/* ==========================================================================
   AURUM BLOCKS - TOP MUNDIAL DESIGN SYSTEM (MOBILE FIRST)
   ========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
  --bg-primary: #020202;
  --bg-secondary: #080808;
  --gold-primary: #E5C158; 
  --gold-soft: #F9E5A3;
  --gold-dark: #997A15;
  --text-primary: #ffffff;
  --text-muted: #c4c4c4; 
  --text-dim: #999999;
  --glass: rgba(255, 255, 255, 0.02);
  --glass-border: rgba(255, 255, 255, 0.06);
  --glass-hover: rgba(255, 255, 255, 0.04);
  --glass-gold: rgba(229, 193, 88, 0.05);
  --radius: 16px;
  --radius-sm: 8px;
  --max-width: 1320px;
  --shadow-subtle: 0 20px 40px rgba(0,0,0,0.8);
  --shadow-glow: 0 0 50px rgba(229, 193, 88, 0.15);
  --transition: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; background-color: var(--bg-primary); }
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: #333; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--gold-dark); }

body {
  font-family: 'Inter', sans-serif;
  color: var(--text-primary); line-height: 1.6; -webkit-font-smoothing: antialiased;
  overflow-x: hidden; position: relative;
}

#interactive-canvas {
  position: fixed; top: 0; left: 0; width: 100%; height: 100vh;
  z-index: -1; pointer-events: none; opacity: 0.8;
}

a { color: inherit; text-decoration: none; transition: color var(--transition); }
img, svg { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* Responsive Typography */
h1, h2, h3, h4 { font-weight: 800; letter-spacing: -0.03em; line-height: 1.15; }
h1 { font-size: clamp(30px, 7vw, 76px); word-break: break-word; } 
h2 { font-size: clamp(28px, 6vw, 54px); word-break: break-word; }
h3 { font-size: clamp(22px, 5vw, 40px); }

.text-gold {
  background: linear-gradient(90deg, var(--gold-primary), var(--gold-soft));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  text-shadow: 0 0 30px rgba(229, 193, 88, 0.2);
}

.reveal { opacity: 0; transform: translateY(40px); transition: all 1s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal.active { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }

/* Elegant Corporate Buttons */
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 18px 40px; background: linear-gradient(135deg, var(--gold-primary), var(--gold-soft));
  color: #000; font-weight: 800; font-size: 16px; letter-spacing: 0.03em;
  border-radius: 999px; transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 8px 24px rgba(229, 193, 88, 0.25); position: relative; overflow: hidden;
}
.btn-primary:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(229, 193, 88, 0.4); }

.btn-secondary {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 18px 36px; background: rgba(229,193,88,0.03);
  border: 1px solid var(--gold-primary); color: var(--gold-primary);
  font-weight: 600; font-size: 16px; border-radius: 999px; transition: all var(--transition);
}
.btn-secondary:hover { background: rgba(229,193,88,0.1); border-color: var(--gold-soft); color: var(--gold-soft); transform: translateY(-2px); box-shadow: 0 4px 15px rgba(229,193,88,0.15); }

/* Header Premium */
header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 24px 0; background: rgba(2, 2, 2, 0.7); backdrop-filter: blur(24px); 
  border-bottom: 1px solid var(--glass-border); transition: padding 0.4s ease;
}
header.scrolled { padding: 16px 0; background: rgba(2, 2, 2, 0.9); }
.header-inner { display: flex; justify-content: space-between; align-items: center; }
.brand { display: flex; align-items: center; gap: 14px; position: relative; z-index: 1001; }
.brand img { width: 36px; height: 36px; border-radius: 8px; box-shadow: 0 0 20px rgba(229,193,88,0.2);}
.brand span { font-weight: 800; font-size: 18px; text-transform: uppercase; letter-spacing: 0.08em; }

nav { display: flex; gap: 40px; align-items: center; transition: all 0.3s ease; }
.nav-link { font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-dim); position: relative; }
.nav-link::after { content: ''; position: absolute; bottom: -4px; left: 0; width: 0%; height: 2px; background: var(--gold-primary); transition: width var(--transition); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }
.nav-link:hover, .nav-link.active { color: var(--text-primary); }
.nav-link.highlight { padding: 10px 20px; background: var(--glass-gold); border: 1px solid rgba(229,193,88,0.3); color: var(--gold-primary); border-radius: 999px; }
.nav-link.highlight::after { display: none; }
.nav-link.highlight:hover { background: rgba(229,193,88,0.1); box-shadow: var(--shadow-glow); }

.mobile-menu-btn { display: none; color: var(--text-primary); position: relative; z-index: 1001; }

/* SVG Animation Base Classes */
.svg-pulse { animation: svg-pulse-anim 3s infinite alternate; }
@keyframes svg-pulse-anim { 0% { opacity: 0.6; filter: drop-shadow(0 0 5px rgba(229,193,88,0.2)); } 100% { opacity: 1; filter: drop-shadow(0 0 15px rgba(229,193,88,0.6)); } }
.svg-float { animation: svg-float-anim 6s ease-in-out infinite; }
@keyframes svg-float-anim { 0% { transform: translateY(0); } 50% { transform: translateY(-15px); } 100% { transform: translateY(0); } }

footer { padding: 80px 0 40px; border-top: 1px solid var(--glass-border); margin-top: 120px; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; color: var(--text-dim); font-size: 14px; flex-wrap: wrap; gap: 20px; }

/* Mobile Optimizations */
@media (max-width: 900px) { 
  .mobile-menu-btn { display: block; }
  
  nav { 
    position: fixed; top: 0; right: -100%; width: 100%; height: 100vh; 
    background: rgba(2, 2, 2, 0.98); backdrop-filter: blur(20px);
    flex-direction: column; justify-content: center; gap: 40px;
  }
  nav.active { right: 0; }
  
  .nav-link { font-size: 20px; }
  
  .container { padding: 0 24px; }
  .btn-primary, .btn-secondary { width: 100%; text-align: center; display: flex; justify-content: center; flex-direction: row; font-size: 15px; padding: 14px 20px; } 
  footer { padding: 40px 0 20px; margin-top: 60px; text-align: center; justify-content: center; }
}