/*
 * Regex Tester Styles
 */

.tool-workspace-regex {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* --- Regex Input Section --- */
.regex-input-section {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.regex-input-container {
    display: flex;
    align-items: center;
    flex-grow: 1;
    background-color: var(--color-background-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    padding: 0.25rem 0.75rem;
}

.regex-input {
    width: 100%;
    border: none;
    background: transparent;
    padding: 0.5rem;
    font-family: var(--font-family-mono);
    color: var(--color-text-primary);
    font-size: 1rem;
}
.regex-input:focus {
    outline: none;
}

.regex-delimiter {
    font-size: 1.5rem;
    color: var(--color-text-secondary);
    font-family: var(--font-family-mono);
}

.regex-input-container.error {
    border-color: var(--color-error);
    box-shadow: 0 0 0 1px var(--color-error);
}

.regex-error-message {
    color: var(--color-error);
    font-family: var(--font-family-mono);
    font-size: 0.875rem;
    margin-top: -0.5rem;
    min-height: 1.2em;
}

.regex-flags-container {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.regex-flags-container label {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-family: var(--font-family-mono);
    cursor: pointer;
}

/* --- Test String Section --- */
.test-string-section {
    position: relative;
    height: 300px;
}

.test-string-section .text-area,
.test-string-highlight {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0.75rem;
    font-family: var(--font-family-mono);
    font-size: 0.9rem;
    line-height: 1.5;
    border-radius: var(--border-radius-md);
    box-sizing: border-box;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.test-string-section .text-area {
    background: transparent;
    color: transparent;
    caret-color: var(--color-text-primary);
    z-index: 1;
    resize: none;
    border: 1px solid var(--color-border);
}
.test-string-section .text-area:focus {
    outline: none;
    border-color: var(--color-primary);
}


.test-string-highlight {
    background-color: var(--color-background-secondary);
    color: var(--color-text-primary);
    pointer-events: none;
    overflow: auto;
    z-index: 0;
    border: 1px solid transparent;
}

.test-string-highlight mark {
    background-color: var(--color-primary-light);
    color: var(--color-text-primary);
    border-radius: var(--border-radius-sm);
}

/* --- Results Section --- */
.results-section-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1rem;
    align-items: start;
}

.match-results-panel, .cheatsheet-panel {
    background-color: var(--color-background-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    padding: 1rem 1.5rem;
    height: 100%;
}

.match-results-container {
    max-height: 300px;
    overflow-y: auto;
}

.match-results-container .no-matches {
    color: var(--color-text-secondary);
    font-style: italic;
}

.match-item {
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--color-border-light);
}
.match-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.match-header {
    font-weight: 600;
    font-family: var(--font-family-mono);
    background-color: var(--color-background-tertiary);
    padding: 0.25rem 0.5rem;
    border-radius: var(--border-radius-sm);
    display: inline-block;
    word-break: break-all;
}

.match-details {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-left: 0.5rem;
}

.capture-groups {
    margin-top: 0.5rem;
    padding-left: 1rem;
    list-style-type: none;
}

.capture-group {
    font-family: var(--font-family-mono);
}

.capture-group .group-index {
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-right: 0.5rem;
}

/* --- Cheat Sheet --- */
.cheatsheet-details summary {
    cursor: pointer;
    font-weight: 600;
}

.cheatsheet-content {
    margin-top: 1rem;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 0.5rem;
}

.cheatsheet-item {
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    border-radius: var(--border-radius-sm);
    transition: background-color 0.2s;
}
.cheatsheet-item:hover {
    background-color: var(--color-background-tertiary);
}

.cheatsheet-item .token {
    font-family: var(--font-family-mono);
    font-weight: 600;
    color: var(--color-primary);
}

.cheatsheet-item .description {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

/* --- Responsive --- */
@media (max-width: 900px) {
    .results-section-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .regex-input-section {
        flex-direction: column;
        align-items: stretch;
    }
}