:root {
  color-scheme: light dark;
  --bg: #fff8ee;
  --surface: #ffffff;
  --soft: #fff0e5;
  --text: #3f3029;
  --muted: #715d50;
  --brown: #6b4a3a;
  --peach: #f4a98a;
  --border: #e8d8ca;
  --link: #77432d;
  --focus: #94431e;
  --shadow: 0 8px 28px rgb(107 74 58 / 6%);
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo",
    "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Malgun Gothic",
    "Segoe UI", Roboto, "Noto Sans KR", "Noto Sans JP", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 1.5rem;
}

html:not([data-language]) [data-lang]:not([data-lang="ko"]),
html[data-language="ko"] [data-lang]:not([data-lang="ko"]),
html[data-language="en"] [data-lang]:not([data-lang="en"]),
html[data-language="ja"] [data-lang]:not([data-lang="ja"]) {
  display: none !important;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-size: 1rem;
  line-height: 1.75;
  overflow-wrap: break-word;
  -webkit-text-size-adjust: 100%;
}

a {
  color: var(--link);
  text-underline-offset: 0.2em;
  text-decoration-thickness: 1px;
}

a:hover {
  text-decoration-thickness: 2px;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
}

main:focus {
  outline: none;
}

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

h1,
h2,
h3 {
  color: var(--brown);
  line-height: 1.35;
  letter-spacing: -0.025em;
  overflow-wrap: anywhere;
}

h1 {
  margin: 0 0 0.8rem;
  font-size: clamp(2rem, 4vw, 3.1rem);
  text-wrap: balance;
}

h2 {
  margin: 0 0 1.25rem;
  font-size: clamp(1.35rem, 2.5vw, 1.8rem);
  text-wrap: balance;
}

p {
  margin: 0 0 1rem;
}

ul,
ol {
  padding-inline-start: 1.5rem;
}

.skip-link {
  position: absolute;
  z-index: 10;
  top: 0.75rem;
  left: 1rem;
  padding: 0.65rem 1rem;
  border-radius: 0.75rem;
  background: var(--surface);
  color: var(--link);
  box-shadow: var(--shadow);
  transform: translateY(-180%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header,
.site-main,
.site-footer {
  width: min(100% - 2rem, 70rem);
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding-block: 1.25rem 1.75rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  max-width: 100%;
  color: var(--brown);
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.45;
  text-decoration: none;
}

.brand img {
  flex: 0 0 40px;
  border-radius: 12px;
}

.language-toggle {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.2rem;
  padding: 0.25rem;
  border: 1px solid var(--border);
  border-radius: 1rem;
  background: var(--surface);
}

.language-toggle button {
  min-height: 44px;
  padding: 0.4rem 0.8rem;
  border: 0;
  border-radius: 0.7rem;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 600;
}

.language-toggle button:hover {
  background: var(--soft);
  color: var(--text);
}

.language-toggle button[aria-pressed="true"] {
  background: var(--peach);
  color: #432d22;
}

.site-main {
  display: grid;
  gap: 2rem;
}

.card {
  border: 1px solid var(--border);
  border-radius: 1.75rem;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.hero {
  display: grid;
  align-items: center;
  gap: 2rem;
  padding: clamp(1.5rem, 4vw, 3rem);
}

.hero-art {
  display: grid;
  place-items: center;
  padding: 1rem;
}

.hero-icon {
  width: clamp(144px, 24vw, 256px);
  border-radius: 24%;
  box-shadow: 0 12px 32px rgb(107 74 58 / 10%);
}

.eyebrow {
  margin-bottom: 0.7rem;
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 600;
}

.subtitle {
  margin-bottom: 1.1rem;
  color: var(--brown);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  font-weight: 600;
}

.intro {
  max-width: 39rem;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.25rem 0;
  padding: 0;
  list-style: none;
}

.chips li {
  padding: 0.3rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--soft);
  color: var(--brown);
  font-size: 0.85rem;
  font-weight: 600;
}

.status {
  max-width: 40rem;
  color: var(--muted);
  font-size: 0.875rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.4rem;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.2rem;
  border: 1px solid transparent;
  border-radius: 0.9rem;
  font-weight: 700;
  line-height: 1.5;
  text-align: center;
  text-decoration: none;
}

.button:hover {
  text-decoration: underline;
}

.button-primary {
  border-color: var(--peach);
  background: var(--peach);
  color: #432d22;
}

.button-secondary {
  border-color: var(--border);
  background: var(--surface);
  color: var(--brown);
}

.gallery-section {
  padding-block: 0.75rem;
}

.gallery-section h2 {
  padding-inline: 0.25rem;
}

.sticker-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(0.4rem, 1.5vw, 1rem);
  margin: 0;
  padding: 0;
  list-style: none;
}

.sticker-grid li {
  min-width: 0;
  overflow: hidden;
  padding: clamp(0.15rem, 0.7vw, 0.6rem);
  border: 1px solid var(--border);
  border-radius: clamp(0.85rem, 2vw, 1.4rem);
  background: var(--surface);
  box-shadow: 0 3px 12px rgb(107 74 58 / 3%);
}

.sticker-grid img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
}

.text-section {
  padding: clamp(1.4rem, 4vw, 2.5rem);
}

.text-section > p,
.text-section > ul,
.text-section > ol {
  max-width: 52rem;
}

.text-section > :last-child {
  margin-bottom: 0;
}

.steps {
  margin: 0 0 1.5rem;
  padding-inline-start: 1.75rem;
}

.steps li {
  padding-inline-start: 0.4rem;
  margin-bottom: 0.9rem;
}

.steps li::marker {
  color: var(--brown);
  font-weight: 700;
}

.note {
  padding: 0.9rem 1rem;
  border-inline-start: 3px solid var(--peach);
  border-radius: 0 0.75rem 0.75rem 0;
  background: var(--soft);
  color: var(--muted);
  font-size: 0.925rem;
}

.contact-line a,
.site-footer a,
body.doc a {
  overflow-wrap: anywhere;
}

.faq {
  margin-top: 1.5rem;
  border-top: 1px solid var(--border);
}

details {
  border-bottom: 1px solid var(--border);
}

summary {
  padding: 1rem 0.25rem;
  color: var(--brown);
  font-weight: 650;
  cursor: pointer;
}

summary::marker {
  color: var(--link);
}

details p {
  max-width: 48rem;
  padding: 0 0.25rem 0.25rem;
}

.privacy-list {
  margin-block: 0 1.25rem;
}

.privacy-list li {
  margin-bottom: 0.65rem;
  padding-inline-start: 0.25rem;
}

.small {
  font-size: 0.875rem;
}

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

footer {
  color: var(--muted);
  font-size: 0.875rem;
  text-align: center;
}

.site-footer,
body.doc footer {
  padding-block: 2.5rem 2rem;
}

footer p {
  margin: 0.6rem 0;
}

footer a {
  display: inline-block;
  padding-block: 0.25rem;
}

.footer-contact {
  white-space: normal;
}

/* Shared styling for the standalone privacy document. */
body.doc {
  padding: clamp(1rem, 4vw, 3rem) 1rem 0;
}

body.doc main {
  width: 100%;
  max-width: 42rem;
  margin: 0 auto;
  padding: clamp(1.4rem, 5vw, 3rem);
  border: 1px solid var(--border);
  border-radius: 1.5rem;
  background: var(--surface);
  box-shadow: var(--shadow);
  line-height: 1.85;
}

body.doc h1 {
  margin-block: 0.75rem 1.5rem;
  font-size: clamp(1.8rem, 5vw, 2.4rem);
}

body.doc h2 {
  margin-block: 2rem 0.8rem;
  font-size: 1.25rem;
}

body.doc p {
  margin-bottom: 1.15rem;
}

body.doc ul,
body.doc ol {
  margin-block: 1rem;
}

body.doc li {
  margin-bottom: 0.5rem;
}

hr {
  height: 0;
  margin-block: 2rem;
  border: 0;
  border-top: 1px solid var(--border);
}

.back-link {
  display: inline-block;
  margin-bottom: 1rem;
  padding-block: 0.4rem;
  font-size: 0.925rem;
  font-weight: 600;
}

body.doc footer {
  width: 100%;
  max-width: 42rem;
  margin-inline: auto;
}

@media (min-width: 760px) {
  .hero {
    grid-template-columns: minmax(180px, 0.7fr) minmax(0, 1.7fr);
    gap: 2.5rem;
  }

  .sticker-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .site-main {
    gap: 2.5rem;
  }
}

@media (max-width: 480px) {
  .site-header {
    justify-content: center;
    padding-top: 1rem;
  }

  .brand {
    justify-content: center;
    text-align: center;
  }

  .hero {
    gap: 1rem;
  }

  .hero-art {
    padding-block: 0.25rem 0.75rem;
  }

  .hero-actions .button {
    flex: 1 1 8rem;
  }

  .site-footer {
    padding-inline: 0.5rem;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #241f1c;
    --surface: #302823;
    --soft: #3d3028;
    --text: #fff0de;
    --muted: #d1bba9;
    --brown: #f3d6bb;
    --peach: #f4a98a;
    --border: #5b473a;
    --link: #ffc6a5;
    --focus: #ffc6a5;
    --shadow: 0 8px 28px rgb(0 0 0 / 16%);
  }

  .hero-icon {
    box-shadow: 0 12px 32px rgb(0 0 0 / 18%);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}

.nowrap { white-space: nowrap; }