/* Tetri’s Smile · v15 · the long-form guide: floating contents, reading progress, numbered parts.
   Loaded only on guide pages (tmj-treatment.html and its Russian twin). */
.phero--guide .lead{max-width:68ch}
.phero__meta{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:8px 24px;margin:26px 0 0;font:500 11px/1.5 var(--display);letter-spacing:.18em;text-transform:uppercase;color:#9fc0ef}
.phero__meta span::before{content:"";display:inline-block;width:5px;height:5px;border-radius:50%;background:currentColor;opacity:.7;margin-right:10px;vertical-align:middle}

/* ---------- layout: contents rail · article · contact aside ---------- */
.guide__article{max-width:72ch}
.guide__article section{scroll-margin-top:calc(96px + env(safe-area-inset-top,0px))}
.guide__article h2[data-n]::before{content:attr(data-n);display:block;font:500 11px/1 var(--display);letter-spacing:.24em;color:#6a7891;margin-bottom:10px}
.guide__article .faq h3{font-size:18px;margin:22px 0 6px}
.guide__article .mfig{margin:30px 0 32px}
.gloss{margin:0;display:grid;grid-template-columns:max-content minmax(0,1fr);gap:8px 22px;font:300 16px/1.55 var(--body)}
.gloss dt{font:500 15px/1.55 var(--display);color:#0a1a4a}
.gloss dd{margin:0}
@media (max-width:560px){.gloss{grid-template-columns:1fr;gap:2px}.gloss dd{margin-bottom:10px}}
@media (min-width:1180px){.mag .guide__grid{grid-template-columns:224px minmax(0,1fr) 300px;gap:40px 44px}}
@media (min-width:1360px){.mag .guide__grid{grid-template-columns:240px minmax(0,1fr) 320px;gap:40px 60px}}

/* ---------- desktop: the contents rail sticks beside the article ---------- */
.toc{display:none}
@media (min-width:1180px){.toc{display:block;position:sticky;top:calc(76px + 24px + env(safe-area-inset-top,0px));max-height:calc(100vh - 76px - 48px - env(safe-area-inset-top,0px));overflow:auto;padding:2px 6px 8px 0;scrollbar-width:thin;scrollbar-color:rgba(10,26,74,.22) transparent}}
.toc__k{color:#0a1a4a;margin:0 0 14px;font-size:11px}
.toc__list{list-style:none;margin:0;padding:0;border-left:1px solid rgba(10,26,74,.14)}
.toc__list li{margin:0}
.toc__list a{position:relative;display:grid;grid-template-columns:26px minmax(0,1fr);gap:8px;align-items:baseline;padding:6px 0 6px 14px;margin-left:-1px;border-left:2px solid transparent;text-decoration:none;color:#4b5467;font:400 13px/1.35 var(--body);transition:color .25s,border-color .25s}
.toc__list a b{font:500 11px/1.4 var(--display);letter-spacing:.14em;color:#8c9ab0;transition:color .25s}
.toc__list a:hover{color:#0a1a4a}
.toc__list a.is-on{color:#0a1a4a;border-left-color:#0a1a4a;font-weight:500}
.toc__list a.is-on b{color:#0a1a4a}
.toc__prog{height:2px;background:rgba(10,26,74,.12);margin:18px 0 8px;border-radius:2px;overflow:hidden}
.toc__prog i{display:block;height:100%;width:var(--p,0%);background:#0a1a4a;transition:width .25s linear}
.toc__pct{margin:0;font:500 10px/1.5 var(--display);letter-spacing:.18em;text-transform:uppercase;color:#6a7891}

/* ---------- narrow screens: a floating pill at the bottom left opens the contents as a sheet ---------- */
.tocfab{position:fixed;left:max(16px,env(safe-area-inset-left,0px));bottom:calc(18px + env(safe-area-inset-bottom,0px));z-index:120;display:none;align-items:center;gap:10px;padding:0 16px 0 8px;height:46px;border-radius:999px;border:0;background:#0a1a4a;color:#fff;box-shadow:0 10px 30px rgba(10,26,74,.3),0 0 0 1px rgba(255,255,255,.12) inset;font:500 11px/1 var(--display);letter-spacing:.16em;text-transform:uppercase;cursor:pointer;opacity:0;transform:translateY(8px);transition:opacity .3s var(--ease),transform .3s var(--ease)}
html.js .tocfab.is-on{display:inline-flex;opacity:1;transform:none}
.tocfab .ring{position:relative;width:30px;height:30px;border-radius:50%;background:conic-gradient(#8fc3ff var(--p,0%),rgba(255,255,255,.18) 0);display:grid;place-items:center}
.tocfab .ring::before{content:"";position:absolute;inset:4px;border-radius:50%;background:#0a1a4a}
.tocfab .ring i{position:relative;font:500 9px/1 var(--display);letter-spacing:.06em;font-style:normal;color:#fff}
@media (max-width:760px){.tocfab{bottom:calc(82px + env(safe-area-inset-bottom,0px))}}
@media (min-width:1180px){html.js .tocfab.is-on{display:none}}
html.menu-open .tocfab,html.modal-open .tocfab,html.tocsheet-open .tocfab{opacity:0;pointer-events:none}
html.tocsheet-open .tbtn{opacity:0;pointer-events:none}
html.tocsheet-open body{overflow:hidden}
.tocsheet{position:fixed;inset:0;z-index:166;display:grid;place-items:end center;background:rgba(11,19,36,.5);opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility 0s .3s}
.tocsheet.is-open{opacity:1;visibility:visible;transition:opacity .3s var(--ease)}
.tocsheet__in{width:min(560px,100%);max-height:min(80dvh,calc(100dvh - 24px));overflow:auto;background:#fff;color:#0b1324;border-radius:14px 14px 0 0;padding:18px max(20px,env(safe-area-inset-right,0px)) calc(18px + env(safe-area-inset-bottom,0px)) max(20px,env(safe-area-inset-left,0px));transform:translateY(24px);transition:transform .32s var(--ease);scrollbar-width:thin}
.tocsheet.is-open .tocsheet__in{transform:none}
@media (min-width:720px){.tocsheet{place-items:center;padding:24px}.tocsheet__in{border-radius:8px;padding:26px 28px}}
.tocsheet__head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:10px}
.tocsheet__head .lab{color:#0a1a4a;font-size:11px}
.tocsheet__x{display:flex;align-items:center;gap:10px;font:500 11px/1 var(--display);letter-spacing:.2em;text-transform:uppercase;color:#0b1324}
.tocsheet__x b{width:30px;height:30px;border-radius:50%;border:1px solid rgba(11,19,36,.3);display:grid;place-items:center}
.tocsheet__x b::before{content:"";width:12px;height:12px;background:linear-gradient(currentColor,currentColor) center/100% 1px no-repeat,linear-gradient(currentColor,currentColor) center/1px 100% no-repeat;transform:rotate(45deg)}
.tocsheet .toc__list a{padding:9px 0 9px 14px;font-size:15px;grid-template-columns:30px minmax(0,1fr)}
.tocsheet .toc__pct{margin-top:14px}
.tocsheet .toc__prog{margin-top:16px}

/* ---------- modes ---------- */
html.a11y-contrast .toc__list a{color:#000}html.a11y-contrast .toc__list a b{color:#2b3650}html.a11y-contrast .toc__list{border-left-color:rgba(0,0,0,.4)}
html.a11y-motion .toc__prog i,html.reduced .toc__prog i{transition:none}
@media (prefers-reduced-motion:reduce){.tocfab,.tocsheet,.tocsheet__in,.toc__prog i{transition:none}}
/* Frost skin: slate instead of navy, mono slash numbers */
html[data-skin="frost"] .toc__k,html[data-skin="frost"] .toc__list a.is-on,html[data-skin="frost"] .toc__list a.is-on b,html[data-skin="frost"] .gloss dt,html[data-skin="frost"] .tocsheet__head .lab{color:var(--slate,#0f1c2b)}
html[data-skin="frost"] .toc__list a.is-on{border-left-color:var(--slate,#0f1c2b)}
html[data-skin="frost"] .toc__prog i,html[data-skin="frost"] .tocfab,html[data-skin="frost"] .tocfab .ring::before{background:var(--slate,#0f1c2b)}
html[data-skin="frost"] .toc__list a b,html[data-skin="frost"] .toc__pct,html[data-skin="frost"] .phero__meta{font-family:var(--mono)}
html[data-skin="frost"] .guide__article h2[data-n]::before{content:"/ " attr(data-n) " /";font-family:var(--mono);letter-spacing:.12em}