:root{--bg-primary:#0a0a1a;--bg-secondary:#101025;--bg-tertiary:#1a1a35;--accent:gold;--accent-secondary:#4a90d9;--text-primary:#fff;--text-secondary:#aaa;--text-muted:#6a6a9a;--border:#2a2a4a;--highlight:#3a5a8a}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe UI,system-ui,sans-serif;background:var(--bg-primary);color:var(--text-primary);overflow:hidden}.app{display:grid;grid-template-columns:1fr 320px;grid-template-rows:60px 1fr 80px;height:100vh}.header{grid-column:1/-1;background:linear-gradient(180deg,#1a1a3a 0,var(--bg-primary) 100%);justify-content:space-between;padding:0 24px;border-bottom:1px solid var(--border)}.header,.logo{display:flex;align-items:center}.logo{gap:12px}.logo-img{object-fit:contain}.logo-icon,.logo-img{width:36px;height:36px}.logo-icon{background:radial-gradient(circle,gold 30%,#ff8c00 100%);border-radius:50%;box-shadow:0 0 20px rgba(255,200,0,.5)}.logo-text{font-size:20px;font-weight:600;background:linear-gradient(90deg,gold,#ff8c00);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.nav{display:flex;gap:8px}.nav-btn{padding:8px 16px;background:transparent;border:1px solid var(--border);color:var(--text-secondary);border-radius:6px;cursor:pointer;transition:all .2s;font-size:14px}.nav-btn:hover{background:var(--bg-tertiary);color:var(--text-primary)}.nav-btn.active{background:linear-gradient(135deg,#4a4a7a,#3a3a6a);border-color:#6a6a9a;color:var(--text-primary)}.canvas-area{position:relative;background:radial-gradient(ellipse at center,#0d0d20 0,#050510 100%)}.info-panel{background:var(--bg-secondary);border-left:1px solid var(--border);padding:20px;overflow-y:auto}.panel-section{margin-bottom:24px}.panel-title{font-size:12px;text-transform:uppercase;letter-spacing:1px;color:var(--text-muted);margin-bottom:12px}.planet-card{background:linear-gradient(135deg,var(--bg-tertiary) 0,#15152a 100%);border-radius:12px;padding:20px;border:1px solid var(--border)}.planet-header{display:flex;align-items:center;gap:16px;margin-bottom:16px}.planet-avatar{width:60px;height:60px;border-radius:50%}.planet-name{font-size:24px;font-weight:600}.planet-type{font-size:12px;color:#6a8aba;background:rgba(106,138,186,.2);padding:4px 8px;border-radius:4px}.planet-stats{display:grid;grid-template-columns:1fr 1fr;grid-gap:12px;gap:12px}.stat-item{background:#0d0d20;padding:12px;border-radius:8px}.stat-label{font-size:11px;color:var(--text-muted);margin-bottom:4px}.stat-value{font-size:16px;font-weight:500}.stat-unit{font-size:12px;color:var(--text-secondary)}.planet-description{margin-top:16px;font-size:13px;line-height:1.6;color:var(--text-secondary)}.quick-facts{background:#0d0d20;border-radius:8px;padding:12px}.fact-item{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid #1a1a2a;font-size:13px}.fact-item:last-child{border-bottom:none}.fact-label{color:var(--text-muted)}.fact-value{color:var(--text-secondary)}.toolbar{grid-column:1/-1;background:#12122a;justify-content:center;gap:12px;padding:0 24px;border-top:1px solid var(--border)}.tool-btn,.toolbar{display:flex;align-items:center}.tool-btn{gap:8px;padding:10px 20px;background:#1a1a3a;border:1px solid var(--border);color:var(--text-secondary);border-radius:8px;cursor:pointer;transition:all .2s;font-size:14px}.tool-btn:hover{background:#2a2a4a;color:var(--text-primary);transform:translateY(-2px)}.tool-btn.active{background:linear-gradient(135deg,#3a5a8a,#2a4a7a);border-color:#5a8aba;color:var(--text-primary)}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.8);display:none;align-items:center;justify-content:center;z-index:1000}.modal-overlay.visible{display:flex}.modal{background:var(--bg-secondary);border-radius:16px;padding:32px;max-width:800px;width:90%;border:1px solid var(--border)}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.modal-title{font-size:24px;font-weight:600}.modal-close{width:32px;height:32px;background:#1a1a3a;border:none;color:var(--text-primary);border-radius:8px;cursor:pointer;font-size:18px}.comparison-container{display:flex;align-items:flex-end;justify-content:center;gap:8px;height:250px;padding:20px;background:#0a0a15;border-radius:12px}.comparison-bar{display:flex;flex-direction:column;align-items:center;gap:4px}@media (max-width:1024px){.app{grid-template-columns:1fr}.info-panel{display:none}}.planet-tooltip{background:rgba(10,10,30,.95);border:1px solid rgba(255,215,0,.5);border-radius:8px;padding:14px 20px;white-space:normal;word-wrap:break-word;pointer-events:none;box-shadow:0 4px 20px rgba(0,0,0,.5);min-width:280px;text-align:center}.tooltip-name{font-size:24px;font-weight:600;color:gold;margin-bottom:8px}.tooltip-desc{font-size:18px;color:#ccc;line-height:1.4}