/* ===================================
   Algoritme Checker - Wizard Style
   =================================== */

:root {
  --bg-primary: #0a0f0d;
  --bg-secondary: #111916;
  --bg-card: #151d19;
  --bg-card-hover: #1a2420;
  --accent: #3b82f6;
  --accent-dim: #1d4ed8;
  --accent-glow: rgba(59, 130, 246, 0.2);
  --success: #10b981;
  --success-bg: rgba(16, 185, 129, 0.15);
  --danger: #ef4444;
  --danger-bg: rgba(239, 68, 68, 0.15);
  --warning: #f59e0b;
  --warning-bg: rgba(245, 158, 11, 0.15);
  --text-primary: #e8f0ec;
  --text-secondary: #8b9d94;
  --text-muted: #5a6b62;
  --border: #243029;
  --border-light: #2d3d34;
  --radius: 12px;
  --radius-sm: 8px;
}

*, *::before, *::after {
  box-sizing: border-box;
}

body {
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  margin: 0;
  padding: 20px;
  min-height: 100vh;
  line-height: 1.6;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  opacity: 0.03;
  pointer-events: none;
  z-index: 1000;
}

.container {
  max-width: 600px;
  margin: 0 auto;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  min-height: 500px;
}

/* ===================================
   Welcome Screen
   =================================== */
.welcome-screen {
  padding: 50px 30px;
  text-align: center;
}

.welcome-screen h1 {
  color: var(--text-primary);
  font-size: 1.75rem;
  margin: 0 0 15px;
  font-weight: 600;
}

.welcome-screen > p {
  color: var(--text-secondary);
  max-width: 400px;
  margin: 0 auto 25px;
  font-size: 0.95rem;
}

.welcome-screen ul {
  text-align: left;
  max-width: 300px;
  margin: 0 auto 30px;
  padding-left: 0;
  list-style: none;
}

.welcome-screen li {
  margin-bottom: 10px;
  color: var(--text-secondary);
  padding-left: 24px;
  position: relative;
  font-size: 0.9rem;
}

.welcome-screen li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
}

.welcome-button {
  background: var(--accent);
  color: white;
  border: none;
  padding: 14px 40px;
  font-size: 1rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 600;
  transition: all 0.2s;
}

.welcome-button:hover {
  background: var(--accent-dim);
  transform: translateY(-2px);
}

.info-box {
  background: var(--bg-card);
  padding: 15px 20px;
  border-radius: var(--radius-sm);
  margin-top: 30px;
  max-width: 300px;
  margin-left: auto;
  margin-right: auto;
  border: 1px solid var(--border);
}

.info-box p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.info-box a {
  color: var(--accent);
  text-decoration: none;
}

.info-box hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 10px 0;
}

/* ===================================
   Main App & Progress Bar
   =================================== */
.main-app {
  display: flex;
  flex-direction: column;
  min-height: 500px;
}

.progress-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px 30px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  gap: 0;
}

.progress-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  transition: all 0.2s;
}

.progress-step span {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.step-dot {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg-secondary);
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: all 0.2s;
}

.progress-step.active .step-dot {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.progress-step.active span {
  color: var(--accent);
}

.progress-step.completed .step-dot {
  background: var(--success);
  border-color: var(--success);
  color: white;
}

.progress-line {
  width: 40px;
  height: 2px;
  background: var(--border);
  margin: 0 8px;
  margin-bottom: 20px;
}

/* ===================================
   Step Content
   =================================== */
.step-content {
  display: none;
  padding: 30px;
  flex: 1;
  animation: fadeIn 0.3s ease;
}

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

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

.step-content h1 {
  font-size: 1.3rem;
  color: var(--text-primary);
  margin: 0 0 8px;
  font-weight: 600;
}

.intro-text {
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-size: 0.9rem;
}

/* ===================================
   Concept Cards (Step 1)
   =================================== */
.concept-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px;
  margin-bottom: 16px;
}

.concept-card.highlight {
  border-color: var(--accent);
  background: var(--accent-glow);
}

.concept-card h3 {
  margin: 0 0 10px;
  font-size: 1rem;
  color: var(--text-primary);
}

.concept-card p {
  margin: 0 0 10px;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.concept-card .formula {
  background: var(--bg-primary);
  padding: 10px 14px;
  border-radius: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--accent);
  border: 1px solid var(--border);
  margin: 12px 0;
}

.concept-card .example {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-style: italic;
  margin: 0;
}

/* ===================================
   Examples Section (Step 2)
   =================================== */
.examples-section {
  margin-bottom: 20px;
}

.examples-section h3 {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin: 0 0 12px;
  font-weight: 500;
}

.example-buttons {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.example-btn {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  text-align: left;
  cursor: pointer;
  transition: all 0.2s;
}

.example-btn:hover {
  border-color: var(--accent);
}

.example-btn.active {
  border-color: var(--accent);
  background: var(--accent-glow);
}

.example-btn strong {
  display: block;
  color: var(--text-primary);
  font-size: 0.8rem;
  margin-bottom: 2px;
}

.example-btn span {
  display: block;
  color: var(--text-muted);
  font-size: 0.7rem;
}

.example-info {
  margin-top: 12px;
  padding: 12px 14px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent);
}

.example-info p {
  margin: 0;
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.divider {
  border: none;
  height: 1px;
  background: var(--border);
  margin: 20px 0;
}

/* ===================================
   Input Grid (Step 2)
   =================================== */
.input-grid {
  display: grid;
  gap: 18px;
}

.input-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.input-group input[type="number"] {
  width: 100%;
  max-width: 150px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  background: var(--bg-card);
  color: var(--text-primary);
}

.input-group input[type="number"]:focus {
  outline: none;
  border-color: var(--accent);
}

.slider-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.slider-row input[type="range"] {
  flex: 1;
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  outline: none;
  -webkit-appearance: none;
}

.slider-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  background: var(--accent);
  border-radius: 50%;
  cursor: pointer;
}

.slider-value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent);
  min-width: 50px;
  text-align: right;
  font-family: 'JetBrains Mono', monospace;
}

/* ===================================
   Navigation Buttons
   =================================== */
.nav-buttons {
  display: flex;
  justify-content: space-between;
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.btn-back, .btn-next {
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-back {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
}

.btn-back:hover {
  border-color: var(--text-muted);
  color: var(--text-primary);
}

.btn-next {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-primary);
}

.btn-next:hover {
  border-color: var(--accent);
}

.btn-next.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.btn-next.btn-primary:hover {
  background: var(--accent-dim);
}

/* ===================================
   Results (Step 3)
   =================================== */
.results-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}

.results-cards.small {
  grid-template-columns: repeat(4, 1fr);
}

.result-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  text-align: center;
}

.result-card.large {
  padding: 24px 16px;
}

.result-card .label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.result-card .value {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-primary);
  font-family: 'JetBrains Mono', monospace;
}

.result-card.large .value {
  font-size: 2.2rem;
}

.result-card .sublabel {
  font-size: 0.65rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.results-cards.small .result-card {
  padding: 12px 8px;
}

.results-cards.small .result-card .value {
  font-size: 1.1rem;
}

.result-card.success {
  border-color: var(--success);
  background: var(--success-bg);
}
.result-card.success .value { color: var(--success); }

.result-card.danger {
  border-color: var(--danger);
  background: var(--danger-bg);
}
.result-card.danger .value { color: var(--danger); }

.result-card.warning {
  border-color: var(--warning);
  background: var(--warning-bg);
}
.result-card.warning .value { color: var(--warning); }

/* ===================================
   Visualization
   =================================== */
.viz-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px;
  margin-bottom: 16px;
}

.viz-section h3 {
  margin: 0 0 4px;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.viz-section .subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.people-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 3px;
  padding: 16px;
  background: var(--bg-primary);
  border-radius: var(--radius-sm);
  min-height: 50px;
  justify-content: center;
  margin-bottom: 12px;
}

.person-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.person-dot.true-positive { background: var(--success); }
.person-dot.false-positive { background: var(--danger); }

.legend {
  display: flex;
  gap: 16px;
  justify-content: center;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

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

.legend-dot.true-positive { background: var(--success); }
.legend-dot.false-positive { background: var(--danger); }

/* ===================================
   Interpretation
   =================================== */
.interpretation {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px;
  margin-bottom: 16px;
}

.interpretation h3 {
  margin: 0 0 12px;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.interpretation p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
}

.highlight {
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 4px;
}

.highlight.good {
  background: var(--success-bg);
  color: var(--success);
}

.highlight.bad {
  background: var(--danger-bg);
  color: var(--danger);
}

/* ===================================
   Impact Message
   =================================== */
.impact-message {
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  margin-bottom: 16px;
  background: var(--warning-bg);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.impact-message.good {
  background: var(--success-bg);
  border-color: rgba(16, 185, 129, 0.3);
}

.impact-message.bad {
  background: var(--danger-bg);
  border-color: rgba(239, 68, 68, 0.3);
}

.impact-message h4 {
  margin: 0 0 6px;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.impact-message p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.85rem;
}

/* ===================================
   Bayes Details
   =================================== */
.bayes-details {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
}

.bayes-details summary {
  padding: 14px 18px;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.bayes-details summary:hover {
  color: var(--text-primary);
}

.bayes-content {
  padding: 0 18px 18px;
}

.bayes-content p {
  margin: 0 0 12px;
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.bayes-formula {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  text-align: center;
  color: var(--accent);
  margin: 12px 0;
}

/* ===================================
   Footer
   =================================== */
.footer {
  text-align: center;
  padding: 16px;
  border-top: 1px solid var(--border);
  margin-top: auto;
}

.footer a {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-decoration: none;
}

.footer a:hover {
  color: var(--accent);
}

/* ===================================
   Responsive
   =================================== */
@media (max-width: 500px) {
  body {
    padding: 10px;
  }

  .step-content {
    padding: 20px;
  }

  .example-buttons {
    grid-template-columns: repeat(2, 1fr);
  }

  .results-cards.small {
    grid-template-columns: repeat(2, 1fr);
  }

  .progress-line {
    width: 20px;
  }

  .slider-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .slider-row input[type="range"] {
    width: 100%;
  }

  .slider-value {
    text-align: left;
  }
}

/* ===================================
   Back to Dashboard Button
   =================================== */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.back-link:hover {
  color: var(--accent);
  background: var(--bg-card);
}

.back-link svg {
  width: 18px;
  height: 18px;
}