/* Main CSS for Sustainability & ESG Consulting Template */

:root {
  /* Color palette */
  --primary-color: #388e3c;      /* Deep green */
  --secondary-color: #8bc34a;    /* Light green */
  --accent-color: #f9a825;       /* Golden yellow */
  --neutral-color: #455a64;      /* Blue-grey */
  --light-color: #eceff1;        /* Very light grey */
  
  /* Shades */
  --primary-light: #66bb6a;
  --primary-dark: #2e7d32;
  --secondary-light: #aed581;
  --secondary-dark: #689f38;
  --accent-light: #ffd54f;
  --accent-dark: #f57f17;
  --neutral-light: #78909c;
  --neutral-dark: #263238;
  
  /* Typography */
  --font-primary: 'Roboto', sans-serif;
  --font-secondary: 'Poppins', sans-serif;
  --font-size-base: 16px;
  --line-height-base: 1.5;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 5rem;
  
  /* Border radius */
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 16px;
  --border-radius-xl: 24px;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* Base styles */
html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  font-family: var(--font-primary);
  line-height: var(--line-height-base);
  color: var(--neutral-dark);
  background-color: #ffffff;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-secondary);
  line-height: 1.2;
  margin-top: 0;
  margin-bottom: var(--spacing-sm);
  color: var(--neutral-dark);
  font-weight: 700;
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.75rem;
}

h4 {
  font-size: 1.5rem;
}

h5 {
  font-size: 1.25rem;
}

h6 {
  font-size: 1rem;
}

p {
  margin-top: 0;
  margin-bottom: var(--spacing-md);
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition-fast);
}

a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

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

/* Buttons */
.btn {
  display: inline-block;
  font-weight: 500;
  text-align: center;
  white-space: nowrap;
  vertical-align: middle;
  user-select: none;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius-md);
  transition: var(--transition-normal);
  text-decoration: none;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background-color: var(--primary-color);
  color: #ffffff;
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  color: #ffffff;
  text-decoration: none;
}

.btn-secondary {
  background-color: var(--secondary-color);
  color: #ffffff;
}

.btn-secondary:hover {
  background-color: var(--secondary-dark);
  color: #ffffff;
  text-decoration: none;
}

.btn-accent {
  background-color: var(--accent-color);
  color: #ffffff;
}

.btn-accent:hover {
  background-color: var(--accent-dark);
  color: #ffffff;
  text-decoration: none;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.95);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  padding: var(--spacing-sm) 0;
  transition: var(--transition-normal);
}

.site-header.scrolled {
  padding: 0.5rem 0;
  background-color: rgba(255, 255, 255, 0.98);
}

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

.site-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  margin: 0;
}

.site-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  margin-left: var(--spacing-md);
}

.nav-link {
  color: var(--neutral-dark);
  font-weight: 500;
  position: relative;
  padding: 0.25rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: var(--transition-fast);
}

.nav-link:hover {
  color: var(--primary-color);
  text-decoration: none;
}

.nav-link:hover::after {
  width: 100%;
}

.mobile-nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--neutral-dark);
  cursor: pointer;
}

/* Hero section */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  background-color: var(--light-color);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.4);
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing-md);
  color: #ffffff;
}

/* About section */
.about {
  position: relative;
  background-color: #ffffff;
}

.section-heading {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
}

.about-image {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius-lg);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.about-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.feature-item {
  padding: var(--spacing-md);
  background-color: var(--light-color);
  border-radius: var(--border-radius-md);
  transition: var(--transition-normal);
}

.feature-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
}

.feature-icon {
  font-size: 2rem;
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
}

/* Services section */
.services {
  background-color: var(--light-color);
  position: relative;
}

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

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.service-item {
  background-color: #ffffff;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: var(--transition-normal);
}

.service-item:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.service-image {
  height: 200px;
  overflow: hidden;
}

.service-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-normal);
}

.service-item:hover .service-image img {
  transform: scale(1.05);
}

.service-content {
  padding: var(--spacing-md);
}

.service-price {
  background-color: var(--accent-color);
  color: #ffffff;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: var(--border-radius-sm);
  display: inline-block;
  margin-bottom: var(--spacing-sm);
}

.service-features {
  margin-top: var(--spacing-sm);
  padding-left: var(--spacing-md);
}

.service-features li {
  margin-bottom: 0.5rem;
}

/* Features section */
.features {
  background-color: #ffffff;
  position: relative;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

.feature-card {
  display: flex;
  align-items: flex-start;
  background-color: var(--light-color);
  padding: var(--spacing-md);
  border-radius: var(--border-radius-md);
  transition: var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
}

.feature-card-icon {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-right: var(--spacing-md);
}

.feature-card-content {
  flex: 1;
}

/* Price plan section */
.price-plan {
  background-color: var(--light-color);
  position: relative;
}

.price-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.price-card {
  background-color: #ffffff;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: var(--transition-normal);
  text-align: center;
  padding: var(--spacing-md);
}

.price-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.price-card-header {
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--light-color);
  margin-bottom: var(--spacing-md);
}

.price-amount {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-color);
  margin: var(--spacing-sm) 0;
}

.price-features {
  text-align: left;
  padding-left: var(--spacing-md);
  margin: var(--spacing-md) 0;
}

.price-features li {
  margin-bottom: 0.5rem;
}

/* Team section */
.team {
  background-color: #ffffff;
  position: relative;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--spacing-md);
}

.team-member {
  background-color: var(--light-color);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: var(--transition-normal);
  text-align: center;
}

.team-member:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.team-member-image {
  height: 300px;
  overflow: hidden;
}

.team-member-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-normal);
}

.team-member:hover .team-member-image img {
  transform: scale(1.05);
}

.team-member-content {
  padding: var(--spacing-md);
}

.team-member-role {
  color: var(--primary-color);
  font-weight: 500;
}

/* Reviews section */
.reviews {
  background-color: var(--light-color);
  position: relative;
}

.reviews-slider {
  position: relative;
  padding-bottom: var(--spacing-xl);
}

.review-item {
  background-color: #ffffff;
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  margin: 0 var(--spacing-sm);
}

.review-text {
  position: relative;
  padding-left: var(--spacing-md);
  border-left: 3px solid var(--primary-color);
  margin-bottom: var(--spacing-md);
  font-style: italic;
}

.review-author {
  display: flex;
  align-items: center;
}

.review-author-image {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  overflow: hidden;
  margin-right: var(--spacing-sm);
}

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

/* Core info section */
.core-info {
  background-color: #ffffff;
  position: relative;
}

.core-info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.core-info-item {
  background-color: var(--light-color);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
  transition: var(--transition-normal);
}

.core-info-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
}

.core-info-icon {
  font-size: 2rem;
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
}

/* Contact section */
.contact {
  background-color: var(--light-color);
  position: relative;
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
}

.contact-info {
  background-color: #ffffff;
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.contact-info-item {
  display: flex;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.contact-info-icon {
  font-size: 1.5rem;
  color: var(--primary-color);
  margin-right: var(--spacing-sm);
}

.contact-form {
  background-color: #ffffff;
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

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

.form-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
}

.form-control {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #e0e0e0;
  border-radius: var(--border-radius-sm);
  transition: var(--transition-fast);
}

.form-control:focus {
  border-color: var(--primary-color);
  outline: none;
  box-shadow: 0 0 0 2px rgba(56, 142, 60, 0.2);
}

.form-check {
  display: flex;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.form-check-input {
  margin-right: var(--spacing-xs);
}

/* Blog section */
.blog {
  background-color: #ffffff;
  position: relative;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.blog-item {
  background-color: var(--light-color);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: var(--transition-normal);
}

.blog-item:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.blog-image {
  height: 200px;
  overflow: hidden;
}

.blog-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-normal);
}

.blog-item:hover .blog-image img {
  transform: scale(1.05);
}

.blog-content {
  padding: var(--spacing-md);
}

/* FAQ section */
.faq {
  background-color: var(--light-color);
  position: relative;
}

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

.accordion-item {
  background-color: #ffffff;
  border-radius: var(--border-radius-md);
  margin-bottom: var(--spacing-sm);
  overflow: hidden;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.accordion-header {
  padding: var(--spacing-md);
  background-color: #ffffff;
  cursor: pointer;
  position: relative;
  font-weight: 500;
  transition: var(--transition-fast);
}

.accordion-header:hover {
  background-color: var(--light-color);
}

.accordion-header::after {
  content: '\f107';
  font-family: 'Font Awesome 5 Free';
  font-weight: 900;
  position: absolute;
  right: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  transition: var(--transition-fast);
}

.accordion-item.active .accordion-header::after {
  transform: translateY(-50%) rotate(180deg);
}

.accordion-body {
  padding: 0 var(--spacing-md);
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
}

.accordion-item.active .accordion-body {
  padding: var(--spacing-md);
  border-top: 1px solid var(--light-color);
}

/* Gallery section */
.gallery {
  background-color: #ffffff;
  position: relative;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-sm);
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius-md);
  height: 250px;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-normal);
}

.gallery-item:hover img {
  transform: scale(1.05);
}

.gallery-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(56, 142, 60, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition-normal);
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.gallery-icon {
  color: #ffffff;
  font-size: 2rem;
}

/* Footer */
.site-footer {
  background-color: var(--neutral-dark);
  color: #ffffff;
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--spacing-lg);
}

.footer-brand h2 {
  color: #ffffff;
  margin-bottom: var(--spacing-sm);
}

.footer-desc {
  margin-bottom: var(--spacing-md);
}

.footer-heading {
  color: #ffffff;
  margin-bottom: var(--spacing-md);
  font-size: 1.25rem;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: var(--spacing-xs);
}

.footer-links a {
  color: var(--neutral-light);
  transition: var(--transition-fast);
}

.footer-links a:hover {
  color: #ffffff;
  text-decoration: none;
}

.footer-contact-item {
  display: flex;
  align-items: center;
  margin-bottom: var(--spacing-xs);
}

.footer-contact-icon {
  color: var(--primary-light);
  margin-right: var(--spacing-xs);
}

.footer-bottom {
  padding-top: var(--spacing-md);
  margin-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
}

.copyright {
  color: var(--neutral-light);
  font-size: 0.875rem;
}

/* Utilities */
.text-center {
  text-align: center;
}

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

.mb-1 {
  margin-bottom: var(--spacing-xs);
}

.mb-2 {
  margin-bottom: var(--spacing-sm);
}

.mb-3 {
  margin-bottom: var(--spacing-md);
}

.mb-4 {
  margin-bottom: var(--spacing-lg);
}

.mb-5 {
  margin-bottom: var(--spacing-xl);
}

.mt-1 {
  margin-top: var(--spacing-xs);
}

.mt-2 {
  margin-top: var(--spacing-sm);
}

.mt-3 {
  margin-top: var(--spacing-md);
}

.mt-4 {
  margin-top: var(--spacing-lg);
}

.mt-5 {
  margin-top: var(--spacing-xl);
}

/* Shapes & decorations */
.shape-1 {
  position: absolute;
  top: -50px;
  right: -50px;
  width: 200px;
  height: 200px;
  background-color: rgba(139, 195, 74, 0.1);
  border-radius: 50%;
  z-index: 0;
}

.shape-2 {
  position: absolute;
  bottom: -50px;
  left: -50px;
  width: 200px;
  height: 200px;
  background-color: rgba(249, 168, 37, 0.1);
  border-radius: 50%;
  z-index: 0;
}

.blob-1 {
  position: absolute;
  top: -100px;
  right: 10%;
  width: 300px;
  height: 300px;
  background-color: rgba(56, 142, 60, 0.05);
  border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
  z-index: 0;
}

.blob-2 {
  position: absolute;
  bottom: -100px;
  left: 10%;
  width: 300px;
  height: 300px;
  background-color: rgba(249, 168, 37, 0.05);
  border-radius: 70% 30% 30% 70% / 70% 70% 30% 30%;
  z-index: 0;
}

/* Index space page */
.space-container {
  min-height: calc(100vh - 200px);
  display: flex;
  align-items: center;
  justify-content: center;
}