:root{--bg:#0a0e27;--surface:#141833;--border:#252b4a;--text:#f5f6fa;--text-dim:#8b90b3;--grad-a:#3fc5f0;--grad-b:#3b82f6;--grad-c:#7c3aed;--danger:#e24b4a;--success:#0ea5c4}:root[data-theme=light]{--bg:#f7f8fc;--surface:#fff;--border:#e4e6f1;--text:#151a3d;--text-dim:#6b7099}*{box-sizing:border-box;margin:0;padding:0}body,html{background:var(--bg);color:var(--text);font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;line-height:1.5}h1,h2,h3{font-family:Sora,sans-serif;font-weight:700;letter-spacing:-.01em}a{color:inherit;text-decoration:none}.grad-text{background:linear-gradient(90deg,var(--grad-a),var(--grad-b),var(--grad-c));-webkit-background-clip:text;background-clip:text;color:transparent}.wrap{max-width:1180px;margin:0 auto;padding:0 32px}.btn-primary{background:linear-gradient(90deg,var(--grad-a),var(--grad-b),var(--grad-c));color:#fff;padding:13px 24px;border-radius:8px;font-weight:600;font-size:15px;border:none;cursor:pointer;display:inline-block;transition:transform .18s ease,box-shadow .18s ease}.btn-primary:hover{transform:scale(1.03);box-shadow:0 8px 20px rgba(59,130,246,.35)}.btn-ghost{color:var(--text);border:1px solid var(--border);padding:12px 22px;border-radius:8px;font-size:15px;background:transparent;cursor:pointer;display:inline-block;transition:transform .18s ease,border-color .18s ease}.btn-ghost:hover{transform:scale(1.03);border-color:var(--grad-b)}.card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:26px;transition:transform .25s ease,box-shadow .25s ease}.card:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(20,30,80,.14)}@media (max-width:860px){.wrap{padding:0 20px}}