/* ============ ESTADOS INICIAIS DAS ANIMAÇÕES ============ */
html.error-motion:not(.reduce-motion):not(.motion-fallback) .error-visual:not(.is-visible) {
  opacity: 0;
  transform: translateY(26px) scale(.97);
}

html.error-motion:not(.reduce-motion):not(.motion-fallback) .error-copy > *:not(.is-visible) {
  opacity: 0;
  transform: translateY(24px);
}

html.error-motion:not(.reduce-motion):not(.motion-fallback) .brand:not(.is-visible),
html.error-motion:not(.reduce-motion):not(.motion-fallback) .hud:not(.is-visible) {
  opacity: 0;
}

html.error-motion:not(.reduce-motion):not(.motion-fallback) .error-visual:not(.is-visible),
html.error-motion:not(.reduce-motion):not(.motion-fallback) .error-copy > *:not(.is-visible),
html.error-motion:not(.reduce-motion):not(.motion-fallback) .brand:not(.is-visible),
html.error-motion:not(.reduce-motion):not(.motion-fallback) .hud:not(.is-visible) {
  will-change: opacity, transform;
}

/* ============================================================
   JOÃO ALBERTO — PÁGINAS 403 / 404
   TV inspirada no componente de Praashoo7 (Uiverse), redesenhada
   para a identidade preto × off-white do site.
   ============================================================ */

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

/* ---------- Tema ---------- */
:root {
  color-scheme: dark;

  --ink: #0f0f0f;
  --paper: #f2f0eb;
  --stone: #bdbab0;
  --graphite: #77756e;

  --bg: var(--ink);
  --fg: var(--paper);
  --muted: rgba(242, 240, 235, .5);
  --soft: rgba(242, 240, 235, .72);
  --line: rgba(242, 240, 235, .14);

  --font-sans: "Instrument Sans", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "DM Mono", "JetBrains Mono", monospace;

  --tv-scale: clamp(.78, 1.15vw, 1);
}

html {
  min-width: 320px;
  background: var(--bg);
}

body {
  min-width: 320px;
  min-height: 100vh;
  min-height: 100svh;
  overflow: hidden;

  display: grid;
  place-items: center;

  padding:
    max(5.75rem, env(safe-area-inset-top))
    max(1.25rem, env(safe-area-inset-right))
    max(5rem, env(safe-area-inset-bottom))
    max(1.25rem, env(safe-area-inset-left));

  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;

  opacity: .03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 180px;
}

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

a:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 4px;
}

/* ---------- Utilitários ---------- */
.mono {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.dot {
  opacity: .35;
}

/* ---------- Canvas ---------- */
#stage {
  position: fixed;
  inset: 0;
  z-index: 1;

  width: 100%;
  height: 100%;
  pointer-events: none;
}

/* ---------- Marca ---------- */
.brand {
  position: fixed;
  top: max(1.6rem, env(safe-area-inset-top));
  left: 50%;
  z-index: 5;

  color: var(--fg);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -.02em;
  text-decoration: none;
  white-space: nowrap;

  transform: translateX(-50%);
}

/* ---------- HUD ---------- */
.hud {
  position: fixed;
  right: 0;
  bottom: max(1.4rem, env(safe-area-inset-bottom));
  left: 0;
  z-index: 5;

  display: flex;
  justify-content: space-between;
  padding-inline: clamp(1.25rem, 4vw, 4rem);

  color: var(--muted);
  pointer-events: none;
}

/* ---------- Estrutura ---------- */
.error-shell {
  position: relative;
  z-index: 3;

  width: min(100%, 72rem);
  display: grid;
  grid-template-columns: minmax(22rem, .92fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(3rem, 8vw, 8rem);
}

.error-visual {
  position: relative;
  min-height: clamp(31rem, 56vw, 38rem);

  display: flex;
  align-items: flex-start;
  justify-content: center;
}

.error-code-backdrop {
  position: absolute;
  top: 1.25rem;
  right: 0;
  left: 0;
  z-index: 0;

  color: rgba(242, 240, 235, .085);
  font-size: clamp(10rem, 21vw, 18rem);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  letter-spacing: -.075em;
  line-height: .78;
  text-align: center;
  white-space: nowrap;

  transform: scaleY(1.18);
  transform-origin: top center;
  user-select: none;
}

.error-copy {
  max-width: 36rem;
}

.error-label {
  display: block;
  margin-bottom: 1.6rem;
  color: var(--muted);
}

h1 {
  color: var(--fg);
  font-size: clamp(3.2rem, 6.4vw, 6.25rem);
  font-weight: 600;
  letter-spacing: -.055em;
  line-height: .92;
}

.error-description {
  max-width: 38ch;
  margin-top: 1.6rem;

  color: var(--soft);
  font-size: 1.02rem;
  line-height: 1.7;
}

/* ============================================================
   TV MONOCROMÁTICA
   ============================================================ */
.retro-tv {
  position: relative;
  z-index: 1;
  width: 23rem;
  height: 19rem;
  margin-top: 10.25rem;
  transform: scale(var(--tv-scale));
  transform-origin: center;
}

.tv-antenna {
  position: absolute;
  top: 0;
  left: 50%;
  width: 9rem;
  height: 6rem;
  transform: translateX(-50%);
}

.antenna-rod {
  position: absolute;
  bottom: .8rem;
  width: .22rem;
  height: 6.4rem;
  border-radius: 999px;
  background: var(--stone);
  transform-origin: bottom;
}

.antenna-rod-left {
  left: 2.8rem;
  transform: rotate(-31deg);
}

.antenna-rod-right {
  right: 2.8rem;
  transform: rotate(31deg);
}

.antenna-tip {
  position: absolute;
  top: -.1rem;
  width: .62rem;
  height: .62rem;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--paper);
}

.antenna-tip-left {
  left: .45rem;
}

.antenna-tip-right {
  right: .45rem;
}

.antenna-base {
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 4rem;
  height: 1.55rem;
  border: 2px solid var(--ink);
  border-radius: 999px 999px .45rem .45rem;
  background: var(--stone);
  transform: translateX(-50%);
}

.tv-body {
  position: absolute;
  top: 4.85rem;
  left: 50%;

  width: 22rem;
  height: 12.75rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 4.65rem;
  gap: .75rem;
  padding: .8rem;

  border: 2px solid var(--ink);
  border-radius: 1.2rem;
  background: var(--paper);
  box-shadow:
    inset .22rem .22rem 0 rgba(255, 255, 255, .38),
    .4rem .45rem 0 var(--graphite);

  transform: translateX(-50%);
}

.tv-body::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;

  opacity: .055;
  background:
    repeating-radial-gradient(
      rgba(15, 15, 15, .85) 0 .01%,
      transparent .012% .025%
    ) 50% 0 / 1100px 1100px,
    repeating-conic-gradient(
      rgba(15, 15, 15, .75) 0 .01%,
      transparent .012% .025%
    ) 60% 60% / 1100px 1100px;
  mix-blend-mode: multiply;
}

.tv-screen-frame {
  min-width: 0;
  display: grid;
  place-items: center;
  padding: .28rem;

  border: 2px solid var(--ink);
  border-radius: .92rem;
  background: var(--graphite);
  box-shadow: .22rem .22rem 0 var(--stone);
}

.tv-screen {
  position: relative;
  isolation: isolate;
  overflow: hidden;

  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;

  border: 2px solid var(--ink);
  border-radius: .68rem;
  background:
    repeating-radial-gradient(
      #0f0f0f 0 .012%,
      #f2f0eb .014% .028%
    ) 50% 0 / 1800px 1800px,
    repeating-conic-gradient(
      #0f0f0f 0 .012%,
      #bdbab0 .014% .028%
    ) 60% 60% / 1800px 1800px;
  background-blend-mode: difference;

  animation: tv-static .18s steps(2, end) infinite alternate;
}

.tv-screen::before,
.tv-screen::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  pointer-events: none;
}

.tv-screen::before {
  top: -35%;
  height: 22%;
  opacity: .17;
  background: var(--paper);
  filter: blur(.12rem);
  animation: tv-scan 2.35s linear infinite;
}

.tv-screen::after {
  inset: 0;
  opacity: .18;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0 3px,
    rgba(242, 240, 235, .38) 4px,
    transparent 5px
  );
}

.tv-screen-label {
  position: relative;
  z-index: 2;

  padding: .42rem .62rem;
  border: 1px solid var(--paper);
  border-radius: .32rem;
  background: var(--ink);
  color: var(--paper);

  font-family: var(--font-mono);
  font-size: .58rem;
  font-weight: 500;
  letter-spacing: .11em;
  line-height: 1;
  text-align: center;
  white-space: nowrap;
}

.tv-controls {
  position: relative;
  z-index: 1;

  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .72rem;
  padding: .7rem .45rem;

  border: 2px solid var(--ink);
  border-radius: .78rem;
  background: var(--stone);
}

.tv-dial {
  position: relative;
  width: 1.72rem;
  height: 1.72rem;
  flex: 0 0 auto;

  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--graphite);
  box-shadow: inset .12rem .12rem 0 rgba(242, 240, 235, .38);
}

.tv-dial::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: .12rem;
  height: 1.15rem;
  border-radius: 999px;
  background: var(--ink);
  transform: translate(-50%, -50%) rotate(42deg);
}

.tv-dial-two::after {
  transform: translate(-50%, -50%) rotate(-42deg);
}

.tv-speaker-dots {
  display: flex;
  justify-content: center;
  gap: .22rem;
}

.tv-speaker-dot {
  width: .48rem;
  height: .48rem;
  display: block;
  border: 1px solid var(--ink);
  border-radius: 50%;
  background: var(--graphite);
}

.tv-speaker-lines {
  width: 100%;
  display: grid;
  gap: .34rem;
  margin-top: .1rem;
}

.tv-speaker-lines i {
  display: block;
  height: 2px;
  border-radius: 999px;
  background: var(--ink);
}

.tv-feet {
  position: absolute;
  top: 17.15rem;
  left: 50%;
  width: 16rem;
  display: flex;
  justify-content: space-between;
  transform: translateX(-50%);
}

.tv-feet span {
  width: 2.3rem;
  height: 1rem;
  border: 2px solid var(--ink);
  background: var(--graphite);
}

.tv-ground {
  position: absolute;
  top: 18.05rem;
  left: 50%;
  width: 20rem;
  height: 2px;
  background: var(--paper);
  transform: translateX(-50%);
  opacity: .72;
}

@keyframes tv-static {
  from {
    background-position: 50% 0, 60% 50%;
  }

  to {
    background-position: 46% 4%, 63% 56%;
  }
}

@keyframes tv-scan {
  from {
    transform: translateY(0);
  }

  to {
    transform: translateY(640%);
  }
}

/* ---------- Ação ---------- */
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.4rem;
}

.btn {
  min-height: 54px;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;

  padding: 4px 4px 4px 1.4rem;
  border: 1px solid var(--fg);
  border-radius: 12px;

  background: var(--fg);
  text-decoration: none;

  transition:
    background-color .3s ease,
    border-color .3s ease;
}

.btn span {
  color: var(--bg);
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .05em;
  text-transform: uppercase;
  white-space: nowrap;
  transition: color .3s ease;
}

.btn i {
  width: 44px;
  height: 44px;
  flex: 0 0 auto;

  display: grid;
  place-items: center;

  border-radius: 8px;
  background: var(--bg);
  color: var(--fg);
  font-size: .9rem;

  transition:
    background-color .3s ease,
    color .3s ease;
}

.btn:is(:hover, :focus-visible) {
  background: var(--bg);
}

.btn:is(:hover, :focus-visible) span {
  color: var(--fg);
}

.btn:is(:hover, :focus-visible) i {
  background: var(--fg);
  color: var(--bg);
}

/* ---------- Sem JavaScript ---------- */
.noscript-message {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  left: 1rem;
  z-index: 6;

  color: var(--muted);
  font-family: var(--font-mono);
  font-size: .65rem;
  letter-spacing: .08em;
  text-align: center;
  text-transform: uppercase;
}

/* ---------- Responsividade ---------- */
@media (max-width: 900px) {
  body {
    overflow-y: auto;
  }

  .error-shell {
    width: min(100%, 42rem);
    grid-template-columns: 1fr;
    justify-items: center;
    gap: 1rem;
  }

  .error-visual {
    min-height: 29rem;
  }

  .error-code-backdrop {
    top: .75rem;
    font-size: clamp(10rem, 39vw, 16rem);
    letter-spacing: -.065em;
  }

  .retro-tv {
    margin-top: 8.75rem;
  }

  .error-copy {
    max-width: 36rem;
    text-align: center;
  }

  .error-description {
    margin-inline: auto;
  }

  .actions {
    justify-content: center;
  }
}

@media (max-width: 560px) {
  :root {
    --tv-scale: .72;
  }

  body {
    padding-top: max(5rem, env(safe-area-inset-top));
    padding-bottom: max(4.5rem, env(safe-area-inset-bottom));
  }

  .brand {
    top: max(1.2rem, env(safe-area-inset-top));
    font-size: 1.2rem;
  }

  /* no celular a página rola: o HUD fixo passaria por cima dos botões */
  .hud {
    display: none;
  }

  .error-visual {
    width: 100%;
    min-height: 23rem;
  }

  .error-code-backdrop {
    top: .35rem;
    width: 100%;
    font-size: clamp(8.5rem, 43vw, 11.5rem);
    letter-spacing: -.055em;
    text-align: center;
  }

  .retro-tv {
    margin-top: 7.1rem;
  }

  .error-label {
    margin-bottom: 1.15rem;
  }

  h1 {
    font-size: clamp(2.8rem, 13vw, 4.2rem);
  }

  .error-description {
    max-width: 31ch;
    font-size: .96rem;
  }
}

@media (max-width: 420px) {
  .actions,
  .btn {
    width: 100%;
  }
}

@media (max-height: 680px) and (orientation: landscape) {
  body {
    overflow-y: auto;
    padding-block: 5rem 4.5rem;
  }

  .error-shell {
    grid-template-columns: minmax(18rem, .85fr) minmax(0, 1fr);
    gap: 2rem;
  }

  .error-visual {
    min-height: 20rem;
  }

  .error-code-backdrop {
    top: .25rem;
    font-size: clamp(8rem, 24vw, 12rem);
  }

  .retro-tv {
    margin-top: 6.6rem;
  }

  :root {
    --tv-scale: .68;
  }

  h1 {
    font-size: clamp(2.7rem, 9vh, 4.8rem);
  }

  .error-description {
    margin-top: 1rem;
  }

  .actions {
    margin-top: 1.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .tv-screen {
    background-position: 50% 0, 60% 50%;
  }
}

/* Allow the error composition to shrink on narrow phones. */
@media(max-width:560px){.error-shell{width:100%;min-width:0;grid-template-columns:minmax(0,1fr)}.error-copy,.error-visual{min-width:0;max-width:100%}.error-copy h1{font-size:clamp(2.2rem,11vw,3.8rem);overflow-wrap:anywhere}}

/* ============ BOTÃO SECUNDÁRIO E TÍTULOS ANIMADOS ============ */
.btn--ghost {
  background: transparent;
  border-color: var(--line);
}

.btn--ghost span {
  color: var(--fg);
}

.btn--ghost i {
  background: var(--chip, rgba(242, 240, 235, .07));
  color: var(--fg);
}

.btn--ghost:is(:hover, :focus-visible) {
  border-color: var(--fg);
}

/* máscara das palavras do título (SplitText): não corta acentos nem descendentes */
.split-word-mask {
  padding-bottom: .1em;
  margin-bottom: -.1em;
}