/**
 * IMAT Online Exam System - Modern Editorial & Interactive Stylesheet
 * Brand: Hüseyin Kalkan — İtalya Üniversite Danışmanlığı
 */

:root {
  --imat-navy-dark: #071527;
  --imat-navy: #0F2544;
  --imat-navy-light: #1C3863;
  --imat-gold: #C5A059;
  --imat-gold-light: #DFBE7B;
  --imat-gold-dark: #9A7B38;
  --imat-accent-blue: #2563EB;
  --imat-green: #10B981;
  --imat-green-light: #ECFDF5;
  --imat-green-dark: #047857;
  --imat-red: #EF4444;
  --imat-red-light: #FEF2F2;
  --imat-red-dark: #B91C1C;
  --imat-yellow: #F59E0B;
  --imat-yellow-light: #FFFBEB;
  --imat-gray-50: #F8FAFC;
  --imat-gray-100: #F1F5F9;
  --imat-gray-200: #E2E8F0;
  --imat-gray-300: #CBD5E1;
  --imat-gray-600: #475569;
  --imat-gray-700: #334155;
  --imat-gray-900: #0F172A;
  --imat-shadow-sm: 0 2px 4px rgba(7, 21, 39, 0.05);
  --imat-shadow-md: 0 6px 16px rgba(7, 21, 39, 0.08);
  --imat-shadow-lg: 0 12px 32px rgba(7, 21, 39, 0.12);
  --imat-radius: 12px;
  --imat-transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Base Wrapper */
.imat-app-container {
  min-height: 80vh;
  background: linear-gradient(180deg, #F8FAFC 0%, #EDF2F7 100%);
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--imat-gray-900);
  position: relative;
}

/* ==========================================================================
   1. LANDING & HUB VIEW
   ========================================================================== */
.imat-hero {
  background: linear-gradient(135deg, var(--imat-navy-dark) 0%, var(--imat-navy) 60%, #152E52 100%);
  color: #ffffff;
  padding: 4.5rem 1.5rem 4rem;
  position: relative;
  overflow: hidden;
  border-bottom: 3px solid var(--imat-gold);
}

.imat-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(197, 160, 89, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.imat-hero-inner {
  max-width: 1140px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
  text-align: center;
}

.imat-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(197, 160, 89, 0.15);
  border: 1px solid rgba(197, 160, 89, 0.4);
  color: var(--imat-gold-light);
  padding: 6px 16px;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.imat-hero-title {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  line-height: 1.15;
  color: #ffffff;
  margin-bottom: 1rem;
}

.imat-hero-desc {
  font-size: 1.1rem;
  color: #CBD5E1;
  max-width: 760px;
  margin: 0 auto 2.5rem;
  line-height: 1.6;
}

.imat-stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.25rem;
  max-width: 900px;
  margin: 0 auto 2.5rem;
}

.imat-stat-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(10px);
  padding: 1.25rem 1rem;
  border-radius: var(--imat-radius);
  text-align: center;
  transition: var(--imat-transition);
}

.imat-stat-card:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
  border-color: rgba(197, 160, 89, 0.4);
}

.imat-stat-val {
  font-size: 1.8rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 4px;
}

.imat-stat-val.text-gold {
  color: var(--imat-gold-light);
}

.imat-stat-lbl {
  font-size: 0.8rem;
  color: #94A3B8;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}

/* Mode Selection Cards */
.imat-modes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
  max-width: 860px;
  margin: 0 auto;
}

.imat-mode-card {
  background: #ffffff;
  color: var(--imat-gray-900);
  padding: 2rem;
  border-radius: var(--imat-radius);
  border: 2px solid transparent;
  box-shadow: var(--imat-shadow-lg);
  text-align: left;
  position: relative;
  transition: var(--imat-transition);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.imat-mode-card:hover {
  transform: translateY(-4px);
  border-color: var(--imat-gold);
}

.imat-mode-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.imat-mode-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}

.imat-mode-icon.real-exam {
  background: #EFF6FF;
  color: #2563EB;
}

.imat-mode-icon.practice {
  background: #ECFDF5;
  color: #059669;
}

.imat-mode-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--imat-navy-dark);
  margin: 0;
}

.imat-mode-body p {
  color: var(--imat-gray-600);
  font-size: 0.95rem;
  line-height: 1.55;
  margin-bottom: 1.25rem;
}

.imat-mode-features {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
}

.imat-mode-features li {
  font-size: 0.875rem;
  color: var(--imat-gray-700);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.imat-mode-features li i {
  color: var(--imat-gold-dark);
}

.btn-start-mode {
  width: 100%;
  padding: 0.875rem 1.5rem;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
  border: none;
  transition: var(--imat-transition);
}

.btn-start-real {
  background: var(--imat-navy);
  color: #ffffff;
}

.btn-start-real:hover {
  background: var(--imat-navy-dark);
  box-shadow: 0 4px 12px rgba(15, 37, 68, 0.3);
}

.btn-start-practice {
  background: #059669;
  color: #ffffff;
}

.btn-start-practice:hover {
  background: #047857;
  box-shadow: 0 4px 12px rgba(5, 150, 105, 0.3);
}

/* Sections Overview Table / Cards */
.imat-sections-overview {
  max-width: 1140px;
  margin: 3.5rem auto;
  padding: 0 1.5rem;
}

.imat-sections-title {
  text-align: center;
  font-family: 'DM Serif Display', serif;
  font-size: 1.8rem;
  color: var(--imat-navy-dark);
  margin-bottom: 1.5rem;
}

.imat-sections-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.imat-sec-info-card {
  background: #ffffff;
  padding: 1.5rem;
  border-radius: var(--imat-radius);
  border: 1px solid var(--imat-gray-200);
  box-shadow: var(--imat-shadow-sm);
  transition: var(--imat-transition);
}

.imat-sec-info-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--imat-shadow-md);
}

.imat-sec-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 0.75rem;
}

.imat-sec-badge-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.badge-logic-icon { background: #EFF6FF; color: #2563EB; }
.badge-bio-icon { background: #ECFDF5; color: #059669; }
.badge-chem-icon { background: #FFFBEB; color: #D97706; }
.badge-physmath-icon { background: #F5F3FF; color: #7C3AED; }

.imat-sec-name {
  font-weight: 700;
  font-size: 1rem;
  color: var(--imat-navy-dark);
}

.imat-sec-details {
  font-size: 0.85rem;
  color: var(--imat-gray-600);
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--imat-gray-100);
  padding-top: 0.75rem;
  margin-top: 0.5rem;
}

/* ==========================================================================
   2. EXAM ACTIVE WORKSPACE
   ========================================================================== */
.imat-exam-workspace {
  display: none;
  min-height: 100vh;
  background: #F1F5F9;
}

.imat-exam-workspace.active {
  display: block;
}

/* Top Sticky Control Bar */
.imat-sticky-bar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #ffffff;
  border-bottom: 1px solid var(--imat-gray-200);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  padding: 0.75rem 1.5rem;
}

.imat-sticky-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.imat-exam-meta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.imat-exam-badge {
  background: var(--imat-navy);
  color: #ffffff;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.imat-exam-title-text {
  font-weight: 700;
  font-size: 1rem;
  color: var(--imat-navy-dark);
}

/* Section Filter Pills */
.imat-subject-pills {
  display: flex;
  gap: 6px;
  background: var(--imat-gray-100);
  padding: 4px;
  border-radius: 8px;
  overflow-x: auto;
}

.imat-subject-pill {
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  background: transparent;
  border: none;
  color: var(--imat-gray-600);
  cursor: pointer;
  white-space: nowrap;
  transition: var(--imat-transition);
}

.imat-subject-pill:hover {
  color: var(--imat-navy-dark);
  background: rgba(255, 255, 255, 0.6);
}

.imat-subject-pill.active {
  background: #ffffff;
  color: var(--imat-navy-dark);
  font-weight: 700;
  box-shadow: 0 2px 4px rgba(0,0,0,0.06);
}

/* Timer Display */
.imat-timer-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #F8FAFC;
  border: 1px solid var(--imat-gray-200);
  padding: 6px 14px;
  border-radius: 8px;
  font-family: monospace;
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--imat-navy);
}

.imat-timer-box.warning {
  background: #FEF2F2;
  border-color: #F87171;
  color: #DC2626;
  animation: pulse-timer 1s infinite alternate;
}

@keyframes pulse-timer {
  from { transform: scale(1); }
  to { transform: scale(1.04); }
}

.imat-btn-finish {
  background: #DC2626;
  color: #ffffff;
  border: none;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--imat-transition);
  display: flex;
  align-items: center;
  gap: 6px;
}

.imat-btn-finish:hover {
  background: #B91C1C;
}

/* Exam Layout: Main Stage + Sidebar Matrix */
.imat-exam-body {
  max-width: 1280px;
  margin: 1.5rem auto;
  padding: 0 1.5rem 3rem;
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 1.5rem;
  align-items: start;
}

@media (max-width: 992px) {
  .imat-exam-body {
    grid-template-columns: 1fr;
  }
}

/* Question Stage Card */
.imat-stage-card {
  background: #ffffff;
  border-radius: var(--imat-radius);
  border: 1px solid var(--imat-gray-200);
  box-shadow: var(--imat-shadow-md);
  overflow: hidden;
}

.imat-stage-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  background: #FAFAFA;
  border-bottom: 1px solid var(--imat-gray-200);
}

.imat-stage-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.imat-q-badge {
  background: var(--imat-navy);
  color: #ffffff;
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 700;
}

.imat-sec-tag {
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 6px;
}

.tag-logic { background: #EFF6FF; color: #1D4ED8; }
.tag-bio { background: #ECFDF5; color: #047857; }
.tag-chem { background: #FFFBEB; color: #B45309; }
.tag-physmath { background: #F5F3FF; color: #6D28D9; }

.imat-stage-actions {
  display: flex;
  gap: 8px;
}

.btn-action-tool {
  background: transparent;
  border: 1px solid var(--imat-gray-300);
  color: var(--imat-gray-600);
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: var(--imat-transition);
}

.btn-action-tool:hover {
  background: var(--imat-gray-100);
  color: var(--imat-gray-900);
}

.btn-action-tool.flagged {
  background: #FFFBEB;
  border-color: #F59E0B;
  color: #B45309;
}

/* Question Content Area */
.imat-stage-content {
  padding: 2rem 1.75rem;
}

.imat-question-text {
  font-size: 1.15rem;
  line-height: 1.7;
  color: #1E293B;
  margin-bottom: 1.5rem;
  font-weight: 500;
}

/* Question Diagram / Image Box */
.imat-diagram-box {
  background: #F8FAFC;
  border: 1px solid var(--imat-gray-200);
  border-radius: 10px;
  padding: 1rem;
  margin-bottom: 1.75rem;
  text-align: center;
  position: relative;
}

.imat-diagram-img {
  max-width: 100%;
  max-height: 480px;
  height: auto;
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  cursor: zoom-in;
}

.imat-diagram-caption {
  font-size: 0.75rem;
  color: #64748B;
  margin-top: 6px;
  font-style: italic;
}

/* Options Container */
.imat-options-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 2rem;
}

.imat-option-btn {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 1rem 1.25rem;
  border-radius: 10px;
  border: 1.5px solid var(--imat-gray-200);
  background: #ffffff;
  color: var(--imat-gray-900);
  text-align: left;
  cursor: pointer;
  transition: var(--imat-transition);
  position: relative;
  outline: none;
}

.imat-option-btn:hover {
  border-color: #94A3B8;
  background: #F8FAFC;
  transform: translateX(2px);
}

.imat-option-letter {
  width: 32px;
  height: 32px;
  min-width: 32px;
  border-radius: 50%;
  background: var(--imat-gray-100);
  border: 1.5px solid var(--imat-gray-300);
  color: var(--imat-navy);
  font-weight: 700;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--imat-transition);
}

.imat-option-text {
  font-size: 1.05rem;
  line-height: 1.5;
  padding-top: 4px;
  flex: 1;
}

/* Option Selected State */
.imat-option-btn.selected {
  border-color: var(--imat-navy);
  background: #EFF6FF;
  box-shadow: 0 0 0 1px var(--imat-navy);
}

.imat-option-btn.selected .imat-option-letter {
  background: var(--imat-navy);
  border-color: var(--imat-navy);
  color: #ffffff;
}

/* Option Correct / Wrong State (Practice / Review Mode) */
.imat-option-btn.is-correct {
  border-color: var(--imat-green);
  background: var(--imat-green-light) !important;
}

.imat-option-btn.is-correct .imat-option-letter {
  background: var(--imat-green);
  border-color: var(--imat-green);
  color: #ffffff;
}

.imat-option-btn.is-wrong {
  border-color: var(--imat-red);
  background: var(--imat-red-light) !important;
}

.imat-option-btn.is-wrong .imat-option-letter {
  background: var(--imat-red);
  border-color: var(--imat-red);
  color: #ffffff;
}

/* Practice Instant Hint / Solution Box */
.imat-practice-solution-box {
  background: #F0FDF4;
  border: 1px solid #86EFAC;
  border-radius: 8px;
  padding: 1rem 1.25rem;
  margin-top: 1.5rem;
  display: none;
}

.imat-practice-solution-box.active {
  display: block;
}

.imat-practice-solution-title {
  font-weight: 700;
  font-size: 0.95rem;
  color: #166534;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Stage Bottom Navigation */
.imat-stage-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.75rem;
  background: #FAFAFA;
  border-top: 1px solid var(--imat-gray-200);
}

.btn-nav-stage {
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--imat-transition);
  border: none;
}

.btn-nav-prev {
  background: #ffffff;
  border: 1px solid var(--imat-gray-300);
  color: var(--imat-gray-700);
}

.btn-nav-prev:hover:not(:disabled) {
  background: var(--imat-gray-100);
  color: var(--imat-gray-900);
}

.btn-nav-prev:disabled, .btn-nav-next:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn-nav-next {
  background: var(--imat-navy);
  color: #ffffff;
}

.btn-nav-next:hover:not(:disabled) {
  background: var(--imat-navy-dark);
  box-shadow: 0 4px 12px rgba(15, 37, 68, 0.2);
}

/* ==========================================================================
   3. QUESTION MATRIX DRAWER / SIDEBAR
   ========================================================================== */
.imat-matrix-sidebar {
  background: #ffffff;
  border-radius: var(--imat-radius);
  border: 1px solid var(--imat-gray-200);
  box-shadow: var(--imat-shadow-md);
  padding: 1.25rem;
  position: sticky;
  top: 80px;
}

.imat-matrix-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--imat-navy-dark);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.imat-matrix-legend {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  padding-bottom: 0.75rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--imat-gray-200);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.75rem;
  color: var(--imat-gray-600);
  font-weight: 600;
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot-empty { background: #E2E8F0; }
.dot-answered { background: var(--imat-navy); }
.dot-flagged { background: var(--imat-yellow); }
.dot-correct { background: var(--imat-green); }
.dot-wrong { background: var(--imat-red); }

.imat-matrix-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 6px;
  max-height: 420px;
  overflow-y: auto;
  padding-right: 4px;
}

.imat-matrix-btn {
  aspect-ratio: 1;
  border-radius: 6px;
  border: 1px solid var(--imat-gray-200);
  background: var(--imat-gray-50);
  color: var(--imat-gray-700);
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--imat-transition);
  position: relative;
}

.imat-matrix-btn:hover {
  border-color: var(--imat-navy);
  transform: scale(1.08);
}

.imat-matrix-btn.current {
  outline: 2px solid var(--imat-gold);
  outline-offset: 1px;
}

.imat-matrix-btn.answered {
  background: var(--imat-navy);
  color: #ffffff;
  border-color: var(--imat-navy);
}

.imat-matrix-btn.flagged::after {
  content: '★';
  position: absolute;
  top: -2px;
  right: 1px;
  font-size: 8px;
  color: var(--imat-yellow);
}

.imat-matrix-btn.is-correct {
  background: var(--imat-green) !important;
  color: #ffffff !important;
  border-color: var(--imat-green) !important;
}

.imat-matrix-btn.is-wrong {
  background: var(--imat-red) !important;
  color: #ffffff !important;
  border-color: var(--imat-red) !important;
}

/* ==========================================================================
   4. RESULTS & ANALYTICS DASHBOARD
   ========================================================================== */
.imat-results-workspace {
  display: none;
  max-width: 1140px;
  margin: 2.5rem auto 4rem;
  padding: 0 1.5rem;
}

.imat-results-workspace.active {
  display: block;
}

.imat-results-hero {
  background: linear-gradient(135deg, var(--imat-navy-dark) 0%, var(--imat-navy) 100%);
  border-radius: var(--imat-radius);
  color: #ffffff;
  padding: 3rem 2rem;
  text-align: center;
  box-shadow: var(--imat-shadow-lg);
  margin-bottom: 2rem;
  position: relative;
}

.imat-score-circle {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  border: 6px solid var(--imat-gold);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  background: rgba(255, 255, 255, 0.05);
}

.imat-score-val {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1;
  color: #ffffff;
}

.imat-score-max {
  font-size: 0.85rem;
  color: var(--imat-gold-light);
  font-weight: 600;
}

.imat-results-title {
  font-family: 'DM Serif Display', serif;
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.imat-results-stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  max-width: 700px;
  margin: 2rem auto 0;
}

.imat-res-stat-card {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  padding: 1rem;
  text-align: center;
}

.imat-res-stat-val {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 4px;
}

.text-correct { color: #34D399; }
.text-wrong { color: #F87171; }
.text-blank { color: #94A3B8; }

/* Section Score Cards */
.imat-sec-results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.imat-sec-res-card {
  background: #ffffff;
  border-radius: var(--imat-radius);
  border: 1px solid var(--imat-gray-200);
  box-shadow: var(--imat-shadow-sm);
  padding: 1.5rem;
}

.imat-sec-res-title {
  font-weight: 700;
  font-size: 1rem;
  color: var(--imat-navy-dark);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.imat-sec-progress-bar {
  height: 8px;
  background: var(--imat-gray-100);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 1rem;
}

.imat-sec-progress-fill {
  height: 100%;
  border-radius: 999px;
  background: var(--imat-navy);
}

.imat-sec-res-table {
  width: 100%;
  font-size: 0.85rem;
}

.imat-sec-res-table td {
  padding: 4px 0;
  color: var(--imat-gray-600);
}

.imat-sec-res-table td:last-child {
  text-align: right;
  font-weight: 700;
  color: var(--imat-gray-900);
}

/* Results Review Filter Tabs */
.imat-review-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.imat-review-filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.btn-review-filter {
  padding: 6px 14px;
  border-radius: 6px;
  border: 1px solid var(--imat-gray-300);
  background: #ffffff;
  color: var(--imat-gray-700);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--imat-transition);
}

.btn-review-filter.active {
  background: var(--imat-navy);
  border-color: var(--imat-navy);
  color: #ffffff;
}

/* Modal Overlay for Diagram Zoom / Confirmation */
.imat-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(7, 21, 39, 0.7);
  backdrop-filter: blur(4px);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.imat-modal-overlay.active {
  display: flex;
}

.imat-confirm-box {
  background: #ffffff;
  border-radius: var(--imat-radius);
  max-width: 480px;
  width: 100%;
  padding: 2rem;
  text-align: center;
  box-shadow: var(--imat-shadow-lg);
  animation: modal-pop 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modal-pop {
  from { opacity: 0; transform: scale(0.92); }
  to { opacity: 1; transform: scale(1); }
}

.imat-confirm-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--imat-navy-dark);
  margin-bottom: 0.75rem;
}

.imat-confirm-text {
  font-size: 0.95rem;
  color: var(--imat-gray-600);
  line-height: 1.5;
  margin-bottom: 1.5rem;
}

.imat-confirm-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
}