/* ==========================================================================
   SCADA-LTZ CORPORATE STYLESHEET
   Design System: Industrial Engineering & High Performance
   Inspirado nas grandes referências de sistemas SCADA (Elipse, Emerson, Siemens)
   Author: Zeitounian Tecnologia Ltda
   ========================================================================== */

:root {
  color-scheme: light dark;

  /* Cores Industriais Corporativas */
  --color-primary: #0066cc;
  --color-primary-hover: #004d99;
  --color-primary-dark: #003366;
  --color-primary-light: #e6f0fa;
  --color-accent: #059669; /* Verde Industrial */
  --color-accent-hover: #047857;
  --color-warning: #d97706;
  --color-danger: #dc2626;

  /* Modo Escuro (Padrão de Salas de Controle CCO) */
  --bg-body: #0b1329;
  --bg-surface: #0f1d38;
  --bg-surface-elevated: #182849;
  --bg-surface-glass: rgba(15, 29, 56, 0.92);
  --border-subtle: rgba(255, 255, 255, 0.1);
  --border-medium: rgba(255, 255, 255, 0.2);

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.45);
  --shadow-card: 0 4px 16px rgba(0, 0, 0, 0.3);

  /* Tipografia */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

/* Modo Claro Corporativo (Padrão de Engenharia de Projeto) */
[data-theme="light"] {
  --bg-body: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #f1f5f9;
  --bg-surface-glass: rgba(255, 255, 255, 0.95);
  --border-subtle: #e2e8f0;
  --border-medium: #cbd5e1;

  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #64748b;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
  --shadow-card: 0 2px 10px rgba(0, 0, 0, 0.06);
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-body);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

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

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

/* ==========================================================================
   TOP UTILITY BAR (PADRÃO ELIPSE / EMERSON)
   ========================================================================== */

.utility-bar {
  background-color: #060c1a;
  color: #94a3b8;
  font-size: 0.8rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding: 6px 0;
  z-index: 1001;
  position: relative;
}

.utility-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.utility-left, .utility-right {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.utility-link {
  color: #94a3b8;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: color var(--transition-fast);
}

.utility-link:hover {
  color: #ffffff;
}

.utility-icon {
  font-size: 0.85rem;
}

.system-status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #cbd5e1;
  font-size: 0.78rem;
}

.status-dot-green {
  width: 8px;
  height: 8px;
  background-color: #10b981;
  border-radius: 50%;
  box-shadow: 0 0 6px #10b981;
}

.lang-selector {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: #94a3b8;
}

.lang-item.active {
  color: #38bdf8;
  font-weight: 700;
}

.lang-divider {
  color: rgba(255, 255, 255, 0.2);
}

.utility-login-btn {
  background-color: rgba(0, 102, 204, 0.2);
  border: 1px solid rgba(0, 102, 204, 0.5);
  color: #38bdf8;
  padding: 3px 10px;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.78rem;
  transition: all var(--transition-fast);
}

.utility-login-btn:hover {
  background-color: var(--color-primary);
  color: #ffffff;
}

/* ==========================================================================
   HEADER INSTITUCIONAL & MEGA DROPDOWN
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--bg-surface-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--transition-fast);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-logo {
  display: flex;
  align-items: center;
}

.logo-img {
  height: 38px;
  width: auto;
  object-fit: contain;
}

.main-nav .nav-list {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.nav-item {
  position: relative;
}

.nav-link {
  font-size: 0.925rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition-fast);
  padding: 10px 0;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

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

.arrow-down {
  font-size: 0.75rem;
  transition: transform var(--transition-fast);
}

.nav-item:hover .arrow-down {
  transform: rotate(180deg);
}

/* Mega Dropdown Menu */
.mega-dropdown {
  position: absolute;
  top: 100%;
  left: -20px;
  width: 520px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: 8px;
  padding: 16px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-fast);
  pointer-events: none;
  z-index: 1050;
}

.nav-item:hover .mega-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

.mega-dropdown-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.dropdown-card {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px;
  border-radius: 6px;
  transition: background-color var(--transition-fast);
}

.dropdown-card:hover {
  background-color: var(--bg-surface-elevated);
}

.dropdown-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
}

.dropdown-card strong {
  display: block;
  font-size: 0.875rem;
  color: var(--text-main);
  margin-bottom: 2px;
}

.dropdown-card span {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.35;
}

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

/* Botões */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 9px 18px;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #ffffff;
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
}

.btn-secondary {
  background-color: var(--bg-surface-elevated);
  border-color: var(--border-medium);
  color: var(--text-main);
}

.btn-secondary:hover {
  background-color: var(--bg-surface);
  border-color: var(--color-primary);
}

.btn-outline {
  background: transparent;
  border-color: var(--border-medium);
  color: var(--text-main);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.825rem;
}

.btn-lg {
  padding: 12px 24px;
  font-size: 1rem;
}

.btn-block {
  width: 100%;
}

.theme-btn {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  width: 38px;
  height: 38px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.05rem;
  transition: all var(--transition-fast);
}

.theme-btn:hover {
  border-color: var(--color-primary);
}

[data-theme="light"] .theme-icon--sun { display: none; }
[data-theme="light"] .theme-icon--moon { display: inline-block; }
[data-theme="dark"] .theme-icon--sun { display: inline-block; }
[data-theme="dark"] .theme-icon--moon { display: none; }

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.hamburger-line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-main);
  margin: 5px 0;
  transition: all var(--transition-fast);
}

/* ==========================================================================
   HERO SECTION CORPORATIVO SÓBRIO
   ========================================================================== */

.hero-section {
  padding: 56px 0 64px 0;
  border-bottom: 1px solid var(--border-subtle);
  background: radial-gradient(circle at 80% 20%, rgba(0, 102, 204, 0.08) 0%, transparent 60%);
}

.hero-container {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: center;
}

.hero-badge-corporate {
  display: inline-block;
  background-color: rgba(0, 102, 204, 0.12);
  border: 1px solid rgba(0, 102, 204, 0.35);
  color: #38bdf8;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 4px 12px;
  border-radius: 4px;
  margin-bottom: 18px;
}

.hero-title {
  font-size: 2.65rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text-main);
  margin-bottom: 18px;
}

.hero-description {
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text-muted);
  margin-bottom: 28px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.hero-standards-bar {
  border-top: 1px solid var(--border-subtle);
  padding-top: 20px;
}

.standards-title {
  display: block;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  font-weight: 600;
  margin-bottom: 10px;
}

.standards-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.std-badge {
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-medium);
  color: var(--text-main);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 4px;
}

/* ==========================================================================
   SIMULADOR SCADA AO VIVO (HERO RIGHT)
   ========================================================================== */

.scada-window-card {
  background-color: #0b1322;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  color: #f8fafc;
}

.scada-window-header {
  background-color: #060c18;
  padding: 10px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.8rem;
}

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

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #10b981; }

.window-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: #cbd5e1;
}

.live-badge {
  background: #059669;
  color: #ffffff;
  font-size: 0.68rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 3px;
  letter-spacing: 0.04em;
}

.window-time {
  font-family: var(--font-mono);
  color: #38bdf8;
  font-weight: 600;
}

.scada-window-body {
  padding: 16px;
}

.synoptic-board {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
  background-color: #0d182b;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 6px;
  padding: 14px;
  margin-bottom: 14px;
}

.synoptic-device {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.device-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: #94a3b8;
  margin-bottom: 8px;
}

.device-telemetry {
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 100%;
}

.tag-box {
  background-color: #060c18;
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 3px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  display: flex;
  justify-content: space-between;
}

.tag-name { color: #64748b; }
.tag-val { color: #38bdf8; font-weight: 600; }
.tag-unit { color: #94a3b8; font-size: 0.68rem; }
.tag-highlight { color: #34d399 !important; }

/* Trafo */
.trafo-core {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 4px 0 10px 0;
}

.trafo-core .coil {
  width: 26px;
  height: 26px;
  border: 2px solid #38bdf8;
  border-radius: 50%;
}

.trafo-core .coil.secondary {
  margin-left: -8px;
  border-color: #f59e0b;
}

/* Breaker */
.breaker-state {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 4px;
  margin-bottom: 8px;
}

.breaker-closed {
  background-color: rgba(220, 38, 38, 0.2);
  color: #ef4444;
  border: 1px solid #ef4444;
}

.breaker-closed .status-indicator {
  width: 8px;
  height: 8px;
  background-color: #ef4444;
  border-radius: 50%;
}

.breaker-open {
  background-color: rgba(16, 185, 129, 0.2);
  color: #10b981;
  border: 1px solid #10b981;
}

.breaker-open .status-indicator {
  width: 8px;
  height: 8px;
  background-color: #10b981;
  border-radius: 50%;
}

.btn-scada-cmd {
  background-color: #1e293b;
  border: 1px solid #334155;
  color: #cbd5e1;
  font-size: 0.72rem;
  padding: 4px 8px;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-scada-cmd:hover {
  background-color: #0066cc;
  color: #ffffff;
  border-color: #0066cc;
}

/* Subgrid Horímetro & Auditoria */
.scada-subgrid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.mini-card {
  background-color: #0d182b;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 6px;
  padding: 10px 12px;
}

.mini-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  font-weight: 600;
  color: #94a3b8;
  margin-bottom: 8px;
}

.badge-status-normal {
  background-color: #065f46;
  color: #34d399;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: 3px;
}

.badge-hash {
  background-color: #1e293b;
  color: #94a3b8;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 1px 5px;
  border-radius: 3px;
}

.horimeter-val {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  color: #38bdf8;
  margin-bottom: 4px;
}

.horimeter-bar {
  background-color: #1e293b;
  height: 6px;
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 6px;
}

.horimeter-fill {
  background-color: #0066cc;
  height: 100%;
}

.horimeter-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.68rem;
  color: #64748b;
}

.audit-stream {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
}

.audit-item {
  display: flex;
  gap: 6px;
  color: #94a3b8;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  padding-bottom: 3px;
}

.audit-time { color: #64748b; }
.audit-user { color: #38bdf8; font-weight: 600; }
.audit-action { color: #cbd5e1; flex-grow: 1; }
.audit-hash { color: #64748b; }

/* ==========================================================================
   SEÇÕES GERAIS E TIPOGRAFIA
   ========================================================================== */

.section {
  padding: 72px 0;
  border-bottom: 1px solid var(--border-subtle);
}

.section-header {
  max-width: 820px;
  margin: 0 auto 48px auto;
}

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

.section-tag {
  display: inline-block;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  font-weight: 700;
  margin-bottom: 8px;
}

.section-title {
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.25;
  margin-bottom: 14px;
  letter-spacing: -0.015em;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   PILARES TECNOLÓGICOS (4 CARDS)
   ========================================================================== */

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.pillar-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 24px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.pillar-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-primary);
}

.pillar-icon-box {
  width: 44px;
  height: 44px;
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-medium);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.pillar-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
}

.pillar-text {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin-bottom: 16px;
  flex-grow: 1;
}

.pillar-features {
  list-style: none;
  font-size: 0.825rem;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 6px;
  border-top: 1px solid var(--border-subtle);
  padding-top: 12px;
}

.pillar-features li::before {
  content: "✓ ";
  color: var(--color-accent);
  font-weight: 700;
}

/* ==========================================================================
   DIAGRAMA DE ARQUITETURA EM CAMADAS (ESTILO ELIPSE / EMERSON)
   ========================================================================== */

.architecture-diagram-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: 8px;
  padding: 24px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.arch-layer-row {
  border: 1px solid var(--border-medium);
  border-radius: 6px;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 24px;
  background-color: var(--bg-surface-elevated);
}

.arch-layer-badge {
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--color-primary);
  width: 220px;
  flex-shrink: 0;
  border-right: 2px solid var(--border-medium);
  padding-right: 16px;
}

.arch-layer-content {
  display: flex;
  gap: 16px;
  flex-grow: 1;
  flex-wrap: wrap;
}

.arch-node-item {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  padding: 10px 14px;
  flex: 1;
  min-width: 200px;
}

.arch-node-item strong {
  display: block;
  font-size: 0.875rem;
  color: var(--text-main);
  margin-bottom: 2px;
}

.arch-node-item span {
  display: block;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.highlight-node {
  border-color: var(--color-primary);
  background-color: rgba(0, 102, 204, 0.05);
}

.server-node {
  border-color: var(--color-accent);
  background-color: rgba(5, 150, 105, 0.05);
}

.heartbeat-sync {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  color: var(--color-accent);
  font-weight: 700;
}

.pulse-line {
  width: 40px;
  height: 2px;
  background-color: var(--color-accent);
  margin-bottom: 4px;
}

.arch-connector-line {
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

/* ==========================================================================
   SOLUÇÕES POR SETOR (ABAS INTERATIVAS)
   ========================================================================== */

.sector-tabs-container {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sector-tab-nav {
  display: flex;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--border-medium);
  padding-bottom: 12px;
}

.sector-tab-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.sector-tab-btn:hover {
  color: var(--text-main);
  background-color: var(--bg-surface-elevated);
}

.sector-tab-btn.active {
  background-color: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
}

.sector-tab-panel {
  display: none;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: 8px;
  padding: 32px;
  box-shadow: var(--shadow-sm);
}

.sector-tab-panel.active {
  display: block;
}

.sector-panel-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 40px;
  align-items: center;
}

.sector-panel-text h3 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 12px;
}

.sector-panel-text p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
}

.sector-specs-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
  font-size: 0.875rem;
  color: var(--text-main);
}

.sector-specs-list li::before {
  content: "■ ";
  color: var(--color-primary);
  font-size: 0.8rem;
}

.spec-highlight-card {
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-medium);
  border-radius: 8px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.spec-highlight-card h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 10px;
}

.highlight-metric {
  display: flex;
  flex-direction: column;
}

.h-val {
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--color-primary);
  font-family: var(--font-mono);
}

.h-label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ==========================================================================
   MATRIZ DE PROTOCOLOS (8 CARDS CORPORATIVOS)
   ========================================================================== */

.protocol-grid-corporate {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.corp-proto-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 20px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.corp-proto-card:hover {
  transform: translateY(-2px);
  border-color: var(--color-primary);
}

.corp-proto-header {
  margin-bottom: 10px;
}

.proto-tag {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  padding: 2px 6px;
  border-radius: 3px;
  margin-bottom: 6px;
}

.proto-tag.electric { background-color: rgba(0, 102, 204, 0.15); color: #38bdf8; }
.proto-tag.industry { background-color: rgba(5, 150, 105, 0.15); color: #34d399; }
.proto-tag.iot { background-color: rgba(168, 85, 247, 0.15); color: #c084fc; }
.proto-tag.bms { background-color: rgba(245, 158, 11, 0.15); color: #fbbf24; }

.corp-proto-header h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
}

.corp-proto-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 14px;
  flex-grow: 1;
}

.proto-attributes {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  border-top: 1px solid var(--border-subtle);
  padding-top: 10px;
}

.proto-attributes span {
  background-color: var(--bg-surface-elevated);
  font-size: 0.72rem;
  color: var(--text-dim);
  padding: 2px 6px;
  border-radius: 3px;
}

/* ==========================================================================
   TABELA DE ESPECIFICAÇÕES TÉCNICAS DE ENGENHARIA
   ========================================================================== */

.specs-table-wrapper {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: 8px;
  overflow-x: auto;
  box-shadow: var(--shadow-sm);
}

.corporate-specs-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  text-align: left;
}

.corporate-specs-table th {
  background-color: var(--bg-surface-elevated);
  color: var(--text-main);
  font-weight: 700;
  padding: 14px 20px;
  border-bottom: 2px solid var(--border-medium);
  font-size: 0.825rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.corporate-specs-table td {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-muted);
}

.corporate-specs-table tr:hover td {
  background-color: rgba(0, 102, 204, 0.03);
}

.corporate-specs-table td strong {
  color: var(--text-main);
}

/* ==========================================================================
   MANUTENÇÃO PREDITIVA (4 CARDS)
   ========================================================================== */

.pred-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.pred-feature-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 22px;
  box-shadow: var(--shadow-sm);
}

.pred-icon {
  font-size: 1.8rem;
  margin-bottom: 12px;
}

.pred-feature-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.pred-feature-card p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* ==========================================================================
   CALCULADORA TCO
   ========================================================================== */

.tco-box {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: 8px;
  padding: 40px;
  box-shadow: var(--shadow-md);
  max-width: 900px;
  margin: 0 auto;
}

.tco-slider-group {
  margin-top: 24px;
}

.tco-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1rem;
  color: var(--text-main);
  margin-bottom: 14px;
}

.tco-label strong {
  font-size: 1.4rem;
  color: var(--color-primary);
  font-family: var(--font-mono);
}

.tco-range-slider {
  width: 100%;
  height: 8px;
  border-radius: 4px;
  outline: none;
  cursor: pointer;
  accent-color: var(--color-primary);
}

.slider-ticks {
  display: flex;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
  margin-top: 6px;
  margin-bottom: 28px;
}

.tco-metrics-breakdown {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}

.tco-col {
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-medium);
  border-radius: 6px;
  padding: 20px;
  position: relative;
}

.tco-col.ltz {
  border-color: var(--color-accent);
  background-color: rgba(5, 150, 105, 0.04);
}

.popular-ribbon {
  position: absolute;
  top: -10px;
  right: 14px;
  background-color: var(--color-accent);
  color: #ffffff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 3px;
  text-transform: uppercase;
}

.tco-cost {
  font-size: 1.85rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--text-main);
  margin: 8px 0;
}

.text-success { color: var(--color-accent) !important; }

.tco-savings-banner {
  background-color: var(--color-primary);
  color: #ffffff;
  padding: 16px 20px;
  border-radius: 6px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.05rem;
}

.tco-savings-banner strong {
  font-size: 1.4rem;
  font-family: var(--font-mono);
}

/* ==========================================================================
   DOWNLOADS DE ENGENHARIA
   ========================================================================== */

.downloads-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.download-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: 8px;
  padding: 24px;
  display: flex;
  flex-direction: column;
}

.download-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.download-card h4 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.download-card p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin-bottom: 14px;
  flex-grow: 1;
}

.code-snippet {
  background-color: #060c18;
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 8px 10px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: #38bdf8;
  margin-bottom: 16px;
  overflow-x: auto;
}

.doc-meta {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-bottom: 16px;
}

/* ==========================================================================
   SERVIÇOS DE ENGENHARIA (4 CARDS)
   ========================================================================== */

.support-cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.support-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 22px;
  box-shadow: var(--shadow-sm);
}

.support-icon {
  font-size: 1.8rem;
  margin-bottom: 12px;
}

.support-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.support-card p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* ==========================================================================
   FORMULÁRIO DE CONTATO ESPECIALIZADO
   ========================================================================== */

.contact-box {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 48px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: 8px;
  padding: 40px;
  box-shadow: var(--shadow-md);
}

.contact-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 24px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.c-icon {
  font-size: 1.25rem;
}

.contact-item strong {
  display: block;
  font-size: 0.85rem;
  color: var(--text-main);
}

.contact-item span, .contact-item a {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.contact-item a:hover {
  color: var(--color-primary);
}

.contact-form h3 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}

.form-sub {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.form-group {
  margin-bottom: 14px;
}

.form-group label {
  display: block;
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 6px;
}

.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 10px 12px;
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-medium);
  border-radius: 5px;
  color: var(--text-main);
  font-size: 0.875rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: var(--color-primary);
}

.form-feedback {
  margin-top: 12px;
  padding: 10px;
  border-radius: 5px;
  font-size: 0.875rem;
}
.form-feedback.success { background-color: #065f46; color: #a7f3d0; }
.form-feedback.error { background-color: #991b1b; color: #fecaca; }

/* ==========================================================================
   FOOTER CORPORATIVO
   ========================================================================== */

.site-footer {
  background-color: #060c18;
  color: #94a3b8;
  padding: 56px 0 24px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-container {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-logo {
  height: 34px;
  width: auto;
  margin-bottom: 14px;
}

.footer-text {
  font-size: 0.85rem;
  line-height: 1.6;
  margin-bottom: 16px;
}

.footer-corporate-info {
  font-size: 0.78rem;
  color: #64748b;
  line-height: 1.5;
}

.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: #f8fafc;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 14px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.85rem;
}

.footer-links a {
  color: #94a3b8;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: #ffffff;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 20px;
}

.footer-bottom-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: #64748b;
  flex-wrap: wrap;
  gap: 10px;
}

/* ==========================================================================
   RESPONSIVIDADE INDUSTRIAL
   ========================================================================== */

@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
  }
  .pillars-grid, .protocol-grid-corporate, .pred-grid, .support-cards-grid {
    grid-template-columns: 1fr 1fr;
  }
  .downloads-grid {
    grid-template-columns: 1fr;
  }
  .contact-box {
    grid-template-columns: 1fr;
  }
  .footer-container {
    grid-template-columns: 1fr 1fr;
  }
  .sector-panel-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .utility-bar { display: none; }
  .main-nav { display: none; }
  .mobile-menu-btn { display: block; }

  .hero-title {
    font-size: 2rem;
  }

  .pillars-grid, .protocol-grid-corporate, .pred-grid, .support-cards-grid {
    grid-template-columns: 1fr;
  }

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

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

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

  .arch-layer-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .arch-layer-badge {
    width: 100%;
    border-right: none;
    border-bottom: 2px solid var(--border-medium);
    padding-bottom: 8px;
  }
}