:root {
  --bg: #ffffff;
  --bg-soft: #f4f8fc;
  --bg-muted: #eef4fa;
  --primary: #1a56db;
  --primary-hover: #1648c0;
  --primary-soft: #e8f0fe;
  --primary-light: #3b82f6;
  --text: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --border: #e2e8f0;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow: 0 8px 30px rgba(26, 86, 219, 0.08);
  --shadow-lg: 0 20px 50px rgba(26, 86, 219, 0.12);
  --wa: #25d366;
  --wa-hover: #1fb855;
  --radius: 16px;
  --radius-lg: 24px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --header-h: 72px;
  --platform-color: #003580;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; overflow-x: clip; }
body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
img { max-width: 100%; display: block; }
a { color: inherit; }

.container { width: min(1140px, 92%); margin: 0 auto; }

.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.3s;
}
.header.scrolled { box-shadow: var(--shadow-sm); }
.header__inner {
  height: 100%; display: flex; align-items: center;
  justify-content: space-between; gap: 1rem;
}
.logo {
  font-weight: 700; font-size: 1.125rem;
  text-decoration: none; color: var(--text);
  letter-spacing: -0.02em;
}
.logo span { color: var(--primary); }
.nav { display: none; gap: 1.35rem; list-style: none; }
.nav a {
  text-decoration: none; font-size: 0.875rem; font-weight: 500;
  color: var(--text-secondary); transition: color 0.2s;
}
.nav a:hover { color: var(--primary); }
.header__actions { display: flex; align-items: center; gap: 0.75rem; }
.burger {
  display: flex; width: 44px; height: 44px; border: 1px solid var(--border);
  border-radius: 12px; background: var(--bg); align-items: center;
  justify-content: center; cursor: pointer; color: var(--text);
}
@media (min-width: 960px) {
  .nav { display: flex; }
  .burger { display: none; }
}

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 0.5rem; padding: 0.875rem 1.5rem;
  font-family: inherit; font-size: 0.9375rem; font-weight: 600;
  border-radius: 12px; text-decoration: none; border: none;
  cursor: pointer; transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}
.btn:active { transform: scale(0.98); }
.btn--wa {
  background: var(--wa); color: #fff;
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.35);
}
.btn--wa:hover {
  background: var(--wa-hover);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
}
.btn--primary {
  background: var(--primary); color: #fff;
  box-shadow: 0 4px 14px rgba(26, 86, 219, 0.25);
}
.btn--primary:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(26, 86, 219, 0.3);
}
.btn--outline {
  background: var(--bg); color: var(--primary);
  border: 1px solid var(--border);
}
.btn--outline:hover {
  background: var(--primary-soft); border-color: var(--primary-light);
}
.btn--ghost-light {
  background: rgba(255, 255, 255, 0.12); color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.35);
}
.btn--ghost-light:hover {
  background: rgba(255, 255, 255, 0.2); border-color: rgba(255, 255, 255, 0.55);
}
.btn--sm { padding: 0.625rem 1.125rem; font-size: 0.8125rem; }
.btn--lg { padding: 1.05rem 2rem; font-size: 1rem; }
.btn svg { width: 18px; height: 18px; flex-shrink: 0; }

.mobile-menu {
  display: none; position: fixed; top: var(--header-h); left: 0; right: 0;
  background: var(--bg); border-bottom: 1px solid var(--border);
  padding: 1.25rem; flex-direction: column; gap: 0.5rem; z-index: 99;
}
.mobile-menu.open { display: flex; }
.mobile-menu.open {
  max-height: calc(100dvh - var(--header-h));
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.mobile-menu a {
  padding: 0.75rem 1rem; text-decoration: none; font-weight: 500;
  color: var(--text-secondary); border-radius: 10px;
}
.mobile-menu a:hover { background: var(--bg-soft); color: var(--primary); }

section { padding: clamp(4rem, 8vw, 6rem) 0; }
.section-label {
  display: inline-block; font-size: 0.75rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--primary); margin-bottom: 0.75rem;
}
.section-title {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700; letter-spacing: -0.03em;
  line-height: 1.2; margin-bottom: 1rem;
}
.section-desc {
  font-size: 1.0625rem; color: var(--text-secondary);
  max-width: 640px; line-height: 1.7;
}
.section-head { margin-bottom: 3rem; }

.breadcrumb {
  display: flex; flex-wrap: wrap; gap: 0.35rem 0.5rem;
  font-size: 0.8125rem; color: var(--text-muted); margin-bottom: 1.25rem;
}
.breadcrumb a {
  color: var(--text-secondary); text-decoration: none;
}
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb span[aria-hidden="true"] { color: var(--text-muted); }

.landing-hero {
  padding-top: calc(var(--header-h) + 2.5rem);
  padding-bottom: 4rem;
  background: linear-gradient(180deg, var(--bg-soft) 0%, var(--bg) 100%);
}
.landing-hero__grid {
  display: grid; gap: 2.5rem; align-items: start;
}
@media (min-width: 900px) {
  .landing-hero__grid { grid-template-columns: 1.1fr 0.9fr; }
}
.landing-hero__badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.4rem 0.9rem; background: var(--primary-soft);
  border-radius: 100px; font-size: 0.8125rem; font-weight: 600;
  color: var(--primary); margin-bottom: 1.25rem;
}
.landing-hero__badge::before {
  content: ''; width: 6px; height: 6px; background: var(--platform-color, var(--primary));
  border-radius: 50%;
}
.landing-hero__title {
  font-size: clamp(1.875rem, 4.2vw, 2.65rem);
  font-weight: 700; letter-spacing: -0.03em;
  line-height: 1.12; margin-bottom: 1.25rem;
  text-wrap: balance;
}
.landing-hero__title em {
  font-style: normal; color: var(--platform-color, var(--primary));
}
.landing-hero__subtitle {
  font-size: 1.125rem; color: var(--text-secondary);
  margin-bottom: 2rem; max-width: 560px; line-height: 1.7;
}
.landing-hero__btns { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.landing-hero__trust {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem; margin-top: 1.75rem; max-width: 520px;
}
.landing-hero__trust-item {
  padding: 0.85rem 0.95rem; background: var(--bg);
  border: 1px solid var(--border); border-radius: 12px;
  box-shadow: var(--shadow-sm);
}
.landing-hero__trust-item b {
  display: block; font-size: 1.0625rem; font-weight: 700;
  color: var(--primary); margin-bottom: 0.2rem;
}
.landing-hero__trust-item span {
  display: block; font-size: 0.6875rem; font-weight: 500;
  color: var(--text-muted);
}

.landing-panel {
  background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 1.75rem;
  box-shadow: var(--shadow-lg);
}
.landing-panel__brand {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 56px; padding: 0.75rem 1.25rem;
  background: var(--platform-color, var(--primary));
  color: #fff; font-weight: 700; font-size: 1.125rem;
  border-radius: 12px; margin-bottom: 1.25rem;
}
.landing-panel__list {
  list-style: none; display: flex; flex-direction: column; gap: 0.75rem;
}
.landing-panel__list li {
  display: flex; gap: 0.65rem; font-size: 0.9375rem;
  color: var(--text-secondary); line-height: 1.45;
}
.landing-panel__list li::before {
  content: '✓'; flex-shrink: 0;
  width: 20px; height: 20px; display: flex; align-items: center; justify-content: center;
  background: var(--primary-soft); color: var(--primary);
  border-radius: 50%; font-size: 0.625rem; font-weight: 800;
}

.prose { max-width: 720px; }
.prose p {
  font-size: 1.0625rem; color: var(--text-secondary);
  line-height: 1.75; margin-bottom: 1.25rem;
}
.prose p:last-child { margin-bottom: 0; }
.prose h2 {
  font-size: 1.375rem; font-weight: 700; letter-spacing: -0.02em;
  margin: 2rem 0 1rem; color: var(--text);
}
.prose ul {
  margin: 0 0 1.25rem 1.25rem; color: var(--text-secondary);
}
.prose li { margin-bottom: 0.5rem; line-height: 1.65; }

.cards-4 {
  display: grid; gap: 1.25rem;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) { .cards-4 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .cards-4 { grid-template-columns: repeat(4, 1fr); } }

.card {
  padding: 1.5rem; background: var(--bg);
  border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.card h3 {
  font-size: 1rem; font-weight: 700; margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}
.card p {
  font-size: 0.9375rem; color: var(--text-secondary); line-height: 1.55;
}

.steps {
  display: grid; gap: 1rem;
}
@media (min-width: 768px) { .steps { grid-template-columns: repeat(5, 1fr); } }
.step {
  padding: 1.35rem; background: var(--bg-soft);
  border: 1px solid var(--border); border-radius: var(--radius);
}
.step__num {
  display: inline-flex; width: 28px; height: 28px;
  align-items: center; justify-content: center;
  background: var(--primary); color: #fff;
  border-radius: 8px; font-size: 0.8125rem; font-weight: 700;
  margin-bottom: 0.75rem;
}
.step h3 { font-size: 0.9375rem; font-weight: 700; margin-bottom: 0.4rem; }
.step p { font-size: 0.8125rem; color: var(--text-secondary); line-height: 1.5; }

.services-grid {
  display: grid; gap: 1.25rem;
}
@media (min-width: 768px) { .services-grid { grid-template-columns: repeat(2, 1fr); } }
.service-card {
  padding: 1.5rem; background: var(--bg);
  border: 1px solid var(--border); border-radius: var(--radius);
}
.service-card h3 { font-size: 1.0625rem; font-weight: 700; margin-bottom: 0.5rem; }
.service-card p { font-size: 0.9375rem; color: var(--text-secondary); margin-bottom: 1rem; }
.service-card .price {
  font-size: 1.125rem; font-weight: 700; color: var(--primary);
}

.case-box {
  padding: 1.75rem; background: linear-gradient(135deg, #f0fdf4 0%, var(--bg) 55%);
  border: 1px solid #bbf7d0; border-radius: var(--radius);
}
.case-box__label {
  font-size: 0.6875rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.06em; color: #047857; margin-bottom: 0.5rem;
}
.case-box h3 { font-size: 1.125rem; font-weight: 700; margin-bottom: 0.75rem; }
.case-box p { font-size: 0.9375rem; color: var(--text-secondary); line-height: 1.6; }

.faq__grid {
  display: grid; gap: 2.5rem;
}
@media (min-width: 900px) {
  .faq__grid { grid-template-columns: 0.9fr 1.1fr; align-items: start; }
}
.faq-item {
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--bg); overflow: hidden;
}
.faq-item + .faq-item { margin-top: 0.75rem; }
.faq-item summary {
  list-style: none; cursor: pointer; padding: 1.15rem 1.25rem;
  font-weight: 600; font-size: 0.9375rem;
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+'; font-size: 1.25rem; font-weight: 400; color: var(--primary);
}
.faq-item[open] summary::after { content: '−'; }
.faq-item__body {
  padding: 0 1.25rem 1.15rem;
  font-size: 0.9375rem; color: var(--text-secondary); line-height: 1.65;
}

.cta {
  background: var(--primary); color: #fff; text-align: center;
}
.cta .section-title { color: #fff; max-width: 640px; margin: 0 auto 1rem; }
.cta .section-desc { color: rgba(255,255,255,0.85); margin: 0 auto 2rem; max-width: 520px; }
.cta__actions {
  display: flex; flex-wrap: wrap; gap: 0.75rem;
  justify-content: center; align-items: center;
}

.back-home {
  background: var(--bg-soft); text-align: center;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.back-home p {
  max-width: 560px; margin: 0 auto 1.5rem;
  color: var(--text-secondary); line-height: 1.65;
}

.related-links {
  display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.5rem;
}
.related-links a {
  font-size: 0.8125rem; font-weight: 600; text-decoration: none;
  padding: 0.45rem 0.85rem; border-radius: 100px;
  background: var(--bg-soft); border: 1px solid var(--border);
  color: var(--text-secondary);
}
.related-links a:hover {
  border-color: var(--primary-light); color: var(--primary);
}
.related-links a.is-active {
  background: var(--primary-soft); border-color: var(--primary-light);
  color: var(--primary);
}

.footer {
  background: var(--text); color: rgba(255,255,255,0.75);
  padding: 3rem 0 2rem; font-size: 0.875rem;
}
.footer__grid {
  display: grid; gap: 2rem;
  grid-template-columns: 1fr;
  margin-bottom: 2.5rem;
}
@media (min-width: 700px) {
  .footer__grid { grid-template-columns: 1.5fr 1fr 1fr 1fr; }
}
.footer__brand { font-size: 1.25rem; font-weight: 700; color: #fff; margin-bottom: 0.75rem; }
.footer__brand span { color: var(--primary-light); }
.footer__links { list-style: none; }
.footer__links li { margin-bottom: 0.5rem; }
.footer__links a {
  color: rgba(255,255,255,0.75); text-decoration: none; transition: color 0.2s;
}
.footer__links a:hover { color: #fff; }
.footer__bottom {
  padding-top: 2rem; border-top: 1px solid rgba(255,255,255,0.1);
  text-align: center; font-size: 0.8125rem; color: rgba(255,255,255,0.5);
}

.fab-wa {
  position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 90;
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--wa); color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.45);
  text-decoration: none; transition: transform 0.2s, box-shadow 0.2s;
}
.fab-wa:hover {
  transform: scale(1.06);
  box-shadow: 0 8px 28px rgba(37, 211, 102, 0.5);
}
.fab-wa svg { width: 28px; height: 28px; }

@media (max-width: 767px) {
  section { padding: clamp(3rem, 7vw, 4rem) 0; }
  .section-head { margin-bottom: 2rem; }
  .landing-hero { padding-top: calc(var(--header-h) + 1.75rem); }
  .landing-hero__subtitle { font-size: 1rem; max-width: none; }
  .landing-hero__btns { flex-direction: column; }
  .landing-hero__btns .btn { width: 100%; }
  .landing-hero__trust { max-width: none; }
  .cta__actions { flex-direction: column; align-items: stretch; }
  .cta__actions .btn { width: 100%; }
  .fab-wa {
    bottom: max(1rem, env(safe-area-inset-bottom, 0px));
    right: max(1rem, env(safe-area-inset-right, 0px));
  }
}