/* =========================================================================
   Analyticus — Design System
   Paleta extraída da proposta comercial:
   navy #1a2f4a · green #7fb069 · steel #8bb8c9
   ========================================================================= */

:root {
  /* Cores da marca */
  --navy: #1a2f4a;
  --navy-900: #142438;
  --navy-700: #24405f;
  --green: #7fb069;
  --green-600: #6ba055;
  --steel: #8bb8c9;
  --steel-100: #eaf1f4;

  /* Neutros */
  --ink: #16202b;
  --text: #333333;
  --muted: #6b7683;
  --line: #e4e8ec;
  --surface: #ffffff;
  --surface-2: #f6f8f9;
  --surface-3: #eef2f4;

  /* Superfície dos cards — um pouco mais escura que o branco, para dar presença */
  --card-grad: linear-gradient(180deg, #f1f4f7 0%, #e6ebf1 100%);
  --card-grad-strong: linear-gradient(180deg, #ebeff4 0%, #dfe6ee 100%);
  --card-border: #d5dde6;

  /* Tipografia */
  --font-sans: "Helvetica Neue", Helvetica, Arial, "Segoe UI", Roboto, system-ui, sans-serif;
  --text-hero: clamp(2.3rem, 1.2rem + 4.6vw, 4.6rem);
  --text-h2: clamp(1.75rem, 1.1rem + 2.4vw, 2.75rem);
  --text-h3: clamp(1.15rem, 1rem + 0.6vw, 1.4rem);
  --text-lead: clamp(1.05rem, 0.98rem + 0.5vw, 1.3rem);

  /* Espaço / forma */
  --container: 1180px;
  --space-section: clamp(4.5rem, 3rem + 6vw, 8rem);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 2px rgba(16, 32, 48, 0.06), 0 4px 16px rgba(16, 32, 48, 0.05);
  --shadow-md: 0 8px 30px rgba(16, 32, 48, 0.10);
  --shadow-lg: 0 24px 60px rgba(16, 32, 48, 0.16);

  --dur: 300ms;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset ------------------------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--surface);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { color: var(--ink); line-height: 1.12; letter-spacing: -0.02em; margin: 0; }
p { margin: 0; }
ul { list-style: none; margin: 0; padding: 0; }
button { font-family: inherit; cursor: pointer; }
:focus-visible { outline: 3px solid var(--green); outline-offset: 2px; border-radius: 4px; }

.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: clamp(1.1rem, 0.6rem + 2vw, 2.2rem); }

/* Eyebrow / títulos ------------------------------------------------------ */
.eyebrow {
  display: inline-flex; align-items: center; gap: 0.55rem;
  font-size: 0.78rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--green-600); margin: 0 0 1rem;
}
.eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--green); border-radius: 2px; }
.eyebrow--light { color: var(--steel); }
.eyebrow--light::before { background: var(--steel); }

.section { padding-block: var(--space-section); }
.section--muted { background: var(--surface-2); }
.section--navy { background: var(--navy); color: rgba(255,255,255,0.86); }
.section__head { max-width: 720px; margin-bottom: clamp(2.2rem, 1.5rem + 2vw, 3.4rem); }
.section__head--light .section__title { color: #fff; }
.section__title { font-size: var(--text-h2); font-weight: 800; }
.section--navy .section__title { color: #fff; }
.section__subtitle { margin-top: 1rem; font-size: var(--text-lead); color: var(--muted); }
.section--navy .section__subtitle { color: rgba(255,255,255,0.7); }

/* Botões ----------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  font-weight: 700; font-size: 0.98rem; letter-spacing: 0.01em;
  padding: 0.85rem 1.5rem; border-radius: 999px; border: 1.5px solid transparent;
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
  will-change: transform;
}
.btn--sm { padding: 0.55rem 1.1rem; font-size: 0.9rem; }
.btn--lg { padding: 1rem 1.9rem; font-size: 1.02rem; }
.btn--block { width: 100%; }
.btn--primary { background: var(--navy); color: #fff; box-shadow: var(--shadow-sm); }
.btn--primary:hover { background: var(--navy-700); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn--green { background: var(--green); color: #10240a; box-shadow: 0 6px 20px rgba(127,176,105,0.35); }
.btn--green:hover { background: var(--green-600); transform: translateY(-2px); }
.btn--ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,0.4); }
.btn--ghost:hover { background: rgba(255,255,255,0.1); border-color: #fff; transform: translateY(-2px); }

/* Header ----------------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.82);
  backdrop-filter: saturate(150%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.site-header.is-scrolled { box-shadow: var(--shadow-sm); border-color: var(--line); }
.site-header__inner { display: flex; align-items: center; gap: 1.5rem; height: 74px; }

.brand { display: inline-flex; align-items: center; gap: 0.7rem; }
.brand__mark { flex: none; transition: transform var(--dur) var(--ease); }
.brand:hover .brand__mark { transform: rotate(-6deg) scale(1.05); }
.brand__text { display: flex; flex-direction: column; line-height: 1; }
.brand__name { font-size: 1.32rem; font-weight: 800; color: var(--navy); letter-spacing: -0.03em; }
.brand__tag { font-size: 0.6rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); margin-top: 3px; }

.nav { display: flex; gap: 0.35rem; margin-left: auto; }
.nav__link {
  position: relative; padding: 0.5rem 0.85rem; font-size: 0.95rem; font-weight: 600; color: var(--ink);
  border-radius: 8px; transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.nav__link::after {
  content: ""; position: absolute; left: 0.85rem; right: 0.85rem; bottom: 0.3rem; height: 2px;
  background: var(--green); border-radius: 2px; transform: scaleX(0); transform-origin: left;
  transition: transform var(--dur) var(--ease);
}
.nav__link:hover { color: var(--navy); }
.nav__link:hover::after { transform: scaleX(1); }
.nav__cta { flex: none; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; padding: 8px; margin-left: auto; }
.nav-toggle span { width: 24px; height: 2px; background: var(--navy); border-radius: 2px; transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease); }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav {
  display: none; flex-direction: column; gap: 0.25rem; padding: 0.5rem 1.2rem 1.4rem;
  background: #fff; border-bottom: 1px solid var(--line);
}
.mobile-nav.is-open { display: flex; }
.mobile-nav__link { padding: 0.8rem 0.4rem; font-weight: 600; border-bottom: 1px solid var(--line); }
.mobile-nav .btn { margin-top: 0.8rem; }

/* Hero ------------------------------------------------------------------- */
.hero { position: relative; overflow: hidden; background: var(--navy); color: #fff; isolation: isolate; }
.hero__grid-bg {
  position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(1000px 500px at 78% -10%, rgba(139,184,201,0.28), transparent 60%),
    radial-gradient(760px 420px at 5% 110%, rgba(127,176,105,0.22), transparent 55%),
    linear-gradient(180deg, var(--navy-900), var(--navy));
}
.hero__grid-bg::after {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(circle at 70% 30%, #000 0%, transparent 72%);
  -webkit-mask-image: radial-gradient(circle at 70% 30%, #000 0%, transparent 72%);
}
.hero__inner { padding-block: clamp(4rem, 3rem + 8vw, 8.5rem); max-width: 900px; }
.hero__title { font-size: var(--text-hero); font-weight: 800; color: #fff; letter-spacing: -0.03em; }
.hero__subtitle { margin-top: 1.6rem; font-size: var(--text-lead); color: rgba(255,255,255,0.78); max-width: 660px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-top: 2.4rem; }
.hero__highlights { display: flex; flex-wrap: wrap; gap: 1.4rem 2rem; margin-top: 3rem; padding-top: 2rem; border-top: 1px solid rgba(255,255,255,0.14); }
.hero__highlights li { display: flex; align-items: center; gap: 0.6rem; font-size: 0.96rem; color: rgba(255,255,255,0.82); font-weight: 600; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 4px rgba(127,176,105,0.2); }

/* Faixa de clientes ------------------------------------------------------ */
.clients-strip { padding-block: 2.4rem; border-bottom: 1px solid var(--line); background: var(--surface); }
.clients-strip__label { text-align: center; font-size: 0.82rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); margin-bottom: 1.4rem; font-weight: 600; }
.clients-strip__logos { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 1.4rem 2.8rem; }
.client-logo { display: flex; align-items: center; opacity: 0.7; transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease); }
.client-logo img { height: 30px; width: auto; }
.client-logo:hover { opacity: 1; transform: translateY(-2px); }

/* Serviços --------------------------------------------------------------- */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.3rem; }
.service-card {
  position: relative; background: var(--card-grad); border: 1px solid var(--card-border); border-radius: var(--radius);
  padding: 1.9rem 1.7rem; box-shadow: var(--shadow-sm); overflow: hidden;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.service-card::before {
  content: ""; position: absolute; left: 0; top: 0; height: 3px; width: 100%;
  background: linear-gradient(90deg, var(--green), var(--steel)); transform: scaleX(0); transform-origin: left;
  transition: transform var(--dur) var(--ease);
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.service-card:hover::before { transform: scaleX(1); }
.service-card__icon {
  display: inline-flex; width: 52px; height: 52px; align-items: center; justify-content: center;
  border-radius: 14px; background: #ffffff; color: var(--navy); margin-bottom: 1.3rem;
  box-shadow: 0 1px 3px rgba(16,32,48,0.08);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.service-card__icon svg { width: 26px; height: 26px; }
.service-card:hover .service-card__icon { background: var(--navy); color: #fff; transform: scale(1.05) rotate(-3deg); }
.service-card__title { font-size: var(--text-h3); font-weight: 700; margin-bottom: 0.6rem; }
.service-card__desc { color: var(--muted); font-size: 0.98rem; }
.tag-list { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-top: 1.2rem; }
.tag { font-size: 0.76rem; font-weight: 600; color: var(--navy-700); background: #ffffff; border: 1px solid var(--card-border); padding: 0.3rem 0.7rem; border-radius: 999px; }

/* Stats ------------------------------------------------------------------ */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.4rem; }
.stat { padding: 1.8rem 1.6rem; border-radius: var(--radius); background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.1); }
.stat__value { display: flex; align-items: baseline; gap: 2px; font-size: clamp(2.6rem, 1.8rem + 3vw, 3.6rem); font-weight: 800; color: #fff; letter-spacing: -0.03em; line-height: 1; }
.stat__suffix { color: var(--green); font-size: 0.6em; }
.stat__label { margin-top: 0.9rem; font-size: 0.94rem; color: rgba(255,255,255,0.68); }

/* Cases ------------------------------------------------------------------ */
.cases-list { display: grid; gap: 1.3rem; }
.case-card {
  display: grid; grid-template-columns: 300px 1fr; gap: 1.5rem 2.5rem; align-items: start;
  background: var(--card-grad); border: 1px solid var(--card-border); border-left: 4px solid var(--green);
  border-radius: var(--radius); padding: 2rem 2.1rem; box-shadow: var(--shadow-sm);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.case-card:hover { transform: translateX(4px); box-shadow: var(--shadow-md); }
.case-card__sector { display: inline-block; font-size: 0.76rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--green-600); margin-bottom: 0.7rem; }
.case-card__title { font-size: var(--text-h3); font-weight: 700; }
.case-card__desc { color: var(--muted); font-size: 0.98rem; }
.metric-list { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.3rem; }
.metric { font-size: 0.82rem; font-weight: 700; color: var(--navy); background: var(--steel-100); padding: 0.4rem 0.85rem; border-radius: 8px; }

/* Parede de clientes ----------------------------------------------------- */
.clients-wall { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem; margin-bottom: 1.6rem; }
.clients-wall__item {
  display: flex; align-items: center; justify-content: center; min-height: 118px; padding: 1.5rem;
  background: var(--card-grad-strong); border: 1px solid var(--card-border); border-radius: var(--radius);
  box-shadow: var(--shadow-sm); transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.clients-wall__item img { max-height: 48px; max-width: 78%; width: auto; }
.clients-wall__item:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.clients-wall__note { color: var(--muted); font-size: 0.95rem; }

/* Sobre ------------------------------------------------------------------ */
.about { display: grid; grid-template-columns: 1.5fr 1fr; gap: clamp(2rem, 1rem + 4vw, 4.5rem); align-items: start; }
.about__paragraph { margin-top: 1.2rem; color: var(--text); font-size: 1.04rem; }
.about__pillars { display: grid; gap: 1rem; position: sticky; top: 100px; }
.pillar { padding: 1.4rem 1.5rem; background: var(--card-grad); border: 1px solid var(--card-border); border-radius: var(--radius-sm); border-left: 3px solid var(--steel); }
.pillar__title { font-size: 1.08rem; font-weight: 700; margin-bottom: 0.3rem; }
.pillar__desc { color: var(--muted); font-size: 0.95rem; }

/* Contato ---------------------------------------------------------------- */
.contact { display: grid; grid-template-columns: 1fr 1.15fr; gap: clamp(2rem, 1rem + 4vw, 4rem); align-items: start; }
.contact__subtitle { margin-top: 1rem; font-size: var(--text-lead); color: rgba(255,255,255,0.75); }
.contact__details { margin-top: 2.2rem; display: grid; gap: 1.1rem; }
.contact__details li { display: flex; flex-direction: column; gap: 2px; padding-bottom: 1.1rem; border-bottom: 1px solid rgba(255,255,255,0.12); }
.contact__label { font-size: 0.76rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--steel); }
.contact__details a { color: #fff; font-weight: 600; transition: color var(--dur) var(--ease); }
.contact__details a:hover { color: var(--green); }

.contact-form { background: #fff; border-radius: var(--radius); padding: clamp(1.6rem, 1rem + 2vw, 2.4rem); box-shadow: var(--shadow-lg); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.field { display: flex; flex-direction: column; gap: 0.4rem; margin-bottom: 1rem; }
.field__label { font-size: 0.85rem; font-weight: 600; color: var(--ink); }
.field input, .field select, .field textarea {
  font-family: inherit; font-size: 0.98rem; color: var(--ink);
  padding: 0.75rem 0.9rem; border: 1.5px solid var(--line); border-radius: var(--radius-sm);
  background: var(--surface-2); transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--green); background: #fff; box-shadow: 0 0 0 3px rgba(127,176,105,0.18);
}
.field textarea { resize: vertical; min-height: 120px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-status { margin-top: 1rem; font-size: 0.95rem; font-weight: 600; text-align: center; min-height: 1.2em; }
.form-status.is-error { color: #c0392b; }
.form-status.is-success { color: var(--green-600); }
.btn[aria-busy="true"] { opacity: 0.7; pointer-events: none; }

/* Footer ----------------------------------------------------------------- */
.site-footer { background: var(--navy-900); color: rgba(255,255,255,0.7); padding-top: clamp(3rem, 2rem + 3vw, 4.5rem); }
.site-footer__inner { display: grid; grid-template-columns: 1.4fr 2fr; gap: clamp(2rem, 1rem + 4vw, 4rem); padding-bottom: 3rem; }
.site-footer .brand__name { color: #fff; }
.site-footer .brand__tag { color: var(--steel); }
.site-footer .brand__mark rect { fill: var(--navy-700); }
.site-footer__desc { margin-top: 1.1rem; font-size: 0.95rem; color: rgba(255,255,255,0.6); max-width: 340px; }
.site-footer__cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.footer-col__title { font-size: 0.82rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--steel); margin-bottom: 1rem; }
.footer-col ul { display: grid; gap: 0.6rem; }
.footer-col a { font-size: 0.95rem; color: rgba(255,255,255,0.7); transition: color var(--dur) var(--ease); }
.footer-col a:hover { color: var(--green); }
.site-footer__bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.6rem; padding-block: 1.6rem; border-top: 1px solid rgba(255,255,255,0.1); font-size: 0.85rem; color: rgba(255,255,255,0.5); }

/* 404 -------------------------------------------------------------------- */
.notfound { min-height: 80vh; display: grid; place-items: center; text-align: center; background: var(--navy); color: #fff; }
.notfound__title { font-size: clamp(2rem, 1.4rem + 3vw, 3.2rem); color: #fff; margin: 0.6rem 0 1rem; }
.notfound__text { color: rgba(255,255,255,0.7); margin-bottom: 2rem; }
.notfound .eyebrow { justify-content: center; color: var(--steel); }

/* Reveal (motion) -------------------------------------------------------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); transition-delay: calc(var(--i, 0) * 60ms); }
.reveal.is-visible { opacity: 1; transform: none; }

/* Responsivo ------------------------------------------------------------- */
@media (max-width: 980px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .case-card { grid-template-columns: 1fr; gap: 1rem; }
  .about { grid-template-columns: 1fr; }
  .about__pillars { position: static; grid-template-columns: repeat(3, 1fr); }
  .contact { grid-template-columns: 1fr; }
  .clients-wall { grid-template-columns: repeat(3, 1fr); }
  .site-footer__inner { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .nav, .nav__cta { display: none; }
  .nav-toggle { display: flex; }
  .services-grid { grid-template-columns: 1fr; }
  .about__pillars { grid-template-columns: 1fr; }
  .clients-wall { grid-template-columns: repeat(2, 1fr); }
  .field-row { grid-template-columns: 1fr; }
  .site-footer__cols { grid-template-columns: 1fr 1fr; }
  .brand__tag { display: none; }
}
@media (max-width: 440px) {
  .clients-wall { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
  .site-footer__cols { grid-template-columns: 1fr; }
}

/* Acessibilidade: movimento reduzido ------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}