/* 또르르 — 연못 물빛 바탕 + 한지 타일 + 물방울 파랑.
   색은 앱 아이콘(app-store/icon/icon-1024.png)과 같은 디자인 시안 팔레트다. 사이트용 색을 새로 짓지 않는다.
   구조·클래스 이름은 products/solomon · smashlab 과 같다. */
@font-face {
  font-family: "Gowun Batang";
  src: url("./fonts/GowunBatang-Bold.woff2") format("woff2");
  font-weight: 700;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Sans KR";
  src: url("./fonts/IBMPlexSansKR-Regular.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Sans KR";
  src: url("./fonts/IBMPlexSansKR-SemiBold.woff2") format("woff2");
  font-weight: 600;
  font-display: swap;
}

:root {
  --bg: #e9efea;            /* 배경 — 연못 물빛 */
  --surface: #f2e7cf;       /* 한지 — 아이콘 바탕 · 타일 윗면 */
  --surface-soft: #f2e7cf;
  --accent: #3a7ca5;        /* 강조 — 물방울. 글자색 X(대비 3.91), 면·선 전용 */
  --accent-strong: #1d4a66; /* 진한 — 물방울 외곽선. 링크·보조 글자·주 버튼 */
  --ink: #1f2a2e;           /* 잉크 — 본문 */
  --muted: #1d4a66;         /* 보조 글자 = 진한(bg 대비 8.09) */
  --bead: #e3b04b;          /* 방울 — 수집물 */
  --line: rgb(29 74 102 / 22%);
  --shadow: 0 6px 0 var(--accent-strong); /* 번짐 없는 그림자 = 타일 두께 */
  --radius: 14px;
  --max-width: 1040px;
  --display: "Gowun Batang", "Nanum Myeongjo", serif;
  --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;
  font-family: var(--body);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.7;
  word-break: keep-all;
}

a { color: var(--accent-strong); text-underline-offset: 3px; }
img { max-width: 100%; }

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ── 헤더 ─────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgb(233 239 234 / 92%);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--display);
  font-weight: 700;
  font-size: 19px;
  color: var(--ink);
  text-decoration: none;
}
.brand img { width: 32px; height: 32px; border-radius: 8px; border: 2px solid var(--accent-strong); }
.site-nav { display: flex; gap: 20px; font-size: 14px; }
.site-nav a { color: var(--muted); text-decoration: none; }
.site-nav a:hover { text-decoration: underline; }

/* ── 히어로 ───────────────────────────────────────── */
.hero { padding: 64px 0 56px; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 48px;
  align-items: center;
}
.badge {
  display: inline-block;
  border: 2px solid var(--accent-strong);
  border-radius: 999px;
  padding: 4px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  background: var(--bead);
  margin-bottom: 22px;
}
.hero h1 {
  margin: 0 0 18px;
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(38px, 6.4vw, 64px);
  line-height: 1.2;
  letter-spacing: -1px;
}
.hero h1 em {
  font-style: normal;
  color: var(--accent-strong);
  background: linear-gradient(transparent 68%, rgb(58 124 165 / 28%) 68%);
}
.hero p { margin: 0 0 28px; max-width: 560px; font-size: 17px; }
.hero-art img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 380px;
  margin: 0 auto;
  border-radius: 28px;
  border: 3px solid var(--accent-strong);
  box-shadow: 0 10px 0 var(--accent-strong);
}

.cta-row { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border: 2px solid var(--accent-strong);
  color: var(--ink);
  background: var(--surface);
  box-shadow: 0 4px 0 var(--accent-strong);
  transition: transform 0.08s ease-out, box-shadow 0.08s ease-out;
}
.btn-primary { background: var(--accent-strong); color: var(--surface); }
.btn:hover { transform: translateY(2px); box-shadow: 0 2px 0 var(--accent-strong); }

/* ── 섹션 ─────────────────────────────────────────── */
section { padding: 56px 0; }
section + section {
  /* 아이콘의 물결선을 구분선으로 쓴다. */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='16' viewBox='0 0 240 16'%3E%3Cpath d='M0 8 C40 0 80 0 120 8 S200 16 240 8' fill='none' stroke='%233a7ca5' stroke-opacity='.35' stroke-width='3'/%3E%3C/svg%3E");
  background-repeat: repeat-x;
  background-position: top center;
}
section h2 {
  margin: 0 0 8px;
  font-family: var(--display);
  font-weight: 700;
  font-size: 30px;
  letter-spacing: -0.5px;
}
section .lead { margin: 0 0 30px; color: var(--muted); }

/* 한 판의 흐름 — 타일이 지그재그로 이어진다. */
.loop { display: grid; gap: 14px; padding: 0; margin: 0; list-style: none; counter-reset: step; }
.loop-step {
  position: relative;
  width: min(100%, 620px);
  border: 2px solid var(--accent-strong);
  border-radius: var(--radius);
  padding: 18px 22px 18px 64px;
  background: var(--surface);
  box-shadow: var(--shadow);
  counter-increment: step;
}
.loop-step:nth-child(even) { justify-self: end; }
.loop-step::before {
  content: counter(step);
  position: absolute;
  left: 18px;
  top: 18px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 600;
  font-size: 14px;
  color: var(--surface);
  background: var(--accent);
  border: 2px solid var(--accent-strong);
}
.loop-step strong { display: block; font-size: 17px; margin-bottom: 2px; }
.loop-step span { color: var(--muted); font-size: 15px; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}
.feature-card {
  border: 2px solid var(--accent-strong);
  border-radius: var(--radius);
  padding: 22px 24px;
  background: var(--surface);
  box-shadow: var(--shadow);
}
.feature-card h3 { margin: 0 0 6px; font-family: var(--display); font-weight: 700; font-size: 20px; }
.feature-card p { margin: 0; color: var(--muted); font-size: 15px; }

.principles { display: grid; gap: 12px; padding: 0; margin: 0; list-style: none; }
.principle {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  border-bottom: 1px solid var(--line);
  padding: 12px 2px 16px;
}
.principle::before {
  /* 방울 — 길 위의 수집물 */
  content: "";
  flex-shrink: 0;
  width: 14px;
  height: 14px;
  margin-top: 7px;
  border-radius: 50%;
  background: var(--bead);
  box-shadow: 0 0 0 2px var(--accent-strong);
}
.principle strong { display: block; }
.principle span { color: var(--muted); font-size: 15px; }

/* ── FAQ · 폼 ─────────────────────────────────────── */
.faq-list details {
  border: 2px solid var(--accent-strong);
  border-radius: var(--radius);
  padding: 14px 18px;
  background: var(--surface);
  margin-bottom: 12px;
}
.faq-list summary { cursor: pointer; font-weight: 600; }
.faq-list p { color: var(--muted); margin: 10px 0 2px; }

.contact-card {
  border: 2px solid var(--accent-strong);
  border-radius: var(--radius);
  padding: 24px;
  background: var(--surface);
  box-shadow: var(--shadow);
  max-width: 600px;
}
.support-form { display: grid; gap: 14px; }
.support-form label { display: grid; gap: 6px; font-size: 14px; font-weight: 600; }
.support-form input,
.support-form select,
.support-form textarea {
  background: var(--bg);
  border: 2px solid var(--accent-strong);
  border-radius: 10px;
  color: var(--ink);
  padding: 10px 12px;
  font: inherit;
  font-weight: 400;
  font-size: 15px;
}
.support-form button {
  justify-self: start;
  border: 2px solid var(--accent-strong);
  background: var(--accent-strong);
  color: var(--surface);
  border-radius: 999px;
  padding: 11px 24px;
  font: inherit;
  font-weight: 600;
  box-shadow: 0 4px 0 var(--ink);
  cursor: pointer;
}
#form-status { margin: 0; font-size: 14px; color: var(--muted); }
.form-note { color: var(--muted); font-size: 14px; margin: 18px 0 0; }

/* ── 방침 ─────────────────────────────────────────── */
.policy {
  background: var(--surface);
  border: 2px solid var(--accent-strong);
  border-radius: var(--radius);
  padding: 8px 32px 28px;
}
.policy h2 { margin-top: 34px; font-size: 22px; }
.policy h3 { margin: 22px 0 6px; font-size: 16px; }
.policy p, .policy li { color: var(--ink); }
.policy ul { padding-left: 20px; }
.policy table { width: 100%; border-collapse: collapse; font-size: 14px; margin: 10px 0 14px; }
.policy th, .policy td { border-bottom: 1px solid var(--line); padding: 10px 8px; text-align: left; vertical-align: top; }
.policy th { color: var(--muted); font-weight: 600; }
.policy code { font-size: 13px; background: var(--bg); padding: 1px 5px; border-radius: 4px; }
.breadcrumb { font-size: 13px; color: var(--muted); margin: 0 0 10px; }
.breadcrumb a { color: var(--muted); }
.page-hero { padding: 48px 0 24px; }
.page-hero h1 { margin: 0 0 8px; font-family: var(--display); font-weight: 700; font-size: clamp(30px, 5vw, 44px); }
.page-hero p { margin: 0; color: var(--muted); }

/* ── 푸터 ─────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 30px 0 46px;
  color: var(--muted);
  font-size: 13px;
}
.site-footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.site-footer a { color: var(--muted); }

@media (max-width: 760px) {
  .hero { padding: 40px 0 40px; }
  .hero-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero-art { order: -1; }
  .hero-art img { max-width: 220px; }
  .loop-step { width: 100%; }
  .site-nav { gap: 14px; }
  .policy { padding: 4px 18px 22px; }
  .policy table { font-size: 13px; }
  .policy td { overflow-wrap: anywhere; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn { transition: none; }
}