:root{--bg:#0d1117;--bg-alpha:rgba(13,17,23,0.85);--surface:#161b22;--surface2:#21262d;--border:#30363d;--border-hover:#444c56;--text:#e6edf3;--muted:#7d8590;--accent:#58a6ff;--accent-dim:rgba(88,166,255,0.15);--danger:#f85149;--danger-dim:rgba(248,81,73,0.1);--green:#3fb950;--radius:14px;--font:system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}.light{--bg:#ffffff;--bg-alpha:rgba(255,255,255,0.85);--surface:#f6f8fa;--surface2:#eaeef2;--border:#d0d7de;--border-hover:#b1bac4;--text:#1f2328;--muted:#636c76;--accent:#0969da;--accent-dim:rgba(9,105,218,0.1);--danger:#cf222e;--danger-dim:rgba(207,34,46,0.1);--green:#1a7f37}@media (prefers-color-scheme:light){:root:not(.dark){--bg:#ffffff;--bg-alpha:rgba(255,255,255,0.85);--surface:#f6f8fa;--surface2:#eaeef2;--border:#d0d7de;--border-hover:#b1bac4;--text:#1f2328;--muted:#636c76;--accent:#0969da;--accent-dim:rgba(9,105,218,0.1);--danger:#cf222e;--danger-dim:rgba(207,34,46,0.1);--green:#1a7f37}}*,::after,::before{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:var(--font);min-height:100svh;padding-bottom:max(40px,env(safe-area-inset-bottom));-webkit-font-smoothing:antialiased;overflow-x:clip}header{position:sticky;top:0;z-index:100;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 20px;background:var(--bg-alpha);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--border)}.logo{font-size:24px;font-weight:700;letter-spacing:-.4px;color:var(--text);flex-shrink:0}.logo span{color:var(--accent)}#appFooter{display:flex;flex-direction:column;align-items:center;gap:8px;text-align:center;padding:32px 16px;font-size:12px;color:var(--muted);opacity:.5;border-top:1px solid var(--border);margin-top:24px}#appFooter div:first-child{display:flex;gap:20px}#appFooter a{color:var(--muted);text-decoration:none}#appFooter a:hover{color:var(--text)}.header-right{display:flex;align-items:center;gap:8px}#offsetBadge{display:none;align-items:center;gap:8px;padding:5px 10px 5px 12px;border-radius:99px;border:1px solid var(--accent);background:var(--accent-dim);font-size:13px;font-weight:500;color:var(--accent);white-space:nowrap}#offsetBadge.visible{display:flex}#offsetBadge button{background:0 0;border:none;cursor:pointer;color:var(--accent);font-size:16px;line-height:1;padding:0;display:flex;align-items:center;opacity:.7;transition:opacity .15s}#offsetBadge button:hover{opacity:1}.btn-icon{background:var(--surface);border:1px solid var(--border);color:var(--text);border-radius:8px;padding:7px 10px;font-size:13px;font-weight:500;cursor:pointer;transition:background .15s,border-color .15s;white-space:nowrap}.btn-icon:hover{background:var(--surface2);border-color:var(--border-hover)}.btn-icon.active{color:var(--accent);border-color:var(--accent);background:var(--accent-dim)}.header-divider{width:1px;height:20px;background:var(--border);margin:0 4px;flex-shrink:0}.btn-add{display:flex;align-items:center;gap:6px;background:var(--accent);border:none;color:var(--bg);border-radius:8px;padding:7px 14px;font-size:13px;font-weight:600;cursor:pointer;transition:opacity .15s;white-space:nowrap}.btn-add:hover{opacity:.85}main{max-width:1600px;margin:0 auto;padding:20px 16px}#layout{display:flex;flex-direction:column}.cities-list{display:flex;flex-direction:column;gap:6px}.city-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:border-color .2s}.city-card:hover{border-color:var(--border-hover)}.city-card-body{display:flex;align-items:center;gap:10px;padding:10px 14px}.city-left{flex:1;min-width:0}.city-name-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.city-flag{font-size:16px;line-height:1;flex-shrink:0}.city-name{font-size:14px;font-weight:600;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.city-meta{display:flex;align-items:center;gap:5px;margin-top:2px;flex-wrap:wrap}.city-country{font-size:12px;color:var(--muted)}.badge{font-size:11px;padding:2px 7px;border-radius:6px;background:var(--surface2);color:var(--muted);border:1px solid var(--border);white-space:nowrap}.badge.local{background:var(--accent-dim);color:var(--accent);border-color:var(--accent)}.city-right{display:flex;flex-direction:column;align-items:flex-end;gap:2px;flex-shrink:0}.city-time{font-size:28px;font-weight:200;letter-spacing:-1px;line-height:1;font-variant-numeric:tabular-nums;color:var(--text)}.city-ampm{font-size:11px;font-weight:400;color:var(--muted);margin-left:2px;vertical-align:super;font-variant-numeric:normal}.city-seconds{font-size:16px;font-weight:200;color:var(--muted);font-variant-numeric:tabular-nums}.city-date{font-size:11px;color:var(--muted);margin-top:1px}.city-date-diff{font-size:11px;color:var(--accent);background:var(--accent-dim);border-radius:4px;padding:0 4px;margin-left:4px}.btn-remove{background:0 0;border:none;color:var(--muted);cursor:pointer;padding:4px 6px;border-radius:6px;font-size:16px;line-height:1;transition:color .15s,background .15s;flex-shrink:0;margin-left:4px}.btn-remove:hover{color:var(--danger);background:var(--danger-dim)}.timeline-wrap{position:relative;height:22px;cursor:crosshair;user-select:none;-webkit-user-select:none;touch-action:none}.timeline-bg{position:absolute;inset:0;background:linear-gradient(to right,#080c1a 0,#080c1a 17%,#1a0b06 22%,#7a3218 27%,#1d3a5c 33%,#1b3456 43%,#152b4e 60%,#7a4018 71%,#3a1208 79%,#080c1a 85%,#080c1a 100%)}.timeline-work{position:absolute;top:0;bottom:0;left:37.5%;width:33.3%;background:rgba(88,166,255,.06);pointer-events:none}.timeline-cursor{position:absolute;top:0;bottom:0;width:2px;margin-left:-1px;background:rgba(255,255,255,.9);box-shadow:0 0 8px rgba(255,255,255,.6),0 0 2px #fff;pointer-events:none;z-index:2;border-radius:1px}.timeline-cursor::before{content:'';position:absolute;top:-3px;left:50%;transform:translateX(-50%);width:6px;height:6px;background:#fff;border-radius:50%}.timeline-labels{position:absolute;inset:0;pointer-events:none}.timeline-label{position:absolute;bottom:2px;font-size:8px;color:rgba(125,133,144,.6);transform:translateX(-50%)}.timeline-hover{position:absolute;bottom:calc(100% + 6px);transform:translateX(-50%);background:var(--surface2);border:1px solid var(--border);border-radius:8px;padding:5px 9px;font-size:12px;font-weight:600;color:var(--text);pointer-events:none;white-space:nowrap;z-index:20;opacity:0;transition:opacity .1s}.timeline-wrap:hover .timeline-hover{opacity:1}.empty-state{text-align:center;padding:80px 24px;color:var(--muted)}.empty-state h3{font-size:18px;font-weight:600;color:var(--text);margin-bottom:8px}.empty-state p{font-size:14px;margin-bottom:24px}.empty-state button{background:var(--accent);color:var(--bg);border:none;border-radius:10px;padding:10px 20px;font-size:14px;font-weight:600;cursor:pointer}.empty-state button:hover{opacity:.85}.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.65);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);z-index:500;display:flex;align-items:flex-start;justify-content:center;padding:72px 16px 40px;opacity:0;pointer-events:none;transition:opacity .2s}.modal-overlay.open{opacity:1;pointer-events:auto}.modal{background:var(--surface);border:1px solid var(--border);border-radius:18px;width:100%;max-width:480px;overflow:hidden;transform:translateY(-16px) scale(.98);transition:transform .2s;max-height:calc(100svh - 120px);display:flex;flex-direction:column}.modal-overlay.open .modal{transform:translateY(0) scale(1)}.modal-header{display:flex;align-items:center;gap:10px;padding:14px 16px;border-bottom:1px solid var(--border);flex-shrink:0}.modal-search-icon{color:var(--muted);font-size:16px;flex-shrink:0}.modal-input{flex:1;background:0 0;border:none;outline:0;font-size:16px;color:var(--text);font-family:var(--font)}.modal-input::placeholder{color:var(--muted)}.modal-close{background:0 0;border:none;color:var(--muted);cursor:pointer;font-size:18px;padding:4px;line-height:1;border-radius:6px;transition:color .15s,background .15s}.modal-close:hover{color:var(--text);background:var(--surface2)}.modal-list{overflow-y:auto;flex:1}.modal-list::-webkit-scrollbar{width:4px}.modal-list::-webkit-scrollbar-track{background:0 0}.modal-list::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}.modal-group-label{padding:8px 16px 4px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.6px;color:var(--muted)}.modal-item{display:flex;align-items:center;gap:12px;padding:11px 16px;cursor:pointer;border-bottom:1px solid rgba(48,54,61,.5);transition:background .1s}.modal-item:last-child{border-bottom:none}.modal-item.highlighted,.modal-item:hover{background:var(--surface2)}.modal-item.added{opacity:.4;pointer-events:none}.modal-item-flag{font-size:18px;flex-shrink:0}.modal-item-info{flex:1;min-width:0}.modal-item-name{font-size:14px;font-weight:500}.modal-item-country{font-size:12px;color:var(--muted)}.modal-item-time{font-size:13px;font-weight:600;color:var(--muted);white-space:nowrap}.modal-item-check{font-size:14px;color:var(--green);flex-shrink:0}.modal-empty{text-align:center;padding:40px 24px;color:var(--muted);font-size:14px}@keyframes slideDown{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.city-card{animation:slideDown .2s ease}.circle-section{justify-content:center;padding:64px 56px;border-bottom:1px solid var(--border);margin-bottom:4px}.circle-wrap{position:relative;width:calc(100vw - 32px - 112px);aspect-ratio:1;flex-shrink:0}.circle-dial{position:absolute;inset:0;border-radius:50%;background:conic-gradient(#b5d5ec 0deg,#a8cce0 30deg,#80b8d0 65deg,#d4843a 82deg,#d06020 90deg,#8b3a20 98deg,#0a1535 135deg,#060a1a 180deg,#0a1535 225deg,#8b3a20 262deg,#d06020 270deg,#d4843a 278deg,#80b8d0 295deg,#a8cce0 330deg,#b5d5ec 360deg)}.circle-inner{position:absolute;inset:13.5%;border-radius:50%;background:var(--bg);box-shadow:inset 0 0 24px rgba(0,0,0,.4)}.circle-nodes{position:absolute;inset:0;overflow:visible}.circle-node-dot{position:absolute;transform:translate(-50%,-50%);min-width:40px;height:40px;padding:0 6px;border-radius:20px;background:var(--surface);border:2.5px solid rgba(48,54,61,.8);display:flex;align-items:center;justify-content:center;gap:2px;font-size:20px;cursor:grab;user-select:none;-webkit-user-select:none;touch-action:none;box-shadow:0 2px 12px rgba(0,0,0,.6);transition:border-color .15s,box-shadow .15s,transform .1s;z-index:5;line-height:1}.circle-node-dot:hover{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-dim),0 2px 12px rgba(0,0,0,.6);transform:translate(-50%,-50%) scale(1.1)}.circle-node-dot.dragging{border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-dim),0 2px 12px rgba(0,0,0,.6);transform:translate(-50%,-50%) scale(1.15);cursor:grabbing}.circle-node-label{position:absolute;pointer-events:none;z-index:4}.circle-node-city{font-size:14px;font-weight:600;color:var(--text);white-space:nowrap;line-height:1.3}.circle-node-time-lbl{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap;line-height:1.3}.circle-tick-label{position:absolute;transform:translate(-50%,-50%);font-size:9px;color:rgba(125,133,144,.45);pointer-events:none;z-index:3;line-height:1}#circleCenterTime{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;pointer-events:none;z-index:3}.circle-center-hm{font-size:28px;font-weight:200;letter-spacing:-1px;font-variant-numeric:tabular-nums;color:var(--text);line-height:1}.circle-center-seconds{font-size:14px;font-weight:200;color:var(--muted);opacity:.6;font-variant-numeric:tabular-nums;vertical-align:baseline}.circle-center-period{font-size:13px;font-weight:400;color:var(--muted);opacity:.8;letter-spacing:.5px;vertical-align:baseline}.circle-center-label{font-size:9px;color:var(--muted);margin-top:4px;text-transform:uppercase;letter-spacing:.8px}@media (min-width:800px){#layout{flex-direction:row;align-items:flex-start;gap:40px}.circle-section{flex:0 0 auto;position:sticky;top:72px;align-self:flex-start;padding:64px 40px 64px 56px;border-bottom:none;border-right:1px solid var(--border);margin-bottom:0}.circle-wrap{width:min(700px,58vw)}.cities-list{flex:1;min-width:260px;padding-top:16px}}@media (max-width:480px){.city-time{font-size:24px}.city-name{font-size:13px}header{padding:12px 14px}main{padding:14px 10px}.btn-add span{display:none}}