/* ============================================================
   VetCare Pro Documentation Site - Ultra Premium Design System
   v2.0 - Complete Redesign with Premium Animations & Effects
   ============================================================ */

/* --- CSS Variables --- */
:root {
  --vc-primary: #2563eb;
  --vc-primary-light: #3b82f6;
  --vc-primary-dark: #1d4ed8;
  --vc-primary-50: #eff6ff;
  --vc-primary-100: #dbeafe;
  --vc-violet: #7c3aed;
  --vc-violet-light: #8b5cf6;
  --vc-fuchsia: #d946ef;
  --vc-success: #10b981;
  --vc-success-50: #ecfdf5;
  --vc-warning: #f59e0b;
  --vc-warning-50: #fffbeb;
  --vc-danger: #ef4444;
  --vc-danger-50: #fef2f2;
  --vc-gray-50: #f8fafc;
  --vc-gray-100: #f1f5f9;
  --vc-gray-200: #e2e8f0;
  --vc-gray-300: #cbd5e1;
  --vc-gray-400: #94a3b8;
  --vc-gray-500: #64748b;
  --vc-gray-600: #475569;
  --vc-gray-700: #334155;
  --vc-gray-800: #1e293b;
  --vc-gray-900: #0f172a;
  --vc-radius: 16px;
  --vc-radius-sm: 10px;
  --vc-radius-lg: 24px;
  --vc-radius-xl: 32px;
  --vc-shadow: 0 4px 24px rgba(0,0,0,0.06);
  --vc-shadow-lg: 0 20px 60px rgba(0,0,0,0.10);
  --vc-shadow-xl: 0 30px 80px rgba(0,0,0,0.14);
  --vc-shadow-glow: 0 0 40px rgba(37,99,235,0.15);
  --vc-font: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --vc-font-code: 'Fira Code', 'JetBrains Mono', 'Source Code Pro', monospace;
  --vc-gradient: linear-gradient(135deg, #1e3a8a 0%, #5b21b6 40%, #7c3aed 70%, #a855f7 100%);
  --vc-gradient-blue: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
  --vc-gradient-success: linear-gradient(135deg, #10b981 0%, #059669 100%);
  --vc-gradient-warm: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
  --vc-gradient-mesh: radial-gradient(at 20% 80%, rgba(37,99,235,0.15) 0%, transparent 50%), radial-gradient(at 80% 20%, rgba(124,58,237,0.12) 0%, transparent 50%), radial-gradient(at 50% 50%, rgba(168,85,247,0.08) 0%, transparent 50%);
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  font-family: var(--vc-font);
  color: var(--vc-gray-800);
  background: #fff;
  line-height: 1.85;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
a { color: var(--vc-primary); text-decoration: none; transition: all 0.25s ease; }
a:hover { color: var(--vc-primary-dark); }
img { max-width: 100%; height: auto; }
code {
  font-family: var(--vc-font-code);
  background: var(--vc-gray-100);
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 0.85em;
  color: var(--vc-violet);
  border: 1px solid var(--vc-gray-200);
}
pre {
  background: var(--vc-gray-900);
  color: #e2e8f0;
  border-radius: var(--vc-radius);
  padding: 24px;
  overflow-x: auto;
  font-family: var(--vc-font-code);
  font-size: 0.86rem;
  line-height: 1.75;
  margin: 16px 0;
  border: 1px solid var(--vc-gray-700);
  position: relative;
}
pre code { background: none; border: none; padding: 0; color: inherit; font-size: inherit; }
.code-comment { color: #6b7280; }
.code-keyword { color: #c084fc; }
.code-string { color: #34d399; }
.code-func { color: #60a5fa; }
.code-var { color: #fbbf24; }
.code-tag { color: #f472b6; }
.code-number { color: #fb923c; }

/* --- Navbar --- */
.vc-navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,0.82);
  backdrop-filter: blur(24px) saturate(200%);
  -webkit-backdrop-filter: blur(24px) saturate(200%);
  border-bottom: 1px solid rgba(0,0,0,0.04);
  transition: all 0.4s cubic-bezier(0.4,0,0.2,1);
}
.vc-navbar.scrolled {
  box-shadow: 0 4px 30px rgba(0,0,0,0.06);
  border-bottom-color: rgba(0,0,0,0.08);
}
.vc-navbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.vc-logo {
  display: flex; align-items: center; gap: 10px;
  font-weight: 800; font-size: 1.15rem;
  color: var(--vc-gray-900);
}
.vc-logo-icon {
  width: 38px; height: 38px;
  background: var(--vc-gradient-blue);
  border-radius: 11px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 1rem;
  box-shadow: 0 4px 12px rgba(37,99,235,0.3);
  transition: transform 0.3s;
}
.vc-logo:hover .vc-logo-icon { transform: scale(1.08) rotate(-3deg); }
.vc-logo span { color: var(--vc-primary); }
.vc-nav { display: flex; align-items: center; gap: 4px; list-style: none; }
.vc-nav a {
  padding: 8px 16px;
  border-radius: var(--vc-radius-sm);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--vc-gray-600);
  transition: all 0.25s;
  position: relative;
}
.vc-nav a:hover { color: var(--vc-primary); background: var(--vc-primary-50); }
.vc-nav a.active { color: var(--vc-primary); background: var(--vc-primary-50); }
.vc-nav-cta {
  background: var(--vc-gradient-blue) !important;
  color: #fff !important;
  padding: 8px 22px !important;
  border-radius: var(--vc-radius-sm) !important;
  font-weight: 700 !important;
  box-shadow: 0 4px 14px rgba(37,99,235,0.25);
}
.vc-nav-cta:hover { opacity: 0.92; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(37,99,235,0.35) !important; color: #fff !important; }

/* Mobile nav */
.vc-hamburger {
  display: none; cursor: pointer; background: none; border: none;
  width: 40px; height: 40px; position: relative; z-index: 1001;
  border-radius: 8px;
}
.vc-hamburger:hover { background: var(--vc-gray-100); }
.vc-hamburger span {
  display: block; width: 22px; height: 2px; background: var(--vc-gray-700);
  margin: 5px auto; transition: all 0.3s; border-radius: 2px;
}
@media (max-width: 768px) {
  .vc-hamburger { display: flex; align-items: center; justify-content: center; }
  .vc-nav {
    position: fixed; top: 0; right: -100%; width: 300px; height: 100vh;
    background: rgba(255,255,255,0.98); backdrop-filter: blur(30px);
    flex-direction: column; padding: 88px 24px 24px;
    box-shadow: -10px 0 60px rgba(0,0,0,0.12); gap: 4px;
    transition: right 0.35s cubic-bezier(0.4,0,0.2,1);
  }
  .vc-nav.open { right: 0; }
  .vc-nav a { width: 100%; padding: 14px 18px; font-size: 1rem; border-radius: var(--vc-radius-sm); }
  .vc-nav-cta { text-align: center; margin-top: 16px; }
}

/* --- Hero (Homepage) --- */
.vc-hero {
  position: relative;
  background: var(--vc-gradient);
  padding: 170px 24px 110px;
  text-align: center;
  color: #fff;
  overflow: hidden;
}
.vc-hero::before {
  content: '';
  position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.vc-hero::after {
  content: '';
  position: absolute; bottom: -2px; left: 0; right: 0; height: 80px;
  background: linear-gradient(to top, #fff 0%, transparent 100%);
  z-index: 1;
}
.vc-hero-inner {
  position: relative; z-index: 2;
  max-width: 840px; margin: 0 auto;
}
.vc-hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(12px);
  padding: 8px 24px;
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 28px;
  border: 1px solid rgba(255,255,255,0.18);
  animation: fadeInDown 0.8s ease both;
}
.vc-hero h1 {
  font-size: clamp(2rem, 5.5vw, 3.4rem);
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: 20px;
  letter-spacing: -0.03em;
  animation: fadeInUp 0.8s ease 0.15s both;
}
.vc-hero .hero-sub {
  font-size: clamp(1rem, 2.5vw, 1.18rem);
  opacity: 0.9;
  line-height: 1.8;
  font-weight: 400;
  max-width: 620px;
  margin: 0 auto 36px;
  animation: fadeInUp 0.8s ease 0.3s both;
}
.vc-hero-actions {
  display: flex; gap: 14px; justify-content: center; flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.45s both;
}
/* Floating orbs in hero */
.vc-hero-orb {
  position: absolute; border-radius: 50%; pointer-events: none;
  filter: blur(60px); opacity: 0.3;
}
.vc-hero-orb-1 { width: 400px; height: 400px; background: rgba(168,85,247,0.5); top: -100px; right: -100px; animation: orbFloat 8s ease-in-out infinite; }
.vc-hero-orb-2 { width: 300px; height: 300px; background: rgba(37,99,235,0.4); bottom: -50px; left: -80px; animation: orbFloat 10s ease-in-out infinite reverse; }
.vc-hero-orb-3 { width: 200px; height: 200px; background: rgba(217,70,239,0.3); top: 30%; left: 15%; animation: orbFloat 12s ease-in-out infinite 2s; }

/* Animated version badge */
.vc-version-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.2);
  padding: 4px 14px; border-radius: 100px; font-size: 0.75rem; font-weight: 700;
  margin-bottom: 8px;
}
.vc-version-badge .dot {
  width: 6px; height: 6px; border-radius: 50%; background: #34d399;
  animation: pulse 2s ease-in-out infinite;
}

/* --- Buttons --- */
.vc-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 30px;
  border-radius: 14px;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4,0,0.2,1);
  border: none;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}
.vc-btn::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, transparent 50%);
  opacity: 0; transition: opacity 0.3s;
}
.vc-btn:hover::after { opacity: 1; }
.vc-btn-white {
  background: #fff; color: var(--vc-primary);
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}
.vc-btn-white:hover { transform: translateY(-3px); box-shadow: 0 12px 36px rgba(0,0,0,0.15); color: var(--vc-primary-dark); }
.vc-btn-outline {
  background: rgba(255,255,255,0.08);
  color: #fff;
  border: 2px solid rgba(255,255,255,0.3);
  backdrop-filter: blur(8px);
}
.vc-btn-outline:hover { background: rgba(255,255,255,0.16); color: #fff; border-color: rgba(255,255,255,0.5); transform: translateY(-2px); }
.vc-btn-primary {
  background: var(--vc-gradient-blue); color: #fff;
  box-shadow: 0 4px 16px rgba(37,99,235,0.3);
}
.vc-btn-primary:hover { transform: translateY(-3px); box-shadow: 0 10px 28px rgba(37,99,235,0.4); color: #fff; }
.vc-btn-success {
  background: var(--vc-gradient-success); color: #fff;
  box-shadow: 0 4px 16px rgba(16,185,129,0.3);
}
.vc-btn-success:hover { transform: translateY(-3px); box-shadow: 0 10px 28px rgba(16,185,129,0.4); color: #fff; }
.vc-btn-sm { padding: 10px 20px; font-size: 0.85rem; border-radius: var(--vc-radius-sm); }
.vc-btn-lg { padding: 18px 36px; font-size: 1.05rem; border-radius: 18px; }

/* --- Page Hero (sub-pages) --- */
.vc-page-hero {
  background: var(--vc-gradient);
  padding: 140px 24px 70px;
  color: #fff;
  text-align: center;
  position: relative; overflow: hidden;
}
.vc-page-hero::before {
  content: ''; position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.vc-page-hero::after {
  content: ''; position: absolute; bottom: -2px; left: 0; right: 0; height: 60px;
  background: linear-gradient(to top, #fff, transparent);
}
.vc-page-hero h1 {
  font-size: clamp(1.6rem,4vw,2.5rem); font-weight: 900; margin-bottom: 10px;
  position: relative; z-index: 1; animation: fadeInUp 0.6s ease both;
}
.vc-page-hero p { opacity: 0.88; font-size: 1.05rem; position: relative; z-index: 1; animation: fadeInUp 0.6s ease 0.1s both; }
.vc-breadcrumb {
  position: relative; z-index: 1; margin-bottom: 20px;
  display: flex; justify-content: center; gap: 8px;
  font-size: 0.82rem; opacity: 0.7;
  animation: fadeIn 0.6s ease both;
}
.vc-breadcrumb a { color: #fff; }

/* --- Sections --- */
.vc-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 24px;
}
.vc-section-sm { max-width: 960px; }
.vc-section-xs { max-width: 800px; }
.vc-section-title {
  text-align: center;
  margin-bottom: 52px;
}
.vc-section-title h2 {
  font-size: 1.9rem; font-weight: 900;
  margin-bottom: 12px; letter-spacing: -0.02em;
}
.vc-section-title p {
  font-size: 1rem; color: var(--vc-gray-500);
  max-width: 600px; margin: 0 auto;
}
.vc-section-title .title-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 52px; height: 52px;
  border-radius: 16px;
  background: var(--vc-primary-50);
  color: var(--vc-primary);
  font-size: 1.4rem;
  margin-bottom: 16px;
  box-shadow: 0 4px 12px rgba(37,99,235,0.1);
}

/* Section Divider */
.vc-section-divider {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
}
.vc-section-divider hr {
  border: none; height: 1px;
  background: linear-gradient(to right, transparent, var(--vc-gray-200), transparent);
}

/* --- Disclaimer / Warning Banners --- */
.vc-disclaimer {
  border-radius: var(--vc-radius-lg);
  padding: 32px;
  margin: 24px auto;
  max-width: 1200px;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
}
.vc-disclaimer:hover {
  transform: translateY(-2px);
}
.vc-disclaimer::before {
  content: '';
  position: absolute; top: 0; left: 0; bottom: 0;
  width: 5px;
}
.vc-disclaimer-danger {
  background: linear-gradient(135deg, #fef2f2 0%, #fff1f2 50%, #fce7f3 100%);
  border: 1px solid #fecaca;
  box-shadow: 0 4px 20px rgba(239,68,68,0.06);
}
.vc-disclaimer-danger::before { background: linear-gradient(180deg, #ef4444, #dc2626); }
.vc-disclaimer-danger:hover { box-shadow: 0 8px 32px rgba(239,68,68,0.1); }
.vc-disclaimer-warning {
  background: linear-gradient(135deg, #fffbeb 0%, #fefce8 50%, #fef9c3 100%);
  border: 1px solid #fde68a;
  box-shadow: 0 4px 20px rgba(245,158,11,0.06);
}
.vc-disclaimer-warning::before { background: linear-gradient(180deg, #f59e0b, #d97706); }
.vc-disclaimer-warning:hover { box-shadow: 0 8px 32px rgba(245,158,11,0.1); }
.vc-disclaimer-info {
  background: linear-gradient(135deg, var(--vc-primary-50) 0%, #f0f9ff 50%, #e0f2fe 100%);
  border: 1px solid #bfdbfe;
  box-shadow: 0 4px 20px rgba(37,99,235,0.06);
}
.vc-disclaimer-info::before { background: linear-gradient(180deg, #2563eb, #1d4ed8); }
.vc-disclaimer-info:hover { box-shadow: 0 8px 32px rgba(37,99,235,0.1); }
.vc-disclaimer-success {
  background: linear-gradient(135deg, #ecfdf5 0%, #f0fdf4 50%, #dcfce7 100%);
  border: 1px solid #bbf7d0;
  box-shadow: 0 4px 20px rgba(16,185,129,0.06);
}
.vc-disclaimer-success::before { background: linear-gradient(180deg, #10b981, #059669); }
.vc-disclaimer h3 {
  font-size: 1.08rem; font-weight: 800;
  margin-bottom: 12px;
  display: flex; align-items: center; gap: 10px;
}
.vc-disclaimer p, .vc-disclaimer li {
  font-size: 0.92rem; line-height: 1.95;
}
.vc-disclaimer ul { padding-left: 22px; }
.vc-disclaimer li { margin-bottom: 4px; }

/* --- Cards --- */
.vc-card {
  background: #fff;
  border: 1px solid var(--vc-gray-200);
  border-radius: var(--vc-radius-lg);
  padding: 32px;
  transition: all 0.35s cubic-bezier(0.4,0,0.2,1);
  position: relative;
  overflow: hidden;
}
.vc-card::before {
  content: ''; position: absolute; inset: 0;
  background: var(--vc-gradient-mesh);
  opacity: 0; transition: opacity 0.4s;
}
.vc-card:hover {
  box-shadow: 0 24px 60px rgba(0,0,0,0.08);
  border-color: rgba(37,99,235,0.15);
  transform: translateY(-6px);
}
.vc-card:hover::before { opacity: 1; }
.vc-card > * { position: relative; z-index: 1; }
.vc-card-icon {
  width: 56px; height: 56px;
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 18px;
  transition: transform 0.3s;
}
.vc-card:hover .vc-card-icon { transform: scale(1.1); }
.vc-card h3 { font-size: 1.08rem; font-weight: 700; margin-bottom: 10px; }
.vc-card p { font-size: 0.88rem; color: var(--vc-gray-500); line-height: 1.75; }
.vc-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
@media (max-width: 576px) { .vc-card-grid { grid-template-columns: 1fr; } }

/* Numbered cards */
.vc-card-numbered {
  counter-increment: card-number;
  padding-top: 48px;
}
.vc-card-numbered::after {
  content: counter(card-number, decimal-leading-zero);
  position: absolute; top: 20px; right: 24px;
  font-size: 2.5rem; font-weight: 900;
  color: var(--vc-gray-100);
  z-index: 0;
}

/* --- Feature Detail Blocks --- */
.vc-feature-block {
  padding: 52px 0;
  border-bottom: 1px solid var(--vc-gray-100);
}
.vc-feature-block:last-child { border-bottom: none; }
.vc-feature-block h3 {
  font-size: 1.35rem; font-weight: 800;
  margin-bottom: 16px;
  display: flex; align-items: center; gap: 12px;
}
.vc-feature-block h3 .fb-icon {
  width: 42px; height: 42px;
  border-radius: 12px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 1.15rem; flex-shrink: 0;
}
.vc-feature-list {
  list-style: none; padding: 0;
}
.vc-feature-list li {
  padding: 12px 0 12px 32px;
  position: relative;
  font-size: 0.92rem;
  border-bottom: 1px solid var(--vc-gray-100);
  transition: background 0.2s;
}
.vc-feature-list li:last-child { border-bottom: none; }
.vc-feature-list li:hover { background: var(--vc-gray-50); border-radius: 8px; }
.vc-feature-list li::before {
  content: '\2713';
  position: absolute; left: 4px; top: 12px;
  color: var(--vc-success);
  font-weight: 700;
  font-size: 0.9rem;
}

/* --- Step Blocks --- */
.vc-step {
  display: flex; gap: 28px;
  padding: 36px 0;
  border-bottom: 1px solid var(--vc-gray-100);
}
.vc-step:last-child { border-bottom: none; }
.vc-step-num {
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--vc-gradient-blue);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.15rem; font-weight: 800;
  flex-shrink: 0;
  box-shadow: 0 6px 20px rgba(37,99,235,0.25);
  transition: transform 0.3s;
}
.vc-step:hover .vc-step-num { transform: scale(1.08); }
.vc-step-content { flex: 1; }
.vc-step-content h4 { font-size: 1.12rem; font-weight: 700; margin-bottom: 10px; }
.vc-step-content p { font-size: 0.92rem; color: var(--vc-gray-600); }

/* --- Table of Contents (Sidebar) --- */
.vc-toc-layout { display: flex; gap: 48px; }
.vc-toc {
  position: sticky; top: 84px;
  width: 250px; flex-shrink: 0;
  max-height: calc(100vh - 100px);
  overflow-y: auto;
  padding-right: 16px;
}
.vc-toc::-webkit-scrollbar { width: 3px; }
.vc-toc::-webkit-scrollbar-thumb { background: var(--vc-gray-300); border-radius: 10px; }
.vc-toc h4 { font-size: 0.75rem; font-weight: 700; color: var(--vc-gray-400); text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 16px; }
.vc-toc a {
  display: block; padding: 7px 14px;
  font-size: 0.82rem; color: var(--vc-gray-500);
  border-left: 2px solid transparent;
  border-radius: 0 8px 8px 0;
  margin-bottom: 2px;
  transition: all 0.2s;
}
.vc-toc a:hover { color: var(--vc-primary); background: var(--vc-primary-50); border-left-color: var(--vc-primary-light); }
.vc-toc a.active { color: var(--vc-primary); background: var(--vc-primary-50); border-left-color: var(--vc-primary); font-weight: 600; }
.vc-toc-main { flex: 1; min-width: 0; }
@media (max-width: 992px) {
  .vc-toc-layout { flex-direction: column; }
  .vc-toc { display: none; }
}

/* --- Tabs --- */
.vc-tabs { display: flex; gap: 4px; border-bottom: 2px solid var(--vc-gray-200); margin-bottom: 28px; overflow-x: auto; }
.vc-tab {
  padding: 12px 22px; font-size: 0.9rem; font-weight: 600;
  color: var(--vc-gray-500); cursor: pointer;
  border-bottom: 3px solid transparent; margin-bottom: -2px;
  transition: all 0.25s; background: none; border-top: none; border-left: none; border-right: none;
  white-space: nowrap;
}
.vc-tab:hover { color: var(--vc-primary); }
.vc-tab.active { color: var(--vc-primary); border-bottom-color: var(--vc-primary); }
.vc-tab-panel { display: none; }
.vc-tab-panel.active { display: block; animation: fadeIn 0.4s ease; }

/* --- Supervisor / Person Card --- */
.vc-person-card {
  display: flex; gap: 28px; align-items: center;
  background: #fff;
  border: 1px solid var(--vc-gray-200);
  border-radius: var(--vc-radius-lg);
  padding: 32px;
  box-shadow: var(--vc-shadow);
  transition: all 0.3s;
}
.vc-person-card:hover { box-shadow: var(--vc-shadow-lg); transform: translateY(-2px); }
.vc-person-avatar {
  width: 88px; height: 88px;
  border-radius: 50%;
  background: var(--vc-gradient-blue);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 2.2rem; flex-shrink: 0;
  box-shadow: 0 8px 24px rgba(37,99,235,0.25);
}
.vc-person-info { flex: 1; }
.vc-person-info h4 { font-size: 1.1rem; font-weight: 800; margin-bottom: 4px; }
.vc-person-info .role { font-size: 0.82rem; color: var(--vc-gray-500); margin-bottom: 10px; font-weight: 600; }
.vc-person-links { display: flex; gap: 10px; flex-wrap: wrap; }
.vc-person-links a {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 16px; border-radius: 100px;
  font-size: 0.8rem; font-weight: 600;
  background: var(--vc-gray-50); border: 1px solid var(--vc-gray-200);
  color: var(--vc-gray-600);
  transition: all 0.25s;
}
.vc-person-links a:hover { border-color: var(--vc-primary); color: var(--vc-primary); background: var(--vc-primary-50); transform: translateY(-1px); }

/* --- Stats Row --- */
.vc-stats-row {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 20px; margin: 32px 0;
}
.vc-stat {
  text-align: center; padding: 28px 16px;
  background: #fff; border: 1px solid var(--vc-gray-200);
  border-radius: var(--vc-radius-lg);
  transition: all 0.3s;
}
.vc-stat:hover { box-shadow: var(--vc-shadow-lg); transform: translateY(-4px); border-color: transparent; }
.vc-stat-num {
  font-size: 2rem; font-weight: 900;
  background: var(--vc-gradient-blue); -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; line-height: 1.2; margin-bottom: 4px;
}
.vc-stat-label { font-size: 0.8rem; color: var(--vc-gray-500); font-weight: 600; }

/* --- Accordion --- */
.vc-accordion { border: 1px solid var(--vc-gray-200); border-radius: var(--vc-radius); overflow: hidden; margin-bottom: 12px; transition: box-shadow 0.3s; }
.vc-accordion:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.04); }
.vc-accordion-header {
  padding: 18px 24px; font-weight: 700; font-size: 0.95rem;
  cursor: pointer; display: flex; justify-content: space-between; align-items: center;
  background: var(--vc-gray-50); transition: background 0.2s;
}
.vc-accordion-header:hover { background: var(--vc-gray-100); }
.vc-accordion-header .arrow { transition: transform 0.3s; font-size: 0.8rem; }
.vc-accordion.open .arrow { transform: rotate(180deg); }
.vc-accordion-body { padding: 0 24px; max-height: 0; overflow: hidden; transition: max-height 0.5s cubic-bezier(0.4,0,0.2,1), padding 0.3s; }
.vc-accordion.open .vc-accordion-body { max-height: 5000px; padding: 20px 24px; }

/* --- Info Boxes --- */
.vc-info-box {
  border-radius: var(--vc-radius);
  padding: 24px 28px;
  margin: 16px 0;
  display: flex; gap: 16px;
}
.vc-info-box .info-icon { font-size: 1.3rem; flex-shrink: 0; margin-top: 2px; }
.vc-info-box-tip { background: #ecfdf5; border-left: 4px solid var(--vc-success); }
.vc-info-box-tip .info-icon { color: var(--vc-success); }
.vc-info-box-warning { background: var(--vc-warning-50); border-left: 4px solid var(--vc-warning); }
.vc-info-box-warning .info-icon { color: var(--vc-warning); }
.vc-info-box-danger { background: var(--vc-danger-50); border-left: 4px solid var(--vc-danger); }
.vc-info-box-danger .info-icon { color: var(--vc-danger); }
.vc-info-box-note { background: var(--vc-primary-50); border-left: 4px solid var(--vc-primary); }
.vc-info-box-note .info-icon { color: var(--vc-primary); }

/* --- Footer --- */
.vc-footer {
  background: var(--vc-gray-900);
  color: var(--vc-gray-400);
  padding: 64px 24px 36px;
  position: relative;
}
.vc-footer::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--vc-gradient-blue);
}
.vc-footer-inner {
  max-width: 1200px; margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}
.vc-footer h5 { color: #fff; font-size: 0.92rem; font-weight: 700; margin-bottom: 16px; }
.vc-footer p { font-size: 0.82rem; line-height: 1.75; }
.vc-footer a { color: var(--vc-gray-400); font-size: 0.85rem; display: block; padding: 5px 0; transition: all 0.2s; }
.vc-footer a:hover { color: #fff; padding-left: 4px; }
.vc-footer-bottom {
  max-width: 1200px; margin: 44px auto 0;
  padding-top: 24px;
  border-top: 1px solid var(--vc-gray-700);
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.78rem;
}
@media (max-width: 768px) {
  .vc-footer-inner { grid-template-columns: 1fr 1fr; }
  .vc-footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}
@media (max-width: 480px) {
  .vc-footer-inner { grid-template-columns: 1fr; }
}

/* --- Table --- */
.vc-table-wrap { overflow-x: auto; border-radius: var(--vc-radius); border: 1px solid var(--vc-gray-200); }
.vc-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.88rem;
}
.vc-table th {
  background: var(--vc-gray-50);
  font-weight: 700;
  text-align: left;
  padding: 14px 18px;
  border-bottom: 2px solid var(--vc-gray-200);
  white-space: nowrap;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--vc-gray-600);
}
.vc-table td {
  padding: 13px 18px;
  border-bottom: 1px solid var(--vc-gray-100);
}
.vc-table tr:last-child td { border-bottom: none; }
.vc-table tr:hover td { background: var(--vc-gray-50); }

/* --- Tags --- */
.vc-tag {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 4px 12px; border-radius: 100px;
  font-size: 0.72rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.05em;
}
.vc-tag-blue { background: var(--vc-primary-50); color: var(--vc-primary); }
.vc-tag-green { background: var(--vc-success-50); color: var(--vc-success); }
.vc-tag-red { background: var(--vc-danger-50); color: var(--vc-danger); }
.vc-tag-yellow { background: var(--vc-warning-50); color: #92400e; }
.vc-tag-violet { background: #faf5ff; color: var(--vc-violet); }

/* --- Utility --- */
.vc-container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.vc-bg-gray { background: var(--vc-gray-50); }
.vc-bg-white { background: #fff; }
.vc-bg-mesh { background-image: var(--vc-gradient-mesh); }
.vc-text-center { text-align: center; }
.vc-mt-0 { margin-top: 0; }
.vc-mb-0 { margin-bottom: 0; }
.vc-gap-grid { display: grid; gap: 24px; }
.vc-flex { display: flex; }
.vc-flex-wrap { flex-wrap: wrap; }
.vc-gap-8 { gap: 8px; }
.vc-gap-12 { gap: 12px; }
.vc-gap-16 { gap: 16px; }
.vc-gap-24 { gap: 24px; }

/* Floating label for sections */
.vc-floating-label {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 16px; border-radius: 100px;
  font-size: 0.75rem; font-weight: 700;
  background: var(--vc-primary-50); color: var(--vc-primary);
  text-transform: uppercase; letter-spacing: 0.06em;
  margin-bottom: 12px;
}

/* Grid helper for install page */
.vc-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.vc-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
@media (max-width: 768px) {
  .vc-grid-2, .vc-grid-3 { grid-template-columns: 1fr; }
}

/* File tree */
.vc-file-tree {
  background: var(--vc-gray-900); color: #e2e8f0;
  border-radius: var(--vc-radius); padding: 24px;
  font-family: var(--vc-font-code); font-size: 0.84rem;
  line-height: 1.9; border: 1px solid var(--vc-gray-700);
}
.vc-file-tree .dir { color: #60a5fa; }
.vc-file-tree .file { color: #94a3b8; }
.vc-file-tree .highlight { color: #34d399; font-weight: 600; }

/* --- Animations --- */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeInDown { from { opacity: 0; transform: translateY(-16px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeInLeft { from { opacity: 0; transform: translateX(-24px); } to { opacity: 1; transform: translateX(0); } }
@keyframes slideUp { from { opacity: 0; transform: translateY(40px); } to { opacity: 1; transform: translateY(0); } }
@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0); }
  25% { transform: translate(20px, -30px); }
  50% { transform: translate(-15px, 20px); }
  75% { transform: translate(25px, 10px); }
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}
.fade-in { animation: fadeIn 0.5s ease both; }
.fade-in-up { animation: fadeInUp 0.6s ease both; }

/* Scroll-reveal */
[data-reveal] { opacity: 0; transform: translateY(24px); transition: all 0.7s cubic-bezier(0.4,0,0.2,1); }
[data-reveal].revealed { opacity: 1; transform: translateY(0); }

/* Stagger children animation */
[data-reveal-stagger] > * {
  opacity: 0; transform: translateY(20px);
  transition: all 0.5s cubic-bezier(0.4,0,0.2,1);
}
[data-reveal-stagger].revealed > *:nth-child(1) { transition-delay: 0.05s; opacity: 1; transform: translateY(0); }
[data-reveal-stagger].revealed > *:nth-child(2) { transition-delay: 0.1s; opacity: 1; transform: translateY(0); }
[data-reveal-stagger].revealed > *:nth-child(3) { transition-delay: 0.15s; opacity: 1; transform: translateY(0); }
[data-reveal-stagger].revealed > *:nth-child(4) { transition-delay: 0.2s; opacity: 1; transform: translateY(0); }
[data-reveal-stagger].revealed > *:nth-child(5) { transition-delay: 0.25s; opacity: 1; transform: translateY(0); }
[data-reveal-stagger].revealed > *:nth-child(6) { transition-delay: 0.3s; opacity: 1; transform: translateY(0); }

/* === Responsive fine-tuning === */
@media (max-width: 576px) {
  .vc-hero { padding: 140px 16px 80px; }
  .vc-hero-actions { flex-direction: column; align-items: center; }
  .vc-btn-lg { width: 100%; justify-content: center; }
  .vc-section { padding: 48px 16px; }
  .vc-disclaimer { padding: 24px 20px; margin: 16px 8px; }
  .vc-person-card { flex-direction: column; text-align: center; gap: 16px; }
  .vc-person-links { justify-content: center; }
  .vc-step { flex-direction: column; gap: 16px; text-align: center; }
  .vc-step-num { margin: 0 auto; }
  .vc-stats-row { grid-template-columns: repeat(2, 1fr); }
  .vc-card { padding: 24px; }
}