GPT-6.1 Terra
by OpenAIReasoningClean
Running live in a sandboxed frame. Click inside it before using the keyboard.
How it went
- Total time
- 2 min 53 s
- Cost
- $0.070
- Output tokens
- 13,973
- Spent thinking
- 6,978 tokens
- Speed
- 86.1 tok/s
- Console errors
- 0
- First token after
- 10.7 s
- First visible text after
- 1 min 54 s
- Prompt tokens
- 498
- Code size
- 20.0 KB
- Finish reason
- stop
- Served by
- OpenAI
- Model id
openai/gpt-6.1-terra- Reasoning sent
{"effort":"xhigh"}- Max output
- 128,000 tokens
- Generated
- Nov 12, 2026
What it was asked
The prompt
Create a set of four animated weather cards (sunny, rainy, snowy, stormy), made with HTML and CSS only. Requirements: - Absolutely no JavaScript: the file must not contain any <script> tag or inline event handler. - No images, no SVG, no icon fonts: every weather icon is built from HTML elements and pseudo-elements styled with CSS. - Each card shows an animated icon (rotating sun rays, falling rain drops, drifting snowflakes, flashing lightning), a city name, a temperature and a short description. - Each card has its own background gradient matching the weather. - The cards are displayed in a responsive grid (4 per row on desktop, stacked on mobile) and lift up on hover. - Smooth infinite animations using @keyframes, and respect prefers-reduced-motion.
System prompt, sent with every prompt
You are generating a self-contained web demo. It will be rendered automatically in a sandboxed iframe and compared side by side with the output of other AI models given the exact same task. Output rules: - Reply with exactly ONE fenced code block containing the complete file: ```html (or ```svg when the task asks for an SVG). No text before or after the code block. - Everything must be inline: CSS in <style>, JavaScript in <script>. No external files, images, fonts or network requests, except the CDN URLs explicitly allowed by the task. - Do not use localStorage, sessionStorage, cookies, IndexedDB, alert(), confirm(), prompt() or window.open(): they are blocked in the sandbox and will throw. - The page must look right in a 1280×800 viewport and adapt gracefully down to 375px wide. No horizontal scrollbar. - Something meaningful must be visible on first paint: a screenshot is taken automatically about 3 seconds after load, without any interaction. - Everything that makes the demo interesting must be visible within the first seconds: nothing hidden behind a high score, a later level or a long play session. - Games must start in a self-playing demo mode (a simple AI plays) behind a "Click or press a key to start" message, so the game can be judged in action without playing. - The iframe only receives keyboard events after the user clicks it: if the demo uses the keyboard, display a clear "Click or press a key to start" message. - The code must run with zero errors in the console of the latest Chrome.
Code run-1.html · 795 lines
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Whatever the Weather</title>
<style>
* { box-sizing: border-box; }
:root {
color-scheme: light;
font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
color: #292d2b;
background: #f5f5f0;
}
body {
margin: 0;
min-width: 0;
min-height: 100vh;
background:
radial-gradient(circle at 9% 2%, rgba(238, 228, 207, .45), transparent 28%),
radial-gradient(circle at 93% 94%, rgba(214, 225, 220, .35), transparent 28%),
#f5f5f0;
}
.page {
max-width: 1192px;
margin: 0 auto;
padding: 31px 28px 28px;
}
.topbar {
display: flex;
align-items: center;
justify-content: space-between;
gap: 20px;
padding-bottom: 22px;
border-bottom: 1px solid #ddded7;
}
.brand {
display: flex;
align-items: center;
gap: 11px;
}
.brand-mark {
position: relative;
width: 34px;
height: 34px;
flex: none;
border-radius: 50%;
background: #333d36;
}
.brand-mark::before {
content: "";
position: absolute;
width: 13px;
height: 13px;
left: 9px;
top: 8px;
border: 1.5px solid #f5dfa9;
border-radius: 50%;
}
.brand-mark::after {
content: "";
position: absolute;
width: 17px;
height: 2px;
left: 8px;
top: 23px;
border-radius: 2px;
background: #f5dfa9;
}
.brand-name {
font-size: 12px;
font-weight: 800;
letter-spacing: .17em;
}
.brand-sub {
margin-top: 3px;
color: #92968d;
font-size: 8px;
font-weight: 700;
letter-spacing: .16em;
}
.top-note {
color: #858a80;
font-size: 9px;
font-weight: 700;
letter-spacing: .15em;
white-space: nowrap;
}
.top-note span {
padding: 0 10px;
color: #c2c5bc;
}
.intro {
display: flex;
align-items: end;
justify-content: space-between;
gap: 30px;
margin: 39px 0 33px;
}
.eyebrow, .section-heading, .footer {
font-size: 9px;
font-weight: 800;
letter-spacing: .16em;
}
.eyebrow {
display: flex;
align-items: center;
gap: 9px;
color: #8b8f84;
}
.eyebrow::before {
content: "";
width: 7px;
height: 7px;
border-radius: 50%;
background: #d5a766;
box-shadow: 0 0 0 4px #eee7d9;
}
h1 {
margin: 11px 0 0;
font-size: clamp(38px, 4vw, 52px);
line-height: 1.06;
font-weight: 600;
letter-spacing: -.055em;
}
h1 span { color: #d3a36e; }
.intro-copy {
max-width: 250px;
margin: 0 0 4px;
padding-left: 19px;
border-left: 1px solid #d5d8cf;
color: #858b82;
font-size: 13px;
line-height: 1.55;
}
.section-heading {
display: flex;
justify-content: space-between;
gap: 15px;
margin-bottom: 13px;
color: #777e73;
}
.section-heading span:last-child { color: #a3a99f; }
.grid {
display: grid;
grid-template-columns: repeat(4, minmax(0, 1fr));
gap: 17px;
}
.card {
position: relative;
display: flex;
flex-direction: column;
min-width: 0;
height: 410px;
padding: 21px 20px 19px;
overflow: hidden;
color: var(--ink);
border: 1px solid var(--edge);
border-radius: 18px;
background: var(--background);
box-shadow: 0 12px 25px rgba(47, 56, 49, .07), 0 2px 5px rgba(47, 56, 49, .035);
transition: transform .3s ease, box-shadow .3s ease;
}
.card:hover {
transform: translateY(-8px);
box-shadow: 0 20px 32px rgba(47, 56, 49, .15), 0 4px 8px rgba(47, 56, 49, .05);
}
.sunny {
--ink: #51442f;
--muted: #917755;
--line: rgba(110, 85, 46, .18);
--edge: rgba(255, 255, 255, .62);
--chip: rgba(255, 255, 255, .25);
--orb: rgba(255, 250, 230, .42);
--cloud: #fff9e9;
--background: linear-gradient(145deg, #f9e9c4 0%, #f8dba8 55%, #efc18e 100%);
}
.rainy {
--ink: #354f5b;
--muted: #6e8991;
--line: rgba(56, 93, 107, .18);
--edge: rgba(255, 255, 255, .65);
--chip: rgba(255, 255, 255, .25);
--orb: rgba(240, 251, 253, .42);
--cloud: #f2f7f6;
--background: linear-gradient(145deg, #d8e9e9 0%, #c1dbe0 55%, #a9ccd5 100%);
}
.snowy {
--ink: #495568;
--muted: #8290a3;
--line: rgba(72, 91, 119, .16);
--edge: rgba(255, 255, 255, .72);
--chip: rgba(255, 255, 255, .31);
--orb: rgba(255, 255, 255, .48);
--cloud: #fafbff;
--background: linear-gradient(145deg, #edf0f6 0%, #dde5f1 58%, #cbd9eb 100%);
}
.stormy {
--ink: #f5f3f3;
--muted: #b0b9cf;
--line: rgba(238, 242, 255, .19);
--edge: rgba(255, 255, 255, .12);
--chip: rgba(255, 255, 255, .08);
--orb: rgba(221, 227, 255, .14);
--cloud: #b6bfd4;
--background: linear-gradient(145deg, #59637e 0%, #414b68 55%, #303950 100%);
}
.card-top {
display: flex;
align-items: center;
justify-content: space-between;
gap: 6px;
flex: none;
font-size: 9px;
font-weight: 800;
letter-spacing: .11em;
}
.condition {
display: inline-flex;
align-items: center;
gap: 7px;
padding: 7px 9px;
border: 1px solid var(--line);
border-radius: 20px;
background: var(--chip);
white-space: nowrap;
}
.condition .number { opacity: .58; }
.condition .slash { opacity: .35; }
.time {
display: flex;
align-items: center;
gap: 6px;
color: var(--muted);
font-size: 8px;
white-space: nowrap;
}
.time::before {
content: "";
width: 5px;
height: 5px;
border-radius: 50%;
background: currentColor;
opacity: .8;
}
.scene {
position: relative;
flex: 1;
min-height: 175px;
}
.scene::before {
content: "";
position: absolute;
width: 205px;
height: 205px;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
border-radius: 50%;
background: radial-gradient(circle, var(--orb) 0%, transparent 69%);
}
.orbit {
position: absolute;
width: 181px;
height: 181px;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
border: 1px solid var(--orb);
border-radius: 50%;
}
.orbit::after {
content: "";
position: absolute;
width: 5px;
height: 5px;
left: 24px;
top: 22px;
border-radius: 50%;
background: var(--orb);
}
.scene-dot {
position: absolute;
left: var(--x);
top: var(--y);
width: var(--size, 4px);
height: var(--size, 4px);
border-radius: 50%;
background: var(--orb);
}
/* The sun */
.sun {
position: absolute;
width: 160px;
height: 160px;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
}
.rays {
position: absolute;
inset: 0;
animation: rotate-rays 22s linear infinite;
}
.rays span {
position: absolute;
left: 50%;
top: 0;
width: 6px;
height: 18px;
margin-left: -3px;
border-radius: 5px;
background: #efae49;
transform-origin: 3px 80px;
transform: rotate(calc(var(--i) * 30deg));
}
.sun-disc {
position: absolute;
width: 84px;
height: 84px;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
border: 1px solid rgba(255, 244, 191, .8);
border-radius: 50%;
background: linear-gradient(145deg, #ffebb0, #ffd36d 60%, #f6bb4e);
box-shadow: 0 0 0 10px rgba(255, 237, 177, .25), 0 7px 22px rgba(214, 144, 52, .2);
}
.sun-disc::after {
content: "";
position: absolute;
inset: 8px;
border: 1px solid rgba(255, 255, 255, .18);
border-radius: 50%;
}
/* Clouds, rain, snow and lightning are all CSS shapes. */
.cloud-scene {
position: absolute;
width: 180px;
height: 174px;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
}
.cloud {
position: absolute;
z-index: 2;
top: 39px;
left: 50%;
width: 124px;
height: 48px;
border-radius: 40px;
background: var(--cloud);
filter: drop-shadow(0 8px 7px rgba(53, 76, 96, .13));
transform: translateX(-50%);
animation: cloud-float 5s ease-in-out infinite;
}
.cloud::before, .cloud::after {
content: "";
position: absolute;
border-radius: 50%;
background: var(--cloud);
}
.cloud::before {
width: 63px;
height: 63px;
left: 20px;
top: -28px;
}
.cloud::after {
width: 50px;
height: 50px;
right: 13px;
top: -17px;
}
.drop {
position: absolute;
z-index: 1;
left: var(--x);
top: calc(95px + var(--y));
width: 4px;
height: 13px;
border-radius: 5px;
background: #6c9fb2;
transform: rotate(16deg);
animation: rain 1.25s linear var(--delay) infinite;
}
.flake {
position: absolute;
z-index: 1;
left: var(--x);
top: calc(96px + var(--y));
width: 2px;
height: 13px;
border-radius: 2px;
color: #fff;
background: currentColor;
filter: drop-shadow(0 1px 1px rgba(92, 119, 152, .2));
animation: snow 3.2s ease-in-out var(--delay) infinite;
}
.flake::before, .flake::after {
content: "";
position: absolute;
inset: 0;
border-radius: inherit;
background: currentColor;
}
.flake::before { transform: rotate(60deg); }
.flake::after { transform: rotate(-60deg); }
.bolt-halo {
position: absolute;
z-index: 0;
top: 65px;
left: 42px;
width: 100px;
height: 100px;
border-radius: 50%;
background: radial-gradient(circle, rgba(255, 218, 132, .32), transparent 69%);
animation: halo-flash 4.8s ease-in-out infinite;
}
.bolt {
position: absolute;
z-index: 3;
top: 76px;
left: 71px;
width: 43px;
height: 72px;
background: linear-gradient(160deg, #fff2b4, #ffd16b 75%);
clip-path: polygon(47% 0, 8% 56%, 40% 56%, 29% 100%, 92% 38%, 58% 38%, 72% 0);
animation: lightning 4.8s ease-in-out infinite;
}
.stormy .cloud { filter: drop-shadow(0 9px 8px rgba(16, 23, 42, .24)); }
.weather-info { position: relative; z-index: 4; flex: none; }
.city-row {
display: flex;
align-items: end;
justify-content: space-between;
gap: 6px;
}
.location {
margin: 0 0 5px;
color: var(--muted);
font-size: 8px;
font-weight: 800;
letter-spacing: .14em;
white-space: nowrap;
}
h2 {
margin: 0;
font-size: 20px;
line-height: 1.08;
font-weight: 650;
letter-spacing: -.045em;
white-space: nowrap;
}
.temperature {
flex: none;
margin-bottom: -2px;
font-size: 45px;
line-height: .9;
font-weight: 500;
letter-spacing: -.07em;
white-space: nowrap;
}
.temperature span {
display: inline-block;
margin-left: 2px;
font-size: 25px;
line-height: 1;
vertical-align: top;
letter-spacing: 0;
}
.description {
margin: 11px 0 0;
color: var(--ink);
font-size: 12px;
opacity: .78;
}
.card-bottom {
display: flex;
justify-content: space-between;
gap: 8px;
margin-top: 18px;
padding-top: 13px;
border-top: 1px solid var(--line);
color: var(--muted);
font-size: 9px;
font-weight: 800;
letter-spacing: .05em;
}
.card-bottom b {
margin-left: 3px;
color: var(--ink);
font-weight: 700;
opacity: .8;
}
.card-bottom .low { margin-left: 9px; }
.footer {
display: flex;
justify-content: space-between;
gap: 20px;
margin-top: 25px;
color: #a0a69c;
}
.footer strong { color: #777f74; }
@keyframes rotate-rays {
to { transform: rotate(360deg); }
}
@keyframes cloud-float {
0%, 100% { transform: translate(-50%, 0); }
50% { transform: translate(-50%, -5px); }
}
@keyframes rain {
0% { opacity: 0; transform: translate(2px, -7px) rotate(16deg); }
18%, 70% { opacity: .85; }
100% { opacity: 0; transform: translate(-8px, 27px) rotate(16deg); }
}
@keyframes snow {
0% { opacity: 0; transform: translate(0, -7px) rotate(0deg); }
18%, 75% { opacity: 1; }
50% { transform: translate(7px, 10px) rotate(35deg); }
100% { opacity: 0; transform: translate(-3px, 31px) rotate(70deg); }
}
@keyframes lightning {
0%, 34%, 48%, 100% { opacity: .78; filter: brightness(.95); }
40%, 43% { opacity: 1; filter: brightness(1.35); }
}
@keyframes halo-flash {
0%, 34%, 48%, 100% { opacity: .55; }
40%, 43% { opacity: 1; }
}
@media (max-width: 1000px) {
.grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card { height: 390px; }
}
@media (max-width: 600px) {
.page { padding: 23px 20px 28px; }
.topbar { padding-bottom: 18px; }
.top-note { font-size: 8px; }
.top-note .extra { display: none; }
.intro { display: block; margin: 34px 0 28px; }
h1 { font-size: clamp(37px, 10vw, 48px); }
.intro-copy {
max-width: none;
margin-top: 17px;
padding-left: 13px;
font-size: 12px;
}
.section-heading { font-size: 8px; }
.grid { grid-template-columns: 1fr; gap: 15px; }
.card { height: 390px; padding: 21px 22px 19px; }
.footer { font-size: 8px; line-height: 1.6; }
.footer span:last-child { text-align: right; }
}
@media (prefers-reduced-motion: reduce) {
*, *::before, *::after {
animation: none !important;
transition: none !important;
}
.card:hover { transform: none; }
}
</style>
</head>
<body>
<div class="page">
<header class="topbar">
<div class="brand">
<div class="brand-mark" aria-hidden="true"></div>
<div>
<div class="brand-name">SKYWARD</div>
<div class="brand-sub">A WEATHER JOURNAL</div>
</div>
</div>
<div class="top-note"><span class="extra">MADE FOR LOOKING UP <span>/</span></span> VOL. 01</div>
</header>
<main>
<section class="intro">
<div>
<div class="eyebrow">A LITTLE LOOK OUTSIDE</div>
<h1>Whatever the weather<span>.</span></h1>
</div>
<p class="intro-copy">A little moment for the skies above the places we love.</p>
</section>
<div class="section-heading">
<span>A FORECAST FOR EVERY MOOD</span>
<span>FOUR PLACES / FOUR SKIES</span>
</div>
<section class="grid" aria-label="Four weather forecasts">
<article class="card sunny">
<div class="card-top">
<div class="condition"><span class="number">01</span><span class="slash">/</span> SUNNY</div>
<div class="time">DAYTIME</div>
</div>
<div class="scene" aria-hidden="true">
<div class="orbit"></div>
<i class="scene-dot" style="--x:12%;--y:35%;--size:5px"></i>
<i class="scene-dot" style="--x:85%;--y:66%;--size:4px"></i>
<i class="scene-dot" style="--x:77%;--y:19%;--size:3px"></i>
<div class="sun">
<div class="rays">
<span style="--i:0"></span><span style="--i:1"></span><span style="--i:2"></span>
<span style="--i:3"></span><span style="--i:4"></span><span style="--i:5"></span>
<span style="--i:6"></span><span style="--i:7"></span><span style="--i:8"></span>
<span style="--i:9"></span><span style="--i:10"></span><span style="--i:11"></span>
</div>
<div class="sun-disc"></div>
</div>
</div>
<div class="weather-info">
<div class="city-row">
<div><p class="location">CALIFORNIA, USA</p><h2>Palm Springs</h2></div>
<div class="temperature">27<span>°</span></div>
</div>
<p class="description">All sunshine, all day.</p>
<div class="card-bottom"><span>H <b>29°</b><span class="low">L <b>18°</b></span></span><span>UV INDEX <b>7</b></span></div>
</div>
</article>
<article class="card rainy">
<div class="card-top">
<div class="condition"><span class="number">02</span><span class="slash">/</span> RAINY</div>
<div class="time">DAYTIME</div>
</div>
<div class="scene" aria-hidden="true">
<div class="orbit"></div>
<i class="scene-dot" style="--x:13%;--y:48%;--size:4px"></i>
<i class="scene-dot" style="--x:85%;--y:30%;--size:5px"></i>
<i class="scene-dot" style="--x:78%;--y:76%;--size:3px"></i>
<div class="cloud-scene">
<div class="cloud"></div>
<i class="drop" style="--x:40px;--y:0px;--delay:-.1s"></i>
<i class="drop" style="--x:58px;--y:6px;--delay:-.6s"></i>
<i class="drop" style="--x:77px;--y:0px;--delay:-.9s"></i>
<i class="drop" style="--x:97px;--y:7px;--delay:-.3s"></i>
<i class="drop" style="--x:116px;--y:0px;--delay:-.8s"></i>
<i class="drop" style="--x:135px;--y:6px;--delay:-.45s"></i>
<i class="drop" style="--x:69px;--y:18px;--delay:-1.1s"></i>
<i class="drop" style="--x:108px;--y:18px;--delay:-.15s"></i>
</div>
</div>
<div class="weather-info">
<div class="city-row">
<div><p class="location">ENGLAND, UK</p><h2>London</h2></div>
<div class="temperature">14<span>°</span></div>
</div>
<p class="description">A little rain, a lot of charm.</p>
<div class="card-bottom"><span>H <b>16°</b><span class="low">L <b>11°</b></span></span><span>RAIN <b>80%</b></span></div>
</div>
</article>
<article class="card snowy">
<div class="card-top">
<div class="condition"><span class="number">03</span><span class="slash">/</span> SNOWY</div>
<div class="time">DAYTIME</div>
</div>
<div class="scene" aria-hidden="true">
<div class="orbit"></div>
<i class="scene-dot" style="--x:14%;--y:36%;--size:5px"></i>
<i class="scene-dot" style="--x:86%;--y:56%;--size:4px"></i>
<i class="scene-dot" style="--x:76%;--y:20%;--size:3px"></i>
<div class="cloud-scene">
<div class="cloud"></div>
<i class="flake" style="--x:41px;--y:2px;--delay:-.3s"></i>
<i class="flake" style="--x:63px;--y:13px;--delay:-1.7s"></i>
<i class="flake" style="--x:84px;--y:0px;--delay:-.9s"></i>
<i class="flake" style="--x:106px;--y:12px;--delay:-2.4s"></i>
<i class="flake" style="--x:130px;--y:1px;--delay:-1.2s"></i>
<i class="flake" style="--x:77px;--y:26px;--delay:-2.9s"></i>
<i class="flake" style="--x:119px;--y:25px;--delay:-.5s"></i>
</div>
</div>
<div class="weather-info">
<div class="city-row">
<div><p class="location">OSLO, NORWAY</p><h2>Oslo</h2></div>
<div class="temperature">−3<span>°</span></div>
</div>
<p class="description">A little magic in the air.</p>
<div class="card-bottom"><span>H <b>0°</b><span class="low">L <b>−6°</b></span></span><span>SNOW <b>90%</b></span></div>
</div>
</article>
<article class="card stormy">
<div class="card-top">
<div class="condition"><span class="number">04</span><span class="slash">/</span> STORMY</div>
<div class="time">EVENING</div>
</div>
<div class="scene" aria-hidden="true">
<div class="orbit"></div>
<i class="scene-dot" style="--x:14%;--y:35%;--size:4px"></i>
<i class="scene-dot" style="--x:86%;--y:62%;--size:5px"></i>
<i class="scene-dot" style="--x:79%;--y:23%;--size:3px"></i>
<div class="cloud-scene">
<div class="bolt-halo"></div>
<div class="cloud"></div>
<div class="bolt"></div>
</div>
</div>
<div class="weather-info">
<div class="city-row">
<div><p class="location">NEW YORK, USA</p><h2>New York</h2></div>
<div class="temperature">19<span>°</span></div>
</div>
<p class="description">A little thunder rolling in.</p>
<div class="card-bottom"><span>H <b>22°</b><span class="low">L <b>16°</b></span></span><span>WIND <b>18 KM/H</b></span></div>
</div>
</article>
</section>
</main>
<footer class="footer">
<span><strong>SKYWARD</strong> / WEATHER IS A MOOD</span>
<span>DESIGNED FOR EVERY KIND OF DAY</span>
</footer>
</div>
</body>
</html>Reasoning trace (6,978 tokens)
**Designing weather cards** I’m thinking about creating four weather cards. They’d have distinct styles: sunny with a peach/yellow background, rainy with a blue-gray gradient, snowy with pale icy lavender or blue, and stormy featuring deep violet/navy. The text should be legible on all cards. I envision warm oranges and yellows for the sunny card, muted light blue for rainy, very pale blue for snowy, and dark navy for stormy. Each card is 264x375 pixels, fitting well in the layout.**Designing Lightning Effects** I’m aiming to create a visually striking design with multiple bolt layers, using a vivid yellow and white lightning effect. I’ll incorporate CSS pseudo-elements and a clip-path for that polygon shape. I’m thinking a dark purple thunder backdrop with dots for small rain, while keeping the lightning flashes animated using opacity keyframes. I want to design this steadily, so a slow pattern over 3.4 seconds would work best. Consistent visibility and a modern card style are also on my list!**Designing Weather Icon Layout** I'm focusing on a large central icon as the main visual element. For the city weather display, I’ll place it at the bottom left, showing the city name along with the meta information, such as "CALIFORNIA, US." That should make it easy to identify the location. On the right, I’ll add the temperature, setting it at 27°. This layout should provide clarity and ensure users can quickly get the information they need!**Designing mobile layout** I’m working on a mobile layout with a container width of 375. It seems that with a width of 327 for the card, it will be a bit bigger—grid one column is a go! For card height, I’m considering either 390 or using two stacked cards. Between 700-1050, I’ll set up two columns, then switch to one column for max 600. On mobile, I’ll keep cards around 370 or 390 in height, and ensure the user can scroll smoothly!**Evaluating CSS and layout requirements** I need to ensure that reduced-motion settings apply correctly with properties like `animation:none!important;` and `transition:none!important`, and also consider hover effects. For the responsive design, I’m planning to have four cards at widths above 1000px, two between 601 and 1000px, and single stacks below 600px. I’ll use CSS for typography and avoid images while maintaining clarity. I also have city weather data that needs short descriptions, with visual styling included.