:root {
  
  --primary-color: #e63946; 
  
  --dark-color: #1d3557;    
  --light-color: #f1faee;   
  --white-color: #ffffff;
  --black-color: #222222;
  --accent-orange: #FF7A00; 
  --accent-orange-rgb: 255, 122, 0; 
  --neutral-text-color: #555555; 
  --light-gray-bg: #f8f9fa; 
  --medium-gray: #ced4da; 
  
  
  --heading-font: 'Montserrat', sans-serif;
  --body-font: 'Open Sans', sans-serif;
  
  
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 5rem;
  
  
  --border-radius: 4px;
  
  
  --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  --box-shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  
  
  --transition-speed: 0.3s;
}


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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  overflow-x: hidden;
}

body {
  font-family: var(--body-font);
  line-height: 1.6;
  color: var(--black-color);
  background-color: var(--white-color);
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
  font-size: 16px;
}

/* Improve text readability on mobile */
p {
  font-size: 1rem;
  line-height: 1.7;
}

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

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

a:hover {
  color: var(--accent-orange); 
}

ul {
  list-style: none;
}

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


.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  box-sizing: border-box;
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-sm);
  }
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-lg);
  position: relative;
  padding-bottom: var(--spacing-sm);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 3px;
  background-color: var(--accent-orange);
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background-color: var(--accent-orange);
  color: var(--white-color);
  box-shadow: 0 2px 4px rgba(0,0,0,0.15);
  transition: background-color 0.5s ease, 
              color 0.5s ease, 
              box-shadow 0.4s ease;
}

.btn-primary:hover {
  background-color: var(--dark-color);
  color: var(--white-color);
  box-shadow: 0 6px 12px rgba(0,0,0,0.2);
}

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

.btn-secondary:hover {
  background-color: var(--accent-orange);
  color: var(--white-color);
}


#header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.95);
  box-shadow: var(--box-shadow);
  z-index: 1000;
  padding: 1rem 0;
  transition: padding var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}


#header.scrolled {
  padding: 0.5rem 0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}


.contact-intro {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--spacing-lg) auto;
}

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

.logo a {
  font-family: var(--heading-font);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--dark-color);
}

.logo h1 {
  margin-bottom: 0; 
}

.logo span {
  color: var(--primary-color);
}

.nav-menu {
  display: flex;
}

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

.nav-link {
  color: var(--dark-color);
  font-weight: 600;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: width var(--transition-speed);
}

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

.nav-link.active {
  color: var(--accent-orange); 
}

.nav-toggle {
  display: none;
  cursor: pointer;
}


#hero {
  height: 100vh;
  display: flex;
  align-items: center;
  text-align: center;
  color: var(--white-color);
  margin-top: 70px; 
  position: relative; 
  overflow: hidden; 
}

/* Fixed background image layer - always visible behind content */
#hero::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-image: url('../images/hero-bg.jpg'); 
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  z-index: 0;
}

.hero-video-background {
  position: fixed; 
  top: 0; 
  left: 0;
  width: 100%;
  height: 100vh; 
  object-fit: cover;
  z-index: 1;
  max-width: 100vw;
  overflow: hidden;
}

.hero-overlay {
  position: fixed; 
  top: 0; 
  left: 0;
  width: 100%;
  height: 100vh; 
  background-color: rgba(0, 0, 0, 0.6);
  z-index: 2;
  backdrop-filter: blur(5px); 
  -webkit-backdrop-filter: blur(5px); 
}

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

.page-content-wrapper {
  position: relative; 
  z-index: 10;      
  background-color: var(--white-color); 
}

.hero-content h1 {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  color: var(--white-color);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5); 
  line-height: 1.35;
  letter-spacing: 0.5px;
}

.hero-content p {
  font-size: 1.2rem;
  margin-bottom: var(--spacing-lg);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5); 
  opacity: 0.9;
}


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

section:nth-child(even) {
  background-color: var(--light-gray-bg); 
}


@media (max-width: 768px) {
  /* Navigation overlay backdrop */
  .nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-speed), visibility var(--transition-speed);
    z-index: 999;
  }
  
  .nav-overlay.active {
    opacity: 1;
    visibility: visible;
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    background-color: var(--white-color);
    width: 85%;
    max-width: 320px;
    height: 100vh;
    flex-direction: column;
    align-items: flex-start;
    padding: var(--spacing-lg) var(--spacing-md);
    padding-top: 80px;
    transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    overflow-y: auto;
  }
  
  .nav-menu.active {
    right: 0;
  }
  
  .nav-menu li {
    margin: 0;
    width: 100%;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  }
  
  .nav-menu li:last-child {
    border-bottom: none;
  }
  
  .nav-link {
    display: block;
    padding: var(--spacing-sm) 0;
    width: 100%;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--dark-color);
    transition: color var(--transition-speed), padding-left var(--transition-speed);
  }
  
  .nav-link:hover,
  .nav-link.active {
    color: var(--accent-orange);
    padding-left: var(--spacing-xs);
  }
  
  .nav-link::after {
    display: none; /* Remove underline on mobile */
  }
  
  /* Improved hamburger button */
  .nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    cursor: pointer;
    padding: 0;
    background: transparent;
    border: none;
    z-index: 1001;
    position: relative;
  }
  
  .hamburger {
    display: block;
    width: 26px;
    height: 2.5px;
    background-color: var(--dark-color);
    position: relative;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 2px;
  }
  
  .hamburger::before,
  .hamburger::after {
    content: '';
    position: absolute;
    width: 26px;
    height: 2.5px;
    background-color: var(--dark-color);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 2px;
    left: 0;
  }
  
  .hamburger::before {
    top: -9px;
  }
  
  .hamburger::after {
    top: 9px;
  }
  
  /* Animated X when active */
  .nav-toggle.active .hamburger {
    background-color: transparent;
    transform: rotate(180deg);
  }
  
  .nav-toggle.active .hamburger::before {
    top: 0;
    transform: rotate(45deg);
    background-color: var(--accent-orange);
  }
  
  .nav-toggle.active .hamburger::after {
    top: 0;
    transform: rotate(-45deg);
    background-color: var(--accent-orange);
  }
  
  /* Hover effect on hamburger */
  .nav-toggle:hover .hamburger,
  .nav-toggle:hover .hamburger::before,
  .nav-toggle:hover .hamburger::after {
    background-color: var(--accent-orange);
  }
  
  .hero-content h1 {
    font-size: 2.25rem; /* Increased for better readability */
    line-height: 1.3;
  }
  
  .hero-content p {
    font-size: 1.15rem; /* Increased from 1rem */
    line-height: 1.7;
  }
}

@media (max-width: 768px) {
  /* Improve base font size and line height for better readability */
  html {
    font-size: 17px; /* Increased from 16px for better mobile readability */
  }
  
  body {
    line-height: 1.7; /* Increased line height for better readability */
  }
  
  /* Increase paragraph and body text sizes */
  p {
    font-size: 1.1rem; /* Increased from 1rem */
    line-height: 1.75;
  }
  
  /* Improve heading sizes */
  h1 {
    font-size: 2rem;
    line-height: 1.3;
  }
  
  h2 {
    font-size: 1.75rem;
    line-height: 1.3;
  }
  
  h3 {
    font-size: 1.5rem;
    line-height: 1.4;
  }
  
  h4 {
    font-size: 1.25rem;
    line-height: 1.4;
  }
  
  /* Improve section titles */
  .section-title {
    font-size: 2rem; /* Increased from default */
  }
}

@media (max-width: 480px) {
  html {
    font-size: 16px; /* Keep at 16px minimum, don't reduce to 14px */
  }
  
  .section-title {
    font-size: 1.75rem; /* Slightly smaller on very small screens but still readable */
  }
  
  h1 {
    font-size: 1.75rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
  
  h3 {
    font-size: 1.35rem;
  }
}

/* Improve readability for card text and small text elements on mobile */
@media (max-width: 768px) {
  /* Service cards */
  .service-card p {
    font-size: 1.05rem; /* Increased from default */
    line-height: 1.7;
  }
  
  /* Value cards */
  .value-card p {
    font-size: 1rem; /* Increased from 0.9rem */
    line-height: 1.7;
  }
  
  .value-card h4 {
    font-size: 1.2rem;
  }
  
  /* Material cards */
  .material-card p {
    font-size: 1.05rem; /* Increased from default */
    line-height: 1.7;
  }
  
  .material-features li {
    font-size: 1rem; /* Increased from 0.9rem */
    line-height: 1.7;
  }
  
  /* Contact items */
  .contact-item p {
    font-size: 1.05rem; /* Increased from 0.95rem */
    line-height: 1.7;
  }
  
  .contact-item h4 {
    font-size: 1.15rem; /* Increased from 1rem */
  }
  
  /* Project info */
  .project-info p {
    font-size: 1.05rem; /* Increased from 0.95rem */
    line-height: 1.7;
  }
  
  /* Form labels and text */
  .form-group label {
    font-size: 1rem; /* Increased from 0.9rem */
  }
  
  .floating-label-group label {
    font-size: 1.05rem; /* Increased from 1rem */
  }
  
  .floating-label-group input:focus ~ label,
  .floating-label-group input:not(:placeholder-shown) ~ label,
  .floating-label-group textarea:focus ~ label,
  .floating-label-group textarea:not(:placeholder-shown) ~ label {
    font-size: 0.9rem; /* Slightly smaller when floating but still readable */
  }
  
  .privacy-policy label {
    font-size: 1rem; /* Increased from 0.9rem */
    line-height: 1.6;
  }
  
  /* Footer text */
  .footer-logo p {
    font-size: 1rem; /* Increased from 0.9rem */
    line-height: 1.7;
  }
  
  .footer-links ul li a {
    font-size: 1rem;
    line-height: 1.7;
  }
  
  .footer-contact p {
    font-size: 1rem;
    line-height: 1.7;
  }
  
  .footer-bottom p {
    font-size: 1rem; /* Increased from 0.9rem */
  }
  
  /* About text */
  .about-text p {
    font-size: 1.1rem;
    line-height: 1.75;
  }
  
  /* Contact intro */
  .contact-intro p {
    font-size: 1.1rem;
    line-height: 1.75;
  }
  
  /* Materials intro */
  .materials-intro p {
    font-size: 1.1rem;
    line-height: 1.75;
  }
  
  /* Buttons - ensure text is readable */
  .btn {
    font-size: 1.05rem; /* Slightly larger for better touch targets */
    padding: 0.85rem 1.5rem; /* Slightly larger padding for better touch */
  }
  
  .btn-sm {
    font-size: 1rem;
    padding: 0.7rem 1.2rem;
  }
  
  /* Links */
  a {
    font-size: inherit; /* Inherit from parent for consistency */
  }
  
  /* List items */
  ul li,
  ol li {
    font-size: 1.05rem;
    line-height: 1.7;
    margin-bottom: 0.5rem;
  }
  
  /* Navigation links */
  .nav-link {
    font-size: 1.05rem;
  }
  
  /* Service links */
  .service-link {
    font-size: 1.05rem;
  }
  
  /* Center intro-cta button on mobile */
  .intro-cta {
    text-align: center;
  }
  
  .intro-cta .btn {
    margin-right: 0;
    margin-left: 0;
    display: inline-block;
  }
  
  /* Mobile Card UX Improvements - Cleaner, more modern look */
  /* Remove shadows and use subtle backgrounds/borders instead */
  
  /* Service Cards */
  .service-card {
    box-shadow: none;
    border: 1px solid rgba(0, 0, 0, 0.06);
    background-color: var(--white-color);
    padding: var(--spacing-lg);
    border-radius: 8px;
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
  }
  
  .service-card:hover {
    transform: none;
    box-shadow: none;
    background-color: var(--light-gray-bg);
    border-color: rgba(0, 0, 0, 0.1);
  }
  
  /* Value Cards */
  .value-card {
    box-shadow: none;
    border: 1px solid rgba(0, 0, 0, 0.06);
    background-color: var(--white-color);
    padding: var(--spacing-lg);
    border-radius: 8px;
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
  }
  
  .value-card:hover {
    transform: none;
    box-shadow: none;
    background-color: var(--light-gray-bg);
    border-color: rgba(0, 0, 0, 0.1);
  }
  
  /* Material Cards */
  .material-card {
    box-shadow: none;
    border: 1px solid rgba(0, 0, 0, 0.06);
    background-color: var(--white-color);
    padding: var(--spacing-lg);
    border-radius: 8px;
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
  }
  
  .material-card:hover {
    transform: none;
    box-shadow: none;
    background-color: var(--light-gray-bg);
    border-color: rgba(0, 0, 0, 0.1);
  }
  
  /* Project Items - Keep shadow but make it more subtle */
  .project-item {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    border-radius: 12px;
    overflow: hidden;
  }
  
  /* Contact Form - Cleaner look */
  .contact-form {
    box-shadow: none;
    border: 1px solid rgba(0, 0, 0, 0.08);
    background-color: var(--white-color);
    border-radius: 12px;
  }
  
  /* About Image - Remove shadow */
  .about-image {
    box-shadow: none;
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 12px;
  }
  
  .about-image:hover img {
    transform: none; /* Remove scale on mobile */
  }
}



.about-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  align-items: center;
}

.about-text h3 {
  margin-top: var(--spacing-md);
  color: var(--dark-color); 
  font-size: 1.5rem;
}

.about-text h3:first-child {
  margin-top: 0;
}

.about-text p {
  margin-bottom: var(--spacing-sm);
  line-height: 1.7;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.value-card {
  background-color: var(--white-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  box-shadow: var(--box-shadow);
  text-align: center;
  transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

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

.value-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: rgba(230, 57, 70, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-sm);
}

.value-icon i {
  font-size: 1.5rem;
  color: var(--accent-orange);
}

.value-card h4 {
  margin-bottom: var(--spacing-xs);
  font-size: 1.2rem;
}

.value-card p {
  font-size: 0.9rem;
  color: var(--black-color);
  opacity: 0.8;
}


@media (max-width: 768px) {
  .values-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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


.values-list {
  margin-bottom: var(--spacing-md);
}

.values-list li {
  margin-bottom: var(--spacing-xs);
  display: flex;
  align-items: flex-start;
}

.values-list i {
  color: var(--primary-color);
  margin-right: var(--spacing-xs);
  font-size: 1.1rem;
  margin-top: 0.2rem;
}

.about-image {
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--box-shadow);
  height: 100%;
  min-height: 300px;
  background-color: var(--light-color);
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-speed);
  display: block;
}

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

@media (max-width: 768px) {
  .about-content {
    grid-template-columns: 1fr;
  }
  
  .about-image {
    margin-top: var(--spacing-md);
    max-height: 400px;
  }
}


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

.service-card {
  background-color: var(--white-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  box-shadow: var(--box-shadow);
  transition: transform var(--transition-speed), box-shadow var(--transition-speed);
  text-align: center;
}

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

.service-icon {
  width: 70px;
  height: 70px;
  background-color: var(--light-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-sm);
}

.service-icon i {
  font-size: 2rem;
  color: var(--accent-orange);
}

.service-card h3 {
  margin-bottom: var(--spacing-sm);
  color: var(--dark-color);
}

.service-card p {
  margin-bottom: var(--spacing-md);
  color: var(--black-color);
}

.service-link {
  color: var(--dark-color); 
  font-weight: 600;
  display: inline-block;
  transition: color var(--transition-speed);
}

.service-link i {
  margin-left: 5px;
  transition: transform var(--transition-speed);
}

.service-link:hover {
  color: var(--accent-orange); 
}

.service-link:hover i {
  transform: translateX(5px);
}


.projects-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
  justify-items: center;
}

.project-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  height: 400px;
  width: 100%;
  max-width: 100%;
}

@media (min-width: 992px) {
  .projects-gallery {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .project-item {
    height: 500px;
    max-width: 100%;
  }
  
  
  .project-item:last-child:nth-child(2n + 1) {
    grid-column-end: -1;
    grid-column-start: 1;
    max-width: 50%;
  }
}

.project-image {
  width: 100%;
  height: 100%;
  position: relative;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-speed);
  display: block;
}

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(29, 53, 87, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-speed);
}

.project-info {
  text-align: center;
  padding: var(--spacing-md);
  color: var(--white-color);
  transform: translateY(20px);
  transition: transform var(--transition-speed);
  width: 100%;
}

.project-info h3 {
  color: var(--white-color);
  margin-bottom: var(--spacing-xs);
  font-size: 1.4rem;
}

.project-info p {
  margin-bottom: var(--spacing-sm);
  font-size: 0.95rem;
  line-height: 1.5;
}

.project-btn {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
}

.project-item:hover .project-overlay,
.project-item.active .project-overlay {
  opacity: 1;
}

.project-item:hover .project-info,
.project-item.active .project-info {
  transform: translateY(0);
}

.project-item:hover .project-image img,
.project-item.active .project-image img {
  transform: scale(1.1);
}

/* Touch device support - show overlay on touch */
@media (hover: none) and (pointer: coarse) {
  .project-item:active .project-overlay {
    opacity: 1;
  }
  
  .project-item:active .project-info {
    transform: translateY(0);
  }
}

@media (max-width: 768px) {
  .projects-gallery {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }
}


.contact-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.contact-info h3,
.contact-form h3 {
  margin-bottom: var(--spacing-md);
  color: var(--dark-color); 
}

.contact-info p {
  margin-bottom: var(--spacing-md);
}

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

.contact-item i {
  font-size: 1.2rem;
  color: var(--primary-color);
  margin-right: var(--spacing-sm);
  margin-top: 3px;
}

.contact-item h4 {
  margin-bottom: 5px;
  font-size: 1rem;
}

.social-links {
  display: flex;
  margin-top: var(--spacing-md);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--light-color);
  color: var(--dark-color);
  margin-right: var(--spacing-sm);
  transition: all var(--transition-speed);
}

.social-link:hover {
  background-color: var(--primary-color);
  color: var(--white-color);
}

.form-group {
  margin-bottom: var(--spacing-sm);
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}

/* Ensure reCAPTCHA doesn't cause overflow */
.g-recaptcha {
  max-width: 100%;
  overflow-x: hidden;
  transform-origin: 0 0;
}

@media (max-width: 400px) {
  .g-recaptcha {
    transform: scale(0.85);
  }
}

@media (max-width: 320px) {
  .g-recaptcha {
    transform: scale(0.75);
  }
}

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

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px; 
  border: 1px solid var(--medium-gray); 
  border-radius: var(--border-radius);
  font-family: var(--body-font);
  transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
  background-color: var(--white-color);
  box-sizing: border-box;
  max-width: 100%;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-orange);
  box-shadow: 0 0 0 0.2rem rgba(var(--accent-orange-rgb), 0.25); 
}


.floating-label-group {
  position: relative;
}

.floating-label-group label {
  position: absolute;
  top: 12px; 
  left: 12px; 
  font-size: 1rem; 
  color: var(--neutral-text-color);
  pointer-events: none;
  transition: all 0.2s ease-out;
  background-color: var(--white-color); 
  padding: 0 5px; 
}

.floating-label-group input:focus ~ label,
.floating-label-group input:not(:placeholder-shown) ~ label,
.floating-label-group textarea:focus ~ label,
.floating-label-group textarea:not(:placeholder-shown) ~ label {
  top: -10px; 
  left: 10px;
  font-size: 0.8rem; 
  color: var(--accent-orange);
}


.floating-label-group input,
.floating-label-group textarea {
  padding: 12px 12px 12px 12px; 
}


.floating-label-group input::placeholder,
.floating-label-group textarea::placeholder {
  color: var(--neutral-text-color);
  opacity: 0.6; 
}

.form-group select {
    padding: 12px; 
}

.privacy-policy {
  display: flex;
  align-items: center;
}

.privacy-policy input {
  width: auto;
  margin-right: 10px;
}

.privacy-policy label {
  margin-bottom: 0;
  font-weight: normal;
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .contact-container {
    grid-template-columns: 1fr;
  }
  
  .contact-form {
    margin-top: var(--spacing-md);
  }
  
  /* Center contact section elements on mobile */
  .contact-info {
    text-align: center;
  }
  
  .contact-info h3,
  .contact-form h3 {
    text-align: center;
  }
  
  .contact-item {
    justify-content: center;
    text-align: center;
    flex-direction: column;
    align-items: center;
  }
  
  .contact-item i {
    margin-right: 0;
    margin-bottom: var(--spacing-xs);
    margin-top: 0;
  }
  
  .contact-item h4,
  .contact-item p {
    text-align: center;
  }
  
  .g-recaptcha {
    display: flex;
    justify-content: center;
  }
  
  .privacy-policy {
    justify-content: center;
  }
}


#footer {
  
  background-color: rgba(29, 53, 87, 0.25); 
  backdrop-filter: blur(10px); 
  -webkit-backdrop-filter: blur(10px); 
  color: var(--white-color);
  padding: var(--spacing-lg) 0;
  position: relative; 
  z-index: 10;      
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-logo a {
  font-family: var(--heading-font);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white-color);
  margin-bottom: var(--spacing-sm);
  display: inline-block;
}

.footer-logo span {
  color: var(--primary-color);
}

.footer-logo p {
  margin-top: var(--spacing-xs);
  font-size: 0.9rem;
  opacity: 0.8;
}

.footer-links h4,
.footer-contact h4,
.footer-newsletter h4 {
  color: var(--white-color);
  margin-bottom: var(--spacing-sm);
  font-size: 1.1rem;
}

.footer-links ul li {
  margin-bottom: 8px;
}

.footer-links ul li a {
  color: var(--gray-color);
  transition: color var(--transition-speed);
}

.footer-links ul li a:hover {
  color: var(--primary-color);
}

.footer-contact p {
  margin-bottom: 8px;
  display: flex;
  align-items: center;
}

.footer-contact i {
  margin-right: 10px;
  color: var(--primary-color);
}

.newsletter-form {
  display: flex;
  margin-top: var(--spacing-sm);
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

.newsletter-form input {
  flex: 1;
  padding: 8px 10px;
  border: none;
  border-radius: var(--border-radius) 0 0 var(--border-radius);
  font-family: var(--body-font);
  min-width: 0;
  box-sizing: border-box;
}

.newsletter-form button {
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
  padding: 0 15px;
  font-size: 0.9rem;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.9rem;
}

.footer-bottom p {
  opacity: 0.8;
}

.footer-bottom-links a {
  color: var(--gray-color);
  margin-left: var(--spacing-sm);
  transition: color var(--transition-speed);
}

.footer-bottom-links a:hover {
  color: var(--primary-color);
}

.back-to-top {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  background-color: var(--primary-color);
  color: var(--white-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: background-color var(--transition-speed), color var(--transition-speed), transform var(--transition-speed);
  z-index: 999;
  transform: scale(0.3);
}

@keyframes bounceIn {
  0% {
    transform: scale(0.3) translateY(50px);
    opacity: 0;
  }
  60% {
    transform: scale(1.1) translateY(-10px);
    opacity: 1;
  }
  80% {
    transform: scale(0.9) translateY(5px);
  }
  100% {
    transform: scale(1) translateY(0);
    opacity: 1;
  }
}

@keyframes bounceOut {
  0% {
    transform: scale(1) translateY(0);
    opacity: 1;
  }
  20% {
    transform: scale(0.9) translateY(5px);
  }
  40% {
    transform: scale(1.1) translateY(-10px);
    opacity: 1;
  }
  100% {
    transform: scale(0.3) translateY(50px);
    opacity: 0;
  }
}

.back-to-top.active {
  opacity: 1;
  visibility: visible;
  animation: bounceIn 0.6s ease-out forwards;
}

.back-to-top.bouncing-out {
  animation: bounceOut 0.6s ease-in forwards; 
}

.back-to-top:hover {
  background-color: var(--accent-orange); 
  color: var(--white-color);
}

@media (max-width: 768px) {
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  /* Center all footer content on mobile */
  .footer-logo,
  .footer-links,
  .footer-contact,
  .footer-newsletter {
    margin-bottom: var(--spacing-md);
    text-align: center;
  }
  
  .footer-logo a {
    display: inline-block;
  }
  
  .footer-links ul {
    display: inline-block;
    text-align: center;
  }
  
  .footer-links ul li {
    text-align: center;
  }
  
  .footer-contact p {
    justify-content: center;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .footer-bottom p {
    margin-bottom: var(--spacing-xs);
  }
  
  .footer-bottom-links {
    margin-top: 10px;
  }
  
  .footer-bottom-links a {
    margin: 0 8px;
  }
}


.materials-intro {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--spacing-lg);
}

.materials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
}

.material-card {
  background-color: var(--white-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  box-shadow: var(--box-shadow);
  transition: transform var(--transition-speed), box-shadow var(--transition-speed);
  height: 100%;
  display: flex;
  flex-direction: column;
}

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

.material-icon {
  width: 70px;
  height: 70px;
  background-color: rgba(230, 57, 70, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-sm);
}

.material-icon i {
  font-size: 2rem;
  color: var(--accent-orange);
}

.material-card h3 {
  margin-bottom: var(--spacing-sm);
  color: var(--dark-color);
  text-align: center;
}

.material-card p {
  margin-bottom: var(--spacing-sm);
  color: var(--black-color);
  text-align: center;
}

.material-features {
  margin-top: auto;
  padding-top: var(--spacing-sm);
}

.material-features li {
  display: flex;
  align-items: flex-start;
  margin-bottom: 8px;
  font-size: 0.9rem;
}

.material-features li i {
  color: var(--primary-color);
  margin-right: 10px;
  font-size: 0.9rem;
  margin-top: 5px;
}

@media (max-width: 992px) {
  .materials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 576px) {
  .materials-grid {
    grid-template-columns: 1fr;
  }
}


.contact-form .btn-primary {
  width: 100%;
  padding: 0.9rem 1.5rem; 
  font-size: 1rem; 
}

@media (max-width: 768px) {
  .contact-form .btn-primary {
    padding: 1rem 1.5rem; /* Slightly larger for better touch */
    font-size: 1.05rem; /* Increased for better readability */
  }
}

.contact-form .btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  background-color: var(--medium-gray);
  color: var(--white-color);
  box-shadow: none;
  transform: none;
  border-color: var(--medium-gray);
  pointer-events: none;
}


.contact-form {
  background-color: var(--white-color);
  padding: var(--spacing-lg); 
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow-lg);
  box-sizing: border-box;
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}

@media (max-width: 768px) {
  .contact-form {
    padding: var(--spacing-md);
  }
}


.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000; 
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background-color: var(--white-color);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow-lg);
  width: 90%;
  max-width: 600px;
  max-height: 80vh;
  overflow-y: auto;
  position: relative;
  transform: scale(0.9);
  transition: transform 0.3s ease;
}

.modal-overlay.active .modal-content {
  transform: scale(1);
}

.modal-content h2 {
  margin-top: 0;
  margin-bottom: var(--spacing-md);
  color: var(--dark-color);
}

.modal-content p {
  margin-bottom: var(--spacing-sm);
  line-height: 1.7;
  color: var(--neutral-text-color);
}

.modal-close-btn {
  position: absolute;
  top: 15px;
  right: 20px;
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--neutral-text-color);
  cursor: pointer;
  line-height: 1;
}

.modal-close-btn:hover {
  color: var(--dark-color);
}


body.modal-open {
  overflow: hidden;
}