:root[data-theme=light]{--bg: #fafafa;--bg-elevated: #ffffff;--border: #e5e5e5;--text: #1a1a1a;--text-muted: #666666;--text-faint: #999999;--accent: #1a1a1a;--accent-text: #ffffff;--sidebar-bg: #ffffff;--sidebar-active: #f0f0f0;--pass-bg: #e9f7ef;--pass-border: #b7e2c6;--pass-text: #1baf7a;--warn-bg: #fff8e1;--warn-border: #f0dc9a;--warn-text: #b8860b;--fail-bg: #fdecea;--fail-border: #f3b7b0;--fail-text: #c0392b}:root[data-theme=dark]{--bg: #14161a;--bg-elevated: #1c1f24;--border: #2b2f36;--text: #f2f2f2;--text-muted: #9aa0a6;--text-faint: #6b7076;--accent: #f2f2f2;--accent-text: #14161a;--sidebar-bg: #191c21;--sidebar-active: #262a31;--pass-bg: #163227;--pass-border: #1f4d38;--pass-text: #4fd8a0;--warn-bg: #332a12;--warn-border: #4d3f1a;--warn-text: #e0b84a;--fail-bg: #34191a;--fail-border: #4d2325;--fail-text: #e5695f}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}a{color:inherit}button{font-family:inherit;cursor:pointer}input{font-family:inherit}.app-shell{display:flex;min-height:100vh}.sidebar{width:220px;flex-shrink:0;background:var(--sidebar-bg);border-right:1px solid var(--border);padding:20px 12px}.sidebar-title{font-size:14px;font-weight:600;padding:0 10px 20px;color:var(--text)}.sidebar-nav{list-style:none;margin:0;padding:0}.sidebar-link{display:block;padding:9px 10px;border-radius:8px;font-size:14px;color:var(--text-muted);text-decoration:none;margin-bottom:2px}.sidebar-link:hover{background:var(--sidebar-active);color:var(--text)}.sidebar-link.active{background:var(--sidebar-active);color:var(--text);font-weight:600}.app-main{flex:1;min-width:0;display:flex;flex-direction:column}.app-topbar{display:flex;align-items:center;justify-content:flex-end;padding:14px 24px;border-bottom:1px solid var(--border)}.app-topbar-right{display:flex;align-items:center;gap:14px}.app-identity{font-size:12px;color:var(--text-faint)}.theme-toggle{font-size:13px;padding:6px 12px;border-radius:6px;border:1px solid var(--border);background:var(--bg-elevated);color:var(--text)}.theme-toggle:hover{background:var(--sidebar-active)}.app-content{flex:1;padding:24px;max-width:1400px;width:100%}