Changed around line 1
+ :root {
+ --primary-color: #4CAF50;
+ --secondary-color: #388E3C;
+ --background-color: #F5F5F5;
+ --text-color: #333;
+ --card-bg: #FFFFFF;
+ --shadow: 0 2px 4px rgba(0,0,0,0.1);
+ }
+
+ body {
+ font-family: 'Segoe UI', sans-serif;
+ line-height: 1.6;
+ color: var(--text-color);
+ background-color: var(--background-color);
+ margin: 0;
+ padding: 0;
+ }
+
+ header {
+ background: var(--primary-color);
+ color: white;
+ padding: 2rem;
+ text-align: center;
+ }
+
+ h1 {
+ margin: 0;
+ font-size: 2.5rem;
+ }
+
+ p {
+ margin: 0.5rem 0;
+ }
+
+ main {
+ max-width: 1200px;
+ margin: 2rem auto;
+ padding: 0 1rem;
+ }
+
+ .calculator {
+ background: var(--card-bg);
+ padding: 2rem;
+ border-radius: 8px;
+ box-shadow: var(--shadow);
+ margin-bottom: 2rem;
+ }
+
+ .form-group {
+ margin-bottom: 1rem;
+ }
+
+ label {
+ display: block;
+ margin-bottom: 0.5rem;
+ }
+
+ input {
+ width: 100%;
+ padding: 0.5rem;
+ border: 1px solid #ddd;
+ border-radius: 4px;
+ }
+
+ button {
+ background: var(--secondary-color);
+ color: white;
+ padding: 0.75rem 1.5rem;
+ border: none;
+ border-radius: 4px;
+ cursor: pointer;
+ transition: background 0.3s;
+ }
+
+ button:hover {
+ background: #2E7D32;
+ }
+
+ .result {
+ margin-top: 1rem;
+ padding: 1rem;
+ background: #E8F5E9;
+ border-radius: 4px;
+ }
+
+ .strategies {
+ margin-top: 2rem;
+ }
+
+ .strategy-grid {
+ display: grid;
+ grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
+ gap: 1rem;
+ }
+
+ .strategy {
+ background: var(--card-bg);
+ padding: 1.5rem;
+ border-radius: 8px;
+ box-shadow: var(--shadow);
+ }
+
+ footer {
+ text-align: center;
+ padding: 1rem;
+ background: var(--primary-color);
+ color: white;
+ margin-top: 2rem;
+ }
+
+ @media (max-width: 768px) {
+ h1 {
+ font-size: 2rem;
+ }
+ }