/* ============================================================
   THAUFE — Representante Aliva no Brasil
   style.css — Folha de estilos principal
   Versão: 1.0 | Design Industrial Premium
   ============================================================ */

/* ============================================================
   1. RESET & BASE
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Paleta principal */
  --color-black:       #0d0d0d;
  --color-graphite:    #1a1a1a;
  --color-dark:        #222222;
  --color-mid-gray:    #3a3a3a;
  --color-gray:        #5a5a5a;
  --color-light-gray:  #9a9a9a;
  --color-silver:      #c8c8c8;
  --color-white-soft:  #f0f0f0;
  --color-white:       #ffffff;

  /* Cor de destaque — verde técnico sóbrio */
  --color-accent:      #2ecc71;
  --color-accent-dark: #27ae60;
  --color-accent-light:#52d98a;

  /* Tipografia */
  --font-primary: 'Inter', 'Barlow', 'Roboto', sans-serif;
  --font-heading: 'Barlow', 'Inter', 'Roboto Condensed', sans-serif;

  /* Tamanhos de fonte */
  --fs-xs:   0.75rem;
  --fs-sm:   0.875rem;
  --fs-base: 1rem;
  --fs-md:   1.125rem;
  --fs-lg:   1.25rem;
  --fs-xl:   1.5rem;
  --fs-2xl:  1.875rem;
  --fs-3xl:  2.25rem;
  --fs-4xl:  3rem;
  --fs-5xl:  3.75rem;

  /* Espaçamentos */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Layout */
  --container-max: 1280px;
  --container-md:  960px;
  --border-radius: 4px;
  --border-radius-lg: 8px;

  /* Sombras */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.4);
  --shadow-md:  0 4px 12px rgba(0,0,0,0.5);
  --shadow-lg:  0 8px 24px rgba(0,0,0,0.6);
  --shadow-xl:  0 16px 48px rgba(0,0,0,0.7);

  /* Transições */
  --transition: 0.25s ease;
  --transition-slow: 0.4s ease;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  background-color: var(--color-black);
  color: var(--color-white-soft);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-accent-light);
}

ul, ol {
  list-style: none;
}

/* ============================================================
   2. TIPOGRAFIA
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-white);
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(var(--fs-3xl), 5vw, var(--fs-5xl)); }
h2 { font-size: clamp(var(--fs-2xl), 3.5vw, var(--fs-4xl)); }
h3 { font-size: clamp(var(--fs-xl), 2.5vw, var(--fs-3xl)); }
h4 { font-size: clamp(var(--fs-lg), 2vw, var(--fs-2xl)); }
h5 { font-size: var(--fs-lg); }
h6 { font-size: var(--fs-base); }

p {
  margin-bottom: var(--space-4);
  color: var(--color-silver);
}

p:last-child { margin-bottom: 0; }

.text-accent { color: var(--color-accent); }
.text-white  { color: var(--color-white); }
.text-gray   { color: var(--color-light-gray); }
.text-center { text-align: center; }
.text-left   { text-align: left; }

/* ============================================================
   3. LAYOUT — CONTAINER & GRID
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-6);
  padding-right: var(--space-6);
}

.container--md {
  max-width: var(--container-md);
}

.section {
  padding-top: var(--space-20);
  padding-bottom: var(--space-20);
}

.section--dark {
  background-color: var(--color-graphite);
}

.section--darker {
  background-color: var(--color-dark);
}

.section--accent {
  background-color: var(--color-accent-dark);
}

.grid {
  display: grid;
  gap: var(--space-8);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.flex {
  display: flex;
  gap: var(--space-6);
}

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

.flex--between {
  align-items: center;
  justify-content: space-between;
}

/* ============================================================
   4. BOTÕES
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-8);
  font-family: var(--font-heading);
  font-size: var(--fs-base);
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  border: 2px solid transparent;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn--primary {
  background-color: var(--color-accent);
  color: var(--color-black);
  border-color: var(--color-accent);
}

.btn--primary:hover {
  background-color: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(46,204,113,0.35);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}

.btn--outline:hover {
  background-color: var(--color-white);
  color: var(--color-black);
  transform: translateY(-2px);
}

.btn--outline-accent {
  background-color: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn--outline-accent:hover {
  background-color: var(--color-accent);
  color: var(--color-black);
  transform: translateY(-2px);
}

.btn--ghost {
  background-color: rgba(255,255,255,0.08);
  color: var(--color-white);
  border-color: rgba(255,255,255,0.15);
}

.btn--ghost:hover {
  background-color: rgba(255,255,255,0.15);
  color: var(--color-white);
}

.btn--sm {
  padding: var(--space-2) var(--space-5);
  font-size: var(--fs-sm);
}

.btn--lg {
  padding: var(--space-4) var(--space-10);
  font-size: var(--fs-md);
}

.btn--full {
  width: 100%;
  justify-content: center;
}

.btn svg, .btn img {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* ============================================================
   5. HEADER & NAVEGAÇÃO
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: rgba(13,13,13,0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background-color var(--transition);
}

.site-header.scrolled {
  background-color: rgba(13,13,13,0.98);
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: var(--space-6);
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
}

.site-logo__mark {
  width: 44px;
  height: 44px;
  background-color: var(--color-accent);
  border-radius: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: var(--fs-lg);
  color: var(--color-black);
  letter-spacing: -0.05em;
  flex-shrink: 0;
}

.site-logo__text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.site-logo__name {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: var(--fs-xl);
  color: var(--color-white);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-logo__tagline {
  font-size: var(--fs-xs);
  color: var(--color-light-gray);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* Navegação principal */
.main-nav {
  display: flex;
  align-items: center;
  gap: 0;
}

.main-nav__list {
  display: flex;
  align-items: center;
  gap: 0;
}

.main-nav__item {
  position: relative;
}

.main-nav__link {
  display: block;
  padding: var(--space-3) var(--space-4);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-silver);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: color var(--transition);
  white-space: nowrap;
}

.main-nav__link:hover,
.main-nav__link.active {
  color: var(--color-accent);
}

/* Submenu */
.main-nav__item--has-sub:hover .main-nav__sub {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.main-nav__sub {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background-color: var(--color-dark);
  border: 1px solid rgba(255,255,255,0.08);
  border-top: 2px solid var(--color-accent);
  border-radius: 0 0 var(--border-radius) var(--border-radius);
  padding: var(--space-2) 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition);
  box-shadow: var(--shadow-lg);
  z-index: 100;
}

.main-nav__sub-link {
  display: block;
  padding: var(--space-3) var(--space-5);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--color-silver);
  text-decoration: none;
  transition: all var(--transition);
  border-left: 2px solid transparent;
}

.main-nav__sub-link:hover {
  color: var(--color-accent);
  background-color: rgba(46,204,113,0.06);
  border-left-color: var(--color-accent);
  padding-left: calc(var(--space-5) + 4px);
}

/* Header CTA */
.header-cta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* Menu hambúrguer */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  z-index: 1100;
}

.hamburger__line {
  display: block;
  width: 26px;
  height: 2px;
  background-color: var(--color-white);
  border-radius: 2px;
  transition: all var(--transition);
}

.hamburger.active .hamburger__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.active .hamburger__line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.hamburger.active .hamburger__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav overlay */
.mobile-nav {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-black);
  overflow-y: auto;
  padding: var(--space-6);
  z-index: 999;
  transform: translateX(100%);
  transition: transform var(--transition-slow);
}

.mobile-nav.open {
  transform: translateX(0);
}

.mobile-nav__list {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: var(--space-8);
}

.mobile-nav__link {
  display: block;
  padding: var(--space-4) 0;
  font-size: var(--fs-lg);
  font-weight: 700;
  color: var(--color-white);
  text-decoration: none;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.mobile-nav__link:hover {
  color: var(--color-accent);
}

.mobile-nav__sub {
  padding-left: var(--space-4);
  border-left: 2px solid var(--color-accent);
  margin: var(--space-2) 0 var(--space-4);
}

.mobile-nav__sub-link {
  display: block;
  padding: var(--space-2) 0;
  font-size: var(--fs-base);
  color: var(--color-silver);
  text-decoration: none;
}

.mobile-nav__sub-link:hover {
  color: var(--color-accent);
}

.mobile-nav__cta {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

/* ============================================================
   6. HERO SECTIONS
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 72px;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(13,13,13,0.92) 0%,
    rgba(13,13,13,0.75) 50%,
    rgba(13,13,13,0.55) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 720px;
  padding: var(--space-20) 0;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: var(--space-5);
}

.hero__eyebrow::before {
  content: '';
  display: block;
  width: 32px;
  height: 2px;
  background-color: var(--color-accent);
}

.hero__title {
  font-size: clamp(2rem, 5vw, 3.75rem);
  font-weight: 900;
  line-height: 1.1;
  color: var(--color-white);
  margin-bottom: var(--space-6);
}

.hero__title span {
  color: var(--color-accent);
}

.hero__subtitle {
  font-size: clamp(var(--fs-base), 2vw, var(--fs-lg));
  color: var(--color-silver);
  margin-bottom: var(--space-10);
  max-width: 600px;
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

/* Hero interno (páginas internas) */
.hero--inner {
  min-height: 360px;
  padding-top: 72px;
}

.hero--inner .hero__content {
  padding: var(--space-16) 0 var(--space-12);
}

.hero--inner .hero__title {
  font-size: clamp(var(--fs-2xl), 4vw, var(--fs-4xl));
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
  font-size: var(--fs-sm);
  color: var(--color-light-gray);
}

.breadcrumb__item a {
  color: var(--color-light-gray);
  text-decoration: none;
  transition: color var(--transition);
}

.breadcrumb__item a:hover {
  color: var(--color-accent);
}

.breadcrumb__sep {
  color: var(--color-gray);
}

.breadcrumb__item--current {
  color: var(--color-accent);
}

/* ============================================================
   7. SECTION HEADERS
   ============================================================ */
.section-header {
  margin-bottom: var(--space-12);
}

.section-header--center {
  text-align: center;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: var(--space-3);
}

.section-eyebrow::before {
  content: '';
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-accent);
}

.section-header--center .section-eyebrow {
  justify-content: center;
}

.section-header--center .section-eyebrow::before {
  display: none;
}

.section-title {
  color: var(--color-white);
  margin-bottom: var(--space-4);
}

.section-desc {
  font-size: var(--fs-md);
  color: var(--color-light-gray);
  max-width: 640px;
  line-height: 1.7;
}

.section-header--center .section-desc {
  margin-left: auto;
  margin-right: auto;
}

/* ============================================================
   8. CARDS
   ============================================================ */
.card {
  background-color: var(--color-dark);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  transition: all var(--transition);
}

.card:hover {
  border-color: rgba(46,204,113,0.25);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card__img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
}

.card__body {
  padding: var(--space-6);
}

.card__eyebrow {
  font-size: var(--fs-xs);
  font-weight: 700;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-2);
}

.card__title {
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--space-3);
}

.card__desc {
  font-size: var(--fs-sm);
  color: var(--color-light-gray);
  line-height: 1.65;
  margin-bottom: var(--space-5);
}

.card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* Card de diferencial */
.diff-card {
  background-color: var(--color-dark);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--border-radius-lg);
  padding: var(--space-8);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.diff-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background-color: var(--color-accent);
  opacity: 0;
  transition: opacity var(--transition);
}

.diff-card:hover {
  border-color: rgba(46,204,113,0.2);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.diff-card:hover::before {
  opacity: 1;
}

.diff-card__icon {
  width: 52px;
  height: 52px;
  background-color: rgba(46,204,113,0.1);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  transition: background-color var(--transition);
}

.diff-card:hover .diff-card__icon {
  background-color: rgba(46,204,113,0.2);
}

.diff-card__icon svg {
  width: 26px;
  height: 26px;
  color: var(--color-accent);
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

.diff-card__title {
  font-size: var(--fs-lg);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--space-3);
}

.diff-card__desc {
  font-size: var(--fs-sm);
  color: var(--color-light-gray);
  line-height: 1.65;
  margin-bottom: 0;
}

/* Card de solução */
.solution-card {
  background-color: var(--color-dark);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.solution-card:hover {
  border-color: rgba(46,204,113,0.25);
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.solution-card__img-wrap {
  position: relative;
  height: 200px;
  overflow: hidden;
}

.solution-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.solution-card:hover .solution-card__img {
  transform: scale(1.05);
}

.solution-card__img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(13,13,13,0.7) 0%, transparent 60%);
}

.solution-card__body {
  padding: var(--space-6);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.solution-card__title {
  font-size: var(--fs-xl);
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: var(--space-3);
}

.solution-card__desc {
  font-size: var(--fs-sm);
  color: var(--color-light-gray);
  line-height: 1.65;
  flex: 1;
  margin-bottom: var(--space-5);
}

.solution-card__cta {
  margin-top: auto;
}

/* ============================================================
   9. SEÇÃO AUTORIDADE / ALIVA
   ============================================================ */
.authority-section {
  background: linear-gradient(135deg, var(--color-graphite) 0%, var(--color-dark) 100%);
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  position: relative;
  overflow: hidden;
}

.authority-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
}

.authority-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.authority-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  background-color: rgba(46,204,113,0.08);
  border: 1px solid rgba(46,204,113,0.2);
  border-radius: var(--border-radius);
  padding: var(--space-3) var(--space-5);
  margin-bottom: var(--space-6);
}

.authority-badge__icon {
  width: 32px;
  height: 32px;
  color: var(--color-accent);
}

.authority-badge__text {
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0;
}

.authority-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-8);
}

.authority-stat__number {
  font-size: var(--fs-3xl);
  font-weight: 900;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: var(--space-1);
}

.authority-stat__label {
  font-size: var(--fs-sm);
  color: var(--color-light-gray);
  margin-bottom: 0;
}

/* ============================================================
   10. FORMULÁRIO
   ============================================================ */
.form-section {
  background-color: var(--color-graphite);
  border-top: 1px solid rgba(255,255,255,0.06);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-group--full {
  grid-column: 1 / -1;
}

.form-label {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-silver);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.form-input,
.form-select,
.form-textarea {
  background-color: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--border-radius);
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-primary);
  font-size: var(--fs-base);
  color: var(--color-white);
  transition: border-color var(--transition);
  outline: none;
  width: 100%;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-gray);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-accent);
  background-color: rgba(46,204,113,0.04);
}

.form-select option {
  background-color: var(--color-dark);
  color: var(--color-white);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

/* ============================================================
   11. FOOTER
   ============================================================ */
.site-footer {
  background-color: var(--color-black);
  border-top: 1px solid rgba(255,255,255,0.06);
}

.footer-main {
  padding: var(--space-20) 0 var(--space-12);
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
}

.footer-brand__logo {
  margin-bottom: var(--space-5);
}

.footer-brand__desc {
  font-size: var(--fs-sm);
  color: var(--color-light-gray);
  line-height: 1.7;
  margin-bottom: var(--space-6);
}

.footer-brand__slogan {
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0;
}

.footer-col__title {
  font-size: var(--fs-sm);
  font-weight: 800;
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-nav__link {
  display: block;
  padding: var(--space-2) 0;
  font-size: var(--fs-sm);
  color: var(--color-light-gray);
  text-decoration: none;
  transition: color var(--transition);
  border-bottom: 1px solid rgba(255,255,255,0.03);
}

.footer-nav__link:hover {
  color: var(--color-accent);
}

.footer-contact__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.footer-contact__icon {
  width: 18px;
  height: 18px;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 2px;
}

.footer-contact__text {
  font-size: var(--fs-sm);
  color: var(--color-light-gray);
  line-height: 1.5;
  margin-bottom: 0;
}

.footer-contact__text a {
  color: var(--color-light-gray);
  text-decoration: none;
}

.footer-contact__text a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  padding: var(--space-6) 0;
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-bottom__copy {
  font-size: var(--fs-xs);
  color: var(--color-gray);
  margin-bottom: 0;
}

.footer-social {
  display: flex;
  gap: var(--space-3);
}

.footer-social__link {
  width: 36px;
  height: 36px;
  background-color: rgba(255,255,255,0.06);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-light-gray);
  text-decoration: none;
  transition: all var(--transition);
}

.footer-social__link:hover {
  background-color: var(--color-accent);
  color: var(--color-black);
}

.footer-social__link svg {
  width: 16px;
  height: 16px;
}

/* ============================================================
   12. WHATSAPP FLUTUANTE
   ============================================================ */
.whatsapp-float {
  position: fixed;
  bottom: 100px;
  right: 24px;
  z-index: 900;
  width: 56px;
  height: 56px;
  background-color: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(37,211,102,0.45);
  text-decoration: none;
  transition: all var(--transition);
  animation: pulse-wa 2.5s infinite;
}

.whatsapp-float:hover {
  transform: scale(1.12);
  box-shadow: 0 6px 24px rgba(37,211,102,0.6);
  background-color: #20bd5a;
}

.whatsapp-float svg {
  width: 30px;
  height: 30px;
  fill: white;
}

@keyframes pulse-wa {
  0%   { box-shadow: 0 4px 16px rgba(37,211,102,0.45); }
  50%  { box-shadow: 0 4px 28px rgba(37,211,102,0.7); }
  100% { box-shadow: 0 4px 16px rgba(37,211,102,0.45); }
}

/* ============================================================
   13. BARRA MOBILE FIXA
   ============================================================ */
.mobile-cta-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 800;
  background-color: var(--color-dark);
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: var(--space-3) var(--space-4);
  gap: var(--space-3);
}

.mobile-cta-bar .btn {
  flex: 1;
  justify-content: center;
  padding: var(--space-3) var(--space-4);
  font-size: var(--fs-sm);
}

/* ============================================================
   14. SEÇÃO CTA FINAL
   ============================================================ */
.cta-section {
  background: linear-gradient(135deg, var(--color-graphite) 0%, var(--color-dark) 100%);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
}

.cta-section__title {
  font-size: clamp(var(--fs-2xl), 4vw, var(--fs-4xl));
  font-weight: 900;
  color: var(--color-white);
  margin-bottom: var(--space-5);
}

.cta-section__desc {
  font-size: var(--fs-md);
  color: var(--color-silver);
  max-width: 600px;
  margin: 0 auto var(--space-10);
  line-height: 1.7;
}

.cta-section__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: center;
}

/* ============================================================
   15. TABELA TÉCNICA
   ============================================================ */
.tech-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--fs-sm);
}

.tech-table th,
.tech-table td {
  padding: var(--space-3) var(--space-5);
  text-align: left;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.tech-table th {
  background-color: rgba(46,204,113,0.08);
  color: var(--color-accent);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: var(--fs-xs);
}

.tech-table td {
  color: var(--color-silver);
}

.tech-table tr:hover td {
  background-color: rgba(255,255,255,0.02);
}

/* ============================================================
   16. FAQ
   ============================================================ */
.faq-item {
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) 0;
  font-family: var(--font-heading);
  font-size: var(--fs-md);
  font-weight: 700;
  color: var(--color-white);
  cursor: pointer;
  text-align: left;
  transition: color var(--transition);
  gap: var(--space-4);
}

.faq-question:hover {
  color: var(--color-accent);
}

.faq-question__icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  color: var(--color-accent);
  transition: transform var(--transition);
}

.faq-item.open .faq-question__icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.faq-item.open .faq-answer {
  max-height: 300px;
}

.faq-answer__inner {
  padding-bottom: var(--space-5);
  color: var(--color-light-gray);
  font-size: var(--fs-base);
  line-height: 1.7;
}

/* ============================================================
   17. SEÇÃO CLIENTES
   ============================================================ */
.clients-logos {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  align-items: center;
  justify-content: center;
}

.client-logo {
  background-color: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--border-radius);
  padding: var(--space-4) var(--space-8);
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 140px;
  height: 72px;
  transition: all var(--transition);
}

.client-logo:hover {
  background-color: rgba(46,204,113,0.06);
  border-color: rgba(46,204,113,0.2);
}

.client-logo__name {
  font-size: var(--fs-sm);
  font-weight: 800;
  color: var(--color-light-gray);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0;
}

/* ============================================================
   18. UTILITÁRIOS
   ============================================================ */
.mt-auto { margin-top: auto; }
.mb-0    { margin-bottom: 0; }
.mb-4    { margin-bottom: var(--space-4); }
.mb-6    { margin-bottom: var(--space-6); }
.mb-8    { margin-bottom: var(--space-8); }
.mb-12   { margin-bottom: var(--space-12); }

.pt-0    { padding-top: 0; }
.pb-0    { padding-bottom: 0; }

.hidden  { display: none; }

.divider {
  height: 1px;
  background-color: rgba(255,255,255,0.06);
  margin: var(--space-8) 0;
}

.tag {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  background-color: rgba(46,204,113,0.1);
  border: 1px solid rgba(46,204,113,0.2);
  border-radius: 2px;
  font-size: var(--fs-xs);
  font-weight: 700;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background-color: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--border-radius);
  font-size: var(--fs-sm);
  color: var(--color-silver);
}

.badge--accent {
  background-color: rgba(46,204,113,0.1);
  border-color: rgba(46,204,113,0.2);
  color: var(--color-accent);
}

/* ============================================================
   19. SCROLL ANIMATIONS
   ============================================================ */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in--delay-1 { transition-delay: 0.1s; }
.fade-in--delay-2 { transition-delay: 0.2s; }
.fade-in--delay-3 { transition-delay: 0.3s; }
.fade-in--delay-4 { transition-delay: 0.4s; }
.fade-in--delay-5 { transition-delay: 0.5s; }

/* ============================================================
   20. RESPONSIVIDADE
   ============================================================ */

/* Tablet grande / Notebook pequeno */
@media (max-width: 1100px) {
  .footer-main {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-10);
  }

  .authority-inner {
    gap: var(--space-10);
  }
}

/* Tablet */
@media (max-width: 900px) {
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }

  .authority-inner {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .authority-stats {
    grid-template-columns: repeat(3, 1fr);
  }

  .main-nav,
  .header-cta .btn--outline {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .mobile-nav {
    display: block;
  }

  .hero__content {
    max-width: 100%;
  }
}

/* Mobile grande */
@media (max-width: 640px) {
  :root {
    --space-20: 4rem;
    --space-16: 3rem;
    --space-12: 2.5rem;
  }

  .container {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }

  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }

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

  .form-group--full {
    grid-column: 1;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .hero__actions {
    flex-direction: column;
  }

  .hero__actions .btn {
    width: 100%;
    justify-content: center;
  }

  .cta-section__actions {
    flex-direction: column;
    align-items: center;
  }

  .cta-section__actions .btn {
    width: 100%;
    max-width: 320px;
  }

  .authority-stats {
    grid-template-columns: 1fr 1fr;
  }

  .mobile-cta-bar {
    display: flex;
  }

  body {
    padding-bottom: 72px;
  }

  .whatsapp-float {
    bottom: 84px;
    right: 16px;
  }
}

/* Mobile pequeno */
@media (max-width: 380px) {
  .site-logo__text { display: none; }
  .btn--lg {
    padding: var(--space-3) var(--space-6);
    font-size: var(--fs-base);
  }
}

/* ============================================================
   21. COMPONENTES ADICIONAIS
   ============================================================ */

/* Variável faltante */
:root {
  --color-card-bg: var(--color-dark);
}

/* --- Stats Grid (clientes-projetos) --- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
  text-align: center;
}

.stat-item__number {
  font-family: var(--font-heading);
  font-size: clamp(var(--fs-3xl), 5vw, 4rem);
  font-weight: 900;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: var(--space-2);
}

.stat-item__label {
  font-size: var(--fs-sm);
  color: var(--color-light-gray);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}

/* --- Depoimentos --- */
.testimonial {
  background-color: var(--color-dark);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--border-radius-lg);
  padding: var(--space-8);
  position: relative;
  transition: all var(--transition);
}

.testimonial:hover {
  border-color: rgba(46,204,113,0.2);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.testimonial::before {
  content: '\201C';
  position: absolute;
  top: var(--space-4);
  left: var(--space-6);
  font-size: 5rem;
  line-height: 1;
  color: var(--color-accent);
  opacity: 0.25;
  font-family: Georgia, serif;
}

.testimonial__text {
  font-size: var(--fs-base);
  color: var(--color-silver);
  line-height: 1.75;
  margin-bottom: var(--space-6);
  font-style: italic;
  position: relative;
  z-index: 1;
}

.testimonial__footer {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.testimonial__author {
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--color-white);
}

.testimonial__company {
  font-size: var(--fs-xs);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* --- Layout de Contato --- */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: start;
}

.contact-form-wrap {
  background-color: var(--color-dark);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--border-radius-lg);
  padding: var(--space-10);
}

.contact-form__title {
  font-size: var(--fs-2xl);
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: var(--space-3);
}

.contact-form__desc {
  font-size: var(--fs-sm);
  color: var(--color-light-gray);
  margin-bottom: var(--space-8);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  margin-bottom: var(--space-5);
}

.form-group {
  margin-bottom: var(--space-5);
}

.form-error {
  font-size: var(--fs-xs);
  color: #e74c3c;
  margin-top: var(--space-1);
  display: block;
  min-height: 16px;
}

.form-success {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  background-color: rgba(46,204,113,0.1);
  border: 1px solid rgba(46,204,113,0.3);
  border-radius: var(--border-radius);
  padding: var(--space-4) var(--space-5);
  margin-top: var(--space-5);
}

.form-success p {
  font-size: var(--fs-sm);
  color: var(--color-accent);
  margin-bottom: 0;
}

/* --- Info de Contato --- */
.contact-info__title {
  font-size: var(--fs-2xl);
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: var(--space-8);
}

.contact-channel {
  display: flex;
  align-items: flex-start;
  gap: var(--space-5);
  padding: var(--space-6);
  background-color: var(--color-dark);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--border-radius-lg);
  margin-bottom: var(--space-4);
  transition: all var(--transition);
}

.contact-channel:hover {
  border-color: rgba(46,204,113,0.2);
}

.contact-channel__icon {
  width: 48px;
  height: 48px;
  background-color: rgba(46,204,113,0.1);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-accent);
}

.contact-channel__icon--wa {
  background-color: rgba(37,211,102,0.15);
  color: #25D366;
}

.contact-channel__icon svg {
  width: 24px;
  height: 24px;
}

.contact-channel__body {
  flex: 1;
}

.contact-channel__title {
  font-size: var(--fs-base);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--space-1);
}

.contact-channel__desc {
  font-size: var(--fs-sm);
  color: var(--color-light-gray);
  margin-bottom: var(--space-3);
}

.contact-channel__link {
  font-size: var(--fs-base);
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition);
}

.contact-channel__link:hover {
  color: var(--color-accent-light);
}

/* --- Filtros de Equipamentos --- */
.eq-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
  margin-bottom: var(--space-10);
}

.eq-filter-btn {
  padding: var(--space-2) var(--space-6);
  background-color: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--border-radius);
  font-family: var(--font-heading);
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--color-silver);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: all var(--transition);
}

.eq-filter-btn:hover,
.eq-filter-btn.active {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-black);
}

.eq-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.eq-item {
  transition: all var(--transition);
}

.eq-item.hidden {
  display: none;
}

/* Specs de equipamento */
.eq-specs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  margin-bottom: var(--space-5);
  padding: var(--space-4);
  background-color: rgba(255,255,255,0.03);
  border-radius: var(--border-radius);
  border: 1px solid rgba(255,255,255,0.05);
}

.eq-spec {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.eq-spec__label {
  font-size: var(--fs-xs);
  color: var(--color-gray);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
}

.eq-spec__value {
  font-size: var(--fs-sm);
  color: var(--color-accent);
  font-weight: 700;
}

/* Badge no card */
.card__badge {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  padding: var(--space-1) var(--space-3);
  font-size: var(--fs-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-radius: var(--border-radius);
  z-index: 1;
}

.card__badge--locacao {
  background-color: rgba(46,204,113,0.15);
  color: var(--color-accent);
  border: 1px solid rgba(46,204,113,0.3);
}

.card {
  position: relative;
}

/* --- Tabela Comparativa --- */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--fs-sm);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
}

.comparison-table th,
.comparison-table td {
  padding: var(--space-4) var(--space-6);
  text-align: left;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.comparison-table thead tr {
  background-color: rgba(46,204,113,0.1);
}

.comparison-table th {
  color: var(--color-accent);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: var(--fs-xs);
}

.comparison-table td {
  color: var(--color-silver);
}

.comparison-table td:first-child {
  color: var(--color-white);
  font-weight: 600;
}

.comparison-table tr:hover td {
  background-color: rgba(255,255,255,0.02);
}

.comparison-table tbody tr:nth-child(even) {
  background-color: rgba(255,255,255,0.01);
}

/* --- Hero Short --- */
.hero--short {
  min-height: 280px;
}

.hero--short .hero__content {
  padding: var(--space-12) 0 var(--space-10);
}

/* ============================================================
   22. RESPONSIVIDADE ADICIONAL
   ============================================================ */
@media (max-width: 900px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-layout {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .eq-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }

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

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

  .contact-form-wrap {
    padding: var(--space-6);
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .comparison-table th,
  .comparison-table td {
    padding: var(--space-3) var(--space-4);
    font-size: var(--fs-xs);
  }
}