 1px at 85% 60%, var(--magenta) 50%, transparent 50%),
    radial-gradient(1px 1px at 10% 85%, #fff 50%, transparent 50%);
  background-size: 400px 400px;
  opacity: 0.5;
}

/* CRT 스캔라인 + 비네트 */
.crt {
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  background:
    repeating-linear-gradient(to bottom,
      rgba(0, 0, 0, 0.22) 0, rgba(0, 0, 0, 0.22) 1px,
      transparent 1px, transparent 3px),
    radial-gradient(ellipse at center, transparent 55%, rgba(0, 0, 0, 0.55) 100%);
}

a { color: var(--cyan); }
a:focus-visible, button:focus-visible {
  outline: 3px solid var(--yellow);
  outline-offset: 3px;
}

.screen {
  max-width: 1100px;
  margin: 0 auto;
  padding: 6rem 1.25rem;
}

#title {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 1.5rem;
}

.insert-coin {
  font-family: var(--pixel);
  font-size: clamp(0.5rem, 1.6vw, 0.7rem);
  color: var(--text-dim);
  letter-spacing: 0.3em;
  margin: 0;
}

.logo {
  font-family: var(--pixel);
  font-size: clamp(2rem, 11vw, 5.5rem);
  margin: 0;
  color: var(--cyan);
  letter-spacing: 0.06em;
  text-shadow:
    4px 4px 0 var(--magenta),
    0 0 28px rgba(0, 240, 255, 0.55);
}

.tagline {
  font-size: clamp(0.85rem, 2.4vw, 1.05rem);
  color: var(--text);
  min-height: 1.7em;
  margin: 0;
}

.caret { color: var(--cyan); animation: blink 1s steps(1) infinite; }

.press-start {
  font-family: var(--pixel);
  font-size: clamp(0.6rem, 2vw, 0.9rem);
  color: var(--yellow);
  margin: 1rem 0 0;
  animation: blink 1.2s steps(1) infinite;
}

.scroll-hint {
  font-size: 1.5rem;
  text-decoration: none;
  animation: bob 1.6s ease-in-out infinite;
}

/* ---------- HIGH SCORE ---------- */

.section-title {
  font-family: var(--pixel);
  font-size: clamp(1rem, 3.5vw, 1.6rem);
  color: var(--yellow);
  text-shadow: 3px 3px 0 rgba(255, 46, 136, 0.6);
  margin: 0 0 2.5rem;
}

.score-board {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-bottom: 3rem;
}

.score-main, .score-grid li, .chart {
  background: var(--bg-panel);
  border: 3px solid var(--cyan);
  box-shadow: 0 0 0 3px var(--bg), 6px 6px 0 rgba(0, 240, 255, 0.25);
}

.score-main { padding: 1.75rem; text-align: center; }
.score-label, .score-since {
  font-family: var(--pixel);
  font-size: 0.6rem;
  color: var(--text-dim);
  margin: 0;
  letter-spacing: 0.2em;
}
.score-value {
  font-family: var(--pixel);
  font-size: clamp(2rem, 9vw, 4rem);
  color: var(--yellow);
  margin: 0.75rem 0;
  text-shadow: 0 0 24px rgba(255, 215, 0, 0.5);
}

.score-grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin: 0;
  padding: 0;
}
.score-grid li { padding: 1rem; text-align: center; border-color: var(--magenta); }
.score-grid .k {
  display: block;
  font-family: var(--pixel);
  font-size: 0.5rem;
  color: var(--text-dim);
  letter-spacing: 0.15em;
}
.score-grid .v {
  display: block;
  font-family: var(--pixel);
  font-size: clamp(1.1rem, 4vw, 1.6rem);
  color: var(--green);
  margin: 0.6rem 0 0.2rem;
}
.score-grid .u { font-family: var(--pixel); font-size: 0.45rem; color: var(--text-dim); }

.chart-title { font-family: var(--pixel); font-size: 0.75rem; color: var(--cyan); margin: 0 0 1rem; }
.record { color: var(--magenta); animation: blink 1.4s steps(1) infinite; }

.chart {
  list-style: none;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  align-items: end;
  gap: 0.4rem;
  height: 260px;
  margin: 0;
  padding: 1rem 1rem 0;
  border-color: var(--text-dim);
}
.chart li {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  height: 100%;
}
.chart .bar {
  width: 100%;
  height: var(--h);
  min-height: 3px;
  background: var(--cyan);
  transition: height 900ms cubic-bezier(0.2, 0.8, 0.2, 1);
}
.chart li.is-record .bar { background: var(--magenta); box-shadow: 0 0 18px var(--magenta); }
.chart .yr, .chart .n {
  font-family: var(--pixel);
  font-size: 0.45rem;
  color: var(--text-dim);
  margin-top: 0.35rem;
}
.chart .n { color: var(--text); }
.chart-note { color: var(--text-dim); font-size: 0.85rem; }
.chart-note strong { color: var(--magenta); }

@media (min-width: 960px) {
  .score-board { grid-template-columns: 1fr 1.2fr; align-items: stretch; }
}

/* ---------- SELECT STAGE ---------- */

.world { margin-bottom: 3rem; }
.world-title { font-family: var(--pixel); font-size: 0.8rem; color: var(--text); margin: 0 0 1.25rem; }
.world-no { color: var(--magenta); }

.cards {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin: 0;
  padding: 0;
}

.card a {
  display: block;
  height: 100%;
  padding: 1.25rem;
  background: var(--bg-panel);
  border: 3px solid var(--text-dim);
  color: var(--text);
  text-decoration: none;
  transition: transform 160ms, border-color 160ms, box-shadow 160ms;
}
.card a:hover, .card a:focus-visible {
  transform: translateY(-6px);
  border-color: var(--cyan);
  box-shadow: 0 8px 0 rgba(0, 240, 255, 0.3);
}

.card-lang {
  display: inline-block;
  font-family: var(--pixel);
  font-size: 0.45rem;
  padding: 0.35rem 0.5rem;
  border: 2px solid currentColor;
  color: var(--text-dim);
  margin-bottom: 0.75rem;
}
.card-lang[data-lang="Go"] { color: var(--cyan); }
.card-lang[data-lang="Rust"] { color: var(--magenta); }
.card-lang[data-lang="C"] { color: var(--yellow); }
.card-lang[data-lang="JavaScript"] { color: var(--green); }

.card-name {
  display: block;
  font-family: var(--pixel);
  font-size: 0.7rem;
  color: var(--cyan);
  word-break: break-word;
  margin-bottom: 0.6rem;
}
.card-desc { display: block; font-size: 0.9rem; color: var(--text-dim); }
.star { display: inline-block; margin-top: 0.6rem; font-size: 0.8rem; color: var(--yellow); }

@media (min-width: 640px) { .cards { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .cards { grid-template-columns: repeat(3, 1fr); } }

/* ---------- PLAYER ---------- */

.player-bio { color: var(--text-dim); max-width: 60ch; }

.player-info {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.6rem 1.5rem;
  margin: 0 0 2rem;
}
.player-info dt { font-family: var(--pixel); font-size: 0.5rem; color: var(--magenta); align-self: center; }
.player-info dd { margin: 0; }

.links { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2rem; }
.links a {
  font-family: var(--pixel);
  font-size: 0.65rem;
  text-decoration: none;
  padding: 0.9rem 1.25rem;
  border: 3px solid var(--cyan);
}
.links a:hover, .links a:focus-visible { background: var(--cyan); color: var(--bg); }

.foot {
  text-align: center;
  padding: 3rem 1.25rem 4rem;
  font-family: var(--pixel);
  font-size: 0.55rem;
  color: var(--text-dim);
}
.foot-c { color: var(--magenta); }

@keyframes blink { 50% { opacity: 0; } }
@keyframes bob { 50% { transform: translateY(10px); } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
}