/* ============================================================

   Tech Talent Global - Technical Assessment Platform
   Single source of truth for all visual styling.
   Do not add inline styles to any HTML file.
   ============================================================ */

/* ============================================================
   1. GOOGLE FONTS IMPORT
   ============================================================ */

/* Google Fonts moved to <link> tag in HTML <head> for better caching and CORS */

/* ============================================================
   2. BRAND CUSTOM PROPERTIES
   ============================================================ */

:root {
  --cta-blue:               #0050CC;
  --cta-blue-hover:         #0058D4;
  --cta-blue-light:         rgba(10, 110, 255, 0.08);
  --cta-blue-subtle:        #EBF3FB;
  --charcoal-dark:          #2B2B2B;
  --charcoal-mid:           #4A4A4A;
  --charcoal-light:         #555555;
  --border-grey:            #E0E0E0;
  --border-grey-dark:       #C4C4C4;
  --bg-light:               #F5F7FA;
  --bg-white:               #FFFFFF;
  --success-green:          #007A4D;
  --success-green-light:    rgba(0, 168, 107, 0.1);
  --warning-orange:         #B86800;
  --warning-orange-light:   rgba(255, 140, 0, 0.1);
  --danger-red:             #C62828;
  --danger-red-light:       rgba(229, 57, 53, 0.1);
  --shadow-sm:              0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md:              0 4px 20px rgba(0, 0, 0, 0.12);
  --shadow-lg:              0 8px 40px rgba(0, 0, 0, 0.16);
  --radius-sm:              6px;
  --radius-md:              12px;
  --radius-lg:              16px;
  --transition:             all 0.2s ease;
  --transition-slow:        all 0.3s ease;
}

/* ============================================================
   3. RESET & BASE
   ============================================================ */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Montserrat', Arial, sans-serif;
  background-color: var(--bg-light);
  color: var(--charcoal-dark);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

p {
  line-height: 1.7;
}

button,
input,
select,
textarea {
  font-family: 'Montserrat', Arial, sans-serif;
}

img {
  display: block;
  max-width: 100%;
}

/* ============================================================
   4. NAVBAR
   ============================================================ */

.navbar {
  background-color: var(--charcoal-dark);
  border-radius: var(--radius-md);
  margin: 1rem 2rem 2.5rem 2rem;
  padding: 0.75rem 1.5rem;
 
  top: 1rem;
  z-index: 1000;
  box-shadow: var(--shadow-md);
  display: inline-flex;
  align-items: center;
  gap: 1rem;
}

.navbar-logo {
  height: 80px;
  display: block;
}

.navbar-badge {
  font-size: 0.6875rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.75);
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

/* ============================================================
   5. STEP WRAPPER & TRANSITIONS
   ============================================================ */

.step {
  display: none;
  opacity: 0;
  transform: translateY(20px);
  max-width: 860px;
  margin: 2rem auto;
  padding: 0 1.5rem 4rem;
}

.step.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
  animation: step-fade-in 0.3s ease both;
}

@keyframes step-fade-in {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================================
   6. STEP PROGRESS INDICATOR
   ============================================================ */

.step-indicator {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.step-dot {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  transition: var(--transition);
  flex-shrink: 0;
}

.step-dot.future {
  background-color: var(--border-grey);
  color: var(--charcoal-light);
}

.step-dot.current {
  background-color: var(--cta-blue);
  color: var(--bg-white);
  box-shadow: 0 0 0 4px rgba(10, 110, 255, 0.2);
}

.step-dot.complete {
  background-color: var(--charcoal-dark);
  color: var(--bg-white);
}

.step-line {
  height: 2px;
  width: 24px;
  background-color: var(--border-grey);
  flex-shrink: 0;
  transition: var(--transition);
}

.step-line.complete {
  background-color: var(--cta-blue);
}

/* ============================================================
   7. TYPOGRAPHY
   ============================================================ */

.page-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--charcoal-dark);
  line-height: 1.2;
  margin-bottom: 0.5rem;
}

.page-subtitle {
  font-size: 1.125rem;
  color: var(--charcoal-light);
  font-weight: 400;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.section-heading {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--charcoal-dark);
  margin-bottom: 1rem;
}

.label-text {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--charcoal-mid);
  margin-bottom: 0.375rem;
  display: block;
}

.section-eyebrow {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--cta-blue);
  margin-bottom: 0.375rem;
  display: block;
}

/* ============================================================
   7b. TERMS BOX (Step 1)
   ============================================================ */

.terms-box {
  background: #1E1E1E;
  border: 1px solid #333;
  border-radius: 10px;
  padding: 24px 28px;
  margin: 24px 0;
  text-align: left;
}

.terms-box-heading {
  margin: 0 0 16px;
  font-size: 1rem;
  color: #FFFFFF;
}

.terms-box-content {
  max-height: 200px;
  overflow-y: auto;
  padding-right: 12px;
  margin-bottom: 16px;
  font-size: 0.85rem;
  line-height: 1.7;
  color: #CCCCCC;
}

.terms-box-intro {
  margin: 0 0 12px;
}

.terms-box-list {
  margin: 0;
  padding-left: 20px;
}

.terms-box-list li {
  margin-bottom: 8px;
}

.terms-box-link {
  color: var(--cta-blue);
}

.terms-box-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
  font-size: 0.9rem;
  color: #FFFFFF;
}

.terms-box-checkbox {
  margin-top: 3px;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  accent-color: var(--cta-blue);
}

.terms-box-error {
  margin-top: 8px;
}

/* ============================================================
   8. CARDS
   ============================================================ */

.card {
  background-color: var(--bg-white);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  border: 2px solid var(--border-grey);
  transition: var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border-grey-dark);
}

.card.selected {
  border: 2px solid var(--cta-blue);
  box-shadow: 0 0 0 4px rgba(10, 110, 255, 0.12);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

/* Landing screen - 3 info cards */
.info-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 2rem 0;
}

.info-card {
  background-color: var(--bg-white);
  border-radius: var(--radius-md);
  padding: 1.5rem 1rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-grey);
  text-align: center;
  transition: var(--transition);
}

.info-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border-grey-dark);
}

.info-card-icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
  display: block;
}

.info-card-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--charcoal-dark);
  margin-bottom: 0.375rem;
}

.info-card-text {
  font-size: 0.875rem;
  color: var(--charcoal-light);
  line-height: 1.6;
}

/* ============================================================
   9. SENIORITY CARDS (Step 4)
   ============================================================ */

.seniority-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.seniority-card {
  background-color: var(--bg-white);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow-sm);
  border: 2px solid var(--border-grey);
  cursor: pointer;
  user-select: none;
  transition: var(--transition);
}

.seniority-card:hover {
  border-color: var(--cta-blue);
  background-color: var(--cta-blue-light);
}

.seniority-card.selected {
  border-color: var(--cta-blue);
  background-color: var(--cta-blue-light);
  box-shadow: 0 0 0 4px rgba(10, 110, 255, 0.12);
}

.seniority-card:focus-visible {
  outline: 2px solid var(--cta-blue);
  outline-offset: 2px;
}

.seniority-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--charcoal-dark);
  margin-bottom: 0.25rem;
}

.seniority-desc {
  font-size: 0.8125rem;
  color: var(--charcoal-light);
  line-height: 1.5;
}

/* ============================================================
   10. BUTTONS
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  border-radius: var(--radius-sm);
  font-family: 'Montserrat', Arial, sans-serif;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  line-height: 1;
  white-space: nowrap;
  text-decoration: none;
}

.btn:focus-visible {
  outline: 2px solid var(--cta-blue);
  outline-offset: 2px;
}

.btn-primary {
  background-color: var(--cta-blue);
  color: var(--bg-white);
}

.btn-primary:hover {
  background-color: var(--cta-blue-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: transparent;
  color: var(--cta-blue);
  border: 2px solid var(--cta-blue);
}

.btn-secondary:hover {
  background-color: var(--cta-blue-light);
}

.btn-danger {
  background-color: var(--danger-red);
  color: var(--bg-white);
}

.btn-danger:hover {
  background-color: #C62828;
}

.btn-large {
  padding: 1rem 2.5rem;
  font-size: 1.125rem;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
  pointer-events: none;
}

.btn-group {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
}

/* ============================================================
   11. FORM ELEMENTS
   ============================================================ */

.form-group {
  margin-bottom: 1.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  min-height: 44px;
  border: 2px solid var(--border-grey);
  border-radius: var(--radius-sm);
  font-family: 'Montserrat', Arial, sans-serif;
  font-size: 1rem;
  color: var(--charcoal-dark);
  background-color: var(--bg-white);
  transition: border-color 0.2s ease;
  outline: none;
  appearance: none;
}

.form-input:focus {
  border-color: var(--cta-blue);
}

.form-input:focus-visible {
  outline: 2px solid var(--cta-blue);
  outline-offset: 2px;
}

.form-input.error {
  border-color: var(--danger-red);
}

/* Select inherits form-input but adds chevron */
.form-select {
  width: 100%;
  padding: 0.75rem 2.5rem 0.75rem 1rem;
  border: 2px solid var(--border-grey);
  border-radius: var(--radius-sm);
  font-family: 'Montserrat', Arial, sans-serif;
  font-size: 1rem;
  color: var(--charcoal-dark);
  background-color: var(--bg-white);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='M4 6l4 4 4-4' stroke='%236B6B6B' stroke-width='1.75' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  cursor: pointer;
  transition: border-color 0.2s ease;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
}

.form-select:focus {
  border-color: var(--cta-blue);
}

.form-select:focus-visible {
  outline: 2px solid var(--cta-blue);
  outline-offset: 2px;
}

.form-select.error {
  border-color: var(--danger-red);
}

.form-error {
  font-size: 0.8125rem;
  color: var(--danger-red);
  margin-top: 0.375rem;
  font-weight: 500;
  display: none;
}

.form-error.visible {
  display: block;
}

.form-hint {
  font-size: 0.8125rem;
  color: var(--charcoal-light);
  margin-top: 0.375rem;
  line-height: 1.5;
}

.radio-group {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-top: 0.25rem;
}

.radio-option {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-size: 0.9375rem;
  color: var(--charcoal-mid);
  font-weight: 500;
  user-select: none;
}

.radio-option input[type="radio"] {
  accent-color: var(--cta-blue);
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.radio-option:focus-within {
  outline: 2px solid var(--cta-blue);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ============================================================
   12. ROLE SEARCH / SELECT (Step 3)
   ============================================================ */

.role-search-wrapper {
  position: relative;
  margin-bottom: 1rem;
}

.role-search-input {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.75rem;
  border: 2px solid var(--border-grey);
  border-radius: var(--radius-sm);
  font-family: 'Montserrat', Arial, sans-serif;
  font-size: 1rem;
  color: var(--charcoal-dark);
  background-color: var(--bg-white);
  transition: border-color 0.2s ease;
  outline: none;
  appearance: none;
}

.role-search-input:focus {
  border-color: var(--cta-blue);
}

.role-search-input:focus-visible {
  outline: 2px solid var(--cta-blue);
  outline-offset: 2px;
}

.role-search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--charcoal-light);
  pointer-events: none;
  display: flex;
  align-items: center;
}

.role-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  background-color: var(--bg-white);
  border: 2px solid var(--cta-blue);
  border-radius: var(--radius-sm);
  max-height: 320px;
  overflow-y: auto;
  z-index: 100;
  box-shadow: var(--shadow-lg);
  display: none;
}

.role-dropdown.open {
  display: block;
}

.role-group-header {
  padding: 0.5rem 1rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--charcoal-light);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background-color: var(--bg-light);
  position: sticky;
  top: 0;
  z-index: 1;
  border-bottom: 1px solid var(--border-grey);
}

.role-option {
  padding: 0.75rem 1rem;
  font-size: 0.9375rem;
  color: var(--charcoal-dark);
  cursor: pointer;
  transition: background-color 0.15s ease;
  border-bottom: 1px solid var(--border-grey);
}

.role-option:last-child {
  border-bottom: none;
}

.role-option:hover {
  background-color: var(--cta-blue-subtle);
}

.role-option.selected {
  background-color: var(--cta-blue-subtle);
  color: var(--cta-blue);
  font-weight: 600;
}

.role-option:focus-visible {
  outline: 2px solid var(--cta-blue);
  outline-offset: -2px;
}

.role-selected-display {
  padding: 0.75rem 1rem;
  background-color: var(--cta-blue-subtle);
  border-radius: var(--radius-sm);
  border: 1px solid var(--cta-blue);
  font-size: 0.9375rem;
  color: var(--cta-blue);
  font-weight: 600;
  display: none;
  margin-top: 0.75rem;
}

.role-selected-display.visible {
  display: block;
}

/* ============================================================
   13. DISCLAIMER BOX
   ============================================================ */

.disclaimer-box {
  background-color: var(--cta-blue-subtle);
  border-left: 4px solid var(--cta-blue);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 1.25rem 1.5rem;
  margin: 2rem 0;
  font-size: 0.9375rem;
  color: var(--charcoal-mid);
  line-height: 1.7;
}

/* ============================================================
   14. BRIEFING SCREEN (Step 5)
   ============================================================ */

.briefing-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}

.briefing-stat {
  background-color: var(--bg-white);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-grey);
  text-align: center;
}

.briefing-stat-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--charcoal-light);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.375rem;
  display: block;
}

.briefing-stat-value {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--cta-blue);
  line-height: 1.2;
  display: block;
}

.rules-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin: 1.5rem 0;
}

.rules-list li {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  font-size: 0.9375rem;
  color: var(--charcoal-mid);
  line-height: 1.6;
  padding: 0.75rem;
  background-color: var(--bg-light);
  border-radius: var(--radius-sm);
}

.rules-list li::before {
  content: "→";
  color: var(--cta-blue);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 0.05em;
}

/* ============================================================
   15. ACTIVE TEST - STICKY TOP BAR (Step 6)
   ============================================================ */

.test-topbar {
  position: sticky;
  top: 0;
  background-color: var(--charcoal-dark);
  padding: 0.75rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 500;
  box-shadow: var(--shadow-md);
  gap: 1rem;
}

.test-topbar-role {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
  font-weight: 500;
}

.test-topbar-seniority {
  font-size: 0.875rem;
  color: var(--bg-white);
  font-weight: 700;
}

.test-topbar-meta {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.test-timer {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--bg-white);
  font-variant-numeric: tabular-nums;
  transition: color 0.3s ease;
  letter-spacing: 0.02em;
}

.test-timer.warning {
  color: var(--danger-red);
  animation: timer-pulse 1s ease-in-out infinite;
  position: relative;
}

.test-timer.warning::after {
  content: " \26A0 LOW TIME";
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  vertical-align: middle;
}

@keyframes timer-pulse {
  0%,
  100% { opacity: 1; }
  50%  { opacity: 0.75; }
}

.test-progress-text {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
}

/* ============================================================
   16. PROGRESS BAR
   ============================================================ */

.progress-bar-track {
  height: 6px;
  background-color: var(--border-grey);
  border-radius: 3px;
  margin: 1.5rem 0;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background-color: var(--cta-blue);
  border-radius: 3px;
  transition: width 0.3s ease;
}

/* ============================================================
   17. QUESTION DISPLAY
   ============================================================ */

.question-container {
  max-width: 860px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

.question-meta {
  display: flex;
  gap: 0.625rem;
  align-items: center;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.question-number {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--charcoal-light);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.question-topic-tag {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--cta-blue);
  background-color: var(--cta-blue-subtle);
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
}

.question-points-tag {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
}

.question-points-tag.points-1 {
  color: var(--charcoal-light);
  background-color: var(--bg-light);
}

.question-points-tag.points-2 {
  color: var(--warning-orange);
  background-color: var(--warning-orange-light);
}

.question-points-tag.points-3 {
  color: var(--cta-blue);
  background-color: var(--cta-blue-subtle);
}

.question-type-tag {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.question-type-tag.type-mcq {
  color: var(--success-green);
  background-color: var(--success-green-light);
}

.question-type-tag.type-short {
  color: var(--warning-orange);
  background-color: var(--warning-orange-light);
}

.question-type-tag.type-code {
  color: #6A2FC7;
  background-color: rgba(123, 63, 219, 0.1);
}

.question-text {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--charcoal-dark);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.question-instruction {
  font-size: 0.875rem;
  color: var(--charcoal-light);
  font-style: italic;
  margin-bottom: 1rem;
  line-height: 1.6;
}

/* ============================================================
   18. MCQ OPTIONS
   ============================================================ */

.mcq-options {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.mcq-option {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border: 2px solid var(--border-grey);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  background-color: var(--bg-white);
  user-select: none;
}

.mcq-option:hover {
  border-color: var(--cta-blue);
  background-color: var(--cta-blue-light);
}

.mcq-option.selected {
  border-color: var(--cta-blue);
  background-color: var(--cta-blue-subtle);
  position: relative;
}

.mcq-option.selected::before {
  content: "\2713";
  position: absolute;
  top: 0.5rem;
  right: 0.75rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--cta-blue);
}

.mcq-option:focus-visible {
  outline: 2px solid var(--cta-blue);
  outline-offset: 2px;
}

.mcq-option-letter {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  border-radius: 50%;
  background-color: var(--border-grey);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--charcoal-mid);
  transition: var(--transition);
}

.mcq-option.selected .mcq-option-letter {
  background-color: var(--cta-blue);
  color: var(--bg-white);
}

.mcq-option-text {
  font-size: 0.9375rem;
  color: var(--charcoal-dark);
  line-height: 1.5;
  padding-top: 0.1875rem;
}

/* ============================================================
   19. SHORT ANSWER TEXTAREA
   ============================================================ */

.short-answer-input {
  width: 100%;
  min-height: 160px;
  padding: 1rem;
  border: 2px solid var(--border-grey);
  border-radius: var(--radius-sm);
  font-family: 'Montserrat', Arial, sans-serif;
  font-size: 0.9375rem;
  color: var(--charcoal-dark);
  line-height: 1.7;
  resize: vertical;
  transition: border-color 0.2s ease;
  outline: none;
  background-color: var(--bg-white);
}

.short-answer-input:focus {
  border-color: var(--cta-blue);
}

.short-answer-input:focus-visible {
  outline: 2px solid var(--cta-blue);
  outline-offset: 2px;
}

/* ============================================================
   20. CODE ANSWER TEXTAREA
   ============================================================ */

.code-language-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--charcoal-light);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
  display: block;
}

.code-answer-input {
  width: 100%;
  min-height: 240px;
  padding: 1.25rem;
  border: 2px solid var(--border-grey);
  border-radius: var(--radius-sm);
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.9rem;
  line-height: 1.7;
  resize: vertical;
  background-color: #1E1E1E;
  color: #D4D4D4;
  tab-size: 2;
  outline: none;
  transition: border-color 0.2s ease;
  -webkit-font-smoothing: auto;
}

.code-answer-input:focus {
  border-color: var(--cta-blue);
}

.code-answer-input:focus-visible {
  outline: 2px solid var(--cta-blue);
  outline-offset: 2px;
}

/* ============================================================
   21. QUESTION NAVIGATION
   ============================================================ */

.question-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-grey);
}

.question-nav-dots {
  display: flex;
  gap: 0.375rem;
  flex-wrap: wrap;
  justify-content: center;
}

.question-nav-dot {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: transparent;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  padding: 0;
  flex-shrink: 0;
  position: relative;
  background: radial-gradient(circle, var(--border-grey) 5px, transparent 5px);
}

.question-nav-dot:hover {
  background: radial-gradient(circle, var(--border-grey-dark) 5px, transparent 5px);
  transform: scale(1.2);
}

.question-nav-dot.answered {
  background: radial-gradient(circle, var(--cta-blue) 5px, transparent 5px);
}

.question-nav-dot.current {
  background: radial-gradient(circle, var(--charcoal-dark) 6px, transparent 6px);
  transform: scale(1.3);
}

.question-nav-dot:focus-visible {
  outline: 2px solid var(--cta-blue);
  outline-offset: 2px;
}

/* ============================================================
   22. TOAST NOTIFICATIONS
   ============================================================ */

.toast {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  background-color: var(--charcoal-dark);
  color: var(--bg-white);
  padding: 0.875rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  z-index: 9999;
  max-width: 360px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.25s ease, transform 0.25s ease;
  pointer-events: none;
  line-height: 1.5;
  border-left: 4px solid transparent;
}

.toast.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.toast.warning {
  border-left-color: var(--warning-orange);
}

.toast.danger {
  border-left-color: var(--danger-red);
}

.toast.success {
  border-left-color: var(--success-green);
}

/* ============================================================
   23. ANTI-CHEAT WARNING BANNER
   ============================================================ */

.cheat-warning {
  background-color: var(--warning-orange-light);
  border: 1px solid var(--warning-orange);
  border-radius: var(--radius-sm);
  padding: 0.875rem 1.25rem;
  font-size: 0.875rem;
  color: var(--charcoal-dark);
  display: none;
  margin-bottom: 1rem;
  align-items: center;
  gap: 0.75rem;
  line-height: 1.5;
  font-weight: 500;
}

.cheat-warning.visible {
  display: flex;
}

.cheat-warning.serious {
  background-color: var(--danger-red-light);
  border-color: var(--danger-red);
}

/* ============================================================
   24. CONFIRMATION SCREEN (Step 7)
   ============================================================ */

.confirmation-icon {
  width: 72px;
  height: 72px;
  background-color: var(--success-green-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  font-size: 2rem;
  flex-shrink: 0;
}

.confirmation-details {
  background-color: var(--bg-white);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-grey);
  margin: 1.5rem 0;
}

.confirmation-detail-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border-grey);
  font-size: 0.9375rem;
  gap: 1rem;
}

.confirmation-detail-row:last-child {
  border-bottom: none;
}

.confirmation-detail-label {
  color: var(--charcoal-light);
  font-weight: 500;
}

.confirmation-detail-value {
  color: var(--charcoal-dark);
  font-weight: 700;
  text-align: right;
}

.next-steps-box {
  background-color: var(--cta-blue-subtle);
  border-left: 4px solid var(--cta-blue);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 1.25rem 1.5rem;
  margin-top: 1.5rem;
  font-size: 0.9375rem;
  color: var(--charcoal-mid);
  line-height: 1.7;
}

/* BUG-021: Score display on confirmation screen */
.confirm-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--bg-white);
}

.confirm-badge-strong  { background-color: var(--success-green); }
.confirm-badge-meets   { background-color: var(--warning-orange); }
.confirm-badge-below   { background-color: var(--danger-red); }
.confirm-badge-review  { background-color: var(--charcoal-light); }

.confirm-topic-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.confirm-topic-table th {
  text-align: left;
  padding: 0.5rem 0.75rem;
  border-bottom: 2px solid var(--border-grey);
  font-weight: 700;
  color: var(--charcoal-mid);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.confirm-topic-table td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border-grey);
}

.confirm-topic-name { color: var(--charcoal-dark); font-weight: 500; }
.confirm-topic-count { text-align: center; color: var(--charcoal-mid); }
.confirm-topic-pct { text-align: center; font-weight: 700; color: var(--charcoal-dark); }

/* ============================================================
   25. SESSION RECOVERY BANNER
   ============================================================ */

.recovery-banner {
  background-color: var(--warning-orange-light);
  border: 1px solid var(--warning-orange);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  margin: 1rem 2rem;
  display: none;
  align-items: center;
  gap: 1rem;
  justify-content: space-between;
}

.recovery-banner.visible {
  display: flex;
}

.recovery-banner-text {
  font-size: 0.9375rem;
  color: var(--charcoal-dark);
  font-weight: 500;
  line-height: 1.5;
}

.recovery-banner-actions {
  display: flex;
  gap: 0.75rem;
  flex-shrink: 0;
}

/* ============================================================
   26. TOAST CONTAINER (multiple toasts stacked)
   ============================================================ */

.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  max-width: 360px;
  pointer-events: none;
}

.toast-container .toast {
  position: relative;
  bottom: auto;
  right: auto;
  pointer-events: auto;
}

/* ============================================================
   27. UTILITY CLASSES
   ============================================================ */

.text-center { text-align: center; }
.text-right  { text-align: right; }
.text-left   { text-align: left; }

.mt-xs  { margin-top: 0.5rem; }
.mt-sm  { margin-top: 1rem; }
.mt-md  { margin-top: 1.5rem; }
.mt-lg  { margin-top: 2rem; }
.mb-xs  { margin-bottom: 0.5rem; }
.mb-sm  { margin-bottom: 1rem; }
.mb-md  { margin-bottom: 1.5rem; }
.mb-lg  { margin-bottom: 2rem; }

.hidden { display: none !important; }

.skip-to-content {
  position: absolute;
  top: -100px;
  left: 0;
  z-index: 10000;
  background: var(--cta-blue);
  color: var(--bg-white);
  padding: 0.75rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 700;
  text-decoration: none;
  border-radius: 0 0 var(--radius-sm) 0;
}

.skip-to-content:focus {
  top: 0;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ============================================================
   28. RESPONSIVE - TABLET (max-width: 768px)
   ============================================================ */

@media (max-width: 1023px) {
  .navbar {
    margin: 0.5rem;
    border-radius: var(--radius-sm);
    padding: 0.75rem 1.25rem;
  }

  .step {
    padding: 0 1rem 3rem;
  }

  .info-card-grid {
    grid-template-columns: 1fr;
  }

  .seniority-grid {
    grid-template-columns: 1fr;
  }

  .briefing-summary {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .btn-group {
    flex-direction: column;
  }

  .btn-group .btn {
    width: 100%;
    justify-content: center;
  }

  .test-topbar {
    padding: 0.5rem 1rem;
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .question-container {
    padding: 1rem;
  }

  .page-title {
    font-size: 1.5rem;
  }

  .toast {
    right: 1rem;
    left: 1rem;
    max-width: none;
  }

  .toast-container {
    right: 1rem;
    left: 1rem;
    max-width: none;
  }

  .step-indicator {
    display: none;
  }

  .recovery-banner {
    flex-direction: column;
    align-items: flex-start;
    margin: 0.75rem 1rem;
  }

  .recovery-banner-actions {
    width: 100%;
  }

  .recovery-banner-actions .btn {
    flex: 1;
    justify-content: center;
  }
}

/* ============================================================
   30. CODE EXECUTION UI
   ============================================================ */

.code-editor-block {
  border: 2px solid var(--border-grey);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color 0.2s ease;
  margin-bottom: 1rem;
}

.code-editor-block:focus-within {
  border-color: var(--cta-blue);
}

.code-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 1rem;
  background-color: var(--charcoal-mid);
  gap: 1rem;
}

.code-toolbar-lang {
  font-size: 0.75rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.6);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: 'Courier New', Courier, monospace;
}

.code-run-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  padding: 0.375rem 0.875rem;
  min-height: 44px;
  min-width: 44px;
  background-color: var(--success-green);
  color: var(--bg-white);
  border: none;
  border-radius: var(--radius-sm);
  font-family: 'Montserrat', Arial, sans-serif;
  font-size: 0.8125rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  line-height: 1;
}

.code-run-btn:hover {
  background-color: #008C5A;
}

.code-run-btn:focus-visible {
  outline: 2px solid var(--bg-white);
  outline-offset: 2px;
}

.code-run-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
}

.code-editor-block .code-answer-input {
  border: none;
  border-radius: 0;
  display: block;
}

.test-cases-panel {
  margin-top: 1rem;
  border: 1px solid var(--border-grey);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background-color: var(--bg-white);
}

.test-cases-header {
  padding: 0.625rem 1rem;
  background-color: var(--bg-light);
  border-bottom: 1px solid var(--border-grey);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--charcoal-mid);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.test-case-item {
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--border-grey);
}

.test-case-item:last-child {
  border-bottom: none;
}

.test-case-desc {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--charcoal-dark);
  margin-bottom: 0.25rem;
}

.test-case-input-display {
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.8125rem;
  color: var(--charcoal-light);
  background-color: var(--bg-light);
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius-sm);
  margin-top: 0.25rem;
  white-space: pre-wrap;
  word-break: break-all;
  border: 1px solid var(--border-grey);
}

.test-case-result {
  margin-top: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--charcoal-light);
}

.test-case-result.pass {
  color: var(--success-green);
}

.test-case-result.fail {
  color: var(--danger-red);
}

.test-case-output {
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.8125rem;
  background-color: var(--bg-light);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  margin-top: 0.375rem;
  white-space: pre-wrap;
  word-break: break-all;
  border: 1px solid var(--border-grey);
  color: var(--charcoal-dark);
}

.test-case-output.stderr {
  color: var(--danger-red);
  background-color: var(--danger-red-light);
  border-color: var(--danger-red);
}

/* ============================================================
   31. SUBMISSION OVERLAY
   ============================================================ */

.submission-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(43, 43, 43, 0.88);
  z-index: 9998;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  color: var(--bg-white);
  padding: 2rem;
}

.submission-overlay.visible {
  display: flex;
}

.submission-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid rgba(255, 255, 255, 0.2);
  border-top-color: var(--bg-white);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  flex-shrink: 0;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.submission-overlay-text {
  font-size: 1.125rem;
  font-weight: 700;
  text-align: center;
  line-height: 1.5;
}

.submission-overlay-sub {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.65);
  text-align: center;
  line-height: 1.6;
}

/* ============================================================
   32. CONFIRM SUBMIT MODAL
   ============================================================ */

.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(43, 43, 43, 0.72);
  z-index: 9000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-overlay.visible {
  display: flex;
}

.modal-box {
  background-color: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  max-width: 440px;
  width: 100%;
  box-shadow: var(--shadow-lg);
}

.modal-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--charcoal-dark);
  margin-bottom: 0.75rem;
}

.modal-text {
  font-size: 0.9375rem;
  color: var(--charcoal-mid);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.modal-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: flex-end;
}

/* ============================================================
   33. EMPTY QUESTION BANK NOTICE
   ============================================================ */

.empty-bank-notice {
  text-align: center;
  padding: 3rem 2rem;
  background-color: var(--bg-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-grey);
  box-shadow: var(--shadow-sm);
}

.empty-bank-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  display: block;
}

.empty-bank-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--charcoal-dark);
  margin-bottom: 0.5rem;
}

.empty-bank-text {
  font-size: 0.9375rem;
  color: var(--charcoal-light);
  line-height: 1.7;
}

/* ============================================================
   29. RESPONSIVE - MOBILE (max-width: 480px)
   ============================================================ */

@media (max-width: 480px) {
  .test-timer {
    font-size: 1rem;
  }

  .question-text {
    font-size: 1rem;
  }

  .mcq-option {
    padding: 0.75rem 1rem;
  }

  .page-title {
    font-size: 1.25rem;
  }

  .page-subtitle {
    font-size: 1rem;
  }

  .briefing-stat-value {
    font-size: 1.25rem;
  }

  .btn-large {
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
  }

  .question-meta {
    gap: 0.375rem;
  }

  .confirmation-detail-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
  }

  .confirmation-detail-value {
    text-align: left;
  }
}
/* ============================================================
   MOBILE BLOCK SCREEN
   ============================================================ */

#mobileBlockScreen {
  display: none;
}

html.device-blocked body > *:not(#mobileBlockScreen) {
  display: none !important;
}

html.device-blocked #mobileBlockScreen {
  display: flex !important;
}

.mobile-block-screen {
  position: fixed;
  inset: 0;
  background-color: #2B2B2B;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  text-align: center;
  z-index: 99999;
  gap: 1.5rem;
}

.mobile-block-logo {
  height: 48px;
  width: auto;
  margin-bottom: 0.5rem;
}

.mobile-block-heading {
  color: #ffffff;
  font-size: 1.75rem;
  font-weight: 700;
  font-family: 'Montserrat', sans-serif;
  margin: 0;
}

.mobile-block-message {
  color: #cccccc;
  font-size: 1.0625rem;
  font-family: 'Montserrat', sans-serif;
  line-height: 1.7;
  max-width: 480px;
  margin: 0;
}

.mobile-block-note {
  color: #B0B0B0;
  font-size: 0.8125rem;
  font-family: 'Montserrat', sans-serif;
  margin: 0;
}

.mobile-block-note a {
  color: #7ab3ff;
  text-decoration: none;
}

/* ============================================================
   PREFERS REDUCED MOTION
   ============================================================ */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .test-timer.warning {
    animation: none;
  }

  .submission-spinner {
    animation: none;
  }

  .btn-primary:hover {
    transform: none;
  }

  .question-nav-dot:hover {
    transform: none;
  }

  .question-nav-dot.current {
    transform: none;
  }

  .step.active {
    animation: none;
    opacity: 1;
    transform: none;
  }
}
