/* Media Sync Tool — User Guide.
   Styled to match the msynctool.com site: Hanken Grotesk, indigo/teal tokens,
   glass header, footer, full dark mode. Font is SELF-HOSTED (no external
   render-blocking dependency) so cold loads paint deterministically and the
   book still renders correctly offline in the shipped .help bundle. */

/* Hanken Grotesk — self-hosted latin subset; swap = text never blocks first paint. */
@font-face{ font-family:"Hanken Grotesk"; font-style:normal; font-weight:400; font-display:swap;
  src:url("../fonts/hanken-grotesk-latin-400-normal.woff2") format("woff2"); }
@font-face{ font-family:"Hanken Grotesk"; font-style:normal; font-weight:500; font-display:swap;
  src:url("../fonts/hanken-grotesk-latin-500-normal.woff2") format("woff2"); }
@font-face{ font-family:"Hanken Grotesk"; font-style:normal; font-weight:600; font-display:swap;
  src:url("../fonts/hanken-grotesk-latin-600-normal.woff2") format("woff2"); }
@font-face{ font-family:"Hanken Grotesk"; font-style:normal; font-weight:700; font-display:swap;
  src:url("../fonts/hanken-grotesk-latin-700-normal.woff2") format("woff2"); }

:root{
  color-scheme: light dark;
  --bg:#ffffff; --bg-alt:#f4f7f6; --ink:#152320; --text:#3c4a47; --text-secondary:#64726f;
  --heading:#152320; --link:#4338ca; --border:#e7ecea;
  --accent:#4f46e5; --accent-text:#4338ca; --accent-soft:#edeefb;
  --teal:#0c7a68; --teal-text:#0a6354;
  --callout-bg:#f4f7f6; --callout-border:#e7ecea;
  --tip-accent:#0c7a68; --note-accent:#b7791f; --important-accent:#c2410c;
  --code-bg:#f4f7f6;
  --ah-sidebar-bg:#f7f9f8; --ah-sel-bg:#edeefb; --ah-sel-text:#4338ca;
  --content-width:768px;
  --nav-h:56px; --r-sm:8px; --r-md:12px; --r-lg:16px;
  --glass-bg:rgba(255,255,255,.7); --glass-brd:rgba(255,255,255,.66);
  --glass-hl:inset 0 1px 0 rgba(255,255,255,.85); --glass-blur:blur(18px) saturate(180%);
  --shadow:0 2px 4px rgba(20,40,36,.06),0 12px 24px -10px rgba(20,40,36,.16);
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#0e1413; --bg-alt:#161d1c; --ink:#eef2f1; --text:#c4cecb; --text-secondary:#9aa9a5;
    --heading:#eef2f1; --link:#a5a3f5; --border:#283230;
    --accent:#7c79f0; --accent-text:#a5a3f5; --accent-soft:rgba(124,121,240,.16);
    --teal:#34c7ab; --teal-text:#5fd6bf;
    --callout-bg:#161d1c; --callout-border:#283230;
    --tip-accent:#34c7ab; --note-accent:#e0b344; --important-accent:#f0885a;
    --code-bg:#161d1c;
    --ah-sidebar-bg:#131a19; --ah-sel-bg:rgba(124,121,240,.16); --ah-sel-text:#c9c7fb;
    --glass-bg:rgba(16,22,21,.68); --glass-brd:rgba(255,255,255,.12);
    --glass-hl:inset 0 1px 0 rgba(255,255,255,.18);
    --shadow:0 12px 30px -14px rgba(0,0,0,.6);
  }
}

*{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; scroll-padding-top:calc(var(--nav-h) + 12px); }
body{
  margin:0;
  font-family:"Hanken Grotesk",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px; line-height:1.65; color:var(--text); background:var(--bg);
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
}

/* ── Glass site header (injected by nav.js; brand links home) ── */
.dnav{
  position:fixed; top:0; left:0; right:0; z-index:100; display:flex; align-items:center; gap:16px;
  height:var(--nav-h); padding:0 clamp(16px,4vw,22px);
  background:var(--glass-bg); backdrop-filter:var(--glass-blur); -webkit-backdrop-filter:var(--glass-blur);
  border-bottom:1px solid var(--glass-brd); box-shadow:var(--glass-hl);
}
.dnav-brand{display:flex; align-items:center; gap:.5em; min-width:0; font-weight:700; font-size:1.02rem; letter-spacing:-.01em; color:var(--ink); text-decoration:none}
.dnav-brand span{overflow:hidden; text-overflow:ellipsis; white-space:nowrap}
.dnav-toggle{display:none; width:44px; height:44px; flex:none; margin-left:auto; flex-direction:column; justify-content:center; align-items:center; gap:5px; padding:0; border:none; background:transparent; cursor:pointer}
.dnav-toggle span{display:block; width:22px; height:2px; border-radius:2px; background:var(--ink); transition:transform .22s, opacity .18s}
.dnav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.dnav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.dnav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.dnav-brand img{width:26px; height:26px; border-radius:7px}
.dnav-links{display:flex; align-items:center; gap:clamp(14px,3vw,22px); margin-left:auto; font-size:.92rem}
.dnav-links a{color:var(--text-secondary); font-weight:500; text-decoration:none; transition:color .15s; white-space:nowrap}
.dnav-links a:hover{color:var(--ink)}
.dnav-links a.dnav-home{color:var(--accent-text); font-weight:600}
@media (max-width:620px){ .dnav-links{display:none} }

/* ── Content typography ── */
main{ max-width:var(--content-width); margin:0 auto; padding:2.5rem 1.5rem 4rem; }
.topic-icon{ width:52px; height:52px; border-radius:12px; margin-bottom:1rem; }

h1{ font-size:clamp(1.8rem,4vw,2.15rem); line-height:1.14; font-weight:700; letter-spacing:-.02em; color:var(--heading); margin:0 0 1rem; }
h2{ font-size:1.35rem; font-weight:600; letter-spacing:-.015em; color:var(--heading); margin:2.3rem 0 .6rem; }
h3{ font-size:1.08rem; font-weight:600; color:var(--heading); margin:1.7rem 0 .4rem; }

p{ margin:0 0 1rem; }
.lead{ font-size:1.12rem; line-height:1.6; color:var(--text-secondary); text-wrap:pretty; }

a{ color:var(--link); text-decoration:none; transition:color .12s; }
a:hover{ text-decoration:underline; text-underline-offset:2px; }
a:focus-visible{ outline:2px solid var(--accent); outline-offset:2px; border-radius:var(--r-sm); }

figure{ margin:1.6rem 0; }
figure img{ max-width:100%; height:auto; display:block; margin-inline:auto; border:1px solid var(--border); border-radius:var(--r-md); }
figure.plain img{ border:none; border-radius:0; box-shadow:none; filter:drop-shadow(0 3px 6px rgba(20,40,36,.13)) drop-shadow(0 14px 26px rgba(20,40,36,.20)); transform:translateZ(0); }
figure.plain.boxed img{ border-radius:var(--r-md); }
figcaption{ margin-top:.55rem; font-size:.85rem; color:var(--text-secondary); text-align:center; }

ul,ol{ margin:0 0 1rem; padding-left:1.4rem; }
li{ margin:.3rem 0; }
li::marker{ color:var(--text-secondary); }

table{ border-collapse:collapse; width:100%; margin:1.6rem 0; font-size:.95rem; border:1px solid var(--border); border-radius:var(--r-md); overflow:hidden; }
th,td{ text-align:left; padding:.65rem .85rem; border-bottom:1px solid var(--border); }
thead th{ background:var(--bg-alt); font-weight:600; color:var(--ink); font-size:.82rem; text-transform:uppercase; letter-spacing:.03em; }
th{ font-weight:600; color:var(--ink); }
td{ font-size:.9rem; line-height:1.5; }
tr:last-child td{ border-bottom:none; }

code{ font-family:ui-monospace,"SF Mono",Menlo,Monaco,monospace; font-size:.9em; background:var(--code-bg); border:1px solid var(--border); padding:.1em .38em; border-radius:6px; color:var(--ink); }

/* Callouts */
.callout{ margin:1.6rem 0; padding:.9rem 1.1rem; background:var(--callout-bg); border:1px solid var(--callout-border); border-left:3px solid var(--note-accent); border-radius:var(--r-md); }
.callout p:last-child{ margin-bottom:0; }
.callout .label{ font-weight:600; color:var(--note-accent); }
.callout.tip{ border-left-color:var(--tip-accent); }
.callout.tip .label{ color:var(--tip-accent); }
.callout.important{ border-left-color:var(--important-accent); }
.callout.important .label{ color:var(--important-accent); }

/* See also */
.see-also{ margin-top:2.6rem; padding-top:1.2rem; border-top:1px solid var(--border); }
.see-also h2{ font-size:.78rem; margin:0 0 .5rem; text-transform:uppercase; letter-spacing:.06em; color:var(--text-secondary); }
.see-also ul{ list-style:none; padding:0; margin:0; }
.see-also li{ margin:.25rem 0; }

/* Per-page copyright (kept small; the injected footer carries the site nav) */
.ah-copyright{ display:none; }  /* the injected .dfoot now carries the copyright */

dl{ margin:1.6rem 0; }
dt{ font-weight:600; color:var(--ink); margin-top:.9rem; }
dd{ margin:.2rem 0 0; color:var(--text-secondary); }

.legend{ list-style:none; padding:0; margin:1.6rem 0; }
.legend li{ position:relative; padding-left:2rem; margin:.7rem 0; line-height:1.5; }
.legend li > img:first-child, .legend li > picture:first-child img{ position:absolute; left:0; top:.15em; height:22px; width:auto; }
.legend .term{ font-weight:600; color:var(--ink); }

.sym{ height:1.2em; width:auto; vertical-align:-.22em; }
kbd{ font-family:inherit; font-size:.85em; background:var(--code-bg); border:1px solid var(--border); border-radius:6px; padding:.1em .45em; color:var(--ink); }
ol.steps{ padding-left:1.3rem; }
ol.steps li{ margin:.5rem 0; }

::selection{ background:var(--accent); color:#fff; }

/* ── In-page Table of Contents sidebar (populated by ../nav.js) ── */
.ah-shell{ display:flex; align-items:stretch; min-height:100vh; }
.ah-shell > main{ flex:1 1 auto; min-width:0; max-width:var(--content-width); margin:0 auto; padding:calc(var(--nav-h) + 2.5rem) 2rem 4rem; }

.ah-sidebar{
  flex:0 0 280px; width:280px; box-sizing:border-box;
  position:sticky; top:0; height:100vh; overflow-y:auto;
  padding:calc(var(--nav-h) + 1.5rem) .85rem 2rem; background:var(--ah-sidebar-bg); border-right:1px solid var(--border);
  -webkit-user-select:none; user-select:none;
}
.ah-nav-title{ margin:0 0 .7rem; padding:0 .55rem; font-size:.66rem; font-weight:700; text-transform:uppercase; letter-spacing:.06em; color:var(--text-secondary); }

/* Search box + results */
.ah-search{ padding:0 .55rem .7rem; }
.ah-search input{
  width:100%; box-sizing:border-box; font-family:inherit; font-size:.85rem;
  padding:7px .95rem; border-radius:999px; border:1px solid var(--border);
  background:var(--bg); color:var(--ink); box-shadow:var(--glass-hl); -webkit-appearance:none; appearance:none;
}
.ah-search input::placeholder{ color:var(--text-secondary); }
.ah-search input:focus{ outline:none; border-color:var(--accent); box-shadow:var(--glass-hl),0 0 0 3px var(--accent-soft); }
.ah-search-status{ margin:0; padding:.3rem .55rem; font-size:.8rem; color:var(--text-secondary); }
.ah-search-list{ list-style:none; margin:0; padding:0; }
.ah-search-list li{ margin:1px 0; }
.ah-search-result{ display:block; padding:6px .55rem; border-radius:var(--r-sm); text-decoration:none; color:var(--ink); }
.ah-search-result:hover{ background:var(--ah-sel-bg); text-decoration:none; }
.ah-search-title{ display:block; font-size:.82rem; line-height:1.3; }
.ah-search-sub{ display:block; font-size:.74rem; line-height:1.3; color:var(--text-secondary); margin-top:1px; }

.ah-nav, .ah-subnav{ list-style:none; margin:0; padding:0; }
.ah-item{ margin:1px 0; }
.ah-row{ display:flex; align-items:stretch; }
.ah-gutter{ flex:0 0 22px; display:inline-flex; align-items:center; justify-content:center; }
.ah-disclosure{ appearance:none; -webkit-appearance:none; background:none; border:0; margin:0; padding:6px; line-height:0; color:var(--text-secondary); cursor:pointer; border-radius:5px; }
.ah-disclosure:hover{ background:color-mix(in srgb, var(--ink) 10%, transparent); color:var(--ink); }
.ah-disclosure::before{ content:""; display:block; width:0; height:0; border-left:5px solid currentColor; border-top:4px solid transparent; border-bottom:4px solid transparent; transition:transform .15s ease; }
.ah-expanded > .ah-row > .ah-gutter > .ah-disclosure::before{ transform:rotate(90deg); }

.ah-link{ flex:1 1 auto; min-width:0; display:block; padding:5px .55rem; border-radius:var(--r-sm); font-size:.8125rem; line-height:1.3; color:var(--text); text-decoration:none; }
.ah-link:hover{ background:color-mix(in srgb, var(--ink) 7%, transparent); text-decoration:none; }
.ah-link.current{ background:var(--ah-sel-bg); color:var(--ah-sel-text); font-weight:600; }
.ah-link.current:hover{ background:var(--ah-sel-bg); color:var(--ah-sel-text); }

.ah-has-children > .ah-subnav{ display:none; }
.ah-has-children.ah-expanded > .ah-subnav{ display:block; }
.ah-subnav{ margin:1px 0 6px; padding-left:34px; }
.ah-subnav .ah-link{ padding:3px .55rem; font-size:.775rem; color:var(--text-secondary); }
.ah-subnav .ah-link:hover{ color:var(--ink); }
.ah-subnav .ah-link.current{ color:var(--ah-sel-text); background:transparent; font-weight:600; box-shadow:inset 2px 0 0 var(--accent); border-radius:0; }

/* ── Injected site footer (copyright only) ── */
.dfoot{ border-top:1px solid var(--border); padding:30px clamp(20px,5vw,24px) 38px; color:var(--text-secondary); background:var(--bg); }
.dfoot-copy{ max-width:var(--content-width); margin:0 auto; font-size:.86rem; text-align:center; }

@media (max-width:800px){
  .dnav-links{ display:none; }
  .dnav-toggle{ display:flex; }
  .dnav-brand{ font-size:.95rem; }
  .ah-shell{ display:block; }
  .ah-shell > main{ max-width:var(--content-width); margin:0 auto; padding:calc(var(--nav-h) + 1.8rem) 1.5rem 3rem; }
  .ah-sidebar{
    position:fixed; top:var(--nav-h); left:0; right:0; width:100%; z-index:90;
    height:auto; max-height:calc(100dvh - var(--nav-h)); overflow-y:auto;
    flex:none; border-right:none; border-bottom:1px solid var(--border);
    box-shadow:var(--shadow); padding:1rem 1.25rem 1.5rem;
    transform:translateY(-8px); opacity:0; visibility:hidden; pointer-events:none;
    transition:opacity .18s ease, transform .18s ease, visibility .18s;
  }
  .ah-sidebar.ah-open{ transform:none; opacity:1; visibility:visible; pointer-events:auto; }
  .ah-search input{ font-size:16px; padding:9px 1.05rem; }
  .ah-nav-title{ font-size:.72rem; }
  .ah-link{ font-size:.95rem; padding:8px .6rem; }
  .ah-subnav .ah-link{ font-size:.88rem; padding:6px .6rem; }
  .ah-search-title{ font-size:.92rem; }
  .ah-search-sub{ font-size:.82rem; }
}