:root {
  --bg: #05070b;
  --bg-top: #102033;
  --panel: rgba(8, 14, 22, 0.82);
  --line: rgba(0, 240, 255, 0.28);
  --cyan: #6cf3ff;
  --magenta: #ff4fd8;
  --violet: #9b7bff;
  --gold: #ffd36a;
  --text: #e8f6ff;
  --muted: #8aa0b5;
  --glow: 0 0 24px rgba(108, 243, 255, 0.18);
  --glow-mix: 0 0 28px rgba(255, 79, 216, 0.16), 0 0 42px rgba(108, 243, 255, 0.14);
  --grid: rgba(108, 243, 255, 0.06);
  --scan: rgba(255, 255, 255, 0.03);
  --status: #35ff9a;
  --float-bg: rgba(5, 7, 11, 0.88);
  --vignette: rgba(0, 0, 0, 0.72);
}

html.light {
  --bg: #eef3f8;
  --bg-top: #d7e8f5;
  --panel: rgba(255, 255, 255, 0.82);
  --line: rgba(14, 90, 140, 0.22);
  --cyan: #0b6f8a;
  --magenta: #b4237a;
  --violet: #5b46c8;
  --gold: #c98912;
  --text: #12202c;
  --muted: #5a7083;
  --glow: 0 0 24px rgba(11, 111, 138, 0.12);
  --glow-mix: 0 0 22px rgba(180, 35, 122, 0.1), 0 0 32px rgba(11, 111, 138, 0.1);
  --grid: rgba(11, 111, 138, 0.08);
  --scan: rgba(18, 32, 44, 0.04);
  --status: #0ea35a;
  --float-bg: rgba(255, 255, 255, 0.9);
  --vignette: rgba(180, 198, 214, 0.35);
}

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

body {
  min-height: 100vh;
  background: radial-gradient(circle at top, var(--bg-top) 0%, var(--bg) 42%);
  color: var(--text);
  font-family: "Noto Sans SC", "Share Tech Mono", sans-serif;
  overflow-x: hidden;
  transition: background 0.25s ease, color 0.25s ease;
}

.fx-orbs,
.particles,
.circuit-bg,
.grid-bg,
.scan-beam,
.laser-x,
.laser-y,
.scanlines,
.vignette,
.cursor-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.fx-orbs {
  overflow: hidden;
  z-index: 0;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(40px);
  opacity: 0.55;
  animation: drift 16s ease-in-out infinite;
}

.orb-cyan {
  width: 420px;
  height: 420px;
  left: -80px;
  top: -40px;
  background: radial-gradient(circle, rgba(108, 243, 255, 0.55), transparent 68%);
}

.orb-magenta {
  width: 360px;
  height: 360px;
  right: -60px;
  top: 18%;
  background: radial-gradient(circle, rgba(255, 79, 216, 0.42), transparent 68%);
  animation-delay: -5s;
}

.orb-violet {
  width: 480px;
  height: 480px;
  left: 28%;
  bottom: -180px;
  background: radial-gradient(circle, rgba(155, 123, 255, 0.38), transparent 70%);
  animation-delay: -9s;
}

.orb-gold {
  width: 280px;
  height: 280px;
  right: 18%;
  bottom: 8%;
  background: radial-gradient(circle, rgba(255, 211, 106, 0.28), transparent 70%);
  animation-delay: -12s;
}

.particles {
  z-index: 0;
  opacity: 0.7;
}

.scan-beam {
  background: linear-gradient(
    180deg,
    transparent 0%,
    rgba(108, 243, 255, 0.08) 48%,
    rgba(255, 79, 216, 0.08) 52%,
    transparent 100%
  );
  background-size: 100% 220px;
  animation: scanMove 7s linear infinite;
  opacity: 0.55;
}

.circuit-bg {
  background-image:
    linear-gradient(90deg, rgba(108, 243, 255, 0.08) 1px, transparent 1px),
    linear-gradient(rgba(255, 79, 216, 0.06) 1px, transparent 1px);
  background-size: 180px 180px;
  mask-image: radial-gradient(circle at 70% 20%, black 10%, transparent 62%);
  animation: circuitShift 18s linear infinite;
  opacity: 0.5;
}

.laser-x,
.laser-y {
  opacity: 0.35;
}

.laser-x {
  background: linear-gradient(90deg, transparent, rgba(108, 243, 255, 0.55), rgba(255, 79, 216, 0.4), transparent);
  height: 1px;
  top: 18%;
  animation: laserX 9s linear infinite;
}

.laser-y {
  background: linear-gradient(180deg, transparent, rgba(155, 123, 255, 0.5), rgba(255, 211, 106, 0.35), transparent);
  width: 1px;
  left: 72%;
  animation: laserY 11s linear infinite;
}

.cursor-glow {
  width: 220px;
  height: 220px;
  inset: auto;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(108, 243, 255, 0.16), rgba(255, 79, 216, 0.08), transparent 70%);
  transform: translate(-50%, -50%);
  z-index: 2;
  mix-blend-mode: screen;
  opacity: 0;
  transition: opacity 0.2s ease;
}

html.light .cursor-glow {
  mix-blend-mode: multiply;
}

.grid-bg {
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at center, black 40%, transparent 90%);
  animation: gridPulse 6s ease-in-out infinite;
}

.scanlines {
  background: repeating-linear-gradient(
    to bottom,
    var(--scan),
    var(--scan) 1px,
    transparent 1px,
    transparent 4px
  );
  opacity: 0.25;
}

.vignette {
  box-shadow: inset 0 0 180px var(--vignette);
}

.topbar,
.shell,
.footer {
  position: relative;
  z-index: 1;
}

.topbar,
.footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 20px 8vw;
  font-family: "Share Tech Mono", monospace;
  letter-spacing: 0.12em;
  font-size: 12px;
  color: var(--muted);
}

.top-line {
  color: var(--cyan);
  text-align: center;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--cyan);
}

.brand-mark {
  color: var(--magenta);
  text-shadow: 0 0 12px rgba(255, 79, 216, 0.8);
  animation: pulse 2.4s infinite;
}

.brand-text,
h1, h2, h3, h4, .nav-index, .metric-value {
  font-family: "Orbitron", "Share Tech Mono", sans-serif;
}

.status {
  display: flex;
  align-items: center;
  gap: 8px;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--status);
  box-shadow: 0 0 12px var(--status);
  animation: pulse 1.8s infinite;
}

.shell {
  width: min(1080px, calc(100% - 48px));
  margin: 0 auto 48px;
  display: grid;
  gap: 24px;
}

.hero {
  padding: 24px 0 8px;
}

.eyebrow {
  color: var(--cyan);
  font-family: "Share Tech Mono", monospace;
  letter-spacing: 0.22em;
  font-size: 12px;
  margin-bottom: 12px;
}

h1,
.hero-title {
  font-size: clamp(32px, 6vw, 64px);
  line-height: 1.1;
  background: linear-gradient(90deg, var(--cyan), var(--violet), var(--magenta), var(--gold), var(--cyan));
  background-size: 220% auto;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: hueFlow 8s linear infinite, glitch 4.8s steps(2, end) infinite;
  text-shadow: none;
  filter: drop-shadow(0 0 18px rgba(108, 243, 255, 0.28));
}

.lead {
  max-width: 680px;
  margin-top: 16px;
  color: var(--muted);
  line-height: 1.8;
}

.hero-meta,
.link-grid,
.nav-grid {
  display: grid;
  gap: 12px;
}

.hero-meta {
  grid-template-columns: repeat(3, max-content);
  margin-top: 24px;
}

.chip,
.profile-card,
.panel,
.link-card,
.nav-card {
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(16px);
}

.chip {
  padding: 8px 12px;
  font-family: "Share Tech Mono", monospace;
  font-size: 12px;
  color: var(--cyan);
}

.chip:nth-child(2) {
  color: var(--violet);
  border-color: rgba(155, 123, 255, 0.45);
}

.chip:nth-child(3) {
  color: var(--gold);
  border-color: rgba(255, 211, 106, 0.4);
}

.profile-card,
.panel {
  position: relative;
  overflow: hidden;
  box-shadow: var(--glow-mix);
}

.profile-card::before,
.panel::before {
  content: "";
  position: absolute;
  inset: -1px;
  pointer-events: none;
  background: linear-gradient(120deg, transparent 20%, rgba(108, 243, 255, 0.18), rgba(255, 79, 216, 0.16), transparent 80%);
  opacity: 0.55;
  animation: borderSweep 7s linear infinite;
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  padding: 1px;
}

.profile-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 24px;
  padding: 24px;
  align-items: center;
}

.avatar {
  width: 84px;
  height: 84px;
  display: grid;
  place-items: center;
  overflow: hidden;
  position: relative;
  border: 1px solid var(--cyan);
  color: var(--cyan);
  font-family: "Orbitron", sans-serif;
  box-shadow: inset 0 0 24px rgba(108, 243, 255, 0.2), var(--glow);
}

.avatar-ring {
  position: absolute;
  inset: -8px;
  border: 1px dashed rgba(255, 79, 216, 0.55);
  animation: spin 8s linear infinite;
  pointer-events: none;
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.role,
.bio,
.link-card em,
.nav-card em,
.footer {
  color: var(--muted);
}

.role {
  margin: 6px 0 10px;
}

.bio,
.link-card em,
.lead {
  font-size: 15px;
}

.profile-side {
  display: grid;
  gap: 16px;
}

.portal-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.portal {
  display: grid;
  grid-template-columns: 72px 1fr auto;
  align-items: center;
  gap: 16px;
  min-height: 108px;
  padding: 16px 18px;
  text-decoration: none;
  color: inherit;
  border: 1px solid var(--line);
  background: var(--panel);
  position: relative;
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.portal:hover {
  transform: translateY(-4px) scale(1.01);
}

.portal-mark {
  width: 72px;
  height: 72px;
  display: grid;
  place-items: center;
  font-family: "Orbitron", sans-serif;
  font-size: 20px;
  letter-spacing: 0.04em;
  border: 1px solid currentColor;
  overflow: hidden;
}

.portal-mark-img {
  padding: 0;
  background: #061018;
}

.portal-mark img,
.portal-mark svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.portal-mark-icon {
  padding: 10px;
  background: rgba(252, 162, 53, 0.12);
}

.portal-body {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.portal-body b {
  font-size: 22px;
  line-height: 1.2;
}

.portal-body small {
  color: var(--muted);
  font-size: 14px;
}

.portal-body code {
  font-family: "Share Tech Mono", monospace;
  font-size: 13px;
  color: var(--text);
  letter-spacing: 0.04em;
}

.portal-go {
  padding: 10px 16px;
  border: 1px solid currentColor;
  font-family: "Share Tech Mono", monospace;
  font-size: 13px;
  letter-spacing: 0.12em;
  white-space: nowrap;
}

.portal-cyan {
  border-color: rgba(108, 243, 255, 0.7);
  box-shadow: 0 0 28px rgba(108, 243, 255, 0.22);
  color: var(--cyan);
}
.portal-cyan .portal-mark,
.portal-cyan .portal-go {
  background: rgba(108, 243, 255, 0.12);
}

.portal-violet {
  border-color: rgba(155, 123, 255, 0.7);
  box-shadow: 0 0 28px rgba(155, 123, 255, 0.2);
  color: var(--violet);
}
.portal-violet .portal-mark,
.portal-violet .portal-go {
  background: rgba(155, 123, 255, 0.12);
}

.portal-gold {
  border-color: rgba(255, 211, 106, 0.7);
  box-shadow: 0 0 28px rgba(255, 211, 106, 0.18);
  color: var(--gold);
}
.portal-gold .portal-mark,
.portal-gold .portal-go {
  background: rgba(255, 211, 106, 0.12);
}

.portal-magenta {
  border-color: rgba(255, 79, 216, 0.7);
  box-shadow: 0 0 28px rgba(255, 79, 216, 0.2);
  color: var(--magenta);
}
.portal-magenta .portal-mark,
.portal-magenta .portal-go {
  background: rgba(255, 79, 216, 0.12);
}

.portal-green {
  border-color: rgba(53, 255, 154, 0.7);
  box-shadow: 0 0 28px rgba(53, 255, 154, 0.18);
  color: var(--status);
}
.portal-green .portal-mark,
.portal-green .portal-go {
  background: rgba(53, 255, 154, 0.12);
}

.portal .portal-body b,
.portal .portal-body code {
  color: var(--text);
}

html.light .portal .portal-body b,
html.light .portal .portal-body code {
  color: var(--text);
}

.metric-label {
  display: block;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--magenta);
  margin-bottom: 4px;
}

.panel {
  padding: 22px;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 18px;
}

.panel-head h3 {
  background: linear-gradient(90deg, var(--cyan), var(--violet));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.panel-head span,
.nav-card em {
  font-size: 13px;
}

.link-grid {
  grid-template-columns: 1fr;
}

.link-grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.link-card,
.nav-card {
  padding: 16px;
  min-height: 108px;
}

.link-card strong,
.nav-card strong {
  display: block;
  margin-bottom: 10px;
}

.link-card {
  text-decoration: none;
  color: inherit;
  display: grid;
  gap: 8px;
  position: relative;
  overflow: hidden;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.link-card em {
  font-style: normal;
  line-height: 1.7;
}

.link-card:hover,
.nav-card:hover {
  transform: translateY(-4px);
  border-color: var(--magenta);
  box-shadow: var(--glow-mix);
}

.link-card::before,
.nav-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 30%, rgba(255, 255, 255, 0.16) 48%, transparent 66%);
  transform: translateX(-120%);
  pointer-events: none;
}

.link-card:hover::before,
.nav-card:hover::before {
  animation: shine 0.7s ease;
}

.link-card::after,
.nav-card::after {
  content: "";
  position: absolute;
  width: 140px;
  height: 140px;
  right: -50px;
  top: -70px;
  background: radial-gradient(circle, rgba(108, 243, 255, 0.22), transparent 70%);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.link-card:hover::after,
.nav-card:hover::after {
  opacity: 1;
}

.nav-grid {
  grid-template-columns: repeat(3, 1fr);
}

.contact-grid {
  grid-template-columns: repeat(4, 1fr);
}

.nav-card {
  text-decoration: none;
  color: inherit;
  display: grid;
  gap: 8px;
  position: relative;
  overflow: hidden;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.contact-grid .nav-card:nth-child(1) .nav-index { color: var(--cyan); }
.contact-grid .nav-card:nth-child(2) .nav-index { color: var(--status); }
.contact-grid .nav-card:nth-child(3) .nav-index { color: var(--gold); }
.contact-grid .nav-card:nth-child(4) .nav-index { color: var(--violet); }

.nav-index {
  color: var(--cyan);
  font-size: 12px;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%) translateY(20px);
  padding: 10px 16px;
  border: 1px solid var(--cyan);
  background: rgba(5, 7, 11, 0.92);
  color: var(--cyan);
  opacity: 0;
  pointer-events: none;
  transition: 0.25s ease;
  z-index: 5;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  padding: 24px;
}

.modal[hidden] {
  display: none;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(2, 6, 12, 0.78);
  backdrop-filter: blur(8px);
}

.modal-panel {
  position: relative;
  width: min(420px, 100%);
  padding: 20px;
  border: 1px solid var(--line);
  background: rgba(8, 14, 22, 0.96);
  box-shadow: var(--glow);
}

.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.modal-close {
  width: 32px;
  height: 32px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--cyan);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
}

.modal-panel img {
  width: 100%;
  display: block;
  background: #fff;
}

.float-dock {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 12;
  display: grid;
  gap: 10px;
}

.float-btn {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  background: var(--float-bg);
  color: var(--cyan);
  box-shadow: var(--glow);
  cursor: pointer;
  backdrop-filter: blur(14px);
}

.float-btn svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.float-btn .icon-sun {
  display: none;
}

html.light .float-btn .icon-moon {
  display: none;
}

html.light .float-btn .icon-sun {
  display: block;
}

.float-btn[hidden] {
  display: none;
}

.qr-hover {
  position: relative;
}

.qr-pop {
  position: absolute;
  right: 58px;
  top: 50%;
  transform: translateY(-50%) translateX(8px);
  width: 232px;
  padding: 22px 22px 18px;
  border: 1px solid var(--line);
  background: var(--float-bg);
  box-shadow: var(--glow);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  display: grid;
  gap: 14px;
  justify-items: center;
}

.qr-pop img {
  width: 168px;
  height: 168px;
  padding: 10px;
  box-sizing: border-box;
  background: #fff;
  display: block;
}

.qr-pop span {
  font-family: "Noto Sans SC", sans-serif;
  font-size: 12px;
  letter-spacing: 0;
  color: var(--text);
  text-align: center;
}

.qr-hover:hover .qr-pop,
.qr-hover:focus-within .qr-pop {
  opacity: 1;
  transform: translateY(-50%) translateX(0);
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

@keyframes hueFlow {
  0% { background-position: 0% center; }
  100% { background-position: 220% center; }
}

@keyframes drift {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(40px, 24px, 0) scale(1.08); }
}

@keyframes scanMove {
  0% { background-position: 0 -220px; }
  100% { background-position: 0 120vh; }
}

@keyframes borderSweep {
  0% { transform: translateX(-40%); }
  100% { transform: translateX(40%); }
}

@keyframes circuitShift {
  0% { background-position: 0 0, 0 0; }
  100% { background-position: 180px 90px, -90px 180px; }
}

@keyframes laserX {
  0% { transform: translateY(-30vh); opacity: 0; }
  15% { opacity: 0.7; }
  100% { transform: translateY(90vh); opacity: 0; }
}

@keyframes laserY {
  0% { transform: translateX(-20vw); opacity: 0; }
  20% { opacity: 0.6; }
  100% { transform: translateX(70vw); opacity: 0; }
}

@keyframes gridPulse {
  0%, 100% { opacity: 0.7; }
  50% { opacity: 1; }
}

@keyframes glitch {
  0%, 92%, 100% { transform: none; }
  93% { transform: translate(1px, -1px); }
  95% { transform: translate(-1px, 1px); }
  97% { transform: translate(1px, 0); }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes shine {
  to { transform: translateX(120%); }
}

@media (max-width: 860px) {
  .topbar, .footer {
    padding: 16px 20px;
  }

  .profile-card,
  .link-grid,
  .link-grid-2,
  .nav-grid,
  .contact-grid,
  .hero-meta,
  .portal-row,
  .portal {
    grid-template-columns: 1fr;
  }

  .portal-go {
    justify-self: start;
  }

  .profile-card {
    justify-items: start;
  }

  .top-line {
    display: none;
  }

  .cursor-glow,
  .laser-x,
  .laser-y,
  .qr-hover {
    display: none;
  }
}