/* =====================================================
   MULTENERGY — DESIGN SYSTEM
   Paleta da marca: #404F9D (primária) #ED7220 (CTA) #FFFFFF #F7F9FC
   Direção: editorial corporativo, B2B sério, infra crítica
   ===================================================== */

:root {
  /* Cores da marca */
  --c-primary: #404F9D;
  --c-primary-dark: #2D3970;
  --c-primary-light: #5A6AB8;
  --c-cta: #ED7220;
  --c-cta-dark: #C85E16;
  --c-white: #FFFFFF;
  --c-bg: #F7F9FC;

  /* Neutros derivados */
  --c-ink: #0F1729;
  --c-ink-soft: #2A3447;
  --c-muted: #6B7280;
  --c-line: #E2E6EE;
  --c-line-soft: #EEF1F6;

  /* Tipografia */
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Manrope', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  /* Sistema de espaço (8px grid) */
  --s-1: 0.25rem;
  --s-2: 0.5rem;
  --s-3: 0.75rem;
  --s-4: 1rem;
  --s-5: 1.5rem;
  --s-6: 2rem;
  --s-7: 3rem;
  --s-8: 4rem;
  --s-9: 6rem;
  --s-10: 8rem;

  /* Container */
  --container: 1280px;
  --container-narrow: 960px;

  /* Sombras (sutis, B2B sério) */
  --shadow-sm: 0 1px 2px rgba(15, 23, 41, 0.04), 0 1px 3px rgba(15, 23, 41, 0.06);
  --shadow-md: 0 4px 12px rgba(15, 23, 41, 0.06), 0 2px 6px rgba(15, 23, 41, 0.04);
  --shadow-lg: 0 12px 32px rgba(15, 23, 41, 0.08), 0 4px 12px rgba(15, 23, 41, 0.04);

  /* Transições */
  --t-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --t-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --t-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Border radius (mínimo, B2B) */
  --r-sm: 4px;
  --r-md: 8px;
  --r-lg: 12px;
}

/* =====================================================
   RESET E BASE
   ===================================================== */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--c-ink);
  background: var(--c-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

img, svg, video { max-width: 100%; height: auto; display: block; }
a { color: var(--c-primary); text-decoration: none; transition: color var(--t-fast); }
a:hover { color: var(--c-cta); }

button { font-family: inherit; cursor: pointer; border: none; background: none; }

ul, ol { list-style: none; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--c-ink);
}

/* Tipografia editorial — escala restrita */
.h-display {
  font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.03em;
}
.h-1 { font-size: clamp(2rem, 3vw + 1rem, 3rem); }
.h-2 { font-size: clamp(1.625rem, 2vw + 1rem, 2.25rem); }
.h-3 { font-size: clamp(1.25rem, 1vw + 0.75rem, 1.5rem); }
.h-4 { font-size: 1.125rem; font-weight: 600; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--c-primary);
  margin-bottom: var(--s-4);
  display: inline-block;
}

.lead {
  font-size: 1.125rem;
  line-height: 1.65;
  color: var(--c-ink-soft);
}

/* =====================================================
   LAYOUT — CONTAINER E SEÇÕES
   ===================================================== */

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: var(--s-5);
  padding-right: var(--s-5);
}
.container-narrow {
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding-left: var(--s-5);
  padding-right: var(--s-5);
}

.section {
  padding: var(--s-9) 0;
}
.section--tight { padding: var(--s-7) 0; }
.section--bg { background: var(--c-bg); }
.section--dark { background: var(--c-ink); color: var(--c-white); }
.section--dark h1, .section--dark h2, .section--dark h3 { color: var(--c-white); }
.section--dark .lead { color: rgba(255, 255, 255, 0.75); }
.section--dark .eyebrow { color: var(--c-cta); }

.section-header {
  max-width: 720px;
  margin-bottom: var(--s-7);
}
.section-header--center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

/* =====================================================
   BOTÕES
   ===================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-2);
  padding: 0.875rem 1.75rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1;
  border-radius: var(--r-sm);
  transition: all var(--t-base);
  white-space: nowrap;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn--primary {
  background: var(--c-cta);
  color: var(--c-white);
}
.btn--primary:hover {
  background: var(--c-cta-dark);
  color: var(--c-white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--ghost {
  background: transparent;
  color: var(--c-ink);
  border-color: var(--c-line);
}
.btn--ghost:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
}

.btn--ghost-light {
  background: transparent;
  color: var(--c-white);
  border-color: rgba(255, 255, 255, 0.25);
}
.btn--ghost-light:hover {
  border-color: var(--c-white);
  background: rgba(255, 255, 255, 0.08);
  color: var(--c-white);
}

.btn--lg { padding: 1.125rem 2.25rem; font-size: 1rem; }
.btn--sm { padding: 0.625rem 1.25rem; font-size: 0.875rem; }

.btn-arrow::after {
  content: '→';
  transition: transform var(--t-fast);
}
.btn-arrow:hover::after { transform: translateX(3px); }

/* =====================================================
   HEADER
   ===================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--c-line-soft);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-6);
  padding: var(--s-4) 0;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--c-ink);
  letter-spacing: -0.01em;
}
.site-logo:hover { color: var(--c-primary); }
.site-logo img { max-height: 36px; width: auto; }

.site-logo__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--c-primary);
  color: var(--c-white);
  border-radius: var(--r-sm);
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 500;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--s-2);
}
.main-nav__list {
  display: flex;
  align-items: center;
  gap: var(--s-1);
}
.main-nav__item { position: relative; }
.main-nav__link {
  display: inline-flex;
  align-items: center;
  gap: var(--s-1);
  padding: var(--s-2) var(--s-4);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--c-ink-soft);
  border-radius: var(--r-sm);
  transition: all var(--t-fast);
}
.main-nav__link:hover,
.main-nav__link.is-active { color: var(--c-primary); background: var(--c-bg); }

/* Submenu */
.main-nav__submenu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 260px;
  padding: var(--s-3);
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--t-base);
}
.main-nav__item:hover .main-nav__submenu,
.main-nav__item:focus-within .main-nav__submenu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.main-nav__submenu .main-nav__link {
  display: block;
  padding: var(--s-3);
  font-size: 0.875rem;
}
.main-nav__caret { font-size: 0.625rem; opacity: 0.6; }

.site-header__cta { display: flex; align-items: center; gap: var(--s-3); }

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: var(--r-sm);
}
.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--c-ink);
  position: relative;
}
.menu-toggle span::before,
.menu-toggle span::after {
  content: '';
  position: absolute;
  left: 0;
  width: 22px;
  height: 2px;
  background: var(--c-ink);
  transition: transform var(--t-base);
}
.menu-toggle span::before { top: -7px; }
.menu-toggle span::after { top: 7px; }

/* =====================================================
   HERO
   ===================================================== */

.hero {
  position: relative;
  padding: var(--s-9) 0 var(--s-10);
  background: var(--c-white);
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: -10%;
  width: 60%;
  height: 100%;
  background: radial-gradient(ellipse at top right, rgba(64, 79, 157, 0.06), transparent 60%);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: var(--s-8);
  align-items: center;
}

.hero__content { max-width: 640px; }
.hero__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.5rem, 4.5vw + 1rem, 4.25rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: var(--s-5);
}
.hero__title em {
  font-style: italic;
  color: var(--c-primary);
}
.hero__subtitle {
  font-size: 1.1875rem;
  line-height: 1.6;
  color: var(--c-ink-soft);
  margin-bottom: var(--s-6);
  max-width: 560px;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3);
  margin-bottom: var(--s-7);
}

.hero__stats {
  display: flex;
  gap: var(--s-7);
  padding-top: var(--s-6);
  border-top: 1px solid var(--c-line);
}
.hero__stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 400;
  color: var(--c-primary);
  line-height: 1;
  margin-bottom: var(--s-2);
  letter-spacing: -0.02em;
}
.hero__stat-label {
  font-size: 0.8125rem;
  color: var(--c-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* Card visual ao lado do hero */
.hero__visual {
  position: relative;
  background: var(--c-ink);
  color: var(--c-white);
  padding: var(--s-7);
  border-radius: var(--r-lg);
  overflow: hidden;
  min-height: 480px;
}
.hero__visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 80% 20%, rgba(237, 114, 32, 0.12), transparent 50%),
    radial-gradient(circle at 20% 80%, rgba(64, 79, 157, 0.18), transparent 50%);
}
.hero__visual-content { position: relative; z-index: 1; height: 100%; display: flex; flex-direction: column; justify-content: space-between; }
.hero__status {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  padding: var(--s-2) var(--s-3);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  align-self: flex-start;
}
.hero__status-dot {
  width: 6px;
  height: 6px;
  background: #4ADE80;
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(74, 222, 128, 0.18);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}
.hero__metric {
  font-family: var(--font-display);
  font-size: 4.5rem;
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.04em;
  margin: var(--s-6) 0 var(--s-2);
}
.hero__metric-label {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--s-7);
}
.hero__metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--s-5);
  padding-top: var(--s-5);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}
.hero__metric-mini {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-bottom: var(--s-1);
}
.hero__metric-mini-label {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.55);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* =====================================================
   GRIDS DE CARDS (setores, soluções, serviços)
   ===================================================== */

.cards-grid {
  display: grid;
  gap: var(--s-5);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.cards-grid--4 { grid-template-columns: repeat(4, 1fr); }
.cards-grid--3 { grid-template-columns: repeat(3, 1fr); }
.cards-grid--2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  padding: var(--s-6);
  transition: all var(--t-base);
  display: flex;
  flex-direction: column;
  height: 100%;
}
.card:hover {
  border-color: var(--c-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.card__tag {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--c-primary);
  margin-bottom: var(--s-4);
}
.card__title {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 500;
  margin-bottom: var(--s-3);
  letter-spacing: -0.01em;
  line-height: 1.2;
}
.card__text {
  color: var(--c-ink-soft);
  font-size: 0.9375rem;
  line-height: 1.6;
  flex: 1;
}
.card__link {
  margin-top: var(--s-5);
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--c-primary);
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
}
.card__link::after { content: '→'; transition: transform var(--t-fast); }
.card__link:hover::after { transform: translateX(3px); }

/* Card no fundo escuro */
.section--dark .card {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.1);
  color: var(--c-white);
}
.section--dark .card:hover { border-color: var(--c-cta); background: rgba(255, 255, 255, 0.06); }
.section--dark .card__title { color: var(--c-white); }
.section--dark .card__text { color: rgba(255, 255, 255, 0.7); }
.section--dark .card__tag { color: var(--c-cta); }
.section--dark .card__link { color: var(--c-cta); }

/* =====================================================
   LISTA DE PROCESSO (4 etapas)
   ===================================================== */

.process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--c-line);
}
.process__step {
  padding: var(--s-6) var(--s-5) var(--s-7);
  border-right: 1px solid var(--c-line);
  position: relative;
}
.process__step:last-child { border-right: none; }
.process__num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--c-cta);
  letter-spacing: 0.1em;
  margin-bottom: var(--s-5);
}
.process__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  margin-bottom: var(--s-3);
  letter-spacing: -0.01em;
}
.process__text {
  font-size: 0.9375rem;
  color: var(--c-ink-soft);
  line-height: 1.55;
}

/* =====================================================
   GARANTIAS (12m / 18m / 48m)
   ===================================================== */

.warranty-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s-5);
  margin-top: var(--s-7);
}
.warranty {
  padding: var(--s-7) var(--s-6);
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  text-align: center;
}
.warranty--featured {
  background: var(--c-primary);
  color: var(--c-white);
  border-color: var(--c-primary);
}
.warranty__num {
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: var(--s-4);
  color: var(--c-primary);
}
.warranty--featured .warranty__num { color: var(--c-white); }
.warranty__title {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--s-2);
}
.warranty__text {
  font-size: 0.875rem;
  color: var(--c-ink-soft);
  line-height: 1.5;
}
.warranty--featured .warranty__text { color: rgba(255, 255, 255, 0.8); }

/* =====================================================
   PRESENÇA / LOCAIS
   ===================================================== */

.locations {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s-5);
}
.location {
  padding: var(--s-6);
  background: var(--c-white);
  border-left: 3px solid var(--c-primary);
  border-radius: 0 var(--r-md) var(--r-md) 0;
}
.location__city {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--c-primary);
  margin-bottom: var(--s-3);
}
.location__name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  margin-bottom: var(--s-3);
  letter-spacing: -0.01em;
}
.location__address {
  color: var(--c-ink-soft);
  font-size: 0.9375rem;
}

/* =====================================================
   CTA FINAL
   ===================================================== */

.cta-banner {
  padding: var(--s-9) 0;
  background: var(--c-ink);
  color: var(--c-white);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 30% 50%, rgba(237, 114, 32, 0.12), transparent 50%),
    radial-gradient(circle at 70% 50%, rgba(64, 79, 157, 0.18), transparent 50%);
  pointer-events: none;
}
.cta-banner__inner {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
  padding: 0 var(--s-5);
}
.cta-banner h2 {
  color: var(--c-white);
  font-size: clamp(2rem, 3vw + 1rem, 3rem);
  margin-bottom: var(--s-5);
}
.cta-banner p {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: var(--s-7);
}
.cta-banner__actions {
  display: flex;
  gap: var(--s-3);
  justify-content: center;
  flex-wrap: wrap;
}

/* =====================================================
   PÁGINAS DE PRODUTO
   ===================================================== */

.product-hero {
  padding: var(--s-9) 0;
  background: var(--c-bg);
}
.product-hero__inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--s-8);
  align-items: center;
}
.product-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 4vw + 0.5rem, 3.5rem);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: var(--s-5);
}
.product-hero__lead {
  font-size: 1.125rem;
  color: var(--c-ink-soft);
  line-height: 1.6;
  margin-bottom: var(--s-6);
}
.product-features {
  list-style: none;
  margin-bottom: var(--s-6);
}
.product-features li {
  padding: var(--s-3) 0;
  border-bottom: 1px solid var(--c-line);
  display: flex;
  align-items: center;
  gap: var(--s-3);
  font-size: 0.9375rem;
  color: var(--c-ink-soft);
}
.product-features li::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--c-cta);
  border-radius: 50%;
  flex-shrink: 0;
}
.product-hero__image {
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  padding: var(--s-7);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 400px;
}
.product-hero__image img { max-width: 100%; height: auto; }
.product-hero__image-placeholder {
  font-family: var(--font-mono);
  color: var(--c-muted);
  font-size: 0.875rem;
  text-align: center;
}

/* =====================================================
   FAQ
   ===================================================== */

.faq {
  max-width: 760px;
  margin: 0 auto;
}
.faq__item {
  border-bottom: 1px solid var(--c-line);
}
.faq__question {
  width: 100%;
  padding: var(--s-5) 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-align: left;
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--c-ink);
  background: none;
  border: none;
  cursor: pointer;
  letter-spacing: -0.01em;
}
.faq__icon {
  width: 20px;
  height: 20px;
  position: relative;
  flex-shrink: 0;
}
.faq__icon::before, .faq__icon::after {
  content: '';
  position: absolute;
  background: var(--c-primary);
  transition: transform var(--t-base);
}
.faq__icon::before { top: 9px; left: 0; width: 20px; height: 2px; }
.faq__icon::after { top: 0; left: 9px; width: 2px; height: 20px; }
.faq__item[open] .faq__icon::after { transform: scaleY(0); }
.faq__answer {
  padding: 0 0 var(--s-5);
  color: var(--c-ink-soft);
  font-size: 1rem;
  line-height: 1.65;
}

/* =====================================================
   FORMULÁRIO DE CONTATO
   ===================================================== */

.contact-form {
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  padding: var(--s-7);
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-5);
}
.form-field { display: flex; flex-direction: column; gap: var(--s-2); }
.form-field--full { grid-column: 1 / -1; }
.form-field label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--c-ink);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.form-field input,
.form-field textarea,
.form-field select {
  padding: var(--s-3) var(--s-4);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--c-ink);
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--r-sm);
  transition: all var(--t-fast);
}
.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
  outline: none;
  border-color: var(--c-primary);
  background: var(--c-white);
  box-shadow: 0 0 0 3px rgba(64, 79, 157, 0.12);
}
.form-field textarea { min-height: 140px; resize: vertical; }
.form-submit { margin-top: var(--s-5); }

/* =====================================================
   BLOG
   ===================================================== */

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s-6);
}
.post-card {
  display: flex;
  flex-direction: column;
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  overflow: hidden;
  transition: all var(--t-base);
}
.post-card:hover {
  border-color: var(--c-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.post-card__image {
  aspect-ratio: 16/10;
  background: var(--c-bg);
  overflow: hidden;
}
.post-card__image img { width: 100%; height: 100%; object-fit: cover; }
.post-card__body { padding: var(--s-5); flex: 1; display: flex; flex-direction: column; }
.post-card__meta {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-muted);
  margin-bottom: var(--s-3);
}
.post-card__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.25;
  margin-bottom: var(--s-3);
  color: var(--c-ink);
}
.post-card__title a { color: inherit; }
.post-card__title a:hover { color: var(--c-primary); }
.post-card__excerpt { color: var(--c-ink-soft); font-size: 0.9375rem; line-height: 1.55; flex: 1; }
.post-card__readmore {
  margin-top: var(--s-4);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--c-primary);
}

/* Single post */
.single-post {
  max-width: 720px;
  margin: 0 auto;
  padding: var(--s-9) var(--s-5);
}
.single-post__meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--c-primary);
  margin-bottom: var(--s-5);
}
.single-post__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3vw + 1rem, 3rem);
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 1.1;
  margin-bottom: var(--s-7);
}
.single-post__content {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--c-ink-soft);
}
.single-post__content > * + * { margin-top: var(--s-5); }
.single-post__content h2 { font-size: 1.75rem; margin-top: var(--s-7); color: var(--c-ink); }
.single-post__content h3 { font-size: 1.375rem; margin-top: var(--s-6); color: var(--c-ink); }
.single-post__content p { margin-bottom: var(--s-4); }
.single-post__content ul, .single-post__content ol { padding-left: var(--s-5); margin-bottom: var(--s-5); }
.single-post__content ul li { list-style: disc; margin-bottom: var(--s-2); }
.single-post__content ol li { list-style: decimal; margin-bottom: var(--s-2); }
.single-post__content a { color: var(--c-primary); border-bottom: 1px solid var(--c-line); }
.single-post__content a:hover { border-bottom-color: var(--c-primary); }
.single-post__content blockquote {
  border-left: 3px solid var(--c-cta);
  padding-left: var(--s-5);
  margin: var(--s-6) 0;
  font-style: italic;
  color: var(--c-ink);
}

/* =====================================================
   PÁGINA LEGAL (termos, política)
   ===================================================== */

.legal-page {
  max-width: 760px;
  margin: 0 auto;
  padding: var(--s-9) var(--s-5);
}
.legal-page h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3vw + 0.5rem, 2.75rem);
  font-weight: 400;
  letter-spacing: -0.025em;
  margin-bottom: var(--s-7);
}
.legal-page h2 { font-size: 1.5rem; margin-top: var(--s-7); margin-bottom: var(--s-4); }
.legal-page p { margin-bottom: var(--s-4); color: var(--c-ink-soft); line-height: 1.7; }

/* =====================================================
   FOOTER
   ===================================================== */

.site-footer {
  background: var(--c-ink);
  color: rgba(255, 255, 255, 0.7);
  padding: var(--s-9) 0 var(--s-5);
}
.site-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--s-7);
  margin-bottom: var(--s-7);
  padding-bottom: var(--s-7);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.site-footer__brand { max-width: 360px; }
.site-footer__logo {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  margin-bottom: var(--s-5);
  color: var(--c-white);
}
.site-footer__logo .site-logo__mark { background: var(--c-cta); }
.site-footer__name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--c-white);
  font-weight: 500;
  letter-spacing: -0.01em;
}
.site-footer__sub {
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-family: var(--font-mono);
  color: var(--c-cta);
  display: block;
  margin-top: var(--s-1);
}
.site-footer__about {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: var(--s-5);
}
.site-footer__col-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-family: var(--font-mono);
  color: var(--c-white);
  margin-bottom: var(--s-4);
}
.site-footer__list { display: flex; flex-direction: column; gap: var(--s-3); }
.site-footer__list a {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.9375rem;
  transition: color var(--t-fast);
}
.site-footer__list a:hover { color: var(--c-cta); }
.site-footer__contact-block { margin-bottom: var(--s-5); }
.site-footer__label {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.45);
  display: block;
  margin-bottom: var(--s-2);
}
.site-footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--s-4);
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.5);
}
.site-footer__bottom-links { display: flex; gap: var(--s-5); }
.site-footer__bottom-links a { color: rgba(255, 255, 255, 0.5); }
.site-footer__bottom-links a:hover { color: var(--c-cta); }

/* =====================================================
   WHATSAPP FLUTUANTE
   ===================================================== */

.wa-float {
  position: fixed;
  right: var(--s-5);
  bottom: var(--s-5);
  z-index: 90;
  width: 60px;
  height: 60px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #25D366;
  color: white;
  border-radius: 50%;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4);
  transition: all var(--t-base);
}
.wa-float:hover {
  background: #1FB855;
  color: white;
  transform: scale(1.05);
  box-shadow: 0 12px 32px rgba(37, 211, 102, 0.5);
}
.wa-float svg { width: 30px; height: 30px; }

/* =====================================================
   PAGINATION
   ===================================================== */

.pagination {
  display: flex;
  justify-content: center;
  gap: var(--s-2);
  margin-top: var(--s-7);
}
.pagination .page-numbers {
  padding: var(--s-3) var(--s-4);
  border: 1px solid var(--c-line);
  border-radius: var(--r-sm);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--c-ink-soft);
}
.pagination .page-numbers.current {
  background: var(--c-primary);
  color: var(--c-white);
  border-color: var(--c-primary);
}
.pagination .page-numbers:hover { border-color: var(--c-primary); color: var(--c-primary); }

/* =====================================================
   RESPONSIVO
   ===================================================== */

@media (max-width: 1024px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__visual { min-height: 360px; }
  .product-hero__inner { grid-template-columns: 1fr; }
  .cards-grid--4 { grid-template-columns: repeat(2, 1fr); }
  .process { grid-template-columns: repeat(2, 1fr); }
  .process__step:nth-child(2n) { border-right: none; }
  .process__step:nth-child(-n+2) { border-bottom: 1px solid var(--c-line); }
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
  .site-footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .menu-toggle { display: inline-flex; }
  .main-nav {
    position: fixed;
    top: 73px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--c-white);
    flex-direction: column;
    align-items: stretch;
    padding: var(--s-5);
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform var(--t-base);
  }
  .main-nav.is-open { transform: translateX(0); }
  .main-nav__list { flex-direction: column; align-items: stretch; gap: 0; }
  .main-nav__link { padding: var(--s-4); border-bottom: 1px solid var(--c-line-soft); }
  .main-nav__submenu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    background: var(--c-bg);
    padding: 0;
    margin: var(--s-2) 0;
  }
  .site-header__cta .btn:not(.menu-toggle) { display: none; }
  .menu-toggle { order: 3; }
  .hero__stats { flex-wrap: wrap; gap: var(--s-5); }
  .cards-grid--4, .cards-grid--3, .cards-grid--2 { grid-template-columns: 1fr; }
  .process { grid-template-columns: 1fr; }
  .process__step { border-right: none; border-bottom: 1px solid var(--c-line); }
  .process__step:last-child { border-bottom: none; }
  .warranty-grid { grid-template-columns: 1fr; }
  .locations { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .site-footer__grid { grid-template-columns: 1fr; }
  .section { padding: var(--s-7) 0; }
  .hero { padding: var(--s-7) 0; }
}