/* North Star Consultancy Services - Premium Design */

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&family=Playfair+Display:wght@600;700;800&display=swap');

/* CSS Variables - Premium Color Palette */
:root {
  /* Premium Colors */
  --color-primary: #0F172A;        /* Rich Navy */
  --color-secondary: #14B8A6;      /* Teal */
  --color-accent: #F59E0B;         /* Amber Gold */
  --color-accent-2: #8B5CF6;       /* Purple */
  
  /* Neutrals */
  --color-white: #FFFFFF;
  --color-light: #F8FAFC;
  --color-gray-100: #F1F5F9;
  --color-gray-200: #E2E8F0;
  --color-gray-300: #CBD5E1;
  --color-gray-400: #94A3B8;
  --color-gray-600: #475569;
  --color-gray-700: #334155;
  --color-gray-900: #0F172A;
  --color-text: #1E293B;
  --color-text-light: #64748B;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #0F172A 0%, #1E3A5F 50%, #14B8A6 100%);
  --gradient-accent: linear-gradient(135deg, #14B8A6 0%, #0D9488 100%);
  --gradient-gold: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
  --gradient-purple: linear-gradient(135deg, #8B5CF6 0%, #7C3AED 100%);
  --gradient-hero: linear-gradient(135deg, rgba(15, 23, 42, 0.95) 0%, rgba(30, 58, 95, 0.9) 50%, rgba(20, 184, 166, 0.85) 100%);
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15), 0 10px 10px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px rgba(0, 0, 0, 0.25);
  
  /* Glass Effect */
  --glass-bg: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.2);
  
  /* Typography */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Poppins', -apple-system, sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2.5rem;
  --spacing-xl: 4rem;
  --spacing-2xl: 6rem;
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 30px;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-light);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 600;
}

p {
  margin-bottom: var(--spacing-sm);
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--color-text-light);
}

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-2xl) 0;
  position: relative;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 85px;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primary);
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-main {
  font-size: 1.75rem;
  letter-spacing: -0.02em;
}

.logo-sub {
  font-size: 0.75rem;
  font-family: var(--font-body);
  font-weight: 500;
  color: var(--color-secondary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.nav-menu {
  display: flex;
  gap: var(--spacing-lg);
  list-style: none;
  align-items: center;
}

.nav-menu a {
  font-weight: 500;
  color: var(--color-text);
  position: relative;
  padding: 0.5rem 0;
  font-size: 0.95rem;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-accent);
  transition: var(--transition-base);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
  width: 100%;
}

.nav-cta {
  background: var(--gradient-accent);
  color: white !important;
  padding: 0.75rem 1.5rem !important;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-md);
  transition: var(--transition-base);
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.nav-cta::after {
  display: none;
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}

.mobile-toggle span {
  width: 28px;
  height: 3px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: var(--transition-base);
}

.mobile-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
  transform: translateX(-20px);
}

.mobile-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(8px, -8px);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--gradient-primary);
  color: white;
  position: relative;
  overflow: hidden;
  padding-top: 85px;
}

/* Animated Background */
.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 50%, rgba(20, 184, 166, 0.2) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.2) 0%, transparent 50%),
    radial-gradient(circle at 40% 90%, rgba(245, 158, 11, 0.15) 0%, transparent 50%);
  animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
  0%, 100% { opacity: 1; transform: scale(1) rotate(0deg); }
  50% { opacity: 0.8; transform: scale(1.1) rotate(5deg); }
}

.hero-pattern {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    repeating-linear-gradient(45deg, transparent, transparent 50px, rgba(255,255,255,.03) 50px, rgba(255,255,255,.03) 51px);
  animation: patternMove 20s linear infinite;
}

@keyframes patternMove {
  0% { background-position: 0 0; }
  100% { background-position: 100px 100px; }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  animation: fadeInUp 1s ease;
}

.hero-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  color: white;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  border: 1px solid rgba(255, 255, 255, 0.2);
  animation: fadeInUp 1s ease 0.2s backwards;
}

.hero h1 {
  color: white;
  margin-bottom: var(--spacing-md);
  animation: fadeInUp 1s ease 0.4s backwards;
  text-shadow: 0 2px 20px rgba(0,0,0,0.2);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: var(--spacing-lg);
  max-width: 700px;
  animation: fadeInUp 1s ease 0.6s backwards;
  line-height: 1.8;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  animation: fadeInUp 1s ease 0.8s backwards;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Floating Elements Animation */
.hero-floats {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
  pointer-events: none;
}

.float-item {
  position: absolute;
  width: 3px;
  height: 3px;
  background: rgba(255, 255, 255, 0.5);
  border-radius: 50%;
  animation: float 20s infinite;
}

.float-item:nth-child(1) { left: 10%; animation-delay: 0s; }
.float-item:nth-child(2) { left: 20%; animation-delay: 2s; }
.float-item:nth-child(3) { left: 30%; animation-delay: 4s; }
.float-item:nth-child(4) { left: 40%; animation-delay: 6s; }
.float-item:nth-child(5) { left: 50%; animation-delay: 8s; }
.float-item:nth-child(6) { left: 60%; animation-delay: 10s; }
.float-item:nth-child(7) { left: 70%; animation-delay: 12s; }
.float-item:nth-child(8) { left: 80%; animation-delay: 14s; }
.float-item:nth-child(9) { left: 90%; animation-delay: 16s; }

@keyframes float {
  0% {
    transform: translateY(100vh) scale(0);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateY(-100vh) scale(1);
    opacity: 0;
  }
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 1rem 2rem;
  font-weight: 600;
  font-size: 1rem;
  border-radius: var(--radius-full);
  transition: var(--transition-base);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-gold);
  color: white;
  box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.25);
  border-color: rgba(255, 255, 255, 0.5);
}

.btn-lg {
  padding: 1.25rem 2.5rem;
  font-size: 1.125rem;
}

/* Cards */
.card {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-lg);
  transition: var(--transition-base);
  height: 100%;
  border: 1px solid var(--color-gray-200);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-2xl);
  border-color: var(--color-secondary);
}

.card-icon {
  width: 70px;
  height: 70px;
  background: var(--gradient-accent);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: var(--spacing-md);
  box-shadow: var(--shadow-md);
}

.card h3 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
  font-size: 1.5rem;
}

/* Grid */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Team Section */
.team-member {
  text-align: center;
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-md);
  transition: var(--transition-base);
  border: 1px solid var(--color-gray-200);
}

.team-member:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.team-photo {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  margin: 0 auto var(--spacing-md);
  background: var(--gradient-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: white;
  box-shadow: var(--shadow-lg);
}

.team-name {
  font-size: 1.25rem;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}

.team-role {
  color: var(--color-secondary);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

/* Testimonials */
.testimonial-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-lg);
  position: relative;
  border: 1px solid var(--color-gray-200);
}

.testimonial-quote {
  font-size: 4rem;
  color: var(--color-secondary);
  opacity: 0.3;
  position: absolute;
  top: 20px;
  left: 20px;
  font-family: Georgia, serif;
}

.testimonial-text {
  font-size: 1.125rem;
  font-style: italic;
  color: var(--color-text);
  margin-bottom: var(--spacing-md);
  position: relative;
  z-index: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.testimonial-avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--gradient-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 1.5rem;
}

.testimonial-info h4 {
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}

.testimonial-info p {
  color: var(--color-text-light);
  font-size: 0.9375rem;
  margin: 0;
}

/* Stats */
.stats-section {
  background: var(--gradient-primary);
  color: white;
}

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

.stat-item h2 {
  font-size: 3.5rem;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
  font-family: var(--font-display);
}

.stat-item p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.125rem;
}

/* Contact Form */
.contact-form {
  background: white;
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-gray-200);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--color-primary);
}

.form-control {
  width: 100%;
  padding: 1rem 1.25rem;
  border: 2px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 1rem;
  transition: var(--transition-base);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 4px rgba(20, 184, 166, 0.1);
}

textarea.form-control {
  min-height: 150px;
  resize: vertical;
}

/* Footer */
.footer {
  background: var(--color-primary);
  color: white;
  padding: var(--spacing-xl) 0 var(--spacing-lg);
}

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

.footer h3 {
  color: white;
  margin-bottom: var(--spacing-md);
}

.footer p,
.footer a {
  color: rgba(255, 255, 255, 0.8);
}

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

.footer-links {
  list-style: none;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-md);
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
}

/* Responsive */
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 85px;
    left: -100%;
    flex-direction: column;
    background: white;
    width: 100%;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    transition: var(--transition-base);
    align-items: flex-start;
    height: calc(100vh - 85px);
    overflow-y: auto;
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .mobile-toggle {
    display: flex;
  }
  
  .hero-cta {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
  }
  
  .section {
    padding: var(--spacing-xl) 0;
  }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }
.text-accent { color: var(--color-accent); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }