/* Allfa · identidade: preto e branco alternados, acento lilás */
:root {
  --black: #000;
  --white: #fff;
  --accent: #7b8ff0;
  --accent-ink: #0b0d12;
  --gray: #6e6e6e;
  --gray-dark: #a3a3a3;
  --card-light: #f7f7f5;
  --card-dark: #141414;
  --line-dark: #2a2a2a;
  --line-light: #e4e4e0;

  --font-display: "Archivo", Arial, sans-serif;
  --font-body: "Inter", Arial, sans-serif;

  --wrap: 1200px;
  --gutter: clamp(16px, 4vw, 40px);
  --section: clamp(72px, 11vw, 140px);
  --radius: 14px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--white);
  color: var(--black);
  font: 400 17px/1.6 var(--font-body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3 { margin: 0; font-family: var(--font-display); font-weight: 800; letter-spacing: -0.02em; line-height: 1.05; }
p { margin: 0; }
[hidden] { display: none !important; }
em { font-style: normal; color: var(--accent); }

.sr-only, .hp { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip { position: absolute; left: -999px; top: 8px; z-index: 100; background: var(--accent); color: var(--accent-ink); padding: 8px 14px; border-radius: 8px; }
.skip:focus { left: 8px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: var(--section) 0; }
.dark { background: var(--black); color: var(--white); }
.light { background: var(--white); color: var(--black); }

.label {
  font: 600 12px/1 var(--font-body);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 28px;
}
.dark .label { color: var(--gray-dark); }
.muted { color: var(--gray); font-size: 18px; }
.dark .muted { color: var(--gray-dark); }

.h2 { font-size: clamp(34px, 5vw, 60px); }
.h2--narrow { max-width: 16ch; margin-bottom: 56px; }
.h3 { font: 800 clamp(26px, 3vw, 36px)/1.1 var(--font-display); letter-spacing: -0.02em; }

.split { display: grid; gap: 28px; margin-bottom: 64px; }
@media (min-width: 900px) {
  .split { grid-template-columns: 1.25fr 1fr; gap: 64px; align-items: end; }
}

/* Botões */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 52px; padding: 0 26px; border-radius: 999px; border: 1px solid transparent;
  font: 600 16px/1 var(--font-body); text-decoration: none; cursor: pointer;
  transition: transform .15s ease, background-color .15s ease, color .15s ease, border-color .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:disabled { opacity: .6; cursor: progress; transform: none; }
.btn--sm { min-height: 42px; padding: 0 20px; font-size: 15px; }
.btn--accent { background: var(--accent); color: var(--accent-ink); }
.btn--accent:hover { background: #95a5f5; }
.btn--ghost { border-color: #3a3a3a; color: var(--white); }
.btn--ghost:hover { border-color: var(--white); }
.btn--dark { background: var(--black); color: var(--white); }
.btn--ghost-dark { border-color: var(--line-light); color: var(--black); background: transparent; }
.btn--ghost-dark:hover { border-color: var(--black); }

/* Navegação */
.nav { position: fixed; inset: 0 0 auto 0; z-index: 50; background: rgba(0,0,0,.72); backdrop-filter: saturate(140%) blur(12px); -webkit-backdrop-filter: saturate(140%) blur(12px); border-bottom: 1px solid transparent; transition: border-color .2s; }
.nav.is-scrolled { border-bottom-color: var(--line-dark); }
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.nav__logo img { width: 128px; height: auto; }
.nav__menu { display: flex; align-items: center; gap: 32px; }
.nav__menu a:not(.btn) { color: #d6d6d6; text-decoration: none; font-size: 15px; font-weight: 500; }
.nav__menu a:not(.btn):hover { color: var(--white); }
.nav__toggle { display: none; }

@media (max-width: 860px) {
  .nav__toggle { display: grid; gap: 6px; place-content: center; width: 44px; height: 44px; background: none; border: 0; cursor: pointer; }
  .nav__toggle span:not(.sr-only) { display: block; width: 22px; height: 2px; background: var(--white); transition: transform .2s, opacity .2s; }
  .nav__toggle[aria-expanded="true"] span:nth-of-type(2) { transform: translateY(4px) rotate(45deg); }
  .nav__toggle[aria-expanded="true"] span:nth-of-type(3) { transform: translateY(-4px) rotate(-45deg); }
  .nav__menu {
    position: absolute; top: 72px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--black); border-bottom: 1px solid var(--line-dark);
    padding: 8px var(--gutter) 24px; display: none;
  }
  .nav__menu.is-open { display: flex; }
  .nav__menu a:not(.btn) { padding: 16px 0; border-bottom: 1px solid var(--line-dark); font-size: 17px; }
  .nav__menu .btn { margin-top: 20px; }
}

/* Hero */
.hero { position: relative; padding: calc(72px + clamp(40px, 9vh, 128px)) 0 0; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: auto -20% -40% auto; width: 70vw; height: 70vw; max-width: 900px; max-height: 900px;
  background: radial-gradient(closest-side, rgba(123,143,240,.28), rgba(123,143,240,0));
  pointer-events: none;
}
.hero .wrap { position: relative; }
.hero h1 { margin: 0; }
.hero__eyebrow { display: block; }
/* Título limitado também pela altura da tela, para a primeira dobra caber em notebooks */
.hero__title { display: block; font-size: clamp(42px, min(7.4vw, 10.5vh), 104px); font-weight: 900; max-width: 17ch; letter-spacing: -0.035em; line-height: .98; }
.hero__lead { margin-top: clamp(20px, 3.5vh, 32px); max-width: 60ch; font-size: clamp(18px, 1.6vw, 21px); color: #c9c9c9; }
.hero__ctas { margin-top: clamp(24px, 4.5vh, 40px); display: flex; flex-wrap: wrap; gap: 12px; }

.ticker { margin-top: clamp(48px, 9vh, 120px); border-top: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark); overflow: hidden; }
.ticker__track { display: flex; width: max-content; animation: ticker 40s linear infinite; }
.ticker__track span { padding: 22px 28px; font: 700 15px/1 var(--font-display); text-transform: uppercase; letter-spacing: .08em; color: #bdbdbd; white-space: nowrap; }
.ticker__track span::after { content: "✦"; color: var(--accent); margin-left: 56px; }
@keyframes ticker { to { transform: translateX(-50%); } }

/* Cards */
.cards { display: grid; gap: 16px; }
.cards--4 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 440px), 1fr)); }
.cards--3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); margin-bottom: 48px; }
.card { background: var(--card-light); border-radius: var(--radius); padding: 32px 28px; display: flex; flex-direction: column; gap: 14px; }
.card h3 { font-size: 24px; }
.card p { color: #3d3d3d; }
.card ul { list-style: none; margin: 8px 0 0; padding: 18px 0 0; border-top: 1px solid var(--line-light); display: grid; gap: 10px; font-size: 15px; }
.card li { display: flex; gap: 10px; }
.card li::before { content: "✦"; color: var(--accent); flex: none; }
.card__link { font-weight: 600; font-size: 15px; color: var(--black); text-decoration: underline; text-decoration-color: var(--accent); text-decoration-thickness: 2px; text-underline-offset: 4px; }
.card__link:first-of-type { margin-top: auto; padding-top: 6px; }
.card__num { font: 700 13px/1 var(--font-display); color: var(--accent); letter-spacing: .1em; }
.card--plain { background: transparent; border-top: 2px solid var(--black); border-radius: 0; padding: 28px 0 0; }
.card--dark { background: var(--card-dark); border: 1px solid var(--line-dark); }
.card--dark p { color: var(--gray-dark); }

/* Método */
.phases { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.phase { background: var(--card-dark); border: 1px solid var(--line-dark); border-radius: var(--radius); padding: 32px 28px; }
.phase__big { display: block; font: 900 clamp(88px, 10vw, 128px)/.85 var(--font-display); color: var(--accent); letter-spacing: -0.05em; margin-bottom: 28px; }
.phase h3 { font-size: 26px; margin-bottom: 10px; }
.phase p { color: var(--gray-dark); }

.cycle { list-style: none; margin: 48px 0 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); border-top: 1px solid var(--line-dark); }
.cycle li { padding: 22px 20px 0 0; font-weight: 600; font-size: 16px; position: relative; }
.cycle li span { display: block; font: 700 12px/1 var(--font-display); color: var(--accent); letter-spacing: .1em; margin-bottom: 10px; }
.cycle li::before { content: ""; position: absolute; top: -5px; left: 0; width: 9px; height: 9px; border-radius: 50%; background: var(--accent); }

/* IA */
.ia { position: relative; overflow: hidden; }
.ia::after {
  content: ""; position: absolute; top: -30%; left: -15%; width: 60vw; height: 60vw; max-width: 760px; max-height: 760px;
  background: radial-gradient(closest-side, rgba(123,143,240,.18), rgba(123,143,240,0)); pointer-events: none;
}
.ia .wrap { position: relative; z-index: 1; }

/* Clientes */
.logos { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 220px), 1fr)); gap: 12px; }
.logos a { display: grid; place-items: center; height: 112px; padding: 20px 24px; background: var(--card-light); border-radius: var(--radius); transition: background-color .2s; }
.logos a:hover { background: #efefeb; }
.logos img { max-height: 56px; max-width: 100%; width: auto; object-fit: contain; transition: transform .2s; }
.logos img[src$=".svg"] { max-height: 36px; }
.logos a:hover img { transform: scale(1.04); }

.stats { margin-top: 64px; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 32px; border-top: 2px solid var(--black); padding-top: 32px; }
.stats strong { display: block; font: 900 clamp(40px, 4.4vw, 56px)/1 var(--font-display); letter-spacing: -0.04em; }
.stats span { display: block; margin-top: 10px; color: var(--gray); }

/* Fundador */
.founder__inner { display: grid; gap: 40px; }
@media (min-width: 900px) { .founder__inner { grid-template-columns: 1.2fr 1fr; gap: 80px; align-items: end; } }
.founder__name { font: 800 26px/1.2 var(--font-display); }
.founder__role { color: var(--accent); font-weight: 600; margin: 6px 0 20px; }

/* Formulário */
.qform { background: var(--card-light); border-radius: 20px; padding: clamp(24px, 4vw, 48px); max-width: 860px; }
.qform__steps { list-style: none; display: flex; gap: 6px; margin: 0 0 36px; padding: 0; counter-reset: s; }
.qform__steps li { flex: 1; font: 600 12px/1 var(--font-body); letter-spacing: .08em; text-transform: uppercase; color: var(--gray); padding-top: 12px; border-top: 3px solid var(--line-light); counter-increment: s; }
.qform__steps li::before { content: "0" counter(s) " "; }
.qform__steps li.is-active, .qform__steps li.is-done { color: var(--black); border-top-color: var(--accent); }
@media (max-width: 640px) { .qform__steps li { font-size: 0; } .qform__steps li::before { font-size: 12px; } }

.qform fieldset { border: 0; margin: 0; padding: 0; display: grid; gap: 22px; }
.qform legend { font: 800 28px/1.1 var(--font-display); letter-spacing: -0.02em; margin-bottom: 22px; padding: 0; }
.qform label { display: grid; gap: 8px; font-weight: 600; font-size: 15px; }
.qform input, .qform select, .qform textarea {
  width: 100%; min-height: 52px; padding: 14px 16px; border: 1px solid #d9d9d4; border-radius: 10px; background: var(--white);
  font: 400 16px/1.4 var(--font-body); color: var(--black); appearance: none; -webkit-appearance: none;
}
.qform select { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23000' stroke-width='1.6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 16px center; padding-right: 44px; cursor: pointer; }
.qform textarea { resize: vertical; min-height: 104px; }
.qform input:focus, .qform select:focus, .qform textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(123,143,240,.25); }
.qform .is-invalid { border-color: #c2410c; }
.qform__grid { display: grid; gap: 22px; }
@media (min-width: 640px) { .qform__grid { grid-template-columns: 1fr 1fr; } }
.qform__nav { margin-top: 36px; display: flex; gap: 12px; flex-wrap: wrap; justify-content: flex-end; }
.qform__captcha { margin-top: 4px; min-height: 65px; }
.qform__error { margin-top: 20px; color: #c2410c; font-weight: 600; }
.qform__success { background: var(--black); color: var(--white); border-radius: 20px; padding: clamp(32px, 5vw, 56px); max-width: 860px; }
.qform__success .muted { margin-top: 12px; }

/* Passo a passo só com JS; sem JS todas as etapas aparecem */
.js .qform__step { display: none; }
.js .qform__step.is-active { display: grid; }
html:not(.js) .qform__steps, html:not(.js) [data-next], html:not(.js) [data-prev] { display: none; }
html:not(.js) .qform__step + .qform__step { margin-top: 48px; }

/* Páginas de serviço */
.hero--page { padding-bottom: clamp(64px, 9vw, 112px); }
.hero__title--page { font-size: clamp(38px, min(5.6vw, 9vh), 76px); max-width: 20ch; }
.crumbs { font-size: 14px; color: var(--gray-dark); margin-bottom: 28px; display: flex; gap: 8px; flex-wrap: wrap; }
.crumbs a { color: var(--gray-dark); }
.crumbs a:hover { color: var(--white); }
.section--tight { padding: clamp(56px, 8vw, 96px) 0; }
.tint { background: var(--card-light); color: var(--black); }
.h2--sub { font-size: clamp(28px, 3.6vw, 44px); margin-bottom: 28px; max-width: 22ch; }
.prose { max-width: 820px; margin-left: auto; margin-right: auto; }
.prose > * + * { margin-top: 18px; }
.prose p, .prose li { font-size: 18px; color: #2b2b2b; }
.prose a { color: inherit; text-decoration-color: var(--accent); text-decoration-thickness: 2px; text-underline-offset: 3px; }
.ticks { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.ticks li { position: relative; padding-left: 26px; }
.ticks li::before { content: "✦"; color: var(--accent); position: absolute; left: 0; top: 0; }
.compare { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); }
.compare > div { background: var(--white); border: 1px solid var(--line-light); border-radius: var(--radius); padding: 24px; }
.light .compare > div { background: var(--card-light); border: 0; }
.compare h3 { font-size: 24px; margin-bottom: 14px; }
.compare li { font-size: 16px; }
.cycle--steps li { padding-right: 24px; font-weight: 400; color: var(--gray-dark); }
.cycle--steps li strong { display: block; color: var(--white); font-size: 18px; margin-bottom: 6px; }
.faq__list--light { border-top-color: var(--line-light); }
.faq__list--light .faq__item { border-bottom-color: var(--line-light); }
.faq__list--light .faq__item p { color: #3d3d3d; }
.cta-band .muted { margin: 20px 0 32px; max-width: 56ch; }
.cta-band .hero__ctas { margin-top: 0; }
.footer__links { display: flex; flex-wrap: wrap; gap: 8px 20px; }

/* Perguntas frequentes */
.faq__list { display: grid; border-top: 1px solid var(--line-dark); max-width: 980px; }
.faq__item { border-bottom: 1px solid var(--line-dark); }
.faq__item summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 26px 0; }
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after { content: "+"; flex: none; font: 500 28px/1 var(--font-body); color: var(--accent); transition: transform .2s; }
.faq__item[open] summary::after { transform: rotate(45deg); }
.faq__item h3 { font-size: clamp(19px, 2vw, 24px); }
.faq__item p { color: var(--gray-dark); max-width: 70ch; padding-bottom: 28px; margin-top: -6px; }

/* Rodapé */
.footer { padding: 56px 0; border-top: 1px solid var(--line-dark); }
.footer__inner { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 40px; color: var(--gray-dark); font-size: 15px; }
.footer__inner img { width: 112px; }
.footer__inner a { color: var(--white); text-decoration: none; }
.footer__inner a:hover { color: var(--accent); }
.footer__copy { margin-left: auto; }
@media (max-width: 520px) { .logos { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .footer__copy { margin-left: 0; } }

/* Revelação ao rolar */
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.js .reveal.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .ticker__track { animation: none; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  .btn { transition: none; }
}