/* ========================================================================
   Fillable PDF Workbook — Stylesheet
   ======================================================================== */

:root {
  --color-primary: #2f6feb;
  --color-primary-dark: #1f4fb8;
  --color-primary-light: #eaf1ff;
  --color-accent: #16a37a;
  --color-danger: #d64545;
  --color-warning: #b9740a;
  --color-ink: #1c2230;
  --color-ink-soft: #4b5468;
  --color-border: #e0e4ec;
  --color-border-strong: #c7cde0;
  --color-bg: #f5f7fb;
  --color-surface: #ffffff;
  --color-surface-alt: #f0f3f9;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(20, 30, 60, 0.06);
  --shadow-md: 0 6px 20px rgba(20, 30, 60, 0.10);
  --shadow-lg: 0 16px 40px rgba(20, 30, 60, 0.16);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  /* Hide obsolete pre-PayPal upgrade CTA */
#btn-go-upgrade-cta {
  display: none !important;
}
  font-family: var(--font);
  color: var(--color-ink);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; }
button { font-family: inherit; cursor: pointer; }
a { color: var(--color-primary); text-decoration: none; }
h1, h2, h3, h4, p { margin: 0; }

/* ---------- Layout shell ---------- */
#app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 50;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  color: var(--color-ink);
}
.brand i { color: var(--color-primary); font-size: 20px; }
.main-nav { display: flex; align-items: center; gap: 6px; }
.nav-btn {
  border: none;
  background: transparent;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-ink-soft);
}
.nav-btn:hover { background: var(--color-surface-alt); color: var(--color-ink); }
.nav-btn.active { background: var(--color-primary-light); color: var(--color-primary-dark); }
.plan-chip {
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--color-surface-alt);
  color: var(--color-ink-soft);
  border: 1px solid var(--color-border);
  margin-left: 6px;
}
.plan-chip.is-paid { background: #e9f8f0; color: var(--color-accent); border-color: #bfe9d6; }

main { min-height: calc(100vh - 60px); }
.view { display: none; }
.view.active { display: block; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--color-border-strong);
  background: var(--color-surface);
  color: var(--color-ink);
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  transition: all .15s ease;
  white-space: nowrap;
}
.btn:hover { background: var(--color-surface-alt); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); }
.btn-accent { background: var(--color-accent); border-color: var(--color-accent); color: #fff; }
.btn-accent:hover { filter: brightness(0.94); }
.btn-danger { background: #fff; border-color: #f0c4c4; color: var(--color-danger); }
.btn-danger:hover { background: #fdecec; }
.btn-ghost { border-color: transparent; background: transparent; }
.btn-ghost:hover { background: var(--color-surface-alt); }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn-block { width: 100%; justify-content: center; }

/* ================= HOME VIEW ================= */
.hero {
  padding: 64px 28px 40px;
  text-align: center;
  background: linear-gradient(180deg, #eef3ff 0%, var(--color-bg) 100%);
}
.hero h1 {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -0.5px;
  max-width: 720px;
  margin: 0 auto 14px;
}
.hero p.tagline {
  font-size: 18px;
  color: var(--color-ink-soft);
  max-width: 560px;
  margin: 0 auto 30px;
}
.upload-zone {
  max-width: 640px;
  margin: 0 auto;
  border: 2px dashed var(--color-border-strong);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  padding: 40px 24px;
  transition: border-color .15s ease, background .15s ease;
}
.upload-zone.dragover { border-color: var(--color-primary); background: var(--color-primary-light); }
.upload-zone i.upload-icon { font-size: 34px; color: var(--color-primary); margin-bottom: 12px; }
.upload-zone h3 { font-size: 17px; margin-bottom: 6px; }
.upload-zone p { color: var(--color-ink-soft); font-size: 14px; margin-bottom: 18px; }
.upload-hint { font-size: 12px; color: var(--color-ink-soft); margin-top: 14px; }
#file-input { display: none; }

.section-wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 40px 28px;
}
.section-title-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 18px;
}
.section-title-row h2 { font-size: 20px; font-weight: 700; }

.steps-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin-top: 10px;
}
.step-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px 14px;
  text-align: center;
}
.step-card .step-num {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 13px;
  margin: 0 auto 10px;
}
.step-card i { font-size: 20px; color: var(--color-primary); margin-bottom: 8px; display: block; }
.step-card h4 { font-size: 14px; margin-bottom: 4px; }
.step-card p { font-size: 12.5px; color: var(--color-ink-soft); }

.pricing-note {
  max-width: 640px;
  margin: 26px auto 0;
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  font-size: 13.5px;
  color: var(--color-ink-soft);
  text-align: center;
}

.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--color-ink-soft);
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-md);
}
.empty-state i { font-size: 28px; margin-bottom: 10px; display: block; color: var(--color-border-strong); }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}
.project-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: var(--shadow-sm);
}
.project-card h4 {
  font-size: 15px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.project-meta { font-size: 12px; color: var(--color-ink-soft); display: flex; flex-direction: column; gap: 2px; }
.project-locked-badge {
  font-size: 11px;
  font-weight: 700;
  color: var(--color-warning);
  background: #fdf3e0;
  border: 1px solid #f2dcac;
  padding: 2px 8px;
  border-radius: 999px;
  align-self: flex-start;
}
.project-actions { display: flex; gap: 6px; margin-top: 8px; flex-wrap: wrap; }

/* ================= PROJECTS TABLE VIEW ================= */
.projects-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

/* ================= EDITOR VIEW ================= */
#view-editor { display: none; }
#view-editor.active { display: flex; flex-direction: column; height: calc(100vh - 60px); }

.editor-topbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 20px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  flex-wrap: wrap;
}
.editor-topbar .proj-name-input {
  border: 1px solid transparent;
  font-weight: 700;
  font-size: 15px;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  background: transparent;
  min-width: 160px;
}
.editor-topbar .proj-name-input:hover, .editor-topbar .proj-name-input:focus {
  border-color: var(--color-border-strong);
  background: var(--color-surface-alt);
}
.topbar-spacer { flex: 1; }
.save-status { font-size: 12px; color: var(--color-ink-soft); min-width: 130px; }
.save-status i { margin-right: 4px; }

.editor-body {
  flex: 1;
  display: flex;
  overflow: hidden;
}

.editor-sidebar-left {
  width: 190px;
  border-right: 1px solid var(--color-border);
  background: var(--color-surface);
  overflow-y: auto;
  padding: 14px 10px;
  flex-shrink: 0;
}
.sidebar-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--color-ink-soft);
  padding: 0 6px 8px;
}
.page-thumb {
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  padding: 6px;
  margin-bottom: 8px;
  cursor: pointer;
  position: relative;
  text-align: center;
  background: var(--color-surface);
}
.page-thumb:hover { background: var(--color-surface-alt); }
.page-thumb.active { border-color: var(--color-primary); background: var(--color-primary-light); }
.page-thumb img { width: 100%; border: 1px solid var(--color-border); border-radius: 3px; display: block; box-shadow: var(--shadow-sm); }
.page-thumb .page-num-label { font-size: 11px; color: var(--color-ink-soft); margin-top: 4px; }
.page-thumb .field-dot {
  position: absolute;
  top: 4px; right: 4px;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 2px solid var(--color-surface);
}

.editor-canvas-area {
  flex: 1;
  overflow: auto;
  background: var(--color-surface-alt);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 26px 26px 80px;
  position: relative;
}
.canvas-toolbar {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 6px 10px;
  box-shadow: var(--shadow-sm);
}
.canvas-toolbar .page-indicator { font-size: 13px; font-weight: 600; padding: 0 8px; min-width: 70px; text-align: center; }
.canvas-toolbar .zoom-indicator { font-size: 12px; color: var(--color-ink-soft); min-width: 44px; text-align: center; }

.page-stage {
  position: relative;
  background: #fff;
  box-shadow: var(--shadow-lg);
}
.page-stage canvas { display: block; }
.field-overlay {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
}
.field-overlay.add-mode { cursor: crosshair; }

.field-box {
  position: absolute;
  border: 1.5px solid var(--color-primary);
  background: rgba(47, 111, 235, 0.10);
  border-radius: 3px;
  cursor: move;
  display: flex;
  align-items: center;
  padding: 0 4px;
  overflow: hidden;
  user-select: none;
  /* Scoped to draggable field overlays only: stops the browser's native
     touch-scroll/pan gesture from competing with a touch-drag that starts
     on a field box, without disabling scrolling anywhere else on the page
     (the surrounding .editor-canvas-area / .page-stage keep default
     touch-action and remain scrollable on mobile). */
  touch-action: none;
}
.field-box .field-box-label {
  font-size: 10.5px;
  font-weight: 600;
  color: var(--color-primary-dark);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  pointer-events: none;
}
.field-box[data-type="checkbox"] { background: rgba(22, 163, 122, .12); border-color: var(--color-accent); }
.field-box[data-type="checkbox"] .field-box-label { color: #0f7d5c; }
.field-box[data-type="radio"] { background: rgba(22, 163, 122, .08); border-color: var(--color-accent); border-style: dashed; }
.field-box[data-type="dropdown"] { background: rgba(184, 116, 10, .10); border-color: var(--color-warning); }
.field-box[data-type="dropdown"] .field-box-label { color: var(--color-warning); }
.field-box[data-type="date"] { background: rgba(140, 90, 220, .10); border-color: #8c5adc; }
.field-box[data-type="date"] .field-box-label { color: #6f3fc2; }
.field-box.selected {
  border-width: 2px;
  box-shadow: 0 0 0 3px rgba(47,111,235,0.18);
  z-index: 5;
}
.field-box .required-star { color: var(--color-danger); margin-left: 3px; font-weight: 700; }
.resize-handle {
  position: absolute;
  width: 11px; height: 11px;
  background: var(--color-primary);
  border: 2px solid #fff;
  border-radius: 50%;
  right: -6px; bottom: -6px;
  cursor: nwse-resize;
  touch-action: none;
}
.field-box:not(.selected) .resize-handle { display: none; }

.editor-sidebar-right {
  width: 280px;
  border-left: 1px solid var(--color-border);
  background: var(--color-surface);
  overflow-y: auto;
  flex-shrink: 0;
  padding: 16px;
}
.field-toolbox {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 20px;
}
.field-tool-btn {
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  border-radius: var(--radius-sm);
  padding: 12px 6px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-ink-soft);
}
.field-tool-btn i { font-size: 17px; color: var(--color-primary); }
.field-tool-btn:hover { border-color: var(--color-primary); background: var(--color-primary-light); }
.field-tool-btn.active-tool { border-color: var(--color-primary); background: var(--color-primary-light); color: var(--color-primary-dark); }

.props-panel h3 { font-size: 13px; text-transform: uppercase; letter-spacing: .04em; color: var(--color-ink-soft); margin-bottom: 12px; }
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 12.5px; font-weight: 600; margin-bottom: 5px; color: var(--color-ink-soft); }
.form-group input[type="text"], .form-group textarea, .form-group select {
  width: 100%;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  font-size: 13.5px;
  font-family: inherit;
  color: var(--color-ink);
}
.form-group input[type="text"]:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none;
  border-color: var(--color-primary);
}
.checkbox-row { display: flex; align-items: center; gap: 8px; }
.checkbox-row input { width: 16px; height: 16px; }
.checkbox-row label { margin: 0; }

.options-list { display: flex; flex-direction: column; gap: 6px; margin-bottom: 8px; }
.option-row { display: flex; gap: 6px; align-items: center; }
.option-row input { flex: 1; }
.option-row button { border: none; background: transparent; color: var(--color-danger); font-size: 14px; padding: 4px; }

.props-actions { display: flex; gap: 8px; margin-top: 18px; }
.no-selection-hint {
  text-align: center;
  color: var(--color-ink-soft);
  font-size: 13px;
  padding: 30px 10px;
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-md);
}
.no-selection-hint i { display: block; font-size: 22px; margin-bottom: 10px; color: var(--color-border-strong); }

.locked-banner {
  display: none;
  background: #fdf3e0;
  border-bottom: 1px solid #f2dcac;
  color: var(--color-warning);
  font-size: 13px;
  font-weight: 600;
  padding: 10px 20px;
  text-align: center;
}
.locked-banner.show { display: block; }
.locked-banner a { font-weight: 700; }

/* ================= PREVIEW VIEW ================= */
#view-preview.active { display: flex; flex-direction: column; height: calc(100vh - 60px); }
.preview-topbar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 20px;
  background: #1c2230;
  color: #fff;
}
.preview-topbar .preview-tag {
  background: rgba(255,255,255,0.14);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 999px;
}
.preview-topbar .topbar-spacer { flex: 1; }
.preview-topbar .btn { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.2); color: #fff; }
.preview-topbar .btn:hover { background: rgba(255,255,255,0.18); }
.preview-topbar .btn-primary { background: var(--color-primary); border-color: var(--color-primary); }

.preview-body { flex: 1; overflow: auto; display: flex; flex-direction: column; align-items: center; padding: 26px; background: #e7eaf1; }
.preview-nav { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; background: #fff; border-radius: var(--radius-md); padding: 8px 14px; box-shadow: var(--shadow-sm); }

.preview-stage { position: relative; background: #fff; box-shadow: var(--shadow-lg); margin-bottom: 30px; }
.preview-stage canvas { display: block; }
.preview-field-layer { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }
.pf-input {
  position: absolute;
  box-sizing: border-box;
  border: 1.5px solid #90a4d4;
  border-radius: 3px;
  background: rgba(255,255,255,0.92);
  font-family: inherit;
  font-size: 12px;
  padding: 2px 5px;
  color: var(--color-ink);
}
.pf-input:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(47,111,235,.18); }
.pf-checkbox-wrap, .pf-radio-wrap { position: absolute; box-sizing: border-box; display: flex; flex-direction: column; gap: 3px; overflow: auto; }
.pf-checkbox-wrap { justify-content: center; align-items: flex-start; }
.pf-option-row { display: flex; align-items: center; gap: 6px; font-size: 11.5px; }
/* Conventional small square/round checkbox and radio glyphs: a fixed,
   consistent on-screen size regardless of how large the creator resizes
   the field's layout rectangle — the rectangle only ever affects
   placement/available room, never the glyph's own size. Matches the same
   "container vs. glyph" rule applied to the exported PDF in exporter.js. */
.pf-option-row input[type="checkbox"],
.pf-option-row input[type="radio"] {
  width: 15px;
  height: 15px;
  margin: 0;
  flex-shrink: 0;
  accent-color: var(--color-primary);
}

/* ================= UPGRADE VIEW ================= */
.upgrade-wrap { max-width: 760px; margin: 0 auto; padding: 50px 28px; }
.plan-compare { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin: 30px 0; }
.plan-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 26px; }
.plan-card.highlight { border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-light); }
.plan-card h3 { font-size: 18px; margin-bottom: 4px; }
.plan-card .price { font-size: 30px; font-weight: 800; margin: 10px 0; }
.plan-card .price span { font-size: 14px; font-weight: 500; color: var(--color-ink-soft); }
.plan-card ul { list-style: none; padding: 0; margin: 16px 0 20px; display: flex; flex-direction: column; gap: 10px; }
.plan-card ul li { font-size: 13.5px; color: var(--color-ink-soft); display: flex; gap: 8px; }
.plan-card ul li i { color: var(--color-accent); margin-top: 2px; }

.paypal-upgrade-box {
  margin-top: 30px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  background: #fffaf0;
}
.paypal-upgrade-box h4 {
  font-size: 14px;
  color: var(--color-ink);
  letter-spacing: .01em;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.paypal-upgrade-box h4 i { color: #003087; font-size: 16px; }
.paypal-upgrade-box p { font-size: 12.5px; color: var(--color-ink-soft); margin-bottom: 14px; line-height: 1.5; }
#paypal-button-container { min-height: 44px; margin-bottom: 10px; }
#paypal-button-container p { font-size: 12.5px; color: var(--color-ink-soft); margin: 0; }
.status-line { font-size: 13px; font-weight: 600; }

/* ================= Modals & toasts ================= */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(20,25,40,0.5);
  display: none; align-items: center; justify-content: center; z-index: 200; padding: 20px;
}
.modal-backdrop.show { display: flex; }
.modal-box {
  background: #fff; border-radius: var(--radius-lg); padding: 26px; max-width: 440px; width: 100%;
  box-shadow: var(--shadow-lg);
}
.modal-box h3 { font-size: 17px; margin-bottom: 10px; display: flex; align-items: center; gap: 10px; }
.modal-box h3 i { color: var(--color-warning); }
.modal-box p { font-size: 14px; color: var(--color-ink-soft); line-height: 1.5; margin-bottom: 18px; }
.modal-box input[type="text"] {
  width: 100%; padding: 9px 12px; border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm);
  font-size: 14px; margin-bottom: 18px; font-family: inherit;
}
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; }

#toast-container {
  position: fixed; bottom: 24px; right: 24px; z-index: 300;
  display: flex; flex-direction: column; gap: 10px; max-width: 340px;
}
.toast {
  background: #1c2230; color: #fff; padding: 12px 16px; border-radius: var(--radius-sm);
  font-size: 13.5px; box-shadow: var(--shadow-md); display: flex; align-items: flex-start; gap: 10px;
  animation: toast-in .18s ease;
}
.toast i { margin-top: 1px; }
.toast.toast-success i { color: #6bdcae; }
.toast.toast-error { background: #4a1f24; }
.toast.toast-error i { color: #ef8b8b; }
.toast.toast-info i { color: #8ab6ff; }
@keyframes toast-in { from { opacity:0; transform: translateY(8px); } to { opacity:1; transform: translateY(0); } }

footer.site-footer {
  text-align: center; padding: 22px; font-size: 12.5px; color: var(--color-ink-soft);
  border-top: 1px solid var(--color-border); background: var(--color-surface);
}

/* ================= Responsive ================= */
@media (max-width: 900px) {
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .plan-compare { grid-template-columns: 1fr; }
  .editor-sidebar-left { display: none; }
  .editor-sidebar-right { width: 240px; }
}
@media (max-width: 640px) {
  .hero h1 { font-size: 26px; }
  .hero p.tagline { font-size: 15px; }
  #app-header { padding: 12px 16px; }
  .main-nav .nav-btn span.txt { display: none; }
  .steps-grid { grid-template-columns: 1fr 1fr; }
  #view-editor.active { height: auto; }
  .editor-body { flex-direction: column; height: auto; overflow: visible; }
  .editor-sidebar-left, .editor-sidebar-right { width: 100%; border: none; border-top: 1px solid var(--color-border); }
  .editor-canvas-area { padding: 16px; }
  .field-toolbox { grid-template-columns: repeat(3, 1fr); }
}