:root {
  --primary-color: #C5A059;
  --primary-light: #E9C176;
  --dark-background-color: #0A0A0A;
  --surface-low: #0E0E0E;
  --surface-container: #131313;
  --surface-container-high: #1C1C1C;
  --surface-container-highest: #252525;
  --dark-text-color: #E5E4E2;
  --gray-text-color: #9A8F80;
  --dark-border-color: #2A2A2A;
  --secondary-button-bg-color: #131313;
  --font-family-body: 'Manrope', sans-serif;
  --font-family-heading: 'Noto Serif', serif;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--dark-background-color);
  font-family: var(--font-family-body);
  color: var(--dark-text-color);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

* {
  box-sizing: border-box;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-heading);
}

/* --- Gold Metallic Gradient --- */
.gold-metallic {
  background: linear-gradient(135deg, #C5A059 0%, #E9C176 50%, #C5A059 100%);
}

/* --- Glass Nav --- */
.glass-nav {
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}

/* --- Hover Lift --- */
.hover-lift {
  transition: transform 0.4s cubic-bezier(0.2, 0, 0, 1), box-shadow 0.4s cubic-bezier(0.2, 0, 0, 1);
}
.hover-lift:hover {
  transform: translateY(-4px);
}

/* --- Reveal on Scroll --- */
.reveal-on-scroll {
  opacity: 0;
}
.reveal-on-scroll.active {
  animation: fade-in-up 1.2s cubic-bezier(0.2, 0, 0, 1) forwards;
}

@keyframes fade-in-up {
  0% { opacity: 0; transform: translateY(20px); }
  100% { opacity: 1; transform: translateY(0); }
}

/* --- Header Scroll Animate --- */
.scroll-animate {
  opacity: 0;
  transform: translateY(40px) scale(0.98);
  transition: opacity 1.2s cubic-bezier(0.19, 1, 0.22, 1), transform 1.2s cubic-bezier(0.19, 1, 0.22, 1);
}
.scroll-animate.animate-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* --- Status Dot (pulsing gold) --- */
.status-dot {
  width: 8px;
  height: 8px;
  background-color: var(--primary-color);
  border-radius: 50%;
  position: relative;
  display: inline-block;
  flex-shrink: 0;
}
.status-dot::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--primary-color);
  transform: translate(-50%, -50%);
  animation: pulse-ring 2s ease-out infinite;
}

@keyframes pulse-ring {
  0%  { width: 8px;  height: 8px;  opacity: 0.6; }
  100%{ width: 24px; height: 24px; opacity: 0;   }
}

/* --- Particle Canvas --- */
#particle-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

/* --- Progress Bar --- */
.progress-fill {
  transition: width 1.4s cubic-bezier(0.2, 0, 0, 1);
}

/* --- Scroll margin so fixed header doesn't cover sections --- */
#portfolio, #experience, #extracurriculars, #about, #contact {
  scroll-margin-top: 72px;
}

/* --- Grain texture on hero --- */
#hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='1'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 200px 200px;
  opacity: 0.028;
  pointer-events: none;
  z-index: 2;
  mix-blend-mode: overlay;
}

/* --- Skills marquee strip --- */
.marquee-track {
  display: flex;
  width: max-content;
  animation: marquee 30s linear infinite;
}
@media (prefers-reduced-motion: reduce) {
  .marquee-track { animation: none; }
}
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* --- Active nav link --- */
nav a.nav-active {
  color: #C5A059;
  border-bottom: 1px solid #C5A059;
  padding-bottom: 2px;
}