/* FleetCalc Pro - User's Guide (Guia do Usuário)
   Cockpit Engineering Theme by Intrace Solutions */

:root {
  --bg-primary: #080c14;
  --bg-card: #101622;
  --bg-card-hover: #151d2d;
  --bg-card-subtle: #0d121c;
  --border-color: #202a3c;
  --border-accent: #ff9100;
  --text-main: #e6edf3;
  --text-muted: #8b949e;
  --accent-cyan: #00e5ff;
  --accent-amber: #ff9100;
  --accent-green: #69f0ae;
  --accent-purple: #b388ff;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "SF Mono", Monaco, Consolas, "Liberation Mono", Menlo, Courier, monospace;
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Header & Top Bar */
.guide-header {
  background: #0d121c;
  border-bottom: 1px solid var(--border-color);
  padding: 14px 24px;
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.guide-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-title {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: #ffffff;
}

.brand-title span.orange {
  color: var(--accent-amber);
}

.brand-subtitle {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

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

.lang-select {
  background: #182030;
  color: #f0f6fc;
  border: 1px solid #2d3b55;
  padding: 6px 10px;
  border-radius: 4px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

.btn-calc-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #1f2738;
  color: #00e5ff;
  border: 1px solid #00e5ff;
  padding: 6px 14px;
  border-radius: 4px;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn-calc-link:hover {
  background: #00e5ff;
  color: #080c14;
}

.btn-back-menu {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, #1c2536 0%, #151d2c 100%);
  color: #ff9100;
  border: 1px solid #ff9100;
  padding: 8px 16px;
  border-radius: 4px;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn-back-menu:hover {
  background: #ff9100;
  color: #080c14;
  box-shadow: 0 2px 8px rgba(255, 145, 0, 0.4);
}

/* Main Container */
.guide-container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 30px 20px 80px 20px;
}

/* Hero Section */
.hero-card {
  background: linear-gradient(135deg, #111724 0%, #0d121c 100%);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--accent-amber);
  border-radius: 8px;
  padding: 28px;
  margin-bottom: 30px;
}

.hero-title {
  font-size: 26px;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 10px;
}

.hero-desc {
  font-size: 15px;
  color: #c9d1d9;
  line-height: 1.7;
}

/* Menu Grid */
.menu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-bottom: 40px;
}

.menu-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 24px;
  text-decoration: none;
  color: inherit;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.menu-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-amber);
  transform: translateY(-3px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.4);
}

.menu-card-icon {
  font-size: 32px;
  margin-bottom: 12px;
}

.menu-card-title {
  font-size: 18px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 8px;
}

.menu-card-desc {
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 16px;
}

.menu-card-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 4px 10px;
  border-radius: 4px;
  background: #182234;
  color: var(--accent-cyan);
  align-self: flex-start;
}

/* Sections on Menu Page */
.info-section {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 26px;
  margin-bottom: 24px;
}

.section-title {
  font-size: 20px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-title span.badge {
  font-size: 12px;
  background: #1a2436;
  color: var(--accent-amber);
  padding: 3px 8px;
  border-radius: 4px;
  font-weight: 700;
}

.feature-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 14px;
  margin-top: 14px;
}

.feature-item {
  background: #0d121c;
  border: 1px solid #1f2738;
  border-radius: 6px;
  padding: 14px 18px;
}

.feature-item strong {
  color: var(--accent-cyan);
  display: block;
  margin-bottom: 4px;
  font-size: 14px;
}

.privacy-box {
  background: #0a111a;
  border-left: 4px solid var(--accent-green);
  padding: 16px 20px;
  border-radius: 4px;
  margin-top: 14px;
}

.privacy-box h4 {
  color: var(--accent-green);
  font-size: 15px;
  margin-bottom: 6px;
}

/* Function Cards (Subordinate Pages) */
.func-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 24px;
  transition: border-color 0.2s ease;
}

.func-card:hover {
  border-color: #2f3e58;
}

.func-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.key-badge {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 16px;
  padding: 6px 14px;
  border-radius: 6px;
  background: #182234;
  color: #ffffff;
  border: 1px solid #334466;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
}

.key-badge.cyan {
  border-color: #00e5ff;
  color: #00e5ff;
}

.key-badge.amber {
  border-color: #ff9100;
  color: #ff9100;
}

.key-badge.green {
  border-color: #69f0ae;
  color: #69f0ae;
}

.func-title {
  font-size: 19px;
  font-weight: 700;
  color: #ffffff;
}

.formula-box {
  background: #080c14;
  border: 1px solid #1a2336;
  border-left: 4px solid var(--accent-cyan);
  border-radius: 4px;
  padding: 12px 18px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: #00e5ff;
  margin-bottom: 16px;
  overflow-x: auto;
}

.func-desc {
  font-size: 14.5px;
  color: #d0d7de;
  margin-bottom: 16px;
  line-height: 1.7;
}

.importance-box {
  background: #13171f;
  border-left: 4px solid var(--accent-amber);
  border-radius: 4px;
  padding: 14px 18px;
  margin-bottom: 18px;
}

.importance-box strong {
  color: var(--accent-amber);
  display: block;
  font-size: 13.5px;
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.vars-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  margin-top: 10px;
}

.vars-table th {
  background: #0c1018;
  color: var(--text-muted);
  text-align: left;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-color);
  font-weight: 600;
}

.vars-table td {
  padding: 8px 12px;
  border-bottom: 1px solid #161e2b;
  color: #c9d1d9;
}

.var-code {
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  font-weight: 700;
}

.var-default {
  font-family: var(--font-mono);
  color: var(--accent-green);
}

/* Practical Examples Container */
.examples-container {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 18px;
  border-top: 1px dashed var(--border-color);
  padding-top: 18px;
}

.examples-header {
  font-size: 13px;
  font-weight: 800;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
}

.example-box {
  background: #0d131f;
  border: 1px solid #1e293b;
  border-left: 4px solid #00d2ff;
  border-radius: 6px;
  padding: 16px 20px;
  margin-bottom: 14px;
}

.example-box.alt {
  border-left-color: #ff9100;
}

.example-tag {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 13.5px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.example-context {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 13px;
  color: #cbd5e1;
  line-height: 1.55;
  margin-bottom: 10px;
}

.example-context strong {
  color: #ffffff;
  font-weight: 700;
}

.example-context code {
  background: #1e293b;
  color: #38bdf8;
  padding: 2px 7px;
  border-radius: 4px;
  font-size: 12px;
  border: 1px solid #334155;
  font-family: 'SF Mono', Monaco, Menlo, Consolas, monospace;
}

.example-calc {
  background: #f1f5f9;
  border: 1px solid #cbd5e1;
  border-left: 4px solid #0284c7;
  border-radius: 6px;
  padding: 12px 16px;
  font-family: 'SF Mono', Monaco, Menlo, 'Courier New', monospace;
  font-size: 12.5px;
  color: #0f172a;
  line-height: 1.65;
  margin: 10px 0;
}

.example-calc strong {
  color: #0369a1;
  font-weight: 800;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  text-transform: uppercase;
  font-size: 11.5px;
  letter-spacing: 0.5px;
  display: block;
  margin-bottom: 6px;
}

.example-decision {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 13px;
  color: #fde68a;
  line-height: 1.55;
  margin-top: 10px;
}

.example-decision strong {
  color: #fbbf24;
  font-weight: 700;
}

/* Analytical Report Showcase */
.report-showcase {
  background: #090e18;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 30px;
  text-align: center;
}

.report-preview-img {
  max-width: 100%;
  height: auto;
  border-radius: 6px;
  box-shadow: 0 10px 35px rgba(0, 0, 0, 0.6);
  border: 1px solid #232d42;
  margin: 16px 0;
  background: #ffffff;
}

.report-meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin: 20px 0;
  text-align: left;
}

.report-meta-card {
  background: #111724;
  border: 1px solid #1e283c;
  border-radius: 6px;
  padding: 14px;
}

.report-meta-card strong {
  color: var(--accent-amber);
  display: block;
  font-size: 13px;
  margin-bottom: 4px;
}

/* Page Navigation Footer */
.page-nav-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
  flex-wrap: wrap;
  gap: 14px;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .guide-header {
    padding: 10px 14px;
  }
  .guide-container {
    padding: 16px 12px 60px 12px;
  }
  .hero-card {
    padding: 18px;
  }
  .hero-title {
    font-size: 20px;
  }
  .func-card {
    padding: 16px;
  }
  .formula-box {
    font-size: 12.5px;
  }
}