/**
 * Pyvorin Brand Stylesheet
 * Colours: Cobalt Blue #0D47FF, Deep Navy #071633, White #FFFFFF, Silver Gray #E6E8EB
 * Typography: Inter
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  --pv-cobalt: #0D47FF;
  --pv-navy: #071633;
  --pv-white: #FFFFFF;
  --pv-silver: #E6E8EB;
  --pv-cobalt-light: #E8EDFF;
  --pv-cobalt-dark: #0A38CC;
  --pv-navy-light: #1A2E4D;
  --pv-text: #334155;
  --pv-text-muted: #64748B;
  --pv-border: #E2E8F0;
  --pv-success: #059669;
  --pv-warning: #D97706;
  --pv-danger: #DC2626;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--pv-text);
  background: #F8FAFC;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.pv-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.pv-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
  transition: all 0.2s ease;
  border: none;
  cursor: pointer;
}

.pv-btn-primary {
  background: var(--pv-cobalt);
  color: var(--pv-white);
}
.pv-btn-primary:hover {
  background: var(--pv-cobalt-dark);
}

.pv-btn-secondary {
  background: var(--pv-white);
  color: var(--pv-navy);
  border: 1px solid var(--pv-border);
}
.pv-btn-secondary:hover {
  background: var(--pv-silver);
}

/* Secondary button on dark backgrounds — transparent with white text */
.pv-btn-secondary.text-white {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.2);
}
.pv-btn-secondary.text-white:hover {
  background: rgba(255, 255, 255, 0.1);
}

.pv-btn-navy {
  background: var(--pv-navy);
  color: var(--pv-white);
}
.pv-btn-navy:hover {
  background: var(--pv-navy-light);
}

.pv-gradient-hero {
  background: linear-gradient(135deg, var(--pv-navy) 0%, var(--pv-cobalt-dark) 100%);
}

.pv-card {
  background: var(--pv-white);
  border-radius: 0.75rem;
  border: 1px solid var(--pv-border);
  padding: 1.5rem;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.pv-card:hover {
  box-shadow: 0 10px 25px -5px rgba(7, 22, 51, 0.1);
  transform: translateY(-2px);
}

.pv-section {
  padding: 5rem 0;
}

.pv-section-alt {
  background: var(--pv-white);
}

.pv-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pv-tag-proven { background: #D1FAE5; color: #065F46; }
.pv-tag-experimental { background: #FEF3C7; color: #92400E; }
.pv-tag-planned { background: #DBEAFE; color: #1E40AF; }
.pv-tag-limitation { background: #FEE2E2; color: #991B1B; }

.pv-nav-link {
  color: var(--pv-text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.875rem;
  transition: color 0.2s;
}
.pv-nav-link:hover, .pv-nav-link.active {
  color: var(--pv-cobalt);
}

/* Accessibility */
.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;
}

/* Focus styles */
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--pv-cobalt);
  outline-offset: 2px;
}

/* Code blocks */
pre, code {
  font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
}
pre {
  background: var(--pv-navy);
  color: var(--pv-silver);
  padding: 1rem;
  border-radius: 0.5rem;
  overflow-x: auto;
}
code {
  background: var(--pv-silver);
  padding: 0.125rem 0.375rem;
  border-radius: 0.25rem;
  font-size: 0.875em;
}
pre code { background: transparent; padding: 0; }

/* Test mode banner */
.test-mode-banner {
  background: repeating-linear-gradient(
    45deg,
    #FEF3C7,
    #FEF3C7 10px,
    #FDE68A 10px,
    #FDE68A 20px
  );
  color: #92400E;
  text-align: center;
  padding: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
}