/* 비틀퍼즐 — 앱 lib/core/design_system/app_theme.dart 팔레트(고정 라이트).
   구조는 products/jellymon/assets/styles.css 의 카드형 컴포넌트를 빌리고 :root 값만 앱 것으로 교체.
   대비(WCAG): ink/paper 12.6 · inkSoft/paper 6.2 · paper/choco 10.6 · mintGlow/choco 9.8 · choco/mint 7.1.
   mintDeep(#2F8F7E)는 paper 위 3.4:1 이라 글자에 쓰지 않고 선·장식에만 쓴다. */

@font-face {
  font-family: "Gowun Batang";
  src: url("./fonts/GowunBatang-Bold-subset.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Sans KR";
  src: url("./fonts/IBMPlexSansKR-Regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Sans KR";
  src: url("./fonts/IBMPlexSansKR-Bold.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: light;
  --bg: #f4efe6;            /* paper */
  --ink: #3b241a;           /* ink */
  --muted: #6b5347;         /* inkSoft */
  --choco: #4a2f24;         /* choco — 아이콘 바탕 */
  --accent: #8fd3c1;        /* mint */
  --accent-strong: #2f8f7e; /* mintDeep — 장식 전용 */
  --mint-glow: #cdede4;     /* mintGlow */
  --surface: #fffbf4;       /* cardFace */
  --surface-soft: #efe7da;
  --slot: #b9a99c;          /* slotLine — 거울선 */
  --sun: #c8452f;           /* 아이콘 해 카드 */
  --line: rgb(59 36 26 / 14%);
  --shadow: 0 3px 0 rgb(74 47 36 / 18%);
  --font-display: "Gowun Batang", "Nanum Myeongjo", serif;
  --font-body: "IBM Plex Sans KR", -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.65;
  word-break: keep-all;
  overflow-wrap: break-word;
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  font-weight: 700;
}

a {
  color: var(--ink);
  text-decoration-color: var(--accent-strong);
  text-underline-offset: 3px;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible,
select:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--accent-strong);
  outline-offset: 3px;
}

.site-header {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
  padding: 18px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  text-decoration: none;
  white-space: nowrap;
}

.brand img {
  width: 30px;
  height: 30px;
  border-radius: 8px;
}

.site-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px 18px;
}

.site-nav a {
  color: var(--muted);
  font-size: 14px;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--accent-strong);
}

main {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
}

/* 히어로 — 아이콘처럼 초코 판 위에 점선 거울선 */
.hero {
  position: relative;
  overflow: hidden;
  margin-top: 8px;
  padding: 56px 20px 48px;
  text-align: center;
  background: var(--choco);
  color: var(--surface);
  border-radius: 24px;
  border-top: 0;
}

.hero::before {
  content: "";
  position: absolute;
  top: 16px;
  height: 150px; /* 아이콘 뒤까지만 — 본문 글자 위로는 지나가지 않게 */
  left: 50%;
  width: 0;
  border-left: 4px dashed rgb(185 169 156 / 45%);
  transform: translateX(-50%);
  pointer-events: none;
}

.hero > * {
  position: relative;
}

.hero img.hero-icon {
  width: 112px;
  height: 112px;
  border-radius: 26px;
  display: block;
  margin: 0 auto 22px;
  border: 3px solid var(--surface);
}

.hero h1 {
  font-size: clamp(32px, 6vw, 52px);
  line-height: 1.2;
  margin: 0 0 16px;
  color: var(--surface);
}

.hero p.lead {
  color: var(--mint-glow);
  font-size: clamp(16px, 2.4vw, 19px);
  max-width: 620px;
  margin: 0 auto 28px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: var(--choco);
  border-radius: 999px;
  padding: 5px 16px;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 18px;
}

.cta-row {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 700;
  font-size: 15px;
}

.btn-primary {
  background: var(--accent);
  color: var(--choco);
  box-shadow: 0 3px 0 var(--accent-strong);
}

.btn-primary:hover {
  background: var(--mint-glow);
}

.btn-ghost {
  background: transparent;
  color: var(--surface);
  border: 2px solid var(--surface);
}

.btn-ghost:hover {
  background: rgb(255 251 244 / 10%);
}

section {
  padding: 44px 0;
  border-top: 1px solid var(--line);
}

.hero + section {
  border-top: 0;
}

section h2 {
  font-size: clamp(24px, 3.4vw, 30px);
  line-height: 1.3;
  margin: 0 0 8px;
}

section > p.section-lead {
  color: var(--muted);
  max-width: 640px;
  margin: 0 0 28px;
}

/* 거울 예시 — 짝이 빠진 뒤 남은 카드가 좌우로 뒤바뀌는 모습 */
.mirror-demo {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 18px;
  background: var(--surface);
  border: 2px solid var(--choco);
  border-radius: 18px;
  padding: 24px 20px;
  box-shadow: var(--shadow);
}

.mirror-demo figcaption {
  grid-column: 1 / -1;
  color: var(--muted);
  font-size: 13.5px;
  text-align: center;
}

.board {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.board-label {
  grid-column: 1 / -1;
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
  text-align: center;
  margin-bottom: 4px;
}

.pcard {
  aspect-ratio: 3 / 4;
  border-radius: 8px;
  border: 2px solid var(--choco);
  background: var(--surface);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: clamp(16px, 3vw, 22px);
  color: var(--choco);
  line-height: 1;
}

.pcard.gone {
  border-style: dashed;
  border-color: var(--slot);
  background: transparent;
}

.pcard.sun {
  color: var(--sun);
}

.pcard.mint {
  background: var(--accent);
}

.mirror-arrow {
  font-size: 22px;
  color: var(--choco);
  text-align: center;
}

.loop {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 14px;
}

.loop-step {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px;
}

.loop-step .num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  background: var(--choco);
  color: var(--surface);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 10px;
}

.loop-step h3 {
  font-size: 17px;
  margin: 0 0 6px;
}

.loop-step p {
  color: var(--muted);
  font-size: 14px;
  margin: 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.feature-card {
  background: var(--surface);
  border: 2px solid var(--choco);
  border-radius: 16px;
  padding: 22px;
  box-shadow: var(--shadow);
}

.feature-card h3 {
  font-size: 18px;
  margin: 0 0 8px;
}

.feature-card p {
  color: var(--muted);
  font-size: 14.5px;
  margin: 0;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.chips span {
  background: var(--mint-glow);
  border-radius: 999px;
  padding: 3px 11px;
  font-size: 13px;
  color: var(--ink);
}

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

.principle {
  background: var(--surface-soft);
  border-left: 4px solid var(--accent-strong);
  border-radius: 10px;
  padding: 16px 18px;
}

.principle strong {
  display: block;
  margin-bottom: 4px;
}

.principle span {
  color: var(--muted);
  font-size: 14.5px;
}

.faq-list details {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px 18px;
  margin-bottom: 10px;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 700;
  font-size: 15px;
}

.faq-list p {
  color: var(--ink);
  margin: 10px 0 0;
  font-size: 14.5px;
}

.contact-card {
  background: var(--surface);
  border: 2px solid var(--choco);
  border-radius: 16px;
  padding: 24px;
  text-align: center;
  box-shadow: var(--shadow);
}

.contact-card a {
  font-size: 18px;
  font-weight: 700;
}

.support-form {
  background: var(--surface);
  border: 2px solid var(--choco);
  border-radius: 16px;
  padding: 24px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 16px;
  max-width: 480px;
  margin: 0 auto;
}

.support-form label {
  display: grid;
  gap: 6px;
  font-size: 14px;
  color: var(--muted);
}

.support-form select,
.support-form input,
.support-form textarea {
  background: var(--bg);
  border: 1px solid var(--slot);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--ink);
  font-size: 15px;
  font-family: inherit;
}

.support-form button {
  background: var(--choco);
  color: var(--surface);
  border: none;
  border-radius: 12px;
  padding: 12px 22px;
  font-weight: 700;
  font-size: 15px;
  font-family: inherit;
  cursor: pointer;
}

.support-form button:hover {
  background: var(--ink);
}

.support-form button:disabled {
  opacity: 0.6;
  cursor: default;
}

#form-status {
  font-size: 13.5px;
  color: var(--muted);
  min-height: 1.2em;
  margin: 0;
}

.policy h2 {
  margin-top: 36px;
  font-size: clamp(20px, 3vw, 24px);
}

.policy h2:first-of-type {
  margin-top: 0;
}

.policy p,
.policy li {
  color: var(--ink);
  font-size: 15px;
}

.policy .table-wrap {
  overflow-x: auto;
  margin: 12px 0;
}

.policy table {
  width: 100%;
  min-width: 480px;
  border-collapse: collapse;
  font-size: 14px;
  background: var(--surface);
}

.policy th,
.policy td {
  border: 1px solid var(--line);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
  color: var(--ink);
}

.policy th {
  background: var(--mint-glow);
}

.meta-date {
  color: var(--muted);
  font-size: 13.5px;
}

footer {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
  border-top: 1px solid var(--line);
  padding: 28px 0 40px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}

footer a {
  color: var(--muted);
}

/* Breadcrumb — 화면 표시와 BreadcrumbList 스키마를 1:1로 맞춘다. */
.breadcrumb {
  font-size: 13px;
  line-height: 1.5;
}

.breadcrumb ol {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
  padding: 8px 0 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  color: var(--muted);
}

.breadcrumb li + li::before {
  content: "/";
  margin-right: 6px;
}

.breadcrumb a {
  color: inherit;
}

@media (max-width: 560px) {
  .mirror-demo {
    grid-template-columns: 1fr;
  }

  .mirror-arrow {
    transform: rotate(90deg);
  }

  .hero {
    padding: 44px 16px 40px;
  }
}

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