.mskn-page {
  padding: 18px 18px calc(44px + var(--safe-bottom));
  background: var(--paper);
}
.mskn-shell {
  width: min(100%, 980px);
  margin: 0 auto;
}
.mskn-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 72px;
  gap: 18px;
  align-items: center;
  min-height: 184px;
  padding: 24px 26px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--card);
  box-shadow: 0 10px 28px rgba(0,0,0,.045);
}
.mskn-kicker,
.mskn-toc-label {
  display: block;
  color: var(--muted);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .13em;
  text-transform: uppercase;
}
.mskn-hero h1 {
  margin: 8px 0 8px;
  color: var(--ink);
  font-size: 30px;
  line-height: 1.08;
  letter-spacing: -.035em;
}
.mskn-hero p {
  max-width: 620px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.72;
}
.mskn-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 15px;
}
.mskn-meta span {
  display: inline-flex;
  align-items: center;
  min-height: 27px;
  padding: 0 10px;
  border-radius: var(--radius-pill);
  background: var(--soft);
  color: var(--ink);
  font-size: 11px;
  font-weight: 800;
}
.mskn-meta .mskn-access {
  background: var(--ink);
  color: var(--card);
}
.mskn-hero-icon {
  position: relative;
  z-index: 1;
  width: 72px;
  height: 72px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--soft);
}
.mskn-hero-icon img { width: 100%; height: 100%; object-fit: contain; }
.mskn-toc {
  margin: 18px 0 0;
  padding: 18px 20px 6px;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--card);
  box-shadow: 0 8px 24px rgba(0,0,0,.035);
}
.mskn-toc-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin-top: 9px;
}
.mskn-toc-card {
  min-width: 0;
  min-height: 58px;
  display: grid;
  grid-template-columns: 32px minmax(0,1fr) auto 16px;
  gap: 12px;
  align-items: center;
  padding: 11px 2px;
  text-align: left;
  border: 0;
  border-top: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
  color: var(--ink);
}
.mskn-toc-card:first-child { border-top: 0; }
.mskn-toc-card:active { opacity: .62; }
.mskn-toc-card.is-restricted { color: color-mix(in srgb, var(--ink) 72%, var(--card)); }
.mskn-toc-no {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 9px;
  background: var(--soft);
  color: var(--muted);
  font-size: 10px;
  font-weight: 900;
}
.mskn-toc-card b { overflow:hidden; text-overflow:ellipsis; white-space:nowrap; font-size:13px; }
.mskn-toc-card small { display:flex; align-items:center; gap:5px; color:var(--muted); font-size:10px; white-space:nowrap; }
.mskn-toc-lock { width:14px; height:14px; fill:none; stroke:currentColor; stroke-width:1.75; stroke-linecap:round; stroke-linejoin:round; }
.mskn-toc-chev { color:var(--muted); font-size:21px; line-height:1; }
.mskn-chapter { margin-top: 38px; scroll-margin-top: 12px; }
.mskn-chapter-head {
  display: grid;
  grid-template-columns: 46px minmax(0,1fr);
  gap: 13px;
  align-items: start;
  margin: 0 2px 15px;
}
.mskn-chapter-no {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: var(--card);
  color: var(--ink);
  font-size: 12px;
  font-weight: 900;
}
.mskn-chapter h2 { margin:0; color:var(--ink); font-size:25px; line-height:1.15; letter-spacing:-.025em; }
.mskn-chapter-intro { margin:5px 0 0; color:var(--muted); font-size:12px; line-height:1.65; }
.mskn-list { display:grid; gap:14px; }
.mskn-note-page {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--card);
  box-shadow: 0 8px 26px rgba(0,0,0,.04);
}
.mskn-page-head {
  min-height: 64px;
  display: grid;
  grid-template-columns: 36px minmax(0,1fr) auto;
  gap: 11px;
  align-items: center;
  padding: 13px 17px;
  border-bottom: 1px solid var(--line);
}
.mskn-page-index {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--soft);
  color: var(--ink);
  font-size: 11px;
  font-weight: 900;
}
.mskn-page-title { margin:0; color:var(--ink); font-size:17px; line-height:1.3; }
.mskn-source-page { color:var(--muted); font-size:10px; font-weight:800; }
.mskn-page-body { display:grid; grid-template-columns:1fr; gap:18px; padding:18px; }
.mskn-page-body.is-text-only { grid-template-columns:1fr; }
.mskn-copy { display:flex; flex-direction:column; gap:7px; }
.mskn-line {
  position: relative;
  padding-left: 13px;
  color: var(--ink);
  font-size: 13px;
  line-height: 1.68;
}
.mskn-line::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--subtle);
}
.mskn-line.is-head {
  margin-top: 4px;
  padding: 7px 0 5px;
  font-weight: 900;
}
.mskn-line.is-head::before { display:none; }
.mskn-media-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:10px; align-content:start; }
.mskn-media-grid.is-single { grid-template-columns:1fr; }
.mskn-media-card { min-width:0; margin:0; overflow:hidden; border:1px solid var(--line); border-radius:16px; background:var(--soft); }
.mskn-media-card.is-wide { grid-column:1/-1; }
.mskn-media-button { width:100%; display:block; background:#eee; }
.mskn-media-button img { width:100%; aspect-ratio:4/3; display:block; object-fit:contain; background:#f1f1f1; }
.mskn-media-copy { display:block; padding:9px 10px 10px; }
.mskn-media-copy b { display:block; color:var(--ink); font-size:11px; line-height:1.4; }
.mskn-media-copy span { display:block; margin-top:3px; color:var(--muted); font-size:9px; }
.mskn-note-page.is-locked { min-height: 330px; }
.mskn-locked-preview { max-height:230px; overflow:hidden; filter:blur(7px); opacity:.58; pointer-events:none; user-select:none; }
.mskn-locked-media-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:10px; }
.mskn-locked-media { min-height:132px; border:1px solid var(--line); border-radius:15px; background:linear-gradient(145deg,var(--soft),var(--card) 55%,var(--line)); }
.mskn-lock-panel {
  position: absolute;
  inset: 62px 0 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 22px;
  text-align: center;
  background: linear-gradient(180deg, transparent 0, color-mix(in srgb, var(--card) 88%, transparent) 26%, var(--card) 55%);
}
.mskn-lock-icon { width:42px; height:42px; display:grid; place-items:center; border:1px solid var(--line); border-radius:15px; background:var(--soft); color:var(--ink); }
.mskn-lock-icon svg { width:20px; fill:none; stroke:currentColor; stroke-width:1.8; }
.mskn-lock-panel h4 { margin:10px 0 4px; color:var(--ink); font-size:16px; }
.mskn-lock-panel p { max-width:430px; margin:0; color:var(--muted); font-size:12px; line-height:1.55; }
.mskn-lock-actions { display:flex; flex-wrap:wrap; justify-content:center; gap:8px; margin-top:12px; }
.mskn-lock-action { min-height:36px; padding:0 13px; border:1px solid var(--line); border-radius:12px; background:var(--soft); color:var(--ink); font-size:11px; font-weight:900; }
.mskn-lock-action.is-primary { background:var(--ink); color:var(--card); border-color:var(--ink); }
.mskn-footnote { margin:24px 0 10px; padding:16px 17px; border:1px solid var(--line); border-radius:16px; background:var(--card); color:var(--muted); font-size:11px; line-height:1.65; }
.mskn-empty { padding:50px 20px; color:var(--muted); text-align:center; }

@media (max-width: 720px) {
  .mskn-page { padding:12px 14px calc(36px + var(--safe-bottom)); }
  .mskn-hero { grid-template-columns:minmax(0,1fr) 68px; min-height:168px; padding:20px; }
  .mskn-hero h1 { font-size:28px; }
  .mskn-hero p { font-size:12px; }
  .mskn-hero-icon { width:68px; height:68px; border-radius:21px; }
  .mskn-toc { padding:16px 16px 4px; }
  .mskn-toc-card { grid-template-columns:30px minmax(0,1fr) auto 14px; gap:10px; }
  .mskn-page-body { grid-template-columns:1fr; padding:15px; }
  .mskn-page-head { grid-template-columns:34px minmax(0,1fr); padding:12px 14px; }
  .mskn-page-index { width:34px; height:34px; }
  .mskn-source-page { display:none; }
  .mskn-media-grid { grid-template-columns:1fr 1fr; }
}
@media (max-width: 420px) {
  .app-header.notes-mode { padding-left:14px; padding-right:14px; }
  .app-header.notes-mode .brand { gap:3px; font-size:18px; }
  .app-header.notes-mode .header-actions { gap:5px; }
  .app-header.notes-mode .icon-btn { width:34px; height:34px; border-radius:12px; }
  .app-header.notes-mode .membership-nudge { height:30px; padding:0 8px; font-size:11px; }
  .app-header.notes-mode:has(.membership-nudge.active) #membership-crown-btn { display:none; }
  .mskn-hero { grid-template-columns:1fr; }
  .mskn-hero-icon { position:absolute; right:15px; top:16px; width:58px; height:58px; opacity:.78; }
  .mskn-hero-copy { padding-right:34px; }
  .mskn-hero h1 { max-width:220px; font-size:27px; }
  .mskn-meta { margin-right:-30px; }
  .mskn-chapter { margin-top:32px; }
  .mskn-chapter h2 { font-size:22px; }
  .mskn-media-grid { grid-template-columns:1fr; }
  .mskn-media-card.is-wide { grid-column:auto; }
  .mskn-lock-panel { padding:18px 12px; }
}

body.theme-dark .mskn-media-button img { background:#151515; }
body.theme-dark .mskn-lock-panel { background:linear-gradient(180deg,transparent 0,rgba(16,16,16,.9) 28%,var(--card) 56%); }