/* ==========================================================
   Soluções RPA — Landing page
   ========================================================== */

:root {
  --bg: #0b1120;
  --bg-alt: #0f172a;
  --surface: #16213a;
  --border: rgba(148, 163, 184, 0.15);
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --primary: #38bdf8;
  --primary-strong: #0ea5e9;
  --accent: #818cf8;
  --radius: 14px;
  --container: 1120px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}

h1, h2, h3 { line-height: 1.2; font-weight: 700; }

/* ---------- Header ---------- */
.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  padding: 1rem 0;
  transition: background 0.3s, box-shadow 0.3s, padding 0.3s;
}

.header.scrolled {
  background: rgba(11, 17, 32, 0.85);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--border);
  padding: 0.6rem 0;
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.logo span { color: var(--primary); }

.nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav a:hover { color: var(--text); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  background: linear-gradient(135deg, var(--primary-strong), var(--accent));
  color: #fff;
  padding: 0.85rem 1.75rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s, filter 0.2s;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(56, 189, 248, 0.3);
  filter: brightness(1.05);
}

.btn--small { padding: 0.5rem 1.2rem; color: #fff !important; }

.btn--ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

.btn--ghost:hover { box-shadow: none; border-color: var(--primary); }

.btn--light { background: #fff; color: var(--bg); }
.btn--light:hover { box-shadow: 0 8px 24px rgba(255, 255, 255, 0.25); }

.btn--ghost-light {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.35);
  color: #fff;
}

/* ---------- Hero ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 7rem 0 4rem;
  background:
    radial-gradient(ellipse 60% 50% at 70% 20%, rgba(56, 189, 248, 0.12), transparent),
    radial-gradient(ellipse 50% 40% at 20% 80%, rgba(129, 140, 248, 0.1), transparent);
}

.hero__inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero__tag {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  padding: 0.35rem 1rem;
  border-radius: 999px;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

.highlight {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero__subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 32rem;
  margin-bottom: 2rem;
}

.hero__actions { display: flex; gap: 1rem; flex-wrap: wrap; }

/* Hero visual */
.hero__visual { position: relative; height: 360px; }

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.5;
}

.orb--1 {
  width: 260px; height: 260px;
  background: var(--primary-strong);
  top: 10%; right: 5%;
  animation: drift 9s ease-in-out infinite alternate;
}

.orb--2 {
  width: 200px; height: 200px;
  background: var(--accent);
  bottom: 5%; left: 10%;
  animation: drift 11s ease-in-out infinite alternate-reverse;
}

.card-float {
  position: absolute;
  background: rgba(22, 33, 58, 0.85);
  border: 1px solid var(--border);
  backdrop-filter: blur(8px);
  padding: 0.8rem 1.3rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
}

.card-float--1 { top: 12%; left: 8%; animation: float 6s ease-in-out infinite; }
.card-float--2 { top: 45%; right: 4%; animation: float 7s ease-in-out infinite 0.8s; }
.card-float--3 { bottom: 10%; left: 22%; animation: float 6.5s ease-in-out infinite 1.6s; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}

@keyframes drift {
  from { transform: translate(0, 0); }
  to { transform: translate(30px, -25px); }
}

/* ---------- Sections ---------- */
.section { padding: 6rem 0; }

.section--alt { background: var(--bg-alt); }

.section__head {
  text-align: center;
  max-width: 36rem;
  margin: 0 auto 3.5rem;
}

.section__head h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.section__head p { color: var(--text-muted); font-size: 1.05rem; }

/* ---------- Cards / grid ---------- */
.grid { display: grid; gap: 1.5rem; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: transform 0.25s, border-color 0.25s;
}

.card:hover {
  transform: translateY(-6px);
  border-color: rgba(56, 189, 248, 0.4);
}

.card__icon { font-size: 2rem; margin-bottom: 1rem; }

.card h3 { font-size: 1.2rem; margin-bottom: 0.6rem; }

.card p { color: var(--text-muted); font-size: 0.95rem; }

/* ---------- Steps ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.step {
  position: relative;
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg);
}

.step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-strong), var(--accent));
  color: #fff;
  font-weight: 700;
  margin-bottom: 1rem;
}

.step h3 { font-size: 1.05rem; margin-bottom: 0.5rem; }

.step p { color: var(--text-muted); font-size: 0.9rem; }

/* ---------- Sobre ---------- */
.about {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about__text h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
}

.about__text p { color: var(--text-muted); margin-bottom: 1rem; }

.about__stats {
  display: grid;
  gap: 1rem;
}

.stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 2rem;
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
}

.stat strong {
  font-size: 2.2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat span { color: var(--text-muted); font-size: 0.95rem; }

/* ---------- CTA ---------- */
.section--cta {
  background:
    radial-gradient(ellipse 70% 80% at 50% 0%, rgba(56, 189, 248, 0.15), transparent),
    var(--bg-alt);
}

.cta { text-align: center; max-width: 42rem; }

.cta h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.cta p { color: var(--text-muted); font-size: 1.1rem; margin-bottom: 2rem; }

.cta__actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ---------- Reveal on scroll ----------
   Só esconde os elementos quando o JS está ativo (classe .js no <html>),
   garantindo que a página nunca fique em branco sem JavaScript. */
.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.js .reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__visual { display: none; }
  .grid--3 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .about { grid-template-columns: 1fr; gap: 2.5rem; }
}

@media (max-width: 640px) {
  .nav {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: min(75vw, 300px);
    background: var(--bg-alt);
    border-left: 1px solid var(--border);
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
    transform: translateX(100%);
    transition: transform 0.3s ease;
  }

  .nav.open { transform: translateX(0); }

  .nav a { font-size: 1.1rem; }

  .nav-toggle { display: flex; position: relative; z-index: 101; }

  .steps { grid-template-columns: 1fr; }

  .footer__inner { justify-content: center; text-align: center; }
}

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