:root {
  --bg: #07070f;
  --bg-elev: #0e0e1a;
  --bg-soft: #131322;
  --text: #f2f4f8;
  --muted: #9aa3b5;
  --line: rgba(255, 255, 255, 0.08);
  --cyan: #3de0ff;
  --violet: #8b5cf6;
  --accent: linear-gradient(135deg, var(--cyan), var(--violet));
  --wa: #25d366;
  --radius: 14px;
  --font-display: "Outfit", system-ui, sans-serif;
  --font-body: "Manrope", system-ui, sans-serif;
  --max: 1120px;
  --header-h: 72px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--cyan);
  color: #000;
  padding: 0.75rem 1rem;
  z-index: 1000;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(7, 7, 15, 0.78);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.brand img {
  width: 42px;
  height: auto;
  border-radius: 8px;
}

.brand-name {
  font-size: 1.15rem;
}

.nav {
  display: none;
  gap: 1.75rem;
  font-size: 0.95rem;
  color: var(--muted);
}

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

.header-cta {
  display: none;
}

.nav-toggle {
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: transparent;
  display: grid;
  place-content: center;
  gap: 6px;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text);
}

.mobile-menu {
  display: grid;
  gap: 0.25rem;
  padding: 0.5rem 1.25rem 1.25rem;
  border-bottom: 1px solid var(--line);
  background: rgba(7, 7, 15, 0.96);
}

.mobile-menu a {
  padding: 0.85rem 0.5rem;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
}

.mobile-menu .btn {
  margin-top: 0.75rem;
  border-bottom: 0;
  justify-content: center;
}

.mobile-menu[hidden] {
  display: none;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.35rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--accent);
  color: #050510;
  box-shadow: 0 10px 40px rgba(61, 224, 255, 0.18);
}

.btn-ghost {
  border-color: var(--line);
  color: var(--text);
  background: rgba(255, 255, 255, 0.02);
}

.btn-wa {
  background: var(--wa);
  color: #04210f;
}

.btn-lg {
  padding: 1.05rem 1.7rem;
  font-size: 1.05rem;
}

/* Hero */
.hero {
  position: relative;
  min-height: calc(100svh - var(--header-h));
  display: grid;
  align-items: center;
  isolation: isolate;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  background:
    radial-gradient(ellipse 70% 50% at 50% -10%, rgba(61, 224, 255, 0.18), transparent 55%),
    radial-gradient(ellipse 50% 40% at 80% 80%, rgba(139, 92, 246, 0.16), transparent 50%),
    radial-gradient(ellipse 40% 35% at 10% 70%, rgba(61, 224, 255, 0.08), transparent 45%),
    var(--bg);
}

.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black, transparent);
  opacity: 0.5;
  animation: gridDrift 28s linear infinite;
}

@keyframes gridDrift {
  from { transform: translateY(0); }
  to { transform: translateY(64px); }
}

.hero-inner {
  padding: 4.5rem 0 5rem;
  text-align: center;
  max-width: 820px;
}

.hero-logo {
  width: 140px;
  height: auto;
  margin: 0 auto 1.75rem;
  border-radius: 22px;
  box-shadow: 0 20px 60px rgba(61, 224, 255, 0.12);
}

.hero-title {
  margin: 0 auto 1.1rem;
  max-width: 20ch;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 3.8vw, 2.35rem);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.02em;
  overflow: visible;
  padding-bottom: 0.12em;
}

.hero-lead {
  margin: 0 auto 2rem;
  max-width: 42ch;
  color: var(--muted);
  font-size: 1.08rem;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  justify-content: center;
}

/* Sections */
.section {
  padding: 5.5rem 0;
  border-top: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 0.75rem;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.section-title {
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.35;
  max-width: 20ch;
  overflow: visible;
  padding-bottom: 0.12em;
}

h1, h2, h3, p, li, a, span, strong {
  text-rendering: geometricPrecision;
}

h1, h2, h3 {
  line-height: 1.35;
  overflow: visible;
  padding-bottom: 0.08em;
}

.section-lead {
  margin: 0 0 2.5rem;
  color: var(--muted);
  max-width: 48ch;
}

.service-grid {
  display: grid;
  gap: 1.25rem;
}

.service {
  padding: 1.75rem 1.5rem;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  position: relative;
  overflow: visible;
}

.service::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--accent);
}

.service h3 {
  margin: 0 0 0.65rem;
  font-family: var(--font-display);
  font-size: 1.35rem;
  line-height: 1.35;
  overflow: visible;
  padding-bottom: 0.08em;
}

.service p {
  margin: 0 0 1rem;
  color: var(--muted);
}

.service ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.45rem;
  color: var(--text);
  font-size: 0.95rem;
}

.service li::before {
  content: "→ ";
  color: var(--cyan);
}

/* IDE */
.ide {
  background:
    radial-gradient(ellipse 50% 60% at 100% 0%, rgba(139, 92, 246, 0.12), transparent 55%),
    var(--bg);
}

.ide-grid {
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

.check-list {
  margin: 0 0 1.75rem;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.7rem;
}

.check-list li {
  padding-left: 1.5rem;
  position: relative;
  color: var(--muted);
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--accent);
}

.ide-panel {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 4px);
  padding: 0.35rem;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
}

.ide-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.05rem 1.15rem;
  border-radius: 12px;
  color: var(--muted);
}

.ide-row:nth-child(odd) {
  background: rgba(255, 255, 255, 0.03);
}

.ide-row strong {
  color: var(--text);
  font-weight: 600;
  background: var(--accent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Process */
.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.25rem;
  counter-reset: none;
}

.steps li {
  padding: 1.5rem;
  border-top: 1px solid var(--line);
}

.step-num {
  display: block;
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  color: var(--cyan);
  margin-bottom: 0.5rem;
}

.steps h3 {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
}

.steps p {
  margin: 0;
  color: var(--muted);
}

/* Why */
.why-grid {
  display: grid;
  gap: 1.5rem;
}

.why-item h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
}

.why-item p {
  margin: 0;
  color: var(--muted);
}

/* Contact */
.contact {
  background:
    radial-gradient(ellipse 60% 50% at 50% 100%, rgba(61, 224, 255, 0.12), transparent 60%),
    var(--bg);
  text-align: center;
}

.contact .section-title,
.contact .section-lead {
  margin-inline: auto;
}

.contact .section-lead {
  margin-bottom: 1.75rem;
}

.contact-meta {
  margin: 1.25rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.contact-meta a:hover {
  color: var(--cyan);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.75rem 0;
}

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

.footer-inner .brand span {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--text);
}

.footer-inner .brand img {
  width: 32px;
  border-radius: 6px;
}

/* FAB WhatsApp */
.fab-wa {
  position: fixed;
  right: 1.1rem;
  bottom: 1.1rem;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--wa);
  color: #04210f;
  display: grid;
  place-items: center;
  box-shadow: 0 12px 30px rgba(37, 211, 102, 0.35);
  z-index: 60;
  transition: transform 0.2s ease;
}

.fab-wa:hover {
  transform: scale(1.06);
}

/* Reveal motion */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
  overflow: visible;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .hero-bg::after { animation: none; }
}

@media (min-width: 768px) {
  .nav,
  .header-cta {
    display: flex;
  }

  .nav-toggle {
    display: none;
  }

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

  .steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .why-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }

  .ide-grid {
    grid-template-columns: 1.15fr 0.85fr;
  }

  .hero-logo {
    width: 160px;
  }
}

@media (min-width: 1024px) {
  .steps {
    grid-template-columns: repeat(4, 1fr);
  }

  .steps li {
    border-top: 0;
    border-left: 1px solid var(--line);
    padding-left: 1.25rem;
  }

  .steps li:first-child {
    border-left: 0;
    padding-left: 0;
  }
}