:root {
  --void: #000000;
  --obsidian: #0A0A0A;
  --carbon: #0D0D12;
  --graphite: #1A1A24;
  --slate: #2A2A3A;
  --silver: #8A8AA0;
  --pearl: #C0C0D0;
  --ivory: #E8E8F0;
  --iridescent-teal: #00D4AA;
  --iridescent-cyan: #00B4D8;
  --iridescent-blue: #0077B6;
  --iridescent-purple: #7209B7;
  --prismatic-gold: #C9A962;
  --prismatic-amber: #D4A84B;
  --glow-teal: rgba(0, 212, 170, 0.4);
  --glow-blue: rgba(0, 180, 216, 0.3);
  --font-display: 'Outfit', sans-serif;
  --font-body: 'Space Grotesk', sans-serif;
  --transition-smooth: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-sharp: 0.2s ease-out;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--void);
  color: var(--pearl);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* Navigation */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1.5rem 4rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: linear-gradient(180deg, rgba(0,0,0,0.95) 0%, rgba(0,0,0,0) 100%);
}

.logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--ivory);
  text-decoration: none;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.logo span { color: var(--iridescent-teal); }

.nav-links {
  display: flex;
  gap: 3rem;
  list-style: none;
}

.nav-links a {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--silver);
  text-decoration: none;
  transition: var(--transition-sharp);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--iridescent-teal);
  transition: var(--transition-sharp);
}

.nav-links a:hover { color: var(--ivory); }
.nav-links a:hover::after { width: 100%; }
.nav-links a.active { color: var(--iridescent-teal); }
.nav-links a.active::after { width: 100%; }

/* Page Transitions */
.page {
  min-height: 100vh;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.6s ease-out forwards;
}

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

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 6rem 4rem;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse at 20% 50%, rgba(0, 212, 170, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 50%, rgba(0, 180, 216, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 100%, rgba(114, 9, 183, 0.05) 0%, transparent 50%);
}

.hero-content { position: relative; z-index: 1; max-width: 900px; }

.hero-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--iridescent-teal);
  padding: 0.5rem 1.5rem;
  border: 1px solid rgba(0, 212, 170, 0.3);
  margin-bottom: 2rem;
}

.hero h1 {
  font-size: clamp(2.5rem, 8vw, 6rem);
  font-weight: 800;
  color: var(--ivory);
  line-height: 1.05;
  margin-bottom: 1.5rem;
}

.hero h1 .accent { 
  background: linear-gradient(135deg, var(--iridescent-teal), var(--iridescent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  font-weight: 300;
  color: var(--silver);
  margin-bottom: 3rem;
}

.hero-tagline {
  font-size: 1.1rem;
  color: var(--pearl);
  max-width: 600px;
  margin: 0 auto 3rem;
  opacity: 0.9;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--void);
  background: var(--iridescent-teal);
  padding: 1rem 2.5rem;
  text-decoration: none;
  transition: var(--transition-smooth);
}

.hero-cta:hover {
  background: var(--ivory);
  transform: translateY(-3px);
  box-shadow: 0 20px 60px var(--glow-teal);
}

/* Section Styles */
.section {
  padding: 8rem 6rem;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 5rem;
}

.section-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--iridescent-teal);
  margin-bottom: 1rem;
}

.section-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  color: var(--ivory);
}

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

/* Cards */
.card {
  background: var(--carbon);
  border: 1px solid var(--slate);
  padding: 2.5rem;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--iridescent-teal), var(--iridescent-cyan));
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition-smooth);
}

.card:hover {
  border-color: var(--iridescent-teal);
  transform: translateY(-5px);
}

.card:hover::before { transform: scaleX(1); }

.card-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--iridescent-teal), var(--iridescent-cyan));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.card-icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--void);
  stroke-width: 2;
  fill: none;
}

.card h3 {
  font-size: 1.4rem;
  color: var(--ivory);
  margin-bottom: 0.75rem;
}

.card-sub {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--iridescent-teal);
  margin-bottom: 1rem;
}

.card p {
  color: var(--silver);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

/* Project Cards */
.project-card {
  background: var(--carbon);
  border: 1px solid var(--slate);
  overflow: hidden;
  transition: var(--transition-smooth);
}

.project-card:hover {
  border-color: var(--iridescent-teal);
  transform: translateY(-8px);
}

.project-image {
  height: 250px;
  background-size: cover;
  background-position: center;
  position: relative;
}

.project-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, var(--carbon) 100%);
}

.project-content {
  padding: 2rem;
}

.project-content h3 {
  font-size: 1.5rem;
  color: var(--ivory);
  margin-bottom: 0.5rem;
}

.project-content .project-sub {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--iridescent-teal);
  margin-bottom: 1rem;
}

.project-content p {
  color: var(--silver);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

/* Tags */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  font-size: 0.65rem;
  padding: 0.35rem 0.75rem;
  background: var(--graphite);
  border: 1px solid var(--slate);
  color: var(--silver);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Footer */
footer {
  border-top: 1px solid var(--slate);
  padding: 4rem 6rem;
  text-align: center;
}

footer p {
  font-size: 0.85rem;
  color: var(--silver);
}

/* Page Navigation */
.page-nav {
  display: flex;
  justify-content: center;
  gap: 2rem;
  padding: 3rem;
}

/* Responsive */
@media (max-width: 1024px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  nav { padding: 1rem 2rem; }
  .section { padding: 5rem 2rem; }
}