:root{--color-bg:#f8fafc;--color-fg:#0f172a;--color-primary:#0f766e;--color-primary-hover:#115e59;--color-on-primary:#ffffff;--color-muted:#64748b;--color-border:#e2e8f0;--color-surface:#ffffff;--focus-ring:0 0 0 3px rgba(13,148,136,0.4);font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}[data-theme=dark]{color-scheme:dark;--color-bg:#0f172a;--color-fg:#f1f5f9;--color-primary:#2dd4bf;--color-primary-hover:#5eead4;--color-on-primary:#0f172a;--color-muted:#94a3b8;--color-border:#1e293b;--color-surface:#1e293b}@media (prefers-color-scheme:dark){:root[data-theme=system]{color-scheme:dark;--color-bg:#0f172a;--color-fg:#f1f5f9;--color-primary:#2dd4bf;--color-primary-hover:#5eead4;--color-on-primary:#0f172a;--color-muted:#94a3b8;--color-border:#1e293b;--color-surface:#1e293b}}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--color-bg);color:var(--color-fg);line-height:1.6;transition:background .2s,color .2s}a{color:var(--color-primary);text-decoration:none}a:hover{color:var(--color-primary-hover);text-decoration:underline}a:focus-visible,button:focus-visible{outline:none;box-shadow:var(--focus-ring);border-radius:4px}button{cursor:pointer;font:inherit}.container{max-width:960px;margin:0 auto;padding:0 1rem}.header{display:flex;align-items:center;justify-content:space-between;padding:1rem 0;border-bottom:1px solid var(--color-border);flex-wrap:wrap;gap:.75rem}.brand{font-weight:700;font-size:1.25rem;color:var(--color-primary);letter-spacing:-.02em}.nav{display:flex;gap:1rem;align-items:center;flex-wrap:wrap}.nav-link{color:var(--color-fg);font-weight:500}.cta{background:var(--color-primary);color:var(--color-on-primary);padding:.5rem 1rem;border-radius:6px;font-weight:600;border:none}.cta:hover{background:var(--color-primary-hover);text-decoration:none}.hero{padding:3rem 0;text-align:center}.hero h1{font-size:clamp(1.75rem,4vw,2.5rem);margin-bottom:.75rem}.hero p{color:var(--color-muted);max-width:600px;margin:0 auto 1.5rem}.search-disabled{border:1px dashed var(--color-border);padding:1rem;border-radius:8px;color:var(--color-muted);max-width:500px;margin:0 auto}.search-disabled,.theme-toggle{background:var(--color-surface)}.theme-toggle{display:flex;gap:.25rem;border:1px solid var(--color-border);border-radius:6px;padding:.25rem}.theme-btn{background:transparent;border:none;padding:.35rem .6rem;border-radius:4px;color:var(--color-muted);font-size:.85rem}.theme-btn[aria-pressed=true]{background:var(--color-primary);color:var(--color-on-primary)}.locked-area{text-align:center;padding:4rem 1rem}.locked-area h1{margin-bottom:.5rem}.locked-area p{color:var(--color-muted)}.icon-logo{width:28px;height:28px;vertical-align:middle;margin-right:.4rem;fill:var(--color-primary)}@media (max-width:600px){.header{flex-direction:column;align-items:flex-start}.nav{width:100%;justify-content:space-between}}