threshold / build /styles.css
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:root {
color-scheme: dark;
--background: #081014;
--ink: #edf3ef;
--muted: #a1b1b6;
--solar: #ffb547;
--air: #47d7dc;
--thermal: #ff826b;
--leaf: #9edf9f;
--line: #30444c;
--mono: Consolas, "Liberation Mono", monospace;
}
* {
box-sizing: border-box;
}
html {
background: var(--background);
scroll-behavior: smooth;
}
body {
margin: 0;
background:
linear-gradient(#47d7dc05 1px, transparent 1px),
linear-gradient(90deg, #47d7dc05 1px, transparent 1px), var(--background);
background-size: 32px 32px;
color: var(--ink);
font:
16px/1.5 system-ui,
-apple-system,
"Segoe UI",
sans-serif;
}
button,
input {
font: inherit;
}
button {
color: inherit;
cursor: pointer;
}
a {
color: inherit;
}
button:focus-visible,
a:focus-visible,
summary:focus-visible {
outline: 3px solid var(--air);
outline-offset: 4px;
}
h1,
h2,
h3,
p {
margin-top: 0;
}
.skip-link {
position: fixed;
top: -100px;
left: 12px;
background: var(--ink);
color: #081014;
padding: 12px;
z-index: 40;
}
.skip-link:focus {
top: 12px;
}
.site-header {
display: flex;
justify-content: space-between;
align-items: center;
gap: 16px;
padding: 12px 24px;
border-bottom: 1px solid var(--line);
background: #081014f2;
min-height: 72px;
}
.wordmark {
display: grid;
text-decoration: none;
}
.wordmark span {
font-size: 18px;
letter-spacing: 0.18em;
font-weight: 850;
}
.wordmark small {
color: var(--muted);
font: 12px/1.5 var(--mono);
}
.site-header__right {
display: flex;
align-items: center;
gap: 18px;
}
.site-header__right > a {
font-size: 14px;
}
.method-badge {
color: var(--leaf);
font: 12px/1.4 var(--mono);
}
.export-button,
.reset-button {
border: 1px solid var(--line);
background: var(--ink);
color: #081014;
border-radius: 3px;
min-height: 44px;
padding: 8px 12px;
font-size: 14px;
font-weight: 650;
}
.reset-button {
background: transparent;
color: var(--ink);
width: 44px;
flex-shrink: 0;
font-size: 24px;
}
.export-button:hover,
.reset-button:hover {
border-color: var(--air);
}
.intro {
display: grid;
grid-template-columns: 1.2fr 1fr;
gap: 32px;
align-items: center;
padding: 20px 24px;
border-bottom: 1px solid var(--line);
}
.eyebrow {
display: block;
color: var(--muted);
font: 12px/1.5 var(--mono);
letter-spacing: 0.07em;
text-transform: uppercase;
}
.intro h1 {
font-size: clamp(25px, 2.8vw, 42px);
font-weight: 420;
line-height: 1.08;
letter-spacing: -0.035em;
margin: 5px 0 0;
max-width: 620px;
}
.intro p {
border-left: 2px solid var(--solar);
padding-left: 18px;
color: var(--muted);
margin: 0;
max-width: 610px;
}
.climate-strip {
display: grid;
grid-template-columns: 210px auto 1fr;
gap: 20px;
align-items: center;
padding: 14px 24px;
border-bottom: 1px solid var(--line);
background: #0d191d;
}
.climate-strip__label {
display: flex;
gap: 10px;
align-items: center;
}
.climate-strip__label > b {
font-size: 25px;
color: var(--solar);
}
.climate-strip__label span {
display: grid;
}
.climate-strip__label small {
font-size: 12px;
color: var(--muted);
}
.climate-strip__label strong {
font-size: 14px;
}
.climate-strip p {
margin: 0;
font-size: 14px;
color: var(--muted);
}
.climate-options,
.lens-switcher {
display: flex;
}
.climate-options button,
.lens-switcher button {
border: 1px solid var(--line);
background: transparent;
min-height: 44px;
padding: 8px 10px;
font-size: 14px;
margin-left: -1px;
}
.climate-options button:first-child,
.lens-switcher button:first-child {
margin-left: 0;
}
.climate-options button:hover,
.lens-switcher button:hover {
background: #20353c;
}
.climate-options .is-active,
.lens-switcher [aria-pressed="true"] {
background: var(--air);
color: #061013;
border-color: var(--air);
position: relative;
}
.quick-result {
padding: 10px 24px;
margin: 0;
border-bottom: 1px solid var(--line);
color: var(--leaf);
font-size: 14px;
background: #10231d;
}
.studio {
display: grid;
grid-template-columns: minmax(260px, 0.9fr) minmax(430px, 1.7fr) minmax(290px, 1fr);
align-items: start;
}
.panel {
padding: 22px;
min-width: 0;
}
.design-panel {
border-right: 1px solid var(--line);
}
.consequence-panel {
border-left: 1px solid var(--line);
}
.canvas-panel {
background: #09151a88;
}
.panel__title,
.canvas-panel__head {
display: flex;
justify-content: space-between;
align-items: start;
gap: 12px;
}
.panel__title h2,
.canvas-panel__head h2 {
font-size: 21px;
font-weight: 500;
margin: 4px 0 0;
line-height: 1.2;
}
.panel__intro {
color: var(--muted);
margin: 18px 0 8px;
}
.control {
border-top: 1px solid var(--line);
padding: 14px 0 10px;
}
.control__head {
display: flex;
justify-content: space-between;
gap: 12px;
align-items: baseline;
}
.control__head label {
font-size: 14px;
font-weight: 650;
}
.control__head output {
font: 12px/1.5 var(--mono);
color: var(--air);
white-space: nowrap;
}
.control-note {
color: var(--muted);
font-size: 12px;
margin: 12px 0 0;
}
input[type="range"] {
appearance: none;
-webkit-appearance: none;
display: block;
width: 100%;
height: 32px;
cursor: pointer;
background: linear-gradient(90deg, var(--air) var(--progress), var(--line) var(--progress))
center/100% 3px no-repeat;
margin: 4px 0;
}
input[type="range"]::-webkit-slider-thumb {
appearance: none;
-webkit-appearance: none;
width: 22px;
height: 22px;
border: 2px solid var(--air);
border-radius: 50%;
background: #071013;
}
input[type="range"]::-moz-range-thumb {
width: 20px;
height: 20px;
border: 2px solid var(--air);
border-radius: 50%;
background: #071013;
}
input[type="range"]:focus-visible {
outline: 2px solid var(--air);
outline-offset: 2px;
}
.canvas-panel__head {
flex-wrap: wrap;
}
.section-diagram {
display: block;
width: 100%;
height: auto;
max-height: 360px;
margin: 12px 0;
overflow: visible;
}
.section-diagram text {
font-family: var(--mono);
}
.ground-line,
.shell-line,
.roof-line {
fill: none;
stroke: #c5d4d2;
stroke-width: 2;
}
.ground-line {
stroke: #647c85;
stroke-width: 1;
}
.roof-line {
stroke-width: 5;
}
.hatch {
stroke: #849ba2;
stroke-width: 0.6;
}
.mass-floor {
stroke: #9db1b7;
stroke-width: 1;
}
.window {
fill: var(--air);
stroke: var(--air);
stroke-width: 2;
}
.shade-line {
stroke: #dce9e6;
stroke-width: 6;
}
.dimension-line {
stroke: #849ba2;
stroke-width: 0.7;
}
.dimension-text {
fill: #c0d0d3;
font-size: 15px;
}
.sun-disc {
fill: var(--solar);
}
.sun-ray {
fill: none;
stroke: var(--solar);
stroke-dasharray: 7 6;
stroke-width: 2;
}
.sun-ray--soft {
opacity: 0.4;
}
.airflow path {
fill: none;
stroke: var(--air);
stroke-linecap: round;
stroke-width: 3;
}
.air-marker {
fill: var(--air);
}
.interior-objects {
fill: none;
opacity: 0.6;
stroke: #c5d6d1;
stroke-linecap: round;
stroke-linejoin: round;
stroke-width: 1.3;
}
.drawing-labels text {
fill: #9fb3bc;
font-size: 13px;
}
.selected-reading {
font: 14px/1.65 var(--mono);
color: var(--ink);
border-left: 2px solid var(--air);
padding-left: 12px;
margin: 0 0 20px;
}
.day-ribbon {
border-top: 1px solid var(--line);
padding-top: 16px;
}
.day-ribbon__head {
display: flex;
justify-content: space-between;
gap: 16px;
align-items: end;
}
.day-ribbon__head strong {
font-size: 14px;
display: block;
font-weight: 500;
}
.day-ribbon__time {
color: var(--air);
font: 12px/1.5 var(--mono);
white-space: nowrap;
}
.day-ribbon__plot {
height: 110px;
position: relative;
margin-top: 16px;
}
.day-ribbon__plot svg {
height: 84px;
width: 100%;
overflow: visible;
}
.temperature-line {
fill: none;
stroke: var(--thermal);
stroke-width: 2;
vector-effect: non-scaling-stroke;
}
.outdoor-line {
fill: none;
stroke: var(--muted);
stroke-dasharray: 4 4;
stroke-width: 1.5;
vector-effect: non-scaling-stroke;
}
.comfort-band {
fill: var(--leaf);
opacity: 0.12;
}
#chart-cursor {
stroke: var(--ink);
stroke-width: 1;
vector-effect: non-scaling-stroke;
opacity: 0.7;
}
.day-ribbon__ticks {
display: flex;
justify-content: space-between;
color: var(--muted);
font: 12px/1.5 var(--mono);
margin-top: 3px;
}
.chart-scale {
font-size: 12px;
color: var(--muted);
margin: 10px 0 0;
}
.score-block {
display: flex;
gap: 14px;
align-items: center;
margin: 22px 0 12px;
padding-bottom: 20px;
border-bottom: 1px solid var(--line);
}
.score-ring {
height: 80px;
width: 80px;
flex-shrink: 0;
display: grid;
place-items: center;
position: relative;
border-radius: 50%;
background: conic-gradient(var(--leaf) var(--score), #263b42 0);
}
.score-ring:after {
content: "";
position: absolute;
inset: 7px;
border-radius: 50%;
background: #0b1519;
}
.score-ring span {
position: relative;
z-index: 1;
font: 22px var(--mono);
}
.score-block > div:last-child {
display: grid;
gap: 3px;
}
.score-block small,
.score-block > div:last-child > span {
font-size: 12px;
color: var(--muted);
}
.score-block strong {
font-size: 16px;
font-weight: 500;
}
.metrics {
display: grid;
grid-template-columns: 1fr 1fr;
}
.metric {
padding: 16px 8px 14px 0;
border-bottom: 1px solid var(--line);
min-width: 0;
}
.metric:nth-child(even) {
padding-left: 12px;
border-left: 1px solid var(--line);
}
.metric__label {
display: block;
font-size: 12px;
color: var(--muted);
min-height: 36px;
}
.metric strong {
font: 20px/1.5 var(--mono);
display: block;
}
.metric > span:last-child {
font-size: 12px;
color: var(--muted);
display: block;
}
.metric--leaf strong {
color: var(--leaf);
}
.metric--thermal strong {
color: var(--thermal);
}
.metric--solar strong {
color: var(--solar);
}
.metric--air strong {
color: var(--air);
}
.observation {
display: flex;
gap: 10px;
padding: 14px;
margin-top: 18px;
border: 1px solid #695126;
background: #ffb5470a;
}
.observation > b {
color: var(--solar);
}
.observation p {
margin: 5px 0 0;
font-size: 16px;
color: #c4cfcb;
}
.compare-link {
display: flex;
justify-content: space-between;
gap: 12px;
background: transparent;
border: 0;
min-height: 44px;
padding: 8px 0;
margin-top: 8px;
color: var(--air);
font-size: 14px;
}
.comparison {
display: grid;
grid-template-columns: 0.9fr 1.3fr 0.8fr;
gap: 30px;
background: #dbe9e6;
color: #071013;
padding: 34px 24px;
}
.comparison .eyebrow,
.comparison__statement > span {
color: #425b61;
font: 12px/1.5 var(--mono);
}
.comparison h2 {
font-size: 30px;
font-weight: 450;
letter-spacing: -0.03em;
line-height: 1.15;
margin: 6px 0 0;
}
.comparison__statement p {
margin: 8px 0 0;
}
.comparison__bars {
display: grid;
gap: 18px;
align-content: center;
}
.comparison__bars > div {
display: grid;
grid-template-columns: 75px 1fr 40px;
gap: 10px;
align-items: center;
font-size: 14px;
}
.comparison__bars > div > div {
height: 8px;
background: #adc3bf;
}
.comparison__bars i {
display: block;
height: 100%;
background: #0e777b;
}
.comparison__bars > div:first-child i {
background: #677b7f;
}
.comparison__bars strong {
font-size: 12px;
}
.method {
padding: 42px 24px;
border-bottom: 1px solid var(--line);
}
.method h2 {
font-size: 32px;
line-height: 1.15;
font-weight: 420;
margin: 8px 0 0;
max-width: 800px;
}
.method__grid {
display: grid;
grid-template-columns: repeat(4, 1fr);
gap: 24px;
margin-top: 32px;
}
.method__grid article {
border-top: 1px solid var(--line);
padding-top: 20px;
}
.method__grid article > span {
color: var(--air);
font-size: 22px;
}
.method__grid h3 {
font-size: 18px;
margin: 8px 0;
}
.method__grid p {
color: var(--muted);
margin: 0;
}
.assumptions {
margin-top: 30px;
border: 1px solid var(--line);
padding: 16px 20px;
}
.assumptions summary {
cursor: pointer;
min-height: 30px;
color: var(--air);
}
.assumptions p {
max-width: 1000px;
margin: 16px 0 0;
color: var(--muted);
}
.assumptions a {
text-underline-offset: 4px;
}
.reference-note {
color: var(--muted);
font-size: 14px;
margin: 18px 0 0;
}
footer {
display: flex;
justify-content: space-between;
gap: 12px;
padding: 24px;
font: 12px/1.6 var(--mono);
color: var(--muted);
}
.sr-only {
position: absolute;
width: 1px;
height: 1px;
overflow: hidden;
clip-path: inset(50%);
white-space: nowrap;
}
@media (min-width: 1600px) {
main {
max-width: 1800px;
margin: auto;
}
.panel {
padding: 28px;
}
.section-diagram {
max-height: 400px;
}
}
@media (max-width: 1100px) {
.studio {
grid-template-columns: 270px 1fr;
}
.consequence-panel {
grid-column: 1/-1;
border-top: 1px solid var(--line);
border-left: 0;
display: grid;
grid-template-columns: 1fr 1.5fr;
gap: 14px 28px;
}
.consequence-panel .panel__title {
grid-column: 1/-1;
}
.score-block {
margin: 0;
}
.observation {
margin: 0;
}
.metrics {
grid-row: 2/4;
grid-column: 2;
}
.climate-strip {
grid-template-columns: 210px 1fr;
}
.climate-strip p {
grid-column: 1/-1;
}
.comparison {
grid-template-columns: 1fr 1fr;
}
.comparison__bars {
grid-column: 1/-1;
}
.method__grid {
grid-template-columns: 1fr 1fr;
}
}
@media (max-width: 700px) {
.site-header {
padding: 10px 16px;
}
.wordmark small {
font-size: 12px;
max-width: 170px;
}
.method-badge,
.site-header__right > a {
display: none;
}
.site-header__right {
gap: 0;
}
.intro {
padding: 18px 16px;
display: block;
}
.intro h1 {
font-size: 28px;
}
.intro p {
font-size: 14px;
margin: 12px 0 0;
padding-left: 12px;
}
.climate-strip {
padding: 12px 16px;
display: block;
}
.climate-options {
margin: 10px 0;
flex-wrap: wrap;
}
.climate-options button {
font-size: 13px;
padding: 8px;
}
.climate-strip p {
font-size: 14px;
}
.quick-result {
padding: 10px 16px;
}
.studio {
display: flex;
flex-direction: column;
}
.panel {
width: 100%;
padding: 20px 16px;
}
.design-panel {
border-right: 0;
border-bottom: 1px solid var(--line);
}
.control-stack {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 0 20px;
}
.control__head {
display: grid;
gap: 2px;
}
.control__head output {
font-size: 12px;
}
.control:last-child {
grid-column: 1/-1;
}
.control:last-child .control__head {
display: flex;
}
.panel__intro {
font-size: 14px;
margin: 12px 0;
}
.control {
padding: 10px 0 6px;
}
.consequence-panel {
display: block;
order: 2;
}
.canvas-panel {
order: 3;
border-top: 1px solid var(--line);
}
.score-block {
margin: 20px 0 0;
}
.observation {
margin-top: 16px;
}
.canvas-panel__head {
gap: 16px;
}
.section-diagram {
margin: 20px 0;
}
.day-ribbon__head {
align-items: start;
flex-direction: column;
gap: 6px;
}
.comparison {
grid-template-columns: 1fr;
padding: 28px 16px;
gap: 20px;
}
.comparison__bars {
grid-column: auto;
}
.method {
padding: 32px 16px;
}
.method h2 {
font-size: 28px;
}
.method__grid {
grid-template-columns: 1fr;
}
.drawing-labels text {
font-size: 16px;
}
.drawing-labels text:nth-child(2) {
display: none;
}
.drawing-labels text:last-child {
display: none;
}
footer {
flex-direction: column;
padding: 20px 16px;
}
}
@media (prefers-reduced-motion: reduce) {
html {
scroll-behavior: auto;
}
}
.study-workspace {
padding: 24px;
border-bottom: 1px solid var(--line);
background: #0d191d;
}
.study-workspace h2 {
font-size: 26px;
font-weight: 500;
margin: 5px 0 12px;
}
.study-workspace p {
max-width: 900px;
}
.name-grid {
display: grid;
grid-template-columns: repeat(2, minmax(0, 1fr));
gap: 16px;
max-width: 900px;
}
.name-grid label {
display: grid;
gap: 6px;
font-size: 14px;
}
.name-grid input {
width: 100%;
min-width: 0;
background: #081014;
border: 1px solid var(--line);
border-radius: 3px;
color: var(--ink);
padding: 10px;
}
.name-grid input:focus-visible {
outline: 3px solid var(--air);
outline-offset: 2px;
}
.study-actions {
display: flex;
flex-wrap: wrap;
gap: 8px;
margin: 12px 0;
}
.study-actions button {
border: 1px solid var(--line);
border-radius: 3px;
background: #14262d;
min-height: 44px;
padding: 8px 14px;
overflow-wrap: anywhere;
max-width: 100%;
}
.study-actions [aria-pressed="true"] {
background: var(--air);
color: #071013;
}
.study-actions button:hover {
border-color: var(--air);
}
button:disabled,
input:disabled {
opacity: 0.5;
cursor: not-allowed;
}
[hidden] {
display: none !important;
}
#study-status {
color: var(--muted);
margin-bottom: 0;
}
#study-error {
color: #ffad99;
margin: 8px 0 0;
white-space: pre-wrap;
}
#active-alternative,
#result-alternative {
overflow-wrap: anywhere;
}
.reference-line {
fill: none;
stroke: var(--solar);
stroke-dasharray: 2 3;
stroke-width: 2;
vector-effect: non-scaling-stroke;
}
.comparison__bars > div {
grid-template-columns: minmax(80px, 1fr) minmax(60px, 1fr) 40px;
}
.comparison__bars span {
overflow-wrap: anywhere;
}
.change-explanations {
grid-column: 1/-1;
max-width: 1100px;
}
.change-explanations h3 {
margin-bottom: 8px;
}
.change-explanations li {
margin: 8px 0;
}
.change-explanations ul {
padding-left: 20px;
}
dialog {
background: #0d191d;
color: var(--ink);
border: 1px solid var(--air);
border-radius: 6px;
max-width: min(600px, calc(100vw - 32px));
padding: 24px;
}
dialog::backdrop {
background: #000b;
}
dialog h2 {
font-size: 23px;
}
dialog p {
color: var(--muted);
}
@media (max-width: 700px) {
.study-workspace {
padding: 20px 16px;
}
.name-grid {
grid-template-columns: 1fr;
}
.study-actions button {
flex: 1 1 140px;
}
.change-explanations {
grid-column: auto;
}
}