/* 
  EcoSpace - Green-Themed Website
  A modern, responsive website with a focus on sustainability
*/

/* Base Styles & CSS Reset */
:root {
  /* Primary Colors - Green Theme */
  --color-primary-100: #e6f2e6;
  --color-primary-200: #c1e0c1;
  --color-primary-300: #9cd09c;
  --color-primary-400: #77c077;
  --color-primary-500: #52b152;
  --color-primary-600: #3e8e3e;
  --color-primary-700: #2a6c2a;
  --color-primary-800: #1e5631;
  --color-primary-900: #123412;
  
  /* Secondary Colors */
  --color-secondary-500: #2E8B57;
  --color-secondary-700: #1a6e3d;
  
  /* Accent Colors */
  --color-accent-500: #f0b429;
  
  /* Success, Warning, Error */
  --color-success-500: #0d9488;
  --color-warning-500: #f59e0b;
  --color-error-500: #ef4444;
  
  /* Neutral Colors */
  --color-neutral-100: #f8f9fa;
  --color-neutral-200: #e9ecef;
  --color-neutral-300: #dee2e6;
  --color-neutral-400: #ced4da;
  --color-neutral-500: #adb5bd;
  --color-neutral-600: #6c757d;
  --color-neutral-700: #495057;
  --color-neutral-800: #343a40;
  --color-neutral-900: #212529;
  
  /* Font */
  --font-family: 'Inter', sans-serif;
  
  /* Spacing */
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 40px;
  --space-6: 48px;
  --space-7: 56px;
  --space-8: 64px;
  
  /* Breakpoints */
  --breakpoint-sm: 480px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1200px;
  
  /* Other */
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 16px;
  --transition-speed: 0.3s;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  line-height: 1.5;
  color: var(--color-neutral-800);
  background-color: var(--color-neutral-100);
  font-size: 16px;
}

h1, h2, h3, h4, h5, h6 {
  line-height: 1.2;
  margin-bottom: var(--space-2);
  font-weight: 700;
  color: var(--color-primary-800);
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

p {
  margin-bottom: var(--space-2);
  line-height: 1.6;
}

a {
  color: var(--color-primary-600);
  text-decoration: none;
  transition: color var(--transition-speed) ease;
}

a:hover {
  color: var(--color-primary-800);
}

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

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-2);
}

section {
  padding: var(--space-6) 0;
}

/* Header & Navigation */
header {
  position: fixed;
  width: 100%;
  top: 0;
  left: 0;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(5px);
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  transition: all var(--transition-speed) ease;
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-2) var(--space-2);
}

.logo h1 {
  font-size: 1.8rem;
  margin: 0;
  color: var(--color-primary-700);
}

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

.nav-links {
  display: flex;
  list-style: none;
}

.nav-links li {
  margin-left: var(--space-3);
}

.nav-links a {
  font-weight: 500;
  position: relative;
  padding: 8px 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 0;
  background-color: var(--color-primary-600);
  transition: width var(--transition-speed) ease;
}

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

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.bar {
  width: 25px;
  height: 3px;
  background-color: var(--color-primary-700);
  margin: 3px 0;
  transition: var(--transition-speed) ease;
}

/* Hero Section */
.hero {
  padding-top: calc(var(--space-8) + 72px);
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(to bottom, var(--color-primary-100), var(--color-neutral-100));
}

.hero .container {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.hero-content {
  flex: 1;
}

.hero-content h1 {
  font-size: 3rem;
  margin-bottom: var(--space-3);
  color: var(--color-primary-800);
  line-height: 1.2;
}

.hero-content p {
  font-size: 1.2rem;
  margin-bottom: var(--space-4);
  color: var(--color-neutral-700);
  max-width: 600px;
}

.hero-image {
  flex: 1;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  transform: perspective(1000px) rotateY(-5deg);
  transition: transform 0.5s ease;
}

.hero-image:hover {
  transform: perspective(1000px) rotateY(0);
}

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

/* Buttons */
.cta-buttons {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.btn {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--border-radius-md);
  font-weight: 500;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-speed) ease;
  border: none;
  font-size: 1rem;
}

.btn-primary {
  background-color: var(--color-primary-600);
  color: white;
}

.btn-primary:hover {
  background-color: var(--color-primary-700);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary-600);
  border: 2px solid var(--color-primary-600);
}

.btn-secondary:hover {
  background-color: var(--color-primary-100);
  color: var(--color-primary-700);
  transform: translateY(-2px);
}

/* Section Headers */
.section-header {
  text-align: center;
  margin-bottom: var(--space-6);
}

.section-header h2 {
  color: var(--color-primary-800);
  position: relative;
  display: inline-block;
  margin-bottom: var(--space-2);
}

.section-header h2::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: -10px;
  width: 50px;
  height: 3px;
  background-color: var(--color-primary-500);
  transform: translateX(-50%);
}

.section-header p {
  color: var(--color-neutral-600);
  font-size: 1.1rem;
}

/* About Section */
.about {
  background-color: white;
}

.about-content {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.about-image {
  flex: 1;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.about-text {
  flex: 1;
}

.stats {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

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

.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary-700);
}

.stat-label {
  color: var(--color-neutral-600);
  font-size: 0.9rem;
}

/* Services Section */
.services {
  background-color: var(--color-primary-100);
}

.service-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-4);
}

.card {
  background-color: white;
  border-radius: var(--border-radius-md);
  padding: var(--space-3);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.card-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-2);
}

.card h3 {
  margin-bottom: var(--space-1);
  color: var(--color-primary-700);
}

.card p {
  color: var(--color-neutral-700);
  margin-bottom: var(--space-2);
}

.card-link {
  display: inline-block;
  margin-top: var(--space-1);
  font-weight: 500;
  color: var(--color-primary-600);
  position: relative;
}

.card-link::after {
  content: '→';
  margin-left: 4px;
  transition: transform var(--transition-speed) ease;
  display: inline-block;
}

.card-link:hover::after {
  transform: translateX(4px);
}

/* Testimonials Section */
.testimonials {
  background-color: white;
}

.testimonial-slider {
  display: flex;
  gap: var(--space-4);
  overflow-x: auto;
  padding: var(--space-2) 0;
  scrollbar-width: none;
}

.testimonial-slider::-webkit-scrollbar {
  display: none;
}

.testimonial {
  flex: 0 0 calc(50% - var(--space-2));
  background-color: var(--color-neutral-100);
  border-radius: var(--border-radius-md);
  padding: var(--space-4);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.testimonial-content {
  position: relative;
  padding-left: var(--space-3);
  margin-bottom: var(--space-3);
}

.testimonial-content::before {
  content: '"';
  position: absolute;
  left: -10px;
  top: -20px;
  font-size: 4rem;
  color: var(--color-primary-300);
  opacity: 0.5;
  font-family: Georgia, serif;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.testimonial-author img {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  object-fit: cover;
}

.testimonial-author h4 {
  margin: 0;
  font-size: 1rem;
}

.testimonial-author p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-neutral-600);
}

/* Gallery Section */
.gallery {
  background-color: var(--color-primary-100);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-3);
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius-md);
  height: 250px;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

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

.gallery-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
  padding: var(--space-2);
  transform: translateY(100%);
  transition: transform var(--transition-speed) ease;
}

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

.gallery-item:hover .gallery-overlay {
  transform: translateY(0);
}

.gallery-overlay h3 {
  color: white;
  margin: 0;
  font-size: 1.2rem;
}

.gallery-overlay p {
  color: var(--color-neutral-300);
  margin: 0;
  font-size: 0.9rem;
}

/* Contact Section */
.contact {
  background-color: white;
}

.contact-content {
  display: flex;
  gap: var(--space-6);
}

.contact-info, .contact-form {
  flex: 1;
}

.contact-details {
  margin-top: var(--space-4);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: var(--space-2);
}

.contact-icon {
  font-size: 1.5rem;
  margin-right: var(--space-2);
  color: var(--color-primary-600);
}

.form-group {
  margin-bottom: var(--space-3);
}

label {
  display: block;
  margin-bottom: var(--space-1);
  font-weight: 500;
}

input, textarea {
  width: 100%;
  padding: var(--space-2);
  border: 1px solid var(--color-neutral-300);
  border-radius: var(--border-radius-md);
  font-family: var(--font-family);
  font-size: 1rem;
  transition: border-color var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

input:focus, textarea:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px var(--color-primary-200);
}

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

button[type="submit"] {
  cursor: pointer;
}

/* Footer */
footer {
  background-color: var(--color-primary-800);
  color: white;
  padding: var(--space-6) 0 var(--space-2);
}

.footer-content {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.footer-logo {
  flex: 1;
  min-width: 250px;
}

.footer-logo h2 {
  color: white;
  margin-bottom: var(--space-1);
}

.footer-logo p {
  color: var(--color-neutral-400);
}

.footer-links {
  flex: 2;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-column {
  min-width: 150px;
}

.footer-column h3 {
  color: white;
  font-size: 1.1rem;
  margin-bottom: var(--space-2);
}

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

.footer-column li {
  margin-bottom: var(--space-1);
}

.footer-column a {
  color: var(--color-neutral-400);
  transition: color var(--transition-speed) ease;
}

.footer-column a:hover {
  color: white;
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.social-link {
  color: var(--color-neutral-400);
  transition: color var(--transition-speed) ease;
}

.social-link:hover {
  color: white;
}

.footer-bottom {
  padding-top: var(--space-3);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
}

.footer-bottom p {
  color: var(--color-neutral-500);
  margin: 0;
  font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .hero-content h1 {
    font-size: 2.5rem;
  }
  
  .testimonial {
    flex: 0 0 calc(100% - var(--space-2));
  }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background-color: white;
    flex-direction: column;
    align-items: center;
    padding: var(--space-3) 0;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-speed) ease, opacity var(--transition-speed) ease;
  }
  
  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
  
  .nav-links li {
    margin: var(--space-1) 0;
  }
  
  .mobile-menu-btn {
    display: flex;
  }
  
  .hero .container {
    flex-direction: column;
  }
  
  .hero-content {
    order: 2;
    text-align: center;
  }
  
  .hero-image {
    order: 1;
    margin-bottom: var(--space-4);
  }
  
  .cta-buttons {
    justify-content: center;
  }
  
  .about-content {
    flex-direction: column;
  }
  
  .contact-content {
    flex-direction: column;
  }
  
  .footer-logo, .footer-links {
    flex: 1 1 100%;
  }
}

@media (max-width: 480px) {
  .hero-content h1 {
    font-size: 2rem;
  }
  
  .stats {
    flex-direction: column;
    gap: var(--space-2);
  }
  
  .gallery-grid {
    grid-template-columns: 1fr;
  }
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.service-cards .card {
  opacity: 0;
  animation: fadeIn 0.5s ease forwards;
}

.service-cards .card:nth-child(1) { animation-delay: 0.1s; }
.service-cards .card:nth-child(2) { animation-delay: 0.2s; }
.service-cards .card:nth-child(3) { animation-delay: 0.3s; }
.service-cards .card:nth-child(4) { animation-delay: 0.4s; }

/* Scroll Animations */
@media (prefers-reduced-motion: no-preference) {
  .about-image, .about-text, .gallery-item, .contact-info, .contact-form {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
  }
  
  .about-image.visible, .about-text.visible, .gallery-item.visible, .contact-info.visible, .contact-form.visible {
    opacity: 1;
    transform: translateY(0);
  }
}