/* ============================================================
   NVIDIA Inspector Site — Global Design System
   Dark RTX-themed aesthetic
   ============================================================ */

/* ============================================================
   CSS Custom Properties (Design Tokens)
   ============================================================ */
:root {
  /* Colors */
  --color-bg: #0a0a0f;
  --color-bg-secondary: #0f0f1a;
  --color-bg-card: rgba(255, 255, 255, 0.04);
  --color-bg-card-hover: rgba(255, 255, 255, 0.07);
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-accent: rgba(118, 185, 0, 0.3);

  /* NVIDIA Green */
  --color-primary: #76b900;
  --color-primary-dark: #5a8c00;
  --color-primary-glow: rgba(118, 185, 0, 0.25);

  /* Electric Blue accent */
  --color-accent: #00d4ff;
  --color-accent-glow: rgba(0, 212, 255, 0.2);

  /* Text */
  --color-text: #e2e8f0;
  --color-text-muted: #8892a4;
  --color-text-dim: #4a5568;
  --color-white: #ffffff;

  /* Gradients */
  --gradient-hero: linear-gradient(135deg, #0a0a0f 0%, #0d1a2e 50%, #0a0f1a 100%);
  --gradient-card: linear-gradient(135deg, rgba(118,185,0,0.05), rgba(0,212,255,0.03));
  --gradient-green: linear-gradient(135deg, #76b900, #5a8c00);
  --gradient-text: linear-gradient(135deg, #76b900, #00d4ff);

  /* Typography */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --container-max: 1200px;
  --section-pad: 5rem 1.5rem;
  --section-pad-sm: 3rem 1.5rem;

  /* Shadows */
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-glow-green: 0 0 40px rgba(118, 185, 0, 0.15);
  --shadow-glow-blue: 0 0 40px rgba(0, 212, 255, 0.1);

  /* Border radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Transitions */
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  font-size: 1rem;
  min-height: 100vh;
  overflow-x: hidden;
}

main {
  min-width: 0;
}

/* ============================================================
   Typography
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-white);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.5rem); }
h4 { font-size: 1.15rem; }

p {
  color: var(--color-text);
  max-width: 75ch;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover { color: var(--color-accent); }

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 3px solid rgba(0, 212, 255, 0.5);
  outline-offset: 3px;
}

strong { color: var(--color-white); font-weight: 600; }

code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: rgba(118, 185, 0, 0.08);
  color: var(--color-primary);
  padding: 0.2em 0.5em;
  border-radius: 4px;
  border: 1px solid var(--color-border-accent);
}

pre {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.6;
}

pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: inherit;
}

blockquote {
  border-left: 3px solid var(--color-primary);
  padding: 1rem 1.5rem;
  background: rgba(118, 185, 0, 0.05);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 1.5rem 0;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

ul, ol {
  padding-left: 1.5rem;
}

li { margin-bottom: 0.5rem; }

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ============================================================
   Layout Utilities
   ============================================================ */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: var(--section-pad);
}

.section--sm {
  padding: var(--section-pad-sm);
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title h2 {
  margin-bottom: 0.75rem;
}

.section-title p {
  color: var(--color-text-muted);
  font-size: 1.1rem;
  max-width: 65ch;
  margin: 0 auto;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.text-center { text-align: center; }
.text-gradient {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================================
   Card Component
   ============================================================ */
.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-card);
  opacity: 0;
  transition: opacity var(--transition);
}

.card:hover {
  border-color: var(--color-border-accent);
  background: var(--color-bg-card-hover);
  box-shadow: var(--shadow-card), var(--shadow-glow-green);
  transform: translateY(-2px);
}

.card:hover::before { opacity: 1; }

/* ============================================================
   Button Components
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  padding: 0.85rem 2rem;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-green);
  color: #000;
  box-shadow: 0 4px 20px rgba(118, 185, 0, 0.3);
  position: relative;
  overflow: hidden;
}

.btn-primary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.btn-primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 30px rgba(118, 185, 0, 0.5);
  color: #000;
}

.btn-primary:hover::after { opacity: 1; }

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: rgba(118, 185, 0, 0.05);
}

.btn-lg {
  font-size: 1.1rem;
  padding: 1rem 2.5rem;
}

.btn-xl {
  font-size: 1.25rem;
  padding: 1.15rem 3rem;
  border-radius: var(--radius-lg);
}

/* Pulse animation for download button */
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 4px 20px rgba(118, 185, 0, 0.3); }
  50% { box-shadow: 0 4px 40px rgba(118, 185, 0, 0.6), 0 0 0 8px rgba(118, 185, 0, 0.1); }
}

.btn-download {
  animation: pulse-glow 2.5s ease-in-out infinite;
}

/* ============================================================
   Badge / Tag
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  font-weight: 600;
  font-family: var(--font-mono);
  padding: 0.3rem 0.75rem;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-green {
  background: rgba(118, 185, 0, 0.15);
  color: var(--color-primary);
  border: 1px solid rgba(118, 185, 0, 0.3);
}

.badge-blue {
  background: rgba(0, 212, 255, 0.1);
  color: var(--color-accent);
  border: 1px solid rgba(0, 212, 255, 0.2);
}

.badge-white {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}

/* ============================================================
   Table Component
   ============================================================ */
.data-table {
  width: 100%;
  border-collapse: collapse;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.data-table th {
  background: rgba(118, 185, 0, 0.1);
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.85rem 1.25rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border-accent);
}

.data-table td {
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: 0.95rem;
}

.data-table tr:last-child td { border-bottom: none; }

.data-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.data-table td:first-child {
  font-weight: 600;
  color: var(--color-white);
}

/* ============================================================
   Screenshot / Image display
   ============================================================ */
.screenshot-frame {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  background: var(--color-bg-secondary);
}

.screenshot-title {
  background: var(--color-bg-secondary);
  padding: 0.6rem 1rem;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border);
  font-family: var(--font-mono);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.screenshot-title::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 6px var(--color-primary);
}

/* ============================================================
   FAQ Accordion
   ============================================================ */
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 0.75rem;
  transition: border-color var(--transition);
}

.faq-item:hover {
  border-color: var(--color-border-accent);
}

.faq-question {
  width: 100%;
  background: var(--color-bg-card);
  color: var(--color-white);
  border: none;
  padding: 1.25rem 1.5rem;
  text-align: left;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-sans);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  transition: background var(--transition);
}

.faq-question:hover {
  background: var(--color-bg-card-hover);
}

.faq-question[aria-expanded="true"] {
  color: var(--color-primary);
}

.faq-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(118, 185, 0, 0.1);
  border: 1px solid rgba(118, 185, 0, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: var(--color-primary);
  transition: all var(--transition);
}

.faq-question[aria-expanded="true"] .faq-icon {
  background: var(--color-primary);
  color: #000;
  transform: rotate(45deg);
}

.faq-answer {
  background: rgba(0, 0, 0, 0.2);
  padding: 0 1.5rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.25s ease;
}

.faq-answer.open {
  max-height: 500px;
  padding: 1.25rem 1.5rem;
}

.faq-answer p { color: var(--color-text-muted); }

/* ============================================================
   Step / List items
   ============================================================ */
.step-list {
  list-style: none;
  padding: 0;
  counter-reset: step;
}

.step-list li {
  counter-increment: step;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1.25rem;
}

.step-list li::before {
  content: counter(step);
  flex-shrink: 0;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--gradient-green);
  color: #000;
  font-weight: 700;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 0.15rem;
}

/* ============================================================
   Rating Stars
   ============================================================ */
.rating {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.stars {
  color: #f59e0b;
  letter-spacing: 2px;
  font-size: 1.1rem;
}

.rating-value {
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--color-white);
}

.rating-count {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* ============================================================
   Hero Section
   ============================================================ */
.hero {
  position: relative;
  padding: 6rem 1.5rem 5rem;
  background: var(--gradient-hero);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 60%;
  height: 200%;
  background: radial-gradient(ellipse, rgba(118, 185, 0, 0.06) 0%, transparent 60%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  top: -20%;
  right: -20%;
  width: 50%;
  height: 150%;
  background: radial-gradient(ellipse, rgba(0, 212, 255, 0.04) 0%, transparent 60%);
  pointer-events: none;
}

.hero-badge {
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: clamp(2.25rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.hero-desc {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  margin-bottom: 2.5rem;
  max-width: 60ch;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.hero-stats {
  display: flex;
  gap: 2.5rem;
  margin-top: 3rem;
  flex-wrap: wrap;
}

.hero-stat-value {
  font-size: 1.75rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--color-primary);
  line-height: 1;
}

.hero-stat-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 0.25rem;
}

/* ============================================================
   Section Divider
   ============================================================ */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border), transparent);
  margin: 0 1.5rem;
}

/* ============================================================
   Breadcrumb
   ============================================================ */
.breadcrumb {
  font-size: 0.875rem;
  color: var(--color-text-dim);
  margin-bottom: 2rem;
}

.breadcrumb ol {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0;
}

.breadcrumb li:not(:last-child)::after {
  content: '/';
  color: var(--color-text-dim);
}
.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb .current { color: var(--color-text); }

/* ============================================================
   Page Header (inner pages)
   ============================================================ */
.page-header {
  background: var(--gradient-hero);
  padding: 4rem 1.5rem 3rem;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--color-border);
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at top left, rgba(118,185,0,0.05), transparent 60%);
}

/* ============================================================
   Info Box
   ============================================================ */
.info-box {
  background: rgba(0, 212, 255, 0.05);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
}

.info-box-icon { font-size: 1.25rem; flex-shrink: 0; margin-top: 0.1rem; }
.info-box-text { color: var(--color-text-muted); font-size: 0.95rem; }
.info-box-text strong { color: var(--color-accent); }

/* ============================================================
   Contact Form
   ============================================================ */
.contact-form {
  display: grid;
  gap: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.1rem;
  color: var(--color-white);
  font-family: var(--font-sans);
  font-size: 1rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-glow);
}

.form-group textarea { min-height: 140px; resize: vertical; }

/* ============================================================
   Scroll Animations
   ============================================================ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-fade-up {
  animation: fadeUp 0.6s ease forwards;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 768px) {
  .hero {
    padding: 4rem 1.25rem 3rem;
  }

  .hero-stats {
    gap: 1.5rem;
  }

  .section {
    padding: 3rem 1.25rem;
  }

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

  .data-table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-actions .btn { width: 100%; justify-content: center; }
}

@media (max-width: 480px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }

  .btn-xl {
    font-size: 1rem;
    padding: 0.9rem 1.75rem;
  }
}

/* ============================================================
   Scrollbar
   ============================================================ */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb {
  background: rgba(118, 185, 0, 0.3);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover { background: var(--color-primary); }

/* ============================================================
   Print
   ============================================================ */
@media print {
  body { background: white; color: black; }
  .header, .footer { display: none; }
}