/* XAVIER MECH LLC - Sophisticated Dark Engineering & Industrial Theme */
@import url('https://fonts.googleapis.com/css2?family=Cinzel:ital,wght@1,400;1,600&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

:root {
  --bg-dark: #0A0A0B;
  --bg-surface: #0F0F11;
  --bg-card: #121214;
  --bg-card-hover: #17171A;
  --bg-accent-box: #0D0D0E;
  --text-main: #E2E8F0;
  --text-muted: #94A3B8;
  --text-dim: #64748B;
  --gold-primary: #D97706;
  --gold-light: #F59E0B;
  --gold-glow: rgba(245, 158, 11, 0.18);
  --silver-steel: #CBD5E1;
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-amber: rgba(245, 158, 11, 0.25);
  --border-strong: #F59E0B;
  --shadow-premium: 0 20px 50px -10px rgba(0, 0, 0, 0.85);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --font-main: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-serif: 'Cinzel', serif;
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-main);
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
}

body {
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Serif Accent helper */
.font-serif {
  font-family: var(--font-serif);
}

.italic {
  font-style: italic;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -100px;
  left: 20px;
  background: var(--gold-light);
  color: #000;
  padding: 10px 16px;
  font-weight: 700;
  z-index: 9999;
  border-radius: var(--radius-sm);
  transition: top 0.2s;
}

.skip-link:focus {
  top: 20px;
}

/* Page Loader Safety */
#page-loader {
  position: fixed;
  inset: 0;
  background: var(--bg-dark);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}

.loader-spinner {
  width: 52px;
  height: 52px;
  border: 3px solid rgba(245, 158, 11, 0.15);
  border-top-color: var(--gold-light);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.loader-text {
  margin-top: 18px;
  font-size: 0.8rem;
  letter-spacing: 0.25em;
  color: var(--gold-light);
  text-transform: uppercase;
  font-weight: 700;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

#page-loader.fade-out {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* Typography */
h1, h2, h3, h4 {
  color: #FFFFFF;
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.02em;
}

a {
  color: var(--gold-light);
  text-decoration: none;
  transition: all 0.2s ease;
}

a:hover {
  color: #FDE047;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  border: none;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  text-align: center;
}

.btn-primary {
  background: var(--gold-light);
  color: #000000;
  box-shadow: 0 4px 20px var(--gold-glow);
}

.btn-primary:hover {
  background: #FBBF24;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(245, 158, 11, 0.35);
  color: #000000;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-main);
  border: 1px solid var(--border-subtle);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--border-amber);
  color: var(--gold-light);
  transform: translateY(-2px);
}

/* Header & Nav */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(15, 15, 17, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: background 0.3s ease;
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-logo img {
  width: 42px;
  height: 42px;
  object-fit: contain;
  border-radius: 4px;
}

.brand-name {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: #FFFFFF;
  text-transform: uppercase;
}

.brand-name span {
  color: var(--gold-light);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-link {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 0.2s;
  position: relative;
  padding: 4px 0;
}

.nav-link:hover, .nav-link.active {
  color: #FFFFFF;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--gold-light);
  transition: width 0.25s ease;
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.mobile-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

/* Hero Section */
.hero-section {
  position: relative;
  padding: 80px 0 90px;
  background: radial-gradient(circle at 80% 20%, rgba(245, 158, 11, 0.08) 0%, transparent 50%),
              linear-gradient(180deg, var(--bg-surface) 0%, var(--bg-dark) 100%);
  border-bottom: 1px solid var(--border-subtle);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px;
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid var(--border-amber);
  border-radius: var(--radius-sm);
  color: var(--gold-light);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.hero-title {
  font-size: clamp(2.4rem, 4.8vw, 3.6rem);
  font-weight: 300;
  margin-bottom: 20px;
  color: #FFFFFF;
  letter-spacing: -0.03em;
}

.hero-title span.highlight {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--gold-light);
  font-weight: 400;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 32px;
  max-width: 560px;
  line-height: 1.7;
}

.hero-cta-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.hero-stats {
  display: flex;
  gap: 32px;
  border-top: 1px solid var(--border-subtle);
  padding-top: 24px;
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--gold-light);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.hero-image-wrapper {
  position: relative;
  border-radius: var(--radius-md);
  padding: 8px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-premium);
}

.hero-image-wrapper img {
  width: 100%;
  height: 460px;
  object-fit: cover;
  border-radius: calc(var(--radius-md) - 4px);
  display: block;
}

/* Sections */
.section-padding {
  padding: 88px 0;
}

.section-title-wrap {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 52px;
}

.section-subtitle {
  color: var(--gold-light);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 12px;
  display: block;
}

.section-title {
  font-size: clamp(1.8rem, 3.2vw, 2.5rem);
  margin-bottom: 14px;
}

.section-desc {
  color: var(--text-muted);
  font-size: 1.02rem;
}

/* Services Grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-amber);
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-premium);
}

.service-card-img {
  width: 100%;
  height: 210px;
  object-fit: cover;
  display: block;
}

.service-card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.service-card-title {
  font-size: 1.25rem;
  margin-bottom: 10px;
  color: #FFFFFF;
}

.service-card-text {
  color: var(--text-muted);
  font-size: 0.94rem;
  margin-bottom: 20px;
  flex-grow: 1;
  line-height: 1.65;
}

.service-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.tag {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 4px 8px;
  border-radius: 2px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* About & Features Split */
.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.split-image-wrap {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
}

.split-image-wrap img {
  width: 100%;
  height: 440px;
  object-fit: cover;
  display: block;
}

.feature-list {
  list-style: none;
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-size: 1rem;
  color: var(--text-muted);
}

.feature-icon {
  width: 22px;
  height: 22px;
  color: var(--gold-light);
  flex-shrink: 0;
  margin-top: 2px;
}

/* Why Choose Us Grid */
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.why-card {
  background: var(--bg-card);
  padding: 28px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  transition: all 0.3s ease;
}

.why-card:hover {
  border-color: var(--border-amber);
  background: var(--bg-card-hover);
}

.why-icon-box {
  width: 48px;
  height: 48px;
  background: rgba(245, 158, 11, 0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold-light);
  margin-bottom: 18px;
  border: 1px solid var(--border-amber);
}

.why-title {
  font-size: 1.15rem;
  margin-bottom: 8px;
  color: #FFFFFF;
}

/* Contact & Service Request Form */
.contact-section {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
}

.form-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-premium);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-main);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.form-control {
  background: #0D0D0E;
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.94rem;
  font-family: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus {
  outline: none;
  border-color: var(--gold-light);
  box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.25);
}

textarea.form-control {
  resize: vertical;
  min-height: 110px;
}

.form-checkbox-group {
  grid-column: 1 / -1;
  background: rgba(0, 0, 0, 0.3);
  padding: 20px;
  border-radius: var(--radius-sm);
  border: 1px dashed var(--border-amber);
  margin-top: 8px;
}

.checkbox-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--gold-light);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}

.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 12px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
  cursor: pointer;
}

/* Privacy Policy Layout */
.privacy-page-wrap {
  padding: 60px 0 100px;
}

.privacy-layout {
  display: block;
  max-width: 900px;
  margin: 0 auto;
}

.privacy-toc-sidebar {
  position: sticky;
  top: 92px;
  align-self: start;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
}

.toc-title {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--gold-light);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-subtle);
}

.toc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toc-link {
  font-size: 0.82rem;
  color: var(--text-muted);
  display: block;
  line-height: 1.4;
}

.toc-link:hover, .toc-link.active {
  color: var(--gold-light);
  font-weight: 700;
}

.policy-article {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 44px;
  box-shadow: var(--shadow-premium);
  color: #E2E8F0;
}

.policy-header {
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 24px;
  margin-bottom: 32px;
}

.policy-header h1 {
  font-size: 2rem;
  margin-bottom: 8px;
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  color: #FFFFFF;
}

.policy-meta {
  color: var(--gold-light);
  font-weight: 600;
  font-size: 0.88rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.policy-section {
  margin-bottom: 32px;
  scroll-margin-top: 100px;
}

.policy-section h2 {
  font-size: 1.15rem;
  color: #FFFFFF;
  margin-bottom: 14px;
  border-left: 3px solid var(--gold-light);
  padding-left: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.policy-section p {
  margin-bottom: 14px;
  color: var(--text-muted);
  font-size: 0.96rem;
  line-height: 1.7;
  word-break: break-word;
}

.policy-section ul {
  margin: 12px 0 16px 20px;
  color: var(--text-muted);
}

.policy-section li {
  margin-bottom: 8px;
  font-size: 0.94rem;
}

.privacy-contact-card {
  background: rgba(245, 158, 11, 0.05);
  border: 1px solid var(--border-amber);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-top: 20px;
}

/* Footer */
.site-footer {
  background: #080809;
  border-top: 1px solid var(--border-subtle);
  padding: 56px 0 28px;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: 48px;
  margin-bottom: 44px;
}

.footer-brand p {
  color: var(--text-muted);
  margin-top: 14px;
  max-width: 360px;
  font-size: 0.92rem;
  line-height: 1.6;
}

.footer-heading {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--gold-light);
  margin-bottom: 18px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.88rem;
}

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

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-dim);
  font-size: 0.82rem;
  flex-wrap: wrap;
  gap: 16px;
}

/* Scroll to Top */
.scroll-top-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  background: var(--gold-light);
  color: #000;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(0,0,0,0.6);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 900;
}

.scroll-top-btn.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top-btn:hover {
  transform: translateY(-3px);
  background: #FBBF24;
}

/* Responsive Media Queries */
@media (max-width: 992px) {
  .hero-grid, .split-grid, .privacy-layout {
    grid-template-columns: 1fr;
  }
  .privacy-toc-sidebar {
    position: static;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .mobile-toggle {
    display: flex;
  }
  .nav-links {
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: var(--bg-surface);
    flex-direction: column;
    padding: 24px;
    gap: 18px;
    border-bottom: 1px solid var(--border-subtle);
    display: none;
  }
  .nav-links.open {
    display: flex;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
  .policy-article {
    padding: 24px;
  }
}

/* Accessibility Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, ::before, ::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}