/* Design System & Stylesheet for Shivam Renew-tech */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

:root {
  /* Color Palette (Amber Gold & Forest Green) */
  --primary: #0F3A20;       /* Deep Forest Green */
  --primary-light: #1A5432; /* Lighter Forest Green */
  --accent: #E5A919;        /* Amber Gold */
  --accent-light: #F3C34B;  /* Light Gold */
  --dark: #121A15;          /* Very Dark Green/Slate */
  --light: #F4F7F5;         /* Soft Off-White */
  --white: #FFFFFF;
  --gray: #6C7A70;          /* Gray with a hint of green */
  --shadow: rgba(15, 58, 32, 0.08);
  
  /* Fonts */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;

  /* Transitions */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--white);
  color: var(--dark);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--primary);
  font-weight: 700;
}

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

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

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Section Header */
.section-header {
  text-align: center;
  margin-bottom: 60px;
  opacity: 0;
  transform: translateY(20px);
  transition: var(--transition);
}

.section-header.visible {
  opacity: 1;
  transform: translateY(0);
}

.section-header h2 {
  font-size: 2.5rem;
  margin-bottom: 16px;
  position: relative;
  display: inline-block;
}

.section-header h2::after {
  content: '';
  position: absolute;
  width: 60px;
  height: 4px;
  background-color: var(--accent);
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 2px;
}

.section-header p {
  color: var(--gray);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 16px auto 0 auto;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 30px;
  font-weight: 600;
  font-family: var(--font-heading);
  font-size: 1rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
}

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

.btn-primary:hover {
  background-color: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(15, 58, 32, 0.2);
}

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

.btn-accent:hover {
  background-color: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(229, 169, 25, 0.3);
}

.btn-outline {
  border-color: var(--white);
  color: var(--white);
  background-color: transparent;
}

.btn-outline:hover {
  background-color: var(--white);
  color: var(--primary);
  transform: translateY(-2px);
}

/* Header & Navbar */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: transparent;
  transition: var(--transition);
  padding: 20px 0;
}

header.scrolled {
  background-color: var(--white);
  box-shadow: 0 4px 30px var(--shadow);
  padding: 12px 0;
}

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

.logo-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-img {
  height: 50px;
  width: auto;
  border-radius: 4px;
}

.brand-name {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--white);
  line-height: 1.1;
}

header.scrolled .brand-name {
  color: var(--primary);
}

.brand-name span {
  color: var(--accent);
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
}

/* Navigation Links */
.nav-menu {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav-link {
  color: var(--white);
  font-weight: 500;
  font-size: 1rem;
  position: relative;
  padding: 8px 0;
}

header.scrolled .nav-link {
  color: var(--dark);
}

header.scrolled .nav-link:hover {
  color: var(--primary);
}

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

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

.nav-btn {
  display: none;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
}

.menu-toggle span {
  width: 28px;
  height: 3px;
  background-color: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

header.scrolled .menu-toggle span {
  background-color: var(--primary);
}

/* Hero Section */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-image: linear-gradient(rgba(15, 58, 32, 0.65), rgba(18, 26, 21, 0.85)), url('hero_bg.png');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  color: var(--white);
  text-align: center;
  padding-top: 80px;
}

.hero-content {
  max-width: 800px;
}

.hero-tagline {
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 4px;
  color: var(--accent);
  margin-bottom: 20px;
  animation: fadeInUp 1s ease;
}

.hero h1 {
  font-size: 3.5rem;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 24px;
  font-weight: 800;
  animation: fadeInUp 1.2s ease;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 40px;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 300;
  animation: fadeInUp 1.4s ease;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  animation: fadeInUp 1.6s ease;
}

/* About Section */
.about {
  padding: 100px 0;
  background-color: var(--white);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-text {
  opacity: 0;
  transform: translateX(-30px);
  transition: var(--transition);
}

.about-text.visible {
  opacity: 1;
  transform: translateX(0);
}

.about-badge {
  display: inline-block;
  background-color: rgba(229, 169, 25, 0.1);
  color: var(--primary);
  padding: 6px 16px;
  border-radius: 20px;
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 20px;
}

.about-text h3 {
  font-size: 2.2rem;
  margin-bottom: 20px;
  line-height: 1.3;
}

.about-text p {
  color: var(--gray);
  margin-bottom: 30px;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.stat-card {
  background-color: var(--light);
  padding: 24px;
  border-radius: 16px;
  border-left: 4px solid var(--accent);
  transition: var(--transition);
}

.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px var(--shadow);
}

.stat-num {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary);
  display: block;
}

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

.about-image {
  position: relative;
  opacity: 0;
  transform: translateX(30px);
  transition: var(--transition);
}

.about-image.visible {
  opacity: 1;
  transform: translateX(0);
}

.about-image img {
  border-radius: 24px;
  box-shadow: 0 20px 40px var(--shadow);
}

.about-experience-badge {
  position: absolute;
  bottom: -20px;
  left: -20px;
  background-color: var(--primary);
  color: var(--white);
  padding: 24px 30px;
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.15);
  display: flex;
  align-items: center;
  gap: 16px;
}

.badge-num {
  font-size: 3rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}

.badge-text {
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1.2;
}

/* Mission & Vision Section */
.mission-vision {
  padding: 100px 0;
  background-color: var(--light);
}

.mv-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.mv-card {
  background-color: var(--white);
  padding: 50px 40px;
  border-radius: 24px;
  box-shadow: 0 10px 40px var(--shadow);
  transition: var(--transition);
  opacity: 0;
  transform: translateY(30px);
}

.mv-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.mv-icon {
  width: 60px;
  height: 60px;
  background-color: rgba(229, 169, 25, 0.1);
  color: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 24px;
}

.mv-card h3 {
  font-size: 1.8rem;
  margin-bottom: 16px;
}

.mv-card p {
  color: var(--gray);
}

/* EPC Capabilities Section */
.epc {
  padding: 100px 0;
  background-color: var(--white);
}

.epc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 30px;
}

.epc-card {
  background-color: var(--white);
  border-radius: 24px;
  padding: 40px;
  box-shadow: 0 10px 30px var(--shadow);
  border: 1px solid rgba(15, 58, 32, 0.05);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  opacity: 0;
  transform: translateY(30px);
}

.epc-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.epc-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background-color: var(--primary);
  transition: var(--transition);
}

.epc-card:hover::before {
  background-color: var(--accent);
  height: 8px;
}

.epc-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px var(--shadow);
}

.epc-letter {
  position: absolute;
  right: 24px;
  top: 20px;
  font-size: 5rem;
  font-weight: 900;
  color: rgba(15, 58, 32, 0.03);
  line-height: 1;
}

.epc-icon {
  width: 50px;
  height: 50px;
  color: var(--primary);
  margin-bottom: 30px;
}

.epc-card h3 {
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.epc-card p {
  color: var(--gray);
  margin-bottom: 24px;
}

.epc-list {
  list-style: none;
}

.epc-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  font-size: 0.95rem;
  color: var(--dark);
}

.epc-list svg {
  color: var(--accent);
  flex-shrink: 0;
}

/* Solutions / Target Segments */
.solutions {
  padding: 100px 0;
  background-color: var(--light);
}

.sol-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: center;
}

.sol-content {
  opacity: 0;
  transform: translateX(-30px);
  transition: var(--transition);
}

.sol-content.visible {
  opacity: 1;
  transform: translateX(0);
}

.sol-tabs {
  display: flex;
  flex-direction: column;
  gap: 16px;
  opacity: 0;
  transform: translateX(30px);
  transition: var(--transition);
}

.sol-tabs.visible {
  opacity: 1;
  transform: translateX(0);
}

.sol-tab {
  background-color: var(--white);
  padding: 24px;
  border-radius: 16px;
  display: flex;
  gap: 20px;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
}

.sol-tab:hover {
  transform: translateX(5px);
  box-shadow: 0 10px 20px var(--shadow);
}

.sol-tab.active {
  border-color: var(--primary);
  box-shadow: 0 10px 30px var(--shadow);
}

.sol-tab-icon {
  width: 48px;
  height: 48px;
  background-color: var(--light);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
  transition: var(--transition);
}

.sol-tab.active .sol-tab-icon {
  background-color: var(--primary);
  color: var(--white);
}

.sol-tab-text h4 {
  font-size: 1.15rem;
  margin-bottom: 4px;
}

.sol-tab-text p {
  color: var(--gray);
  font-size: 0.9rem;
}

.sol-detail-pane {
  background-color: var(--white);
  border-radius: 24px;
  padding: 40px;
  box-shadow: 0 20px 40px var(--shadow);
  display: none;
}

.sol-detail-pane.active {
  display: block;
  animation: fadeIn 0.5s ease;
}

.sol-detail-pane h3 {
  font-size: 1.8rem;
  margin-bottom: 16px;
}

.sol-detail-pane p {
  color: var(--gray);
  margin-bottom: 24px;
}

.sol-img-wrapper {
  border-radius: 16px;
  overflow: hidden;
  margin-top: 24px;
}

.sol-img-wrapper img {
  width: 100%;
  max-height: 250px;
  object-fit: cover;
}

/* Ongoing Projects Section */
.projects {
  padding: 100px 0;
  background-color: var(--light);
}

.projects-container {
  display: flex;
  flex-direction: column;
  gap: 60px;
}

.project-showcase-card {
  background-color: var(--white);
  border-radius: 24px;
  padding: 40px;
  box-shadow: 0 15px 35px var(--shadow);
  opacity: 0;
  transform: translateY(30px);
  transition: var(--transition);
}

.project-showcase-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.project-showcase-title {
  font-size: 1.4rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 24px;
  font-weight: 700;
}

.project-showcase-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 40px;
  margin-bottom: 30px;
}

.project-showcase-text p {
  color: var(--gray);
  font-size: 1rem;
  margin-bottom: 16px;
  line-height: 1.6;
  text-align: justify;
}

.project-showcase-text p:last-child {
  margin-bottom: 0;
}

.project-showcase-meta {
  background-color: var(--light);
  border-radius: 16px;
  padding: 24px 30px;
  border-left: 5px solid var(--accent);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.meta-row {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px dashed rgba(15, 58, 32, 0.1);
}

.meta-row:last-child {
  border-bottom: none;
}

.meta-label {
  font-weight: 700;
  color: var(--primary);
  font-size: 0.95rem;
}

.meta-value {
  color: var(--gray);
  font-size: 0.95rem;
  text-align: right;
}

.project-showcase-image {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  height: 420px;
  max-width: 600px;
  margin: 20px auto 0 auto;
  box-shadow: 0 8px 20px var(--shadow);
}

.project-showcase-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: var(--transition);
}

.project-img-dhamangaon {
  object-position: center;
}

.project-img-shamsherpur {
  object-position: center 75%;
}

.project-showcase-card:hover .project-showcase-image img {
  transform: scale(1.03);
}

.project-image-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 20px 24px;
  background: linear-gradient(transparent, rgba(18, 26, 21, 0.9));
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--white);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 1px;
}

.img-label-left {
  color: var(--accent);
}

.img-label-right {
  color: var(--white);
}

/* Ongoing Projects Responsive Overrides */
@media (max-width: 991px) {
  .project-showcase-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

@media (max-width: 768px) {
  .project-showcase-card {
    padding: 24px;
  }
  .project-showcase-image {
    height: 250px;
  }
  .project-image-overlay {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding: 16px;
  }
}

/* Contact Section */
.contact {
  padding: 100px 0;
  background-color: var(--white);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
}

.contact-info {
  opacity: 0;
  transform: translateX(-30px);
  transition: var(--transition);
}

.contact-info.visible {
  opacity: 1;
  transform: translateX(0);
}

.contact-info h3 {
  font-size: 2rem;
  margin-bottom: 20px;
}

.contact-info p {
  color: var(--gray);
  margin-bottom: 40px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.contact-icon {
  width: 48px;
  height: 48px;
  background-color: rgba(15, 58, 32, 0.05);
  color: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-item-text h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
}

.contact-item-text p {
  color: var(--gray);
  font-size: 0.95rem;
}

.contact-name {
  font-size: 0.95rem;
  color: var(--dark) !important;
  margin-bottom: 4px;
}

.contact-link {
  font-size: 0.9rem;
}

.contact-link a {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
}

.contact-link a:hover {
  color: var(--primary);
  text-decoration: underline;
}

.contact-form-card {
  background-color: var(--white);
  padding: 40px;
  border-radius: 24px;
  box-shadow: 0 20px 50px var(--shadow);
  border: 1px solid rgba(15, 58, 32, 0.05);
  opacity: 0;
  transform: translateX(30px);
  transition: var(--transition);
}

.contact-form-card.visible {
  opacity: 1;
  transform: translateX(0);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--primary);
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border-radius: 8px;
  border: 1px solid rgba(15, 58, 32, 0.1);
  background-color: var(--light);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--dark);
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent);
  background-color: var(--white);
  box-shadow: 0 0 0 4px rgba(229, 169, 25, 0.15);
}

/* Footer */
footer {
  background-color: var(--dark);
  color: var(--white);
  padding: 80px 0 30px 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}

.footer-brand h3 {
  color: var(--white);
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.footer-brand p {
  color: rgba(255,255,255,0.7);
  font-size: 0.95rem;
  margin-bottom: 24px;
}

.footer-links h4 {
  color: var(--accent);
  font-size: 1.1rem;
  margin-bottom: 20px;
}

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

.footer-links ul li {
  margin-bottom: 12px;
}

.footer-links ul li a {
  color: rgba(255,255,255,0.7);
  font-size: 0.95rem;
}

.footer-links ul li a:hover {
  color: var(--accent);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 30px;
  text-align: center;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.5);
}

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

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

/* Responsive Design */
@media (max-width: 1024px) {
  .about-grid, .solutions-grid, .contact-grid {
    gap: 40px;
  }
  .epc-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  h1 {
    font-size: 2.8rem !important;
  }
  .about-grid, .mv-grid, .sol-grid, .contact-grid {
    grid-template-columns: 1fr;
  }
  .epc-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .menu-toggle {
    display: flex;
  }
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background-color: var(--primary);
    flex-direction: column;
    padding: 100px 40px;
    transition: var(--transition);
    box-shadow: -10px 0 30px rgba(0,0,0,0.15);
  }
  .nav-menu.active {
    right: 0;
  }
  .nav-link {
    color: var(--white) !important;
    font-size: 1.2rem;
  }
  .about-image {
    order: -1;
  }
  .project-card {
    grid-template-columns: 1fr;
    gap: 0;
  }
}

@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .about-stats {
    grid-template-columns: 1fr;
  }
}