/* CSS Variables for Dark and Light Themes */
:root {
  /* Dark Mode Palette (Default) */
  --bg-base: #0a0b0d;
  --bg-surface: #12141c;
  --bg-surface-glass: rgba(18, 20, 28, 0.7);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: var(--accent-blue);
  
  --text-primary: #f1f3f5;
  --text-secondary: #9ea5b0;
  --text-muted: #626875;
  
  /* Metallurgical Accents */
  --accent-blue: #3182ce;
  --accent-blue-rgb: 49, 130, 206;
  --accent-red: #c81412;
  --accent-red-rgb: 200, 20, 18;
  
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.5);
  --shadow-md: 0 8px 16px rgba(0,0,0,0.6);
  --shadow-lg: 0 16px 32px rgba(0,0,0,0.7);
  --glass-blur: blur(12px);
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.15s ease;
  
  --font-sans: 'Outfit', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --container-width: 1200px;
}

/* Light Mode Overrides */
body.light-mode {
  --bg-base: #f4f6f9;
  --bg-surface: #ffffff;
  --bg-surface-glass: rgba(255, 255, 255, 0.8);
  --border-color: rgba(0, 0, 0, 0.08);
  --border-focus: var(--accent-blue-dark);
  
  --text-primary: #1e2229;
  --text-secondary: #5a6270;
  --text-muted: #8c96a3;
  
  --accent-blue: #2b6cb0;
  --accent-blue-rgb: 43, 108, 176;
  --accent-red: #a80f0d;
  --accent-red-rgb: 168, 15, 13;
  
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
  --shadow-md: 0 8px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 16px 32px rgba(0,0,0,0.12);
}

/* Global Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color 0.4s ease, color 0.4s ease;
}

/* Layout Elements */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; margin-bottom: 1.5rem; position: relative; display: inline-block; }
h3 { font-size: 1.5rem; }

/* Elegant Section Titles */
.section-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 50px;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-red), var(--accent-blue));
  border-radius: 2px;
  transition: width 0.3s ease;
}

.section-title:hover::after {
  width: 80px;
}

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

/* Header & Navigation */
.main-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: var(--bg-surface-glass);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition-smooth);
}

.main-header.scrolled {
  box-shadow: var(--shadow-md);
  padding: 0.5rem 0;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
  transition: var(--transition-smooth);
}

.main-header.scrolled .header-container {
  height: 64px;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-img {
  height: 45px;
  width: auto;
  object-fit: contain;
  transition: var(--transition-smooth);
}

.main-header.scrolled .logo-img {
  height: 38px;
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  background: linear-gradient(135deg, #ffffff 30%, var(--accent-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

body.light-mode .logo-text {
  background: linear-gradient(135deg, #1e2229 30%, var(--accent-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 2rem;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--text-secondary);
  padding: 0.5rem 0;
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-red);
  transition: var(--transition-smooth);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.controls {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Theme Toggle Button */
.btn-toggle {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-smooth);
  background-color: rgba(255, 255, 255, 0.03);
}

.btn-toggle:hover {
  background-color: rgba(255, 255, 255, 0.08);
  border-color: var(--accent-blue);
  transform: scale(1.05);
}

.btn-toggle svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.btn-toggle .sun-icon { display: none; }
.btn-toggle .moon-icon { display: block; }

body.light-mode .btn-toggle .sun-icon { display: block; }
body.light-mode .btn-toggle .moon-icon { display: none; }

/* Menu Toggle (Mobile Hamburger) */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 0.5rem;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: currentColor;
  margin: 5px 0;
  transition: var(--transition-smooth);
}

/* Hero Section */
.hero-section {
  position: relative;
  padding: 160px 0 100px;
  background: radial-gradient(circle at 80% 20%, rgba(var(--accent-blue-rgb), 0.1), transparent 45%),
              radial-gradient(circle at 10% 80%, rgba(var(--accent-red-rgb), 0.05), transparent 45%),
              var(--bg-base);
  min-height: 80vh;
  display: flex;
  align-items: center;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
  align-items: center;
}

.hero-content {
  max-width: 650px;
}

.hero-tag {
  display: inline-block;
  padding: 0.35rem 1rem;
  background: rgba(var(--accent-red-rgb), 0.15);
  border: 1px solid rgba(var(--accent-red-rgb), 0.3);
  color: var(--accent-red);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: 3.5rem;
  line-height: 1.15;
  margin-bottom: 1.5rem;
}

.hero-title span {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-red));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Premium Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 2rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition-smooth);
  gap: 0.5rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-blue), #0077b6);
  color: #ffffff;
  border: none;
  box-shadow: 0 4px 14px rgba(0, 180, 216, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 180, 216, 0.5);
  filter: brightness(1.1);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background-color: rgba(255,255,255,0.03);
  border-color: var(--text-secondary);
}

body.light-mode .btn-secondary:hover {
  background-color: rgba(0,0,0,0.02);
}

.btn-whatsapp {
  background-color: #25d366;
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.3);
  border: none;
}

.btn-whatsapp:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.5);
  background-color: #20ba5a;
}

.hero-visual {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  aspect-ratio: 4/3;
  display: flex;
}

.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.hero-visual:hover .hero-img {
  transform: scale(1.05);
}

.hero-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 11, 13, 0.7), transparent);
  pointer-events: none;
}

/* Sections General */
.section {
  padding: 80px 0;
  position: relative;
}

.section-alt {
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.section-header-center {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 4rem;
}

.section-header-center h2::after {
  left: 50%;
  transform: translateX(-50%);
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-top: 0.5rem;
}

/* Grid & Cards System */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.card {
  background-color: var(--bg-surface-glass);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-red));
  opacity: 0;
  transition: var(--transition-smooth);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: rgba(var(--accent-blue-rgb), 0.3);
}

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

.card-icon {
  width: 48px;
  height: 48px;
  background: rgba(var(--accent-blue-rgb), 0.1);
  color: var(--accent-blue);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-size: 1.25rem;
}

.card-title {
  margin-bottom: 0.75rem;
}

.card-text {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Features/Destaques (Home) */
.features-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-top: 2rem;
}

.feature-stat {
  text-align: center;
  padding: 1.5rem;
  border-radius: 12px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
}

.stat-number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--accent-red);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Showcase (Home Products Summary) */
.showcase-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 3rem;
}

.showcase-item {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  aspect-ratio: 16/10;
  box-shadow: var(--shadow-sm);
  display: flex;
}

.showcase-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.showcase-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 11, 13, 0.9) 20%, rgba(10, 11, 13, 0.2));
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
  transition: var(--transition-smooth);
}

body.light-mode .showcase-overlay {
  background: linear-gradient(to top, rgba(255, 255, 255, 0.95) 20%, rgba(255, 255, 255, 0.3));
}

.showcase-title {
  font-size: 1.25rem;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.showcase-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.showcase-item:hover .showcase-img {
  transform: scale(1.08);
}

.showcase-item:hover .showcase-overlay {
  padding-bottom: 1.75rem;
}

/* Interactive Timeline (Quem Somos) */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 4rem auto 0;
  padding: 2rem 0;
}

.timeline::after {
  content: '';
  position: absolute;
  width: 2px;
  background: var(--border-color);
  top: 0;
  bottom: 0;
  left: 50%;
  margin-left: -1px;
}

.timeline-item {
  padding: 1rem 3rem;
  position: relative;
  background: transparent;
  width: 50%;
}

.timeline-item:nth-child(even) {
  left: 50%;
}

.timeline-item:nth-child(odd) {
  left: 0;
  text-align: right;
}

.timeline-item::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  right: -8px;
  background-color: var(--bg-base);
  border: 4px solid var(--accent-blue);
  border-radius: 50%;
  top: 1.5rem;
  z-index: 1;
  transition: var(--transition-smooth);
}

.timeline-item:nth-child(even)::after {
  left: -8px;
}

.timeline-item:hover::after {
  background-color: var(--accent-red);
  border-color: var(--accent-red);
  transform: scale(1.25);
}

.timeline-date {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--accent-red);
  margin-bottom: 0.5rem;
}

.timeline-content {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  display: inline-block;
  text-align: left;
}

/* Products Catalog (Produtos) */
.catalog-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2.5rem;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.search-wrapper {
  position: relative;
  flex: 1;
  max-width: 400px;
  min-width: 280px;
}

.search-input {
  width: 100%;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.75rem 1rem 0.75rem 2.5rem;
  border-radius: 8px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: var(--transition-smooth);
}

.search-input:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(0, 180, 216, 0.15);
}

.search-icon {
  position: absolute;
  left: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  width: 16px;
  height: 16px;
}

.filter-group {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.filter-btn {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 500;
  font-size: 0.9rem;
  transition: var(--transition-fast);
}

.filter-btn:hover {
  background-color: rgba(255,255,255,0.03);
  color: var(--text-primary);
}

body.light-mode .filter-btn:hover {
  background-color: rgba(0,0,0,0.02);
}

.filter-btn.active {
  background-color: var(--accent-blue);
  color: #ffffff;
  border-color: var(--accent-blue);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2rem;
}

.product-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: rgba(var(--accent-blue-rgb), 0.3);
}

.product-card-img-wrapper {
  position: relative;
  aspect-ratio: 4/3;
  background-color: rgba(255, 255, 255, 0.02);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-bottom: 1px solid var(--border-color);
}

.product-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.product-card:hover .product-img {
  transform: scale(1.08);
}


/* SVG or CSS based fallback representation in product image */
.product-card-img-fallback {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at center, rgba(var(--accent-blue-rgb), 0.1) 0%, transparent 70%);
  color: var(--accent-blue);
}

.product-card-img-fallback svg {
  width: 64px;
  height: 64px;
  opacity: 0.6;
  transition: var(--transition-smooth);
}

.product-card:hover .product-card-img-fallback svg {
  transform: scale(1.15) rotate(15deg);
  opacity: 0.9;
  color: var(--accent-red);
}

.product-info {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-category {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--accent-red);
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.product-title {
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.product-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.product-cta {
  width: 100%;
  margin-top: auto;
}

/* Quality Policy Display (Qualidade) */
.quality-banner {
  background: linear-gradient(135deg, rgba(var(--accent-blue-rgb), 0.08) 0%, rgba(var(--accent-red-rgb), 0.05) 100%);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 3rem;
  margin-bottom: 4rem;
  position: relative;
  overflow: hidden;
}

.quality-banner-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: center;
}

.quality-quote {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}

.quality-steps {
  list-style: none;
}

.quality-steps li {
  position: relative;
  padding-left: 2rem;
  margin-bottom: 1rem;
  font-weight: 500;
}

.quality-steps li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent-red);
  font-weight: 800;
  font-size: 1.1rem;
}

.quality-certificates {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.cert-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 1.5rem;
  border-radius: 12px;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
}

.cert-card:hover {
  border-color: var(--accent-blue);
  transform: translateY(-2px);
}

.cert-icon {
  font-size: 2rem;
  color: var(--accent-blue);
}

.cert-info h4 {
  font-size: 1.05rem;
  margin-bottom: 0.25rem;
}

.cert-info p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Contact Details & Info (Contato) */
.contact-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 4rem;
  align-items: flex-start;
}

.contact-info-panel {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.contact-card-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-detail-card {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 1.5rem;
  border-radius: 12px;
}

.contact-detail-icon {
  width: 44px;
  height: 44px;
  background-color: rgba(var(--accent-blue-rgb), 0.1);
  color: var(--accent-blue);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  flex-shrink: 0;
}

.contact-detail-title {
  font-size: 0.85rem;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--accent-red);
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.contact-detail-content {
  font-size: 1.05rem;
  font-weight: 500;
}

.contact-detail-sub {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 0.15rem;
}

.contact-map-container {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  height: 400px;
}

.contact-map-iframe {
  width: 100%;
  height: 100%;
  border: none;
  filter: grayscale(1) invert(0.9) contrast(1.2); /* Dark industrial theme map */
  transition: var(--transition-smooth);
}

body.light-mode .contact-map-iframe {
  filter: none;
}

/* Footer */
.main-footer {
  background-color: #050608;
  border-top: 1px solid var(--border-color);
  padding: 5rem 0 2rem;
  color: var(--text-secondary);
}

body.light-mode .main-footer {
  background-color: #0e1117;
  color: #a0aec0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-brand h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
  color: #ffffff;
}

.footer-brand p {
  font-size: 0.9rem;
  max-width: 320px;
  margin-bottom: 1.5rem;
}

.footer-links-col h4, .footer-contact-col h4 {
  color: #ffffff;
  font-size: 1.05rem;
  margin-bottom: 1.5rem;
}

body.light-mode .footer-brand h3,
body.light-mode .footer-links-col h4,
body.light-mode .footer-contact-col h4 {
  color: #ffffff;
}

.footer-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links-list a {
  font-size: 0.9rem;
}

.footer-links-list a:hover {
  color: var(--accent-blue);
  padding-left: 4px;
}

.footer-contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  font-size: 0.9rem;
}

.footer-contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.footer-contact-list svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
  margin-top: 3px;
  flex-shrink: 0;
  color: var(--accent-blue);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Call to Action Banner (Atalhos Rápidos) */
.cta-banner {
  background: radial-gradient(circle at 10% 20%, rgba(var(--accent-red-rgb), 0.15), transparent 45%),
              linear-gradient(135deg, var(--bg-surface), #0f1118);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 4rem 3rem;
  text-align: center;
  box-shadow: var(--shadow-lg);
  margin-bottom: 2rem;
}

.cta-banner-content {
  max-width: 650px;
  margin: 0 auto;
}

.cta-banner-title {
  font-size: 2.25rem;
  margin-bottom: 1rem;
}

.cta-banner-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.cta-banner-buttons {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
  animation: fadeIn 0.8s ease forwards;
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
  }
  
  .hero-content {
    max-width: 100%;
    margin: 0 auto;
  }
  
  .hero-buttons {
    justify-content: center;
  }
  
  .hero-visual {
    max-width: 500px;
    margin: 0 auto;
  }
  
  .timeline::after {
    left: 30px;
  }
  
  .timeline-item {
    width: 100%;
    left: 0 !important;
    text-align: left !important;
    padding-left: 60px;
    padding-right: 0;
  }
  
  .timeline-item::after {
    left: 22px !important;
    right: auto !important;
  }
  
  .features-container {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .quality-banner-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  h1 { font-size: 2.25rem; }
  h2 { font-size: 1.75rem; }
  
  .hero-title {
    font-size: 2.75rem;
  }
  
  .nav-menu {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background-color: var(--bg-surface);
    flex-direction: column;
    padding: 2rem;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    gap: 1.5rem;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-smooth);
    z-index: 999;
  }
  
  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
  
  .menu-toggle {
    display: block;
  }
  
  .menu-toggle.open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .menu-toggle.open span:nth-child(2) {
    opacity: 0;
  }
  
  .menu-toggle.open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
  }
  
  .showcase-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .features-container {
    grid-template-columns: 1fr;
  }
  
  .hero-title {
    font-size: 2.25rem;
  }
  
  .cta-banner {
    padding: 2.5rem 1.5rem;
  }
  
  .cta-banner-title {
    font-size: 1.75rem;
  }
}

/* Certificate Layout & Details */
.certificates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2.5rem;
  margin-top: 3rem;
}

.cert-display-card {
  background-color: var(--bg-surface-glass);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
}

.cert-display-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-blue);
  box-shadow: var(--shadow-lg);
}

.cert-img-container {
  padding: 1.5rem;
  background-color: rgba(255, 255, 255, 0.02);
  display: flex;
  justify-content: center;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  aspect-ratio: 16/11;
  overflow: hidden;
}

body.light-mode .cert-img-container {
  background-color: rgba(0, 0, 0, 0.02);
}

.cert-img-preview {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
}

.cert-display-card:hover .cert-img-preview {
  transform: scale(1.03);
}

.cert-card-body {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  gap: 1rem;
}

.cert-card-body h3 {
  font-size: 1.35rem;
  color: var(--text-primary);
}

.cert-scope {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.cert-scope strong {
  color: var(--accent-red);
}

.cert-details {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.cert-actions {
  display: flex;
  gap: 1rem;
  margin-top: auto;
  flex-wrap: wrap;
}

.cert-actions .btn {
  flex: 1;
  min-width: 150px;
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
}

@media (max-width: 768px) {
  .certificates-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

/* Clients Logo Section Styles */
.client-logos-section {
  padding: 3.5rem 0;
  border-bottom: 1px solid var(--border-color);
  background-color: rgba(var(--accent-blue-rgb), 0.02);
}

.client-logos-title {
  text-align: center;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
}

.clients-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 3rem 4rem;
}

.client-logo-item {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 45px;
  max-width: 140px;
  transition: var(--transition-smooth);
}

.client-logo-img {
  max-height: 100%;
  max-width: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  /* Monochromatic filter for a premium, clean brand integration */
  filter: grayscale(100%) opacity(40%);
  transition: var(--transition-smooth);
}

.client-logo-item:hover .client-logo-img {
  filter: grayscale(0%) opacity(85%);
  transform: scale(1.05);
}

/* Light Mode adaptations */
body.light-mode .client-logo-img {
  filter: grayscale(100%) opacity(60%);
}

body.light-mode .client-logo-item:hover .client-logo-img {
  filter: grayscale(0%) opacity(95%);
}

@media (max-width: 768px) {
  .client-logos-section {
    padding: 2.5rem 0;
  }
  .clients-grid {
    gap: 2rem 2.5rem;
  }
  .client-logo-item {
    height: 35px;
    max-width: 110px;
  }
}