/* ==========================================================================
   PCDeck — guide pages
   Shared by /use-pc-without-mouse/, /use-pc-without-keyboard/, etc.
   ========================================================================== */
:root{
  --paper:#eef0f3;
  --panel:#ffffff;
  --ink:#12161c;
  --graphite:#4a5361;
  --muted:#6b7480;
  --grid:#d5dae1;
  --grid-soft:#e3e7ec;
  --signal:#1b44d8;
  --signal-ink:#12308f;
  --signal-wash:#e8ecfb;
  --caution:#8a5200;
  --caution-wash:#fdf3e3;
  --caution-line:#e6cda2;

  --accent:#1b44d8;
  --fg:#12161c;
  --bg:#ffffff;

  --display:'Archivo',system-ui,sans-serif;
  --body:'Instrument Sans',system-ui,sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,monospace;

  --shell:1180px;
  --r:4px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--body);font-size:17px;line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(var(--grid-soft) 1px,transparent 1px),
                   linear-gradient(90deg,var(--grid-soft) 1px,transparent 1px);
  background-size:64px 64px;opacity:.5;
}
.shell{width:100%;max-width:var(--shell);margin:0 auto;padding:0 28px;position:relative;z-index:1}
a{color:var(--signal-ink);text-decoration:none}
a:hover{text-decoration:underline}
:focus-visible{outline:2px solid var(--signal);outline-offset:2px;border-radius:2px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;z-index:99;background:var(--panel);padding:10px 16px;border:1px solid var(--ink)}
.tag{font-family:var(--mono);font-size:11px;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);overflow-wrap:break-word}
h1,h2,h3,h4{font-family:var(--display);margin:0;line-height:1.1;letter-spacing:-.02em;font-weight:700}

/* ==================== header ==================== */
.top{
  position:sticky;top:0;z-index:100;
  background:color-mix(in srgb,var(--paper) 92%,transparent);
  backdrop-filter:saturate(140%) blur(12px);
  -webkit-backdrop-filter:saturate(140%) blur(12px);
  border-bottom:1px solid var(--grid);
}
.top-in{display:flex;align-items:center;justify-content:space-between;gap:16px;height:62px}
.brand{display:flex;align-items:center;gap:11px}
.brand .mark{
  width:32px;height:32px;border-radius:7px;flex:none;
  background:linear-gradient(160deg,#243041,#0e1319);
  border:1px solid #2b3646;display:grid;place-items:center;overflow:hidden;
}
.brand .mark img{width:30px;height:30px;display:block}
.brand b{font-family:var(--display);font-size:19px;font-weight:800;letter-spacing:-.02em}
.top nav.top-nav{display:flex;gap:22px}
.top nav.top-nav a{font-size:14.5px;color:var(--graphite);font-weight:500}
.top nav.top-nav a:hover{color:var(--signal-ink)}

.top-actions{display:flex;align-items:center;gap:10px}

/* Mobile Nav Toggle & Drawer */
.nav-toggle{
  display:none;
  background:transparent;
  border:1px solid var(--grid);
  border-radius:var(--r);
  width:38px;
  height:38px;
  padding:0;
  cursor:pointer;
  align-items:center;
  justify-content:center;
  color:var(--ink);
  transition:background .15s ease,border-color .15s ease;
}
.nav-toggle:hover{background:var(--grid-soft)}
.nav-toggle svg{width:20px;height:20px;display:block}

.mobile-menu{
  display:none;
  position:fixed;
  top:63px;
  left:0;
  right:0;
  bottom:0;
  background:rgba(18,22,28,0.45);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  z-index:99;
  opacity:0;
  pointer-events:none;
  transition:opacity .2s ease;
}
.mobile-menu.active{
  display:block;
  opacity:1;
  pointer-events:auto;
}
.mobile-menu-panel{
  background:var(--panel);
  border-bottom:1px solid var(--grid);
  padding:18px 18px 24px;
  display:flex;
  flex-direction:column;
  gap:14px;
  box-shadow:0 16px 32px rgba(18,22,28,0.15);
  transform:translateY(-10px);
  transition:transform .2s ease;
  max-height:calc(100vh - 70px);
  overflow-y:auto;
}
.mobile-menu.active .mobile-menu-panel{
  transform:translateY(0);
}
.mobile-menu-links{
  display:flex;
  flex-direction:column;
  gap:4px;
}
.mobile-menu-links a{
  font-family:var(--display);
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  padding:10px 12px;
  border-radius:var(--r);
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.mobile-menu-links a:hover,
.mobile-menu-links a:active{
  background:var(--signal-wash);
  color:var(--signal-ink);
  text-decoration:none;
}
.mobile-guides-title{
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--muted);
  padding:8px 12px 2px;
}
.mobile-menu-sublinks{
  display:grid;
  grid-template-columns:1fr;
  gap:2px;
  padding-left:4px;
}
.mobile-menu-sublinks a{
  font-size:14px;
  font-weight:500;
  color:var(--graphite);
  padding:8px 12px;
  border-radius:var(--r);
}
.mobile-menu-sublinks a:hover{
  background:var(--grid-soft);
  color:var(--ink);
  text-decoration:none;
}

.btn{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--body);font-size:15px;font-weight:600;
  padding:11px 19px;border-radius:var(--r);
  border:1px solid var(--ink);background:var(--ink);color:#fff;
  cursor:pointer;text-decoration:none;
  transition:background .15s ease,border-color .15s ease,color .15s ease;
  min-height:42px;
}
.btn:hover{background:var(--signal);border-color:var(--signal);text-decoration:none}
.btn.ghost{background:transparent;color:var(--ink)}
.btn.ghost:hover{background:var(--ink);color:#fff}
.btn.sm{padding:8px 14px;font-size:13.5px;min-height:36px}

/* ==================== guide-specific ==================== */
.crumbs{padding-top:26px}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.crumbs li+li::before{content:"/";margin-right:8px;color:var(--grid)}

.lede-block{padding-top:22px;padding-bottom:40px;border-bottom:1px solid var(--grid)}
.lede-block h1{font-size:clamp(28px,4.6vw,50px);max-width:22ch}
.lede-block .sub{font-size:19px;line-height:1.55;color:var(--graphite);max-width:62ch;margin:20px 0 0}
.updated{margin:18px 0 0}

.guide{padding-top:44px;padding-bottom:12px}
.guide h2{font-size:clamp(23px,2.6vw,31px);margin:52px 0 0;scroll-margin-top:78px}
.guide h2:first-of-type{margin-top:0}
.guide h3{font-size:19px;margin:32px 0 0}
.guide p{margin:15px 0 0;max-width:68ch}
.guide ul,.guide ol{margin:15px 0 0;padding-left:22px;max-width:68ch}
.guide li{margin:8px 0}
.guide li>strong{font-weight:600}

kbd{
  font-family:var(--mono);font-size:12.5px;font-weight:500;line-height:1;
  display:inline-block;padding:4px 7px 5px;white-space:nowrap;
  background:var(--panel);color:var(--ink);
  border:1px solid var(--grid);border-bottom-width:2px;border-radius:4px;
  word-break:break-word;overflow-wrap:anywhere;
}

.nb{font-family:var(--mono);font-size:.88em;color:var(--graphite);white-space:nowrap}

.keys{width:100%;border-collapse:collapse;margin:20px 0 0;background:var(--panel);border:1px solid var(--grid);border-radius:var(--r)}
.keys caption{text-align:left;font-family:var(--mono);font-size:11px;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);padding:0 0 10px}
.keys th,.keys td{text-align:left;padding:11px 14px;border-bottom:1px solid var(--grid-soft);font-size:15.5px;vertical-align:top}
.keys thead th{font-family:var(--mono);font-size:11px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);background:#fbfcfd}
.keys tbody th{width:210px;font-weight:400;white-space:nowrap}
.keys tr:last-child th,.keys tr:last-child td{border-bottom:0}

.steps{list-style:none;margin:22px 0 0;padding:0;counter-reset:s;max-width:68ch}
.steps li{
  counter-increment:s;position:relative;padding:0 0 0 42px;margin:0 0 20px;
}
.steps li::before{
  content:counter(s,decimal-leading-zero);position:absolute;left:0;top:2px;
  font-family:var(--mono);font-size:12px;font-weight:600;color:var(--signal);
}
.steps b{display:block;font-family:var(--display);font-size:17px;font-weight:700;letter-spacing:-.01em}
.steps p{margin:5px 0 0}

.limit{
  background:var(--caution-wash);border:1px solid var(--caution-line);border-left-width:2px;
  border-radius:var(--r);padding:18px 20px;margin:24px 0 0;max-width:68ch;
}
.limit .tag{color:var(--caution)}
.limit p{margin:8px 0 0}
.limit p:first-of-type{margin-top:6px}

.pitch{
  background:var(--panel);border:1px solid var(--grid);border-left:2px solid var(--signal);
  border-radius:var(--r);padding:26px 26px 28px;margin:34px 0 0;max-width:68ch;
}
.pitch h2{margin:0;font-size:24px}
.pitch .row{display:flex;flex-wrap:wrap;gap:11px;margin:22px 0 0}
.pitch .fine{margin:15px 0 0;font-size:14.5px;color:var(--muted)}

.quick-card{
  background:var(--signal-wash);border:1px solid #c2cff7;border-left:2px solid var(--signal);
  border-radius:var(--r);padding:18px 20px;margin:0 0 34px;max-width:68ch;
}
.quick-card .tag{color:var(--signal-ink)}
.quick-card p{margin:8px 0 0;font-size:15.5px;line-height:1.55;color:var(--ink)}
.quick-card p:first-of-type{margin-top:6px}
.quick-card a{font-weight:600;color:var(--signal-ink);text-decoration:underline}

.direct-answer{
  background:var(--signal-wash);border:1px solid #c2cff7;border-left:3px solid var(--signal);
  border-radius:var(--r);padding:20px 22px;margin:28px 0 34px;max-width:68ch;
}
.direct-answer .tag{color:var(--signal-ink);font-weight:600;display:inline-block;margin-bottom:6px}
.direct-answer p{margin:6px 0 0;font-size:16px;line-height:1.6;color:var(--ink)}
.direct-answer p:first-of-type{margin-top:4px}
.direct-answer p strong{color:var(--signal-ink)}

/* Guides Hub Layout */
.guides-section{margin:44px 0 0}
.guides-section:first-of-type{margin-top:24px}
.guides-category-title{font-family:var(--display);font-size:22px;font-weight:700;margin:0 0 16px;color:var(--ink);display:flex;align-items:center;gap:10px}
.guides-cat-icon{
  width:28px;height:28px;border-radius:6px;
  background:var(--signal-wash);color:var(--signal-ink);
  border:1px solid #c8d5f9;
  display:inline-flex;align-items:center;justify-content:center;
  flex-shrink:0;
}
.guides-cat-icon svg{
  width:16px;height:16px;stroke:currentColor;fill:none;
  stroke-width:2;stroke-linecap:round;stroke-linejoin:round;display:block;
}
.guides-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:18px;margin:0 0 10px}
.guide-card{background:var(--panel);border:1px solid var(--grid);border-radius:var(--r);padding:22px;display:flex;flex-direction:column;justify-content:space-between;text-decoration:none;transition:border-color .15s ease,transform .15s ease,box-shadow .15s ease}
.guide-card:hover{border-color:var(--signal);box-shadow:0 4px 12px rgba(27,68,216,0.08);text-decoration:none;transform:translateY(-2px)}
.guide-card h3{font-family:var(--display);font-size:18px;font-weight:700;color:var(--ink);margin:0 0 8px;line-height:1.3}
.guide-card:hover h3{color:var(--signal-ink)}
.guide-card p{font-size:14.5px;line-height:1.5;color:var(--graphite);margin:0 0 16px}
.guide-card-meta{font-family:var(--mono);font-size:11px;font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:var(--signal);display:flex;align-items:center;gap:6px}

.next{margin:46px 0 0;padding:26px 0 0;border-top:1px solid var(--grid);max-width:68ch}
.next h2{font-size:19px;margin:0 0 4px}

footer{padding:44px 0 56px;margin-top:40px;border-top:1px solid var(--grid)}
.foot{display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between}
.foot p{margin:0;font-size:14px;color:var(--muted)}
.foot a{color:var(--graphite);padding:4px 0}
.foot a:hover{color:var(--signal-ink)}

@media (max-width:900px){
  .top nav.top-nav{display:none}
  .nav-toggle{display:flex}
  body{font-size:16px}
  .guide{padding-top:34px}
}
@media (max-width:620px){
  .shell{padding-left:16px;padding-right:16px}
  .top-in{height:58px}
  .lede-block{padding-top:18px;padding-bottom:28px}
  .lede-block h1{font-size:clamp(24px,6.8vw,34px)}
  .lede-block .sub{font-size:16px;margin-top:14px}
  .guide{padding-top:24px}
  .guide h2{font-size:22px;margin-top:36px}
  .guide h3{font-size:17.5px;margin-top:24px}
  .pitch{padding:20px 18px}
  .quick-card{padding:16px 16px}
  .limit{padding:16px 16px}
  
  .keys,.keys tbody,.keys tbody tr,.keys tbody th,.keys tbody td{display:block;width:auto}
  .keys thead{position:absolute;left:-9999px}
  .keys caption{display:block;padding:12px 15px;background:#fbfcfd;border-bottom:1px solid var(--grid)}
  .keys tbody tr{padding:13px 15px;border-bottom:1px solid var(--grid-soft)}
  .keys tbody tr:last-child{border-bottom:0}
  .keys tbody th,.keys tbody td{padding:0;border:0;white-space:normal}
  .keys tbody th{margin-bottom:5px}

  .foot{flex-direction:column;align-items:flex-start;gap:16px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}


/* Ensure anchor jumps clear sticky navbar */
section[id], .sec, [id] {
  scroll-margin-top: 84px;
}