.bc-container{max-width:600px;margin:40px auto;background:#fff;padding:30px;border-radius:12px;box-shadow:0 15px 40px rgba(0,0,0,0.08);}
.bc-title{text-align:center;font-size:28px;font-weight:bold;margin-bottom:25px;color:#d9534f;}
.bc-row{display:flex;gap:15px;flex-wrap:wrap;margin-bottom:18px;}
.bc-col{flex:1;min-width:200px;}
.bc-input,.bc-select{width:100%;padding:12px;border-radius:6px;border:1px solid #ccc;font-size:16px;}
.bc-btn{width:100%;padding:14px;border:none;border-radius:6px;background:#d9534f;color:#fff;font-size:17px;cursor:pointer;}
.bc-btn:hover{background:#c9302c;}
.bc-result{margin-top:50px;background:#f8f9fb;padding:25px;border-radius:10px;display:none;}
.bc-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:15px;}
.bc-card{background:#fff;padding:15px;border-radius:8px;box-shadow:0 5px 15px rgba(0,0,0,0.05);text-align:center;}
.bc-card strong{display:block;font-size:22px;color:#d9534f;}
.opening-container{margin-top:10px;padding:10px;border:1px dashed #ccc;border-radius:8px;background:#fafafa;}
@media(max-width:768px){.bc-row{flex-direction:column;}}