/*
 * Callisto — site.
 * Linguagem visual de instrumento: grafite, linhas finas, um único sinal de
 * cor (o azul da lua do logo) e tipografia mono nos dados. Sem brilhos,
 * gradientes de fundo ou emojis.
 */

:root {
  color-scheme: dark;
  --bg: #07080a;
  --bg-1: #0c0e11;
  --bg-2: #12151a;
  --line: rgba(255, 255, 255, 0.08);
  --line-2: rgba(255, 255, 255, 0.14);
  --text: #eceff3;
  --muted: #9aa3ae;
  --faint: #737d89; /* 4.6:1 sobre --bg — AA para texto pequeno */
  --signal: #5ea8ff;
  --signal-ink: #04101f;
  --live: #4ade80;
  --radius: 10px;
  --wrap: 1180px;
  --sans: 'Schibsted Grotesk', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 16px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1,
h2,
h3,
p,
ol,
ul,
dl,
dd {
  margin: 0;
}

ol,
ul {
  padding: 0;
  list-style: none;
}

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

p a,
.legal a {
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--line-2);
  text-underline-offset: 3px;
}

p a:hover,
.legal a:hover {
  text-decoration-color: var(--signal);
}

b,
strong {
  font-weight: 600;
  color: var(--text);
}

:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
  border-radius: 4px;
}

.sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.skip {
  position: absolute;
  left: 16px;
  top: -48px;
  z-index: 100;
  padding: 8px 14px;
  background: var(--text);
  color: var(--bg);
  border-radius: 6px;
  font-weight: 600;
}

.skip:focus {
  top: 12px;
}

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

/* ------------------------------------------------------------------ nav */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(7, 8, 10, 0.82);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 17px;
  letter-spacing: -0.01em;
}

.mark {
  width: 22px;
  height: 22px;
  color: var(--text);
  flex: none;
}

.navlinks {
  display: flex;
  gap: 28px;
  margin-right: auto;
}

.navlinks a {
  color: var(--muted);
  font-size: 14px;
  transition: color 0.15s;
}

.navlinks a:hover {
  color: var(--text);
}

.navright {
  display: flex;
  align-items: center;
  gap: 14px;
}

.langswitch {
  display: flex;
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 2px;
}

.langswitch button {
  font: 500 11px/1 var(--mono);
  letter-spacing: 0.04em;
  color: var(--faint);
  background: none;
  border: 0;
  padding: 6px 8px;
  border-radius: 5px;
  cursor: pointer;
}

.langswitch button:hover {
  color: var(--text);
}

.langswitch button.on {
  color: var(--text);
  background: var(--bg-2);
}

/* -------------------------------------------------------------- buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 48px;
  padding: 0 22px;
  border-radius: 8px;
  font: 600 15px/1 var(--sans);
  letter-spacing: -0.005em;
  white-space: nowrap;
  border: 1px solid transparent;
  transition:
    background 0.15s,
    border-color 0.15s,
    color 0.15s;
}

.btn .ico {
  width: 16px;
  height: 16px;
  flex: none;
}

.btn-primary {
  background: var(--text);
  color: #090a0c;
}

.btn-primary:hover {
  background: #ffffff;
}

.btn-line {
  border-color: var(--line-2);
  color: var(--text);
}

.btn-line:hover {
  border-color: rgba(255, 255, 255, 0.32);
  background: rgba(255, 255, 255, 0.03);
}

/* Botão do nav e da tabela de preços. */
.btn-sm {
  height: 36px;
  padding: 0 14px;
  font-size: 13.5px;
  border-radius: 7px;
}

.nav .btn-sm {
  background: var(--text);
  color: #090a0c;
}

.btn-block {
  width: 100%;
}

/* ----------------------------------------------------------------- hero */

.hero {
  position: relative;
  padding: 88px 0 0;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

/* Malha de 64 px, só no hero e esmaecendo para baixo. */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  background-position: center top;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.55), transparent 85%);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.55), transparent 85%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 64px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font: 500 12.5px/1 var(--mono);
  letter-spacing: 0.02em;
  color: var(--muted);
  text-transform: uppercase;
}

.eyebrow .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--signal);
}

.hero h1 {
  margin-top: 28px;
  font-weight: 600;
  font-size: clamp(44px, 6.4vw, 82px);
  line-height: 0.98;
  letter-spacing: -0.035em;
}

.lead {
  margin-top: 28px;
  max-width: 34em;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.6;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 36px;
}

.facts {
  display: flex;
  flex-wrap: wrap;
  margin-top: 22px;
  font: 400 13px/1 var(--mono);
  color: var(--faint);
}

.facts li + li::before {
  content: '/';
  margin: 0 10px;
  color: var(--line-2);
}

/* Console de legendas: o "produto" no hero. */
.console {
  background: var(--bg-1);
  border: 1px solid var(--line-2);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 30px 80px -40px rgba(0, 0, 0, 0.9);
}

.console-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  font: 500 12px/1 var(--mono);
  color: var(--muted);
}

.live {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.live i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--live);
  animation: pulse 1.6s ease-in-out infinite;
}

.pair b {
  color: var(--signal);
  font-weight: 500;
  margin: 0 2px;
}

.tc {
  margin-left: auto;
  font-variant-numeric: tabular-nums;
}

.wave {
  display: flex;
  align-items: center;
  gap: 3px;
  height: 56px;
  padding: 0 16px;
  border-bottom: 1px solid var(--line);
}

.wave span {
  flex: 1;
  min-width: 2px;
  height: var(--h, 20%);
  background: var(--line-2);
  border-radius: 1px;
  transition: height 0.18s ease;
}

.wave span.hot {
  background: var(--signal);
}

.lines {
  display: flex;
  flex-direction: column;
  min-height: 300px;
}

.lines li {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) auto;
  column-gap: 14px;
  row-gap: 6px;
  padding: 16px;
  border-bottom: 1px solid var(--line);
}

.lines li:last-child {
  border-bottom: 0;
}

.lines .t {
  grid-row: 1 / span 2;
  font: 400 12px/1.7 var(--mono);
  color: var(--faint);
  font-variant-numeric: tabular-nums;
}

.lines .src {
  grid-column: 2;
  color: var(--faint);
  font-size: 14px;
  line-height: 1.5;
}

.lines .dst {
  grid-column: 2;
  color: var(--text);
  font-size: 16px;
  line-height: 1.5;
}

.lines .lag {
  grid-column: 3;
  grid-row: 1 / span 2;
  align-self: start;
  font: 500 11.5px/1 var(--mono);
  color: var(--signal);
  padding: 5px 7px;
  border: 1px solid rgba(94, 168, 255, 0.3);
  border-radius: 5px;
  font-variant-numeric: tabular-nums;
}

.lines li.typing .dst::after {
  content: '';
  display: inline-block;
  width: 8px;
  height: 1.05em;
  margin-left: 2px;
  vertical-align: -0.15em;
  background: var(--signal);
  animation: blink 1s steps(2) infinite;
}

.lines li.enter {
  animation: rise 0.35s ease both;
}

.works {
  position: relative;
  display: flex;
  align-items: center;
  gap: 24px;
  margin-top: 88px;
  padding-top: 22px;
  padding-bottom: 22px;
  border-top: 1px solid var(--line);
  font-size: 14px;
}

.label,
.kicker {
  font: 500 12px/1 var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--faint);
  white-space: nowrap;
}

.works ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 28px;
  color: var(--muted);
}

/* ------------------------------------------------------------- sections */

.section {
  padding: 112px 0;
  border-bottom: 1px solid var(--line);
}

.section-head {
  max-width: 720px;
  margin-bottom: 56px;
}

.kicker {
  display: flex;
  gap: 12px;
  color: var(--signal);
}

.kicker span {
  color: var(--faint);
}

.section h2 {
  margin-top: 18px;
  font-weight: 600;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.section-lead {
  margin-top: 18px;
  color: var(--muted);
  font-size: 17px;
}

.note {
  margin-top: 18px;
  color: var(--faint);
  font-size: 14px;
}

/* Fluxo de sinal A → B → C. */
.flow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
}

.node {
  position: relative;
  padding: 28px 28px 32px;
}

.node + .node {
  border-left: 1px solid var(--line-2);
}

/* Seta na divisa entre nós. */
.node + .node::before {
  content: '';
  position: absolute;
  left: -6px;
  top: 34px;
  width: 10px;
  height: 10px;
  background: var(--bg);
  border-top: 1px solid var(--line-2);
  border-right: 1px solid var(--line-2);
  transform: rotate(45deg);
}

.node-core {
  background: var(--bg-1);
}

.node-n {
  display: inline-grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border: 1px solid var(--line-2);
  border-radius: 6px;
  font: 500 12px/1 var(--mono);
  color: var(--muted);
}

.node-core .node-n {
  border-color: var(--signal);
  color: var(--signal);
}

.node h3 {
  margin-top: 22px;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.node p {
  margin-top: 10px;
  color: var(--muted);
  font-size: 15px;
}

/* Modos. */
.modes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.mode {
  display: flex;
  flex-direction: column;
  padding: 32px;
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.mode-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.mode h3 {
  font-size: 26px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.state {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font: 500 11.5px/1 var(--mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

.state::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--live);
}

.mode > p {
  margin-top: 14px;
  color: var(--muted);
  font-size: 16px;
}

.spec-mini {
  margin-top: auto;
  padding-top: 28px;
}

.spec-mini div {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 16px;
  padding: 11px 0;
  border-top: 1px solid var(--line);
  font-size: 14.5px;
}

.spec-mini dt {
  font: 500 12px/1.9 var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--faint);
}

/* Ficha técnica. */
.spec {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 48px;
  border-top: 1px solid var(--line-2);
}

.spec div {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 20px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.spec dt {
  font: 500 12px/1.9 var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--faint);
}

.spec dd {
  color: var(--text);
  font-size: 15.5px;
}

/* Preços como tabela. */
.prices {
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  overflow: hidden;
}

.prow {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr) minmax(0, 1fr) 170px;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  border-top: 1px solid var(--line);
}

.prow-head {
  border-top: 0;
  padding-top: 14px;
  padding-bottom: 14px;
  background: var(--bg-1);
  font: 500 11.5px/1 var(--mono);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--faint);
}

.prow-featured {
  background: rgba(94, 168, 255, 0.05);
  box-shadow: inset 2px 0 0 var(--signal);
}

.pack {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 12px;
}

.pack b {
  font-size: 17px;
  font-weight: 600;
}

.pack small {
  color: var(--faint);
  font-size: 13px;
}

.pack .pick {
  font: 500 11px/1 var(--mono);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--signal);
}

.amount {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.per {
  font: 400 14px/1 var(--mono);
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.prow [role='cell']:last-child {
  text-align: right;
}

/* Downloads. */
.downloads {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.dl {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding: 32px;
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.dl.current {
  border-color: rgba(94, 168, 255, 0.45);
}

.dl-head {
  display: flex;
  align-items: center;
  gap: 16px;
}

.dl-ico {
  width: 30px;
  height: 30px;
  color: var(--text);
}

.dl h3 {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.dl-head p {
  margin-top: 4px;
  font: 400 13px/1.4 var(--mono);
  color: var(--faint);
}

/* Contorno por padrão; preenchido no sistema do visitante (script.js). */
.dl .btn {
  background: transparent;
  color: var(--text);
  border-color: var(--line-2);
}

.dl.current .btn,
.dl .btn:hover {
  background: var(--text);
  color: #090a0c;
  border-color: var(--text);
}

.dl-note {
  color: var(--faint);
  font-size: 14px;
}

/* Dúvidas. */
.faq-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 64px;
  align-items: start;
}

.faq-grid .section-head {
  margin-bottom: 0;
  position: sticky;
  top: 100px;
}

.faq {
  border-top: 1px solid var(--line-2);
}

.faq details {
  border-bottom: 1px solid var(--line);
}

.faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 0;
  font-size: 17px;
  font-weight: 500;
  cursor: pointer;
  list-style: none;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: '+';
  flex: none;
  font: 400 20px/1 var(--mono);
  color: var(--faint);
  transition: transform 0.2s;
}

.faq details[open] summary::after {
  transform: rotate(45deg);
  color: var(--signal);
}

.faq details p {
  padding: 0 40px 24px 0;
  color: var(--muted);
}

/* --------------------------------------------------------------- footer */

.footer {
  padding: 56px 0 40px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px 48px;
  align-items: start;
}

.footer-brand p {
  margin-top: 12px;
  color: var(--faint);
  font-size: 14px;
}

.foot-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  font-size: 14px;
  color: var(--muted);
}

.foot-links a:hover {
  color: var(--text);
}

.copy {
  grid-column: 1 / -1;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font: 400 12.5px/1.5 var(--mono);
  color: var(--faint);
}

/* ---------------------------------------------------------- legal pages */

.legal {
  max-width: 760px;
  margin: 0 auto;
  padding: 72px 24px 96px;
  color: var(--muted);
}

.legal h1 {
  font-size: clamp(32px, 5vw, 44px);
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--text);
}

.legal .updated {
  margin-top: 14px;
  font: 400 13px/1.5 var(--mono);
  color: var(--faint);
}

.legal h2 {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
}

.legal p,
.legal ul {
  margin-top: 14px;
}

.legal ul {
  padding-left: 20px;
  list-style: disc;
}

.legal li + li {
  margin-top: 6px;
}

.legal-links {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: 14px;
}

/* Nav das páginas legais: só marca e botão. */
.nav-legal {
  justify-content: space-between;
}

/* ------------------------------------------------------------ animation */

@keyframes pulse {
  50% {
    opacity: 0.35;
  }
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}

/* ----------------------------------------------------------- responsive */

@media (max-width: 1020px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 56px;
  }

  .console {
    max-width: 640px;
  }

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

  .faq-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .faq-grid .section-head {
    position: static;
  }
}

@media (max-width: 820px) {
  .navlinks {
    display: none;
  }

  .navright {
    margin-left: auto;
  }

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

  .node + .node {
    border-left: 0;
    border-top: 1px solid var(--line-2);
  }

  .node + .node::before {
    left: 34px;
    top: -6px;
    transform: rotate(135deg);
  }

  .modes,
  .downloads {
    grid-template-columns: 1fr;
  }

  .prow {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px 16px;
    padding: 18px 20px;
  }

  .prow-head {
    display: none;
  }

  .prices .prow:nth-child(2) {
    border-top: 0;
  }

  .pack {
    grid-column: 1 / -1;
  }

  .per::after {
    content: ' /min';
  }

  .prow [role='cell']:last-child {
    grid-column: 1 / -1;
    text-align: left;
  }

  .prow .btn {
    width: 100%;
  }
}

@media (max-width: 640px) {
  .wrap {
    padding: 0 16px;
  }

  .nav-inner {
    gap: 12px;
  }

  .langswitch button {
    padding: 6px 6px;
  }

  .hero {
    padding-top: 56px;
  }

  .lead {
    font-size: 16.5px;
  }

  .cta-row .btn {
    flex: 1 1 100%;
  }

  .lines li {
    grid-template-columns: minmax(0, 1fr) auto;
    padding: 14px;
  }

  .lines .t {
    grid-row: auto;
    grid-column: 1;
  }

  .lines .src,
  .lines .dst {
    grid-column: 1 / -1;
  }

  .lines .lag {
    grid-column: 2;
    grid-row: 1;
  }

  .works {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    margin-top: 64px;
  }

  .section {
    padding: 80px 0;
  }

  .section-head {
    margin-bottom: 40px;
  }

  .node,
  .mode,
  .dl {
    padding: 24px;
  }

  .spec div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .spec-mini div {
    grid-template-columns: 84px 1fr;
  }

  .faq details p {
    padding-right: 0;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }
}