/* Global CSS for Grener Bio Website */

/* ===== BASE STYLES ===== */
:root {
  --green-primary: #2F855A;
  --green-dark: #1f5f3f;
  --green-light: #e6f4ea;
  --charcoal: #2d2d2d;
  --charcoal-light: #4a4a4a;
  --gray-light: #f5f7f5;
  --gray-border: #eaeaea;
  --white: #ffffff;
  --shadow-sm: 0 4px 6px -1px rgba(47,133,90,0.2);
  --shadow-md: 0 10px 15px -3px rgba(47,133,90,0.3);
  --shadow-lg: 0 25px 50px -12px rgba(47,133,90,0.25);
  --transition: all 0.3s ease-in-out;
}

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

body {
  font-family: 'Inter', 'Poppins', sans-serif;
  color: var(--charcoal);
  background-color: var(--white);
  scroll-behavior: smooth;
  line-height: 1.6;
}

h1, h2, h3, h4, h5, h6, .heading-font {
  font-family: 'Poppins', 'Inter', sans-serif;
  font-weight: 600;
  line-height: 1.2;
}

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

/* ===== UTILITY CLASSES ===== */
.text-green-brand {
  color: var(--green-primary);
}

.bg-green-brand {
  background-color: var(--green-primary);
}

.border-green-brand {
  border-color: var(--green-primary);
}

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

.text-charcoal {
  color: var(--charcoal);
}

.bg-green-light {
  background-color: var(--green-light);
}

.bg-gray-light {
  background-color: var(--gray-light);
}

.section-padding {
  padding: 5rem 1rem;
}

/* ===== BUTTON STYLES ===== */
.btn-primary {
  background-color: var(--green-primary);
  color: var(--white);
  padding: 0.75rem 2rem;
  border-radius: 9999px;
  font-weight: 600;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  display: inline-block;
  text-decoration: none;
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  background-color: var(--green-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: var(--white);
}

.btn-outline {
  background-color: transparent;
  border: 2px solid var(--green-primary);
  color: var(--green-primary);
  padding: 0.75rem 2rem;
  border-radius: 9999px;
  font-weight: 600;
  transition: var(--transition);
  display: inline-block;
  text-decoration: none;
  cursor: pointer;
}

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

.btn-small {
  padding: 0.5rem 1.5rem;
  font-size: 0.875rem;
}

/* ===== NAVIGATION STYLES ===== */
.sticky-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background-color: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid var(--gray-border);
}

.nav-menu {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-menu a {
  font-weight: 500;
  transition: color 0.2s;
  position: relative;
  padding: 0.5rem 0;
  text-decoration: none;
  color: var(--charcoal);
}

.nav-menu a:hover {
  color: var(--green-primary);
}

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

.nav-menu a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--green-primary);
  border-radius: 2px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--charcoal);
}

.logo i {
  font-size: 2rem;
  color: var(--green-primary);
}

.logo span {
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: -0.025em;
}

/* Mobile Menu */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
}

.bar {
  width: 25px;
  height: 3px;
  background-color: var(--charcoal);
  transition: var(--transition);
}

.hamburger.active .bar:nth-child(2) {
  opacity: 0;
}

.hamburger.active .bar:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.hamburger.active .bar:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.mobile-nav-menu {
  display: none;
  background: var(--white);
  width: 100%;
  padding: 1rem;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  list-style: none;
}

.mobile-nav-menu.active {
  display: block;
}

.mobile-nav-menu li {
  padding: 0.75rem 0;
}

.mobile-nav-menu a {
  text-decoration: none;
  color: var(--charcoal);
  font-weight: 500;
  display: block;
}

.mobile-nav-menu a:hover,
.mobile-nav-menu a.active {
  color: var(--green-primary);
}

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-menu {
    display: none;
  }

  .desktop-only {
    display: none;
  }
}

/* ===== COMPONENT STYLES ===== */
/* Feature Icons */
.feature-icon {
  background-color: var(--green-light);
  color: var(--green-primary);
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 1.5rem;
}

/* Cards */
.step-card {
  background: #f9f9f9;
  border-radius: 2rem;
  padding: 2rem 1.5rem;
  transition: var(--transition);
}

.step-card:hover {
  background: var(--white);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.05);
}

.testimonial-card {
  background: var(--gray-light);
  border-radius: 2rem;
  padding: 2rem;
}

.industry-tile {
  background: #f0f4f0;
  padding: 1.75rem 1rem;
  border-radius: 1.5rem;
  text-align: center;
  font-weight: 600;
  color: var(--charcoal);
  transition: var(--transition);
  border: 1px solid transparent;
  cursor: pointer;
}

.industry-tile i {
  color: var(--green-primary);
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
}

.industry-tile:hover {
  border-color: var(--green-primary);
  background: var(--white);
}

.product-card {
  background: var(--white);
  border-radius: 2rem;
  padding: 2rem;
  transition: var(--transition);
  border: 1px solid var(--gray-border);
  position: relative;
}

.product-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
  border-color: var(--green-primary);
}

.product-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--green-primary);
  color: var(--white);
  padding: 0.25rem 1rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 600;
}

/* Gallery Items */
.gallery-item {
  position: relative;
  border-radius: 1.5rem;
  overflow: hidden;
  cursor: pointer;
}

.gallery-item img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  transition: var(--transition);
}

.gallery-item:hover img {
  transform: scale(1.1);
}

.gallery-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
  color: white;
  padding: 2rem 1.5rem 1.5rem;
  transform: translateY(100%);
  transition: var(--transition);
}

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

/* Timeline */
.timeline-item {
  position: relative;
  padding-left: 3rem;
  padding-bottom: 3rem;
  border-left: 3px solid var(--green-primary);
}

.timeline-item:last-child {
  border-left-color: transparent;
}

.timeline-dot {
  position: absolute;
  left: -0.75rem;
  width: 1.5rem;
  height: 1.5rem;
  background: var(--green-primary);
  border-radius: 50%;
  border: 3px solid var(--white);
  box-shadow: 0 0 0 3px var(--green-light);
}

.timeline-date {
  font-weight: 600;
  color: var(--green-primary);
  margin-bottom: 0.5rem;
}

/* Tutorial Cards */
.tutorial-card {
  background: var(--white);
  border-radius: 1.5rem;
  overflow: hidden;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
  border: 1px solid var(--gray-border);
}

.tutorial-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.tutorial-image {
  height: 200px;
  background: var(--green-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--green-primary);
}

.tutorial-content {
  padding: 1.5rem;
}

/* Installation Steps */
.installation-step {
  display: flex;
  gap: 1.5rem;
  padding: 1.5rem;
  background: var(--white);
  border-radius: 1rem;
  margin-bottom: 1rem;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.step-number {
  width: 50px;
  height: 50px;
  background: var(--green-primary);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.25rem;
  flex-shrink: 0;
}

/* Contact Form */
.form-input {
  width: 100%;
  padding: 1rem 1.5rem;
  border: 2px solid var(--gray-border);
  border-radius: 9999px;
  font-size: 1rem;
  transition: var(--transition);
}

.form-input:focus {
  outline: none;
  border-color: var(--green-primary);
  box-shadow: 0 0 0 3px rgba(47,133,90,0.1);
}

.form-textarea {
  border-radius: 2rem;
  padding: 1rem 1.5rem;
  resize: vertical;
  min-height: 120px;
}

/* Team Cards */
.team-card {
  text-align: center;
  background: var(--white);
  border-radius: 2rem;
  padding: 2rem;
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
  transition: var(--transition);
}

.team-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.team-image {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  margin: 0 auto 1.5rem;
  background: var(--green-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  color: var(--green-primary);
}

/* ===== FOOTER STYLES ===== */
.footer {
  background-color: var(--charcoal);
  color: var(--white);
  padding: 4rem 0 2rem;
}

.footer-link {
  color: #ccc;
  transition: color 0.2s;
  text-decoration: none;
}

.footer-link:hover {
  color: var(--white);
}

.footer-heading {
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
}

.footer-contact i {
  color: var(--green-primary);
  margin-right: 0.75rem;
}

/* ===== POPUP STYLES ===== */
#lead-popup {
  transition: opacity 0.3s, transform 0.3s;
  transform: translateY(0);
}

.popup-hidden {
  opacity: 0 !important;
  pointer-events: none;
  transform: translateY(20px) !important;
}

/* ===== LOADER ===== */
.page-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s;
}

.loader-hidden {
  opacity: 0;
  pointer-events: none;
}

.loader-spinner {
  width: 50px;
  height: 50px;
  border: 3px solid var(--green-light);
  border-top-color: var(--green-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ===== ANIMATIONS ===== */
.fade-in {
  animation: fadeIn 1s ease-in;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== RESPONSIVE UTILITIES ===== */
@media (max-width: 640px) {
  .section-padding {
    padding: 3rem 1rem;
  }

  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 2rem;
  }
}