/* ==========================================================================
   Signa Data — Design System
   ========================================================================== */

:root {
  --navy-950: #060b16;
  --navy-900: #0a1220;
  --navy-800: #101c30;
  --navy-700: #17263f;
  --navy-600: #253954;
  --cyan-400: #2fe0ea;
  --cyan-300: #6eeef2;
  --cyan-600: #0891a8;
  --ink: #0b1526;
  --ink-soft: #445069;
  --muted: #64748b;
  --line: #e6ebf2;
  --paper: #ffffff;
  --paper-soft: #f6f9fc;
  --shadow-sm: 0 2px 10px rgba(10, 18, 32, 0.06);
  --shadow-md: 0 12px 32px rgba(10, 18, 32, 0.10);
  --shadow-lg: 0 24px 60px rgba(6, 11, 22, 0.18);
  --radius: 16px;
  --radius-sm: 10px;
  --maxw: 1180px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { margin: 0; line-height: 1.15; letter-spacing: -0.02em; }
p { margin: 0; }

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 28px;
}

section { position: relative; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan-600);
  margin-bottom: 16px;
}
.eyebrow::before {
  content: "";
  width: 20px;
  height: 2px;
  background: var(--cyan-400);
  display: inline-block;
}
.on-dark .eyebrow { color: var(--cyan-300); }

.section-head {
  max-width: 700px;
  margin-bottom: 48px;
}
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head h2 { font-size: clamp(28px, 3.4vw, 40px); font-weight: 800; color: var(--ink); }
.section-head p { margin-top: 14px; font-size: 17px; color: var(--ink-soft); }
.on-dark .section-head h2 { color: #fff; }
.on-dark .section-head p { color: #aab6c9; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, border-color .15s ease, color .15s ease;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--cyan-400), var(--cyan-600));
  color: var(--navy-950);
  box-shadow: 0 10px 24px rgba(47, 224, 234, 0.28);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(47, 224, 234, 0.38); }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.btn-ghost:hover { border-color: var(--cyan-600); color: var(--cyan-600); transform: translateY(-2px); }
.on-dark .btn-ghost,
.hero .btn-ghost,
.stat-banner .btn-ghost,
.page-hero .btn-ghost {
  color: #fff;
  border-color: rgba(255,255,255,0.4);
  background: rgba(255,255,255,0.04);
}
.on-dark .btn-ghost:hover,
.hero .btn-ghost:hover,
.stat-banner .btn-ghost:hover,
.page-hero .btn-ghost:hover {
  border-color: var(--cyan-300);
  color: var(--cyan-300);
  background: rgba(47,224,234,0.08);
}
.btn-block { width: 100%; }
.btn-sm { padding: 10px 18px; font-size: 13px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(6, 11, 22, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 96px;
}
.brand { display: flex; align-items: center; gap: 10px; min-width: 0; flex-shrink: 1; }
.brand img { height: auto; width: auto; max-height: 58px; max-width: 100%; display: block; }
.brand-word { font-size: 19px; font-weight: 800; letter-spacing: 0.01em; color: #fff; }
.brand-word b { color: var(--cyan-300); font-weight: 800; }

.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  padding: 10px 16px;
  font-size: 14.5px;
  font-weight: 600;
  color: #cbd5e1;
  border-radius: 999px;
  transition: all .15s ease;
}
.nav-links a:hover { color: #fff; background: rgba(255,255,255,0.06); }
.nav-links a.active { color: var(--navy-950); background: var(--cyan-300); }

.nav-actions { display: flex; align-items: center; gap: 12px; }
.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 10px;
  width: 42px;
  height: 42px;
  color: #fff;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--header-h, 78px);
  left: 0; right: 0; bottom: 0;
  background: var(--navy-950);
  z-index: 99;
  padding: 20px 24px 40px;
  overflow-y: auto;
}
.mobile-menu.open { display: block; }
.mobile-menu a {
  display: block;
  padding: 16px 4px;
  font-size: 19px;
  font-weight: 700;
  color: #fff;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.mobile-menu .btn { margin-top: 24px; }

/* ---------- Hero ---------- */
.hero {
  background: radial-gradient(ellipse 900px 500px at 82% -10%, rgba(47,224,234,0.16), transparent 60%), linear-gradient(180deg, var(--navy-950), var(--navy-900));
  color: #fff;
  padding: 96px 0 110px;
  overflow: hidden;
  position: relative;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(ellipse 800px 500px at 70% 20%, black, transparent 75%);
  pointer-events: none;
}
.hero-grid {
  position: relative;
  z-index: 2;
  max-width: 780px;
  margin: 0 auto;
  text-align: center;
}
.hero h1 {
  font-size: clamp(34px, 4.6vw, 56px);
  font-weight: 800;
  color: #fff;
}
.hero h1 span { color: var(--cyan-300); }
.hero .lede {
  margin: 22px auto 0;
  font-size: 18px;
  color: #b6c1d6;
  max-width: 560px;
}
.hero .cta-row { margin-top: 34px; display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; }
.hero .stat-row { margin-top: 56px; display: flex; gap: 40px; flex-wrap: wrap; justify-content: center; }
.hero .stat { text-align: center; }
.hero .stat b { display: block; font-size: 28px; font-weight: 800; color: var(--cyan-300); }
.hero .stat span { font-size: 13px; color: #8b99b3; }

/* ---------- Logo strip ---------- */
.logo-strip { padding: 30px 0; border-bottom: 1px solid var(--line); }
.logo-strip .container { display: flex; align-items: center; gap: 28px; flex-wrap: wrap; justify-content: space-between; }
.logo-strip .tag { font-size: 13px; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
.badge-row { display: flex; gap: 12px; flex-wrap: wrap; }
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 700; color: var(--ink-soft);
  padding: 9px 16px; border-radius: 999px; border: 1px solid var(--line); background: var(--paper-soft);
}
.badge svg { width: 16px; height: 16px; color: var(--cyan-600); }

/* ---------- Generic sections ---------- */
.section { padding: 96px 0; }
.section.tight { padding: 72px 0; }
.section.on-dark { background: var(--navy-950); color: #fff; }
.section.alt { background: var(--paper-soft); }

/* ---------- Cards grid ---------- */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: rgba(47,224,234,0.4); }
.card .icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(47,224,234,0.14), rgba(8,145,168,0.08));
  display: flex; align-items: center; justify-content: center;
  color: var(--cyan-600);
  margin-bottom: 18px;
}
.card .icon svg { width: 24px; height: 24px; }
.card h3 { font-size: 18px; font-weight: 800; margin-bottom: 10px; }
.card p { font-size: 14.5px; color: var(--ink-soft); }

/* Generic checklist used inside cards (e.g. Cobrança x Televendas) */
.benefits { margin-top: 4px; }
.benefits li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  font-size: 14.5px;
  color: var(--ink);
}
.benefits svg {
  width: 18px;
  height: 18px;
  flex: none;
  margin-top: 2px;
  color: var(--cyan-600);
}

.card.on-dark-card {
  background: var(--navy-800);
  border-color: var(--navy-600);
}
.card.on-dark-card h3 { color: #fff; }
.card.on-dark-card p { color: #9aa7bd; }
.card.on-dark-card .icon { background: rgba(47,224,234,0.12); color: var(--cyan-300); }

/* problem list */
.problem-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 8px; }
.problem-item {
  padding: 24px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  text-align: left;
  background: var(--paper);
}
.problem-item .n {
  display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; border-radius: 50%;
  background: var(--navy-950); color: var(--cyan-300);
  font-weight: 800; font-size: 13px; margin-bottom: 14px;
}
.problem-item h4 { font-size: 15.5px; font-weight: 800; margin-bottom: 6px; }
.problem-item p { font-size: 13.5px; color: var(--muted); }

/* Steps / process */
.steps-row {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 14px;
  margin-top: 8px;
}
.step-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 18px 14px;
  text-align: center;
}
.step-card .n {
  width: 30px; height: 30px; margin: 0 auto 12px;
  border-radius: 50%; background: var(--cyan-400); color: var(--navy-950);
  display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 13px;
}
.step-card h4 { font-size: 13.5px; font-weight: 800; margin-bottom: 6px; }
.step-card p { font-size: 11.5px; color: var(--muted); line-height: 1.4; }

.outcomes-row {
  margin-top: 28px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  padding: 22px;
  border-radius: var(--radius-sm);
  background: var(--paper-soft);
  border: 1px solid var(--line);
}
.outcome {
  display: flex; align-items: center; gap: 10px;
  font-size: 14px; font-weight: 700; color: var(--ink);
  flex: 1; min-width: 200px;
}
.outcome svg { width: 20px; height: 20px; color: var(--cyan-600); flex: none; }

/* compare table */
.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 8px;
}
.compare .col {
  border-radius: var(--radius);
  padding: 30px;
  border: 1px solid var(--line);
}
.compare .col.old { background: var(--paper-soft); }
.compare .col.new { background: var(--navy-950); color: #fff; border-color: var(--navy-700); }
.compare h4 { font-size: 17px; font-weight: 800; margin-bottom: 20px; }
.compare .col.old h4 { color: var(--ink-soft); }
.compare .col.new h4 { color: var(--cyan-300); }
.compare li { display: flex; gap: 12px; padding: 11px 0; font-size: 14.5px; border-top: 1px solid rgba(0,0,0,0.06); }
.compare .col.new li { border-top: 1px solid rgba(255,255,255,0.08); color: #d7deec; }
.compare li:first-child { border-top: none; }
.compare .col.old li { color: var(--ink-soft); }
.compare .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); margin-top: 6px; flex: none; }
.compare .col.new .dot { background: var(--cyan-300); }

/* quote / callout */
.callout {
  margin-top: 28px;
  padding: 22px 26px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(47,224,234,0.10), rgba(8,145,168,0.06));
  border: 1px solid rgba(47,224,234,0.3);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}
.callout b { color: var(--cyan-600); }

/* Testimonials */
.testi-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
}
.testi-card p.quote { font-size: 15.5px; color: var(--ink); font-style: italic; margin-bottom: 22px; }
.testi-who { display: flex; align-items: center; gap: 12px; }
.testi-who .avatar {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--navy-950); color: var(--cyan-300);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 15px; flex: none;
}
.testi-who b { display: block; font-size: 14.5px; }
.testi-who span { font-size: 12.5px; color: var(--muted); }

/* stat banner */
.stat-banner {
  border-radius: 24px;
  background: linear-gradient(120deg, var(--navy-950) 55%, var(--navy-800));
  color: #fff;
  padding: 56px;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 40px;
  align-items: center;
}
.stat-banner .big { font-size: 72px; font-weight: 800; color: var(--cyan-300); line-height: 1; }
.stat-banner .big + p { margin-top: 10px; font-size: 16px; color: #c3cddd; font-weight: 700; }
.stat-banner .desc { font-size: 15px; color: #aab6c9; }
.stat-banner .desc b { color: #fff; }

/* CTA band */
.cta-band {
  border-radius: 24px;
  background: linear-gradient(135deg, var(--cyan-400), var(--cyan-600));
  padding: 56px;
  text-align: center;
  color: var(--navy-950);
}
.cta-band h2 { font-size: clamp(24px, 3vw, 34px); font-weight: 800; }
.cta-band p { margin-top: 12px; font-size: 16px; color: rgba(6,11,22,0.75); }
.cta-band .cta-row { justify-content: center; margin-top: 26px; }
.cta-band .btn-ghost { border-color: rgba(6,11,22,0.3); color: var(--navy-950); }
.cta-band .btn-primary { background: var(--navy-950); color: #fff; box-shadow: none; }
.cta-band .btn-primary:hover { background: var(--navy-800); }

/* Footer */
.site-footer { background: var(--navy-950); color: #b6c1d6; padding: 64px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; }
.footer-grid h5 { color: #fff; font-size: 14px; font-weight: 800; margin-bottom: 16px; text-transform: uppercase; letter-spacing: .05em; }
.footer-grid p, .footer-grid a { font-size: 14px; color: #8b99b3; }
.footer-grid ul li { margin-bottom: 10px; }
.footer-grid ul a:hover { color: var(--cyan-300); }
.footer-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-brand img { height: auto; width: auto; max-height: 36px; max-width: 100%; display: block; }
.footer-bottom {
  margin-top: 48px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.08);
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
  font-size: 13px; color: #6b7a94;
}
.footer-address { margin-top: 12px; font-size: 14px; color: #8b99b3; }
.social-row { display: flex; gap: 10px; margin-top: 20px; }
.social-row a {
  width: 36px; height: 36px; border-radius: 50%; border: 1px solid rgba(255,255,255,0.14);
  display: flex; align-items: center; justify-content: center; color: #cbd5e1;
}
.social-row a:hover { background: var(--cyan-400); color: var(--navy-950); border-color: var(--cyan-400); }

/* Page hero (inner pages) */
.page-hero {
  background: linear-gradient(180deg, var(--navy-950), var(--navy-900));
  color: #fff;
  padding: 72px 0 84px;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(ellipse 700px 400px at 85% 10%, black, transparent 75%);
}
.page-hero .container { position: relative; z-index: 2; }
.breadcrumb { font-size: 13.5px; color: #8b99b3; margin-bottom: 18px; font-weight: 600; }
.breadcrumb b { color: var(--cyan-300); }
.page-hero h1 { font-size: clamp(30px, 4vw, 46px); font-weight: 800; }
.page-hero p { margin-top: 16px; font-size: 17px; color: #b6c1d6; max-width: 640px; }

/* Product cards — standardized layout for every product */
.products-list { display: flex; flex-direction: column; gap: 28px; }
.product-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  overflow: hidden;
  transition: transform .25s ease, box-shadow .25s ease;
}
.product-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }

.product-head-band {
  position: relative;
  background: linear-gradient(135deg, var(--navy-950) 45%, var(--navy-800));
  padding: 34px 40px;
  overflow: hidden;
}
.product-head-band::before {
  content: "";
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: radial-gradient(ellipse 520px 220px at 90% 0%, black, transparent 75%);
  pointer-events: none;
}
.product-head-band::after {
  content: "";
  position: absolute; top: -60px; right: -60px;
  width: 220px; height: 220px; border-radius: 50%;
  background: radial-gradient(circle, rgba(47,224,234,0.28), transparent 70%);
  pointer-events: none;
}
.product-card .product-tag-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  position: relative;
  z-index: 1;
}
.product-tag {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px; border-radius: 999px; background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.18); font-size: 12px; font-weight: 800; color: var(--cyan-300);
  text-transform: uppercase; letter-spacing: .05em;
  width: fit-content;
}
.product-tag.badge-new { background: var(--cyan-400); color: var(--navy-950); border-color: var(--cyan-400); }
.product-head {
  display: flex;
  align-items: center;
  gap: 18px;
  position: relative;
  z-index: 1;
}
.product-icon {
  width: 58px; height: 58px; flex: none;
  border-radius: 14px;
  background: rgba(47,224,234,0.16);
  color: var(--cyan-300);
  display: flex; align-items: center; justify-content: center;
  transition: transform .4s cubic-bezier(.34,1.56,.64,1);
}
.product-icon svg { width: 28px; height: 28px; }
.product-card.in .product-icon { transform: scale(1.08) rotate(-4deg); }
.product-card h3 { font-size: 22px; font-weight: 800; color: #fff; }
.product-card .product-body { padding: 32px 40px 40px; }
.product-card .desc {
  font-size: 15.5px; color: var(--ink-soft);
  max-width: 760px;
  margin-bottom: 28px;
}
.product-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}
.product-cols h4 {
  font-size: 12.5px; font-weight: 800; text-transform: uppercase; letter-spacing: .06em;
  color: var(--cyan-600); margin-bottom: 14px;
}
.product-cols .benefits li,
.product-cols .specs li {
  display: flex; gap: 10px; padding: 8px 0; font-size: 14.5px; color: var(--ink);
  opacity: 0;
  transform: translateX(-10px);
  transition: opacity .45s ease, transform .45s ease;
}
.product-cols .benefits svg { width: 17px; height: 17px; color: var(--cyan-600); flex: none; margin-top: 2px; }
.product-cols .specs li { color: var(--ink-soft); }
.product-cols .specs li::before {
  content: "";
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--cyan-600); flex: none; margin-top: 8px;
}
.product-card.in .product-cols li { opacity: 1; transform: none; }
.product-card.in .product-cols li:nth-child(1) { transition-delay: .05s; }
.product-card.in .product-cols li:nth-child(2) { transition-delay: .16s; }
.product-card.in .product-cols li:nth-child(3) { transition-delay: .27s; }
.product-card.in .product-cols li:nth-child(4) { transition-delay: .38s; }

/* Contact page */
.contact-layout { display: grid; grid-template-columns: 1.3fr 1fr; gap: 32px; align-items: start; }

.contact-form-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 40px;
}
.contact-form-card h3 { font-size: 22px; font-weight: 800; margin-bottom: 8px; }
.contact-form-card > p { font-size: 15px; color: var(--ink-soft); margin-bottom: 26px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-field { margin-bottom: 18px; }
.form-field label {
  display: block; font-size: 13px; font-weight: 700; color: var(--ink);
  margin-bottom: 7px;
}
.form-field input, .form-field textarea {
  width: 100%;
  font-family: var(--font);
  font-size: 14.5px;
  color: var(--ink);
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--paper-soft);
  transition: border-color .15s ease, box-shadow .15s ease;
  resize: vertical;
}
.form-field input:focus, .form-field textarea:focus {
  outline: none;
  border-color: var(--cyan-400);
  box-shadow: 0 0 0 3px rgba(47,224,234,0.18);
  background: var(--paper);
}
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.form-status {
  margin-top: 16px;
  font-size: 14px;
  font-weight: 600;
  min-height: 20px;
}
.form-status.success { color: #0a8a5f; }
.form-status.error { color: #c0392b; }

.contact-side { display: flex; flex-direction: column; gap: 20px; }
.contact-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.contact-card.whatsapp { background: linear-gradient(135deg, rgba(37,211,102,0.08), rgba(37,211,102,0.02)); border-color: rgba(37,211,102,0.35); }
.contact-card .icon {
  width: 48px; height: 48px; border-radius: 14px; flex: none;
  background: var(--navy-950); color: var(--cyan-300);
  display: flex; align-items: center; justify-content: center;
}
.contact-card.whatsapp .icon { background: #25d366; color: #fff; }
.contact-card .icon svg { width: 22px; height: 22px; }
.contact-card h4 { font-size: 16px; font-weight: 800; margin-bottom: 5px; }
.contact-card p { font-size: 14px; color: var(--ink-soft); margin-bottom: 12px; }
.btn-whatsapp { background: #25d366; color: #fff; box-shadow: 0 10px 20px rgba(37,211,102,0.28); }
.btn-whatsapp:hover { background: #1fb958; transform: translateY(-2px); }

.trust-strip {
  display: flex; flex-wrap: wrap; gap: 10px;
  padding: 20px 22px;
  border-radius: var(--radius);
  background: var(--paper-soft);
  border: 1px solid var(--line);
}
.trust-strip .badge { background: var(--paper); }

/* Reveal animation */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }

.product-card.reveal {
  opacity: 0;
  transform: translateY(46px) scale(.97);
  transition: opacity .7s cubic-bezier(.22,.9,.32,1), transform .7s cubic-bezier(.22,.9,.32,1), box-shadow .25s ease;
}
.product-card.reveal.in { opacity: 1; transform: translateY(0) scale(1); }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-2 { grid-template-columns: 1fr; }
  .problem-list { grid-template-columns: repeat(2, 1fr); }
  .steps-row { grid-template-columns: repeat(4, 1fr); }
  .compare { grid-template-columns: 1fr; }
  .stat-banner { grid-template-columns: 1fr; padding: 36px; text-align: center; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .product-cols { grid-template-columns: 1fr; gap: 20px; }
  .contact-layout { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .section { padding: 64px 0; }
  .grid-4, .grid-3 { grid-template-columns: 1fr; }
  .problem-list { grid-template-columns: 1fr; }
  .steps-row { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
  .product-head-band { padding: 26px 22px; }
  .product-card .product-body { padding: 26px 22px 32px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .contact-form-card { padding: 26px 22px; }
  .product-head { gap: 14px; }
  .cta-band, .stat-banner { padding: 32px 22px; }
  .hero { padding: 64px 0 72px; }
  .contact-card { flex-direction: column; }
  .site-header .container {
    height: auto;
    flex-wrap: wrap;
    justify-content: center;
    row-gap: 12px;
    padding-top: 16px;
    padding-bottom: 16px;
  }
  .brand { order: 1; width: 100%; justify-content: center; }
  .nav-actions { order: 2; width: 100%; justify-content: center; }
  .brand img { max-height: 48px; }
  .nav-actions .btn { padding: 9px 14px; font-size: 12.5px; }
}
@media (max-width: 400px) {
  .brand img { max-height: 40px; }
}