/* ==============================
   RETRO FUTURISM — Style
   Neon grids, synthwave, glitch, 3D perspective
   ============================== */

[data-theme="navy"] {
  --bg: #060818;
  --bg-card: rgba(10,15,40,0.8);
  --text-primary: #c0d0e8;
  --text-secondary: #607090;
  --accent: #00e5ff;
  --accent-2: #7b5ea7;
  --neon-glow: 0 0 10px rgba(0,229,255,0.5), 0 0 30px rgba(0,229,255,0.2);
  --neon-glow-strong: 0 0 10px rgba(0,229,255,0.8), 0 0 40px rgba(0,229,255,0.3), 0 0 80px rgba(0,229,255,0.1);
  --grid-color: rgba(0,229,255,0.08);
  --sun-1: #00e5ff;
  --sun-2: #7b5ea7;
  --heading: #e0f0ff;
  --border: rgba(0,229,255,0.15);
}
[data-theme="dark"] {
  --bg: #0a0012;
  --bg-card: rgba(15,5,25,0.8);
  --text-primary: #e0d0f0;
  --text-secondary: #8060a0;
  --accent: #ff00ff;
  --accent-2: #00ffff;
  --neon-glow: 0 0 10px rgba(255,0,255,0.5), 0 0 30px rgba(255,0,255,0.2);
  --neon-glow-strong: 0 0 10px rgba(255,0,255,0.8), 0 0 40px rgba(255,0,255,0.3), 0 0 80px rgba(255,0,255,0.1);
  --grid-color: rgba(255,0,255,0.06);
  --sun-1: #ff00ff;
  --sun-2: #ff6600;
  --heading: #ffd0ff;
  --border: rgba(255,0,255,0.15);
}
[data-theme="light"] {
  --bg: #f0e8f5;
  --bg-card: rgba(255,255,255,0.7);
  --text-primary: #2a1040;
  --text-secondary: #6a5080;
  --accent: #8b00ff;
  --accent-2: #ff4488;
  --neon-glow: 0 0 8px rgba(139,0,255,0.3), 0 0 20px rgba(139,0,255,0.1);
  --neon-glow-strong: 0 0 10px rgba(139,0,255,0.5), 0 0 30px rgba(139,0,255,0.15);
  --grid-color: rgba(139,0,255,0.06);
  --sun-1: #8b00ff;
  --sun-2: #ff4488;
  --heading: #3a1858;
  --border: rgba(139,0,255,0.15);
}
[data-theme="vibrant"] {
  --bg: #0c0020;
  --bg-card: rgba(20,5,50,0.8);
  --text-primary: #f0d8ff;
  --text-secondary: #b070d0;
  --accent: #ff2d95;
  --accent-2: #00ffff;
  --neon-glow: 0 0 10px rgba(255,45,149,0.5), 0 0 30px rgba(255,45,149,0.2);
  --neon-glow-strong: 0 0 10px rgba(255,45,149,0.8), 0 0 40px rgba(255,45,149,0.3), 0 0 80px rgba(255,45,149,0.1);
  --grid-color: rgba(255,45,149,0.06);
  --sun-1: #ff2d95;
  --sun-2: #ffaa00;
  --heading: #ffe0f0;
  --border: rgba(255,45,149,0.15);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  font-family: 'Rajdhani', sans-serif;
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  transition: background 0.5s, color 0.5s;
}

/* --- Scanlines --- */
.scanlines {
  position: fixed; inset: 0; z-index: 9999; pointer-events: none;
  background: repeating-linear-gradient(0deg, rgba(0,0,0,0.03) 0px, rgba(0,0,0,0.03) 1px, transparent 1px, transparent 3px);
}
[data-theme="light"] .scanlines { opacity: 0.3; }

/* --- Grid Floor --- */
.grid-floor {
  position: fixed; bottom: 0; left: 0; right: 0; height: 40vh;
  perspective: 400px; z-index: 0; overflow: hidden;
}
.grid-floor__inner {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
  background-size: 60px 60px;
  transform: rotateX(60deg);
  transform-origin: bottom center;
  animation: gridScroll 4s linear infinite;
}
@keyframes gridScroll {
  0% { background-position: 0 0; }
  100% { background-position: 0 60px; }
}

/* --- Glitch Text --- */
.glitch-text {
  position: relative;
}
.glitch-text::before,
.glitch-text::after {
  content: attr(data-text);
  position: absolute; left: 0; top: 0;
  width: 100%; height: 100%;
  overflow: hidden;
}
.glitch-text::before {
  color: var(--accent);
  z-index: -1;
  animation: glitch1 3s infinite linear alternate-reverse;
}
.glitch-text::after {
  color: var(--accent-2);
  z-index: -2;
  animation: glitch2 2s infinite linear alternate-reverse;
}
@keyframes glitch1 {
  0%, 90%, 100% { clip-path: inset(0); transform: translate(0); }
  92% { clip-path: inset(30% 0 40% 0); transform: translate(-3px, 1px); }
  95% { clip-path: inset(60% 0 10% 0); transform: translate(3px, -1px); }
}
@keyframes glitch2 {
  0%, 85%, 100% { clip-path: inset(0); transform: translate(0); }
  87% { clip-path: inset(10% 0 70% 0); transform: translate(3px, 2px); }
  93% { clip-path: inset(50% 0 20% 0); transform: translate(-2px, -1px); }
}

/* --- Neon Flicker --- */
.neon-flicker {
  animation: neonFlicker 4s infinite;
}
@keyframes neonFlicker {
  0%, 19%, 21%, 23%, 25%, 54%, 56%, 100% { opacity: 1; }
  20%, 24%, 55% { opacity: 0.5; }
}

/* --- Neon Text --- */
.neon-text { color: var(--accent); text-shadow: var(--neon-glow); }

/* --- Neon Card --- */
.neon-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 1.5rem;
  position: relative;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s;
}
.neon-card:hover {
  border-color: var(--accent);
  box-shadow: var(--neon-glow);
  transform: translateY(-4px) perspective(600px) rotateX(2deg);
}

/* --- Neon Pill --- */
.neon-pill {
  display: inline-flex; align-items: center; gap: 0.3rem;
  padding: 0.35rem 0.9rem;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.8rem; font-weight: 500;
  letter-spacing: 0.05em;
  clip-path: polygon(6px 0, 100% 0, calc(100% - 6px) 100%, 0 100%);
  transition: all 0.3s;
  text-decoration: none;
}
.neon-pill:hover { border-color: var(--accent); color: var(--accent); }
.neon-pill--featured {
  border-color: var(--accent); color: var(--accent);
  background: rgba(var(--accent), 0.1);
  text-shadow: var(--neon-glow);
  font-weight: 600;
}
[data-theme="dark"] .neon-pill--featured { background: rgba(255,0,255,0.1); }
[data-theme="navy"] .neon-pill--featured { background: rgba(0,229,255,0.1); }
[data-theme="vibrant"] .neon-pill--featured { background: rgba(255,45,149,0.1); }
[data-theme="light"] .neon-pill--featured { background: rgba(139,0,255,0.1); }
.neon-pill small { opacity: 0.7; font-size: 0.72rem; }

/* --- Container --- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; position: relative; z-index: 1; }
.section { padding: 7rem 0; position: relative; z-index: 1; }
.section-header { text-align: center; margin-bottom: 3.5rem; }
.section__label { display: block; font-family: 'Orbitron', sans-serif; font-size: 0.75rem; letter-spacing: 0.3em; margin-bottom: 0.5rem; }
.section__title {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(1.8rem, 4vw, 3rem); font-weight: 800;
  color: var(--heading);
  text-shadow: var(--neon-glow);
  letter-spacing: 0.05em;
}

/* --- Nav --- */
.nav {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 100;
  padding: 1rem 0; transition: all 0.4s;
}
.nav--scrolled {
  background: rgba(10,5,25,0.9); backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border); padding: 0.7rem 0;
}
[data-theme="light"] .nav--scrolled { background: rgba(240,232,245,0.9); }
.nav__container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; display: flex; align-items: center; justify-content: space-between; }
.nav__logo {
  font-family: 'Orbitron', sans-serif; font-size: 1.4rem; font-weight: 900;
  color: var(--accent); text-decoration: none; text-shadow: var(--neon-glow);
}
.nav__links { display: flex; list-style: none; gap: 1.8rem; }
.nav__links a {
  font-family: 'Orbitron', sans-serif; font-size: 0.7rem; font-weight: 600;
  color: var(--text-secondary); text-decoration: none; letter-spacing: 0.15em;
  transition: color 0.3s, text-shadow 0.3s;
}
.nav__links a:hover, .nav__links a.active { color: var(--accent); text-shadow: var(--neon-glow); }
.nav__actions { display: flex; align-items: center; gap: 1rem; }
.theme-toggle {
  width: 36px; height: 36px; border: 1px solid var(--border);
  background: transparent; cursor: pointer; display: flex; align-items: center; justify-content: center;
  clip-path: polygon(4px 0, 100% 0, calc(100% - 4px) 100%, 0 100%);
  transition: border-color 0.3s;
}
.theme-toggle:hover { border-color: var(--accent); }
.theme-toggle__icon { width: 12px; height: 12px; background: var(--accent); box-shadow: var(--neon-glow); }
.theme-palette {
  position: fixed; top: 65px; right: 2rem; display: flex; gap: 0.5rem;
  opacity: 0; visibility: hidden; transform: translateY(-8px); transition: all 0.3s; z-index: 101;
}
.theme-palette--open { opacity: 1; visibility: visible; transform: translateY(0); }
.theme-swatch { width: 28px; height: 28px; border: 2px solid transparent; cursor: pointer; transition: transform 0.3s; clip-path: polygon(4px 0, 100% 0, calc(100% - 4px) 100%, 0 100%); }
.theme-swatch:hover { transform: scale(1.2); }
.theme-swatch--navy { background: #060818; border-color: #00e5ff; }
.theme-swatch--dark { background: #0a0012; border-color: #ff00ff; }
.theme-swatch--light { background: #f0e8f5; border-color: #8b00ff; }
.theme-swatch--vibrant { background: #0c0020; border-color: #ff2d95; }

.nav__menu-btn { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.nav__menu-btn span { display: block; width: 22px; height: 1.5px; background: var(--accent); transition: all 0.3s; }
.nav__menu-btn--open span:nth-child(1) { transform: rotate(45deg) translate(4px,4px); }
.nav__menu-btn--open span:nth-child(2) { opacity: 0; }
.nav__menu-btn--open span:nth-child(3) { transform: rotate(-45deg) translate(4px,-4px); }

.mobile-menu {
  display: none; position: fixed; inset: 0; z-index: 99;
  background: rgba(10,5,25,0.96);
  flex-direction: column; align-items: center; justify-content: center; gap: 2rem;
}
.mobile-menu--open { display: flex; }
.mobile-menu a {
  font-family: 'Orbitron', sans-serif; color: var(--accent);
  text-decoration: none; font-size: 1.4rem; font-weight: 700;
  text-shadow: var(--neon-glow); letter-spacing: 0.1em;
}

/* --- Hero --- */
.hero {
  position: relative; z-index: 1;
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.hero__sun {
  position: absolute; bottom: 15%; left: 50%; transform: translateX(-50%);
  width: 300px; height: 300px; border-radius: 50%;
  background: linear-gradient(180deg, var(--sun-1), var(--sun-2));
  filter: blur(2px);
  box-shadow: var(--neon-glow-strong);
  mask-image: linear-gradient(to bottom, black 50%, transparent 50%);
  -webkit-mask-image: linear-gradient(to bottom, black 50%, transparent 50%);
  opacity: 0.6;
}
.hero__content { position: relative; z-index: 2; text-align: center; }
.hero__label {
  font-family: 'Orbitron', sans-serif; font-size: 0.75rem;
  color: var(--accent); letter-spacing: 0.3em; margin-bottom: 1.5rem;
}
.hero__name {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(2.5rem, 8vw, 6rem); font-weight: 900;
  color: var(--heading); line-height: 1.05; margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
}
.hero__role {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.85rem; color: var(--text-secondary);
  letter-spacing: 0.2em; margin-bottom: 2.5rem;
}
.neon-pipe { color: var(--accent); text-shadow: var(--neon-glow); }
.hero__cta { display: flex; gap: 1rem; justify-content: center; }

.btn {
  display: inline-block; padding: 0.85rem 2.2rem;
  font-family: 'Orbitron', sans-serif; font-size: 0.75rem; font-weight: 700;
  letter-spacing: 0.15em; text-decoration: none;
  clip-path: polygon(8px 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
  transition: all 0.3s;
}
.btn--neon {
  background: var(--accent); color: var(--bg);
  box-shadow: var(--neon-glow);
}
.btn--neon:hover { box-shadow: var(--neon-glow-strong); transform: translateY(-2px); }
.btn--outline-neon {
  background: transparent; border: 1px solid var(--accent);
  color: var(--accent);
}
.btn--outline-neon:hover { background: var(--accent); color: var(--bg); }

/* --- Reveal --- */
.reveal {
  opacity: 0; transform: translateY(50px) perspective(600px) rotateX(5deg);
  transition: opacity 0.7s cubic-bezier(0.22,1,0.36,1), transform 0.7s cubic-bezier(0.22,1,0.36,1);
}
.reveal--visible { opacity: 1; transform: translateY(0) perspective(600px) rotateX(0); }

/* --- About --- */
.about__grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 3rem; align-items: center; }
.neon-border {
  border: 1px solid var(--accent);
  box-shadow: var(--neon-glow), inset var(--neon-glow);
  padding: 2rem;
}
.about__photo-inner {
  aspect-ratio: 3/4;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.5rem;
  color: var(--text-secondary);
}
.about__photo-inner span { font-family: 'Orbitron', sans-serif; font-size: 0.7rem; letter-spacing: 0.15em; }
.about__text p { font-size: 1rem; color: var(--text-secondary); line-height: 1.8; margin-bottom: 2rem; }
.about__stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin-bottom: 1.5rem; }
.stat { text-align: center; padding: 1rem; }
.stat__number {
  font-family: 'Orbitron', sans-serif; font-size: 2rem; font-weight: 800;
  color: var(--accent); text-shadow: var(--neon-glow); line-height: 1;
}
.stat__number::after { content: '+'; font-size: 0.5em; }
.stat__label { font-family: 'Orbitron', sans-serif; font-size: 0.6rem; color: var(--text-secondary); letter-spacing: 0.15em; margin-top: 0.3rem; }
.about__languages { display: flex; gap: 0.8rem; flex-wrap: wrap; }

/* --- Timeline --- */
.timeline { max-width: 800px; margin: 0 auto; position: relative; }
.timeline__line { position: absolute; left: 0; top: 0; bottom: 0; width: 2px; background: linear-gradient(to bottom, var(--accent), transparent); box-shadow: var(--neon-glow); }
.timeline__item { position: relative; padding-left: 2.5rem; margin-bottom: 2rem; }
.timeline__marker {
  position: absolute; left: -4px; top: 1rem;
  width: 10px; height: 10px; background: var(--accent);
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
  box-shadow: var(--neon-glow);
}
.timeline__card { padding: 1.5rem; }
.timeline__date { font-family: 'Orbitron', sans-serif; font-size: 0.7rem; color: var(--accent); letter-spacing: 0.15em; text-shadow: var(--neon-glow); }
.timeline__card h3 { font-family: 'Orbitron', sans-serif; font-size: 0.95rem; font-weight: 700; color: var(--heading); margin: 0.5rem 0 0.3rem; letter-spacing: 0.05em; }
.timeline__company { font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 0.8rem; }
.badge-neon {
  display: inline-block; padding: 0.15rem 0.5rem;
  border: 1px solid var(--accent); color: var(--accent);
  font-family: 'Orbitron', sans-serif; font-size: 0.55rem; font-weight: 700;
  letter-spacing: 0.15em; text-shadow: var(--neon-glow);
}
.timeline__card ul { list-style: none; }
.timeline__card li {
  font-size: 0.85rem; color: var(--text-secondary);
  padding: 0.3rem 0 0.3rem 1rem; position: relative;
}
.timeline__card li::before {
  content: '>'; position: absolute; left: 0;
  color: var(--accent); font-family: 'Orbitron', sans-serif; font-size: 0.7rem;
}

/* --- Skills --- */
.skills__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; }
.skills__category { padding: 1.5rem; }
.skills__category h3 { font-family: 'Orbitron', sans-serif; font-size: 0.85rem; font-weight: 700; color: var(--heading); margin-bottom: 1rem; letter-spacing: 0.08em; }
.skills__tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }

/* --- Education --- */
.education__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; margin-bottom: 2rem; }
.education__card { padding: 1.5rem; text-align: center; }
.education__icon { font-size: 2rem; margin-bottom: 0.8rem; }
.education__card h3 { font-family: 'Orbitron', sans-serif; font-size: 0.85rem; font-weight: 700; color: var(--heading); margin-bottom: 0.3rem; letter-spacing: 0.05em; }
.education__card p { font-size: 0.85rem; color: var(--text-secondary); }
.education__status { display: inline-block; margin-top: 0.6rem; font-family: 'Orbitron', sans-serif; font-size: 0.65rem; color: var(--accent); letter-spacing: 0.15em; text-shadow: var(--neon-glow); }
.education__extras { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.education__extra-group { padding: 1.5rem; }
.education__extra-group h3 { font-family: 'Orbitron', sans-serif; font-size: 0.8rem; font-weight: 700; color: var(--heading); margin-bottom: 1rem; letter-spacing: 0.08em; }
.education__extra-items { display: flex; flex-wrap: wrap; gap: 0.5rem; }

/* --- Portfolio --- */
.portfolio__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; }
.portfolio__card { padding: 2rem; }
.portfolio__icon { font-size: 2.5rem; margin-bottom: 1rem; }
.portfolio__card h3 { font-family: 'Orbitron', sans-serif; font-size: 0.9rem; font-weight: 700; color: var(--heading); margin-bottom: 0.6rem; letter-spacing: 0.05em; }
.portfolio__card p { font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 1rem; }
.portfolio__tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }

/* --- Contact --- */
.contact__content { max-width: 600px; margin: 0 auto; padding: 2.5rem; text-align: center; }
.contact__content p { font-size: 0.95rem; color: var(--text-secondary); margin-bottom: 2rem; }
.contact__links { display: flex; flex-direction: column; align-items: center; gap: 0.8rem; margin-bottom: 2rem; }
.contact__link { text-decoration: none; }

/* --- Footer --- */
.footer { padding: 2rem 0; text-align: center; position: relative; z-index: 1; }
.footer p { font-family: 'Orbitron', sans-serif; font-size: 0.65rem; color: var(--text-secondary); letter-spacing: 0.1em; }

/* --- Back to Top --- */
.back-to-top {
  position: fixed; bottom: 2rem; right: 2rem; z-index: 100;
  width: 44px; height: 44px;
  background: var(--bg-card); border: 1px solid var(--border); color: var(--accent);
  display: flex; align-items: center; justify-content: center; cursor: pointer;
  clip-path: polygon(4px 0, 100% 0, calc(100% - 4px) 100%, 0 100%);
  opacity: 0; visibility: hidden; transition: all 0.3s;
}
.back-to-top--visible { opacity: 1; visibility: visible; }
.back-to-top:hover { background: var(--accent); color: var(--bg); box-shadow: var(--neon-glow); }

/* --- Responsive --- */
@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__menu-btn { display: flex; }
  .about__grid { grid-template-columns: 1fr; }
  .about__photo { display: none; }
  .about__stats { grid-template-columns: repeat(2, 1fr); }
  .skills__grid { grid-template-columns: 1fr; }
  .education__grid { grid-template-columns: 1fr; }
  .education__extras { grid-template-columns: 1fr; }
  .portfolio__grid { grid-template-columns: 1fr; }
  .timeline__line { display: none; }
  .timeline__marker { display: none; }
  .timeline__item { padding-left: 0; }
}