:root{--background:#080c16;--foreground:#f1f5f9;--card:#0d1321;--card-foreground:#f1f5f9;--primary:#1fd5f9;--primary-foreground:#080c16;--secondary:#191f2e;--secondary-foreground:#dbe6f0;--muted-foreground:#7588a3;--accent:#8e5eed;--accent-foreground:#f8fafc;--destructive:#ef4343;--success:#21c45d;--border:#1d2435;--ring:#1fd5f9;--radius:10px;--gradient-primary:linear-gradient(135deg,#1fd5f9,#8e5eed);--shadow-glow:0 0 32px -8px rgba(31,213,249,0.35)}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Arial,sans-serif;background:var(--background)}body,h1,h2,h3{color:var(--foreground)}a{color:var(--primary)}table{border-collapse:collapse;width:100%}td,th{text-align:left;padding:8px 12px;border-bottom:1px solid var(--border)}button,input,select,textarea{font:inherit}input,select,textarea{background:var(--secondary);color:var(--secondary-foreground);border:1px solid var(--border);border-radius:6px;padding:8px 10px}input::placeholder,textarea::placeholder{color:var(--muted-foreground)}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--ring);box-shadow:0 0 0 2px rgba(31,213,249,.25)}.card{border:1px solid var(--border);border-radius:var(--radius);background:var(--card);color:var(--card-foreground);padding:16px}.btn{display:inline-block;padding:8px 16px;border-radius:6px;border:1px solid transparent;background:var(--gradient-primary);color:var(--primary-foreground);font-weight:600;cursor:pointer;text-decoration:none;transition:box-shadow .15s ease,opacity .15s ease}.btn:hover{box-shadow:var(--shadow-glow)}.btn-secondary{background:transparent;border:1px solid var(--border);color:var(--foreground)}.btn-secondary:hover{border-color:var(--primary);box-shadow:none}.error{color:var(--destructive)}.success{color:var(--success)}.app-shell{display:flex;min-height:100vh}.topbar{display:none}.sidebar{width:240px;flex-shrink:0;background:var(--card);border-right:1px solid var(--border);padding:20px 16px;display:flex;flex-direction:column;gap:24px;position:-webkit-sticky;position:sticky;top:0;height:100vh;overflow-y:auto}.sidebar-brand{font-weight:700;font-size:18px;background:var(--gradient-primary);-webkit-background-clip:text;background-clip:text;color:transparent;width:-moz-fit-content;width:fit-content}.sidebar-nav{display:flex;flex-direction:column;gap:4px;flex:1 1}.nav-link{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:8px;color:var(--muted-foreground);text-decoration:none;font-size:14px;font-weight:500}.nav-link:hover{background:var(--secondary);color:var(--foreground)}.nav-link.active{background:var(--secondary);color:var(--primary)}.sidebar-footer{border-top:1px solid var(--border);padding-top:16px;display:flex;flex-direction:column;gap:8px}.sidebar-user-name{font-size:14px;font-weight:600;color:var(--foreground)}.sidebar-user-role{font-size:12px;color:var(--muted-foreground);text-transform:capitalize}.content{flex:1 1;min-width:0;padding:28px 32px}.backdrop{display:none}.menu-btn{background:none;border:none;color:var(--foreground);cursor:pointer;padding:6px;display:flex}@media (max-width:860px){.topbar{display:flex;align-items:center;gap:12px;padding:12px 16px;border-bottom:1px solid var(--border);background:var(--card);position:-webkit-sticky;position:sticky;top:0;z-index:30}.topbar-brand{font-weight:700}.app-shell{flex-direction:column}.sidebar{position:fixed;top:0;left:0;height:100vh;transform:translateX(-100%);transition:transform .2s ease;z-index:50;box-shadow:0 0 40px rgba(0,0,0,.4)}.sidebar.open{transform:translateX(0)}.backdrop{display:block;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:40}.content{padding:20px 16px}}@media (max-width:640px){table{display:block;overflow-x:auto;white-space:nowrap}}