:root {
  --navy: #0a1929;
  --navy-light: #1a365d;
  --navy-medium: #1e3a5f;
  --navy-dark: #0f2643;
  --green: #10b981;
  --green-dark: #164a2e;
  --yellow: #f59e0b;
  --yellow-dark: #d97706;
  --blue: #1a56db;
  --blue-light: #e8f0fe;
  --white: #ffffff;
  --gray-50: #f9fafb;
  --gray-100: #f0f7ff;
  --gray-200: #e5e7eb;
  --gray-600: #666666;
  --gray-900: #333333;
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
  --transition: all 0.3s ease;
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: var(--gray-900);
  line-height: 1.6;
  background-color: var(--white);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

a {
  text-decoration: none;
}

ul {
  list-style: none;
}

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

/* Header */
header {
  background: var(--white);
  box-shadow: var(--shadow-sm);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  transition: box-shadow 0.3s ease;
}

header.scrolled {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 0;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 15px;
}

.logo-img {
  width: 250px;
  height: 50px;
  border-radius: 8px;
  object-fit: contain;
}

.logo {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--navy);
}

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

.nav-links {
  display: flex;
  gap: 30px;
}

.nav-links a {
  color: var(--gray-900);
  font-weight: 500;
  transition: color 0.3s;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--yellow);
  transition: width 0.3s;
}

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

.nav-links a:hover {
  color: var(--blue);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--navy);
  padding: 5px;
}

/* Hero Section */
.hero {
  margin-top: 80px;
  padding: 100px 0 80px;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 25%, var(--navy-dark) 50%, var(--green-dark) 75%, var(--navy) 100%);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(245, 158, 11, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(16, 185, 129, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 60% 80%, rgba(26, 86, 219, 0.15) 0%, transparent 50%);
  z-index: 1;
}

.hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  z-index: 0;
}

.hero .container {
  position: relative;
  z-index: 2;
}

.hero h1 {
  font-size: 3rem;
  color: var(--white);
  margin-bottom: 20px;
  animation: fadeInUp 0.8s ease-out;
}

.hero h1 span {
  color: var(--yellow);
}

.hero p {
  font-size: 1.25rem;
  color: #bfdbfe;
  max-width: 700px;
  margin: 0 auto 40px;
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-image {
  max-width: 600px;
  width: 100%;
  margin: 40px auto 0;
  border-radius: 16px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
  animation: fadeInUp 0.8s ease-out 0.4s both;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

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

.btn-primary:hover {
  background: var(--yellow-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--white);
  margin-left: 15px;
  border: 2px solid var(--white);
}

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

/* Section Title */
.section-title {
  text-align: center;
  margin-bottom: 60px;
}

.section-title h2 {
  font-size: 2.5rem;
  color: var(--navy);
  margin-bottom: 15px;
  position: relative;
  display: inline-block;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--navy), var(--yellow), var(--green));
  border-radius: 2px;
}

.section-title p {
  color: var(--gray-600);
  font-size: 1.1rem;
  margin-top: 20px;
}

/* Services Section */
.services {
  padding: 80px 0;
  background: var(--white);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
}

.service-card {
  background: var(--white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  border-left: 4px solid transparent;
}

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

.service-card:nth-child(1) { border-left-color: var(--navy-light); }
.service-card:nth-child(2) { border-left-color: var(--green); }
.service-card:nth-child(3) { border-left-color: var(--yellow); }
.service-card:nth-child(4) { border-left-color: var(--navy-light); }
.service-card:nth-child(5) { border-left-color: var(--green); }

.service-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.service-content {
  padding: 25px;
}

.service-card h3 {
  font-size: 1.4rem;
  color: var(--navy);
  margin-bottom: 12px;
}

.service-card p {
  color: var(--gray-600);
  font-size: 1rem;
}

/* Graphic Banner */
.graphic-banner {
  padding: 60px 0;
  background: linear-gradient(135deg, var(--gray-50) 0%, #e8f0fe 50%, #d1fae5 100%);
}

.graphic-container {
  background: var(--white);
  border-radius: 16px;
  padding: 30px;
  box-shadow: var(--shadow-md);
  text-align: center;
}

.banner-graphic {
  max-width: 800px;
  width: 100%;
  margin: 0 auto;
  border-radius: 12px;
}

/* Why Us Section */
.why-us {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-medium) 30%, var(--green-dark) 60%, var(--navy-dark) 100%);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.why-us::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(ellipse at 30% 50%, rgba(245, 158, 11, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse at 70% 30%, rgba(16, 185, 129, 0.1) 0%, transparent 50%);
  z-index: 0;
}

.why-us .container {
  position: relative;
  z-index: 1;
}

.why-us .section-title h2 {
  color: var(--white);
}

.why-us .section-title h2::after {
  background: linear-gradient(90deg, var(--yellow), var(--green), var(--yellow));
}

.why-us .section-title p {
  color: #bfdbfe;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  text-align: center;
  margin-top: 40px;
}

.stat-item {
  padding: 20px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-item h2 {
  font-size: 1.5rem;
  color: var(--yellow);
  margin-bottom: 10px;
}

.stat-item p {
  font-size: 1.1rem;
  color: #bfdbfe;
}

/* Logos Section */
.logos-section {
  margin-top: 60px;
  text-align: center;
}

.logos-section h3 {
  color: var(--white);
  margin-bottom: 30px;
  font-size: 1.3rem;
}

.logos-grid {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
}

.logo-placeholder-lg {
  width: 120px;
  height: 80px;
  background: rgba(255, 255, 255, 0.08);
  border: 2px dashed rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.8rem;
  font-weight: 500;
  transition: var(--transition);
}

.logo-placeholder-lg:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.4);
}

.why-us-image {
  max-width: 800px;
  width: 100%;
  margin: 50px auto 0;
  border-radius: 16px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

/* Technologies Section */
.technologies {
  padding: 80px 0;
  background: linear-gradient(180deg, #f0fdf4 0%, var(--white) 50%, #fef3c7 100%);
}

.tech-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  margin-top: 40px;
}

.tech-badge {
  background: var(--white);
  padding: 15px 25px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  font-weight: 500;
  color: var(--gray-900);
  transition: var(--transition);
}

.tech-badge:hover {
  transform: translateY(-3px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.tech-badge.blue { border-top: 3px solid var(--navy-light); }
.tech-badge.green { border-top: 3px solid var(--green); }
.tech-badge.yellow { border-top: 3px solid var(--yellow); }

/* CTA Banner */
.cta-banner {
  padding: 80px 0;
  background: linear-gradient(90deg, var(--navy) 0%, var(--navy-light) 30%, var(--green-dark) 60%, var(--yellow) 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.05) 0%, transparent 70%);
}

.cta-banner .container {
  position: relative;
  z-index: 1;
}

.cta-banner h2 {
  color: var(--white);
  font-size: 2.2rem;
  margin-bottom: 15px;
}

.cta-banner p {
  color: #bfdbfe;
  font-size: 1.1rem;
  margin-bottom: 30px;
}

/* Contact Section */
.contact {
  padding: 80px 0;
  background: var(--white);
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.contact-info h3 {
  font-size: 1.8rem;
  color: var(--navy);
  margin-bottom: 20px;
}

.contact-info p {
  color: var(--gray-600);
  margin-bottom: 30px;
}

.contact-detail {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 20px;
}

.contact-detail-icon {
  width: 45px;
  height: 45px;
  border-radius: 10px;
  background: var(--blue-light);
  color: var(--navy-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-detail strong {
  color: var(--navy);
  display: block;
  margin-bottom: 3px;
}

.contact-form {
  background: var(--gray-50);
  padding: 40px;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
}

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

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: var(--gray-900);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--gray-200);
  border-radius: 8px;
  font-size: 1rem;
  transition: border-color 0.3s;
  font-family: inherit;
  background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--navy-light);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

/* Footer */
footer {
  background: linear-gradient(135deg, var(--navy) 0%, #1a2940 50%, var(--navy-dark) 100%);
  color: #94a3b8;
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h4 {
  color: var(--white);
  font-size: 1.2rem;
  margin-bottom: 20px;
}

.footer-col p,
.footer-col a {
  color: #94a3b8;
  display: block;
  margin-bottom: 10px;
  transition: color 0.3s;
}

.footer-col a:hover {
  color: var(--yellow);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 20px;
}

.footer-logo-img {
  width: 250px;
  height: 50px;
  border-radius: 10px;
  object-fit: contain;
}

.footer-logo-placeholder {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--navy-light) 0%, var(--navy) 100%);
  border: 2px dashed rgba(245, 158, 11, 0.4);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--yellow);
  font-size: 0.65rem;
  text-align: center;
  font-weight: 500;
}

.footer-logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
}

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

.social-links {
  display: flex;
  gap: 15px;
  margin-top: 20px;
}

.social-link {
  width: 45px;
  height: 45px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  color: #94a3b8;
}

.social-link:hover {
  background: var(--yellow);
  border-color: var(--yellow);
  color: var(--navy);
  transform: translateY(-3px);
}

.social-link svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

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

.footer-bottom-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 15px;
}

.footer-bottom-links a {
  color: #64748b;
  font-size: 0.9rem;
  transition: color 0.3s;
}

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

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

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}