/**
 * Sage Design System - Base
 * Design tokens, reset, and shared component styles.
 * Imported by all pages.
 */

/* ============================================
   DESIGN TOKENS
   ============================================ */
:root {
  /* Core palette */
  --sage-canvas: #F8F7F4;
  --sage-ink: #1A1A24;
  --sage-botanical: #4A7C59;
  --sage-botanical-dark: #3D6A4B;
  --sage-botanical-light: #E8F0EB;

  /* Semantic */
  --sage-bg-primary: var(--sage-canvas);
  --sage-text-primary: var(--sage-ink);
  --sage-text-secondary: #6B7280;
  --sage-text-muted: #9CA3AF;
  --sage-accent: var(--sage-botanical);
  --sage-accent-hover: var(--sage-botanical-dark);
  --sage-surface: #FFFFFF;
  --sage-border: #E5E5E0;
  --sage-border-subtle: #e2e8f0;

  /* Status */
  --sage-success: #10B981;
  --sage-error: #DC2626;
  --sage-warning: #F59E0B;

  /* Gray scale */
  --sage-gray-50: #f8fafc;
  --sage-gray-100: #f1f5f9;
  --sage-gray-200: #e5e7eb;
  --sage-gray-300: #d1d5db;
  --sage-gray-400: #9ca3af;
  --sage-gray-500: #6b7280;
  --sage-gray-600: #475569;
  --sage-gray-700: #374151;
  --sage-gray-800: #1e293b;

  /* Platform */
  --sage-platform-linkedin: #0a66c2;
  --sage-platform-twitter: #e1e8ed;

  /* Warnings */
  --sage-warning-light: #fef3c7;

  /* Typography */
  --sage-font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --sage-font-base: 14px;

  /* Radius */
  --sage-radius-sm: 6px;
  --sage-radius-md: 8px;
  --sage-radius-lg: 12px;
}

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

body {
  font-family: var(--sage-font-primary);
  background: var(--sage-bg-primary);
  margin: 0;
  padding: 0;
  color: var(--sage-text-primary);
  line-height: 1.6;
}

/* ============================================
   NAV COMPONENT
   Shared across landing, pricing, and other pages.
   ============================================ */
.nav {
  background: var(--sage-surface);
  border-bottom: 1px solid var(--sage-border);
  padding: 1rem 2rem;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--sage-ink);
  font-weight: 600;
  font-size: 1.25rem;
}

.nav-brand img {
  width: 32px;
  height: 32px;
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  text-decoration: none;
  color: var(--sage-text-secondary);
  font-weight: 500;
  transition: color 0.2s;
}

.nav-link:hover {
  color: var(--sage-accent);
}

.nav-link.active {
  color: var(--sage-accent);
  font-weight: 600;
}

/* ============================================
   SHARED COMPONENTS
   ============================================ */

/* Loader / spinner */
@keyframes spin {
  to { transform: rotate(360deg); }
}

.loader {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 1s ease-in-out infinite;
}

/* Bottom CTA section (shared between landing and pricing) */
.bottom-cta {
  text-align: center;
  padding: 4rem 2rem;
  max-width: 600px;
  margin: 0 auto;
}

.bottom-cta h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--sage-ink);
  margin-bottom: 0.75rem;
}

.bottom-cta p {
  color: var(--sage-text-secondary);
  font-size: 1.1rem;
  margin-bottom: 2rem;
}

/* Muted helper text */
.text-secondary {
  color: var(--sage-text-secondary);
}

.text-muted {
  color: var(--sage-text-muted);
}

/* ============================================
   RESPONSIVE - NAV
   ============================================ */
@media (max-width: 768px) {
  .nav-links {
    gap: 1rem;
  }

  .nav-link {
    font-size: 0.875rem;
  }
}

@media (max-width: 480px) {
  .nav {
    padding: 1rem;
  }

  .nav-brand {
    font-size: 1rem;
  }

  .nav-brand img {
    width: 24px;
    height: 24px;
  }
}