*{
    box-sizing:border-box;
}

.arzt-app{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    position:relative;
    font-family:Arial,Helvetica,sans-serif;
}

/* Search */

#arzt-search{
    width:100%;
    padding:10px 12px;
    font-size:14px;
    border:1px solid #e5e7eb;
    border-radius:8px;
    outline:none;
    background:#fff;
    transition:.2s;
}

#arzt-search:focus{
    border-color:#2563eb;
    box-shadow:0 0 0 2px rgba(37,99,235,.1);
}

/* Suggestions */

#arzt-suggestions{
    width:100%;
    margin-top:4px;
    background:#fff;
    border:1px solid #e5e7eb;
    border-radius:8px;
    overflow:hidden;
    box-shadow:0 6px 16px rgba(15,23,42,.04);
}

.arzt-item{
    padding:8px 12px;
    cursor:pointer;
    border-bottom:1px solid #f3f4f6;
    transition:background .15s ease;
}

.arzt-item:last-child{
    border-bottom:none;
}

.arzt-item:hover{
    background:#f8faff;
}

.arzt-item strong{
    display:block;
    margin:0 0 3px;
    font-size:13px;
    font-weight:600;
    line-height:1.25;
    color:#111827;
}

.arzt-item small{
    display:block;
    margin:0;
    font-size:11px;
    line-height:1.4;
    color:#6b7280;
}

.arzt-item p,
.arzt-item div,
.arzt-item span{
    margin:0;
    padding:0;
    line-height:1.4;
}

/* Calculator */

#calculator-container{
    margin-top:18px;
}

.arzt-calculator{
    background:#fff;
    border:1px solid #eceff3;
    border-radius:10px;
    padding:22px;
    box-shadow:0 6px 18px rgba(15,23,42,.04);
}

/* Layout */

.arzt-calculator-layout{
    display:grid;
    grid-template-columns:minmax(0,1fr) 280px;
    gap:24px;
    align-items:start;
}

.arzt-calculator-left{
    min-width:0;
    max-width:760px;
}

.arzt-calculator-right{
    position:sticky;
    top:20px;
    align-self:start;
    display:flex;
    flex-direction:column;
    gap:12px;
}

/* Header */

.arzt-calculator h2{
    margin:0;
    font-size:24px;
    line-height:1.2;
    color:#111827;
}

.arzt-calculator>p,
.arzt-calculator-left>p{
    margin:6px 0 0;
    font-size:13px;
    line-height:1.5;
    color:#6b7280;
}

/* Fields */

.arzt-fields{
    margin-top:8px;
}

.arzt-field{
    margin-bottom:10px;
    padding-bottom:8px;
    border-bottom:1px solid #f3f4f6;
}

.arzt-field:last-child{
    margin-bottom:0;
    padding-bottom:0;
    border-bottom:none;
}

.arzt-field>label{
    display:block;
    margin-bottom:5px;
    font-size:13px;
    line-height:1.2;
    font-weight:600;
    color:#1f2937;
}

.arzt-field input[type=text],
.arzt-field input[type=number],
.arzt-field textarea,
.arzt-field select{
    width:100%;
    padding:8px 10px;
    font-size:14px;
    border:1px solid #dfe3e8;
    border-radius:7px;
    outline:none;
    background:#fff;
    transition:.2s;
}

.arzt-field textarea{
    min-height:90px;
    resize:vertical;
}

.arzt-field input[type=text]:focus,
.arzt-field input[type=number]:focus,
.arzt-field textarea:focus,
.arzt-field select:focus{
    border-color:#2563eb;
    box-shadow:0 0 0 2px rgba(37,99,235,.08);
}

.arzt-field label{
    line-height:1.3;
}

.arzt-field br{
    display:none;
}

/* Options */

.arzt-options{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(180px,1fr));
    gap:8px;
    margin-top:6px;
}

.arzt-option{
    flex:1 1 180px;
    min-height:40px;

    display:flex;
    align-items:center;
    gap:10px;

    padding:8px 10px;

    border:1px solid #d9e2ec;
    border-radius:8px;

    background:#fff;

    cursor:pointer;
    transition:.2s;
}

.arzt-option:hover{
    border-color:#2563eb;
    background:#f8fbff;
}

.arzt-option input{
    margin:0;
    flex-shrink:0;
    transform:scale(.9);
}

.arzt-option span{
    font-size:13px;
    line-height:1.2;
}

.arzt-option:has(input:checked){
    border-color:#2563eb;
    background:#eef5ff;
}

/* Buttons */

#calculate-btn,
#reset-btn{
    width:100%;
    padding:12px;
    border:none;
    border-radius:8px;
    font-size:14px;
    font-weight:600;
    cursor:pointer;
    transition:.2s;
}

#calculate-btn{
    background:#2563eb;
    color:#fff;
}

#calculate-btn:hover{
    background:#1d4ed8;
}

#reset-btn{
    background:#f3f4f6;
    color:#374151;
    border:1px solid #d1d5db;
}

#reset-btn:hover{
    background:#e5e7eb;
}

/* Result */

#result{
    margin-top:0;
    padding:16px;
    background:#fafcff;
    border:1px solid #e5e7eb;
    border-radius:10px;
    text-align:center;
}

#result h3{
    margin:0;
    font-size:13px;
    font-weight:600;
    color:#6b7280;
}

#result h1{
    margin:8px 0;
    font-size:40px;
    font-weight:700;
    line-height:1.1;
    color:#2563eb;
}

#result p{
    margin:0;
    font-size:13px;
    line-height:1.5;
    color:#4b5563;
}

.arzt-result-range{
    display:flex;
    flex-direction:column;
    gap:4px;
    margin:10px 0 16px;
    padding:10px 12px;
    background:#f8fafc;
    border:1px solid #e5e7eb;
    border-radius:8px;
    text-align:left;
}

.arzt-result-range span{
    display:flex;
    justify-content:space-between;
    align-items:center;
    font-size:12px;
    line-height:1.35;
    color:#4b5563;
}

.arzt-result-range strong{
    font-size:12px;
    font-weight:600;
    color:#111827;
}

/* Mobile */

@media(max-width:768px){

    .arzt-calculator{
        padding:14px;
    }

    .arzt-calculator-layout{
        grid-template-columns:1fr;
        gap:20px;
    }

    .arzt-calculator-left{
        max-width:100%;
    }

    .arzt-calculator-right{
        position:static;
    }

    .arzt-calculator h2{
        font-size:20px;
    }

    .arzt-field{
        margin-bottom:10px;
        padding-bottom:8px;
    }

    #arzt-search,
    .arzt-field input[type=text],
    .arzt-field input[type=number],
    .arzt-field textarea,
    .arzt-field select{
        font-size:13px;
    }

    #calculate-btn,
    #reset-btn{
        padding:10px;
        font-size:13px;
    }

    #result{
        padding:14px;
    }

    #result h1{
        font-size:32px;
    }

    .arzt-item{
        padding:7px 10px;
    }

    .arzt-item strong{
        font-size:12px;
    }

    .arzt-item small{
        font-size:10px;
    }

    .arzt-option{
        flex:1 1 180px;
    }

}