src/css/fourier_transform.css

/* ============================================================
   Fourier Transform Visualizer - Specific Styles
   ============================================================ */

/* Wave Section Styling */
.wave-section {
    background: var(--color-surface-alt);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    margin-bottom: var(--space-md);
}

.wave-section:last-child {
    margin-bottom: 0;
}

.wave-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-sm);
}

.wave-header .control-label {
    margin-bottom: 0;
    font-weight: 600;
    font-size: 0.875rem;
}

.wave-color {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    display: inline-block;
    border: 2px solid var(--color-surface);
    box-shadow: var(--shadow-sm);
}

/* Checkbox input styling */
.checkbox-input {
    margin-right: var(--space-sm);
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--color-accent);
}

/* Disabled wave section styling */
.wave-section.disabled {
    opacity: 0.5;
}

.wave-section.disabled .slider {
    pointer-events: none;
}

/* Control group spacing in wave sections */
.wave-section .control-group {
    margin-bottom: var(--space-sm);
}

.wave-section .control-group:last-child {
    margin-bottom: 0;
}

/* Phase spectrum card transition */
#phaseCard {
    transition: opacity var(--transition-normal);
}

/* Metrics display enhancements */
.metrics-display .metric-item {
    padding: var(--space-sm) var(--space-md);
    background: var(--color-surface);
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
}

/* Frequency value styling */
#freq1Value, #freq2Value, #freq3Value, #freq4Value {
    color: var(--color-accent);
}

/* Responsive adjustments */
@media (max-width: 1200px) {
    .metrics-display {
        grid-template-columns: 1fr !important;
    }
}

@media (max-width: 600px) {
    .wave-section {
        padding: var(--space-sm);
    }
    
    .metrics-display .metric-item {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-xs);
    }
}

/* Tooltip for help icon */
.help-tooltip {
    display: inline-block;
    cursor: help;
    margin-left: 4px;
    font-size: 0.9em;
    color: var(--color-primary);
    position: relative;
    vertical-align: middle;
}

.help-tooltip:hover::after {
    content: attr(title);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--color-bg-secondary);
    color: var(--color-text);
    padding: 8px 12px;
    border-radius: 4px;
    font-size: 0.75rem;
    white-space: normal;
    width: 300px;
    max-width: 300px;
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    border: 1px solid var(--color-border);
    margin-bottom: 8px;
    text-align: left;
    line-height: 1.4;
}

.help-tooltip::before {
    content: "";
    position: absolute;
    bottom: 100%;
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: transparent transparent var(--color-border) transparent;
    opacity: 0;
    transition: opacity 0.2s;
    margin-bottom: 2px;
}

.help-tooltip:hover::before {
    opacity: 1;
}