/* Tools page layout */
.tools-page-layout {
    display: flex;
    gap: 0;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 12px 0;
}

.tools-sidebar {
    width: 220px;
    min-width: 220px;
    max-height: calc(100vh - 140px);
    overflow-y: auto;
    position: sticky;
    top: 80px;
    padding: 12px;
    border-right: 1px solid var(--border-primary);
    background: var(--surface-base);
}

.tools-sidebar-search {
    margin-bottom: 10px;
}

.tools-sidebar-search input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    background: var(--surface-elevated);
    color: var(--foreground-primary);
    font-size: 13px;
    box-sizing: border-box;
    outline: none;
    transition: border-color .15s;
}

.tools-sidebar-search input:focus {
    border-color: var(--accent-primary);
}

.tools-nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.tool-cat-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--foreground-tertiary);
    padding: 12px 8px 4px;
    font-weight: 600;
}

.tool-cat-label:first-child {
    padding-top: 4px;
}

.tool-nav-item {
    display: block;
    padding: 7px 10px;
    font-size: 13px;
    color: var(--foreground-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all .12s;
    text-decoration: none;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.tool-nav-item:hover {
    background: var(--surface-elevated);
    color: var(--foreground-primary);
}

.tool-nav-item.active {
    background: var(--accent-primary);
    color: #fff;
}

.tool-nav-item.hidden {
    display: none;
}

/* Tool panel */
.tools-content-area {
    flex: 1;
    min-width: 0;
    padding: 0 0 40px 24px;
}

.tool-panel {
    background: var(--surface-base);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    padding: 28px 32px;
}

.tool-title {
    font-size: 1.3em;
    margin: 0 0 4px;
    color: var(--foreground-primary);
}

.tool-desc {
    font-size: .88em;
    color: var(--foreground-tertiary);
    margin: 0 0 24px;
}

.tool-body {
    min-height: 200px;
}

/* Form elements in tools */
.tool-body label {
    display: block;
    font-size: .85em;
    font-weight: 600;
    color: var(--foreground-secondary);
    margin-bottom: 4px;
}

.tool-body textarea,
.tool-body input[type="text"],
.tool-body input[type="number"],
.tool-body input[type="search"],
.tool-body select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    background: var(--surface-elevated);
    color: var(--foreground-primary);
    font-size: 14px;
    font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', 'Monaco', monospace;
    box-sizing: border-box;
    outline: none;
    transition: border-color .15s;
    resize: vertical;
}

.tool-body textarea:focus,
.tool-body input:focus,
.tool-body select:focus {
    border-color: var(--accent-primary);
}

.tool-body textarea {
    min-height: 140px;
}

/* JSON editor with line numbers */
.json-editor-wrap {
    display: flex;
    max-height: 65vh;
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    background: var(--surface-elevated);
    overflow: hidden;
    transition: border-color .15s;
}
.json-editor-wrap:focus-within {
    border-color: var(--accent-primary);
}
.json-editor-wrap textarea {
    flex: 1;
    min-height: 380px;
    max-height: 65vh;
    border: none;
    border-radius: 0;
    background: transparent;
    outline: none;
    font-size: 14px;
    line-height: 1.7;
    font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', 'Monaco', monospace;
    color: var(--foreground-primary);
    padding: 10px 12px;
    resize: vertical;
    box-sizing: border-box;
    overflow-y: auto;
}
.json-editor-wrap textarea::-webkit-scrollbar {
    width: 5px;
}
.json-editor-wrap textarea::-webkit-scrollbar-thumb {
    background: var(--border-primary);
    border-radius: 3px;
}
.json-ln {
    flex: 0 0 auto;
    min-width: 42px;
    padding: 10px 8px 10px 12px;
    background: var(--surface-base);
    border-right: 1px solid var(--border-primary);
    font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', 'Monaco', monospace;
    font-size: 14px;
    line-height: 1.7;
    color: var(--foreground-tertiary);
    text-align: right;
    white-space: pre;
    overflow: hidden;
    user-select: none;
    -webkit-user-select: none;
}

.tool-body .btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    border: none;
    border-radius: var(--radius-md);
    background: var(--accent-primary);
    color: #fff;
    font-size: 14px;
    cursor: pointer;
    transition: opacity .15s, transform .1s;
    font-weight: 500;
}

.tool-body .btn:hover { opacity: .88; }
.tool-body .btn:active { transform: scale(.97); }
.tool-body .btn.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}
.tool-body .btn.btn-outline {
    background: transparent;
    border: 1px solid var(--border-primary);
    color: var(--foreground-primary);
}
.tool-body .btn.btn-outline:hover {
    background: var(--surface-elevated);
}
.tool-body .btn.btn-danger {
    background: var(--danger, #ef4444);
}

.tool-body .row {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
    align-items: flex-end;
}

.tool-body .col {
    flex: 1;
    min-width: 0;
}

.tool-body .result-box {
    margin-top: 12px;
    padding: 14px;
    background: var(--surface-elevated);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', 'Monaco', monospace;
    font-size: 13px;
    color: var(--foreground-primary);
    white-space: pre-wrap;
    word-break: break-all;
    max-height: 400px;
    overflow-y: auto;
    line-height: 1.6;
}

.tool-body .result-box.error {
    color: var(--danger, #ef4444);
    border-color: var(--danger, #ef4444);
}

.tool-body .result-box.success {
    border-color: var(--success, #22c55e);
}

.tool-body .status-row {
    display: flex;
    gap: 12px;
    align-items: center;
    margin-top: 8px;
    font-size: 12px;
    color: var(--foreground-tertiary);
}

.tool-body .hr {
    border: none;
    border-top: 1px solid var(--border-primary);
    margin: 20px 0;
}

/* HTTP status table */
.http-status-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.http-status-table th {
    text-align: left;
    padding: 8px 12px;
    border-bottom: 2px solid var(--border-primary);
    color: var(--foreground-secondary);
    font-weight: 600;
}

.http-status-table td {
    padding: 7px 12px;
    border-bottom: 1px solid var(--border-primary);
    color: var(--foreground-primary);
    font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
}
.http-status-table td:last-child {
    font-family: inherit;
    color: var(--foreground-secondary);
}

/* Color preview */
.color-swatch {
    display: inline-block;
    width: 20px;
    height: 20px;
    border-radius: 4px;
    border: 1px solid var(--border-primary);
    vertical-align: middle;
    margin-right: 6px;
}

/* Toast / copy feedback */
.tool-toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-primary);
    color: #fff;
    padding: 8px 20px;
    border-radius: var(--radius-pill);
    font-size: 13px;
    z-index: 999;
    opacity: 0;
    transition: opacity .2s;
    pointer-events: none;
}
.tool-toast.show {
    opacity: 1;
}

/* HJ212 table */
.hj212-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
    margin-top: 8px;
}

.hj212-table th {
    text-align: left;
    padding: 6px 8px;
    border-bottom: 2px solid var(--border-primary);
    color: var(--foreground-secondary);
    font-weight: 600;
    font-size: 11px;
    white-space: nowrap;
}

.hj212-table td {
    padding: 5px 8px;
    border-bottom: 1px solid var(--border-primary);
    color: var(--foreground-primary);
    white-space: nowrap;
}

.hj212-table tbody tr:hover {
    background: var(--surface-elevated);
}

/* mobile tools toggle */
.tools-mobile-toggle {
    display: none;
    width: 100%;
    padding: 10px;
    margin-bottom: 12px;
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    background: var(--surface-elevated);
    color: var(--foreground-primary);
    font-size: 14px;
    cursor: pointer;
    text-align: left;
}

/* Mobile */
@media (max-width: 768px) {
    .tools-page-layout {
        flex-direction: column;
        padding: 12px 8px 0;
    }
    .tools-sidebar {
        width: 100%;
        min-width: 0;
        max-height: none;
        position: static;
        border-right: none;
        border-bottom: 1px solid var(--border-primary);
        padding: 8px 4px;
        display: none;
    }
    .tools-sidebar.open {
        display: block;
    }
    .tools-content-area {
        padding: 12px 0 40px;
    }
    .tool-panel {
        padding: 18px 14px;
    }
    .tool-body .row {
        flex-direction: column;
        gap: 8px;
    }
    .tools-mobile-toggle {
        display: block;
    }
}

/* Scrollbar */
.tools-sidebar::-webkit-scrollbar,
.tool-body .result-box::-webkit-scrollbar,
.tool-body textarea::-webkit-scrollbar {
    width: 5px;
    height: 5px;
}

.tools-sidebar::-webkit-scrollbar-track,
.tool-body .result-box::-webkit-scrollbar-track,
.tool-body textarea::-webkit-scrollbar-track {
    background: transparent;
}

.tools-sidebar::-webkit-scrollbar-thumb,
.tool-body .result-box::-webkit-scrollbar-thumb,
.tool-body textarea::-webkit-scrollbar-thumb {
    background: var(--border-primary);
    border-radius: 3px;
}

.tools-sidebar::-webkit-scrollbar-thumb:hover,
.tool-body .result-box::-webkit-scrollbar-thumb:hover,
.tool-body textarea::-webkit-scrollbar-thumb:hover {
    background: var(--foreground-tertiary);
}

/* Firefox */
.tools-sidebar,
.tool-body .result-box,
.tool-body textarea {
    scrollbar-width: thin;
    scrollbar-color: var(--border-primary) transparent;
}