/* 사이다 수학 · 서비스 이용 가이드 페이지 (site.css 위에 덧씌움) */

/* 서비스별 색: body 클래스로 바꿔요 */
body.g-suk {
  --g-hero: #fff6e5; --g-hero-fg: #3b2f4a;
  --g-acc: #ffb23f; --g-acc-fg: #3b2f4a;
  --g-link: #c43d30; --g-soft: #fff6e5; --g-line: rgba(196, 61, 48, .22);
  --g-btn: #c43d30; --g-btn-fg: #fff;
}
body.g-pago {
  --g-hero: #ebf4ff; --g-hero-fg: #1a202c;
  --g-acc: #2b6cb0; --g-acc-fg: #fff;
  --g-link: #2b6cb0; --g-soft: #ebf4ff; --g-line: rgba(43, 108, 176, .25);
  --g-btn: #2b6cb0; --g-btn-fg: #fff;
}
body.g-ch {
  --g-hero: #0b2545; --g-hero-fg: #fff;
  --g-acc: #f5a524; --g-acc-fg: #0b2545;
  --g-link: #0b2545; --g-soft: #eef3f9; --g-line: rgba(11, 37, 69, .16);
  --g-btn: #f5a524; --g-btn-fg: #0b2545;
}

.g-ch .g-hero .ch-mark { background: var(--ch-gold); color: var(--ch); }

/* ───────── 가이드 첫 화면 ───────── */
.g-hero { background: var(--g-hero); color: var(--g-hero-fg); padding: 36px 0 48px; }
@media (min-width: 900px) { .g-hero { padding: 48px 0 64px; } }
.crumb { font-size: 14px; font-weight: 700; opacity: .75; }
.crumb a { text-decoration: none; }
.crumb a:hover { text-decoration: underline; }
.g-hero .head { display: flex; align-items: center; gap: 14px; margin-top: 22px; }
.g-hero .head img, .g-hero .head .ch-mark { width: 56px; height: 56px; border-radius: 14px; font-size: 28px; }
.g-hero .head .kind { font-size: 14px; font-weight: 800; opacity: .8; }
.g-hero h1 { margin-top: 2px; font-size: clamp(34px, 6vw, 56px); font-weight: 900; line-height: 1.1; letter-spacing: -0.02em; }
.g-suk .g-hero h1 { font-family: "Jua", var(--font); font-weight: 400; letter-spacing: 0; }
.g-hero .sub { margin-top: 16px; max-width: 680px; font-size: clamp(17px, 2.2vw, 20px); font-weight: 700; line-height: 1.6; }
.facts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-top: 28px; max-width: 900px; }
@media (min-width: 760px) { .facts { grid-template-columns: repeat(4, 1fr); } }
.fact { padding: 14px 16px; border-radius: var(--r); background: rgba(255, 255, 255, .75); border: 1px solid var(--g-line); }
.g-ch .fact { background: rgba(255, 255, 255, .06); border-color: rgba(255, 255, 255, .16); }
.fact span { display: block; font-size: 12.5px; font-weight: 800; opacity: .72; }
.fact b { display: block; margin-top: 3px; font-size: 16px; font-weight: 900; line-height: 1.35; }
.g-hero .ctas { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.btn-g { background: var(--g-btn); color: var(--g-btn-fg); }
.g-ch .g-hero .btn-line { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .55); }

/* ───────── 가이드 바꾸기 ───────── */
.gtabs {
  position: sticky; top: 64px; z-index: 40;
  background: rgba(251, 250, 245, .94);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line-2);
}
.gtabs .wrap { display: flex; align-items: center; gap: 6px; overflow-x: auto; padding-top: 10px; padding-bottom: 10px; scrollbar-width: none; }
.gtabs .wrap::-webkit-scrollbar { display: none; }
.gtabs .lbl { flex: none; margin-right: 6px; font-size: 13px; font-weight: 800; color: var(--muted); }
.gtabs a {
  flex: none; display: inline-flex; align-items: center; gap: 8px;
  min-height: 40px; padding: 0 14px;
  border-radius: var(--r); border: 1.5px solid transparent;
  text-decoration: none; font-size: 14.5px; font-weight: 800; color: var(--ink-2);
}
.gtabs a img, .gtabs a .ch-mark { width: 22px; height: 22px; border-radius: 6px; font-size: 12px; }
.gtabs a:hover { background: #fff; }
.gtabs a[aria-current="page"] { background: #fff; border-color: var(--ink); color: var(--ink); }

/* ───────── 본문: 목차 + 내용 ───────── */
.g-body { display: grid; gap: 32px; padding-top: 48px; padding-bottom: 8px; }
@media (min-width: 1000px) { .g-body { grid-template-columns: 210px minmax(0, 1fr); gap: 56px; padding-top: 64px; } }
.toc { display: none; }
@media (min-width: 1000px) { .toc { display: block; position: sticky; top: 140px; align-self: start; } }
.toc p { margin-bottom: 10px; font-size: 13px; font-weight: 800; color: var(--muted); }
.toc ol { list-style: none; margin: 0; padding: 0; display: grid; border-left: 2px solid var(--line); }
.toc a { display: block; margin-left: -2px; padding: 7px 0 7px 14px; border-left: 2px solid transparent; text-decoration: none; font-size: 14.5px; font-weight: 700; color: var(--muted); }
.toc a:hover, .toc a.on { color: var(--ink); border-left-color: var(--g-acc); }

.g-sec { scroll-margin-top: 140px; padding-bottom: 56px; margin-bottom: 56px; border-bottom: 1px solid var(--line-2); }
.g-sec:last-child { margin-bottom: 0; border-bottom: 0; }
.g-revs { margin-top: 24px; columns: 1; }
@media (min-width: 640px) { .g-revs { columns: 2; } }
.g-sec > .k { font-size: 13px; font-weight: 900; letter-spacing: .06em; color: var(--g-link); }
.g-sec > h2 { margin-top: 8px; font-size: clamp(26px, 3.6vw, 36px); font-weight: 900; line-height: 1.25; letter-spacing: -0.02em; }
.g-sec > .lead { margin-top: 12px; max-width: 700px; color: var(--body); font-size: 17px; }

/* 화면에 보이는 버튼·메뉴 이름 */
.ui {
  display: inline-block;
  padding: 0 7px;
  margin: 0 1px;
  border-radius: 6px;
  background: #fff;
  border: 1.5px solid rgba(20, 36, 39, .22);
  font-size: .9em;
  font-weight: 800;
  color: var(--ink);
  line-height: 1.6;
}

/* 역할 */
.roles { display: grid; gap: 12px; margin-top: 24px; }
@media (min-width: 760px) { .roles { grid-template-columns: repeat(3, 1fr); } }
.role { padding: 20px; border-radius: var(--r); background: #fff; border: 1px solid var(--line); }
.role.main { border: 2px solid var(--g-acc); }
.role .who { display: flex; align-items: center; gap: 10px; font-size: 16px; font-weight: 900; }
.role .who i { width: 32px; height: 32px; display: grid; place-items: center; border-radius: var(--r); background: var(--g-soft); font-style: normal; font-size: 17px; }
.role ul { margin: 12px 0 0; padding-left: 18px; display: grid; gap: 5px; color: var(--body); font-size: 15px; }

/* 단계 */
.gsteps { list-style: none; margin: 28px 0 0; padding: 0; counter-reset: gs; }
.gsteps > li { position: relative; display: grid; grid-template-columns: 44px minmax(0, 1fr); gap: 16px; padding-bottom: 30px; counter-increment: gs; }
.gsteps > li::before {
  content: counter(gs);
  position: relative; z-index: 1;
  width: 44px; height: 44px;
  display: grid; place-items: center;
  border-radius: var(--r);
  background: var(--g-acc); color: var(--g-acc-fg);
  font-size: 18px; font-weight: 900;
}
.gsteps > li::after { content: ""; position: absolute; left: 21px; top: 44px; bottom: 0; width: 2px; background: var(--line); }
.gsteps > li:last-child { padding-bottom: 0; }
.gsteps > li:last-child::after { display: none; }
.gsteps h3 { padding-top: 9px; font-size: 19px; font-weight: 900; line-height: 1.4; }
.gsteps p { margin-top: 6px; color: var(--body); font-size: 15.5px; }
.gsteps ul { margin: 8px 0 0; padding-left: 18px; display: grid; gap: 4px; color: var(--body); font-size: 15.5px; }

/* 하루 흐름 */
.day { display: grid; gap: 10px; margin-top: 24px; counter-reset: d; }
@media (min-width: 760px) { .day { grid-template-columns: repeat(var(--n, 4), 1fr); } }
.day > div { padding: 18px; border-radius: var(--r); background: var(--g-soft); border: 1px solid var(--g-line); counter-increment: d; }
.day .t { font-size: 12.5px; font-weight: 900; color: var(--g-link); }
.day b { display: block; margin-top: 6px; font-size: 17px; font-weight: 900; line-height: 1.35; }
.day p { margin-top: 6px; font-size: 14.5px; color: var(--body); }

/* 기능 카드 */
.feats { display: grid; gap: 12px; margin-top: 24px; }
@media (min-width: 760px) { .feats { grid-template-columns: repeat(2, 1fr); } }
.feat { padding: 20px; border-radius: var(--r); background: #fff; border: 1px solid var(--line); }
.feat h3 { font-size: 17px; font-weight: 900; line-height: 1.4; }
.feat p { margin-top: 6px; font-size: 15px; color: var(--body); }
.feat ul { margin: 8px 0 0; padding-left: 18px; font-size: 15px; color: var(--body); display: grid; gap: 3px; }

/* 표 */
.gtable { width: 100%; margin-top: 20px; border-collapse: separate; border-spacing: 0; border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; background: #fff; font-size: 15px; }
.gtable th, .gtable td { padding: 12px 14px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line-2); }
.gtable tr:last-child th, .gtable tr:last-child td { border-bottom: 0; }
.gtable th { width: 34%; background: var(--g-soft); font-weight: 800; }
.gtable td { color: var(--body); }

/* 팁·주의 */
.tip, .warn { margin-top: 20px; padding: 16px 18px; border-radius: var(--r); font-size: 15px; font-weight: 600; }
.tip { background: var(--mint-soft); color: #0b5f56; border: 1px solid rgba(37, 201, 174, .35); }
.warn { background: #fff8e1; color: #6e4a06; border: 1px solid rgba(245, 165, 36, .45); }
.tip b, .warn b { font-weight: 900; }
.tip ul, .warn ul { margin: 6px 0 0; padding-left: 18px; display: grid; gap: 3px; }

/* 가격 */
.prices { display: grid; gap: 12px; margin-top: 24px; }
@media (min-width: 760px) { .prices { grid-template-columns: repeat(var(--n, 2), 1fr); } }
.price { padding: 22px; border-radius: var(--r); background: #fff; border: 1px solid var(--line); }
.price.hot { border: 2px solid var(--g-acc); }
.price .nm { font-size: 14px; font-weight: 800; color: var(--muted); }
.price .amt { margin-top: 6px; font-size: 28px; font-weight: 900; letter-spacing: -0.02em; }
.price .amt small { font-size: .55em; font-weight: 800; margin-left: 2px; }
.price p { margin-top: 8px; font-size: 14.5px; color: var(--body); }

/* 다른 가이드 */
.next { display: grid; gap: 12px; margin-top: 18px; }
@media (min-width: 760px) { .next { grid-template-columns: repeat(2, 1fr); } }
.next a { display: flex; align-items: center; gap: 14px; padding: 18px; border-radius: var(--r); background: #fff; border: 1px solid var(--line); text-decoration: none; font-size: 17px; font-weight: 900; transition: border-color .15s ease, transform .15s ease; }
.next a:hover { border-color: var(--ink); transform: translateY(-1px); }
.next a img, .next a .ch-mark { flex: none; width: 40px; height: 40px; border-radius: 10px; font-size: 20px; }
.next a small { display: block; font-size: 13.5px; font-weight: 700; color: var(--muted); }

@media (max-width: 480px) {
  .gtabs .lbl { display: none; }
  .gtabs a { padding: 0 10px; font-size: 14px; }
  .gtable th { width: 38%; }
}