/* 그레이딩 소개 페이지. 색은 앱(app/src/theme.ts)과 같게: 아이보리 바탕, 코랄 레드 버튼, 색연필 O(녹색)·X(빨강)·?(주황) */
:root {
  --bg: #FFF8F1;
  --card: #FFFFFF;
  --line: #F1E4D8;
  --text: #2B2B2B;
  --sub: #7A6F66;
  --faint: #B3A79C;
  --coral: #F4584B;
  --coral-dark: #D9443A;
  --coral-soft: #FDE7E2;
  --pencil: #E5322D;
  --green: #137A3A;
  --orange: #F29A1F;
  --navy: #24305E;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Pretendard", "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  word-break: keep-all;
  overflow-wrap: anywhere;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--coral-dark); }
h1, h2, h3 { color: var(--navy); line-height: 1.3; margin: 0 0 .5em; }
h1 { font-size: clamp(34px, 7vw, 54px); letter-spacing: -0.02em; }
h2 { font-size: clamp(24px, 4.5vw, 32px); letter-spacing: -0.01em; }
h3 { font-size: 19px; }
p { margin: 0 0 1em; }

.wrap { max-width: 1040px; margin: 0 auto; padding: 0 16px; }

.top {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 16px;
  background: rgba(255, 248, 241, .92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.brand img { width: 120px; }

.btn {
  display: inline-block;
  background: var(--coral); color: #fff;
  border: 0; border-radius: 14px;
  padding: 14px 24px;
  font: inherit; font-weight: 700; text-decoration: none;
  cursor: pointer;
  box-shadow: 0 4px 0 var(--coral-dark);
  transition: transform .08s, box-shadow .08s;
}
.btn:hover { background: var(--coral-dark); }
.btn:active { transform: translateY(3px); box-shadow: 0 1px 0 var(--coral-dark); }
.btn:disabled { opacity: .6; cursor: default; }
.btn.small { padding: 8px 14px; font-size: 15px; box-shadow: none; }
.btn.wide { width: 100%; }

.o { color: var(--green); }
.x { color: var(--pencil); }
.q { color: var(--orange); }

/* 첫 화면 */
.hero {
  display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: center;
  padding-top: 48px; padding-bottom: 56px;
}
.tag {
  display: inline-block; margin-bottom: 14px;
  background: var(--coral-soft); color: var(--coral-dark);
  font-weight: 700; font-size: 14px;
  border-radius: 999px; padding: 4px 12px;
}
.pen {
  color: var(--pencil);
  background: linear-gradient(transparent 62%, rgba(244, 88, 75, .18) 62%);
}
.lead { font-size: 19px; color: var(--text); max-width: 32em; }
.note { color: var(--sub); font-size: 14px; margin-top: 14px; }
.phone {
  margin: 0; justify-self: center;
  width: min(300px, 80vw);
  border: 8px solid #1F1B18; border-radius: 32px; overflow: hidden;
  box-shadow: 0 20px 40px rgba(60, 30, 10, .18);
  transform: rotate(2deg);
}

/* 쓰는 법 */
.steps { padding-top: 32px; padding-bottom: 32px; }
.steps ol {
  list-style: none; margin: 24px 0 0; padding: 0;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
}
.steps li, .card {
  background: var(--card); border: 1px solid var(--line); border-radius: 18px;
  padding: 22px;
}
.steps li p, .card p { margin: 0; color: var(--sub); font-size: 16px; }
.num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; margin-bottom: 10px;
  border: 2.5px solid var(--pencil); border-radius: 50%;
  color: var(--pencil); font-weight: 800;
}

.points { padding-top: 32px; padding-bottom: 32px; }
.grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 24px; }

/* 신청 */
.join { padding-top: 32px; padding-bottom: 56px; scroll-margin-top: 70px; }
.join-box {
  display: grid; grid-template-columns: 1fr 1.2fr;
  background: var(--card); border: 1px solid var(--line); border-radius: 24px; overflow: hidden;
}
.join-img { width: 100%; height: 100%; object-fit: cover; }
.join-form { padding: 32px; }
.join-form > p { color: var(--sub); }
form label[for], legend { display: block; font-weight: 700; font-size: 15px; margin-bottom: 6px; }
input[type=email] {
  width: 100%; font: inherit; font-size: 17px;
  padding: 12px 14px; border: 1.5px solid var(--line); border-radius: 12px; background: var(--bg);
}
input[type=email]:focus { outline: none; border-color: var(--coral); background: #fff; }
fieldset { border: 0; padding: 0; margin: 18px 0; }
.pick {
  display: inline-flex; align-items: center; gap: 6px; margin-right: 18px;
  font-size: 16px; cursor: pointer;
}
input[type=radio], input[type=checkbox] { accent-color: var(--coral); width: 18px; height: 18px; }
.agree { display: flex; gap: 8px; align-items: flex-start; font-size: 14px; color: var(--sub); margin-bottom: 18px; cursor: pointer; }
.agree input { margin-top: 3px; flex: none; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.msg { min-height: 1.6em; margin: 12px 0 0; font-weight: 700; }
.msg.ok { color: var(--green); }
.msg.err { color: var(--pencil); }

/* 아래 */
.foot { padding-top: 24px; padding-bottom: 40px; border-top: 1px solid var(--line); color: var(--sub); font-size: 14px; }
.foot p { margin: 0 0 4px; }
.legal { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 10px; }
.legal a { color: var(--text); font-weight: 700; text-decoration: none; }
.legal a:hover { text-decoration: underline; }
.faint { color: var(--faint); }

/* 약관 페이지 */
.doc { max-width: 760px; padding-top: 32px; padding-bottom: 48px; }
.doc h1 { font-size: clamp(28px, 5vw, 38px); }
.doc h2 { font-size: 21px; margin-top: 2em; }
.doc .meta { color: var(--sub); font-size: 14px; }
.doc table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 8px 0 16px; display: block; overflow-x: auto; }
.doc th, .doc td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; vertical-align: top; }
.doc th { background: var(--coral-soft); white-space: nowrap; }
.doc li { margin-bottom: 4px; }

@media (max-width: 760px) {
  body { font-size: 16px; }
  .hero { grid-template-columns: 1fr; gap: 32px; padding-top: 28px; text-align: left; }
  .steps ol, .grid { grid-template-columns: 1fr; }
  .join-box { grid-template-columns: 1fr; }
  .join-img { height: 180px; }
  .join-form { padding: 22px 18px; }
}