:root{--text-primary:#1a1a1a;--text-dark:#2a2a2a;--text-body:#333;--text-mid:#444;--text-tertiary:#666;--bg-white:#fff;--bg-section-alt:#f5f5f0;--bg-input:#f8f8f5;--border:#d8d8d2;--border-light:#eae9e3;--accent:#1a3a5c;--accent-dim:rgba(26,58,92,.08);--error:#c62828;--radius-sm:6px;--radius-md:10px}*{box-sizing:border-box}body,html{margin:0;padding:0}body{font-family:Poppins,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:18px;line-height:1.6;color:var(--text-body);background:var(--bg-white);-webkit-font-smoothing:antialiased}.mono,code{font-family:JetBrains Mono,Courier New,monospace}.nav{display:flex;align-items:center;justify-content:space-between;padding:16px 12px;max-width:1440px;margin:0 auto;border-bottom:1px solid var(--border-light);position:-webkit-sticky;position:sticky;top:0;background:hsla(0,0%,100%,.97);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:100}.nav-logo{font-family:JetBrains Mono,monospace;font-size:18px;font-weight:600;color:var(--text-primary);text-decoration:none;letter-spacing:.02em}.nav-logo:hover{color:var(--accent)}.nav-meta{font-size:18px;color:var(--text-tertiary);font-weight:500}.btn-primary{display:inline-flex;align-items:center;gap:8px;padding:16px 36px;background:var(--text-primary);color:#fff;border:none;border-radius:var(--radius-sm);font-size:18px;font-family:inherit;font-weight:700;cursor:pointer;transition:background .2s ease;text-decoration:none}.btn-primary:hover{background:var(--accent)}.btn-primary:disabled{background:var(--text-tertiary);cursor:not-allowed}.btn-outline{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;background:transparent;color:var(--text-body);border:1px solid var(--border);border-radius:var(--radius-sm);font-size:18px;font-family:inherit;font-weight:600;cursor:pointer;transition:all .2s ease;text-decoration:none}.btn-outline:hover{border-color:var(--text-primary);color:var(--text-primary)}.btn-link{font-size:17px;color:var(--text-tertiary);text-decoration:underline;text-underline-offset:3px;background:transparent;border:none;font-family:inherit;cursor:pointer;padding:8px 0}.btn-link:hover{color:var(--text-primary)}.footer{border-top:1px solid var(--border-light);padding:40px 12px 32px;text-align:center}.footer-links{font-size:18px;color:var(--text-tertiary);margin-bottom:12px}.footer-links a{color:var(--text-mid);text-decoration:none;margin:0 12px;font-size:18px}.footer-links a:hover{color:var(--text-primary)}.footer-copyright{font-size:16px;color:var(--text-tertiary);margin:0}.section-alt-wrap{background:var(--bg-section-alt)}.section{padding:56px 12px;max-width:1440px;margin:0 auto}.section-label{display:block;text-align:center;font-family:JetBrains Mono,monospace;font-size:18px;font-weight:600;color:var(--accent);letter-spacing:.1em;text-transform:uppercase;margin-bottom:14px}.section h2{text-align:center;font-size:36px;font-weight:700;color:var(--text-primary);margin:0 0 18px;letter-spacing:-.01em;line-height:1.25}.section-desc{text-align:center;max-width:800px;margin:0 auto 48px;font-size:20px;color:var(--text-mid);line-height:1.55}body.ip-guarded{-webkit-user-select:none;-moz-user-select:none;user-select:none}body.ip-guarded [contenteditable=true],body.ip-guarded input,body.ip-guarded textarea{-webkit-user-select:text;-moz-user-select:text;user-select:text}