:root{--color-bg:#131313;--color-card:#1a1a1a;--color-border:#2a2a2a;--color-text:#ffffff;--color-text-muted:#888888;--color-text-subtle:#555555;--color-accent:#F5A623;--color-accent-hover:#ffb84d;--color-success:#34C759;--color-link:#007AFF}*{box-sizing:border-box;margin:0;padding:0}body,html{background:var(--color-bg);color:var(--color-text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;font-size:16px;line-height:1.5;min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:var(--color-link);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:640px;margin:0 auto;padding:0 24px}h1{font-size:2.5rem;font-weight:700;letter-spacing:-.02em}h2{font-size:1.5rem;margin-bottom:1rem}h2,h3{font-weight:600}h3{font-size:1.125rem;margin-bottom:.5rem}p{color:var(--color-text-muted)}.card{background:var(--color-card);border:1px solid var(--color-border);border-radius:12px;padding:24px}.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--color-accent);color:#000;font-weight:600;font-size:1rem;padding:12px 24px;border-radius:8px;border:none;cursor:pointer;transition:background .2s}.button:hover{background:var(--color-accent-hover);text-decoration:none}.button-secondary{background:var(--color-card);color:var(--color-text);border:1px solid var(--color-border)}.button-secondary:hover{background:var(--color-border)}.badge{display:inline-block;background:var(--color-accent);color:#000;font-size:.75rem;font-weight:700;padding:4px 8px;border-radius:4px;text-transform:uppercase;letter-spacing:.05em}.step{display:flex;gap:16px;align-items:flex-start}.step-number{display:flex;align-items:center;justify-content:center;width:28px;height:28px;background:var(--color-border);border-radius:50%;font-weight:700;font-size:.875rem;flex-shrink:0}.step-content{flex:1 1}.section{padding:48px 0;border-bottom:1px solid var(--color-border)}.section:last-child{border-bottom:none}.connection-diagram{display:flex;align-items:center;justify-content:center;gap:16px;padding:24px;flex-wrap:wrap}.connection-node{display:flex;flex-direction:column;align-items:center;gap:8px;text-align:center}.connection-node-icon{font-size:2rem}.connection-node-label{font-weight:600;font-size:.875rem}.connection-node-sublabel{color:var(--color-text-muted);font-size:.75rem}.connection-arrow{color:var(--color-text-subtle);font-size:1.25rem}.image-frame{background:var(--color-card);border-radius:16px;padding:16px;display:flex;justify-content:center}.image-frame img{max-width:100%;height:auto;border-radius:8px}.login-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.login-card{width:100%;max-width:360px}.login-input{width:100%;padding:12px 16px;font-size:1rem;background:var(--color-bg);border:1px solid var(--color-border);border-radius:8px;color:var(--color-text);margin-bottom:16px}.login-input:focus{outline:none;border-color:var(--color-accent)}.login-error{color:#ff4444;font-size:.875rem;margin-bottom:16px}@media (max-width:480px){h1{font-size:2rem}.section{padding:32px 0}.connection-diagram{gap:12px}}