/*
  US Green Energy Review
  STYLE SHEET
*/

:root {
  --primary-color: #0A2E36; /* Deep Teal */
  --secondary-color: #277A65; /* Muted Green */
  --accent-color: #4CAF50; /* Brighter Green */
  --background-color: #F8F9FA;
  --surface-color: #FFFFFF;
  --text-primary: #212529;
  --text-secondary: #495057;
  --text-on-dark: #FFFFFF;
  --border-color: #DEE2E6;
  --shadow-color: rgba(0, 0, 0, 0.08);

  --font-family-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-family-serif: 'Lora', serif;
  
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 48px;
  --spacing-xxxl: 64px;
  --section-padding: clamp(4rem, 8vw, 6rem);
  --container-width: 1200px;
  --border-radius: 8px;
  --transition-speed: 0.3s ease;
}

/* 1. RESET AND BASE STYLES */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-serif);
  color: var(--primary-color);
  line-height: 1.2;
  margin-bottom: var(--spacing-lg);
  font-weight: 600;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
p { margin-bottom: var(--spacing-md); color: var(--text-secondary); max-width: 75ch; }
a { color: var(--secondary-color); text-decoration: none; transition: var(--transition-speed); }
a:hover { color: var(--accent-color); text-decoration: underline; }
ul, ol { list-style-position: inside; }
img { max-width: 100%; height: auto; display: block; }

/* 2. LAYOUT */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
}

.section {
  padding: var(--section-padding) 0;
}

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

.text-center { text-align: center; }
.text-center p { margin-left: auto; margin-right: auto; }

/* 3. HEADER & NAVIGATION */
.main-header {
  background-color: var(--surface-color);
  padding: var(--spacing-md) 0;
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: 0 2px 10px var(--shadow-color);
  transition: all var(--transition-speed);
}

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

.logo {
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--primary-color);
  font-family: var(--font-family-serif);
}
.logo:hover { text-decoration: none; }

.nav-links {
  display: flex;
  gap: var(--spacing-xl);
  list-style: none;
}

.nav-links a {
  font-weight: 500;
  color: var(--text-primary);
  padding: var(--spacing-sm) 0;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-color);
  transition: var(--transition-speed);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-links a.active {
  color: var(--primary-color);
  font-weight: 600;
}

.mobile-nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1001;
}

.mobile-nav-toggle .icon-hamburger,
.mobile-nav-toggle .icon-close {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--primary-color);
  position: relative;
  transition: all 0.2s ease-in-out;
}

.mobile-nav-toggle .icon-hamburger::before,
.mobile-nav-toggle .icon-hamburger::after {
  content: '';
  position: absolute;
  left: 0;
  width: 24px;
  height: 2px;
  background-color: var(--primary-color);
  transition: all 0.2s ease-in-out;
}

.mobile-nav-toggle .icon-hamburger::before { top: -8px; }
.mobile-nav-toggle .icon-hamburger::after { top: 8px; }

.mobile-nav-toggle .icon-close { display: none; }

/* 4. HERO SECTION */
.hero {
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-size: cover;
  background-position: center;
  color: var(--text-on-dark);
  text-align: center;
  padding: var(--section-padding) var(--spacing-xl);
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(rgba(10, 46, 54, 0.8), rgba(10, 46, 54, 0.6));
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero h1 {
  color: var(--text-on-dark);
  text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
  margin-bottom: var(--spacing-md);
}

.hero p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xl);
}

/* 5. BUTTONS */
.btn {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-xl);
  font-weight: 600;
  border-radius: var(--border-radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition-speed);
  font-size: 1rem;
  text-align: center;
}

.btn-primary {
  background-color: var(--accent-color);
  color: var(--text-on-dark);
  border-color: var(--accent-color);
}
.btn-primary:hover {
  background-color: #45a049;
  border-color: #45a049;
  transform: translateY(-2px);
  text-decoration: none;
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-primary);
  border-color: var(--border-color);
}
.btn-secondary:hover {
  background-color: var(--surface-color);
  border-color: var(--secondary-color);
  color: var(--secondary-color);
  text-decoration: none;
}

/* 6. CARDS (Articles, Topics, etc.) */
.grid {
  display: grid;
  gap: var(--spacing-xl);
}
.grid-cols-3 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(auto-fit, minmax(400px, 1fr)); }

.article-card, .topic-card {
  background-color: var(--surface-color);
  border-radius: var(--border-radius);
  box-shadow: 0 4px 12px var(--shadow-color);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-speed);
}
.article-card:hover, .topic-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.card-image {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

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

.card-content h3 {
  font-size: 1.3rem;
  margin-bottom: var(--spacing-sm);
}

.card-category {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-color);
  margin-bottom: var(--spacing-md);
  text-transform: uppercase;
}

.card-excerpt {
  flex-grow: 1;
  margin-bottom: var(--spacing-lg);
}

.card-footer {
  margin-top: auto;
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--border-color);
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* 7. ABOUT PAGE & CONTENT SECTIONS */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xxxl);
  align-items: center;
}
.about-image {
  border-radius: var(--border-radius);
  object-fit: cover;
  box-shadow: 0 10px 30px var(--shadow-color);
  aspect-ratio: 4/3;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
}
.team-member {
  text-align: center;
  background: var(--surface-color);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius);
  box-shadow: 0 4px 12px var(--shadow-color);
}
.team-member img {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto var(--spacing-lg);
  border: 4px solid var(--surface-color);
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}
.team-member h4 { font-size: 1.25rem; margin-bottom: var(--spacing-sm); }
.team-member p { font-size: 0.9rem; margin-bottom: 0; font-style: italic; }

/* 8. CONTACT PAGE */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xxxl);
}
.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}
.contact-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}
.contact-item svg {
  width: 24px;
  height: 24px;
  color: var(--accent-color);
  flex-shrink: 0;
}
.contact-item-content h4 { font-size: 1.2rem; margin-bottom: var(--spacing-sm); }
.contact-item-content p, .contact-item-content a { color: var(--text-secondary); font-size: 1rem; margin-bottom: 0; }
a[href^="tel:"], a[href^="mailto:"] { color: inherit; text-decoration: none; }
a[href^="tel:"]:hover, a[href^="mailto:"]:hover { color: var(--accent-color); text-decoration: underline; }

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}
.form-group {
  display: flex;
  flex-direction: column;
}
.form-group label {
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
}
.form-group input, .form-group textarea {
  padding: var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-family: var(--font-family-sans);
  font-size: 1rem;
  transition: border-color var(--transition-speed);
}
.form-group input:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--secondary-color);
  box-shadow: 0 0 0 3px rgba(39, 122, 101, 0.2);
}
.form-group textarea { resize: vertical; min-height: 150px; }
.form-group button { align-self: flex-start; }

.map-container {
  width: 100%;
  height: 450px;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: 0 4px 20px var(--shadow-color);
  margin-top: var(--spacing-xxxl);
}
.map-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* 9. FOOTER */
.main-footer {
  background-color: var(--primary-color);
  color: var(--text-on-dark);
  padding: var(--section-padding) 0 0 0;
}
.footer-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xxl);
  padding-bottom: var(--section-padding);
}
.footer-col h4 {
  color: var(--text-on-dark);
  margin-bottom: var(--spacing-lg);
  font-family: var(--font-family-sans);
  font-weight: 600;
}
.footer-col p, .footer-col a {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--spacing-sm);
}
.footer-col a:hover { color: var(--accent-color); }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: var(--spacing-sm); }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--spacing-xl) 0;
  text-align: center;
}
.footer-bottom p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
  margin: 0;
}

.disclaimer-section {
  background-color: rgba(0, 0, 0, 0.1);
  color: inherit;
  padding: var(--spacing-lg) var(--spacing-xl);
  margin: var(--spacing-xxl) auto var(--spacing-xxl) auto;
  border-radius: var(--border-radius);
  text-align: left;
  font-size: 0.85rem;
  line-height: 1.6;
  border-left: 4px solid var(--accent-color);
  max-width: var(--container-width);
}
.disclaimer-section strong {
  display: block;
  margin-bottom: var(--spacing-sm);
  color: var(--text-on-dark);
}
.main-footer .disclaimer-section p {
  font-size: inherit;
  margin-bottom: 0;
}

/* 10. COOKIE BANNER */
#cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: rgba(10, 46, 54, 0.95);
  color: var(--text-on-dark);
  padding: var(--spacing-lg);
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-lg);
  z-index: 9999;
  box-shadow: 0 -4px 15px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(5px);
}
#cookie-banner p { color: rgba(255, 255, 255, 0.9); margin-bottom: 0; }
#cookie-banner-buttons { display: flex; gap: var(--spacing-md); flex-shrink: 0; }
#cookie-banner button {
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: 0.9rem;
}
#cookie-banner .btn-decline {
  background-color: transparent;
  color: var(--text-on-dark);
  border: 1px solid rgba(255,255,255,0.4);
}
#cookie-banner .btn-decline:hover {
  background-color: rgba(255,255,255,0.1);
}

/* 11. PRIVACY & THANK YOU PAGE */
.privacy-content h2 { margin-top: var(--spacing-xxxl); }
.privacy-content h2:first-of-type { margin-top: 0; }

.thank-you-section {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 20px;
}
.thank-you-icon {
  width: 80px;
  height: 80px;
  background-color: var(--accent-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-xl);
}
.thank-you-icon svg {
  width: 40px;
  height: 40px;
  color: white;
}
.thank-you-section h1 { font-size: clamp(2rem, 5vw, 3.5rem); margin-bottom: var(--spacing-lg); }
.thank-you-section p { font-size: 1.2rem; color: var(--text-secondary); max-width: 600px; margin-bottom: var(--spacing-xl); }

/* 12. RESPONSIVE DESIGN */
@media (max-width: 1024px) {
  .about-grid, .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-xxl);
  }
}

@media (max-width: 768px) {
  h1 { font-size: 2.25rem; }
  h2 { font-size: 1.8rem; }
  .section { padding: var(--spacing-xxxl) 0; }

  .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    width: 70%;
    height: 100vh;
    background-color: var(--primary-color);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-xxl);
    transform: translateX(100%);
    transition: transform var(--transition-speed);
  }
  .nav-links.active {
    transform: translateX(0);
  }
  .nav-links a {
    color: var(--text-on-dark);
    font-size: 1.2rem;
  }
  .nav-links a:hover, .nav-links a.active {
    color: var(--accent-color);
  }
  
  .mobile-nav-toggle {
    display: block;
  }

  .main-header.nav-open .mobile-nav-toggle .icon-hamburger {
    background-color: transparent;
  }
  .main-header.nav-open .mobile-nav-toggle .icon-hamburger::before {
    transform: rotate(45deg);
    top: 0;
    background-color: var(--accent-color);
  }
  .main-header.nav-open .mobile-nav-toggle .icon-hamburger::after {
    transform: rotate(-45deg);
    top: 0;
    background-color: var(--accent-color);
  }

  #cookie-banner {
    flex-direction: column;
    text-align: center;
  }
  .map-container {
    height: 350px;
  }
}

/* TOPICS PAGE SPECIFIC */
.topics-section h3 {
    border-bottom: 2px solid var(--border-color);
    padding-bottom: var(--spacing-md);
    margin-top: var(--spacing-xxl);
    margin-bottom: var(--spacing-lg);
}
.topics-section:first-of-type h3 {
    margin-top: 0;
}
.topic-list {
    list-style: none;
    padding-left: 0;
}
.topic-list li {
    margin-bottom: var(--spacing-md);
}
.topic-list a {
    font-weight: 500;
}

/* INTERVIEWS PAGE SPECIFIC */
.interview-card {
    background-color: var(--surface-color);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 12px var(--shadow-color);
    display: flex;
    flex-direction: column;
    transition: all var(--transition-speed);
}
.interview-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}
.interview-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
}
.interview-header img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
}
.interview-meta h4 {
    font-size: 1.2rem;
    margin-bottom: 0;
}
.interview-meta p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0;
    font-style: italic;
}
.interview-quote {
    padding: 0 var(--spacing-xl) var(--spacing-xl);
    font-family: var(--font-family-serif);
    font-style: italic;
    font-size: 1.1rem;
    border-left: 3px solid var(--accent-color);
    margin: 0 var(--spacing-xl) var(--spacing-xl);
}
.interview-link {
    margin-top: auto;
    padding: 0 var(--spacing-xl) var(--spacing-xl)
}