/* ============================================
   Tool-Specific Styles
   ============================================ */

/* --- Tool Container --- */
.tool-container {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

/* --- Split Layout (side-by-side input/output) --- */
.tool-split {
    display: flex;
    gap: var(--space-5);
    align-items: stretch;
}

.tool-split > * {
    flex: 1;
    min-width: 0;
}

/* --- Stack Layout (vertical input → output) --- */
.tool-stack {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

/* --- Panel (card-like wrapper for tool sections) --- */
.tool-panel {
    padding: var(--space-5);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.tool-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-4);
}

.tool-panel-title {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wide);
}

/* --- File Dropzone --- */
.dropzone {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-12) var(--space-6);
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-bg-card);
    cursor: pointer;
    transition: var(--transition-all);
    text-align: center;
    position: relative;
}

.dropzone:hover {
    border-color: var(--color-border-hover);
    background: var(--color-bg-card-hover);
}

.dropzone.drag-over {
    border-color: var(--color-accent-1);
    background: var(--color-accent-glow);
    box-shadow: var(--shadow-glow);
}

.dropzone-icon {
    font-size: 2.5rem;
    opacity: 0.5;
}

.dropzone-text {
    font-size: var(--text-base);
    font-weight: 500;
    color: var(--color-text-secondary);
}

.dropzone-hint {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
}

.dropzone input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.dropzone.has-file {
    padding: var(--space-5);
    border-style: solid;
    cursor: default;
}

/* --- Image Preview --- */
.image-preview-wrap {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    min-height: 200px;
}

.image-preview-wrap img,
.image-preview-wrap canvas {
    max-width: 100%;
    max-height: 400px;
    object-fit: contain;
}

/* --- Code Area (monospace textarea) --- */
.code-area {
    width: 100%;
    min-height: 300px;
    padding: var(--space-4);
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    color: var(--color-text-primary);
    background: var(--color-bg-code);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    resize: vertical;
    tab-size: 2;
    white-space: pre;
    overflow-x: auto;
    transition: var(--transition-all);
}

.code-area:focus {
    border-color: var(--color-border-focus);
    box-shadow: var(--shadow-glow);
}

.code-area::placeholder {
    color: var(--color-text-muted);
}

/* --- Action Bar --- */
.tool-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.tool-actions-right {
    margin-left: auto;
    display: flex;
    gap: var(--space-2);
}

/* --- Options Row --- */
.tool-options {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    flex-wrap: wrap;
    padding: var(--space-3) var(--space-4);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

.tool-option {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
}

.tool-option label {
    color: var(--color-text-secondary);
    white-space: nowrap;
}

.tool-option .input,
.tool-option .select {
    width: auto;
    min-width: 80px;
    padding: var(--space-1) var(--space-3);
}

/* --- Color Swatch --- */
.color-swatch {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    border: 2px solid var(--color-border);
    cursor: pointer;
    transition: var(--transition-all);
    flex-shrink: 0;
}

.color-swatch:hover {
    transform: scale(1.08);
    border-color: var(--color-border-hover);
}

.color-swatch-lg {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-lg);
}

.color-row {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

/* --- Slider with Value --- */
.slider-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.slider-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.slider-label {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
}

.slider-value {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-accent-1);
    font-family: var(--font-mono);
}

/* --- File Info Bar --- */
.file-info {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-3) var(--space-4);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    flex-wrap: wrap;
}

.file-info-item {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    color: var(--color-text-secondary);
}

.file-info-item strong {
    color: var(--color-text-primary);
    font-weight: 600;
}

.file-info-sep {
    width: 1px;
    height: 16px;
    background: var(--color-border);
}

/* --- Comparison (Before / After) --- */
.comparison {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
}

.comparison-label {
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: var(--tracking-wide);
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-2);
}

/* --- Swap Button (for converters) --- */
.btn-swap {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    transition: var(--transition-all);
    flex-shrink: 0;
}

.btn-swap:hover {
    color: var(--color-accent-1);
    border-color: rgba(108, 99, 255, 0.3);
    background: var(--color-accent-glow);
    transform: rotate(180deg);
}

/* --- Output Pre (formatted output) --- */
.output-pre {
    padding: var(--space-4);
    background: var(--color-bg-code);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    white-space: pre-wrap;
    word-break: break-all;
    overflow-x: auto;
    max-height: 500px;
    overflow-y: auto;
    color: var(--color-text-primary);
}

/* --- Markdown Output --- */
.markdown-output {
    padding: var(--space-5);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    line-height: var(--leading-relaxed);
    overflow-x: auto;
}

.markdown-output h1,
.markdown-output h2,
.markdown-output h3 {
    margin-top: 1.2em;
    margin-bottom: 0.5em;
}

.markdown-output h1:first-child,
.markdown-output h2:first-child,
.markdown-output h3:first-child {
    margin-top: 0;
}

.markdown-output p {
    margin-bottom: 0.8em;
    color: var(--color-text-primary);
}

.markdown-output code {
    padding: 2px 6px;
    background: var(--color-bg-code);
    border-radius: var(--radius-xs);
    font-size: 0.9em;
}

.markdown-output pre {
    padding: var(--space-4);
    background: var(--color-bg-code);
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin-bottom: 1em;
}

.markdown-output pre code {
    padding: 0;
    background: none;
}

.markdown-output ul, .markdown-output ol {
    padding-left: 1.5em;
    margin-bottom: 0.8em;
}

.markdown-output li {
    list-style: disc;
    margin-bottom: 0.3em;
    color: var(--color-text-primary);
}

.markdown-output ol li {
    list-style: decimal;
}

.markdown-output blockquote {
    border-left: 3px solid var(--color-accent-1);
    padding-left: var(--space-4);
    margin: 0.8em 0;
    color: var(--color-text-secondary);
}

.markdown-output a {
    color: var(--color-accent-1);
    text-decoration: underline;
}

.markdown-output hr {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: 1.5em 0;
}

.markdown-output table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1em;
}

.markdown-output th,
.markdown-output td {
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--color-border);
    text-align: left;
    font-size: var(--text-sm);
}

.markdown-output th {
    background: var(--color-bg-code);
    font-weight: 600;
}

.markdown-output img {
    border-radius: var(--radius-md);
    margin: 0.5em 0;
}

/* --- Diff output --- */
.diff-output {
    padding: var(--space-4);
    background: var(--color-bg-code);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    line-height: 1.8;
    overflow-x: auto;
    max-height: 500px;
    overflow-y: auto;
}

.diff-line { padding: 1px var(--space-3); }
.diff-add { background: var(--color-success-bg); color: var(--color-success); }
.diff-remove { background: var(--color-error-bg); color: var(--color-error); }
.diff-neutral { color: var(--color-text-tertiary); }

/* --- Regex matches highlighting --- */
.regex-match {
    background: rgba(108, 99, 255, 0.25);
    border-bottom: 2px solid var(--color-accent-1);
    padding: 1px 0;
    border-radius: 2px;
}

/* --- Gradient Preview --- */
.gradient-preview {
    width: 100%;
    height: 200px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    margin-bottom: var(--space-4);
    transition: var(--transition-all);
}

/* --- Canvas Container --- */
.canvas-container {
    position: relative;
    background: repeating-conic-gradient(var(--color-bg-card) 0% 25%, transparent 0% 50%) 50% / 20px 20px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
}

.canvas-container canvas {
    max-width: 100%;
    max-height: 400px;
    display: block;
}

/* --- Password Display --- */
.password-display {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4);
    background: var(--color-bg-code);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

.password-text {
    flex: 1;
    font-family: var(--font-mono);
    font-size: var(--text-xl);
    font-weight: 600;
    word-break: break-all;
    line-height: 1.4;
}

/* --- Strength Meter --- */
.strength-meter {
    height: 6px;
    background: var(--color-bg-input);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-top: var(--space-2);
}

.strength-meter-fill {
    height: 100%;
    border-radius: var(--radius-full);
    transition: width var(--duration-slow) var(--ease-out), background var(--duration-normal) ease;
}

.strength-weak { background: var(--color-error); width: 25%; }
.strength-fair { background: var(--color-warning); width: 50%; }
.strength-good { background: var(--color-info); width: 75%; }
.strength-strong { background: var(--color-success); width: 100%; }

/* --- QR code output --- */
.qr-output {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-6);
    background: white;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.qr-output canvas {
    image-rendering: pixelated;
}

/* --- Conversion Arrows --- */
.conversion-flow {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.conversion-flow > * {
    flex: 1;
    min-width: 0;
}

.conversion-arrow {
    flex: 0 0 auto;
    color: var(--color-text-muted);
    font-size: 1.2rem;
}

/* --- Responsive tool overrides --- */
@media (max-width: 768px) {
    .tool-split {
        flex-direction: column;
    }

    .comparison {
        grid-template-columns: 1fr;
    }

    .conversion-flow {
        flex-direction: column;
    }

    .conversion-arrow {
        transform: rotate(90deg);
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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