:root{--header-height:86px;--bg:#f8f4f4;--card-bg:rgba(255,255,255,.94);--surface:rgba(255,255,255,.97);--text:#2d1b1b;--muted:#6b5b5b;--primary:#8b1538;--primary-hover:#6b0f2a;--border:rgba(139,21,56,.20);--shadow:0 10px 30px rgba(139,21,56,.20),0 2px 6px rgba(139,21,56,.10);--radius:16px;font-family:Calibri,"Segoe UI",Arial,sans-serif}*{box-sizing:border-box}html,body{height:100%;margin:0;color:var(--text);background:linear-gradient(180deg,#f8f4f4,#f0e8e8);overflow:hidden}button,input{font:inherit}.app-header{height:var(--header-height);position:fixed;inset:0 0 auto;z-index:2000;display:flex;align-items:center;justify-content:space-between;padding:15px 22px;background:rgba(255,255,255,.78);border-bottom:1px solid var(--border);backdrop-filter:saturate(180%) blur(18px);box-shadow:0 8px 20px rgba(139,21,56,.15)}.brand{display:flex;align-items:center;gap:13px;min-width:0}.brand-mark{width:46px;height:46px;display:grid;place-items:center;border-radius:14px;background:linear-gradient(145deg,var(--primary),var(--primary-hover));color:#fff;font-size:17px;font-weight:800;box-shadow:0 6px 16px rgba(139,21,56,.27)}h1{font-size:23px;line-height:1.1;margin:0;color:var(--primary);font-weight:800;letter-spacing:-.01em}.brand p{margin:5px 0 0;color:var(--muted);font-size:13px}.header-actions{display:flex;align-items:center;gap:10px}.status-pill,.icon-btn,.guide-btn{border:1px solid var(--border);background:var(--surface);border-radius:14px;color:var(--text);box-shadow:0 3px 10px rgba(139,21,56,.08)}.status-pill{padding:9px 13px;font-size:12px;font-weight:700;letter-spacing:.04em}.status-pill i{display:inline-block;width:7px;height:7px;border-radius:50%;background:#d7a22a;margin-right:7px}.status-pill.live i{background:#2d9c69}.icon-btn,.guide-btn{height:38px;cursor:pointer;color:var(--primary);transition:.2s}.icon-btn{width:38px;font-size:22px}.guide-btn{padding:0 14px;font-size:12px;font-weight:700}.icon-btn:hover,.guide-btn:hover{background:var(--primary);color:#fff;transform:translateY(-1px)}
.app-container{position:absolute;inset:var(--header-height) 0 0}.app-container::after{content:"";position:absolute;inset:0;pointer-events:none;box-shadow:inset 0 0 80px rgba(45,27,27,.06);z-index:400}#map{position:absolute;inset:0;background:#ede6e6}.leaflet-control-zoom{border:0!important;box-shadow:var(--shadow)!important}.leaflet-control-zoom a{color:var(--primary)!important;border-color:var(--border)!important}.leaflet-control-attribution{font-family:Calibri,"Segoe UI",sans-serif!important}.floating-panel{position:absolute;z-index:1000;background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);backdrop-filter:blur(15px);padding:15px}.floating-panel h2{font-size:15px;margin:0 0 10px}.result-panel{top:20px;left:20px;width:255px}.panel-kicker{color:var(--primary);font-size:10px;font-weight:800;letter-spacing:.14em}.result-main{display:flex;align-items:center;justify-content:space-between;gap:9px}.value-row{display:flex;align-items:flex-end;gap:6px;margin:7px 0 2px}.value-row strong{font-size:43px;line-height:.95;color:var(--primary);font-weight:800}.value-row span{color:var(--muted);font-size:12px;padding-bottom:5px}.aq-label{display:inline-block;padding:5px 8px;border-radius:999px;background:#f0ebeb;color:var(--muted);font-size:10px;font-weight:700;white-space:nowrap}.aq-label.good{background:#e1f3e9;color:#23704c}.aq-label.moderate{background:#fff1cb;color:#865e00}.aq-label.elevated{background:#f9dfdc;color:#98382f}.result-panel p{margin:6px 0 0;color:var(--muted);font-size:10px}
.overlay-panel{right:20px;top:20px;width:190px}.overlay-panel label{display:block;padding:6px 0;font-size:12px;cursor:pointer}.overlay-panel input{accent-color:var(--primary);margin-right:8px}.overlay-panel .disabled{opacity:.45;cursor:not-allowed}.legend-panel{left:20px;bottom:20px;width:220px;padding:11px 13px}.legend-heading,.legend-scale{display:flex;align-items:center;justify-content:space-between}.legend-heading{font-size:12px;margin-bottom:7px}.legend-heading span,.legend-scale{color:var(--muted);font-size:10px}.color-bar{height:9px;border-radius:5px;background:linear-gradient(90deg,#30123b,#4667de,#35b779,#fde725,#f1605d,#7a0403);box-shadow:inset 0 0 0 1px rgba(0,0,0,.08)}.legend-scale{margin-top:4px}
.layer-panel{right:20px;bottom:20px;width:310px;padding:0;overflow:hidden;transition:.25s}.collapse-header{width:100%;min-height:58px;border:0;background:transparent;padding:12px 14px;display:flex;align-items:center;justify-content:space-between;color:var(--text);cursor:pointer;text-align:left}.collapse-header>span:first-child{display:flex;flex-direction:column;gap:2px}.collapse-header b{font-size:14px}.collapse-header small{font-size:11px;color:var(--muted)}.header-side{display:flex;align-items:center;gap:9px}.header-side em{font-style:normal;font-size:9px;letter-spacing:.1em;padding:5px 8px;border-radius:999px;background:var(--primary);color:#fff;font-weight:700}.header-side i{font-style:normal;color:var(--primary);transition:.25s}.collapsible-content{max-height:240px;padding:0 14px 14px;opacity:1;transition:max-height .25s,opacity .2s,padding .25s}.layer-panel.collapsed .collapsible-content{max-height:0;padding-top:0;padding-bottom:0;opacity:0;overflow:hidden}.layer-panel.collapsed .header-side i{transform:rotate(180deg)}dl{display:grid;grid-template-columns:82px 1fr;gap:6px;margin:0;font-size:11px}dt{color:var(--muted)}dd{margin:0;overflow-wrap:anywhere;font-weight:600}.research-note{position:absolute;z-index:900;left:50%;bottom:20px;transform:translateX(-50%);padding:8px 11px;border:1px solid rgba(139,21,56,.14);border-radius:12px;background:rgba(255,255,255,.86);box-shadow:0 4px 15px rgba(139,21,56,.10);color:var(--muted);font-size:10px;backdrop-filter:blur(12px);white-space:nowrap}
.modal-backdrop{position:fixed;inset:0;z-index:5000;background:rgba(45,27,27,.48);display:grid;place-items:center;padding:20px;backdrop-filter:blur(8px)}.modal-backdrop[hidden]{display:none}.guide-modal{position:relative;width:min(680px,100%);max-height:calc(100vh - 40px);overflow:auto;background:#fff;border:1px solid var(--border);border-radius:24px;padding:28px;box-shadow:0 24px 80px rgba(45,27,27,.35)}.modal-close{position:absolute;right:16px;top:14px;width:35px;height:35px;border:1px solid var(--border);border-radius:12px;background:#fff;color:var(--primary);font-size:23px;cursor:pointer}.guide-mark{width:50px;height:50px;display:grid;place-items:center;border-radius:15px;background:linear-gradient(145deg,var(--primary),var(--primary-hover));color:#fff;font-weight:800;box-shadow:0 7px 18px rgba(139,21,56,.25)}.guide-eyebrow{color:var(--primary);font-size:10px;font-weight:800;letter-spacing:.15em;margin:18px 0 7px}.guide-modal>h2{font-size:25px;margin:0;color:var(--primary)}.guide-lead{color:var(--muted);font-size:14px;line-height:1.5}.guide-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:20px 0}.guide-grid section{display:flex;gap:11px;padding:13px;border:1px solid var(--border);border-radius:14px;background:#fcf9f9}.guide-grid section>span{flex:0 0 27px;width:27px;height:27px;display:grid;place-items:center;border-radius:9px;background:#f3e8eb;color:var(--primary);font-weight:800}.guide-grid h3{font-size:13px;margin:0 0 4px}.guide-grid p{font-size:11px;line-height:1.4;color:var(--muted);margin:0}.guide-method{display:flex;justify-content:space-between;gap:15px;padding:12px 14px;border-radius:13px;background:#f5eeee;color:var(--muted);font-size:11px}.guide-method b{color:var(--primary)}.primary-btn{width:100%;height:43px;margin-top:16px;border:0;border-radius:13px;background:linear-gradient(135deg,var(--primary),var(--primary-hover));color:#fff;font-weight:700;cursor:pointer;box-shadow:0 5px 15px rgba(139,21,56,.25)}
@media(max-width:760px){:root{--header-height:70px}.app-header{padding:9px 11px}.brand{gap:9px}.brand-mark{width:38px;height:38px;border-radius:11px}.brand p,.status-pill{display:none}h1{font-size:15px;max-width:190px}.guide-btn{width:36px;padding:0;font-size:0}.guide-btn::after{content:"?";font-size:16px}.icon-btn{width:36px}.result-panel{top:10px;left:10px;width:210px;padding:11px}.panel-kicker{font-size:9px}.value-row strong{font-size:35px}.result-main{align-items:flex-end}.overlay-panel{top:10px;right:10px;width:137px;padding:11px}.overlay-panel h2{font-size:13px}.overlay-panel label{font-size:11px;padding:5px 0}.legend-panel{left:10px;bottom:78px;width:180px}.layer-panel{right:10px;bottom:10px;width:calc(100% - 20px)}.research-note{display:none}.guide-modal{padding:22px 17px;border-radius:20px}.guide-modal>h2{font-size:21px;padding-right:24px}.guide-grid{grid-template-columns:1fr}.guide-method{display:block}.guide-method span{display:block;margin-top:3px}}@media(max-width:380px){.result-panel{width:190px}.overlay-panel{width:125px}.aq-label{font-size:9px}.value-row strong{font-size:32px}}

/* Interactive controls and selected-location trend */
.text-btn{height:38px;padding:0 14px;border:1px solid var(--border);background:var(--surface);border-radius:14px;color:var(--primary);box-shadow:0 3px 10px rgba(139,21,56,.08);font-size:12px;font-weight:700;cursor:pointer;transition:.2s}.text-btn:hover{background:var(--primary);color:#fff;transform:translateY(-1px)}.locate-btn span{color:#1877d2;margin-right:5px}.locate-btn.locating{opacity:.65}.app-container.layer-expanded .legend-panel,.app-container.layer-expanded .research-note{bottom:186px}
.leaflet-popup-content-wrapper{border-radius:18px!important;border:1px solid var(--border);box-shadow:0 14px 35px rgba(45,27,27,.24)!important}.leaflet-popup-content{margin:0!important;width:270px!important}.leaflet-popup-tip{box-shadow:none!important}.location-popup{padding:15px 15px 12px;font-family:Calibri,"Segoe UI",Arial,sans-serif}.popup-top{display:flex;align-items:center;justify-content:space-between;gap:12px}.popup-top small{display:block;color:var(--primary);font-size:8px;font-weight:800;letter-spacing:.13em}.popup-top strong{display:block;color:var(--primary);font-size:27px;line-height:1;margin-top:3px}.popup-top strong span{font-size:10px;color:var(--muted);font-weight:500}.popup-top em{font-style:normal;padding:5px 8px;border-radius:999px;font-size:9px;font-weight:700}.popup-top em.good{background:#e1f3e9;color:#23704c}.popup-top em.moderate{background:#fff1cb;color:#865e00}.popup-top em.elevated{background:#f9dfdc;color:#98382f}.popup-title{margin-top:12px;font-size:11px;font-weight:700}.trend-chart{display:block;width:100%;height:76px;margin-top:2px;overflow:visible}.chart-axis{stroke:#dacdd1;stroke-width:1}.trend-line{fill:none;stroke:var(--primary);stroke-width:2.5;stroke-linejoin:round;stroke-linecap:round}.trend-chart circle{fill:#fff;stroke:var(--primary);stroke-width:2}.chart-time{display:flex;justify-content:space-between;color:var(--muted);font-size:8px;margin-top:-3px}.location-popup p{margin:7px 0 0;color:var(--muted);font-size:9px;line-height:1.35}.location-popup footer{margin-top:8px;padding-top:7px;border-top:1px solid #eadfe2;color:var(--muted);font-size:8px}.pm-popup .leaflet-popup-close-button{top:5px!important;right:5px!important;color:var(--primary)!important}
@media(max-width:760px){h1{max-width:170px}.text-btn{height:34px;padding:0 10px;font-size:10px}.locate-btn{font-size:0;width:35px;padding:0}.locate-btn span{font-size:14px;margin:0}.app-container.layer-expanded .legend-panel{bottom:205px}}
@media(max-width:410px){.brand-mark{display:none}h1{max-width:145px}.result-panel{top:10px;right:10px;width:auto}.overlay-panel{top:112px;right:10px;width:128px}.legend-panel{width:155px}}

/* Singapore overview and centred selected-location dialogue */
.overview-panel{right:20px;top:20px;width:220px;padding:13px}.overview-main{display:grid;grid-template-columns:auto 1fr;align-items:end;column-gap:7px;margin-top:7px}.overview-main strong{font-size:29px;line-height:1;color:var(--primary)}.overview-main>span{font-size:9px;color:var(--muted);padding-bottom:3px}.overview-main em{grid-column:1/-1;justify-self:start;margin-top:7px;padding:4px 7px;border-radius:999px;font-size:9px;font-style:normal;font-weight:700}.overview-main em.good{background:#e1f3e9;color:#23704c}.overview-main em.moderate{background:#fff1cb;color:#865e00}.overview-main em.elevated{background:#f9dfdc;color:#98382f}.distribution-track{position:relative;height:9px;margin-top:12px;border-radius:6px;background:linear-gradient(90deg,#4667de,#35b779,#fde725,#f1605d,#7a0403)}.distribution-track b,.distribution-track u{position:absolute;top:-4px;width:2px;height:17px;background:#fff;box-shadow:0 0 0 1px var(--primary);transform:translateX(-1px);text-decoration:none}.distribution-track u{background:#222;box-shadow:0 0 0 1px #fff}.distribution-labels{display:flex;justify-content:space-between;gap:5px;margin-top:5px;color:var(--muted);font-size:7px}.overview-panel>p{margin:8px 0 0;color:var(--muted);font-size:8px;line-height:1.3}.overlay-panel{top:222px}.location-dialog{position:absolute;z-index:1600;left:50%;top:50%;width:300px;transform:translate(-50%,-50%);background:#fff;border:1px solid var(--border);border-radius:20px;box-shadow:0 22px 65px rgba(45,27,27,.35)}.location-dialog[hidden]{display:none}.location-dialog::after{content:"";position:absolute;left:50%;bottom:-12px;width:24px;height:24px;background:#fff;border-right:1px solid var(--border);border-bottom:1px solid var(--border);transform:translateX(-50%) rotate(45deg)}.dialog-close{position:absolute;z-index:2;right:9px;top:8px;width:28px;height:28px;border:0;border-radius:9px;background:#f7eeee;color:var(--primary);font-size:20px;cursor:pointer}.dialog-loading{padding:35px 20px;color:var(--muted);font-size:12px;text-align:center}.history-empty{display:grid;place-items:center;height:78px;margin-top:7px;border:1px dashed var(--border);border-radius:11px;background:#fcf9f9;color:var(--muted);font-size:10px;line-height:1.4;text-align:center}.project-credit{display:grid;grid-template-columns:105px 1fr;gap:7px 12px;margin-top:12px;padding:13px 14px;border:1px solid var(--border);border-radius:13px;font-size:11px;line-height:1.35}.project-credit b{color:var(--primary)}.project-credit span{color:var(--muted)}
@media(max-width:760px){.header-actions{gap:5px}.text-btn{padding:0 8px}.locate-btn{width:35px}.overview-panel{top:10px;right:10px;width:190px}.overlay-panel{top:205px;right:10px;width:145px}.location-dialog{width:min(300px,calc(100% - 28px))}.app-container.layer-expanded .legend-panel{bottom:205px}.project-credit{grid-template-columns:1fr}.project-credit span{margin-bottom:3px}}
@media(max-width:410px){h1{max-width:132px}.header-actions .text-btn:not(.locate-btn){font-size:0;width:35px;padding:0}.header-actions .text-btn:not(.locate-btn)::after{content:"i";font-size:14px;font-weight:800}.overview-panel{left:10px;right:auto;width:190px}.overlay-panel{top:10px;right:10px;width:128px}.legend-panel{width:155px}}
.temperature-icon{background:transparent!important;border:0!important}.temperature-icon span{display:block;width:48px;padding:5px 4px;border:2px solid #fff;border-radius:999px;background:var(--temp-color);box-shadow:0 3px 10px rgba(20,35,50,.3);color:#fff;font-family:Calibri,"Segoe UI",Arial,sans-serif;font-size:10px;font-weight:800;line-height:1;text-align:center;white-space:nowrap}.temperature-toggle{margin-top:4px;padding-top:9px!important;border-top:1px solid var(--border)}