/* ===== CSS Variables – Hacker theme ===== */
:root {
  --bg-dark: #000000;
  --bg-card: #080808;
  --bg-card-hover: #0c0c0c;
  --accent: #00ff41;
  --accent-light: #33ff66;
  --accent-dim: rgba(0, 255, 65, 0.15);
  --accent-glow: rgba(0, 255, 65, 0.4);
  --hacker-green: #00ff41;
  --hacker-green-dim: rgba(0, 255, 65, 0.18);
  --hacker-green-glow: rgba(0, 255, 65, 0.35);
  --text: #c8ffc8;
  --text-muted: rgba(0, 255, 65, 0.35);
  --text-muted-solid: #7a9f7a;
  --border: rgba(0, 255, 65, 0.12);
  --font-sans: "DM Sans", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", monospace;
  --radius: 6px;
  --radius-lg: 10px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-glow: 0 0 30px var(--accent-glow);
  /* 3D depth */
  --perspective: 1200px;
  --depth-1: 0 2px 4px rgba(0,0,0,0.2), 0 4px 12px rgba(0,0,0,0.15);
  --depth-2: 0 4px 8px rgba(0,0,0,0.25), 0 8px 24px rgba(0,0,0,0.2), 0 0 0 1px rgba(0,0,0,0.1);
  --depth-3: 0 12px 24px rgba(0,0,0,0.35), 0 24px 48px rgba(0,0,0,0.25), 0 0 0 1px rgba(0,0,0,0.08);
  --depth-lift: 0 20px 40px -12px rgba(0,0,0,0.5), 0 0 0 1px rgba(0,255,65,0.1);
  --btn-3d-bottom: 0 5px 0 rgba(0, 180, 50, 0.8), 0 8px 20px rgba(0,0,0,0.35);
  --btn-3d-hover: 0 8px 0 rgba(0, 180, 50, 0.6), 0 14px 28px rgba(0,0,0,0.4), 0 0 30px var(--accent-glow);
}

/* Rainbow glow animation */
@keyframes rainbow-glow {
  0%   { box-shadow: 0 0 16px rgba(255, 80, 80, 0.7), 0 0 24px rgba(255, 120, 80, 0.4); border-color: rgba(255, 100, 100, 0.6); }
  16%  { box-shadow: 0 0 16px rgba(255, 180, 80, 0.7), 0 0 24px rgba(255, 200, 100, 0.4); border-color: rgba(255, 180, 80, 0.6); }
  33%  { box-shadow: 0 0 16px rgba(255, 255, 80, 0.7), 0 0 24px rgba(200, 255, 100, 0.4); border-color: rgba(255, 255, 100, 0.6); }
  50%  { box-shadow: 0 0 16px rgba(80, 255, 120, 0.7), 0 0 24px rgba(100, 255, 180, 0.4); border-color: rgba(80, 255, 120, 0.6); }
  66%  { box-shadow: 0 0 16px rgba(80, 150, 255, 0.7), 0 0 24px rgba(100, 180, 255, 0.4); border-color: rgba(80, 150, 255, 0.6); }
  83%  { box-shadow: 0 0 16px rgba(180, 80, 255, 0.7), 0 0 24px rgba(200, 120, 255, 0.4); border-color: rgba(180, 80, 255, 0.6); }
  100% { box-shadow: 0 0 16px rgba(255, 80, 80, 0.7), 0 0 24px rgba(255, 120, 80, 0.4); border-color: rgba(255, 100, 100, 0.6); }
}
@keyframes rainbow-glow-panel {
  0%   { box-shadow: 0 0 20px rgba(255, 80, 80, 0.35), inset 0 0 30px rgba(255, 80, 80, 0.03); border-color: rgba(255, 100, 100, 0.35); }
  16%  { box-shadow: 0 0 20px rgba(255, 180, 80, 0.35), inset 0 0 30px rgba(255, 180, 80, 0.03); border-color: rgba(255, 180, 80, 0.35); }
  33%  { box-shadow: 0 0 20px rgba(255, 255, 80, 0.35), inset 0 0 30px rgba(255, 255, 80, 0.03); border-color: rgba(255, 255, 100, 0.35); }
  50%  { box-shadow: 0 0 20px rgba(80, 255, 120, 0.35), inset 0 0 30px rgba(80, 255, 120, 0.03); border-color: rgba(80, 255, 120, 0.35); }
  66%  { box-shadow: 0 0 20px rgba(80, 150, 255, 0.35), inset 0 0 30px rgba(80, 150, 255, 0.03); border-color: rgba(80, 150, 255, 0.35); }
  83%  { box-shadow: 0 0 20px rgba(180, 80, 255, 0.35), inset 0 0 30px rgba(180, 80, 255, 0.03); border-color: rgba(180, 80, 255, 0.35); }
  100% { box-shadow: 0 0 20px rgba(255, 80, 80, 0.35), inset 0 0 30px rgba(255, 80, 80, 0.03); border-color: rgba(255, 100, 100, 0.35); }
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; min-height: 100%; }
body {
  font-family: var(--font-sans);
  background: var(--bg-dark);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}
/* ===== Background – Hacker Anonymous style ===== */
body::before {
  content: "";
  position: fixed;
  top: -30%;
  right: -20%;
  width: 70%;
  height: 80%;
  background: radial-gradient(ellipse, var(--hacker-green-dim) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
  animation: bg-float 20s ease-in-out infinite;
}
body::after {
  content: "";
  position: fixed;
  bottom: -25%;
  left: -15%;
  width: 55%;
  height: 70%;
  background: radial-gradient(ellipse, rgba(0, 255, 65, 0.06) 0%, transparent 55%);
  pointer-events: none;
  z-index: 0;
  animation: bg-float 18s ease-in-out infinite reverse;
}
@keyframes bg-float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(2%, -2%) scale(1.02); }
  66% { transform: translate(-1%, 1%) scale(0.98); }
}

.bg-graphics {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}
.bg-tech-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 255, 65, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 65, 0.1) 1px, transparent 1px);
  background-size: 36px 36px;
}
.bg-graphics .bg-scanlines {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 1px,
    rgba(0, 0, 0, 0.25) 1px,
    rgba(0, 0, 0, 0.25) 2px
  );
  pointer-events: none;
  animation: scanline-flicker 8s ease-in-out infinite;
}
@keyframes scanline-flicker {
  0%, 90%, 100% { opacity: 1; }
  92% { opacity: 0.97; }
  96% { opacity: 1; }
}
.bg-graphics .bg-vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 35%, rgba(0, 0, 0, 0.6) 100%);
  pointer-events: none;
}
.bg-binary,
.bg-hex {
  position: absolute;
  inset: 0;
  overflow: hidden;
}
.bg-binary .bit,
.bg-hex .char {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 500;
  color: rgba(0, 255, 65, 0.5);
  text-shadow: 0 0 14px var(--hacker-green-glow), 0 0 28px rgba(0, 255, 65, 0.2);
  animation: bit-fall linear infinite;
  white-space: nowrap;
}
.bg-hex .char {
  font-size: 13px;
  color: rgba(0, 255, 65, 0.35);
  animation: bit-fall-slow linear infinite;
}
@keyframes bit-fall {
  0% { transform: translateY(-15%); opacity: 0; }
  8% { opacity: 0.6; }
  92% { opacity: 0.4; }
  100% { transform: translateY(115vh); opacity: 0; }
}
@keyframes bit-fall-slow {
  0% { transform: translateY(-10%); opacity: 0; }
  12% { opacity: 0.45; }
  88% { opacity: 0.25; }
  100% { transform: translateY(110vh); opacity: 0; }
}
.bg-binary .bit:nth-child(odd) { color: rgba(0, 255, 65, 0.45); }
.bg-binary .bit.fast { animation-duration: 12s; }
.bg-binary .bit.medium { animation-duration: 18s; }
.bg-binary .bit.slow { animation-duration: 26s; }
.bg-hex .char.fast { animation-duration: 20s; }
.bg-hex .char.slow { animation-duration: 35s; }

/* ===== Sprinkles mouse effect ===== */
.sprinkles-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 9999;
  overflow: hidden;
}
@media (hover: none) {
  .sprinkles-container { display: none !important; }
}
.sprinkle {
  position: fixed;
  pointer-events: none;
  animation: sprinkle-fade 2.2s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}
.sprinkle.round { border-radius: 50%; }
.sprinkle.pill { border-radius: 999px; }
.sprinkle.cursor-dot { border-radius: 50%; animation-duration: 1.4s; }
.sprinkle.cursor-sparkle {
  border-radius: 50%;
  box-shadow: 0 0 8px currentColor, 0 0 12px currentColor;
  animation: sprinkle-fade 1.2s ease-out forwards;
}
.sprinkle.cursor-trail { border-radius: 50%; animation: sprinkle-fade 0.9s ease-out forwards; }
.sprinkle.cursor-bubble {
  border-radius: 50%;
  animation: sprinkle-fade 1.6s ease-out forwards;
  box-shadow: inset 0 -2px 4px rgba(255,255,255,0.2);
}
.sprinkle.cursor-star {
  border-radius: 0;
  background: transparent !important;
  animation: sprinkle-fade 1.3s ease-out forwards;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85em;
  line-height: 1;
}
.sprinkle.cursor-star::before {
  content: "\u2605";
}
.sprinkle.cursor-confetti {
  border-radius: 2px;
  animation: sprinkle-fade 1.2s ease-out forwards;
}
.sprinkle.cursor-ripple {
  background: transparent !important;
  animation: ripple-expand 1.1s ease-out forwards;
}
@keyframes ripple-expand {
  0% { opacity: 0.8; transform: translate(0, 0) scale(0.3); border-width: 2px; }
  100% { opacity: 0; transform: translate(var(--dx, 0), var(--dy, 0)) scale(1.5); border-width: 1px; }
}
.sprinkle.cursor-glow {
  box-shadow: 0 0 12px currentColor, 0 0 24px currentColor;
  animation: sprinkle-fade 1.4s ease-out forwards;
}
.sprinkle.cursor-firefly {
  box-shadow: 0 0 6px currentColor, 0 0 12px currentColor;
  animation: sprinkle-fade 1.8s ease-out forwards;
}
@keyframes sprinkle-fade {
  0% {
    opacity: 0.92;
    transform: translate(0, 0) scale(1) rotate(0deg);
  }
  100% {
    opacity: 0;
    transform: translate(var(--dx, 0), var(--dy, 0)) scale(0.15) rotate(var(--rot, 0deg));
  }
}

/* ===== Nav top social (GitHub, LinkedIn) – RGB shine ===== */
.nav-social-top {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-left: auto;
  margin-right: 1.5rem;
  flex-shrink: 0;
  padding-left: 1rem;
}
.nav-social-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  color: var(--text);
  text-decoration: none;
  transition: transform var(--transition);
}
.nav-social-item:hover { transform: scale(1.1); }
.nav-social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  animation: nav-social-rgb 3s ease-in-out infinite;
  box-shadow: 0 0 20px currentColor, 0 0 40px currentColor;
}
.nav-social-icon svg {
  width: 22px;
  height: 22px;
  filter: drop-shadow(0 0 6px currentColor);
}
.nav-social-label {
  font-size: 0.7rem;
  font-weight: 600;
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
  color: var(--text-muted-solid);
  transition: color var(--transition);
}
.nav-social-item:hover .nav-social-label { color: var(--accent); }
@keyframes nav-social-rgb {
  0%, 100% { color: #00ff41; box-shadow: 0 0 20px #00ff41, 0 0 40px rgba(0, 255, 65, 0.5); }
  16% { color: #00ffff; box-shadow: 0 0 20px #00ffff, 0 0 40px rgba(0, 255, 255, 0.5); }
  33% { color: #ff00ff; box-shadow: 0 0 20px #ff00ff, 0 0 40px rgba(255, 0, 255, 0.5); }
  50% { color: #ffff00; box-shadow: 0 0 20px #ffff00, 0 0 40px rgba(255, 255, 0, 0.5); }
  66% { color: #ff6600; box-shadow: 0 0 20px #ff6600, 0 0 40px rgba(255, 102, 0, 0.5); }
  83% { color: #00ff88; box-shadow: 0 0 20px #00ff88, 0 0 40px rgba(0, 255, 136, 0.5); }
}
a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition), transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
}
img { max-width: 100%; height: auto; display: block; }
button { cursor: pointer; }

/* ===== Typography ===== */
h1, h2, h3 { font-weight: 700; line-height: 1.2; }
h1 { font-size: clamp(2.5rem, 6vw, 4rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); margin-bottom: 1rem; }
h3 { font-size: 1.25rem; }
section { padding: clamp(4rem, 10vw, 6rem) 1.5rem; max-width: 1200px; margin: 0 auto; }

/* ===== Layout & Container (3D context) ===== */
main {
  position: relative;
  z-index: 1;
  perspective: var(--perspective);
  transform-style: preserve-3d;
}
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1rem 1.5rem;
  background: rgba(0, 0, 0, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 255, 65, 0.08);
  box-shadow: 0 4px 20px rgba(0,0,0,0.4), 0 1px 0 rgba(0,255,65,0.06);
  transition: transform var(--transition), background var(--transition), box-shadow var(--transition);
}
.nav.scrolled { background: rgba(0, 0, 0, 0.95); box-shadow: 0 8px 32px rgba(0,0,0,0.5), 0 1px 0 rgba(0,255,65,0.08); }
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 0.75rem;
}
.logo {
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--text);
  letter-spacing: -0.02em;
  cursor: pointer;
  min-width: 0;
  flex-shrink: 0;
}
.logo-wrap {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  min-width: 0;
  max-width: min(220px, 32vw);
  min-height: 1.6em;
  justify-content: center;
  overflow: hidden;
  flex-shrink: 1;
}
.logo {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
  text-decoration: none;
}
.logo:hover { color: var(--accent); transform: scale(1.02); text-shadow: 0 0 20px var(--accent-glow); }
.logo:hover .logo-cursor { opacity: 1; }
.logo-slot {
  display: inline-flex;
  align-items: center;
  min-width: 10ch;
  max-width: 100%;
  min-height: 1.4em;
  overflow: hidden;
}
.logo-slot .logo-text {
  display: inline;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: clip;
}
.logo-cursor {
  display: inline-block;
  width: 0.15em;
  height: 1em;
  margin-left: 2px;
  background: var(--accent);
  animation: logo-cursor-blink 0.8s step-end infinite;
  box-shadow: 0 0 8px var(--accent-glow);
  vertical-align: -0.05em;
  flex-shrink: 0;
}
@keyframes logo-cursor-blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}
/* Logo "done" effects when line is complete – pick one via class on .logo-slot */

/* Effect 1: Signal lock (default) – quick flicker then stable, like terminal syncing */
.logo-slot.logo-glitch {
  position: relative;
}
.logo-slot.logo-glitch::after {
  content: "";
  position: absolute;
  inset: -2px;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 255, 65, 0.04) 2px,
    rgba(0, 255, 65, 0.04) 3px
  );
  pointer-events: none;
  animation: logo-scanlines 0.14s steps(1) infinite;
}
.logo-slot.logo-glitch .logo-text {
  animation: logo-effect-signal 2.8s steps(1) forwards;
}
@keyframes logo-scanlines {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}
@keyframes logo-effect-signal {
  0% { opacity: 0.3; text-shadow: none; transform: translate(0); }
  2% { opacity: 1; text-shadow: 0 0 6px var(--accent-glow); transform: translate(0); }
  4% { opacity: 0.5; text-shadow: none; transform: translate(1px, 0); }
  6% { opacity: 1; text-shadow: 0 0 8px var(--accent-glow); transform: translate(0); }
  8% { opacity: 0.6; text-shadow: none; transform: translate(-1px, 0); }
  10% { opacity: 1; text-shadow: 0 0 10px var(--accent-glow); transform: translate(0); }
  12% { opacity: 0.4; text-shadow: none; transform: translate(0); }
  14% { opacity: 1; text-shadow: 0 0 12px var(--accent-glow); transform: translate(0); }
  16% { opacity: 0.7; text-shadow: none; transform: translate(1px, 0); }
  18% { opacity: 1; text-shadow: 0 0 8px var(--accent-glow); transform: translate(0); }
  20% { opacity: 0.9; text-shadow: 0 0 6px var(--accent); transform: translate(0); }
  22%, 100% {
    opacity: 1;
    text-shadow: 0 0 10px var(--accent-glow), 0 0 20px rgba(0, 255, 65, 0.25);
    transform: translate(0);
  }
}

/* Effect 2: Pulse – smooth breathing glow (use class logo-glitch-pulse on #logoSlot in JS to try) */
.logo-slot.logo-glitch-pulse .logo-text {
  animation: logo-effect-pulse 1.5s ease-in-out infinite;
}
@keyframes logo-effect-pulse {
  0%, 100% { text-shadow: 0 0 6px var(--accent-glow); opacity: 0.95; }
  50% { text-shadow: 0 0 18px var(--accent-glow), 0 0 32px rgba(0, 255, 65, 0.35); opacity: 1; }
}

/* Effect 3: Static – fast noise flicker (use class logo-glitch-static on #logoSlot to try) */
.logo-slot.logo-glitch-static .logo-text {
  animation: logo-effect-static 0.8s steps(1) infinite;
}
@keyframes logo-effect-static {
  0%, 100% { opacity: 1; text-shadow: 0 0 8px var(--accent-glow); }
  12.5% { opacity: 0.85; text-shadow: 0 0 4px var(--accent); }
  25% { opacity: 1; text-shadow: 0 0 12px var(--accent-glow); }
  37.5% { opacity: 0.9; text-shadow: none; }
  50% { opacity: 1; text-shadow: 0 0 6px var(--accent-glow); }
  62.5% { opacity: 0.88; text-shadow: 0 0 10px var(--accent); }
  75% { opacity: 1; text-shadow: 0 0 8px var(--accent-glow); }
  87.5% { opacity: 0.92; text-shadow: 0 0 2px var(--accent); }
}
.nav-links {
  display: flex;
  gap: 0.7rem;
  align-items: center;
  padding: 0.5rem 0;
  margin-top: 0.75rem;
  flex-shrink: 0;
}
.nav-links a {
  color: var(--text);
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  position: relative;
  padding: 0.35rem 0.1rem;
  letter-spacing: 0.02em;
  transition: transform var(--transition), color var(--transition);
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
  transition: width var(--transition);
}
.nav-links a:hover {
  color: var(--accent);
  text-shadow: 0 0 14px var(--accent-glow);
  transform: scale(1.08);
}
.nav-links a:hover::after { width: 100%; }
.nav-cta {
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.2rem;
  background: var(--accent);
  color: #000;
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 0.9rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.nav-cta:hover { background: var(--accent-light); color: #000; box-shadow: var(--shadow-glow), 0 0 20px var(--accent-glow); transform: translateY(-2px); }
.menu-btn { display: none; background: none; border: none; color: var(--text); cursor: pointer; padding: 0.5rem; }

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 5rem;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -30%;
  width: 80%;
  height: 150%;
  background: radial-gradient(ellipse, var(--hacker-green-dim) 0%, transparent 70%);
  pointer-events: none;
  animation: float 15s ease-in-out infinite;
}
.hero-content {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  align-items: center;
}
.hero-text { position: relative; z-index: 1; }
.hero-badge {
  display: inline-block;
  padding: 0.4rem 0.9rem;
  background: rgba(0, 255, 65, 0.08);
  color: var(--accent);
  border-radius: 0;
  font-size: 0.8rem;
  font-weight: 700;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 1.25rem;
  border: 1px solid rgba(0, 255, 65, 0.4);
  box-shadow: 0 3px 0 rgba(0, 180, 50, 0.2), 0 6px 16px rgba(0,0,0,0.25), inset 0 1px 0 rgba(255,255,255,0.05);
  animation: fadeInUp 0.8s ease-out;
  transition: transform var(--transition), box-shadow var(--transition);
}
.hero-badge:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 5px 0 rgba(0, 180, 50, 0.25), 0 10px 24px rgba(0,0,0,0.3), 0 0 24px var(--accent-glow), inset 0 1px 0 rgba(255,255,255,0.08);
}
.hero h1 {
  margin-bottom: 1rem;
  animation: fadeInUp 0.8s ease-out 0.1s both;
  text-shadow: 0 2px 0 rgba(0,0,0,0.3), 0 4px 8px rgba(0,0,0,0.25), 0 0 40px var(--accent-glow);
}
.hero-tagline {
  font-size: 1.2rem;
  color: var(--text-muted-solid);
  font-family: var(--font-mono);
  margin-bottom: 1.5rem;
  max-width: 540px;
  animation: fadeInUp 0.8s ease-out 0.2s both;
}
.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  animation: fadeInUp 0.8s ease-out 0.3s both;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.9rem 1.75rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  font-family: var(--font-sans);
}
.btn-primary {
  background: linear-gradient(180deg, var(--accent-light) 0%, var(--accent) 50%, #00cc35 100%);
  color: #000;
  border: 1px solid rgba(0, 255, 65, 0.6);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  box-shadow: var(--btn-3d-bottom), 0 0 20px var(--accent-glow);
  transition: all var(--transition);
}
.btn-primary:hover {
  transform: translateY(-4px);
  box-shadow: var(--btn-3d-hover);
  background: linear-gradient(180deg, #44ff66 0%, var(--accent-light) 50%, var(--accent) 100%);
  color: #000;
}
.btn-primary:active {
  transform: translateY(1px);
  box-shadow: 0 2px 0 rgba(0, 180, 50, 0.6), 0 4px 12px rgba(0,0,0,0.3);
}
.btn-secondary {
  background: transparent;
  color: var(--accent);
  border: 2px solid rgba(0, 255, 65, 0.5);
  font-family: var(--font-mono);
  box-shadow: 0 3px 0 rgba(0, 255, 65, 0.15), inset 0 1px 0 rgba(255,255,255,0.03);
}
.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 5px 0 rgba(0, 255, 65, 0.2), 0 0 20px var(--accent-glow);
  transform: translateY(-3px);
}
.btn-secondary:active {
  transform: translateY(1px);
  box-shadow: 0 1px 0 rgba(0, 255, 65, 0.2);
}
.hero-avatar {
  position: relative;
  z-index: 1;
  display: block;
  animation: fadeInRight 1s ease-out 0.2s both;
}
.hero-avatar-wrap {
  width: 320px;
  height: 320px;
  border-radius: 4px;
  overflow: hidden;
  border: 2px solid rgba(0, 255, 65, 0.3);
  box-shadow: 0 8px 0 rgba(0, 60, 20, 0.4), 0 16px 40px rgba(0,0,0,0.4), 0 0 30px rgba(0, 255, 65, 0.15);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), box-shadow var(--transition), border-color var(--transition);
  cursor: pointer;
  transform-style: preserve-3d;
}
.hero-avatar-wrap:hover {
  transform: scale(1.03) rotateY(-3deg) rotateX(2deg);
  box-shadow: 0 16px 0 rgba(0, 60, 20, 0.3), 0 28px 56px rgba(0,0,0,0.45), 0 0 50px var(--accent-glow);
  border-color: var(--accent);
}
.hero-avatar-wrap img {
  display: block;
  width: 100%;
  height: 100%;
  min-width: 100%;
  min-height: 100%;
  object-fit: cover;
}

/* ===== Section Titles ===== */
.section-label {
  font-size: 0.8rem;
  font-weight: 700;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 0.5rem;
  text-shadow: 0 0 20px var(--accent-glow);
}
.section-label::before { content: "> "; opacity: 0.8; }
.section-title {
  margin-bottom: 2.5rem;
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
  text-shadow: 0 1px 0 rgba(0,0,0,0.3), 0 2px 4px rgba(0,0,0,0.2), 0 0 24px var(--accent-glow);
}

/* ===== About ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}
.about-text p { color: var(--text-muted-solid); margin-bottom: 1rem; font-size: 1.05rem; line-height: 1.7; }
.about-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-top: 1.5rem;
}
.about-meta span { display: flex; align-items: center; gap: 0.5rem; color: var(--text-muted-solid); font-size: 0.95rem; font-family: var(--font-mono); }
.about-meta svg { width: 18px; height: 18px; color: var(--accent); flex-shrink: 0; filter: drop-shadow(0 0 6px var(--accent-glow)); }
.skills-list { display: flex; flex-direction: column; gap: 1rem; }
.skill-row { display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.skill-name { font-weight: 500; font-size: 0.95rem; }
.skill-bar-wrap {
  flex: 1;
  max-width: 200px;
  height: 10px;
  background: var(--bg-card);
  border-radius: 100px;
  overflow: hidden;
  box-shadow: inset 0 2px 6px rgba(0,0,0,0.4), 0 1px 0 rgba(255,255,255,0.03);
}
.skill-bar {
  height: 100%;
  background: linear-gradient(180deg, var(--accent-light) 0%, var(--accent) 40%, #00cc35 100%);
  box-shadow: 0 0 10px var(--accent-glow), 0 2px 0 rgba(0, 180, 50, 0.5), inset 0 1px 0 rgba(255,255,255,0.2);
  border-radius: 100px;
  transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
  width: 0;
}

/* ===== Projects ===== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.5rem;
}
.projects-grid { perspective: 1000px; }
.project-card {
  background: var(--bg-card);
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--depth-2), 0 6px 0 rgba(0, 30, 10, 0.25);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), border-color var(--transition), box-shadow var(--transition);
  animation: fadeInUp 0.6s ease-out both;
  cursor: pointer;
  transform-style: preserve-3d;
}
.project-card:hover {
  transform: translateY(-12px) rotateX(4deg) rotateY(-2deg);
  border-color: rgba(0, 255, 65, 0.5);
  box-shadow: var(--depth-lift), 0 0 30px var(--accent-glow), 0 12px 0 rgba(0, 30, 10, 0.2);
}
.project-card .img-wrap {
  height: 200px;
  overflow: hidden;
  position: relative;
  box-shadow: inset 0 -20px 30px rgba(0,0,0,0.2);
}
.project-card .img-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, var(--bg-card) 100%);
  opacity: 0.6;
  transition: opacity var(--transition);
}
.project-card:hover .img-wrap::after { opacity: 0.3; }
.project-card img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition); }
.project-card:hover img { transform: scale(1.08) translateZ(4px); }
.project-card .content { padding: 1.5rem; }
.project-card h3 { margin-bottom: 0.5rem; }
.project-card p { color: var(--text-muted-solid); font-size: 0.95rem; margin-bottom: 1rem; line-height: 1.5; }
.project-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1rem; }
.project-tags span {
  font-size: 0.7rem;
  padding: 0.25rem 0.6rem;
  background: rgba(0, 255, 65, 0.08);
  color: var(--accent);
  border: 1px solid rgba(0, 255, 65, 0.25);
  border-radius: 0;
  font-weight: 600;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.project-links { display: flex; gap: 0.75rem; }
.project-links a {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--text-muted-solid);
  cursor: pointer;
  transition: color var(--transition), transform var(--transition), text-shadow var(--transition);
}
.project-links a:hover { color: var(--accent); transform: translateX(6px); text-shadow: 0 0 12px var(--accent-glow); }

/* ===== Experience ===== */
.exp-list { display: flex; flex-direction: column; gap: 1.5rem; }
.exp-list { perspective: 1000px; }
.exp-item {
  background: var(--bg-card);
  border-radius: 4px;
  padding: 1.5rem;
  border-left: 4px solid rgba(0, 255, 65, 0.4);
  border-top: 1px solid var(--border);
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--depth-1), 0 4px 0 rgba(0, 25, 8, 0.2);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), border-color var(--transition), box-shadow var(--transition);
  animation: fadeInUp 0.6s ease-out both;
  cursor: default;
  transform-style: preserve-3d;
}
.exp-item:hover {
  border-left-color: var(--accent);
  transform: translateX(10px) translateZ(8px) rotateY(-1deg);
  box-shadow: var(--depth-2), 0 6px 0 rgba(0, 25, 8, 0.15), 0 0 25px var(--accent-glow);
}
.exp-item h3 { margin-bottom: 0.25rem; font-family: var(--font-mono); }
.exp-item .company { color: var(--accent); font-size: 0.95rem; font-family: var(--font-mono); margin-bottom: 0.5rem; text-shadow: 0 0 12px var(--accent-glow); }
.exp-item .period { font-size: 0.8rem; color: var(--text-muted-solid); margin-bottom: 0.5rem; font-family: var(--font-mono); }
.exp-item .summary { color: var(--text-muted-solid); font-size: 0.95rem; }

/* ===== Certificates ===== */
.certificates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.25rem;
}
.certificates-grid { perspective: 1000px; }
.certificate-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 1.75rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--depth-1), 0 4px 0 rgba(0, 30, 10, 0.2);
  cursor: pointer;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  text-align: center;
  font-family: var(--font-sans);
  transform-style: preserve-3d;
}
.certificate-card:hover {
  border-color: var(--accent);
  box-shadow: var(--depth-lift), 0 0 24px var(--accent-glow), 0 8px 0 rgba(0, 30, 10, 0.15);
  transform: translateY(-8px) rotateX(5deg);
}
.certificate-card-icon {
  font-size: 2rem;
  color: var(--accent);
  line-height: 1;
}
.certificate-card-title {
  font-weight: 600;
  font-size: 1rem;
  color: var(--text);
}
.certificate-card-hint {
  font-size: 0.8rem;
  color: var(--text-muted-solid);
  font-family: var(--font-mono);
}

/* ===== Contact ===== */
.contact-wrap {
  max-width: 600px;
  margin: 0 auto;
  background: var(--bg-card);
  border-radius: 4px;
  padding: 2.5rem;
  border: 1px solid var(--border);
  animation: fadeInUp 0.6s ease-out;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  box-shadow: var(--depth-2), 0 8px 0 rgba(0, 35, 12, 0.2);
  transform-style: preserve-3d;
}
.contact-wrap:hover {
  border-color: rgba(0, 255, 65, 0.3);
  box-shadow: var(--depth-3), 0 12px 0 rgba(0, 35, 12, 0.15), 0 0 40px var(--accent-glow), inset 0 0 60px rgba(0, 255, 65, 0.02);
  transform: translateY(-4px) rotateX(2deg);
}
.contact-wrap h2 { margin-bottom: 0.5rem; }
.contact-wrap .section-label { margin-bottom: 1.5rem; }
.form-group { margin-bottom: 1.25rem; }
.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.9rem 1rem;
  background: var(--bg-dark);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1rem;
  box-shadow: inset 0 2px 6px rgba(0,0,0,0.3), 0 1px 0 rgba(255,255,255,0.02);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-group input:hover,
.form-group textarea:hover {
  border-color: rgba(255, 255, 255, 0.12);
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: inset 0 2px 6px rgba(0,0,0,0.25), 0 0 0 2px rgba(0, 255, 65, 0.2), 0 0 20px var(--accent-glow);
}
.form-group textarea { min-height: 140px; resize: vertical; }
.contact-wrap .btn-primary { width: 100%; justify-content: center; margin-top: 0.5rem; }
.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
  justify-content: center;
}
.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-muted-solid);
  cursor: pointer;
  box-shadow: 0 4px 0 rgba(0, 25, 8, 0.3), 0 6px 12px rgba(0,0,0,0.25);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), color var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.social-links a:hover {
  color: var(--accent);
  border-color: var(--accent);
  transform: translateY(-6px) scale(1.08);
  box-shadow: 0 8px 0 rgba(0, 25, 8, 0.2), 0 12px 24px rgba(0,0,0,0.3), 0 0 24px var(--accent-glow);
}
.social-links a:active {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 2px 0 rgba(0, 25, 8, 0.3), 0 4px 8px rgba(0,0,0,0.2);
}

/* ===== Footer ===== */
.footer {
  text-align: center;
  padding: 2rem 1.5rem;
  border-top: 1px solid var(--border);
  color: var(--text-muted-solid);
  font-size: 0.9rem;
  font-family: var(--font-mono);
  box-shadow: 0 -4px 20px rgba(0,0,0,0.25), inset 0 1px 0 rgba(0, 255, 65, 0.04);
}
.footer-visits { margin-left: 0.75rem; opacity: 0.9; }

/* ===== Animations ===== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(24px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-3%, -3%) scale(1.02); }
}

/* Scroll-triggered animation */
.reveal { opacity: 0; transform: translateY(30px); }
.reveal.revealed { opacity: 1; transform: translateY(0); }
.reveal .skill-bar { width: var(--level, 0); }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .hero-content { grid-template-columns: 1fr; text-align: center; }
  .hero-tagline { margin-left: auto; margin-right: auto; }
  .hero-buttons { justify-content: center; }
  .hero-avatar {
    display: block;
    margin: 0 auto;
    order: 1;
  }
  .hero-text { order: 0; }
  .hero-avatar-wrap {
    width: 260px;
    height: 260px;
    margin: 0 auto;
  }
  .about-grid { grid-template-columns: 1fr; }
  .about-meta { justify-content: center; }
}

@media (max-width: 768px) {
  .nav { padding: 0.75rem 1rem; }
  .nav-inner {
    gap: 0.75rem;
    padding: 0;
    flex-wrap: nowrap;
    min-width: 0;
  }
  .logo-wrap {
    max-width: min(160px, 45vw);
    min-width: 0;
  }
  .logo { font-size: 1.15rem; }
  .nav-social-top {
    flex-shrink: 0;
    margin-left: auto;
    margin-right: 0.5rem;
    padding-left: 0.5rem;
  }
  .nav-social-icon { width: 36px; height: 36px; }
  .nav-social-icon svg { width: 18px; height: 18px; }
  .nav-social-label { display: none; }
  .nav-links { display: none; }
  .nav-links.active {
    display: flex;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(0, 8, 0, 0.95);
    padding: 1.5rem;
    gap: 1rem;
    border-bottom: 1px solid rgba(0, 255, 65, 0.15);
  }
  .nav-links.active a { font-size: 1.15rem; }
  .menu-btn { display: block; flex-shrink: 0; }
  .projects-grid { grid-template-columns: 1fr; }
  .skill-row { flex-wrap: wrap; }
  .skill-bar-wrap { max-width: 100%; }
}

@media (max-width: 480px) {
  .nav { padding: 0.6rem 0.75rem; }
  .nav-inner { gap: 0.5rem; }
  .logo-wrap { max-width: min(130px, 42vw); }
  .logo { font-size: 0.95rem; }
  .nav-social-top { margin-right: 0.25rem; padding-left: 0.35rem; }
  .nav-social-icon { width: 32px; height: 32px; }
  .nav-social-icon svg { width: 16px; height: 16px; }
  .logo-slot { min-width: 8ch; }
  .hero-avatar { display: block; }
  .hero-avatar-wrap { width: 220px; height: 220px; margin: 0 auto; }
  .hero-buttons { flex-direction: column; }
  .hero-buttons .btn { width: 100%; justify-content: center; }
  .contact-wrap { padding: 1.5rem; }
}

/* Thank you modal (main site) */
.thankyou-modal {
  position: fixed;
  inset: 0;
  z-index: 9998;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}
.thankyou-modal-open { opacity: 1; visibility: visible; }
.thankyou-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  cursor: pointer;
}
.thankyou-modal-box {
  position: relative;
  width: 100%;
  max-width: 400px;
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  text-align: center;
}
.thankyou-modal-box h3 { margin: 0 0 0.75rem; font-size: 1.5rem; color: var(--accent); }
.thankyou-modal-box p { color: var(--text-muted-solid); margin-bottom: 1.5rem; }
.thankyou-modal-box .btn { margin: 0; }

/* PDF view modal (certificates – view only, no download link) */
.pdf-view-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}
.pdf-view-modal.open { opacity: 1; visibility: visible; }
.pdf-view-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  cursor: pointer;
}
.pdf-view-box {
  position: relative;
  width: 100%;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  overflow: hidden;
}
.pdf-view-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.pdf-view-title { margin: 0; font-size: 1.1rem; font-family: var(--font-mono); color: var(--text); }
.pdf-view-close {
  background: none;
  border: none;
  color: var(--text-muted-solid);
  font-size: 1.75rem;
  line-height: 1;
  cursor: pointer;
  padding: 0.25rem;
  transition: color var(--transition);
}
.pdf-view-close:hover { color: var(--accent); }
.pdf-view-body {
  flex: 1;
  min-height: 70vh;
  overflow: hidden;
}
.pdf-view-body iframe {
  width: 100%;
  height: 100%;
  min-height: 70vh;
  border: none;
  background: #1a1a1a;
}