/* =================================================================
   PLAQUINHAS NFC NEXXUS — Landing CSS
   Organizado em: tokens → reset → layout → componentes → seções
   ================================================================= */

/* ─── Tokens de design ─────────────────────────────────────────── */
:root {
  /* Marca */
  --blue:          #0878D1;
  --blue-dark:     #0660A8;
  --blue-light:    #E8F3FB;
  --blue-glow:     rgba(8, 120, 209, 0.20);

  /* Neutros */
  --ink:           #1c2128;
  --ink-mid:       #57606a;
  --ink-faint:     #8b949e;
  --surface:       #ffffff;
  --surface-off:   #f6f8fa;
  --border:        #d0d7de;
  --border-light:  rgba(0,0,0,0.06);

  /* Semântica */
  --green:         #1a7f37;
  --star:          #FFB400;
  --dark-bg:       #0d1117;

  /* Tipografia */
  --font:          'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;

  /* Espaço */
  --section-gap:   88px;
  --container:     1140px;
  --gutter:        24px;

  /* Rádio */
  --r-sm:   6px;
  --r-md:   12px;
  --r-lg:   20px;
  --r-pill: 100px;

  /* Sombras */
  --shadow-card:  0 1px 3px rgba(0,0,0,0.08), 0 4px 16px rgba(0,0,0,0.06);
  --shadow-plate: 0 24px 56px rgba(8,120,209,0.22), 0 4px 14px rgba(0,0,0,0.14);

  /* Transições */
  --ease:   cubic-bezier(0.22, 1, 0.36, 1);
  --speed:  0.22s;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; border: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
p { margin: 0; }
h1, h2, h3, h4 { margin: 0; line-height: 1.1; }

/* ─── Layout base ──────────────────────────────────────────────── */
.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

section { padding-block: var(--section-gap); }

/* ─── Navbar ────────────────────────────────────────────────────── */
.nav {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 200;
  height: 64px;
  background: rgba(255,255,255,0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-light);
  transition: box-shadow var(--speed) var(--ease);
}

.nav.scrolled { box-shadow: 0 2px 16px rgba(0,0,0,0.08); }

.nav-inner {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
  height: 100%;
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-brand {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.2px;
  white-space: nowrap;
  flex-shrink: 0;
}

.nav-brand-accent { color: var(--blue); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-inline-start: auto;
}

.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-mid);
  transition: color var(--speed);
}
.nav-link:hover { color: var(--ink); }

.nav-cta {
  flex-shrink: 0;
  background: var(--blue);
  color: white;
  padding: 9px 20px;
  border-radius: var(--r-sm);
  font-size: 13.5px;
  font-weight: 600;
  transition: background var(--speed), transform var(--speed);
  white-space: nowrap;
}
.nav-cta:hover { background: var(--blue-dark); transform: translateY(-1px); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  background: transparent;
  margin-inline-start: auto;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: all 0.2s;
}

.nav-mobile {
  display: none;
  flex-direction: column;
  background: white;
  border-top: 1px solid var(--border);
  padding: 16px var(--gutter) 20px;
  gap: 4px;
}
.nav-mobile.open { display: flex; }

.nav-mobile-link {
  padding: 10px 0;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-mid);
  border-bottom: 1px solid var(--surface-off);
}

.nav-mobile-cta {
  margin-top: 12px;
  display: block;
  text-align: center;
  background: var(--blue);
  color: white;
  padding: 12px;
  border-radius: var(--r-sm);
  font-size: 15px;
  font-weight: 600;
}

/* ─── Botões ─────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--r-sm);
  font-family: var(--font);
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--speed) var(--ease);
  text-decoration: none;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--blue);
  color: white;
}
.btn-primary:hover {
  background: var(--blue-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--blue-glow);
}

.btn-outline {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid var(--border);
}
.btn-outline:hover {
  border-color: var(--blue);
  color: var(--blue);
}

.btn-white {
  background: white;
  color: var(--blue);
  font-weight: 700;
}
.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}

/* ─── Reveal on scroll ──────────────────────────────────────────── */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
[data-reveal].revealed {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

/* ─── Seção labels ──────────────────────────────────────────────── */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--blue-light);
  color: var(--blue);
  padding: 5px 13px;
  border-radius: var(--r-pill);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  margin-bottom: 20px;
}

/* ─── Headings padrão ─────────────────────────────────────────── */
.section-title {
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.6px;
  text-wrap: balance;
}

.section-sub {
  font-size: 17px;
  color: var(--ink-mid);
  line-height: 1.6;
  max-width: 520px;
}

/* ─── HERO ──────────────────────────────────────────────────────── */
.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-block: 100px 80px;
  padding-inline: var(--gutter);
  background: var(--surface);
  overflow: hidden;
  position: relative;
}

/* Fundo sutil */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 55% at 70% 50%, rgba(8,120,209,0.055) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  max-width: var(--container);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  width: 100%;
  position: relative;
}

.hero-text { max-width: 520px; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--blue-light);
  color: var(--blue);
  padding: 6px 14px;
  border-radius: var(--r-pill);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  margin-bottom: 28px;
}

.hero-h1 {
  font-size: clamp(36px, 5.5vw, 60px);
  font-weight: 900;
  color: var(--ink);
  letter-spacing: -1.5px;
  line-height: 1.05;
  margin-bottom: 24px;
  text-wrap: balance;
}

.hero-h1 em {
  font-style: normal;
  color: var(--blue);
}

.hero-sub {
  font-size: 18px;
  color: var(--ink-mid);
  line-height: 1.6;
  margin-bottom: 40px;
  max-width: 420px;
}

.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ─── Plaquinha visual ──────────────────────────────────────────── */
.plate-stage {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.plate-wrap {
  position: relative;
  width: 300px;
  height: 300px;
}

.plate-img {
  width: 100%;
  height: 100%;
  border-radius: 18px;
  filter: var(--shadow-plate);
  animation: plate-float 5s ease-in-out infinite;
  will-change: transform;
}

@keyframes plate-float {
  0%, 100% { transform: translateY(0) rotate(-1deg); }
  50% { transform: translateY(-12px) rotate(1deg); }
}

/* Indicadores flutuantes ao redor da plaquinha */
.plate-chip {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 6px;
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  padding: 7px 13px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ink);
  box-shadow: var(--shadow-card);
  white-space: nowrap;
  animation: chip-in 0.5s var(--ease) both;
  user-select: none;
}

.plate-chip .chip-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.plate-chip--nfc {
  top: 8%;
  left: -30%;
  animation-delay: 0.8s;
}
.plate-chip--qr {
  top: 72%;
  left: -28%;
  animation-delay: 1.2s;
}
.plate-chip--stars {
  top: 2%;
  right: -26%;
  animation-delay: 1.6s;
  gap: 2px;
}
.plate-chip--open {
  top: 68%;
  right: -30%;
  animation-delay: 2.0s;
}

@keyframes chip-in {
  from { opacity: 0; transform: scale(0.85) translateY(8px); }
  to   { opacity: 1; transform: none; }
}

/* Ondas NFC decorativas */
.nfc-waves {
  position: absolute;
  top: 50%;
  left: -44%;
  transform: translateY(-50%);
  display: flex;
  gap: 6px;
  align-items: center;
  pointer-events: none;
}

.nfc-wave {
  width: 18px;
  height: 18px;
  border: 2px solid var(--blue);
  border-radius: 50%;
  opacity: 0;
  animation: nfc-pulse 2.4s ease-out infinite;
}
.nfc-wave:nth-child(2) { animation-delay: 0.4s; width: 26px; height: 26px; }
.nfc-wave:nth-child(3) { animation-delay: 0.8s; width: 34px; height: 34px; }

@keyframes nfc-pulse {
  0%   { opacity: 0.7; transform: scale(0.8); }
  100% { opacity: 0; transform: scale(1.4); }
}

/* ─── COMO FUNCIONA ─────────────────────────────────────────────── */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 56px;
}

.step-card {
  text-align: center;
  padding: 36px 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  transition: transform var(--speed) var(--ease), box-shadow var(--speed) var(--ease);
}

.step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.step-number {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 22px;
  font-weight: 800;
  color: white;
}

.step-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 10px;
}

.step-desc {
  font-size: 14px;
  color: var(--ink-mid);
  line-height: 1.6;
}

/* ─── DEMO INTERATIVA ─────────────────────────────────────────── */
.demo-section {
  background: var(--dark-bg);
  color: white;
}

.demo-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 48px;
  background: rgba(255,255,255,0.06);
  border-radius: var(--r-pill);
  padding: 4px;
  width: fit-content;
}

.demo-tab {
  padding: 10px 24px;
  border-radius: var(--r-pill);
  font-size: 14px;
  font-weight: 600;
  color: rgba(255,255,255,0.55);
  background: transparent;
  transition: all var(--speed);
  cursor: pointer;
  border: none;
  font-family: var(--font);
}
.demo-tab.active {
  background: var(--blue);
  color: white;
}
.demo-tab:focus-visible { outline: 2px solid white; }

.demo-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.demo-panel { display: none; }
.demo-panel.active { display: contents; }

/* Tela de celular simulado */
.phone-mockup {
  width: 180px;
  height: 340px;
  background: #1c2128;
  border-radius: 28px;
  border: 3px solid rgba(255,255,255,0.1);
  position: relative;
  overflow: hidden;
  margin: 0 auto;
  box-shadow: 0 0 0 8px rgba(255,255,255,0.04), 0 24px 48px rgba(0,0,0,0.5);
}

.phone-screen {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

/* Cena NFC */
.nfc-scene { text-align: center; }

.nfc-icon {
  width: 48px;
  height: 48px;
  background: rgba(8,120,209,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
}

.nfc-rings {
  display: flex;
  gap: 0;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  position: relative;
  height: 50px;
}

.nfc-ring {
  position: absolute;
  border: 2px solid var(--blue);
  border-radius: 50%;
  opacity: 0;
}

/* Cena QR */
.qr-scene { text-align: center; }

.qr-finder {
  width: 100px;
  height: 100px;
  border: 2px solid rgba(255,255,255,0.2);
  border-radius: 8px;
  position: relative;
  margin: 0 auto 10px;
  overflow: hidden;
}

.qr-corner {
  position: absolute;
  width: 16px;
  height: 16px;
  border-color: var(--blue);
  border-style: solid;
}
.qr-corner--tl { top: -1px; left: -1px; border-width: 3px 0 0 3px; }
.qr-corner--tr { top: -1px; right: -1px; border-width: 3px 3px 0 0; }
.qr-corner--bl { bottom: -1px; left: -1px; border-width: 0 0 3px 3px; }
.qr-corner--br { bottom: -1px; right: -1px; border-width: 0 3px 3px 0; }

.qr-scanline {
  position: absolute;
  left: 4px; right: 4px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--blue), transparent);
  top: 0;
}

/* Cena resultado */
.result-screen {
  display: none;
  text-align: center;
}

.google-stars {
  display: flex;
  justify-content: center;
  gap: 4px;
  margin-bottom: 8px;
}

.demo-text {
  color: rgba(255,255,255,0.75);
  font-size: 13px;
  text-align: center;
  line-height: 1.5;
}

.demo-explain {
  padding-left: 8px;
}

.demo-explain-title {
  font-size: 26px;
  font-weight: 800;
  color: white;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
  text-wrap: balance;
}

.demo-explain-text {
  font-size: 15px;
  color: rgba(255,255,255,0.65);
  line-height: 1.65;
  margin-bottom: 28px;
}

.demo-steps-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 32px;
}

.demo-step {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: rgba(255,255,255,0.8);
}

.demo-step-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(8,120,209,0.3);
  border: 1px solid rgba(8,120,209,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  color: #5babf0;
  flex-shrink: 0;
}

/* ─── COMPARAÇÃO ────────────────────────────────────────────────── */
.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 48px;
}

.compare-card {
  border-radius: var(--r-md);
  padding: 32px;
  border: 1px solid var(--border);
}

.compare-card--sem {
  background: var(--surface-off);
}

.compare-card--com {
  background: var(--blue);
  color: white;
  border-color: transparent;
}

.compare-label {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.compare-card--sem .compare-label { color: var(--ink-faint); }
.compare-card--com .compare-label { color: rgba(255,255,255,0.65); }

.compare-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 20px;
}

.compare-card--com .compare-title { color: white; }

.compare-steps { display: flex; flex-direction: column; gap: 10px; }

.compare-step {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  line-height: 1.5;
}

.compare-card--sem .compare-step { color: var(--ink-mid); }
.compare-card--com .compare-step { color: rgba(255,255,255,0.88); }

.compare-icon {
  flex-shrink: 0;
  margin-top: 2px;
  font-size: 14px;
}

.compare-arrow {
  display: flex;
  align-items: center;
  padding-left: 20px;
  color: var(--ink-faint);
  font-size: 13px;
}

/* ─── PRODUTO ───────────────────────────────────────────────────── */
.produto-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.produto-plate {
  display: flex;
  justify-content: center;
  align-items: center;
}

.produto-plate-img {
  width: 260px;
  height: 260px;
  border-radius: 18px;
  box-shadow: var(--shadow-plate);
}

.produto-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}

.spec-card {
  background: var(--surface-off);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 18px 20px;
}

.spec-icon {
  font-size: 22px;
  margin-bottom: 8px;
}

.spec-label {
  font-size: 13px;
  color: var(--ink-mid);
  margin-bottom: 4px;
}

.spec-value {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

/* ─── SMART LINK ────────────────────────────────────────────────── */
.smartlink-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.checklist { display: flex; flex-direction: column; gap: 12px; margin-top: 24px; }

.checklist-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  color: var(--ink);
}

.checklist-check {
  width: 22px;
  height: 22px;
  background: var(--green);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: white;
  font-size: 12px;
  font-weight: 700;
}

.card-demo {
  background: var(--surface-off);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 24px;
  font-size: 13px;
  color: var(--ink-mid);
}

.card-demo-header {
  text-align: center;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.card-demo-id {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 8px;
}

.card-demo-status {
  background: var(--blue);
  color: white;
  border-radius: var(--r-sm);
  padding: 5px 14px;
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
}

.card-demo-row {
  margin-bottom: 12px;
}

.card-demo-row:last-child { margin-bottom: 0; }

.card-demo-rowlabel {
  font-size: 11px;
  color: var(--ink-faint);
  margin-bottom: 4px;
}

.card-demo-rowvalue {
  font-family: ui-monospace, 'Cascadia Code', monospace;
  font-size: 12px;
  color: var(--ink);
  background: white;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 6px 10px;
}

.card-demo-note {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--ink-faint);
  line-height: 1.5;
}

/* ─── NEGÓCIOS ──────────────────────────────────────────────────── */
.negocio-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-top: 48px;
  max-width: 720px;
  margin-inline: auto;
}

.negocio-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  padding: 11px 22px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--ink);
  box-shadow: 0 1px 4px rgba(0,0,0,0.05);
  transition: border-color var(--speed), color var(--speed), transform var(--speed), box-shadow var(--speed);
  cursor: default;
}
.negocio-pill:hover {
  border-color: var(--blue);
  color: var(--blue);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(8,120,209,0.12);
}

.negocio-icon {
  font-size: 16px;
  line-height: 1;
}

/* ─── FAQ ───────────────────────────────────────────────────────── */
.faq-list { max-width: 680px; margin-inline: auto; margin-top: 48px; }

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-btn {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  background: transparent;
  border: none;
  font-family: var(--font);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
  gap: 16px;
}

.faq-btn:focus-visible { outline: 2px solid var(--blue); border-radius: 4px; }

.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--blue-light);
  color: var(--blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  flex-shrink: 0;
  transition: background var(--speed), transform var(--speed);
  line-height: 1;
}

.faq-btn[aria-expanded="true"] .faq-icon {
  background: var(--blue);
  color: white;
  transform: rotate(45deg);
}

.faq-answer {
  display: none;
  padding-bottom: 20px;
  font-size: 14px;
  color: var(--ink-mid);
  line-height: 1.7;
}
.faq-answer.open { display: block; }

/* ─── CTA FINAL ─────────────────────────────────────────────────── */
.cta-section {
  background: var(--blue);
  text-align: center;
}

.cta-section .section-title { color: white; }
.cta-section .section-sub { color: rgba(255,255,255,0.78); margin-inline: auto; }

/* ─── Footer ────────────────────────────────────────────────────── */
.footer {
  background: var(--dark-bg);
  color: var(--ink-faint);
  padding: 48px var(--gutter) 28px;
}

.footer-inner {
  max-width: var(--container);
  margin-inline: auto;
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
  align-items: flex-start;
  margin-bottom: 32px;
}

.footer-brand { flex: 1; min-width: 200px; }

.footer-brand-name {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: #e6edf3;
  margin-bottom: 4px;
}

.footer-brand-tag {
  display: block;
  font-size: 12px;
  color: var(--ink-faint);
  margin-bottom: 10px;
}

.footer-tagline {
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
  align-items: flex-start;
}

.footer-links a {
  font-size: 13px;
  color: var(--ink-faint);
  transition: color var(--speed);
}
.footer-links a:hover { color: #e6edf3; }

.footer-admin-link { opacity: 0.55; font-size: 12px !important; }

.footer-bottom {
  max-width: var(--container);
  margin-inline: auto;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.06);
  text-align: center;
  font-size: 12px;
  color: rgba(255,255,255,0.2);
}

/* ─── Responsividade ─────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .hero-inner { gap: 40px; }
  .plate-wrap { width: 260px; height: 260px; }
  .plate-chip--nfc { left: -36%; }
  .plate-chip--qr  { left: -34%; }
  .plate-chip--stars { right: -32%; }
  .plate-chip--open  { right: -36%; }
}

@media (max-width: 900px) {
  .steps-grid { grid-template-columns: 1fr; max-width: 440px; margin-inline: auto; }
  .demo-content { grid-template-columns: 1fr; }
  .compare-grid { grid-template-columns: 1fr; }
  .produto-grid { grid-template-columns: 1fr; }
  .smartlink-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  :root { --section-gap: 64px; --gutter: 16px; }

  .hero { padding-block: 90px 60px; }
  .hero-inner { grid-template-columns: 1fr; text-align: center; gap: 48px; }
  .hero-text { max-width: 100%; }
  .hero-sub { max-width: 100%; margin-inline: auto; }
  .hero-ctas { justify-content: center; }
  .hero-h1 { font-size: clamp(32px, 8vw, 44px); }

  .plate-stage { order: -1; }
  .plate-wrap { width: 220px; height: 220px; }

  /* Chips reposicionados para mobile */
  .plate-chip--nfc   { top: -14%; left: 50%; transform: translateX(-50%); }
  .plate-chip--qr    { top: 108%; left: 50%; transform: translateX(-50%); }
  .plate-chip--stars { top: 34%; right: -30%; left: auto; transform: none; }
  .plate-chip--open  { top: 58%; right: -32%; left: auto; transform: none; }
  .nfc-waves         { display: none; }

  .nav-links { display: none; }
  .nav-cta   { display: none; }
  .nav-toggle { display: flex; }

  .demo-content { grid-template-columns: 1fr; }
  .demo-explain { padding-left: 0; text-align: center; margin-top: 32px; }
  .demo-steps-list { align-items: center; }

  .compare-grid { grid-template-columns: 1fr; }

  .produto-specs { grid-template-columns: 1fr 1fr; }

  .footer-inner { flex-direction: column; gap: 24px; }
}

@media (max-width: 480px) {
  .produto-specs { grid-template-columns: 1fr; }
  .plate-chip--stars,
  .plate-chip--open { display: none; }
}