/* ═══════════════════════════════════════════════════════════════════
   MES INDUSTRY 4.0 — Premium Dark Tech Site
   Visual Reference: HSI Smart Solutions (dark navy, electric blue)
   Colors: #050E1A (bg), #00AEEF (accent blue), #0A1628 (surface)
   Font: Inter (body), JetBrains Mono (code/numbers)
   ═══════════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@300;400;500;600&display=swap');

/* ══════════════════════ CSS CUSTOM PROPERTIES ══════════════════════ */
:root {
  /* Core Colors */
  --bg-deep:        #020B14;
  --bg-dark:        #050E1A;
  --bg-surface:     #081525;
  --bg-card:        #0A1E30;
  --bg-card-hover:  #0E2540;

  /* Accent - Electric Blue */
  --accent:         #00AEEF;
  --accent-dim:     rgba(0, 174, 239, 0.15);
  --accent-glow:    rgba(0, 174, 239, 0.25);
  --accent-glow-strong: rgba(0, 174, 239, 0.45);
  --accent-hover:   #22BEFF;

  /* Borders */
  --border:         rgba(0, 174, 239, 0.12);
  --border-hover:   rgba(0, 174, 239, 0.35);
  --border-subtle:  rgba(255, 255, 255, 0.06);

  /* Text */
  --text-primary:   #E8F4FC;
  --text-secondary: #7BA4BE;
  --text-muted:     #4A7490;
  --white:          #FFFFFF;

  /* Fonts */
  --font:      'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  /* Layout */
  --max-w:    1240px;
  --radius:   10px;
  --radius-lg: 16px;

  /* Transitions */
  --ease:       all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --ease-fast:  all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

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

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: var(--border-hover); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

a { color: inherit; text-decoration: none; transition: var(--ease-fast); }
img { display: block; max-width: 100%; }
button { cursor: pointer; }
ul { list-style: none; }

/* ══════════════════════ BACKGROUND GRID ══════════════════════ */
.bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 174, 239, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 174, 239, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: 0;
  pointer-events: none;
}

/* ══════════════════════ LAYOUT HELPERS ══════════════════════ */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 40px;
}

.section {
  position: relative;
  padding: 110px 0;
  z-index: 2;
}

.section-header {
  margin-bottom: 72px;
}

.section-header.center {
  text-align: center;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--white);
  margin-bottom: 20px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  font-weight: 400;
}

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

.gradient-text {
  background: linear-gradient(135deg, var(--accent) 0%, #7EE8FA 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.highlight-text {
  color: var(--accent);
  font-weight: 600;
}

.desktop-br { display: block; }

/* ══════════════════════ BADGE ══════════════════════ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-dim);
  border: 1px solid var(--border-hover);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: 6px 14px;
  border-radius: 4px;
  margin-bottom: 20px;
}

.badge-dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent);
  animation: pulse-dot 1.8s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; box-shadow: 0 0 8px var(--accent); }
  50%       { opacity: 0.5; box-shadow: 0 0 16px var(--accent); }
}

/* ══════════════════════ BUTTONS ══════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  transition: var(--ease);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg-deep);
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow-strong);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.btn-large {
  padding: 18px 40px;
  font-size: 1.05rem;
}

.btn-icon {
  width: 16px;
  height: 16px;
  transition: transform 0.25s ease;
  flex-shrink: 0;
}

.btn:hover .btn-icon {
  transform: translateX(4px);
}

/* ══════════════════════ TECH CARD BASE ══════════════════════ */
.tech-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--ease);
  position: relative;
  overflow: hidden;
}

.tech-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transition: opacity 0.4s;
}

.tech-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5), 0 0 30px var(--accent-dim);
}

.tech-card:hover::after {
  opacity: 1;
}

.tech-card.highlighted {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  box-shadow: 0 0 40px var(--accent-dim);
}

/* ══════════════════════ HEADER ══════════════════════ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 20px 0;
  z-index: 1000;
  transition: var(--ease);
}

.header.scrolled {
  background: rgba(2, 11, 20, 0.85);
  backdrop-filter: blur(20px);
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

/* Logo */
.logo-link { display: inline-flex; }

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  filter: drop-shadow(0 0 8px rgba(0, 174, 239, 0.5));
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-name {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.logo-accent {
  color: var(--accent);
}

.logo-sub {
  font-size: 0.6rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* Nav */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 4px 0;
  transition: color 0.2s;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s ease;
}

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

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--white);
  padding: 4px;
  z-index: 1001;
}

/* ══════════════════════ HERO SECTION ══════════════════════ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  position: relative;
  overflow: hidden;
  z-index: 2;
}

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

.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.25;
}

.hero-bg-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(2, 11, 20, 0.97) 0%,
    rgba(5, 14, 26, 0.85) 50%,
    rgba(2, 11, 20, 0.7) 100%
  );
}

.hero-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 10;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content {
  max-width: 640px;
}

.hero-title {
  font-size: clamp(2.4rem, 4.5vw, 3.6rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.04em;
  color: var(--white);
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 560px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 20px 28px;
  background: rgba(8, 21, 37, 0.6);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
  width: fit-content;
}

.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.hero-stat-number {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--accent);
  line-height: 1;
}

.hero-stat-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.hero-stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
  flex-shrink: 0;
}

/* Hero Dashboard Card */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-dashboard-card {
  background: rgba(8, 21, 37, 0.7);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6), 0 0 50px var(--accent-dim);
  width: 100%;
  max-width: 480px;
  animation: float-card 6s ease-in-out infinite;
}

@keyframes float-card {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-10px); }
}

.dashboard-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  background: rgba(0, 0, 0, 0.3);
  border-bottom: 1px solid var(--border);
}

.dashboard-dots {
  display: flex;
  gap: 6px;
}

.dashboard-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border);
}

.dashboard-dots span:nth-child(1) { background: #FF5F57; }
.dashboard-dots span:nth-child(2) { background: #FFBD2E; }
.dashboard-dots span:nth-child(3) { background: #28C840; }

.dashboard-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  flex: 1;
}

.dashboard-live {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: #28C840;
  letter-spacing: 0.1em;
  animation: blink-live 2s infinite;
}

@keyframes blink-live {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

.dashboard-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.kpi-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.kpi-item {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  text-align: center;
}

.kpi-value {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--white);
  line-height: 1;
}

.kpi-value small {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.kpi-label {
  font-size: 0.65rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.kpi-trend {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
}

.kpi-trend.up { color: #28C840; }
.kpi-trend.down { color: var(--accent); }

/* Chart bars */
.chart-bar-area {
  background: rgba(0, 0, 0, 0.2);
  border-radius: 8px;
  padding: 16px;
  border: 1px solid var(--border);
}

.chart-bars {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  height: 80px;
}

.bar-group {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  height: 100%;
  justify-content: flex-end;
}

.bar {
  width: 100%;
  height: var(--h);
  background: rgba(0, 174, 239, 0.3);
  border-radius: 3px 3px 0 0;
  border-top: 1px solid rgba(0, 174, 239, 0.5);
  transition: all 0.5s ease;
  animation: bar-grow 1s ease-out both;
}

.bar.active {
  background: rgba(0, 174, 239, 0.7);
  border-color: var(--accent);
  box-shadow: 0 0 12px var(--accent-glow);
}

@keyframes bar-grow {
  from { height: 0; }
  to   { height: var(--h); }
}

.bar-group span {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--text-muted);
}

.alert-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.dash-alert {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 6px;
  border: 1px solid var(--border);
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.alert-icon {
  font-size: 0.9rem;
  flex-shrink: 0;
}

.alert-icon.green { color: #28C840; }
.alert-icon.yellow { color: #FFBD2E; }

/* Scroll cue */
.scroll-cue {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--text-muted);
  z-index: 10;
  animation: bounce-scroll 2s ease-in-out infinite;
}

.scroll-cue svg {
  width: 24px;
  height: 24px;
}

@keyframes bounce-scroll {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(8px); }
}

/* ══════════════════════ JORNADA SECTION ══════════════════════ */
.jornada {
  background: var(--bg-dark);
  border-top: 1px solid var(--border-subtle);
}

/* Maturity Track */
.maturity-track {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  position: relative;
}

.maturity-level {
  position: relative;
}

.level-card {
  padding: 28px 24px;
  height: 100%;
  cursor: default;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.level-number {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.15em;
  opacity: 0.7;
}

.level-icon svg {
  width: 48px;
  height: 48px;
  filter: drop-shadow(0 0 8px rgba(0, 174, 239, 0.3));
}

.level-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--white);
}

.level-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  flex: 1;
}

.level-tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.68rem;
  font-family: var(--font-mono);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
  width: fit-content;
  margin-top: auto;
}

.level-tag.mes-tag {
  background: var(--accent-dim);
  color: var(--accent);
  border-color: var(--border-hover);
}

.level-tag.gold {
  background: rgba(255, 193, 7, 0.1);
  color: #FFD700;
  border-color: rgba(255, 215, 0, 0.3);
}

/* Jornada Callout */
.jornada-callout {
  margin-top: 48px;
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 28px 32px;
  background: var(--accent-dim);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius-lg);
}

.callout-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.jornada-callout p {
  font-size: 1rem;
  color: var(--text-primary);
  line-height: 1.7;
}

.jornada-callout strong {
  color: var(--accent);
}

/* ══════════════════════ ELO SECTION ══════════════════════ */
.elo {
  background: var(--bg-deep);
}

.elo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.elo-text {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.elo-text strong {
  color: var(--text-primary);
  font-weight: 600;
}

.integration-title {
  font-size: 0.85rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-top: 32px;
  margin-bottom: 16px;
}

.sources-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.source-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 14px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: var(--ease-fast);
}

.source-chip:hover {
  border-color: var(--border-hover);
  color: var(--accent);
  background: var(--accent-dim);
}

.source-dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
}

/* Architecture Diagram */
.arch-diagram {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  position: relative;
}

.arch-layer {
  width: 100%;
}

.arch-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 20px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-align: center;
  transition: var(--ease);
  position: relative;
  overflow: hidden;
}

.arch-box:hover {
  border-color: var(--border-hover);
}

.arch-box span {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}

.arch-box small {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.arch-icon {
  font-size: 1.5rem;
}

.mes-box {
  background: linear-gradient(135deg, rgba(0, 174, 239, 0.15) 0%, rgba(0, 174, 239, 0.05) 100%);
  border: 2px solid var(--accent);
  box-shadow: 0 0 40px var(--accent-dim), inset 0 0 40px rgba(0, 174, 239, 0.03);
  padding: 28px 32px;
}

.mes-box span {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--accent);
}

.mes-box small {
  color: var(--text-secondary);
}

.mes-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(0, 174, 239, 0.08) 0%, transparent 70%);
  pointer-events: none;
  animation: mes-pulse 3s ease-in-out infinite;
}

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

.arch-connector-line {
  width: 2px;
  height: 36px;
  background: linear-gradient(to bottom, var(--accent), rgba(0, 174, 239, 0.3));
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}

.connector-pulse {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 10px;
  background: var(--accent);
  border-radius: 2px;
  box-shadow: 0 0 8px var(--accent);
  animation: data-flow 1.5s linear infinite;
}

@keyframes data-flow {
  0%   { top: -10px; opacity: 0; }
  20%  { opacity: 1; }
  80%  { opacity: 1; }
  100% { top: 100%; opacity: 0; }
}

.arch-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.arch-box.small {
  padding: 14px 16px;
}

.arch-box.small span {
  font-size: 0.78rem;
}

.arch-box.small .arch-icon {
  font-size: 1.25rem;
}

.digital-shadow-label {
  margin-top: 20px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--accent-dim);
  border: 1px solid var(--border-hover);
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.08em;
}

.digital-shadow-label svg {
  width: 16px;
  height: 16px;
}

/* ══════════════════════ NIVEIS SECTION ══════════════════════ */
.niveis {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.nivel-block {
  margin-bottom: 72px;
}

.nivel-block:last-child {
  margin-bottom: 0;
}

.nivel-header {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.nivel-num {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  opacity: 0.5;
  flex-shrink: 0;
}

.nivel-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--white);
}

.nivel-sub {
  font-weight: 400;
  color: var(--text-secondary);
  font-size: 1rem;
}

.nivel-intro {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 800px;
  margin-bottom: 32px;
}

/* KPI Cards Grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
}

.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: var(--ease);
}

.kpi-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.kpi-card-icon {
  font-size: 1.5rem;
  margin-bottom: 4px;
}

.kpi-card strong {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--white);
}

.kpi-card span {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* Causas Grid */
.causas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.causa-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: var(--ease);
}

.causa-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.causa-icon {
  font-size: 1.5rem;
}

.causa-card strong {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--white);
}

.causa-card p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ══════════════════════ DIFERENCIAL SECTION ══════════════════════ */
.diferencial {
  background: var(--bg-dark);
}

/* Compare Grid */
.compare-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0;
  align-items: stretch;
  margin-bottom: 60px;
}

.compare-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.compare-card.highlighted {
  background: linear-gradient(135deg, rgba(0, 174, 239, 0.1) 0%, var(--bg-card) 100%);
  border-color: var(--border-hover);
  box-shadow: 0 0 50px var(--accent-dim);
}

.compare-card-header {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.compare-icon {
  font-size: 2rem;
}

.compare-card-header h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
}

.compare-badge {
  display: inline-flex;
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  width: fit-content;
}

.compare-badge.neutral {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
}

.compare-badge.accent {
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid var(--border-hover);
}

.compare-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.compare-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.compare-item::before {
  font-size: 0.8rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.compare-item.check::before {
  content: '✓';
  color: var(--accent);
  font-weight: 700;
}

.compare-item.cross::before {
  content: '✕';
  color: var(--text-muted);
  font-weight: 600;
}

.compare-vs {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
  font-size: 2rem;
  font-weight: 300;
  color: var(--accent);
  opacity: 0.5;
  align-self: center;
}

/* Quote */
.diferencial-quote {
  margin-bottom: 60px;
}

.diferencial-quote blockquote {
  padding: 32px 40px;
  border-left: 3px solid var(--accent);
  background: var(--bg-surface);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.diferencial-quote p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
  font-style: italic;
}

.diferencial-quote strong {
  color: var(--accent);
  font-style: normal;
}

/* Predictive Block */
.predictive-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
  padding: 48px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.predictive-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 20px;
  margin-top: 12px;
}

.predictive-content p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.predictive-content p strong {
  color: var(--text-primary);
}

.predictive-cards {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pred-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--ease-fast);
}

.pred-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateX(4px);
}

.pred-icon {
  font-size: 1.25rem;
  flex-shrink: 0;
}

.pred-card span {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-primary);
}

/* ══════════════════════ ADAPTABILIDADE SECTION ══════════════════════ */
.adaptabilidade {
  background: var(--bg-deep);
}

.adapt-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.adapt-text {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.adapt-actions {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.adapt-action {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  transition: var(--ease-fast);
}

.adapt-action:last-child {
  border-bottom: none;
}

.adapt-action:hover .action-indicator {
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent-glow);
}

.action-indicator {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border-hover);
  flex-shrink: 0;
  margin-top: 6px;
  transition: var(--ease-fast);
}

.action-content {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.action-content strong {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--white);
}

.action-content span {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ══════════════════════ CONCLUSAO SECTION ══════════════════════ */
.conclusao {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.conclusao-inner {
  position: relative;
  z-index: 2;
  max-width: 900px;
  margin: 0 auto;
}

.conclusao-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 32px;
}

.conclusao-text {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}

.conclusao-text strong {
  color: var(--text-primary);
}

.cta-block {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin: 52px 0;
}

.conclusao-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.c-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.c-stat-num {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.c-stat-sym {
  font-size: 1.4rem;
}

.c-stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-align: center;
}

.conclusao-glow {
  position: absolute;
  bottom: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 300px;
  background: radial-gradient(ellipse, rgba(0, 174, 239, 0.1) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* ══════════════════════ FOOTER ══════════════════════ */
.footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border-subtle);
  padding: 60px 0 40px;
  position: relative;
  z-index: 2;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.5fr;
  gap: 60px;
  margin-bottom: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border-subtle);
}

.footer-tagline {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 16px;
  line-height: 1.6;
}

.footer-nav h4,
.footer-model h4 {
  font-size: 0.8rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-nav a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: color 0.2s;
}

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

.footer-model p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.footer-model strong {
  color: var(--accent);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-copy {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer-tech {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  opacity: 0.6;
}

/* ══════════════════════ PARTICLES ANIMATION ══════════════════════ */
.particle {
  position: absolute;
  width: 2px;
  height: 2px;
  background: var(--accent);
  border-radius: 50%;
  animation: particle-float linear infinite;
  opacity: 0;
}

@keyframes particle-float {
  0%   { transform: translateY(100vh) translateX(0); opacity: 0; }
  10%  { opacity: 0.6; }
  90%  { opacity: 0.6; }
  100% { transform: translateY(-10vh) translateX(30px); opacity: 0; }
}

/* ══════════════════════ INTERSECTION OBSERVER ANIMATIONS ══════════════════════ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Stagger children */
.stagger-children > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.stagger-children.visible > *:nth-child(1) { opacity: 1; transform: translateY(0); transition-delay: 0s; }
.stagger-children.visible > *:nth-child(2) { opacity: 1; transform: translateY(0); transition-delay: 0.08s; }
.stagger-children.visible > *:nth-child(3) { opacity: 1; transform: translateY(0); transition-delay: 0.16s; }
.stagger-children.visible > *:nth-child(4) { opacity: 1; transform: translateY(0); transition-delay: 0.24s; }
.stagger-children.visible > *:nth-child(5) { opacity: 1; transform: translateY(0); transition-delay: 0.32s; }
.stagger-children.visible > *:nth-child(6) { opacity: 1; transform: translateY(0); transition-delay: 0.40s; }
.stagger-children.visible > *:nth-child(7) { opacity: 1; transform: translateY(0); transition-delay: 0.48s; }

/* ══════════════════════ RESPONSIVE ══════════════════════ */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero-visual {
    display: none;
  }

  .elo-grid,
  .adapt-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .predictive-block {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 32px;
  }

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

  .compare-vs {
    display: none;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
  }

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

@media (max-width: 768px) {
  .container { padding: 0 24px; }

  .section { padding: 80px 0; }

  /* Nav mobile */
  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(5, 14, 26, 0.97);
    backdrop-filter: blur(20px);
    border-left: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 1000;
  }

  .nav.open {
    right: 0;
  }

  .nav-menu {
    flex-direction: column;
    gap: 24px;
    align-items: flex-start;
    padding: 40px;
  }

  .nav-link {
    font-size: 1.15rem;
  }

  .menu-toggle {
    display: block;
  }

  .header-actions .btn-primary {
    display: none;
  }

  .hero-title {
    font-size: 2.4rem;
  }

  .hero-stats {
    flex-direction: column;
    gap: 16px;
    align-items: flex-start;
  }

  .hero-stat-divider {
    width: 40px;
    height: 1px;
  }

  .maturity-track {
    grid-template-columns: 1fr;
  }

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

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

  .conclusao-stats {
    flex-direction: column;
    gap: 24px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

  .desktop-br { display: none; }
}

@media (max-width: 480px) {
  .hero-cta-group {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    justify-content: center;
  }

  .cta-block {
    flex-direction: column;
    align-items: stretch;
  }

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