.bmr-calculator-pro-container {
    max-width: 800px;
    margin: 2rem auto;
    padding: 3rem;
    background: linear-gradient(135deg, #2a1a3e 0%, #1e2a5e 100%);
    border-radius: 25px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5), inset 0 0 15px rgba(255,255,255,0.1);
    color: #fff;
    font-family: 'Segoe UI', sans-serif;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease;
}

.bmr-calculator-pro-container:hover {
    transform: translateY(-5px);
}

.bmr-calculator-pro-container::before {
    content: '';
    position: absolute;
    top: -70px;
    right: -70px;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(0,180,216,0.4), transparent);
    border-radius: 50%;
    z-index: 0;
}

.bmr-calculator-pro-container::after {
    content: '';
    position: absolute;
    bottom: -70px;
    left: -70px;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(255,107,107,0.3), transparent);
    border-radius: 50%;
    z-index: 0;
}

.bmr-calculator-pro-container h2 {
    text-align: center;
    margin-bottom: 2.5rem;
    font-size: 2.5rem;
    font-weight: bold;
    background: linear-gradient(90deg, #00d4ff, #90e0ef);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 3px 8px rgba(0,180,216,0.4);
    z-index: 1;
    position: relative;
}

.bmr-calculator-pro-input-area {
    margin-bottom: 2.5rem;
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.bmr-calculator-pro-input-area input[type="number"],
.bmr-calculator-pro-input-area select {
    width: 100%;
    padding: 1.2rem;
    border-radius: 12px;
    border: 3px solid rgba(144,224,239,0.4);
    background: rgba(255,255,255,0.08);
    color: #fff;
    font-size: 1.1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.bmr-calculator-pro-input-area input[type="number"]:focus,
.bmr-calculator-pro-input-area select:focus {
    border-color: #00d4ff;
    box-shadow: 0 0 15px rgba(0,212,255,0.5);
    outline: none;
}

.bmr-calculator-pro-input-area select {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background: rgba(255,255,255,0.08) url('data:image/svg+xml;utf8,<svg fill="white" height="24" viewBox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"><path d="M7 10l5 5 5-5z"/></svg>') no-repeat right 1rem center;
}

.bmr-calculator-pro-button-container {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    position: relative;
    z-index: 1;
}

.bmr-calculator-pro-button-container button {
    width: 40%;
    padding: 1.2rem;
    border: none;
    border-radius: 12px;
    color: white;
    font-weight: bold;
    font-size: 1.1rem;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

#bmr-calculator-reset-btn {
    background: linear-gradient(90deg, #ff6b6b, #ff8787);
    box-shadow: 0 5px 20px rgba(255,107,107,0.5);
}

#bmr-calculator-reset-btn:hover {
    transform: scale(1.08);
    box-shadow: 0 8px 25px rgba(255,107,107,0.7);
}

#bmr-calculator-print-btn {
    background: linear-gradient(90deg, #00b4d8, #00d4ff);
    box-shadow: 0 5px 20px rgba(0,180,216,0.5);
}

#bmr-calculator-print-btn:hover {
    transform: scale(1.08);
    box-shadow: 0 8px 25px rgba(0,180,216,0.7);
}

.bmr-calculator-pro-results {
    margin-top: 2.5rem;
    position: relative;
    z-index: 1;
}

.bmr-calculator-pro-result-card {
    background: rgba(255,255,255,0.12);
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.3);
}

.bmr-calculator-pro-result-card h3 {
    color: #90e0ef;
    margin-bottom: 2rem;
    font-size: 1.8rem;
    text-shadow: 0 2px 5px rgba(144,224,239,0.3);
}

#bmr-calculator-pro-results-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1.8rem;
}

.bmr-calculator-pro-result-item {
    background: rgba(255,255,255,0.18);
    padding: 1.2rem;
    border-radius: 12px;
    text-align: center;
    transition: transform 0.3s ease, background 0.3s ease;
}

.bmr-calculator-pro-result-item:hover {
    transform: scale(1.06);
    background: rgba(255,255,255,0.25);
}

.bmr-calculator-pro-result-item div:first-child {
    color: #90e0ef;
    font-weight: bold;
    margin-bottom: 0.8rem;
    font-size: 1.1rem;
}

.bmr-calculator-pro-result-item div:last-child {
    color: #fff;
    font-size: 1.2rem;
}

.bmr-calculator-recommendations {
    grid-column: span 2; /* Make the recommendations span two columns */
}

.bmr-calculator-error div:first-child {
    color: #ff6b6b;
}

.bmr-calculator-error div:last-child {
    color: #ff8787;
}

/* Mobile Responsiveness */
@media (max-width: 600px) {
    .bmr-calculator-pro-container {
        margin: 1rem;
        padding: 2rem;
    }

    .bmr-calculator-pro-container h2 {
        font-size: 2rem;
    }

    .bmr-calculator-pro-input-area {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .bmr-calculator-pro-input-area input[type="number"],
    .bmr-calculator-pro-input-area select {
        font-size: 1rem;
        padding: 1rem;
    }

    .bmr-calculator-pro-button-container {
        flex-direction: column;
        gap: 1rem;
    }

    .bmr-calculator-pro-button-container button {
        width: 80%;
    }

    .bmr-calculator-pro-result-card {
        padding: 1.5rem;
    }

    .bmr-calculator-pro-result-card h3 {
        font-size: 1.5rem;
    }

    .bmr-calculator-pro-result-item div:last-child {
        font-size: 1.3rem;
    }

    .bmr-calculator-recommendations {
        grid-column: span 1; /* On mobile, recommendations take one column */
    }
}