/* Vértice — design system. Mobile first; identidade azul-marinho e latão das apostilas. */
:root{
  --font:'Manrope',ui-sans-serif,-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,'SF Mono',Menlo,Consolas,monospace;
  --r-lg:20px;--r-md:14px;--r-sm:10px;
  --safe-b:env(safe-area-inset-bottom,0px);--safe-t:env(safe-area-inset-top,0px);
  --tab-h:64px;--ease:cubic-bezier(.2,.8,.2,1);
}
:root,[data-theme=dark]{
  color-scheme:dark;
  --bg:#070d19;--bg-glow:#13284a;
  --surface:#0e182b;--surface-2:#13203a;--surface-3:#1a2a48;--sunken:#0a1222;
  --line:#1f2e4a;--line-2:#2b3d5e;
  --text:#eef2f9;--text-2:#a8b5cc;--text-3:#73839f;
  --gold:#d6b25e;--gold-2:#f1d68f;--gold-ink:#171103;--gold-soft:#d6b25e1f;
  --ok:#5fcf98;--ok-soft:#5fcf981c;--warn:#efb54f;--bad:#f2806f;--bad-soft:#f2806f1c;
  --shadow:0 1px 0 #ffffff08 inset,0 18px 50px -24px #000c;
  --map-bg:#0a1324;--map-grid:#16243e;--map-point:#d6b25e;--map-label:#c4cfe3;--map-contour:#7f9cc9;--map-contour-index:#c5d6f2;
  --map-tin:#6c86b2;--map-boundary:#f1d68f;--map-cad:#5f7fa1;--map-select:#ffffff;
}
[data-theme=light]{
  color-scheme:light;
  --bg:#f3f1ea;--bg-glow:#e7dfc8;
  --surface:#ffffff;--surface-2:#f7f5ef;--surface-3:#ece8dc;--sunken:#f1eee6;
  --line:#e2ddcf;--line-2:#cfc8b4;
  --text:#0d1a30;--text-2:#46536a;--text-3:#6f7a8c;
  --gold:#9a7420;--gold-2:#7b5c14;--gold-ink:#ffffff;--gold-soft:#9a742016;
  --ok:#14804f;--ok-soft:#14804f14;--warn:#a5660a;--bad:#b83a28;--bad-soft:#b83a2812;
  --shadow:0 1px 2px #1a24380d,0 14px 40px -26px #1a243840;
  --map-bg:#fbfaf6;--map-grid:#ebe6d8;--map-point:#0d1a30;--map-label:#2b3a55;--map-contour:#8a6d2f;--map-contour-index:#5a420f;
  --map-tin:#9aa7bd;--map-boundary:#b8402a;--map-cad:#4c6c95;--map-select:#c77d00;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{margin:0;font-family:var(--font);color:var(--text);background:var(--bg);font-size:15px;line-height:1.5;font-feature-settings:'tnum' 1,'ss01' 1;-webkit-font-smoothing:antialiased;min-height:100dvh}
body:before{content:'';position:fixed;inset:-20vh -20vw auto;height:70vh;background:radial-gradient(ellipse at 80% 0%,var(--bg-glow),transparent 60%);opacity:.55;pointer-events:none;z-index:-1}
button,input,textarea,select{font:inherit;color:inherit}
button,a,input,select,textarea,summary,label{-webkit-tap-highlight-color:transparent}
h1,h2,h3,p{margin:0}
svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex:none}
.mono{font-family:var(--mono);font-size:.92em;font-feature-settings:'zero' 0}
.eyebrow,.small-muted{font-size:10.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--gold)}
.small-muted{color:var(--text-3);letter-spacing:.06em}
[hidden]{display:none!important}

/* Botões */
button{cursor:pointer;border:1px solid transparent;border-radius:var(--r-sm);background:var(--surface-3);color:var(--text);min-height:44px;padding:10px 16px;font-size:14px;font-weight:650;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:transform .15s var(--ease),background .15s,border-color .15s,box-shadow .2s}
button:active{transform:scale(.97)}
button:disabled{opacity:.5;cursor:wait}
button:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--gold-2);outline-offset:3px}
button.primary{background:linear-gradient(180deg,var(--gold-2),var(--gold));color:var(--gold-ink);box-shadow:0 8px 22px -12px var(--gold),0 1px 0 #ffffff55 inset}
[data-theme=light] button.primary{background:linear-gradient(180deg,#1d2f52,#0d1a30);color:#fff;box-shadow:0 10px 22px -14px #0d1a30}
.secondary{background:transparent;border-color:var(--line-2);color:var(--text)}
.secondary:hover{background:var(--surface-2)}
.danger{background:var(--bad-soft);color:var(--bad)}
.text-button{background:transparent;color:var(--gold);min-height:36px;padding:6px 10px;font-size:13px}
.wide{width:100%;justify-content:space-between}
.icon-button{display:inline-grid;place-items:center;width:44px;height:44px;border-radius:12px;color:var(--text-2);border:1px solid var(--line);text-decoration:none;background:var(--surface)}
.icon-button svg{width:21px;height:21px}

/* Campos */
label{display:block;font-size:12.5px;font-weight:600;color:var(--text-2);margin-bottom:14px}
input:not([type=checkbox]):not([type=radio]),textarea,select{display:block;width:100%;min-width:0;margin-top:7px;padding:12px 13px;font-size:16px;border-radius:var(--r-sm);border:1px solid var(--line-2);background:var(--sunken);color:var(--text);transition:border-color .15s,box-shadow .15s;-webkit-appearance:none;appearance:none}
select{background-image:linear-gradient(45deg,transparent 50%,var(--text-3) 50%),linear-gradient(135deg,var(--text-3) 50%,transparent 50%);background-position:calc(100% - 18px) 55%,calc(100% - 13px) 55%;background-size:5px 5px;background-repeat:no-repeat;padding-right:34px}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px var(--gold-soft)}
input::placeholder,textarea::placeholder{color:var(--text-3)}
textarea{resize:vertical;min-height:110px;line-height:1.6}
input[type=checkbox]{width:20px;height:20px;accent-color:var(--gold);margin:0;flex:none}
.checkbox-label{display:flex;gap:12px;align-items:center;font-weight:600;color:var(--text);font-size:13.5px;margin:4px 0 16px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 12px}
.form-grid>label{min-width:0}
.hint{font-size:12.5px;color:var(--text-3);line-height:1.6;margin:10px 0 16px}
.lead{color:var(--text-2);font-size:14px;margin:-6px 0 18px}

/* Navegação: barra inferior no celular */
.rail{position:fixed;z-index:30;left:0;right:0;bottom:0;padding:6px 8px calc(6px + var(--safe-b));background:color-mix(in srgb,var(--surface) 82%,transparent);backdrop-filter:blur(18px) saturate(1.4);-webkit-backdrop-filter:blur(18px) saturate(1.4);border-top:1px solid var(--line)}
.brand,.rail-bottom{display:none}
.rail nav{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:2px}
.rail nav button{flex-direction:column;gap:3px;min-height:var(--tab-h);padding:6px 2px;background:transparent;border:0;color:var(--text-3);font-weight:650;border-radius:14px}
.rail nav button em{font-style:normal;font-size:10.5px;letter-spacing:.01em}
.rail nav button svg{width:23px;height:23px;padding:3px 13px;box-sizing:content-box;border-radius:999px;transition:background .2s var(--ease),color .2s}
.rail nav button.active{color:var(--text)}
.rail nav button.active svg{background:var(--gold-soft);color:var(--gold-2)}
[data-theme=light] .rail nav button.active svg{color:var(--gold)}

main{padding:0 16px calc(var(--tab-h) + 40px + var(--safe-b));max-width:1500px;margin:0 auto}
.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:12px;margin:0 -16px 14px;padding:calc(10px + var(--safe-t)) 16px 10px;background:color-mix(in srgb,var(--bg) 78%,transparent);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.topbar-title{flex:1;min-width:0}
.topbar .eyebrow{font-size:9.5px}
.topbar h1{font-size:17px;font-weight:750;letter-spacing:-.02em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:2px}
.topbar p{font-size:11.5px;color:var(--text-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-actions{display:flex;gap:8px;align-items:center}
.topbar-actions .primary{padding:10px 14px}

.page{display:none;animation:rise .35s var(--ease)}
.page.active{display:block}
@keyframes rise{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:12px;margin:8px 0 18px}
.section-heading h2{font-size:30px;font-weight:800;letter-spacing:-.035em;line-height:1.05;margin-top:6px}
.section-heading>button{flex:none}

/* Superfícies */
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:18px;box-shadow:var(--shadow);min-width:0}
.panel h3{font-size:16px;font-weight:750;letter-spacing:-.01em;margin-bottom:14px}
.panel>p{color:var(--text-2);font-size:14px;margin-bottom:10px}
.pill{display:inline-flex;align-items:center;font-size:9.5px;font-weight:800;letter-spacing:.12em;padding:4px 8px;border-radius:999px;color:var(--gold);background:var(--gold-soft);border:1px solid color-mix(in srgb,var(--gold) 30%,transparent)}
.stack{display:grid;gap:10px}
.notice{position:relative;margin:0 0 14px;padding:13px 15px;border-radius:var(--r-md);border:1px solid color-mix(in srgb,var(--gold) 35%,transparent);background:var(--gold-soft);color:var(--text);font-size:13.5px;line-height:1.55;white-space:pre-line;animation:rise .3s var(--ease)}
.notice.error{border-color:color-mix(in srgb,var(--bad) 40%,transparent);background:var(--bad-soft)}
.notice-close{position:absolute;top:4px;right:4px;min-height:36px;width:36px;padding:0;background:transparent;color:var(--text-3);font-size:20px}
.notice:has(.notice-close){padding-right:42px}

/* Mapa */
.map-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow);margin:0 -4px}
.map-header{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 12px 10px 14px;border-bottom:1px solid var(--line)}
.map-heading{display:flex;align-items:center;gap:8px;min-width:0}
.map-heading strong{font-size:13.5px;font-weight:700;white-space:nowrap}
.live-dot,.status-dot{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px var(--ok-soft);display:inline-block;flex:none}
.segmented{display:inline-flex;padding:3px;border-radius:12px;background:var(--sunken);border:1px solid var(--line)}
.segmented button,.segmented label span{min-height:32px;padding:5px 14px;border-radius:9px;background:transparent;border:0;color:var(--text-3);font-size:12.5px;font-weight:700}
.segmented button.active,.segmented input:checked+span{background:var(--surface-3);color:var(--text);box-shadow:0 1px 3px #0003}
.segmented label{margin:0;display:block;flex:1}
.segmented label input{position:absolute;opacity:0;pointer-events:none}
.segmented label span{display:flex;align-items:center;justify-content:center;cursor:pointer;text-align:center}
.wide-seg{display:flex;width:100%;margin-bottom:16px}
.canvas-wrap{position:relative;height:min(58dvh,520px);min-height:340px;background:var(--map-bg);overflow:hidden}
.canvas-wrap canvas{width:100%;height:100%;display:block;touch-action:none}
.map-tools{position:absolute;right:12px;top:50%;transform:translateY(-50%);display:grid;border-radius:14px;overflow:hidden;border:1px solid var(--line-2);background:color-mix(in srgb,var(--surface) 85%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:0 10px 30px -12px #000a}
.map-tools button{width:46px;height:46px;min-height:46px;padding:0;border-radius:0;background:transparent;color:var(--text)}
.map-tools button+button{border-top:1px solid var(--line)}
.north{position:absolute;top:12px;right:16px;display:grid;justify-items:center;color:var(--gold-2);pointer-events:none}
[data-theme=light] .north{color:var(--gold)}
.north svg{width:16px;height:24px;fill:currentColor;stroke:none}
.north b{font-size:10px;font-weight:800;letter-spacing:.1em;margin-top:2px}
.map-foot{position:absolute;left:10px;right:70px;bottom:10px;display:flex;flex-wrap:wrap;gap:6px;pointer-events:none}
.map-foot span{font-size:11px;font-weight:600;color:var(--text-2);background:color-mix(in srgb,var(--surface) 82%,transparent);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);padding:5px 9px;border-radius:999px;border:1px solid var(--line)}
.map-foot #scale-label{font-family:var(--mono);color:var(--text)}
.map-foot #scale-label:empty{display:none}
.map-empty{position:absolute;inset:0;display:grid;place-content:center;justify-items:center;gap:14px;text-align:center;color:var(--text-2);padding:20px}
.selection-bar{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:8px 8px 8px 14px;font-size:13px;color:var(--text-2);min-height:52px;border-top:1px solid var(--line)}
.selection-bar span{overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}

.metrics{display:flex;gap:10px;overflow-x:auto;scroll-snap-type:x mandatory;margin:14px -16px;padding:0 16px 4px;scrollbar-width:none}
.metrics::-webkit-scrollbar{display:none}
.metrics article{flex:0 0 46%;scroll-snap-align:start;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:13px 14px}
.metrics article>span{display:block;font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--text-3)}
.metrics strong{display:block;font-size:25px;font-weight:750;letter-spacing:-.03em;margin-top:4px;color:var(--text)}
.metrics small{display:block;font-size:11.5px;color:var(--text-3)}
.inspector{display:grid;gap:12px}
.selection-panel #measurement{white-space:pre-line;color:var(--text);line-height:1.75;font-size:13.5px;margin-bottom:14px}
.layer{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:0;padding:12px 0;border-top:1px solid var(--line);font-size:14px;color:var(--text);font-weight:600}
.layer span{display:flex;align-items:center;gap:10px;min-width:0}
.layer i{width:10px;height:10px;border-radius:3px;flex:none}
#cad-layers:empty{display:none}
#cad-layers .layer{font-size:12.5px;padding:9px 0 9px 20px}
.cad-layer-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.altitude{margin-top:16px}
.altitude>span{font-size:10px;font-weight:800;letter-spacing:.14em;color:var(--text-3)}
.altitude>div{height:6px;border-radius:99px;margin:8px 0;background:linear-gradient(90deg,#2f5f9e,#3f8f8a,#a8b062,#d6b25e,#d9784d)}
.altitude small{display:flex;justify-content:space-between;font-family:var(--mono);font-size:11.5px;color:var(--text-2)}

/* Acordeões */
details.panel{padding:0}
details.panel>summary{list-style:none;display:flex;align-items:center;gap:12px;padding:16px 18px;cursor:pointer;min-height:64px}
details.panel>summary::-webkit-details-marker{display:none}
details.panel>summary>span:first-child{display:flex;align-items:center;gap:10px;font-weight:750;font-size:15px}
details.panel>summary .chev{margin-left:auto;color:var(--text-3);transition:transform .25s var(--ease)}
details[open]>summary .chev{transform:rotate(180deg)}
details.panel>:not(summary){padding:0 18px}
details.panel>form,details.panel>label:last-of-type,details.panel>div:last-child{padding-bottom:18px}
.layers-panel>summary svg:not(.chev){color:var(--gold)}
.layers-panel .layer{margin:0 18px;padding-left:0;padding-right:0}
.layers-panel #cad-layers{padding:0}
.tools{display:grid;gap:12px}
.tool .card-number{display:grid;place-items:center;flex:none;width:36px;height:36px;border-radius:11px;background:var(--gold-soft);color:var(--gold-2);font-family:var(--mono);font-size:12.5px;font-weight:500;letter-spacing:0}
[data-theme=light] .tool .card-number{color:var(--gold)}
.tool-title{display:grid!important;gap:2px!important;min-width:0}
.tool-title b{font-size:15.5px;font-weight:750;letter-spacing:-.01em}
.tool-title small{font-size:12px;color:var(--text-3);font-weight:550;line-height:1.4}
.tool[open]{border-color:var(--line-2)}
.tool form{padding-top:2px}
.card-number{font-family:var(--mono);font-size:11px;color:var(--gold);letter-spacing:.08em;display:block;margin-bottom:10px}

/* Resultados */
.result,.result-block{margin-top:16px;border-radius:var(--r-md);background:var(--sunken);border:1px solid var(--line);padding:14px;font-size:13px;line-height:1.7;color:var(--text);white-space:pre-wrap;overflow-wrap:anywhere}
.result-block{white-space:normal;padding:0;overflow:hidden}
.result-block .kpis{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line)}
.result-block .kpi{background:var(--sunken);padding:12px 14px;min-width:0}
.result-block .kpi span{display:block;font-size:10.5px;font-weight:750;letter-spacing:.08em;text-transform:uppercase;color:var(--text-3)}
.result-block .kpi strong{display:block;font-family:var(--mono);font-size:15px;font-weight:500;margin-top:3px;overflow-wrap:anywhere}
.result-block .kpi small{display:block;font-size:11.5px;color:var(--text-3)}
.badge{display:inline-flex;align-items:center;gap:5px;font-family:var(--font);font-size:11px;font-weight:800;padding:2px 8px;border-radius:999px;margin-top:5px}
.badge.ok{background:var(--ok-soft);color:var(--ok)}.badge.bad{background:var(--bad-soft);color:var(--bad)}.badge.neutral{background:var(--surface-3);color:var(--text-2)}
.result-block h4{margin:0;padding:14px 14px 6px;font-size:11px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--gold)}
.result-block .steps{margin:0;padding:0 14px 6px 34px;color:var(--text-2);font-size:13px;line-height:1.65}
.result-block .steps li{margin-bottom:6px}.result-block .steps b{color:var(--text);font-weight:700}
.result-block .table-scroll{margin:0;padding:0 0 4px}
.result-block table{font-family:var(--mono);font-size:12px}
.result-block th{font-family:var(--font)}
.result-block p{padding:0 14px 14px;color:var(--text-3);font-size:12px;margin:0}

/* Tabelas */
.table-toolbar{display:flex;flex-wrap:wrap;align-items:flex-end;gap:10px}
.table-toolbar .search-label{flex:1 1 100%;margin:0}
.table-toolbar .small-muted{flex:1}
.table-scroll{overflow:auto;margin:12px -18px;-webkit-overflow-scrolling:touch}
table{border-collapse:collapse;width:100%;font-size:13px;white-space:nowrap;text-align:left;font-feature-settings:'tnum' 1}
th{position:sticky;top:0;background:var(--surface-2);font-size:10.5px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--text-3)}
th,td{padding:12px 10px;border-bottom:1px solid var(--line)}
th:first-child,td:first-child{padding-left:18px}th:last-child,td:last-child{padding-right:18px}
td{font-family:var(--mono);font-size:12.5px}
td:nth-child(2){font-family:var(--font);font-weight:700;font-size:13.5px}
tr.selected td{background:var(--gold-soft)}
td button{min-height:34px;padding:4px 12px;font-size:12.5px;font-family:var(--font);background:transparent;border:1px solid var(--line-2)}
.pagination{display:flex;gap:10px}.pagination:empty{display:none}
#import-preview td{font-size:11.5px}

/* Arquivos */
.file-grid,.calculation-grid{display:grid;gap:12px}
.import-card{text-align:left}
.big-icon{display:inline-grid;place-items:center;width:56px;height:56px;border-radius:18px;background:var(--gold-soft);color:var(--gold-2);margin-bottom:14px}
[data-theme=light] .big-icon{color:var(--gold)}
.big-icon svg{width:26px;height:26px}
.formats{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px}
.formats span{font-family:var(--mono);font-size:11px;padding:4px 9px;border-radius:999px;border:1px solid var(--line-2);color:var(--text-2)}
.export-list{display:grid}
.export-list button{justify-content:space-between;text-align:left;background:transparent;border:0;border-top:1px solid var(--line);border-radius:0;padding:15px 2px;min-height:64px}
.export-list button:first-child{border-top:0}
.export-list b{display:block;font-size:14.5px;font-weight:700}
.export-list small{display:block;font-size:12.5px;color:var(--text-3);font-weight:550;margin-top:2px}
.export-list svg{color:var(--gold)}

/* Caderneta (survey-ui) */
.survey-calculations{margin:12px 0}
#survey-plan{min-height:170px;font-family:var(--mono);font-size:14px}
#survey-result-summary{white-space:pre-wrap;overflow-wrap:anywhere}
#survey-warnings{line-height:1.7}
#survey .panel{margin-bottom:12px}
#survey .section-heading{flex-wrap:wrap;align-items:flex-start}#survey .section-heading h2{font-size:26px}
#survey .section-heading>button{width:100%}
#survey .panel h3:not(:first-child){margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}
#survey .calculation-grid .panel{margin-bottom:0}
.tol-helper{display:grid;grid-template-columns:1fr;gap:8px;margin-bottom:12px}
.tol-buttons{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.tol-buttons button{min-height:40px;font-size:12.5px;padding:8px}

/* Diálogos e ocupado */
dialog{border:1px solid var(--line-2);border-radius:24px 24px 0 0;padding:22px 18px calc(22px + var(--safe-b));width:100%;max-width:640px;max-height:92dvh;overflow:auto;margin:auto auto 0;background:var(--surface);color:var(--text);box-shadow:0 -30px 80px #0008}
dialog[open]{animation:sheet .3s var(--ease)}
@keyframes sheet{from{transform:translateY(30px);opacity:0}to{transform:none;opacity:1}}
dialog::backdrop{background:#02060ecc;backdrop-filter:blur(4px)}
dialog h2{font-size:22px;font-weight:800;letter-spacing:-.02em;margin:6px 40px 16px 0}
.dialog-close{position:absolute;right:12px;top:12px;width:40px;min-height:40px;padding:0;font-size:22px;background:var(--surface-3);border-radius:12px}
.busy{position:fixed;inset:0;z-index:100;display:grid;place-items:center;background:#02060ecc;backdrop-filter:blur(6px)}
.busy>div{background:var(--surface);border:1px solid var(--line-2);border-radius:var(--r-lg);padding:28px 36px;text-align:center}
.busy h3{margin:14px 0 4px}.busy p{color:var(--text-3);font-size:13px}
.spinner{display:inline-block;width:34px;height:34px;border-radius:50%;border:3px solid var(--line-2);border-top-color:var(--gold);animation:spin .9s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

footer{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;margin:28px 0 0;padding-top:16px;border-top:1px solid var(--line);font-size:11.5px;color:var(--text-3)}
footer span:first-child{font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--gold)}

@media (max-width:340px){
  .form-grid{grid-template-columns:1fr}
  .rail nav button svg{padding:3px 9px}
  .rail nav button em{font-size:9.5px}
  .section-heading h2{font-size:26px}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* Tablet e desktop */
@media (min-width:760px){
  main{padding:0 28px 48px}
  .topbar{margin:0 -28px 20px;padding:16px 28px}
  .metrics{display:grid;grid-template-columns:repeat(4,1fr);overflow:visible;margin:16px 0;padding:0}
  .metrics article{flex:auto}
  .inspector{grid-template-columns:repeat(2,minmax(0,1fr))}
  .file-grid,.calculation-grid{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start}
  .table-toolbar .search-label{flex:1 1 auto}
  .map-card{margin:0}
  dialog{border-radius:24px;margin:auto;padding:28px}
  .tol-helper{grid-template-columns:1fr 1fr;align-items:end}
  .tol-buttons{margin-bottom:14px}
  #survey .section-heading>button{width:auto}#survey .section-heading{align-items:flex-end}
}
@media (min-width:1024px){
  .rail{top:0;right:auto;width:236px;padding:26px 16px;display:flex;flex-direction:column;border-top:0;border-right:1px solid var(--line);background:var(--surface)}
  .brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--text);padding:0 8px 26px}
  .brand .mark{width:38px;height:38px;color:var(--gold)}
  .wordmark b{display:block;font-size:22px;font-weight:800;letter-spacing:-.03em;line-height:1}
  .wordmark small{display:block;font-size:8.5px;font-weight:800;letter-spacing:.2em;color:var(--text-3);margin-top:5px}
  .rail nav{grid-auto-flow:row;gap:4px}
  .rail nav button{flex-direction:row;justify-content:flex-start;gap:12px;min-height:46px;padding:8px 12px;border-radius:12px;color:var(--text-2)}
  .rail nav button svg{padding:0;width:21px;height:21px;background:transparent!important}
  .rail nav button em{font-size:14px}
  .rail nav button:hover{background:var(--surface-2)}
  .rail nav button.active{background:var(--gold-soft);color:var(--text)}
  .rail nav button.active svg{color:var(--gold)}
  .rail-bottom{display:block;margin-top:auto;font-size:12px;color:var(--text-3);padding:0 8px}
  .rail-bottom .status-dot{margin-right:8px}
  .rail-bottom small{display:block;margin-top:6px;font-size:11px}
  main{margin-left:236px;padding:0 36px 48px}
  .topbar{margin:0 -36px 22px;padding:18px 36px}
  .topbar h1{font-size:20px}
  #terrain.active{display:grid;grid-template-columns:minmax(0,1fr) 320px;grid-template-areas:'map side' 'metrics side';gap:0 20px;align-items:start}
  #terrain .map-card{grid-area:map}#terrain .metrics{grid-area:metrics}#terrain .inspector{grid-area:side;grid-template-columns:1fr}
  .canvas-wrap{height:min(68dvh,720px)}
  .tools{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start}
}
@media (min-width:1500px){.tools{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media print{.rail,.topbar,footer{display:none}main{margin:0}}