/* ─── Design tokens (SendYou) ───────────────────────────── */
:root {
  --color-primary: #2563EB;
  --color-primary-dark: #1D4ED8;
  --color-on-primary: #FFFFFF;
  --color-secondary: #6366F1;
  --color-accent: #059669;
  --color-accent-dark: #047857;
  --color-background: #FFFFFF;
  --color-foreground: #0F172A;
  --color-muted: #F1F5FD;
  --color-warm: #F6F8FE;
  --color-border: #E4ECFC;
  --color-destructive: #DC2626;
  --color-ring: #2563EB;
  --color-dark-bg: #0B1220;
  --color-dark-fg: #E7ECFB;
  --color-dark-muted: #94A3B8;

  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;

  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 48px;
  --space-6: 64px;
  --space-7: 96px;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;

  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 48px rgba(37, 99, 235, 0.16);

  --transition: 200ms ease;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-foreground);
  background: var(--color-background);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { line-height: 1.2; margin: 0 0 var(--space-2); font-weight: 700; }
h1 { font-size: clamp(2.1rem, 4vw + 1rem, 3.4rem); }
h2 { font-size: clamp(1.6rem, 2.4vw + 1rem, 2.3rem); }
h3 { font-size: 1.125rem; }
p { margin: 0 0 var(--space-2); color: #334155; }
a { color: var(--color-primary); }
em { font-style: normal; color: var(--color-accent); }

.container { max-width: 1180px; margin: 0 auto; padding: 0 var(--space-3); }

/* ─── Scroll reveal (only when JS confirms it can un-hide content) ── */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 600ms cubic-bezier(.16,.8,.32,1), transform 600ms cubic-bezier(.16,.8,.32,1);
  transition-delay: calc(var(--i, 0) * 80ms);
  will-change: opacity, transform;
}
.js [data-reveal].in-view { opacity: 1; transform: none; }

/* ─── Glow blobs (decorative) ────────────────────────────── */
.glow-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.55;
  pointer-events: none;
  z-index: -1;
  animation: float 14s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-4%, 6%) scale(1.08); }
}
@media (prefers-reduced-motion: reduce) {
  .glow-blob { animation: none; }
}

a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 3px solid var(--color-ring);
  outline-offset: 2px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-1) var(--space-2);
  z-index: 100;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; }

/* ─── Nav ────────────────────────────────────────────────── */
.navwrap {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.navwrap.scrolled { border-color: var(--color-border); box-shadow: var(--shadow-sm); }

.nav {
  max-width: 1180px;
  margin: 0 auto;
  padding: var(--space-2) var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.logo { display: flex; align-items: center; gap: 8px; text-decoration: none; margin-right: auto; }
.logo img { display: block; height: 32px; width: auto; }
.logo-fallback {
  display: none;
  font-weight: 800;
  font-size: 1.25rem;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.links { display: none; gap: var(--space-3); }
.links a { position: relative; color: var(--color-foreground); text-decoration: none; font-weight: 500; font-size: 0.95rem; transition: color var(--transition); padding-bottom: 4px; }
.links a:hover { color: var(--color-primary); }
.links a::after {
  content: ''; position: absolute; left: 0; right: 100%; bottom: 0; height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transition: right var(--transition);
  border-radius: 2px;
}
.links a:hover::after, .links a.active::after { right: 0; }
.links a.active { color: var(--color-primary); }

.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 var(--space-3);
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  color: #fff;
  font-weight: 600;
  text-decoration: none;
  font-size: 0.95rem;
  transition: background var(--transition), transform var(--transition);
  cursor: pointer;
}
.cta:hover { background: var(--color-accent-dark); transform: translateY(-1px); }
.cta-nav { display: none; }

.burger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--color-foreground);
  cursor: pointer;
}

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: #fff;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-3);
  transform: translateX(100%);
  transition: transform var(--transition);
}
.mobile-menu.open { transform: translateX(0); }
.mobile-close { align-self: flex-end; width: 44px; height: 44px; border: none; background: var(--color-muted); border-radius: var(--radius-sm); font-size: 1.1rem; cursor: pointer; }
.mobile-menu a { font-size: 1.25rem; color: var(--color-foreground); text-decoration: none; font-weight: 600; padding: var(--space-1) 0; }
.mobile-cta { text-align: center; margin-top: var(--space-2); }
body.menu-open { overflow: hidden; }

/* ─── Buttons ────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 var(--space-4);
  border-radius: var(--radius-sm);
  font-weight: 700;
  text-decoration: none;
  font-size: 1rem;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  cursor: pointer;
  border: none;
}
.btn-primary { background: var(--color-accent); color: #fff; box-shadow: var(--shadow-md); }
.btn-primary:hover { background: var(--color-accent-dark); transform: translateY(-2px); }
.btn-ghost { background: transparent; color: var(--color-foreground); border: 1px solid var(--color-border); }
.btn-ghost:hover { border-color: var(--color-primary); color: var(--color-primary); }
.btn-lg { min-height: 56px; padding: 0 var(--space-5); font-size: 1.05rem; }

/* ─── Hero ───────────────────────────────────────────────── */
.hero { position: relative; overflow: hidden; padding: var(--space-7) 0 var(--space-6); }
.hero-grad {
  position: absolute; inset: -20% -10% auto -10%; height: 140%;
  background: radial-gradient(60% 60% at 20% 20%, rgba(37,99,235,0.14), transparent 70%),
              radial-gradient(50% 50% at 90% 10%, rgba(5,150,105,0.14), transparent 70%);
  z-index: -1;
}
.hero-layout { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: var(--space-6); align-items: center; }
.eyebrow { color: var(--color-primary); font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; font-size: 0.8rem; margin: 0 0 var(--space-1); }
.hero-sub { font-size: 1.1rem; max-width: 46ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-2); margin: var(--space-3) 0; }
.trust-bar { list-style: none; display: flex; flex-wrap: wrap; gap: var(--space-3); padding: 0; margin: var(--space-3) 0 0; }
.trust-bar li { display: flex; align-items: center; gap: 6px; font-size: 0.85rem; color: #475569; font-weight: 600; }
.trust-bar svg { color: var(--color-accent); flex-shrink: 0; }

.hero-visual { display: flex; justify-content: center; }
.phone-mock {
  width: 100%; max-width: 320px; min-height: 340px;
  background: linear-gradient(160deg, var(--color-primary), var(--color-accent));
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  display: flex; flex-direction: column; justify-content: center; gap: var(--space-2);
  box-shadow: var(--shadow-lg);
}
.phone-bubble {
  background: rgba(255,255,255,0.96);
  color: var(--color-foreground);
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}
.b1 { align-self: flex-start; animation: bob 5s ease-in-out infinite; }
.b2 { align-self: flex-end; animation: bob 5s ease-in-out infinite 1.2s; }
.b3 { align-self: flex-start; animation: bob 5s ease-in-out infinite 2.4s; }
@keyframes bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}
@media (prefers-reduced-motion: reduce) {
  .phone-bubble { animation: none; }
}

/* ─── Sections ───────────────────────────────────────────── */
.section { padding: var(--space-7) 0; }
.on-white { background: var(--color-background); }
.on-warm { background: var(--color-warm); }
.section-head { max-width: 60ch; margin-bottom: var(--space-5); }

.icon-badge {
  width: 44px; height: 44px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--color-muted);
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}
.icon-badge.accent { background: rgba(5,150,105,0.1); color: var(--color-accent); }

.pain-grid, .feature-grid { display: grid; gap: var(--space-3); grid-template-columns: repeat(3, 1fr); }
.pain-card, .feature-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  transition: transform var(--transition), box-shadow var(--transition);
}
.pain-card:hover, .feature-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }

.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-3); counter-reset: step; }
.step { background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: var(--space-3); position: relative; transition: transform var(--transition), box-shadow var(--transition); }
.step:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.step-n {
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--color-primary); color: #fff; font-weight: 700; font-size: 0.9rem;
  margin-bottom: var(--space-2);
}

/* ─── Floating WhatsApp button ───────────────────────────── */
.wa-float {
  position: fixed;
  right: var(--space-3);
  bottom: var(--space-3);
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  box-shadow: var(--shadow-lg);
  text-decoration: none;
  opacity: 0;
  transform: translateY(16px) scale(0.9);
  pointer-events: none;
  transition: opacity var(--transition), transform var(--transition), background var(--transition);
}
.wa-float.visible { opacity: 1; transform: none; pointer-events: auto; }
.wa-float:hover { background: var(--color-accent-dark); }
.wa-float::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid var(--color-accent);
  animation: pulse-ring 2.4s ease-out infinite;
}
@keyframes pulse-ring {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(1.6); opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .wa-float::before { animation: none; }
}

/* ─── Dark section ───────────────────────────────────────── */
.section-dark { position: relative; overflow: hidden; background: var(--color-dark-bg); color: var(--color-dark-fg); padding: var(--space-7) 0; }
.section-dark h2.on-dark { color: #fff; }
.eyebrow-dark { color: #7DD3AE; }
.section-dark p { color: var(--color-dark-muted); }
.trust-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-3); }
.trust-item { border: 1px solid rgba(255,255,255,0.12); border-radius: var(--radius-md); padding: var(--space-3); transition: transform var(--transition), border-color var(--transition); }
.trust-item:hover { transform: translateY(-3px); border-color: var(--color-accent); }
.trust-item h3 { color: #fff; }

/* ─── Planos ─────────────────────────────────────────────── */
.planos-layout { display: flex; justify-content: center; }
.planos-head { text-align: center; max-width: 62ch; margin: 0 auto; }
.planos-urgency { font-size: 1.05rem; color: #475569; }

/* ─── FAQ ────────────────────────────────────────────────── */
.faq-layout { max-width: 800px; }
.faq-list { display: flex; flex-direction: column; gap: var(--space-2); }
.faq-item { background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: var(--space-2) var(--space-3); }
.faq-item summary { cursor: pointer; font-weight: 700; list-style: none; display: flex; align-items: center; justify-content: space-between; min-height: 44px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; font-size: 1.3rem; color: var(--color-primary); }
.faq-item[open] summary::after { content: '\2212'; }
.faq-item p { margin-top: var(--space-2); }

/* ─── CTA final ──────────────────────────────────────────── */
.ctaf {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  padding: var(--space-7) 0;
  text-align: center;
}
.ctaf-inner { max-width: 700px; margin: 0 auto; }
.ctaf h2 { color: #fff; }
.ctaf-sub { color: rgba(255,255,255,0.9); font-size: 1.1rem; margin-bottom: var(--space-4); }
.ctaf .btn-primary { background: #fff; color: var(--color-primary); }
.ctaf .btn-primary:hover { background: #F1F5FD; }

/* ─── Footer ─────────────────────────────────────────────── */
.footer { background: var(--color-dark-bg); color: var(--color-dark-muted); padding: var(--space-6) 0 var(--space-3); }
.footer-inner { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: var(--space-4); padding-bottom: var(--space-4); border-bottom: 1px solid rgba(255,255,255,0.1); }
.footer-brand img { height: 26px; margin-bottom: var(--space-2); }
.footer-brand .logo-fallback { font-size: 1.1rem; }
.footer-col h4 { color: #fff; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: var(--space-2); }
.footer-col a { display: block; color: var(--color-dark-muted); text-decoration: none; margin-bottom: 8px; font-size: 0.9rem; }
.footer-col a:hover { color: #fff; }
.footer-legal { padding-top: var(--space-3); font-size: 0.8rem; }

/* ─── Responsive (mobile-first: .links/.burger base state set above) ── */
@media (min-width: 768px) {
  .cta-nav { display: inline-flex; }
}
@media (max-width: 1023px) {
  .pain-grid, .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .trust-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 767px) {
  .hero-layout { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .pain-grid, .feature-grid, .steps { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
}
@media (min-width: 1024px) {
  .links { display: flex; }
  .burger { display: none; }
}