.container { padding-top: 20px; }
.jumbotron .row { padding-bottom: 20px; font-size: 14px; }
.jumbotron p { font-size: 15px; }
.jumbotron .form-group label { font-weight: bold; }

/* 결과 박스 */
.result-box {
    padding: 20px;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    margin-top: 10px;
    background: #fafafa;
}
.vo2max-value {
    font-size: 40px;
    font-weight: bold;
    color: #e74c3c;
    margin: 10px 0;
}
.vo2max-value small {
    font-size: 16px;
    color: #888;
}
.grade-text {
    font-size: 20px;
    color: #e74c3c;
}
.grade-매우우수 { color: #27ae60; }
.grade-우수     { color: #2980b9; }
.grade-보통     { color: #f39c12; }
.grade-미흡     { color: #e67e22; }
.grade-노력필요 { color: #c0392b; }

.grade-desc {
    font-size: 14px;
    color: #555;
    margin: 8px 0 15px;
}
.progress {
    height: 26px;
    border-radius: 4px;
}
.progress-bar {
    line-height: 26px;
    font-size: 14px;
    font-weight: bold;
}

/* 탭 */
.tab-content {
    min-height: 200px;
    background: #fff;
    padding: 15px;
    border: 1px solid #ddd;
    border-top: none;
    border-radius: 0 0 4px 4px;
}

/* 등급표 */
.grade-table-title {
    font-weight: bold;
    margin-bottom: 8px;
}
.grade-table { font-size: 14px; }
.active-grade {
    background-color: #fcf8e3;
    font-weight: bold;
}

/* SNS 공유 */
.roundborder {
    width: 99%;
    border-style: solid;
    border-width: 1px;
    border-radius: 5px;
    padding: 15px;
    border-color: #fcb700;
    margin-top: 20px;
}

/* doc/info 페이지 */
.info-section { margin-bottom: 30px; }
.info-section h3 { border-bottom: 2px solid #e74c3c; padding-bottom: 6px; margin-bottom: 14px; }
.formula-box {
    background: #f4f4f4;
    border-left: 4px solid #e74c3c;
    padding: 12px 16px;
    font-size: 16px;
    font-family: monospace;
    border-radius: 0 4px 4px 0;
    margin: 10px 0;
}
.vo2max-table th { background-color: #e74c3c; color: #fff; text-align: center; vertical-align: middle; }
.vo2max-table td { font-size: 13px; text-align: center; vertical-align: middle; }