/* ==========================================================================
   WRS Tech — design system
   Base: azul-marinho profundo + ciano da marca
   ========================================================================== */

:root {
  --navy-900: #050f1f;
  --navy-800: #08162c;
  --navy-700: #0b1f3a;
  --navy-600: #102a4c;
  --line: rgba(120, 165, 210, .16);
  --line-strong: rgba(120, 165, 210, .32);

  --cyan: #3fe0f0;
  --cyan-600: #21c2d6;
  --cyan-soft: rgba(63, 224, 240, .12);

  --text: #eaf2fb;
  --muted: #9fb6ce;
  --muted-dim: #7690ab;

  --container: 1180px;
  --radius: 16px;
  --radius-lg: 24px;

  --shadow: 0 24px 60px rgba(0, 8, 20, .45);
  --ease: cubic-bezier(.22, .61, .36, 1);
}

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

html { scroll-behavior: smooth; scroll-padding-top: 88px; }

body {
  margin: 0;
  background: var(--navy-900);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; }

h1, h2, h3 {
  line-height: 1.12;
  letter-spacing: -.02em;
  margin: 0 0 .5em;
  font-weight: 800;
}

h1 { font-size: clamp(2.3rem, 5.4vw, 3.9rem); }
h2 { font-size: clamp(1.75rem, 3.6vw, 2.6rem); }
h3 { font-size: 1.2rem; font-weight: 700; letter-spacing: -.01em; }
p { margin: 0 0 1rem; }

.container {
  width: min(100% - 2.5rem, var(--container));
  margin-inline: auto;
}

.section { padding: clamp(4rem, 9vw, 7rem) 0; }
.section-dark { background: var(--navy-800); border-block: 1px solid var(--line); }
.section-soft { background: linear-gradient(180deg, var(--navy-900), var(--navy-800)); }

.eyebrow {
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 .9rem;
}

.lead { font-size: 1.1rem; color: var(--muted); }
.muted { color: var(--muted); }

.section-head { max-width: 760px; margin-bottom: clamp(2.5rem, 5vw, 3.5rem); }
.section-head p { color: var(--muted); margin-bottom: 0; }
.section-head.center { margin-inline: auto; text-align: center; }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--cyan);
  color: var(--navy-900);
  padding: .75rem 1.25rem;
  font-weight: 700;
  z-index: 200;
}
.skip-link:focus { left: 1rem; top: 1rem; }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---------- Botões ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  padding: .95rem 1.6rem;
  border: 1px solid transparent;
  border-radius: 999px;
  background: var(--cyan);
  color: #04121f;
  font-weight: 700;
  font-size: .96rem;
  text-decoration: none;
  cursor: pointer;
  transition: transform .18s var(--ease), background .18s var(--ease), box-shadow .18s var(--ease);
}
.btn:hover { background: #64e9f6; transform: translateY(-2px); box-shadow: 0 12px 30px rgba(63, 224, 240, .28); }
.btn .arrow { transition: transform .18s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }

.btn-outline { background: transparent; border-color: var(--line-strong); color: var(--text); }
.btn-outline:hover { background: rgba(63, 224, 240, .1); border-color: var(--cyan); box-shadow: none; }

.btn-sm { padding: .62rem 1.15rem; font-size: .86rem; }

.text-link {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  color: var(--cyan);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .18s var(--ease);
}
.text-link:hover { border-bottom-color: var(--cyan); }

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(5, 15, 31, .82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s var(--ease), background .25s var(--ease);
}
.site-header.is-stuck { border-bottom-color: var(--line); background: rgba(5, 15, 31, .95); }

.nav-wrap {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  min-height: 74px;
}

.brand {
  display: flex;
  align-items: center;
  gap: .7rem;
  text-decoration: none;
  margin-right: auto;
}
.brand img { width: 44px; height: 44px; border-radius: 10px; }
.brand span { display: flex; flex-direction: column; line-height: 1.15; }
.brand strong { font-size: 1.02rem; font-weight: 800; letter-spacing: -.01em; }
.brand small { font-size: .7rem; color: var(--muted-dim); letter-spacing: .09em; text-transform: uppercase; }

.main-nav { display: flex; align-items: center; gap: 1.6rem; }
.main-nav a {
  text-decoration: none;
  font-size: .93rem;
  font-weight: 500;
  color: var(--muted);
  transition: color .18s var(--ease);
}
.main-nav a:hover { color: var(--text); }
.main-nav .btn { color: #04121f; }

.menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: transparent;
  cursor: pointer;
}
.menu-btn span {
  display: block;
  width: 18px;
  height: 2px;
  margin-inline: auto;
  background: var(--text);
  border-radius: 2px;
  transition: transform .2s var(--ease), opacity .2s var(--ease);
}
.menu-btn[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-btn[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-btn[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */

.hero {
  position: relative;
  padding: clamp(3.5rem, 8vw, 6.5rem) 0 clamp(3rem, 6vw, 5rem);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 120%;
  background:
    radial-gradient(60% 55% at 22% 18%, rgba(63, 224, 240, .16), transparent 60%),
    radial-gradient(55% 50% at 82% 12%, rgba(38, 96, 180, .28), transparent 62%);
  pointer-events: none;
}
.hero::after {
  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;
  mask-image: radial-gradient(70% 60% at 50% 30%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(70% 60% at 50% 30%, #000 20%, transparent 78%);
  opacity: .5;
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.hero h1 { margin-bottom: 1.1rem; }
.hero h1 .accent { color: var(--cyan); }
.hero-sub { font-size: clamp(1.02rem, 1.7vw, 1.2rem); color: var(--muted); max-width: 52ch; }

.hero-actions { display: flex; flex-wrap: wrap; gap: .85rem; margin: 2rem 0 1.75rem; }

.hero-proof { display: flex; flex-wrap: wrap; gap: .6rem; }
.hero-proof span {
  font-size: .82rem;
  color: var(--muted);
  padding: .4rem .9rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(16, 42, 76, .5);
}

/* Mockup do navegador no hero */
.hero-visual { position: relative; }
.browser {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, var(--navy-700), var(--navy-800));
  box-shadow: var(--shadow);
  overflow: hidden;
}
.browser-bar {
  display: flex;
  align-items: center;
  gap: .4rem;
  padding: .8rem 1rem;
  border-bottom: 1px solid var(--line);
  background: rgba(5, 15, 31, .5);
}
.browser-bar i {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--line-strong);
}
.browser-bar .url {
  margin-left: .6rem;
  font-size: .74rem;
  color: var(--muted-dim);
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
}
.browser-body { padding: 1.5rem; display: grid; gap: 1rem; }
.browser-body .bar { height: 10px; border-radius: 999px; background: rgba(120, 165, 210, .18); }
.browser-body .bar.w70 { width: 70%; }
.browser-body .bar.w45 { width: 45%; }
.browser-body .bar.cyan { background: var(--cyan); height: 14px; width: 56%; }

.mini-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: .7rem; margin-top: .5rem; }
.mini-cards div {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: .85rem .7rem;
  background: rgba(16, 42, 76, .45);
  text-align: center;
  font-size: .72rem;
  color: var(--muted);
}
.mini-cards strong { display: block; color: var(--cyan); font-size: 1.1rem; }

/* ---------- Faixa de soluções rápidas ---------- */

.quick-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.quick-grid a {
  display: flex;
  flex-direction: column;
  gap: .3rem;
  padding: 1.6rem 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--navy-800);
  text-decoration: none;
  transition: border-color .2s var(--ease), transform .2s var(--ease), background .2s var(--ease);
}
.quick-grid a:hover { border-color: var(--cyan); transform: translateY(-4px); background: var(--navy-700); }
.quick-grid small { font-size: .7rem; letter-spacing: .16em; text-transform: uppercase; color: var(--cyan); font-weight: 700; }
.quick-grid strong { font-size: 1.15rem; font-weight: 700; }
.quick-grid span { font-size: .88rem; color: var(--muted); }

/* ---------- Split ---------- */

.split {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}
.split h2 { margin-bottom: 0; }

/* ---------- Cards de solução ---------- */

.solutions { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }

.solution {
  display: flex;
  flex-direction: column;
  padding: 2rem 1.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(170deg, var(--navy-700), var(--navy-800));
  position: relative;
  overflow: hidden;
  transition: border-color .22s var(--ease), transform .22s var(--ease);
}
.solution::after {
  content: "";
  position: absolute;
  inset: auto -30% -60% -30%;
  height: 140px;
  background: radial-gradient(closest-side, rgba(63, 224, 240, .14), transparent);
  opacity: 0;
  transition: opacity .25s var(--ease);
}
.solution:hover { border-color: var(--line-strong); transform: translateY(-5px); }
.solution:hover::after { opacity: 1; }

.solution .icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: var(--cyan-soft);
  border: 1px solid rgba(63, 224, 240, .28);
  margin-bottom: 1.25rem;
}
.solution .icon svg { width: 24px; height: 24px; stroke: var(--cyan); fill: none; stroke-width: 1.8; }
.solution h3 { margin-bottom: .6rem; }
.solution p { color: var(--muted); font-size: .95rem; }

.solution ul {
  list-style: none;
  margin: .5rem 0 0;
  padding: 0;
  display: grid;
  gap: .5rem;
}
.solution li {
  position: relative;
  padding-left: 1.4rem;
  font-size: .9rem;
  color: var(--muted);
}
.solution li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .55em;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--cyan);
}

/* ---------- Etapas (em que ponto você está) ---------- */

.stage-panel {
  padding: clamp(2rem, 5vw, 3.25rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--navy-800);
}
.stage-options { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 2rem; }
.stage-options a {
  display: flex;
  flex-direction: column;
  gap: .35rem;
  padding: 1.4rem 1.35rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--navy-700);
  text-decoration: none;
  transition: border-color .2s var(--ease), transform .2s var(--ease);
}
.stage-options a:hover { border-color: var(--cyan); transform: translateY(-3px); }
.stage-options span { font-size: .78rem; font-weight: 700; color: var(--cyan); letter-spacing: .1em; }
.stage-options strong { font-size: 1.05rem; }
.stage-options small { font-size: .86rem; color: var(--muted); line-height: 1.5; }

/* ---------- Processo ---------- */

.process-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  counter-reset: step;
}
.process-grid li {
  position: relative;
  padding-top: 1.75rem;
  border-top: 2px solid var(--line);
}
.process-grid li::before {
  content: "";
  position: absolute;
  top: -2px;
  left: 0;
  width: 42px;
  height: 2px;
  background: var(--cyan);
}
.process-grid span {
  display: block;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--cyan);
  margin-bottom: .55rem;
}
.process-grid p { color: var(--muted); font-size: .92rem; margin: 0; }

/* ---------- Projetos ---------- */

.projects { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }

.project {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--navy-800);
  overflow: hidden;
  text-decoration: none;
  transition: border-color .22s var(--ease), transform .22s var(--ease);
}
.project:hover { border-color: var(--cyan); transform: translateY(-5px); }

.project-thumb {
  aspect-ratio: 16 / 10;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  background: linear-gradient(150deg, var(--navy-600), var(--navy-900));
  border-bottom: 1px solid var(--line);
  position: relative;
}
.project-thumb::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(120, 165, 210, .1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 165, 210, .1) 1px, transparent 1px);
  background-size: 28px 28px;
}
.project-thumb b {
  position: relative;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -.02em;
  text-align: center;
  color: var(--text);
}
.project-body { padding: 1.5rem; display: flex; flex-direction: column; gap: .6rem; flex: 1; }
.project-body small {
  font-size: .7rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cyan);
  font-weight: 700;
}
.project-body p { color: var(--muted); font-size: .92rem; margin: 0; flex: 1; }
.project-tags { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: .3rem; }
.project-tags i {
  font-style: normal;
  font-size: .72rem;
  color: var(--muted-dim);
  padding: .22rem .6rem;
  border: 1px solid var(--line);
  border-radius: 999px;
}

/* ---------- Stack ---------- */

.stack-chips { display: flex; flex-wrap: wrap; gap: .6rem; }
.stack-chips span {
  font-size: .85rem;
  color: var(--muted);
  padding: .5rem 1.05rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--navy-800);
  transition: border-color .2s var(--ease), color .2s var(--ease);
}
.stack-chips span:hover { border-color: var(--cyan); color: var(--text); }

/* ---------- FAQ ---------- */

.faq-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(2rem, 5vw, 4rem); align-items: start; }
.faq-list { display: grid; gap: .75rem; }

.faq-list details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--navy-800);
  overflow: hidden;
  transition: border-color .2s var(--ease);
}
.faq-list details[open] { border-color: var(--line-strong); }
.faq-list summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1.15rem 1.4rem;
  font-weight: 600;
  font-size: .98rem;
  cursor: pointer;
  list-style: none;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span {
  flex-shrink: 0;
  color: var(--cyan);
  font-size: 1.3rem;
  line-height: 1;
  transition: transform .2s var(--ease);
}
.faq-list details[open] summary span { transform: rotate(45deg); }
.faq-list details > div { padding: 0 1.4rem 1.25rem; }
.faq-list details p { color: var(--muted); font-size: .93rem; margin: 0; }

/* ---------- CTA band ---------- */

.cta-band {
  position: relative;
  padding: clamp(3rem, 7vw, 5rem) 0;
  background: linear-gradient(135deg, var(--navy-600), var(--navy-800));
  border-block: 1px solid var(--line);
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute;
  inset: -50% -20% auto auto;
  width: 60%;
  height: 200%;
  background: radial-gradient(closest-side, rgba(63, 224, 240, .16), transparent);
}
.cta-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
}
.cta-inner h2 { margin-bottom: .6rem; }
.cta-inner p { color: var(--muted); margin: 0; }
.cta-actions { display: flex; flex-wrap: wrap; gap: .85rem; justify-content: flex-end; }

/* ---------- Footer ---------- */

.footer {
  padding: clamp(3rem, 6vw, 4.5rem) 0 2rem;
  background: var(--navy-900);
  border-top: 1px solid var(--line);
  font-size: .92rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--line);
}
.footer h4 {
  font-size: .76rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted-dim);
  margin: 0 0 1rem;
  font-weight: 700;
}
.footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .6rem; }
.footer a { color: var(--muted); text-decoration: none; transition: color .18s var(--ease); }
.footer a:hover { color: var(--cyan); }
.footer-brand p { color: var(--muted); max-width: 38ch; margin: 1rem 0 0; font-size: .9rem; }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1.75rem;
  color: var(--muted-dim);
  font-size: .85rem;
}
.footer-bottom a { color: var(--muted-dim); }

/* ---------- WhatsApp flutuante ---------- */

.whatsapp-float {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 90;
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25d366;
  box-shadow: 0 10px 28px rgba(0, 0, 0, .4);
  transition: transform .2s var(--ease);
}
.whatsapp-float:hover { transform: scale(1.08); }
.whatsapp-float svg { width: 30px; height: 30px; fill: #fff; }

/* ---------- Animação de entrada ----------
   O conteúdo é visível por padrão. Só escondemos quando o JS confirma que
   está rodando (classe .js no <html>), para que uma falha de script nunca
   deixe a página em branco. */

.js .reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}
.js .reveal.is-visible { opacity: 1; transform: none; }

/* ---------- Responsivo ---------- */

@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; max-width: 480px; }
  .split, .faq-layout, .cta-inner { grid-template-columns: 1fr; }
  .cta-actions { justify-content: flex-start; }
  .solutions, .projects, .quick-grid, .stage-options { grid-template-columns: 1fr 1fr; }
  .process-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }

  .menu-btn { display: flex; }
  .main-nav {
    position: fixed;
    inset: 74px 0 auto;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 1rem 1.25rem 1.75rem;
    background: var(--navy-800);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
    transform: translateY(-120%);
    transition: transform .28s var(--ease);
  }
  .main-nav.is-open { transform: none; }
  .main-nav a { padding: .85rem .25rem; border-bottom: 1px solid var(--line); font-size: 1rem; }
  .main-nav .btn { margin-top: 1rem; border-bottom: 0; justify-content: center; }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  .solutions, .projects, .quick-grid, .stage-options, .process-grid, .footer-grid { grid-template-columns: 1fr; }
  .hero-actions .btn { width: 100%; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
  .js .reveal { opacity: 1; transform: none; }
}