/* Area Converter Specific Styles */

.converter-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 2rem;
    align-items: start;
}

/* Card Styles for Converter Tables */
.converter-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    margin-bottom: 2rem;
    position: relative;
    transition: border-color 0.3s ease;
}

.converter-card:hover {
    border-color: var(--primary);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px dashed var(--border);
}

.card-header h3 {
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-remove {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.1rem;
    transition: color 0.2s;
    padding: 0.5rem;
}

.btn-remove:hover {
    color: var(--error);
}

/* Three Column Grid inside Converter Card */
.unit-systems-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.unit-column {
    background: rgba(15, 23, 42, 0.3);
    padding: 1.5rem;
    border-radius: var(--radius);
    border: 1px solid rgba(255, 255, 255, 0.03);
}

.system-title {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    font-weight: 600;
    border-bottom: 2px solid var(--primary);
    padding-bottom: 0.5rem;
    display: inline-block;
}

/* Input Groups */
.input-group {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.input-group label {
    font-size: 0.9rem;
    color: var(--text-muted);
    flex: 1;
}

.input-group input {
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 0.5rem;
    width: 100px;
    text-align: right;
    color: var(--text);
    font-family: monospace;
    font-size: 1rem;
}

.input-group input:focus {
    border-color: var(--primary);
    outline: none;
}

/* Composite Field Styling (R-A-P-D / B-K-D) */
.composite-group {
    margin-top: 1.5rem;
}

.composite-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.composite-group input {
    width: 100%;
    text-align: center;
    letter-spacing: 1px;
    font-weight: 600;
    background: rgba(79, 70, 229, 0.05);
    border-color: rgba(79, 70, 229, 0.2);
}

/* Sidebar Styles */
.summary-sidebar {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    position: sticky;
    top: 80px;
    /* max-height: calc(100vh - 120px); removed to show full content */
    /* overflow-y: auto; removed */
}

.sidebar-title {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 1rem;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.summary-row span:last-child {
    font-weight: 600;
    font-family: monospace;
}

.add-btn-container {
    text-align: center;
    margin-top: 2rem;
    padding: 2rem;
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--primary);
}

.add-btn-container:hover {
    background: rgba(79, 70, 229, 0.05);
    border-color: var(--primary);
}

.hidden {
    display: none;
}

/* Responsive */
@media (max-width: 1024px) {
    .converter-layout {
        grid-template-columns: 1fr;
    }

    .summary-sidebar {
        position: static;
        max-height: none;
        margin-top: 2rem;
    }
}

@media (max-width: 768px) {
    .unit-systems-grid {
        grid-template-columns: 1fr;
    }
}