/* 근·관·돈 계산기 전용 스타일 (공통 style.css 이후 로드) */

.hidden { display: none; }

/* ===== 입력 영역: 세로 공간 줄이기 ===== */
.input-grid{
    display: grid;
    grid-template-columns: 1.2fr 0.9fr 1fr;
    gap: 12px;
    margin-top: 10px;
}

.field label{
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
}

.unit-gram-wrap{
    position: relative;
}

.unit-gram-wrap input{
    padding-right: 34px;
}

.unit-gram-wrap .suffix{
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 12px;
    color: #6b7280;
}

.mini-hint{
    margin-top: 6px;
    font-size: 12px;
    color: #6b7280;
}

/* ===== 근 옵션: 근일 때만 보이기 + 높이 최소화 ===== */
.geun-options{
    margin-top: 12px;
    padding: 12px;
    border-radius: 12px;
    background: #f9fafb;
    border: 1px solid #e5e7eb;
}

.geun-head{
    margin-bottom: 10px;
}

.geun-title{
    font-weight: 800;
    font-size: 14px;
    color: #111827;
    margin-bottom: 6px;
}

.geun-sub{
    font-size: 12px;
    color: #6b7280;
    line-height: 1.5;
}

/* ✅ 3칸 그리드(모바일은 자동 2칸) */
.preset-grid{
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
    margin-top: 10px;
}

.preset-btn{
    padding: 10px 10px;
    border-radius: 12px;
    border: 1px solid #e5e7eb;
    background: #fff;
    cursor: pointer;
    font-size: 13px;
    font-weight: 700;
    color: #111827;
    line-height: 1.2;
}

.preset-btn:hover{
    background: #eef2ff;
}

.hint{
    margin-top: 10px;
    color: #6b7280;
}

/* 버튼 행 */
.btn-row{
    display:flex;
    gap:8px;
    flex-wrap:wrap;
    margin-top: 12px;
}

button.secondary{
    background:#f3f4f6;
    color:#111827;
}

button.secondary:hover{
    background:#e5e7eb;
}

/* 결과 카드 */
.result-grid{
    margin-top: 14px;
    display:grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap:10px;
}

.result-card{
    border:1px solid #e5e7eb;
    border-radius:12px;
    padding:10px 12px;
    background:#fff;
}

.result-card .label{
    font-size:12px;
    color:#6b7280;
    margin-bottom:4px;
}

.result-card .value{
    font-size:16px;
    font-weight:800;
    color:#111827;
}

/* ===== 설명/FAQ ===== */
.info-section,
.faq-section{
    max-width:720px;
    margin:40px auto 0;
    padding:0 16px;
}

.info-section h2,
.faq-section h2{
    font-size:22px;
    font-weight:800;
    margin-bottom:16px;
}

.info-section p{
    margin-bottom:12px;
    line-height:1.7;
    color:#444;
    font-size:14px;
}

.info-list{
    margin: 8px 0 14px;
    padding-left: 18px;
    font-size: 14px;
    color: #444;
}
.info-list li{ margin-bottom:3px; }

.faq-item{
    border-bottom:1px solid #e0e0e0;
    padding:6px 0;
}

.faq-question{
    position:relative;
    width:100%;
    background:#f9fafb;
    border:none;
    text-align:left;
    padding:10px 12px 10px 30px;
    font-size:15px;
    font-weight:700;
    cursor:pointer;
    line-height:1.4;
    color:#111827;
    border-radius:8px;
}

.faq-question::before{
    content:"▶";
    position:absolute;
    left:10px;
    top:50%;
    transform:translateY(-50%);
    font-size:11px;
    color:#6b7280;
}

.faq-item.active .faq-question::before{ content:"▼"; }

.faq-question:hover{ background:#eef2ff; }

.faq-question:focus{
    outline:none;
    box-shadow:0 0 0 2px rgba(37,99,235,0.35);
}

.faq-answer{
    display:none;
    padding:6px 2px 12px;
    color:#555;
    font-size:14px;
    line-height:1.7;
}

.faq-item.active .faq-answer{ display:block; }

.page-wrapper .footer-text{ margin-top:28px; }

/* ===== 모바일 대응 ===== */
@media (max-width: 720px){
    .input-grid{
        grid-template-columns: 1fr 1fr;
    }
    /* 3번째(1단위 g)는 다음 줄로 */
    .input-grid .field:nth-child(3){
        grid-column: 1 / -1;
    }

    .preset-grid{
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .result-grid{
        grid-template-columns: 1fr;
    }

    .info-section,
    .faq-section{
        margin-top:32px;
        padding:0 12px;
    }

    .info-section h2,
    .faq-section h2{
        font-size:20px;
    }

    .faq-question{
        font-size:14px;
        padding:9px 10px 9px 28px;
    }

    .info-section p,
    .faq-answer,
    .info-list{
        font-size:13px;
    }
}