/* ============================================================
   Beta.AI — Cases de Sucesso | Design System
   ============================================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* --- CSS Custom Properties --- */
:root {
  /* Primary Palette */
  --bg-primary: #fdfcff;
  --bg-secondary: #f4f6fa;
  --bg-card: #ffffff;
  --bg-card-hover: #f1f5f9;
  --bg-surface: #edf2f7;
  --bg-glass: rgba(255, 255, 255, 0.75);

  /* Accent Colors */
  --accent-violet: #2d5af7;
  --accent-violet-light: #537cff;
  --accent-cyan: #ff61d8;
  --accent-cyan-light: #ff8de2;
  --accent-green: #10B981;
  --accent-green-light: #34D399;
  --accent-orange: #F97316;
  --accent-orange-light: #FB923C;
  --accent-blue: #3B82F6;
  --accent-pink: #ff61d8;

  /* Gradients */
  --gradient-hero: linear-gradient(135deg, #2d5af7 0%, #ff61d8 100%);
  --gradient-violet: linear-gradient(135deg, #2d5af7 0%, #537cff 100%);
  --gradient-cyan: linear-gradient(135deg, #ff61d8 0%, #ff8de2 100%);
  --gradient-green: linear-gradient(135deg, #059669 0%, #10B981 100%);
  --gradient-orange: linear-gradient(135deg, #EA580C 0%, #F97316 100%);
  --gradient-surface: linear-gradient(180deg, #fdfcff 0%, #f4f6fa 100%);

  /* Text Colors */
  --text-primary: #001b3a;
  --text-secondary: #64748b;
  --text-muted: #94A3B8;
  --text-accent: #2d5af7;
  --text-on-accent: #FFFFFF;

  /* Borders */
  --border-subtle: rgba(0, 27, 58, 0.08);
  --border-active: rgba(45, 90, 247, 0.3);
  --border-glow: rgba(255, 97, 216, 0.2);

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 27, 58, 0.05);
  --shadow-md: 0 4px 20px rgba(0, 27, 58, 0.08);
  --shadow-lg: 0 10px 40px rgba(0, 27, 58, 0.12);
  --shadow-glow-violet: 0 0 30px rgba(45, 90, 247, 0.15);
  --shadow-glow-cyan: 0 0 30px rgba(255, 97, 216, 0.15);

  /* Typography */
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Layout */
  --nav-height: 150px;
  --max-width: 1280px;
  --sidebar-width: 280px;
}

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

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

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

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

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

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

ul, ol {
  list-style: none;
}

/* --- Typography --- */
h1, h2, h3, h4, h5 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.6rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.8rem); }
h4 { font-size: clamp(1rem, 2vw, 1.3rem); }

.text-gradient {
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-accent { color: var(--text-accent); }
.text-cyan { color: var(--accent-cyan); }
.text-green { color: var(--accent-green); }
.text-orange { color: var(--accent-orange); }
.text-muted { color: var(--text-secondary); }

.label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-violet-light);
}

/* --- Navigation --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(253, 252, 255, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 1000;
  display: flex;
  align-items: center;
  padding: 0 var(--space-xl);
  transition: var(--transition-base);
}

.navbar.scrolled {
  background: rgba(253, 252, 255, 0.95);
  box-shadow: var(--shadow-md);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.nav-brand .brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gradient-hero);
  animation: pulse-dot 2s infinite;
}
/* Logo size */
.nav-brand-logo {
  height: 200px;
  width: auto;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.3); }
}

.nav-brand span.beta {
  color: var(--accent-violet-light);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin: 0 auto;
  justify-content: center;
}

.nav-link {
  padding: var(--space-sm) var(--space-md);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
  position: relative;
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--text-primary);
  background: rgba(45, 90, 247, 0.08);
}

.nav-link.active {
  color: var(--accent-violet);
  background: rgba(45, 90, 247, 0.12);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--accent-violet);
  border-radius: var(--radius-full);
}

.nav-cta {
  padding: var(--space-sm) var(--space-lg);
  font-size: 0.875rem;
  font-weight: 600;
  background: var(--gradient-violet);
  color: white;
  border-radius: var(--radius-full);
  transition: var(--transition-base);
  margin-left: var(--space-md);
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow-violet);
}

/* Mobile menu */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-sm);
  cursor: pointer;
}

.nav-hamburger span {
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: var(--radius-full);
  transition: var(--transition-fast);
}

/* --- Main Content --- */
.main-content {
  padding-top: var(--nav-height);
  min-height: 100vh;
}

.page {
  display: none;
  animation: fadeInPage 0.5s ease forwards;
}

.page.active {
  display: block;
}

@keyframes fadeInPage {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.section {
  padding: var(--space-4xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-header .label {
  display: block;
  margin-bottom: var(--space-sm);
}

.section-header h2 {
  margin-bottom: var(--space-md);
}

.section-header p {
  max-width: 640px;
  margin: 0 auto;
  color: var(--text-secondary);
  font-size: 1.05rem;
}

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: calc(100vh - var(--nav-height));
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(45, 90, 247, 0.15) 0%, transparent 70%);
  animation: float 8s ease-in-out infinite;
}

.hero-bg::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -150px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255, 97, 216, 0.15) 0%, transparent 70%);
  animation: float 10s ease-in-out infinite reverse;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0); }
  33% { transform: translate(30px, -30px); }
  66% { transform: translate(-20px, 20px); }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xs) var(--space-md);
  background: rgba(124, 58, 237, 0.15);
  border: 1px solid rgba(124, 58, 237, 0.3);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-violet-light);
  margin-bottom: var(--space-xl);
  animation: slideIn 0.8s ease forwards;
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-green);
  animation: pulse-dot 1.5s infinite;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateX(-20px); }
  to { opacity: 1; transform: translateX(0); }
}

.hero h1 {
  margin-bottom: var(--space-lg);
  animation: fadeUp 0.8s ease 0.1s forwards;
  opacity: 0;
}

.hero .hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-2xl);
  max-width: 560px;
  line-height: 1.7;
  animation: fadeUp 0.8s ease 0.2s forwards;
  opacity: 0;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  animation: fadeUp 0.8s ease 0.3s forwards;
  opacity: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 14px 28px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-violet);
  color: white;
  box-shadow: 0 4px 15px rgba(124, 58, 237, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(124, 58, 237, 0.4);
}

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

.btn-secondary:hover {
  background: rgba(148, 163, 184, 0.1);
  border-color: var(--accent-violet);
  transform: translateY(-2px);
}

.btn-icon {
  font-size: 1.1rem;
}

/* Hero Stats */
.hero-stats {
  display: flex;
  gap: var(--space-3xl);
  margin-top: var(--space-3xl);
  animation: fadeUp 0.8s ease 0.4s forwards;
  opacity: 0;
}

.hero-stat {
  text-align: left;
}

.hero-stat .stat-value {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
}

.hero-stat .stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: var(--space-xs);
}

/* --- Metric Cards (Impact section) --- */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
}

.metric-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: var(--transition-base);
  overflow: hidden;
}

.metric-card.clickable {
  cursor: pointer;
}


.metric-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.metric-card.violet::before { background: var(--gradient-violet); }
.metric-card.cyan::before { background: var(--gradient-cyan); }
.metric-card.green::before { background: var(--gradient-green); }
.metric-card.orange::before { background: var(--gradient-orange); }

.metric-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-active);
}

.metric-card .metric-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-lg);
}

.metric-card.violet .metric-icon { background: rgba(45, 90, 247, 0.1); color: var(--accent-violet); }
.metric-card.cyan .metric-icon { background: rgba(255, 97, 216, 0.1); color: var(--accent-cyan); }
.metric-card.green .metric-icon { background: rgba(16, 185, 129, 0.1); color: var(--accent-green); }
.metric-card.orange .metric-icon { background: rgba(249, 115, 22, 0.1); color: var(--accent-orange); }

.metric-card .metric-value {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: var(--space-xs);
}

.metric-card.violet .metric-value { color: var(--accent-violet-light); }
.metric-card.cyan .metric-value { color: var(--accent-cyan); }
.metric-card.green .metric-value { color: var(--accent-green); }
.metric-card.orange .metric-value { color: var(--accent-orange); }

.metric-card h4 {
  margin-bottom: var(--space-sm);
}

.metric-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* --- Offerings Grid --- */
.offerings-tabs {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: var(--space-2xl);
}

.offering-tab {
  padding: var(--space-sm) var(--space-lg);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  transition: var(--transition-fast);
  white-space: nowrap;
}

.offering-tab:hover {
  color: var(--text-primary);
  border-color: var(--accent-violet);
  background: rgba(124, 58, 237, 0.1);
}

.offering-tab.active {
  background: var(--accent-violet);
  color: white;
  border-color: var(--accent-violet);
}

.offerings-table-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.offerings-table {
  width: 100%;
  border-collapse: collapse;
}

.offerings-table thead {
  background: rgba(124, 58, 237, 0.1);
}

.offerings-table th {
  padding: var(--space-md) var(--space-lg);
  text-align: left;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-violet-light);
  border-bottom: 1px solid var(--border-subtle);
}

.offerings-table td {
  padding: var(--space-md) var(--space-lg);
  font-size: 0.9rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: top;
}

.offerings-table tr:last-child td {
  border-bottom: none;
}

.offerings-table tr:hover td {
  background: rgba(124, 58, 237, 0.05);
}

.offerings-table td:first-child {
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
}

.offerings-table td:nth-child(2) {
  color: var(--accent-cyan);
  font-weight: 500;
  white-space: nowrap;
}

/* --- Pilares / Steps Section --- */
.pilares-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
}

.pilar-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  text-align: center;
  transition: var(--transition-base);
  position: relative;
}

.pilar-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-active);
}

.pilar-card .pilar-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-violet);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.2rem;
  margin: 0 auto var(--space-lg);
  color: white;
}

.pilar-card h4 {
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.pilar-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Steps timeline */
.steps-timeline {
  display: flex;
  gap: 0;
  overflow-x: auto;
  padding: var(--space-xl) 0;
  scrollbar-width: none;
}

.steps-timeline::-webkit-scrollbar { display: none; }

.step-item {
  flex: 1;
  min-width: 150px;
  text-align: center;
  position: relative;
  padding: 0 var(--space-md);
}

.step-item::after {
  content: '';
  position: absolute;
  top: 24px;
  right: -50%;
  width: 100%;
  height: 2px;
  background: var(--border-subtle);
}

.step-item:last-child::after { display: none; }

.step-dot {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 2px solid var(--accent-violet);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--accent-violet-light);
  margin: 0 auto var(--space-md);
  position: relative;
  z-index: 1;
  transition: var(--transition-base);
}

.step-item:hover .step-dot {
  background: var(--accent-violet);
  color: white;
  box-shadow: var(--shadow-glow-violet);
}

.step-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* --- Cases Hub --- */
.cases-filters {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: var(--space-2xl);
}

.filter-btn {
  padding: 10px 20px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  transition: var(--transition-fast);
  white-space: nowrap;
}

.filter-btn:hover {
  color: var(--text-primary);
  border-color: var(--accent-violet);
  background: rgba(124, 58, 237, 0.1);
}

.filter-btn.active {
  background: var(--accent-violet);
  color: white;
  border-color: var(--accent-violet);
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--space-xl);
}

.case-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition-base);
  cursor: pointer;
  position: relative;
}

.case-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-active);
}

.case-card-header {
  padding: var(--space-lg) var(--space-xl) var(--space-md);
  position: relative;
}

.case-card-category {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
}

.case-card-category.agentic-ai {
  background: rgba(45, 90, 247, 0.1);
  color: var(--accent-violet);
}

.case-card-category.previsao {
  background: rgba(255, 97, 216, 0.1);
  color: var(--accent-cyan);
}

.case-card-category.data-analytics {
  background: rgba(16, 185, 129, 0.1);
  color: var(--accent-green);
}

.case-card-category.governance {
  background: rgba(249, 115, 22, 0.1);
  color: var(--accent-orange);
}

.case-card-category.optimization {
  background: rgba(59, 130, 246, 0.1);
  color: var(--accent-blue);
}

.case-card h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
  line-height: 1.3;
}

.case-card-client {
  font-size: 0.9rem;
  color: var(--accent-cyan);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.case-card-body {
  padding: 0 var(--space-xl) var(--space-lg);
}

.case-card-body p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.case-card-footer {
  padding: var(--space-md) var(--space-xl);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.case-card-metrics {
  display: flex;
  gap: var(--space-lg);
}

.case-mini-metric {
  text-align: left;
}

.case-mini-metric .mini-value {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent-green);
}

.case-mini-metric .mini-label {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.case-card-arrow {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(45, 90, 247, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-violet);
  transition: var(--transition-fast);
  font-size: 1rem;
}

.case-card:hover .case-card-arrow {
  background: var(--accent-violet);
  color: white;
  transform: translateX(4px);
}

/* --- Case Detail Page --- */
.case-detail-hero {
  position: relative;
  padding: var(--space-3xl) 0;
  overflow: hidden;
}

.case-detail-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(45, 90, 247, 0.08) 0%, rgba(255, 97, 216, 0.06) 100%);
  pointer-events: none;
}

.case-back-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
  transition: var(--transition-fast);
  cursor: pointer;
}

.case-back-btn:hover {
  color: var(--accent-violet-light);
  transform: translateX(-4px);
}

.case-detail-header {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2xl);
  position: relative;
  z-index: 1;
}

.case-detail-info {
  flex: 1;
}

.case-detail-info .label {
  margin-bottom: var(--space-md);
}

.case-detail-info h1 {
  margin-bottom: var(--space-md);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
}

.case-detail-client-name {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-bottom: var(--space-md);
}

.case-detail-description {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 640px;
}

.case-detail-stats {
  display: flex;
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}

.case-stat-card {
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  min-width: 140px;
  text-align: center;
}

.case-stat-card .case-stat-value {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent-green);
  line-height: 1.1;
}

.case-stat-card .case-stat-label {
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-top: var(--space-xs);
}

/* Case sections */
.case-sections {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  margin-top: var(--space-3xl);
}

.case-section-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: var(--transition-base);
}

.case-section-card:hover {
  border-color: var(--border-active);
  box-shadow: var(--shadow-glow-violet);
}

.case-section-card.full-width {
  grid-column: 1 / -1;
}

.case-section-card .section-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  margin-bottom: var(--space-lg);
}

.case-section-card .section-icon.red { background: rgba(239, 68, 68, 0.1); color: #EF4444; }
.case-section-card .section-icon.blue { background: rgba(59, 130, 246, 0.1); color: var(--accent-blue); }
.case-section-card .section-icon.green { background: rgba(16, 185, 129, 0.1); color: var(--accent-green); }
.case-section-card .section-icon.violet { background: rgba(45, 90, 247, 0.1); color: var(--accent-violet); }

.case-section-card h3 {
  font-size: 1.2rem;
  margin-bottom: var(--space-md);
}

.case-section-card p,
.case-section-card li {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.case-section-card ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.case-section-card li {
  position: relative;
  padding-left: var(--space-lg);
}

.case-section-card li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent-violet-light);
  font-weight: 600;
}

/* Results highlight */
.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-lg);
}

.result-item {
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  text-align: center;
}

.result-item .result-value {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent-green);
  margin-bottom: var(--space-xs);
}

.result-item .result-label {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* --- Diferenciais Section --- */
.diferenciais-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
}

.diferencial-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: var(--transition-base);
}

.diferencial-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-active);
  box-shadow: var(--shadow-lg);
}

.diferencial-card .dif-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-lg);
  background: var(--gradient-violet);
  color: white;
}

.diferencial-card h4 {
  margin-bottom: var(--space-sm);
}

.diferencial-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --- CTA Section --- */
.cta-section {
  position: relative;
  padding: var(--space-4xl) 0;
  text-align: center;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(45, 90, 247, 0.08) 0%, rgba(255, 97, 216, 0.08) 100%);
  border-radius: var(--radius-xl);
}

.cta-content {
  position: relative;
  z-index: 1;
}

.cta-content h2 {
  margin-bottom: var(--space-md);
}

.cta-content p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: var(--space-2xl);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* --- Footer --- */
.footer {
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-2xl) 0;
  text-align: center;
}

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

.footer .footer-brand {
  font-weight: 600;
  color: var(--text-secondary);
}

.footer .footer-tagline {
  font-style: italic;
  margin-top: var(--space-xs);
  color: var(--accent-violet-light);
  font-size: 0.8rem;
}

/* --- Client Logos Row --- */
.clients-row {
  display: flex;
  gap: var(--space-2xl);
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  padding: var(--space-2xl) 0;
  opacity: 0.6;
}

.clients-row span {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  white-space: nowrap;
}

/* --- Scroll Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* --- Sobre o Cliente (About Section in Case Detail) --- */
.about-company {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  margin-bottom: var(--space-xl);
}

.about-company h3 {
  font-size: 1.15rem;
  margin-bottom: var(--space-md);
  color: var(--accent-cyan);
}

.about-company p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* --- Press/Media Section --- */
.press-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-lg);
}

.press-card {
  background: rgba(45, 90, 247, 0.06);
  border: 1px solid rgba(45, 90, 247, 0.15);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  transition: var(--transition-base);
}

.press-card:hover {
  background: rgba(45, 90, 247, 0.12);
  transform: translateY(-2px);
}

.press-card .press-source {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-violet-light);
  margin-bottom: var(--space-sm);
}

.press-card .press-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: var(--space-sm);
}

.press-card .press-date {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .case-sections {
    grid-template-columns: 1fr;
  }

  .case-detail-stats {
    flex-wrap: wrap;
  }

  .hero-stats {
    gap: var(--space-xl);
  }
}

@media (max-width: 768px) {
  :root {
    --nav-height: 64px;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(253, 252, 255, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--space-lg);
    border-bottom: 1px solid var(--border-subtle);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-hamburger {
    display: flex;
    margin-left: auto;
  }

  .nav-cta {
    margin-left: 0;
    width: 100%;
    text-align: center;
    justify-content: center;
  }

  .hero-stats {
    flex-direction: column;
    gap: var(--space-lg);
  }

  .hero-actions {
    flex-direction: column;
  }

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

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

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

  .case-detail-header {
    flex-direction: column;
  }

  .case-detail-stats {
    flex-direction: column;
  }

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

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

  .section {
    padding: var(--space-2xl) 0;
  }
}

/* --- Loading Animation --- */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.skeleton {
  background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-card-hover) 50%, var(--bg-card) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

/* --- Counters Animation --- */
.counter {
  display: inline-block;
}

/* --- Glow Divider --- */
.glow-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-violet), var(--accent-cyan), transparent);
  border: none;
  margin: var(--space-3xl) 0;
  opacity: 0.4;
}

/* --- Tag/Badge --- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  font-size: 0.7rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.tag.aws {
  background: rgba(249, 115, 22, 0.15);
  color: var(--accent-orange);
}

.tag.genai {
  background: rgba(45, 90, 247, 0.1);
  color: var(--accent-violet);
}

.tag.ml {
  background: rgba(255, 97, 216, 0.1);
  color: var(--accent-cyan);
}

/* --- Navbar Brand Logo --- */
.nav-brand-logo {
  height: 32px;
  width: auto;
  object-fit: contain;
  mix-blend-mode: multiply;
}

/* --- Hero Logos --- */
.hero-logos-row {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.hero-logo {
  height: 48px;
  width: auto;
  object-fit: contain;
}

.hero-logo-a3data {
  height: 80px;
}

.hero-logo-beta {
  height: 44px;
  filter: brightness(0) saturate(100%) invert(27%) sepia(67%) saturate(3100%) hue-rotate(221deg) brightness(98%) contrast(96%);
}

.hero-logos-divider {
  width: 2px;
  height: 56px;
  background: linear-gradient(180deg, transparent, var(--accent-violet), var(--accent-cyan), transparent);
  border-radius: var(--radius-full);
}

.hero-aws-badge {
  height: 28px;
  width: auto;
  object-fit: contain;
  margin-right: var(--space-sm);
}

/* --- Case Card Logos --- */
.case-card-top-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-sm);
}

.case-card-logo-wrapper {
  flex-shrink: 0;
  width: 56px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.case-card-logo {
  max-width: 56px;
  max-height: 40px;
  object-fit: contain;
  border-radius: var(--radius-sm);
  opacity: 0.8;
  transition: var(--transition-base);
}

.case-card:hover .case-card-logo {
  opacity: 1;
}

.case-card-logo-fallback {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--gradient-hero);
  color: white;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* --- Case Detail Logo --- */
.case-detail-logo-container {
  flex-shrink: 0;
  width: 120px;
  height: 90px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  box-shadow: var(--shadow-md);
}

.case-detail-logo {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.case-detail-logo-fallback {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-lg);
  background: var(--gradient-hero);
  color: white;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* --- Clients Logo Grid --- */
.clients-logo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.client-logo-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  height: 90px;
  transition: var(--transition-base);
}

.client-logo-card:hover {
  border-color: var(--border-active);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.client-logo-card img {
  max-width: 100%;
  max-height: 52px;
  object-fit: contain;
  filter: grayscale(0.3);
  opacity: 0.85;
  transition: var(--transition-base);
}

.client-logo-card:hover img {
  filter: grayscale(0);
  opacity: 1;
}

/* --- Site Footer --- */
.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-2xl) 0;
  margin-top: var(--space-3xl);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xl);
  flex-wrap: wrap;
}

.footer-logos {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.footer-logo-a3data {
  height: 54px;
  width: auto;
  object-fit: contain;
  mix-blend-mode: multiply;
}

.footer-logo-beta {
  height: 32px;
  width: auto;
  object-fit: contain;
  filter: brightness(0) saturate(100%) invert(27%) sepia(67%) saturate(3100%) hue-rotate(221deg) brightness(98%) contrast(96%);
}

.footer-divider {
  width: 1px;
  height: 38px;
  background: var(--border-subtle);
}

.footer-text {
  text-align: center;
  flex: 1;
}

.footer-brand {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.footer-tagline {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-style: italic;
}

.footer-aws-badge {
  height: 60px;
  width: auto;
  object-fit: contain;
}

/* --- Client Logo in Inline contexts --- */
.client-logo-img {
  max-height: 28px;
  width: auto;
  object-fit: contain;
}

.client-logo-fallback {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--gradient-hero);
  color: white;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.85rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* --- Responsive adjustments for logos --- */
@media (max-width: 768px) {
  .hero-logos-row {
    flex-direction: row;
    gap: var(--space-md);
  }

  .hero-logo {
    height: 36px;
  }

  .hero-logo-a3data {
    height: 56px;
  }

  .hero-logo-beta {
    height: 32px;
  }

  .hero-logos-divider {
    height: 40px;
  }

  .clients-logo-grid {
    grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    gap: var(--space-md);
  }

  .client-logo-card {
    height: 72px;
    padding: var(--space-md);
  }

  .client-logo-card img {
    max-height: 40px;
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
    gap: var(--space-lg);
  }

  .case-detail-logo-container {
    width: 80px;
    height: 60px;
    padding: var(--space-sm);
  }

  .footer-aws-badge {
    height: 48px;
  }
}

/* ============================================================
   Presentation Mode
   ============================================================ */
.presentation-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: var(--bg-primary);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  font-family: var(--font-body);
}

.presentation-header {
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-xl);
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.presentation-close {
  padding: var(--space-xs) var(--space-sm);
  background: rgba(255, 97, 216, 0.1);
  color: var(--accent-cyan);
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition: var(--transition-fast);
}

.presentation-close:hover {
  background: var(--accent-cyan);
  color: white;
}

.presentation-body {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-2xl);
  overflow-y: auto;
}

.presentation-slide {
  width: 100%;
  max-width: 1100px;
  max-height: 100%;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-3xl);
  display: none;
  animation: slideFadeIn 0.5s ease forwards;
  overflow-y: auto;
}

.presentation-slide.active {
  display: block;
}

@keyframes slideFadeIn {
  from { opacity: 0; transform: scale(0.98); }
  to { opacity: 1; transform: scale(1); }
}

.presentation-footer {
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-xl);
  background: var(--bg-card);
  border-top: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.presentation-controls {
  display: flex;
  gap: var(--space-md);
  align-items: center;
}

.presentation-btn-nav {
  padding: var(--space-sm) var(--space-lg);
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-weight: 600;
  color: var(--text-primary);
  transition: var(--transition-base);
}

.presentation-btn-nav:hover:not(:disabled) {
  background: var(--gradient-violet);
  color: white;
  border-color: transparent;
}

.presentation-btn-nav:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.presentation-progress {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* Slide Specific Styles */
.slide-cover {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  min-height: 500px;
}

.slide-cover .hero-logos-row {
  margin-bottom: var(--space-2xl);
}

.slide-cover h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  margin-bottom: var(--space-lg);
}

.slide-title {
  margin-bottom: var(--space-2xl);
  text-align: center;
  font-size: 2.2rem;
}

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

.interactive-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  text-align: center;
  cursor: pointer;
  transition: var(--transition-base);
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.interactive-card:hover {
  transform: translateY(-5px);
  background: white;
  box-shadow: var(--shadow-md);
  border-color: var(--accent-violet);
}

.interactive-card .icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
}

.interactive-card h3 {
  font-size: 1.2rem;
  color: var(--text-primary);
}

.company-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.company-logo-card {
  background: white;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

.company-logo-card:hover {
  border-color: var(--accent-violet);
  box-shadow: var(--shadow-sm);
  transform: scale(1.05);
}

.company-logo-card img {
  max-width: 100%;
  max-height: 60px;
  object-fit: contain;
}

.slide-breadcrumbs {
  margin-bottom: var(--space-lg);
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.slide-breadcrumbs span {
  cursor: pointer;
  color: var(--accent-violet);
}

.slide-breadcrumbs span:hover {
  text-decoration: underline;
}

.project-detail-slide {
  text-align: left;
}

.project-detail-slide .metrics-grid {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-xl);
}