/* Immersive atlas. The page is a viewport, the state is a deliberate selection. */
:root{--page:#e8eeeb;--surface:#f7faf8;--soft:#dde7e0;--ink:#1e352e;--muted:#50665d;--line:#c4d1c9;--control:#80958a;--accent:#386b36;--accent-hover:#285426;--accent-soft:#d6eaca;--on-accent:#fff;--map:#e8eeeb;--d1:#8fab9c;--d1t:#19352b;--d2:#a2bcac;--d2t:#19352b;--d3:#b6cdb7;--d3t:#19352b;--d4:#c9d4ae;--d4t:#263520;--d5:#d4d8b1;--d5t:#263520;--panel-glass:#f4f9f2ed;--scene-line:#a9c0b4;--shadow:0 24px 70px #11291b12}
:root[data-theme="dark"]{--page:#10191c;--surface:#192528;--soft:#233337;--ink:#eef4ee;--muted:#a6b9b2;--line:#34474a;--control:#68847c;--accent:#d0f49c;--accent-hover:#e1ffc1;--accent-soft:#354a32;--on-accent:#20301d;--map:#10191c;--panel-glass:#172427f2;--scene-line:#304c46;--shadow:0 24px 70px #0004}
body{background:var(--page)}.page-intro h1 span{font-family:var(--font);font-style:normal;font-weight:400;letter-spacing:-.06em}.site-header{position:relative;z-index:30;background:var(--page);border-bottom:1px solid var(--line)}.header-inner{min-height:76px;width:calc(100% - 64px);max-width:none}.brand{font-size:27px;letter-spacing:-1.4px}.brand img{width:30px;height:30px}.navigation{gap:8px}.navigation a{font-size:13px;min-height:44px;padding:10px 18px}.navigation a[aria-current="page"]{background:var(--soft);color:var(--ink);font-weight:400}.navigation a[aria-current="page"]:after{display:none}.header-actions{gap:12px}.plan-button{font-size:13px;border-color:var(--line)}.count-badge{background:var(--accent);color:var(--on-accent)}.theme-toggle{color:var(--muted)}
body[data-view="atlas"]{height:100dvh;overflow:hidden;padding-bottom:0}body[data-view="atlas"]>.site-footer{display:none}body[data-view="atlas"] #main{height:calc(100dvh - 77px)}
#view-atlas{height:100%;width:100%;margin:0;padding:0;position:relative;overflow:hidden;isolation:isolate;background:radial-gradient(ellipse at 50% 47%,#233932 0,transparent 65%)}:root:not([data-theme="dark"]) #view-atlas{background:radial-gradient(ellipse at 50% 47%,#c2d5c7 0,transparent 65%)}
.explorer-heading{position:absolute;left:40px;top:32px;z-index:4;pointer-events:none;transition:opacity .35s,transform .5s}.explorer-heading .eyebrow{font-size:9px;letter-spacing:.13em;color:var(--muted);margin-bottom:16px}.explorer-heading h1{font-size:clamp(30px,3.1vw,44px);font-weight:400;line-height:1.12;letter-spacing:-.055em}.explorer-heading h1 span{color:var(--accent)}.explorer-heading>p:last-child{font-size:13px;margin-top:16px;color:var(--muted)}
.atlas-workspace{display:block;height:100%;position:static}.map-column{position:absolute;inset:0;width:100%;height:100%;border:0;border-radius:0;background:transparent;overflow:visible;display:block}.map-toolbar{position:absolute;right:32px;top:32px;z-index:7;width:390px;padding:0;display:flex;flex-wrap:nowrap;gap:8px;transition:right .65s cubic-bezier(.22,1,.36,1)}.map-toolbar .search-field{flex-basis:auto;box-shadow:var(--shadow);background:var(--panel-glass);backdrop-filter:blur(16px);border-color:var(--line);border-radius:12px;padding:0 14px}.search-field input{font-size:14px}.view-switch{border-radius:12px;background:var(--panel-glass);backdrop-filter:blur(16px);border-color:var(--line);padding:3px;flex:none;gap:0}.view-switch button{min-width:44px;height:44px;padding:8px;border-radius:9px}.view-switch button span{display:none}.view-switch button[aria-pressed="true"]{background:var(--soft);color:var(--accent)}.map-filters{position:absolute;right:32px;top:87px;padding:0;z-index:7;width:390px;gap:10px;flex-wrap:nowrap;transition:right .65s cubic-bezier(.22,1,.36,1)}.map-filters select{font-size:12px;color:var(--muted);max-width:165px;background:transparent}.map-total{font-size:10px}.map-filters .subtle-button{font-size:11px}.inspecting .map-toolbar,.inspecting .map-filters{right:448px}
#map-3d{position:absolute;inset:0;z-index:1;transition:opacity .3s}#map-3d.is-muted{opacity:.25;pointer-events:none}#map-3d canvas{display:block;width:100%;height:100%;touch-action:none;cursor:grab}#map-labels{position:absolute;inset:0;pointer-events:none;overflow:hidden}.scene-label{position:absolute;left:0;top:0;font:10px/1 var(--mono);font-weight:600;color:#172b25;min-width:22px;min-height:22px;padding:6px 4px;pointer-events:auto;border-radius:5px;white-space:nowrap;background:transparent}.scene-label.selected{padding:11px 16px;font:600 14px/1.2 var(--font);background:var(--accent);color:var(--on-accent);box-shadow:0 8px 32px #0003;z-index:2;min-width:44px;min-height:38px}.scene-tooltip{position:absolute;z-index:10;pointer-events:none;background:var(--surface);border:1px solid var(--line);color:var(--ink);border-radius:12px;padding:14px 18px;box-shadow:var(--shadow)}.scene-tooltip strong{display:block;font-size:16px;font-weight:600}.scene-tooltip span{display:block;font-size:11px;color:var(--muted);margin-top:4px}#scene-loading{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;gap:16px;color:var(--muted);font-size:14px;background:var(--page);z-index:3}.loading-orbit{width:28px;height:28px;border:1px solid var(--line);border-top-color:var(--accent);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}
.map-canvas{position:absolute;inset:160px 80px 150px;display:flex;padding:0;background:transparent;z-index:2;min-height:0;transition:opacity .3s}.map-canvas:after{display:none}.map-coordinate,.map-caption{display:none}.scene-ready:not(.no-webgl) .map-canvas{opacity:0;pointer-events:none;z-index:-1}.scene-ready:not(.no-webgl) #us-map{pointer-events:none}.no-webgl .map-canvas{opacity:1;pointer-events:auto;z-index:2}.no-webgl #map-3d{display:none}.no-webgl .scene-controls{display:none}.state-path{stroke:var(--page);stroke-width:2}.state-path[aria-pressed="true"]{fill:var(--accent)}.state-label{fill:var(--ink)}.state-path:focus-visible{stroke:var(--accent);stroke-width:6}.scene-ready #us-map:focus-within{position:absolute;inset:0;z-index:12;background:var(--page);opacity:1}.map-canvas:has(#us-map:focus-within){opacity:1!important;z-index:12!important;pointer-events:auto!important}
.legend{position:absolute;bottom:88px;left:40px;z-index:5;margin:0;padding:0;border:0;background:transparent;max-width:620px;transition:opacity .3s}.legend-heading{justify-content:flex-start;gap:20px}.legend-heading>span{font-size:11px}.legend-heading .text-button{font-size:11px;min-height:36px}.legend-options{gap:12px;justify-content:flex-start}.legend-options button{flex:0 1 auto;padding:4px 8px 4px 0;gap:8px;flex-direction:row;font-size:10px;min-height:44px;border:0;color:var(--muted);background:none}.legend-options button>span:last-child{display:block}.legend-options button:hover,.legend-options button[aria-pressed="true"]{background:var(--soft);color:var(--ink);box-shadow:0 0 0 1px var(--control)}.legend .swatch{border-radius:50%;height:14px;min-width:14px;width:14px;font-size:0}.legend-options button[aria-pressed="true"] .swatch{box-shadow:0 0 0 2px var(--page),0 0 0 3px var(--accent)}
.explorer-bottom{position:absolute;bottom:28px;left:40px;right:32px;z-index:6;display:flex;align-items:center;justify-content:space-between;gap:24px;pointer-events:none}.explorer-bottom>*{pointer-events:auto}.route-launch{display:flex;align-items:center;gap:12px;text-align:left;color:var(--muted);font-size:10px;padding:0;min-height:48px}.route-launch strong{display:block;font-weight:400;color:var(--ink);font-size:14px;margin-top:2px}.route-launch-icon{display:grid;place-items:center;width:44px;height:44px;border:1px solid var(--control);border-radius:50%;font-size:22px;color:var(--accent);transition:background .2s}.route-launch:hover .route-launch-icon{background:var(--soft)}.scene-help{font-size:11px;color:var(--muted);display:flex;align-items:center;gap:8px}.scene-help>span{font-size:24px}.scene-controls{display:flex;align-items:center;gap:4px;padding:4px;background:var(--panel-glass);backdrop-filter:blur(12px);border:1px solid var(--line);border-radius:14px}.scene-controls .icon-button{border-radius:9px;font-size:23px}.scene-controls #flat-camera{font:12px var(--mono)}.scene-controls [aria-pressed="true"]{background:var(--soft);color:var(--accent)}.projection-note{position:absolute;bottom:5px;left:40px;font-size:9px;color:var(--muted);z-index:3}
.state-list,.search-results,.map-empty{position:absolute;right:32px;top:136px;z-index:8;width:390px;max-height:calc(100% - 244px);padding:12px;overflow:auto;background:var(--panel-glass);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);backdrop-filter:blur(20px)}.state-list{display:grid;grid-template-columns:1fr;gap:4px}.state-item{min-height:48px;padding:10px 12px;font-size:14px;background:transparent}.state-item .swatch{color:#19352b}.search-results{display:grid;gap:4px}.search-results button{display:flex;justify-content:space-between;border:0;background:transparent;color:var(--ink);font-size:14px;padding:12px;min-height:48px}.search-results button:hover{background:var(--soft)}.map-empty{padding:28px;min-height:0;font-size:16px}.inspecting .state-list,.inspecting .search-results,.inspecting .map-empty{right:448px}
/* The notebook is absent until a choice is made; motion preserves geography. */
#state-detail{position:absolute;right:24px;top:24px;bottom:100px;z-index:12;width:392px;border-radius:20px;border:1px solid var(--line);background:var(--panel-glass);backdrop-filter:blur(28px);box-shadow:var(--shadow);opacity:0;visibility:hidden;transform:translateX(440px);transition:transform .65s cubic-bezier(.22,1,.36,1),opacity .35s,visibility 0s .65s;max-height:none}.inspecting #state-detail{opacity:1;visibility:visible;transform:translateX(0);transition:transform .7s cubic-bezier(.22,1,.36,1),opacity .4s .1s,visibility 0s}.detail-cover{padding:12px 24px 0}.detail-top .eyebrow{font-size:9px}.detail-paging{gap:0}.detail-paging .icon-button{width:36px;min-width:36px;height:44px}.detail-paging #close-inspector{width:44px;min-width:44px;border-left:1px solid var(--line);border-radius:0 8px 8px 0;margin-left:4px}.state-heading{min-height:64px;margin-top:12px}.state-heading h2{font-size:36px;font-weight:400}.state-en{font-size:11px}.state-outline{fill:var(--accent);opacity:1;width:64px;height:64px}.detail-region{font-size:13px}.detail-level{font-size:11px}.detail-actions{padding:20px 24px 6px}.detail-tabs{padding-inline:24px;gap:24px}.detail-tabs button{font-size:14px;font-weight:400!important}.detail-tabs button[aria-pressed="true"]{color:var(--accent)}.detail-scroll{padding:0 24px 24px;max-height:none;flex:1;min-height:0}.detail-features li{font-size:14px}.detail-footnote{font-size:10px;background:transparent}.phrase-card blockquote{font-family:var(--font);font-style:normal;font-size:22px}.detail-movie h3{font-weight:400}.inspecting .explorer-heading{opacity:.55}.inspecting .scene-help{opacity:0}.inspecting .scene-controls{margin-right:416px}
.routes-section{position:absolute;z-index:16;left:32px;bottom:96px;width:min(960px,calc(100% - 64px));padding:32px;background:var(--panel-glass);border:1px solid var(--line);border-radius:20px;backdrop-filter:blur(28px);box-shadow:var(--shadow);margin:0;max-height:calc(100% - 130px);overflow:auto;animation:routes-in .3s ease}.close-routes{position:absolute;top:20px;right:20px}.routes-section .section-heading{padding-right:44px}.routes-section .section-heading>a{display:none}.routes-section h2{font-size:32px}.route-grid{gap:16px}.route-card,.route-peach,.route-lilac{background:var(--soft);padding:20px;border-color:var(--line)}.route-card>strong{font-size:21px;font-weight:400}.route-top{margin-bottom:20px;gap:10px}.route-symbol{font:32px var(--font);letter-spacing:-.05em}.route-top .small-label{font-size:8px}.route-description{font-size:13px}.route-states{font-size:10px}.route-link{font-size:12px}.route-link b{width:28px;height:28px}.route-card:hover{transform:translateY(-2px);border-color:var(--control)}@keyframes routes-in{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
/* Secondary screens use the same restrained, readable system. */
.film-tools{background:var(--surface)}.film-art{filter:saturate(.5)}.film-card h2{font-weight:400}.route-card,.film-card{transform:none!important}.practice-sidebar{background:var(--surface)}.practice-panel{background:var(--surface)}textarea{background-color:var(--page);background-image:none}.timer output{color:var(--accent);font-weight:400}.method-steps>div>span{font:48px var(--font)}.scale-explained{background:var(--soft)}.toast{z-index:100}.filter-button,.button,.select-label select,select{border-radius:10px}
@media(max-width:1150px){.header-inner{width:calc(100% - 40px);gap:20px}.navigation a{padding-inline:12px}.map-toolbar,.map-filters,.state-list,.search-results,.map-empty{width:330px;right:24px}.explorer-heading{left:28px;top:28px}.explorer-heading h1{font-size:34px}.inspecting .explorer-heading{opacity:0}.inspecting .map-toolbar,.inspecting .map-filters,.inspecting .state-list,.inspecting .search-results,.inspecting .map-empty{right:432px;width:300px}.scene-help{display:none}.legend{left:28px;max-width:520px}.legend-options{gap:8px}.legend-options button{font-size:9px}.explorer-bottom{left:28px;right:24px}.projection-note{left:28px}.inspecting .scene-controls{margin-right:0}.inspecting .legend{max-width:calc(100% - 450px)}.inspecting .legend-options button>span:last-child{display:none}.inspecting .legend-options{gap:24px}}
@media(max-width:900px) and (min-width:761px){.navigation{gap:0}.navigation a{font-size:12px;padding-inline:10px}.header-actions{gap:4px}.plan-button{padding:8px 10px;font-size:12px}.brand{font-size:24px}.header-inner{gap:12px}.explorer-heading{max-width:310px}.legend-options button>span:last-child{display:none}.legend-options{gap:24px}.inspecting .map-toolbar,.inspecting .map-filters,.inspecting .state-list,.inspecting .search-results,.inspecting .map-empty{right:432px;left:20px;width:auto}.map-filters{flex-wrap:wrap}.inspecting .map-total{display:none}}
@media(max-width:760px){body{padding-bottom:calc(76px + env(safe-area-inset-bottom))}.header-inner{width:calc(100% - 32px);min-height:64px}.brand{font-size:25px}.brand img{width:28px;height:28px}.header-actions{gap:4px}.plan-button{font-size:12px}.navigation{padding-bottom:calc(6px + env(safe-area-inset-bottom));background:var(--surface)}.navigation a{font-size:10px;padding:6px 2px;min-height:54px}.navigation a[aria-current="page"]{background:var(--soft);color:var(--accent)}body[data-view="atlas"] #main{height:calc(100dvh - 133px - env(safe-area-inset-bottom))}.explorer-heading{top:106px;left:24px;right:24px}.explorer-heading h1{font-size:30px}.explorer-heading h1 br{display:none}.explorer-heading .eyebrow{font-size:8px;margin-bottom:10px}.explorer-heading>p:last-child{font-size:12px;margin-top:8px}.map-toolbar,.inspecting .map-toolbar{left:16px;right:16px;width:auto;top:16px;gap:8px}.map-toolbar .search-field{padding-inline:12px}.search-field input{font-size:16px}.view-switch button{min-width:44px}.map-filters,.inspecting .map-filters{left:20px;right:20px;top:68px;width:auto;gap:8px;flex-wrap:nowrap}.map-filters select{font-size:12px;min-height:36px}.map-total{font-size:9px}.map-filters .subtle-button{font-size:10px;min-height:36px}.map-canvas{inset:190px 16px 150px}.legend{left:24px;right:24px;bottom:91px;max-width:none}.legend-heading{justify-content:space-between}.legend-heading>span{font-size:10px}.legend-heading .text-button{font-size:10px;min-height:32px}.legend-options{gap:16px;justify-content:space-between}.legend-options button{padding:6px 8px;min-width:44px;justify-content:center}.legend-options button>span:last-child{display:none}.legend .swatch{width:20px;height:20px;min-width:20px}.explorer-bottom{left:20px;right:16px;bottom:28px;gap:12px}.route-launch{gap:8px;font-size:9px;min-height:44px}.route-launch strong{font-size:12px}.route-launch-icon{width:36px;height:36px;font-size:20px}.scene-controls{gap:0;padding:2px;border-radius:12px}.scene-controls .icon-button{width:36px;min-width:36px;height:44px;font-size:22px}.scene-controls #flat-camera{font-size:10px}.projection-note{left:20px;right:20px;bottom:5px;font-size:7px;white-space:normal}.scene-label{font-size:9px;padding:8px 6px}.scene-label.selected{font-size:12px;padding:10px 14px}.state-list,.search-results,.map-empty,.inspecting .state-list,.inspecting .search-results,.inspecting .map-empty{left:16px;right:16px;top:106px;width:auto;max-height:calc(100% - 126px);padding:10px}.state-item{min-height:48px}.search-results button{font-size:15px}.inspecting .explorer-heading,.inspecting .legend,.inspecting .explorer-bottom,.inspecting .projection-note{opacity:0;visibility:hidden;pointer-events:none}.inspecting .map-filters{opacity:0;visibility:hidden}#state-detail{left:8px;right:8px;top:auto;bottom:0;width:auto;height:58%;max-height:calc(100% - 90px);border-radius:22px 22px 0 0;transform:translateY(110%);transition:transform .65s cubic-bezier(.22,1,.36,1),opacity .35s,visibility 0s .65s;background:var(--panel-glass)}.inspecting #state-detail{transform:translateY(0)}.detail-cover{padding:4px 20px 0}.detail-top .eyebrow{font-size:8px}.detail-paging .icon-button{min-width:44px;width:44px}.state-heading{margin-top:0;min-height:44px}.state-heading h2{font-size:28px}.state-en{font-size:10px;margin-bottom:4px}.state-outline{width:44px;height:44px}.detail-region{margin-top:6px;font-size:12px}.detail-level{margin-top:6px;font-size:10px}.detail-actions{padding:12px 20px 0;gap:0 8px}.detail-audio{min-height:44px;font-size:13px}.save-state{height:44px;width:46px}.detail-compare{font-size:12px;min-height:36px}.share-state{height:36px}.detail-tabs{padding-inline:20px;gap:24px}.detail-tabs button{min-height:44px;font-size:13px;padding:8px 0}.detail-scroll{padding:0 20px 20px;min-height:0;max-height:none;overscroll-behavior:contain}.detail-features li{font-size:14px;line-height:1.8}.detail-footnote{display:none}.routes-section{left:8px;bottom:8px;width:calc(100% - 16px);max-height:calc(100% - 24px);padding:24px;border-radius:18px}.routes-section .section-heading{padding-right:32px}.routes-section h2{font-size:28px}.route-grid{grid-template-columns:1fr}.route-card{padding:20px}.route-top{margin-bottom:12px}.route-top .small-label{font-size:9px}.route-card>strong{font-size:24px}.route-description{font-size:14px}.route-states{font-size:11px;margin-top:12px}.route-link{margin-top:16px}.toast{bottom:calc(86px + env(safe-area-inset-bottom))}}
@media(max-width:380px){.header-inner{width:calc(100% - 24px)}.brand{font-size:23px;gap:7px}.plan-button{padding:8px;font-size:11px}.header-actions{gap:0}.route-launch>span:last-child{font-size:0}.route-launch strong{font-size:11px}.scene-controls .icon-button{width:36px;min-width:36px}.explorer-heading h1{font-size:27px}}
@media(max-height:740px) and (min-width:761px){.explorer-heading h1{font-size:30px}.explorer-heading>p:last-child{display:none}#state-detail{bottom:22px;top:16px}.detail-cover{padding-top:4px}.state-heading{margin-top:0}.detail-region{margin-top:6px}.detail-actions{padding-top:12px}.detail-level{margin-top:8px}.detail-tabs button{min-height:44px}.detail-footnote{display:none}.inspecting .scene-controls{margin-right:416px}.legend{bottom:82px}.legend-heading{display:none}}
@media(prefers-reduced-motion:reduce){#state-detail,.explorer-heading,.map-toolbar,.map-filters{transition:none!important}.loading-orbit{animation:none}.routes-section{animation:none}}
.inspecting .explorer-heading{opacity:0;visibility:hidden}.sheet-handle{display:none}
@media(max-width:760px){.explorer-heading h1 br{display:block}.explorer-heading h1{font-size:29px}.explorer-heading{top:107px}.sheet-handle{display:flex;align-items:center;justify-content:center;width:100%;height:24px;min-height:24px;flex:none;padding:0}.sheet-handle span{width:40px;height:4px;border-radius:4px;background:var(--control)}#state-detail{height:62%;transition:transform .65s cubic-bezier(.22,1,.36,1),height .45s cubic-bezier(.22,1,.36,1),opacity .35s,visibility 0s .65s}.inspecting #state-detail{transition:transform .65s cubic-bezier(.22,1,.36,1),height .45s cubic-bezier(.22,1,.36,1),opacity .35s,visibility 0s}.sheet-expanded #state-detail{height:calc(100% - 76px)}.detail-cover{padding-top:0}.detail-top{height:40px}.detail-top .eyebrow{display:none}.detail-paging{margin-left:auto}.state-heading{margin-top:-36px;padding-right:144px;min-height:44px}.state-outline{display:none}.state-heading h2{font-size:25px}.state-en{font-size:9px}.detail-region{margin-top:10px;max-width:100%;font-size:12px}.detail-level{font-size:10px;margin-top:6px}.detail-actions{padding-top:10px}.sheet-expanded .sheet-handle span{background:var(--accent)}}
.intro-counter,.practice-total{flex-shrink:0}