.delta-app{min-height:100vh;background-color:#0b0f19;color:#f1f5f9;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;padding:16px;display:flex;flex-direction:column;gap:16px}.delta-header{background:linear-gradient(135deg,#1e293b,#0f172a);border:1px solid #334155;border-radius:12px;padding:16px 24px;display:flex;justify-content:space-between;align-items:center;box-shadow:0 4px 20px #0006}.logo-section{display:flex;align-items:center;gap:12px}.logo-section h1{font-size:20px;font-weight:800;background:linear-gradient(to right,#38bdf8,#818cf8);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin:0}.logo-section p{font-size:11px;color:#94a3b8;margin:2px 0 0}.header-stats{display:flex;gap:16px}.stat-badge{background:#0f172a99;border:1px solid #334155;padding:6px 16px;border-radius:8px;display:flex;flex-direction:column;align-items:center}.stat-badge .label{font-size:10px;color:#94a3b8;text-transform:uppercase}.stat-badge .value{font-size:16px;font-weight:700}.delta-main{display:grid;grid-template-columns:280px 1fr 280px;gap:16px;flex-grow:1}.control-panel{background:#151f32;border:1px solid #1e293b;border-radius:12px;padding:16px;display:flex;flex-direction:column;gap:16px;box-shadow:0 4px 12px #0003}.panel-title{font-size:15px;font-weight:700;color:#cbd5e1;display:flex;align-items:center;gap:8px;border-bottom:1px solid #1e293b;padding-bottom:8px;margin:0}.control-group{display:flex;flex-direction:column;gap:6px}.slider-header{display:flex;justify-content:space-between;align-items:center;font-size:12px;font-weight:600}.slider-val{background:#1e293b;padding:2px 6px;border-radius:4px;font-family:monospace}.custom-range{width:100%;accent-color:#38bdf8;cursor:pointer}.desc{font-size:10px;color:#64748b;margin:0;line-height:1.3}.presets-section{margin-top:auto;border-top:1px solid #1e293b;padding-top:12px}.preset-buttons{display:flex;flex-direction:column;gap:6px}.preset-btn{font-size:11px;padding:8px;border-radius:6px;border:none;cursor:pointer;font-weight:600;transition:all .2s;text-align:left}.btn-miss{background:#1e293b;color:#38bdf8}.btn-nile{background:#1e293b;color:#fbbf24}.btn-ganges{background:#1e293b;color:#34d399}.preset-btn:hover{transform:translate(4px);filter:brightness(1.2)}.simulation-area{background:#0f172a;border:1px solid #1e293b;border-radius:12px;padding:16px;display:flex;flex-direction:column;gap:12px;box-shadow:0 4px 12px #0003}.simulation-toolbar{display:flex;justify-content:space-between;align-items:center;background:#151f32;padding:8px 12px;border-radius:8px}.play-controls{display:flex;gap:8px}.btn-action{display:flex;align-items:center;gap:6px;font-size:12px;font-weight:600;color:#fff;border:none;padding:6px 12px;border-radius:6px;cursor:pointer;transition:opacity .2s}.btn-action:hover{opacity:.9}.brush-controls{display:flex;align-items:center;gap:6px}.tool-btn{display:flex;align-items:center;gap:4px;font-size:11px;background:#1e293b;color:#94a3b8;border:1px solid #334155;padding:6px 10px;border-radius:6px;cursor:pointer;transition:all .2s}.tool-btn.active{background:#0f172a;border-color:currentColor;box-shadow:0 0 8px currentColor}.canvas-container{position:relative;background:#020617;border-radius:8px;overflow:hidden;display:flex;justify-content:center;align-items:center;border:2px solid #1e293b}.simulation-canvas{display:block;background-color:#020617;image-rendering:pixelated}.river-source-indicator{position:absolute;top:4px;left:50%;transform:translate(-50%);background:#0f172acc;border:1px solid #38bdf8;color:#38bdf8;font-size:9px;padding:2px 8px;border-radius:10px;pointer-events:none}.ocean-indicator{position:absolute;bottom:8px;left:50%;transform:translate(-50%);background:#0f172acc;border:1px solid #1e3a8a;color:#94a3b8;font-size:9px;padding:2px 8px;border-radius:10px;pointer-events:none}.legend{display:flex;justify-content:center;gap:16px;background:#151f32;padding:8px;border-radius:8px}.legend-item{display:flex;align-items:center;gap:6px;font-size:10px;color:#94a3b8}.color-box{width:12px;height:12px;border-radius:3px;display:inline-block}.sidebar-right{display:flex;flex-direction:column;gap:16px}.card{background:#151f32;border:1px solid #1e293b;border-radius:12px;padding:16px;box-shadow:0 4px 12px #0003}.card-title{font-size:14px;font-weight:700;display:flex;align-items:center;gap:6px;margin:0 0 12px}.mission-list{display:flex;flex-direction:column;gap:8px}.mission-item{background:#1e293b;border:1px solid #334155;border-radius:8px;padding:8px 12px;display:flex;justify-content:space-between;align-items:center;transition:all .3s}.mission-item.completed{border-color:#10b981;background:#10b9811a}.mission-info{display:flex;flex-direction:column;gap:2px}.ai-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.ai-btn{background:linear-gradient(135deg,#d97706,#b45309);color:#fff;border:none;font-size:11px;font-weight:700;padding:6px 12px;border-radius:20px;cursor:pointer;box-shadow:0 0 10px #d9770666;transition:transform .2s}.ai-btn:hover{transform:scale(1.05)}.ai-bubble{background:#0f172a;border:1px solid #334155;border-radius:8px;padding:12px;font-size:11px;line-height:1.5;color:#cbd5e1;min-height:100px;margin-bottom:12px;position:relative}.ai-tips{display:flex;gap:6px;font-size:10px;color:#64748b;line-height:1.4}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.icon-spin{animation:spin 8s linear infinite}