:root {
  --bg-top: #f7efe4;
  --bg-bottom: #d8e6f5;
  --ink: #152033;
  --muted: #5f6877;
  --panel: rgba(255, 255, 255, 0.76);
  --panel-border: rgba(21, 32, 51, 0.08);
  --shadow: 0 24px 60px rgba(38, 55, 77, 0.16);
  --yellow: #f4c542;
  --blue: #4d8ef7;
  --red: #ef6351;
  --gray: #8b94a3;
  --green: #32a67a;
  --control-bg: rgba(255, 255, 255, 0.95);
  --button-bg: linear-gradient(135deg, #152033, #2b538a);
  --button-shadow: 0 14px 30px rgba(21, 32, 51, 0.2);
  --toggle-bg: rgba(255, 255, 255, 0.75);
  --toggle-border: rgba(21, 32, 51, 0.1);
  --card-bg: rgba(255, 255, 255, 0.8);
}

:root[data-theme="dark"] {
  --bg-top: #0d1321;
  --bg-bottom: #17253d;
  --ink: #f3f7ff;
  --muted: #b5c1d4;
  --panel: rgba(10, 18, 32, 0.78);
  --panel-border: rgba(255, 255, 255, 0.1);
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  --control-bg: rgba(18, 28, 46, 0.95);
  --button-bg: linear-gradient(135deg, #f4c542, #ef6351);
  --button-shadow: 0 14px 30px rgba(0, 0, 0, 0.25);
  --toggle-bg: rgba(18, 28, 46, 0.9);
  --toggle-border: rgba(255, 255, 255, 0.1);
  --card-bg: rgba(14, 24, 40, 0.9);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Pretendard", "Noto Sans KR", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.75), transparent 35%),
    linear-gradient(160deg, var(--bg-top), var(--bg-bottom));
}

.page {
  width: min(960px, calc(100% - 32px));
  margin: 0 auto;
  padding: 56px 0 80px;
}

.hero {
  margin-bottom: 28px;
}

.hero-top {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  margin-bottom: 12px;
}

.eyebrow {
  margin: 0;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: #9e5b34;
}

:root[data-theme="dark"] .eyebrow {
  color: #f4c542;
}

.theme-toggle {
  border: 1px solid var(--toggle-border);
  background: var(--toggle-bg);
  color: var(--ink);
  border-radius: 999px;
  min-height: 44px;
  padding: 0 16px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04);
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.2rem, 5vw, 4.6rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
}

.hero-text {
  max-width: 560px;
  margin: 18px 0 0;
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--muted);
}

.panel {
  padding: 24px;
  border: 1px solid var(--panel-border);
  border-radius: 28px;
  background: var(--panel);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.controls {
  display: flex;
  gap: 16px;
  align-items: end;
  justify-content: space-between;
  flex-wrap: wrap;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 180px;
  font-weight: 600;
}

.field span {
  font-size: 0.95rem;
}

.field select,
.generate-button {
  height: 52px;
  border: 0;
  border-radius: 16px;
  font: inherit;
}

.field select {
  padding: 0 16px;
  background: var(--control-bg);
  color: var(--ink);
  box-shadow: inset 0 0 0 1px rgba(21, 32, 51, 0.08);
}

.generate-button {
  padding: 0 24px;
  font-weight: 700;
  color: white;
  background: var(--button-bg);
  cursor: pointer;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease;
  box-shadow: var(--button-shadow);
}

.generate-button:hover {
  transform: translateY(-1px);
}

.summary {
  margin: 24px 0 18px;
  color: var(--muted);
  font-weight: 600;
}

.results {
  display: grid;
  gap: 14px;
}

.result-card {
  padding: 18px;
  border-radius: 22px;
  background: var(--card-bg);
  box-shadow: inset 0 0 0 1px rgba(21, 32, 51, 0.06);
}

.card-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 0.92rem;
}

.card-label {
  font-weight: 700;
}

.card-copy {
  color: var(--muted);
}

.number-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ball {
  display: grid;
  place-items: center;
  width: 54px;
  aspect-ratio: 1;
  border-radius: 50%;
  font-size: 1.1rem;
  font-weight: 800;
  color: white;
  box-shadow: inset 0 -5px 12px rgba(0, 0, 0, 0.12);
}

.ball-yellow {
  background: var(--yellow);
  color: #4d3600;
}

.ball-blue {
  background: var(--blue);
}

.ball-red {
  background: var(--red);
}

.ball-gray {
  background: var(--gray);
}

.ball-green {
  background: var(--green);
}

@media (max-width: 640px) {
  .page {
    width: min(100% - 20px, 960px);
    padding: 32px 0 48px;
  }

  .panel {
    padding: 18px;
    border-radius: 22px;
  }

  .hero-top {
    flex-direction: column;
    align-items: flex-start;
  }

  .controls {
    align-items: stretch;
  }

  .field,
  .generate-button {
    width: 100%;
  }

  .card-header {
    flex-direction: column;
  }

  .ball {
    width: 48px;
    font-size: 1rem;
  }
}