:root{--color-bg:#0a0a1a;--color-accent:#00d4ff;--color-disabled:#1e3a4a;--color-disabled-2:#334155;--color-text:#e0f7ff;--color-text-muted:#7ab8cc;--font-mono:"Courier New", Courier, monospace;--font-body:system-ui, -apple-system, sans-serif;--glow-accent:0 0 8px #00d4ff, 0 0 20px #00d4ff55;--glow-strong:0 0 12px #00d4ff, 0 0 30px #00d4ff88, 0 0 60px #00d4ff33;--transition-fast:.12s ease}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{background-color:var(--color-bg);color:var(--color-text);font-family:var(--font-body);-webkit-font-smoothing:antialiased;min-height:100vh}.app{flex-direction:column;align-items:center;min-height:100vh;padding:0 1rem 4rem;display:flex}@media (width>=768px){.app{padding:0 2rem 4rem}}.header{width:100%;max-width:640px;padding:2rem 0 1rem}.header__top{justify-content:space-between;align-items:center;margin-bottom:1.5rem;display:flex}.header__logo{font-family:var(--font-mono);letter-spacing:.15em;color:var(--color-accent);text-shadow:var(--glow-accent);font-size:1.25rem;font-weight:700}.header__version-select{font-family:var(--font-mono);color:var(--color-text-muted);border:1px solid var(--color-disabled);cursor:pointer;appearance:none;background:0 0;border-radius:4px;outline:none;padding:.3rem .7rem;font-size:.75rem}.header__version-select:hover{border-color:var(--color-accent);color:var(--color-accent)}.header__version-select option{background:var(--color-bg);color:var(--color-text)}.header__title{font-family:var(--font-mono);color:var(--color-text);letter-spacing:.05em;margin-bottom:.4rem;font-size:clamp(1.2rem,4vw,1.8rem)}.header__tagline{font-family:var(--font-mono);color:var(--color-text-muted);font-size:.85rem;font-style:italic}.corner-node--idle:hover circle:first-child{filter:drop-shadow(0 0 6px #00d4ff)}.triangle-section{justify-content:center;align-items:center;padding:2rem 1rem;display:flex}.triangle-svg{width:100%;max-width:400px;height:auto}.advice-panel{border:1px solid var(--color-accent);background:#00d4ff0a;border-radius:6px;width:100%;max-width:640px;margin-top:2rem;padding:1.5rem;animation:.28s cubic-bezier(.22,1,.36,1) both advice-slide-in;box-shadow:0 0 16px #00d4ff1f,inset 0 0 32px #00d4ff0a}@keyframes advice-slide-in{0%{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}.advice-panel__label{font-family:var(--font-mono);letter-spacing:.15em;color:var(--color-accent);text-shadow:var(--glow-accent);text-transform:uppercase;margin-bottom:.75rem;font-size:.75rem}.advice-panel__title{font-family:var(--font-mono);color:var(--color-text);margin-bottom:.6rem;font-size:clamp(.95rem,2.5vw,1.1rem);font-weight:700}.advice-panel__body{font-family:var(--font-body);color:var(--color-text-muted);font-size:.9rem;line-height:1.65}.advice-panel__serious{border-top:1px solid #00d4ff33;margin-top:1.25rem;padding-top:1rem}.advice-panel__serious-label{font-family:var(--font-mono);letter-spacing:.15em;color:var(--color-accent);text-shadow:var(--glow-accent);text-transform:uppercase;margin-bottom:.5rem;font-size:.75rem}.advice-panel__serious-body{font-family:var(--font-body);color:var(--color-text-muted);font-size:.9rem;line-height:1.65}.reset-button{font-family:var(--font-mono);letter-spacing:.15em;color:var(--color-accent);border:1px solid var(--color-accent);cursor:pointer;transition:box-shadow var(--transition-fast), background var(--transition-fast);background:0 0;border-radius:4px;margin-top:2rem;padding:.6rem 2.5rem;font-size:.9rem}.reset-button:hover{box-shadow:var(--glow-accent);background:#00d4ff0f}.reset-button:active{background:#00d4ff24}