:root {
  --bg: #02030a;
  --bg-soft: #05081a;
  --primary: #00f5ff;
  --secondary: #b026ff;
  --text: #f5f7ff;
  --muted: #9aa6d9;
  --danger: #ff4b81;
  
  --font-primary: "Space Grotesk", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "Orbitron", system-ui;

  --nav-height: 64px;

  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  
  --radius: 14px;
  --shadow-neon: 0 0 18px rgba(0, 245, 255, 0.6);
  --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.65);
}

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-primary);
  color: var(--text);
  background:
    radial-gradient(circle at top, #04101f 0, #02040a 55%, #000000 100%);
  overflow-x: hidden;
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 6rem var(--space-md) 4rem;
  position: relative;
  z-index: 1;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* SKIP TO CONTENT */
.skip-to-content {
  position: absolute;
  left: -10000px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.skip-to-content:focus {
  position: absolute;
  top: 0;
  left: 0;
  width: auto;
  height: auto;
  overflow: visible;
  padding: 0.5rem var(--space-sm);
  background: var(--primary);
  color: var(--bg);
  font-weight: 600;
  border-radius: 0 0 var(--radius) var(--radius);
  z-index: 20;
}


/* BACKGROUND GRID */
.grid-bg {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 245, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 245, 255, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.6;
  pointer-events: none;
  z-index: 0;
}

/* NAV */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--nav-height);
  padding: 0 var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  backdrop-filter: blur(16px);
  background: linear-gradient(90deg, rgba(0, 0, 0, 0.75), rgba(5, 9, 30, 0.9));
  border-bottom: 1px solid rgba(0, 245, 255, 0.16);
  z-index: 10;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.3rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary);
}

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

.nav-desktop {
  display: flex;
  gap: 1.4rem;
}

.nav-desktop a {
  font-size: 0.85rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 600;
}

.nav-desktop a:hover {
  color: var(--primary);
}

/* MOBILE NAV */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: 0.5rem;
  cursor: pointer;
}

.hamburger {
  display: block;
  position: relative;
  width: 24px;
  height: 2px;
  background: var(--primary);
  transition: transform 0.3s ease;
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--primary);
  transition: transform 0.3s ease, top 0.3s ease;
}

.hamburger::before {
  top: -8px;
}

.hamburger::after {
  top: 8px;
}

body.nav-open .hamburger {
  transform: rotate(45deg);
}

body.nav-open .hamburger::before {
  top: 0;
  transform: rotate(90deg);
}

body.nav-open .hamburger::after {
  top: 0;
}

.nav-mobile-container {
  position: fixed;
  inset: 0;
  background: rgba(2, 3, 10, 0.9);
  backdrop-filter: blur(16px);
  z-index: 9;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: translateX(100%);
  transition: transform 0.4s ease-in-out;
}

body.nav-open .nav-mobile-container {
  transform: translateX(0);
}

.nav-mobile {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}

.nav-mobile a {
  font-size: 1.2rem;
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-weight: 600;
  padding: 0.5rem var(--space-sm);
}

.nav-mobile a:hover {
  color: var(--primary);
}

/* SECTIONS */
.section {
  margin-top: 4rem;
  padding: 2.4rem var(--space-lg);
  background:
    radial-gradient(circle at top left, rgba(0, 245, 255, 0.08), transparent 50%),
    linear-gradient(145deg, rgba(5, 9, 30, 0.96), rgba(3, 4, 15, 0.98));
  border-radius: 24px;
  border: 1px solid rgba(0, 245, 255, 0.18);
  box-shadow: var(--shadow-soft);
  opacity: 0;
  transform: translateY(26px);
  transition:
    opacity 0.6s ease-out,
    transform 0.6s ease-out,
    box-shadow 0.3s ease-out,
    border-color 0.3s ease-out;
}

.section.visible {
  opacity: 1;
  transform: translateY(0);
}

.section:hover {
  box-shadow: var(--shadow-neon);
  border-color: rgba(0, 245, 255, 0.4);
}

.section-title {
  margin: 0 0 0.8rem;
  font-family: var(--font-display);
  font-size: 1.4rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--primary);
}

.section-text {
  margin: 0.3rem 0 0;
  color: var(--muted);
  line-height: 1.6;
}

/* HERO */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
  gap: 2.4rem;
  align-items: center;
  margin-top: 6.4rem;
}

.hero-content h1 {
  font-size: 2.6rem;
  margin: 0.2rem 0 0.8rem;
  font-family: var(--font-display);
  letter-spacing: 0.05em;
}

.hero-content h1 span {
  color: var(--primary);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.2rem 0.7rem;
  border-radius: 999px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--primary);
  border: 1px solid rgba(0, 245, 255, 0.5);
  background: rgba(0, 245, 255, 0.05);
}

.hero-sub {
  margin: 0 0 1.4rem;
  color: var(--muted);
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.btn {
  padding: 0.6rem 1.4rem;
  border-radius: 999px;
  border: 1px solid rgba(0, 245, 255, 0.6);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  background: transparent;
  transition: transform 0.15s ease, box-shadow 0.2s ease;
}

.btn.primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #020309;
  border: none;
  box-shadow: var(--shadow-neon);
}

.btn.ghost {
  background: rgba(2, 5, 20, 0.9);
}

.btn:hover {
  transform: translateY(-1px) scale(1.02);
  box-shadow: var(--shadow-neon);
}

/* FOCUS VISIBILITY */
a:focus-visible,
button:focus-visible,
.btn:focus-visible {
  outline: 2px dashed var(--primary);
  outline-offset: 4px;
}


/* ORBIT VISUAL */
.hero-orbit {
  position: relative;
  width: 260px;
  height: 260px;
  margin: 0 auto;
  border-radius: 50%;
  background: radial-gradient(circle at center, rgba(0, 245, 255, 0.2), transparent 60%);
  box-shadow: 0 0 40px rgba(0, 245, 255, 0.4);
  overflow: hidden;
  animation: reactorSpin 18s linear infinite, reactorPulse 3s ease-in-out infinite;
}

.orbit-ring {
  position: absolute;
  inset: 16px;
  border-radius: 50%;
  border: 1px dashed rgba(0, 245, 255, 0.45);
}

.ring-2 {
  inset: 32px;
  border-color: rgba(176, 38, 255, 0.45);
}

.orbit-node {
  position: absolute;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  box-shadow: 0 0 18px rgba(0, 245, 255, 0.8);
}

.node-1 { background: var(--primary); animation: orbit1 7s linear infinite; }
.node-2 { background: var(--secondary); animation: orbit2 9s linear infinite; }
.node-3 { background: var(--danger); animation: orbit3 11s linear infinite; }

@keyframes orbit1 {
  from { transform: rotate(0deg) translateY(-80px); }
  to   { transform: rotate(360deg) translateY(-80px); }
}
@keyframes orbit2 {
  from { transform: rotate(0deg) translateY(-65px); }
  to   { transform: rotate(360deg) translateY(-65px); }
}
@keyframes orbit3 {
  from { transform: rotate(0deg) translateY(-50px); }
  to   { transform: rotate(360deg) translateY(-50px); }
}

@keyframes reactorSpin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}
@keyframes reactorPulse {
  0%,100% { box-shadow: 0 0 30px rgba(0,245,255,0.35); }
  50%     { box-shadow: 0 0 55px rgba(176,38,255,0.7); }
}

/* CARDS GRID */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.4rem;
  margin-top: 1.2rem;
}

.card {
  background: rgba(0, 0, 0, 0.6);
  border-radius: var(--radius);
  padding: 1.3rem;
  border: 1px solid rgba(0, 245, 255, 0.18);
  position: relative;
  overflow: hidden;
}

/* PROJECT CARD FIX */
.project-card {
  border: 1px solid transparent;
  border-image: linear-gradient(130deg, var(--primary), var(--secondary)) 1;
  padding: 0;
}

.project-link {
  display: block;
  padding: 1.3rem;
  color: inherit;
  text-decoration: none;
}

.project-link:hover {
  text-decoration: none;
}


/* TIMELINE */
.timeline {
  margin-top: 1.3rem;
  border-left: 1px dashed rgba(0, 245, 255, 0.32);
  padding-left: var(--space-md);
}

/* CONTACT */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.4rem;
  margin-top: var(--space-sm);
}

/* FOOTER */
.footer {
  text-align: center;
  padding: var(--space-md) var(--space-sm) var(--space-lg);
  font-size: 0.8rem;
  color: var(--muted);
}

/* REDUCED MOTION */
@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}

/* RESPONSIVE */
@media (max-width: 800px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .hero-orbit {
    order: -1;
  }

  .nav-desktop {
    display: none;
  }

  .nav-toggle {
.project-card {
  padding: 0;
}
    display: block;
  }

  main {
    padding-top: calc(var(--nav-height) - 0.5rem);
  }
}

/* ENHANCED ARC REACTOR ANIMATIONS */
.hero-orbit { box-shadow: 0 0 40px rgba(0, 245, 255, 0.4), inset 0 0 40px rgba(0, 245, 255, 0.2); animation: reactorSpin 18s linear infinite, reactorPulse 3s ease-in-out infinite, reactorGlow 4s ease-in-out infinite; }
@keyframes reactorGlow { 0%,100% { filter: brightness(1) drop-shadow(0 0 20px rgba(0, 245, 255, 0.6)); } 50% { filter: brightness(1.1) drop-shadow(0 0 40px rgba(176, 38, 255, 0.8)); } }
@keyframes orbitNodeGlow { 0%,100% { box-shadow: 0 0 18px currentColor, 0 0 36px currentColor; } 50% { box-shadow: 0 0 28px currentColor, 0 0 56px currentColor, 0 0 80px currentColor; } } .orbit-node { animation-name: orbitNodeGlow; }
/* ENHANCED CARD INTERACTIONS */ .card { transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease-out; }
.card:hover { transform: translateY(-6px) scale(1.02); box-shadow: 0 12px 40px rgba(0, 245, 255, 0.25), inset 0 0 30px rgba(0, 245, 255, 0.1); border-color: rgba(0, 245, 255, 0.6); }
/* ENHANCED SCROLL ANIMATIONS */ .section { animation: sectionSlideIn 0.7s cubic-bezier(0.34, 1.56, 0.64, 1) backwards; }
@keyframes sectionSlideIn { 0% { opacity: 0; transform: translateY(40px); } 100% { opacity: 1; transform: translateY(0); } }
/* ENHANCED MOBILE RESPONSIVENESS */ @media (max-width: 1024px) { .hero { grid-template-columns: 1fr; gap: 3rem; } .hero-orbit { width: 280px; height: 280px; } .cards-grid { grid-template-columns: repeat(2, 1fr); } main { padding: calc(var(--nav-height) + 2rem) var(--space-md) 3rem; } }
@media (max-width: 768px) { .hero-content h1 { font-size: 2rem; } .hero { gap: 2rem; } .hero-orbit { width: 240px; height: 240px; } .cards-grid { grid-template-columns: 1fr; } .hero-actions { flex-wrap: wrap; } .section { padding: 1.8rem var(--space-md); } .section-title { font-size: 1.2rem; } }
@media (max-width: 480px) { .hero-content h1 { font-size: 1.6rem; margin-top: 0.5rem; } main { padding: calc(var(--nav-height) + 1rem) 1rem 2rem; max-width: 100%; } .section { margin-top: 2.5rem; padding: 1.4rem 1rem; } .hero-actions { gap: 0.6rem; } .btn { padding: 0.5rem 1rem; font-size: 0.8rem; } .tag { font-size: 0.7rem; padding: 0.15rem 0.6rem; } .hero-orbit { width: 200px; height: 200px; margin-top: 1.5rem; } .cards-grid { gap: 1rem; margin-top: 1rem; } .contact-grid { grid-template-columns: 1fr; gap: 1rem; } }
/* ENHANCED TEXT AND LINK ANIMATIONS */ a, .btn { transition: color 0.25s ease, text-decoration-color 0.25s ease; } a:hover { text-decoration-color: var(--primary); } h1, h2, h3 { transition: color 0.3s ease, text-shadow 0.3s ease; }
/* HERO SECTION ENHANCEMENTS */ .hero-content h1 { animation: titleGlow 3s ease-in-out infinite; } @keyframes titleGlow { 0%, 100% { text-shadow: 0 0 10px rgba(0, 245, 255, 0.2); } 50% { text-shadow: 0 0 20px rgba(0, 245, 255, 0.4), 0 0 30px rgba(176, 38, 255, 0.2); } }
/* BUTTON GLOW EFFECTS */ .btn.primary { position: relative; overflow: hidden; } .btn.primary::before { content: ''; position: absolute; top: 50%; left: 50%; width: 0; height: 0; border-radius: 50%; background: rgba(255, 255, 255, 0.3); transform: translate(-50%, -50%); transition: width 0.6s, height 0.6s; } .btn.primary:active::before { width: 300px; height: 300px; }
/* STAGGERED CARD ANIMATIONS */ .cards-grid .card { animation: cardStagger 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) both; } .cards-grid .card:nth-child(1) { animation-delay: 0.1s; } .cards-grid .card:nth-child(2) { animation-delay: 0.2s; } .cards-grid .card:nth-child(3) { animation-delay: 0.3s; } .cards-grid .card:nth-child(4) { animation-delay: 0.4s; } @keyframes cardStagger { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
/* IMPROVED NAV MOBILE */ @media (max-width: 600px) { .nav { height: 56px; padding: 0 1rem; } .logo { font-size: 1.1rem; } .nav-mobile { gap: 1rem; } .nav-mobile a { font-size: 1rem; } }


/* JARVIS ARC REACTOR - STARK INDUSTRIES INSPIRED */

/* ARC REACTOR CORE */
.reactor-core {
  position: absolute;
  inset: 35%;
  border-radius: 50%;
  background:
    radial-gradient(circle at center,
      rgba(255,255,255,0.95) 0,
      #00f5ff 30%,
      #02030a 70%);
  box-shadow:
    0 0 25px rgba(0,245,255,0.9),
    0 0 60px rgba(0,245,255,0.8);
  animation: corePulse 2.4s ease-in-out infinite;
}

/* RINGS AROUND CORE */
.reactor-ring {
  position: absolute;
  inset: 12%;
  border-radius: 50%;
  border: 2px solid rgba(0,245,255,0.45);
  box-shadow: 0 0 18px rgba(0,245,255,0.6);
  mix-blend-mode: screen;
}

.ring-inner {
  inset: 22%;
  border-style: dashed;
  animation: ringSpinSlow 10s linear infinite;
}

.ring-middle {
  inset: 14%;
  border-color: rgba(176,38,255,0.7);
  border-style: dotted;
  animation: ringSpinFast 6s linear infinite reverse;
}

.ring-outer {
  inset: 6%;
  border-width: 3px;
  border-color: rgba(0,245,255,0.35);
  animation: ringSpinSlow 14s linear infinite;
}

/* RADIAL LINES / DATA SPOKES */
.reactor-lines {
  position: absolute;
  inset: 10%;
  border-radius: 50%;
  background:
    repeating-conic-gradient(
      from 0deg,
      rgba(0,245,255,0.15) 0deg 4deg,
      transparent 4deg 12deg
    );
  mask-image: radial-gradient(circle at center, transparent 0 30%, black 31% 100%);
/* animation: dataSweep 4s linear infinite; */ animation: none;
}

/* ARC REACTOR ANIMATIONS */
@keyframes corePulse {
  0%, 100% {
    transform: scale(1);
    box-shadow:
      0 0 22px rgba(0,245,255,0.8),
      0 0 50px rgba(0,245,255,0.7);
  }
  50% {
    transform: scale(1.06);
    box-shadow:
      0 0 32px rgba(176,38,255,0.9),
      0 0 80px rgba(0,245,255,0.9);
  }
}

@keyframes ringSpinSlow {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

@keyframes ringSpinFast {
  from { transform: rotate(0deg); }
  to   { transform: rotate(-360deg); }
}

@keyframes dataSweep {
  0%   { transform: rotate(0deg); opacity: 0.7; }
  50%  { opacity: 1; }
  100% { transform: rotate(360deg); opacity: 0.7; }

/* FORCE DESKTOP LAYOUT ON MOBILE */
/* Disable responsive scaling - keep desktop layout always */
@media (max-width: 10000px) {
  .hero { grid-template-columns: minmax(0, 3fr) minmax(0, 2fr) !important; }
  .hero-orbit { order: auto !important; width: 260px !important; height: 260px !important; }
  .nav-desktop { display: flex !important; }
  .nav-toggle { display: none !important; }
  main { padding: 6rem 1rem 4rem !important; }
  .hero-content h1 { font-size: 2.6rem !important; }
  .cards-grid { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)) !important; }
  .section { margin-top: 4rem !important; padding: 2.4rem 2rem !important; }
  .contact-grid { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)) !important; }
}
      }


/* IRON MAN ARC REACTOR - INTERNAL ENERGY ANIMATIONS */
.reactor-lines { animation: energyWave 3s ease-in-out infinite, innerGlow 4s ease-in-out infinite; }

@keyframes energyWave {
  0% { opacity: 0.3; transform: rotate(0deg) scale(0.95); filter: brightness(0.8); }
  25% { opacity: 0.5; transform: rotate(90deg) scale(1); filter: brightness(1.2); }
  50% { opacity: 0.7; transform: rotate(180deg) scale(1.05); filter: brightness(1.4); }
  75% { opacity: 0.5; transform: rotate(270deg) scale(1); filter: brightness(1.2); }
  100% { opacity: 0.3; transform: rotate(360deg) scale(0.95); filter: brightness(0.8); }
}

@keyframes innerGlow {
  0%, 100% { filter: drop-shadow(0 0 10px rgba(0,245,255,0.6)); }
  50% { filter: drop-shadow(0 0 25px rgba(0,245,255,0.9)) drop-shadow(0 0 40px rgba(176,38,255,0.7)); }
}

/* Enhanced reactor core with intensified pulsing */
.reactor-core { animation: coreIntensePulse 2s ease-in-out infinite, coreGlow 3s ease-in-out infinite !important; }

@keyframes coreIntensePulse {
  0%, 100% { transform: scale(1); opacity: 0.9; }
  50% { transform: scale(1.08); opacity: 1; }
}

@keyframes coreGlow {
  0%, 100% { filter: brightness(1) drop-shadow(0 0 20px rgba(0,245,255,0.6)) drop-shadow(0 0 40px rgba(0,245,255,0.3)); }
  50% { filter: brightness(1.2) drop-shadow(0 0 40px rgba(0,245,255,0.9)) drop-shadow(0 0 80px rgba(176,38,255,0.5)); }
}