/* ═══════════════════════════════════════════════════════════
   VTG Design System — styles.css
   Valley Technologies Group
   ═══════════════════════════════════════════════════════════ */

/* ── CSS Custom Properties ── */
:root {
  --vtg-blue:            #3B7DBF;
  --vtg-blue-dark:       #2C5F8F;
  --vtg-blue-light:      #5A9BD5;
  --vtg-blue-bg:         rgba(59,125,191,0.08);

  --vtg-copper:          #C47832;
  --vtg-copper-dark:     #A5632A;
  --vtg-copper-light:    #D4944F;
  --vtg-copper-bg:       rgba(196,120,50,0.08);

  --surface-primary:     #F8F9FA;
  --surface-secondary:   #EEF0F2;
  --surface-white:       #FFFFFF;
  --surface-dark:        #1B2A3B;
  --surface-dark-card:   #243547;

  --text-primary:        #1A2332;
  --text-secondary:      #5A6675;
  --text-muted:          #8A94A0;
  --text-on-dark:        #ECF0F4;
  --text-on-dark-muted:  #8A94A0;

  --success:             #3D8B5E;
  --warning:             #C49A32;
  --error:               #B5453A;

  --shadow-xs:           0 1px 2px rgba(26,35,50,0.06);
  --shadow-sm:           0 2px 4px rgba(26,35,50,0.08);
  --shadow-md:           0 4px 12px rgba(26,35,50,0.10);
  --shadow-lg:           0 8px 24px rgba(26,35,50,0.12);
  --shadow-xl:           0 16px 48px rgba(26,35,50,0.16);

  --radius-sm:           8px;
  --radius-md:           12px;
  --radius-lg:           16px;
  --radius-xl:           24px;
  --radius-full:         9999px;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-primary);
  background: var(--surface-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--vtg-blue); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--vtg-blue-dark); }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea, select { font-family: inherit; font-size: inherit; }

/* ── Skip Nav ── */
.skip-nav {
  position: absolute;
  top: -100%;
  left: 16px;
  background: var(--vtg-blue);
  color: #fff;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  z-index: 10000;
  font-weight: 600;
  transition: top 0.2s;
}
.skip-nav:focus { top: 16px; }

/* ── Typography ── */
h1, h2 {
  font-family: Georgia, 'Times New Roman', serif;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}
h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
h3 { font-weight: 700; font-size: 1.25rem; line-height: 1.3; }
h4 { font-weight: 700; font-size: 1rem; }
p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

/* ── Layout ── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
section { padding: 96px 0; }
section:first-of-type { padding-top: 0; }

.section-header {
  text-align: center;
  margin-bottom: 56px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}
.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--vtg-blue);
  margin-bottom: 12px;
}
.section-label i { margin-right: 6px; }
.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-top: 16px;
  line-height: 1.7;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.3s ease;
  text-decoration: none;
  border: 2px solid transparent;
}
.btn-primary {
  background: linear-gradient(135deg, var(--vtg-blue), var(--vtg-blue-dark));
  color: #fff;
  box-shadow: 0 4px 16px rgba(59,125,191,0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(59,125,191,0.4);
  color: #fff;
}
.btn-secondary {
  background: var(--surface-white);
  color: var(--text-primary);
  border-color: rgba(26,35,50,0.15);
}
.btn-secondary:hover {
  border-color: var(--vtg-blue);
  color: var(--vtg-blue);
  transform: translateY(-2px);
}
.btn-dark {
  background: var(--surface-dark);
  color: var(--text-on-dark);
}
.btn-dark:hover {
  background: #243547;
  color: #fff;
  transform: translateY(-2px);
}
.btn-outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.3);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: #fff;
  color: #fff;
}
.btn-sm {
  padding: 10px 24px;
  font-size: 0.875rem;
}
.btn i { font-size: 0.85em; }

/* ── Header ── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(248,249,250,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: box-shadow 0.3s;
  border-bottom: 1px solid rgba(26,35,50,0.06);
}
.site-header.scrolled {
  box-shadow: var(--shadow-md);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 24px;
}
.header-logo img { height: 60px; width: auto; image-rendering: -webkit-optimize-contrast; }
.header-logo { display: flex; align-items: center; }

/* Desktop Nav */
.header-nav { display: flex; align-items: center; gap: 4px; }
.nav-link,
.nav-dropdown-toggle {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 8px 14px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all 0.2s;
  text-decoration: none;
  white-space: nowrap;
}
.nav-link:hover,
.nav-dropdown-toggle:hover,
.nav-link.active,
.nav-dropdown-toggle.active {
  color: var(--vtg-blue);
  background: var(--vtg-blue-bg);
}
.nav-dropdown-toggle .fa-chevron-down {
  font-size: 0.6em;
  transition: transform 0.2s;
}
.nav-dropdown.open .nav-dropdown-toggle .fa-chevron-down {
  transform: rotate(180deg);
}

/* Dropdown Menu */
.nav-dropdown { position: relative; }
.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 240px;
  background: var(--surface-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(26,35,50,0.08);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s ease;
  z-index: 100;
}
.nav-dropdown.open .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.nav-dropdown-menu a {
  display: block;
  padding: 10px 16px;
  font-size: 0.875rem;
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  transition: all 0.15s;
}
.nav-dropdown-menu a:hover {
  background: var(--vtg-blue-bg);
  color: var(--vtg-blue);
}

.header-cta { margin-left: 16px; }

/* Mobile Toggle */
.mobile-nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
  background: none;
  border: none;
}
.mobile-nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s;
}

/* ── Mobile Nav Overlay ── */
.mobile-nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(27,42,59,0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
  overflow-y: auto;
}
.mobile-nav-overlay.active {
  opacity: 1;
  visibility: visible;
}
.mobile-nav-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 40px;
}
.mobile-nav-close {
  color: var(--text-on-dark);
  font-size: 1.5rem;
  padding: 8px;
  cursor: pointer;
  background: none;
  border: none;
}
.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.mobile-nav-links > a {
  display: block;
  padding: 14px 0;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-on-dark);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  text-decoration: none;
}
.mobile-nav-links > a:hover { color: var(--vtg-blue-light); }

.mobile-nav-dropdown { border-bottom: 1px solid rgba(255,255,255,0.08); }
.mobile-nav-dropdown-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 14px 0;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-on-dark);
  background: none;
  border: none;
  cursor: pointer;
  text-decoration: none;
}
.mobile-nav-dropdown-toggle i {
  font-size: 0.7em;
  transition: transform 0.3s;
}
.mobile-nav-dropdown.open .mobile-nav-dropdown-toggle i {
  transform: rotate(180deg);
}
.mobile-nav-dropdown-menu {
  display: none;
  padding: 0 0 12px 16px;
}
.mobile-nav-dropdown.open .mobile-nav-dropdown-menu { display: block; }
.mobile-nav-dropdown-menu a {
  display: block;
  padding: 10px 0;
  font-size: 0.95rem;
  color: var(--text-on-dark-muted);
  text-decoration: none;
}
.mobile-nav-dropdown-menu a:hover { color: var(--vtg-blue-light); }
.mobile-nav-cta { margin-top: 32px; }
.mobile-nav-cta .btn { width: 100%; justify-content: center; }

body.nav-open { overflow: hidden; }

/* ── Hero Section ── */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 72px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(27,42,59,0.82) 0%,
    rgba(27,42,59,0.65) 50%,
    rgba(27,42,59,0.50) 100%
  );
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
  padding: 80px 0;
}
.hero .section-label { color: var(--vtg-copper-light); }
.hero h1 { color: #fff; margin-bottom: 20px; }
.hero .hero-subtitle {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.85);
  line-height: 1.7;
  margin-bottom: 32px;
}
.hero-ctas {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Stats Row */
.stats-row {
  display: flex;
  gap: 48px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.15);
}
.stat-item { text-align: left; }
.stat-value {
  font-family: Georgia, serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: #fff;
  line-height: 1;
}
.stat-label {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.6);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 4px;
}

/* Subpage Hero (shorter) */
.hero-sub { min-height: 50vh; }
.hero-sub .hero-content { padding: 60px 0 40px; }

/* ── Card Patterns ── */
.card {
  background: var(--surface-white);
  border: 1px solid rgba(26,35,50,0.06);
  border-radius: var(--radius-lg);
  padding: 40px;
  transition: all 0.3s ease;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.card-icon {
  width: 56px;
  height: 56px;
  background: var(--vtg-blue-bg);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--vtg-blue);
  margin-bottom: 20px;
}
.card-icon.copper {
  background: var(--vtg-copper-bg);
  color: var(--vtg-copper);
}
.card h3 { margin-bottom: 12px; }
.card p { color: var(--text-secondary); font-size: 0.95rem; }
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--vtg-blue);
}
.card-link:hover { gap: 10px; }
.card-link i { font-size: 0.75em; transition: transform 0.2s; }
.card-link:hover i { transform: translateX(4px); }

/* Grid layouts */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

/* ── Case Study Cards ── */
.case-study-card {
  background: var(--surface-white);
  border: 1px solid rgba(26,35,50,0.06);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.3s ease;
}
.case-study-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.case-study-card-img {
  height: 200px;
  background-size: cover;
  background-position: center;
}
.case-study-card-body { padding: 32px; }
.case-study-card-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.tag {
  display: inline-block;
  padding: 4px 12px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
  background: var(--vtg-blue-bg);
  color: var(--vtg-blue);
}
.tag.copper {
  background: var(--vtg-copper-bg);
  color: var(--vtg-copper);
}

/* ── Dark Section ── */
.section-dark {
  background: var(--surface-dark);
  color: var(--text-on-dark);
}
.section-dark h2 { color: #fff; }
.section-dark .section-label { color: var(--vtg-copper-light); }
.section-dark .section-subtitle { color: var(--text-on-dark-muted); }
.section-dark .card {
  background: var(--surface-dark-card);
  border-color: rgba(255,255,255,0.06);
}
.section-dark .card h3 { color: #fff; }
.section-dark .card p { color: var(--text-on-dark-muted); }

/* ── Quote ── */
.blockquote {
  font-family: Georgia, serif;
  font-size: 1.3rem;
  font-style: italic;
  line-height: 1.6;
  color: rgba(255,255,255,0.9);
  max-width: 640px;
  margin: 0 auto 48px;
  text-align: center;
  position: relative;
}
.blockquote::before {
  content: '\201C';
  font-size: 4rem;
  color: var(--vtg-copper-light);
  position: absolute;
  top: -24px;
  left: -16px;
  line-height: 1;
}

/* ── CTA Section ── */
.cta-section {
  background: linear-gradient(135deg, var(--vtg-blue) 0%, var(--vtg-blue-dark) 100%);
  color: #fff;
  text-align: center;
  padding: 80px 0;
}
.cta-section h2 { color: #fff; margin-bottom: 16px; }
.cta-section .section-subtitle { color: rgba(255,255,255,0.85); margin-bottom: 32px; }
.cta-section .cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.cta-section-light {
  background: var(--surface-secondary);
  text-align: center;
  padding: 80px 0;
}
.cta-section-light h2 { margin-bottom: 16px; }
.cta-section-light .section-subtitle { margin-bottom: 32px; }

/* ── Feature Grid ── */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}
.feature-item { display: flex; gap: 16px; }
.feature-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  background: var(--vtg-blue-bg);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--vtg-blue);
  font-size: 1.1rem;
}
.feature-content h3 { font-size: 1.1rem; margin-bottom: 8px; }
.feature-content p { color: var(--text-secondary); font-size: 0.9rem; }

/* ── Process Steps ── */
.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
  counter-reset: step;
}
.process-step {
  counter-increment: step;
}
.process-step::before {
  content: counter(step);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--vtg-blue);
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 16px;
}
.process-step h3 { font-size: 1rem; margin-bottom: 8px; }
.process-step p { color: var(--text-secondary); font-size: 0.9rem; }

/* ── Engagement Models ── */
.engagement-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.engagement-card {
  background: var(--surface-white);
  border: 1px solid rgba(26,35,50,0.06);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  transition: all 0.3s ease;
}
.engagement-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.engagement-card h3 { margin-bottom: 8px; }
.engagement-card .duration {
  font-size: 0.85rem;
  color: var(--vtg-blue);
  font-weight: 600;
  margin-bottom: 12px;
}
.engagement-card p { color: var(--text-secondary); font-size: 0.9rem; }

/* ── Technology Grid ── */
.tech-category { margin-bottom: 40px; }
.tech-category:last-child { margin-bottom: 0; }
.tech-category h3 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(26,35,50,0.08);
}
.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tech-tag {
  padding: 8px 16px;
  background: var(--surface-white);
  border: 1px solid rgba(26,35,50,0.08);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-primary);
  transition: all 0.2s;
}
.tech-tag:hover {
  border-color: var(--vtg-blue);
  color: var(--vtg-blue);
  background: var(--vtg-blue-bg);
}

/* ── FAQ Accordion ── */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid rgba(26,35,50,0.08); }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 20px 0;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
}
.faq-question i {
  font-size: 0.75em;
  color: var(--text-muted);
  transition: transform 0.3s;
  flex-shrink: 0;
  margin-left: 16px;
}
.faq-item.open .faq-question i { transform: rotate(180deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}
.faq-item.open .faq-answer {
  max-height: 500px;
  padding-bottom: 20px;
}
.faq-answer p { color: var(--text-secondary); }

/* ── Contact Form ── */
.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 64px;
  align-items: start;
}
.contact-form { width: 100%; }
.form-group { margin-bottom: 24px; }
.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid rgba(26,35,50,0.15);
  border-radius: var(--radius-sm);
  background: var(--surface-white);
  color: var(--text-primary);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--vtg-blue);
  box-shadow: 0 0 0 3px var(--vtg-blue-bg);
}
.form-group textarea { min-height: 140px; resize: vertical; }

.form-success {
  text-align: center;
  padding: 48px 24px;
}
.form-success i { font-size: 3rem; color: var(--success); margin-bottom: 16px; }
.form-success h3 { margin-bottom: 8px; }
.form-success p { color: var(--text-secondary); }

/* Contact sidebar */
.contact-info-item {
  display: flex;
  gap: 16px;
  margin-bottom: 28px;
}
.contact-info-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  background: var(--vtg-blue-bg);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--vtg-blue);
}
.contact-info-text h4 { margin-bottom: 4px; }
.contact-info-text p { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 0; }
.contact-info-text a { color: var(--vtg-blue); }
.contact-social {
  display: flex;
  gap: 12px;
  margin-top: 32px;
}
.contact-social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--surface-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all 0.2s;
}
.contact-social a:hover {
  background: var(--vtg-blue);
  color: #fff;
}

/* ── Insights / Article Cards ── */
.article-card {
  background: var(--surface-white);
  border: 1px solid rgba(26,35,50,0.06);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.3s ease;
}
.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.article-card-img {
  height: 180px;
  background-size: cover;
  background-position: center;
}
.article-card-body { padding: 24px; }
.article-card-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.article-card-body h3 { margin-bottom: 8px; font-size: 1.1rem; }
.article-card-body p { font-size: 0.9rem; color: var(--text-secondary); }

.category-filter {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 40px;
  justify-content: center;
}
.category-btn {
  padding: 8px 20px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--surface-white);
  border: 1px solid rgba(26,35,50,0.1);
  cursor: pointer;
  transition: all 0.2s;
}
.category-btn:hover,
.category-btn.active {
  background: var(--vtg-blue);
  color: #fff;
  border-color: var(--vtg-blue);
}

/* ── Beliefs / Values ── */
.beliefs-list { max-width: 700px; }
.belief-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 16px 0;
  border-bottom: 1px solid rgba(26,35,50,0.06);
}
.belief-item:last-child { border-bottom: none; }
.belief-icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  background: var(--vtg-blue-bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--vtg-blue);
  font-size: 0.8rem;
  margin-top: 2px;
}
.belief-item p { color: var(--text-secondary); font-size: 0.95rem; margin: 0; }

/* ── Product Card ── */
.product-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  background: var(--surface-white);
  border: 1px solid rgba(26,35,50,0.06);
  border-radius: var(--radius-lg);
  padding: 48px;
}
.product-card-content h3 { font-size: 1.3rem; margin-bottom: 12px; }
.product-card-content p { color: var(--text-secondary); }
.product-card-image {
  display: flex;
  align-items: center;
  justify-content: center;
}
.product-card-image img {
  max-width: 200px;
  border-radius: var(--radius-lg);
}

/* Privacy Tiers */
.privacy-tiers {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.privacy-tier {
  background: var(--surface-white);
  border: 1px solid rgba(26,35,50,0.06);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  transition: all 0.3s;
}
.privacy-tier:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.privacy-tier.featured {
  border-color: var(--vtg-blue);
  box-shadow: var(--shadow-md);
}
.privacy-tier h3 { margin-bottom: 8px; }
.privacy-tier p { color: var(--text-secondary); font-size: 0.9rem; }
.privacy-tier .badge {
  display: inline-block;
  padding: 4px 12px;
  background: var(--vtg-blue-bg);
  color: var(--vtg-blue);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 12px;
}

/* ── About / Story ── */
.story-content { max-width: 720px; }
.story-content p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}
.about-sublinks {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 32px;
}

/* ── Leadership ── */
.leader-card {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 40px;
  align-items: start;
  background: var(--surface-white);
  border: 1px solid rgba(26,35,50,0.06);
  border-radius: var(--radius-lg);
  padding: 40px;
}
.leader-photo {
  width: 200px;
  height: 200px;
  border-radius: var(--radius-lg);
  background: var(--surface-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 3rem;
}
.leader-info h3 { font-size: 1.3rem; margin-bottom: 4px; }
.leader-info .leader-title {
  color: var(--vtg-blue);
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 16px;
}
.leader-info p { color: var(--text-secondary); }

/* ── Legal Pages ── */
.legal-content {
  max-width: 800px;
  margin: 0 auto;
}
.legal-content h2 {
  font-size: 1.5rem;
  margin-top: 40px;
  margin-bottom: 16px;
}
.legal-content h3 {
  margin-top: 32px;
  margin-bottom: 12px;
}
.legal-content p,
.legal-content li {
  color: var(--text-secondary);
  font-size: 0.95rem;
}
.legal-content ul {
  list-style: disc;
  padding-left: 24px;
  margin-bottom: 16px;
}
.legal-content li { margin-bottom: 8px; }
.legal-date {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 32px;
}

/* ── Footer ── */
.site-footer {
  background: var(--surface-dark);
  color: var(--text-on-dark);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand p {
  color: var(--text-on-dark-muted);
  font-size: 0.9rem;
  margin-top: 16px;
}
.footer-brand img { height: 120px; margin-bottom: 8px; }
.footer-column h4 {
  color: #fff;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 20px;
}
.footer-column a {
  display: block;
  color: var(--text-on-dark-muted);
  font-size: 0.875rem;
  padding: 4px 0;
  transition: color 0.2s;
}
.footer-column a:hover { color: var(--vtg-blue-light); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-on-dark-muted);
}
.footer-social {
  display: flex;
  gap: 16px;
}
.footer-social a {
  color: var(--text-on-dark-muted);
  font-size: 1.1rem;
  transition: color 0.2s;
}
.footer-social a:hover { color: var(--vtg-blue-light); }

/* ── Scroll Animations ── */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}
.grid-3 > .fade-up:nth-child(2),
.grid-4 > .fade-up:nth-child(2),
.grid-2 > .fade-up:nth-child(2) { transition-delay: 0.1s; }
.grid-3 > .fade-up:nth-child(3),
.grid-4 > .fade-up:nth-child(3),
.grid-2 > .fade-up:nth-child(3) { transition-delay: 0.2s; }
.grid-4 > .fade-up:nth-child(4) { transition-delay: 0.3s; }

/* Alternating backgrounds */
.section-alt { background: var(--surface-secondary); }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .product-card { grid-template-columns: 1fr; }
  .privacy-tiers { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
  .leader-card { grid-template-columns: 1fr; }
  .leader-photo { margin: 0 auto; }
  .engagement-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
}

@media (max-width: 768px) {
  .header-nav { display: none; }
  .header-cta { display: none; }
  .mobile-nav-toggle { display: flex; }

  section { padding: 64px 0; }
  .container { padding: 0 20px; }

  .hero { min-height: 80vh; }
  .hero-sub { min-height: 45vh; }
  .hero-content { padding: 48px 0; }
  .hero-ctas { flex-direction: column; }
  .hero-ctas .btn { width: 100%; justify-content: center; }
  .stats-row { flex-direction: column; gap: 24px; }

  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }

  .section-header { margin-bottom: 40px; }
  .card { padding: 28px; }
}

/* ── Focus Styles ── */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--vtg-blue);
  outline-offset: 2px;
}

/* ── Print ── */
@media print {
  .site-header, .site-footer, .mobile-nav-overlay, .cta-section { display: none; }
  .hero { min-height: auto; padding: 24px 0; }
  body { color: #000; background: #fff; }
}