/*
 * QPG Pro — Main Stylesheet v1.2.0
 * Question Paper Generator Pro
 * Modern, responsive, PWA-style design
 * Compatible with WordPress + Blocksy Theme
 * ================================================
 */

/* ============================================================
   0. GOOGLE FONTS
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Noto+Sans+Devanagari:wght@400;500;600;700&family=Tiro+Devanagari+Hindi&display=swap');

/* ============================================================
   1. DESIGN TOKENS
   ============================================================ */
.qpg-wrap {
  --qpg-primary:       #4F46E5;
  --qpg-primary-dark:  #4338CA;
  --qpg-primary-light: #EEF2FF;
  --qpg-accent:        #7C3AED;
  --qpg-success:       #10B981;
  --qpg-danger:        #EF4444;
  --qpg-danger-bg:     #FEF2F2;

  --qpg-bg:            #F8FAFC;
  --qpg-card:          #FFFFFF;
  --qpg-card-hover:    #FAFAFE;
  --qpg-muted-bg:      #F1F5F9;

  --qpg-text:          #1E293B;
  --qpg-text-muted:    #64748B;
  --qpg-text-faint:    #94A3B8;

  --qpg-border:        #E2E8F0;
  --qpg-border-light:  #F1F5F9;
  --qpg-input-border:  #CBD5E1;
  --qpg-focus-ring:    rgba(79, 70, 229, 0.25);

  --qpg-shadow-xs:  0 1px 2px rgba(15,23,42,0.04);
  --qpg-shadow-sm:  0 2px 6px rgba(15,23,42,0.06), 0 1px 2px rgba(15,23,42,0.04);
  --qpg-shadow-md:  0 4px 12px rgba(15,23,42,0.08), 0 2px 4px rgba(15,23,42,0.04);
  --qpg-shadow-lg:  0 8px 24px rgba(15,23,42,0.10), 0 4px 8px rgba(15,23,42,0.04);
  --qpg-shadow-xl:  0 16px 40px rgba(15,23,42,0.14);

  --qpg-radius-sm:   6px;
  --qpg-radius-md:   10px;
  --qpg-radius-lg:   14px;
  --qpg-radius-xl:   18px;
  --qpg-radius-full: 999px;

  --qpg-transition: all 0.18s ease;
  --qpg-font: 'Inter', 'Noto Sans Devanagari', system-ui, -apple-system, sans-serif;
}

/* Dark Mode */
.qpg-wrap[data-theme="dark"] {
  --qpg-primary:       #6366F1;
  --qpg-primary-dark:  #4F46E5;
  --qpg-primary-light: #1E1B4B;
  --qpg-bg:            #0F172A;
  --qpg-card:          #1E293B;
  --qpg-card-hover:    #253347;
  --qpg-muted-bg:      #162032;
  --qpg-text:          #E2E8F0;
  --qpg-text-muted:    #94A3B8;
  --qpg-text-faint:    #64748B;
  --qpg-border:        #334155;
  --qpg-border-light:  #1E293B;
  --qpg-input-border:  #475569;
  --qpg-focus-ring:    rgba(99,102,241,0.3);
  --qpg-shadow-xs:  0 1px 2px rgba(0,0,0,0.2);
  --qpg-shadow-sm:  0 2px 6px rgba(0,0,0,0.25);
  --qpg-shadow-md:  0 4px 12px rgba(0,0,0,0.3);
  --qpg-shadow-lg:  0 8px 24px rgba(0,0,0,0.35);
  --qpg-shadow-xl:  0 16px 40px rgba(0,0,0,0.4);
  --qpg-danger-bg:     #2D1B1B;
}

/* ============================================================
   2. BASE
   ============================================================ */
.qpg-wrap {
  max-width: 1100px;
  margin: 24px auto;
  font-family: var(--qpg-font);
  color: var(--qpg-text);
  background: var(--qpg-bg);
  padding: 16px;
  border-radius: var(--qpg-radius-xl);
  box-sizing: border-box;
  line-height: 1.6;
}
.qpg-wrap *, .qpg-wrap *::before, .qpg-wrap *::after { box-sizing: border-box; }

/* ============================================================
   3. TOPBAR LAYOUT
   ============================================================ */
.qpg-topbar {
  display: flex;
  align-items: stretch;
  gap: 10px;
  margin-bottom: 20px;
}

/* ============================================================
   4. HERO — Two-column: left text + right illustration
   ============================================================ */
.qpg-hero {
  flex: 1;
  background: linear-gradient(135deg, #4F46E5 0%, #7C3AED 55%, #9333EA 100%);
  color: #fff;
  padding: 28px 32px;
  border-radius: var(--qpg-radius-lg);
  position: relative;
  overflow: hidden;
  box-shadow: var(--qpg-shadow-md);

  /* Two-column flex layout */
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

/* Decorative blobs */
.qpg-hero::before {
  content: '';
  position: absolute;
  top: -40px; right: -40px;
  width: 180px; height: 180px;
  background: rgba(255,255,255,0.06);
  border-radius: 50%;
  pointer-events: none;
}
.qpg-hero::after {
  content: '';
  position: absolute;
  bottom: -60px; left: 20%;
  width: 140px; height: 140px;
  background: rgba(255,255,255,0.04);
  border-radius: 50%;
  pointer-events: none;
}

/* Left: text column */
.qpg-hero-text {
  flex: 1;
  position: relative;
  z-index: 1;
  min-width: 0;
}

.qpg-hero-text h1 {
  margin: 0 0 8px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.3px;
  line-height: 1.3;
}

.qpg-hero-text p {
  margin: 0;
  opacity: 0.90;
  font-size: 13.5px;
  line-height: 1.6;
}

/* Right: illustration column */
.qpg-hero-illustration {
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 170px;
  height: 170px;
}

/* Default SVG illustration */
.qpg-hero-svg {
  width: 170px;
  height: 170px;
  display: block;
  filter: drop-shadow(0 8px 20px rgba(0,0,0,0.25));
  animation: qpg-hero-float 4s ease-in-out infinite;
}

/* Custom uploaded image */
.qpg-hero-img {
  width: 160px;
  height: 160px;
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 8px 20px rgba(0,0,0,0.30));
  border-radius: 16px;
  animation: qpg-hero-float 4s ease-in-out infinite;
}

/* Gentle float animation for illustration */
@keyframes qpg-hero-float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-8px); }
}

/* Theme toggle button */
.qpg-theme-toggle {
  background: var(--qpg-card);
  border: 1px solid var(--qpg-border);
  width: 48px;
  height: 48px;
  border-radius: var(--qpg-radius-full);
  cursor: pointer;
  font-size: 18px;
  align-self: center;
  color: var(--qpg-text);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--qpg-transition);
  box-shadow: var(--qpg-shadow-xs);
}
.qpg-theme-toggle:hover {
  background: var(--qpg-primary-light);
  border-color: var(--qpg-primary);
  transform: rotate(15deg) scale(1.05);
  box-shadow: var(--qpg-shadow-sm);
}

/* ============================================================
   5. CARDS
   ============================================================ */
.qpg-card {
  background: var(--qpg-card);
  border: 1px solid var(--qpg-border);
  border-radius: var(--qpg-radius-lg);
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: var(--qpg-shadow-sm);
  transition: box-shadow 0.2s ease;
}
.qpg-card:hover { box-shadow: var(--qpg-shadow-md); }
.qpg-card h3 {
  margin: 0 0 16px;
  color: var(--qpg-text);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.2px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--qpg-border-light);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ============================================================
   6. FORM GRID & INPUTS
   ============================================================ */
.qpg-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}
.qpg-grid label, .qpg-grid > div {
  display: flex;
  flex-direction: column;
  font-size: 12px;
  font-weight: 600;
  color: var(--qpg-text-muted);
  gap: 5px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}
.qpg-grid input, .qpg-grid select {
  padding: 9px 12px;
  border: 1.5px solid var(--qpg-input-border);
  border-radius: var(--qpg-radius-sm);
  font-size: 14px;
  font-family: var(--qpg-font);
  background: var(--qpg-card);
  color: var(--qpg-text);
  transition: var(--qpg-transition);
  outline: none;
}
.qpg-grid input:focus, .qpg-grid select:focus {
  border-color: var(--qpg-primary);
  box-shadow: 0 0 0 3px var(--qpg-focus-ring);
}
.qpg-grid input::placeholder { color: var(--qpg-text-faint); }

/* ============================================================
   7. EVAL MODE ROW
   ============================================================ */
.qpg-mode-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 16px;
  padding: 14px;
  background: var(--qpg-muted-bg);
  border: 1.5px solid var(--qpg-border);
  border-radius: var(--qpg-radius-md);
}
.qpg-radio {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: 13.5px;
  color: var(--qpg-text);
  font-weight: 500;
  padding: 7px 10px;
  border-radius: var(--qpg-radius-sm);
  transition: var(--qpg-transition);
}
.qpg-radio:hover { background: var(--qpg-primary-light); color: var(--qpg-primary); }
.qpg-radio input[type="radio"] { width: 16px; height: 16px; accent-color: var(--qpg-primary); cursor: pointer; }

/* ============================================================
   8. INSTRUCTIONS LIST
   ============================================================ */
.qpg-instr { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.qpg-instr .qpg-bullet {
  font-weight: 700; color: var(--qpg-primary); min-width: 26px;
  font-size: 13px; background: var(--qpg-primary-light);
  height: 26px; display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--qpg-radius-sm); flex-shrink: 0;
}
.qpg-instr input {
  flex: 1; padding: 8px 12px;
  border: 1.5px solid var(--qpg-input-border);
  border-radius: var(--qpg-radius-sm);
  font-family: var(--qpg-font); font-size: 13.5px;
  background: var(--qpg-card); color: var(--qpg-text);
  transition: var(--qpg-transition); outline: none;
}
.qpg-instr input:focus { border-color: var(--qpg-primary); box-shadow: 0 0 0 3px var(--qpg-focus-ring); }

.qpg-x {
  background: var(--qpg-danger-bg); color: var(--qpg-danger);
  border: none; width: 30px; height: 30px; border-radius: var(--qpg-radius-full);
  cursor: pointer; font-size: 15px; font-weight: 700; flex-shrink: 0;
  display: inline-flex; align-items: center; justify-content: center;
  transition: var(--qpg-transition);
}
.qpg-x:hover { background: var(--qpg-danger); color: #fff; transform: scale(1.1); }

.qpg-btn-sm {
  margin-top: 10px; padding: 7px 16px;
  background: var(--qpg-primary-light); color: var(--qpg-primary);
  border: 1.5px solid var(--qpg-primary); border-radius: var(--qpg-radius-sm);
  cursor: pointer; font-size: 13px; font-weight: 600; font-family: var(--qpg-font);
  transition: var(--qpg-transition); display: inline-flex; align-items: center; gap: 5px;
}
.qpg-btn-sm:hover { background: var(--qpg-primary); color: #fff; transform: translateY(-1px); box-shadow: var(--qpg-shadow-sm); }

/* ============================================================
   9. ADD QUESTION BAR
   ============================================================ */
.qpg-add-bar {
  margin-top: 14px; padding: 14px;
  background: var(--qpg-muted-bg);
  border: 2px dashed var(--qpg-primary);
  border-radius: var(--qpg-radius-md);
  display: flex; flex-wrap: wrap; gap: 8px; align-items: center;
  transition: var(--qpg-transition);
}
.qpg-add-bar:hover { background: var(--qpg-primary-light); }
.qpg-add-bar strong { color: var(--qpg-text-muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; }
.qpg-add {
  padding: 8px 16px; background: var(--qpg-card);
  border: 1.5px solid var(--qpg-border);
  border-radius: var(--qpg-radius-sm);
  cursor: pointer; font-size: 13px; font-weight: 600;
  color: var(--qpg-text); font-family: var(--qpg-font);
  transition: var(--qpg-transition);
  display: inline-flex; align-items: center; gap: 5px;
  box-shadow: var(--qpg-shadow-xs);
}
.qpg-add:hover { background: var(--qpg-primary); color: #fff; border-color: var(--qpg-primary); transform: translateY(-2px); box-shadow: var(--qpg-shadow-sm); }
.qpg-add:active { transform: translateY(0); }

/* ============================================================
   10. EMPTY STATE
   ============================================================ */
.qpg-empty-state {
  text-align: center; padding: 36px 20px;
  color: var(--qpg-text-faint);
  display: flex; flex-direction: column; align-items: center; gap: 12px;
}
.qpg-empty-state svg { opacity: 0.35; }
.qpg-empty-state p { margin: 0; font-size: 14px; line-height: 1.5; }
.qpg-empty-state strong { display: block; font-size: 15px; font-weight: 600; color: var(--qpg-text-muted); margin-bottom: 2px; }

/* ============================================================
   11. QUESTION CARDS
   ============================================================ */
.qpg-q {
  border: 1.5px solid var(--qpg-border);
  border-radius: var(--qpg-radius-md);
  padding: 16px; margin-bottom: 14px;
  background: var(--qpg-card); position: relative;
  transition: var(--qpg-transition);
  box-shadow: var(--qpg-shadow-xs);
  animation: qpg-pop-in 0.18s ease;
}
.qpg-q:hover { border-color: var(--qpg-primary); box-shadow: var(--qpg-shadow-sm); }
.qpg-q::before {
  content: ''; position: absolute; left: 0; top: 12px; bottom: 12px;
  width: 3px; background: var(--qpg-primary); border-radius: 3px;
  opacity: 0; transition: var(--qpg-transition);
}
.qpg-q:hover::before { opacity: 1; }

.qpg-q-head {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 12px; flex-wrap: wrap; gap: 8px;
  padding-bottom: 10px; border-bottom: 1px solid var(--qpg-border-light);
}
.qpg-q-num { font-weight: 700; color: var(--qpg-text); font-size: 15px; }
.qpg-q-type {
  background: var(--qpg-primary-light); color: var(--qpg-primary);
  padding: 3px 10px; border-radius: var(--qpg-radius-full);
  font-size: 10.5px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.6px;
}
.qpg-marks-wrapper { display: flex; align-items: center; gap: 6px; color: var(--qpg-text-muted); font-size: 12.5px; font-weight: 500; }
.qpg-q-head input.qpg-marks {
  width: 72px; padding: 5px 8px;
  border: 1.5px solid var(--qpg-input-border);
  border-radius: var(--qpg-radius-sm); font-size: 13px;
  font-family: var(--qpg-font); background: var(--qpg-muted-bg);
  color: var(--qpg-text); text-align: center; outline: none; transition: var(--qpg-transition);
}
.qpg-q-head input.qpg-marks:focus { border-color: var(--qpg-primary); box-shadow: 0 0 0 3px var(--qpg-focus-ring); background: var(--qpg-card); }

.qpg-q-actions { display: flex; gap: 5px; flex-wrap: wrap; }
.qpg-q-del {
  background: var(--qpg-danger-bg); color: var(--qpg-danger);
  border: 1.5px solid transparent; padding: 5px 12px;
  border-radius: var(--qpg-radius-sm); cursor: pointer;
  font-size: 12px; font-weight: 600; font-family: var(--qpg-font); transition: var(--qpg-transition);
}
.qpg-q-del:hover { background: var(--qpg-danger); color: #fff; }
.qpg-q-mv {
  background: var(--qpg-muted-bg); color: var(--qpg-text-muted);
  border: 1.5px solid var(--qpg-border); padding: 5px 10px;
  border-radius: var(--qpg-radius-sm); cursor: pointer;
  font-size: 13px; font-weight: 700; font-family: var(--qpg-font); transition: var(--qpg-transition);
}
.qpg-q-mv:hover { background: var(--qpg-primary-light); color: var(--qpg-primary); border-color: var(--qpg-primary); }
.qpg-q-ai {
  background: linear-gradient(135deg, #7C3AED, #4F46E5);
  color: #fff; border: none; padding: 5px 14px;
  border-radius: var(--qpg-radius-sm); cursor: pointer;
  font-size: 12px; font-weight: 600; font-family: var(--qpg-font);
  transition: var(--qpg-transition);
  box-shadow: 0 2px 6px rgba(124,58,237,0.35);
}
.qpg-q-ai:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(124,58,237,0.45); filter: brightness(1.1); }

/* ============================================================
   12. TOOLBAR
   ============================================================ */
.qpg-toolbar {
  display: flex; gap: 3px; flex-wrap: wrap;
  background: var(--qpg-muted-bg); border: 1.5px solid var(--qpg-border);
  border-radius: var(--qpg-radius-sm); padding: 5px; margin-bottom: 6px; align-items: center;
}
.qpg-toolbar button {
  background: var(--qpg-card); border: 1px solid var(--qpg-border);
  padding: 5px 9px; border-radius: 5px; cursor: pointer;
  font-size: 12.5px; font-family: var(--qpg-font); color: var(--qpg-text);
  font-weight: 600; min-width: 32px; transition: var(--qpg-transition); line-height: 1;
}
.qpg-toolbar button:hover { background: var(--qpg-primary-light); border-color: var(--qpg-primary); color: var(--qpg-primary); }
.qpg-toolbar select {
  background: var(--qpg-card); border: 1px solid var(--qpg-border);
  padding: 5px 7px; border-radius: 5px; cursor: pointer;
  font-size: 12px; font-family: var(--qpg-font); color: var(--qpg-text);
  font-weight: 500; outline: none; transition: var(--qpg-transition);
}
.qpg-toolbar .sep { width: 1px; align-self: stretch; background: var(--qpg-border); margin: 0 2px; }

/* ============================================================
   13. EDITOR
   ============================================================ */
.qpg-editor {
  min-height: 52px; border: 1.5px solid var(--qpg-input-border);
  border-radius: var(--qpg-radius-sm); padding: 10px 12px;
  background: var(--qpg-card); color: var(--qpg-text);
  font-size: 14px; line-height: 1.65; font-family: var(--qpg-font);
  outline: none; transition: var(--qpg-transition);
}
.qpg-editor:focus { border-color: var(--qpg-primary); box-shadow: 0 0 0 3px var(--qpg-focus-ring); }
.qpg-editor:empty::before { content: attr(data-placeholder); color: var(--qpg-text-faint); font-style: italic; pointer-events: none; }
.qpg-editor[data-field="passage"] { background: #FFFCEB; border-color: #FCD34D; min-height: 80px; }
.qpg-wrap[data-theme="dark"] .qpg-editor[data-field="passage"] { background: #292204; border-color: #78580A; }

/* ============================================================
   14. IMAGE SLOT
   ============================================================ */
.qpg-img-slot {
  margin-top: 8px; padding: 10px 12px;
  background: var(--qpg-muted-bg); border: 1.5px dashed var(--qpg-border);
  border-radius: var(--qpg-radius-sm); transition: var(--qpg-transition);
}
.qpg-img-slot:hover { border-color: var(--qpg-primary); background: var(--qpg-primary-light); }
.qpg-img-slot .qpg-img-empty { color: var(--qpg-text-faint); font-size: 12px; }
.qpg-img-slot .qpg-upload-img {
  padding: 6px 14px; background: var(--qpg-card);
  border: 1.5px solid var(--qpg-input-border); border-radius: var(--qpg-radius-sm);
  cursor: pointer; font-size: 12.5px; font-family: var(--qpg-font);
  color: var(--qpg-text); font-weight: 600; transition: var(--qpg-transition);
}
.qpg-img-slot .qpg-upload-img:hover { background: var(--qpg-primary); color: #fff; border-color: var(--qpg-primary); }
.qpg-img-slot .qpg-img-preview { margin-top: 8px; display: flex; flex-direction: column; gap: 6px; }
.qpg-img-slot img { max-width: 100%; border: 1px solid var(--qpg-border); border-radius: var(--qpg-radius-sm); display: block; }
.qpg-img-slot .qpg-img-controls { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; font-size: 12px; color: var(--qpg-text-muted); }
.qpg-img-slot .qpg-img-controls input[type="range"] { flex: 1; min-width: 100px; accent-color: var(--qpg-primary); }
.qpg-img-slot .qpg-img-controls select { padding: 4px 7px; border: 1px solid var(--qpg-input-border); border-radius: 4px; background: var(--qpg-card); color: var(--qpg-text); font-size: 12px; outline: none; font-family: var(--qpg-font); }
.qpg-img-slot .qpg-img-remove { background: var(--qpg-danger-bg); color: var(--qpg-danger); border: none; padding: 4px 10px; border-radius: 4px; cursor: pointer; font-size: 11.5px; font-weight: 600; font-family: var(--qpg-font); transition: var(--qpg-transition); }
.qpg-img-slot .qpg-img-remove:hover { background: var(--qpg-danger); color: #fff; }

/* ============================================================
   15. MCQ OPTIONS
   ============================================================ */
.qpg-opt-row {
  display: flex; align-items: flex-start; gap: 8px; margin-top: 8px;
  padding: 10px 12px; background: var(--qpg-muted-bg);
  border-radius: var(--qpg-radius-sm); border: 1px solid var(--qpg-border-light);
  transition: var(--qpg-transition);
}
.qpg-opt-row:hover { background: var(--qpg-primary-light); border-color: var(--qpg-primary); }
.qpg-opt-row .qpg-opt-letter { font-weight: 800; min-width: 28px; padding-top: 10px; color: var(--qpg-primary); font-size: 14px; text-align: center; }
.qpg-opt-body { flex: 1; }
.qpg-opt-body .qpg-editor { min-height: 38px; background: var(--qpg-card); }

/* ============================================================
   16. MATCH GRID
   ============================================================ */
.qpg-match-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 10px; }
.qpg-match-col h5 { margin: 0 0 8px; font-size: 12px; color: var(--qpg-text-muted); text-transform: uppercase; letter-spacing: 0.5px; font-weight: 700; padding: 4px 8px; background: var(--qpg-primary-light); border-radius: var(--qpg-radius-sm); display: inline-block; }
.qpg-match-cell { display: flex; flex-direction: column; gap: 4px; margin-bottom: 8px; padding: 8px; background: var(--qpg-muted-bg); border-radius: var(--qpg-radius-sm); border: 1px solid var(--qpg-border-light); }

/* ============================================================
   17. ACTION BAR — All buttons equal size
   ============================================================ */
.qpg-actions {
  position: sticky;
  bottom: 16px;
  background: var(--qpg-card);
  border: 1.5px solid var(--qpg-border);
  padding: 14px 16px;
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  z-index: 100;
  border-radius: var(--qpg-radius-lg);
  margin-top: 16px;
  box-shadow: var(--qpg-shadow-lg);
}

/* ============================================================
   18. BUTTONS — All same base size; primary keeps gradient
   ============================================================ */
.qpg-btn {
  /* Equal sizing for ALL action buttons */
  padding: 10px 20px;
  min-width: 130px;
  border: 1.5px solid var(--qpg-border);
  border-radius: var(--qpg-radius-sm);
  background: var(--qpg-card);
  color: var(--qpg-text);
  cursor: pointer;
  font-size: 13.5px;
  font-weight: 600;
  font-family: var(--qpg-font);
  transition: var(--qpg-transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  white-space: nowrap;
  /* No flex: 1 or width: 100% — keeps it same size as siblings */
}
.qpg-btn:hover {
  background: var(--qpg-muted-bg);
  transform: translateY(-1px);
  box-shadow: var(--qpg-shadow-sm);
}
.qpg-btn:active { transform: translateY(0); box-shadow: none; }

/* Primary (Download PDF) — gradient but SAME SIZE as others */
.qpg-btn.qpg-primary {
  background: linear-gradient(135deg, var(--qpg-primary) 0%, var(--qpg-accent) 100%);
  color: #fff;
  border: none;
  box-shadow: 0 2px 8px rgba(79,70,229,0.35);
  /* Intentionally no width: 100% or flex: 1 */
}
.qpg-btn.qpg-primary:hover {
  filter: brightness(1.1);
  box-shadow: 0 4px 16px rgba(79,70,229,0.45);
  transform: translateY(-2px);
}

/* ============================================================
   19. AI MODAL
   ============================================================ */
.qpg-ai-modal {
  position: fixed; inset: 0; background: rgba(0,0,0,0.6);
  z-index: 99999; display: flex; align-items: center; justify-content: center;
  padding: 20px; animation: qpg-fade-in 0.18s ease; backdrop-filter: blur(4px);
}
.qpg-ai-box {
  background: #fff; border-radius: var(--qpg-radius-xl); padding: 24px;
  max-width: 580px; width: 100%; max-height: 85vh; overflow-y: auto;
  color: #1E293B; box-shadow: var(--qpg-shadow-xl); animation: qpg-slide-up 0.22s ease;
}
.qpg-ai-box h3 { margin: 0 0 8px; color: #7C3AED; font-size: 18px; font-weight: 700; display: flex; align-items: center; gap: 8px; }
.qpg-ai-box > p { font-size: 13px; color: #64748B; margin: 0 0 16px; line-height: 1.5; }
.qpg-ai-box textarea {
  width: 100%; padding: 12px; border: 1.5px solid #CBD5E1;
  border-radius: var(--qpg-radius-md); font-family: var(--qpg-font);
  font-size: 14px; min-height: 90px; box-sizing: border-box; resize: vertical;
  outline: none; color: #1E293B; background: #F8FAFC; transition: var(--qpg-transition);
}
.qpg-ai-box textarea:focus { border-color: #7C3AED; box-shadow: 0 0 0 3px rgba(124,58,237,0.15); background: #fff; }
.qpg-ai-result {
  margin-top: 16px; padding: 16px; background: #F8FAFC;
  border-left: 3px solid #7C3AED; border-radius: 0 6px 6px 0;
  white-space: pre-wrap; font-size: 13.5px; line-height: 1.65;
  max-height: 280px; overflow-y: auto; color: #1E293B;
}
.qpg-ai-box .qpg-ai-actions { margin-top: 12px; display: flex; gap: 8px; justify-content: flex-end; }
.qpg-ai-box .qpg-btn { min-width: 100px; padding: 9px 18px; font-size: 13px; background: #F1F5F9; border-color: #CBD5E1; color: #475569; }
.qpg-ai-box .qpg-btn:hover { background: #E2E8F0; }
.qpg-ai-box .qpg-btn.qpg-primary { background: linear-gradient(135deg,#7C3AED,#4F46E5); color: #fff; border: none; min-width: 100px; }

/* ============================================================
   20. LOGIN GATE
   ============================================================ */
.qpg-login-gate {
  background: var(--qpg-card); border: 1.5px solid var(--qpg-border);
  border-radius: var(--qpg-radius-lg); padding: 40px 24px;
  text-align: center; margin-bottom: 16px; box-shadow: var(--qpg-shadow-sm);
}
.qpg-login-gate h3 { margin: 0 0 8px; color: var(--qpg-text); font-size: 18px; font-weight: 700; }
.qpg-login-gate p { color: var(--qpg-text-muted); margin: 0 0 16px; font-size: 14px; }
.qpg-user-info {
  padding: 10px 16px; background: #ECFDF5; border: 1px solid #A7F3D0;
  border-radius: var(--qpg-radius-sm); color: #065F46; font-size: 13.5px;
  font-weight: 500; display: inline-block; margin-top: 12px;
}

/* ============================================================
   21. PAPER PREVIEW
   ============================================================ */
#qpg-preview-wrap {
  margin-top: 20px; background: #64748B; padding: 24px;
  border-radius: var(--qpg-radius-lg); overflow-x: auto;
}
.qpg-paper {
  background: #fff; width: 794px; min-height: 1123px;
  margin: 0 auto; padding: 50px 55px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.25);
  font-family: 'Noto Sans Devanagari', Arial, sans-serif;
  color: #000; font-size: 14px; line-height: 1.7;
  position: relative; box-sizing: border-box; border-radius: 2px;
}
.qpg-paper.cols-2 .qpg-paper-questions { column-count: 2; column-gap: 28px; }
.qpg-paper-head { text-align: center; border-bottom: 2px solid #000; padding-bottom: 12px; margin-bottom: 16px; }
.qpg-paper-head h2 { margin: 0 0 4px; font-size: 22px; font-weight: 700; }
.qpg-paper-head .qpg-meta { display: flex; justify-content: space-between; font-size: 13px; margin-top: 8px; flex-wrap: wrap; gap: 6px; }
.qpg-paper-head .qpg-grade-display { display: inline-block; border: 2px solid #000; padding: 4px 14px; font-weight: 700; letter-spacing: 6px; }
.qpg-paper-instr { margin-bottom: 18px; padding: 12px; background: #F9FAFB; border-left: 3px solid #6B7280; font-size: 13px; color: #000; }
.qpg-paper-instr h4 { margin: 0 0 6px; font-size: 14px; font-weight: 700; }
.qpg-paper-instr ol { margin: 0; padding-left: 20px; }
.qpg-paper-q { margin-bottom: 16px; break-inside: avoid; color: #000; }
.qpg-paper-q .qpg-pq-head { display: flex; justify-content: space-between; font-weight: 700; margin-bottom: 5px; }
.qpg-paper-q .qpg-pq-body { display: flex; gap: 12px; align-items: flex-start; }
.qpg-paper-q .qpg-pq-body.img-below, .qpg-paper-q .qpg-pq-body.img-none { display: block; }
.qpg-paper-q .qpg-pq-body .qpg-pq-text { flex: 1; }
.qpg-paper-q .qpg-pq-body .qpg-pq-img { flex-shrink: 0; }
.qpg-paper-q .qpg-pq-body.img-below .qpg-pq-img { margin-top: 6px; }
.qpg-paper-q ol.qpg-mcq-opts { list-style: upper-alpha; padding-left: 26px; margin: 8px 0; }
.qpg-paper-q ol.qpg-mcq-opts li { margin-bottom: 6px; }
.qpg-paper-q ol.qpg-mcq-opts li .qpg-opt-flex { display: flex; gap: 8px; align-items: flex-start; }
.qpg-paper-q .qpg-match-table { width: 100%; border-collapse: collapse; margin-top: 6px; }
.qpg-paper-q .qpg-match-table td { border: 1px solid #D1D5DB; padding: 7px 12px; vertical-align: middle; color: #000; }
.qpg-paper-q .qpg-passage { background: #F9FAFB; padding: 12px; border-left: 3px solid #6B7280; margin-bottom: 10px; font-style: italic; color: #000; }
.qpg-paper-q .qpg-blank-line { display: inline-block; border-bottom: 1.5px dashed #000; min-width: 80px; margin: 0 4px; }
.qpg-paper-q .qpg-answer-lines { margin-top: 8px; }
.qpg-paper-q .qpg-answer-lines .qpg-line { border-bottom: 1px solid #9CA3AF; height: 26px; margin-bottom: 2px; }
.qpg-brand { position: absolute; bottom: 18px; left: 0; right: 0; text-align: center; font-size: 11px; color: #9CA3AF; font-style: italic; }
.qpg-brand a { color: #9CA3AF; text-decoration: none; }
.qpg-brand a:hover { color: #6B7280; text-decoration: underline; }

/* ============================================================
   22. ANIMATIONS
   ============================================================ */
@keyframes qpg-spin      { to { transform: rotate(360deg); } }
@keyframes qpg-fade-in   { from { opacity: 0; } to { opacity: 1; } }
@keyframes qpg-slide-up  { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
@keyframes qpg-pop-in    { from { transform: scale(0.96); opacity: 0; } to { transform: scale(1); opacity: 1; } }

/* ============================================================
   23. COLLAPSIBLE CARDS (setup sections)
   ============================================================ */

/* Card header: cursor + chevron */
.qpg-card h3 { cursor: pointer; user-select: none; }

/* Chevron icon injected by qpg-collapse.js */
.qpg-card-chevron {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px; height: 22px;
  border-radius: var(--qpg-radius-sm);
  background: var(--qpg-muted-bg);
  color: var(--qpg-text-muted);
  font-size: 10px;
  flex-shrink: 0;
  transition: transform 0.22s ease, background 0.15s;
}
.qpg-card-chevron::before { content: '▼'; }
.qpg-card-chevron--up { transform: rotate(180deg); }
.qpg-card h3:hover .qpg-card-chevron {
  background: var(--qpg-primary-light);
  color: var(--qpg-primary);
}

/* Card body wrapper — collapses when card gets --collapsed */
.qpg-card-body {
  overflow: hidden;
  transition: max-height 0.28s ease, opacity 0.22s ease;
  max-height: 2000px;  /* large enough for any content */
  opacity: 1;
}
.qpg-card--collapsed .qpg-card-body {
  max-height: 0 !important;
  opacity: 0;
  pointer-events: none;
}
.qpg-card--collapsed h3 {
  margin-bottom: 0;
  border-bottom: none;
  padding-bottom: 0;
}

/* ============================================================
   24. COLLAPSIBLE QUESTIONS
   ============================================================ */

/* Collapse toggle button (▼/▶) */
.qpg-q-collapse-btn {
  background: var(--qpg-muted-bg);
  border: 1.5px solid var(--qpg-border);
  width: 30px; height: 30px;
  border-radius: var(--qpg-radius-sm);
  cursor: pointer;
  color: var(--qpg-text-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--qpg-transition);
  margin-left: 4px;
  padding: 0;
}
.qpg-q-collapse-btn:hover {
  background: var(--qpg-primary-light);
  color: var(--qpg-primary);
  border-color: var(--qpg-primary);
  transform: scale(1.08);
}
/* Rotate arrow when expanded */
.qpg-q-collapse-btn--open svg { transform: rotate(180deg); }
.qpg-q-collapse-btn svg { transition: transform 0.22s ease; }

/* Question text preview (shown when collapsed) */
.qpg-q-preview {
  display: none;
  font-size: 13px;
  color: var(--qpg-text-muted);
  font-style: italic;
  padding: 7px 14px 10px;
  border-top: 1px solid var(--qpg-border-light);
  line-height: 1.5;
  background: var(--qpg-muted-bg);
  border-radius: 0 0 var(--qpg-radius-md) var(--qpg-radius-md);
  cursor: default;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Collapsed question: hide everything except head + preview */
.qpg-q--collapsed > *:not(.qpg-q-head):not(.qpg-q-preview) {
  display: none !important;
}
.qpg-q--collapsed .qpg-q-head {
  border-bottom: none;
  padding-bottom: 0;
  margin-bottom: 0;
}
.qpg-q--collapsed .qpg-q-preview { display: block; }

/* Subtle visual cue that card is collapsed */
.qpg-q--collapsed {
  border-color: var(--qpg-border);
  box-shadow: var(--qpg-shadow-xs);
  background: var(--qpg-muted-bg);
}

/* ============================================================
   25. SCROLLBAR
   ============================================================ */
.qpg-wrap ::-webkit-scrollbar { width: 5px; height: 5px; }
.qpg-wrap ::-webkit-scrollbar-track { background: var(--qpg-muted-bg); border-radius: 10px; }
.qpg-wrap ::-webkit-scrollbar-thumb { background: var(--qpg-border); border-radius: 10px; }
.qpg-wrap ::-webkit-scrollbar-thumb:hover { background: var(--qpg-text-faint); }