/* ============================================
   PRYSMIS - Institutional Knowledge Portal
   Color System:
   - Primary: #2F4F4F (Deep Forest Green)
   - Secondary: #F5F5DC (Warm Beige)
   - Accent 1: #B8860B (Soft Gold)
   - Accent 2: #48D1CC (Muted Teal)
   ============================================ */

:root {
  --color-primary: #2F4F4F;
  --color-secondary: #F5F5DC;
  --color-accent-gold: #B8860B;
  --color-accent-teal: #48D1CC;
  --color-dark-grey: #3a3a3a;
  --color-light-grey: #e8e8e8;
  --color-text: #2c2c2c;
  
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 48px;
  --spacing-xl: 80px;
  --spacing-xxl: 120px;
  
  --font-sans: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-serif: 'Georgia', 'Merriweather', serif;
  
  --border-radius: 8px;
  --transition: 0.35s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-serif);
  background-color: var(--color-secondary);
  color: var(--color-text);
  line-height: 1.6;
  font-size: 16px;
}

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

h1 {
  font-family: var(--font-sans);
  font-size: 3.5rem;
  font-weight: 600;
  color: var(--color-accent-gold);
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
}

h2 {
  font-family: var(--font-sans);
  font-size: 2.2rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
  line-height: 1.3;
}

h3 {
  font-family: var(--font-sans);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--color-accent-teal);
  margin-bottom: var(--spacing-sm);
}

h4 {
  font-family: var(--font-sans);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

p {
  margin-bottom: var(--spacing-md);
  font-size: 1rem;
  line-height: 1.8;
}

a {
  color: var(--color-accent-teal);
  text-decoration: none;
  transition: color var(--transition);
}

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

/* ============================================
   LAYOUT & CONTAINERS
   ============================================ */

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-full {
  width: 100%;
  margin: 0;
  padding: 0;
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

header {
  background-color: var(--color-primary);
  padding: var(--spacing-md) 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: var(--font-sans);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-accent-gold);
  text-decoration: none;
  transition: color var(--transition);
}

.logo:hover {
  color: var(--color-accent-teal);
}

nav ul {
  list-style: none;
  display: flex;
  gap: var(--spacing-lg);
}

nav a {
  color: var(--color-secondary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color var(--transition);
  position: relative;
}

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

nav a.active::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--color-accent-teal);
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
  width: 100%;
  min-height: 600px;
  background: linear-gradient(135deg, rgba(47, 79, 79, 0.75) 0%, rgba(47, 79, 79, 0.65) 100%),
              url('/images/hero-bg.jpg') center/cover;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--color-secondary);
  padding: var(--spacing-xxl) var(--spacing-md);
  margin-bottom: var(--spacing-xxl);
}

.hero-content {
  max-width: 800px;
}

.hero h1 {
  color: var(--color-accent-gold);
  font-size: 4rem;
  margin-bottom: var(--spacing-md);
}

.hero p {
  color: var(--color-secondary);
  font-size: 1.2rem;
  line-height: 1.8;
  margin-bottom: var(--spacing-lg);
}

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

section {
  padding: var(--spacing-xxl) 0;
  margin-bottom: var(--spacing-xl);
}

section.alt-bg {
  background-color: var(--color-primary);
  color: var(--color-secondary);
  margin-left: -100vw;
  margin-right: -100vw;
  padding-left: 100vw;
  padding-right: 100vw;
}

section.alt-bg h2,
section.alt-bg h3,
section.alt-bg h4 {
  color: var(--color-accent-gold);
}

section.alt-bg p {
  color: var(--color-secondary);
}

/* ============================================
   CONTENT LAYOUTS
   ============================================ */

.two-column {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
  margin-bottom: var(--spacing-xxl);
}

.two-column-reverse {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
  margin-bottom: var(--spacing-xxl);
}

.two-column-reverse .text-content {
  order: 2;
}

.two-column-reverse .image-content {
  order: 1;
}

.image-content {
  overflow: hidden;
  border-radius: var(--border-radius);
}

.image-content img {
  width: 100%;
  height: auto;
  display: block;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
  transition: transform var(--transition);
}

.image-content:hover img {
  transform: scale(1.03);
}

.text-content h2 {
  margin-bottom: var(--spacing-md);
}

/* ============================================
   CARDS & GRID
   ============================================ */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xxl);
}

.card {
  background: white;
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  transition: all var(--transition);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.15);
}

.card h3 {
  margin-bottom: var(--spacing-sm);
}

.card p {
  color: #555;
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  background-color: var(--color-accent-gold);
  color: white;
  text-decoration: none;
  border-radius: var(--border-radius);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition);
  border: 2px solid var(--color-accent-gold);
  cursor: pointer;
}

.btn:hover {
  background-color: transparent;
  color: var(--color-accent-gold);
}

.btn-secondary {
  background-color: var(--color-accent-teal);
  border-color: var(--color-accent-teal);
  color: white;
}

.btn-secondary:hover {
  color: var(--color-accent-teal);
}

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

footer {
  background-color: var(--color-primary);
  color: var(--color-secondary);
  padding: var(--spacing-xxl) 0;
  margin-top: var(--spacing-xxl);
  border-top: 2px solid var(--color-accent-gold);
}

footer .container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

footer h4 {
  color: var(--color-accent-gold);
  margin-bottom: var(--spacing-md);
}

footer ul {
  list-style: none;
}

footer li {
  margin-bottom: var(--spacing-sm);
}

footer a {
  color: var(--color-secondary);
  text-decoration: none;
  transition: color var(--transition);
}

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

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
}

/* ============================================
   BREADCRUMBS
   ============================================ */

.breadcrumb {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  font-size: 0.9rem;
  color: #777;
}

.breadcrumb a {
  color: var(--color-accent-teal);
}

.breadcrumb span {
  color: #999;
}

/* ============================================
   FORMS
   ============================================ */

.form-group {
  margin-bottom: var(--spacing-md);
}

label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
  color: var(--color-primary);
}

input,
textarea,
select {
  width: 100%;
  padding: var(--spacing-sm);
  border: 2px solid var(--color-light-grey);
  border-radius: var(--border-radius);
  font-family: var(--font-serif);
  font-size: 1rem;
  transition: border-color var(--transition);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-accent-teal);
}

textarea {
  resize: vertical;
  min-height: 150px;
}

/* ============================================
   QUOTE BLOCKS
   ============================================ */

.quote-block {
  background-color: #f9f9f9;
  border-left: 5px solid var(--color-accent-gold);
  padding: var(--spacing-md);
  margin: var(--spacing-lg) 0;
  font-style: italic;
  color: #555;
}

/* ============================================
   FAQ SECTION
   ============================================ */

.faq-item {
  margin-bottom: var(--spacing-md);
  border: 1px solid var(--color-light-grey);
  border-radius: var(--border-radius);
  overflow: hidden;
}

.faq-question {
  padding: var(--spacing-md);
  background-color: #f5f5f5;
  cursor: pointer;
  font-weight: 600;
  color: var(--color-primary);
  transition: background-color var(--transition);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-question:hover {
  background-color: #eee;
}

.faq-answer {
  padding: var(--spacing-md);
  display: none;
  background-color: white;
  color: #666;
  line-height: 1.8;
}

.faq-answer.active {
  display: block;
}

.faq-toggle {
  font-size: 1.5rem;
  transition: transform var(--transition);
}

.faq-toggle.active {
  transform: rotate(180deg);
}

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

@media (max-width: 768px) {
  .two-column,
  .two-column-reverse {
    grid-template-columns: 1fr;
  }

  .two-column-reverse .text-content {
    order: unset;
  }

  .two-column-reverse .image-content {
    order: unset;
  }

  nav ul {
    gap: var(--spacing-md);
  }

  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 1.8rem;
  }

  h3 {
    font-size: 1.2rem;
  }

  .hero {
    min-height: 400px;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

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

@media (max-width: 480px) {
  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  nav ul {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .hero h1 {
    font-size: 1.8rem;
  }

  .hero p {
    font-size: 1rem;
  }
}