/* Dialects — a field atlas. All interface colors and dimensions live here. */
:root{color-scheme:light;--page:#f6f3ec;--surface:#fffdf8;--soft:#ede9df;--ink:#242b25;--muted:#66695f;--line:#dcdcd0;--control:#909486;--accent:#bd3926;--accent-hover:#9b2b1c;--accent-soft:#f9e7de;--on-accent:#fffaf1;--map:#ecede2;--d1:#d3dbbd;--d1t:#343d2c;--d2:#b2c2a5;--d2t:#2c3b2a;--d3:#d7b981;--d3t:#453618;--d4:#c88c65;--d4t:#321e13;--d5:#986650;--d5t:#fff9f1;--font:'Golos Text',Arial,sans-serif;--mono:Menlo,Consolas,monospace;--radius:18px;--ease:180ms ease;--width:1440px;--shadow:0 8px 28px #303c2510}
:root[data-theme="dark"]{color-scheme:dark;--page:#191c19;--surface:#222722;--soft:#2c332b;--ink:#f0eee5;--muted:#b6bcab;--line:#434c3e;--control:#88947f;--accent:#ff9c79;--accent-hover:#ffb498;--accent-soft:#49362c;--on-accent:#281d15;--map:#272f28;--shadow:0 8px 28px #0002}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--page);color:var(--ink);font:16px/1.65 var(--font);-webkit-font-smoothing:antialiased}body.modal-open{overflow:hidden}button,input,select,textarea{font:inherit;color:inherit}button,a,summary{touch-action:manipulation}button{cursor:pointer;border:0;background:none}button:disabled{cursor:default;opacity:.45}a{color:inherit;text-decoration:none}svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}img{display:block;max-width:100%}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.12;letter-spacing:-.055em;font-weight:600}h1{font-size:clamp(40px,4.7vw,68px)}h2{font-size:36px}h3{font-size:22px}h1,h2,h3,p,button{overflow-wrap:break-word}::selection{background:var(--accent);color:var(--on-accent)}:focus-visible{outline:3px solid var(--accent);outline-offset:4px}[hidden]{display:none!important}.container{width:min(calc(100% - 80px),var(--width));margin-inline:auto}.view{padding:40px 0 80px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;left:16px;top:16px;transform:translateY(-200%);z-index:100;background:var(--accent);color:var(--on-accent);padding:12px 20px;border-radius:8px}.skip-link:focus{transform:none}.eyebrow,.small-label{font:11px/1.6 var(--mono);letter-spacing:.075em}.eyebrow{display:flex;align-items:center;gap:10px;color:var(--muted)}.accent-dot{width:7px;height:7px;border-radius:50%;background:var(--accent);display:inline-block;flex:none}.mobile-only{display:none}
/* Navigation stays quiet until it is needed. */
.site-header{border-bottom:1px solid var(--line)}.header-inner{display:flex;align-items:center;gap:40px;min-height:88px}.brand{display:inline-flex;align-items:center;gap:10px;font-size:30px;font-weight:800;letter-spacing:-1.7px;white-space:nowrap;min-height:44px}.brand img{width:34px;height:34px}.brand-dot{color:var(--accent)}.navigation{display:flex;align-items:center;gap:8px;margin:auto}.navigation a{min-height:48px;padding:12px 18px;color:var(--muted);font-size:14px;position:relative;display:flex;align-items:center;gap:8px;border-radius:8px;transition:color var(--ease),background var(--ease)}.navigation a>svg{display:none}.navigation a:hover{background:var(--soft);color:var(--ink)}.navigation a[aria-current="page"]{color:var(--accent);font-weight:600}.navigation a[aria-current="page"]:after{content:'';position:absolute;width:4px;height:4px;border-radius:50%;background:currentColor;bottom:4px;left:calc(50% - 2px)}.header-actions{display:flex;align-items:center;gap:12px}.icon-button{display:grid;place-items:center;min-width:44px;width:44px;height:44px;border-radius:50%;flex:none;font-size:24px;transition:background var(--ease)}.icon-button:hover{background:var(--soft)}.plan-button{display:flex;align-items:center;gap:10px;border:1px solid var(--control);border-radius:999px;background:transparent;min-height:46px;padding:8px 16px;font-size:14px}.plan-button:hover{background:var(--soft)}.plan-button svg{width:17px;height:17px}.count-badge{min-width:24px;height:24px;display:grid;place-items:center;border-radius:50%;background:var(--ink);color:var(--surface);font:11px var(--mono)}
/* An editorial opening with the working map immediately below. */
.page-intro{display:flex;justify-content:space-between;align-items:end;gap:40px;margin-bottom:36px}.page-intro .eyebrow{margin-bottom:16px}.page-intro h1 span{font-family:Georgia,'Times New Roman',serif;font-style:italic;font-weight:400;letter-spacing:-.055em;color:var(--accent)}.page-intro h1+p{font-size:16px;color:var(--muted);max-width:730px;margin-top:20px}.atlas-intro{align-items:center}.atlas-intro h1{font-size:clamp(48px,5.7vw,82px);white-space:nowrap}.intro-description{max-width:340px;padding-top:20px}.intro-description p{font-size:14px;line-height:1.8;color:var(--muted)}.intro-index{display:flex;align-items:center;gap:16px;font:10px var(--mono);letter-spacing:.06em;margin-top:20px;color:var(--muted)}.intro-index i{font:22px var(--font);color:var(--accent)}.intro-counter,.practice-total{font:12px var(--mono);color:var(--muted);white-space:nowrap;padding-bottom:4px}
/* Atlas: roomy map and a contained, independently scrollable notebook. */
.atlas-workspace{display:grid;grid-template-columns:minmax(0,1fr) 390px;gap:20px;align-items:stretch;height:674px}.map-column{background:var(--map);border:1px solid var(--line);border-radius:var(--radius);min-width:0;min-height:0;display:flex;flex-direction:column;position:relative;overflow:hidden}.map-toolbar{display:flex;gap:12px;padding:18px 20px 0}.search-field{display:flex;align-items:center;gap:12px;min-height:48px;flex:1;min-width:0;color:var(--muted);background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:0 14px}.search-field:focus-within{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-soft)}.search-field input{border:0;min-width:0;width:100%;background:transparent;font-size:14px;line-height:1.5;height:46px}.search-field input:focus-visible{outline:none}.search-field input::placeholder{color:var(--muted);opacity:1}.search-field svg{flex:none;width:19px;height:19px}.search-field kbd{font:11px var(--mono);padding:1px 6px;border:1px solid var(--line);border-radius:4px}.view-switch{display:flex;padding:4px;background:var(--surface);border:1px solid var(--line);border-radius:10px;gap:2px}.view-switch button{display:flex;align-items:center;justify-content:center;gap:7px;border-radius:6px;min-height:44px;min-width:44px;padding:6px 12px;color:var(--muted);font-size:12px}.view-switch button svg{width:18px;height:18px}.view-switch button[aria-pressed="true"]{background:var(--ink);color:var(--surface)}.map-filters{display:flex;align-items:center;gap:12px;padding:8px 20px 0}.select-label select,select{border:1px solid var(--control);border-radius:8px;min-height:46px;padding:8px 32px 8px 12px;background:var(--surface);font-size:14px;max-width:100%}.map-filters select{background:transparent;border-color:transparent;padding-left:0;font-size:13px}.subtle-button,.text-button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;background:none;font-size:13px;color:var(--muted);padding:8px 0}.subtle-button:hover,.text-button:hover{color:var(--accent)}.map-total{margin-left:auto;font:10px var(--mono);color:var(--muted);white-space:nowrap}.map-canvas{position:relative;padding:28px 14px 0;flex:1;min-height:0;display:flex;flex-direction:column;justify-content:center;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:120px 120px;background-position:center;isolation:isolate}.map-canvas:after{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at center,transparent 40%,var(--map) 85%);z-index:-1;pointer-events:none}.map-coordinate{position:absolute;top:12px;left:24px;font:9px var(--mono);letter-spacing:.13em;color:var(--muted)}.map-ocean{position:absolute;font:italic 12px/1.6 Georgia,serif;letter-spacing:.2em;color:var(--muted);text-align:center;pointer-events:none}.ocean-pacific{left:7%;top:53%}.ocean-atlantic{right:5%;top:72%}#us-map{width:100%;height:auto;display:block;stroke:none;max-height:100%;overflow:visible;min-height:0;flex:1}.state-path{stroke:var(--map);stroke-width:2.6;stroke-linejoin:round;cursor:pointer;transition:opacity var(--ease),filter var(--ease),fill var(--ease)}.state-path:hover{filter:brightness(1.08)}.state-path[aria-pressed="true"]{fill:var(--accent)}.state-path[aria-disabled="true"]{opacity:.14;cursor:default}.state-path:focus-visible{outline:none;stroke:var(--ink);stroke-width:5}.state-label{font:600 13px var(--mono);text-anchor:middle;dominant-baseline:middle;pointer-events:none;stroke:none}.state-label.external{text-anchor:start;fill:var(--ink)}.state-leader{stroke:var(--control);stroke-width:1;fill:none}.map-highlight{fill:none;stroke:var(--surface);stroke-width:1.5;pointer-events:none;vector-effect:non-scaling-stroke}.state-hit{fill:transparent;cursor:pointer}.map-caption{display:flex;justify-content:space-between;gap:16px;padding:12px 8px;color:var(--muted);font-size:10px;flex:none}.map-tooltip{position:absolute;pointer-events:none;z-index:3;padding:8px 12px;border-radius:6px;background:var(--ink);color:var(--surface);font-size:14px;box-shadow:var(--shadow)}.legend{padding:8px 20px 14px;border-top:1px solid var(--line);background:var(--map);flex:none}.legend-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}.legend-heading>span{font-size:12px;color:var(--muted)}.legend-heading .text-button{font-size:12px}.legend-options{display:flex;gap:6px}.legend-options button{display:flex;align-items:center;gap:7px;padding:7px;min-height:44px;border-radius:7px;font-size:11px;color:var(--muted);border:1px solid transparent;flex:1;white-space:nowrap}.legend-options button:hover,.legend-options button[aria-pressed="true"]{background:var(--surface);border-color:var(--control);color:var(--ink)}.swatch{height:26px;min-width:26px;padding:0 4px;display:inline-grid;place-items:center;border-radius:50%;font:11px var(--mono)}.level-1{background:var(--d1);color:var(--d1t)}.level-2{background:var(--d2);color:var(--d2t)}.level-3{background:var(--d3);color:var(--d3t)}.level-4{background:var(--d4);color:var(--d4t)}.level-5{background:var(--d5);color:var(--d5t)}.state-detail{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);min-width:0;min-height:0;display:flex;flex-direction:column;overflow:hidden;box-shadow:var(--shadow);scroll-margin-top:16px}.detail-cover{padding:12px 24px 0}.detail-top{display:flex;justify-content:space-between;align-items:center;gap:8px}.detail-top .eyebrow{font-size:9px}.detail-paging{display:flex;gap:2px}.detail-paging .icon-button{font-size:20px}.state-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:8px;min-height:76px}.state-heading h2{font-size:36px;letter-spacing:-.05em;overflow-wrap:anywhere}.state-en{font:11px var(--mono);color:var(--accent);margin-bottom:8px}.state-outline{height:65px;width:66px;flex:none;fill:var(--ink);stroke:none;opacity:.9}.detail-region{font-size:13px;line-height:1.6;color:var(--muted);margin-top:12px}.detail-level{display:flex;align-items:center;gap:10px;margin-top:12px;color:var(--muted);font-size:11px}.level-bars{display:flex;gap:3px}.level-bars i{height:14px;width:4px;border-radius:2px;background:var(--line)}.level-bars i:nth-child(1){height:6px;align-self:end}.level-bars i:nth-child(2){height:8px;align-self:end}.level-bars i:nth-child(3){height:10px;align-self:end}.level-bars i:nth-child(4){height:12px;align-self:end}.level-bars i.on{background:var(--accent)}.detail-actions{padding:20px 24px 10px;display:grid;grid-template-columns:1fr 46px;gap:4px 10px}.detail-audio{display:flex;align-items:center;justify-content:center;gap:10px;min-height:46px;background:var(--accent);color:var(--on-accent);font-size:14px;font-weight:600;border-radius:9px;transition:background var(--ease)}.detail-audio:hover{background:var(--accent-hover)}.save-state{border:1px solid var(--control);border-radius:9px;width:46px;height:46px}.save-state[aria-pressed="true"]{background:var(--accent-soft);color:var(--accent)}.detail-compare{min-height:44px;color:var(--muted);font-size:13px;text-align:left}.detail-compare:hover{color:var(--accent)}.share-state{font-size:16px}.share-state svg{width:18px}.detail-tabs{display:flex;gap:24px;border-bottom:1px solid var(--line);padding:0 24px;flex:none}.detail-tabs button{color:var(--muted);min-height:48px;padding:10px 0;font-size:14px;border-bottom:2px solid transparent}.detail-tabs button span{font:10px var(--mono);margin-left:6px}.detail-tabs button[aria-pressed="true"]{color:var(--ink);border-bottom-color:var(--accent);font-weight:600}.detail-scroll{padding:0 24px 20px;overflow:auto;min-height:0;overscroll-behavior-y:contain;scrollbar-width:thin;scrollbar-color:var(--control) transparent}.detail-scroll:focus-visible{outline-offset:-3px}.detail-features{list-style:none;padding:0;margin:0 0 24px;display:grid}.detail-features li{display:flex;gap:14px;padding:17px 0;border-bottom:1px solid var(--line);font-size:14px;line-height:1.8}.feature-number{font:10px/2.5 var(--mono);color:var(--accent);flex:none}.phrase-card{border-left:2px solid var(--accent);padding:0 0 0 16px}.phrase-card .small-label{color:var(--muted);font-size:9px}.phrase-card blockquote{margin:12px 0;font:italic 24px/1.4 Georgia,serif;letter-spacing:-.02em}.phrase-card .phonetic{font-size:14px;color:var(--accent);line-height:1.7}.phrase-note{font-size:12px;color:var(--muted);margin-top:16px;line-height:1.8}.detail-footnote{margin-top:auto;flex:none;display:flex;align-items:center;gap:8px;padding:10px 24px;border-top:1px solid var(--line);background:var(--soft);font-size:10px;color:var(--muted)}.detail-footnote .accent-dot{width:5px;height:5px}.detail-movie{display:flex;gap:16px;padding:20px 0;border-bottom:1px solid var(--line)}.movie-number{font:11px var(--mono);color:var(--accent);padding-top:4px}.detail-movie h3{font-size:18px;line-height:1.4}.detail-movie p{font-size:14px;line-height:1.8;color:var(--muted);margin-top:8px}.detail-movie-footer{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:8px}.detail-movie-footer>span{font:11px var(--mono);color:var(--muted)}.detail-movie-footer button{min-height:44px;color:var(--accent);font-size:12px;white-space:nowrap}.detail-all-films{min-height:44px;color:var(--accent);font-size:14px;margin-top:12px}.atlas-note{display:flex;gap:10px;margin-top:16px;color:var(--muted);font-size:12px}.state-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;padding:20px;flex:1;overflow:auto;min-height:0}.state-item{display:flex;align-items:center;gap:10px;background:var(--surface);border:1px solid transparent;border-radius:8px;padding:12px;text-align:left;min-height:60px;font-size:14px}.state-item[aria-pressed="true"]{border-color:var(--accent);background:var(--accent-soft)}.state-item .state-code{font:11px var(--mono);color:var(--muted)}.state-item .swatch{margin-left:auto}.search-results{display:flex;flex-wrap:wrap;gap:6px;padding:8px 20px}.search-results button{min-height:44px;padding:8px 12px;background:var(--surface);color:var(--accent);border:1px solid var(--line);border-radius:7px;font-size:12px}.map-empty{padding:48px 24px;flex:1;text-align:center}.map-empty p{font-size:14px;color:var(--muted);max-width:400px;margin:12px auto 24px}
/* Curated routes are illustrated by paths through real state outlines. */
.routes-section{margin-top:64px}.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:28px}.section-heading .eyebrow{margin-bottom:12px}.route-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.route-card{display:flex;flex-direction:column;align-items:flex-start;text-align:left;padding:24px 28px;border-radius:12px;border:1px solid var(--line);position:relative;min-width:0;background:var(--surface);transition:transform var(--ease),box-shadow var(--ease)}.route-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.route-top{display:flex;justify-content:space-between;align-items:center;width:100%;gap:12px;margin-bottom:28px}.route-symbol{font:italic 46px/1 Georgia,serif;letter-spacing:-.08em;color:var(--accent)}.route-top .small-label{font-size:10px;color:var(--muted)}.route-card>strong{font-size:26px;line-height:1.2;letter-spacing:-.045em;font-weight:600}.route-description{font-size:14px;color:var(--muted);margin-top:12px}.route-states{font-size:11px;margin-top:24px}.route-states i{font-style:normal;color:var(--accent);padding-inline:4px}.route-link{display:flex;justify-content:space-between;align-items:center;width:100%;font-size:14px;border-top:1px solid var(--line);margin-top:24px;padding-top:16px}.route-link b{display:grid;place-items:center;border:1px solid var(--line);border-radius:50%;width:32px;height:32px;font-size:19px;font-weight:400}.route-peach{background:var(--accent-soft)}.route-lilac{background:var(--map)}
/* Shared controls and states. */
.button{display:inline-flex;align-items:center;justify-content:center;gap:10px;border-radius:8px;min-height:48px;padding:12px 18px;font-size:14px;font-weight:600;line-height:1.5;border:1px solid transparent;transition:background var(--ease),border-color var(--ease)}.primary{background:var(--accent);color:var(--on-accent)}.primary:hover{background:var(--accent-hover)}.secondary{background:var(--surface);color:var(--ink);border-color:var(--control)}.secondary:hover{background:var(--soft)}.filter-button{min-height:48px;padding:8px 16px;background:var(--surface);border:1px solid var(--control);border-radius:8px;font-size:14px;white-space:nowrap}.filter-button[aria-pressed="true"]{background:var(--accent-soft);color:var(--accent);border-color:var(--accent)}.content-note{font-size:14px;color:var(--muted);line-height:1.8}.empty-state{text-align:center;padding:80px 20px}.empty-icon{font-size:48px;color:var(--muted);display:block;margin-bottom:16px}.empty-state p{color:var(--muted);margin:16px 0 24px}
/* Film library: geography-led covers rather than fabricated movie posters. */
.film-tools{display:flex;align-items:center;gap:12px;padding:16px;background:var(--surface);border:1px solid var(--line);border-radius:12px}.film-tools .search-field{background:var(--page)}.film-tools select{min-height:48px}.film-tools+.content-note{margin-top:16px;max-width:1050px;font-size:12px}.film-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;margin-top:36px}.film-card{background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden;display:flex;flex-direction:column;min-width:0;transition:box-shadow var(--ease),transform var(--ease)}.film-card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}.film-art{background:#dce3cf;color:#344333;display:flex;position:relative;padding:24px;min-height:180px;overflow:hidden;border-bottom:1px solid var(--line)}.film-region-south .film-art{background:#edd4b7;color:#694631}.film-region-northeast .film-art{background:#d5ddd9;color:#3b5551}.film-region-midwest .film-art{background:#e4dfce;color:#565143}.film-art:before{content:'';position:absolute;width:220px;height:220px;border:1px solid currentColor;border-radius:50%;right:-15px;top:-20px;opacity:.15}.film-art:after{content:'';position:absolute;width:160px;height:160px;border:1px solid currentColor;border-radius:50%;right:15px;top:10px;opacity:.15}.film-location{font-size:64px;font-weight:600;line-height:1;letter-spacing:-.08em;z-index:1}.film-location small{display:block;font:11px/1.5 var(--mono);letter-spacing:0;margin-top:10px}.film-art>svg{position:absolute;right:40px;top:30px;width:110px;height:110px;stroke:currentColor;stroke-width:1;fill:currentColor;opacity:.65;transform:rotate(-8deg)}.film-format{position:absolute;bottom:20px;left:24px;font:10px var(--mono)}.film-frame{position:absolute;right:24px;bottom:20px;font:22px var(--font)}.film-body{padding:24px;display:flex;flex-direction:column;flex:1}.film-card h2{font-size:26px;line-height:1.25;letter-spacing:-.045em;margin-bottom:16px}.film-meta{font:11px var(--mono);color:var(--muted);margin-bottom:12px}.film-description{font-size:14px;line-height:1.85;color:var(--muted);margin-bottom:20px}.film-states{display:flex;gap:8px;flex-wrap:wrap;margin-top:auto}.film-states button{min-height:44px;background:var(--soft);font-size:12px;border-radius:6px;padding:8px 12px;color:var(--ink)}.film-states button:hover{color:var(--accent)}.film-actions{display:flex;align-items:center;gap:12px;margin-top:24px;padding-top:20px;border-top:1px solid var(--line)}.film-actions>.button{flex:1;justify-content:space-between;border-color:var(--line)}.save-film[aria-pressed="true"]{background:var(--accent-soft);color:var(--accent)}
/* Practice is a focused writing workspace, with a visible session clock. */
.practice-layout{display:grid;grid-template-columns:300px minmax(0,1fr);gap:28px}.practice-sidebar,.practice-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px;min-width:0}.practice-sidebar{background:var(--map)}.practice-sidebar>label{display:block;font-size:14px;margin:24px 0 10px}.practice-sidebar>select{width:100%;font-size:14px}.practice-sidebar>.content-note{margin:20px 0;font-size:12px}.practice-sidebar>.button{width:100%;font-size:13px}.timer{margin-top:32px;padding-top:16px;border-top:1px solid var(--line)}.timer-label{display:flex;justify-content:space-between;align-items:center;font:10px var(--mono);color:var(--muted)}.timer output{display:block;font:76px/1.3 var(--font);font-variant-numeric:tabular-nums;letter-spacing:-5px;margin:0 0 24px}.timer>.button{width:100%}.local-note{font-size:12px;color:var(--muted);margin-top:24px}.practice-panel{padding:36px}.practice-steps{padding:0 0 28px;margin:0 0 32px;list-style:none;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;border-bottom:1px solid var(--line)}.practice-steps li{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted)}.practice-steps li>span{display:grid;place-items:center;width:36px;height:36px;flex:none;border-radius:50%;background:var(--soft);font:11px var(--mono)}.practice-steps li[aria-current="step"]{color:var(--accent)}.practice-steps li[aria-current="step"]>span{background:var(--accent);color:var(--on-accent)}.practice-steps strong{font-weight:400}.practice-task-label{color:var(--accent);font:11px var(--mono);margin-bottom:16px}#practice-task>h2{font-size:36px}#practice-task>p{color:var(--muted);font-size:16px;margin-top:20px;max-width:640px}#practice-task>label{display:block;font-size:14px;font-weight:600;margin:28px 0 12px}textarea{width:100%;min-height:220px;resize:vertical;border:1px solid var(--control);border-radius:8px;background:var(--surface);padding:20px;font-size:16px;line-height:1.9;background-image:repeating-linear-gradient(transparent 0,transparent 29px,var(--line) 30px,transparent 31px);background-origin:content-box;background-attachment:local}.practice-nav{display:flex;justify-content:space-between;gap:16px;margin-top:24px}.draft-status{font-size:12px;color:var(--muted);margin-top:20px}.history-section{margin-top:64px}.history-card{background:var(--surface);border:1px solid var(--line);border-radius:12px;margin-bottom:12px}.history-card summary{padding:24px;cursor:pointer;display:flex;justify-content:space-between;gap:16px;font-size:16px;list-style:none}.history-card summary::-webkit-details-marker{display:none}.history-card summary>span{font-size:12px;color:var(--muted)}.history-notes{padding:0 24px 24px}.history-notes h3{font-size:16px;margin-top:24px}.history-notes p{font-size:16px;white-space:pre-wrap;color:var(--muted);margin-top:12px;overflow-wrap:anywhere}.complete-badge{width:64px;height:64px;background:var(--accent-soft);color:var(--accent);border-radius:50%;display:grid;place-items:center;font-size:32px;margin-bottom:24px}
/* Reading pages carry the same type hierarchy and a persistent section index. */
.guide-layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:80px;align-items:start;padding-top:28px}.guide-nav{position:sticky;top:24px;display:grid;gap:8px}.guide-nav a{font-size:14px;min-height:48px;padding:12px 16px;border-left:2px solid var(--line);color:var(--muted)}.guide-nav a:hover{color:var(--accent);border-color:var(--accent)}.guide-content{max-width:920px}.guide-content article{padding:0 0 56px;margin-bottom:56px;border-bottom:1px solid var(--line)}.guide-content article>.eyebrow{margin-bottom:16px}.guide-content article>h2{margin-bottom:28px}.guide-content article>p{color:var(--muted);font-size:16px;line-height:1.9;margin-top:24px}.guide-content a:not(.button){color:var(--accent);text-decoration:underline;text-underline-offset:4px}.method-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-bottom:28px}.method-steps>div{padding:24px 0;border-top:1px solid var(--line)}.method-steps>div>span{font:italic 48px/1 Georgia,serif;color:var(--accent)}.method-steps h3{font-size:21px;margin-top:24px;line-height:1.4}.method-steps p{font-size:15px;line-height:1.85;color:var(--muted);margin-top:16px}.scale-explained{background:var(--map);padding:28px;border-radius:12px;margin-top:28px}.scale-explained p{font-size:16px;color:var(--muted);line-height:1.8}.scale-explained p+p{margin-top:20px}.scale-explained b{color:var(--ink)}.glossary{margin:0}.glossary>div{display:grid;grid-template-columns:190px 1fr;gap:28px;border-top:1px solid var(--line);padding-block:24px}.glossary dt{font-size:16px;font-weight:600}.glossary dd{margin:0;font-size:16px;line-height:1.9;color:var(--muted)}.source-links{display:grid;gap:16px}.source-links a{display:block;padding:28px;border-radius:12px;background:var(--surface);border:1px solid var(--line);text-decoration:none!important}.source-links a strong{font-size:18px;display:flex;justify-content:space-between;gap:16px;line-height:1.4}.source-links a>span{display:block;font-size:14px;color:var(--muted);line-height:1.8;margin-top:12px}.site-footer{display:flex;align-items:center;gap:28px;border-top:1px solid var(--line);padding-block:28px;color:var(--muted);font-size:12px}.footer-brand{font-size:26px;color:var(--ink);gap:0}.site-footer>a:not(.brand){margin-left:auto;min-height:44px;display:flex;align-items:center}.site-footer>a:hover{color:var(--accent)}.footer-local{font-size:11px}.nojs{padding-block:48px}.nojs a{color:var(--accent);text-decoration:underline}
/* Native dialogs provide focus containment, Escape and scroll locking. */
dialog{border:1px solid var(--line);background:var(--surface);color:var(--ink);padding:36px;border-radius:18px;width:min(1120px,calc(100% - 48px));max-height:calc(100dvh - 48px);overflow:auto;box-shadow:0 24px 100px #0003}dialog::backdrop{background:#19241bb3;backdrop-filter:blur(8px)}.dialog-header{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:24px}.dialog-header .eyebrow{margin-bottom:12px}.drawer{margin:0 0 0 auto;height:100dvh;max-height:100dvh;width:min(540px,100%);border-radius:18px 0 0 18px;padding:36px}.drawer-footer{display:flex;gap:12px;padding-top:28px;border-top:1px solid var(--line);margin-top:28px}.drawer-footer>.button{flex:1}.plan-section-title{font-size:22px;margin:32px 0 16px}.plan-item{display:flex;gap:16px;align-items:center;padding-block:16px;border-bottom:1px solid var(--line)}.plan-item-main{flex:1;min-width:0}.plan-item-main button{text-align:left;font-size:16px;line-height:1.5;padding:8px 0;min-height:44px}.plan-item-main>p{font-size:12px;color:var(--muted)}.plan-item>.icon-button{color:var(--muted)}.plan-empty{padding:48px 0;text-align:center}.plan-empty h3{font-size:28px}.plan-empty p{color:var(--muted);font-size:16px;margin-top:20px}.compare-pickers{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin:28px 0}.compare-pickers label{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--muted)}.compare-pickers select{width:100%}.compare-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.compare-grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.compare-card{border:1px solid var(--line);border-radius:12px;padding:24px;min-width:0}.compare-card h3{font-size:30px;overflow-wrap:anywhere}.compare-card .detail-region{margin-bottom:20px}.compare-card .swatch{margin-bottom:20px;padding:4px 10px;border-radius:6px;height:30px}.compare-card ul{font-size:14px;color:var(--muted);padding-left:16px;line-height:1.85}.compare-card li+li{margin-top:14px}.compare-phrase{background:var(--soft);border-radius:8px;padding:20px;font:italic 22px/1.6 Georgia,serif;margin-block:24px;overflow-wrap:anywhere}.compare-card>.button{width:100%}.compare-warning{grid-column:1/-1;color:var(--muted);font-size:14px;padding:24px;background:var(--soft);border-radius:12px}.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--ink);color:var(--surface);padding:16px 24px;max-width:calc(100% - 32px);border-radius:10px;box-shadow:0 6px 30px #0002;z-index:90;font-size:14px;text-align:center;pointer-events:none}
/* Tablet uses a full-width map and a horizontally arranged notebook. */
@media(min-width:1600px){.atlas-workspace{grid-template-columns:minmax(0,1fr) 420px;height:720px}.state-heading h2{font-size:40px}.detail-scroll{padding-inline:28px}.detail-features li{font-size:15px}}
@media(max-width:1200px){.container{width:calc(100% - 48px)}.header-inner{gap:24px}.navigation{gap:0}.navigation a{padding-inline:12px}.atlas-workspace{grid-template-columns:minmax(0,1fr) 350px;gap:16px;height:680px}.intro-description{max-width:280px}.intro-description p{font-size:13px}.intro-index{font-size:9px;gap:10px}.map-toolbar{padding:16px 16px 0}.view-switch button span{display:none}.map-filters{padding-inline:16px;gap:6px}.legend{padding-inline:16px}.legend-options button{flex-direction:column;gap:4px;font-size:10px}.state-heading h2{font-size:32px}.state-outline{width:50px}.detail-cover{padding-inline:20px}.detail-actions,.detail-tabs,.detail-scroll{padding-inline:20px}.detail-tabs{gap:18px}.detail-tabs button{font-size:13px}.route-card{padding:24px}.route-top .small-label{font-size:9px}.route-card>strong{font-size:24px}.route-states{font-size:10px}.film-grid{gap:20px}.film-tools{flex-wrap:wrap}.film-tools .search-field{flex-basis:40%}.guide-layout{grid-template-columns:180px 1fr;gap:48px}.practice-layout{grid-template-columns:280px 1fr;gap:20px}.practice-panel{padding:28px}.practice-steps li{flex-direction:column;align-items:start;gap:8px}.footer-local{display:none}}
@media(max-width:980px){.header-inner{gap:16px;min-height:76px}.brand{font-size:26px}.brand img{width:30px;height:30px}.navigation a{padding:10px;font-size:13px}.header-actions{gap:4px}.plan-button{padding:8px 12px}.plan-button>svg{display:none}.page-intro{gap:24px}.atlas-intro h1{font-size:58px}.intro-description{max-width:230px}.intro-description p{font-size:12px}.intro-index{flex-wrap:wrap;gap:6px}.atlas-workspace{grid-template-columns:minmax(0,1fr) 330px;height:690px;gap:12px}.search-field{padding-inline:10px;gap:8px}.search-field input{font-size:13px}.map-toolbar{flex-wrap:wrap;gap:8px}.map-toolbar .search-field{flex-basis:100%}.view-switch{margin-left:auto}.view-switch button span{display:inline}.map-filters{flex-wrap:wrap}.map-total{font-size:9px}.map-caption>span:last-child{display:none}.map-canvas{padding-inline:4px}.map-coordinate{font-size:7px;left:18px}.map-ocean{font-size:9px}.legend-heading>span{font-size:10px}.legend-options button{font-size:9px;padding-inline:3px}.legend-options button>span:last-child{display:none}.legend .swatch{width:30px;height:30px}.route-grid{gap:16px}.route-top{flex-wrap:wrap;gap:16px}.route-card{padding:20px}.route-states{line-height:1.8}.route-card>strong{font-size:22px}.film-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.practice-layout{grid-template-columns:240px minmax(0,1fr)}.practice-sidebar{padding:20px}.timer output{font-size:60px}.practice-panel{padding:24px}.practice-steps li{font-size:11px}.practice-nav .button{font-size:12px}.guide-layout{grid-template-columns:150px minmax(0,1fr);gap:32px}.method-steps{grid-template-columns:1fr;gap:0}.method-steps>div{display:grid;grid-template-columns:50px 1fr;gap:12px 20px}.method-steps h3{margin:0}.method-steps p{grid-column:2;margin:0}.glossary>div{grid-template-columns:1fr;gap:12px}.compare-grid.three{grid-template-columns:1fr}}
/* Phones keep primary navigation within thumb reach. The notebook becomes a sheet. */
@media(max-width:760px){.container{width:calc(100% - 32px)}.header-inner{min-height:72px;justify-content:space-between}.header-actions{margin-left:auto}.brand{font-size:27px}.navigation{position:fixed;bottom:0;left:0;right:0;width:100%;z-index:40;margin:0;background:var(--surface);border-top:1px solid var(--line);padding:6px 12px calc(6px + env(safe-area-inset-bottom));display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;box-shadow:0 -8px 24px #252e1c08}.navigation a{flex-direction:column;gap:3px;font-size:10px;padding:6px 2px;min-height:54px;border-radius:8px}.navigation a>svg{display:block;width:20px;height:20px}.navigation a[aria-current="page"]{background:var(--accent-soft)}.navigation a[aria-current="page"]:after{display:none}body{padding-bottom:calc(76px + env(safe-area-inset-bottom))}.view{padding:28px 0 48px}.page-intro{display:block;margin-bottom:28px}.page-intro h1{font-size:46px}.page-intro .eyebrow{font-size:9px;margin-bottom:12px}.page-intro h1+p{font-size:14px;margin-top:16px}.atlas-intro h1{font-size:clamp(42px,9vw,62px)}.intro-description{max-width:none;padding-top:16px;display:flex;align-items:center;justify-content:space-between;gap:24px}.intro-description p{font-size:13px}.intro-description p br{display:none}.intro-index{font-size:9px;flex:none;margin:0;display:block;max-width:105px;line-height:1.8}.intro-index i{display:none}.atlas-workspace{height:auto;display:flex;flex-direction:column;gap:16px}.map-column{height:500px;flex:none}.map-toolbar{flex-wrap:nowrap;padding:14px 14px 0}.map-toolbar .search-field{flex-basis:auto}.search-field input{font-size:16px}.view-switch button span{display:none}.view-switch button{padding:6px;min-width:44px}.map-filters{padding:6px 14px 0;flex-wrap:nowrap}.map-filters select{font-size:13px}.map-total{font-size:10px}.map-canvas{padding:20px 4px 0}.map-coordinate{font-size:8px}.map-ocean{font-size:10px}.map-caption{font-size:9px;padding-inline:12px}.legend{padding:4px 14px 12px}.legend-heading>span{font-size:12px}.legend-options button{flex-direction:row;padding:5px;justify-content:center;min-height:44px}.legend-options button>span:last-child{display:none}.legend .swatch{width:32px;height:32px}.legend-heading .text-button{font-size:12px}.state-detail{border-radius:16px;scroll-margin-top:16px}.detail-cover{padding:12px 24px 0}.detail-top .eyebrow{font-size:10px}.state-heading{min-height:70px;margin-top:4px}.state-heading h2{font-size:38px}.state-outline{width:70px;height:60px}.state-en{font-size:12px}.detail-region{font-size:14px}.detail-level{font-size:12px}.detail-actions{padding:20px 24px 4px}.detail-audio{font-size:14px}.detail-compare{font-size:14px}.detail-tabs{padding-inline:24px;gap:28px}.detail-tabs button{font-size:14px}.detail-scroll{padding:0 24px 24px;max-height:370px;overscroll-behavior:auto}.detail-features li{font-size:15px}.detail-footnote{font-size:11px}.atlas-note{font-size:11px;margin-top:16px}.state-list{grid-template-columns:repeat(2,minmax(0,1fr));padding:16px}.routes-section{margin-top:40px}.section-heading h2{font-size:32px}.section-heading .eyebrow{font-size:9px}.route-grid{grid-template-columns:1fr}.route-card{padding:24px}.route-top{flex-wrap:nowrap;margin-bottom:20px}.route-symbol{font-size:44px}.route-card>strong{font-size:28px}.route-top .small-label{font-size:10px}.route-states{font-size:12px;margin-top:20px}.route-link{margin-top:20px}.intro-counter,.practice-total{display:block;margin-top:20px}.film-tools{padding:12px;gap:10px}.film-tools .search-field{flex-basis:100%}.film-tools .select-label{flex:1;min-width:130px}.film-tools select{width:100%;font-size:14px}.film-tools+.content-note{font-size:12px}.film-grid{gap:16px;margin-top:24px}.film-card h2{font-size:24px}.film-body{padding:20px}.film-art{min-height:160px;padding:20px}.film-location{font-size:56px}.film-art>svg{right:20px;width:90px;height:90px}.film-location small{font-size:9px}.film-format{font-size:9px;left:20px}.film-actions{gap:8px}.film-actions .button{font-size:13px;padding-inline:12px}.practice-layout{grid-template-columns:1fr}.practice-sidebar{padding:24px;display:grid;grid-template-columns:1fr 1fr;gap:12px 16px}.practice-sidebar>.eyebrow{grid-column:1/-1}.practice-sidebar>label{margin:8px 0 0}.practice-sidebar>label[for="practice-state"]{grid-column:1;grid-row:2}.practice-sidebar>label[for="practice-source"]{grid-column:2;grid-row:2}.practice-sidebar>select{grid-row:3;min-width:0;font-size:16px}.practice-sidebar>.content-note{grid-column:1/-1;margin:4px 0}.practice-sidebar>.button{grid-column:1/-1}.timer{grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr;gap:0 16px;margin-top:8px}.timer-label{grid-column:1/-1}.timer output{font-size:56px;margin:0;align-self:center}.timer>.button{align-self:center;font-size:13px}.local-note{grid-column:1/-1;margin-top:8px;font-size:12px}.practice-panel{padding:24px}.practice-steps li{flex-direction:row;font-size:12px}.practice-steps{gap:12px;margin-bottom:24px;padding-bottom:24px}#practice-task>h2{font-size:30px}.practice-nav .button{font-size:14px}.history-section{margin-top:40px}.history-card summary{display:block}.history-card summary>span{display:block;margin-top:12px}.guide-layout{grid-template-columns:1fr;gap:28px;padding:0}.guide-nav{position:static;display:flex;flex-wrap:wrap;gap:8px}.guide-nav a{border-left:0;border-bottom:1px solid var(--line);font-size:12px;padding:10px;min-height:44px}.guide-content h2{font-size:32px}.method-steps p{font-size:16px}.method-steps>div>span{font-size:40px}.source-links a{padding:24px}.site-footer{flex-wrap:wrap;gap:12px;font-size:11px}.site-footer>span:first-of-type{display:none}.site-footer>a:not(.brand){margin-left:auto}.compare-pickers{grid-template-columns:1fr;gap:16px}.compare-pickers label{display:grid;grid-template-columns:105px 1fr;align-items:center}.compare-grid{grid-template-columns:1fr}.compare-card{padding:24px}.compare-card h3{font-size:30px}dialog{padding:24px;width:calc(100% - 24px);max-height:calc(100dvh - 24px)}.drawer{width:min(540px,100%);padding:24px;max-height:100dvh}.dialog-header h2{font-size:30px}.toast{bottom:calc(86px + env(safe-area-inset-bottom));font-size:13px}}
@media(max-width:480px){.brand{font-size:26px}.brand img{width:30px;height:30px}.header-actions{gap:2px}.plan-button{font-size:12px;padding:8px 10px;gap:7px}.theme-toggle{min-width:44px}.page-intro h1{font-size:40px}.atlas-intro h1{font-size:clamp(37px,10vw,48px)}.intro-description{padding-top:12px}.intro-description p{font-size:12px}.intro-index{display:none}.page-intro .eyebrow{font-size:8px;letter-spacing:.06em}.map-column{height:438px}.map-toolbar{gap:8px;padding:12px 12px 0}.view-switch{gap:0;padding:2px}.view-switch button{min-width:36px}.search-field{gap:6px;padding-inline:10px}.search-field input{font-size:16px}.search-field svg{width:16px}.search-field kbd{display:none}.map-filters{gap:6px}.map-total{font-size:9px}.map-filters select{font-size:12px;max-width:160px}.subtle-button{font-size:11px}.map-coordinate{font-size:7px;left:18px}.map-ocean{font-size:8px}.legend-heading>span{font-size:11px}.legend-heading .text-button{font-size:11px}.detail-cover{padding-inline:20px}.state-heading h2{font-size:34px}.state-outline{width:60px}.detail-actions,.detail-tabs,.detail-scroll{padding-inline:20px}.detail-scroll{max-height:350px}.detail-tabs{gap:24px}.state-list{grid-template-columns:1fr}.section-heading{gap:16px}.section-heading .text-button{display:none}.section-heading h2{font-size:30px}.film-grid{grid-template-columns:1fr}.film-art{min-height:174px;padding:24px}.film-art>svg{right:42px;width:110px;height:110px}.film-location{font-size:66px}.film-location small{font-size:11px}.film-format{left:24px;font-size:10px}.film-body{padding:24px}.film-card h2{font-size:28px}.film-actions .button{font-size:14px}.practice-sidebar{padding:20px;grid-template-columns:1fr}.practice-sidebar>label[for="practice-state"],.practice-sidebar>label[for="practice-source"]{grid-column:auto;grid-row:auto}.practice-sidebar>select{grid-row:auto}.practice-panel{padding:20px}.practice-steps li{flex-direction:column;align-items:start;font-size:11px}.practice-steps li>span{width:32px;height:32px}.practice-nav{gap:10px}.practice-nav .button{font-size:12px;padding-inline:12px}.practice-nav .primary{flex:1}textarea{padding:16px}.history-card summary{padding:20px}.history-card summary>span{font-size:11px}.method-steps>div{grid-template-columns:38px 1fr;gap:12px}.guide-nav{gap:4px}.guide-nav a{font-size:11px;padding-inline:8px}.drawer-footer{flex-direction:column}.compare-pickers label{grid-template-columns:90px 1fr;font-size:12px}.compare-pickers select{font-size:16px}.dialog-header h2{font-size:28px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}.route-card:hover,.film-card:hover{transform:none}}
.header-inner>*,.page-intro>*,.film-tools>*,.practice-layout>*,.guide-layout>*{min-width:0}.plan-item-main,.history-card,.film-states,.phrase-card blockquote{overflow-wrap:anywhere}