/* ============================================
   HOTFY — folha de estilo única
   Identidade: preto + branco + laranja/vermelho
   + glow + tipografia geométrica + espaço + movimento sutil
   ============================================ */

:root {
  color-scheme: dark;

  /* paleta oficial da marca */
  --preto:         #08090B;  /* fundo principal, header, áreas premium */
  --branco:        #ffffff;  /* textos e contraste */
  --laranja:       #ff7a00;  /* cor principal, ícones e CTAs */
  --vermelho:      #ff2d1a;  /* destaques e gradientes */
  --cinza:         #a7a9ad;  /* textos secundários */
  --cinza-escuro:  #15171b;  /* cards e interface */

  /* papéis na interface */
  --bg:            var(--preto);
  --bg-alt:        #0c0e12;
  --surface:       var(--cinza-escuro);
  --text:          var(--branco);
  --text-muted:    var(--cinza);
  --border:        rgba(255, 255, 255, .08);
  --border-forte:  rgba(255, 255, 255, .16);

  /* gradiente e brilho da marca */
  --gradiente:     linear-gradient(135deg, var(--laranja) 0%, var(--vermelho) 100%);
  --glow:          rgba(255, 122, 0, .28);
  --glow-forte:    rgba(255, 122, 0, .45);

  /* sombras */
  --shadow-sm:     0 1px 2px rgba(0, 0, 0, .4);
  --shadow-md:     0 12px 32px rgba(0, 0, 0, .5);
  --shadow-glow:   0 8px 32px rgba(255, 122, 0, .28);

  /* medidas — cantos arredondados e bastante espaço vazio */
  --radius:        18px;
  --radius-sm:     12px;
  --radius-lg:     24px;
  --maxw:          1160px;
  --gutter:        clamp(1.25rem, 4vw, 2.5rem);
  --section-y:     clamp(4.5rem, 10vw, 8rem);

  /* tipografia geométrica */
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
          Helvetica, Arial, sans-serif;

  /* movimento sutil */
  --suave:         cubic-bezier(.22, .61, .36, 1);
  --dur-curta:     .28s;
  --dur-media:     .5s;
  --dur-longa:     .8s;
}

/* ---------- reset enxuto ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto !important; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}
body {
  margin: 0;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3 {
  line-height: 1.12;
  letter-spacing: -.03em;
  margin: 0 0 .5em;
  font-weight: 800;
}
h1 { font-size: clamp(2.3rem, 6vw, 4rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.75rem); }
h3 { font-size: 1.2rem; font-weight: 700; letter-spacing: -.02em; }
p  { margin: 0 0 1rem; }
:focus-visible { outline: 2px solid var(--laranja); outline-offset: 3px; border-radius: 6px; }

/* texto com o gradiente da marca */
.gradiente {
  background: var(--gradiente);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- layout ---------- */
.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: var(--section-y); position: relative; }
.section--alt { background: var(--bg-alt); }
.section__head { max-width: 44rem; margin-bottom: 3.5rem; }
.section__head p { color: var(--text-muted); font-size: 1.08rem; margin: 0; }
.eyebrow {
  display: inline-block;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--laranja);
  margin-bottom: 1rem;
}
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--laranja); color: #000; padding: .75rem 1.25rem; font-weight: 700;
}
.skip-link:focus { left: 0; }

/* brilho suave atrás de elementos importantes */
.glow::before {
  content: "";
  position: absolute;
  inset: -20% -10% auto;
  height: 70%;
  background: radial-gradient(60% 60% at 50% 0%, var(--glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.glow > * { position: relative; z-index: 1; }

/* ---------- cabeçalho ---------- */
.header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(8, 9, 11, .8);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--dur-media) var(--suave), border-color var(--dur-media) var(--suave);
}
.header[data-rolado="true"] {
  box-shadow: 0 8px 32px rgba(0, 0, 0, .6);
  border-color: var(--border-forte);
}
.header__inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 76px; }

.logo { display: inline-flex; align-items: center; gap: .6rem; text-decoration: none; }
.logo__mark { width: 34px; height: 34px; flex: none; }
.logo__texto {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -.045em;
  line-height: 1;
}
.logo__texto .fy {
  background: var(--gradiente);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.nav { display: flex; align-items: center; gap: .25rem; }
.nav a {
  text-decoration: none; font-size: .95rem; font-weight: 500; color: var(--text-muted);
  padding: .55rem .85rem; border-radius: var(--radius-sm);
  transition: color var(--dur-curta) var(--suave);
}
.nav a:hover { color: var(--text); }
.nav a[aria-current="page"] { color: var(--text); font-weight: 600; }
.header__cta { margin-left: .6rem; }
.nav-toggle {
  display: none; background: none; border: 1px solid var(--border-forte); border-radius: var(--radius-sm);
  padding: .55rem; cursor: pointer; color: var(--text);
}

/* sublinhado deslizante */
.nav a:not(.btn) { position: relative; }
.nav a:not(.btn)::after {
  content: "";
  position: absolute; left: .85rem; right: .85rem; bottom: .15rem;
  height: 2px; border-radius: 2px;
  background: var(--gradiente);
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--dur-curta) var(--suave);
}
.nav a:not(.btn):hover::after,
.nav a:not(.btn):focus-visible::after,
.nav a:not(.btn)[aria-current="page"]::after { transform: scaleX(1); }

@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; }
  .nav {
    position: absolute; inset: 100% 0 auto; flex-direction: column; align-items: stretch; gap: .15rem;
    background: var(--preto); border-bottom: 1px solid var(--border);
    padding: .75rem var(--gutter) 1.5rem; box-shadow: var(--shadow-md);
  }
  /* Com JS o menu fica no DOM (para poder animar) mas invisível e fora da
     árvore de acessibilidade. A classe .js é aplicada no <head>, antes da
     primeira pintura, então nada pisca. Sem JS ele permanece navegável. */
  .js .nav {
    opacity: 0; visibility: hidden; transform: translateY(-8px);
    transition: opacity var(--dur-curta) var(--suave),
                transform var(--dur-curta) var(--suave),
                visibility 0s linear var(--dur-curta);
  }
  .js .nav[data-aberto="true"] {
    opacity: 1; visibility: visible; transform: translateY(0);
    transition: opacity var(--dur-curta) var(--suave),
                transform var(--dur-curta) var(--suave),
                visibility 0s;
  }
  .nav a { padding: .75rem .5rem; }
  .header__cta { margin: .75rem 0 0; text-align: center; }
}

/* ---------- botões ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  font: inherit; font-weight: 600; font-size: .95rem; text-decoration: none; cursor: pointer;
  padding: .8rem 1.5rem; border-radius: var(--radius-sm); border: 1px solid transparent;
  transition: transform var(--dur-curta) var(--suave),
              box-shadow var(--dur-curta) var(--suave),
              border-color var(--dur-curta) var(--suave),
              background-color var(--dur-curta) var(--suave);
}
.btn--primary {
  background: var(--gradiente);
  /* texto escuro sobre o gradiente: 7,62:1 no laranja e 5,35:1 no vermelho.
     Com branco ficaria em 2,61:1, abaixo do minimo legivel. */
  color: var(--preto);
  font-weight: 700;
  box-shadow: 0 4px 16px rgba(255, 122, 0, .2);
}
.btn--primary:hover { box-shadow: var(--shadow-glow); }
.btn--ghost {
  background: transparent; color: var(--text); border-color: var(--border-forte);
}
.btn--ghost:hover { border-color: var(--laranja); background: rgba(255, 122, 0, .06); }
.btn--lg { padding: 1rem 2rem; font-size: 1.02rem; }

/* ---------- hero ---------- */
.hero { padding-block: clamp(4rem, 11vw, 9rem) var(--section-y); position: relative; overflow: hidden; }
.hero::before {
  content: "";
  position: absolute;
  top: -30%; left: 50%; transform: translateX(-50%);
  width: min(1100px, 130%); height: 90%;
  background: radial-gradient(50% 50% at 50% 50%, var(--glow) 0%, transparent 70%);
  pointer-events: none;
}
.hero > * { position: relative; }
.hero__grid { display: grid; gap: clamp(2.5rem, 5vw, 4.5rem); align-items: center; grid-template-columns: 1fr; }
@media (min-width: 900px) { .hero__grid { grid-template-columns: 1.05fr .95fr; } }
.hero p.lead { font-size: clamp(1.08rem, 2vw, 1.25rem); color: var(--text-muted); max-width: 36rem; }
.hero__actions { display: flex; flex-wrap: wrap; gap: .9rem; margin-top: 2.25rem; }

.hero__panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 1.5rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .85rem; line-height: 1.9; color: var(--text-muted);
  overflow-x: auto;
  will-change: transform;
}
.hero__panel .k {
  background: var(--gradiente);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 600;
}
.hero__panel .dots { display: flex; gap: .45rem; margin-bottom: 1.1rem; }
.hero__panel .dots span { width: 11px; height: 11px; border-radius: 50%; background: rgba(255,255,255,.14); }

/* ---------- grid de cards ---------- */
.grid { display: grid; gap: 1.5rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 17.5rem), 1fr)); }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: transform var(--dur-curta) var(--suave),
              box-shadow var(--dur-curta) var(--suave),
              border-color var(--dur-curta) var(--suave);
}
.card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 122, 0, .35);
  box-shadow: 0 12px 32px rgba(255, 122, 0, .12);
}
.card p { color: var(--text-muted); font-size: .96rem; }
.card p:last-child { margin-bottom: 0; }
.card__icon {
  width: 46px; height: 46px; border-radius: 12px;
  background: rgba(255, 122, 0, .12);
  border: 1px solid rgba(255, 122, 0, .22);
  color: var(--laranja);
  display: grid; place-items: center; margin-bottom: 1.25rem;
}
.card__icon svg { width: 22px; height: 22px; }

/* ---------- etapas ---------- */
.steps { counter-reset: step; display: grid; gap: 2rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr)); }
.step { position: relative; padding-top: 3.5rem; }
.step::before {
  counter-increment: step; content: counter(step, decimal-leading-zero);
  position: absolute; top: 0; left: 0;
  font-size: .82rem; font-weight: 800; letter-spacing: .08em;
  background: var(--gradiente);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.step::after {
  content: ""; position: absolute; top: 1.9rem; left: 0;
  width: 28px; height: 2px; border-radius: 2px; background: var(--gradiente); opacity: .55;
}
.step p { color: var(--text-muted); font-size: .96rem; margin: 0; }

/* ---------- faixa de CTA ---------- */
.cta-band { background: var(--bg-alt); border-block: 1px solid var(--border); position: relative; overflow: hidden; }
.cta-band::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(60% 100% at 50% 100%, var(--glow) 0%, transparent 70%);
  pointer-events: none;
}
.cta-band__inner {
  position: relative;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1.75rem;
  padding-block: clamp(3rem, 7vw, 5rem);
}
.cta-band h2 { margin: 0 0 .4rem; }
.cta-band p { margin: 0; color: var(--text-muted); }

/* ---------- listas ---------- */
.checklist { list-style: none; padding: 0; margin: 0; display: grid; gap: .85rem; }
.checklist li { position: relative; padding-left: 1.9rem; color: var(--text-muted); }
.checklist li::before {
  content: ""; position: absolute; left: 0; top: .5em; width: 1rem; height: .55rem;
  border-left: 2.5px solid var(--laranja); border-bottom: 2.5px solid var(--laranja);
  transform: rotate(-45deg);
}

/* ---------- formulário ---------- */
.form { display: grid; gap: 1.25rem; }
.field { display: grid; gap: .45rem; }
.field label { font-size: .9rem; font-weight: 600; }
.field input, .field textarea, .field select {
  font: inherit; color: var(--text); background: rgba(255, 255, 255, .03);
  border: 1px solid var(--border-forte); border-radius: var(--radius-sm);
  padding: .85rem 1rem; width: 100%;
  transition: border-color var(--dur-curta) var(--suave), box-shadow var(--dur-curta) var(--suave);
}
.field input::placeholder, .field textarea::placeholder { color: rgba(167, 169, 173, .6); }
.field input:focus, .field textarea:focus, .field select:focus {
  border-color: var(--laranja);
  outline: 2px solid rgba(255, 122, 0, .35); /* nunca removemos o indicador de foco */
  outline-offset: 1px;
  box-shadow: 0 0 0 4px rgba(255, 122, 0, .12);
}
.field textarea { min-height: 9rem; resize: vertical; }
.field__error { font-size: .86rem; color: #ff6b5e; min-height: 1.2em; }
.field input[aria-invalid="true"], .field textarea[aria-invalid="true"] { border-color: var(--vermelho); }
.form__note { font-size: .88rem; color: var(--text-muted); }
.form-status {
  border-radius: var(--radius-sm); padding: .95rem 1.15rem; font-size: .94rem;
  border: 1px solid var(--border-forte); background: rgba(255, 255, 255, .03);
}
.form-status[hidden] { display: none; }
.form-status[data-tipo="erro"] { border-color: var(--vermelho); background: rgba(255, 45, 26, .08); }
.form-status[data-tipo="sucesso"] { border-color: #1fbf7a; background: rgba(31, 191, 122, .08); }
.form-status[data-tipo="aviso"] { border-color: var(--laranja); background: rgba(255, 122, 0, .08); }

/* campo-armadilha anti-spam: some da tela sem usar display:none,
   que alguns robôs detectam */
.armadilha { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* ---------- rodapé ---------- */
.footer { border-top: 1px solid var(--border); background: var(--bg-alt); padding-block: 4rem 2rem; }
.footer__grid { display: grid; gap: 2.5rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr)); }
.footer h3 { font-size: .8rem; text-transform: uppercase; letter-spacing: .12em; color: var(--text-muted); margin-bottom: 1rem; font-weight: 700; }
.footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .6rem; }
.footer a { text-decoration: none; color: var(--text-muted); font-size: .95rem; transition: color var(--dur-curta) var(--suave); }
.footer a:hover { color: var(--laranja); }
.footer__bottom {
  margin-top: 3rem; padding-top: 1.75rem; border-top: 1px solid var(--border);
  display: flex; flex-wrap: wrap; gap: .75rem; justify-content: space-between;
  font-size: .87rem; color: var(--text-muted);
}
.footer__tagline { color: var(--text-muted); font-size: .95rem; margin-top: 1rem; max-width: 22rem; }

/* marcador de conteúdo a substituir (não deve existir em produção) */
.todo {
  border: 1px dashed var(--laranja); border-radius: 6px;
  padding: .15rem .45rem; font-size: .85em; color: var(--laranja); font-weight: 600;
}

/* ============================================
   Movimento — só transform e opacity.
   A guarda de prefers-reduced-motion no topo
   zera a duração de tudo que está aqui.
   ============================================ */

/* scroll reveal: o estado inicial só existe com JavaScript,
   para que sem JS nenhum conteúdo fique invisível */
.js .reveal {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity var(--dur-longa) var(--suave), transform var(--dur-longa) var(--suave);
}
.js .reveal.is-visible { opacity: 1; transform: translateY(0); }

/* terminal da home: linhas surgem em sequência */
.js .hero__panel [data-linha] {
  opacity: 0;
  transform: translateY(4px);
  transition: opacity var(--dur-media) var(--suave), transform var(--dur-media) var(--suave);
}
.js .hero__panel [data-linha].is-visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: no-preference) {
  /* entrada da página: só opacidade, nunca transform no body —
     transform no body quebraria o position:fixed da barra de progresso */
  body { animation: entradaPagina var(--dur-media) var(--suave) both; }
  @keyframes entradaPagina { from { opacity: 0; } to { opacity: 1; } }

  .js body { transition: opacity var(--dur-curta) var(--suave); }
  .js.saindo body { opacity: 0; }
}

/* barra de progresso de leitura — scaleX em vez de width,
   para não recalcular layout a cada evento de rolagem */
.progress-bar {
  position: fixed; top: 0; left: 0; right: 0; height: 3px;
  background: var(--gradiente);
  transform: scaleX(0); transform-origin: left;
  z-index: 60; pointer-events: none;
}

/* botão de voltar ao topo */
.ao-topo {
  position: fixed;
  right: clamp(1rem, 3vw, 2rem);
  bottom: clamp(1rem, 3vw, 2rem);
  z-index: 55;
  width: 46px; height: 46px;
  display: grid; place-items: center;
  border-radius: 50%;
  border: 1px solid var(--border-forte);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  box-shadow: var(--shadow-md);
  opacity: 0; transform: translateY(10px) scale(.9); pointer-events: none;
  transition: opacity var(--dur-media) var(--suave),
              transform var(--dur-media) var(--suave),
              border-color var(--dur-curta) var(--suave);
}
.ao-topo[data-visivel="true"] { opacity: 1; transform: translateY(0) scale(1); pointer-events: auto; }
.ao-topo:hover { border-color: var(--laranja); }
.ao-topo svg { width: 18px; height: 18px; }

/* botão magnético */
.btn[data-magnetico] { will-change: transform; }