/* ============================================
   DCET ONLINE EXAM - PROFESSIONAL UI DESIGN
   ============================================ */

/* Color Variables */
:root {
  --primary-color: #1F56BD;
  --primary-dark: #1745A0;
  --primary-light: #3968D9;
  --secondary-color: #0F766E;
  --secondary-light: #14B8A6;
  --success-color: #10B981;
  --danger-color: #EF4444;
  --warning-color: #F59E0B;
  --info-color: #3B82F6;
  
  --bg-primary: #F9FAFB;
  --bg-secondary: #F3F4F6;
  --bg-white: #FFFFFF;
  --text-primary: #1F2937;
  --text-secondary: #6B7280;
  --text-light: #9CA3AF;
  --border-color: #E5E7EB;
  --shadow-light: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-medium: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-heavy: 0 10px 15px rgba(0, 0, 0, 0.1);
  
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --border-radius: 12px;
  --border-radius-sm: 8px;
}

/* ============================================
   GLOBAL STYLES
   ============================================ */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  margin-top: 70px;
}

/* ============================================
   HEADER STYLES
   ============================================ */

.dcet-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--bg-white);
  border-bottom: 2px solid var(--border-color);
  box-shadow: var(--shadow-light);
  z-index: 1030;
  height: 70px;
  display: flex;
  align-items: center;
}

.header-container {
  width: 100%;
  max-width: 100%;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo-img {
  height: 50px;
  width: auto;
  object-fit: contain;
}

.header-brand {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--primary-color);
  letter-spacing: -0.5px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.student-info {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.student-label {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
}

.student-name {
  color: var(--primary-color);
  font-weight: 600;
  max-width: 150px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.timer-badge {
  background: var(--primary-color);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  min-width: 100px;
  text-align: center;
}

.timer-badge.warning {
  background: var(--warning-color);
  animation: pulse-warning 1s infinite;
}

.timer-badge.critical {
  background: var(--danger-color);
  animation: pulse-critical 0.6s infinite;
}

@keyframes pulse-warning {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

@keyframes pulse-critical {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* ============================================
   PROMOTIONAL BANNER STYLES
   ============================================ */

.promo-section {
  margin-bottom: 2rem;
  animation: slideDown 0.4s ease-out;
}

.promo-card {
  background: linear-gradient(135deg, #0734fbbb 0%, #2a123a 100%);
  border-radius: var(--border-radius);
  box-shadow: 0 8px 24px rgba(102, 126, 234, 0.2);
  overflow: hidden;
  border: 2px solid rgba(255, 255, 255, 0.1);
}

.promo-badge {
  background: rgba(255, 255, 255, 0.2);
  color: white;
  padding: 0.5rem 1rem;
  font-weight: 700;
  font-size: 0.85rem;
  text-align: center;
  border-bottom: 2px solid rgba(255, 255, 255, 0.3);
  letter-spacing: 1px;
}

.promo-content {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 2rem;
  padding: 2rem;
  color: white;
  align-items: start;
}

.promo-title {
  font-size: 1.6rem;
  font-weight: 700;
  margin: 0 0 0.5rem 0;
  line-height: 1.4;
  color: white;
}

.promo-subtitle {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.9);
  margin: 0 0 1.5rem 0;
  font-weight: 500;
}

.promo-highlights {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  margin-bottom: 1.5rem;
}

.highlight-item {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  font-size: 0.95rem;
  line-height: 1.5;
}

.highlight-icon {
  display: flex;
  align-items: center;
  color: #FFD700;
  font-size: 1.1rem;
  flex-shrink: 0;
  margin-top: 0.2rem;
}

.promo-dates {
  background: rgba(255, 255, 255, 0.15);
  padding: 1.2rem;
  border-radius: var(--border-radius-sm);
  border-left: 4px solid #FFD700;
}

.date-item {
  font-size: 0.9rem;
  margin-bottom: 0.6rem;
  display: flex;
  justify-content: space-between;
}

.date-item:last-child {
  margin-bottom: 0;
}

.date-item strong {
  color: #FFD700;
}

.promo-right {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  text-align: center;
}

.promo-btn {
  display: inline-block;
  background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
  color: #333;
  padding: 1rem 2rem;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition-smooth);
  box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
  border: none;
  min-width: 180px;
  text-align: center;
}

.promo-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 215, 0, 0.4);
  text-decoration: none;
  color: #333;
  background: linear-gradient(135deg, #FFA500 0%, #FFD700 100%);
}

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

.promo-contact {
  background: rgba(255, 255, 255, 0.15);
  padding: 1rem;
  border-radius: var(--border-radius-sm);
  width: 100%;
}

.contact-label {
  font-size: 0.85rem;
  font-weight: 600;
  margin: 0 0 0.6rem 0;
  color: rgba(255, 255, 255, 0.9);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.contact-phone {
  color: #FFD700;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
  transition: var(--transition-smooth);
}

.contact-phone:hover {
  color: white;
  text-decoration: underline;
}

.contact-divider {
  color: rgba(255, 255, 255, 0.5);
  margin: 0 0.3rem;
}

/* ============================================
   PROMO RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1024px) {
  .promo-content {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .promo-right {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  .promo-btn {
    min-width: 150px;
  }
}

@media (max-width: 768px) {
  .promo-section {
    margin-bottom: 1.5rem;
  }

  .promo-card {
    border-radius: var(--border-radius-sm);
  }

  .promo-content {
    padding: 1.5rem;
    grid-template-columns: 1fr;
  }

  .promo-title {
    font-size: 1.3rem;
  }

  .promo-subtitle {
    font-size: 0.9rem;
  }

  .promo-highlights {
    gap: 0.7rem;
  }

  .highlight-item {
    font-size: 0.9rem;
  }

  .promo-right {
    flex-direction: column;
    gap: 1rem;
    align-items: stretch;
  }

  .promo-btn {
    width: 100%;
    min-width: unset;
    padding: 0.9rem 1.5rem;
    font-size: 0.95rem;
  }

  .promo-contact {
    width: 100%;
  }

  .promo-dates {
    padding: 1rem;
  }

  .date-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.2rem;
  }
}

@media (max-width: 480px) {
  .promo-title {
    font-size: 1.1rem;
  }

  .promo-subtitle {
    font-size: 0.8rem;
    margin-bottom: 1rem;
  }

  .promo-content {
    padding: 1rem;
    gap: 1rem;
  }

  .highlight-item {
    font-size: 0.85rem;
    gap: 0.6rem;
  }

  .highlight-icon {
    font-size: 1rem;
  }

  .promo-highlights {
    gap: 0.6rem;
    margin-bottom: 1rem;
  }

  .promo-dates {
    padding: 0.8rem;
    margin-bottom: 1rem;
  }

  .date-item {
    font-size: 0.8rem;
    margin-bottom: 0.4rem;
  }

  .promo-btn {
    padding: 0.8rem 1.2rem;
    font-size: 0.9rem;
  }

  .promo-contact {
    padding: 0.8rem;
    font-size: 0.9rem;
  }

  .contact-label {
    font-size: 0.75rem;
  }

  .contact-phone {
    font-size: 0.9rem;
  }
}

/* ============================================
   MAIN CONTAINER & SECTIONS
   ============================================ */

.dcet-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

section {
  animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
   PRE-REGISTRATION INSTRUCTIONS
   ============================================ */

.pre-instructions-section {
  margin-bottom: 2rem;
  animation: slideDown 0.4s ease-out;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.instructions-card {
  background: var(--bg-white);
  border-radius: var(--border-radius);
  border-left: 5px solid var(--primary-color);
  box-shadow: var(--shadow-light);
  border-top: 1px solid var(--border-color);
  border-right: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  overflow: hidden;
}

.instructions-header {
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-color) 100%);
  color: white;
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.instructions-header i {
  font-size: 1.5rem;
}

.instructions-header h4 {
  margin: 0;
  font-weight: 600;
  font-size: 1.2rem;
}

.instructions-content {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.instruction-item {
  display: flex;
  gap: 1rem;
}

.instruction-icon {
  display: flex;
  align-items: flex-start;
  color: var(--primary-color);
  font-size: 1.2rem;
  margin-top: 0.2rem;
  flex-shrink: 0;
}

.instruction-item div {
  flex: 1;
}

.instruction-item strong {
  color: var(--primary-color);
}

/* ============================================
   REGISTRATION FORM STYLES
   ============================================ */

.form-section {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 60vh;
  padding: 2rem 0;
}

.form-card {
  background: var(--bg-white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-heavy);
  width: 100%;
  max-width: 500px;
  padding: 2.5rem;
  border-top: 4px solid var(--primary-color);
}

.form-header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.form-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-color);
  margin: 0 0 0.5rem 0;
}

.form-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
  margin: 0;
}

.form-group {
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
}

.form-group label {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.6rem;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.form-group label i {
  color: var(--primary-color);
  font-size: 1rem;
}

.form-input {
  padding: 0.75rem 1rem;
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  font-size: 0.95rem;
  font-family: 'Poppins', sans-serif;
  transition: var(--transition-smooth);
  background-color: #FAFBFC;
}

.form-input:focus {
  outline: none;
  border-color: var(--primary-color);
  background-color: white;
  box-shadow: 0 0 0 3px rgba(31, 86, 189, 0.1);
}

.form-input::placeholder {
  color: var(--text-light);
}

.btn-block {
  width: 100%;
}

.btn-primary-custom {
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-color) 100%);
  color: white;
  border: none;
  padding: 0.9rem 1.5rem;
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition-smooth);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  box-shadow: 0 4px 12px rgba(31, 86, 189, 0.3);
}

.btn-primary-custom:hover {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-dark) 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(31, 86, 189, 0.4);
}

.btn-primary-custom:active {
  transform: translateY(0);
}

.btn-primary-custom.btn-block {
  width: 100%;
}

.alert-custom {
  padding: 1rem;
  border-radius: var(--border-radius-sm);
  border-left: 4px solid var(--info-color);
  background-color: #F0F9FF;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}

.timer-container {
  text-align: center;
}

.timer-text {
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--text-secondary);
}

.timer-text.critical {
  color: var(--danger-color);
  animation: pulse-critical 0.6s infinite;
}

/* ============================================
   EXAM WELCOME SECTION
   ============================================ */

.exam-welcome-section {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 70vh;
  padding: 2rem 0;
}

.welcome-card {
  background: var(--bg-white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-heavy);
  width: 100%;
  max-width: 600px;
  padding: 3rem 2.5rem;
  border-top: 4px solid var(--primary-color);
  text-align: center;
}

.welcome-header {
  margin-bottom: 2rem;
}

.welcome-header i {
  font-size: 3rem;
  color: var(--primary-color);
  display: block;
  margin-bottom: 1rem;
}

.welcome-header h2 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.student-highlight {
  color: var(--primary-color);
}

.exam-details-card {
  background: var(--bg-secondary);
  border-radius: var(--border-radius-sm);
  padding: 1.5rem;
  margin: 2rem 0;
  text-align: left;
}

.exam-details-card h4 {
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

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

.detail-list li {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  padding: 0.75rem;
  background: white;
  border-radius: var(--border-radius-sm);
}

.detail-list li:last-child {
  margin-bottom: 0;
}

.detail-icon {
  color: var(--primary-color);
  font-size: 1.2rem;
  flex-shrink: 0;
}

.detail-list strong {
  color: var(--primary-color);
}

.welcome-message {
  margin: 1.5rem 0;
  color: var(--text-secondary);
  font-size: 1.05rem;
}

.btn-success-custom {
  background: linear-gradient(135deg, var(--success-color) 0%, #059669 100%);
  color: white;
  border: none;
  padding: 1rem 2rem;
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  font-size: 1.1rem;
  cursor: pointer;
  transition: var(--transition-smooth);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.btn-success-custom:hover {
  background: linear-gradient(135deg, #059669 0%, #047857 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(16, 185, 129, 0.4);
}

/* ============================================
   EXAM MAIN SECTION - TWO COLUMN LAYOUT
   ============================================ */

.exam-main-section {
  padding: 1rem 0 3rem 0;
}

.exam-wrapper {
  display: grid;
  grid-template-columns: 1fr 350px;
  gap: 1.5rem;
  align-items: start;
}

/* Question Area (Left - 70%) */
.question-area {
  min-height: 600px;
}

.question-card {
  background: var(--bg-white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-medium);
  border-top: 3px solid var(--primary-color);
  padding: 2.5rem;
  position: sticky;
  top: 90px;
}

.question-content {
  margin-bottom: 2rem;
}

.question-text {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

.question-number {
  color: var(--primary-color);
  font-weight: 700;
}

.options-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.option-card {
  display: flex;
  align-items: center;
  padding: 1.2rem 1.5rem;
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: var(--transition-smooth);
  background: white;
  position: relative;
}

.option-card:hover {
  border-color: var(--primary-color);
  background: #F9FAFB;
}

.option-card input[type="radio"] {
  margin-right: 1rem;
  cursor: pointer;
  width: 20px;
  height: 20px;
  accent-color: var(--primary-color);
}

.option-card.selected {
  border-color: var(--primary-color);
  background: #F0F7FF;
  box-shadow: 0 0 0 3px rgba(31, 86, 189, 0.1);
}

.option-card input[type="radio"]:checked {
  accent-color: var(--primary-color);
}

.option-text {
  font-size: 1rem;
  color: var(--text-primary);
  cursor: pointer;
  user-select: none;
  flex: 1;
}

.navigation-buttons {
  display: flex;
  gap: 1.5rem;
  justify-content: space-between;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.btn-nav {
  flex: 1;
  padding: 0.85rem 1.5rem;
  border: 2px solid var(--border-color);
  background: white;
  color: var(--text-primary);
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition-smooth);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn-nav:hover:not(:disabled) {
  border-color: var(--primary-color);
  color: var(--primary-color);
  background: #F0F7FF;
}

.btn-nav:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-nav-prev {
  order: 1;
}

.btn-nav-next {
  order: 2;
}

/* Question Palette (Right - 30%) */
.palette-area {
  position: sticky;
  top: 90px;
}

.palette-card {
  background: var(--bg-white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-medium);
  border-top: 3px solid var(--secondary-color);
  overflow: hidden;
}

.palette-header {
  background: linear-gradient(135deg, var(--secondary-light) 0%, var(--secondary-color) 100%);
  color: white;
  padding: 1rem;
  text-align: center;
}

.palette-header h5 {
  margin: 0;
  font-weight: 600;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.palette-body {
  padding: 1.2rem;
}

.question-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.5rem;
}

.palette-btn {
  width: 100%;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  background: white;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition-smooth);
  padding: 0;
}

.palette-btn:hover {
  transform: scale(1.05);
}

.palette-btn.answered {
  background: var(--success-color);
  border-color: var(--success-color);
  color: white;
}

.palette-btn.not-answered {
  background: #E5E7EB;
  border-color: #D1D5DB;
  color: var(--text-secondary);
}

.palette-btn.current {
  border: 3px solid var(--primary-color);
  background: #F0F7FF;
  color: var(--primary-color);
  font-weight: 700;
}

.palette-legend {
  padding: 1rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.legend-dot {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  flex-shrink: 0;
}

.legend-dot.answered {
  background: var(--success-color);
}

.legend-dot.not-answered {
  background: #D1D5DB;
}

.legend-dot.current {
  border: 2px solid var(--primary-color);
  background: #F0F7FF;
}

/* ============================================
   RESULT SECTION
   ============================================ */

.result-section {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 60vh;
  padding: 3rem 0;
}

.result-card {
  background: var(--bg-white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-heavy);
  width: 100%;
  max-width: 600px;
  overflow: hidden;
}

.result-header {
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-color) 100%);
  color: white;
  padding: 2rem;
  text-align: center;
}

.result-header h2 {
  margin: 0;
  font-size: 2rem;
  font-weight: 700;
}

.result-content {
  padding: 2.5rem;
}

.result-score-section {
  text-align: center;
  margin-bottom: 2rem;
}

.result-score-label {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
}

.result-score {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.result-score.pass {
  color: var(--success-color);
}

.result-score.fail {
  color: var(--danger-color);
}

.result-status {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
}

.result-status.pass {
  background: #DCFCE7;
  color: var(--success-color);
  border: 2px solid var(--success-color);
}

.result-status.fail {
  background: #FEE2E2;
  color: var(--danger-color);
  border: 2px solid var(--danger-color);
}

.result-details-table {
  width: 100%;
  margin-bottom: 1.5rem;
}

.result-details-table tr {
  border-bottom: 1px solid var(--border-color);
}

.result-details-table td {
  padding: 1rem 0;
  font-size: 1rem;
}

.result-details-table td:first-child {
  color: var(--text-secondary);
  font-weight: 500;
}

.result-details-table td:last-child {
  text-align: right;
  font-weight: 600;
  color: var(--primary-color);
}

.result-timer {
  text-align: center;
  margin-bottom: 1.5rem;
  padding: 1rem;
  background: var(--bg-secondary);
  border-radius: var(--border-radius-sm);
}

.result-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================
   FINAL SECTION
   ============================================ */

.final-section {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 70vh;
  padding: 3rem 0;
}

.final-card {
  background: var(--bg-white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-heavy);
  width: 100%;
  max-width: 500px;
  padding: 3rem;
  text-align: center;
  border-top: 5px solid var(--success-color);
  animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.final-icon {
  font-size: 4rem;
  color: var(--success-color);
  margin-bottom: 1.5rem;
  animation: pulse 1s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

.final-card h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--success-color);
  margin-bottom: 1rem;
}

.final-card p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 0.75rem;
}

.final-subtitle {
  color: var(--text-light);
  font-size: 0.95rem;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1024px) {
  .exam-wrapper {
    grid-template-columns: 1fr 300px;
    gap: 1rem;
  }

  .question-card {
    padding: 2rem;
  }

  .palette-card {
    position: sticky;
    top: 90px;
  }
}

@media (max-width: 768px) {
  body {
    margin-top: 65px;
  }

  .dcet-container {
    padding: 1.5rem 1rem;
  }

  .header-container {
    padding: 0 1rem;
  }

  .header-right {
    gap: 1rem;
  }

  .student-name {
    max-width: 100px;
  }

  .logo-img {
    height: 40px;
  }

  .header-brand {
    font-size: 1rem;
  }

  .exam-wrapper {
    grid-template-columns: 1fr;
  }

  .palette-area {
    position: static;
  }

  .question-card {
    position: static;
    padding: 1.5rem;
  }

  .form-card {
    padding: 2rem 1.5rem;
  }

  .form-title {
    font-size: 1.5rem;
  }

  .welcome-card {
    padding: 2rem 1.5rem;
  }

  .result-card {
    margin: 0 1rem;
  }

  .final-card {
    margin: 0 1rem;
    padding: 2rem 1.5rem;
  }

  .question-grid {
    grid-template-columns: repeat(5, 1fr);
  }

  .navigation-buttons {
    flex-direction: column-reverse;
    gap: 1rem;
  }

  .btn-nav {
    width: 100%;
  }

  .timer-badge {
    fonts-size: 0.85rem;
    padding: 0.4rem 0.8rem;
    min-width: 80px;
  }

  .instructions-card {
    border-radius: var(--border-radius-sm);
  }

  .detail-list li {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .option-card {
    flex-direction: column;
    align-items: flex-start;
  }

  .option-card input[type="radio"] {
    margin-right: 0;
    margin-bottom: 0.5rem;
  }

  .palette-legend {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .dcet-header {
    height: 65px;
  }

  body {
    margin-top: 65px;
  }

  .header-container {
    padding: 0 0.75rem;
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .header-left {
    gap: 0.5rem;
  }

  .header-brand {
    display: none;
  }

  .header-right {
    width: 100%;
    justify-content: space-between;
    gap: 0.5rem;
  }

  .student-info {
    gap: 0.25rem;
  }

  .student-label {
    display: none;
  }

  .student-name {
    font-size: 0.75rem;
    max-width: 80px;
  }

  .timer-badge {
    font-size: 0.75rem;
    padding: 0.3rem 0.6rem;
    min-width: 70px;
  }

  .question-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 0.4rem;
  }

  .palette-btn {
    font-size: 0.7rem;
  }

  .question-card {
    padding: 1rem;
  }

  .question-text {
    font-size: 1rem;
  }

  .option-card {
    padding: 0.9rem 1rem;
  }

  .form-card {
    padding: 1.5rem 1rem;
    margin: 0 0.5rem;
  }

  .form-title {
    font-size: 1.3rem;
  }

  .result-score {
    font-size: 2.5rem;
  }

  .final-icon {
    font-size: 3rem;
  }

  .final-card h2 {
    font-size: 1.5rem;
  }

  .palette-legend {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }

  .legend-item {
    font-size: 0.7rem;
  }

  .navigation-buttons {
    gap: 0.75rem;
  }

  .btn-nav {
    padding: 0.7rem 1rem;
    font-size: 0.85rem;
  }
}

/* ============================================
   UTILITIES
   ============================================ */

.d-none {
  display: none !important;
}

.text-center {
  text-align: center;
}

.mt-3 {
  margin-top: 1rem;
}

.mt-4 {
  margin-top: 1.5rem;
}

.mb-4 {
  margin-bottom: 1.5rem;
}

.fw-bold {
  font-weight: 600;
}

/* ============================================
   ACCESSIBILITY & PRINT STYLES
   ============================================ */

/* Override Bootstrap list-group styling for quality option cards */
.list-group-item {
  padding: 1.2rem 1.5rem !important;
  border: 2px solid var(--border-color) !important;
  border-radius: var(--border-radius-sm) !important;
  cursor: pointer;
  transition: var(--transition-smooth);
  background: white !important;
  position: relative;
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  font-weight: 400;
}

.list-group-item:hover {
  border-color: var(--primary-color) !important;
  background: #F9FAFB !important;
}

.list-group-item input[type="radio"] {
  margin: 0;
  width: 20px;
  height: 20px;
  cursor: pointer;
  accent-color: var(--primary-color);
  flex-shrink: 0;
}

.list-group-item input[type="radio"]:checked {
  accent-color: var(--primary-color);
}

.list-group-item input[type="radio"]:checked + label {
  font-weight: 600;
}

.list-group-item input[type="radio"]:checked ~ * {
  color: var(--primary-color) !important;
}

.list-group-item.active {
  border-color: var(--primary-color) !important;
  background: #F0F7FF !important;
  box-shadow: 0 0 0 3px rgba(31, 86, 189, 0.1) !important;
}

.list-group {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: none !important;
}

/* Override Bootstrap button styling for palette buttons */
.btn.btn-outline-primary {
  width: auto;
  height: auto;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--border-color) !important;
  border-radius: var(--border-radius-sm) !important;
  background: white !important;
  color: var(--text-primary) !important;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
  padding: 0 !important;
  min-width: unset !important;
  font-size: 0.85rem;
}

.btn.btn-outline-primary:hover:not(:disabled) {
  transform: scale(1.05);
  border-color: var(--primary-color) !important;
  color: var(--primary-color) !important;
  background: #F0F7FF !important;
}

.btn.btn-outline-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn.btn-outline-primary.answered {
  background: var(--success-color) !important;
  border-color: var(--success-color) !important;
  color: white !important;
}

.btn.btn-outline-primary.active {
  border: 3px solid var(--primary-color) !important;
  background: #F0F7FF !important;
  color: var(--primary-color) !important;
  font-weight: 700;
}

/* Question text styling */
.question-title {
  margin: 0 0 10px 0;
  padding: 0;
}

.question-title strong {
  color: var(--primary-color);
  font-size: 1.15rem;
}

/* Result details styling (for non-table result displays) */
#result-details > div {
  padding: 1rem 0;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1rem;
}

#result-details > div:last-child {
  border-bottom: none;
}

#result-details > div strong {
  color: var(--text-secondary);
  font-weight: 500;
  min-width: 120px;
}

#result-details > div .fw-bold {
  margin-left: 1rem;
  font-weight: 600 !important;
  color: var(--text-primary);
  text-align: right;
  flex: 1;
}

#result-details > div .text-success {
  color: var(--success-color) !important;
}

#result-details > div .text-danger {
  color: var(--danger-color) !important;
}

/* Registration message styling */
.alert-custom.alert-custom.d-none {
  transform: translateY(-10px);
}

/* Timer styling in footer/header */
#registration-timer,
#result-timer {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
}

#registration-timer.critical,
#result-timer.critical {
  color: var(--danger-color);
  animation: pulse-critical 0.6s infinite;
}

/* Ensure form validation feedback is styled properly */
.invalid-feedback {
  display: block;
  color: var(--danger-color);
  font-size: 0.85rem;
  margin-top: 0.3rem;
}

.was-validated .form-input:invalid {
  border-color: var(--danger-color);
}

.was-validated .form-input:valid {
  border-color: var(--success-color) !important;
  background-color: #F6FBFF;
}

/* Ensure pre-registered instructions is hidden from exam timer area */
#pre-reg-instructions {
  margin-top: -70px;
  padding-top: 70px;
  position: relative;
  z-index: 5;
}

@media print {
  .dcet-header,
  .navigation-buttons,
  .palette-area {
    display: none;
  }

  body {
    margin-top: 0;
  }

  .question-card,
  .result-card {
    box-shadow: none;
    page-break-inside: avoid;
  }
}