:root {
  --navy-950: #04101a;
  --navy-900: #071522;
  --navy-850: #0a1b2a;
  --navy-800: #0d2233;
  --cyan-400: #21d4e8;
  --cyan-500: #00b4d8;
  --cyan-700: #006a85;
  --cyan-100: #dffafe;
  --ink: #102536;
  --muted: #607385;
  --line: #d9e6ec;
  --soft: #f4f9fb;
  --white: #ffffff;
  --radius: 18px;
  --shadow: 0 22px 60px rgba(4, 16, 26, .12);
}

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img, svg { display: block; max-width: 100%; }
.container { width: min(1120px, calc(100% - 40px)); margin-inline: auto; }
.skip-link {
  position: fixed; left: 20px; top: -80px; z-index: 100;
  padding: 12px 18px; border-radius: 8px; background: var(--cyan-400);
  color: var(--navy-950); font-weight: 800;
}
.skip-link:focus { top: 20px; }
:focus-visible { outline: 3px solid var(--cyan-400); outline-offset: 4px; }

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(4, 16, 26, .96); border-bottom: 1px solid rgba(33, 212, 232, .13);
  backdrop-filter: blur(16px);
}
.nav { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--white); text-decoration: none; font-weight: 900; letter-spacing: -.03em; }
.brand img { width: 34px; height: 34px; border-radius: 9px; }
.brand-dot { color: var(--cyan-400); }
.nav-links { display: flex; align-items: center; gap: 24px; list-style: none; padding: 0; }
.nav-links a { color: #d7e6ed; text-decoration: none; font-size: .9rem; font-weight: 700; }
.nav-links a:hover { color: var(--cyan-400); }

.button {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 12px 20px; border: 1px solid transparent; border-radius: 10px;
  text-decoration: none; font-weight: 900; line-height: 1.2; transition: transform .2s ease, background .2s ease;
}
.button:hover { transform: translateY(-2px); }
.button--primary { color: var(--navy-950); background: var(--cyan-400); }
.button--secondary { color: var(--white); border-color: rgba(255, 255, 255, .22); background: rgba(255, 255, 255, .05); }
.button--dark { color: var(--white); background: var(--navy-900); }

.breadcrumb { padding-top: 30px; color: #a8bdc7; font-size: .9rem; }
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; }
.breadcrumb li:not(:last-child)::after { content: "/"; margin-left: 8px; color: #5e7886; }
.breadcrumb a { color: var(--cyan-400); }

.hero {
  overflow: hidden; color: var(--white);
  background:
    radial-gradient(circle at 85% 25%, rgba(33, 212, 232, .14), transparent 29%),
    linear-gradient(135deg, var(--navy-950), var(--navy-800));
}
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(300px, .75fr); gap: 64px; align-items: center; padding: 72px 0 88px; }
.eyebrow { color: var(--cyan-400); font-size: .78rem; font-weight: 900; letter-spacing: .15em; text-transform: uppercase; }
h1, h2, h3 { line-height: 1.08; letter-spacing: -.045em; }
h1 { max-width: 800px; margin-top: 18px; font-size: clamp(2.55rem, 6vw, 4.8rem); }
h1 span { color: var(--cyan-400); }
.hero-copy { max-width: 720px; margin-top: 24px; color: #c3d4dc; font-size: clamp(1.06rem, 2vw, 1.22rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.hero-note { margin-top: 18px; color: #96adb8; font-size: .9rem; }
.hero-panel { padding: 30px; border: 1px solid rgba(33, 212, 232, .25); border-radius: 24px; background: rgba(12, 37, 54, .82); box-shadow: var(--shadow); }
.hero-panel strong { display: block; color: var(--cyan-400); font-size: 1rem; text-transform: uppercase; letter-spacing: .08em; }
.hero-panel ul { display: grid; gap: 14px; margin-top: 20px; padding: 0; list-style: none; }
.hero-panel li { display: flex; gap: 12px; align-items: flex-start; color: #e4eff3; }
.hero-panel li::before { content: "✓"; flex: 0 0 26px; display: grid; place-items: center; width: 26px; height: 26px; border-radius: 8px; color: var(--navy-950); background: var(--cyan-400); font-weight: 1000; }

.section { padding: 92px 0; }
.section--soft { background: var(--soft); }
.section--dark { color: var(--white); background: var(--navy-900); }
.section-heading { max-width: 760px; margin-bottom: 42px; }
.section-heading h2 { margin-top: 12px; font-size: clamp(2rem, 4vw, 3.15rem); }
.section-heading p { margin-top: 18px; color: var(--muted); font-size: 1.05rem; }
.section--dark .section-heading p { color: #a9bdc7; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card { padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); box-shadow: 0 12px 36px rgba(4, 16, 26, .05); }
.card-tag { display: inline-block; margin-bottom: 18px; color: var(--cyan-700); font-size: .74rem; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }
.card h3 { font-size: 1.35rem; }
.card p { margin-top: 13px; color: var(--muted); }

.split { display: grid; grid-template-columns: minmax(0, .88fr) minmax(0, 1.12fr); gap: 70px; align-items: start; }
.split h2 { margin-top: 12px; font-size: clamp(2rem, 4vw, 3rem); }
.split-copy > p { margin-top: 20px; color: var(--muted); }
.check-list { display: grid; gap: 14px; margin-top: 28px; padding: 0; list-style: none; }
.check-list li { position: relative; padding: 18px 18px 18px 52px; border-radius: 12px; background: var(--soft); }
.check-list li::before { content: "✓"; position: absolute; left: 18px; top: 18px; color: var(--cyan-700); font-weight: 1000; }

.example { padding: 34px; border: 1px solid rgba(33, 212, 232, .25); border-radius: 22px; background: var(--navy-800); }
.example-label { color: var(--cyan-400); font-size: .75rem; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }
.example h2 { margin-top: 12px; font-size: clamp(1.8rem, 3vw, 2.5rem); }
.example p { margin-top: 16px; color: #b7cbd4; }
.example-result { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 26px; }
.example-result div { padding: 16px; border-radius: 12px; background: rgba(255, 255, 255, .06); }
.example-result strong { display: block; color: var(--cyan-400); }
.example-result span { color: #b7cbd4; font-size: .88rem; }

.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: steps; }
.step { counter-increment: steps; padding: 26px; border-top: 3px solid var(--cyan-400); border-radius: 0 0 var(--radius) var(--radius); background: var(--white); box-shadow: 0 12px 34px rgba(4, 16, 26, .06); }
.step::before { content: "0" counter(steps); display: block; margin-bottom: 24px; color: var(--cyan-700); font-weight: 1000; }
.step h3 { font-size: 1.2rem; }
.step p { margin-top: 10px; color: var(--muted); font-size: .95rem; }

.related { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.related a { display: block; padding: 22px; border: 1px solid #203b4c; border-radius: 14px; color: var(--white); text-decoration: none; background: var(--navy-800); }
.related a:hover { border-color: var(--cyan-400); }
.related strong { display: block; color: var(--cyan-400); }
.related span { display: block; margin-top: 8px; color: #afc2cb; font-size: .92rem; }

.faq { display: grid; gap: 12px; max-width: 900px; }
.faq details { border: 1px solid var(--line); border-radius: 12px; background: var(--white); }
.faq summary { cursor: pointer; padding: 20px 54px 20px 22px; font-weight: 850; }
.faq details p { padding: 0 22px 22px; color: var(--muted); }

.contact-card { display: grid; grid-template-columns: 1fr auto; gap: 40px; align-items: center; padding: 44px; border-radius: 24px; color: var(--white); background: linear-gradient(135deg, var(--navy-950), var(--navy-800)); box-shadow: var(--shadow); }
.contact-card h2 { margin-top: 12px; font-size: clamp(2rem, 4vw, 3rem); }
.contact-card p { max-width: 680px; margin-top: 16px; color: #b4c8d1; }
.contact-actions { display: grid; gap: 10px; min-width: 230px; }

.site-footer { padding: 40px 0; color: #9fb4be; background: var(--navy-950); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.footer-inner p { margin-top: 10px; font-size: .85rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: 18px; }
.footer-links a { color: #c8d6dc; font-size: .88rem; }

.whatsapp-fab { position: fixed; right: 22px; bottom: 22px; z-index: 40; display: grid; place-items: center; width: 58px; height: 58px; border-radius: 50%; color: white; background: #25d366; box-shadow: 0 14px 35px rgba(0, 0, 0, .24); }
.whatsapp-fab svg { width: 30px; height: 30px; }

@media (max-width: 900px) {
  .nav-links { display: none; }
  .hero-grid, .split { grid-template-columns: 1fr; gap: 38px; }
  .hero-grid { padding: 56px 0 68px; }
  .cards, .steps { grid-template-columns: repeat(2, 1fr); }
  .related { grid-template-columns: 1fr; }
  .contact-card { grid-template-columns: 1fr; }
  .contact-actions { width: 100%; }
}

@media (max-width: 620px) {
  .container { width: min(100% - 28px, 1120px); }
  .nav { min-height: 66px; }
  .nav .button { min-height: 42px; padding: 10px 13px; font-size: .8rem; }
  .brand { font-size: .9rem; }
  .brand img { width: 31px; height: 31px; }
  .breadcrumb { padding-top: 22px; }
  .hero-grid { padding-top: 40px; }
  h1 { font-size: 2.55rem; }
  .hero-actions .button { width: 100%; }
  .hero-panel { padding: 22px; }
  .section { padding: 68px 0; }
  .cards, .steps, .example-result { grid-template-columns: 1fr; }
  .card, .step { padding: 22px; }
  .example, .contact-card { padding: 26px; }
  .footer-inner { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}