:root{--background:#0a0a0a;--foreground:#ededed;--accent:#fff;--accent-muted:#a0a0a0;--card-bg:#121212;--border:#262626;--primary-gradient:linear-gradient(135deg,#fff,#a0a0a0);--font-sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}*{box-sizing:border-box;padding:0;margin:0}body{background:var(--background);color:var(--foreground);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}h1,h2,h3{font-weight:600;letter-spacing:-.02em}.premium-card{background:var(--card-bg);border:1px solid var(--border);border-radius:12px;padding:2rem;box-shadow:0 10px 30px rgba(0,0,0,.5)}.btn-primary{background:var(--accent);color:#000;padding:.8rem 1.5rem;border-radius:8px;border:none;font-weight:600;cursor:pointer;transition:all .2s ease}.btn-primary:hover{opacity:.9;transform:translateY(-1px)}.btn-secondary{background:transparent;color:var(--accent);padding:.8rem 1.5rem;border-radius:8px;border:1px solid var(--border);font-weight:600;cursor:pointer;transition:all .2s ease}.btn-secondary:hover{background:hsla(0,0%,100%,.05)}.progress-bar{width:100%;height:4px;background:var(--border);border-radius:2px;overflow:hidden}.progress-fill{height:100%;background:var(--accent);transition:width .3s ease}