/* ==========================================================================
   Lewis & Lindquist RVtools - Stylesheet
   Corporate Technical Systems & Independent RV Software Training
   ========================================================================== */

:root {
  --primary-navy: #0f172a;
  --secondary-navy: #1e293b;
  --accent-blue: #2563eb;
  --accent-blue-hover: #1d4ed8;
  --accent-teal: #0d9488;
  --light-bg: #f8fafc;
  --card-bg: #ffffff;
  --border-color: #e2e8f0;
  --border-dark: #334155;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --text-light: #f1f5f9;
  --text-white: #ffffff;
  --notice-bg: #eff6ff;
  --notice-border: #bfdbfe;
  --notice-text: #1e40af;
  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --max-width: 1200px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 10px 25px rgba(15, 23, 42, 0.12);
  --transition: all 0.2s ease-in-out;
}

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

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

body {
  font-family: var(--font-main);
  background-color: var(--light-bg);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Accessibility */
.skip-link {
  position: absolute;
  top: -40px;
  left: 10px;
  background: var(--accent-blue);
  color: #ffffff;
  padding: 8px 16px;
  z-index: 9999;
  text-decoration: none;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: top 0.2s ease;
}
.skip-link:focus {
  top: 10px;
}

:focus-visible {
  outline: 3px solid var(--accent-blue);
  outline-offset: 2px;
}

/* Layout Container */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--primary-navy);
  font-weight: 700;
  line-height: 1.25;
}

h1 { font-size: clamp(2rem, 3.5vw, 2.75rem); letter-spacing: -0.02em; margin-bottom: 1rem; }
h2 { font-size: clamp(1.6rem, 2.8vw, 2.15rem); letter-spacing: -0.015em; margin-bottom: 0.85rem; }
h3 { font-size: 1.35rem; margin-bottom: 0.65rem; }
h4 { font-size: 1.15rem; margin-bottom: 0.5rem; }
p { margin-bottom: 1.2rem; }
p:last-child { margin-bottom: 0; }

a {
  color: var(--accent-blue);
  text-decoration: none;
  transition: var(--transition);
}
a:hover {
  color: var(--accent-blue-hover);
  text-decoration: underline;
}

/* Top Utility Bar */
.top-utility-bar {
  background-color: var(--primary-navy);
  color: var(--text-light);
  font-size: 0.85rem;
  border-bottom: 1px solid var(--border-dark);
  padding: 0.5rem 0;
}
.utility-flex {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.utility-contact-list {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  align-items: center;
}
.utility-contact-list a {
  color: #cbd5e1;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}
.utility-contact-list a:hover {
  color: #ffffff;
  text-decoration: none;
}
.utility-badge {
  background: rgba(37, 99, 235, 0.25);
  border: 1px solid rgba(59, 130, 246, 0.4);
  color: #bfdbfe;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-family: var(--font-mono);
  letter-spacing: 0.03em;
}

/* Header & Navigation */
.site-header {
  background-color: #ffffff;
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}
.nav-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}
.logo-icon {
  background-color: var(--primary-navy);
  color: #ffffff;
  font-weight: 800;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--accent-blue);
}
.logo-text {
  display: flex;
  flex-direction: column;
}
.logo-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--primary-navy);
  line-height: 1.1;
  letter-spacing: -0.01em;
}
.logo-sub {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  font-weight: 600;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav-menu {
  display: flex;
  list-style: none;
  gap: 1.75rem;
  align-items: center;
}
.nav-link {
  color: var(--secondary-navy);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.5rem 0;
  position: relative;
}
.nav-link:hover, .nav-link.active {
  color: var(--accent-blue);
  text-decoration: none;
}
.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--accent-blue);
}

.nav-cta {
  display: inline-block;
  background-color: var(--primary-navy);
  color: #ffffff !important;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--primary-navy);
  transition: var(--transition);
}
.nav-cta:hover {
  background-color: var(--accent-blue);
  border-color: var(--accent-blue);
  text-decoration: none;
}

/* Mobile Nav Toggle */
.mobile-nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-color);
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--primary-navy);
}

/* Disclaimers & Google Ads Compliance Notice */
.disclaimer-banner {
  background-color: #f8fafc;
  border-bottom: 1px solid var(--border-color);
  padding: 0.65rem 0;
  font-size: 0.8rem;
  color: #475569;
}
.disclaimer-banner .disclaimer-inner {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.disclaimer-tag {
  background: #e2e8f0;
  color: #334155;
  font-weight: 700;
  font-size: 0.7rem;
  text-transform: uppercase;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.6rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
}
.btn-primary {
  background-color: var(--accent-blue);
  color: #ffffff;
}
.btn-primary:hover {
  background-color: var(--accent-blue-hover);
  color: #ffffff;
  text-decoration: none;
  box-shadow: var(--shadow-sm);
}
.btn-secondary {
  background-color: #ffffff;
  color: var(--primary-navy);
  border-color: var(--border-color);
}
.btn-secondary:hover {
  background-color: #f1f5f9;
  color: var(--primary-navy);
  text-decoration: none;
  border-color: #cbd5e1;
}
.btn-outline-white {
  background-color: transparent;
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.4);
}
.btn-outline-white:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  border-color: #ffffff;
  text-decoration: none;
}

/* Hero Section */
.hero-technical {
  background-color: #ffffff;
  padding: 4.5rem 0 4rem;
  border-bottom: 1px solid var(--border-color);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
}
.hero-lead {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 1.8rem;
  line-height: 1.65;
}
.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}
.hero-specs-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  border-top: 1px solid var(--border-color);
  padding-top: 1.5rem;
}
.hero-spec-item {
  display: flex;
  flex-direction: column;
}
.hero-spec-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 700;
  letter-spacing: 0.05em;
}
.hero-spec-value {
  font-size: 0.95rem;
  color: var(--primary-navy);
  font-weight: 600;
}

/* Technical Specification Panel */
.tech-spec-panel {
  background: var(--primary-navy);
  color: #ffffff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-dark);
  overflow: hidden;
}
.spec-panel-header {
  background: #090d16;
  padding: 0.85rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-dark);
}
.spec-header-title {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: #94a3b8;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.spec-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10b981;
}
.spec-tabs {
  display: flex;
  background: #131d2e;
  border-bottom: 1px solid var(--border-dark);
}
.spec-tab-btn {
  flex: 1;
  background: none;
  border: none;
  color: #94a3b8;
  padding: 0.75rem 0.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
}
.spec-tab-btn.active {
  color: #ffffff;
  border-bottom-color: var(--accent-blue);
  background: rgba(37, 99, 235, 0.1);
}
.spec-tab-content {
  padding: 1.5rem;
  display: none;
}
.spec-tab-content.active {
  display: block;
}
.spec-row {
  display: flex;
  justify-content: space-between;
  padding: 0.6rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.85rem;
}
.spec-row:last-child {
  border-bottom: none;
}
.spec-k {
  color: #94a3b8;
  font-family: var(--font-mono);
}
.spec-v {
  color: #f8fafc;
  font-weight: 600;
  text-align: right;
}

/* Page Intro Header (Inner Pages) */
.page-intro-header {
  background-color: var(--primary-navy);
  color: #ffffff;
  padding: 3.5rem 0;
  border-bottom: 1px solid var(--border-dark);
}
.page-intro-header h1 {
  color: #ffffff;
  margin-bottom: 0.75rem;
}
.page-intro-lead {
  font-size: 1.15rem;
  color: #cbd5e1;
  max-width: 800px;
}
.breadcrumb-trail {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  margin-bottom: 1rem;
  color: #94a3b8;
}
.breadcrumb-trail a {
  color: #cbd5e1;
}
.breadcrumb-trail a:hover {
  color: #ffffff;
}

/* Section styling */
.section {
  padding: 4.5rem 0;
}
.section-light {
  background-color: #ffffff;
  border-bottom: 1px solid var(--border-color);
}
.section-header {
  margin-bottom: 3rem;
  max-width: 720px;
}
.section-tag {
  display: inline-block;
  color: var(--accent-blue);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}

/* Structured Competency Matrix Table */
.matrix-container {
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: #ffffff;
  box-shadow: var(--shadow-sm);
  margin-top: 1.5rem;
}
.matrix-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}
.matrix-table th {
  background: #f8fafc;
  padding: 1rem 1.25rem;
  font-weight: 700;
  color: var(--primary-navy);
  border-bottom: 2px solid var(--border-color);
  white-space: nowrap;
}
.matrix-table td {
  padding: 1.1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  vertical-align: top;
}
.matrix-table tr:last-child td {
  border-bottom: none;
}
.matrix-table tr:hover td {
  background: #f1f5f9;
}
.module-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  background: #e2e8f0;
  color: #334155;
  margin-bottom: 0.25rem;
}

/* Service Pillar Rows */
.service-pillar-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
.pillar-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2.5rem;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 2.5rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.pillar-card:hover {
  border-color: #cbd5e1;
  box-shadow: var(--shadow-md);
}
.pillar-meta {
  border-right: 1px solid var(--border-color);
  padding-right: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.pillar-id {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-blue);
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.pillar-content h3 {
  color: var(--primary-navy);
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
}
.pillar-scope-list {
  list-style: none;
  margin: 1.25rem 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.6rem;
}
.pillar-scope-list li {
  font-size: 0.9rem;
  color: #334155;
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}
.pillar-scope-list li::before {
  content: "■";
  color: var(--accent-blue);
  font-size: 0.65rem;
}

/* Callout Box */
.notice-callout {
  background: var(--notice-bg);
  border-left: 4px solid var(--accent-blue);
  padding: 1.5rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 2rem 0;
}
.notice-callout h4 {
  color: var(--notice-text);
  margin-bottom: 0.4rem;
}
.notice-callout p {
  color: #1e3a8a;
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* Forms */
.form-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}
.form-group {
  display: flex;
  flex-direction: column;
  margin-bottom: 1.25rem;
}
.form-group.full-width {
  grid-column: 1 / -1;
}
.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary-navy);
  margin-bottom: 0.4rem;
}
.form-label .required {
  color: #dc2626;
}
.form-control {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--text-main);
  background-color: #ffffff;
  transition: var(--transition);
}
.form-control:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
  outline: none;
}
textarea.form-control {
  min-height: 120px;
  resize: vertical;
}
.form-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.35rem;
}
.form-status {
  padding: 1rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.25rem;
  display: none;
  font-size: 0.9rem;
}
.form-status.success {
  display: block;
  background: #dcfce7;
  border: 1px solid #86efac;
  color: #166534;
}
.form-status.error {
  display: block;
  background: #fee2e2;
  border: 1px solid #fca5a5;
  color: #991b1b;
}

/* Contact Info Grid */
.contact-info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}
.info-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
}
.info-card-header {
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}
.info-card-value {
  font-size: 1.1rem;
  color: var(--primary-navy);
  font-weight: 600;
}

/* Footer */
.site-footer {
  background-color: var(--primary-navy);
  color: #94a3b8;
  padding: 4rem 0 2rem;
  margin-top: auto;
  border-top: 1px solid var(--border-dark);
  font-size: 0.9rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}
.footer-col h4 {
  color: #ffffff;
  font-size: 1rem;
  margin-bottom: 1.2rem;
  letter-spacing: -0.01em;
}
.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.footer-links a {
  color: #cbd5e1;
}
.footer-links a:hover {
  color: #ffffff;
}
.footer-address-item {
  margin-bottom: 0.75rem;
  line-height: 1.5;
  color: #cbd5e1;
}
.footer-bottom {
  border-top: 1px solid var(--border-dark);
  padding-top: 1.75rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
}
.footer-disclaimer-text {
  font-size: 0.8rem;
  color: #64748b;
  margin-top: 0.75rem;
  line-height: 1.5;
}

/* Responsive Media Queries */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .pillar-card {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .pillar-meta {
    border-right: none;
    border-bottom: 1px solid var(--border-color);
    padding-right: 0;
    padding-bottom: 1.5rem;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .contact-info-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .utility-flex {
    flex-direction: column;
    align-items: flex-start;
  }
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: #ffffff;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    padding: 1.5rem;
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
  }
  .main-nav.is-open {
    display: flex;
  }
  .nav-menu {
    flex-direction: column;
    width: 100%;
    align-items: flex-start;
    gap: 0.85rem;
  }
  .mobile-nav-toggle {
    display: block;
  }
  .hero-specs-list {
    grid-template-columns: 1fr;
  }
  .pillar-scope-list {
    grid-template-columns: 1fr;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}