:root {
  color-scheme: light;
  --bg: #fff9f1;
  --bg-soft: #ffe9d6;
  --panel: #ffffff;
  --text: #2b2a27;
  --muted: #6b5e52;
  --accent: #f4a261;
  --accent-2: #2a9d8f;
  --border: #efe1d4;
  --shadow: rgba(75, 63, 51, 0.12);
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Noto Sans JP", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top, #fff2e4 0%, transparent 60%), var(--bg);
}

h1,
h2 {
  font-family: "Gaegu", cursive;
  letter-spacing: 0.3px;
}

h1 {
  font-size: clamp(2.4rem, 4vw, 3.3rem);
  margin: 0 0 12px;
}

h2 {
  margin: 0 0 12px;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
}

p {
  margin: 0 0 12px;
  line-height: 1.6;
}

ul {
  padding: 0;
  margin: 0;
  list-style: none;
}

.hero {
  padding: 56px 16px 32px;
  background: linear-gradient(135deg, #fff1de 0%, #fff9f1 60%);
  border-bottom: 1px solid var(--border);
}

.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
  align-items: center;
}

.badge {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--accent-2);
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
}

.subtitle {
  font-size: 1.05rem;
  color: var(--muted);
}

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

.hero-meta li {
  padding: 8px 12px;
  border-radius: 12px;
  background: var(--panel);
  border: 1px solid var(--border);
  font-size: 0.95rem;
}

.cat {
  position: relative;
  display: grid;
  justify-items: center;
}

.cat-face {
  position: relative;
  width: 160px;
  height: 140px;
  background: #fff;
  border: 3px solid #2b2a27;
  border-radius: 60% 60% 55% 55%;
  box-shadow: 0 12px 24px var(--shadow);
}

.cat-ear {
  position: absolute;
  top: -18px;
  width: 50px;
  height: 50px;
  background: #fff;
  border: 3px solid #2b2a27;
  border-bottom: none;
  border-radius: 8px 8px 0 0;
}

.cat-ear.left {
  left: 16px;
  transform: rotate(-12deg);
}

.cat-ear.right {
  right: 16px;
  transform: rotate(12deg);
}

.cat-eye {
  position: absolute;
  top: 42px;
  width: 16px;
  height: 16px;
  background: #2b2a27;
  border-radius: 50%;
}

.cat-eye.left {
  left: 45px;
}

.cat-eye.right {
  right: 45px;
}

.cat-nose {
  position: absolute;
  top: 68px;
  left: 50%;
  width: 14px;
  height: 10px;
  background: var(--accent);
  border-radius: 50% 50% 60% 60%;
  transform: translateX(-50%);
}

.cat-mouth {
  position: absolute;
  top: 84px;
  left: 50%;
  width: 36px;
  height: 18px;
  border-bottom: 3px solid #2b2a27;
  border-radius: 0 0 50px 50px;
  transform: translateX(-50%);
}

.cat-whisker {
  position: absolute;
  top: 78px;
  width: 40px;
  height: 2px;
  background: #2b2a27;
}

.cat-whisker.left {
  left: 8px;
  transform: rotate(-6deg);
}

.cat-whisker.right {
  right: 8px;
  transform: rotate(6deg);
}

.cat-bubble {
  margin-top: 16px;
  padding: 8px 14px;
  background: #fff;
  border-radius: 16px;
  border: 1px solid var(--border);
  font-size: 0.95rem;
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 16px 60px;
}

.panel {
  background: var(--panel);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--border);
  box-shadow: 0 16px 30px var(--shadow);
}

.tips {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.tip-title {
  display: block;
  font-weight: 700;
  color: var(--accent-2);
}

.tip-body {
  display: block;
  color: var(--muted);
  margin-top: 4px;
}

.section-head {
  margin: 40px 0 20px;
}

.day-list {
  display: grid;
  gap: 16px;
}

details.day {
  background: var(--panel);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: 0 12px 26px var(--shadow);
  padding: 16px 18px;
}

details.day > summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-weight: 700;
  font-size: 1.1rem;
}

details.day > summary::-webkit-details-marker {
  display: none;
}

.summary-meta {
  color: var(--muted);
  font-weight: 500;
  font-size: 0.95rem;
}

.expressions {
  margin-top: 16px;
  display: grid;
  gap: 12px;
}

.expression {
  padding: 12px 14px;
  border-radius: 14px;
  background: #fffaf4;
  border: 1px solid var(--border);
}

.expression h3 {
  margin: 0 0 6px;
  font-size: 1.05rem;
}

.expression .jp {
  font-weight: 700;
}

.expression .kr {
  color: var(--muted);
  font-size: 0.95rem;
}

.expression .label {
  font-weight: 600;
  color: var(--accent-2);
}

.roleplay,
.quiz {
  margin-top: 16px;
  padding: 14px;
  border-radius: 14px;
  background: #f8f2ea;
  border: 1px dashed var(--border);
}

.quiz summary {
  cursor: pointer;
  font-weight: 700;
}

.quiz-list {
  margin-top: 8px;
  display: grid;
  gap: 6px;
}

.quiz-item span {
  font-weight: 600;
  color: var(--accent);
}

footer {
  text-align: center;
  color: var(--muted);
  padding: 32px 16px 48px;
  border-top: 1px solid var(--border);
}

@media (max-width: 720px) {
  .hero-inner {
    text-align: center;
  }

  .hero-meta {
    justify-content: center;
  }

  .cat {
    margin-top: 18px;
  }
}