:root {
  --color-primary: #18181b; /* Rich Charcoal/Almost Black */
  --color-primary-light: #27272a;
  --color-accent: #10b981; /* Crisp Emerald Green */
  --color-accent-hover: #059669;
  --color-bg-light: #fafafa;
  --color-bg-white: #ffffff;
  --color-text-main: #3f3f46;
  --color-text-muted: #71717a;
  --color-text-light: #f4f4f5;
  --font-main: 'Inter', system-ui, -apple-system, sans-serif;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

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

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

body {
  font-family: var(--font-main);
  color: var(--color-text-main);
  background-color: var(--color-bg-light);
  line-height: 1.7;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--color-primary);
  font-weight: 700;
  line-height: 1.2;
}

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 1000;
  border-bottom: 1px solid rgba(226, 232, 240, 0.6);
  transition: var(--transition);
}
.header.scrolled {
  background-color: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-sm);
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.5px;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
}

.nav-link {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

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

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--color-primary);
  cursor: pointer;
  padding: 0.5rem;
}

.mobile-menu-btn svg {
  width: 24px;
  height: 24px;
}

/* Hero Section */
.hero {
  padding: 200px 0 140px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: var(--color-text-light);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(circle at 15% 50%, rgba(16, 185, 129, 0.08), transparent 25%),
                    radial-gradient(circle at 85% 30%, rgba(16, 185, 129, 0.08), transparent 25%);
  z-index: 1;
}

.hero-content {
  max-width: 850px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.hero h1 {
  color: var(--color-bg-white);
  font-size: 4rem;
  margin-bottom: 1.5rem;
  letter-spacing: -1.5px;
  line-height: 1.1;
  background: linear-gradient(to right, #ffffff, #d4d4d8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.25rem;
  color: #a1a1aa;
  margin-bottom: 2.5rem;
  max-width: 650px;
  margin-left: auto;
  margin-right: auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2.5rem;
  background-color: var(--color-accent);
  color: white;
  font-weight: 600;
  font-size: 1.1rem;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 14px 0 rgba(16, 185, 129, 0.39);
  transition: var(--transition);
}

.btn:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.5);
}

/* Sections General */
.section {
  padding: 100px 0;
}

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

.section-header {
  text-align: center;
  margin-bottom: 4rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  letter-spacing: -0.5px;
}

.section-subtitle {
  color: var(--color-text-muted);
  font-size: 1.1rem;
}

/* Services Section */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.service-card {
  background: var(--color-bg-white);
  padding: 3rem 2.5rem;
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(226, 232, 240, 0.8);
  transition: var(--transition);
  height: 100%;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(16, 185, 129, 0.2);
}

.service-icon {
  width: 64px;
  height: 64px;
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--color-accent);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.75rem;
  transition: var(--transition);
}

.service-card:hover .service-icon {
  background-color: var(--color-accent);
  color: white;
  transform: scale(1.1);
}

.service-icon svg {
  width: 32px;
  height: 32px;
}

.service-card h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.service-card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* Contact Section */
.contact-container {
  max-width: 600px;
  margin: 0 auto;
  background: var(--color-bg-white);
  padding: 3rem;
  border-radius: 12px;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
  border: 1px solid #e2e8f0;
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-weight: 600;
  color: var(--color-primary);
  font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
  padding: 0.75rem 1rem;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  font-family: var(--font-main);
  font-size: 1rem;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.btn-full {
  width: 100%;
  margin-top: 0.5rem;
}

/* Legal Content Area */
.legal-content {
  max-width: 800px;
  margin: 0 auto;
  background: var(--color-bg-white);
  padding: 3.5rem;
  border-radius: 12px;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
  border: 1px solid #e2e8f0;
}

.legal-content h3 {
  font-size: 1.5rem;
  margin: 2rem 0 1rem;
  color: var(--color-primary);
}

.legal-content h3:first-child {
  margin-top: 0;
}

.legal-content p, .legal-content li {
  margin-bottom: 1.25rem;
  color: var(--color-text-main);
}

.legal-content strong {
  color: var(--color-primary);
  font-weight: 600;
}

/* Footer */
.footer {
  background-color: var(--color-primary);
  color: var(--color-text-light);
  padding: 6rem 0 3rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 4rem;
}

.footer-col h4 {
  color: var(--color-bg-white);
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
}

.footer-col p, .footer-col ul {
  color: #94a3b8;
  margin-bottom: 1rem;
}

.footer-col li {
  margin-bottom: 0.75rem;
}

.footer-col a {
  color: #94a3b8;
}

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

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.25rem;
  color: #94a3b8;
}

.footer-contact-item svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-top: 0.25rem;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: #64748b;
  font-size: 0.9rem;
}

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

.social-links a {
  color: #94a3b8;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.05);
  transition: var(--transition);
}

.social-links a svg {
  width: 20px;
  height: 20px;
}

.social-links a:hover {
  color: var(--color-bg-white);
  background-color: var(--color-accent);
  transform: translateY(-2px);
}

/* Scroll Reveal Animations */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.reveal.fade-left {
  transform: translateX(-50px);
}
.reveal.fade-right {
  transform: translateX(50px);
}
.reveal.fade-left.active, .reveal.fade-right.active {
  transform: translateX(0);
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    border-top: 1px solid #f1f5f9;
  }

  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .nav-links li {
    text-align: center;
  }

  .mobile-menu-btn {
    display: block;
  }

  .hero {
    padding: 140px 0 80px;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .section {
    padding: 80px 0;
  }

  .section-title {
    font-size: 2rem;
  }

  .legal-content {
    padding: 2rem;
  }
}