/* ============================================
   PARGOLA - CSS DESIGN SYSTEM
   Institutional Research Layout
   Deep Forest Green + Muted Ochre Aesthetic
   ============================================ */

:root {
  /* PRIMARY PALETTE */
  --color-primary: #2E4F4F;        /* Deep Forest Green */
  --color-accent: #C7A008;         /* Muted Ochre */
  --color-secondary: #D9D9D9;      /* Light Stone Grey */
  --color-tertiary: #8C3F3F;       /* Deep Terracotta */
  
  /* NEUTRALS */
  --color-text-primary: #333;      /* Dark Grey */
  --color-text-light: #666;        /* Medium Grey */
  --color-bg-light: #F5F5F5;       /* Light Grey Background */
  --color-border: #EEE;            /* Light Border */
  --color-white: #FFFFFF;
  
  /* SPACING */
  --spacing-base: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 32px;
  --spacing-xl: 48px;
  --spacing-xxl: 80px;
  
  /* TYPOGRAPHY */
  --font-sans: 'Georgia', 'Garamond', serif;
  --font-heading: 'Trebuchet MS', 'Arial', sans-serif;
  --font-mono: 'Courier New', monospace;
  
  /* SIZING */
  --container-width: 1200px;
  --container-max: 1440px;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */

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

html {
  scroll-behavior: smooth;
}

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

/* ============================================
   CONTAINER & LAYOUT
   ============================================ */

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

.container-wide {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

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

h1 {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-primary);
  margin-bottom: var(--spacing-lg);
  text-transform: uppercase;
  letter-spacing: 2px;
  text-align: center;
}

h2 {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
  margin-top: var(--spacing-lg);
  letter-spacing: 1px;
}

h3 {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-light);
  line-height: 1.8;
  max-width: 800px;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.3s ease;
  border-bottom: 2px solid transparent;
}

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

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

header {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-md) 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

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

.header-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-white);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.header-logo img {
  width: 40px;
  height: 40px;
  border-radius: 4px;
}

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

nav a {
  color: var(--color-white);
  font-size: 0.95rem;
  border-bottom: 2px solid transparent;
  transition: all 0.3s ease;
}

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

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

.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, rgba(46, 79, 79, 0.85) 100%);
  color: var(--color-white);
  padding: var(--spacing-xxl) var(--spacing-md);
  position: relative;
  overflow: hidden;
  min-height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('/images/hero-botanical.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.15;
  z-index: 0;
}

.hero .container {
  position: relative;
  z-index: 1;
  text-align: center;
}

.hero h1 {
  color: var(--color-white);
  margin-bottom: var(--spacing-lg);
  font-size: 3.2rem;
}

.hero p {
  color: rgba(255, 255, 255, 0.95);
  font-size: 1.2rem;
  max-width: 700px;
  margin: 0 auto var(--spacing-lg);
}

/* ============================================
   SECTION STYLES
   ============================================ */

section {
  padding: var(--spacing-xxl) var(--spacing-md);
  position: relative;
}

section.light-bg {
  background-color: var(--color-bg-light);
}

section.primary-bg {
  background-color: var(--color-primary);
  color: var(--color-white);
}

section.primary-bg h2,
section.primary-bg h3 {
  color: var(--color-white);
}

section.primary-bg p {
  color: rgba(255, 255, 255, 0.9);
}

section.primary-bg a {
  color: var(--color-accent);
}

/* ============================================
   TWO-COLUMN LAYOUT
   ============================================ */

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

.section-grid.reverse {
  direction: rtl;
}

.section-grid.reverse > * {
  direction: ltr;
}

.grid-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.grid-image {
  position: relative;
  overflow: hidden;
  border-radius: 4px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.grid-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* ============================================
   CARDS & SECTIONS
   ============================================ */

.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  transition: all 0.3s ease;
}

.card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  border-color: var(--color-accent);
}

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

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

.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  background-color: var(--color-accent);
  color: var(--color-primary);
  border: 2px solid var(--color-accent);
  font-family: var(--font-heading);
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.9rem;
}

.btn:hover {
  background-color: transparent;
  color: var(--color-accent);
  box-shadow: 0 4px 12px rgba(199, 160, 8, 0.3);
}

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

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

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

footer {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-xl) var(--spacing-md);
  margin-top: var(--spacing-xxl);
  border-top: 4px solid var(--color-accent);
}

footer .container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}

footer h4 {
  color: var(--color-accent);
  font-family: var(--font-heading);
  font-size: 1.1rem;
  margin-bottom: var(--spacing-sm);
}

footer p,
footer a {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  text-align: center;
  font-size: 0.85rem;
}

.disclaimer {
  background-color: rgba(0, 0, 0, 0.05);
  border-left: 4px solid var(--color-tertiary);
  padding: var(--spacing-md);
  margin: var(--spacing-lg) 0;
  font-size: 0.95rem;
  color: var(--color-text-primary);
}

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

form {
  max-width: 600px;
}

.form-group {
  margin-bottom: var(--spacing-md);
  display: flex;
  flex-direction: column;
}

label {
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-primary);
}

input[type="text"],
input[type="email"],
input[type="tel"],
textarea {
  padding: var(--spacing-sm);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-family: var(--font-sans);
  font-size: 1rem;
  transition: all 0.3s ease;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(199, 160, 8, 0.1);
}

textarea {
  resize: vertical;
  min-height: 120px;
}

/* ============================================
   LIST STYLES
   ============================================ */

ul, ol {
  margin: var(--spacing-md) 0;
  margin-left: var(--spacing-lg);
}

li {
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-light);
  line-height: 1.8;
}

/* ============================================
   FEATURE LIST
   ============================================ */

.feature-list {
  list-style: none;
  margin-left: 0;
}

.feature-list li {
  padding-left: var(--spacing-lg);
  position: relative;
  margin-bottom: var(--spacing-md);
}

.feature-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: bold;
  font-size: 1.2rem;
}

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

.blog-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.blog-card:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.blog-card img {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

.blog-card-content {
  padding: var(--spacing-lg);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.blog-card-title {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.blog-card-meta {
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
}

.blog-card-excerpt {
  flex: 1;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
  line-height: 1.8;
}

.blog-card a {
  align-self: flex-start;
  color: var(--color-accent);
  font-weight: 600;
}

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

@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.75rem;
  }
  
  h3 {
    font-size: 1.4rem;
  }
  
  .section-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  nav ul {
    gap: var(--spacing-md);
    font-size: 0.9rem;
  }
  
  section {
    padding: var(--spacing-xl) var(--spacing-md);
  }
  
  footer .container {
    grid-template-columns: 1fr;
  }
  
  .container {
    padding: 0 var(--spacing-sm);
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.5rem;
    letter-spacing: 1px;
  }
  
  h2 {
    font-size: 1.3rem;
  }
  
  .hero {
    min-height: 400px;
    padding: var(--spacing-xl) var(--spacing-sm);
  }
  
  nav ul {
    gap: var(--spacing-sm);
    font-size: 0.85rem;
  }
  
  .header-logo {
    font-size: 1.2rem;
  }
  
  section {
    padding: var(--spacing-lg) var(--spacing-sm);
  }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.text-center {
  text-align: center;
}

.text-accent {
  color: var(--color-accent);
}

.text-primary {
  color: var(--color-primary);
}

.mt-lg {
  margin-top: var(--spacing-lg);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}

.mt-xl {
  margin-top: var(--spacing-xl);
}

.mb-xl {
  margin-bottom: var(--spacing-xl);
}

.separator {
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), transparent);
  margin: var(--spacing-xl) 0;
}