:root {
  --bg: #FFF8E7; --bg2: #FFEFC2; --card: #FFFFFF; --ink: #2B2118; --mut: #7A6A55; --line: #F0E2C0;
  --duck: #FFD43B; --accent: #FF8A1F; --accent-ink: #FFFFFF; --love: #FF5C7A; --fun: #36B37E; --energy: #3D8BFD;
  --shadow: 0 8px 30px rgba(120, 80, 0, .10);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #17140F; --bg2: #2A2214; --card: #241F17; --ink: #F5ECDD; --mut: #B4A58C; --line: #3A3122;
    --accent: #FF9A3C; --accent-ink: #1A1206; --shadow: 0 8px 30px rgba(0, 0, 0, .35);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #17140F; --bg2: #2A2214; --card: #241F17; --ink: #F5ECDD; --mut: #B4A58C; --line: #3A3122;
  --accent: #FF9A3C; --accent-ink: #1A1206; --shadow: 0 8px 30px rgba(0, 0, 0, .35);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink); overflow-x: hidden;
  font: 17px/1.65 "Pretendard", "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif;
}
a { color: var(--accent); }
h1, h2, h3 { letter-spacing: -.025em; line-height: 1.25; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
code { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: .88em; background: var(--bg2); padding: 1px 6px; border-radius: 6px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 10px 18px; border-radius: 999px;
  border: 1.5px solid var(--line); background: var(--card); color: var(--ink); font-weight: 800; text-decoration: none; min-height: 44px;
}
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: transparent; box-shadow: 0 6px 18px rgba(255, 138, 31, .3); }
.btn.big { padding: 14px 24px; font-size: 18px; }

/* nav */
.nav {
  position: sticky; top: 0; z-index: 5; display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 10px max(16px, calc(50vw - 560px)); background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px); border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 900; font-size: 19px; color: var(--ink); text-decoration: none; }
.nav-links { display: flex; align-items: center; gap: 18px; }
.nav-links a:not(.btn) { color: var(--ink); text-decoration: none; font-weight: 700; font-size: 15px; }
@media (max-width: 680px) { .nav-links a:not(.btn) { display: none; } }

/* hero */
.hero {
  max-width: 1120px; margin: 0 auto; padding: 48px 16px 24px;
  display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 32px; align-items: center;
}
@media (max-width: 860px) { .hero { grid-template-columns: minmax(0, 1fr); padding-top: 28px; text-align: center; } .cta { justify-content: center; } }
.eyebrow { margin: 0 0 6px; color: var(--accent); font-weight: 800; }
.hero h1 { font-size: clamp(34px, 6vw, 58px); margin: 0 0 16px; }
.hl { background: linear-gradient(transparent 58%, var(--duck) 58%); padding: 0 4px; color: var(--ink); }
.lead { font-size: 19px; color: var(--mut); margin: 0 0 22px; }
.cta { display: flex; gap: 10px; flex-wrap: wrap; }
.note { color: var(--mut); font-size: 14px; }
.hero-duck { position: relative; display: flex; flex-direction: column; align-items: center; padding-top: 60px; }
.hero-face {
  width: min(78vw, 380px); aspect-ratio: 1; cursor: pointer; border-radius: 50%;
  background: radial-gradient(circle, var(--bg2) 0 55%, transparent 70%);
}
.caption { color: var(--mut); font-size: 14px; text-align: center; min-height: 3em; max-width: 360px; }
.bubble {
  position: absolute; top: 0; left: 50%; transform: translateX(-50%); background: var(--card); border: 2px solid var(--ink);
  border-radius: 18px; padding: 8px 16px; font-weight: 800; white-space: nowrap;
}
.bubble::after {
  content: ""; position: absolute; left: 50%; bottom: -9px; width: 14px; height: 14px; background: var(--card);
  border-right: 2px solid var(--ink); border-bottom: 2px solid var(--ink); transform: translateX(-50%) rotate(45deg);
}
.bubble.pop { animation: pop .3s ease-out; }
@keyframes pop { 0% { transform: translateX(-50%) scale(.85); } 70% { transform: translateX(-50%) scale(1.06); } }

/* sections */
main { max-width: 1120px; margin: 0 auto; padding: 0 16px; }
.section { padding: 56px 0 8px; }
.section > h2 { font-size: clamp(26px, 4vw, 36px); margin: 0 0 8px; }
.sub { color: var(--mut); margin: 0 0 22px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 22px; padding: 20px; box-shadow: var(--shadow); }
.card h3 { margin: 0 0 10px; font-size: 20px; }
.card h3 small { color: var(--mut); font-weight: 600; font-size: 13px; margin-left: 4px; }
.big-emoji { font-size: 38px; display: block; margin-bottom: 6px; }
.tag { display: inline-block; font-size: 11px; font-weight: 800; padding: 1px 7px; border-radius: 999px; background: var(--duck); color: #3A2A1A; vertical-align: middle; }

.pillars, .ways, .grow, .games, .steps, .home-steps { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); margin-top: 18px; }
.pillars article { padding: 4px 4px 0; }
.pillars p, .game-card p, .grow p, .steps p, .home-steps p { color: var(--mut); margin: 0; }
.home-steps { margin-top: 16px; }
.home-steps ol { margin: 0; padding-left: 20px; color: var(--mut); }

.emotion-grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); }
.emotion { background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 14px 14px 16px; text-align: center; box-shadow: var(--shadow); transition: transform .15s; }
.emotion:hover { transform: translateY(-3px); }
.emotion .mini { width: 120px; height: 120px; margin: 4px auto 6px; }
.emotion h3 { margin: 0 0 4px; font-size: 17px; }
.emotion p { margin: 0; color: var(--mut); font-size: 14px; line-height: 1.5; }

.list { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.list li { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 10px; padding-bottom: 8px; border-bottom: 1px dashed var(--line); font-size: 15px; }
.list li:last-child { border-bottom: 0; padding-bottom: 0; }
.list span { color: var(--mut); }

.demo-bars { display: grid; gap: 10px; margin-bottom: 14px; }
.demo-bars div { display: grid; grid-template-columns: 70px 1fr; align-items: center; gap: 8px; font-weight: 700; font-size: 14px; }
.demo-bars i { height: 10px; border-radius: 99px; background: var(--line); overflow: hidden; }
.demo-bars b { display: block; height: 100%; border-radius: inherit; }
.levels { list-style: none; padding: 0; margin: 0 0 14px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; text-align: center; }
.levels li { display: flex; flex-direction: column; align-items: center; background: var(--bg); border-radius: 14px; padding: 8px 2px; }
.levels span { font-size: 28px; }
.levels b { font-size: 14px; }
.levels small { color: var(--mut); font-size: 12px; }
blockquote { margin: 0 0 12px; padding: 12px 14px; border-left: 4px solid var(--duck); background: var(--bg); border-radius: 0 12px 12px 0; font-size: 15px; }

.arch { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; justify-content: center; margin-top: 18px; }
.node { flex: 1 1 220px; display: flex; flex-direction: column; align-items: center; text-align: center; gap: 2px; padding: 12px; }
.node span { font-size: 40px; }
.node small { color: var(--mut); }
.link-line { flex: 0 1 180px; text-align: center; color: var(--mut); font-size: 14px; font-weight: 700; position: relative; padding: 14px 0; }
.link-line::before { content: ""; position: absolute; left: 0; right: 0; top: 50%; border-top: 3px dashed var(--accent); z-index: 0; }
.link-line span { position: relative; background: var(--card); padding: 0 8px; }
@media (max-width: 620px) { .link-line { flex-basis: 100%; } .link-line::before { left: 50%; right: auto; top: 0; bottom: 0; border-top: 0; border-left: 3px dashed var(--accent); } }

.steps .num { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--duck); color: #3A2A1A; font-weight: 900; margin-bottom: 8px; }

.footer { max-width: 1120px; margin: 64px auto 0; padding: 24px 16px 48px; border-top: 1px solid var(--line); font-size: 14px; }
.footer p { margin: 0 0 6px; }
.muted { color: var(--mut); }

.night-card {
  display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 28px; border-radius: 26px;
  background: linear-gradient(135deg, #0E1030, #3A2A63); color: #EDEBFF; text-decoration: none; box-shadow: var(--shadow);
}
.night-card h2 { margin: 0 0 8px; font-size: clamp(24px, 4vw, 32px); }
.night-card p { color: #C9C6EE; margin: 0 0 16px; }
.night-card .eyebrow { color: #FFE08A; }
.night-card img { flex: none; border-radius: 30px; }
@media (max-width: 620px) { .night-card { flex-direction: column-reverse; text-align: center; } }