/* 
  Netreach Business Website 
  Premium Dark Theme with Emerald Accents
*/

:root {
  /* Color Palette - Light Theme */
  --color-bg: #f8fafc; /* Slate 50 */
  --color-surface: #ffffff; /* White */
  --color-surface-hover: #f1f5f9; /* Slate 100 */
  --color-border: #e2e8f0; /* Slate 200 */
  
  --color-primary: #00aeed; /* Cyan Blue */
  --color-primary-glow: rgba(0, 174, 237, 0.2);
  --color-primary-hover: #0099d1; /* Darker Cyan Blue */
  
  --color-text-main: #0f172a; /* Slate 900 */
  --color-text-muted: #64748b; /* Slate 500 */
  
  /* Layout */
  --container-width: 1200px;
  --header-height: 80px;
  
  /* Fonts */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-heading: 'Outfit', var(--font-sans);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text-main);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

ul {
  list-style: none;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 2rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
}

h1 {
  font-size: clamp(3rem, 5vw, 5rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1rem;
}

p {
  font-size: 1.125rem;
  color: var(--color-text-muted);
}

.text-gradient {
  background: linear-gradient(135deg, #4dc7f2, #00aeed);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 1.75rem;
  border-radius: 9999px;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 14px 0 var(--color-primary-glow);
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px 0 rgba(0, 174, 237, 0.4);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-text-main);
  border: 1px solid var(--color-border);
}

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

/* Header & Nav */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  transition: all 0.3s ease;
  background: transparent;
}

header.scrolled {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-dot {
  width: 8px;
  height: 8px;
  background-color: var(--color-primary);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--color-primary);
}

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

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color 0.2s ease;
}

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

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--color-text-main);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: var(--header-height);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: radial-gradient(circle at 50% 0%, rgba(0, 174, 237, 0.15), transparent 50%);
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  text-center;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(0, 174, 237, 0.1);
  border: 1px solid rgba(0, 174, 237, 0.2);
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 2rem;
}

.hero p {
  margin: 1.5rem 0 2.5rem;
  font-size: 1.25rem;
  max-width: 600px;
}

.hero-btns {
  display: flex;
  gap: 1rem;
}

/* Section Utility */
.section {
  padding: 8rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
  max-width: 600px;
  margin-inline: auto;
}

/* Services / Features */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 1.5rem;
  padding: 2.5rem;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at top right, rgba(0, 174, 237, 0.1), transparent 70%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: rgba(0, 174, 237, 0.3);
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
}

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

.feature-icon {
  width: 60px;
  height: 60px;
  background: rgba(0, 174, 237, 0.1);
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.feature-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.feature-card p {
  font-size: 1rem;
}

/* How It Works (Steps) */
.steps-container {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  max-width: 800px;
  margin: 0 auto;
}

.step {
  display: flex;
  gap: 2rem;
  background: var(--color-surface);
  padding: 2rem;
  border-radius: 1.5rem;
  border: 1px solid var(--color-border);
}

.step-number {
  flex-shrink: 0;
  width: 50px;
  height: 50px;
  background: var(--color-primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: bold;
  font-family: var(--font-heading);
}

.step-content h3 {
  margin-bottom: 0.5rem;
}

/* CTA Section */
.cta-section {
  background: linear-gradient(135deg, rgba(0, 174, 237, 0.1), rgba(255, 255, 255, 0));
  border-top: 1px solid rgba(0, 174, 237, 0.2);
  border-bottom: 1px solid rgba(0, 174, 237, 0.2);
  text-align: center;
  position: relative;
  overflow: hidden;
}

/* Footer */
footer {
  background: var(--color-surface);
  padding: 4rem 0 2rem;
  border-top: 1px solid var(--color-border);
}

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

.footer-col h4 {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
}

.footer-col p {
  font-size: 1rem;
  margin-bottom: 1rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  color: var(--color-text-muted);
  transition: color 0.2s ease;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background: var(--color-bg);
    flex-direction: column;
    align-items: center;
    padding-top: 2rem;
    gap: 2rem;
    transform: translateX(100%);
    transition: transform 0.3s ease;
  }
  
  .nav-links.active {
    transform: translateX(0);
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .hero-btns {
    flex-direction: column;
    width: 100%;
    max-width: 300px;
  }
  
  .btn {
    width: 100%;
  }
  
  .step {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
    align-items: center;
  }
}