/* ==========================================================================
   ZARKIO — componentes e layout (usa tokens.css)
   ========================================================================== */

/* ---- Base ---------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: var(--fw-bold);
  line-height: var(--lh-heading);
  color: var(--color-heading);
  margin: 0;
}
p { margin: 0; }
:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 3px; }
section[id] { scroll-margin-top: 76px; } /* compensa o header fixo nas âncoras */

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 1000;
  background: var(--zk-black); color: #fff; padding: var(--space-3) var(--space-4);
}
.skip-link:focus { left: var(--space-4); top: var(--space-4); }

.container { width: min(100% - 2 * var(--gutter), var(--container)); margin-inline: auto; }
.container--narrow { width: min(100% - 2 * var(--gutter), var(--container-narrow)); margin-inline: auto; }
.section { padding-block: var(--section-y); }
.section--dark { background: var(--grad-brand); color: var(--color-on-dark); }
.section--dark h2, .section--dark h3 { color: var(--color-on-dark); }
.text-center { text-align: center; }

/* ---- Tipografia utilitária ---------------------------------------------- */
.overline {
  display: block;
  font-family: var(--font-heading);
  font-weight: var(--fw-light);
  font-size: var(--fs-overline);
  margin-bottom: var(--space-2);
}
.section--dark .overline { color: var(--color-on-dark-muted); }
.h-section { font-size: var(--fs-h2); }
.lead { font-size: var(--fs-lead); }
.section-intro { max-width: 640px; margin: var(--space-4) auto 0; }

/* ---- Botões -------------------------------------------------------------- */
.btn {
  --_bg: var(--grad-brand);
  --_fg: #fff;
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  min-height: 48px;
  padding: 0.75rem 2rem;
  border: 0; border-radius: var(--radius-md);
  background: var(--_bg); color: var(--_fg);
  font-family: var(--font-body); font-size: 1rem; font-weight: var(--fw-medium);
  text-decoration: none; cursor: pointer;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), filter var(--dur);
}
.btn:hover { transform: translateY(-2px) scale(1.02); box-shadow: var(--shadow-md); }
.btn:active { transform: translateY(0) scale(0.99); }
.btn--light { --_bg: var(--grad-button-light); --_fg: var(--zk-black); font-weight: var(--fw-bold); }
.btn--solid { --_bg: var(--zk-teal-950); }
.btn[disabled] { opacity: 0.6; cursor: wait; transform: none; }

/* ---- Header -------------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: linear-gradient(180deg, var(--zk-teal-950) 0%, #00191c 100%);
  transition: box-shadow var(--dur);
}
.site-header.is-scrolled { box-shadow: 0 6px 24px rgba(0, 0, 0, 0.35); }
.site-header__inner {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 76px;
}
.site-header__logo img { height: 36px; width: auto; }
.nav { display: flex; gap: var(--space-2); }
.nav a {
  position: relative;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-heading); font-weight: var(--fw-medium);
  color: #fff; text-decoration: none;
}
.nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 3px;
  background: var(--zk-teal); transform: scaleX(0); transform-origin: center;
  transition: transform var(--dur) var(--ease);
}
.nav a:hover::after, .nav a.is-active::after { transform: scaleX(1); }
.nav-toggle {
  display: none;
  width: 44px; height: 44px; border: 0; background: transparent; color: #fff; cursor: pointer;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  display: block; width: 24px; height: 2px; background: currentColor; margin: auto;
  position: relative; transition: transform var(--dur) var(--ease), background var(--dur);
}
.nav-toggle span::before, .nav-toggle span::after { content: ""; position: absolute; left: 0; }
.nav-toggle span::before { top: -7px; }
.nav-toggle span::after { top: 7px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 720px) {
  .nav-toggle { display: block; }
  .nav {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; gap: 0;
    background: var(--zk-teal-950);
    padding: var(--space-2) var(--gutter) var(--space-4);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.3);
    display: none;
  }
  .nav.is-open { display: flex; }
  .nav a { padding: var(--space-4) 0; border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
  .nav a::after { display: none; }
}

/* ---- Hero ---------------------------------------------------------------- */
.hero {
  --hero-shade: 0.35;      /* escurecimento geral do vídeo (0 a 1) */
  --hero-shade-text: 0.6;  /* escurecimento atrás do texto          */
  position: relative; isolation: isolate; overflow: hidden;
  min-height: clamp(420px, 62vh, 620px);
  display: flex; align-items: center;
  background: var(--grad-hero);
  color: #fff;
}
.hero__stars { position: absolute; inset: 0; z-index: -2; width: 100%; height: 100%; }
/* Vídeo de fundo (YouTube) — cobre o hero como background-size: cover */
.hero__video {
  position: absolute; inset: 0; z-index: -1; overflow: hidden; pointer-events: none;
  opacity: 0; transition: opacity 1.2s var(--ease);
}
.hero__video.is-playing { opacity: 1; }
.hero__video.is-hiding { transition-duration: 0.12s; } /* some rápido em pausas/buffer */
/* Película escura sobre o vídeo: mais densa do lado do texto, para dar leitura */
.hero__video::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background:
    linear-gradient(90deg, rgba(0, 0, 0, var(--hero-shade-text)) 0%, rgba(0, 0, 0, var(--hero-shade)) 60%),
    rgba(0, 0, 0, 0.1);
}
.hero__video iframe, .hero__video > div {
  position: absolute; top: 50%; left: 50%;
  width: max(100%, 177.78vh); height: max(100%, 56.25vw);
  min-width: 100%; min-height: 100%;
  transform: translate(-50%, -50%) scale(1.35); /* empurra título e cantos do player para fora da tela */
  border: 0;
}
.hero h1 {
  color: #fff;
  font-size: var(--fs-display);
  font-weight: var(--fw-light);
  line-height: var(--lh-tight);
  max-width: 20ch;
}
.hero h1 strong {
  position: relative; display: inline-block;
  font-weight: var(--fw-bold);
  margin-top: 0.15em;
  white-space: nowrap;
}
.brush {
  position: absolute; left: -2%; bottom: -0.35em; width: 104%; height: 0.45em;
  overflow: visible; pointer-events: none;
}
.brush path {
  fill: none; stroke: var(--zk-teal); stroke-width: 9; stroke-linecap: round;
  stroke-dasharray: 1; stroke-dashoffset: 1;
  animation: brush-loop 5s ease-in-out 0.4s infinite;
}
.brush path + path { stroke-width: 6; animation-name: brush-loop-2; }
/* desenha (~1,1s) → segura (~2,4s) → apaga (~0,6s) → pausa → repete */
@keyframes brush-loop {
  0%   { stroke-dashoffset: 1;  opacity: 1; }
  22%  { stroke-dashoffset: 0;  opacity: 1; }
  70%  { stroke-dashoffset: 0;  opacity: 1; }
  82%  { stroke-dashoffset: 0;  opacity: 0; }
  100% { stroke-dashoffset: 1;  opacity: 0; }
}
@keyframes brush-loop-2 {
  0%, 8% { stroke-dashoffset: 1; opacity: 1; }
  28%  { stroke-dashoffset: 0;  opacity: 1; }
  70%  { stroke-dashoffset: 0;  opacity: 1; }
  82%  { stroke-dashoffset: 0;  opacity: 0; }
  100% { stroke-dashoffset: 1;  opacity: 0; }
}
@media (max-width: 520px) { .hero h1 strong { white-space: normal; } }

/* ---- Sobre / parceiro ---------------------------------------------------- */
.about { background: var(--zk-white); }
.about__grid {
  display: grid; gap: var(--space-6);
  grid-template-columns: 1.1fr 0.9fr 0.95fr; align-items: center;
}
.about__copy h2 { font-size: var(--fs-h2); margin-bottom: var(--space-4); }
.about__copy p { margin-bottom: var(--space-6); color: var(--color-text); }
.about__copy .overline { color: var(--color-text-muted); }
.feature-stack { display: grid; gap: var(--space-4); }
.feature-card {
  background: var(--grad-card-light);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-4);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform var(--dur) var(--ease);
}
.feature-card:hover { transform: translateY(-3px); }
.feature-card .icon { font-size: 1.6rem; color: var(--zk-teal-950); margin-bottom: var(--space-2); }
.feature-card h3 { font-size: var(--fs-h4); margin-bottom: var(--space-1); }
.feature-card p { font-family: var(--font-heading); color: var(--color-text); font-size: 0.95rem; }
.about__photo img {
  width: 100%; aspect-ratio: 2 / 3; object-fit: cover;
  border-radius: var(--radius-lg); box-shadow: var(--shadow-lg);
}
@media (max-width: 960px) {
  .about__grid { grid-template-columns: 1fr 1fr; }
  .about__copy { grid-column: 1 / -1; }
}
@media (max-width: 600px) {
  .about__grid { grid-template-columns: 1fr; }
  .about__photo { max-width: 360px; margin-inline: auto; }
}

/* ---- Serviços ------------------------------------------------------------ */
.services__grid {
  display: grid; gap: var(--space-6);
  grid-template-columns: repeat(3, 1fr);
  margin-top: var(--space-8);
}
.service-card {
  background: rgba(0, 37, 41, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-md);
  padding: var(--space-7) var(--space-6);
  text-align: center;
  transition: transform var(--dur) var(--ease), background var(--dur);
}
.service-card:hover { transform: translateY(-4px); background: rgba(0, 37, 41, 0.65); }
.service-card .icon { font-size: 2rem; margin-bottom: var(--space-4); color: #fff; }
.service-card h3 { font-size: 1.35rem; margin-bottom: var(--space-4); }
.service-card p { color: var(--color-on-dark-muted); font-size: 0.95rem; }
.services__cta { margin-top: var(--space-7); text-align: center; }
@media (max-width: 900px) { .services__grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-4); } }
@media (max-width: 560px) { .services__grid { grid-template-columns: 1fr; } }

/* ---- Marquee ------------------------------------------------------------- */
.marquee {
  background: var(--zk-black); color: #fff; overflow: hidden;
  padding-block: var(--space-5);
}
.marquee__track {
  display: flex; width: max-content;
  animation: marquee 40s linear infinite;
}
.marquee__track span {
  font-family: var(--font-heading); font-weight: var(--fw-bold);
  font-size: clamp(1.1rem, 0.9rem + 0.8vw, 1.6rem);
  text-transform: uppercase; letter-spacing: 0.02em; white-space: nowrap;
  padding-right: var(--space-6);
}
.marquee__track span::after { content: "."; margin-left: var(--space-6); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---- Equipe -------------------------------------------------------------- */
.team__grid {
  display: grid; gap: var(--space-8);
  grid-template-columns: 1.15fr 0.85fr; align-items: center;
}
.team__copy h2 { font-size: var(--fs-h2); margin-bottom: var(--space-5); }
.team__copy p + p { margin-top: var(--space-5); }
.team__people { display: grid; gap: var(--space-9); justify-items: center; }
.person { position: relative; width: min(100%, 330px); }
.person img {
  width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: var(--radius-xl);
}
.person figcaption {
  position: absolute; left: 50%; bottom: -24px; transform: translateX(-50%);
  width: 78%;
  background: #fff; border-radius: var(--radius-md); box-shadow: var(--shadow-md);
  padding: var(--space-3) var(--space-4); text-align: center;
}
.person figcaption strong {
  display: block; font-family: var(--font-heading); font-size: 1rem; color: var(--zk-teal-950);
}
.person figcaption span {
  font-family: var(--font-heading); font-size: 0.8rem; font-weight: var(--fw-medium);
  color: var(--color-text-muted);
}
.person figcaption i { margin-right: 4px; color: var(--zk-teal); }
@media (max-width: 860px) {
  .team__grid { grid-template-columns: 1fr; gap: var(--space-8); }
  .team__people { grid-template-columns: repeat(2, 1fr); gap: var(--space-5); }
}
@media (max-width: 520px) { .team__people { grid-template-columns: 1fr; gap: var(--space-8); } }

/* ---- Parceria (statement) ------------------------------------------------ */
.statement h2 {
  font-size: clamp(1.6rem, 1.1rem + 2vw, 2.4rem);
  max-width: 24ch; margin: 0 auto var(--space-7);
}

/* ---- Formulário ---------------------------------------------------------- */
.contact__grid {
  display: grid; gap: var(--space-8);
  grid-template-columns: 0.8fr 1.6fr; align-items: start;
}
.contact__intro { position: sticky; top: 110px; }
.contact__intro img { height: 34px; width: auto; margin-bottom: var(--space-3); }
.contact__intro h2 { font-size: var(--fs-h2); line-height: var(--lh-tight); margin-bottom: var(--space-4); }
.contact__intro p { color: var(--color-text-muted); }
@media (max-width: 860px) {
  .contact__grid { grid-template-columns: 1fr; gap: var(--space-6); }
  .contact__intro { position: static; }
}

.form { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4) var(--space-4); }
.field { display: grid; gap: var(--space-2); grid-column: 1 / -1; }
.field--half { grid-column: span 1; }
@media (max-width: 560px) { .field--half { grid-column: 1 / -1; } }
.field label, .field legend {
  font-family: var(--font-heading); font-weight: var(--fw-medium); font-size: 0.95rem;
  color: var(--zk-black); padding: 0;
}
.req { color: var(--color-error); margin-left: 2px; }
.input, .select {
  width: 100%; min-height: 46px;
  padding: 0.6rem 0.9rem;
  font: inherit; font-family: var(--font-heading); color: var(--zk-black);
  background: #fff;
  border: 1px solid var(--color-border); border-radius: 0;
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast);
}
.input::placeholder { color: var(--zk-gray-500); }
.input:focus, .select:focus { outline: none; border-color: var(--zk-teal); box-shadow: 0 0 0 3px rgba(0, 112, 125, 0.2); }
.select {
  appearance: none; -webkit-appearance: none; cursor: pointer; padding-right: 2.5rem;
  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='M0 0h12L6 8z' fill='%231d1d1d'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 0.9rem center;
}
.field.is-invalid .input, .field.is-invalid .select { border-color: var(--color-error); }
.field__error { color: var(--color-error); font-size: var(--fs-small); display: none; }
.field.is-invalid .field__error { display: block; }

fieldset.field { border: 0; margin: 0; padding: 0; min-width: 0; }
.chips { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-top: var(--space-1); }
.chip { position: relative; }
.chip input { position: absolute; opacity: 0; inset: 0; cursor: pointer; margin: 0; }
.chip span {
  display: inline-flex; align-items: center; min-height: 40px;
  padding: 0.4rem 1rem;
  font-family: var(--font-heading); font-size: 0.95rem; color: var(--zk-black);
  border: 1px solid var(--color-border); border-radius: var(--radius-pill);
  background: #fff; cursor: pointer; user-select: none;
  transition: background var(--dur-fast), color var(--dur-fast), border-color var(--dur-fast);
}
.chip:hover span { border-color: var(--zk-teal); }
.chip input:checked + span { background: var(--zk-teal-950); border-color: var(--zk-teal-950); color: #fff; }
.chip input:focus-visible + span { outline: 2px solid var(--color-focus); outline-offset: 2px; }

.form__actions { grid-column: 1 / -1; display: flex; justify-content: center; margin-top: var(--space-2); }
.form__actions .btn { min-width: 160px; border-radius: var(--radius-md); }
.form__status { grid-column: 1 / -1; text-align: center; font-size: var(--fs-small); min-height: 1.2em; }
.form__status.is-error { color: var(--color-error); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.form-success {
  display: none; text-align: center; padding: var(--space-7) var(--space-5);
  background: var(--grad-card-light); border-radius: var(--radius-lg);
}
.form-success.is-visible { display: block; }
.form-success .icon { font-size: 2.5rem; color: var(--zk-teal); margin-bottom: var(--space-3); }
.form-success h3 { font-size: var(--fs-h3); margin-bottom: var(--space-3); }
.form-success p { margin-bottom: var(--space-5); }

/* ---- FAQ ----------------------------------------------------------------- */
.faq h2 { font-size: var(--fs-h2); margin-bottom: var(--space-5); }
.faq__list { display: grid; gap: var(--space-2); }
.faq details {
  background: #fff; border: 1px solid var(--color-border-soft);
}
.faq summary {
  list-style: none; cursor: pointer;
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-heading); font-weight: var(--fw-semibold); color: var(--zk-black);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary .icon { color: var(--zk-black); transition: transform var(--dur) var(--ease); }
.faq details[open] summary { color: var(--zk-teal); border-bottom: 1px solid var(--color-border-soft); }
.faq details[open] summary .icon { color: var(--zk-teal); transform: rotate(180deg); }
.faq__answer { padding: var(--space-4) var(--space-4) var(--space-4) calc(var(--space-4) + 1.75rem); font-family: var(--font-heading); }
.faq__answer p + p { margin-top: var(--space-3); }

/* ---- Footer -------------------------------------------------------------- */
.site-footer { background: var(--zk-black); color: #fff; padding-block: var(--space-7); }
.site-footer__inner { display: flex; justify-content: space-between; align-items: flex-end; gap: var(--space-5); flex-wrap: wrap; }
.site-footer img { height: 34px; width: auto; margin-bottom: var(--space-4); }
.site-footer small { display: block; color: rgba(255, 255, 255, 0.75); font-family: var(--font-heading); font-weight: var(--fw-light); }
.site-footer small a { text-decoration: none; }
.site-footer small a:hover { text-decoration: underline; }
.social { text-align: right; }
.social p { font-family: var(--font-heading); font-weight: var(--fw-light); color: rgba(255,255,255,0.75); margin-bottom: var(--space-2); }
.social a {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; font-size: 1.3rem; color: #fff; text-decoration: none;
  transition: color var(--dur-fast), transform var(--dur-fast);
}
.social a:hover { color: var(--zk-teal-200); transform: translateY(-2px); }

/* ---- WhatsApp flutuante -------------------------------------------------- */
.wa-float {
  position: fixed; right: 20px; bottom: 20px; z-index: 60;
  width: 60px; height: 60px; border-radius: 50%;
  display: grid; place-items: center;
  background: #25d366; color: #fff; font-size: 2rem; text-decoration: none;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  transition: transform var(--dur) var(--ease);
}
.wa-float:hover { transform: scale(1.08); }

/* ---- Reveal on scroll ---------------------------------------------------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
  .brush path { stroke-dashoffset: 0; opacity: 1; animation: none !important; }
}