*{margin:0;padding:0;box-sizing:border-box;}
:root{
  --sidebar-w:292px;
  --primary:#2F3F5C;
  --accent:#F2531B;
  --accent-light:#FDEDE8;
  --text:#1e293b;
  --text-secondary:#64748b;
  --border:#e2e8f0;
  --bg:#ffffff;
  --bg-alt:#f8fafc;
  --code-bg:#0f172a;
  --code-text:#e2e8f0;
  --green:#059669;
  --blue:#2563EB;
  --amber:#d97706;
  --red:#dc2626;
  --purple:#7c3aed;
}
body{font-family:'Inter',system-ui,sans-serif;color:var(--text);background:var(--bg);line-height:1.6;font-size:14px;}
code,pre,.mono{font-family:'JetBrains Mono','Fira Code',monospace!important;}

/* Layout */
.layout{display:flex;min-height:100vh;}
.sidebar{width:var(--sidebar-w);position:fixed;top:0;left:0;bottom:0;background:var(--bg);border-right:1px solid var(--border);overflow-y:auto;z-index:50;display:flex;flex-direction:column;}
.main{margin-left:var(--sidebar-w);flex:1;min-width:0;}

/* Sidebar */
.sidebar-header{padding:16px 16px 12px;border-bottom:1px solid var(--border);flex-shrink:0;}
.sidebar-logo{display:flex;align-items:center;gap:8px;margin-bottom:8px;}
.sidebar-logo img{height:24px;flex-shrink:0;}
.sidebar-logo span{font-weight:700;font-size:14px;color:var(--primary);white-space:nowrap;}
.back-link{display:inline-flex;align-items:center;gap:4px;font-size:11px;font-weight:600;color:var(--accent);text-decoration:none;padding:4px 0;}
.back-link:hover{text-decoration:underline;}

.sidebar-nav{flex:1;overflow-y:scroll;padding:8px 0;}
.nav-link{display:block;padding:6px 16px;font-size:12px;color:var(--text-secondary);text-decoration:none;border-left:2px solid transparent;transition:all 0.1s;}
.nav-link:hover{background:var(--bg-alt);color:var(--text);}
.nav-link.active{border-left-color:var(--accent);color:var(--accent);font-weight:600;background:var(--accent-light);}
.nav-section-title{font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:0.05em;color:var(--text-secondary);padding:12px 16px 4px;}

/* Content */
.content-section{display:grid;grid-template-columns:1fr 1fr;min-height:0;border-bottom:1px solid var(--border);}
.content-section:last-child{border-bottom:none;}
.content-left{padding:32px 36px;max-width:100%;overflow-x:hidden;}
.content-right{background:var(--code-bg);padding:32px 28px;color:var(--code-text);overflow-x:auto;}
.content-section.full-width{grid-template-columns:1fr;}
.content-section.full-width .content-left{max-width:860px;}

h1{font-size:28px;font-weight:800;margin-bottom:8px;color:var(--primary);}
h2{font-size:22px;font-weight:700;margin-bottom:12px;color:var(--primary);}
h3{font-size:16px;font-weight:600;margin-bottom:8px;margin-top:20px;}
p{margin-bottom:12px;color:var(--text-secondary);}
p strong{color:var(--text);}

/* Tables */
table{width:100%;border-collapse:collapse;font-size:13px;margin:16px 0;}
th{text-align:left;padding:8px 12px;background:var(--bg-alt);border:1px solid var(--border);font-weight:600;font-size:11px;text-transform:uppercase;letter-spacing:0.03em;color:var(--text-secondary);}
td{padding:8px 12px;border:1px solid var(--border);vertical-align:top;}
tr:hover td{background:var(--bg-alt);}

/* Code */
.code-block{background:var(--code-bg);border-radius:8px;overflow:hidden;margin:12px 0;border:1px solid #1e293b;}
.code-block-header{display:flex;justify-content:space-between;align-items:center;padding:6px 12px;background:#1e293b;border-bottom:1px solid #334155;}
.code-block-title{font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:0.05em;color:#94a3b8;}
.code-copy{background:none;border:1px solid #475569;color:#94a3b8;padding:2px 8px;border-radius:4px;font-size:10px;cursor:pointer;font-family:inherit;}
.code-copy:hover{border-color:#94a3b8;color:#e2e8f0;}
.code-block pre{padding:12px;font-size:12px;line-height:1.5;overflow-x:auto;color:var(--code-text);}
code{background:var(--bg-alt);padding:1px 5px;border-radius:3px;font-size:12px;border:1px solid var(--border);}
.content-right code{background:#1e293b;border-color:#334155;color:#e2e8f0;}

/* Badges */
.badge{display:inline-block;font-size:10px;font-weight:700;padding:2px 8px;border-radius:4px;text-transform:uppercase;letter-spacing:0.03em;}
.badge-breaking{background:#fef2f2;color:var(--red);border:1px solid #fecaca;}
.badge-new{background:#ecfdf5;color:var(--green);border:1px solid #a7f3d0;}
.badge-changed{background:#fefce8;color:var(--amber);border:1px solid #fde68a;}

/* Callouts */
.callout{padding:12px 16px;border-radius:8px;margin:16px 0;border-left:3px solid;}
.callout-warning{background:#fefce8;border-color:var(--amber);color:#92400e;}
.callout-info{background:#eff6ff;border-color:var(--blue);color:#1e40af;}
.callout-tip{background:#ecfdf5;border-color:var(--green);color:#065f46;}
.callout h4{font-size:12px;font-weight:700;margin-bottom:4px;}
.callout p{color:inherit;margin-bottom:0;}

/* Arrow */
.arrow{color:var(--accent);font-weight:700;}

/* Scrollbar */
::-webkit-scrollbar{width:6px;height:6px;}
::-webkit-scrollbar-track{background:transparent;}
::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:3px;}
::-webkit-scrollbar-thumb:hover{background:#94a3b8;}

/* Theme toggle */
.theme-toggle{
  background:none;border:1px solid var(--border);border-radius:6px;
  padding:5px 7px;cursor:pointer;color:var(--text-secondary);
  display:inline-flex;align-items:center;justify-content:center;
  transition:all 0.15s;margin-top:6px;
}
.theme-toggle:hover{background:var(--bg-alt);color:var(--text);}
.theme-icon.sun{display:none;}
.theme-icon.moon{display:block;}
[data-theme="dark"] .theme-icon.sun{display:block;}
[data-theme="dark"] .theme-icon.moon{display:none;}

/* Dark mode */
[data-theme="dark"]{
  --primary:#93a8c4;
  --text:#e2e8f0;
  --text-secondary:#94a3b8;
  --border:#334155;
  --bg:#0f172a;
  --bg-alt:#1e293b;
  --accent-light:rgba(242,83,27,0.18);
}
.logo-light{display:block;}
.logo-dark{display:none;}
[data-theme="dark"] .logo-light{display:none;}
[data-theme="dark"] .logo-dark{display:block;}
[data-theme="dark"] table th{background:#1e293b;color:#94a3b8;}
[data-theme="dark"] tr:hover td{background:#1e293b;}
[data-theme="dark"] .callout-warning{background:rgba(245,158,11,0.1);border-left-color:#f59e0b;color:#fcd34d;}
[data-theme="dark"] .callout-warning p{color:#fcd34d;}
[data-theme="dark"] .callout-info{background:rgba(33,150,243,0.1);border-left-color:#3b82f6;color:#93c5fd;}
[data-theme="dark"] .callout-info p{color:#93c5fd;}
[data-theme="dark"] .callout-tip{background:rgba(5,150,105,0.1);border-left-color:#10b981;color:#6ee7b7;}
[data-theme="dark"] .callout-tip p{color:#6ee7b7;}
[data-theme="dark"] .badge-breaking{background:rgba(220,38,38,0.15);color:#f87171;border-color:rgba(220,38,38,0.3);}
[data-theme="dark"] .badge-new{background:rgba(5,150,105,0.15);color:#34d399;border-color:rgba(5,150,105,0.3);}
[data-theme="dark"] .badge-changed{background:rgba(217,119,6,0.15);color:#fbbf24;border-color:rgba(217,119,6,0.3);}
[data-theme="dark"] ::-webkit-scrollbar-thumb{background:#475569;}
[data-theme="dark"] ::-webkit-scrollbar-thumb:hover{background:#64748b;}