:root {
  color-scheme: light;
  --paper: #f4efe6;
  --paper-deep: #e9e0d2;
  --ink: #211c17;
  --muted: #625a52;
  --rule: #c9bdaa;
  --oxide: #a9442a;
  --leaf: #596747;
  --ochre: #b37a24;
  --view: #25231f;
  --white: #fffdf8;
  --sans: "Manrope", "Segoe UI", Arial, sans-serif;
  --serif: "EB Garamond", Georgia, "Times New Roman", serif;
  --mono: "DM Mono", Consolas, "Courier New", monospace;
  --ease: cubic-bezier(.22, .61, .36, 1);
  --gutter: clamp(20px, 5vw, 76px);
}
* { box-sizing: border-box; }
html { min-width: 320px; background: var(--paper); scroll-behavior: smooth; scroll-padding-top: 74px; }
body { min-width: 320px; margin: 0; overflow-x: clip; background: var(--paper); color: var(--ink); font: 15px/1.6 var(--sans); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
button, input, select { font: inherit; }
button, a, input { touch-action: manipulation; }
button { color: inherit; cursor: pointer; }
button:disabled { cursor: wait; opacity: .52; }
a { color: inherit; text-decoration: none; }
img, canvas { display: block; max-width: 100%; }
h1, h2, h3, p, figure { margin: 0; }
:focus-visible { outline: 3px solid var(--oxide); outline-offset: 3px; }
::selection { background: var(--oxide); color: var(--paper); }
.skip-link { position: fixed; z-index: 100; top: 8px; left: 16px; padding: 12px 16px; transform: translateY(-150%); background: var(--ink); color: var(--paper); }
.skip-link:focus { transform: translateY(0); }

.site-nav { position: sticky; z-index: 20; top: 0; border-bottom: 1px solid var(--rule); background: rgba(244,239,230,.94); backdrop-filter: blur(12px); }
.nav-inner { display: flex; max-width: 1680px; min-height: 62px; align-items: center; justify-content: space-between; gap: 18px; margin: 0 auto; padding: 0 var(--gutter); }
.wordmark, .nav-back { display: inline-flex; min-height: 44px; align-items: center; font: 11px/1.2 var(--mono); }
.wordmark { letter-spacing: .08em; text-transform: uppercase; }
.wordmark span { color: var(--oxide); }
.nav-back { color: var(--muted); }
.nav-back:hover { color: var(--oxide); }

main { max-width: 1680px; margin: 0 auto; padding: 0 var(--gutter) 68px; }
.opening { display: grid; grid-template-columns: minmax(0,1.3fr) minmax(250px,.7fr); align-items: end; gap: clamp(32px,7vw,112px); padding: clamp(38px,6vw,82px) 0 clamp(30px,4vw,54px); }
.kicker, .section-label { display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px 22px; color: var(--oxide); font: 10px/1.5 var(--mono); letter-spacing: .07em; text-transform: uppercase; }
.kicker span { color: var(--muted); }
.opening h1 { max-width: 18ch; margin-top: 15px; font: 400 clamp(48px,7vw,96px)/.84 var(--serif); letter-spacing: -.055em; text-wrap: balance; }
.opening-copy { max-width: 42ch; padding-bottom: 3px; color: var(--muted); font-size: 14px; line-height: 1.65; }
.opening-copy strong { display: block; margin-bottom: 9px; color: var(--ink); font: 500 23px/1.08 var(--serif); letter-spacing: -.02em; }
.study-link { min-height: 42px; margin-top: 12px; }
.study-link span { color: #efc987; }
.opening-note { margin-top: 18px; padding-top: 11px; border-top: 1px solid var(--rule); color: var(--oxide); font: 10px/1.5 var(--mono); letter-spacing: .04em; text-transform: uppercase; }
.context-preload-status { min-height: 1.4em; margin: 7px 0 0; color: var(--muted); font: 9px/1.4 var(--mono); }

.analysis-tabs { display: flex; gap: clamp(20px,4vw,52px); margin: 0 0 22px; border-bottom: 1px solid var(--rule); }
.analysis-tab { position: relative; min-height: 49px; padding: 0 1px; border: 0; background: transparent; color: var(--muted); font: 500 14px/1.3 var(--sans); }
.analysis-tab::after { position: absolute; right: 0; bottom: -1px; left: 0; height: 2px; background: var(--oxide); content: ""; transform: scaleX(0); transform-origin: left; transition: transform 220ms var(--ease); }
.analysis-tab.active { color: var(--ink); }
.analysis-tab.active::after { transform: scaleX(1); }
.analysis-tab:focus-visible { outline-offset: -2px; }
.radiation-controls[hidden], .wind-controls[hidden] { display: none; }

.workspace { display: grid; grid-template-columns: minmax(0,1.45fr) minmax(320px,.7fr); align-items: start; gap: clamp(28px,4vw,62px); }
.viewport-column { position: sticky; top: 82px; min-width: 0; }
.viewport-heading { display: flex; min-height: 43px; align-items: center; justify-content: space-between; gap: 14px; }
.viewport-heading h2 { font: 500 22px/1.15 var(--serif); letter-spacing: -.025em; }
.model-state { max-width: 58%; overflow: hidden; color: var(--muted); font: 10px/1.4 var(--mono); text-overflow: ellipsis; white-space: nowrap; }
.stage { position: relative; width: 100%; height: min(68vh,760px); min-height: 470px; overflow: hidden; border: 1px solid #4a453c; background: var(--view); touch-action: pan-y pinch-zoom; }
.stage canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.stage.edit-mode { touch-action: none; }
.view-controls { position: absolute; z-index: 3; top: 13px; right: 13px; display: flex; gap: 5px; }
.icon-button { display: inline-grid; width: 42px; height: 42px; place-items: center; border: 1px solid rgba(244,239,230,.24); background: rgba(37,35,31,.88); color: var(--paper); font-size: 19px; line-height: 1; backdrop-filter: blur(8px); transition: background 150ms var(--ease), border-color 150ms var(--ease), transform 130ms var(--ease); }
.icon-button svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.mode-button { width: auto; min-width: 58px; padding: 0 10px; font: 10px/1.2 var(--mono); }
.mode-button[aria-pressed="true"] { border-color: var(--oxide); background: var(--oxide); }
.icon-button:active, .button:active { transform: scale(.98); }
.icon-button:focus-visible { outline-color: #e3b66d; }
.view-instructions { position: absolute; z-index: 2; bottom: 13px; left: 14px; max-width: calc(100% - 28px); padding: 7px 10px; border: 1px solid rgba(244,239,230,.2); background: rgba(37,35,31,.84); color: var(--paper); font: 10px/1.45 var(--mono); pointer-events: none; }
.map-legend { display: flex; min-height: 47px; align-items: center; justify-content: space-between; gap: 12px 20px; padding: 10px 0; border-bottom: 1px solid var(--rule); color: var(--muted); font: 10px/1.45 var(--mono); flex-wrap: wrap; }
.scale-key { display: flex; align-items: center; gap: 8px; }
.scale-ramp { width: clamp(90px,12vw,170px); height: 7px; background: linear-gradient(90deg,#4e6270 0%,#67838a 25%,#939785 50%,#c28b3b 72%,#d37545 88%,#a33e44 100%); }
body[data-analysis="wind"] .scale-ramp { background: linear-gradient(90deg,#314a67 0%,#617f88 35%,#9eaa82 65%,#c99c4d 100%); }
body[data-analysis="wind"] .sun-key { display: none; }
.sun-key { display: inline-flex; align-items: center; gap: 7px; }
.sun-mark { width: 8px; height: 8px; border-radius: 50%; background: var(--ochre); }

.side { min-width: 0; padding-bottom: 20px; }
.panel-head { padding: 11px 0 13px; border-top: 2px solid var(--oxide); }
.panel-head h2 { margin-top: 5px; font: 500 29px/1.05 var(--serif); letter-spacing: -.035em; }
.panel-head p { margin-top: 5px; color: var(--muted); font-size: 12px; }
.control-section { padding: 15px 0; border-top: 1px solid var(--rule); }
.control-section h3, .control-section > legend { display: block; margin: 0 0 10px; font: 500 19px/1.2 var(--serif); letter-spacing: -.015em; }
.model-summary { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 1px 0 10px; font-size: 12px; }
.model-summary .badge { color: var(--leaf); font: 10px/1.4 var(--mono); letter-spacing: .04em; }
.upload-line { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 7px; align-items: stretch; }
.file-label { position: relative; display: flex; min-width: 0; min-height: 46px; align-items: center; justify-content: center; overflow: hidden; border: 1px solid var(--rule); padding: 8px 10px; background: var(--white); color: var(--ink); font: 11px/1.3 var(--mono); cursor: pointer; }
.file-label input { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; clip-path: inset(50%); border: 0; }
.file-label:focus-within { outline: 3px solid var(--oxide); outline-offset: 3px; }
.file-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.button { display: inline-flex; min-height: 46px; align-items: center; justify-content: center; gap: 8px; border: 1px solid var(--oxide); padding: 9px 14px; background: var(--oxide); color: var(--paper); font: 600 11px/1.25 var(--sans); text-align: center; transition: background 150ms var(--ease), color 150ms var(--ease), border-color 150ms var(--ease), transform 130ms var(--ease); }
.button.secondary { border-color: var(--rule); background: transparent; color: var(--ink); }
.upload-button { min-width: 84px; }
.metrics { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); margin-top: 13px; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.metric { min-width: 0; padding: 12px 8px 11px 0; }
.metric + .metric { padding-left: 10px; border-left: 1px solid var(--rule); }
.metric b { display: block; overflow: hidden; color: var(--ink); font: 500 25px/1.05 var(--serif); font-variant-numeric: tabular-nums; text-overflow: ellipsis; white-space: nowrap; }
.metric span { display: block; margin-top: 5px; color: var(--muted); font: 9px/1.4 var(--mono); }
.status-line { display: flex; min-height: 32px; align-items: center; gap: 8px; margin-top: 6px; color: var(--muted); font-size: 11px; line-height: 1.4; }
.status-dot { width: 7px; height: 7px; flex: 0 0 7px; border-radius: 50%; background: var(--leaf); }
body[data-state="working"] .status-dot { background: var(--ochre); animation: pulse 1s ease-in-out infinite alternate; }
body[data-state="error"] .status-dot { background: var(--oxide); }
@keyframes pulse { to { opacity: .35; } }
.auto-note { margin-top: 7px; color: var(--muted); font-size: 11px; line-height: 1.5; }
.fields { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 10px; }
.fields .wide { grid-column: 1/-1; }
.fields label { display: grid; min-width: 0; gap: 5px; color: var(--muted); font: 10px/1.35 var(--mono); }
.fields input, .fields select { width: 100%; min-width: 0; min-height: 44px; border: 1px solid var(--rule); padding: 9px 10px; background: var(--white); color: var(--ink); font: 14px/1.3 var(--sans); }
.fields input:hover, .fields select:hover { border-color: var(--muted); }
.city-row { display: grid; grid-template-columns: minmax(0,1fr) 46px; gap: 7px; align-items: end; grid-column: 1/-1; }
.city-search-field { display: grid; min-width: 0; gap: 5px; }
.city-search-field label { color: var(--muted); font: 10px/1.35 var(--mono); }
.city-row input { width: 100%; min-width: 0; min-height: 46px; border: 1px solid var(--rule); padding: 9px 10px; background: var(--white); color: var(--ink); font: 14px/1.3 var(--sans); }
.city-find { display: grid; width: 46px; height: 46px; place-items: center; border: 1px solid var(--rule); background: var(--white); color: var(--ink); }
.city-find svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; }
.hour-field { grid-column: 1/-1; grid-template-columns: 1fr auto; align-items: center; gap: 3px 12px !important; }
.hour-field > span { grid-column: 1; }
.hour-field output { grid-column: 2; grid-row: 1; color: var(--ink); font: 500 21px/1 var(--serif); font-variant-numeric: tabular-nums; }
.hour-field input[type="range"] { grid-column: 1/-1; width: 100%; min-height: 42px; padding: 0; border: 0; background: transparent; accent-color: var(--oxide); appearance: none; -webkit-appearance: none; cursor: pointer; }
.hour-field input[type="range"]::-webkit-slider-runnable-track { height: 3px; background: linear-gradient(90deg,var(--oxide) 0 var(--progress,80%),var(--rule) var(--progress,80%) 100%); }
.hour-field input[type="range"]::-moz-range-track { height: 3px; background: linear-gradient(90deg,var(--oxide) 0 var(--progress,80%),var(--rule) var(--progress,80%) 100%); }
.hour-field input[type="range"]::-webkit-slider-thumb { width: 16px; height: 16px; margin-top: -7px; border: 3px solid var(--paper); border-radius: 50%; background: var(--oxide); box-shadow: 0 0 0 1px var(--oxide); -webkit-appearance: none; }
.hour-field input[type="range"]::-moz-range-thumb { width: 13px; height: 13px; border: 3px solid var(--paper); border-radius: 50%; background: var(--oxide); box-shadow: 0 0 0 1px var(--oxide); }
.sunbox { margin-top: 12px; padding: 7px; background: var(--view); }
.sunbox canvas { width: 100%; height: auto; aspect-ratio: 31/9; }
.sun-caption { margin-top: 6px; color: var(--muted); font: 9px/1.45 var(--mono); }
.wind-fields { grid-template-columns: 1fr 1fr; margin-top: 10px; }
.wind-fields label { min-width: 0; }
.wind-fields label small { display: block; margin-top: 4px; color: var(--muted); font: 9px/1.4 var(--mono); }
.wind-fields select { width: 100%; min-height: 44px; padding: 8px 10px; border: 1px solid var(--rule); background: var(--white); color: var(--ink); }
.action-row { display: grid; grid-template-columns: minmax(0,1fr) minmax(100px,.8fr); gap: 9px; align-items: center; margin-top: 12px; }
.wind-action { align-items: center; }
.wind-action .auto-note { max-width: 17ch; }
.auto-check { display: flex; min-height: 42px; align-items: center; gap: 8px; color: var(--muted); font-size: 11px; }
.auto-check input { width: 17px; height: 17px; accent-color: var(--oxide); }
.wind-auto { margin-top: 5px; }
.wind-auto input { flex: 0 0 17px; margin: 0; }
.wind-summary { display: grid; grid-template-columns: repeat(3,1fr); margin-top: 14px; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.wind-summary > div { display: flex; min-width: 0; flex-direction: column; padding: 11px 7px 10px 0; }
.wind-summary b { overflow: hidden; font: 500 20px/1.1 var(--serif); font-variant-numeric: tabular-nums; text-overflow: ellipsis; white-space: nowrap; }
.wind-summary span { margin-top: 5px; color: var(--muted); font: 9px/1.35 var(--mono); }
.wind-summary i { font-style: normal; }
.wind-legend { display: flex; align-items: center; gap: 7px; margin: 12px 0 4px; color: var(--muted); font: 9px/1.3 var(--mono); }
.wind-legend i { height: 6px; flex: 1; background: linear-gradient(90deg,#314a67,#819083,#c8a75d,#b64d38); }
.stats { overflow-wrap: anywhere; white-space: pre-wrap; color: var(--ink); font: 10px/1.65 var(--mono); }
.result-actions { display: flex; justify-content: flex-start; margin-top: 10px; }
details { border-top: 1px solid var(--rule); }
details > summary { display: flex; min-height: 47px; align-items: center; justify-content: space-between; gap: 14px; padding: 5px 0; color: var(--ink); font: 500 16px/1.3 var(--serif); cursor: pointer; list-style: none; }
details > summary::-webkit-details-marker { display: none; }
details > summary::after { content: "+"; color: var(--oxide); font: 16px/1 var(--mono); }
details[open] > summary::after { content: "−"; }
details > summary span { margin-left: auto; color: var(--muted); font: 9px/1.35 var(--mono); }
.details-content { padding: 0 0 13px; }
details .fields { padding-top: 5px; }
.model-edit { margin-top: 13px; padding: 0 0 4px; border-bottom: 1px solid var(--rule); }
.model-edit > summary { min-height: 45px; font: 500 16px/1.3 var(--serif); }
.model-edit[open] { padding-bottom: 10px; }
.model-edit .model-tools { margin-top: 7px; }
.model-tools { position: static !important; display: flex !important; max-width: none !important; flex-wrap: wrap; gap: 7px !important; padding: 0 !important; border: 0 !important; background: transparent !important; }
.model-tools > b { display: none !important; }
.model-tools #selectedPart { flex: 1 1 100%; color: var(--muted) !important; font: 11px/1.5 var(--sans) !important; }
.model-tools button { width: auto !important; min-width: 74px; min-height: 40px; margin: 0 !important; padding: 7px 11px !important; border: 1px solid var(--rule) !important; background: transparent !important; color: var(--ink) !important; font: 10px/1.3 var(--mono) !important; }
.model-tools button[aria-pressed="true"] { border-color: var(--ink) !important; background: var(--ink) !important; color: var(--paper) !important; }
.model-tools button:last-child { flex: 1 1 100%; border-color: var(--ink) !important; background: var(--ink) !important; color: var(--paper) !important; }
.disclaimer { margin-top: 12px; padding: 10px 0 0; border-top: 1px solid var(--rule); color: var(--muted); font-size: 10px; line-height: 1.5; }

.time-analysis { margin-top: clamp(42px,7vw,90px); padding-top: clamp(23px,4vw,42px); border-top: 1px solid var(--rule); }
.time-analysis-head { display: flex; align-items: end; justify-content: space-between; gap: 26px; margin-bottom: 22px; }
.time-analysis-head h2 { margin-top: 7px; font: 400 clamp(34px,4.3vw,59px)/.94 var(--serif); letter-spacing: -.045em; }
.time-analysis-copy { max-width: 52ch; margin-top: 9px; color: var(--muted); font-size: 13px; }
.chart-summary { flex: 0 0 auto; max-width: 32ch; padding: 8px 0 4px 15px; border-left: 1px solid var(--rule); color: var(--ink); font: 10px/1.5 var(--mono); font-variant-numeric: tabular-nums; }
.chart-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-bottom: 12px; }
.chart-actions { display: flex; align-items: center; gap: 7px; }
.chart-actions .button { min-width: 104px; min-height: 42px; padding: 8px 12px; border: 1px solid var(--rule); background: transparent; color: var(--ink); font: 500 10px/1.25 var(--mono); }
.chart-profile-actions .button[aria-pressed="true"], .chart-actions #dayChart, .chart-actions #yearChart { border-color: var(--ink); background: var(--ink); color: var(--paper); }
.chart-actions #playYear { grid-column: auto; }
.chart-frame { position: relative; width: 100%; overflow: hidden; border: 1px solid #48443c; background: var(--view); }
.chart { display: block; width: 100%; height: clamp(280px,32vw,450px); margin: 0; background: var(--view); }
.chart-tooltip { position: absolute; z-index: 2; display: none; max-width: calc(100% - 16px); padding: 8px 11px; border: 1px solid var(--rule); background: var(--paper); color: var(--ink); font: 10px/1.3 var(--mono); font-variant-numeric: tabular-nums; pointer-events: none; }
.chart-tooltip.visible { display: block; }
.chart-empty { position: absolute; inset: 0; display: grid; place-items: center; margin: 0; padding: 24px; color: #d1c9bc; text-align: center; font: 13px/1.5 var(--sans); pointer-events: none; }
.chart-empty[hidden] { display: none; }

.project-record { display: grid; grid-template-columns: minmax(250px,.8fr) minmax(0,1.2fr); gap: clamp(28px,7vw,110px); margin-top: clamp(52px,8vw,104px); padding: clamp(28px,4vw,48px) 0 10px; border-top: 2px solid var(--ink); }
.project-record-heading h2 { max-width: 12ch; margin-top: 13px; font: 400 clamp(34px,4.5vw,60px)/.91 var(--serif); letter-spacing: -.045em; }
.project-record-heading > p:last-child { max-width: 38ch; margin-top: 15px; color: var(--muted); font-size: 13px; line-height: 1.6; }
.project-record-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); align-content: start; column-gap: 26px; }
.project-record-grid article { padding: 15px 0 17px; border-top: 1px solid var(--rule); }
.project-record-grid article:last-child { grid-column: 1/-1; }
.project-record-grid h3 { font: 500 19px/1.2 var(--serif); }
.project-record-grid p { max-width: 44ch; margin-top: 7px; color: var(--muted); font-size: 12px; line-height: 1.6; }

.app-footer { display: flex; max-width: 1680px; justify-content: space-between; gap: 18px; margin: 0 auto; padding: 18px var(--gutter) 28px; border-top: 1px solid var(--rule); color: var(--muted); font: 9px/1.5 var(--mono); letter-spacing: .025em; }
.app-footer a { color: var(--ink); text-decoration: underline; text-decoration-color: var(--rule); text-underline-offset: 4px; }
.hidden-ui { display: none !important; }

@media (hover:hover) and (pointer:fine) {
  .icon-button:hover { border-color: rgba(244,239,230,.55); background: rgba(169,68,42,.9); }
  .button:hover:not(:disabled) { border-color: var(--ink); background: var(--ink); }
  .button.secondary:hover:not(:disabled) { border-color: var(--oxide); background: var(--oxide); color: var(--paper); }
  .city-find:hover, .file-label:hover { border-color: var(--oxide); color: var(--oxide); }
  .analysis-tab:hover:not(.active) { color: var(--oxide); }
  .model-tools button:hover { border-color: var(--oxide) !important; color: var(--oxide) !important; }
  .model-tools button[aria-pressed="true"]:hover, .model-tools button:last-child:hover { background: var(--oxide) !important; color: var(--paper) !important; }
}
@media (max-width: 980px) {
  :root { --gutter: clamp(20px,4vw,42px); }
  .workspace { grid-template-columns: minmax(0,1.25fr) minmax(290px,.75fr); gap: 26px; }
  .stage { height: min(64vh,700px); min-height: 420px; }
}
@media (max-width: 760px) {
  :root { --gutter: 22px; }
  main { padding-bottom: 48px; }
  .opening { grid-template-columns: 1fr; gap: 18px; padding: 34px 0 32px; }
  .opening h1 { max-width: 16ch; font-size: clamp(50px,12vw,76px); }
  .opening-copy { max-width: 54ch; }
  .opening-copy strong { font-size: 21px; }
  .workspace { grid-template-columns: 1fr; gap: 0; }
  .viewport-column { position: relative; top: auto; }
  .stage { height: min(70svh,650px); min-height: 380px; }
  .map-legend { justify-content: flex-start; gap: 8px 15px; }
  .side { padding-top: 22px; }
  .panel-head { padding-top: 12px; }
  .time-analysis-head { display: block; }
  .chart-summary { max-width: none; margin-top: 14px; padding: 0; border: 0; }
  .project-record { grid-template-columns: 1fr; gap: 24px; }
  .project-record-heading h2 { max-width: 16ch; }
  .project-record-grid { column-gap: 18px; }
  .chart-toolbar { display: grid; gap: 8px; }
  .chart-actions { display: grid; gap: 7px; }
  .chart-play-actions { grid-template-columns: repeat(3,minmax(0,1fr)); }
  .chart-actions .button { min-width: 0; }
  .chart { height: clamp(270px,72vw,360px); }
}
@media (max-width: 420px) {
  :root { --gutter: 16px; }
  .nav-inner { min-height: 56px; }
  .nav-back { font-size: 9px; }
  .opening { padding-top: 28px; }
  .opening h1 { max-width: 16ch; font-size: clamp(45px,12vw,56px); }
  .analysis-tabs { gap: 20px; }
  .analysis-tab { font-size: 12px; }
  .stage { height: 61svh; min-height: 350px; }
  .model-state { max-width: 52%; font-size: 9px; }
  .fields { gap: 8px; }
  .wind-summary b { font-size: 17px; }
  .wind-summary span { font-size: 8px; }
  .action-row { grid-template-columns: 1fr; gap: 4px; }
  .auto-check { min-height: 40px; }
  .metric { padding-right: 5px; }
  .metric + .metric { padding-left: 7px; }
  .metric b { font-size: 21px; }
  .app-footer { flex-direction: column; gap: 7px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: .01ms !important; }
}

/* Mobile workspace: keep the model in front, with controls one thumb away. */
.control-drawer { display: contents; }
.drawer-toggle { display: none; }
@media (max-width: 760px) {
  html { scroll-padding-top: 56px; }
  body { font-size: 14px; }
  .site-nav { background: rgba(244,239,230,.96); }
  .nav-inner { min-height: 54px; }
  .opening { grid-template-columns: 1fr; gap: 10px; padding: 26px 0 20px; }
  .kicker { font-size: 9px; gap: 6px 12px; }
  .opening h1 { max-width: none; margin-top: 8px; font-size: clamp(37px,10vw,54px); line-height: .92; letter-spacing: -.045em; }
  .opening-copy { max-width: 48ch; font-size: 12px; line-height: 1.45; }
  .opening-copy strong { margin-bottom: 4px; font-size: 17px; }
  .opening-note { display: none; }
  .analysis-tabs { position: sticky; z-index: 8; top: 54px; gap: 24px; margin: 0 calc(-1 * var(--gutter)); padding: 0 var(--gutter); background: rgba(244,239,230,.95); backdrop-filter: blur(12px); }
  .analysis-tab { min-height: 44px; font-size: 13px; }
  .analysis-tab span { color: var(--oxide); font: 9px var(--mono); }
  .workspace { display: block; }
  .viewport-heading { min-height: 38px; }
  .viewport-heading h2 { font-size: 19px; }
  .stage { height: clamp(330px,52svh,560px); min-height: 0; border-radius: 2px; touch-action: pan-y pinch-zoom; }
  .view-controls { top: 10px; right: 10px; gap: 6px; }
  .icon-button { width: 44px; height: 44px; border-radius: 50%; }
  .mode-button { width: auto; min-width: 58px; border-radius: 24px; }
  .view-instructions { bottom: 10px; left: 10px; padding: 6px 9px; font-size: 9px; }
  .map-legend { min-height: 42px; justify-content: space-between; gap: 8px; padding: 8px 0; font-size: 9px; }
  .scale-ramp { width: clamp(72px,23vw,112px); }
  .model-edit { margin-top: 8px; }
  .control-drawer { display: block; position: fixed; z-index: 30; right: 0; bottom: 0; left: 0; max-height: 82dvh; padding: 0 max(var(--gutter), env(safe-area-inset-right)) env(safe-area-inset-bottom) max(var(--gutter), env(safe-area-inset-left)); border: 0; border-top: 1px solid rgba(33,28,23,.14); background: rgba(244,239,230,.98); box-shadow: 0 -12px 38px rgba(33,28,23,.13); backdrop-filter: blur(18px) saturate(130%); }
  .drawer-toggle { position: relative; display: flex; min-height: 70px; align-items: center; justify-content: space-between; gap: 18px; padding: 10px 0; cursor: pointer; list-style: none; }
  .drawer-toggle::-webkit-details-marker { display: none; }
  .drawer-label { display: grid; gap: 2px; }
  .drawer-label small { color: var(--oxide); font: 9px/1.2 var(--mono); letter-spacing: .08em; }
  .drawer-label b { font: 500 20px/1.1 var(--serif); }
  .drawer-state { display: inline-flex; min-height: 40px; align-items: center; gap: 16px; padding: 0 14px; border: 1px solid var(--rule); color: var(--ink); font: 10px var(--mono); }
  .drawer-state::after { color: var(--oxide); content: "+"; font-size: 16px; }
  .control-drawer[open] { height: min(78dvh,740px); }
  .control-drawer[open] .drawer-state::after { content: "−"; }
  .side { height: calc(100% - 70px); overflow: auto; overscroll-behavior: contain; padding: 0 0 28px; scrollbar-width: thin; }
  .panel-head { padding: 8px 0 10px; }
  .panel-head h2 { font-size: 25px; }
  .control-section { padding: 13px 0; }
  .fields input, .fields select, .city-row input { min-height: 48px; font-size: 16px; }
  .button { min-height: 48px; }
  .auto-check { min-height: 46px; }
  .hour-field input[type="range"] { min-height: 48px; }
  .sunbox { margin-top: 10px; }
  .sunbox canvas { aspect-ratio: 31/10; }
  .metrics { margin-top: 10px; }
  .metric b { font-size: 23px; }
  .time-analysis { margin-top: 42px; }
  .project-record { margin-top: 46px; }
  .app-footer { padding-bottom: calc(90px + env(safe-area-inset-bottom)); }
}
@media (max-width: 420px) {
  .opening { padding-top: 22px; }
  .opening h1 { font-size: clamp(35px,10.5vw,45px); }
  .stage { height: 49svh; min-height: 310px; }
  .model-state { max-width: 54%; }
  .view-controls { gap: 4px; }
  .icon-button { width: 42px; height: 42px; }
  .mode-button { min-width: 52px; }
}
@media (max-width: 760px) and (prefers-reduced-transparency: reduce) {
  .control-drawer, .analysis-tabs { background: var(--paper); backdrop-filter: none; }
}