:root {
  --bg-0: #07071a;
  --bg-1: #0d0b2b;
  --ink: #f3f1ff;
  --ink-dim: #a8a5d4;
  --line: rgba(255,255,255,0.08);
  --panel: rgba(255,255,255,0.04);
  --panel-2: rgba(255,255,255,0.07);
  --neon-1: #7c5cff;
  --neon-2: #22d3ee;
  --neon-3: #ff5db1;
  --neon-4: #ffd166;
  --good: #4ade80;
  --bad: #ff6464;
  --shadow: 0 10px 40px rgba(0,0,0,0.45);
  --radius: 18px;
  --radius-sm: 12px;
  --font-kr: "Gaegu", "Black Han Sans", system-ui, sans-serif;
  --font-en: "Inter", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  background: var(--bg-0);
  color: var(--ink);
  font-family: var(--font-en);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  overflow-x: hidden;
}

button { font-family: inherit; cursor: pointer; }
input, select { font-family: inherit; }

/* ============ Backgrounds ============ */
.bg-stars {
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background:
    radial-gradient(1px 1px at 12% 30%, #fff5 50%, transparent 51%),
    radial-gradient(1px 1px at 78% 15%, #fff4 50%, transparent 51%),
    radial-gradient(1px 1px at 42% 70%, #fff3 50%, transparent 51%),
    radial-gradient(1px 1px at 90% 80%, #fff5 50%, transparent 51%),
    radial-gradient(1px 1px at 60% 40%, #fff4 50%, transparent 51%),
    radial-gradient(1px 1px at 25% 55%, #fff3 50%, transparent 51%),
    radial-gradient(2px 2px at 8% 85%, #fff6 50%, transparent 51%),
    radial-gradient(2px 2px at 88% 50%, #fff6 50%, transparent 51%),
    linear-gradient(180deg, var(--bg-0), var(--bg-1) 60%, #100833);
  animation: drift 80s linear infinite;
}
@keyframes drift {
  0% { background-position: 0 0, 0 0, 0 0, 0 0, 0 0, 0 0, 0 0, 0 0, 0 0; }
  100% { background-position: -200px 100px, 100px -50px, -50px 80px, 80px -100px, -120px 60px, 60px -40px, 200px 0, -100px 100px, 0 0; }
}
.bg-glow {
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background:
    radial-gradient(60vmax 40vmax at 15% 10%, rgba(124,92,255,0.18), transparent 60%),
    radial-gradient(50vmax 40vmax at 85% 90%, rgba(34,211,238,0.14), transparent 60%),
    radial-gradient(40vmax 30vmax at 60% 50%, rgba(255,93,177,0.10), transparent 60%);
}

/* ============ Topbar ============ */
.topbar {
  position: relative; z-index: 5;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 28px;
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}
.brand {
  display: flex; align-items: center; gap: 10px;
  cursor: pointer; user-select: none;
}
.logo-dot {
  width: 14px; height: 14px; border-radius: 50%;
  background: conic-gradient(from 0deg, var(--neon-1), var(--neon-2), var(--neon-3), var(--neon-4), var(--neon-1));
  box-shadow: 0 0 18px var(--neon-1);
  animation: spin 6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.logo-text { font-weight: 800; letter-spacing: 0.5px; }
.logo-text em { font-style: italic; color: var(--neon-2); }

.topbar-right { display: flex; gap: 10px; align-items: center; }
.ghost-btn {
  background: var(--panel); color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 999px; padding: 8px 14px;
  font-size: 13px; font-weight: 600;
  transition: 0.2s;
}
.ghost-btn:hover { background: var(--panel-2); border-color: rgba(255,255,255,0.18); }
.score-pill {
  background: linear-gradient(135deg, rgba(255,209,102,0.15), rgba(255,93,177,0.15));
  border: 1px solid rgba(255,209,102,0.3);
  border-radius: 999px; padding: 6px 14px;
  font-size: 13px; font-weight: 700; color: var(--neon-4);
}

/* ============ App / Views ============ */
#app { position: relative; z-index: 1; padding: 24px 28px 60px; }
.view { display: none; max-width: 1200px; margin: 0 auto; animation: fadeIn 0.4s ease; }
.view.active { display: block; }
.view.slide-in-right { animation: slideInRight 0.42s cubic-bezier(.2,.8,.2,1); }
.view.slide-in-left  { animation: slideInLeft  0.42s cubic-bezier(.2,.8,.2,1); }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
@keyframes slideInRight {
  from { opacity: 0; transform: translateX(48px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-48px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ============ HOME ============ */
.hero { text-align: center; padding: 60px 0 30px; }
.hero-title {
  font-size: clamp(48px, 9vw, 96px);
  line-height: 1;
  margin: 0 0 14px;
  font-weight: 800;
}
.hero-title .kr {
  display: block;
  font-family: var(--font-kr);
  font-size: 0.45em;
  color: var(--ink-dim);
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}
.hero-title .en em {
  font-style: italic;
  background: linear-gradient(90deg, var(--neon-1), var(--neon-2), var(--neon-3));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub { color: var(--ink-dim); font-size: 16px; margin: 0; }
.hero-sub b { color: var(--ink); }

.mode-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 40px;
}
.mode-card {
  position: relative;
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.01));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px 24px;
  text-align: left;
  color: var(--ink);
  transition: 0.3s cubic-bezier(.2,.8,.2,1);
  overflow: hidden;
  cursor: pointer;
}
.mode-card::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(80% 60% at 100% 0%, var(--card-glow, var(--neon-1)) 0%, transparent 60%);
  opacity: 0.2; transition: 0.4s;
  pointer-events: none;
}
.mode-card:hover { transform: translateY(-4px); border-color: rgba(255,255,255,0.2); box-shadow: var(--shadow); }
.mode-card:hover::before { opacity: 0.45; }
.mode-builder { --card-glow: var(--neon-1); }
.mode-hunter  { --card-glow: var(--neon-2); }
.mode-guess   { --card-glow: var(--neon-3); }
.mode-chain   { --card-glow: #5eead4; }

.mode-icon { font-size: 28px; margin-bottom: 14px; color: var(--card-glow); text-shadow: 0 0 20px var(--card-glow); }
.mode-title { font-weight: 800; letter-spacing: 0.1em; font-size: 14px; color: var(--ink-dim); }
.mode-kr { font-family: var(--font-kr); font-size: 28px; font-weight: 700; margin: 4px 0 12px; }
.mode-desc { font-size: 14px; color: var(--ink-dim); line-height: 1.6; }
.mode-tag {
  display: inline-block; margin-top: 16px;
  font-size: 11px; font-weight: 700;
  padding: 4px 10px; border-radius: 999px;
  background: rgba(255,255,255,0.06); border: 1px solid var(--line);
  color: var(--ink-dim); letter-spacing: 0.06em;
}

.ticker {
  margin-top: 50px; padding: 14px 20px;
  border-top: 1px dashed var(--line);
  border-bottom: 1px dashed var(--line);
  display: flex; gap: 30px; flex-wrap: wrap;
  font-size: 12px; color: var(--ink-dim);
}

/* ============ Game Head ============ */
.game-head {
  display: flex; align-items: center; gap: 16px;
  padding: 14px 0 22px;
  flex-wrap: wrap;
}
.game-head h2 {
  margin: 0; font-size: 20px; font-weight: 800;
  letter-spacing: 0.08em;
  flex: 1;
}
.back-btn {
  background: transparent; color: var(--ink-dim);
  border: 1px solid var(--line); border-radius: 999px;
  padding: 8px 14px; font-size: 13px; font-weight: 600;
  transition: 0.2s;
}
.back-btn:hover { color: var(--ink); border-color: rgba(255,255,255,0.2); }
.game-tools { display: flex; gap: 10px; align-items: center; }

.select-pill {
  background: var(--panel); color: var(--ink);
  border: 1px solid var(--line); border-radius: 999px;
  padding: 7px 14px; font-size: 13px; font-weight: 600;
  outline: none;
}
.select-pill option { background: var(--bg-1); }
.hud {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 10px; padding: 6px 14px;
  font-variant-numeric: tabular-nums;
  font-weight: 800; font-size: 16px;
  min-width: 60px; text-align: center;
}
.hud.accent { color: var(--neon-4); border-color: rgba(255,209,102,0.3); background: rgba(255,209,102,0.06); }

/* ============ BUILDER ============ */
.builder-input-row {
  display: flex; gap: 10px; margin-bottom: 16px;
}
#builderInput {
  flex: 1;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  color: var(--ink); font-size: 16px;
  outline: none;
  transition: 0.2s;
}
#builderInput:focus { border-color: var(--neon-1); box-shadow: 0 0 0 3px rgba(124,92,255,0.2); }
.primary-btn {
  position: relative;
  background: linear-gradient(135deg, var(--neon-1), var(--neon-3));
  color: white; border: none;
  border-radius: var(--radius-sm);
  padding: 0 24px; font-weight: 800;
  font-size: 14px; letter-spacing: 0.04em;
  transition: 0.2s;
  box-shadow: 0 6px 24px rgba(124,92,255,0.4);
  overflow: hidden;
}
.primary-btn:hover { transform: translateY(-1px); box-shadow: 0 10px 30px rgba(124,92,255,0.5); }
.primary-btn:active { transform: translateY(0); }

/* Ripple effect for primary & ghost buttons */
.primary-btn::after,
.ghost-btn::after,
.back-btn::after {
  content: "";
  position: absolute;
  left: var(--rx, 50%);
  top:  var(--ry, 50%);
  width: 8px; height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.55);
  transform: translate(-50%, -50%) scale(0);
  opacity: 0;
  pointer-events: none;
}
.ghost-btn, .back-btn { position: relative; overflow: hidden; }
.primary-btn.rippling::after,
.ghost-btn.rippling::after,
.back-btn.rippling::after {
  animation: ripple 0.55s cubic-bezier(.2,.7,.3,1);
}
@keyframes ripple {
  0%   { transform: translate(-50%, -50%) scale(0);  opacity: 0.55; }
  100% { transform: translate(-50%, -50%) scale(32); opacity: 0; }
}

.canvas-wrap {
  position: relative;
  width: 100%;
  height: 540px;
  background: radial-gradient(ellipse at center, rgba(124,92,255,0.06), rgba(0,0,0,0.2));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.canvas-wrap.small { height: 320px; }
#cloudCanvas, #hunterCanvas, #guessCanvas {
  display: block; width: 100%; height: 100%;
  cursor: pointer;
}
.canvas-empty {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  color: var(--ink-dim); pointer-events: none;
  gap: 6px;
}
.canvas-empty.hidden { display: none; }
.empty-glyph { font-size: 48px; color: var(--neon-1); opacity: 0.4; }
.empty-tip { font-size: 13px; opacity: 0.7; }

.builder-foot {
  display: flex; justify-content: space-between;
  padding: 12px 4px;
  font-size: 13px; color: var(--ink-dim);
}
.hint { opacity: 0.7; }

/* ============ HUNTER ============ */
.hunter-target {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 22px; margin-bottom: 14px;
  background: linear-gradient(90deg, rgba(34,211,238,0.1), rgba(34,211,238,0.0));
  border: 1px solid rgba(34,211,238,0.3);
  border-radius: var(--radius-sm);
}
.tgt-label {
  font-size: 11px; font-weight: 800; letter-spacing: 0.15em;
  color: var(--neon-2); text-transform: uppercase;
  padding: 4px 10px; border: 1px solid var(--neon-2); border-radius: 999px;
}
.tgt-word {
  font-size: 28px; font-weight: 800;
  color: var(--ink);
  font-family: var(--font-kr);
  text-shadow: 0 0 20px rgba(34,211,238,0.4);
}

.overlay {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: rgba(7,7,26,0.78);
  backdrop-filter: blur(8px);
  animation: fadeIn 0.3s;
}
.overlay.hidden { display: none; }
.overlay-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px 40px;
  text-align: center;
  max-width: 460px;
  box-shadow: var(--shadow);
}
.overlay-card h3 { margin: 0 0 12px; font-size: 28px; }
.overlay-card p { color: var(--ink-dim); line-height: 1.6; }
.overlay-actions { display: flex; gap: 10px; justify-content: center; margin-top: 22px; }
.overlay-actions .primary-btn { padding: 12px 24px; }

/* ============ CHAIN ============ */
.chain-target {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 22px; margin-bottom: 14px;
  background: linear-gradient(90deg, rgba(94,234,212,0.12), rgba(94,234,212,0.0));
  border: 1px solid rgba(94,234,212,0.35);
  border-radius: var(--radius-sm);
}
.chain-label {
  color: #5eead4 !important;
  border-color: #5eead4 !important;
}
.chain-letter {
  color: #5eead4;
  text-shadow: 0 0 20px rgba(94,234,212,0.5);
}
.chain-hud {
  color: #5eead4 !important;
  border-color: rgba(94,234,212,0.4) !important;
  background: rgba(94,234,212,0.08) !important;
  transition: 0.2s;
}
.chain-hud.boost { transform: scale(1.15); box-shadow: 0 0 16px rgba(94,234,212,0.7); }
#chainInput {
  flex: 1;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  color: var(--ink); font-size: 16px;
  outline: none;
  transition: 0.2s;
}
#chainInput:focus { border-color: #5eead4; box-shadow: 0 0 0 3px rgba(94,234,212,0.18); }

/* ============ HUNTER combo flash ============ */
.combo-flash::after {
  content: ""; position: absolute; inset: 0;
  pointer-events: none;
  border-radius: var(--radius);
  box-shadow:
    inset 0 0 60px 12px rgba(255,215,102,0.55),
    inset 0 0 120px 24px rgba(255,93,177,0.35);
  animation: comboflash 1.6s ease-out;
}
@keyframes comboflash {
  0%   { opacity: 0; }
  20%  { opacity: 1; }
  100% { opacity: 0; }
}
.hud.boost {
  color: var(--neon-4) !important;
  background: rgba(255,209,102,0.18) !important;
  border-color: var(--neon-4) !important;
  box-shadow: 0 0 18px rgba(255,209,102,0.5);
  animation: hudpulse 0.8s ease-in-out infinite;
}
@keyframes hudpulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.08); }
}
.hud.flash-bad {
  color: var(--bad) !important;
  border-color: var(--bad) !important;
  background: rgba(255,100,100,0.15) !important;
  transition: none;
}

/* ============ DETECTIVE ============ */
.guess-hint {
  text-align: center;
  margin: 22px 0 14px;
  font-size: 18px;
  color: var(--ink-dim);
  font-family: var(--font-kr);
}
.guess-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}
.guess-opt {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 18px 16px;
  color: var(--ink);
  font-size: 16px; font-weight: 700;
  text-align: center;
  transition: 0.2s;
}
.guess-opt:hover:not(:disabled) {
  background: var(--panel-2);
  border-color: var(--neon-3);
  transform: translateY(-2px);
}
.guess-opt.correct {
  background: rgba(74,222,128,0.15);
  border-color: var(--good);
  color: var(--good);
}
.guess-opt.wrong {
  background: rgba(255,100,100,0.12);
  border-color: var(--bad);
  color: var(--bad);
  opacity: 0.7;
}
.guess-opt:disabled { cursor: not-allowed; }
.guess-foot {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 13px; color: var(--ink-dim);
}

/* ============ MODAL ============ */
.modal-bg {
  position: fixed; inset: 0; z-index: 50;
  background: rgba(7,7,26,0.85);
  backdrop-filter: blur(10px);
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
  animation: fadeIn 0.2s;
}
.modal-bg.hidden { display: none; }
.modal {
  position: relative;
  background: linear-gradient(180deg, #15123a, #0c0a25);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px 36px;
  max-width: 720px; width: 100%;
  box-shadow: var(--shadow);
}
.modal h3 { margin: 0 0 20px; font-size: 22px; }
.modal-x {
  position: absolute; top: 14px; right: 14px;
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--panel); border: 1px solid var(--line);
  color: var(--ink); font-size: 20px;
}
.howto-grid {
  display: grid; gap: 18px;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}
.howto-grid h4 { margin: 0 0 8px; color: var(--neon-2); font-size: 15px; }
.howto-grid p { margin: 0; color: var(--ink-dim); font-size: 14px; line-height: 1.6; }
.howto-tip {
  margin-top: 22px; padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 12px; color: var(--ink-dim); text-align: center;
}

/* ============ TOAST ============ */
.toast {
  position: fixed; bottom: 30px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: rgba(15,12,40,0.95);
  border: 1px solid var(--line);
  color: var(--ink);
  padding: 12px 22px;
  border-radius: 999px;
  font-size: 14px; font-weight: 600;
  opacity: 0; pointer-events: none;
  transition: 0.3s cubic-bezier(.2,.8,.2,1);
  z-index: 100;
  box-shadow: var(--shadow);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.good { border-color: var(--good); color: var(--good); }
.toast.bad { border-color: var(--bad); color: var(--bad); }

/* ============ Animations ============ */
@keyframes pop {
  0% { transform: scale(0.6); opacity: 0; }
  60% { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(1); opacity: 1; }
}
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  75% { transform: translateX(6px); }
}
.shake { animation: shake 0.3s; }

/* ============ Responsive ============ */
@media (max-width: 720px) {
  .topbar { padding: 14px 18px; }
  #app { padding: 18px; }
  .hero { padding: 30px 0 20px; }
  .canvas-wrap { height: 420px; }
  .canvas-wrap.small { height: 240px; }
  .game-head h2 { font-size: 16px; flex-basis: 100%; order: -1; }
  .tgt-word { font-size: 22px; }
  .builder-input-row { flex-direction: column; }
  .primary-btn { padding: 12px 24px; }
}