/* BMI Calculator Specific Styles */

.bmi-calculator-container {
    max-width: 550px;
    margin: 0 auto;
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: 16px;
    border: 1px solid var(--card-border);
}

/* Tabs */
.unit-tabs {
    display: flex;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    margin-bottom: 2rem;
    overflow: hidden;
}

.tab-link {
    flex: 1;
    padding: 1rem;
    background: none;
    border: none;
    color: var(--text-color-light);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.3s ease;
}

.tab-link.active {
    background: var(--primary-color);
    color: #fff;
}

.input-section {
    display: none;
    flex-direction: column;
    gap: 1.5rem;
}

.input-section.active {
    display: flex;
}

.form-group {
    width: 100%;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.75rem;
}

.input-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.result-section {
    visibility: hidden;
    opacity: 0;
    margin-top: 2.5rem;
    padding-top: 2.5rem;
    border-top: 1px solid var(--card-border);
    text-align: center;
    transition: opacity 0.5s ease-in-out;
}

.result-section.show {
    visibility: visible;
    opacity: 1;
}

.your-bmi-text {
    color: var(--text-color-light);
    font-size: 1.1rem;
    margin: 0;
}

.bmi-value {
    font-size: 4rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0.5rem 0;
}

.bmi-category {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0 0 2.5rem 0;
}

.bmi-gauge {
    position: relative;
    width: 100%;
    height: 12px;
    background: linear-gradient(to right, #3b82f6, #22c55e, #f59e0b, #ef4444);
    border-radius: 10px;
    margin-bottom: 0.75rem;
}

.bmi-indicator {
    position: absolute;
    top: -6px;
    /* Center it on the bar */
    left: 0;
    /* Positioned by JS */
    width: 24px;
    height: 24px;
    background-color: #fff;
    border-radius: 50%;
    border: 3px solid var(--bg-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    transform: translateX(-50%);
    transition: left 0.5s ease;
}

.gauge-labels {
    position: relative;
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-color-light);
    padding: 0 5%;
}

.gauge-labels span:nth-child(1) {
    position: absolute;
    left: 30%;
    transform: translateX(-50%);
}

.gauge-labels span:nth-child(2) {
    position: absolute;
    left: 55%;
    transform: translateX(-50%);
}

.gauge-labels span:nth-child(3) {
    position: absolute;
    left: 75%;
    transform: translateX(-50%);
}