* {
  box-sizing: border-box;
}

:root {
  --bg: radial-gradient(120% 120% at 0% 0%, #f7ecff 0%, #eef6ff 45%, #ffffff 100%);
  --panel: #ffffffee;
  --ink: #1b1f2a;
  --muted: #4f5a6a;
  --line: #dde4f0;
  --teal: #0ea5a5;
  --yellow: #f59e0b;
  --purple: #7c3aed;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: "Inter", "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", Arial, sans-serif;
}

.shell {
  width: min(1120px, 92vw);
  margin: 2rem auto 3rem;
  display: grid;
  gap: 1.2rem;
}

.hero {
  background: linear-gradient(135deg, #1d4ed8, var(--purple));
  color: #fff;
  border-radius: 16px;
  padding: 2rem;
  box-shadow: 0 20px 40px rgba(29, 78, 216, 0.2);
  display: grid;
  gap: 0.8rem;
}

.hero .kicker {
  margin: 0;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.85rem;
  color: #dbeafe;
}

h1 {
  margin: 0.3rem 0 0.7rem;
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  line-height: 1.15;
}

.lead {
  margin: 0;
  max-width: 75ch;
  color: #dbeafe;
}

.top-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.top-nav a {
  border-radius: 999px;
  border: 1px solid rgba(219, 234, 254, 0.5);
  color: #dbeafe;
  padding: 0.35rem 0.8rem;
  text-decoration: none;
}

.top-nav a:hover {
  background: rgba(255, 255, 255, 0.12);
}

.game-link-grid {
  margin-top: 0.8rem;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.8rem;
}

.game-link-card {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, #f8fbff, #ffffff);
  border-radius: 12px;
  padding: 0.9rem;
  color: inherit;
  text-decoration: none;
}

.game-link-card h3 {
  margin: 0 0 0.45rem;
  font-size: 1.05rem;
}

.game-link-card p {
  margin: 0 0 0.75rem;
  color: var(--muted);
}

.game-link-card span {
  color: #1d4ed8;
  font-weight: 700;
  font-size: 0.92rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1.1rem;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.8rem;
  align-items: center;
}

h2 {
  margin: 0;
  font-size: 1.1rem;
}

.chips {
  display: flex;
  gap: 0.55rem;
  flex-wrap: wrap;
}

.chips button,
button {
  border: 1px solid #d1def0;
  background: #f5f7ff;
  color: #1e293b;
  border-radius: 999px;
  padding: 0.45rem 0.9rem;
  cursor: pointer;
}

button:hover {
  background: #e8f0ff;
}

.chips button.active {
  background: #1d4ed8;
  border-color: #1d4ed8;
  color: #ffffff;
}

.game-panel {
  display: none;
  margin-top: 0.8rem;
  gap: 0.75rem;
}

.game-panel.active {
  display: block;
}

.game-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
  margin-bottom: 0.8rem;
}

.board-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
}

.mini-panel {
  border: 1px solid #dce6f8;
  border-radius: 10px;
  padding: 0.6rem;
  background: #fbfdff;
}

.single-panel {
  border: 1px solid #dce6f8;
  border-radius: 10px;
  padding: 0.5rem;
  background: #fbfdff;
  text-align: center;
}

.game-canvas {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid #c4d4ea;
  background: #ffffff;
}

.tetris-canvas {
  background: #0b1220;
}

.marble-canvas {
  background: #f6f8fb;
}

.hint {
  color: var(--muted);
  font-size: 0.9rem;
}

.mini-panel h3,
.single-panel h3 {
  margin: 0 0 0.35rem;
  font-size: 0.95rem;
}

.interest-row {
  display: flex;
  gap: 0.6rem;
  align-items: center;
  flex-wrap: wrap;
}

label {
  font-size: 0.9rem;
  color: var(--muted);
}

input {
  border-radius: 12px;
  border: 1px solid #cfd9ee;
  padding: 0.5rem 0.7rem;
  min-width: min(300px, 72vw);
  background: #f8faff;
}

.grid {
  margin-top: 0.8rem;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 0.7rem;
}

.card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.85rem;
  background: #fbfdff;
  display: grid;
  gap: 0.45rem;
}

.card-head {
  display: flex;
  justify-content: space-between;
  gap: 0.7rem;
  align-items: center;
}

.card-title {
  margin: 0;
  font-size: 1rem;
  line-height: 1.3;
}

.badge,
.score {
  font-weight: 700;
  color: #111827;
  background: #ecfdf5;
  border: 1px solid #d1fae5;
  border-radius: 999px;
  padding: 0.2rem 0.55rem;
  font-size: 0.82rem;
}

.meta {
  color: var(--muted);
  font-size: 0.88rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.card-text {
  margin: 0;
}

.cta {
  color: #1d4ed8;
  text-decoration: none;
  font-weight: 700;
}

.why {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.rec {
  background: linear-gradient(180deg, #fffbeb, #ffffff 65%);
}

@media (max-width: 680px) {
  .hero {
    border-radius: 12px;
    padding: 1.1rem;
  }
  .toolbar {
    align-items: start;
  }
  .board-row {
    grid-template-columns: 1fr;
  }
}