:root {
  /* Colors - Premium Palette */
  --color-primary: #0A192F; /* Deep Royal Navy */
  --color-primary-light: #112240;
  --color-secondary: #233554;
  --color-accent: #0070F3; /* Sharp Electric Blue */
  --color-accent-hover: #0056b3;
  --color-gold: #D4AF37; /* Premium Gold Accent */
  --color-success: #00C853;
  
  --color-text-main: #334155;
  --color-text-muted: #64748B;
  --color-text-light: #F8FAFC;
  
  --color-bg-light: #F8FAFC;
  --color-bg-white: #FFFFFF;
  --color-bg-gray: #F1F5F9;
  
  --color-border: #E2E8F0;

  /* Typography */
  --font-heading: 'Outfit', 'Inter', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  
  /* Transitions & Shadows */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
  --shadow-md: 0 10px 30px -10px rgba(10, 25, 47, 0.1);
  --shadow-lg: 0 20px 40px -15px rgba(10, 25, 47, 0.15);
  --shadow-hover: 0 30px 60px -15px rgba(0, 112, 243, 0.15);
  
  /* Layout */
  --container-max-width: 1280px;
  --nav-height: 90px;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-family: var(--font-body); color: var(--color-text-main); background-color: var(--color-bg-light); line-height: 1.7; scroll-behavior: smooth; font-size: 16px; }
body { overflow-x: hidden; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); color: var(--color-primary); font-weight: 700; line-height: 1.2; letter-spacing: -0.02em; }
p { margin-bottom: 1.5rem; }
a { text-decoration: none; color: inherit; transition: all var(--transition-fast); }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; border-radius: 4px; }

.container { max-width: var(--container-max-width); margin: 0 auto; padding: 0 2rem; position: relative; }
.text-center { text-align: center; }
.mb-1 { margin-bottom: 0.5rem; } .mb-2 { margin-bottom: 1rem; } .mb-3 { margin-bottom: 1.5rem; } .mb-4 { margin-bottom: 2rem; } .mb-5 { margin-bottom: 4rem; }
.mt-2 { margin-top: 1rem; } .mt-4 { margin-top: 2rem; } .mt-5 { margin-top: 4rem; }
.section-padding { padding: 7rem 0; position: relative; }
.text-accent { color: var(--color-accent); }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; font-weight: 600; padding: 1rem 2.5rem; border-radius: 4px; border: 2px solid transparent; cursor: pointer; transition: all var(--transition-normal); font-family: var(--font-heading); font-size: 1rem; letter-spacing: 0.5px; text-transform: uppercase; }
.btn-primary { background-color: var(--color-accent); color: var(--color-bg-white); box-shadow: 0 4px 14px 0 rgba(0, 112, 243, 0.39); }
.btn-primary:hover { background-color: var(--color-accent-hover); transform: translateY(-3px); box-shadow: 0 6px 20px rgba(0, 112, 243, 0.5); color: white; }
.btn-outline { background-color: transparent; color: var(--color-primary); border-color: var(--color-primary); }
.btn-outline:hover { background-color: var(--color-primary); color: var(--color-text-light); transform: translateY(-3px); }

/* Header & Navigation */
.site-header { position: fixed; top: 0; width: 100%; height: var(--nav-height); background: rgba(255, 255, 255, 0.98); backdrop-filter: blur(20px); box-shadow: var(--shadow-sm); z-index: 1000; transition: all var(--transition-normal); border-bottom: 1px solid var(--color-border); }
.site-header .container { display: flex; justify-content: space-between; align-items: center; height: 100%; }
.logo span.logo-text { font-family: var(--font-heading); font-size: 2rem; font-weight: 800; color: var(--color-primary); letter-spacing: -1px; display: flex; align-items: center; }
.logo span.logo-dot { color: var(--color-accent); font-size: 2.5rem; line-height: 0; margin-left: 2px; }
.nav-menu { display: flex; gap: 3rem; align-items: center; }
.nav-menu a { font-weight: 600; color: var(--color-text-main); font-size: 0.95rem; text-transform: uppercase; letter-spacing: 1px; position: relative; padding: 0.5rem 0; }
.nav-menu a::after { content: ''; position: absolute; width: 0; height: 2px; bottom: 0; left: 0; background-color: var(--color-accent); transition: width var(--transition-normal); }
.nav-menu a:hover::after, .nav-menu a.active::after { width: 100%; }
.nav-menu a:hover, .nav-menu a.active { color: var(--color-primary); }
.mobile-toggle { display: none; cursor: pointer; font-size: 1.5rem; color: var(--color-primary); }

/* Page Hero */
.page-hero { padding-top: calc(var(--nav-height) + 6rem); padding-bottom: 6rem; background: var(--color-primary); position: relative; overflow: hidden; }
.page-hero::before { content: ''; position: absolute; top: 0; right: 0; width: 50%; height: 100%; background: linear-gradient(90deg, transparent, rgba(0, 112, 243, 0.1)); pointer-events: none; }
.page-hero .container { position: relative; z-index: 2; text-align: center; }
.page-hero h1 { color: var(--color-text-light); font-size: 4rem; margin-bottom: 1.5rem; font-weight: 800; letter-spacing: -2px; }
.page-hero p { color: #8892B0; font-size: 1.25rem; max-width: 700px; margin: 0 auto; line-height: 1.8; }

/* Premium Section Headers */
.section-header { text-align: center; margin-bottom: 5rem; position: relative; }
.section-subtitle { display: inline-block; color: var(--color-accent); font-family: var(--font-heading); font-weight: 700; text-transform: uppercase; letter-spacing: 2px; font-size: 0.875rem; margin-bottom: 1rem; position: relative; padding: 0 40px; }
.section-subtitle::before, .section-subtitle::after { content: ''; position: absolute; top: 50%; width: 30px; height: 2px; background: var(--color-accent); }
.section-subtitle::before { left: 0; } .section-subtitle::after { right: 0; }
.section-header h2 { font-size: 3rem; color: var(--color-primary); font-weight: 800; }

/* Premium Cards */
.card-premium { background: var(--color-bg-white); border-radius: 16px; padding: 3rem; box-shadow: var(--shadow-md); transition: all var(--transition-normal); border: 1px solid rgba(226, 232, 240, 0.6); position: relative; overflow: hidden; z-index: 1; }
.card-premium::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 4px; background: var(--color-accent); transform: scaleX(0); transform-origin: left; transition: transform var(--transition-normal); z-index: -1; }
.card-premium:hover { transform: translateY(-10px); box-shadow: var(--shadow-hover); border-color: transparent; }
.card-premium:hover::before { transform: scaleX(1); }

/* Decorative Elements */
.bg-shape { position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.4; z-index: 0; pointer-events: none; }
.bg-shape.blue { background: var(--color-accent); width: 400px; height: 400px; top: -100px; right: -100px; }
.bg-shape.gray { background: var(--color-secondary); width: 500px; height: 500px; bottom: -200px; left: -200px; }

/* Animations */
.fade-up { opacity: 0; transform: translateY(40px); transition: opacity 1s cubic-bezier(0.2, 0.8, 0.2, 1), transform 1s cubic-bezier(0.2, 0.8, 0.2, 1); }
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* Footer */
.site-footer { background-color: var(--color-primary-light); color: #8892B0; padding: 6rem 0 2rem; border-top: 4px solid var(--color-accent); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1.5fr; gap: 4rem; margin-bottom: 4rem; }
.footer-col h3 { color: var(--color-text-light); font-size: 1.25rem; margin-bottom: 2rem; position: relative; font-weight: 600; letter-spacing: 1px; }
.footer-col p { line-height: 1.8; margin-bottom: 1rem; }
.footer-links li { margin-bottom: 1rem; }
.footer-links a { color: #8892B0; font-weight: 500; display: inline-block; transition: all var(--transition-fast); }
.footer-links a:hover { color: var(--color-accent); transform: translateX(5px); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 2rem; border-top: 1px solid rgba(255, 255, 255, 0.05); font-size: 0.875rem; letter-spacing: 0.5px; }

/* Shared Grid Layouts */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2.5rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; }

/* Responsive */
@media (max-width: 1024px) {
  .page-hero h1 { font-size: 3rem; }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root { --nav-height: 70px; }

  /* Nav */
  .nav-menu { display: none; position: absolute; top: var(--nav-height); left: 0; width: 100%; background: var(--color-bg-white); flex-direction: column; padding: 1.5rem 0; box-shadow: var(--shadow-md); border-top: 1px solid var(--color-border); gap: 0; }
  .nav-menu.active { display: flex; }
  .nav-menu a { padding: 1rem 2rem; border-bottom: 1px solid var(--color-border); width: 100%; }
  .nav-menu a::after { display: none; }
  .mobile-toggle { display: block; }

  /* Grids */
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; gap: 1.5rem; }
  
  /* Footer */
  .footer-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .footer-bottom { flex-direction: column; gap: 0.75rem; text-align: center; }
  .site-footer { padding: 4rem 0 2rem; }

  /* Typography */
  .section-header h2 { font-size: 2rem; }
  .page-hero h1 { font-size: 2rem; letter-spacing: -1px; }
  .page-hero p { font-size: 1rem; }
  .page-hero { padding-top: calc(var(--nav-height) + 3rem); padding-bottom: 3rem; }

  /* Section Spacing */
  .section-padding { padding: 3.5rem 0; }
  .section-header { margin-bottom: 3rem; }
  .container { padding: 0 1.25rem; }

  /* Cards */
  .card-premium { padding: 2rem; }
  .card-premium:hover { transform: none; }

  /* Buttons */
  .btn { padding: 0.875rem 1.75rem; font-size: 0.9rem; }
}