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

:root {
  --blue-900: #0c2340;
  --blue-800: #0f2d52;
  --blue-700: #163d6b;
  --blue-600: #1e5090;
  --blue-500: #2563b0;
  --blue-400: #4a8ad4;
  --blue-100: #dbeafe;
  --blue-50: #eff6ff;
  --orange-500: #e87722;
  --orange-600: #d16a1c;
  --orange-400: #f09344;
  --orange-100: #fff3e6;
  --gray-900: #111827;
  --gray-800: #1f2937;
  --gray-700: #374151;
  --gray-600: #4b5563;
  --gray-500: #6b7280;
  --gray-400: #9ca3af;
  --gray-300: #d1d5db;
  --gray-200: #e5e7eb;
  --gray-100: #f3f4f6;
  --gray-50: #f9fafb;
  --white: #ffffff;
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.06);
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
  --font: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --transition: 0.2s ease;
}

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

body {
  font-family: var(--font);
  color: var(--gray-800);
  line-height: 1.6;
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font);
  font-weight: 600;
  font-size: 0.938rem;
  border: 2px solid transparent;
  border-radius: var(--radius);
  padding: 10px 22px;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 14px 30px;
  font-size: 1rem;
}

.btn-full {
  width: 100%;
  justify-content: center;
}

.btn-primary {
  background: var(--orange-500);
  color: var(--white);
  border-color: var(--orange-500);
}

.btn-primary:hover {
  background: var(--orange-600);
  border-color: var(--orange-600);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(232, 119, 34, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--blue-900);
  border-color: var(--blue-900);
}

.btn-outline:hover {
  background: var(--blue-900);
  color: var(--white);
}

.btn-white {
  background: var(--white);
  color: var(--blue-900);
  border-color: var(--white);
}

.btn-white:hover {
  background: var(--gray-100);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.btn-outline-white {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.4);
}

.btn-outline-white:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--white);
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: all 0.3s ease;
}

.nav.scrolled {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
  padding: 10px 0;
  box-shadow: var(--shadow-sm);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  color: var(--blue-900);
}

.logo-icon {
  width: 36px;
  height: 36px;
  color: var(--orange-500);
}

.logo span {
  font-weight: 400;
  letter-spacing: -0.01em;
}

.logo strong {
  font-weight: 700;
}

.nav:not(.scrolled) .logo {
  color: var(--white);
}

.nav:not(.scrolled) .logo-icon {
  color: var(--orange-400);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 0.938rem;
  font-weight: 500;
  transition: color var(--transition);
}

.nav:not(.scrolled) .nav-links a {
  color: rgba(255,255,255,0.85);
}

.nav:not(.scrolled) .nav-links a:hover {
  color: var(--white);
}

.nav.scrolled .nav-links a {
  color: var(--gray-700);
}

.nav.scrolled .nav-links a:hover {
  color: var(--blue-600);
}

.nav-links .btn {
  color: var(--white);
  background: var(--orange-500);
  border-color: var(--orange-500);
}

.nav-links .btn:hover {
  background: var(--orange-600);
  border-color: var(--orange-600);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--blue-900);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.nav:not(.scrolled) .nav-toggle span {
  background: var(--white);
}

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

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

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

/* ===== Hero ===== */
.hero {
  background: linear-gradient(135deg, var(--blue-900) 0%, var(--blue-700) 50%, var(--blue-600) 100%);
  padding: 140px 0 100px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 600px 400px at 20% 80%, rgba(232,119,34,0.08) 0%, transparent 70%),
    radial-gradient(ellipse 500px 500px at 80% 20%, rgba(37,99,176,0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(to top, var(--white), transparent);
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-tag {
  display: inline-block;
  background: rgba(255,255,255,0.1);
  color: var(--orange-400);
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 20px;
  border: 1px solid rgba(255,255,255,0.08);
}

.hero h1 {
  font-size: 3.25rem;
  font-weight: 800;
  line-height: 1.15;
  color: var(--white);
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.text-accent {
  color: var(--orange-400);
}

.hero-sub {
  font-size: 1.125rem;
  color: rgba(255,255,255,0.7);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 540px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.hero-trust {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.6);
}

.trust-item svg {
  color: var(--orange-400);
  flex-shrink: 0;
}

.hero-visual {
  display: flex;
  justify-content: center;
}

.hero-card {
  background: rgba(255,255,255,0.07);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  text-align: center;
  color: var(--white);
}

.hero-card-icon {
  margin-bottom: 16px;
  color: var(--orange-400);
}

.hero-card h3 {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.hero-card p {
  color: rgba(255,255,255,0.65);
  font-size: 0.938rem;
  margin-bottom: 24px;
  line-height: 1.6;
}

.hero-card .btn {
  width: 100%;
  justify-content: center;
}

/* ===== Section Utilities ===== */
.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 56px;
}

.section-tag {
  display: inline-block;
  color: var(--orange-500);
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.section-header h2,
.about-content h2,
.contact-info h2 {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--gray-900);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  line-height: 1.2;
}

.section-sub {
  color: var(--gray-500);
  font-size: 1.063rem;
  line-height: 1.7;
}

/* ===== Services ===== */
.services {
  padding: 100px 0;
  background: var(--gray-50);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  border: 1px solid var(--gray-200);
  transition: all 0.3s ease;
}

.service-card:hover {
  border-color: var(--blue-400);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.service-icon {
  width: 52px;
  height: 52px;
  background: var(--blue-50);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--blue-600);
}

.service-icon svg {
  width: 26px;
  height: 26px;
}

.service-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 10px;
}

.service-card p {
  color: var(--gray-500);
  font-size: 0.938rem;
  line-height: 1.65;
}

/* ===== About ===== */
.about {
  padding: 100px 0;
}

.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.about-content .section-tag {
  display: block;
}

.about-content p {
  color: var(--gray-600);
  font-size: 1.063rem;
  line-height: 1.7;
  margin-bottom: 36px;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.stat {
  text-align: center;
  padding: 20px 8px;
  background: var(--gray-50);
  border-radius: var(--radius);
}

.stat-number {
  display: block;
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--blue-600);
  letter-spacing: -0.02em;
}

.stat-label {
  display: block;
  font-size: 0.8rem;
  color: var(--gray-500);
  margin-top: 4px;
}

.about-features {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.feature {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.feature-icon {
  width: 40px;
  height: 40px;
  background: var(--orange-100);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--orange-500);
}

.feature h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 4px;
}

.feature p {
  color: var(--gray-500);
  font-size: 0.938rem;
  line-height: 1.5;
}

/* ===== Testimonials ===== */
.testimonials {
  padding: 100px 0;
  background: var(--gray-50);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  border: 1px solid var(--gray-200);
}

.stars {
  color: var(--orange-500);
  font-size: 1.125rem;
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.testimonial-card > p {
  color: var(--gray-700);
  font-size: 0.938rem;
  line-height: 1.7;
  margin-bottom: 24px;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.author-avatar {
  width: 42px;
  height: 42px;
  background: var(--blue-100);
  color: var(--blue-600);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.875rem;
}

.testimonial-author strong {
  display: block;
  font-size: 0.938rem;
  color: var(--gray-900);
}

.testimonial-author span {
  font-size: 0.813rem;
  color: var(--gray-400);
}

/* ===== CTA ===== */
.cta {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--blue-900) 0%, var(--blue-700) 100%);
  text-align: center;
}

.cta h2 {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.cta p {
  color: rgba(255,255,255,0.65);
  font-size: 1.063rem;
  margin-bottom: 32px;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== Contact ===== */
.contact {
  padding: 100px 0;
}

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.contact-info .section-tag {
  display: block;
}

.contact-info > p {
  color: var(--gray-600);
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 32px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.contact-item svg {
  color: var(--blue-600);
  margin-top: 2px;
  flex-shrink: 0;
}

.contact-item strong {
  display: block;
  font-size: 0.875rem;
  color: var(--gray-900);
  margin-bottom: 2px;
}

.contact-item a,
.contact-item span {
  font-size: 0.938rem;
  color: var(--gray-500);
}

.contact-item a:hover {
  color: var(--blue-600);
}

/* Form */
.contact-form {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  font-family: var(--font);
  font-size: 0.938rem;
  color: var(--gray-800);
  background: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
}

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%236b7280' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--blue-500);
  box-shadow: 0 0 0 3px rgba(37,99,176,0.12);
}

.form-group textarea {
  resize: vertical;
}

/* ===== Footer ===== */
.footer {
  background: var(--gray-900);
  padding: 64px 0 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}

.footer-brand .logo {
  color: var(--white);
  margin-bottom: 16px;
}

.footer-brand .logo-icon {
  color: var(--orange-400);
}

.footer-brand > p {
  color: var(--gray-400);
  font-size: 0.938rem;
  line-height: 1.6;
  max-width: 300px;
}

.footer-links h4 {
  color: var(--white);
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}

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

.footer-links a {
  color: var(--gray-400);
  font-size: 0.938rem;
  transition: color var(--transition);
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 24px;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.footer-bottom p {
  font-size: 0.813rem;
  color: var(--gray-500);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    display: none;
  }

  .hero h1 {
    font-size: 2.75rem;
  }

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

  .about-inner,
  .contact-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .stats {
    grid-template-columns: repeat(4, 1fr);
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

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

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 16px 24px 24px;
    gap: 0;
    border-bottom: 1px solid var(--gray-200);
    box-shadow: var(--shadow-md);
  }

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

  .nav-links li {
    width: 100%;
  }

  .nav-links a {
    display: block;
    padding: 12px 0;
    color: var(--gray-700) !important;
    border-bottom: 1px solid var(--gray-100);
  }

  .nav-links .btn {
    margin-top: 8px;
    text-align: center;
    color: var(--white) !important;
    border-bottom: none;
  }

  .hero {
    padding: 120px 0 80px;
  }

  .hero h1 {
    font-size: 2.25rem;
  }

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

  .hero-trust {
    flex-direction: column;
    gap: 12px;
  }

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

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

  .form-row {
    grid-template-columns: 1fr;
  }

  .section-header h2,
  .about-content h2,
  .contact-info h2 {
    font-size: 1.75rem;
  }

  .cta h2 {
    font-size: 1.75rem;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.875rem;
  }

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

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .cta-actions {
    flex-direction: column;
    align-items: center;
  }

  .cta-actions .btn {
    width: 100%;
  }
}