@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans+KR:wght@300;400;600;700&family=Playfair+Display:wght@600;700&display=swap');

:root {
  --bg: #f5f0e7;
  --bg-2: #f9f6f1;
  --ink: #1e1a16;
  --accent: #e08a1e;
  --accent-deep: #b8640c;
  --card: #ffffff;
  --shadow: 0 24px 50px rgba(30, 26, 22, 0.15);
  --chip-bg: #fff5e6;
  --chip-border: rgba(224, 138, 30, 0.35);
  --chip-bonus-bg: #fbe9ff;
  --chip-bonus-border: rgba(140, 68, 184, 0.45);
  --chip-bonus-ink: #6b2c8f;
  --panel-border: rgba(30, 26, 22, 0.12);
  --ghost-border: rgba(30, 26, 22, 0.2);
  --subtitle-ink: rgba(30, 26, 22, 0.7);
  --meta-ink: rgba(30, 26, 22, 0.65);
}

body[data-theme='light'] {
  color-scheme: light;
}

body[data-theme='dark'] {
  color-scheme: dark;
  --bg: #0f1014;
  --bg-2: #181b22;
  --ink: #f2f1ee;
  --accent: #f3b04c;
  --accent-deep: #f3b04c;
  --card: #1b1f27;
  --shadow: 0 24px 50px rgba(0, 0, 0, 0.45);
  --chip-bg: rgba(243, 176, 76, 0.15);
  --chip-border: rgba(243, 176, 76, 0.5);
  --chip-bonus-bg: rgba(173, 114, 221, 0.2);
  --chip-bonus-border: rgba(173, 114, 221, 0.55);
  --chip-bonus-ink: #e4d2f4;
  --panel-border: rgba(242, 241, 238, 0.12);
  --ghost-border: rgba(242, 241, 238, 0.24);
  --subtitle-ink: rgba(242, 241, 238, 0.75);
  --meta-ink: rgba(242, 241, 238, 0.6);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'IBM Plex Sans KR', sans-serif;
  color: var(--ink);
  min-height: 100vh;
  background: radial-gradient(circle at top, rgba(224, 138, 30, 0.18), transparent 55%),
    linear-gradient(120deg, var(--bg) 0%, var(--bg-2) 45%, var(--bg) 100%);
  display: flex;
  justify-content: center;
  padding: 48px 16px 72px;
  transition: background 0.4s ease, color 0.4s ease;
}

.app {
  width: min(920px, 100%);
  display: grid;
  gap: 32px;
}

.hero {
  display: grid;
  gap: 12px;
}

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

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent-deep);
}

h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(32px, 5vw, 52px);
  margin: 0;
}

.subtitle {
  font-size: 16px;
  color: var(--subtitle-ink);
  margin: 0;
}

.panel {
  background: var(--card);
  border-radius: 24px;
  padding: 24px;
  box-shadow: var(--shadow);
  border: 1px solid var(--panel-border);
  display: grid;
  gap: 16px;
  transition: background 0.4s ease, border 0.4s ease, box-shadow 0.4s ease;
}

.controls {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  align-items: end;
}

.field {
  display: grid;
  gap: 8px;
  font-weight: 600;
}

input[type='number'] {
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--panel-border);
  font-size: 16px;
  font-family: inherit;
  background: var(--bg-2);
  color: var(--ink);
}

button {
  cursor: pointer;
  border: none;
  border-radius: 999px;
  padding: 12px 18px;
  font-size: 15px;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.3s ease, color 0.3s ease;
}

button:active {
  transform: scale(0.97);
}

.primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 12px 24px rgba(224, 138, 30, 0.3);
}

.ghost {
  background: transparent;
  border: 1px solid var(--ghost-border);
  color: var(--ink);
}

.meta {
  font-size: 14px;
  color: var(--meta-ink);
  display: grid;
  gap: 4px;
}

.results {
  display: grid;
  gap: 16px;
}

h2 {
  margin: 0;
  font-size: 20px;
}

.result-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}

.result-item {
  background: var(--card);
  border-radius: 20px;
  padding: 18px 20px;
  display: grid;
  gap: 12px;
  box-shadow: 0 12px 30px rgba(30, 26, 22, 0.08);
  animation: fadeInUp 0.4s ease forwards;
  border: 1px solid var(--panel-border);
}

.set-label {
  font-weight: 700;
  color: var(--accent-deep);
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chip {
  min-width: 44px;
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--chip-bg);
  border: 1px solid var(--chip-border);
  text-align: center;
  font-weight: 700;
}

.chip.bonus {
  background: var(--chip-bonus-bg);
  border-color: var(--chip-bonus-border);
  color: var(--chip-bonus-ink);
}

.theme-toggle {
  display: inline-flex;
  background: var(--card);
  border: 1px solid var(--panel-border);
  border-radius: 999px;
  padding: 4px;
  gap: 4px;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
}

.theme-btn {
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 13px;
  background: transparent;
  color: var(--ink);
  border: 1px solid transparent;
}

.theme-btn.is-active {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 10px 20px rgba(224, 138, 30, 0.3);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 640px) {
  body {
    padding: 32px 16px 48px;
  }

  .panel {
    padding: 20px;
  }

  .controls {
    grid-template-columns: 1fr;
  }
}