/* ============================================================
   PDF Editor — "Rich Light" shell. Category accent: documents = amber.
   Reuses the shared editor-shell class names; tokens from style.css :root.
   ============================================================ */
:root { --pg: var(--cat-doc); --pg-hover: #b45309; --pg-text: var(--cat-doc-text);
        --pg-subtle: var(--cat-doc-bg); --pg-border: var(--cat-doc-border);
        --pg-ring: rgba(217, 119, 6, 0.16); }

.editor-main { padding-top: 60px; min-height: 100vh; background: var(--bg-inset); }
.editor-section { display: flex; flex-direction: column; height: calc(100vh - 60px); }

/* Toolbar */
.editor-toolbar {
    display: flex; align-items: center; justify-content: space-between;
    height: 48px; padding: 0 12px; background: #fff;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 1px 8px rgba(30, 27, 75, 0.04);
    position: relative; z-index: 20; gap: 12px; flex-shrink: 0;
}
.toolbar-left, .toolbar-center, .toolbar-right { display: flex; align-items: center; gap: 6px; }
.toolbar-center { flex: 1; justify-content: center; }
.toolbar-btn {
    display: inline-flex; align-items: center; gap: 6px; height: 32px; padding: 0 12px;
    background: #fff; border: 1px solid var(--border-strong); border-radius: var(--r-sm);
    color: var(--text-secondary); font-family: var(--font-sans); font-size: 0.8125rem;
    font-weight: 500; cursor: pointer; text-decoration: none;
    transition: background var(--t-fast), border-color var(--t-fast), color var(--t-fast);
}
.toolbar-btn:hover { background: var(--bg-inset); color: var(--text-primary); }
.toolbar-btn.primary {
    background: var(--grad-btn); border: none; color: #fff; box-shadow: var(--shadow-btn-brand);
}
.toolbar-btn.primary:hover { background: var(--grad-btn-hover); box-shadow: var(--shadow-btn-brand-hover); }
.toolbar-btn:focus-visible { outline: none; box-shadow: var(--focus-ring); }
.pdf-info {
    font-family: var(--font-mono); font-size: 0.75rem; font-weight: 500;
    font-variant-numeric: tabular-nums; color: var(--text-muted);
    background: #fff; border: 1px solid var(--border); border-radius: var(--r-full);
    padding: 4px 12px; white-space: nowrap; box-shadow: var(--shadow-xs);
}

/* Container */
.editor-container { display: flex; flex: 1; gap: 0; overflow: hidden; }

/* Tools sidebar */
.tools-panel {
    width: 200px; background: var(--wash-panel); border-right: 1px solid var(--border);
    padding: 12px 8px; overflow-y: auto; flex-shrink: 0;
}
.tools-section { margin-bottom: 20px; }
.tools-section-title {
    font-size: 0.6875rem; font-weight: 600; text-transform: uppercase;
    letter-spacing: 0.07em; color: var(--text-muted); padding: 0 8px 6px;
}
.tool-btn {
    display: flex; align-items: center; gap: 10px; width: 100%; height: 32px; padding: 0 8px;
    background: none; border: none; border-radius: var(--r-sm); color: var(--text-secondary);
    font-family: var(--font-sans); font-size: 0.8125rem; font-weight: 500; cursor: pointer;
    text-align: left; transition: background var(--t-fast), color var(--t-fast);
}
.tool-btn svg { flex-shrink: 0; width: 16px; height: 16px; stroke-width: 1.75; color: var(--text-muted); }
.tool-btn:hover { background: var(--bg-inset); color: var(--text-primary); }
.tool-btn.active {
    background: var(--pg-subtle); color: var(--pg-text); font-weight: 600;
    box-shadow: inset 2.5px 0 0 var(--pg), inset 0 0 0 1px var(--pg-border);
}
.tool-btn.active svg { color: var(--pg); }
.tool-btn:focus-visible { outline: none; box-shadow: var(--focus-ring); }

/* Preview area — light page stage */
.preview-area {
    flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: flex-start;
    background: var(--bg-inset); overflow-y: auto; min-width: 0; padding: 24px;
}

/* Upload placeholder */
.pdf-upload-placeholder {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    width: 100%; max-width: 520px; margin: auto; padding: 48px 40px; position: relative;
    background: #fff; border: 1.5px dashed var(--border-strong); border-radius: var(--r-xl);
    box-shadow: var(--e1); transition: border-color var(--t-base), box-shadow var(--t-base);
}
.pdf-upload-placeholder:hover { border-color: var(--pg-border); box-shadow: var(--e2); }
.pdf-upload-placeholder.dragover {
    border-color: var(--pg); border-style: solid;
    box-shadow: 0 0 0 4px var(--pg-ring), var(--e2);
}
.pdf-upload-placeholder .file-input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.pdf-upload-placeholder .upload-content { display: flex; flex-direction: column; align-items: center; text-align: center; pointer-events: none; }
.dz-icon {
    width: 64px; height: 64px; margin: 0 auto 20px; display: flex; align-items: center; justify-content: center;
    border-radius: 18px; background: var(--cat-doc-grad); color: #fff; box-shadow: var(--e1);
}
.dz-icon svg { width: 28px; height: 28px; }
.upload-content h2 { font-size: 1.125rem; font-weight: 600; color: var(--text-primary); margin-bottom: 8px; }
.upload-content p { font-size: 0.875rem; color: var(--text-muted); margin-bottom: 16px; }
.upload-button.primary-button {
    pointer-events: auto; height: 40px; padding: 0 20px; border: none; border-radius: var(--r-sm);
    background: var(--grad-btn); color: #fff; font-family: var(--font-sans); font-size: 0.875rem;
    font-weight: 600; cursor: pointer; box-shadow: var(--shadow-btn-brand);
}
.upload-button.primary-button:hover { background: var(--grad-btn-hover); box-shadow: var(--shadow-btn-brand-hover); }
.upload-hint { margin-top: 12px !important; font-size: 0.8125rem; }
.supported-formats { font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-disabled); margin-top: 4px !important; }

/* Page thumbnails grid */
.pdf-pages {
    display: flex; flex-wrap: wrap; gap: 16px; align-content: flex-start;
    justify-content: center; width: 100%; padding: 8px 0 24px;
}
.pdf-page-card {
    position: relative; width: 150px; background: #fff; border: 1px solid var(--border-lifted);
    border-radius: var(--r-sm); box-shadow: var(--e1); overflow: hidden;
    transition: transform var(--t-lift), box-shadow var(--t-lift);
}
.pdf-page-card:hover { transform: translateY(-2px); box-shadow: var(--e2); }
.pdf-page-card img { display: block; width: 100%; height: auto; background: var(--bg-inset); }
.pdf-page-num {
    position: absolute; bottom: 6px; right: 6px; font-family: var(--font-mono); font-size: 0.6875rem;
    font-weight: 600; color: #fff; background: rgba(23, 24, 28, 0.72); border-radius: var(--r-full);
    padding: 1px 8px; min-width: 20px; text-align: center;
}

/* Options panel */
.options-panel {
    width: 288px; background: #fff; border-left: 1px solid var(--border); padding: 20px;
    overflow-y: auto; flex-shrink: 0;
}
.options-empty { color: var(--text-muted); font-size: 0.875rem; }
.options-panel h3 { font-size: 1rem; font-weight: 600; color: var(--text-primary); margin-bottom: 6px; }
.opt-hint { font-size: 0.8125rem; color: var(--text-muted); margin-bottom: 14px; }
.opt-label { display: block; font-size: 0.8125rem; font-weight: 500; color: var(--text-secondary); margin: 14px 0 6px; }
.opt-mono { font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-muted); font-weight: 400; }
.options-panel input[type="text"], .options-panel input[type="password"],
.options-panel input[type="number"], .options-panel select, .options-panel input[type="file"] {
    width: 100%; height: 36px; padding: 0 10px; font-family: var(--font-sans); font-size: 0.875rem;
    color: var(--text-primary); background: #fff; border: 1px solid var(--border-strong);
    border-radius: var(--r-sm); box-shadow: inset 0 1px 2px rgba(30, 27, 75, 0.04);
}
.options-panel input[type="file"] { height: auto; padding: 8px 10px; }
.options-panel input:focus-visible, .options-panel select:focus-visible {
    outline: none; border-color: var(--pg); box-shadow: 0 0 0 3px var(--pg-ring);
}
.options-panel input[type="range"] { box-shadow: none; padding: 0; height: 20px; accent-color: var(--pg); }
.opt-check { display: flex; align-items: center; gap: 8px; margin: 12px 0; font-size: 0.8125rem; color: var(--text-secondary); }
.opt-check input { width: auto !important; height: auto !important; accent-color: var(--pg); }
.pdf-file-chips { list-style: none; margin: 8px 0 0; padding: 0; }
.pdf-file-chips li {
    font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-secondary);
    background: var(--bg-inset); border-radius: var(--r-xs); padding: 4px 8px; margin-bottom: 4px;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.pdf-run-btn.primary-button {
    width: 100%; height: 40px; margin-top: 20px; border: none; border-radius: var(--r-sm);
    background: var(--grad-btn); color: #fff; font-family: var(--font-sans); font-size: 0.875rem;
    font-weight: 600; cursor: pointer; box-shadow: var(--shadow-btn-brand);
}
.pdf-run-btn.primary-button:hover:not(:disabled) { background: var(--grad-btn-hover); box-shadow: var(--shadow-btn-brand-hover); }
.pdf-run-btn:disabled { background: var(--bg-inset); color: var(--text-disabled); box-shadow: none; cursor: default; }

/* Result banner */
.pdf-result-banner {
    margin-top: 18px; padding: 14px; border-radius: var(--r-md);
    background: var(--success-subtle); border: 1px solid var(--success-border);
    display: flex; flex-direction: column; gap: 8px; font-size: 0.8125rem; color: var(--success);
}
.pdf-link-btn {
    display: inline-flex; align-items: center; justify-content: center; height: 32px; padding: 0 14px;
    border-radius: var(--r-sm); font-size: 0.8125rem; font-weight: 600; text-decoration: none; cursor: pointer;
    border: 1px solid var(--border-strong); background: #fff; color: var(--text-primary);
}
.pdf-link-btn.primary { background: var(--grad-btn); color: #fff; border: none; box-shadow: var(--shadow-btn-brand); }

/* Toasts */
.toast-host { position: fixed; bottom: 20px; right: 20px; display: flex; flex-direction: column; gap: 8px; z-index: 200; }
.toast {
    background: #fff; border-radius: var(--r-md); box-shadow: var(--e3); padding: 12px 16px;
    font-size: 0.875rem; color: var(--text-primary); border-left: 3px solid var(--text-muted);
    max-width: 340px; transition: opacity var(--t-base), transform var(--t-base);
}
.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--error-strong); }
.toast.fade-out { opacity: 0; transform: translateY(8px); }

/* ============================================================
   Mode switch (segmented control)
   ============================================================ */
.mode-switch {
    display: inline-flex; gap: 2px; padding: 3px;
    background: var(--bg-inset); border: 1px solid var(--border); border-radius: var(--r-full);
}
.mode-tab {
    height: 28px; padding: 0 14px; border: none; background: none; border-radius: var(--r-full);
    font-family: var(--font-sans); font-size: 0.8125rem; font-weight: 500; color: var(--text-secondary);
    cursor: pointer; white-space: nowrap; transition: background var(--t-fast), color var(--t-fast), box-shadow var(--t-fast);
}
.mode-tab:hover { color: var(--text-primary); }
.mode-tab.active {
    background: #fff; color: var(--pg-text); font-weight: 600;
    box-shadow: var(--shadow-xs), inset 0 0 0 1px var(--pg-border);
}
.mode-tab:focus-visible { outline: none; box-shadow: var(--focus-ring); }

/* ============================================================
   ORGANIZE — interactive manifest grid
   ============================================================ */
.organize-grid {
    display: flex; flex-wrap: wrap; gap: 18px; align-content: flex-start;
    justify-content: center; width: 100%; padding: 8px 0 24px;
}
.organize-card {
    position: relative; width: 132px; cursor: grab;
    border-radius: var(--r-sm); transition: transform var(--t-lift);
}
.organize-card:focus-visible { outline: none; box-shadow: var(--focus-ring); border-radius: var(--r-sm); }
.organize-card.dragging { opacity: 0.45; cursor: grabbing; }
.organize-card.drop-target { transform: translateX(6px); }
.organize-card.drop-target .oc-thumb { box-shadow: 0 0 0 2px var(--pg), var(--e2); }
.oc-thumb {
    position: relative; width: 132px; height: 170px; background: #fff;
    border: 1px solid var(--border-lifted); border-radius: var(--r-sm); box-shadow: var(--e1);
    overflow: hidden; display: flex; align-items: center; justify-content: center;
    transition: box-shadow var(--t-lift);
}
.organize-card:hover .oc-thumb { box-shadow: var(--e2); }
.oc-thumb img { display: block; width: 100%; height: auto; background: var(--bg-inset); transition: transform var(--t-base); }
.oc-thumb img.oc-quarter { width: 76%; }
.oc-blank { background: repeating-linear-gradient(45deg, var(--bg-inset), var(--bg-inset) 8px, #fff 8px, #fff 16px); }
.oc-blank span { font-size: 0.75rem; font-weight: 600; color: var(--text-muted); text-align: center; line-height: 1.4; }
.oc-blank small { font-family: var(--font-mono); font-size: 0.6875rem; color: var(--text-disabled); text-transform: uppercase; }
.oc-pos {
    position: absolute; top: 6px; left: 6px; font-family: var(--font-mono); font-size: 0.6875rem;
    font-weight: 700; color: #fff; background: var(--pg); border-radius: var(--r-full);
    min-width: 20px; height: 20px; display: flex; align-items: center; justify-content: center; padding: 0 6px;
}
.oc-src {
    position: absolute; bottom: 6px; right: 6px; font-family: var(--font-mono); font-size: 0.625rem;
    font-weight: 600; color: var(--text-secondary); background: rgba(255,255,255,0.9);
    border: 1px solid var(--border); border-radius: var(--r-full); padding: 1px 6px;
}
.oc-ctrls {
    position: absolute; top: 0; left: 0; right: 0; display: flex; justify-content: center; gap: 4px;
    padding: 6px; background: linear-gradient(rgba(23,24,28,0.55), transparent);
    opacity: 0; transition: opacity var(--t-fast);
}
.organize-card:hover .oc-ctrls, .organize-card:focus-within .oc-ctrls { opacity: 1; }
.oc-btn {
    width: 26px; height: 26px; padding: 0; display: flex; align-items: center; justify-content: center;
    background: #fff; border: 1px solid var(--border-strong); border-radius: var(--r-xs);
    color: var(--text-secondary); cursor: pointer; box-shadow: var(--shadow-xs);
    transition: background var(--t-fast), color var(--t-fast);
}
.oc-btn svg { width: 14px; height: 14px; }
.oc-btn:hover { background: var(--pg-subtle); color: var(--pg-text); }
.oc-btn.danger:hover { background: var(--error-subtle, #fef2f2); color: var(--error-strong); border-color: var(--error-border, #fecaca); }
.oc-btn:focus-visible { outline: none; box-shadow: var(--focus-ring); }

.opt-inline { display: flex; align-items: center; gap: 8px; }
.opt-inline select { flex: 1; }
.opt-inline input[type="color"] { width: 40px; height: 32px; padding: 2px; cursor: pointer; }
.opt-inline input[type="range"] { flex: 1; }
.opt-details { margin-top: 16px; border-top: 1px solid var(--border); padding-top: 8px; }
.opt-details summary { cursor: pointer; font-size: 0.8125rem; font-weight: 600; color: var(--text-secondary); padding: 6px 0; }
.opt-details summary:hover { color: var(--pg-text); }
.opt-note { font-size: 0.75rem; color: var(--text-muted); margin-top: 8px; min-height: 1em; }
.opt-note.warn { color: var(--pg-hover); }
.pdf-banner-row { display: flex; gap: 8px; flex-wrap: wrap; }
.pdf-link-btn.toggle-on { background: var(--pg-subtle); color: var(--pg-text); border-color: var(--pg-border); }

/* ============================================================
   PAGE STAGE (Edit Text + Annotate)
   ============================================================ */
.page-stage { display: flex; flex-direction: column; align-items: center; gap: 14px; width: 100%; }
.page-picker {
    display: flex; gap: 8px; overflow-x: auto; max-width: 100%; padding: 6px 4px 10px;
    scrollbar-width: thin; flex-shrink: 0;
}
.pp-thumb {
    position: relative; flex: 0 0 auto; width: 56px; padding: 0; background: #fff;
    border: 1px solid var(--border-lifted); border-radius: var(--r-xs); cursor: pointer; overflow: hidden;
    box-shadow: var(--shadow-xs); transition: box-shadow var(--t-fast), transform var(--t-fast);
}
.pp-thumb img { display: block; width: 100%; height: auto; background: var(--bg-inset); }
.pp-thumb span {
    position: absolute; bottom: 2px; right: 2px; font-family: var(--font-mono); font-size: 0.5625rem;
    font-weight: 600; color: #fff; background: rgba(23,24,28,0.7); border-radius: var(--r-full); padding: 0 5px;
}
.pp-thumb:hover { transform: translateY(-1px); box-shadow: var(--e1); }
.pp-thumb.active { box-shadow: 0 0 0 2px var(--pg); }
.pp-thumb:focus-visible { outline: none; box-shadow: var(--focus-ring); }

.stage-wrap {
    position: relative; background: #fff; box-shadow: var(--e2); border-radius: 2px;
    max-width: 100%; overflow: hidden;
}
.stage-wrap .stage-bg { display: block; width: 100%; height: 100%; user-select: none; -webkit-user-drag: none; }
.stage-loading { padding: 60px 40px; color: var(--text-muted); font-size: 0.875rem; }
.canvas-container { border-radius: 2px; }

/* Edit-text overlay boxes */
.et-layer { position: absolute; inset: 0; }
.et-layer.placing { cursor: crosshair; }
.et-box {
    position: absolute; box-sizing: border-box; line-height: 1.05; white-space: pre;
    background: rgba(217,119,6,0.10); border: 1px solid rgba(217,119,6,0.45); border-radius: 2px;
    cursor: text; overflow: hidden; font-family: var(--font-sans);
    transition: background var(--t-fast), border-color var(--t-fast);
}
.et-box:hover { background: rgba(217,119,6,0.18); }
.et-box.editing { background: #fff; border: 1.5px solid var(--pg); box-shadow: 0 0 0 3px var(--pg-ring); overflow: visible; z-index: 5; }
.et-box.dirty { border-color: var(--success); background: rgba(16,185,129,0.12); }
.et-box:focus-visible { outline: none; box-shadow: 0 0 0 2px var(--pg); }
.et-box.add {
    background: rgba(255,255,255,0.92); border: 1.5px dashed var(--pg); min-width: 40px; white-space: nowrap;
    padding: 1px 3px; z-index: 6;
}
.et-add-del {
    position: absolute; width: 16px; height: 16px; margin-left: -8px; margin-top: -8px;
    border: none; border-radius: 50%; background: var(--error-strong); color: #fff; font-size: 12px;
    line-height: 1; cursor: pointer; z-index: 7; display: flex; align-items: center; justify-content: center;
}

/* Annotate toolbar */
.an-tools { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.an-tool {
    height: 30px; padding: 0 10px; border: 1px solid var(--border-strong); border-radius: var(--r-sm);
    background: #fff; color: var(--text-secondary); font-family: var(--font-sans); font-size: 0.75rem;
    font-weight: 500; cursor: pointer; transition: background var(--t-fast), color var(--t-fast), border-color var(--t-fast);
}
.an-tool:hover { background: var(--bg-inset); color: var(--text-primary); }
.an-tool.active { background: var(--pg-subtle); color: var(--pg-text); border-color: var(--pg-border); font-weight: 600; }
.an-tool:focus-visible { outline: none; box-shadow: var(--focus-ring); }

.stage-nav { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 12px; }
.stage-nav .pdf-link-btn { width: 40px; padding: 0; font-size: 1.1rem; }
.stage-nav-label { font-family: var(--font-mono); font-size: 0.75rem; font-weight: 600; color: var(--text-secondary); }

/* Responsive */
@media (max-width: 1024px) {
    .options-panel { width: 240px; }
    .tools-panel { width: 168px; }
    .mode-tab { padding: 0 10px; }
}
@media (max-width: 768px) {
    .editor-container { flex-direction: column; }
    .editor-toolbar { flex-wrap: wrap; height: auto; padding: 8px 12px; }
    .toolbar-center { flex: 1 0 100%; order: 3; }
    .mode-switch { width: 100%; justify-content: space-between; }
    .tools-panel { width: 100%; display: flex; flex-wrap: wrap; gap: 4px; border-right: none; border-bottom: 1px solid var(--border); }
    .tools-section { margin-bottom: 8px; }
    .options-panel { width: 100%; border-left: none; border-top: 1px solid var(--border); }
    .editor-section { height: auto; }
    .preview-area { min-height: 40vh; }
}