:root{
  --bg: #0b0f19;
  --panel: rgba(255,255,255,0.06);
  --text: rgba(255,255,255,0.92);
  --muted: rgba(255,255,255,0.72);
  --faint: rgba(255,255,255,0.55);
  --border: rgba(255,255,255,0.12);
  --shadow: 0 10px 30px rgba(0,0,0,0.35);
  --radius: 16px;
  --max: 1120px;
  --accent: #4da3ff;
  --accent2: #7c5cff;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  background:
    radial-gradient(1200px 600px at 20% -10%, rgba(77,163,255,0.24), transparent 60%),
    radial-gradient(900px 500px at 95% 10%, rgba(124,92,255,0.20), transparent 60%),
    var(--bg);
  color: var(--text);
  line-height: 1.6;
}
a{color: var(--accent); text-decoration:none}
a:hover{text-decoration:underline}

.topbar{
  position:sticky; top:0; z-index:30;
  backdrop-filter: blur(12px);
  background: rgba(11,15,25,0.65);
  border-bottom: 1px solid var(--border);
}
.topbar-inner{
  max-width: var(--max);
  margin:0 auto;
  padding: 14px 18px;
  display:flex; align-items:center; gap:14px;
}

.brand{display:flex; align-items:center; gap:10px; font-weight:500; letter-spacing:0.3px;}

.dot{
  width: 12px; height: 12px; border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 0 0 3px rgba(77,163,255,0.18);
}
.badge{
  font-size:12px; padding: 4px 10px; border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.06);
  color: var(--muted);
}

.layout{
  max-width: var(--max);
  margin: 0 auto;
  padding: 18px;
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 18px;
}
@media (max-width: 980px){ .layout{ grid-template-columns: 1fr; } }

.sidebar{
  position: sticky;
  top: 70px;
  height: calc(100vh - 90px);
  overflow:auto;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.04);
  box-shadow: var(--shadow);
}
@media (max-width: 980px){ .sidebar{ position: static; height: auto; } }

.search{display:flex; gap:10px; align-items:center; margin-bottom:12px;}
.search input{
  width: 100%;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(0,0,0,0.20);
  color: var(--text);
  outline: none;
}
.search input::placeholder{color: var(--faint)}

.toc{font-size: 15px; list-style:none; padding:0; margin:0; display:flex; flex-direction:column; gap: 6px;}

.toc a{
  display:block;
  padding: 8px 10px;
  border-radius: 12px;
  border: 1px solid transparent;
  color: var(--muted);
}
.toc a:hover{
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.08);
  color: var(--text);
  text-decoration:none;
}
.toc a.active{
  background: rgba(77,163,255,0.12);
  border-color: rgba(77,163,255,0.22);
  color: var(--text);
}
.toc-sub{
  margin-left: 10px;
  padding-left: 10px;
  border-left: 1px solid rgba(255,255,255,0.10);
}
.toc-sub a{font-size: 14px; padding: 6px 10px;}

.hero{
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.03));
  box-shadow: var(--shadow);
  overflow:hidden;
}
.hero-inner{
  padding: 18px 18px 10px 18px;
  display:flex;
  gap: 18px;
  align-items: stretch;
}
@media (max-width: 780px){ .hero-inner{flex-direction:column} }


.hero-text p{ margin: 0 0 10px 0; color: var(--muted); }

.hero-actions{ display:flex; gap:10px; flex-wrap:wrap; margin-top: 12px; }
.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding: 10px 12px; border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.06);
  color: var(--text);
}
.btn:hover{background: rgba(255,255,255,0.09); text-decoration:none}
.btn.primary{ border-color: rgba(77,163,255,0.35); background: rgba(77,163,255,0.14); }

.hero-media{
  flex: 0 0 280px;
  border-radius: 14px;
  /*border: 1px solid rgba(255,255,255,0.10);
  background: rgba(0,0,0,0.18);*/
  display:flex; align-items:center; justify-content:center;
  padding: 10px;
}
.hero-media img{
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  filter: saturate(1.05);
}

.main{
  margin-top: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.04);
  box-shadow: var(--shadow);
  padding: 18px;
}

section{padding: 6px 0 18px 0; border-bottom: 1px solid rgba(255,255,255,0.08);}
section:last-child{border-bottom:none}

h2{margin: 14px 0 10px 0; font-size: 22px; line-height: 1.25;}
p{margin: 10px 0; color: var(--text)}

.doc-list{margin: 10px 0 14px 18px; padding: 0;}
.doc-list li{margin: 8px 0; color: var(--text);}

.doc-figure{
  margin: 12px 0; padding: 10px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(0,0,0,0.18);
}
.doc-figure img{width: 100%; height: auto; border-radius: 12px; display:block;}
.doc-figure figcaption{margin-top: 8px; color: var(--muted); font-size: 13px;}

.callout{
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.05);
  border-radius: 14px;
  padding: 12px 12px;
  margin: 12px 0;
}
.callout-title{font-weight: 800; margin-bottom: 6px;}
.callout-body{color: var(--muted)}

.code-block{
  margin: 12px 0; padding: 12px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(0,0,0,0.25);
  overflow:auto;
  color: rgba(255,255,255,0.88);
}

.step details > summary{cursor:pointer; list-style:none;}
.step details > summary::-webkit-details-marker{display:none}
.step details > summary h2{display:inline; margin:0}
.step-body{margin-top: 8px;}

.footer{
  margin-top: 14px;
  display:flex;
  justify-content:space-between;
  gap: 12px;
  flex-wrap:wrap;
  color: var(--faint);
  font-size: 13px;
}



/* =========================
   Doly Docs polish pack v3
   - Nice sidebar scrollbar
   - Static background (no scroll shimmer)
   - Link colors aligned with robotdoly.github.io/DOLY-DIY
   - Mobile auto-collapse sidebar (drawer)
   - Light/Dark toggle (saved to localStorage)
   ========================= */

:root{
  --accent: #2f6fff;
  --accent2: #5c8dff;
  --accent-hover: #1f56d8;
}

/* Theme tokens */
body.theme-dark{
  --bg: #0b0f19;
  --text: rgba(255,255,255,0.92);
  --muted: rgba(255,255,255,0.72);
  --faint: rgba(255,255,255,0.55);
  --border: rgba(255,255,255,0.12);
}
body.theme-light{
  --bg: #f7f8fb;
  --text: rgba(10,12,18,0.92);
  --muted: rgba(10,12,18,0.70);
  --faint: rgba(10,12,18,0.55);
  --border: rgba(10,12,18,0.12);
}

/* Links */
a{ color: var(--accent); font-weight: 500; }
a:hover{ color: var(--accent-hover); text-decoration: none; }

/* TOC active state */
.toc a.active{
  background: rgba(47,111,255,0.15);
  border-color: rgba(47,111,255,0.35);
  color: #ffffff;
}

/* Static background */
body{
  background: var(--bg) !important;
  background-attachment: fixed;
}
body::before{
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(900px 500px at 15% -10%, rgba(47,111,255,0.25), transparent 60%),
    radial-gradient(900px 500px at 95% 10%, rgba(100,140,255,0.18), transparent 60%);
  pointer-events: none;
}
body.theme-light::before{
  background:
    radial-gradient(900px 500px at 15% -10%, rgba(47,111,255,0.18), transparent 60%),
    radial-gradient(900px 500px at 95% 10%, rgba(100,140,255,0.12), transparent 60%);
}

/* Sidebar scrollbar */
.sidebar{
  scrollbar-width: thin;
  scrollbar-color: var(--accent) rgba(255,255,255,0.05);
}
.sidebar::-webkit-scrollbar{ width: 8px; }
.sidebar::-webkit-scrollbar-track{
  background: rgba(255,255,255,0.05);
  border-radius: 10px;
}
.sidebar::-webkit-scrollbar-thumb{
  background: linear-gradient(180deg, var(--accent), var(--accent2));
  border-radius: 10px;
  border: 2px solid rgba(0,0,0,0.20);
}
.sidebar::-webkit-scrollbar-thumb:hover{
  background: linear-gradient(180deg, var(--accent-hover), var(--accent2));
}

/* Topbar controls */
.topbar-inner{ gap: 12px; }
.topbar-spacer{ flex: 1 1 auto; }

.icon-btn{
  appearance: none;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  border-radius: 12px;
  padding: 10px 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.icon-btn:hover{ background: rgba(255,255,255,0.10); }
.icon-btn:active{ transform: translateY(1px); }

.icon-lines{
  width: 18px; height: 12px; display:block; position: relative;
}
.icon-lines::before{
  content:"";
  position:absolute; left:0; right:0; top:0;
  height: 2px; border-radius: 999px;
  background: rgba(255,255,255,0.85);
  box-shadow: 0 5px 0 rgba(255,255,255,0.85), 0 10px 0 rgba(255,255,255,0.85);
}

.icon-x{
  width: 14px; height: 14px; position: relative; display:block;
}
.icon-x::before,.icon-x::after{
  content:""; position:absolute; left:50%; top:50%;
  width: 14px; height: 2px; border-radius:999px;
  background: rgba(255,255,255,0.85);
  transform-origin:center;
}
.icon-x::before{ transform: translate(-50%,-50%) rotate(45deg); }
.icon-x::after{ transform: translate(-50%,-50%) rotate(-45deg); }

.icon-sunmoon{
  width: 18px; height: 18px; display:block;
  background: currentColor;
  -webkit-mask: radial-gradient(circle at 30% 30%, transparent 28%, #000 30%) ,
                radial-gradient(circle at 50% 50%, #000 52%, transparent 54%);
  mask: radial-gradient(circle at 30% 30%, transparent 28%, #000 30%) ,
        radial-gradient(circle at 50% 50%, #000 52%, transparent 54%);
  opacity: 0.9;
}

.overlay{
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(2px);
  z-index: 25;
}

/* Sidebar header (mobile) */
.sidebar-head{
  display:none;
  align-items:center;
  justify-content:space-between;
  gap: 10px;
  margin-bottom: 10px;
}
.sidebar-title{
  color: var(--muted);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.2px;
}

/* Mobile: auto-collapse sidebar into a drawer */
@media (max-width: 980px){
  .layout{ grid-template-columns: 1fr !important; }

  .sidebar{
    position: fixed !important;
    top: 62px;
    left: 12px;
    right: 12px;
    height: calc(100vh - 86px) !important;
    max-width: 520px;
    transform: translateY(-10px);
    opacity: 0;
    pointer-events: none;
    transition: transform .18s ease, opacity .18s ease;
    z-index: 26;
  }
  .sidebar-head{ display:flex; }
  body.nav-open .sidebar{
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
}

/* Light theme surface tweaks */
/* topbar is brand in both themes (v7) */
body.theme-light .badge{ background: rgba(10,12,18,0.05); color: rgba(10,12,18,0.70); }
body.theme-light .sidebar,
body.theme-light .hero,
body.theme-light .main{
  background: rgba(255,255,255,0.78);
  border-color: rgba(10,12,18,0.10);
}
body.theme-light .doc-figure,
body.theme-light .code-block,
body.theme-light .callout{
  background: rgba(10,12,18,0.04);
  border-color: rgba(10,12,18,0.10);
}
body.theme-light .toc a{ color: rgba(10,12,18,0.70); }
body.theme-light .toc a:hover{ background: rgba(10,12,18,0.04); border-color: rgba(10,12,18,0.08); }
body.theme-light .overlay{ background: rgba(10,12,18,0.35); }
body.theme-light .icon-lines::before{
  background: rgba(10,12,18,0.75);
  box-shadow: 0 5px 0 rgba(10,12,18,0.75), 0 10px 0 rgba(10,12,18,0.75);
}
body.theme-light .icon-x::before,
body.theme-light .icon-x::after{
  background: rgba(10,12,18,0.75);
}


/* ===== v5: Desktop vs Mobile sidebar controls ===== */
/* Desktop: hide mobile-only controls */
#sidebarToggle { display: none; }
.overlay { display: none; }
.sidebar-head { display: none; }

/* Mobile: show them */
@media (max-width: 980px){
  #sidebarToggle { display: inline-flex; }
  .overlay { display: none; }
  .sidebar-head { display: flex; }
}


/* ===== v6: Appendix + tables ===== */
.toc-divider{
  margin-top: 10px;
  padding: 8px 10px;
  color: var(--faint);
  font-size: 12px;
  letter-spacing: 0.25px;
  text-transform: uppercase;
}
.toc-divider span{
  display:block;
  border-top: 1px solid rgba(255,255,255,0.10);
  padding-top: 10px;
}

.table-wrap{
  margin: 12px 0;
  overflow:auto;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(0,0,0,0.18);
}
.doc-table{
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
}
.doc-table th, .doc-table td{
  padding: 12px 12px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  vertical-align: top;
  text-align: left;
}
.doc-table th{
  font-size: 13px;
  color: var(--muted);
  font-weight: 800;
  background: rgba(255,255,255,0.04);
}
.doc-table td{ color: var(--text); }

body.theme-light .table-wrap{
  background: rgba(10,12,18,0.04);
  border-color: rgba(10,12,18,0.10);
}
body.theme-light .doc-table th{
  background: rgba(10,12,18,0.03);
  border-bottom-color: rgba(10,12,18,0.10);
}
body.theme-light .doc-table td{
  border-bottom-color: rgba(10,12,18,0.08);
}


/* ===== v7: Brand styling (#007acc) ===== */
:root{
  --brand: #007acc;
  --brand-hover: #0063a3;
  --accent: var(--brand);
  --accent2: #35a7ff;
  --accent-hover: var(--brand-hover);
}

/* Top bar uses brand color in BOTH themes */
.topbar{
  background: var(--brand) !important;
  border-bottom: none !important;
  backdrop-filter: none !important;
}
.topbar-inner{ color: rgba(255,255,255,0.95); }
.brand{ color: rgba(255,255,255,0.95); }
.dot{
  background: rgba(255,255,255,0.95) !important;
  box-shadow: 0 0 0 3px rgba(255,255,255,0.22) !important;
}
.badge{
  border-color: rgba(255,255,255,0.28) !important;
  background: rgba(255,255,255,0.14) !important;
  color: rgba(255,255,255,0.92) !important;
}

/* Buttons in topbar */
.icon-btn{
  border-color: rgba(255,255,255,0.28) !important;
  background: rgba(255,255,255,0.14) !important;
  color: rgba(255,255,255,0.92) !important;
}
.icon-btn:hover{ background: rgba(255,255,255,0.22) !important; }

/* Better icons */
.icon{ width: 18px; height: 18px; display:block; }
#themeToggle{ gap: 8px; }
#themeToggle .icon{ margin: 0; }
#themeToggle .icon-sun, #themeToggle .icon-moon{ display:none; }
body.theme-light #themeToggle .icon-moon{ display:block; } /* show moon in light */
body.theme-dark  #themeToggle .icon-sun{ display:block; }  /* show sun in dark */

/* Headings on content area in brand color */
.hero-text h1{ color: var(--text); } /* keep hero title readable on dark card */
.main h2{ color: var(--brand); }
.step summary h2{ color: var(--brand); }

/* Ensure summary text doesn't inherit unwanted colors */
h2{ scroll-margin-top: 90px; }

/* Links already use --accent; keep consistent */


/* ===== v8: Anchor offset fix ===== */
section, .step { scroll-margin-top: 96px; } /* fallback for browsers without JS interception */

/* ===== v8: Better theme icons ===== */
#themeToggle .icon{ width: 18px; height: 18px; }
#themeToggle{ padding-left: 12px; padding-right: 12px; }


/* ===== v9: disable smooth scrolling for exact TOC jumps ===== */
html { scroll-behavior: auto; }


/* ===== v10: Center hero H1 + theme-based color ===== */
.hero-text{ text-align: center; }
.hero-actions{ justify-content: center; }

.hero-text h1{
  margin: 12px 0 12px 0;
  font-size: 28px;
  line-height: 1.15;
  color: var(--text);
}

/* keep brand feel but adapt to mode */
body.theme-dark .hero-text h1{ color: var(--text); }
body.theme-light .hero-text h1{ color: rgba(10,12,18,0.92); }


/* ===== v11: Folder tree (no code block) ===== */
.folder-tree{
  margin: 14px 0 6px 0;
  padding: 12px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(0,0,0,0.18);
  overflow-x: auto;
}
.folder-item{
  position: relative;
  padding: 6px 10px 6px 26px;
  white-space: nowrap;
  color: var(--text);
  font-size: 15px;
  line-height: 1.35;
}
.folder-item::before{
  content: "";
  position: absolute;
  left: 10px;
  top: 50%;
  width: 8px;
  height: 8px;
  transform: translateY(-50%);
  border-radius: 2px;
  background: rgba(255,255,255,0.22);
}
.folder-item.group .folder-label{
  font-weight: 800;
}
.folder-item .folder-label{
  font-weight: 500;
}

/* indentation levels */
.folder-item.lvl-0{ padding-left: 22px; }
.folder-item.lvl-1{ padding-left: 44px; }
.folder-item.lvl-2{ padding-left: 66px; }
.folder-item.lvl-3{ padding-left: 88px; }
.folder-item.lvl-4{ padding-left: 110px; }

/* subtle connectors */
.folder-item.lvl-1::after,
.folder-item.lvl-2::after,
.folder-item.lvl-3::after,
.folder-item.lvl-4::after{
  content:"";
  position:absolute;
  left: 14px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: rgba(255,255,255,0.08);
}
.folder-item.lvl-2::after{ left: 36px; }
.folder-item.lvl-3::after{ left: 58px; }
.folder-item.lvl-4::after{ left: 80px; }

body.theme-light .folder-tree{
  background: rgba(10,12,18,0.04);
  border-color: rgba(10,12,18,0.10);
}
body.theme-light .folder-item::before{
  background: rgba(10,12,18,0.20);
}
body.theme-light .folder-item.lvl-1::after,
body.theme-light .folder-item.lvl-2::after,
body.theme-light .folder-item.lvl-3::after,
body.theme-light .folder-item.lvl-4::after{
  background: rgba(10,12,18,0.08);
}


/* ===== v12: Keep top bar always visible + brand link ===== */
.topbar{
  position: fixed !important;
  top: 0; left: 0; right: 0;
  z-index: 1000 !important;
}
.layout{
  /* offset for fixed topbar */
  padding-top: 78px !important;
}
@media (max-width: 980px){
  .layout{ padding-top: 78px !important; }
  /* drawer sidebar should start below fixed bar */
  .sidebar{ top: 78px !important; height: calc(100vh - 98px) !important; }
}

/* brand link styling */
a.brand{ text-decoration: none; }
a.brand:hover{ text-decoration: none; opacity: 0.92; }


/* ===== v13: Brand link color locked (white) ===== */
a.brand, a.brand:visited, a.brand:hover, a.brand:active, a.brand:focus{
  color: rgba(255,255,255,0.95) !important;
  text-decoration: none !important;
  opacity: 1 !important;
}



.doc-figure img{
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}
.doc-figure{
  display: flex;
  flex-direction: column;
  align-items: center;
}
.doc-figure figcaption{
  max-width: 589px;
}


/* ===== v14: White image panels ===== */
.doc-figure{
  background: #ffffff !important;
  border-color: rgba(0,0,0,0.12) !important;
}
.doc-figure img{
  background: #ffffff !important;
}
.doc-figure figcaption{
  color: rgba(10,12,18,0.70) !important;
}

/* keep figure panel consistent on both themes */
body.theme-dark .doc-figure{
  box-shadow: 0 10px 30px rgba(0,0,0,0.28);
}
body.theme-light .doc-figure{
  box-shadow: 0 10px 30px rgba(0,0,0,0.12);
}

/* ===== Mobile menu background opacity fix ===== */
@media (max-width: 980px){
  /* Dark mode drawer: less transparent for readability */
  body.theme-dark .sidebar{
    background: rgba(11,15,25,0.96) !important;
    border-color: rgba(255,255,255,0.14) !important;
    backdrop-filter: blur(10px);
  }

  /* Light mode drawer: solid white */
  body.theme-light .sidebar{
    background: rgba(255,255,255,0.98) !important;
    border-color: rgba(10,12,18,0.10) !important;
    backdrop-filter: blur(10px);
  }
}

/* ===== Mobile font size boost ===== */
@media (max-width: 980px){

  /* Base text */
  body{
    font-size: 18px;      /* was ~15–16 */
    line-height: 1.7;
  }

  /* Main content text */
  .main{
    font-size: 18px;
  }

  /* Headings */
  .main h2{ font-size: 24px; }
  .main h3{ font-size: 20px; }

  /* TOC / sidebar */
  .toc a{ font-size: 17px; }

  /* Lists */
  .doc-list li{ font-size: 19px; }
  .doc-list li p{ font-size: 19px; }

  /* Step titles (the collapsible step headers) */
  .step summary h2{ font-size: 20px; }
}