/* Global Typography - Montserrat Font, Non-Bold, Small Sizes */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@200;300;400;500&display=swap');

/* Sustainable Future - Futuristic but Uniform with Website */

*{
  box-sizing:border-box;
  margin:0;
  padding:0;
  font-family: 'Montserrat' !important;
  font-weight: 400 !important;
}

html, body {
  font-size: 14px;
  font-weight: 400;
  line-height: 1.4;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 400 !important;
}

strong, b {
  font-weight: 400 !important;
}

nav, nav a, .navbar, .nav-link, .menu-item, .main-nav a, .mobile-nav-link {
  font-size: 12px !important;
  font-weight: 400 !important;
  font-family: 'Montserrat' !important;
}

p {
  font-size: 13px;
  font-weight: 400 !important;
}

:root {
  --gold: #d4a000;
  --bg: #1a1a1a;
  --paper: #2a2a2a;
  --muted: rgba(255, 255, 255, 0.6);
  --dark: #ffffff;
  --gold-glow: rgba(212, 160, 0, 0.4);
  --gold-light: rgba(212, 160, 0, 0.15);
}

body.bg-light {
  background: linear-gradient(180deg, #1a1a1a 0%, #252525 50%, #1f1f1f 100%);
  color: #ffffff;
  font-family: 'Montserrat';
  position: relative;
  overflow-x: hidden;
}

body.bg-light::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 30%, rgba(212, 160, 0, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(212, 160, 0, 0.08) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

/* Hero Section - Futuristic but Uniform Style */
.sustainable-hero {
  padding: 120px 40px 80px;
  background: linear-gradient(135deg, rgba(212,160,0,0.15) 0%, rgba(212,160,0,0.08) 100%);
  text-align: center;
  margin-top: 60px;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid rgba(212, 160, 0, 0.2);
}

.sustainable-hero::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--gold-light) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(80px);
  animation: pulse 8s ease-in-out infinite;
}

.sustainable-hero::after {
  content: "";
  position: absolute;
  bottom: -30%;
  left: -5%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--gold-light) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(80px);
  animation: pulse 10s ease-in-out infinite reverse;
}

@keyframes pulse {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.1); }
}

.hero-content {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: 2.2rem;
  font-weight: 400;
  color: #ffffff;
  margin-bottom: 20px;
  font-family: 'Montserrat';
  position: relative;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.hero-title::after {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, transparent 0%, var(--gold-light) 50%, transparent 100%);
  opacity: 0;
  animation: title-shimmer 3s ease-in-out infinite;
  pointer-events: none;
}

@keyframes title-shimmer {
  0%, 100% { opacity: 0; }
  50% { opacity: 0.3; }
}

.hero-underline {
  width: 100px;
  height: 4px;
  background: var(--gold);
  margin: 0 auto 30px;
  box-shadow: 0 0 15px var(--gold-glow);
  animation: underline-glow 2s ease-in-out infinite alternate;
  position: relative;
}

.hero-underline::before {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: var(--gold);
  filter: blur(8px);
  opacity: 0.5;
  z-index: -1;
}

@keyframes underline-glow {
  from { box-shadow: 0 0 15px var(--gold-glow); }
  to { box-shadow: 0 0 25px var(--gold-glow), 0 0 40px rgba(212, 160, 0, 0.2); }
}

.hero-subtitle {
  font-size: 1.5rem;
  color: rgba(255, 255, 255, 0.8);
  font-weight: 400;
  font-family: 'Montserrat';
  max-width: 900px;
  margin: 0 auto;
  text-shadow: 0 1px 5px rgba(0, 0, 0, 0.3);
}

/* Container */
.sustainable-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0;
  position: relative;
  z-index: 1;
}

/* Section Styling */
.sustainable-section {
  padding: 80px 0;
  background: var(--bg);
  position: relative;
}

.sustainable-section:nth-child(even) {
  background: #222222;
}

.sustainable-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, var(--gold-light) 0%, transparent 100%);
  opacity: 0.3;
  pointer-events: none;
  z-index: 0;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
  position: relative;
  z-index: 1;
}

.category-title {
  font-size: 1.8rem;
  font-weight: 400;
  color: #ffffff;
  margin-bottom: 30px;
  padding-bottom: 15px;
  border-bottom: 2px solid var(--gold);
  font-family: 'Montserrat';
  position: relative;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.category-title::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100px;
  height: 2px;
  background: var(--gold);
  box-shadow: 0 0 15px var(--gold-glow);
  animation: title-line-glow 2s ease-in-out infinite alternate;
}

@keyframes title-line-glow {
  from { box-shadow: 0 0 15px var(--gold-glow); }
  to { box-shadow: 0 0 25px var(--gold-glow), 0 0 40px rgba(212, 160, 0, 0.2); }
}

/* Grid Layout */
.sustainable-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  position: relative;
  z-index: 1;
}

.sustainable-card {
  animation: fadeInUp 0.6s ease-out;
  animation-fill-mode: both;
}

.sustainable-card:nth-child(1) { animation-delay: 0.1s; }
.sustainable-card:nth-child(2) { animation-delay: 0.2s; }
.sustainable-card:nth-child(3) { animation-delay: 0.3s; }
.sustainable-card:nth-child(4) { animation-delay: 0.4s; }
.sustainable-card:nth-child(5) { animation-delay: 0.5s; }

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Card Styling - Futuristic but Uniform */
.sustainable-card {
  background: var(--paper);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  border-left: 4px solid var(--gold);
  border: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
}

.sustainable-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold) 0%, rgba(212, 160, 0, 0.5) 100%);
  opacity: 0;
  transition: opacity 0.4s ease;
  box-shadow: 0 0 15px var(--gold-glow);
}

.sustainable-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--gold-light) 0%, transparent 100%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
  z-index: 0;
}

.sustainable-card:hover {
  transform: translateY(-8px) scale(1.01);
  box-shadow: 0 12px 40px rgba(212, 160, 0, 0.2), 0 0 30px var(--gold-glow);
  border-left-color: var(--gold);
  border-left-width: 6px;
}

.sustainable-card:hover::before {
  opacity: 1;
  animation: border-glow 2s ease-in-out infinite;
}

.sustainable-card:hover::after {
  opacity: 0.3;
}

@keyframes border-glow {
  0%, 100% { box-shadow: 0 0 15px var(--gold-glow); }
  50% { box-shadow: 0 0 25px var(--gold-glow), 0 0 40px rgba(212, 160, 0, 0.3); }
}

.card-img {
  width: 100%;
  height: 200px;
  overflow: hidden;
  background: #1a1a1a;
  position: relative;
}

.card-img::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(212, 160, 0, 0.1) 100%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
  z-index: 1;
}

.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease, filter 0.5s ease;
}

.sustainable-card:hover .card-img img {
  transform: scale(1.08);
  filter: brightness(1.1) contrast(1.05);
}

.sustainable-card:hover .card-img::after {
  opacity: 1;
}

.card-body {
  padding: 25px;
  position: relative;
  z-index: 1;
}

.card-body h3 {
  font-size: 1.5rem;
  font-weight: 400;
  color: #ffffff;
  margin: 0 0 12px 0;
  font-family: 'Montserrat';
  transition: all 0.3s ease;
  text-shadow: 0 1px 5px rgba(0, 0, 0, 0.3);
}

.sustainable-card:hover .card-body h3 {
  color: var(--gold);
  text-shadow: 0 0 15px var(--gold-glow), 0 0 25px rgba(212, 160, 0, 0.3);
}

.card-body p {
  font-size: 1rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.7);
  margin: 0;
  font-family: 'Montserrat';
  transition: color 0.3s ease;
}

.sustainable-card:hover .card-body p {
  color: rgba(255, 255, 255, 0.9);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .sustainable-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
  }
}

@media (max-width: 800px) {
  .sustainable-hero {
    padding: 100px 20px 60px;
  }

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

  .hero-subtitle {
    font-size: 0.95rem;
  }

  .sustainable-section {
    padding: 60px 0;
  }

  .container {
    padding: 0 20px;
  }

  .category-title {
    font-size: 1.5rem;
  }

  .sustainable-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .card-img {
    height: 180px;
  }
}

@media (max-width: 480px) {
  .sustainable-hero {
    padding: 80px 15px 40px;
  }

  .hero-title {
    font-size: 1.5rem;
  }

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

  .sustainable-container {
    padding: 0;
  }

  .container {
    padding: 0 15px;
  }

  .category-title {
    font-size: 0.95rem;
  }

  .card-body {
    padding: 20px;
  }

  .card-body h3 {
    font-size: 1rem;
  }

  .card-body p {
    font-size: 0.95rem;
  }

  .card-img {
    height: 160px;
  }
}

/* Solar Showcase Section */
.solar-showcase {
  padding: 100px 0;
  background: linear-gradient(180deg, #1a1a1a 0%, #252525 100%);
  position: relative;
  overflow: hidden;
}

.solar-showcase::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 30% 40%, rgba(212, 160, 0, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 70% 60%, rgba(212, 160, 0, 0.1) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

.solar-showcase .container {
  position: relative;
  z-index: 1;
}

.showcase-title {
  font-size: 1.8rem;
  font-weight: 400;
  color: #ffffff;
  text-align: center;
  margin-bottom: 60px;
  font-family: 'Montserrat';
  padding-bottom: 20px;
  border-bottom: 2px solid var(--gold);
  position: relative;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.showcase-title::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 2px;
  background: var(--gold);
  box-shadow: 0 0 15px var(--gold-glow);
  animation: title-line-glow 2s ease-in-out infinite alternate;
}

.solar-images-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  position: relative;
  z-index: 1;
}

.solar-image-item {
  position: relative;
  height: 400px;
  border-radius: 16px;
  overflow: hidden;
  background: var(--paper);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
}

.solar-image-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.7) 100%);
  z-index: 1;
  transition: opacity 0.4s ease;
}

.solar-image-item:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 15px 50px rgba(212, 160, 0, 0.3), 0 0 30px var(--gold-glow);
  border-color: var(--gold);
}

.solar-image-item:hover::before {
  opacity: 0.8;
}

.solar-image-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease, filter 0.4s ease;
  filter: brightness(0.9);
}

.solar-image-item:hover img {
  transform: scale(1.1);
  filter: brightness(1.1);
}

.solar-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 40px 30px;
  z-index: 2;
  transform: translateY(20px);
  transition: transform 0.4s ease;
}

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

.solar-overlay h3 {
  font-size: 1.8rem;
  font-weight: 400;
  color: #ffffff;
  margin: 0 0 10px 0;
  font-family: 'Montserrat';
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
  transition: color 0.3s ease;
}

.solar-image-item:hover .solar-overlay h3 {
  color: var(--gold);
  text-shadow: 0 0 15px var(--gold-glow), 0 0 25px rgba(212, 160, 0, 0.3);
}

.solar-overlay p {
  font-size: 1.1rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.9);
  margin: 0;
  font-family: 'Montserrat';
  text-shadow: 0 1px 5px rgba(0, 0, 0, 0.5);
}

/* Responsive for Solar Showcase */
@media (max-width: 1024px) {
  .solar-images-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
  }

  .solar-image-item {
    height: 350px;
  }
}

@media (max-width: 800px) {
  .solar-showcase {
    padding: 80px 0;
  }

  .showcase-title {
    font-size: 1.5rem;
    margin-bottom: 40px;
  }

  .solar-images-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .solar-image-item {
    height: 300px;
  }

  .solar-overlay {
    padding: 30px 25px;
  }

  .solar-overlay h3 {
    font-size: 1.5rem;
  }

  .solar-overlay p {
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  .solar-showcase {
    padding: 60px 0;
  }

  .showcase-title {
    font-size: 1.8rem;
    margin-bottom: 30px;
  }

  .solar-image-item {
    height: 250px;
  }

  .solar-overlay {
    padding: 25px 20px;
  }

  .solar-overlay h3 {
    font-size: 1.3rem;
  }

  .solar-overlay p {
    font-size: 0.95rem;
  }
}