/* BowTuning - Calculateurs KE & FOC
   Design initial : carte blanche, cadre, ombre légère, bandeau vert haut */

.ke-card {
    max-width: 850px;
    margin: 40px auto;
    padding: 35px;
    background: #ffffff;
    border-top: 6px solid #35C493;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0,0,0,.08);
    box-sizing: border-box;
}

.ke-card h3 {
    text-align: center;
    color: #35C493;
    font-weight: 700;
    margin: 0 0 20px 0;
    line-height: 1.3;
}

.ke-intro {
    text-align: center;
    margin-bottom: 30px;
    color: #666;
}

.ke-form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.ke-field label,
.ke-slider-field label {
    display: block;
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
}

.ke-field input {
    width: 100%;
    height: 52px;
    font-size: 18px;
    padding: 10px 12px;
    border: 1px solid #ced4da;
    border-radius: 6px;
    background: #fff;
    box-sizing: border-box;
}

.ke-field input:focus {
    outline: none;
    border-color: #35C493;
    box-shadow: 0 0 0 .2rem rgba(53,196,147,.25);
}

.ke-results {
    margin-top: 35px;
    display: grid;
    gap: 20px;
}

.ke-result {
    background: #f7f7f7;
    border-left: 5px solid #35C493;
    border-radius: 8px;
    padding: 18px 22px;
}

.ke-label {
    display: block;
    font-size: 15px;
    color: #666;
    margin-bottom: 5px;
}

.ke-value {
    display: block;
    font-size: 32px;
    font-weight: 700;
    color: #222;
    line-height: 1.2;
}

.ke-helper {
    display: block;
    margin-top: 8px;
    font-size: 14px;
    color: #666;
}

.ke-slider-field {
    margin-bottom: 26px;
}

.ke-slider-row {
    display: flex;
    justify-content: space-between;
    gap: 15px;
    align-items: center;
    margin-bottom: 8px;
}

.ke-slider-value {
    font-weight: 700;
    color: #222;
    white-space: nowrap;
}

.foc-slider {
    width: 100%;
    accent-color: #35C493;
}

.foc-slider::-webkit-slider-thumb {
    background: #35C493;
}

.foc-slider::-moz-range-thumb {
    background: #35C493;
    border: none;
}

.bt-responsive-img {
    max-width: 100%;
    height: auto;
}

.bt-page-intro {
    text-align: justify;
}

.bt-info-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin: 25px 0;
}

.bt-info-box {
    background: #f7f7f7;
    border-left: 5px solid #35C493;
    border-radius: 8px;
    padding: 16px 18px;
}

.bt-table-wrap {
    overflow-x: auto;
    margin: 20px 0 35px;
}

.bt-note {
    max-width: 850px;
    margin: 20px auto 35px;
    padding: 15px 18px;
    background: #f7f7f7;
    border-left: 5px solid #35C493;
    border-radius: 8px;
    color: #555;
}

@media (max-width: 768px) {
    .ke-card {
        margin: 30px 0;
        padding: 24px 18px;
    }

    .ke-form-grid,
    .bt-info-grid {
        grid-template-columns: 1fr;
    }

    .ke-value {
        font-size: 28px;
    }
}