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

:root {
  --bg: #fafafa;
  --canvas: #ffffff;
  --ink: #171717;
  --body: #4d4d4d;
  --mute: #888888;
  --hairline: #ebebeb;
  --hairline-strong: #a1a1a1;
  --primary: #0070f3;
  --primary-deep: #0761d1;
  --primary-soft: #d3e5ff;
  --success: #00b894;
  --warning: #f5a623;
  --error: #ee0000;
  --violet: #7928ca;
  --cyan: #50e3c2;
  --pink: #ff0080;
  --selection-bg: #171717;
  --selection-fg: #f2f2f2;
  --gradient-1-start: #007cf0;
  --gradient-1-end: #00dfd8;
  --gradient-2-start: #7928ca;
  --gradient-2-end: #ff0080;
  --gradient-3-start: #ff4d4d;
  --gradient-3-end: #f9cb28;

  /* Game colors */
  --game-wh: #0070f3;
  --game-mc: #00b894;
  --game-ws: #7928ca;
  --game-an: #f5a623;
  --game-wl: #ff0080;
  /* Wordle tiles */
  --tile-correct: #00b894;
  --tile-present: #f5a623;
  --tile-absent: #a1a1a1;
  --tile-border: #d4d4d4;
  --tile-active: #171717;
  /* Keyboard */
  --kb-bg: #e8e8e8;
  --kb-hover: #d4d4d4;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Inter, Roboto, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--selection-bg); color: var(--selection-fg); }

.container { max-width: 900px; margin: 0 auto; padding: 0 24px; }

/* === Header === */
.header {
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--hairline);
  position: sticky; top: 0; z-index: 100;
}
.header .container {
  display: flex; align-items: center; justify-content: space-between;
  height: 56px;
}
.logo {
  font-size: 1.25rem; font-weight: 700; text-decoration: none; color: var(--ink);
  display: flex; align-items: center; gap: 10px; letter-spacing: -0.5px;
}
.logo-icon {
  width: 28px; height: 28px; border-radius: 6px;
  background: linear-gradient(135deg, var(--gradient-1-start), var(--gradient-2-end));
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 800; color: #fff; flex-shrink: 0;
}
.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  text-decoration: none; color: var(--mute); font-size: 0.875rem; font-weight: 500;
  padding: 6px 12px; border-radius: 6px; transition: all .15s;
}
.nav a:hover, .nav a.active { color: var(--ink); background: #f0f0f0; }

/* === Hero === */
.hero {
  text-align: center; padding: 80px 0 60px;
  background: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 50%, #16213e 100%);
  color: #fff; position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
  background: radial-gradient(ellipse at 30% 50%, rgba(0,112,243,0.15) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 50%, rgba(121,40,202,0.12) 0%, transparent 60%);
  pointer-events: none;
}
.hero h1 {
  font-size: 3.2rem; font-weight: 700; margin-bottom: 12px;
  letter-spacing: -1.5px; line-height: 1.15; position: relative;
}
.hero .subtitle {
  font-size: 1.15rem; color: rgba(255,255,255,0.65);
  margin-bottom: 32px; max-width: 500px; margin-left: auto; margin-right: auto;
  line-height: 1.5; position: relative;
}
.hero .btn-group { display: flex; gap: 12px; justify-content: center; position: relative; }
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px; background: #fff; color: var(--ink);
  border-radius: 8px; text-decoration: none; font-weight: 600; font-size: 0.95rem;
  transition: all .2s; border: none; cursor: pointer;
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(0,0,0,0.2); }
.btn-ghost {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px; background: rgba(255,255,255,0.1); color: #fff;
  border-radius: 8px; text-decoration: none; font-weight: 500; font-size: 0.95rem;
  border: 1px solid rgba(255,255,255,0.15); transition: all .2s;
}
.btn-ghost:hover { background: rgba(255,255,255,0.15); }

/* === Stats === */
.stats-bar {
  display: flex; justify-content: center; gap: 48px; padding: 24px 0;
  border-bottom: 1px solid var(--hairline); background: var(--canvas);
}
.stat-item { text-align: center; }
.stat-num { font-size: 1.5rem; font-weight: 700; color: var(--ink); }
.stat-label { font-size: 0.8rem; color: var(--mute); margin-top: 2px; }

/* === Sections === */
section { padding: 64px 0; }
section:nth-child(even) { background: var(--canvas); }
.section-header {
  text-align: center; margin-bottom: 40px;
}
.section-header h2 {
  font-size: 1.75rem; font-weight: 700; letter-spacing: -0.5px;
  margin-bottom: 8px;
}
.section-header p { color: #666; font-size: 0.95rem; max-width: 400px; margin: 0 auto; }

/* === Game Grid === */
.game-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}
.game-card {
  background: var(--canvas); border-radius: 12px; padding: 28px 20px;
  text-align: center; text-decoration: none; color: var(--ink);
  border: 1px solid var(--hairline); transition: all .2s;
  position: relative; overflow: hidden;
}
.game-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.08);
  border-color: var(--hairline-strong);
}
.game-card::after {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  border-radius: 12px 12px 0 0;
}
.game-card.wh::after { background: var(--game-wh); }
.game-card.mc::after { background: var(--game-mc); }
.game-card.ws::after { background: var(--game-ws); }
.game-card.an::after { background: var(--game-an); }
.game-card.wl::after { background: var(--game-wl); }

.game-icon {
  width: 48px; height: 48px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px; font-weight: 800; font-size: 1.1rem; color: #fff;
}
.wh { background: var(--game-wh); }
.mc { background: var(--game-mc); }
.ws { background: var(--game-ws); }
.an { background: #e67e22; }
.wl { background: var(--game-wl); }
.game-card h3 { font-size: 1rem; font-weight: 600; margin-bottom: 6px; }
.game-card p { font-size: 0.85rem; color: #555; line-height: 1.4; }

/* === Featured Game === */
.featured-game { background: var(--canvas); }
.game-container {
  max-width: 500px; margin: 0 auto;
  border: 1px solid var(--hairline); border-radius: 12px; padding: 24px;
  background: var(--canvas);
}

#game-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 16px; gap: 10px;
}
#game-header h3 { font-size: 1rem; font-weight: 600; }

/* Wordle Board */
#board { display: grid; grid-template-rows: repeat(6, 1fr); gap: 5px; max-width: 350px; margin: 0 auto 20px; }
#board-6 { display: grid; grid-template-rows: repeat(6, 1fr); gap: 5px; max-width: 400px; margin: 0 auto 20px; }
.row { display: grid; grid-template-columns: repeat(5, 1fr); gap: 5px; }
.row-6 { display: grid; grid-template-columns: repeat(6, 1fr); gap: 4px; }
.tile {
  aspect-ratio: 1; display: flex; align-items: center; justify-content: center;
  font-size: 2rem; font-weight: 700; text-transform: uppercase;
  border: 2px solid var(--tile-border); border-radius: 4px;
  transition: all .2s; color: var(--ink);
}
.tile.correct { background: var(--tile-correct); color: #fff; border-color: var(--tile-correct); }
.tile.present { background: var(--tile-present); color: #fff; border-color: var(--tile-present); }
.tile.absent { background: var(--tile-absent); color: #fff; border-color: var(--tile-absent); }
.tile.warm { background: #e17055; color: #fff; border-color: #e17055; }
.tile.close { background: #a0a4a8; color: #fff; border-color: #a0a4a8; }
.tile.far { background: var(--tile-border); color: var(--mute); border-color: var(--tile-border); }
.tile.active { border-color: var(--tile-active); }

/* Keyboard */
#keyboard { max-width: 500px; margin: 0 auto; }
.kb-row { display: flex; justify-content: center; gap: 4px; margin-bottom: 4px; }
.kb-key {
  padding: 12px 8px; min-width: 28px; font-size: 0.8rem; font-weight: 600;
  background: var(--kb-bg); border: none; border-radius: 4px; cursor: pointer;
  text-transform: uppercase; transition: background .15s; color: var(--ink);
}
.kb-key:hover { background: var(--kb-hover); }
.kb-key.wide { min-width: 50px; font-size: 0.7rem; }
.kb-key.correct { background: var(--tile-correct); color: #fff; }
.kb-key.present { background: var(--tile-present); color: #fff; }
.kb-key.warm { background: #e17055; color: #fff; }
.kb-key.absent { background: var(--tile-absent); color: #fff; }

#message { text-align: center; margin-top: 15px; font-weight: 600; min-height: 30px; font-size: 0.9rem; }
#message.win { color: var(--tile-correct); }
#message.lose { color: #e17055; }

.btn-small {
  padding: 6px 16px; background: var(--primary); color: #fff;
  border: none; border-radius: 6px; cursor: pointer; font-size: 0.85rem; font-weight: 500;
}
.btn-small:hover { background: var(--primary-deep); }
.btn-hint {
  padding: 6px 16px; background: var(--warning); color: var(--ink);
  border: none; border-radius: 6px; cursor: pointer; font-size: 0.85rem; font-weight: 600;
}
.btn-hint:hover { opacity: 0.9; }

/* Crossword */
.crossword-cell {
  aspect-ratio: 1; position: relative; display: flex; align-items: center; justify-content: center;
  background: #fff; border: 1px solid var(--tile-border); border-radius: 3px;
}
.crossword-cell.black { background: var(--ink); border-color: var(--ink); }
.cell-num {
  position: absolute; top: 2px; left: 3px; font-size: 0.65rem; font-weight: 600; color: var(--mute);
}
.cell-input {
  width: 100%; height: 100%; border: none; text-align: center;
  font-size: 1.3rem; font-weight: 700; text-transform: uppercase;
  background: transparent; outline: none;
}
.cell-input:focus { background: var(--primary-soft); }

/* Confetti */
@keyframes confettiFall {
  0% { transform: translateY(0) rotate(0deg); opacity: 1; }
  100% { transform: translateY(100vh) rotate(720deg); opacity: 0; }
}

/* Content */
.content { background: var(--canvas); border-top: 1px solid var(--hairline); }
.content article h3 { font-size: 1.25rem; font-weight: 600; margin: 28px 0 10px; }
.content article p { margin-bottom: 16px; color: var(--body); line-height: 1.8; }
.content article ul { margin: 10px 0 24px 20px; }
.content article ul li { margin-bottom: 8px; color: var(--body); }
.content article a { color: var(--primary); text-decoration: none; }
.content article a:hover { text-decoration: underline; }

/* Name Overlay */
.name-overlay {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5); display: none; align-items: center; justify-content: center;
  z-index: 1000; backdrop-filter: blur(4px);
}
.name-modal {
  background: #fff; border-radius: 12px; padding: 32px; max-width: 360px; width: 90%;
  text-align: center; box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}
.name-modal h2 { font-size: 1.5rem; font-weight: 700; margin-bottom: 8px; }
.name-modal p { color: var(--mute); font-size: 0.9rem; margin-bottom: 20px; }
.name-modal input {
  width: 100%; padding: 10px 14px; font-size: 1rem; border: 1.5px solid var(--hairline-strong);
  border-radius: 8px; text-align: center; margin-bottom: 12px; outline: none;
}
.name-modal input:focus { border-color: var(--primary); }
.name-modal .btn-primary { width: 100%; justify-content: center; }

/* Game Layout */
.game-layout { display: flex; gap: 24px; align-items: flex-start; }
.game-main { flex: 1; min-width: 0; }
.game-sidebar { width: 280px; flex-shrink: 0; }
.game-section-title { font-size: 1.5rem; font-weight: 700; margin-bottom: 20px; letter-spacing: -0.3px; }
.sidebar-box {
  background: var(--canvas); border: 1px solid var(--hairline); border-radius: 10px; padding: 16px;
}
.game-sidebar .sidebar-box:first-child { margin-top: 48px; }
.sidebar-box h3 { font-size: 0.9rem; font-weight: 600; margin-bottom: 12px; text-align: center; }

/* Leaderboard */
.lb-empty { text-align: center; color: var(--mute); font-size: 0.85rem; padding: 20px 0; }
.lb-row { display: flex; align-items: center; padding: 6px 0; border-bottom: 1px solid #f5f5f5; font-size: 0.85rem; }
.lb-row:last-child { border-bottom: none; }
.lb-rank { width: 30px; font-weight: 600; }
.lb-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lb-score { font-weight: 600; color: var(--primary); }

/* Footer */
.footer {
  background: #0a0a0a; color: #888; padding: 40px 0;
  border-top: 1px solid #1a1a1a;
}
.footer .container { display: flex; justify-content: space-between; align-items: center; }
.footer-logo { font-weight: 700; color: #fff; font-size: 1rem; }
.footer nav a { color: #666; text-decoration: none; margin-left: 20px; font-size: 0.85rem; }
.footer nav a:hover { color: #fff; }

/* Responsive */
@media (max-width: 768px) {
  .game-layout { flex-direction: column; }
  .game-sidebar { width: 100%; }
  .game-sidebar .sidebar-box:first-child { margin-top: 0; }
  .game-container { padding: 16px; }
  .name-modal { padding: 24px 20px; }
  .hero { padding: 56px 0 40px; }
  .hero h1 { font-size: 2rem; }
  .stats-bar { gap: 24px; }
}

@media (max-width: 600px) {
  .container { padding: 0 16px; }
  .hero { padding: 48px 0 36px; }
  .hero h1 { font-size: 1.6rem; }
  .hero .subtitle { font-size: 0.95rem; margin-bottom: 24px; }
  .btn-primary, .btn-ghost { padding: 10px 20px; font-size: 0.9rem; }
  .hero .btn-group { flex-direction: column; align-items: center; }

  section { padding: 40px 0; }
  .section-header { margin-bottom: 28px; }
  .section-header h2 { font-size: 1.3rem; }

  .game-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .game-card { padding: 20px 12px; }
  .game-card h3 { font-size: 0.9rem; }
  .game-icon { width: 40px; height: 40px; font-size: 0.9rem; margin-bottom: 12px; }

  .stats-bar { gap: 16px; padding: 16px 0; }
  .stat-num { font-size: 1.2rem; }
  .stat-label { font-size: 0.75rem; }

  .game-layout { gap: 16px; }
  .tile { font-size: 1.3rem; border-width: 1.5px; }
  #board { max-width: 280px; gap: 4px; }
  #board-6 { max-width: 320px; gap: 4px; }
  .row { gap: 4px; }
  .row-6 { gap: 3px; }
  .kb-key { padding: 10px 4px; min-width: 24px; font-size: 0.75rem; }
  .kb-key.wide { min-width: 40px; font-size: 0.65rem; }
  .kb-row { gap: 3px; }

  #game-header { flex-direction: column; gap: 8px; }

  .footer .container { flex-direction: column; gap: 12px; }
  .footer nav a { margin: 0 10px; font-size: 0.8rem; }
}

@media (max-width: 380px) {
  .hero h1 { font-size: 1.3rem; }
  .tile { font-size: 1.1rem; }
  #board { max-width: 240px; }
  .kb-key { padding: 8px 2px; min-width: 20px; font-size: 0.7rem; }
  .kb-key.wide { min-width: 34px; }
  .game-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
}