/* Reset */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
  width: 100%;
  font-family: 'Karla', Arial, sans-serif;
  color: #333;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

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

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

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: #fff;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.site-logo img {
  height: 40px;
  width: auto;
}

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

.nav-link {
  font-size: 15px;
  font-weight: 700;
  color: #222;
  transition: color 0.2s;
  padding: 5px 0;
}

.nav-link:hover,
.nav-link.active {
  color: #0d6efd;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #222;
  transition: transform 0.3s, opacity 0.3s;
}

.menu-toggle.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.open span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 28px;
  font-size: 14px;
  font-weight: 700;
  font-family: 'Karla', Arial, sans-serif;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
  border: 2px solid transparent;
}

.btn-primary {
  background: #0d6efd;
  color: #fff;
  border-color: #0d6efd;
}

.btn-primary:hover {
  background: #0b5ed7;
  border-color: #0b5ed7;
}

.btn-outline {
  background: transparent;
  color: #fff;
  border-color: #fff;
}

.btn-outline:hover {
  background: #fff;
  color: #222;
}

/* Sections */
.section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 50px;
}

.section-label {
  display: inline-block;
  font-size: 14px;
  font-weight: 700;
  color: #0d6efd;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 10px;
}

.section-header h2 {
  font-size: 32px;
  color: #222;
  line-height: 1.3;
}

/* Page Header */
.page-header {
  background: #0f1b2d;
  padding: 120px 0 50px;
  text-align: center;
}

.page-header h1 {
  font-size: 36px;
  color: #fff;
}

/* Hero */
.hero {
  background: linear-gradient(135deg, #0f1b2d 0%, #1a3050 100%);
  padding: 160px 0 100px;
  color: #fff;
}

.hero-content {
  max-width: 700px;
}

.hero h1 {
  font-size: 42px;
  line-height: 1.2;
  margin-bottom: 20px;
}

.hero p {
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 30px;
  opacity: 0.9;
}

.hero-actions {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

/* Services Grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 30px;
}

.service-card {
  display: block;
  padding: 30px;
  background: #fff;
  border: 1px solid #e8edf2;
  border-radius: 8px;
  transition: all 0.3s;
}

.service-card:hover {
  border-color: #0d6efd;
  box-shadow: 0 10px 30px rgba(13, 110, 253, 0.1);
  transform: translateY(-3px);
}

.service-card h3 {
  font-size: 20px;
  color: #222;
  margin-bottom: 12px;
}

.service-card p {
  font-size: 14px;
  color: #666;
  line-height: 1.7;
  margin-bottom: 15px;
}

.card-link {
  font-size: 14px;
  font-weight: 700;
  color: #0d6efd;
}

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

.about-content h2 {
  font-size: 32px;
  color: #222;
  margin-bottom: 20px;
  line-height: 1.3;
}

.about-content p {
  font-size: 15px;
  color: #555;
  line-height: 1.8;
  margin-bottom: 20px;
}

.about-image {
  display: flex;
  align-items: center;
  justify-content: center;
}

.experience-badge {
  background: #0d6efd;
  color: #fff;
  padding: 40px;
  border-radius: 12px;
  text-align: center;
  width: 220px;
  height: 220px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.experience-number {
  font-size: 56px;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 8px;
}

.experience-text {
  font-size: 14px;
  opacity: 0.9;
}

/* Check list */
.check-list {
  margin-bottom: 25px;
}

.check-list li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 12px;
  font-size: 15px;
  color: #444;
}

.check-list li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  color: #0d6efd;
  font-weight: 700;
}

/* Arrow list */
.arrow-list li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 12px;
  font-size: 15px;
  color: #444;
}

.arrow-list li::before {
  content: "\2192";
  position: absolute;
  left: 0;
  color: #0d6efd;
  font-weight: 700;
}

/* CTA */
.cta {
  background: #0f1b2d;
  text-align: center;
  color: #fff;
}

.cta h2 {
  font-size: 30px;
  margin-bottom: 15px;
}

.cta p {
  font-size: 16px;
  opacity: 0.8;
  margin-bottom: 25px;
}

/* Service Detail */
.service-intro {
  max-width: 800px;
  margin-bottom: 50px;
}

.service-intro p,
.prose p {
  font-size: 16px;
  line-height: 1.8;
  color: #555;
  margin-bottom: 15px;
}

.service-section {
  margin-bottom: 40px;
}

.service-section h2 {
  font-size: 24px;
  color: #222;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid #e8edf2;
}

.service-section p {
  font-size: 15px;
  line-height: 1.8;
  color: #555;
}

.service-nav {
  margin-top: 60px;
  padding: 30px;
  background: #f8f9fa;
  border-radius: 8px;
}

.service-nav h3 {
  font-size: 18px;
  margin-bottom: 15px;
  color: #222;
}

.service-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.service-nav li a {
  display: block;
  padding: 8px 18px;
  background: #fff;
  border: 1px solid #e8edf2;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 700;
  color: #444;
  transition: all 0.2s;
}

.service-nav li a:hover,
.service-nav li.active a {
  background: #0d6efd;
  color: #fff;
  border-color: #0d6efd;
}

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

.contact-info h2 {
  font-size: 28px;
  color: #222;
  margin-bottom: 30px;
  line-height: 1.3;
}

.contact-item {
  margin-bottom: 25px;
}

.contact-item h4 {
  font-size: 16px;
  color: #222;
  margin-bottom: 5px;
}

.contact-item p {
  font-size: 15px;
  color: #555;
}

.contact-item a {
  color: #0d6efd;
}

.contact-form-wrap h3 {
  font-size: 22px;
  color: #222;
  margin-bottom: 25px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 12px 16px;
  margin-bottom: 15px;
  font-size: 14px;
  font-family: 'Karla', Arial, sans-serif;
  color: #333;
  background: #f8f9fa;
  border: 1px solid #e0e0e0;
  border-radius: 4px;
  outline: none;
  transition: border-color 0.2s;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: #0d6efd;
}

.contact-form textarea {
  resize: vertical;
}

/* Footer */
.site-footer {
  background: #0f1b2d;
  color: #ccc;
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
  height: 35px;
  width: auto;
  margin-bottom: 15px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  opacity: 0.8;
}

.site-footer h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 18px;
}

.site-footer ul li {
  margin-bottom: 10px;
}

.site-footer ul li a {
  font-size: 14px;
  opacity: 0.7;
  transition: opacity 0.2s;
}

.site-footer ul li a:hover {
  opacity: 1;
  color: #0d6efd;
}

.footer-bottom {
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  opacity: 0.6;
}

/* Responsive */
@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  }

  .site-nav.open {
    display: flex;
  }

  .hero {
    padding: 120px 0 60px;
  }

  .hero h1 {
    font-size: 28px;
  }

  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

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

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

  .section {
    padding: 50px 0;
  }

  .page-header {
    padding: 100px 0 40px;
  }

  .page-header h1 {
    font-size: 28px;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 24px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    text-align: center;
  }

  .experience-badge {
    width: 180px;
    height: 180px;
    padding: 30px;
  }

  .experience-number {
    font-size: 42px;
  }
}