/* Signal List Styling - Clean & Minimal Design */

/* Search Input */
.signals-search-input {
    background-color: var(--color-bg-secondary);
    border: 0;
    border-radius: 12px;
    height: 44px;
    font-size: 1rem; /* 16px minimum prevents mobile zoom on focus */
}

.signals-search-input::placeholder {
    color: var(--form-placeholder);
}

.signals-search-input:focus {
    background-color: var(--form-bg);
    border-color: var(--form-border-focus);
    box-shadow: 0 0 0 0.2rem var(--color-border-focus-shadow);
}

/* Category Select */
.signals-category-select {
    background-color: var(--color-bg-secondary);
    border: 0;
    border-radius: 12px;
    height: 44px;
    font-size: 0.9rem;
}

.signals-category-select:focus {
    background-color: var(--form-bg);
    border-color: var(--form-border-focus);
    box-shadow: 0 0 0 0.2rem var(--color-border-focus-shadow);
}

/* Signals List Container */
.signals-list-container {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 0.75rem;
}

/* Signal List Items */
.signal-list-item {
    padding: 1.25rem 1rem;
    border-bottom: 1px solid var(--color-border-primary);
    transition: background-color 0.15s ease, box-shadow 0.15s ease;
}

.signal-list-item:hover {
    background-color: var(--color-bg-hover);
    box-shadow: var(--shadow-sm);
}

.signal-list-item:last-child {
    border-bottom: none;
}

/* Signal Metadata */
.signal-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    align-items: center;
}

.signal-meta span {
    display: inline-flex;
    align-items: center;
}

.signal-meta i {
    opacity: 0.7;
}

/* Signal Description Toggle */
.signal-description-toggle {
    font-size: 0.8125rem;
    padding: 0;
    margin-top: 0.5rem;
    color: var(--color-border-focus);
    text-decoration: none;
    background: none;
    border: none;
}

.signal-description-toggle:hover {
    color: var(--color-border-focus);
    text-decoration: underline;
}

.signal-description-toggle i {
    font-size: 0.625rem;
    transition: transform 0.2s ease;
}

/* Signal Description Content */
.signal-description-content {
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--color-border-primary);
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

/* Clear Button */
.signals-clear-btn {
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border-primary);
    color: var(--color-text-secondary);
}

.signals-clear-btn:hover {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    border-color: var(--color-border-focus);
}

/* Search Icon */
.signals-search-icon {
    color: var(--color-text-secondary);
}

/* Empty State */
.signals-empty-state {
    color: var(--color-text-secondary);
}

.signals-empty-state h4 {
    color: var(--color-text-primary);
}

/* Focus States for Accessibility */
.signal-list-item:focus-within {
    outline: 2px solid var(--color-border-focus);
    outline-offset: -2px;
}

/* Responsive Adjustments */
@media (min-width: 768px) {
    .signal-list-item {
        padding: 1.5rem 1.25rem;
    }
}

@media (max-width: 576px) {
    .signal-meta {
        gap: 0.5rem;
        font-size: 0.8125rem;
    }

    .signal-description-content {
        font-size: 0.875rem;
    }
}