/* ============================================
   MEVONICS TECHNOLOGIES - MAIN STYLESHEET
   ============================================ */

:root {
  /* Color Scheme */
  --primary-blue: #2563eb;
  --primary-dark: #1e40af;
  --secondary-blue: #3b82f6;
  --accent-orange: #f97316;
  --accent-orange-light: #fca5a5;
  --dark-gray: #1f2937;
  --medium-gray: #6b7280;
  --light-gray: #f3f4f6;
  --lighter-gray: #f9fafb;
  --white: #ffffff;
  --shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.15);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  /* Typography */
  --font-primary: 'Inter', 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-base: 16px;
  --line-height-base: 1.6;
}

/* ============================================
   GLOBAL STYLES
   ============================================ */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

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

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1 {
  font-size: clamp(2.5rem, 8vw, 3.5rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--dark-gray);
  margin-bottom: 1rem;
}

h2 {
  font-size: clamp(1.875rem, 5vw, 2.5rem);
  font-weight: 700;
  line-height: 1.3;
  color: var(--dark-gray);
  margin-bottom: 1rem;
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 700;
  line-height: 1.4;
  color: var(--dark-gray);
  margin-bottom: 0.75rem;
}

h4 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--dark-gray);
  margin-bottom: 0.5rem;
}

p {
  color: var(--medium-gray);
  line-height: 1.8;
  margin-bottom: 1rem;
}

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

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

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.75rem;
  border: 2px solid transparent;
  border-radius: 0.5rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  text-decoration: none;
  gap: 0.5rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
  color: var(--white);
  border: 2px solid var(--primary-blue);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(37, 99, 235, 0.4);
}

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

.btn-secondary:hover {
  background: var(--light-gray);
  transform: translateY(-2px);
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent-orange), #ff8c42);
  color: var(--white);
  border: 2px solid var(--accent-orange);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(249, 115, 22, 0.4);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

/* ============================================
   CONTAINER & LAYOUT
   ============================================ */

.container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
}

.section-small {
  padding: 3rem 0;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title h2 {
  margin-bottom: 0.5rem;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--medium-gray);
  max-width: 600px;
  margin: 0 auto;
}

.grid {
  display: grid;
  gap: 2rem;
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 80px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  z-index: 1000;
  transition: var(--transition);
}

header.scrolled {
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

nav {
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary-blue);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo svg {
  width: 32px;
  height: 32px;
}

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

.nav-link {
  color: var(--dark-gray);
  font-weight: 500;
  position: relative;
  transition: var(--transition);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-blue), var(--accent-orange));
  transition: width 0.3s ease;
}

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

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

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 5px;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: var(--dark-gray);
  border-radius: 2px;
  transition: var(--transition);
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 25%, #f093fb 50%, #4facfe 75%, #00f2fe 100%);
  background-size: 400% 400%;
  animation: gradientShift 15s ease infinite;
  position: relative;
  overflow: hidden;
  margin-top: 80px;
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
              radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
  animation: float 20s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0); }
  25% { transform: translate(20px, -20px); }
  50% { transform: translate(-20px, 20px); }
  75% { transform: translate(20px, 20px); }
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--white);
  animation: fadeInUp 1s ease;
}

.hero h1 {
  color: var(--white);
  font-size: clamp(2.5rem, 10vw, 4rem);
  margin-bottom: 1rem;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.hero .tagline {
  font-size: clamp(1rem, 3vw, 1.5rem);
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.hero .subtitle {
  font-size: clamp(0.875rem, 2vw, 1.25rem);
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 2rem;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.btn-light {
  background: rgba(255, 255, 255, 0.2);
  color: var(--white);
  border: 2px solid var(--white);
  backdrop-filter: blur(10px);
}

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

.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
}

.scroll-mouse {
  width: 24px;
  height: 40px;
  border: 2px solid rgba(255, 255, 255, 0.6);
  border-radius: 12px;
  position: relative;
  animation: scroll-bounce 2s infinite;
}

.scroll-mouse::after {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 8px;
  background: rgba(255, 255, 255, 0.6);
  border-radius: 1px;
  animation: scroll-slide 2s infinite;
}

@keyframes scroll-bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-10px); }
}

@keyframes scroll-slide {
  0%, 100% { opacity: 0; transform: translateX(-50%) translateY(-10px); }
  50% { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ============================================
   ABOUT SECTION
   ============================================ */

.about-section {
  background: var(--lighter-gray);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.about-image {
  position: relative;
  overflow: hidden;
  border-radius: 1rem;
}

.about-image img {
  width: 100%;
  height: auto;
  display: block;
  transition: var(--transition);
}

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

.about-content h2 {
  background: linear-gradient(135deg, var(--primary-blue), var(--accent-orange));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1.5rem;
}

.about-content p {
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.about-list {
  list-style: none;
  margin: 2rem 0;
}

.about-list li {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  font-size: 1rem;
}

.about-list li::before {
  content: '✓';
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
  color: var(--white);
  border-radius: 50%;
  flex-shrink: 0;
  font-weight: bold;
}

/* ============================================
   SERVICES SECTION
   ============================================ */

.services-section {
  background: var(--white);
}

.service-card {
  background: var(--white);
  border-radius: 1rem;
  padding: 2rem;
  box-shadow: var(--shadow);
  transition: var(--transition);
  text-align: center;
  border-top: 4px solid var(--primary-blue);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.05), rgba(249, 115, 22, 0.05));
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: -1;
}

.service-card:hover::before {
  opacity: 1;
}

.service-card:nth-child(2) {
  border-top-color: var(--accent-orange);
}

.service-card:nth-child(3) {
  border-top-color: #10b981;
}

.service-card:nth-child(4) {
  border-top-color: #8b5cf6;
}

.service-card:nth-child(5) {
  border-top-color: #f59e0b;
}

.service-card:nth-child(6) {
  border-top-color: #ec4899;
}

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

.service-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
  border-radius: 50%;
  color: var(--white);
  animation: float-icon 3s ease-in-out infinite;
}

@keyframes float-icon {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.service-card h3 {
  margin-bottom: 1rem;
}

.service-card p {
  margin-bottom: 1.5rem;
  color: var(--medium-gray);
}

.service-card .btn {
  margin-top: 1rem;
}

/* ============================================
   PRODUCTS SECTION
   ============================================ */

.products-section {
  background: var(--lighter-gray);
}

.product-card {
  background: var(--white);
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.product-image {
  width: 100%;
  height: 250px;
  overflow: hidden;
  background: linear-gradient(135deg, #667eea, #764ba2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 3rem;
  position: relative;
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.product-card:hover .product-image img {
  transform: scale(1.1);
}

.product-info {
  padding: 1.5rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.product-info h3 {
  margin-bottom: 0.5rem;
}

.product-info p {
  margin-bottom: 1rem;
  flex-grow: 1;
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

/* ============================================
   STATS SECTION
   ============================================ */

.stats-section {
  background: linear-gradient(135deg, var(--primary-blue), var(--primary-dark));
  color: var(--white);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  text-align: center;
}

.stat-item {
  animation: fadeInUp 0.6s ease;
}

.stat-number {
  font-size: clamp(2rem, 8vw, 3.5rem);
  font-weight: 800;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, #fca5a5, #fcd34d);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.9);
}

/* ============================================
   INTERNSHIP SECTION
   ============================================ */

.internship-section {
  background: var(--white);
}

.internship-card {
  background: var(--lighter-gray);
  border-radius: 1rem;
  padding: 2rem;
  transition: var(--transition);
  position: relative;
}

.internship-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-blue), var(--accent-orange));
  border-radius: 1rem 1rem 0 0;
}

.internship-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  background: var(--white);
}

.internship-duration {
  display: inline-block;
  background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
  color: var(--white);
  padding: 0.5rem 1rem;
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.internship-details {
  margin: 1.5rem 0;
  list-style: none;
}

.internship-details li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  color: var(--medium-gray);
}

.internship-details li::before {
  content: '→';
  color: var(--primary-blue);
  font-weight: bold;
}

.stipend-badge {
  background: linear-gradient(135deg, var(--accent-orange), #ff8c42);
  color: var(--white);
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 600;
  display: inline-block;
  margin-top: 1rem;
}

/* ============================================
   CONTACT SECTION
   ============================================ */

.contact-section {
  background: linear-gradient(135deg, var(--primary-blue), var(--primary-dark));
  color: var(--white);
}

.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.contact-info h2 {
  color: var(--white);
  margin-bottom: 2rem;
}

.contact-item {
  margin-bottom: 2rem;
}

.contact-item h4 {
  color: var(--white);
  margin-bottom: 0.5rem;
}

.contact-item p {
  color: rgba(255, 255, 255, 0.9);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group label {
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--white);
}

.form-group input,
.form-group textarea,
.form-group select {
  padding: 0.75rem 1rem;
  border: none;
  border-radius: 0.5rem;
  font-family: var(--font-primary);
  font-size: 1rem;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.form-group textarea {
  resize: vertical;
  min-height: 150px;
}

/* ============================================
   FOOTER
   ============================================ */

footer {
  background: var(--dark-gray);
  color: var(--white);
  padding: 3rem 0 1rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-column h4 {
  color: var(--white);
  margin-bottom: 1rem;
}

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

.footer-column ul li {
  margin-bottom: 0.5rem;
}

.footer-column a {
  color: rgba(255, 255, 255, 0.7);
  transition: var(--transition);
}

.footer-column a:hover {
  color: var(--primary-blue);
}

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  font-size: 1.2rem;
  transition: var(--transition);
}

.social-links a:hover {
  background: var(--primary-blue);
  transform: translateY(-3px);
}

.newsletter-form {
  display: flex;
  gap: 0.5rem;
}

.newsletter-form input {
  flex: 1;
  padding: 0.75rem 1rem;
  border: none;
  border-radius: 0.5rem;
  font-family: var(--font-primary);
}

.newsletter-form button {
  padding: 0.75rem 1.5rem;
  background: var(--primary-blue);
  color: var(--white);
  border: none;
  border-radius: 0.5rem;
  cursor: pointer;
  font-weight: 600;
  transition: var(--transition);
}

.newsletter-form button:hover {
  background: var(--primary-dark);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.7);
}

/* ============================================
   ANIMATIONS (AOS - Animate On Scroll)
   ============================================ */

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

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

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

@keyframes slideIn {
  from {
    transform: translateY(50px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes zoomIn {
  from {
    transform: scale(0.95);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

.aos-slide-up {
  animation: fadeInUp 0.8s ease forwards;
}

.aos-slide-left {
  animation: fadeInLeft 0.8s ease forwards;
}

.aos-slide-right {
  animation: fadeInRight 0.8s ease forwards;
}

.aos-zoom {
  animation: zoomIn 0.8s ease forwards;
}

/* ============================================
   BACK TO TOP BUTTON
   ============================================ */

.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
  color: var(--white);
  border: none;
  border-radius: 50%;
  font-size: 1.5rem;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
  z-index: 999;
}

.back-to-top:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.back-to-top.show {
  display: flex;
  animation: slideUp 0.3s ease;
}

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

/* ============================================
   LOADING SCREEN
   ============================================ */

.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--primary-blue), var(--primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 1;
  transition: opacity 0.5s ease;
}

.loading-screen.hide {
  opacity: 0;
  pointer-events: none;
}

.loader {
  width: 60px;
  height: 60px;
  border: 4px solid rgba(255, 255, 255, 0.3);
  border-top: 4px solid var(--white);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

.loader-text {
  position: absolute;
  bottom: 2rem;
  color: var(--white);
  font-weight: 600;
  font-size: 1.1rem;
}

/* ============================================
   MOBILE MENU
   ============================================ */

.mobile-menu {
  position: fixed;
  top: 80px;
  left: 0;
  right: 0;
  background: var(--white);
  padding: 0;
  display: none;
  flex-direction: column;
  z-index: 999;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  max-height: calc(100vh - 80px);
  overflow-y: auto;
}

.mobile-menu.active {
  display: flex;
}

.mobile-menu .nav-link {
  font-size: 1rem;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--light-gray);
  display: block;
  width: 100%;
  text-align: left;
  color: var(--dark-gray);
  transition: var(--transition);
}

.mobile-menu .nav-link:hover {
  background-color: var(--light-gray);
  color: var(--primary-blue);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

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

  .nav-menu {
    display: none;
  }

  .about-grid,
  .contact-container {
    grid-template-columns: 1fr;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 300px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .section {
    padding: 3rem 0;
  }

  .hero {
    margin-top: 80px;
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }

  .nav-menu {
    gap: 1rem;
  }

  .hero h1 {
    font-size: 1.75rem;
  }

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

  .hero .subtitle {
    font-size: 0.875rem;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .service-card,
  .product-card,
  .internship-card {
    padding: 1.5rem;
  }

  .section-title {
    margin-bottom: 2rem;
  }

  h2 {
    font-size: 1.25rem;
  }

  .back-to-top {
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
    bottom: 1rem;
    right: 1rem;
  }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

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

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

.bg-gradient {
  background: linear-gradient(135deg, var(--primary-blue), var(--accent-orange));
}

.mb-0 {
  margin-bottom: 0 !important;
}

.mt-0 {
  margin-top: 0 !important;
}

.no-scroll {
  overflow: hidden;
}

.hidden {
  display: none !important;
}

.visible {
  display: block !important;
}

.transition-all {
  transition: var(--transition);
}