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

:root {
  --bg: #070710;
  --bg2: #0e0e1c;
  --bg3: #15152a;
  --card: rgba(255,255,255,0.04);
  --card-border: rgba(255,255,255,0.08);
  --card-border-hover: rgba(255,255,255,0.16);
  --text: #f0f0f8;
  --text2: #8888aa;
  --text3: #44445a;

  /* ball colors */
  --cy: #ffd234; --cy-dark: #7a5a00;
  --cb: #4db8ff; --cb-dark: #003d6b;
  --cr: #ff5c5c; --cr-dark: #6b0000;
  --cg: #888; --cg-dark: #222;
  --cgr: #4dffaa; --cgr-dark: #004422;
  --cp: #cc88ff; --cp-dark: #330055;

  --gold: #ffd234;
  --gold2: #ffaa00;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Noto Sans KR', sans-serif;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── BACKGROUND CANVAS ── */
#bgCanvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* ── HEADER ── */
.site-header {
  position: relative;
  text-align: center;
  padding: 4rem 1rem 3rem;
  z-index: 1;
  overflow: hidden;
}

.header-glow {
  position: absolute;
  top: -60px; left: 50%;
  transform: translateX(-50%);
  width: 500px; height: 300px;
  background: radial-gradient(ellipse, rgba(255,210,52,0.12) 0%, transparent 70%);
  pointer-events: none;
}

.header-inner { position: relative; z-index: 1; }

.logo {
  display: inline-flex;
  align-items: baseline;
  gap: 0;
  margin-bottom: 0.75rem;
}

.logo-l {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(4rem, 12vw, 7rem);
  color: var(--gold);
  line-height: 1;
  text-shadow: 0 0 40px rgba(255,210,52,0.5), 0 0 80px rgba(255,210,52,0.2);
  animation: pulseLogo 3s ease-in-out infinite;
}

.logo-otto {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(4rem, 12vw, 7rem);
  color: var(--text);
  line-height: 1;
}

.logo-tag {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--gold);
  background: rgba(255,210,52,0.12);
  border: 1px solid rgba(255,210,52,0.3);
  border-radius: 4px;
  padding: 2px 7px;
  margin-left: 10px;
  margin-bottom: 12px;
  align-self: flex-end;
}

.header-desc {
  font-size: 14px;
  color: var(--text2);
  letter-spacing: 0.05em;
}

@keyframes pulseLogo {
  0%, 100% { text-shadow: 0 0 40px rgba(255,210,52,0.5), 0 0 80px rgba(255,210,52,0.2); }
  50% { text-shadow: 0 0 60px rgba(255,210,52,0.8), 0 0 100px rgba(255,210,52,0.35); }
}

/* ── MAIN ── */
.main {
  max-width: 700px;
  margin: 0 auto;
  padding: 0 1rem 5rem;
  position: relative;
  z-index: 1;
}

/* ── LEGEND ── */
.legend-wrap {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text2);
}

/* ── BALLS ── */
.ball-mini {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px; height: 30px;
  border-radius: 50%;
  font-size: 11px;
  font-weight: 700;
  flex-shrink: 0;
}

.ball {
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-weight: 700;
  flex-shrink: 0;
  position: relative;
  cursor: default;
  transition: transform 0.2s ease;
}

.ball-lg {
  width: 46px; height: 46px;
  font-size: 16px;
}

.ball-lg::after {
  content: '';
  position: absolute;
  top: 4px; left: 50%;
  transform: translateX(-50%);
  width: 50%; height: 30%;
  background: rgba(255,255,255,0.25);
  border-radius: 50%;
  pointer-events: none;
}

.ball:hover { transform: scale(1.12) translateY(-2px); }

.yellow, .b-yellow { background: var(--cy); color: var(--cy-dark); }
.blue,   .b-blue   { background: var(--cb); color: var(--cb-dark); }
.red,    .b-red    { background: var(--cr); color: var(--cr-dark); }
.gray,   .b-gray   { background: var(--cg); color: var(--cg-dark); }
.green,  .b-green  { background: var(--cgr); color: var(--cgr-dark); }
.bonus,  .b-bonus  {
  background: var(--cp);
  color: var(--cp-dark);
  box-shadow: 0 0 0 2px rgba(204,136,255,0.4);
}

.ball.matched {
  animation: matchPulse 0.6s ease forwards;
  box-shadow: 0 0 0 3px white, 0 0 16px rgba(255,255,255,0.5);
}

@keyframes matchPulse {
  0%   { transform: scale(1); }
  40%  { transform: scale(1.25); }
  70%  { transform: scale(0.95); }
  100% { transform: scale(1.1); }
}

/* ── SET CARDS ── */
.sets-wrap {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 2rem;
}

.set-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 12px;
  opacity: 0;
  transform: translateX(-24px);
  transition:
    opacity 0.4s ease,
    transform 0.4s ease,
    border-color 0.2s ease,
    background 0.2s ease;
  position: relative;
  overflow: hidden;
}

.set-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: linear-gradient(to bottom, var(--gold), var(--gold2));
  border-radius: 3px 0 0 3px;
  opacity: 0;
  transition: opacity 0.3s;
}

.set-card.visible { opacity: 1; transform: translateX(0); }
.set-card:hover { border-color: var(--card-border-hover); background: rgba(255,255,255,0.06); }
.set-card:hover::before { opacity: 1; }

.set-num {
  font-size: 11px;
  font-weight: 700;
  color: var(--text3);
  min-width: 28px;
  letter-spacing: 0.05em;
}

.balls-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  flex: 1;
}

.ball-sep {
  width: 1px;
  height: 30px;
  background: rgba(255,255,255,0.1);
  margin: 0 2px;
}

.prize-tag {
  margin-left: auto;
  font-size: 12px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 20px;
  white-space: nowrap;
  opacity: 0;
  transform: scale(0.8);
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.prize-tag.show { opacity: 1; transform: scale(1); }

.prize-none  { background: rgba(255,255,255,0.06); color: var(--text3); }
.prize-5     { background: rgba(77,184,255,0.15); color: var(--cb); }
.prize-4     { background: rgba(77,255,170,0.15); color: var(--cgr); }
.prize-3     { background: rgba(255,210,52,0.15); color: var(--gold); }
.prize-2b    { background: rgba(204,136,255,0.2); color: var(--cp); }
.prize-1     { background: rgba(255,210,52,0.25); color: var(--gold); border: 1px solid rgba(255,210,52,0.4); }

/* ── BALL ROLL ANIMATION ── */
@keyframes ballRoll {
  0%   { opacity: 0; transform: scale(0) rotate(-180deg) translateY(-20px); }
  60%  { opacity: 1; transform: scale(1.15) rotate(10deg) translateY(2px); }
  80%  { transform: scale(0.92) rotate(-3deg); }
  100% { opacity: 1; transform: scale(1) rotate(0deg) translateY(0); }
}

.ball.entering {
  animation: ballRoll 0.5s cubic-bezier(.34,1.56,.64,1) both;
}

/* ── GEN BUTTON ── */
.gen-btn-wrap { display: flex; justify-content: center; margin-bottom: 2.5rem; }

.gen-btn {
  position: relative;
  border: none;
  background: none;
  padding: 0;
  cursor: pointer;
  border-radius: 14px;
  outline: none;
}

.gen-btn-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold2) 100%);
  border-radius: 14px;
  transition: filter 0.2s ease, transform 0.2s ease;
}

.gen-btn:hover .gen-btn-bg { filter: brightness(1.15); }
.gen-btn:active .gen-btn-bg { transform: scale(0.97); filter: brightness(0.95); }

.gen-btn-content {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 40px;
  font-family: 'Noto Sans KR', sans-serif;
  font-size: 16px;
  font-weight: 700;
  color: #1a1000;
  z-index: 1;
}

.gen-btn svg {
  transition: transform 0.5s ease;
}
.gen-btn:hover svg { transform: rotate(180deg); }

.gen-btn:disabled { opacity: 0.6; pointer-events: none; }

/* ── CHECK CARD ── */
.check-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 1.75rem;
  transition: border-color 0.2s;
}

.check-card:hover { border-color: var(--card-border-hover); }

.check-card-header { margin-bottom: 1.25rem; }

.check-card-header h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.3rem;
}

.check-card-header p {
  font-size: 13px;
  color: var(--text2);
  line-height: 1.5;
}

.check-inputs-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 0;
}

.check-inputs {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  flex: 1;
}

.numinput {
  width: 50px; height: 50px;
  background: var(--bg3);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  color: var(--text);
  font-family: 'Noto Sans KR', sans-serif;
  font-size: 15px;
  font-weight: 700;
  text-align: center;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
  -moz-appearance: textfield;
}
.numinput::-webkit-inner-spin-button,
.numinput::-webkit-outer-spin-button { -webkit-appearance: none; }
.numinput:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 2px rgba(255,210,52,0.15);
}

.numinput-bonus {
  border-color: rgba(204,136,255,0.4);
}
.numinput-bonus:focus {
  border-color: var(--cp);
  box-shadow: 0 0 0 2px rgba(204,136,255,0.15);
}

.check-plus {
  font-size: 18px;
  color: var(--text3);
  padding: 0 2px;
}

.check-btn {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 10px;
  color: var(--text);
  font-family: 'Noto Sans KR', sans-serif;
  font-size: 14px;
  font-weight: 700;
  padding: 12px 22px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  white-space: nowrap;
}
.check-btn:hover {
  background: rgba(255,210,52,0.1);
  border-color: rgba(255,210,52,0.4);
  color: var(--gold);
}
.check-btn:active { transform: scale(0.97); }

/* ── CHECK RESULT ── */
#checkResult {
  margin-top: 1.25rem;
}

.result-divider {
  border: none;
  border-top: 1px solid rgba(255,255,255,0.06);
  margin-bottom: 1rem;
}

.result-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: 13px;
  animation: fadeInRow 0.3s ease both;
}
.result-row:last-child { border-bottom: none; }

@keyframes fadeInRow {
  from { opacity: 0; transform: translateX(-8px); }
  to   { opacity: 1; transform: translateX(0); }
}

.result-set { min-width: 32px; color: var(--text3); font-weight: 700; }
.result-count { color: var(--text2); flex: 1; }
.result-prize-badge {
  font-size: 12px;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 20px;
}

.error-msg {
  color: var(--cr);
  font-size: 13px;
  margin-top: 0.5rem;
  animation: fadeInRow 0.2s ease;
}

/* ── MOBILE ── */
@media (max-width: 500px) {
  .ball-lg { width: 38px; height: 38px; font-size: 13px; }
  .balls-row { gap: 6px; }
  .set-card { padding: 0.75rem 1rem; gap: 8px; }
  .numinput { width: 42px; height: 42px; font-size: 13px; }
  .check-inputs-wrap { flex-direction: column; align-items: flex-start; }
  .check-btn { width: 100%; }
}