/* ============================================================
   LIME 萊姆輸入法 — User Manual stylesheet
   Built for in-app (Settings webview) reading on phone + tablet.
   Components per USER_MANUAL_PLAN: .manual-hero, .manual-card-grid,
   .manual-card, .manual-screenshot-pair, .manual-note, .manual-warning
   ============================================================ */
:root{
  --lime:#93B81E; --lime-deep:#3F6B16; --lime-ink:#3A5314;
  --wash:#EDF3D2; --paper:#FBFAF1; --card:#FFFFFF;
  --ink:#1E2017; --muted:#6C6A5B; --line:#E7E8D2; --line-soft:#EEF1E0;
  --warn:#B4540A; --warn-bg:#FDF1E6; --warn-line:#F4D2B0;
  --note-bg:#F1F4DF; --note-line:#DBE4B6;
  --r:16px;
  --han:"Noto Sans TC",-apple-system,"PingFang TC","Microsoft JhengHei",sans-serif;
  --latin:"Space Grotesk","Noto Sans TC",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--han);color:var(--ink);background:var(--paper);line-height:1.75;
  -webkit-font-smoothing:antialiased;font-size:16px}
a{color:var(--lime-ink);text-decoration:none}
a:hover{text-decoration:underline}
code{font-family:ui-monospace,"SF Mono",Menlo,monospace;background:var(--wash);
  color:var(--lime-ink);padding:.1em .42em;border-radius:6px;font-size:.88em}

/* ---------- top bar ---------- */
.m-top{position:sticky;top:0;z-index:40;background:rgba(250,252,244,.9);
  backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid var(--line)}
.m-top .bar{max-width:1080px;margin:0 auto;display:flex;align-items:center;gap:28px;
  height:72px;padding:0 28px}
.m-top .logo{display:flex;align-items:center;gap:11px;font-weight:700;font-size:23px}
.m-top .logo img{width:44px;height:44px;display:block}
.m-top .logo .wm{font-family:var(--han);font-size:23px;letter-spacing:.01em;font-weight:700;white-space:nowrap;color:#1E2017}
.m-top .logo .sub{color:var(--muted);font-weight:500;font-size:13.5px}
.m-top .home{margin-left:auto;font-size:14px;font-weight:600;color:var(--muted)}
.m-top .home:hover{color:var(--lime-ink);text-decoration:none}

/* ---------- layout ---------- */
.m-shell{max-width:1080px;margin:0 auto;padding:0 28px;
  display:grid;grid-template-columns:236px 1fr;gap:38px;align-items:start}
.m-side{position:sticky;top:88px;padding:22px 0 40px}
.m-side .grp{font-family:var(--latin);font-size:11.5px;font-weight:600;letter-spacing:.14em;
  text-transform:uppercase;color:var(--lime-deep);margin:18px 6px 8px}
.m-side a{display:flex;gap:10px;align-items:center;padding:8px 12px;border-radius:10px;
  color:var(--ink);font-size:14.5px;font-weight:500}
.m-side a:hover{background:var(--line-soft);text-decoration:none}
.m-side a.on{background:var(--ink);color:#EAF4D6;font-weight:700}
.m-side a .n{font-family:var(--latin);font-size:12px;color:var(--muted);min-width:18px}
.m-side a.on .n{color:var(--lime)}

/* phone: drawer */
.m-toc{display:none}
.m-content{min-width:0;padding:6px 0 80px;max-width:760px}

/* ---------- hero ---------- */
.manual-hero{background:linear-gradient(150deg,var(--ink),#283619);color:#EAF4D6;
  border-radius:24px;padding:38px 34px;margin:24px 0 30px;position:relative;overflow:hidden}
.manual-hero::after{content:"";position:absolute;inset:0;background:
  radial-gradient(55% 80% at 88% 8%,rgba(155,219,30,.34),transparent 60%);pointer-events:none}
.manual-hero>*{position:relative}
.manual-hero .crumb{font-family:var(--latin);font-size:12.5px;font-weight:600;letter-spacing:.12em;
  text-transform:uppercase;color:var(--lime)}
.manual-hero h1{font-size:clamp(27px,5vw,38px);font-weight:900;line-height:1.18;margin:12px 0 0}
.m-content .manual-hero p{color:#C5C7BF;font-size:16.5px;margin-top:14px;max-width:40em;text-wrap:pretty}
.manual-hero .quick{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.manual-hero .quick a{background:rgba(155,219,30,.16);color:#EAF4D6;font-weight:600;font-size:14px;
  padding:8px 15px;border-radius:999px;border:1px solid rgba(155,219,30,.28);white-space:nowrap}
.manual-hero .quick a:hover{background:var(--lime);color:#1c2b06;text-decoration:none}

/* ---------- content typography ---------- */
.m-content h2{font-size:24px;font-weight:900;letter-spacing:-.01em;margin:42px 0 6px;
  padding-top:10px;scroll-margin-top:72px}
.m-content h2:first-of-type{margin-top:8px}
.m-content h3{font-size:18.5px;font-weight:700;margin:28px 0 4px;color:#23231F}
.m-content p{margin:12px 0;color:#2C2C27}
.m-content ul,.m-content ol{margin:12px 0 12px 1.3em;color:#2C2C27}
.m-content li{margin:7px 0}
.m-content li::marker{color:var(--lime-deep)}
.lead{font-size:18px;color:var(--muted)!important;text-wrap:pretty}
.m-content strong{color:var(--ink);font-weight:700}

/* numbered task steps */
.steps{counter-reset:s;list-style:none;margin:18px 0;padding:0}
.steps li{position:relative;padding:14px 16px 14px 56px;background:var(--card);
  border:1px solid var(--line);border-radius:14px;margin:10px 0}
.steps li::before{counter-increment:s;content:counter(s);position:absolute;left:14px;top:13px;
  width:28px;height:28px;border-radius:9px;background:var(--lime);color:#1c2b06;
  font-family:var(--latin);font-weight:700;display:grid;place-items:center;font-size:15px}
.steps li strong{display:block;margin-bottom:2px}

/* ---------- card grid ---------- */
.manual-card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:20px 0}
.manual-card{display:flex;flex-direction:column;gap:8px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r);padding:20px;transition:transform .14s,box-shadow .2s,border-color .2s}
a.manual-card:hover{transform:translateY(-2px);box-shadow:0 12px 30px -16px rgba(24,35,15,.28);
  border-color:var(--lime);text-decoration:none}
.manual-card .ic{width:38px;height:38px;border-radius:11px;background:var(--wash);
  display:grid;place-items:center;font-weight:900;color:var(--lime-deep);font-size:19px}
.manual-card .num{font-family:var(--latin);font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--lime-deep)}
.manual-card h3{font-size:17px;font-weight:700;margin:0}
.manual-card p{font-size:14px;color:var(--muted);margin:0;flex:1}
.manual-card .go{font-size:13.5px;font-weight:700;color:var(--lime-ink)}

/* ---------- screenshot pair ---------- */
.manual-screenshot-pair{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:22px 0}
.manual-screenshot-pair.trio{grid-template-columns:repeat(3,1fr)}
.shot{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:14px;text-align:center}
.shot .cap{font-size:13px;font-weight:700;color:var(--muted);margin-bottom:12px;display:flex;
  align-items:center;justify-content:center;gap:7px}
.shot .cap .pf{font-family:var(--latin);font-size:11px;font-weight:600;color:var(--lime-ink);
  background:var(--wash);padding:2px 8px;border-radius:999px}
/* real screenshot in a phone frame */
.shot-frame{margin:0 auto;width:100%;max-width:248px;background:#141a0e;border-radius:30px;
  padding:7px;box-shadow:0 18px 40px -20px rgba(24,35,15,.55);border:1px solid #2b3a1c}
.shot-frame img{width:100%;display:block;border-radius:24px;background:#fff}
.manual-screenshot-single{display:flex;justify-content:center;margin:22px 0}
.manual-screenshot-single .shot{width:100%;max-width:312px}
.shot .ph-note{font-size:11.5px;color:var(--muted);margin-top:12px;line-height:1.5}
.figure-cap{font-size:13px;color:var(--muted);margin-top:6px;text-align:center}

/* ---------- note & warning ---------- */
.manual-note,.manual-warning{display:flex;gap:13px;border-radius:14px;padding:15px 17px;margin:20px 0;
  font-size:14.5px;line-height:1.65}
.manual-note{background:var(--note-bg);border:1px solid var(--note-line)}
.manual-warning{background:var(--warn-bg);border:1px solid var(--warn-line)}
.manual-note .ti,.manual-warning .ti{flex:none;width:24px;height:24px;border-radius:8px;
  display:grid;place-items:center;font-weight:900;font-size:14px}
.manual-note .ti{background:var(--lime);color:#1c2b06}
.manual-warning .ti{background:var(--warn);color:#fff}
.manual-note b,.manual-warning b{display:block;margin-bottom:2px}
.manual-note b{color:var(--lime-ink)}
.manual-warning{color:#6a3208}
.manual-warning b{color:var(--warn)}

/* ---------- page footer nav ---------- */
.m-pagenav{display:flex;justify-content:space-between;gap:12px;margin:48px 0 0;
  padding-top:24px;border-top:1px solid var(--line)}
.m-pagenav a{flex:1;max-width:48%;background:var(--card);border:1px solid var(--line);
  border-radius:14px;padding:14px 18px;color:var(--ink)}
.m-pagenav a:hover{border-color:var(--lime);text-decoration:none}
.m-pagenav .dir{font-size:12px;color:var(--muted);font-weight:600}
.m-pagenav .ttl{font-size:15.5px;font-weight:700;color:var(--lime-ink);margin-top:2px}
.m-pagenav a.next{text-align:right}
.m-foot{max-width:1080px;margin:40px auto 0;padding:24px 28px 50px;border-top:1px solid var(--line);
  color:var(--muted);font-size:13px;display:flex;gap:16px;flex-wrap:wrap;justify-content:space-between}
.m-foot a{color:var(--muted)}
.m-foot .lk{display:flex;gap:16px;flex-wrap:wrap}

/* ---------- real screenshot figures ---------- */
.manual-screenshot-pair figure{margin:0;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r);padding:12px;display:flex;flex-direction:column}
.manual-screenshot-pair figure img{width:100%;height:auto;display:block;border-radius:10px;
  border:1px solid var(--line-soft);background:#EEF1E8}
.manual-screenshot-pair figure img.kb-sq{border-radius:0;border:0}
.manual-screenshot-pair figure.sq{padding:0;border-radius:0;overflow:hidden;border:1px solid var(--line)}
.manual-screenshot-pair figure.sq figcaption{padding:10px 12px 12px}
/* keyboard trio: square cards, identical padding around each capture */
.manual-screenshot-pair.trio figure{border-radius:0;padding:10px}
.manual-screenshot-pair.trio figure img{border-radius:0;border:1px solid var(--line-soft)}
.manual-screenshot-pair.trio figcaption{margin-top:10px}
.manual-screenshot-pair figcaption{font-size:13px;color:var(--muted);line-height:1.55;margin-top:10px;text-wrap:pretty}
.manual-screenshot-pair figcaption code{font-size:.92em}

/* ---------- content tables ---------- */
.m-content table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14.5px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.m-content thead th{background:var(--wash);color:var(--lime-ink);font-weight:700;text-align:left;
  padding:12px 14px;font-size:13.5px;letter-spacing:.01em;border-bottom:1px solid var(--note-line)}
.m-content tbody td{padding:11px 14px;border-top:1px solid var(--line-soft);color:#2b3a1d;vertical-align:top;line-height:1.55}
.m-content tbody tr:first-child td{border-top:0}
.m-content tbody td:first-child{font-weight:700;color:var(--ink);white-space:nowrap}
.m-content .table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:20px 0}
.m-content .table-wrap table{margin:0;min-width:520px}
.m-content pre.cb{background:var(--ink);color:#EAF4D6;border-radius:12px;padding:15px 17px;
  overflow-x:auto;-webkit-overflow-scrolling:touch;font-family:ui-monospace,"SF Mono",Menlo,monospace;
  font-size:13px;line-height:1.65;margin:16px 0}
.m-content pre.cb b{color:var(--lime);font-weight:600}

/* ---------- responsive ---------- */
@media(max-width:860px){
  .m-shell{grid-template-columns:1fr;gap:0}
  .m-side{display:none}
  .m-toc{display:block;margin:16px 0 4px}
  .m-toc details{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden}
  .m-toc summary{list-style:none;cursor:pointer;padding:14px 16px;font-weight:700;font-size:15px;
    display:flex;align-items:center;gap:10px}
  .m-toc summary::-webkit-details-marker{display:none}
  .m-toc summary::after{content:"▾";margin-left:auto;color:var(--muted);transition:transform .2s}
  .m-toc details[open] summary::after{transform:rotate(180deg)}
  .m-toc .list{padding:4px 8px 10px;display:grid;gap:2px}
  .m-toc .list a{display:flex;gap:10px;padding:9px 12px;border-radius:9px;font-size:14.5px;font-weight:500;color:var(--ink)}
  .m-toc .list a.on{background:var(--ink);color:#EAF4D6;font-weight:700}
  .m-toc .list a .n{font-family:var(--latin);font-size:12px;color:var(--muted)}
  .m-content{padding-top:4px}
  .manual-hero{padding:28px 22px;border-radius:18px}
}
@media(max-width:560px){
  body{font-size:15.5px}
  .m-top .bar{padding:0 18px;gap:14px}
  .m-shell{padding:0 18px}
  .m-foot{padding:24px 18px 50px}
  .manual-card-grid{grid-template-columns:1fr}
  .manual-screenshot-pair{grid-template-columns:1fr;gap:14px}
  .device{width:200px}
  .m-pagenav{flex-direction:column}
  .m-pagenav a{max-width:100%}
  .m-content tbody td:first-child{white-space:normal}
  .m-content table{font-size:14px}
}
/* tablet reading comfort */
@media(min-width:861px) and (max-width:1100px){
  .m-content{max-width:none}
}


/* ============================================================
   Dark theme — toggled via html[data-theme="dark"]
   (inline head script sets it from saved preference, else system).
   ============================================================ */
html[data-theme="dark"]{
  --lime:#A7CC3A; --lime-deep:#C0DC5C; --lime-ink:#CBE271;
  --wash:#2A3318; --paper:#14160E; --card:#1E2117;
  --ink:#ECEEE0; --muted:#9C9D8D; --line:#30342A; --line-soft:#272B20;
  --warn:#EBA869; --warn-bg:#2C2113; --warn-line:#473820;
  --note-bg:#222A12; --note-line:#3A451F;
}
html[data-theme="dark"] .m-top{background:rgba(20,22,14,.92);}
html[data-theme="dark"] .m-top .logo .wm{color:var(--ink);}
html[data-theme="dark"] .manual-hero{background:linear-gradient(150deg,#10130B,#1E2914);}
html[data-theme="dark"] .m-side a.on{background:#2A3318;color:var(--ink);}
html[data-theme="dark"] .m-content pre.cb{background:#0E110A;}
html[data-theme="dark"] .m-content h3{color:#EDEFE1;}
html[data-theme="dark"] .m-content p,html[data-theme="dark"] .m-content ul,html[data-theme="dark"] .m-content ol,html[data-theme="dark"] .m-content tbody td{color:#CCCEBF;}
html[data-theme="dark"] .manual-warning{color:#EAC9A2;}
html[data-theme="dark"] .manual-screenshot-pair figure img{background:#10130B;}
html[data-theme="dark"] .shot-frame img{background:#0E110A;}

/* theme toggle button */
.theme-toggle{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:10px;
  border:1.5px solid var(--line);background:transparent;color:var(--muted);cursor:pointer;flex:none;
  transition:color .15s,border-color .15s}
.theme-toggle:hover{color:var(--lime-ink);border-color:var(--lime-deep)}
.theme-toggle svg{width:19px;height:19px}
.theme-toggle .ic-sun{display:none}
html[data-theme="dark"] .theme-toggle .ic-sun{display:block}
html[data-theme="dark"] .theme-toggle .ic-moon{display:none}
html.theme-test .theme-toggle{display:inline-grid!important}
.m-top .bar .theme-toggle{margin-left:auto}