/* Global CSS for all Calculators */
:root {
    --ikh-primary: #0073aa;
    --ikh-primary-hover: #005177;
    --ikh-bg: #ffffff;
    --ikh-text: #2c3e50;
    --ikh-border: #e0e0e0;
    --ikh-radius: 12px;
    --ikh-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
}

.ikh-calculator-container {
    max-width: 700px;
    margin: 30px auto;
    padding: 0;
    border-radius: var(--ikh-radius);
    box-shadow: var(--ikh-shadow);
    background: var(--ikh-bg);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    overflow: hidden;
    border: 1px solid var(--ikh-border);
}

/* Header Styles */
.ikh-header {
    background: #f8f9fa;
    padding: 30px 20px;
    text-align: center;
    border-bottom: 1px solid var(--ikh-border);
}

.ikh-header h2 {
    margin: 0;
    font-size: 26px;
    color: var(--ikh-text);
    font-weight: 700;
}

.ikh-header p {
    margin: 10px 0 0;
    font-size: 15px;
    color: #666;
}

/* Form Styles */
.ikh-form {
    padding: 30px;
}

.ikh-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

@media (max-width: 600px) {
    .ikh-form-row {
        grid-template-columns: 1fr;
    }
}

.ikh-form-group {
    margin-bottom: 20px;
}

.ikh-form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 15px;
    color: #444;
}

.ikh-form-group input,
.ikh-form-group select {
    width: 100%;
    padding: 12px 15px;
    border: 1.5px solid var(--ikh-border);
    border-radius: 8px;
    font-size: 16px;
    transition: all 0.3s;
    box-sizing: border-box;
    background-color: #fff;
    color: #333;
}

.ikh-form-group input:focus,
.ikh-form-group select:focus {
    border-color: var(--ikh-primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 115, 170, 0.1);
}

/* Button Styles */
.ikh-button-group {
    display: flex;
    gap: 15px;
    margin-top: 10px;
}

.ikh-btn-calculate {
    flex: 2;
    background: var(--ikh-primary);
    color: #fff;
    border: none;
    padding: 15px;
    font-size: 18px;
    font-weight: 700;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 12px rgba(0, 115, 170, 0.2);
}

.ikh-btn-calculate:hover {
    background: var(--ikh-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(0, 115, 170, 0.3);
}

.ikh-btn-clear {
    flex: 1;
    background: #f1f3f5;
    color: #495057;
    border: 1px solid #dee2e6;
    padding: 15px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s;
}

.ikh-btn-clear:hover {
    background: #e9ecef;
}

@media (max-width: 480px) {
    .ikh-button-group {
        flex-direction: column;
    }
}

/* Result Styles */
.ikh-result-container {
    padding: 30px;
    background: #fcfcfc;
    border-top: 1px solid var(--ikh-border);
    animation: ikhFadeUp 0.5s ease-out;
}

@keyframes ikhFadeUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.ikh-result-header {
    font-size: 18px;
    font-weight: 700;
    color: var(--ikh-primary);
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-align: center;
}

.ikh-result-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

.ikh-result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 15px;
    background: #fff;
    border-radius: 8px;
    border: 1px solid #f0f0f0;
}

.ikh-result-item.highlight {
    background: #e8f4fd;
    border-color: #b3d7f1;
}

.ikh-res-label {
    font-weight: 600;
    color: #555;
}

.ikh-res-value {
    font-weight: 800;
    color: var(--ikh-text);
    font-size: 17px;
}

.ikh-result-item.highlight .ikh-res-value {
    color: var(--ikh-primary);
    font-size: 20px;
}

.ikh-disclaimer {
    margin-top: 20px;
    font-size: 13px;
    color: #888;
    font-style: italic;
    text-align: center;
}