:root {
  --bg: #07111f;
  --bg-soft: #0c1a2d;
  --card: rgba(14, 27, 46, 0.78);
  --card-strong: #0f2138;
  --line: rgba(255, 255, 255, 0.08);
  --text: #eef4ff;
  --muted: #a7b6cc;
  --primary: #15c39a;
  --primary-2: #27e1b6;
  --accent: #4da3ff;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  --radius: 22px;
  --radius-sm: 14px;
  --container: 1200px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(39, 225, 182, 0.09), transparent 26%),
    radial-gradient(circle at top right, rgba(77, 163, 255, 0.10), transparent 30%),
    linear-gradient(180deg, #06101d 0%, #081220 45%, #0a1422 100%);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: linear-gradient(to bottom, rgba(255,255,255,0.25), transparent 85%);
  z-index: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

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

section,
header,
footer {
  position: relative;
  z-index: 1;
}

.container {
  width: min(92%, var(--container));
  margin: 0 auto;
}

/* HEADER */

.header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(5, 12, 22, 0.72);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.nav {
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: #ffffff;
}

.logo span {
  color: var(--primary-2);
}

nav {
  display: flex;
  align-items: center;
  gap: 26px;
}

nav a {
  color: var(--muted);
  font-size: 0.98rem;
  transition: 0.25s ease;
}

nav a:hover {
  color: #ffffff;
}

.btn-demo,
.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: 0.28s ease;
  cursor: pointer;
}

.btn-demo {
  padding: 12px 18px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #04111d;
  font-weight: 700;
  box-shadow: 0 12px 28px rgba(21, 195, 154, 0.22);
}

.btn-demo:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 34px rgba(21, 195, 154, 0.28);
}

/* HERO */

.hero {
  padding: 90px 0 70px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 48px;
  align-items: center;
}

.hero-text h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  line-height: 1.05;
  font-weight: 800;
  letter-spacing: -0.04em;
  margin-bottom: 22px;
  max-width: 760px;
}

.hero-text h1 span {
  display: inline-block;
  background: linear-gradient(135deg, #ffffff 0%, #7de5d0 40%, #79b9ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-text p {
  max-width: 660px;
  font-size: 1.08rem;
  color: var(--muted);
  margin-bottom: 34px;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.btn-primary {
  min-height: 54px;
  padding: 0 24px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #04111d;
  font-weight: 800;
  box-shadow: 0 14px 32px rgba(21, 195, 154, 0.24);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 38px rgba(21, 195, 154, 0.30);
}

.btn-secondary {
  min-height: 54px;
  padding: 0 24px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.10);
  color: #ffffff;
  background: rgba(255,255,255,0.03);
}

.btn-secondary:hover {
  transform: translateY(-3px);
  border-color: rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.06);
}

.hero-card {
  position: relative;
}

.hero-card::before {
  content: "";
  position: absolute;
  inset: 10% -4% -8% 8%;
  background: radial-gradient(circle, rgba(39,225,182,0.22), transparent 58%);
  filter: blur(35px);
  z-index: 0;
}

.card {
  position: relative;
  z-index: 1;
  padding: 26px;
  border-radius: 28px;
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.02)),
    var(--card);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.08), transparent 45%);
  pointer-events: none;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.card-header span {
  font-weight: 800;
  letter-spacing: 0.04em;
}

.card-body {
  display: grid;
  gap: 14px;
}

.card-body p {
  padding: 14px 16px;
  border-radius: 14px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  color: #dce8f7;
}

/* SECTIONS */

.section-problema,
.section-features,
.section-processo,
.section-seguranca,
.section-demo {
  padding: 92px 0;
}

.section-problema h2,
.section-features h2,
.section-processo h2,
.section-seguranca h2,
.section-demo h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.1;
  margin-bottom: 16px;
  letter-spacing: -0.03em;
}

.grid-problema,
.grid-features,
.seguranca-grid {
  display: grid;
  gap: 22px;
  margin-top: 34px;
}

.grid-problema {
  grid-template-columns: repeat(4, 1fr);
}

.box,
.feature,
.seguranca-grid div {
  position: relative;
  padding: 28px 24px;
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.015)),
    rgba(9, 20, 36, 0.78);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  color: #e8f1fc;
}

.box {
  min-height: 138px;
  display: flex;
  align-items: center;
  font-size: 1.05rem;
  font-weight: 600;
}

.section-features {
  background: linear-gradient(180deg, rgba(255,255,255,0.015), rgba(255,255,255,0));
}

.grid-features {
  grid-template-columns: repeat(3, 1fr);
}

.feature h3 {
  font-size: 1.15rem;
  margin-bottom: 12px;
}

.feature p {
  color: var(--muted);
  font-size: 0.98rem;
}

.steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
  margin-top: 36px;
}

.step {
  position: relative;
  padding: 26px 18px;
  text-align: center;
  border-radius: 20px;
  border: 1px solid var(--line);
  background: rgba(10, 22, 38, 0.8);
  box-shadow: var(--shadow);
}

.step span {
  width: 54px;
  height: 54px;
  margin: 0 auto 16px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 1.05rem;
  color: #04111d;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
}

.step p {
  color: #dfe9f8;
  font-weight: 500;
}

.section-seguranca {
  background:
    radial-gradient(circle at center, rgba(77,163,255,0.08), transparent 35%),
    linear-gradient(180deg, rgba(255,255,255,0.015), rgba(255,255,255,0));
}

.seguranca-text {
  max-width: 800px;
  color: var(--muted);
  font-size: 1.03rem;
}

.seguranca-grid {
  grid-template-columns: repeat(4, 1fr);
}

.seguranca-grid div {
  text-align: center;
  font-weight: 600;
}

.section-demo {
  text-align: center;
}

.section-demo p {
  max-width: 680px;
  margin: 0 auto 28px;
  color: var(--muted);
  font-size: 1.03rem;
}

/* FOOTER */

footer {
  padding: 28px 0 42px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

footer p {
  text-align: center;
  color: var(--muted);
  font-size: 0.95rem;
}

/* REVEAL */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* MOBILE */

@media (max-width: 1100px) {
  .hero-grid,
  .grid-problema,
  .grid-features,
  .seguranca-grid,
  .steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-grid {
    align-items: start;
  }

  .hero-card {
    max-width: 680px;
  }
}

@media (max-width: 820px) {
  .header {
    position: relative;
  }

  .nav {
    flex-direction: column;
    justify-content: center;
    padding: 18px 0;
  }

  nav {
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px 18px;
  }

  .hero {
    padding-top: 58px;
  }

  .hero-grid,
  .grid-problema,
  .grid-features,
  .seguranca-grid,
  .steps {
    grid-template-columns: 1fr;
  }

  .hero-text h1 {
    font-size: clamp(2.2rem, 9vw, 3.4rem);
  }

  .box,
  .feature,
  .step,
  .seguranca-grid div,
  .card {
    border-radius: 18px;
  }

  .section-problema,
  .section-features,
  .section-processo,
  .section-seguranca,
  .section-demo {
    padding: 72px 0;
  }
}

@media (max-width: 520px) {
  .container {
    width: min(94%, var(--container));
  }

  .btn-primary,
  .btn-secondary,
  .btn-demo {
    width: 100%;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .logo {
    font-size: 1.2rem;
  }

  nav a {
    font-size: 0.94rem;
  }

  .card-body p {
    font-size: 0.95rem;
  }
}