/* Main Container */
.fmc-calculator-container {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    background-color: #ffffff;
    padding: 25px;
    border-radius: 12px;
    border: 1px solid #e0e0e0;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    max-width: 900px;
    margin: 20px auto;
}

.fmc-inputs-column, .fmc-results-column {
    flex: 1;
    min-width: 300px;
}

/* Typography */
.fmc-title {
    font-size: 1.5em;
    color: #2c3e50;
    margin-top: 0;
    margin-bottom: 20px;
    border-bottom: 2px solid #3498db;
    padding-bottom: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.fmc-subtitle {
    font-size: 1.2em;
    color: #34495e;
    margin-top: 25px;
    margin-bottom: 15px;
    border-bottom: 1px solid #bdc3c7;
    padding-bottom: 5px;
}

/* Form Groups */
.fmc-form-group {
    margin-bottom: 18px;
}
.fmc-form-group label {
    display: block;
    font-weight: 600;
    color: #555;
    margin-bottom: 6px;
    font-size: 0.9em;
}

/* Inputs */
.fmc-form-group input[type="number"] {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 6px;
    box-sizing: border-box;
    font-size: 1em;
    transition: border-color 0.3s, box-shadow 0.3s;
}
.fmc-form-group input[type="number"]:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

/* Radio Groups */
.fmc-radio-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    background-color: #f8f9fa;
    padding: 10px;
    border-radius: 6px;
}
.fmc-radio-group label {
    font-weight: normal;
    display: flex;
    align-items: center;
    cursor: pointer;
    margin-bottom: 0;
}
.fmc-radio-group input[type="radio"] {
    margin-right: 8px;
}
.fmc-unit-switcher {
    flex-direction: row;
    justify-content: space-around;
}


/* Info Tooltip */
.fmc-input-with-icon {
    position: relative;
    display: flex;
    align-items: center;
}
.fmc-info-icon {
    /*position: absolute;*/
    /*right: 10px;*/
    cursor: pointer;
    color: #3498db;
    font-weight: bold;
    user-select: none;
    font-size: 22px;
    position: relative; top: -8px;
}
.fmc-info-group {
    display: grid; 
    grid-template-columns: auto 1fr; 
    gap: 10px;
}
.fmc-tooltip-group {
    position: relative;
}
.fmc-tooltip-text {
    visibility: hidden;
    width: 220px;
    background-color: #333;
    color: #fff;
    text-align: center;
    border-radius: 6px;
    padding: 8px;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    margin-left: -110px;
    opacity: 0;
    transition: opacity 0.3s;
    font-size: 0.85em;
}
.fmc-tooltip-text::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: #333 transparent transparent transparent;
}
.fmc-info-icon:hover .fmc-tooltip-text {
    visibility: visible;
    opacity: 1;
}


/* Results Column */
.fmc-results-column {
    background-color: #f8f9fa;
    padding: 25px;
    border-radius: 12px;
}
.fmc-svg-diagram {
    width: 100%;
    max-width: 350px;
    margin: 0 auto 20px;
    display: block;
}

.fmc-results-grid {
    display: grid;
    gap: 5px;
}

.fmc-result-item {
    background-color: #ffffff;
    padding: 0px 15px;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.fmc-result-label {
    font-weight: 600;
    color: #555;
}
.fmc-result-value {
    font-size: 1.4em;
    font-weight: bold;
    color: #3498db;
}

.fmc-spacing-result {
    background-color: #eaf5fc;
    border-color: #bde0fe;
}


/* Loader */
.fmc-loader {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid rgba(52, 152, 219, 0.3);
    border-radius: 50%;
    border-top-color: #3498db;
    animation: fmc-spin 1s ease-in-out infinite;
}

@keyframes fmc-spin {
    to { transform: rotate(360deg); }
}

/* Responsive */
@media (max-width: 768px) {
    .fmc-calculator-container {
        flex-direction: column;
    }
}