:root{--bg:#10141a;--panel:#171d26;--panel2:#1d2531;--border:#2a3547;--text:#dfe8f5;--muted:#8fa3bf;--accent:#37d0ff;--warn:#ffb347;--danger:#ff5d6c;--safe-top:env(safe-area-inset-top,0px);--safe-bottom:env(safe-area-inset-bottom,0px);--top-bar-h:0px}*{box-sizing:border-box}html,body,#root{height:100%;height:100dvh;margin:0;overflow:hidden}.app-shell{height:100%;height:100dvh;color:var(--text);background:var(--bg);grid-template-rows:1fr;grid-template-columns:300px 1fr;display:grid;position:relative}.top-bar,.panel-backdrop{display:none}.sidebar{background:var(--panel);border-right:1px solid var(--border);width:300px;min-width:0;padding:14px 16px calc(24px + var(--safe-bottom));-webkit-overflow-scrolling:touch;scrollbar-width:thin;scrollbar-color:#37d0ff73 transparent;flex-direction:column;grid-area:1/1;gap:14px;display:flex;overflow:hidden auto}.sidebar::-webkit-scrollbar{width:8px}.sidebar::-webkit-scrollbar-track{background:0 0;margin:6px 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b{color:var(--text);font-weight:600}.btn.danger{color:var(--danger);border-color:#ff5d6c80}.btn.icon-btn{width:40px;min-width:40px;color:var(--muted);justify-content:center;align-items:center;margin-bottom:8px;padding:0;display:inline-flex}.btn.icon-btn:hover:not(:disabled){color:var(--text)}.btn-row{flex-wrap:wrap;gap:6px;margin-bottom:6px;display:flex}.btn-row .btn{white-space:nowrap;flex:1}.opt-result{color:#7be8a8;margin:6px 0 0;font-size:12px;line-height:1.4}.score{color:var(--muted);margin:8px 0 0;font-size:11.5px}.selection{background:var(--panel2);border:1px solid var(--border);border-radius:10px;padding:10px 12px 12px}.selection input{background:var(--panel);border:1px solid var(--border);width:100%;color:var(--text);border-radius:7px;margin-bottom:8px;padding:10px 9px;font-size:16px}.sel-info{color:var(--muted);margin:0 0 8px;font-size:12.5px}.selection-measure{margin-bottom:10px}.selection-measure .measure-box{box-shadow:none;background:0 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toast-in{0%{opacity:0;transform:translate(-50%)translateY(-6px)}to{opacity:1;transform:translate(-50%)translateY(0)}}.measure-box{pointer-events:auto;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#171d26f0;border:1px solid #ffd1668c;border-radius:12px;width:min(260px,100% - 24px);padding:12px 12px 10px;position:absolute;top:58px;right:12px;box-shadow:0 8px 28px #00000059}.measure-box.embedded{width:auto;box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none;background:0 0;border:none;padding:0;position:static}.measure-box-head{justify-content:space-between;align-items:baseline;gap:8px;margin-bottom:10px;display:flex}.measure-box-head 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#ffd166}.dim-unit{color:var(--muted);text-transform:none;letter-spacing:0;pointer-events:none;font-size:12px;font-weight:600;position:absolute;bottom:11px;right:10px}.measure-note{color:var(--muted);margin:8px 0 0;font-size:11px;line-height:1.35}.mobile-only{display:none}.desktop-only{display:flex}.sidebar-sheet-handle{background:#8fa3bf73;border-radius:99px;width:42px;height:4px;margin:4px auto 8px}@media (max-width:900px){:root{--top-bar-h:52px}.app-shell{grid-template-columns:1fr;grid-template-rows:var(--top-bar-h) 1fr}.top-bar{padding:0 12px;padding-top:var(--safe-top);height:calc(var(--top-bar-h) + var(--safe-top));background:var(--panel);border-bottom:1px solid var(--border);z-index:5;grid-area:1/1;justify-content:space-between;align-items:center;gap:10px;display:flex}.top-bar-brand{align-items:center;gap:8px;min-width:0;display:flex}.top-bar-brand .logo{flex-shrink:0;font-size:22px}.top-bar-brand strong{white-space:nowrap;text-overflow:ellipsis;font-size:14px;font-weight:650;display:block;overflow:hidden}.top-bar-brand span{color:var(--muted);font-size:10px;display:block}.panel-toggle{border-color:#37d0ff73;flex-shrink:0;min-height:40px;padding:8px 14px;font-weight:650}.canvas-area{grid-area:2/1}.measure-box{width:auto;top:auto;bottom:12px;left:10px;right:10px}.mobile-only{display:block}.desktop-only{display:none!important}.sidebar .app-title{padding-top:2px}.panel-backdrop{z-index:20;cursor:pointer;background:#00000073;border:none;padding:0;display:block;position:fixed;top:0;bottom:0;left:0;right:0}.panel-backdrop[hidden]{display:none}.sidebar{border-right:none;border-top:1px solid var(--border);z-index:30;border-radius:16px 16px 0 0;width:100%;max-height:min(78dvh,640px);padding-top:8px;transition:transform .22s;position:fixed;top:auto;bottom:0;left:0;right:0;transform:translateY(110%);box-shadow:0 -12px 40px #0006}.app-shell.panel-open .sidebar{transform:translateY(0)}.tool-grid{grid-template-columns:repeat(5,1fr)}.tool-btn{padding:8px 2px 6px;font-size:10.5px}.wind-dial{flex-wrap:wrap;justify-content:center}.app-shell.panel-open .canvas-overlay .measure-box{display:none}}@media (max-width:420px){.tool-btn{font-size:10px}.seg-btn{padding:8px 1px;font-size:10.5px}.btn-row .btn{padding:10px 8px;font-size:12px}}@media (min-width:901px){.canvas-overlay .mobile-only-measure{display:none}}.flux-panel{background:#ffffff08;border-radius:10px;margin-top:10px;padding:10px 12px}.flux-title{color:var(--muted);margin:0 0 6px;font-size:12px;font-weight:650}.flux-hint{margin:0 0 6px;font-size:11px}.flux-list{margin:0;padding:0;font-size:12px;list-style:none}.flux-list li{padding:0}.flux-item{width:100%;color:var(--text);font:inherit;text-align:left;cursor:pointer;touch-action:manipulation;background:0 0;border:none;justify-content:space-between;gap:8px;padding:4px 0;display:flex}.flux-item:hover span:first-child{color:var(--accent)}.flux-item.selected span:first-child{color:var(--accent);font-weight:600}.flux-item span:last-child{color:var(--muted);font-variant-numeric:tabular-nums}.wind-deg-input{align-items:center;gap:8px;margin:6px 0;font-size:12px;display:flex}.wind-deg-input input{width:64px}