/* G.R.A.V.E. — CRT âmbar */

:root {
  --bg: #0a0700;
  --bg-2: #120c02;
  --amber: #ffb000;
  --amber-hi: #ffd27a;
  --amber-dim: #b07a10;
  --amber-faint: #4a3304;
  --red: #ff5a3c;
  --glow: 0 0 2px rgba(255, 176, 0, .9), 0 0 10px rgba(255, 176, 0, .35);
  --glow-strong: 0 0 3px rgba(255, 200, 80, .95), 0 0 18px rgba(255, 176, 0, .55), 0 0 42px rgba(255, 140, 0, .25);
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --pixel: "VT323", var(--mono);
  --max: 62rem;
}

* { box-sizing: border-box; }

html {
  background:
    radial-gradient(ellipse at 50% 30%, #1a1103 0%, var(--bg) 60%) fixed,
    var(--bg);
  scroll-behavior: smooth;
  scroll-padding-top: 4.5rem;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--amber);
  font: 400 1rem/1.7 var(--mono);
  text-shadow: var(--glow);
  overflow-x: hidden;
}

/* --- Imagem de fundo --- */
.bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background: url("bg.webp") center / cover no-repeat;
  opacity: .2;
  pointer-events: none;
}
@media (orientation: portrait) {
  .bg { background-image: url("bg-mobile.webp"); }
}

::selection { background: var(--amber); color: var(--bg); text-shadow: none; }

a { color: var(--amber-hi); text-decoration: none; border-bottom: 1px dashed var(--amber-dim); }
a:hover, a:focus-visible { background: var(--amber); color: var(--bg); text-shadow: none; border-bottom-color: transparent; }
:focus-visible { outline: 1px solid var(--amber-hi); outline-offset: 3px; }

/* --- Idioma --- */
html:not(.en) .en, html.en .pt { display: none !important; }

/* --- Filtro CRT --- */
body.crt::before,
body.crt::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 100;
}
/* linhas de varredura + máscara de fósforo */
body.crt::before {
  background:
    repeating-linear-gradient(to bottom, rgba(0, 0, 0, .28) 0 1px, transparent 1px 3px),
    repeating-linear-gradient(to right, rgba(255, 60, 0, .025) 0 1px, rgba(255, 200, 0, .02) 1px 2px, transparent 2px 3px);
  animation: flicker 6s infinite steps(1);
}
/* vinheta + curvatura do tubo */
body.crt::after {
  background:
    radial-gradient(ellipse at center, transparent 62%, rgba(0, 0, 0, .4) 92%, rgba(0, 0, 0, .75) 100%),
    linear-gradient(to bottom, rgba(255, 176, 0, .03), transparent 30%, transparent 70%, rgba(255, 176, 0, .03));
  box-shadow: inset 0 0 90px rgba(0, 0, 0, .75);
}
/* faixa de varredura que desce lentamente */
body.crt .screen::after {
  content: "";
  position: fixed;
  left: 0; right: 0; top: -20vh;
  height: 18vh;
  pointer-events: none;
  z-index: 101;
  background: linear-gradient(to bottom, transparent, rgba(255, 176, 0, .045), transparent);
  animation: sweep 9s linear infinite;
}
body.crt main { animation: jitter 11s infinite; }

@keyframes flicker {
  0%, 100% { opacity: 1; }
  41% { opacity: .82; }
  42% { opacity: 1; }
  77% { opacity: .9; }
  78% { opacity: 1; }
}
@keyframes sweep { to { transform: translateY(140vh); } }
@keyframes jitter {
  0%, 96.9%, 100% { transform: none; filter: none; }
  97% { transform: translateX(1px) skewX(.4deg); filter: brightness(1.15); }
  97.4% { transform: translateX(-1px); }
  97.8% { transform: none; filter: none; }
}

/* sem filtro: tela "limpa" */
body:not(.crt) { text-shadow: none; }

/* --- Barra superior --- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 1rem 1.5rem;
  flex-wrap: wrap;
  padding: .7rem max(1rem, calc((100vw - var(--max)) / 2));
  background: rgba(10, 7, 0, .92);
  border-bottom: 1px solid var(--amber-faint);
  backdrop-filter: blur(3px);
}
.brand {
  font: 2rem/1 var(--pixel);
  letter-spacing: .08em;
  border: 0;
  text-shadow: var(--glow-strong);
}
.brand:hover { background: none; color: var(--amber-hi); text-shadow: var(--glow-strong); }
.topbar nav { display: flex; gap: .25rem 1.1rem; flex-wrap: wrap; flex: 1; }
.topbar nav a { border: 0; font-size: .9rem; text-transform: uppercase; letter-spacing: .06em; padding: .1rem .25rem; }
kbd {
  font: inherit;
  color: var(--bg);
  background: var(--amber-dim);
  text-shadow: none;
  padding: 0 .3em;
  margin-right: .4em;
}
.toggles { display: flex; gap: .5rem; }
button {
  font: .85rem var(--mono);
  color: var(--amber);
  background: transparent;
  border: 1px solid var(--amber-dim);
  padding: .2rem .5rem;
  cursor: pointer;
  text-shadow: inherit;
}
button:hover { background: var(--amber); color: var(--bg); text-shadow: none; }

.cursor { animation: blink 1.05s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* --- Layout --- */
main { padding: 0 1rem; }
section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 4.5rem 0 3rem;
  border-bottom: 1px dashed var(--amber-faint);
}
h2 {
  font: 3rem/1 var(--pixel);
  margin: 0 0 2rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  text-shadow: var(--glow-strong);
}
h2 .path { color: var(--amber-dim); }
h3 {
  font: 1.9rem/1.1 var(--pixel);
  margin: 0 0 .6rem;
  letter-spacing: .05em;
  color: var(--amber-hi);
}
p { margin: 0 0 1rem; max-width: 46rem; }
b { color: var(--amber-hi); font-weight: 600; }
.small { font-size: .85rem; color: var(--amber-dim); }

/* --- Hero --- */
.hero { min-height: calc(100vh - 4rem); display: flex; flex-direction: column; justify-content: center; padding-top: 2rem; }
.boot {
  font: 1.15rem/1.35 var(--pixel);
  color: var(--amber-dim);
  margin: 0 0 1.5rem;
  min-height: 7.5em;
  white-space: pre-wrap;
}
.logo {
  font: clamp(4rem, 17vw, 10rem)/.9 var(--pixel);
  margin: 0;
  letter-spacing: .06em;
  text-shadow: var(--glow-strong);
}
.expand {
  font: 1.4rem/1.2 var(--pixel);
  color: var(--amber-dim);
  letter-spacing: .12em;
  text-transform: uppercase;
  margin: .5rem 0 2rem;
}
.lead { font-size: 1.25rem; max-width: 38rem; }
.motto { font-family: var(--pixel); font-size: 1.6rem; letter-spacing: .1em; color: var(--amber-hi); }
.status { font-size: .8rem; color: var(--amber-dim); margin-top: 2rem; text-transform: uppercase; letter-spacing: .05em; }
.dot {
  display: inline-block; width: .6em; height: .6em; margin-right: .5em;
  background: var(--amber); box-shadow: var(--glow-strong);
  animation: blink 2s steps(1) infinite;
}

/* --- Manifesto --- */
.manifesto { list-style: none; counter-reset: m; padding: 0; margin: 0 0 2.5rem; }
.manifesto li { counter-increment: m; display: grid; grid-template-columns: 3.5rem 1fr; margin-bottom: 1.4rem; }
.manifesto li::before {
  content: counter(m, decimal-leading-zero);
  font: 2.2rem/1 var(--pixel);
  color: var(--amber-dim);
}
.manifesto p { font-size: 1.08rem; }
blockquote {
  margin: 0;
  padding: 1.2rem 1.4rem;
  border-left: 3px solid var(--amber);
  background: rgba(255, 176, 0, .04);
  font: 1.7rem/1.25 var(--pixel);
  color: var(--amber-hi);
}
blockquote p { margin: 0; }

/* --- Tecnologia --- */
.units {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 1.2rem;
  margin: 2rem 0;
}
.unit, .panel {
  border: 1px solid var(--amber-dim);
  padding: 1.2rem 1.3rem;
  background: rgba(255, 176, 0, .025);
  position: relative;
}
.unit::before {
  content: "┌";
  position: absolute; top: -.85rem; left: -.45rem;
  color: var(--amber-hi);
}
.acr { font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; color: var(--amber-dim); }
.unit p:not(.acr) { font-size: .92rem; }
.pipeline { margin: 0 0 1rem; padding-left: 1.6rem; font-size: .9rem; }
.pipeline li::marker { color: var(--amber-dim); }
.panel { margin: 1.5rem 0; }
.panel table { width: 100%; border-collapse: collapse; font-size: .92rem; }
.panel th, .panel td { text-align: left; vertical-align: top; padding: .7rem .5rem; border-top: 1px dashed var(--amber-faint); }
.panel th { width: 30%; font-weight: 600; color: var(--amber-hi); }
.ok, .warn { font-family: var(--pixel); font-size: 1.25rem; padding: 0 .35em; color: var(--bg); text-shadow: none; }
.ok { background: var(--amber); }
.warn { background: transparent; color: var(--amber); outline: 1px solid var(--amber); }
.spec {
  font: .92rem/1.6 var(--mono);
  margin: 0 0 1rem;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.disclaimer { font-size: .85rem; color: var(--amber-dim); border: 1px dashed var(--amber-faint); padding: .8rem 1rem; max-width: none; }

/* --- Investidores --- */
.theses { list-style: none; padding: 0; margin: 2rem 0; }
.theses li { display: grid; grid-template-columns: 3.2rem 1fr; padding: .55rem 0; border-top: 1px dashed var(--amber-faint); }
.tag { font: 1.4rem/1.2 var(--pixel); color: var(--amber-hi); }
.files { list-style: none; padding: 0; margin: 0; }
.files li::before { content: "├── "; color: var(--amber-dim); }
.files li:last-child::before { content: "└── "; }
.cta { margin-top: 2rem; }
.button {
  display: inline-block;
  font: 1.5rem/1.2 var(--pixel);
  padding: .6rem 1.1rem;
  border: 1px solid var(--amber);
  box-shadow: 0 0 12px rgba(255, 176, 0, .25), inset 0 0 12px rgba(255, 176, 0, .12);
}

/* --- Contato / terminal --- */
.contact a { border-bottom-style: solid; }
.term {
  margin-top: 2.5rem;
  border: 1px solid var(--amber-faint);
  padding: 1rem;
  background: rgba(0, 0, 0, .35);
  font-size: .9rem;
}
.term-out { white-space: pre-wrap; color: var(--amber-dim); margin-bottom: .4rem; max-height: 18rem; overflow-y: auto; }
.term-out .cmd { color: var(--amber); }
.prompt { color: var(--amber-hi); margin-right: .5rem; }
.term input {
  font: inherit;
  color: var(--amber);
  background: transparent;
  border: 0;
  outline: 0;
  caret-color: var(--amber);
  text-shadow: inherit;
  width: min(100%, 20rem);
}
.term input::placeholder { color: var(--amber-faint); }

/* --- Rodapé --- */
footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2.5rem 1rem 3rem;
  font-size: .8rem;
  color: var(--amber-dim);
  text-align: center;
}
footer p { margin: 0 auto .3rem; }
footer .motto { font-size: 1.3rem; }

/* --- Celular --- */
@media (max-width: 640px) {
  html { scroll-padding-top: 7rem; }
  .topbar { gap: .4rem .8rem; }
  .topbar nav { order: 3; flex-basis: 100%; gap: .2rem .9rem; }
  .topbar nav a { font-size: .78rem; }
  .toggles { margin-left: auto; }
  h2 { font-size: 2.3rem; }
  .manifesto li { grid-template-columns: 2.6rem 1fr; }
  .panel th, .panel td { display: block; width: auto; padding: .4rem 0; }
  .panel td { border-top: 0; padding-bottom: .8rem; }
  .hero { min-height: calc(100vh - 6rem); }
}

/* --- Movimento reduzido --- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  body.crt::before, body.crt main, .cursor, .dot { animation: none !important; }
  body.crt .screen::after { display: none; }
}