/* ===========================
   Design Tokens
   =========================== */
:root {
  /* Colors */
  --bg: #fcf8f0;
  --bg-alt: #efebe9;
  --bg-warm: #fff8e1;
  --bg-green: #e8f5e9;
  --text: #5d4037;
  --text-sub: #795548;
  --text-light: #bcaaa4;
  --brown-200: #d7ccc8;
  --brown-700: #4e342e;
  --green: #81c784;
  --green-dark: #4caf50;
  --green-deep: #2e7d32;
  --orange: #ffb74d;
  --white: #ffffff;
  --overlay: rgba(93, 64, 55, 0.5);

  /* Shadows (brown-based) */
  --shadow-sm: 0 1px 3px rgba(93,64,55,0.08);
  --shadow-md: 0 4px 12px rgba(93,64,55,0.12);
  --shadow-lg: 0 8px 24px rgba(93,64,55,0.16);

  /* Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Spacing */
  --sp-xs: 8px;
  --sp-sm: 12px;
  --sp-md: 16px;
  --sp-lg: 24px;
  --sp-xl: 32px;
  --sp-2xl: 48px;
  --sp-3xl: 64px;
  --sp-4xl: 96px;

  /* Transitions */
  --tr-fast: 150ms ease;
  --tr-normal: 300ms ease;
  --tr-slow: 600ms ease-out;
  --tr-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Z-index */
  --z-sticky: 200;
  --z-top: 9999;
}

/* ===========================
   Reset & Base
   =========================== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Noto Sans KR', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: 'Nunito', 'Noto Sans KR', sans-serif;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(24px, 4vw, 32px);
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--sp-2xl);
}

h3 {
  font-size: clamp(18px, 3vw, 24px);
  font-weight: 700;
  margin-bottom: var(--sp-xs);
}

p {
  margin-bottom: var(--sp-md);
}

a {
  color: var(--text);
  text-decoration: none;
  transition: color var(--tr-fast);
}

a:hover {
  color: var(--green-deep);
}

img, svg {
  max-width: 100%;
  height: auto;
  display: block;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* ===========================
   Layout
   =========================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--sp-md);
}

.section {
  padding: var(--sp-4xl) 0;
}

@media (max-width: 599px) {
  .section {
    padding: var(--sp-2xl) 0;
  }
  .container {
    padding: 0 var(--sp-md);
  }
}

@media (min-width: 600px) and (max-width: 959px) {
  .container {
    padding: 0 var(--sp-lg);
  }
  .section {
    padding: var(--sp-3xl) 0;
  }
}

@media (min-width: 960px) {
  .container {
    padding: 0 var(--sp-xl);
  }
}

/* ===========================
   Animations
   =========================== */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--tr-slow), transform var(--tr-slow);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@media (prefers-reduced-motion: reduce) {
  .fade-in {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .hero__icon, .hero__scroll-hint {
    animation: none !important;
  }
  html {
    scroll-behavior: auto;
  }
  .back-to-top {
    transition: none;
  }
}

/* ===========================
   Hero
   =========================== */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%);
  position: relative;
  padding: var(--sp-xl);
}

.hero__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-lg);
}

.hero__icon {
  animation: float 3s ease-in-out infinite;
}

.hero__title {
  font-size: clamp(28px, 6vw, 56px);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.hero__tagline {
  font-size: clamp(16px, 2.5vw, 20px);
  color: var(--text-sub);
  margin-bottom: 0;
}

.hero__cta {
  display: inline-block;
  background: var(--green);
  color: var(--white);
  padding: var(--sp-sm) var(--sp-xl);
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 1rem;
  transition: background var(--tr-fast), transform var(--tr-fast);
}

.hero__cta:hover {
  background: var(--green-dark);
  color: var(--white);
  transform: scale(1.02);
}

.hero__cta:active {
  transform: scale(0.98);
}

.hero__scroll-hint {
  position: absolute;
  bottom: var(--sp-xl);
  font-size: 1.5rem;
  color: var(--text-light);
  animation: bounce 2s ease-in-out infinite;
}

/* ===========================
   About
   =========================== */
.about {
  background: var(--white);
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-2xl);
  align-items: center;
  margin-bottom: var(--sp-3xl);
}

@media (min-width: 768px) {
  .about__grid {
    grid-template-columns: 5fr 7fr;
  }
}

.about__image svg {
  margin: 0 auto;
  border-radius: var(--radius-lg);
}

.about__text h2 {
  text-align: left;
  margin-bottom: var(--sp-lg);
}

.about__cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--sp-xl);
}

/* ===========================
   Card
   =========================== */
.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--sp-xl);
  box-shadow: var(--shadow-md);
  transition: transform var(--tr-normal), box-shadow var(--tr-normal);
}

@media (hover: hover) {
  .card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
  }
}

.card__icon {
  font-size: 2rem;
  margin-bottom: var(--sp-sm);
}

/* ===========================
   Features
   =========================== */
.features {
  background: var(--bg);
}

.features__list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--sp-xl);
}

.feature-item {
  background: var(--white);
  padding: var(--sp-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: transform var(--tr-normal), box-shadow var(--tr-normal);
}

@media (hover: hover) {
  .feature-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
  }
}

.feature-item__icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: var(--sp-sm);
}

.feature-item p {
  margin-bottom: 0;
  color: var(--text-sub);
}

/* ===========================
   Philosophy
   =========================== */
.philosophy {
  background: var(--white);
}

.philosophy__content {
  max-width: 720px;
  margin: 0 auto var(--sp-2xl);
  text-align: center;
}

.philosophy__content blockquote {
  font-family: 'Gaegu', cursive;
  font-size: clamp(24px, 4vw, 36px);
  color: var(--green-deep);
  margin: var(--sp-xl) 0;
  padding: var(--sp-lg);
  border-left: 4px solid var(--green);
  background: var(--bg-green);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.philosophy__rules {
  max-width: 600px;
  margin: 0 auto;
  background: var(--bg-warm);
  padding: var(--sp-xl);
  border-radius: var(--radius-xl);
}

.philosophy__rules h3 {
  text-align: center;
  margin-bottom: var(--sp-lg);
}

.philosophy__rules ol {
  list-style: none;
  counter-reset: rules;
}

.philosophy__rules li {
  counter-increment: rules;
  padding: var(--sp-sm) 0;
  border-bottom: 1px solid var(--brown-200);
  font-size: 1rem;
}

.philosophy__rules li:last-child {
  border-bottom: none;
}

.philosophy__rules li::before {
  content: counter(rules, korean-informal) ". ";
  font-weight: 700;
  color: var(--green-deep);
}

/* ===========================
   Gallery
   =========================== */
.gallery {
  background: var(--bg-alt);
}

.gallery__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--sp-lg);
}

.gallery__item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--tr-normal);
}

@media (hover: hover) {
  .gallery__item:hover {
    transform: scale(1.03);
  }
  .gallery__item:hover .gallery__caption {
    opacity: 1;
  }
}

.gallery__placeholder {
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
}

.gallery__caption {
  text-align: center;
  padding: var(--sp-sm);
  font-family: 'Gaegu', cursive;
  font-size: 1.1rem;
  color: var(--text);
  background: var(--white);
  transition: opacity var(--tr-normal);
}

@media (hover: hover) {
  .gallery__caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    opacity: 0;
    background: rgba(255,255,255,0.9);
  }
}

/* Gallery SVG */
.gallery__svg {
  width: 100%;
  height: 100%;
}

.gallery__item {
  cursor: pointer;
}

/* Bath: sink & steam */
.gallery__item.active[data-scene="bath"] .capy-bath {
  animation: sinkDown 1.5s ease-in-out forwards;
}
.gallery__item.active[data-scene="bath"] .steam {
  animation: steamRise 1.5s ease-out 0.5s forwards;
}

@keyframes sinkDown {
  0% { transform: translateY(0); }
  50% { transform: translateY(12px); }
  100% { transform: translateY(6px); }
}
@keyframes steamRise {
  0% { opacity: 0; transform: translateY(0); }
  50% { opacity: 0.7; transform: translateY(-8px); }
  100% { opacity: 0; transform: translateY(-20px); }
}

/* Rest: zzz */
.gallery__item.active[data-scene="rest"] .zzz {
  animation: zzzAppear 2s ease-out forwards;
}
@keyframes zzzAppear {
  0% { opacity: 0; transform: translateY(5px); }
  30% { opacity: 1; transform: translateY(0); }
  80% { opacity: 1; transform: translateY(-8px); }
  100% { opacity: 0; transform: translateY(-15px); }
}

/* Social: friends appear */
.gallery__item.active[data-scene="social"] .friends {
  animation: friendsFadeIn 1s ease-out forwards;
}
@keyframes friendsFadeIn {
  0% { opacity: 0; transform: scale(0.5); }
  60% { opacity: 1; transform: scale(1.05); }
  100% { opacity: 1; transform: scale(1); }
}

/* Meditate: close eyes + aura */
.gallery__item.active[data-scene="meditate"] .eyes-open {
  animation: eyesFadeOut 0.5s ease forwards;
}
.gallery__item.active[data-scene="meditate"] .eyes-closed {
  animation: eyesFadeIn 0.5s ease 0.3s forwards;
}
.gallery__item.active[data-scene="meditate"] .aura {
  animation: auraPulse 2s ease-in-out forwards;
}
@keyframes eyesFadeOut {
  to { opacity: 0; }
}
@keyframes eyesFadeIn {
  to { opacity: 1; }
}
@keyframes auraPulse {
  0% { opacity: 0; transform: scale(0.8); }
  50% { opacity: 0.8; transform: scale(1.05); }
  100% { opacity: 0; transform: scale(1.2); }
}

/* Swim: ripples + bubbles */
.gallery__item.active[data-scene="swim"] .capy-swim {
  animation: swimMove 2s ease-in-out forwards;
}
.gallery__item.active[data-scene="swim"] .ripples {
  animation: rippleSpread 1.5s ease-out 0.3s forwards;
}
.gallery__item.active[data-scene="swim"] .bubbles {
  animation: bubbleUp 2s ease-out 0.5s forwards;
}
@keyframes swimMove {
  0% { transform: translate(0, 0); }
  25% { transform: translate(-8px, 2px); }
  50% { transform: translate(0, -2px); }
  75% { transform: translate(8px, 2px); }
  100% { transform: translate(0, 0); }
}
@keyframes rippleSpread {
  0% { opacity: 0.8; transform: scale(0.8); }
  100% { opacity: 0; transform: scale(1.3); }
}
@keyframes bubbleUp {
  0% { opacity: 0.7; transform: translateY(0); }
  100% { opacity: 0; transform: translateY(-30px); }
}

/* BFF: lean together + hearts */
.gallery__item.active[data-scene="bff"] .capy-left {
  animation: leanRight 1.5s ease-in-out forwards;
}
.gallery__item.active[data-scene="bff"] .capy-right {
  animation: leanLeft 1.5s ease-in-out forwards;
}
.gallery__item.active[data-scene="bff"] .hearts {
  animation: heartsFloat 2s ease-out 0.3s forwards;
}
@keyframes leanRight {
  0% { transform: translate(0, 0); }
  50% { transform: translate(5px, -2px) rotate(3deg); }
  100% { transform: translate(0, 0); }
}
@keyframes leanLeft {
  0% { transform: translate(0, 0); }
  50% { transform: translate(-5px, -2px) rotate(-3deg); }
  100% { transform: translate(0, 0); }
}
@keyframes heartsFloat {
  0% { opacity: 0; transform: translateY(5px) scale(0.5); }
  40% { opacity: 1; transform: translateY(-5px) scale(1.1); }
  80% { opacity: 1; transform: translateY(-15px) scale(1); }
  100% { opacity: 0; transform: translateY(-25px) scale(0.8); }
}

.gallery__footer-text {
  text-align: center;
  margin-top: var(--sp-xl);
  font-family: 'Gaegu', cursive;
  font-size: 1.2rem;
  color: var(--text-sub);
}

/* ===========================
   Fun Zone
   =========================== */
.fun {
  background: var(--bg-warm);
}

.fun__desc {
  text-align: center;
  color: var(--text-sub);
}

.fun__fortune {
  max-width: 600px;
  margin: var(--sp-xl) auto var(--sp-3xl);
  text-align: center;
}

.fun__message {
  font-family: 'Gaegu', cursive;
  font-size: clamp(18px, 3vw, 24px);
  min-height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-lg);
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  margin-bottom: var(--sp-lg);
  transition: transform var(--tr-bounce);
}

.fun__message.pop {
  transform: scale(1.05);
}

.fun__quiz {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.fun__quiz h3 {
  margin-bottom: var(--sp-sm);
}

/* ===========================
   Quiz
   =========================== */
.quiz {
  margin-top: var(--sp-xl);
}

.quiz__step {
  display: flex;
  flex-direction: column;
  gap: var(--sp-sm);
}

.quiz__question {
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: var(--sp-xs);
}

.quiz__result {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: var(--sp-xl);
  box-shadow: var(--shadow-md);
  text-align: center;
}

.quiz__result h4 {
  font-size: 1.3rem;
  color: var(--green-deep);
  margin-bottom: var(--sp-sm);
}

.hidden {
  display: none !important;
}

/* ===========================
   Buttons
   =========================== */
.btn {
  display: inline-block;
  padding: var(--sp-sm) var(--sp-xl);
  border-radius: var(--radius-md);
  font-family: 'Noto Sans KR', sans-serif;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background var(--tr-fast), transform var(--tr-fast), box-shadow var(--tr-fast);
  min-height: 44px;
  min-width: 44px;
}

.btn--primary {
  background: var(--green);
  color: var(--white);
  border-color: var(--green);
}

.btn--primary:hover {
  background: var(--green-dark);
  border-color: var(--green-dark);
  transform: scale(1.02);
}

.btn--primary:active {
  transform: scale(0.98);
}

.btn:focus-visible {
  outline: 2px solid var(--green-deep);
  outline-offset: 2px;
}

.hero__cta:focus-visible {
  outline: 2px solid var(--green-deep);
  outline-offset: 2px;
}

a:focus-visible {
  outline: 2px solid var(--green-deep);
  outline-offset: 2px;
}

.btn--outline {
  background: var(--white);
  color: var(--text);
  border-color: var(--brown-200);
}

.btn--outline:hover {
  border-color: var(--green);
  background: var(--bg-green);
}

/* ===========================
   Facts
   =========================== */
.facts {
  background: var(--white);
}

.facts__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--sp-lg);
}

.fact-card {
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: var(--sp-xl);
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--orange);
}

.fact-card p {
  margin-bottom: 0;
}

/* ===========================
   Footer
   =========================== */
.footer {
  background: var(--brown-700);
  color: var(--white);
  padding: var(--sp-3xl) 0 var(--sp-xl);
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-lg);
  text-align: center;
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  font-family: 'Nunito', sans-serif;
  font-weight: 700;
  font-size: 1.2rem;
}

.footer__nav {
  display: flex;
  gap: var(--sp-lg);
  flex-wrap: wrap;
  justify-content: center;
}

.footer__nav a {
  color: var(--brown-200);
  font-size: 0.9rem;
  transition: color var(--tr-fast);
}

.footer__nav a:hover {
  color: var(--white);
}

.footer__quote {
  font-family: 'Gaegu', cursive;
  font-size: 1.2rem;
  color: var(--orange);
}

.footer__copy {
  font-size: 0.8rem;
  color: var(--text-light);
}

.footer__easter {
  font-size: 0.75rem;
  color: var(--text-light);
  opacity: 0.6;
}

/* ===========================
   Back to Top
   =========================== */
.back-to-top {
  position: fixed;
  bottom: var(--sp-xl);
  right: var(--sp-xl);
  width: 48px;
  height: 48px;
  border: none;
  border-radius: var(--radius-full);
  background: var(--white);
  box-shadow: var(--shadow-md);
  font-size: 1.5rem;
  cursor: pointer;
  z-index: var(--z-top);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--tr-normal), visibility var(--tr-normal), transform var(--tr-fast);
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: scale(1.1);
}

.back-to-top:active {
  transform: scale(0.95);
}