/* =========================================
   ENVELIA - Controlled Lightness
   ========================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Sentient:opsz,wght@12..72,400;12..72,600&display=swap');

:root {
  /* Light, sophisticated palette */
  --bg-primary: #FDFCFA;           /* Warm off-white */
  --bg-card: #FFFFFF;               /* Pure white for cards */
  --bg-accent: #F7F5F2;             /* Subtle warm accent */
  
  /* Text colors */
  --text-primary: #1A1A1A;          /* Almost black, softer than pure black */
  --text-secondary: #525252;        /* Medium gray */
  --text-muted: #737373;            /* Light gray */
  
  /* Accent colors - sophisticated, not playful */
  --accent-primary: #2D5F63;        /* Deep teal - authoritative */
  --accent-secondary: #3D7A7F;      /* Lighter teal for hover */
  --accent-warm: #D4A574;           /* Warm gold accent */
  
  /* Borders and dividers */
  --border-light: rgba(0, 0, 0, 0.06);
  --border-medium: rgba(0, 0, 0, 0.12);
  
  /* Shadows - very subtle */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.08);
  
  /* Typography */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-serif: 'Sentient', 'Georgia', serif;
  
  /* Spacing scale (more generous) */
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 40px;
  --space-xl: 64px;
  --space-2xl: 96px;
}

/* =========================================
   BASE STYLES
   ========================================= */

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

html, body {
  height: 100%;
}

body {
  font-family: var(--font-serif);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  font-size: 18px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* =========================================
   TYPOGRAPHY
   ========================================= */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 600;
  line-height: 1.2;
  color: var(--text-primary);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-md);
}

h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
  margin: 0 0 var(--space-md);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.15rem, 2.5vw, 1.35rem);
  margin: 0 0 var(--space-sm);
  font-weight: 600;
}

p {
  margin: 0 0 var(--space-md);
}

p:last-child {
  margin-bottom: 0;
}

p.lead {
  font-size: clamp(1.1rem, 2.2vw, 1.25rem);
  line-height: 1.65;
  color: var(--text-secondary);
  font-family: var(--font-serif);
}

.muted {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.7;
}

.eyebrow {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-primary);
  margin: 0 0 var(--space-sm);
}

a {
  color: var(--accent-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

strong {
  font-weight: 600;
  color: var(--text-primary);
}

em {
  font-style: italic;
  color: var(--text-secondary);
}

/* =========================================
   LAYOUT
   ========================================= */

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: var(--space-md);
}

@media (min-width: 768px) {
  .container {
    padding: var(--space-lg);
  }
}

/* =========================================
   HEADER / HERO
   ========================================= */

header {
  padding: var(--space-xl) 0 var(--space-lg);
}

.section-dark {
  background: linear-gradient(135deg, #1A2A2E 0%, #2D3E42 100%);
  color: #FFFFFF;
  border-radius: 24px;
  padding: var(--space-xl) var(--space-lg);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.section-dark::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 20%, rgba(61, 122, 127, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(212, 165, 116, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.section-dark > * {
  position: relative;
  z-index: 1;
}

.section-dark .eyebrow {
  color: rgba(255, 255, 255, 0.7);
}

.section-dark h1 {
  color: #FFFFFF;
}

.section-dark p.lead {
  color: rgba(255, 255, 255, 0.9);
}

/* =========================================
   SECTIONS
   ========================================= */

section {
  margin-bottom: var(--space-2xl);
}

.spaced {
  margin-top: var(--space-2xl);
}

.section-sand {
  background: var(--bg-accent);
  border: 1px solid var(--border-light);
  border-radius: 20px;
  padding: var(--space-xl) var(--space-lg);
}

/* =========================================
   CARDS
   ========================================= */

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  padding: var(--space-lg);
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border-medium);
  transform: translateY(-2px);
}

.card h3 {
  color: var(--text-primary);
  line-height: 1.3;
}

.card .muted {
  margin-bottom: var(--space-sm);
}

.card .muted:last-of-type {
  margin-bottom: var(--space-md);
}

.card a {
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.card a:hover {
  gap: 10px;
}

/* =========================================
   GRID
   ========================================= */

.grid {
  display: grid;
  gap: var(--space-lg);
}

.features {
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

@media (min-width: 640px) {
  .features {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
  }
}

/* =========================================
   BUTTONS & CTAs
   ========================================= */

.cta {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-top: var(--space-lg);
}

.btn {
  appearance: none;
  cursor: pointer;
  border: 2px solid transparent;
  border-radius: 12px;
  padding: 14px 28px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.25s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent-primary);
  color: #FFFFFF;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background: var(--accent-secondary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: #FFFFFF;
}

.btn-outline {
  border-color: var(--border-medium);
  color: var(--text-primary);
  background: transparent;
}

.btn-outline:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  background: rgba(45, 95, 99, 0.04);
}

.section-dark .btn-primary {
  background: #FFFFFF;
  color: var(--accent-primary);
}

.section-dark .btn-primary:hover {
  background: rgba(255, 255, 255, 0.95);
  color: var(--accent-secondary);
}

.section-dark .btn-outline {
  border-color: rgba(255, 255, 255, 0.3);
  color: #FFFFFF;
}

.section-dark .btn-outline:hover {
  border-color: rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.1);
  color: #FFFFFF;
}

/* =========================================
   FOOTER
   ========================================= */

footer {
  border-top: 1px solid var(--border-light);
  margin-top: var(--space-2xl);
  padding: var(--space-xl) 0 var(--space-lg);
  color: var(--text-muted);
  font-size: 0.95rem;
}

footer a {
  color: var(--text-muted);
  transition: color 0.2s ease;
}

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

footer nav {
  margin-top: var(--space-sm);
}

/* =========================================
   UTILITIES
   ========================================= */

.visually-hidden {
  position: absolute !important;
  height: 1px;
  width: 1px;
  overflow: hidden;
  clip: rect(1px, 1px, 1px, 1px);
  white-space: nowrap;
}

:target {
  scroll-margin-top: 100px;
}

/* =========================================
   RESPONSIVE
   ========================================= */

@media (max-width: 640px) {
  .section-dark,
  .section-sand {
    padding: var(--space-lg) var(--space-md);
  }
  
  .card {
    padding: var(--space-md);
  }
  
  .cta {
    flex-direction: column;
    align-items: stretch;
  }
  
  .btn {
    width: 100%;
  }
}

@media (min-width: 768px) {
  body {
    font-size: 19px;
  }
}

/* =========================================
   PRINT STYLES
   ========================================= */

@media print {
  body {
    background: white;
    color: black;
  }
  
  .section-dark {
    background: white;
    color: black;
    border: 2px solid black;
  }
  
  .btn {
    border: 2px solid black;
  }
}