/* Base64 Tool — Styles (réutilise les classes communes du JSON Formatter) */

.tool-wrapper { max-width: 900px; margin: 0 auto; }

/* Tabs mode */
.base64-mode-tabs {
    display: flex;
    gap: 0;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: 1rem;
    width: fit-content;
}

.mode-tab {
    padding: 0.6rem 1.5rem;
    border: none;
    background: var(--color-bg-secondary);
    color: var(--color-text-muted);
    font-size: 0.9375rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color var(--transition-fast), color var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.mode-tab + .mode-tab {
    border-left: 1px solid var(--color-border);
}

.mode-tab.is-active {
    background: var(--color-primary);
    color: #fff;
}

.mode-tab:not(.is-active):hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

/* Options */
.base64-options {
    margin-bottom: 1rem;
}

/* Workspace */
.base64-workspace {
    display: flex;
    flex-direction: column;
    gap: 0;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 1rem;
}

.base64-pane {
    display: flex;
    flex-direction: column;
    background: var(--color-bg-secondary);
}

.base64-pane-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0.875rem;
    background: var(--color-bg-tertiary);
    border-bottom: 1px solid var(--color-border);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-text-muted);
}

.pane-meta {
    font-weight: 400;
    font-size: 0.75rem;
}

.base64-editor {
    width: 100%;
    min-height: 180px;
    padding: 1rem;
    font-family: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg-secondary);
    border: none;
    resize: vertical;
    outline: none;
}

.base64-editor:focus { background: var(--color-bg); }
.base64-editor[readonly] { cursor: default; resize: none; }

.base64-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem;
    background: var(--color-bg-tertiary);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.convert-btn {
    min-width: 160px;
}

/* Actions */
.base64-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

/* Réutilise les classes de json-styles.css pour tool-header, local-badge, tool-chain-bar, tool-faq, faq-item */
.tool-header {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding: 1.5rem;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.tool-header-icon {
    width: 3rem;
    height: 3rem;
    background: var(--color-primary-light);
    color: var(--color-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.tool-header-content { flex: 1; }
.tool-header-title { font-size: 1.5rem; font-weight: 700; color: var(--color-text); margin: 0 0 0.25rem; }
.tool-header-subtitle { color: var(--color-text-muted); font-size: 0.9375rem; margin: 0; }
.tool-header-badge { align-self: center; }

.local-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.8125rem;
    color: var(--color-success);
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-radius: var(--radius-md);
    padding: 0.3rem 0.75rem;
    white-space: nowrap;
}

.tool-chain-bar {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    padding: 0.875rem 1rem;
    background: var(--color-primary-light);
    border: 1px solid #bfdbfe;
    border-radius: var(--radius-md);
    margin-bottom: 2rem;
}

.chain-label { font-size: 0.875rem; font-weight: 600; color: var(--color-primary); white-space: nowrap; }

.chain-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.375rem 0.875rem;
    background: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.chain-btn:hover { background: var(--color-primary-dark); }

.tool-faq { margin-top: 3rem; padding-top: 2rem; border-top: 1px solid var(--color-border); }
.tool-faq h2 { font-size: 1.25rem; font-weight: 700; color: var(--color-text); margin-bottom: 1.25rem; }

.faq-item {
    margin-bottom: 1.25rem;
    padding: 1rem 1.25rem;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

.faq-item h3 { font-size: 1rem; font-weight: 600; color: var(--color-text); margin: 0 0 0.5rem; }
.faq-item p { color: var(--color-text-muted); font-size: 0.9375rem; line-height: 1.7; margin: 0; }

@media (max-width: 768px) {
    .tool-header { flex-direction: column; }
}