/* Railway-branded Template Validator Styles */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

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

:root {
  /* Railway Colors */
  --bg-dark: hsl(250, 24%, 9%);
  --bg-dark-secondary: hsl(250, 21%, 11%);
  --bg-dark-elevated: hsl(250, 18%, 14%);
  --primary-blue: hsl(220, 80%, 55%);
  --accent-pink: hsl(270, 60%, 52%);
  --accent-cyan: hsl(180, 50%, 44%);
  --accent-green: hsl(152, 38%, 42%);
  --text-primary: hsl(0, 0%, 100%);
  --text-secondary: hsl(0, 0%, 70%);
  --text-tertiary: hsl(0, 0%, 50%);
  --border-color: hsl(250, 18%, 20%);
  --error-red: hsl(0, 70%, 60%);
  --warning-yellow: hsl(45, 90%, 60%);

  /* Spacing */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-dark);
  min-height: 100vh;
  padding: 20px;
  position: relative;
  overflow-x: hidden;
}

/* Railway gradient background */
body::before {
  content: '';
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background:
    radial-gradient(circle at 20% 50%, hsla(270, 60%, 52%, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, hsla(220, 80%, 55%, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 40% 20%, hsla(180, 50%, 44%, 0.1) 0%, transparent 50%);
  z-index: -1;
  animation: gradientShift 20s ease infinite;
}

@keyframes gradientShift {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  50% { transform: translate(5%, 5%) rotate(2deg); }
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

header {
  text-align: center;
  color: var(--text-primary);
  margin-bottom: 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

header > * {
  flex: 1 1 100%;
}

h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 12px;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  font-weight: 400;
}

.card {
  background: var(--bg-dark-secondary);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 24px;
  border: 1px solid var(--border-color);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(10px);
}

.form-group {
  margin-bottom: 24px;
}

label {
  display: block;
  margin-bottom: 10px;
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.9375rem;
}

input[type="text"] {
  width: 100%;
  padding: 14px 16px;
  background: var(--bg-dark-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-primary);
  transition: all 0.2s ease;
}

input[type="text"]:focus {
  outline: none;
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px hsla(220, 80%, 55%, 0.15);
}

input[type="text"]::placeholder {
  color: var(--text-tertiary);
}

.help-text {
  display: block;
  margin-top: 8px;
  font-size: 0.875rem;
  color: var(--text-tertiary);
}

.btn {
  padding: 14px 28px;
  border: none;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  display: inline-block;
  font-family: 'Inter', sans-serif;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-pink) 100%);
  color: white;
  box-shadow: 0 4px 16px hsla(220, 80%, 55%, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px hsla(220, 80%, 55%, 0.4);
}

.btn-secondary {
  background: var(--bg-dark-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--bg-dark-secondary);
  border-color: var(--primary-blue);
}

.btn-link {
  color: var(--accent-cyan);
  text-decoration: none;
  padding: 0;
  background: none;
  border: none;
  font-weight: 500;
}

.btn-link:hover {
  color: var(--primary-blue);
  text-decoration: underline;
}

.error-message {
  background: hsla(0, 70%, 60%, 0.1);
  border: 1px solid hsla(0, 70%, 60%, 0.3);
  color: var(--error-red);
  padding: 16px;
  border-radius: var(--radius-md);
  margin-bottom: 24px;
  font-size: 0.9375rem;
}

.info-section {
  margin-top: 32px;
  padding: 24px;
  background: var(--bg-dark-elevated);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
}

.info-section h2 {
  font-size: 1.5rem;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.features-list {
  list-style: none;
  padding-left: 0;
}

.features-list li {
  padding: 12px 0;
  padding-left: 32px;
  position: relative;
  color: var(--text-secondary);
}

.features-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent-green);
  font-weight: bold;
  font-size: 1.25rem;
}

.features-list li strong {
  color: var(--text-primary);
}

.muted {
  color: var(--text-tertiary);
  margin-top: 20px;
  font-size: 0.9375rem;
}

.muted a {
  color: var(--accent-cyan);
  text-decoration: none;
}

.muted a:hover {
  text-decoration: underline;
}

footer {
  text-align: center;
  color: var(--text-tertiary);
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
  font-size: 0.875rem;
}

footer a {
  color: var(--accent-cyan);
  margin: 0 12px;
  text-decoration: none;
}

footer a:hover {
  color: var(--primary-blue);
  text-decoration: underline;
}

/* Results page styles */
.template-info {
  border-left: 4px solid var(--primary-blue);
  background: var(--bg-dark-secondary);
}

.template-info h2 {
  color: var(--text-primary);
  font-size: 1.75rem;
  margin-bottom: 12px;
}

.template-description {
  color: var(--text-secondary);
  margin: 12px 0;
  line-height: 1.6;
}

.template-meta {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

.meta-item {
  font-size: 0.875rem;
  color: var(--text-tertiary);
}

.meta-item code {
  background: var(--bg-dark-elevated);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  font-family: 'JetBrains Mono', monospace;
  color: var(--accent-cyan);
  font-size: 0.8125rem;
}

.meta-item a {
  color: var(--primary-blue);
  text-decoration: none;
}

.meta-item a:hover {
  text-decoration: underline;
}

.score-card {
  background: linear-gradient(135deg, var(--bg-dark-secondary) 0%, var(--bg-dark-elevated) 100%);
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
}

.score-card::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, hsla(220, 80%, 55%, 0.1) 0%, transparent 70%);
}

.score-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}

.score-header h2 {
  color: var(--text-primary);
}

.score {
  font-size: 3rem;
  font-weight: 700;
  padding: 24px 40px;
  background: var(--bg-dark-elevated);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  position: relative;
}

.score-good {
  background: linear-gradient(135deg, hsla(152, 38%, 42%, 0.2) 0%, hsla(152, 38%, 42%, 0.05) 100%);
  border-color: var(--accent-green);
  color: var(--accent-green);
}

.score-medium {
  background: linear-gradient(135deg, hsla(45, 90%, 60%, 0.2) 0%, hsla(45, 90%, 60%, 0.05) 100%);
  border-color: var(--warning-yellow);
  color: var(--warning-yellow);
}

.score-bad {
  background: linear-gradient(135deg, hsla(0, 70%, 60%, 0.2) 0%, hsla(0, 70%, 60%, 0.05) 100%);
  border-color: var(--error-red);
  color: var(--error-red);
}

.score-stats {
  display: flex;
  justify-content: space-around;
  gap: 24px;
  position: relative;
  z-index: 1;
}

.stat {
  text-align: center;
  padding: 16px;
  background: var(--bg-dark-elevated);
  border-radius: var(--radius-md);
  flex: 1;
  border: 1px solid var(--border-color);
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  margin-top: 4px;
}

.results-section {
  margin-top: 32px;
}

.results-section h2 {
  color: var(--text-primary);
  margin-bottom: 24px;
  font-size: 1.5rem;
}

.result-card {
  background: var(--bg-dark-secondary);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 16px;
  border: 1px solid var(--border-color);
  border-left-width: 4px;
  transition: all 0.2s ease;
}

.result-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.result-pass {
  border-left-color: var(--accent-green);
}

.result-warning {
  border-left-color: var(--warning-yellow);
}

.result-error {
  border-left-color: var(--error-red);
}

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

.result-header > div {
  display: flex;
  align-items: center;
  gap: 12px;
}

.result-icon {
  font-size: 1.5rem;
  font-weight: bold;
}

.result-pass .result-icon {
  color: var(--accent-green);
}

.result-warning .result-icon {
  color: var(--warning-yellow);
}

.result-error .result-icon {
  color: var(--error-red);
}

.result-card h3 {
  margin: 0;
  font-size: 1.125rem;
  color: var(--text-primary);
}

.rule-description {
  color: var(--text-secondary);
  margin-bottom: 16px;
  font-size: 0.9375rem;
}

.badge {
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-success {
  background: hsla(152, 38%, 42%, 0.15);
  color: var(--accent-green);
  border: 1px solid hsla(152, 38%, 42%, 0.3);
}

.badge-warning {
  background: hsla(45, 90%, 60%, 0.15);
  color: var(--warning-yellow);
  border: 1px solid hsla(45, 90%, 60%, 0.3);
}

.badge-error {
  background: hsla(0, 70%, 60%, 0.15);
  color: var(--error-red);
  border: 1px solid hsla(0, 70%, 60%, 0.3);
}

.result-item {
  padding: 16px;
  background: var(--bg-dark-elevated);
  border-radius: var(--radius-md);
  margin-top: 12px;
  border: 1px solid var(--border-color);
}

.result-message {
  margin-bottom: 12px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.suggestions {
  margin-top: 12px;
  padding: 14px;
  background: var(--bg-dark);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--primary-blue);
}

.suggestions strong {
  color: var(--primary-blue);
  display: block;
  margin-bottom: 8px;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.suggestions ul {
  margin-top: 8px;
  margin-left: 20px;
}

.suggestions li {
  margin: 8px 0;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Section grouping */
.section-group {
  margin-bottom: 48px;
}

.section-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border-color);
  letter-spacing: -0.01em;
}

.result-header.result-toggle {
  cursor: pointer;
  user-select: none;
  transition: background-color 0.2s ease;
  padding: 4px;
  margin: -4px;
  border-radius: var(--radius-sm);
}

.result-header.result-toggle:hover {
  background-color: rgba(255, 255, 255, 0.02);
}

.result-header.result-toggle > div:first-child {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  flex-wrap: wrap;
}

.toggle-icon {
  font-size: 0.875rem;
  transition: transform 0.2s ease;
  color: var(--text-secondary);
}

.result-summary {
  display: inline-flex;
  gap: 8px;
  font-size: 0.8125rem;
  font-weight: 500;
  margin-left: 8px;
}

.result-summary span {
  padding: 3px 8px;
  border-radius: 4px;
  white-space: nowrap;
}

.summary-success {
  color: var(--accent-green);
  background: rgba(66, 184, 131, 0.15);
}

.summary-error {
  color: var(--error-red);
  background: rgba(239, 68, 68, 0.15);
}

.summary-warning {
  color: var(--warning-yellow);
  background: rgba(251, 191, 36, 0.15);
}

.result-content {
  max-height: 10000px;
  overflow: hidden;
  transition: max-height 0.4s ease, opacity 0.3s ease, margin-top 0.3s ease;
  opacity: 1;
  margin-top: 16px;
}

.result-content.collapsed {
  max-height: 0;
  opacity: 0;
  margin-top: 0;
}

.section-description {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  margin-bottom: 24px;
  margin-top: 12px;
}

/* Responsive */
@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }

  .score-header {
    flex-direction: column;
    gap: 20px;
  }

  .score {
    font-size: 2rem;
    padding: 16px 24px;
  }

  .score-stats {
    flex-direction: column;
  }

  .template-meta {
    flex-direction: column;
    gap: 12px;
  }
}