/* MBTI Test - Modern Bento Grid Design
   Dark theme with vibrant accent colors for Gen Z
*/

:root {
  --bg: #0b0f1a;
  --bg-card: #141c2a;
  --bg-card-hover: #1a2438;
  --text: #e8eefc;
  --text-muted: #a9b4d1;
  --accent-green: #4cd6a3;
  --accent-cyan: #4aa2ff;
  --accent-purple: #a855f7;
  --accent-orange: #f59e0b;
  --accent-pink: #ec4899;
  --accent-blue: #3b82f6;
  --radius: 16px;
  --radius-sm: 12px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html, body {
  height: 100%;
  background: linear-gradient(135deg, #0e1020 0%, #0b0f1a 50%, #0d1220 100%);
  color: var(--text);
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 24px;
  background: rgba(11, 15, 26, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  box-sizing: border-box;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-shrink: 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
  width: fit-content;
  flex-shrink: 0;
}

.logo-icon {
  font-size: 28px;
  filter: drop-shadow(0 2px 8px rgba(76, 214, 163, 0.3));
}

.logo-text {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.logo-text span {
  color: var(--accent-green);
}

/* Main Content */
.main {
  padding-top: 90px;
  min-height: 100vh;
}

/* Page Visibility */
.page {
  display: none;
  padding: 24px;
  opacity: 0;
  animation: fadeIn 0.4s ease forwards;
}

.page.active {
  display: block;
}

.page.visible {
  opacity: 1;
}

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

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

.animate-slideUp {
  animation: slideUp 0.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.stagger-1 { animation-delay: 0.1s; opacity: 0; }
.stagger-2 { animation-delay: 0.2s; opacity: 0; }
.stagger-3 { animation-delay: 0.3s; opacity: 0; }
.stagger-4 { animation-delay: 0.4s; opacity: 0; }
.stagger-5 { animation-delay: 0.5s; opacity: 0; }
.stagger-6 { animation-delay: 0.6s; opacity: 0; }

/* Bento Grid - Home Page */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px 0;
}

.bento-card {
  background: linear-gradient(135deg, rgba(255,255,255,0.04) 0%, rgba(255,255,255,0.02) 100%);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 160px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.bento-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--card-accent, var(--accent-green)), transparent);
  opacity: 0;
  transition: var(--transition);
}

.bento-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: rgba(255,255,255,0.15);
}

.bento-card:hover::before {
  opacity: 1;
}

.bento-card.large {
  grid-column: span 2;
  grid-row: span 2;
  min-height: 340px;
}

.bento-card.wide {
  grid-column: span 2;
}

.bento-card.purple { --card-accent: var(--accent-purple); }
.bento-card.cyan { --card-accent: var(--accent-cyan); }
.bento-card.green { --card-accent: var(--accent-green); }
.bento-card.orange { --card-accent: var(--accent-orange); }
.bento-card.blue { --card-accent: var(--accent-blue); }
.bento-card.pink { --card-accent: var(--accent-pink); }

/* Hero Card */
.hero-card {
  background: linear-gradient(135deg, rgba(76, 214, 163, 0.08) 0%, rgba(74, 162, 255, 0.05) 100%);
  border-color: rgba(76, 214, 163, 0.2);
}

.hero-title {
  font-size: 42px;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--text) 0%, var(--accent-green) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 28px;
  max-width: 340px;
}

/* Start Button */
.start-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 32px;
  background: linear-gradient(135deg, var(--accent-green) 0%, #3dd492 100%);
  color: #04140e;
  border: none;
  border-radius: 50px;
  font-size: 18px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(76, 214, 163, 0.3);
}

.start-btn:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 30px rgba(76, 214, 163, 0.4);
}

.start-btn .arrow {
  font-size: 20px;
  transition: var(--transition);
}

.start-btn:hover .arrow {
  transform: translateX(4px);
}

/* Card Content */
.card-icon {
  font-size: 32px;
  margin-bottom: 12px;
}

.card-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}

.card-description {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.5;
}

.card-stat {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 24px;
  font-weight: 800;
  color: var(--card-accent, var(--accent-green));
  opacity: 0.6;
}

/* Types Card */
.types-card {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.type-badge {
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  background: rgba(255,255,255,0.08);
  color: var(--text-muted);
  transition: var(--transition);
}

.type-badge:hover {
  background: rgba(255,255,255,0.15);
  color: var(--text);
}

.type-badge.analysts { border-left: 3px solid var(--accent-purple); }
.type-badge.diplomats { border-left: 3px solid var(--accent-green); }
.type-badge.sentinels { border-left: 3px solid var(--accent-blue); }
.type-badge.explorers { border-left: 3px solid var(--accent-orange); }

/* Quiz Page */
.quiz-page {
  max-width: 700px;
  margin: 0 auto;
  padding: 40px 24px;
}

.quiz-header {
  margin-bottom: 32px;
}

.quiz-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.quit-btn {
  padding: 8px 16px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 20px;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.quit-btn:hover {
  background: rgba(255,255,255,0.12);
  color: var(--text);
  border-color: rgba(255,255,255,0.2);
}

.prev-btn {
  padding: 8px 16px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 20px;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.prev-btn:hover:not(:disabled) {
  background: rgba(255,255,255,0.12);
  color: var(--text);
  border-color: rgba(255,255,255,0.2);
}

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

.progress-container {
  background: rgba(255,255,255,0.04);
  border-radius: 50px;
  padding: 4px 15px;
}

.progress-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.progress-text {
  font-size: 14px;
  color: var(--text-muted);
}

.progress-percent {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-green);
}

.progress-bar {
  height: 8px;
  background: rgba(255,255,255,0.1);
  border-radius: 50px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-green), var(--accent-cyan));
  border-radius: 50px;
  transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 0 12px rgba(76, 214, 163, 0.5);
}

/* Quiz Content */
.quiz-content {
  background: linear-gradient(135deg, rgba(255,255,255,0.04) 0%, rgba(255,255,255,0.02) 100%);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: 32px;
}

.dimension-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.dim-tag {
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  background: rgba(255,255,255,0.06);
  color: var(--text-muted);
  transition: var(--transition);
}

.dim-tag.active {
  background: linear-gradient(135deg, var(--accent-purple), var(--accent-pink));
  color: white;
  box-shadow: 0 4px 15px rgba(168, 85, 247, 0.3);
}

.question-number {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.question-text {
  font-size: 22px;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 28px;
}

/* Options */
.options-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.option-item {
  background: rgba(255,255,255,0.04);
  border: 2px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.option-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--accent-green);
  transform: scaleY(0);
  transition: var(--transition);
}

.option-item:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.15);
  transform: translateX(4px);
}

.option-item:hover::before {
  transform: scaleY(1);
}

.option-item.selected {
  background: linear-gradient(135deg, rgba(76, 214, 163, 0.15) 0%, rgba(74, 162, 255, 0.1) 100%);
  border-color: var(--accent-green);
}

.option-item.selected::before {
  transform: scaleY(1);
}

.option-text {
  font-size: 16px;
  line-height: 1.5;
}

/* Likert Scale Options */
.likert-options {
  flex-direction: row !important;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

.likert-options .option-item {
  flex: 1 1 calc(18% - 10px);
  min-width: 70px;
  max-width: 120px;
  padding: 16px 8px;
  text-align: center;
}

.likert-options .option-text {
  font-size: 14px;
  font-weight: 500;
}

.likert-options .option-item::before {
  left: 0;
  right: 0;
  top: 0;
  bottom: auto;
  width: auto;
  height: 3px;
}

/* Phrase Labels */
.phrase-labels {
  display: flex;
  justify-content: space-between;
  margin-bottom: 24px;
  padding: 0 10px;
  gap: 16px;
}

.phrase-label {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  flex: 1;
  max-width: 50%;
  gap: 6px;
}

.phrase-left {
  align-items: flex-start;
}

.phrase-right {
  align-items: flex-end;
  text-align: right;
}

.phrase-letter {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 28px;
  border-radius: 14px;
  font-weight: 600;
  font-size: 13px;
  background: linear-gradient(135deg, var(--accent-green) 0%, #3B82F6 100%);
  color: var(--bg);
}

.phrase-right .phrase-letter {
  background: linear-gradient(135deg, #8B5CF6 0%, #EC4899 100%);
}

.phrase-text {
  font-size: 15px;
  color: rgba(255,255,255,0.85);
  line-height: 1.4;
  word-break: break-word;
  white-space: normal;
}

/* Results Page */
.results-page {
  max-width: 800px;
  margin: 0 auto;
  padding-top: 40px;
}

.results-header {
  text-align: center;
  margin-bottom: 32px;
}

.results-title {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 12px;
  background: linear-gradient(135deg, var(--text) 0%, var(--accent-green) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.results-subtitle {
  font-size: 16px;
  color: var(--text-muted);
}

/* Result Card */
.result-card {
  background: linear-gradient(135deg, rgba(255,255,255,0.06) 0%, rgba(255,255,255,0.02) 100%);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 40px;
  text-align: center;
  margin-bottom: 32px;
  position: relative;
  overflow: hidden;
}

.result-type-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.result-type {
  font-size: 72px;
  font-weight: 900;
  letter-spacing: 8px;
  line-height: 1;
}

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

.result-name {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 4px;
}

.result-english {
  font-size: 16px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 8px;
}

.result-group {
  font-size: 14px;
  color: var(--text-muted);
}

.result-group span {
  color: var(--accent-purple);
}

.result-description {
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-muted);
  max-width: 500px;
  margin: 0 auto;
}

/* Analysis Sections */
.analysis-section {
  margin-bottom: 28px;
}

.analysis-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.analysis-title .icon {
  font-size: 24px;
}

.analysis-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.analysis-card {
  background: linear-gradient(135deg, rgba(255,255,255,0.04) 0%, rgba(255,255,255,0.02) 100%);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-sm);
  padding: 20px;
}

.analysis-card-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--analysis-color);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.analysis-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.analysis-tag {
  padding: 8px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  background: rgba(255,255,255,0.08);
  color: var(--text);
}

.analysis-text {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-muted);
}

/* Result Actions */
.result-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 40px;
}

.action-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border: none;
  border-radius: 50px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.action-btn.primary {
  background: linear-gradient(135deg, var(--accent-green) 0%, #3dd492 100%);
  color: #04140e;
  box-shadow: 0 4px 20px rgba(76, 214, 163, 0.3);
}

.action-btn.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(76, 214, 163, 0.4);
}

/* Responsive Design */
@media (max-width: 900px) {
  .bento-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .bento-card.large {
    grid-column: span 2;
    grid-row: span 1;
    min-height: 280px;
  }
  
  .bento-card.wide {
    grid-column: span 2;
  }
  
  .hero-title {
    font-size: 32px;
  }
}

@media (max-width: 600px) {
  .header {
    padding: 12px 16px;
  }
  
  .logo-icon {
    font-size: 24px;
  }
  
  .logo-text {
    font-size: 18px;
  }
  
  .main {
    padding-top: 70px;
  }
  
  .page {
    padding: 16px;
  }
  
  .bento-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  
  .bento-card {
    min-height: 140px;
    padding: 20px;
  }
  
  .bento-card.large,
  .bento-card.wide {
    grid-column: span 1;
  }
  
  .hero-card {
    min-height: 260px;
  }
  
  .hero-title {
    font-size: 28px;
  }
  
  .hero-subtitle {
    font-size: 14px;
  }
  
  .start-btn {
    padding: 14px 24px;
    font-size: 16px;
  }
  
  .card-icon {
    font-size: 28px;
  }
  
  .card-title {
    font-size: 16px;
  }
  
  .card-description {
    font-size: 13px;
  }
  
  .types-card {
    gap: 6px;
  }
  
  .type-badge {
    padding: 4px 10px;
    font-size: 11px;
  }
  
  /* Quiz responsive */
  .quiz-content {
    padding: 24px 20px;
  }
  
  .question-text {
    font-size: 18px;
  }
  
  .option-item {
    padding: 16px 18px;
  }
  
  .option-text {
    font-size: 15px;
  }
  
  /* Likert Options Mobile */
  .likert-options {
    flex-direction: row;
    gap: 6px;
  }
  
  .likert-options .option-item {
    flex: 1 1 calc(18% - 6px);
    min-width: 50px;
    padding: 12px 4px;
  }
  
  .likert-options .option-text {
    font-size: 11px;
  }
  
  .phrase-labels {
    flex-direction: row;
    gap: 6px;
    padding: 0 4px;
    margin-bottom: 16px;
  }
  
  .phrase-label {
    max-width: 50%;
    gap: 6px;
  }
  
  .phrase-letter {
    width: 100%;
    height: 24px;
    font-size: 12px;
  }
  
  .phrase-text {
    font-size: 13px;
  }
  
  /* Results responsive */
  .result-card {
    padding: 28px 20px;
  }
  
  .result-type {
    font-size: 48px;
    letter-spacing: 4px;
  }
  
  .result-name {
    font-size: 22px;
  }
  
  .analysis-grid {
    grid-template-columns: 1fr;
  }
  
  .results-title {
    font-size: 28px;
  }
  
  .result-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .action-btn {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }
}

/* Keyboard hint */
@media (hover: none) and (pointer: coarse) {
  .option-item:active {
    background: rgba(255,255,255,0.08);
    transform: scale(0.98);
  }
}