:root{--bg: #f6f7fb;--surface: #ffffff;--surface-alt: #f0f7ff;--text: #152238;--muted: #5f6b7a;--border: #dde3ec;--primary: #0f6d8e;--primary-600: #0a5570;--accent: #f59e0b;--uv-low: #22c55e;--uv-moderate: #84cc16;--uv-high: #f59e0b;--uv-very-high: #f97316;--uv-extreme: #dc2626;--danger: #b91c1c;--focus: #0891b2;font-family:Avenir Next,Avenir,Segoe UI,sans-serif;color:var(--text);background:radial-gradient(circle at 50% -20%,#fff3d8,#f6f7fb 48%)}*{box-sizing:border-box}body{margin:0;min-height:100vh}button,input,select,summary{font:inherit}#app{width:100%}.gate-shell{min-height:100vh;display:grid;place-items:center;padding:20px}.gate-card{width:min(420px,100%);background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:22px;box-shadow:0 12px 26px #0f172a1a;display:grid;gap:12px}.gate-kicker{margin:0;color:var(--muted);font-size:.8rem;letter-spacing:.08em;text-transform:uppercase}.gate-card h1{margin:0;font-size:1.8rem}.gate-subtext{margin:0;color:var(--muted)}.gate-label{display:grid;gap:6px;font-weight:600}.gate-input,.gate-btn{width:100%}.app-shell{width:min(980px,100%);margin:0 auto;padding:18px 14px 96px}.hero{background:linear-gradient(140deg,#07172f,#0e7490);color:#ecfeff;border-radius:18px;padding:18px;box-shadow:0 14px 34px #030f1f3d}.hero-kicker{margin:0;font-size:.76rem;letter-spacing:.14em;text-transform:uppercase}.hero h1{margin:6px 0 0;font-size:clamp(1.25rem,4.8vw,1.9rem);line-height:1.24}.main-content{margin-top:16px}.page-nav{position:fixed;left:50%;bottom:14px;transform:translate(-50%);width:min(360px,calc(100% - 24px));display:grid;grid-template-columns:repeat(3,1fr);gap:8px;background:#0a1727e6;-webkit-backdrop-filter:blur(9px);backdrop-filter:blur(9px);border-radius:16px;padding:8px;box-shadow:0 12px 28px #0206174d;z-index:90}.nav-tab{border:0;border-radius:10px;padding:8px 6px;background:transparent;color:#dbeafe;display:grid;justify-items:center;gap:2px;cursor:pointer}.nav-tab.active{background:#e0f2fe;color:#075985}.nav-icon{font-size:1.05rem;line-height:1}.nav-label{font-size:.76rem;font-weight:700}.page-panel{display:grid;gap:14px}.panel-header h2{margin:0 0 5px}.panel-header p{margin:0;color:var(--muted)}.card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:14px;box-shadow:0 8px 22px #0f172a0f}.primary-btn,.secondary-btn,.icon-btn{border-radius:10px;padding:10px 13px;border:1px solid transparent;cursor:pointer;transition:transform .14s ease,background-color .14s ease}.primary-btn{background:var(--primary);color:#fff}.primary-btn:hover{background:var(--primary-600)}.secondary-btn,.icon-btn{background:#f8fafc;border-color:var(--border);color:var(--text)}.secondary-btn.active,.secondary-btn:hover,.icon-btn:hover{background:#e8f2ff;border-color:#b9d4ff}input,select{border:1px solid var(--border);border-radius:10px;padding:10px;background:#fff}input:focus,select:focus,button:focus,summary:focus{outline:2px solid var(--focus);outline-offset:2px}label{display:grid;gap:6px;font-weight:600}.status-message,.chart-caption{color:var(--muted);margin:0}.status-message.error{color:#b91c1c;font-weight:700}.alert-banner{border-radius:12px;background:#fee2e2;border:1px solid #fecaca;color:var(--danger);padding:11px;display:flex;gap:8px;align-items:baseline}.home-head{display:flex;align-items:center;justify-content:space-between;gap:10px}.switch-row{display:inline-grid;grid-auto-flow:column;align-items:center;gap:8px;font-weight:600}.switch-stack{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end}.switch-input{position:absolute;opacity:0;pointer-events:none}.switch-track{width:44px;height:24px;border-radius:999px;background:#cfd8e3;position:relative}.switch-track:after{content:"";position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;background:#fff;transition:transform .2s ease}.switch-input:checked+.switch-track{background:#0ea5e9}.switch-input:checked+.switch-track:after{transform:translate(20px)}.uv-card{text-align:center;padding:20px 16px;border-left:0;border-top:6px solid transparent}.uv-placeholder{display:grid;place-items:center;min-height:140px;text-align:center}.uv-value{font-size:3.1rem;line-height:1;margin:8px 0;font-weight:800}.level{font-weight:700}.location,.recommendation,.level{margin:6px 0}.uv-low{border-top-color:var(--uv-low)}.uv-moderate{border-top-color:var(--uv-moderate)}.uv-high{border-top-color:var(--uv-high)}.uv-very-high{border-top-color:var(--uv-very-high)}.uv-extreme{border-top-color:var(--uv-extreme)}.mode-card{display:grid;gap:12px}.mode-buttons,.figure-controls{display:flex;gap:8px;flex-wrap:wrap}.input-stack{display:grid;gap:10px}.manual-panel{border:1px dashed var(--border);border-radius:12px;padding:8px 10px}.manual-panel summary{cursor:pointer;font-weight:700;margin-bottom:8px}.compact-modal{width:min(480px,92vw)}.myth-carousel{display:grid;gap:10px}.myth-card{min-height:196px;display:grid;gap:12px}.myth-card h3{margin:0}.myth-text{margin:0;color:#334155;line-height:1.5}.carousel-controls{display:flex;align-items:center;justify-content:space-between;gap:8px}.carousel-dots{display:flex;gap:6px}.dot-btn{width:8px;height:8px;border-radius:50%;border:0;background:#cbd5e1;cursor:pointer}.dot-btn.active{background:#0ea5e9}.figures-row{justify-content:flex-start}.chart-card h3{margin:0 0 6px}.chart-layout{display:grid;grid-template-columns:42px 1fr;gap:8px;align-items:end}.chart-layout-tall{min-height:350px}.y-axis{height:286px;display:flex;flex-direction:column;justify-content:space-between;text-align:right;font-size:.75rem;color:var(--muted)}.bar-chart-scroll{overflow-x:auto}.bar-chart{min-height:300px;min-width:620px;display:grid;grid-template-columns:repeat(auto-fit,minmax(44px,1fr));align-items:end;gap:8px;border-left:1px solid var(--border);border-bottom:1px solid var(--border);padding:8px 0 0 8px}.bar-item{display:grid;align-items:end;height:280px;grid-template-rows:1fr auto;gap:6px}.bar{width:100%;align-self:end;border-radius:8px 8px 4px 4px;background:linear-gradient(180deg,#f59e0b,#f97316)}.bar-label{font-size:.72rem;color:var(--muted);text-align:center;white-space:nowrap}.line-card{display:grid;gap:10px}.city-filter-row{display:flex;flex-wrap:wrap;gap:8px}.city-chip{border:1px solid #d1d5db;border-radius:999px;padding:6px 10px;background:#fff;cursor:pointer}.city-chip.selected{background:#e0f2fe;border-color:#7dd3fc;color:#075985;font-weight:700}.city-chip:disabled{cursor:not-allowed;opacity:.45}.line-chart-wrapper{min-height:312px;border-left:1px solid var(--border);border-bottom:1px solid var(--border);padding-left:8px;display:grid;grid-template-rows:1fr auto}.line-chart{width:100%}.grid-line{stroke:#e5e7eb;stroke-width:.35}.x-axis{display:flex;justify-content:space-between;color:var(--muted);font-size:.78rem;padding-top:6px}.chart-legend{display:flex;flex-wrap:wrap;gap:9px}.legend-item{display:inline-flex;gap:6px;align-items:center;font-size:.84rem}.legend-dot{width:10px;height:10px;border-radius:50%}.scale-card{display:grid;gap:8px}.scale-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.scale-chip{border:1px solid var(--border);border-radius:12px;padding:10px;display:grid;justify-items:start;gap:2px;color:#111827;cursor:pointer}.scale-chip small{color:#1f2937;font-weight:700}.scale-chip.active{outline:2px solid #0ea5e9}.tone-i{background:#fff4dd}.tone-ii{background:#fbe8c8}.tone-iii{background:#f2d7b4}.tone-iv{background:#e6bf95}.tone-v{background:#b98d68}.tone-vi{background:#7a5538;color:#f8fafc}.tone-vi small{color:#e2e8f0}.guidance-card h3{margin:0 0 8px}.guidance-card ul,.source-list{padding-left:18px}.source-list a{color:#0c4a6e}.modal-overlay{position:fixed;inset:0;background:#0206179e;display:grid;place-items:center;padding:20px;z-index:100}.modal-card{width:min(560px,92vw);background:var(--surface);border-radius:14px;padding:18px;border:1px solid var(--border)}@media(min-width:900px){.app-shell{padding:24px 24px 118px}.hero{padding:24px}.scale-row{grid-template-columns:repeat(6,minmax(0,1fr))}.page-nav{width:min(430px,calc(100% - 36px))}}