/**
 * Text Cleaner Pro – Scoped, responsive, accessible styles.
 * Prefix: tcp-
 */
.tcp-tool {
    /* Custom properties – easily overridable */
    --tcp-font: system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --tcp-primary: #2563eb;
    --tcp-primary-hover: #1d4ed8;
    --tcp-bg: #ffffff;
    --tcp-surface: #f8fafc;
    --tcp-border: #e2e8f0;
    --tcp-text: #0f172a;
    --tcp-text-muted: #475569;
    --tcp-radius: 12px;
    --tcp-shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
    --tcp-shadow: 0 4px 12px rgba(0,0,0,0.05);
    --tcp-transition: 0.2s ease;

    font-family: var(--tcp-font);
    color: var(--tcp-text);
    background: var(--tcp-bg);
    max-width: 1280px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    box-sizing: border-box;
}

/* Reset within the tool */
.tcp-tool *,
.tcp-tool *::before,
.tcp-tool *::after {
    box-sizing: border-box;
}

.tcp-tool button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    transition: background var(--tcp-transition), box-shadow var(--tcp-transition);
}

.tcp-tool button:focus-visible {
    outline: 2px solid var(--tcp-primary);
    outline-offset: 2px;
}

/* Typography */
.tcp-title {
    font-size: 2rem;
    font-weight: 700;
    margin: 0 0 0.5rem;
    line-height: 1.2;
}

.tcp-subtitle {
    font-size: 1.1rem;
    color: var(--tcp-text-muted);
    margin: 0 0 1.5rem;
}

/* Panels */
.tcp-panel {
    background: var(--tcp-surface);
    border: 1px solid var(--tcp-border);
    border-radius: var(--tcp-radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--tcp-shadow-sm);
}

.tcp-panel-heading {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0 0 1rem;
}

/* Textarea */
.tcp-textarea {
    width: 100%;
    min-height: 160px;
    padding: 1rem;
    font-size: 0.95rem;
    line-height: 1.5;
    font-family: monospace;
    border: 1px solid var(--tcp-border);
    border-radius: 8px;
    background: var(--tcp-bg);
    color: var(--tcp-text);
    resize: vertical;
    transition: border-color var(--tcp-transition);
    outline: none;
}

.tcp-textarea:focus {
    border-color: var(--tcp-primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.15);
}

/* Action rows */
.tcp-action-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
}

/* Buttons */
.tcp-button {
    background: var(--tcp-bg);
    border: 1px solid var(--tcp-border);
    color: var(--tcp-text);
    font-weight: 500;
}

.tcp-button:hover {
    background: #f1f5f9;
}

.tcp-clean-btn {
    background: var(--tcp-primary);
    color: #ffffff;
    border-color: var(--tcp-primary);
    font-weight: 600;
    padding: 0.6rem 1.4rem;
}

.tcp-clean-btn:hover {
    background: var(--tcp-primary-hover);
}

.tcp-paste-btn,
.tcp-copy-input-btn,
.tcp-copy-output-btn,
.tcp-download-btn {
    background: #ffffff;
}

/* Stats inside input panel */
.tcp-input-stats {
    margin-left: auto;
    font-size: 0.85rem;
    color: var(--tcp-text-muted);
    display: flex;
    gap: 1rem;
}

/* Options grid */
.tcp-options-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.2rem;
    margin-bottom: 1.5rem;
}

.tcp-option-group {
    border: none;
    padding: 0;
    margin: 0;
}

.tcp-option-group-title {
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.6rem;
    color: var(--tcp-text);
    display: block;
}

.tcp-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.4rem;
    font-size: 0.9rem;
}

.tcp-checkbox {
    width: 16px;
    height: 16px;
    accent-color: var(--tcp-primary);
    cursor: pointer;
}

.tcp-toggle-label {
    cursor: pointer;
    user-select: none;
}

.tcp-options-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

/* Live toggle special */
.tcp-live-toggle {
    margin-left: auto;
}

/* Output panel – same as input */
.tcp-output-panel .tcp-output {
    background: #f9fafb;
}

/* Statistics bar */
.tcp-stats-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    background: var(--tcp-surface);
    border: 1px solid var(--tcp-border);
    border-radius: var(--tcp-radius);
    padding: 1rem 1.5rem;
    margin: 1.5rem 0;
    font-size: 0.9rem;
    box-shadow: var(--tcp-shadow-sm);
}

.tcp-stat {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.tcp-stat span {
    display: inline-flex;
    gap: 0.3rem;
}

/* FAQ */
.tcp-faq {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--tcp-border);
}

.tcp-faq-title {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.tcp-faq-grid {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.tcp-faq-item {
    border: 1px solid var(--tcp-border);
    border-radius: var(--tcp-radius);
    padding: 1rem;
    background: var(--tcp-surface);
}

.tcp-faq-item summary {
    font-weight: 600;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.tcp-faq-item summary::-webkit-details-marker {
    display: none;
}

.tcp-faq-item summary::after {
    content: '+';
    font-size: 1.2rem;
    transition: transform var(--tcp-transition);
}

.tcp-faq-item[open] summary::after {
    transform: rotate(45deg);
}

.tcp-faq-item p {
    margin: 0.8rem 0 0;
    color: var(--tcp-text-muted);
    line-height: 1.6;
}

.tcp-faq-links {
    margin-top: 1.5rem;
    font-size: 0.95rem;
}

.tcp-faq-links a {
    color: var(--tcp-primary);
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 768px) {
    .tcp-tool {
        padding: 1.5rem 1rem;
    }

    .tcp-main {
        display: flex;
        flex-direction: column;
        gap: 1.5rem;
    }

    .tcp-stats-bar {
        flex-direction: column;
        gap: 0.8rem;
    }

    .tcp-options-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .tcp-live-toggle {
        margin-left: 0;
    }
}