/* ============================================================
   Edit PDF Tool — edit-pdf.css
   Prefix: ep-
   Accent: #8B5CF6  (violet)
   Accent RGB: 139, 92, 246
   ============================================================ */

/* ── Accent override for tool-base shared classes ─────────── */
.ep-section {
    --tool-accent: #8B5CF6;
    --tool-accent-rgb: 139, 92, 246;
    padding: 40px 0 80px;
}

/* ── Upload Zone ───────────────────────────────────────────── */
.ep-upload-zone {
    display: block;
    border: 2px dashed rgba(139, 92, 246, 0.32);
    border-radius: 16px;
    background: rgba(139, 92, 246, 0.03);
    padding: 56px 24px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
    outline: none;
}

.ep-upload-zone:hover,
.ep-upload-zone:focus-visible {
    border-color: rgba(139, 92, 246, 0.6);
    background: rgba(139, 92, 246, 0.07);
}

.ep-upload-zone.ep-drag-over {
    border-color: #8B5CF6;
    background: rgba(139, 92, 246, 0.1);
}

.ep-upload-icon {
    font-size: 3rem;
    color: #8B5CF6;
    opacity: 0.65;
    margin-bottom: 14px;
    display: block;
}

.ep-upload-title {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 6px;
}

.ep-upload-sub {
    font-size: 1rem;
    color: var(--text-secondary);
    margin: 0 0 10px;
}

.ep-upload-formats {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    margin: 0;
}

/* ── Workspace ─────────────────────────────────────────────── */
.ep-workspace {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* ── Toolbar ───────────────────────────────────────────────── */
.ep-toolbar {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    padding: 10px 14px;
    background: var(--bg-secondary, #F8FAFC);
    border: 1px solid var(--border-color, #E2E8F0);
    border-radius: 12px;
}

.ep-toolbar-sep {
    width: 1px;
    height: 28px;
    background: var(--border-color, #E2E8F0);
    flex-shrink: 0;
}

/* ── Tool buttons ──────────────────────────────────────────── */
.ep-tool-group {
    display: flex;
    align-items: center;
    gap: 2px;
}

.ep-tool-btn {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 6px 9px;
    border: 1px solid transparent;
    border-radius: 8px;
    background: transparent;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 0.6875rem;
    font-weight: 500;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.ep-tool-btn i {
    font-size: 1rem;
}

.ep-tool-btn:hover {
    background: rgba(139, 92, 246, 0.07);
    color: #8B5CF6;
}

.ep-tool-btn.ep-tool-active,
.ep-tool-btn[aria-pressed="true"] {
    background: rgba(139, 92, 246, 0.12);
    border-color: rgba(139, 92, 246, 0.35);
    color: #8B5CF6;
}

/* ── Color group ───────────────────────────────────────────── */
.ep-color-group {
    display: flex;
    align-items: center;
    gap: 6px;
}

.ep-prop-label {
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    white-space: nowrap;
}

.ep-swatches {
    display: flex;
    align-items: center;
    gap: 4px;
}

.ep-swatch {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    transition: transform 0.1s, box-shadow 0.1s;
    outline: none;
    flex-shrink: 0;
}

.ep-swatch:hover {
    transform: scale(1.15);
    box-shadow: 0 0 0 2px rgba(139, 92, 246, 0.35);
}

.ep-swatch.ep-swatch-active,
.ep-swatch[aria-pressed="true"] {
    box-shadow: 0 0 0 2px #8B5CF6, 0 0 0 4px rgba(139, 92, 246, 0.2);
}

.ep-swatch-white {
    border: 2px solid var(--border-color, #E2E8F0) !important;
}

/* ── Width group ───────────────────────────────────────────── */
.ep-prop-group {
    display: flex;
    align-items: center;
    gap: 6px;
}

.ep-width-btns,
.ep-font-btns {
    display: flex;
    align-items: center;
    gap: 3px;
}

.ep-width-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border: 1px solid var(--border-color, #E2E8F0);
    border-radius: 6px;
    background: var(--bg-primary, #fff);
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s;
}

.ep-width-btn:hover,
.ep-width-btn.ep-width-active {
    border-color: #8B5CF6;
    background: rgba(139, 92, 246, 0.07);
}

.ep-width-dot {
    display: block;
    background: var(--text-primary);
    border-radius: 50%;
}

.ep-width-thin {
    width: 4px;
    height: 4px;
}

.ep-width-normal {
    width: 7px;
    height: 7px;
}

.ep-width-thick {
    width: 11px;
    height: 11px;
}

/* ── Font size buttons ─────────────────────────────────────── */
.ep-font-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 3px 8px;
    border: 1px solid var(--border-color, #E2E8F0);
    border-radius: 6px;
    background: var(--bg-primary, #fff);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: border-color 0.15s, color 0.15s;
}

.ep-font-btn:hover,
.ep-font-btn.ep-font-active {
    border-color: #8B5CF6;
    color: #8B5CF6;
    background: rgba(139, 92, 246, 0.07);
}

/* ── Fill toggle button (rect tool) ───────────────────────── */
.ep-fill-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    border: 1px solid var(--border-color, #E2E8F0);
    border-radius: 6px;
    background: var(--bg-primary, #fff);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: border-color 0.15s, color 0.15s, background 0.15s;
}

.ep-fill-btn:hover,
.ep-fill-btn.ep-fill-active {
    border-color: #8B5CF6;
    color: #8B5CF6;
    background: rgba(139, 92, 246, 0.07);
}

/* ── Action buttons (undo, clear) ──────────────────────────── */
.ep-action-group {
    display: flex;
    align-items: center;
    gap: 4px;
}

.ep-action-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 10px;
    border: 1px solid var(--border-color, #E2E8F0);
    border-radius: 8px;
    background: transparent;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: border-color 0.15s, color 0.15s, background 0.15s;
}

.ep-action-btn i {
    font-size: 0.875rem;
}

.ep-action-btn:hover {
    border-color: #8B5CF6;
    color: #8B5CF6;
}

.ep-action-btn.ep-action-danger:hover {
    border-color: #DC2626;
    color: #DC2626;
}

/* ── Page bar ──────────────────────────────────────────────── */
.ep-pagebar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 14px;
    background: var(--bg-secondary, #F8FAFC);
    border: 1px solid var(--border-color, #E2E8F0);
    border-radius: 12px;
    flex-wrap: wrap;
}

.ep-pagebar-left,
.ep-pagebar-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.ep-nav-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border: 1px solid var(--border-color, #E2E8F0);
    border-radius: 8px;
    background: var(--bg-primary, #fff);
    cursor: pointer;
    color: var(--text-secondary);
    transition: border-color 0.15s, color 0.15s;
    flex-shrink: 0;
}

.ep-nav-btn:hover:not(:disabled) {
    border-color: #8B5CF6;
    color: #8B5CF6;
}

.ep-nav-btn:disabled {
    opacity: 0.35;
    cursor: default;
}

.ep-page-indicator {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-secondary);
    white-space: nowrap;
}

/* Output input */
.ep-output-input {
    height: 32px;
    padding: 0 10px;
    border: 1px solid var(--border-color, #E2E8F0);
    border-radius: 8px;
    background: var(--bg-primary, #fff);
    color: var(--text-primary);
    font-size: 0.8125rem;
    outline: none;
    min-width: 140px;
    max-width: 220px;
    transition: border-color 0.15s;
}

.ep-output-input:focus {
    border-color: #8B5CF6;
}

/* ── Status ────────────────────────────────────────────────── */
.ep-status {
    font-size: 0.875rem;
    padding: 8px 14px;
    border-radius: 8px;
    margin: 0;
}

.ep-status--success {
    background: rgba(16, 185, 129, 0.08);
    color: #059669;
    border: 1px solid rgba(16, 185, 129, 0.25);
}

.ep-status--error {
    background: rgba(239, 68, 68, 0.08);
    color: #DC2626;
    border: 1px solid rgba(239, 68, 68, 0.25);
}

.ep-status--info {
    background: rgba(139, 92, 246, 0.06);
    color: #7C3AED;
    border: 1px solid rgba(139, 92, 246, 0.2);
}

/* ── Progress bar ──────────────────────────────────────────── */
.ep-progress-wrap {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.ep-progress-bar {
    height: 6px;
    background: var(--border-color, #E2E8F0);
    border-radius: 999px;
    overflow: hidden;
}

.ep-progress-fill {
    height: 100%;
    background: #8B5CF6;
    border-radius: 999px;
    width: 0%;
    transition: width 0.3s ease;
}

.ep-progress-text {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    margin: 0;
    text-align: center;
}

/* ── Canvas loading overlay ────────────────────────────────── */
.ep-canvas-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 40px;
    text-align: center;
}

.ep-spinner {
    width: 34px;
    height: 34px;
    border: 3px solid rgba(139, 92, 246, 0.2);
    border-top-color: #8B5CF6;
    border-radius: 50%;
    animation: ep-spin 0.8s linear infinite;
}

@keyframes ep-spin {
    to {
        transform: rotate(360deg);
    }
}

.ep-canvas-loading p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    margin: 0;
}

/* ── Canvas wrapper + stacked canvases ─────────────────────── */
.ep-canvas-wrap {
    position: relative;
    /* width is set by JS to match base canvas;
       overflow hidden clips floating textarea if needed */
    display: inline-block;
    width: 100%;
    line-height: 0;
    /* remove bottom gap on inline canvas */
    touch-action: none;
    /* prevent scroll during drawing on mobile */
    border: 1px solid var(--border-color, #E2E8F0);
    border-radius: 12px;
    overflow: hidden;
    background: #e0e0e0;
    max-width: 100%;
}

#ep-base-canvas {
    display: block;
    width: 100%;
    max-width: 100%;
    border-radius: 12px;
}

#ep-anno-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: block;
    border-radius: 12px;
    /* Cursor changes per tool — set by JS */
}

/* Tool-specific cursors applied by JS via data attribute on canvas-wrap */
.ep-canvas-wrap[data-tool="pen"] #ep-anno-canvas {
    cursor: crosshair;
}

.ep-canvas-wrap[data-tool="highlight"] #ep-anno-canvas {
    cursor: crosshair;
}

.ep-canvas-wrap[data-tool="rect"] #ep-anno-canvas {
    cursor: crosshair;
}

.ep-canvas-wrap[data-tool="arrow"] #ep-anno-canvas {
    cursor: crosshair;
}

.ep-canvas-wrap[data-tool="text"] #ep-anno-canvas {
    cursor: text;
}

.ep-canvas-wrap[data-tool="select"] #ep-anno-canvas {
    cursor: default;
}

/* ── Floating text input (injected by JS) ──────────────────── */
.ep-text-input {
    position: absolute;
    border: 2px dashed rgba(139, 92, 246, 0.7);
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.9);
    padding: 2px 6px;
    font-family: sans-serif;
    outline: none;
    color: var(--text-primary);
    resize: none;
    min-width: 80px;
    min-height: 28px;
    z-index: 10;
    /* font-size set by JS based on selected size * displayScale */
}

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 767px) {
    .ep-toolbar {
        gap: 6px;
        padding: 8px 10px;
    }

    .ep-tool-label {
        display: none;
    }

    .ep-tool-btn {
        padding: 6px 7px;
    }

    .ep-action-btn .ep-tool-label {
        display: none;
    }

    .ep-pagebar {
        gap: 6px;
    }

    .ep-pagebar-right {
        width: 100%;
        justify-content: flex-end;
    }

    .ep-output-input {
        min-width: 100px;
        max-width: 140px;
    }
}

@media (max-width: 479px) {
    .ep-toolbar-sep {
        display: none;
    }

    .ep-prop-label {
        display: none;
    }
}

/* ── Custom color swatch (color picker) ────────────────────── */
.ep-swatch-custom {
    position: relative;
    overflow: hidden;
    cursor: pointer;
    background: conic-gradient(red, yellow, lime, cyan, blue, magenta, red);
}

.ep-swatch-custom input[type="color"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
    border: none;
    padding: 0;
}

/* ── Zoom group ────────────────────────────────────────────── */
.ep-zoom-group {
    display: flex;
    align-items: center;
    gap: 4px;
}

.ep-zoom-label {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-secondary);
    min-width: 40px;
    text-align: center;
}

/* ── Cursors for new tools ─────────────────────────────────── */
.ep-canvas-wrap[data-tool="circle"] #ep-anno-canvas,
.ep-canvas-wrap[data-tool="line"] #ep-anno-canvas {
    cursor: crosshair;
}

.ep-canvas-wrap[data-tool="eraser"] #ep-anno-canvas {
    cursor: cell;
}

.ep-canvas-wrap[data-tool="image"] #ep-anno-canvas {
    cursor: copy;
}

/* ── Image annotation resize handle ───────────────────────── */
.ep-img-handle {
    position: absolute;
    width: 10px;
    height: 10px;
    background: #8B5CF6;
    border: 2px solid #fff;
    border-radius: 50%;
    cursor: nwse-resize;
    z-index: 20;
    transform: translate(-50%, -50%);
}