:root{--bg-color:#f8f9fa;--bg-gradient:linear-gradient(135deg, #fdfbfb 0%, #ebedee 100%);--surface-color:#ffffffb3;--surface-border:#ffffff80;--surface-shadow:0 8px 32px 0 #1f26871a;--text-main:#2b2d42;--text-muted:#6c757d;--primary:#4361ee;--primary-hover:#3a0ca3;--danger:#ef233c;--card-bg:#fff9;--input-bg:#fffc;--slider-track:#dee2e6}[data-theme=dark]{--bg-color:#0f111a;--bg-gradient:linear-gradient(135deg, #131520 0%, #0d0f17 100%);--surface-color:#1e202d99;--surface-border:#ffffff0d;--surface-shadow:0 8px 32px 0 #0000004d;--text-main:#f8f9fa;--text-muted:#a0a4b8;--primary:#7209b7;--primary-hover:#b5179e;--danger:#f72585;--card-bg:#191b2699;--input-bg:#141621cc;--slider-track:#2a2d3e}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-gradient);color:var(--text-main);background-attachment:fixed;min-height:100vh;font-family:Outfit,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5;transition:background .3s,color .3s;overflow-x:hidden}#app{flex-direction:column;gap:2rem;max-width:1200px;margin:0 auto;padding:1.5rem 1.5rem 10rem;display:flex}.glass-panel{background:var(--surface-color);-webkit-backdrop-filter:blur(12px);border:1px solid var(--surface-border);box-shadow:var(--surface-shadow);border-radius:1.5rem}header{justify-content:space-between;align-items:center;padding:1rem 0;display:flex}.logo{color:var(--primary);align-items:center;gap:.75rem;display:flex}.logo h1{background:-webkit-linear-gradient(45deg, var(--primary), var(--danger));-webkit-text-fill-color:transparent;letter-spacing:-.5px;-webkit-background-clip:text;font-size:1.75rem;font-weight:700}.preferences{align-items:center;gap:1.25rem;display:flex}.toggle-switch{cursor:pointer;align-items:center;gap:.5rem;display:flex;position:relative}.toggle-switch input{opacity:0;width:0;height:0}.toggle-switch .slider{background-color:var(--slider-track);border-radius:24px;width:44px;height:24px;transition:all .4s;position:relative}.toggle-switch .slider:before{content:"";background-color:#fff;border-radius:50%;width:18px;height:18px;transition:all .4s;position:absolute;bottom:3px;left:3px}.toggle-switch input:checked+.slider{background-color:var(--primary)}.toggle-switch input:checked+.slider:before{transform:translate(20px)}.label-text{color:var(--text-muted);font-size:.9rem;font-weight:600}#theme-toggle{color:var(--text-main);cursor:pointer;background:0 0;background:var(--surface-color);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:none;border:1px solid var(--surface-border);border-radius:50%;justify-content:center;align-items:center;width:40px;height:40px;transition:transform .2s,background .2s;display:flex}#theme-toggle:hover{background:var(--slider-track);transform:scale(1.05)}[data-theme=dark] .sun-icon{display:block}[data-theme=dark] .moon-icon,[data-theme=light] .sun-icon{display:none}[data-theme=light] .moon-icon{display:block}.btn{background:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:.75rem;padding:.75rem 1.5rem;font-family:inherit;font-weight:600;transition:background .2s,transform .1s}.btn:hover{background:var(--primary-hover);transform:translateY(-1px)}.btn:active{transform:translateY(1px)}.btn-small{padding:.5rem 1rem;font-size:.9rem}.icon-btn{background:var(--surface-color);width:40px;height:40px;color:var(--text-main);border:1px solid var(--surface-border);justify-content:center;align-items:center;padding:.5rem;display:flex}.icon-btn:hover{background:var(--slider-track)}.timeline-bar{z-index:100;border-radius:1.5rem;justify-content:space-between;align-items:center;gap:2rem;width:calc(100% - 3rem);max-width:1100px;padding:1.25rem 2rem;display:flex;position:fixed;bottom:1.5rem;left:50%;transform:translate(-50%)}.timeline-left{flex:none}.timeline-center{flex-direction:column;flex:auto;gap:.5rem;display:flex}main{flex-direction:column;gap:2.5rem;display:flex}.time-slider-container{flex-direction:column;gap:.5rem;display:flex}.slider-labels{color:var(--text-muted);justify-content:space-between;font-size:.85rem;font-weight:500;display:flex}#slider-current-val{color:var(--primary);font-weight:700}input[type=range]{-webkit-appearance:none;background:var(--slider-track);border-radius:3px;outline:none;width:100%;height:6px}input[type=range]::-webkit-slider-thumb{appearance:none;background:var(--primary);cursor:pointer;border-radius:50%;width:20px;height:20px;transition:transform .1s}input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.2)}@media (width<=900px){.timeline-bar{flex-direction:column;gap:1rem;width:calc(100% - 1.5rem);padding:1rem}#app{padding-bottom:220px}.timeline-left,.timeline-center{justify-content:center;width:100%}.timeline-left button{width:100%}}.add-location-section{justify-content:center;display:flex}.search-container{width:100%;max-width:500px;position:relative}.search-container svg{color:var(--text-muted);position:absolute;top:50%;left:1rem;transform:translateY(-50%)}#timezone-search{background:var(--input-bg);border:1px solid var(--surface-border);width:100%;color:var(--text-main);box-shadow:var(--surface-shadow);border-radius:1rem;outline:none;padding:1rem 1rem 1rem 2.8rem;font-family:inherit;font-size:1.1rem;transition:border-color .2s,box-shadow .2s}#timezone-search:focus{border-color:var(--primary);box-shadow:0 0 0 3px #7209b733}.search-results-dropdown{background:var(--card-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--surface-border);box-shadow:var(--surface-shadow);z-index:10;border-radius:1rem;max-height:250px;position:absolute;top:calc(100% + .5rem);left:0;right:0;overflow-y:auto}.search-results-dropdown.hidden{display:none}.search-result-item{cursor:pointer;padding:.75rem 1rem;transition:background .2s}.search-result-item:hover{background:var(--slider-track)}.search-result-item .city-name{font-weight:500}.search-result-item .tz-name{color:var(--text-muted);margin-left:.5rem;font-size:.85rem}.locations-grid{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem;display:grid}.location-card{cursor:grab;flex-direction:column;gap:.5rem;padding:1.5rem;transition:transform .2s,box-shadow .2s,opacity .2s,border .2s;display:flex;position:relative;overflow:hidden}.location-card:active{cursor:grabbing}.location-card.dragging{opacity:.4;transform:scale(.98)}.location-card.drag-over{border:2px dashed var(--primary);transform:scale(1.02)}.location-card:hover{transform:translateY(-4px)}.card-header{justify-content:space-between;align-items:flex-start;display:flex}.card-header-info{flex-direction:column;align-items:flex-start;gap:.25rem;display:flex}.city-title{font-size:1.4rem;font-weight:600;line-height:1.2}.country-title{color:var(--text-muted);margin-bottom:.25rem;font-size:.95rem;font-weight:500}.offset-badge{background:var(--slider-track);color:var(--text-muted);border-radius:1rem;padding:.2rem .5rem;font-size:.8rem;font-weight:500}.time-display{letter-spacing:-1px;margin:.5rem 0;font-size:3rem;font-weight:700;line-height:1.1}.time-display span.am-pm{color:var(--text-muted);margin-left:.25rem;font-size:1.2rem;font-weight:600}.date-display{color:var(--text-muted);font-size:1rem}.card-footer{justify-content:space-between;align-items:center;margin-top:.5rem;display:flex}.day-diff-badge{text-transform:uppercase;border-radius:.5rem;padding:.25rem .5rem;font-size:.75rem;font-weight:600}.day-diff-badge.yesterday{color:var(--danger);background:#ef233c1a}.day-diff-badge.tomorrow{color:var(--primary);background:#7209b71a}.remove-btn{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;padding:.25rem;transition:color .2s,background .2s;display:flex}.remove-btn:hover{color:var(--danger);background:#ef233c1a}.location-card.is-night{border-top:4px solid var(--primary)}.location-card.is-day{border-top:4px solid #f9a03f}@media (width<=600px){.locations-grid{grid-template-columns:repeat(2,1fr);gap:.75rem}.location-card{gap:.25rem;padding:.75rem}.city-title{font-size:1rem}.offset-badge{padding:.1rem .3rem;font-size:.7rem}.time-display{margin:.25rem 0;font-size:1.6rem}.time-display span.am-pm{margin-left:.15rem;font-size:.8rem}.date-display{font-size:.8rem}.day-diff-badge{padding:.15rem .3rem;font-size:.65rem}.remove-btn{padding:.15rem}.remove-btn svg{width:14px;height:14px}}