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Merge pull request '[TSC-4] Implement responsive CSS layout and styling' (#1) from ssmp/tsc-4-r2 into main

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Reviewed-on: https://gitea.scopicsoftware.com/scopic-software/test-simple-calculator/pulls/1
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Viet-Anh Nguyen 2026-07-08 06:33:02 +00:00
commit b6dd764c87
3 changed files with 268 additions and 0 deletions
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1
CLAUDE.md
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@ -7,6 +7,7 @@ Greenfield project. Implementation is driven by the Vexa AI-SDLC pipeline (Jira
``` ```
/ /
├── index.html # Calculator UI (semantic HTML5) ├── index.html # Calculator UI (semantic HTML5)
├── styles.css # Responsive CSS layout and styling
├── README.md # Project overview ├── README.md # Project overview
└── CLAUDE.md # This file └── CLAUDE.md # This file
``` ```

1
index.html
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@ -4,6 +4,7 @@
<meta charset="UTF-8"> <meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Simple Calculator</title> <title>Simple Calculator</title>
<link rel="stylesheet" href="styles.css">
</head> </head>
<body> <body>
<main> <main>

266
styles.css Normal file
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@ -0,0 +1,266 @@
/* ===== Reset & Base ===== */
*, *::before, *::after {
box-sizing: border-box;
margin: 0;
padding: 0;
}
body {
font-family: system-ui, -apple-system, sans-serif;
font-size: 1rem;
line-height: 1.5;
color: #1a1a1a;
background-color: #f0f2f5;
min-height: 100vh;
display: flex;
align-items: flex-start;
justify-content: center;
padding: 1rem;
}
/* ===== Main container ===== */
main {
background: #ffffff;
border-radius: 8px;
box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
padding: 1.5rem;
width: 100%;
max-width: 480px;
display: flex;
flex-direction: column;
gap: 1.5rem;
}
/* ===== Typography hierarchy ===== */
h1 {
font-size: 1.75rem;
font-weight: 700;
color: #1a1a1a;
text-align: center;
}
h2 {
font-size: 1.125rem;
font-weight: 600;
color: #1a1a1a;
margin-bottom: 0.5rem;
}
/* ===== Form ===== */
#calculator-form {
display: flex;
flex-direction: column;
gap: 1.25rem;
}
fieldset {
border: 1px solid #d0d0d0;
border-radius: 6px;
padding: 1rem;
}
legend {
font-size: 0.9375rem;
font-weight: 600;
color: #1a1a1a;
padding: 0 0.5rem;
}
fieldset > div + div {
margin-top: 1rem;
}
/* ===== Labels & Inputs ===== */
label {
display: block;
font-size: 0.9375rem;
font-weight: 500;
color: #1a1a1a;
margin-bottom: 0.375rem;
}
input[type="number"] {
display: block;
width: 100%;
min-height: 44px;
padding: 0.625rem 0.75rem;
border: 2px solid #767676;
border-radius: 4px;
font-size: 1rem;
color: #1a1a1a;
background: #ffffff;
-moz-appearance: textfield;
appearance: textfield;
}
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
-webkit-appearance: none;
}
input[type="number"]:focus {
outline: 3px solid #1565c0;
outline-offset: 1px;
border-color: #1565c0;
}
/* ===== Operation buttons ===== */
[role="group"] {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 0.5rem;
}
button[name="operation"] {
min-height: 44px;
min-width: 44px;
padding: 0.625rem 0.5rem;
border: 2px solid #767676;
border-radius: 4px;
background: #f5f5f5;
color: #1a1a1a;
font-size: 0.9375rem;
font-weight: 500;
cursor: pointer;
transition: background-color 0.15s, border-color 0.15s, color 0.15s;
}
button[name="operation"]:hover {
background: #e0e0e0;
border-color: #1565c0;
}
button[name="operation"][aria-pressed="true"] {
background: #1565c0;
border-color: #1565c0;
color: #ffffff;
}
button[name="operation"]:focus-visible {
outline: 3px solid #1565c0;
outline-offset: 2px;
}
/* ===== Action buttons (Calculate / Clear) ===== */
#calculator-form > div {
display: flex;
gap: 0.75rem;
}
#calculate-btn,
#clear-btn {
flex: 1;
min-height: 44px;
min-width: 44px;
padding: 0.625rem 1rem;
border: 2px solid transparent;
border-radius: 4px;
font-size: 1rem;
font-weight: 600;
cursor: pointer;
transition: background-color 0.15s;
}
#calculate-btn {
background: #1565c0;
color: #ffffff;
}
#calculate-btn:hover {
background: #0d47a1;
}
#clear-btn {
background: #f5f5f5;
color: #1a1a1a;
border-color: #767676;
}
#clear-btn:hover {
background: #e0e0e0;
}
#calculate-btn:focus-visible,
#clear-btn:focus-visible {
outline: 3px solid #1565c0;
outline-offset: 2px;
}
/* ===== Result section ===== */
section:first-of-type {
border: 1px solid #d0d0d0;
border-radius: 6px;
padding: 1rem;
background: #f8f9fa;
}
#result {
display: block;
font-size: 1.5rem;
font-weight: 700;
color: #1a1a1a;
min-height: 2rem;
}
/* ===== Error section ===== */
#error-message {
font-size: 0.9375rem;
font-weight: 500;
color: #c62828;
min-height: 1.25rem;
}
/* ===== Tablet (768px+) ===== */
@media (min-width: 768px) {
body {
padding: 2rem;
align-items: center;
}
main {
padding: 2rem;
gap: 2rem;
}
h1 {
font-size: 2rem;
}
fieldset > div {
display: flex;
align-items: center;
gap: 1rem;
}
fieldset > div + div {
margin-top: 0.75rem;
}
fieldset > div label {
flex: 0 0 140px;
margin-bottom: 0;
}
fieldset > div input {
flex: 1;
}
[role="group"] {
grid-template-columns: repeat(4, 1fr);
}
}
/* ===== Desktop (1024px+) ===== */
@media (min-width: 1024px) {
main {
max-width: 560px;
}
h1 {
font-size: 2.25rem;
}
#result {
font-size: 1.75rem;
}
}