:root{--bg: #0a0a0a;--fg: #f5f5f5;--fg-muted: #9a9a9a;--border: #262626;--brand-gradient: linear-gradient(90deg, #ff9448, #4ddbb2);color-scheme:dark}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased}.app{display:flex;flex-direction:column;min-height:100dvh}.app-header{display:flex;align-items:center;gap:2rem;padding:1rem 1.5rem;border-bottom:1px solid var(--border)}.wordmark{font-weight:700;text-decoration:none;background:var(--brand-gradient);background-clip:text;-webkit-background-clip:text;color:transparent}.app-header nav{display:flex;flex-wrap:wrap;gap:1.25rem}.nav-link{color:var(--fg-muted);text-decoration:none;font-size:.95rem}.nav-link:hover{color:var(--fg)}.nav-link.active{color:var(--fg);font-weight:600}.app-main{flex:1;padding:2rem 1.5rem;max-width:72rem;width:100%;margin:0 auto}.app-footer{display:flex;justify-content:space-between;gap:1rem;padding:1rem 1.5rem;border-top:1px solid var(--border);color:var(--fg-muted);font-size:.85rem}.app-footer a{color:var(--fg-muted)}.placeholder h1{font-size:1.75rem;margin:0 0 1rem}.placeholder-params{display:flex;flex-direction:column;gap:.25rem;margin:0 0 1rem;font-family:ui-monospace,Geist Mono,monospace;font-size:.9rem}.placeholder-params div{display:flex;gap:.5rem}.placeholder-params dt{color:var(--fg-muted)}.placeholder-params dt:after{content:":"}.placeholder-params dd{margin:0}.placeholder-note,.page-loading{color:var(--fg-muted)}.admin-shell{display:flex;flex-direction:column;gap:1.5rem}.admin-nav{display:flex;flex-wrap:wrap;gap:1rem;padding-bottom:1rem;border-bottom:1px solid var(--border)}.admin-nav a{color:var(--fg-muted);text-decoration:none;font-size:.9rem}.admin-nav a:hover{color:var(--fg)}