/* =======================================================
 * Panache IELTS Academic Reading - Modern Design System
 * Unified Common Stylesheet for IELTS Reading Tests
 * ======================================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  --ielts-primary: #2563eb;
  --ielts-primary-dark: #1d4ed8;
  --ielts-primary-light: #eff6ff;
  --ielts-primary-rgb: 37, 99, 235;

  --ielts-secondary: #0f766e;
  --ielts-secondary-light: #f0fdfa;

  --ielts-accent: #f59e0b;
  --ielts-danger: #ef4444;
  --ielts-success: #10b981;

  --ielts-slate-900: #0f172a;
  --ielts-slate-800: #1e293b;
  --ielts-slate-700: #334155;
  --ielts-slate-600: #475569;
  --ielts-slate-500: #64748b;
  --ielts-slate-400: #94a3b8;
  --ielts-slate-300: #cbd5e1;
  --ielts-slate-200: #e2e8f0;
  --ielts-slate-100: #f1f5f9;
  --ielts-slate-50: #f8fafc;

  --ielts-card-bg: #ffffff;
  --ielts-card-border: #e2e8f0;
  --ielts-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --ielts-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --ielts-shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.07), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
  --ielts-shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
  --ielts-radius-sm: 6px;
  --ielts-radius: 10px;
  --ielts-radius-lg: 16px;
  --ielts-radius-full: 9999px;
  --ielts-font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* Base resets & typography */
body {
  font-family: var(--ielts-font-sans);
  color: var(--ielts-slate-800);
  background-color: #f8fafc;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

#header {
  background: #2563eb !important;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

/* =======================================================
 * Header & Breadcrumbs Bar
 * ======================================================= */
.breadcrumbs {
  padding: 16px 0 10px 0;
  background: linear-gradient(180deg, #ffffff 0%, #f1f5f9 100%);
  border-bottom: 1px solid var(--ielts-slate-200);
  margin-bottom: 12px;
}

.test-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 0 !important;
}

.test-title-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.test-title {
  font-weight: 800;
  color: var(--ielts-slate-900);
  margin: 0;
  font-size: 1.65rem;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.test-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: var(--ielts-radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  background: var(--ielts-primary);
  color: #ffffff;
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.3);
}

.test-meta-info {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--ielts-slate-500);
  font-size: 0.85rem;
  font-weight: 500;
}

.test-meta-info span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.btn-menu-return {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1.5px solid var(--ielts-primary);
  color: var(--ielts-primary);
  background: #ffffff;
  padding: 8px 18px;
  border-radius: var(--ielts-radius-full);
  font-weight: 600;
  font-size: 0.875rem;
  transition: all 0.25s ease;
  text-decoration: none;
  box-shadow: var(--ielts-shadow-sm);
}

.btn-menu-return:hover {
  background-color: var(--ielts-primary);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
  transform: translateY(-2px);
}

/* Quick Navigation Passage Switcher */
.passage-nav-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--ielts-slate-200);
  overflow-x: auto;
  white-space: nowrap;
}

.passage-nav-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--ielts-radius-full);
  background: #ffffff;
  border: 1px solid var(--ielts-slate-200);
  color: var(--ielts-slate-700);
  font-size: 0.825rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
}

.passage-nav-pill:hover {
  background: var(--ielts-primary-light);
  border-color: var(--ielts-primary);
  color: var(--ielts-primary);
}

.passage-nav-pill.active {
  background: var(--ielts-primary);
  border-color: var(--ielts-primary);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}

.passage-nav-pill .badge-pill-count {
  font-size: 0.725rem;
  padding: 2px 7px;
  border-radius: var(--ielts-radius-full);
  background: rgba(0, 0, 0, 0.08);
}

.passage-nav-pill.active .badge-pill-count {
  background: rgba(255, 255, 255, 0.25);
  color: #ffffff;
}

/* =======================================================
 * Split-Pane Workspace Layout
 * ======================================================= */
#portfolio-details.portfolio-details {
  padding: 10px 0 20px 0;
  margin-bottom: 30px;
  clear: both;
}

#footer {
  margin-top: 40px;
  position: relative;
  z-index: 2;
  clear: both;
}

#portfolio-details .container {
  max-width: 96%;
  padding-left: 12px;
  padding-right: 12px;
}

.split-pane-container {
  display: flex !important;
  flex-direction: row !important;
  align-items: stretch !important;
  gap: 20px !important;
  width: 100% !important;
  height: calc(100vh - 160px);
  min-height: 640px;
  margin-top: 4px;
}

.pane-half {
  flex: 1 1 0 !important;
  width: calc(50% - 10px) !important;
  max-width: calc(50% - 10px) !important;
  min-width: 0 !important;
  display: flex;
  flex-direction: column;
  background: var(--ielts-card-bg);
  border-radius: var(--ielts-radius-lg);
  border: 1px solid var(--ielts-card-border);
  box-shadow: var(--ielts-shadow-md);
  overflow: hidden;
  position: relative;
  transition: box-shadow 0.3s ease;
}

.pane-half:hover {
  box-shadow: var(--ielts-shadow-lg);
}

/* Distinct Top Accent */
.pane-passage {
  border-top: 4px solid var(--ielts-primary);
}

.pane-questions {
  border-top: 4px solid #6366f1;
}

/* Header Banner Inside Panes */
.pane-header-banner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 24px;
  background: var(--ielts-slate-50);
  border-bottom: 1px solid var(--ielts-slate-200);
  position: sticky;
  top: 0;
  z-index: 10;
}

.pane-banner-title {
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ielts-slate-600);
  display: flex;
  align-items: center;
  gap: 8px;
}

.pane-banner-title i {
  color: var(--ielts-primary);
  font-size: 1.1rem;
}

/* The Scrolling Area */
.pane-content {
  flex: 1;
  overflow-y: auto;
  padding: 28px 32px 60px 32px;
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--ielts-slate-800);
  scroll-behavior: smooth;
}

/* Sleek Webkit Scrollbar */
.pane-content::-webkit-scrollbar {
  width: 7px;
}

.pane-content::-webkit-scrollbar-thumb {
  background: var(--ielts-slate-300);
  border-radius: 10px;
}

.pane-content::-webkit-scrollbar-thumb:hover {
  background: var(--ielts-primary);
}

.pane-content::-webkit-scrollbar-track {
  background: transparent;
}

/* =======================================================
 * Timers & Sticky Timer Header
 * ======================================================= */
.timer-controls {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #ffffff;
  padding: 6px 14px;
  border-radius: var(--ielts-radius-full);
  border: 1px solid var(--ielts-slate-200);
  box-shadow: var(--ielts-shadow-sm);
}

.timer-controls.timer-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  background: linear-gradient(135deg, #f0fdf4 0%, #ffffff 100%);
  border: 1px solid #bbf7d0;
  padding: 12px 18px;
  border-radius: var(--ielts-radius);
}

.timer-card-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--ielts-slate-700);
}

.timer-card-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.ielts-timer-text {
  font-size: 1.1rem !important;
  font-weight: 700 !important;
  padding: 5px 12px !important;
  border-radius: var(--ielts-radius-full) !important;
  letter-spacing: 0.05em;
  background: var(--ielts-primary) !important;
  color: #ffffff;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.25);
}

.ielts-timer-btn {
  font-size: 0.8rem !important;
  font-weight: 600 !important;
  padding: 6px 14px !important;
  border-radius: var(--ielts-radius-full) !important;
  border: 1.5px solid var(--ielts-primary) !important;
  color: var(--ielts-primary) !important;
  background: #ffffff !important;
  cursor: pointer;
  transition: all 0.2s ease;
}

.ielts-timer-btn:hover {
  background: var(--ielts-primary) !important;
  color: #ffffff !important;
  box-shadow: 0 3px 8px rgba(37, 99, 235, 0.25);
}

.ielts-timer-btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

/* =======================================================
 * Passage Typography & Editorial Styling
 * ======================================================= */
.ielts-passage-section {
  position: relative;
  padding-bottom: 35px;
  margin-bottom: 35px;
  border-bottom: 2px dashed var(--ielts-slate-200);
}

.ielts-passage-section:last-of-type {
  border-bottom: none;
  padding-bottom: 0;
  margin-bottom: 0;
}

.ielts-passage-header {
  margin-bottom: 20px;
}

.ielts-passage-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--ielts-primary-light);
  color: var(--ielts-primary);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  border-radius: var(--ielts-radius-sm);
  margin-bottom: 8px;
}

.ielts-passage-heading {
  color: var(--ielts-slate-900);
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 4px 0 10px 0;
  line-height: 1.35;
}

.ielts-passage-instruction {
  font-size: 0.925rem;
  color: var(--ielts-slate-500);
  font-style: italic;
  margin-bottom: 20px;
}

.ielts-passage-text {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--ielts-slate-800);
}

.ielts-paragraph {
  margin-bottom: 1.4rem;
  text-align: justify;
  position: relative;
}

.ielts-paragraph b:first-child {
  display: inline-block;
  font-weight: 800;
  color: var(--ielts-primary-dark);
  font-size: 1.05rem;
  margin-right: 4px;
}

/* =======================================================
 * Question Cards & Group Styling
 * ======================================================= */
.ielts-question-card {
  background: #ffffff;
  border-radius: var(--ielts-radius);
  border: 1px solid var(--ielts-slate-200);
  padding: 22px 24px;
  margin-bottom: 28px;
  box-shadow: var(--ielts-shadow-sm);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.ielts-question-card:hover {
  border-color: #cbd5e1;
  box-shadow: var(--ielts-shadow);
}

.ielts-question-card-header {
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--ielts-slate-100);
}

.ielts-question-badge {
  display: inline-block;
  background: #6366f1;
  color: #ffffff;
  font-size: 0.775rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--ielts-radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.ielts-question-heading {
  color: var(--ielts-slate-900);
  font-size: 1.15rem;
  font-weight: 700;
  margin: 2px 0 8px 0;
  letter-spacing: -0.01em;
}

.ielts-question-heading-italic {
  display: block;
  background: linear-gradient(135deg, #f0fdf4 0%, #ecfdf5 100%);
  border-left: 4px solid var(--ielts-secondary);
  color: var(--ielts-secondary);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 10px 16px;
  border-radius: 0 var(--ielts-radius-sm) var(--ielts-radius-sm) 0;
  margin: 30px 0 16px 0;
}

.ielts-question-instruction {
  font-size: 0.925rem;
  color: var(--ielts-slate-600);
  margin-bottom: 12px;
  line-height: 1.5;
}

/* =======================================================
 * Question Items & Options
 * ======================================================= */
.ielts-question-item {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px;
  margin-bottom: 10px;
  border-radius: var(--ielts-radius-sm);
  background: var(--ielts-slate-50);
  border: 1px solid var(--ielts-slate-200);
  transition: all 0.2s ease;
}

.ielts-question-item:hover {
  background: #ffffff;
  border-color: var(--ielts-primary);
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.08);
}

.ielts-question-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--ielts-primary-light);
  color: var(--ielts-primary);
  font-weight: 700;
  font-size: 0.85rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.ielts-question-text {
  flex: 1;
  font-size: 0.95rem;
  color: var(--ielts-slate-800);
  line-height: 1.5;
  margin: 0;
  padding-top: 3px;
}

/* Custom Dropdown Select */
.ielts-select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-color: #ffffff;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23475569'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 16px;
  border: 1.5px solid var(--ielts-slate-300);
  border-radius: var(--ielts-radius-sm);
  padding: 7px 34px 7px 12px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ielts-slate-900);
  min-width: 80px;
  max-width: 100%;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: var(--ielts-shadow-sm);
}

.ielts-select:hover {
  border-color: var(--ielts-primary);
}

.ielts-select:focus {
  outline: none;
  border-color: var(--ielts-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

.ielts-select.ielts-select-full {
  width: 100%;
  margin-top: 8px;
}

/* Inline text input */
.ielts-input-inline {
  display: inline-block;
  border: 1.5px solid var(--ielts-slate-300);
  border-radius: var(--ielts-radius-sm);
  padding: 5px 10px;
  font-size: 0.925rem;
  font-weight: 600;
  color: var(--ielts-slate-900);
  background: #ffffff;
  min-width: 130px;
  transition: all 0.2s ease;
  box-shadow: var(--ielts-shadow-sm);
  text-transform: uppercase;
}

.ielts-input-inline:focus {
  outline: none;
  border-color: var(--ielts-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
  background: #ffffff;
}

/* =======================================================
 * Guideline Callouts (True/False/Not Given, Yes/No/NG)
 * ======================================================= */
.ielts-guide-card {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
  background: var(--ielts-slate-100);
  border-radius: var(--ielts-radius-sm);
  padding: 12px 16px;
  margin: 12px 0 18px 0;
}

.ielts-guide-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.825rem;
  color: var(--ielts-slate-700);
}

.ielts-guide-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.guide-badge-true, .guide-badge-yes {
  background: #dcfce7;
  color: #15803d;
  border: 1px solid #bbf7d0;
}

.guide-badge-false, .guide-badge-no {
  background: #fee2e2;
  color: #b91c1c;
  border: 1px solid #fecaca;
}

.guide-badge-ng {
  background: #f1f5f9;
  color: #475569;
  border: 1px solid #cbd5e1;
}

/* =======================================================
 * Diagram Labeling Component (Questions 6-8)
 * ======================================================= */
.ielts-diagram-container {
  background: #ffffff;
  border: 1px solid var(--ielts-slate-200);
  border-radius: var(--ielts-radius);
  padding: 20px;
  text-align: center;
  margin: 16px 0 20px 0;
  box-shadow: var(--ielts-shadow-sm);
}

.ielts-diagram-img {
  max-width: 100%;
  height: auto;
  border-radius: var(--ielts-radius-sm);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
  margin-bottom: 16px;
}

.ielts-diagram-labels {
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-align: left;
  background: var(--ielts-slate-50);
  padding: 14px 18px;
  border-radius: var(--ielts-radius-sm);
  border: 1px solid var(--ielts-slate-200);
}

.ielts-diagram-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.95rem;
  color: var(--ielts-slate-800);
}

/* =======================================================
 * List of Headings Reference Box (Questions 27-32)
 * ======================================================= */
.ielts-headings-box {
  background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
  border: 1px solid var(--ielts-slate-300);
  border-left: 5px solid var(--ielts-primary);
  border-radius: var(--ielts-radius-sm);
  padding: 18px 22px;
  margin: 16px 0 24px 0;
  box-shadow: var(--ielts-shadow-sm);
}

.ielts-headings-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--ielts-slate-900);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--ielts-slate-200);
}

.ielts-headings-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 8px 20px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ielts-headings-list li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--ielts-slate-700);
  line-height: 1.5;
}

.ielts-headings-list li b {
  color: var(--ielts-primary);
  min-width: 28px;
  font-weight: 700;
}

/* =======================================================
 * Summary Completion Box (Questions 38-40)
 * ======================================================= */
.ielts-summary-box {
  background: #ffffff;
  border: 1px solid var(--ielts-slate-200);
  border-radius: var(--ielts-radius);
  padding: 20px 24px;
  margin: 16px 0 24px 0;
  line-height: 2.3;
  font-size: 0.975rem;
  color: var(--ielts-slate-800);
  box-shadow: var(--ielts-shadow-sm);
}

/* Reference Box (Options / Descriptions Matching) */
.ielts-reference-box {
  background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
  border: 1px solid var(--ielts-slate-300);
  border-left: 5px solid var(--ielts-primary);
  border-radius: var(--ielts-radius-sm);
  padding: 18px 22px;
  margin: 16px 0 22px 0;
  box-shadow: var(--ielts-shadow-sm);
}

.ielts-reference-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.ielts-reference-list li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 8px;
  font-size: 0.925rem;
  color: var(--ielts-slate-700);
  line-height: 1.6;
}

.ielts-reference-list li b {
  color: var(--ielts-primary);
  min-width: 22px;
  font-weight: 700;
}

/* Notes Completion Box */
.ielts-notes-box {
  background: #ffffff;
  border: 1px solid var(--ielts-slate-200);
  border-radius: var(--ielts-radius);
  padding: 20px 24px;
  margin: 16px 0 24px 0;
  box-shadow: var(--ielts-shadow-sm);
}

.ielts-notes-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.ielts-notes-item {
  position: relative;
  padding-left: 22px;
  margin-bottom: 12px;
  font-size: 0.95rem;
  color: var(--ielts-slate-800);
  line-height: 1.8;
}

.ielts-notes-item::before {
  content: "•";
  position: absolute;
  left: 6px;
  top: -1px;
  color: var(--ielts-primary);
  font-size: 1.3rem;
}

.ielts-notes-item.sub-item {
  padding-left: 42px;
}

.ielts-notes-item.sub-item::before {
  left: 26px;
  color: var(--ielts-slate-400);
}

.ielts-notes-heading {
  font-weight: 700;
  color: var(--ielts-slate-900);
  margin: 16px 0 10px 0;
  padding-top: 10px;
  border-top: 1px dashed var(--ielts-slate-200);
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* =======================================================
 * Submission Card & Action Button
 * ======================================================= */
.ielts-submit-card {
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  border-radius: var(--ielts-radius-lg);
  padding: 28px;
  margin-top: 30px;
  text-align: center;
  color: #ffffff;
  box-shadow: var(--ielts-shadow-lg);
}

.ielts-submit-card h4 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: #ffffff;
}

.ielts-submit-card p {
  font-size: 0.9rem;
  color: var(--ielts-slate-300);
  margin-bottom: 20px;
}

.ielts-submit-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  color: #ffffff;
  border: none;
  border-radius: var(--ielts-radius-full);
  padding: 14px 36px;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

.ielts-submit-btn:hover {
  background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(37, 99, 235, 0.5);
  color: #ffffff;
}

.ielts-submit-btn:active {
  transform: translateY(0);
}

/* =======================================================
 * Responsive Layout (Tablets & Mobile)
 * ======================================================= */
@media (max-width: 991px) {
  .split-pane-container {
    flex-direction: column !important;
    height: auto !important;
    min-height: 0 !important;
  }

  .pane-half {
    width: 100% !important;
    max-width: 100% !important;
    height: auto !important;
    max-height: 80vh !important;
    margin-bottom: 20px;
  }

  .pane-content {
    padding: 20px;
  }

  .test-title {
    font-size: 1.35rem;
  }
}

@media (max-width: 600px) {
  .ielts-question-item {
    flex-direction: column;
    align-items: stretch;
  }

  .ielts-select {
    width: 100%;
  }

  .ielts-guide-card {
    grid-template-columns: 1fr;
  }

  .ielts-submit-btn {
    width: 100%;
  }
}