/* ════════════════════════════════════════════════════════════════
   셀러베이스 — 라이트 에디토리얼(노션풍 단칼럼 리스트). 자체 완결형.
   따뜻한 페이퍼 배경 + 검은 잉크 텍스트 + 버건디 링크/포인트 + 황동 머리표.
   ════════════════════════════════════════════════════════════════ */
:root {
  --paper: #faf8f4;
  --paper-2: #f4f0e8;
  --paper-3: #efe9df;
  --ink: #1c1714;
  --ink-2: #4a423b;
  --muted: #8a8077;
  --faint: #b3a99c;
  --line: #ece6db;
  --line-2: #ddd4c6;
  --burgundy: #6E1423;
  --burgundy-2: #8a2030;
  --rose: #9a3340;
  --brass: #a8895c;
  --brass-soft: #b89b6e;
  --green: #3f7d4f;
  --amber: #9a7a2c;
  --maxw: 760px;
  font-family: "Pretendard", "Pretendard Variable", -apple-system, "Segoe UI", "Noto Sans KR", system-ui, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font-size: 16px; line-height: 1.6; -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: var(--burgundy); }

.sb-wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }

/* ── 공통 머리표 / 강조 ── */
.sb-eyebrow {
  font-size: 11.5px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--brass); font-weight: 700; margin: 0 0 12px;
  display: flex; align-items: center; gap: 9px;
}
.sb-eyebrow::before { content: ""; width: 16px; height: 1px; background: var(--brass-soft); }
.hl { color: var(--burgundy); }
.dot { color: var(--faint); margin: 0 2px; }

/* ── 마스트헤드 ── */
.sb-mast { padding: clamp(46px, 8vw, 84px) 0 28px; border-bottom: 1px solid var(--line); }
.sb-mast-eye { margin-bottom: 16px; }
.sb-title {
  font-size: clamp(31px, 6vw, 50px); line-height: 1.12; letter-spacing: -0.022em;
  font-weight: 800; margin: 0 0 16px; word-break: keep-all;
}
.sb-lede { font-size: clamp(15px, 2.2vw, 18px); color: var(--ink-2); max-width: 56ch; line-height: 1.66; margin: 0 0 18px; word-break: keep-all; }
.sb-meta { font-size: 12.5px; color: var(--muted); margin: 0 0 24px; }
.sb-meta b { color: var(--ink-2); font-weight: 700; font-variant-numeric: tabular-nums; }

/* ── CTA 버튼 ── */
.sb-cta {
  display: inline-flex; align-items: center; gap: 7px; text-decoration: none;
  background: var(--burgundy); color: #fff; font-weight: 700; font-size: 15px;
  padding: 12px 22px; border-radius: 9px; transition: background .14s, transform .14s, box-shadow .14s;
  box-shadow: 0 6px 18px rgba(110,20,35,0.16);
}
.sb-cta:hover { background: var(--burgundy-2); transform: translateY(-1px); box-shadow: 0 10px 24px rgba(110,20,35,0.22); }

/* ── 카테고리 네비(스티키, 슬림) ── */
.sb-nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(250,248,244,0.86); backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line); margin-bottom: 8px;
}
.sb-nav-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 9px 14px;
  display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none; -webkit-overflow-scrolling: touch;
}
.sb-nav-inner::-webkit-scrollbar { display: none; }
.sb-navlink {
  white-space: nowrap; text-decoration: none; color: var(--muted);
  font-size: 13px; font-weight: 600; padding: 6px 11px; border-radius: 7px; transition: all .12s;
}
.sb-navlink:hover { color: var(--burgundy); background: var(--paper-3); }
.sb-navlink.is-active { color: var(--burgundy); background: rgba(110,20,35,0.07); }

/* ── 섹션 ── */
.sb-main { padding-bottom: 30px; }
.sb-section { padding: 30px 0 8px; scroll-margin-top: 60px; }
.sb-section + .sb-section { border-top: 1px solid var(--line); }
.sb-section .sb-eyebrow { margin-bottom: 10px; }
.sb-h2 { font-size: clamp(21px, 3.6vw, 27px); font-weight: 800; letter-spacing: -0.01em; margin: 0 0 5px; display: flex; align-items: center; gap: 9px; }
.sb-emoji { font-size: 0.92em; }
.sb-sub { color: var(--muted); font-size: 14px; margin: 0 0 16px; }
.sb-callout {
  font-size: 13.5px; color: var(--ink-2); line-height: 1.6; margin: 0 0 14px;
  padding: 12px 15px; background: var(--paper-2); border-left: 3px solid var(--brass-soft); border-radius: 0 8px 8px 0;
}

/* ── 리스트(노션식 행) ── */
.sb-list { list-style: none; margin: 0; padding: 0; }
.sb-item { padding: 14px 0; border-top: 1px solid var(--line); }
.sb-item:first-child { border-top: none; }
.sb-item-head { display: flex; align-items: baseline; flex-wrap: wrap; gap: 8px; }
.sb-link {
  color: var(--burgundy); font-weight: 700; font-size: 16.5px; text-decoration: underline;
  text-decoration-color: rgba(110,20,35,0.3); text-underline-offset: 3px; text-decoration-thickness: 1.5px;
  transition: color .12s, text-decoration-color .12s;
}
.sb-link:hover { color: var(--rose); text-decoration-color: var(--rose); }
.sb-link.is-soon { color: var(--muted); text-decoration-color: var(--line-2); }
.sb-item-desc { margin: 5px 0 0; color: var(--ink-2); font-size: 14.5px; line-height: 1.62; word-break: keep-all; }

/* 태그 */
.sb-tag {
  display: inline-block; font-size: 10.5px; font-weight: 700; letter-spacing: 0.02em;
  padding: 2px 8px; border-radius: 6px; line-height: 1.5; white-space: nowrap; transform: translateY(-1px);
}
.tag-free { color: var(--green); border: 1px solid rgba(63,125,79,0.3); background: rgba(63,125,79,0.06); }
.tag-partial { color: var(--amber); border: 1px solid rgba(154,122,44,0.3); background: rgba(154,122,44,0.06); }
.tag-paid { color: var(--muted); border: 1px solid var(--line-2); background: var(--paper-2); }
.tag-demo { color: var(--burgundy); border: 1px solid rgba(110,20,35,0.3); background: rgba(110,20,35,0.05); }
.tag-vault { color: var(--burgundy); border: 1px solid rgba(110,20,35,0.3); background: rgba(110,20,35,0.05); }
.tag-soon { color: var(--faint); border: 1px solid var(--line-2); background: transparent; }
.sb-mine {
  display: inline-block; font-size: 10px; font-weight: 700; letter-spacing: 0.05em;
  color: var(--brass); border: 1px solid var(--brass-soft); padding: 2px 8px; border-radius: 6px; transform: translateY(-1px);
}
.sb-disc {
  font-size: 12.5px; line-height: 1.5; color: var(--amber); margin: 8px 0 0;
  padding: 8px 11px; background: rgba(154,122,44,0.06); border: 1px solid rgba(154,122,44,0.22); border-radius: 7px;
}
.sb-disc span { font-weight: 700; }

/* ── 리드캡처 ── */
.sb-lead { margin: 38px 0 8px; }
.sb-lead-box { text-align: center; padding: 32px 26px; background: var(--paper-2); border: 1px solid var(--line-2); border-radius: 14px; }
.sb-lead .sb-eyebrow { justify-content: center; }
.sb-lead-title { font-size: clamp(20px, 3.2vw, 25px); font-weight: 800; margin: 12px 0 10px; }
.sb-lead-body { color: var(--ink-2); line-height: 1.7; margin: 0 auto 22px; max-width: 46ch; }
.sb-lead-soon { margin-top: 14px; font-size: 11.5px; color: var(--muted); }

/* ── 전하는 말 ── */
.sb-letter { margin: 46px 0 10px; padding: 28px 0 0; border-top: 1px solid var(--line); }
.sb-letter-body { color: var(--ink-2); font-size: 16px; line-height: 1.9; word-break: keep-all; margin: 14px 0 0; }
.sb-letter-sign { color: var(--burgundy); font-weight: 700; margin-top: 16px; }

/* ── 푸터 ── */
.sb-footer { border-top: 1px solid var(--line); background: var(--paper-2); padding: 40px 0 64px; margin-top: 30px; }
.sb-foot-copy { color: var(--ink-2); font-size: 13.5px; line-height: 1.7; margin: 10px 0 12px; }
.sb-foot-disc { color: var(--muted); font-size: 12.5px; line-height: 1.65; margin: 0; }
.sb-foot-meta { color: var(--muted); font-size: 12px; margin: 22px 0 0; }
.sb-foot-meta a { color: var(--burgundy); text-decoration: none; }

/* ── 준비중 페이지 ── */
.sb-soonpage { max-width: 520px; margin: 16vh auto; padding: 0 24px; text-align: center; }
.sb-soonpage .sb-eyebrow { justify-content: center; }
.sb-soonpage .sb-title { font-size: clamp(26px, 6vw, 38px); margin: 12px 0 14px; }
.sb-soonpage .sb-lede { margin: 0 auto 28px; }
.sb-soonpage .sb-cta { background: transparent; color: var(--burgundy); border: 1px solid var(--line-2); box-shadow: none; }
.sb-soonpage .sb-cta:hover { background: var(--paper-2); }

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .sb-cta { transition: none; } }
@media (max-width: 600px) {
  .sb-mast { padding-top: 38px; }
  .sb-link { font-size: 16px; }
}