/* CalculusHub Date Calculator - plugin CSS (modified for WordPress) */
.ach-main-container *{
    margin:0;padding:0;box-sizing:border-box;font-family:'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
.ach-main-container{background:#ecf0f1;color:#2c3e50;min-height:100vh;padding:20px;line-height:1.6;}
.ach-container{background:#fff;border-radius:10px;box-shadow:0 15px 40px rgba(0,0,0,0.1);width:100%;max-width:1200px;margin:0 auto;overflow:hidden;border:1px solid #ddd;}
.ach-header{background:white;color:#000;padding:30px 20px;text-align:center;position:relative;}
.ach-h1{font-size:2.5rem;margin-bottom:10px;font-weight:700;color:#2c3e50;}
.ach-subtitle{font-size:1.1rem;opacity:0.9;max-width:600px;margin:0 auto;color:#34495e;}
.ach-tabs{display:flex;border-bottom:1px solid #ddd;background:#f8f9fa;}
.ach-tab{flex:1;padding:15px 20px;text-align:center;cursor:pointer;font-weight:600;color:#2c3e50;transition:all 0.3s;border-bottom:3px solid transparent;}
.ach-tab:hover{background:#e9ecef;}
.ach-tab.ach-active{color:#3498db;border-bottom:3px solid #3498db;background:white;}
.ach-tab-content{display:none;padding:30px;}
.ach-tab-content.ach-active{display:block;animation:ach-fadeIn 0.5s;}
@keyframes ach-fadeIn{from{opacity:0;}to{opacity:1;}}
.ach-input-group{margin-bottom:25px;}
.ach-label{display:block;margin-bottom:10px;font-weight:600;color:#2c3e50;font-size:1.1rem;}
.ach-date-inputs{display:flex;gap:10px;}
.ach-select{flex:1;padding:15px;border:2px solid #ddd;border-radius:10px;font-size:1rem;background:#fff;color:#2c3e50;cursor:pointer;}
.ach-select:focus{border-color:#3498db;outline:none;}
.ach-checkbox-group{display:flex;align-items:center;margin-top:10px;}
.ach-checkbox-group .ach-input{margin-right:10px;}
.ach-operation-section{background:#f8f9fa;padding:20px;border-radius:10px;margin-top:10px;}
.ach-operation-row{display:flex;align-items:center;gap:15px;margin-bottom:15px;}
.ach-operation-label{min-width:80px;font-weight:600;color:#2c3e50;}
.ach-number-input{padding:12px;border:2px solid #ddd;border-radius:8px;font-size:1rem;width:100px;text-align:center;}
.ach-number-input:focus{border-color:#3498db;outline:none;}
.ach-operator-select{padding:12px;border:2px solid #ddd;border-radius:8px;font-size:1rem;background:#fff;color:#2c3e50;cursor:pointer;font-weight:bold;width:70px;}
/* Fix: prevent full-width buttons stretching across the page */
.ach-button{background:#2c3e50;color:#fff;border:none;padding:12px 20px;border-radius:10px;font-size:1.05rem;cursor:pointer;transition:transform 0.2s,box-shadow 0.2s;font-weight:600;width:auto;min-width:140px;}
.ach-main-btn{display:inline-flex;align-items:center;gap:8px;}
.ach-button:hover{transform:translateY(-3px);box-shadow:0 7px 20px rgba(0,0,0,0.1);}
.ach-result-section{margin-top:30px;padding:20px;background:#2c3e50;color:#fff;border-radius:15px;text-align:center;display:none;flex-direction:column;justify-content:center;}
.ach-result-section.ach-visible{display:flex;animation:ach-fadeIn 0.5s;}
.ach-result-h2{font-size:1.4rem;color:#fff;margin-bottom:12px;}
.ach-time-result{display:grid;grid-template-columns:1fr;gap:10px;margin-top:12px;}
.ach-time-item{background:rgba(255,255,255,0.15);padding:12px;border-radius:8px;display:flex;justify-content:space-between;align-items:center;}
.ach-time-label{font-size:0.9rem;font-weight:600;}
.ach-time-value{font-size:0.95rem;font-weight:700;}
.ach-action-buttons{display:flex;gap:8px;margin-top:15px;flex-wrap:wrap;}
.ach-action-buttons .ach-button{flex:none;min-width:120px;}
.ach-share-btn{background:#3498db;}
.ach-print-btn{background:#27ae60;}
.ach-other-calculators{background:#f8f9fa;padding:40px 30px;border-top:1px solid #ddd;text-align:center;}
.ach-calculators-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px;max-width:1000px;margin:0 auto;}
.ach-calculator-card{background:#fff;padding:25px;border-radius:10px;box-shadow:0 5px 15px rgba(0,0,0,0.1);transition:transform 0.3s;text-decoration:none;color:inherit;display:block;}
.ach-calculator-card:hover{transform:translateY(-5px);}
.ach-calculator-card .ach-i{font-size:2.5rem;color:#3498db;margin-bottom:15px;}
.ach-seo-content{padding:40px 30px;background:#fff;border-top:1px solid #eee;}
.ach-seo-article{max-width:800px;margin:0 auto;}
.ach-seo-article .ach-h3{color:#3498db;margin:25px 0 15px 0;font-size:1.4rem;}
@media (max-width:768px){.ach-main-container{padding:10px}.ach-container{max-width:100%}.ach-header{padding:20px 15px}.ach-h1{font-size:2rem}.ach-subtitle{font-size:1rem}.ach-tabs{flex-direction:column}.ach-tab-content{padding:20px}.ach-date-inputs{flex-direction:column}.ach-select{width:100%}.ach-operation-row{flex-direction:column;align-items:flex-start;gap:10px}.ach-action-buttons{flex-direction:column}.ach-calculators-grid{grid-template-columns:1fr}.ach-seo-content{padding:30px 20px}}