body { font-family: sans-serif; max-width: 1440px; margin: 20px auto; padding: 0 20px; line-height: 1.6; }
.container { background: #f9f9f9; padding: 20px; border-radius: 8px; border: 1px solid #ddd; }
h1, h2, h3 { color: #2c3e50; }
h1 { text-align: center; border-bottom: 2px solid #eee; padding-bottom: 15px; }
.form-group { margin-bottom: 15px; }
label { display: block; margin-bottom: 5px; font-weight: bold; }
input[type="number"] { width: 100%; padding: 8px; box-sizing: border-box; border: 1px solid #ccc; border-radius: 4px; }
.btn, button { background-color: #28a745; color: white; padding: 10px 15px; border: none; border-radius: 4px; cursor: pointer; font-size: 16px; }
.btn, button:hover { background-color: #218838; }
a.btn{text-decoration: none;}
.result-box { margin-top: 20px; padding: 15px; background: #e9ecef; border-left: 5px solid #007bff; }
.error-box { margin-top: 20px; padding: 15px; background: #f8d7da; border-left: 5px solid #dc3545; color: #721c24; }
.result-row { display: flex; justify-content: space-between; border-bottom: 1px solid #ccc; padding: 5px 0; }
.result-row:last-child { border-bottom: none; font-weight: bold; }
.result-final { margin-top: 15px; padding-top: 15px; border-top: 2px dashed #ccc; font-size: 1.2em; color: #28a745; font-weight: bold; text-align: center; }
.m-top-10{margin-top: 25px;}
.btn-blue{background-color: #007BFF;}
.big-text { font-size: 1.4em; color: #d35400; font-weight: bold; display: block; text-align: center; margin-top: 10px; }
.box { border: 1px solid #ccc; padding: 15px; margin-bottom: 20px; border-radius: 5px; }
.msg { background: #f0f0f0; padding: 10px; border-left: 4px solid #007bff; margin-bottom: 10px; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 20px; margin-bottom: 20px; }
.form-group label { display: block; font-weight: bold; margin-bottom: 5px; color: #555; }
.form-group input { width: 100%; padding: 10px; border: 1px solid #ccc; border-radius: 5px; font-size: 16px; }
.section { margin-top: 30px; padding: 20px; background: #fff; border: 1px solid #e1e1e1; border-radius: 8px; }
.highlight-box { background: #e8f6f3; border-left: 5px solid #1abc9c; padding: 15px; margin: 10px 0; font-family: monospace; font-size: 1.1em; }
table { width: 100%; border-collapse: collapse; margin-top: 15px; }
th, td { padding: 12px; text-align: left; border-bottom: 1px solid #ddd; }
th { background-color: #f8f9fa; font-weight: bold; color: #555; }
tr:hover { background-color: #f1f1f1; }
.key-var { color: #e74c3c; font-weight: bold; }
.group-flex{display: flex; gap: 20px; flex-wrap: wrap; align-items: center; justify-content: center; }
.title-center{ text-align: center;}
.block-width-fx{align-items: center; display: flex; flex-wrap: wrap; flex-direction: column; max-width: 600px; gap: 20px; margin: 0 auto;}