/* ==========================================================================
   Segurança Web - Inotec Company
   Design System e Estilos
   ========================================================================== */

/* ==========================================================================
   1. VARIÁVEIS CSS
   ========================================================================== */

:root {
  /* Cores principais */
  --primary: #0B3954;
  --accent: #C9A961;
  --bg: #FAFAFA;
  --text: #1F2937;
  
  /* Escala de cinzas */
  --gray-50: #F9FAFB;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-400: #9CA3AF;
  --gray-500: #6B7280;
  --gray-600: #4B5563;
  --gray-700: #374151;
  --gray-800: #1F2937;
  --gray-900: #111827;
  
  /* Cores de status */
  --success: #10B981;
  --warning: #F59E0B;
  --error: #EF4444;
  --info: #3B82F6;
  
  /* Tipografia */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  
  /* Espaçamento */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;
  
  /* Border radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Sombras */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  
  /* Transições */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

/* ==========================================================================
   2. RESET E BASE
   ========================================================================== */

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background-color: var(--bg);
  overflow-x: hidden;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
}

input,
button,
textarea,
select {
  font: inherit;
}

p,
h1,
h2,
h3,
h4,
h5,
h6 {
  overflow-wrap: break-word;
}

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

/* ==========================================================================
   3. UTILITÁRIOS
   ========================================================================== */

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

@media (min-width: 768px) {
  .container {
    padding: 0 2rem;
  }
}

/* Animações */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

[data-animate] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

[data-animate].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Suporte a prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  [data-animate] {
    opacity: 1;
    transform: none;
  }
}

/* ==========================================================================
   4. HEADER
   ========================================================================== */

.header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-200);
  z-index: var(--z-sticky);
  transition: all var(--transition-base);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.logo {
  display: flex;
  align-items: center;
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  color: var(--primary);
  text-decoration: none;
  transition: transform var(--transition-fast);
}

.logo:hover {
  transform: scale(1.05);
  text-decoration: none;
}

.logo:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

.nav-menu {
  display: none;
  gap: 2rem;
}

.nav-menu a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--gray-700);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition-base);
}

.nav-menu a:hover {
  color: var(--primary);
}

.nav-menu a:hover::after {
  width: 100%;
}

@media (min-width: 768px) {
  .nav-menu {
    display: flex;
  }
}

/* Menu Mobile */
.menu-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: var(--z-fixed);
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--primary);
  transition: all var(--transition-base);
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: rotate(45deg) translate(7px, 7px);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

@media (min-width: 768px) {
  .menu-toggle {
    display: none;
  }
}

/* ==========================================================================
   5. HERO
   ========================================================================== */

.hero {
  position: relative;
  padding: 6rem 0 4rem;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary) 0%, #0a5a7a 50%, var(--accent) 100%);
  background-size: 200% 200%;
  animation: gradientShift 15s ease infinite;
  opacity: 0.95;
  z-index: -1;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  animation: fadeInUp 0.8s var(--transition-base);
}

.hero-badge {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-full);
  color: white;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
  color: white;
  margin-bottom: 1.5rem;
}

.hero-title .highlight {
  color: var(--accent);
}

.hero-subtitle {
  font-size: clamp(1.125rem, 2vw, 1.25rem);
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2rem;
}

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

/* ==========================================================================
   6. BOTÕES
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 1.75rem;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1;
  text-align: center;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: white;
  box-shadow: 0 4px 14px 0 rgba(201, 169, 97, 0.4);
}

.btn-primary:hover {
  background: #b89050;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px 0 rgba(201, 169, 97, 0.5);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.3);
  border-color: rgba(255, 255, 255, 0.5);
}

.btn-block {
  width: 100%;
}

/* ==========================================================================
   7. SEÇÕES
   ========================================================================== */

section {
  padding: 4rem 0;
}

@media (min-width: 768px) {
  section {
    padding: 6rem 0;
  }
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--gray-600);
  max-width: 700px;
  margin: 0 auto;
}

.lead-text {
  font-size: 1.25rem;
  line-height: 1.7;
  color: var(--gray-700);
  margin-bottom: 1.5rem;
}

/* ==========================================================================
   8. SEÇÃO IMPORTÂNCIA
   ========================================================================== */

.importance-section {
  background: white;
}

.importance-content {
  display: grid;
  gap: 3rem;
}

@media (min-width: 768px) {
  .importance-content {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

.importance-text p {
  margin-bottom: 1rem;
}

.importance-stats {
  display: grid;
  gap: 1.5rem;
}

.stat-card {
  padding: 2rem;
  background: linear-gradient(135deg, var(--primary) 0%, #0a5a7a 100%);
  border-radius: var(--radius-xl);
  text-align: center;
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-base);
}

.stat-card:hover {
  transform: translateY(-5px);
}

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

.stat-label {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.4;
}

/* ==========================================================================
   9. SEÇÃO MFA
   ========================================================================== */

.mfa-section {
  background: var(--gray-50);
}

.mfa-intro {
  max-width: 800px;
  margin: 0 auto 3rem;
  text-align: center;
}

.mfa-types-grid {
  display: grid;
  gap: 2rem;
  margin-top: 3rem;
}

@media (min-width: 640px) {
  .mfa-types-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .mfa-types-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.mfa-type-card {
  position: relative;
  padding: 2rem;
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.mfa-type-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.mfa-icon {
  margin-bottom: 1.5rem;
}

.mfa-type-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.mfa-type-subtitle {
  font-size: 0.875rem;
  color: var(--gray-500);
  margin-bottom: 1rem;
}

.mfa-type-description {
  font-size: 0.9375rem;
  color: var(--gray-600);
  line-height: 1.6;
}

.mfa-type-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.375rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  background: var(--gray-200);
  color: var(--gray-700);
}

.mfa-type-badge.recommended {
  background: rgba(16, 185, 129, 0.1);
  color: var(--success);
}

.mfa-type-badge.best {
  background: rgba(201, 169, 97, 0.1);
  color: var(--accent);
}

.mfa-type-badge.warning {
  background: rgba(245, 158, 11, 0.1);
  color: var(--warning);
}

/* ==========================================================================
   10. SEÇÃO RECOMENDAÇÃO
   ========================================================================== */

.recommendation-section {
  background: white;
}

.recommendation-box {
  max-width: 900px;
  margin: 0 auto;
  padding: 3rem;
  background: linear-gradient(135deg, rgba(11, 57, 84, 0.05) 0%, rgba(201, 169, 97, 0.05) 100%);
  border: 2px solid var(--accent);
  border-radius: var(--radius-2xl);
}

.recommendation-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.recommendation-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
}

.recommendation-content {
  display: grid;
  gap: 2rem;
}

@media (min-width: 768px) {
  .recommendation-content {
    grid-template-columns: repeat(3, 1fr);
  }
}

.recommendation-item h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 0.75rem;
}

.recommendation-item p {
  font-size: 0.9375rem;
  color: var(--gray-600);
  line-height: 1.6;
}

/* ==========================================================================
   11. SEÇÃO BOAS PRÁTICAS
   ========================================================================== */

.practices-section {
  background: var(--gray-50);
}

.practices-grid {
  display: grid;
  gap: 2rem;
  margin-top: 3rem;
}

@media (min-width: 768px) {
  .practices-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.practice-category {
  padding: 2rem;
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}

.practice-category-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 1.5rem;
}

.practice-list {
  list-style: none;
}

.practice-list li {
  position: relative;
  padding-left: 1.75rem;
  margin-bottom: 1rem;
  font-size: 0.9375rem;
  color: var(--gray-700);
  line-height: 1.6;
}

.practice-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

/* ==========================================================================
   12. SEÇÃO ATIVAÇÃO
   ========================================================================== */

.activation-section {
  background: white;
}

.activation-steps {
  max-width: 800px;
  margin: 0 auto;
}

.step-item {
  display: flex;
  gap: 2rem;
  margin-bottom: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--gray-200);
}

.step-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.step-number {
  flex-shrink: 0;
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary) 0%, #0a5a7a 100%);
  color: white;
  font-size: 1.5rem;
  font-weight: 700;
  border-radius: 50%;
  box-shadow: var(--shadow-lg);
}

.step-content {
  flex: 1;
}

.step-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.75rem;
}

.step-description {
  font-size: 1rem;
  color: var(--gray-600);
  line-height: 1.7;
}

.step-description a {
  color: var(--accent);
  text-decoration: underline;
}

.step-description a:hover {
  color: var(--primary);
}

.activation-cta {
  text-align: center;
  margin-top: 3rem;
  padding: 2rem;
  background: var(--gray-50);
  border-radius: var(--radius-xl);
}

.activation-cta-text {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 1rem;
}

/* ==========================================================================
   13. SEÇÃO FAQ
   ========================================================================== */

.faq-section {
  background: var(--gray-50);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  margin-bottom: 1rem;
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--transition-base);
}

.faq-item:hover {
  box-shadow: var(--shadow-md);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 1.5rem;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--primary);
  text-align: left;
  background: none;
  border: none;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.faq-question:hover {
  background: var(--gray-50);
}

.faq-icon {
  flex-shrink: 0;
  width: 1.5rem;
  height: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--accent);
  transition: transform var(--transition-base);
}

.faq-item[open] .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 1.5rem 1.5rem;
  font-size: 1rem;
  color: var(--gray-600);
  line-height: 1.7;
}

.faq-answer p {
  margin-bottom: 1rem;
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

.faq-answer ul {
  list-style: disc;
  padding-left: 1.5rem;
  margin-top: 0.5rem;
}

.faq-answer li {
  margin-bottom: 0.5rem;
}

.faq-answer a {
  color: var(--accent);
  text-decoration: underline;
}

.faq-answer a:hover {
  color: var(--primary);
}

/* ==========================================================================
   14. SEÇÃO REVISÃO (FORMULÁRIO)
   ========================================================================== */

.review-section {
  background: white;
}

.review-wrapper {
  display: grid;
  gap: 3rem;
}

@media (min-width: 1024px) {
  .review-wrapper {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}

.review-content {
  position: sticky;
  top: 6rem;
}

.review-description {
  font-size: 1.125rem;
  color: var(--gray-600);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.review-benefits {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.benefit-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1rem;
  color: var(--gray-700);
}

.benefit-item svg {
  flex-shrink: 0;
}

/* Formulário */
.review-form {
  padding: 2.5rem;
  background: var(--gray-50);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-row {
  display: grid;
  gap: 1rem;
}

@media (min-width: 640px) {
  .form-row {
    grid-template-columns: repeat(2, 1fr);
  }
}

.form-group label {
  display: block;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  font-size: 1rem;
  color: var(--gray-900);
  background: white;
  border: 2px solid var(--gray-300);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(201, 169, 97, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--gray-400);
}

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

.form-note {
  font-size: 0.875rem;
  color: var(--gray-500);
  text-align: center;
  margin-top: 1rem;
}

.form-note a {
  color: var(--accent);
  text-decoration: underline;
}

.form-note a:hover {
  color: var(--primary);
}

/*============================================
   16. FOOTER
   ============================================ */
.footer {
  background: var(--primary);
  color: white;
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-grid {
  display: grid;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

.footer-logo {
  display: inline-block;
  margin-bottom: var(--spacing-md);
}

.footer-description {
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--text-sm);
}

.footer-title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: white;
  margin-bottom: var(--spacing-md);
}

.footer-links,
.footer-contact {
  list-style: none;
}

.footer-links li,
.footer-contact li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a,
.footer-contact a {
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--text-sm);
  transition: color var(--transition-fast);
}

.footer-links a:hover,
.footer-contact a:hover {
  color: var(--accent);
}

.footer-contact li {
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--text-sm);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--text-sm);
}


.panel-footer {
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
}

.panel-footer small {
  color: rgba(255, 255, 255, 0.5);
}

@media (max-width: 768px) {
  .hardware-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  
  .sensor-readings {
    grid-template-columns: 1fr;
  }
}

/* Testimonials */
.testimonials {
  margin-top: var(--space-20);
}

.testimonials-title {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  color: var(--primary);
  text-align: center;
  margin-bottom: var(--space-12);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-8);
}

.testimonial {
  background-color: var(--white);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

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

.testimonial-text {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--text);
  font-style: italic;
  margin-bottom: var(--space-6);
}

.testimonial-text::before {
  content: '"';
  font-size: var(--text-4xl);
  color: var(--accent);
  line-height: 0;
  margin-right: var(--space-2);
}

.testimonial-author {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}/* ==========================================================================
   INOTEC COMPANY - LANDING PAGE STYLES
   ========================================================================== */

/* ==========================================================================
   DESIGN TOKENS & CSS VARIABLES
   EDIT HERE: Customize colors, typography, spacing and other design tokens
   ========================================================================== */

:root {
  /* Color Palette - Fallback (edit these to match your brand) */
  --primary: #08324a;      /* Marinho escuro - cor principal */
  --accent: #00b7ff;       /* Dourado - destaque */
  --accent-2: #00b7ff;     /* Slate/neutral - secundário */
  --bg: #FAFAFA;           /* Background claro */
  --text: #1F2937;         /* Texto principal */
  --text-light: #6B7280;   /* Texto secundário */
  --white: #FFFFFF;
  --black: #000000;
  
  /* Semantic Colors */
  --success: #10B981;
  --warning: #F59E0B;
  --error: #EF4444;
  --info: #3B82F6;
  
  /* Neutral Shades */
  --gray-50: #F9FAFB;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-400: #9CA3AF;
  --gray-500: #6B7280;
  --gray-600: #4B5563;
  --gray-700: #374151;
  --gray-800: #1F2937;
  --gray-900: #111827;
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  --font-mono: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', 'Courier New', monospace;
  
  /* Font Sizes */
  --text-xs: 0.75rem;      /* 12px */
  --text-sm: 0.875rem;     /* 14px */
  --text-base: 1rem;       /* 16px */
  --text-lg: 1.125rem;     /* 18px */
  --text-xl: 1.25rem;      /* 20px */
  --text-2xl: 1.5rem;      /* 24px */
  --text-3xl: 1.875rem;    /* 30px */
  --text-4xl: 2.25rem;     /* 36px */
  --text-5xl: 3rem;        /* 48px */
  --text-6xl: 3.75rem;     /* 60px */
  
  /* Font Weights */
  --font-light: 300;
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-extrabold: 800;
  
  /* Line Heights */
  --leading-none: 1;
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 2;
  
  /* Spacing Scale */
  --space-1: 0.25rem;      /* 4px */
  --space-2: 0.5rem;       /* 8px */
  --space-3: 0.75rem;      /* 12px */
  --space-4: 1rem;         /* 16px */
  --space-5: 1.25rem;      /* 20px */
  --space-6: 1.5rem;       /* 24px */
  --space-8: 2rem;         /* 32px */
  --space-10: 2.5rem;      /* 40px */
  --space-12: 3rem;        /* 48px */
  --space-16: 4rem;        /* 64px */
  --space-20: 5rem;        /* 80px */
  --space-24: 6rem;        /* 96px */
  --space-32: 8rem;        /* 128px */

  /* Espaçamento */
  --spacing-xs: 0.25rem;   /* 4px */
  --spacing-sm: 0.5rem;    /* 8px */
  --spacing-md: 1rem;      /* 16px */
  --spacing-lg: 1.5rem;    /* 24px */
  --spacing-xl: 2rem;      /* 32px */
  --spacing-2xl: 3rem;     /* 48px */
  --spacing-3xl: 4rem;     /* 64px */
  --spacing-4xl: 6rem;     /* 96px */
  
  
  /* Border Radius */
  --radius-sm: 0.25rem;    /* 4px */
  --radius-md: 0.5rem;     /* 8px */
  --radius-lg: 0.75rem;    /* 12px */
  --radius-xl: 1rem;       /* 16px */
  --radius-2xl: 1.5rem;    /* 24px */
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;
  
  /* Z-index Scale */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal: 400;
  --z-popover: 500;
  --z-tooltip: 600;
  
  /* Container Max Width */
  --container-max: 1280px;
  --container-padding: var(--space-4);
}

/* ==========================================================================
   RESET & BASE STYLES
   ========================================================================== */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--font-normal);
  line-height: var(--leading-normal);
  color: var(--text);
  background-color: var(--bg);
  overflow-x: hidden;
}

/* Acessibilidade: Reduzir animações para usuários que preferem */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ==========================================================================
   TYPOGRAPHY
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
  color: var(--primary);
  margin-bottom: var(--space-4);
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

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

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

a:hover, a:focus {
  color: var(--primary);
  text-decoration: underline;
}

a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

strong, b {
  font-weight: var(--font-semibold);
}

small {
  font-size: var(--text-sm);
  color: var(--text-light);
}

/* ==========================================================================
   LAYOUT UTILITIES
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

/* ==========================================================================
   HEADER & NAVIGATION
   ========================================================================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) 0;
}

.logo {
  display: flex;
  align-items: center;
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  color: var(--primary);
  text-decoration: none;
  transition: transform var(--transition-fast);
}

.logo:hover {
  transform: scale(1.05);
  text-decoration: none;
}

.logo:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: var(--space-1);
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  z-index: var(--z-fixed);
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--primary);
  transition: all var(--transition-base);
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
}

.nav-menu a {
  font-weight: var(--font-medium);
  color: var(--text);
  text-decoration: none;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.nav-menu a:hover, .nav-menu a:focus {
  color: var(--accent);
  background-color: var(--gray-100);
  text-decoration: none;
}

/* Mobile Navigation */
@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background-color: var(--white);
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-20) var(--space-6);
    gap: var(--space-4);
    box-shadow: var(--shadow-2xl);
    transition: right var(--transition-base);
  }
  
  .nav-menu.active {
    right: 0;
  }
  
  .nav-menu a {
    width: 100%;
    font-size: var(--text-lg);
  }
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  line-height: var(--leading-normal);
  text-align: center;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

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

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

.btn-primary:hover, .btn-primary:focus {
  background-color: var(--primary);
  border-color: var(--primary);
  color: var(--white);
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover, .btn-secondary:focus {
  background-color: var(--primary);
  color: var(--white);
  text-decoration: none;
  transform: translateY(-2px);
}

.btn-block {
  width: 100%;
}

/* ==========================================================================
   HERO SECTION
   EDIT HERE: Customize hero background gradient and animation
   ========================================================================== */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--space-20);
  padding-bottom: var(--space-20);
  overflow: hidden;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--primary) 0%, #0a2e44 70%, var(--accent-2) 100%);
  opacity: 0.95;
  z-index: -1;
}

.hero-background::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 30% 50%, rgba(201, 169, 97, 0.2) 0%, transparent 50%);
  animation: gradientShift 8s ease-in-out infinite;
}

@keyframes gradientShift {
  0%, 100% { transform: translateX(0) translateY(0); }
  50% { transform: translateX(50px) translateY(30px); }
}

.hero-content {
  position: relative;
  z-index: var(--z-base);
  max-width: 800px;
  opacity: 0;
  animation: fadeInUp 1s ease-out forwards;
  animation-delay: 0.2s;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-title {
  font-size: var(--text-5xl);
  font-weight: var(--font-extrabold);
  line-height: var(--leading-tight);
  color: var(--white);
  margin-bottom: var(--space-6);
}

.hero-title .highlight {
  color: var(--accent);
  position: relative;
  display: inline-block;
}

.hero-subtitle {
  font-size: var(--text-xl);
  line-height: var(--leading-relaxed);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-8);
}

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

/* Responsive Hero */
@media (max-width: 768px) {
  .hero {
    min-height: 80vh;
    padding-top: var(--space-16);
    padding-bottom: var(--space-16);
  }
  
  .hero-title {
    font-size: var(--text-4xl);
  }
  
  .hero-subtitle {
    font-size: var(--text-lg);
  }
  
  .hero-cta {
    flex-direction: column;
  }
  
  .hero-cta .btn {
    width: 100%;
  }
}

/* ==========================================================================
   SECTION STYLES
   ========================================================================== */

section {
  padding: var(--space-20) 0;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-16);
}

.section-title {
  font-size: var(--text-4xl);
  font-weight: var(--font-extrabold);
  color: var(--primary);
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--text-light);
  line-height: var(--leading-relaxed);
}

/* Animated elements (triggered by IntersectionObserver) */
[data-animate] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

[data-animate].animate-in {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   SERVICES SECTION
   ========================================================================== */

.services {
  background-color: var(--white);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-8);
}

.service-card {
  background-color: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: all var(--transition-base);
}

.service-card:hover {
  transform: translateY(-8px) rotateX(2deg);
  box-shadow: var(--shadow-xl);
  border-color: var(--accent);
}

.service-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-6);
}

.service-icon svg {
  width: 100%;
  height: 100%;
}

.svg-draw {
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
  animation: drawSVG 2s ease-out forwards;
}

.service-card:hover .svg-draw {
  animation: drawSVG 1s ease-out forwards;
}

@keyframes drawSVG {
  to {
    stroke-dashoffset: 0;
  }
}

.service-title {
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  color: var(--primary);
  margin-bottom: var(--space-3);
}

.service-description {
  font-size: var(--text-base);
  color: var(--text);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-4);
}

.service-features {
  list-style: none;
  padding: 0;
}

.service-features li {
  position: relative;
  padding-left: var(--space-6);
  margin-bottom: var(--space-3);
  color: var(--text-light);
  line-height: var(--leading-relaxed);
}

.service-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: var(--font-bold);
}

/* ==========================================================================
   VERTICAL AI SECTION
   ========================================================================== */

.vertical-ai {
  background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
}

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

.vertical-ai-description {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--text);
  margin-bottom: var(--space-6);
}

.vertical-ai-benefits {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  margin-top: var(--space-8);
}

.benefit-item {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.benefit-number {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent) 0%, var(--primary) 100%);
  color: var(--white);
  font-weight: var(--font-bold);
  font-size: var(--text-lg);
  border-radius: var(--radius-lg);
}

.benefit-item h4 {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  color: var(--primary);
  margin-bottom: var(--space-2);
}

.benefit-item p {
  color: var(--text-light);
  margin: 0;
}

.vertical-ai-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.ai-flow {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-8);
  background-color: var(--white);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl);
}

.flow-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  text-align: center;
}

.flow-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent) 0%, var(--primary) 100%);
  border-radius: var(--radius-full);
  font-size: var(--text-3xl);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.flow-arrow {
  font-size: var(--text-3xl);
  color: var(--accent);
  font-weight: var(--font-bold);
}

.flow-step p {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text);
  margin: 0;
}

@media (max-width: 768px) {
  .vertical-ai-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  
  .ai-flow {
    flex-direction: column;
    gap: var(--space-6);
  }
  
  .flow-arrow {
    transform: rotate(90deg);
  }
}

/* ==========================================================================
   HOW IT WORKS SECTION
   ========================================================================== */

.how-it-works {
  background-color: var(--white);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-8);
}

.step-item {
  position: relative;
  text-align: center;
  padding: var(--space-8);
  background-color: var(--gray-50);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
}

.step-item:hover {
  background-color: var(--white);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--primary) 100%);
  color: var(--white);
  font-size: var(--text-3xl);
  font-weight: var(--font-extrabold);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-6);
  box-shadow: var(--shadow-md);
}

.step-title {
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  color: var(--primary);
  margin-bottom: var(--space-3);
}

.step-description {
  font-size: var(--text-base);
  color: var(--text-light);
  line-height: var(--leading-relaxed);
  margin: 0;
}

/* ==========================================================================
   HARDWARE DEMO SECTION
   ========================================================================== */

.hardware-demo {
  background: linear-gradient(135deg, var(--primary) 0%, #0a2e44 100%);
  color: var(--white);
}

.hardware-demo .section-title {
  color: var(--white);
}

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

.hardware-description {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-6);
}

.hardware-features {
  list-style: none;
  padding: 0;
  margin-top: var(--space-8);
}

.hardware-features li {
  position: relative;
  padding-left: var(--space-6);
  margin-bottom: var(--space-4);
  color: rgba(255, 255, 255, 0.9);
  line-height: var(--leading-relaxed);
}

.hardware-features li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: var(--font-bold);
}

.hardware-features strong {
  color: var(--accent);
}

.hardware-panel {
  background-color: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-2xl);
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.panel-header h3 {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  color: var(--white);
  margin: 0;
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--success);
}

.status-dot {
  width: 8px;
  height: 8px;
  background-color: var(--success);
  border-radius: var(--radius-full);
  animation: blink 2s ease-in-out infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.sensor-readings {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}

.sensor-card {
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  text-align: center;
}

.sensor-label {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: rgba(255, 255, 255, 0.7);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-3);
}

.sensor-value {
  font-size: var(--text-4xl);
  font-weight: var(--font-extrabold);
  color: var(--accent);
  margin-bottom: var(--space-2);
  font-variant-numeric: tabular-nums;
}

.sensor-unit {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: var(--space-4);
}

.sensor-chart {
  height: 60px;
  background: linear-gradient(to right, transparent 0%, rgba(201, 169, 97, 0.2) 50%, transparent 100%);
  border-radius: var(--radius-md);
  position: relative;
  overflow: hidden;
}

.sensor-chart::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(to right, transparent, rgba(201, 169, 97, 0.5), transparent);
  animation: chartScan 3s ease-in-out infinite;
}

@keyframes chartScan {
  0% { left: -100%; }
  100% { left: 100%; }
}

 ============================================
   16. FOOTER
   ============================================ */
.footer {
  background: var(--primary);
  color: white;
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-grid {
  display: grid;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

.footer-logo {
  display: inline-block;
  margin-bottom: var(--spacing-md);
}

.footer-description {
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--text-sm);
}

.footer-title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: white;
  margin-bottom: var(--spacing-md);
}

.footer-links,
.footer-contact {
  list-style: none;
}

.footer-links li,
.footer-contact li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a,
.footer-contact a {
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--text-sm);
  transition: color var(--transition-fast);
}

.footer-links a:hover,
.footer-contact a:hover {
  color: var(--accent);
}

.footer-contact li {
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--text-sm);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--text-sm);
}


.panel-footer {
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
}

.panel-footer small {
  color: rgba(255, 255, 255, 0.5);
}

@media (max-width: 768px) {
  .hardware-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  
  .sensor-readings {
    grid-template-columns: 1fr;
  }
}

/* Testimonials */
.testimonials {
  margin-top: var(--space-20);
}

.testimonials-title {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  color: var(--primary);
  text-align: center;
  margin-bottom: var(--space-12);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-8);
}

.testimonial {
  background-color: var(--white);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

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

.testimonial-text {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--text);
  font-style: italic;
  margin-bottom: var(--space-6);
}

.testimonial-text::before {
  content: '"';
  font-size: var(--text-4xl);
  color: var(--accent);
  line-height: 0;
  margin-right: var(--space-2);
}

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

.testimonial-author strong {
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  color: var(--primary);
}

.testimonial-author span {
  font-size: var(--text-sm);
  color: var(--text-light);
}

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

.faq {
  background-color: var(--white);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background-color: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-4);
  overflow: hidden;
  transition: all var(--transition-base);
}

.faq-item:hover {
  box-shadow: var(--shadow-md);
}

.faq-item[open] {
  border-color: var(--accent);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-6);
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--primary);
  cursor: pointer;
  user-select: none;
  list-style: none;
}

.faq-question::-webkit-details-marker {
  display: none;
}

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

.faq-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-2xl);
  font-weight: var(--font-light);
  color: var(--accent);
  transition: transform var(--transition-base);
}

.faq-item[open] .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 var(--space-6) var(--space-6);
  animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.faq-answer p {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--text);
  margin: 0;
}

/* ==========================================================================
   CONTACT SECTION
   ========================================================================== */

.contact {
  background: linear-gradient(135deg, var(--primary) 0%, #0a2e44 100%);
  color: var(--white);
}

.contact .section-title {
  color: var(--white);
  text-align: left;
}

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

.contact-description {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-8);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}

.contact-item {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.contact-item svg {
  flex-shrink: 0;
  margin-top: var(--space-1);
}

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

.contact-item strong {
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  color: var(--accent);
}

.contact-item a,
.contact-item span {
  font-size: var(--text-base);
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
}

.contact-item a:hover {
  color: var(--accent);
  text-decoration: underline;
}

.social-links {
  display: flex;
  gap: var(--space-4);
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  color: var(--white);
  transition: all var(--transition-base);
}

.social-links a:hover {
  background-color: var(--accent);
  transform: translateY(-4px);
  text-decoration: none;
}

.contact-form {
  background-color: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-2xl);
}

.form-group {
  margin-bottom: var(--space-6);
}

.form-group label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-2);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--space-4);
  font-size: var(--text-base);
  font-family: var(--font-sans);
  color: var(--text);
  background-color: var(--white);
  border: 2px solid transparent;
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(201, 169, 97, 0.2);
}

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

.form-note {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.7);
  text-align: center;
  margin-top: var(--space-4);
}

.form-note a {
  color: var(--accent);
  text-decoration: underline;
}

@media (max-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
}

/* Footer - melhorias de logo e responsividade */
.footer {
  background: linear-gradient(180deg, #0f172a 0%, #071028 100%);
  color: #D1D5DB;
  padding: 48px 0 24px;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.footer-logo-img {
  height: 48px;
  width: auto;
  display: block;
  object-fit: contain;
  filter: drop-shadow(0 2px 6px rgba(0,0,0,0.35));
}

.footer-logo-text {
  color: #FFFFFF;
  font-weight: 700;
  font-size: 16px;
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

.footer-logo-sub {
  font-weight: 600;
  font-size: 12px;
  opacity: 0.85;
  display: block;
  margin-top: 2px;
  letter-spacing: 0.8px;
}

/* ajustar descrição e colunas */
.footer-description {
  margin-top: 12px;
  color: #9CA3AF;
  max-width: 320px;
}

/* responsividade: empilha logo/texto em telas pequenas */
@media (max-width: 720px) {
  .footer-logo { gap: 10px; }
  .footer-logo-img { height: 40px; }
  .footer-logo-text { font-size: 14px; }
  .footer-logo-sub { font-size: 11px; }
  .footer-description { max-width: 100%; }
}

/* footer-bottom */
.footer-bottom {
  margin-top: 28px;
  border-top: 1px solid rgba(255,255,255,0.04);
  padding-top: 18px;
  color: #9CA3AF;
  font-size: 13px;
}

/* Manter seus estilos originais para .footer-grid, .footer-col etc. */
/* Se quiser, posso ajustar também o grid para um layout mais moderno. */


/* ==========================================================================
   RESPONSIVE UTILITIES
   ========================================================================== */

@media (max-width: 1024px) {
  :root {
    --text-5xl: 2.5rem;
    --text-4xl: 2rem;
    --text-3xl: 1.75rem;
  }
}

@media (max-width: 768px) {
  :root {
    --text-5xl: 2rem;
    --text-4xl: 1.75rem;
    --text-3xl: 1.5rem;
    --space-20: 3rem;
    --space-16: 2.5rem;
  }
  
  section {
    padding: var(--space-12) 0;
  }
}

/* ============================================
   11. CASES
   ============================================ */
.cases-section {
  background: white;
}

.cases-grid {
  display: grid;
  gap: var(--spacing-3xl);
  margin-bottom: var(--spacing-4xl);
}

.case-preview {
  display: grid;
  gap: var(--spacing-xl);
  align-items: center;
}

@media (min-width: 768px) {
  .case-preview {
    grid-template-columns: 1fr 1fr;
  }
  
  .case-preview:nth-child(even) .case-preview-image {
    order: 2;
  }
}

.case-preview-image {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    aspect-ratio: 1.8 / 1; /* Força a proporção quadrada (1:1) */
    position: relative; /* Necessário para posicionar a imagem corretamente */
}

.case-preview-image img {
    width: 100%;
    height: 100%; /* Faz a imagem preencher a altura do contêiner */
    object-fit: cover; /* Ajusta a imagem para cobrir o contêiner, cortando se necessário */
    display: block;
    transition: transform var(--transition-slow);
    position: absolute; /* Garante que a imagem fique centralizada no contêiner */
    top: 0;
    left: 0;
}

.case-preview:hover .case-preview-image img {
    transform: scale(1.25);
}

.case-preview-title {
    font-size: var(--text-3xl);
    color: var(--primary);
    margin-bottom: var(--spacing-md);
}

.case-preview-challenge,
.case-preview-solution {
    margin-bottom: var(--spacing-md);
    color: var(--gray-700);
}

.case-preview-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.metric-item {
  text-align: center;
  padding: var(--spacing-md);
  background: var(--gray-50);
  border-radius: var(--radius-lg);
}

.metric-value {
  display: block;
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--accent);
  margin-bottom: var(--spacing-xs);
}

.metric-label {
  display: block;
  font-size: var(--text-sm);
  color: var(--gray-600);
}

/* Gráfico de Evolução */
.case-chart {
  background: white;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  margin-top: var(--spacing-3xl);
}

.chart-title {
  font-size: var(--text-xl);
  color: var(--primary);
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.metrics-chart {
  width: 100%;
  height: auto;
}

.chart-line {
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
  animation: drawLine 2s ease-out forwards;
}

@keyframes drawLine {
  to {
    stroke-dashoffset: 0;
  }
}

.chart-points circle {
  opacity: 0;
  animation: fadeInPoint 0.5s ease-out forwards;
}

.chart-points circle:nth-child(1) { animation-delay: 0.3s; }
.chart-points circle:nth-child(2) { animation-delay: 0.5s; }
.chart-points circle:nth-child(3) { animation-delay: 0.7s; }
.chart-points circle:nth-child(4) { animation-delay: 0.9s; }
.chart-points circle:nth-child(5) { animation-delay: 1.1s; }
.chart-points circle:nth-child(6) { animation-delay: 1.3s; }
.chart-points circle:nth-child(7) { animation-delay: 1.5s; }
.chart-points circle:nth-child(8) { animation-delay: 1.7s; }
.chart-points circle:nth-child(9) { animation-delay: 1.9s; }
.chart-points circle:nth-child(10) { animation-delay: 2.1s; }
.chart-points circle:nth-child(11) { animation-delay: 2.3s; }
.chart-points circle:nth-child(12) { animation-delay: 2.5s; }

@keyframes fadeInPoint {
  to {
    opacity: 1;
  }
}


.testimonial-author strong {
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  color: var(--primary);
}

.testimonial-author span {
  font-size: var(--text-sm);
  color: var(--text-light);
}


/* ==========================================================================
   16. RESPONSIVIDADE MOBILE
   ========================================================================== */

@media (max-width: 767px) {
  .hero {
    padding: 4rem 0 3rem;
  }
  
  .hero-cta {
    flex-direction: column;
  }
  
  .hero-cta .btn {
    width: 100%;
  }
  
  .stat-value {
    font-size: 2.5rem;
  }
  
  .recommendation-box {
    padding: 2rem;
  }
  
  .step-item {
    flex-direction: column;
    gap: 1rem;
  }
  
  .step-number {
    width: 2.5rem;
    height: 2.5rem;
    font-size: 1.25rem;
  }
}