/* ===== DESIGN TOKENS & COLOR SYSTEM ===== */
:root {
  /* Primary Colors */
  --color-primary: #1F2C3A; /* Deep Midnight Blue */
  --color-secondary: #957DAD; /* Muted Plum */
  
  /* Accent Colors */
  --color-accent-lavender: #E0BBE4; /* Soft Lavender */
  --color-accent-aqua: #D2F7EE; /* Pale Aqua */
  --color-accent-mint: #B8F2E6; /* Light Mint */
  
  /* Neutral Colors */
  --color-neutral-light: #EBEBEB; /* Light Gray */
  --color-neutral-medium: #6C7A89; /* Medium Gray */
  --color-white: #FFFFFF;
  
  /* Spacing */
  --spacing-xs: 20px;
  --spacing-sm: 40px;
  --spacing-md: 80px;
  --spacing-lg: 120px;
  
  /* Typography */
  --font-heading: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  /* Transitions */
  --transition-smooth: all 0.3s ease-in-out;
}

/* ===== GLOBAL RESET ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--color-primary);
  background-color: var(--color-white);
  line-height: 1.6;
  font-size: 16px;
  letter-spacing: 0.5px;
}

/* ===== TYPOGRAPHY ===== */
h1 {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 700;
  letter-spacing: -1px;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary);
  text-align: left;
}

h2 {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--spacing-xs);
  color: var(--color-primary);
}

h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 15px;
  color: var(--color-primary);
}

p {
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 20px;
  color: var(--color-primary);
}

ul, ol {
  margin-left: 30px;
  margin-bottom: 20px;
}

li {
  margin-bottom: 10px;
  line-height: 1.8;
  color: var(--color-primary);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: var(--transition-smooth);
  border-bottom: 2px solid transparent;
}

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

/* ===== HEADER & NAVIGATION ===== */
header {
  background-color: var(--color-primary);
  padding: 25px 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.header-container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-logo {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 1px;
  text-transform: uppercase;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 35px;
  margin: 0;
}

nav a {
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 2px solid transparent;
}

nav a:hover,
nav a.active {
  border-bottom-color: var(--color-accent-mint);
  color: var(--color-accent-mint);
}

/* ===== FOOTER ===== */
footer {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-md) 0;
  margin-top: var(--spacing-lg);
}

.footer-container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 40px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 60px;
}

.footer-column h3 {
  color: var(--color-white);
  margin-bottom: var(--spacing-xs);
}

.footer-column ul {
  list-style: none;
  margin: 0;
}

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

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-xs);
  margin-top: var(--spacing-xs);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  font-size: 0.9rem;
  color: var(--color-neutral-light);
}

/* ===== MAIN CONTAINER & SECTIONS ===== */
.main-container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 40px;
}

section {
  padding: var(--spacing-md) 0;
}

section:nth-child(even) {
  background-color: var(--color-neutral-light);
  margin: 0 -40px;
  padding: var(--spacing-md) 40px;
}

section.accent-aqua {
  background-color: var(--color-accent-aqua);
  margin: 0 -40px;
  padding: var(--spacing-md) 40px;
}

section.accent-lavender {
  background-color: var(--color-accent-lavender);
  margin: 0 -40px;
  padding: var(--spacing-md) 40px;
}

/* ===== HERO SECTION ===== */
.hero {
  padding: var(--spacing-lg) 0;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: var(--color-white);
}

.hero h1 {
  color: var(--color-white);
  margin-bottom: var(--spacing-xs);
}

.hero p {
  color: var(--color-accent-mint);
  font-size: 1.1rem;
  max-width: 800px;
}

/* ===== CONTENT BLOCKS ===== */
.content-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.content-block.reverse {
  grid-template-columns: 1fr 1fr;
  direction: rtl;
}

.content-block.reverse > * {
  direction: ltr;
}

.content-text {
  padding: 20px;
}

.content-image {
  background-color: var(--color-neutral-light);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.content-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ===== CARD GRID ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: var(--spacing-xs);
}

.card {
  background-color: var(--color-white);
  border: 1px solid var(--color-neutral-light);
  border-radius: 4px;
  padding: 40px;
  transition: var(--transition-smooth);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.card:hover {
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
  background-color: rgba(224, 187, 228, 0.05);
}

.card h3 {
  margin-bottom: 15px;
}

.card p {
  font-size: 0.95rem;
  color: var(--color-neutral-medium);
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  padding: 14px 36px;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition-smooth);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.btn:hover {
  background-color: var(--color-secondary);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: var(--color-accent-lavender);
  color: var(--color-primary);
}

.btn-secondary:hover {
  background-color: var(--color-secondary);
  color: var(--color-white);
}

/* ===== FORMS ===== */
.form-group {
  margin-bottom: 25px;
}

label {
  display: block;
  font-family: var(--font-heading);
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-primary);
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
}

input, textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--color-neutral-light);
  border-radius: 4px;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-primary);
  transition: var(--transition-smooth);
}

input:focus, textarea:focus {
  outline: none;
  border-color: var(--color-accent-lavender);
  box-shadow: 0 0 0 3px rgba(224, 187, 228, 0.1);
  background-color: rgba(224, 187, 228, 0.05);
}

textarea {
  resize: vertical;
  min-height: 140px;
}

/* ===== LAYOUT UTILITIES ===== */
.text-center {
  text-align: center;
}

.text-balance {
  text-wrap: balance;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .content-block {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 1.8rem;
  }

  nav ul {
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .header-container {
    flex-direction: column;
    gap: 20px;
  }

  nav ul {
    flex-direction: column;
    gap: 15px;
  }

  .main-container {
    padding: 0 20px;
  }

  section:nth-child(even) {
    margin: 0 -20px;
    padding: var(--spacing-md) 20px;
  }

  .card-grid {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  h3 {
    font-size: 1.2rem;
  }

  .footer-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}