:root {
  --bg:        #050505;
  --bg-soft:   #0c0c0c;
  --fg:        #ededed;
  --muted:     #8c8c8c;
  --dim:       #4c4c4c;
  --line:      rgba(255, 255, 255, 0.12);
  --line-soft: rgba(255, 255, 255, 0.06);
  --flash:     #ffffff;

  --font-display: "Space Grotesk", "Arial Narrow", system-ui, sans-serif;
  --font-mono:    "Space Mono", ui-monospace, "Consolas", monospace;

  --pad-x: clamp(1.1rem, 5.6vw, 3.5rem);
  --maxw:  64rem;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  background: var(--bg);
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-mono);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  font-synthesis: none;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }

::selection { background: var(--fg); color: var(--bg); }

:focus-visible {
  outline: 1px solid var(--flash);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 0.5rem;
  left: 0.5rem;
  z-index: 200;
  padding: 0.5rem 0.9rem;
  background: var(--fg);
  color: var(--bg);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  transform: translateY(-160%);
  transition: transform 0.2s var(--ease);
}
.skip-link:focus { transform: translateY(0); }

.fx {
  position: fixed;
  inset: 0;
  z-index: 90;
  pointer-events: none;
  contain: strict;
}

.fx__noise {
  position: absolute;
  inset: -60%;
  width: 220%;
  height: 220%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: 0.05;
  mix-blend-mode: screen;
  animation: noise 640ms steps(1, end) infinite;
  will-change: transform;
}

.fx__scanlines {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0) 0,
    rgba(0, 0, 0, 0) 2px,
    rgba(0, 0, 0, 0.22) 3px
  );
  opacity: 0.32;
  animation: crt-flicker 9s steps(1, end) infinite;
}

.fx__scanbar {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 34vh;
  transform: translateY(-40vh);
  background: linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.025) 44%,
    rgba(255, 255, 255, 0.07) 50%,
    rgba(255, 255, 255, 0.025) 56%,
    rgba(255, 255, 255, 0) 100%
  );
  animation: scanbar 13s ease-in-out infinite;
  will-change: transform;
}

.fx__vignette {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(130% 90% at 50% -10%, rgba(0,0,0,0) 42%, rgba(0,0,0,0.55) 100%),
    radial-gradient(120% 120% at 50% 120%, rgba(0,0,0,0) 55%, rgba(0,0,0,0.45) 100%);
}

@keyframes noise {
  0%   { transform: translate(0, 0); }
  10%  { transform: translate(-4%, -5%); }
  20%  { transform: translate(-9%, 3%); }
  30%  { transform: translate(5%, -8%); }
  40%  { transform: translate(-3%, 9%); }
  50%  { transform: translate(-8%, 4%); }
  60%  { transform: translate(6%, -3%); }
  70%  { transform: translate(-2%, -7%); }
  80%  { transform: translate(8%, 5%); }
  90%  { transform: translate(-6%, -2%); }
  100% { transform: translate(0, 0); }
}

@keyframes crt-flicker {
  0%, 92%, 100% { opacity: 0.32; }
  93%           { opacity: 0.26; }
  95%           { opacity: 0.38; }
  97%           { opacity: 0.3; }
}

@keyframes scanbar {
  0%, 68%  { transform: translateY(-40vh); }
  100%     { transform: translateY(135vh); }
}

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 120;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem var(--pad-x);
  font-family: var(--font-mono);
  font-size: clamp(0.62rem, 2.3vw, 0.72rem);
  letter-spacing: 0.12em;
  background: linear-gradient(to bottom, rgba(5,5,5,0.92) 40%, rgba(5,5,5,0));
  backdrop-filter: blur(2px);
}

.nav__brand {
  color: var(--fg);
  letter-spacing: 0.05em;
  white-space: nowrap;
}
.nav__brand .bracket { color: var(--dim); }

.nav__links {
  display: flex;
  gap: clamp(0.6rem, 3.6vw, 1.7rem);
}
.nav__links a {
  color: var(--muted);
  padding: 0.3rem 0;
  position: relative;
  transition: color 0.2s var(--ease);
}
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--fg);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.28s var(--ease);
}
.nav__links a:hover,
.nav__links a:focus-visible,
.nav__links a[aria-current="true"] { color: var(--fg); }
.nav__links a:hover::after,
.nav__links a[aria-current="true"]::after { transform: scaleX(1); }

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(3.5rem, 11vw, 5.5rem) var(--pad-x) clamp(3.5rem, 13vw, 6.5rem);
  overflow: hidden;
}

.hero__tag {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-size: clamp(0.5rem, 2.2vw, 0.72rem);
  letter-spacing: clamp(0.07em, 0.5vw, 0.24em);
  color: var(--muted);
  text-transform: uppercase;
}
.hero__tag .dot {
  width: 6px;
  height: 6px;
  background: var(--fg);
  flex: none;
  animation: blink 2.4s steps(1, end) infinite;
}
@keyframes blink { 0%, 62% { opacity: 1; } 63%, 100% { opacity: 0.15; } }

.hero__center {
  position: relative;
  z-index: 2;
  margin: auto 0;
  padding: 1.5rem 0;
}
.hero__center::before {
  content: "00 — IDENTITY";
  position: relative;
  z-index: 2;
  display: block;
  margin-bottom: clamp(1rem, 4vw, 1.75rem);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.34em;
  color: var(--muted);
  text-transform: uppercase;
}

.glitch {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(3rem, 17vw, 8.75rem);
  line-height: 0.9;
  letter-spacing: -0.035em;
  color: var(--fg);
  position: relative;
  z-index: 2;
  display: inline-block;
  max-width: 100%;
  overflow-wrap: anywhere;
  text-shadow:
     0.012em 0 rgba(255, 255, 255, 0.16),
    -0.012em 0 rgba(120, 120, 120, 0.2);
}

.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: var(--bg);
  overflow: hidden;
  pointer-events: none;
  opacity: 0;
}
.glitch::before { color: #fbfbfb; text-shadow: -0.03em 0 0 rgba(255, 255, 255, 0.85); clip-path: inset(0 0 100% 0); }
.glitch::after  { color: #8f8f8f; text-shadow:  0.04em 0 0 rgba(70, 70, 70, 0.9);   clip-path: inset(100% 0 0 0); }

.glitch.is-glitching::before { opacity: 1; animation: g-burst-top 0.32s steps(1, end) 1; }
.glitch.is-glitching::after  { opacity: 1; animation: g-burst-bot 0.32s steps(1, end) 1; }

@keyframes g-burst-top {
  0%   { clip-path: inset(6% 0 82% 0);  transform: translate3d(-0.05em, 0, 0); }
  30%  { clip-path: inset(30% 0 54% 0); transform: translate3d(0.045em, 0, 0); }
  60%  { clip-path: inset(48% 0 40% 0); transform: translate3d(-0.03em, 0, 0); }
  100% { clip-path: inset(0 0 100% 0);  transform: translate3d(0, 0, 0); }
}
@keyframes g-burst-bot {
  0%   { clip-path: inset(82% 0 6% 0);  transform: translate3d(0.05em, 0, 0); }
  30%  { clip-path: inset(54% 0 30% 0); transform: translate3d(-0.045em, 0, 0); }
  60%  { clip-path: inset(38% 0 48% 0); transform: translate3d(0.03em, 0, 0); }
  100% { clip-path: inset(100% 0 0 0); transform: translate3d(0, 0, 0); }
}

.hero__face {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 0;
  width: min(31rem, 118vw);
  aspect-ratio: 1000 / 1120;
  transform: translate(-50%, -54%);
  background: center / contain no-repeat url("../face-glitch.png");
  opacity: 0.3;
  pointer-events: none;
  mix-blend-mode: screen;
  animation: face-drift 6.5s ease-in-out infinite;
}
.hero__face canvas {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
}
@keyframes face-drift {
  0%, 100% { transform: translate(-50%, -54%) translate(0, 0); }
  50%      { transform: translate(-50%, -54%) translate(-3px, 1px); }
}

.hero__role {
  position: relative;
  z-index: 2;
  margin-top: clamp(1rem, 4vw, 1.6rem);
  max-width: 34ch;
  font-size: clamp(0.66rem, 2.7vw, 0.82rem);
  letter-spacing: 0.06em;
  color: var(--muted);
  text-transform: uppercase;
}

.hero__scroll {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  color: var(--dim);
}
.hero__scroll-line {
  width: clamp(2.5rem, 12vw, 5rem);
  height: 1px;
  background: linear-gradient(to right, var(--dim), transparent);
  position: relative;
  overflow: hidden;
}
.hero__scroll-line::after {
  content: "";
  position: absolute;
  inset: 0;
  width: 40%;
  background: var(--fg);
  animation: scroll-run 2.6s var(--ease) infinite;
}
@keyframes scroll-run {
  0%   { transform: translateX(-100%); }
  60%, 100% { transform: translateX(320%); }
}

.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(3.25rem, 11vw, 7rem) var(--pad-x);
  border-top: 1px solid var(--line-soft);
  scroll-margin-top: 3.5rem;
}

.section__label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.34em;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: clamp(1.75rem, 6vw, 3rem);
}
.section__label span { color: var(--fg); }

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.reveal.is-in { opacity: 1; transform: none; }

.about__text {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.2rem, 4.8vw, 1.8rem);
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--fg);
  max-width: 42ch;
}

@keyframes text-jitter {
  0%   { transform: translate(0, 0); }
  25%  { transform: translate(-1px, 1px); text-shadow: 2px 0 rgba(255,255,255,0.35); }
  50%  { transform: translate(2px, -1px); text-shadow: -2px 0 rgba(120,120,120,0.4); }
  75%  { transform: translate(-1px, 0); }
  100% { transform: translate(0, 0); text-shadow: none; }
}

.socials { list-style: none; }
.socials li { border-top: 1px solid var(--line); }
.socials li:last-child { border-bottom: 1px solid var(--line); }

.socials a {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: clamp(0.9rem, 3.6vw, 1.35rem) 0;
  transition: padding-left 0.3s var(--ease);
}
.socials a .s-name {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.6rem, 7vw, 2.6rem);
  letter-spacing: -0.02em;
  color: var(--fg);
}
.socials a .s-handle {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--dim);
  letter-spacing: 0.06em;
}
.socials a .s-ext {
  margin-left: auto;
  align-self: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--dim);
  transition: color 0.2s var(--ease), transform 0.25s var(--ease);
}
@media (hover: hover) {
  .socials a:hover { padding-left: clamp(0.6rem, 3vw, 1.5rem); }
  .socials a:hover .s-ext { color: var(--fg); transform: translate(2px, -2px); }
  .socials a:hover .s-name { animation: text-jitter 0.3s steps(2, end) 1; }
}
.socials a:active { padding-left: clamp(0.6rem, 3vw, 1.5rem); }
.socials a:active .s-ext { color: var(--fg); }
.socials a:focus-visible { outline-offset: -2px; }

.footer {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(3rem, 10vw, 5rem) var(--pad-x) clamp(3rem, 12vw, 6rem);
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  display: grid;
  gap: 0.5rem;
}
.footer__mark { font-size: 0.78rem; letter-spacing: 0.12em; color: var(--fg); }
.footer__note { font-size: 0.78rem; color: var(--muted); letter-spacing: 0.04em; }
.footer__sys  { font-size: 0.62rem; color: var(--dim); letter-spacing: 0.24em; margin-top: 0.75rem; }
@media (max-width: 30rem) { .footer { padding-bottom: 5.5rem; } }

.audio-toggle {
  position: fixed;
  right: max(1rem, env(safe-area-inset-right, 0px));
  bottom: max(1rem, env(safe-area-inset-bottom, 0px));
  z-index: 130;
  width: 2.75rem;
  height: 2.75rem;
  display: grid;
  place-items: center;
  padding: 0;
  border: 1px solid var(--line);
  background: rgba(5, 5, 5, 0.55);
  -webkit-backdrop-filter: blur(4px);
          backdrop-filter: blur(4px);
  color: var(--muted);
  cursor: pointer;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}
.audio-toggle svg { width: 1.2rem; height: 1.2rem; display: block; }
.audio-toggle .a-wave { opacity: 0; }
.audio-toggle .a-slash { opacity: 0.9; }

.audio-toggle:hover,
.audio-toggle:focus-visible {
  color: var(--fg);
  border-color: var(--fg);
  background: rgba(5, 5, 5, 0.8);
}

.audio-toggle[aria-pressed="true"] {
  color: var(--fg);
  border-color: var(--fg);
}
.audio-toggle[aria-pressed="true"] .a-wave {
  opacity: 1;
  animation: a-pulse 1.7s ease-in-out infinite;
}
.audio-toggle[aria-pressed="true"] .a-slash { opacity: 0; }

@keyframes a-pulse {
  0%, 100% { opacity: 0.5; }
  50%      { opacity: 1; }
}

@media (min-width: 48rem) {
  .hero__face { width: min(34rem, 47vw); opacity: 0.32; }
  .hero__role { font-size: 0.8rem; }
}

@media (min-width: 64rem) {
  .hero { padding-inline: max(var(--pad-x), calc((100vw - var(--maxw)) / 2 + var(--pad-x))); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .fx__noise { animation: none; opacity: 0.03; }
  .fx__scanbar { display: none; }
  .fx__scanlines { animation: none; opacity: 0.22; }
  .hero__scroll-line::after { display: none; }
  .hero__tag .dot { animation: none; }
  .hero__face { animation: none; }
  .glitch { animation: none; }
  .glitch::before, .glitch::after { display: none; }
  .reveal { opacity: 1; transform: none; }
  .audio-toggle[aria-pressed="true"] .a-wave { animation: none; opacity: 1; }
}