/* FifthBench Interactive Survey - Design System & Modern Styling */
:root {
  --bg-dark: #0f172a;
  --bg-card: rgba(30, 41, 59, 0.7);
  --bg-card-hover: rgba(51, 65, 85, 0.8);
  --bg-glass: rgba(15, 23, 42, 0.65);
  
  --primary-emerald: #10b981;
  --primary-emerald-glow: rgba(16, 185, 129, 0.25);
  --primary-teal: #14b8a6;
  --accent-gold: #f59e0b;
  --accent-indigo: #6366f1;

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-sub: #cbd5e1;

  --border-glass: rgba(255, 255, 255, 0.1);
  --border-active: #10b981;

  --radius-xl: 20px;
  --radius-lg: 14px;
  --radius-md: 10px;

  --font-family: 'JetBrains Mono', 'IBM Plex Mono', SFMono-Regular, Consolas, 'Liberation Mono', Menlo, monospace;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font-family);
  background: radial-gradient(circle at 15% 15%, #064e3b 0%, #0f172a 50%, #022c22 100%);
  background-attachment: fixed;
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow-x: hidden;
  line-height: 1.6;
}

/* Ambient Animated Glow Elements */
.ambient-glow-1 {
  position: fixed;
  top: -100px;
  left: -100px;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}

.ambient-glow-2 {
  position: fixed;
  bottom: -150px;
  right: -100px;
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.12) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}

.app-container {
  width: 100%;
  max-width: 860px;
  padding: 24px 20px 60px 20px;
  position: relative;
  z-index: 1;
}

/* Header & Branding */
.brand-header {
  text-align: center;
  margin-bottom: 24px;
}

.brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary-emerald);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.brand-logo {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, #ffffff 0%, #a7f3d0 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-subtitle {
  color: var(--text-muted);
  font-size: 0.98rem;
  margin-top: 4px;
}

/* Progress Section Header */
.progress-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 18px 24px;
  margin-bottom: 28px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  position: sticky;
  top: 16px;
  z-index: 10;
}

.progress-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
  font-size: 0.9rem;
}

.section-label {
  font-weight: 700;
  color: var(--primary-emerald);
  display: flex;
  align-items: center;
  gap: 6px;
}

.progress-percentage {
  font-weight: 700;
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 10px;
  border-radius: 12px;
}

.progress-track {
  width: 100%;
  height: 10px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  overflow: hidden;
  position: relative;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary-emerald), var(--primary-teal));
  border-radius: 10px;
  transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 0 12px var(--primary-emerald-glow);
}

.step-indicators {
  display: flex;
  justify-content: space-between;
  margin-top: 12px;
  position: relative;
}

.step-dot {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.15);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  transition: var(--transition);
  cursor: pointer;
}

.step-dot.active {
  background: var(--primary-emerald);
  border-color: #6ee7b7;
  color: #064e3b;
  box-shadow: 0 0 14px var(--primary-emerald-glow);
}

.step-dot.completed {
  background: rgba(16, 185, 129, 0.25);
  border-color: var(--primary-emerald);
  color: var(--primary-emerald);
}

/* Card Step Component */
.survey-step {
  display: none;
  animation: fadeIn 0.4s ease-out forwards;
}

.survey-step.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.card-box {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-xl);
  padding: 32px;
  margin-bottom: 24px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
}

.card-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-description {
  color: var(--text-muted);
  font-size: 0.96rem;
  margin-bottom: 24px;
}

/* Context Banner Cards */
.context-banner {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.12) 0%, rgba(99, 102, 241, 0.12) 100%);
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  margin-bottom: 28px;
  position: relative;
}

.context-banner h4 {
  color: var(--primary-emerald);
  font-size: 1.05rem;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.context-banner p {
  color: var(--text-sub);
  font-size: 0.92rem;
  line-height: 1.55;
}

/* Question Group */
.question-group {
  margin-bottom: 32px;
}

.question-group:last-child {
  margin-bottom: 0;
}

.question-label {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 6px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.required-star {
  color: #ef4444;
  font-weight: 700;
}

.question-hint {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 14px;
  margin-left: 4px;
}

/* Option Cards (Radio & Checkbox) */
.options-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 14px;
}

.options-grid.grid-2col {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.option-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1.5px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 14px;
  cursor: pointer;
  transition: var(--transition);
  user-select: none;
  position: relative;
}

.option-card:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(16, 185, 129, 0.4);
  transform: translateY(-2px);
}

.option-card.selected {
  background: rgba(16, 185, 129, 0.12);
  border-color: var(--primary-emerald);
  box-shadow: 0 4px 16px var(--primary-emerald-glow);
}

.radio-indicator,
.checkbox-indicator {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition);
}

.checkbox-indicator {
  border-radius: 6px;
}

.option-card.selected .radio-indicator,
.concept-card.selected .radio-indicator {
  border-color: var(--primary-emerald);
  background: var(--primary-emerald);
}

.option-card.selected .radio-indicator::after,
.concept-card.selected .radio-indicator::after {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #064e3b;
}

.option-card.selected .checkbox-indicator {
  border-color: var(--primary-emerald);
  background: var(--primary-emerald);
}

.option-card.selected .checkbox-indicator::after {
  content: '✓';
  color: #064e3b;
  font-size: 13px;
  font-weight: 800;
}

.option-text {
  font-size: 0.96rem;
  color: var(--text-sub);
  flex-grow: 1;
}

.option-card.selected .option-text {
  color: var(--text-main);
  font-weight: 600;
}

/* Custom Text Input for 'Other' option */
.other-input-container {
  margin-top: 10px;
  display: none;
  width: 100%;
}

.other-input-container.active {
  display: block;
}

.text-input {
  width: 100%;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
}

.text-input:focus {
  border-color: var(--primary-emerald);
  box-shadow: 0 0 10px var(--primary-emerald-glow);
}

/* Concept Cards Grid with Images */
.concepts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.concept-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1.5px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.concept-card:hover {
  transform: translateY(-4px);
  border-color: rgba(16, 185, 129, 0.4);
}

.concept-card.selected {
  border-color: var(--primary-emerald);
  box-shadow: 0 6px 20px var(--primary-emerald-glow);
  background: rgba(16, 185, 129, 0.1);
}

.concept-img-wrapper {
  width: 100%;
  height: 300px;
  background: rgba(15, 23, 42, 0.85);
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
  border-bottom: 1px solid var(--border-glass);
}

.concept-img {
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  object-position: center;
  transition: opacity 0.3s ease;
  border-radius: var(--radius-md);
}

.concept-card:hover .concept-img {
  opacity: 0.95;
}

.concept-body {
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.concept-title {
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text-main);
}

/* Rating Scale (1-5) Component */
.rating-container {
  display: flex;
  gap: 12px;
  margin-top: 14px;
  justify-content: space-between;
}

.rating-btn {
  flex: 1;
  background: rgba(255, 255, 255, 0.04);
  border: 1.5px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 16px 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  transition: var(--transition);
}

.rating-btn:hover {
  border-color: var(--primary-emerald);
  background: rgba(16, 185, 129, 0.08);
}

.rating-btn.selected {
  background: var(--primary-emerald);
  border-color: #6ee7b7;
  color: #064e3b;
  box-shadow: 0 4px 14px var(--primary-emerald-glow);
}

.rating-number {
  font-size: 1.3rem;
  font-weight: 800;
}

.rating-btn.selected .rating-number {
  color: #064e3b;
}

.rating-label-text {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-align: center;
  font-weight: 600;
}

.rating-btn.selected .rating-label-text {
  color: #064e3b;
}

/* Full Kit Feature Card */
.kit-feature-card {
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.9) 0%, rgba(15, 23, 42, 0.9) 100%);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: var(--radius-lg);
  padding: 22px;
  margin-bottom: 24px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.kit-badge-icon {
  width: 44px;
  height: 44px;
  background: rgba(245, 158, 11, 0.15);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.kit-title {
  color: var(--accent-gold);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.kit-desc {
  color: var(--text-sub);
  font-size: 0.9rem;
  line-height: 1.5;
}

/* Textarea styling */
.feedback-textarea {
  width: 100%;
  min-height: 110px;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.95rem;
  resize: vertical;
  outline: none;
  transition: var(--transition);
}

.feedback-textarea:focus {
  border-color: var(--primary-emerald);
  box-shadow: 0 0 12px var(--primary-emerald-glow);
}

/* Alert Notification */
.alert-banner {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #fca5a5;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 20px;
  display: none;
  align-items: center;
  gap: 10px;
  animation: shake 0.3s ease;
}

.alert-svg {
  flex-shrink: 0;
  stroke: #fca5a5;
}

.question-group {
  transition: var(--transition);
  padding: 8px;
  border-radius: var(--radius-lg);
}

.question-group.has-error {
  border: 1.5px solid rgba(239, 68, 68, 0.6);
  background: rgba(239, 68, 68, 0.08);
  box-shadow: 0 0 16px rgba(239, 68, 68, 0.25);
  animation: shake 0.4s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  75% { transform: translateX(6px); }
}

/* Controls Footer */
.card-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--border-glass);
}

.btn {
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: none;
  outline: none;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-sub);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.14);
  color: var(--text-main);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-emerald) 0%, var(--primary-teal) 100%);
  color: #042f2e;
  box-shadow: 0 4px 16px var(--primary-emerald-glow);
}

.btn-primary:hover {
  opacity: 0.92;
  transform: translateY(-2px);
  box-shadow: 0 6px 22px var(--primary-emerald-glow);
}

/* Completion Screen */
.completion-box {
  text-align: center;
  padding: 40px 24px;
}

.celebration-icon {
  width: 72px;
  height: 72px;
  background: rgba(16, 185, 129, 0.15);
  border: 2px solid var(--primary-emerald);
  color: var(--primary-emerald);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px auto;
  box-shadow: 0 0 24px var(--primary-emerald-glow);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.06); }
  100% { transform: scale(1); }
}

.summary-container {
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 20px;
  text-align: left;
  margin: 24px 0;
  max-height: 380px;
  overflow-y: auto;
}

.summary-item {
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.summary-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

.summary-q {
  font-size: 0.88rem;
  color: var(--text-muted);
  font-weight: 600;
}

.summary-a {
  font-size: 0.96rem;
  color: var(--primary-emerald);
  font-weight: 700;
  margin-top: 2px;
}

/* Responsive Styles */
@media (max-width: 640px) {
  .card-box {
    padding: 20px 16px;
  }
  
  .rating-container {
    gap: 6px;
  }
  
  .rating-btn {
    padding: 12px 4px;
  }
  
  .rating-number {
    font-size: 1.1rem;
  }

  .step-dot {
    width: 24px;
    height: 24px;
    font-size: 0.7rem;
  }

  .concept-img-wrapper {
    height: 320px;
    padding: 10px;
  }
}

/* Landing Page Styles */
.landing-card-wrapper {
  animation: fadeIn 0.5s ease-out forwards;
}

.landing-box {
  text-align: center;
  padding: 44px 32px;
}

.landing-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(16, 185, 129, 0.14);
  border: 1px solid rgba(16, 185, 129, 0.35);
  padding: 8px 18px;
  border-radius: 30px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--primary-emerald);
  letter-spacing: 0.8px;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.landing-title {
  font-size: 2.1rem;
  font-weight: 800;
  line-height: 1.25;
  background: linear-gradient(135deg, #ffffff 0%, #a7f3d0 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 16px;
}

.landing-subtitle {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.6;
  max-width: 660px;
  margin: 0 auto 32px auto;
}

.landing-preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}

.landing-preview-item {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}

.landing-preview-item:hover {
  transform: translateY(-5px);
  border-color: rgba(16, 185, 129, 0.4);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.landing-preview-item img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  display: block;
}

.landing-preview-caption {
  padding: 10px 8px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-sub);
}

.landing-highlights {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.highlight-chip {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 8px 16px;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-sub);
  display: flex;
  align-items: center;
  gap: 8px;
}

.chip-icon {
  font-size: 1.1rem;
}

.landing-cta-group {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-hero {
  padding: 16px 36px;
  font-size: 1.1rem;
  border-radius: 14px;
}

@media (max-width: 640px) {
  .landing-title {
    font-size: 1.6rem;
  }
  .landing-preview-grid {
    grid-template-columns: 1fr;
  }
  .landing-preview-item img {
    height: 180px;
  }
}