/* ========================================
   igamingfraud.com — Global Stylesheet
   Dark Theme | Professional Consulting
   ======================================== */

/* --- Variables --- */
:root {
  --bg-primary: #0A0E1A;
  --bg-secondary: #111827;
  --bg-card: #1a2235;
  --accent: #06B6D4;
  --accent-hover: #0891B2;
  --accent-glow: rgba(6, 182, 212, 0.15);
  --purple: #8B5CF6;
  --text-primary: #F9FAFB;
  --text-secondary: #9CA3AF;
  --text-muted: #6B7280;
  --border: #1F2937;
  --border-accent: rgba(6, 182, 212, 0.3);
  --danger: #EF4444;
  --success: #10B981;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius: 12px;
  --radius-sm: 6px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-accent: 0 0 40px rgba(6, 182, 212, 0.1);
  --transition: 0.25s ease;
  --max-width: 1200px;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* --- Typography --- */
h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 800; line-height: 1.1; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.5rem); font-weight: 700; line-height: 1.2; letter-spacing: -0.01em; }
h3 { font-size: 1.25rem; font-weight: 600; line-height: 1.3; }
h4 { font-size: 1rem; font-weight: 600; }
p { color: var(--text-secondary); line-height: 1.7; }

/* --- Layout --- */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section-sm { padding: 64px 0; }
.section-header { text-align: center; margin-bottom: 64px; }
.section-header p { max-width: 600px; margin: 16px auto 0; font-size: 1.1rem; }
.label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid var(--border-accent);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 16px;
}
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}
.btn-primary {
  background: var(--accent);
  color: #000;
}
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: 0 8px 24px rgba(6, 182, 212, 0.35); }
.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1.5px solid var(--border-accent);
}
.btn-outline:hover { background: var(--accent-glow); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--text-secondary); }
.btn-ghost:hover { color: var(--text-primary); }

/* --- Cards --- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: var(--transition);
}
.card:hover { border-color: var(--border-accent); box-shadow: var(--shadow-accent); transform: translateY(-2px); }
.card-icon {
  width: 48px; height: 48px;
  background: var(--accent-glow);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 20px;
}

/* --- Navigation --- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 16px 0;
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.nav-inner {
  max-width: var(--max-width); margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  font-size: 1.1rem; font-weight: 800; letter-spacing: -0.02em;
  color: var(--text-primary);
}
.nav-logo span { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a {
  font-size: 0.9rem; font-weight: 500; color: var(--text-secondary);
  transition: var(--transition);
}
.nav-links a:hover, .nav-links a.active { color: var(--text-primary); }
.nav-cta { margin-left: 16px; }
.nav-links .btn-primary { color: #0A0E1A; }
.nav-links .btn-primary:hover { color: #0A0E1A; }
.nav-logo { display: flex; align-items: center; }
.nav-logo-img { height: 30px; width: auto; flex-shrink: 0; margin-right: 10px; }
.nav-hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; }
.nav-hamburger span { width: 24px; height: 2px; background: var(--text-primary); border-radius: 2px; transition: var(--transition); }

/* --- Hero --- */
.hero {
  padding: 160px 0 96px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; top: -200px; left: 50%; transform: translateX(-50%);
  width: 800px; height: 800px;
  background: radial-gradient(circle, rgba(6,182,212,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.hero-content {}
.hero-content h1 { margin-bottom: 24px; }
.hero-content h1 em { font-style: normal; color: var(--accent); }
.hero-content p { font-size: 1.15rem; margin-bottom: 36px; max-width: 480px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-visual {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  position: relative;
}
.hero-visual::before {
  content: '';
  position: absolute; inset: -1px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(6,182,212,0.3), transparent 60%);
  z-index: -1;
}
.stat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.stat-item { text-align: center; padding: 20px; background: var(--bg-secondary); border-radius: var(--radius-sm); border: 1px solid var(--border); }
.stat-number { font-size: 1.8rem; font-weight: 800; color: var(--accent); display: block; }
.stat-label { font-size: 0.8rem; color: var(--text-muted); margin-top: 4px; }

/* --- Stats Bar --- */
.stats-bar { background: var(--bg-secondary); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 40px 0; }
.stats-bar-inner { display: flex; justify-content: space-between; align-items: center; gap: 32px; flex-wrap: wrap; }
.stats-bar-item { text-align: center; flex: 1; min-width: 150px; }
.stats-bar-item .number { font-size: 2rem; font-weight: 800; color: var(--text-primary); display: block; }
.stats-bar-item .number span { color: var(--accent); }
.stats-bar-item p { font-size: 0.85rem; color: var(--text-muted); margin-top: 4px; }

/* --- Services Grid --- */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card h3 { margin-bottom: 12px; }
.service-card ul { margin-top: 16px; display: flex; flex-direction: column; gap: 8px; }
.service-card ul li { font-size: 0.9rem; color: var(--text-secondary); padding-left: 16px; position: relative; }
.service-card ul li::before { content: '→'; position: absolute; left: 0; color: var(--accent); }

/* --- Case Study Cards --- */
.case-card { display: flex; flex-direction: column; }
.case-card .case-tag {
  font-size: 0.75rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 12px;
}
.case-card h3 { margin-bottom: 12px; }
.case-card .case-stats { display: flex; gap: 24px; margin-top: 20px; padding-top: 20px; border-top: 1px solid var(--border); }
.case-card .case-stat .val { font-size: 1.3rem; font-weight: 800; color: var(--accent); }
.case-card .case-stat .key { font-size: 0.75rem; color: var(--text-muted); }

/* --- CTA Section --- */
.cta-section {
  text-align: center;
  background: linear-gradient(135deg, rgba(6,182,212,0.05), rgba(139,92,246,0.05));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 80px 48px;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 600px; height: 300px;
  background: radial-gradient(ellipse, rgba(6,182,212,0.08), transparent 70%);
}
.cta-section h2 { margin-bottom: 16px; }
.cta-section p { margin-bottom: 36px; font-size: 1.1rem; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* --- Footer --- */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 48px 0 24px;
}
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-brand p { margin-top: 12px; font-size: 0.9rem; max-width: 280px; }
.footer-col h4 { color: var(--text-primary); margin-bottom: 16px; font-size: 0.85rem; letter-spacing: 0.05em; text-transform: uppercase; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul li a { font-size: 0.9rem; color: var(--text-muted); transition: var(--transition); }
.footer-col ul li a:hover { color: var(--accent); }
.footer-bottom { padding-top: 24px; border-top: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.footer-bottom p { font-size: 0.85rem; color: var(--text-muted); }

/* --- Page Hero (inner pages) --- */
.page-hero { padding: 140px 0 64px; text-align: center; }
.page-hero p { max-width: 600px; margin: 16px auto 0; font-size: 1.1rem; }

/* --- Divider --- */
.divider { border: none; border-top: 1px solid var(--border); margin: 0; }

/* --- Badge --- */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.75rem; font-weight: 600;
  padding: 4px 10px; border-radius: 100px;
}
.badge-success { background: rgba(16,185,129,0.1); color: var(--success); border: 1px solid rgba(16,185,129,0.3); }
.badge-accent { background: var(--accent-glow); color: var(--accent); border: 1px solid var(--border-accent); }

/* --- Form --- */
.form-group { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }
.form-group label { font-size: 0.9rem; font-weight: 500; color: var(--text-primary); }
.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 0.95rem;
  transition: var(--transition);
  width: 100%;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-group textarea { resize: vertical; min-height: 140px; }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .grid-2, .grid-3, .services-grid { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .nav-inner { position: relative; }
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: rgba(10, 14, 26, 0.97);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 20px 24px 28px;
    gap: 4px;
    z-index: 99;
  }
  .nav-links.open li { width: 100%; }
  .nav-links.open a { display: block; padding: 10px 0; font-size: 1rem; color: var(--text-secondary); border-bottom: 1px solid var(--border); }
  .nav-links.open a:hover, .nav-links.open a.active { color: var(--text-primary); }
  .nav-links.open .nav-cta { margin: 16px 0 0 0; border-bottom: none; }
  .nav-links.open .btn-primary { color: #0A0E1A; display: inline-flex; }
  .nav-hamburger { display: flex; }
  .nav-hamburger span { transition: var(--transition); }
  .nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
  .nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .stats-bar-inner { justify-content: center; }
  .cta-section { padding: 48px 24px; }
}
@media (max-width: 480px) {
  .grid-4 { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: 1fr; }
}

/* ── Reading Progress Bar ── */
#reading-progress {
  position: fixed;
  top: 61px; left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--purple));
  z-index: 200;
  transition: width 0.1s linear;
  pointer-events: none;
  box-shadow: 0 0 8px rgba(6, 182, 212, 0.6);
}

/* ── Table of Contents ── */
#toc {
  display: none;
  background: var(--bg-card);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin: 0 0 48px 0;
}
#toc::before {
  content: 'In This Article';
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}
#toc ul { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 0; }
#toc ul li { padding: 0; }
#toc ul li::before { display: none; }
#toc ul li a {
  display: block;
  padding: 8px 0;
  font-size: 0.92rem;
  color: var(--text-secondary);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
  padding-left: 12px;
  border-left: 2px solid transparent;
}
#toc ul li:last-child a { border-bottom: none; }
#toc ul li a:hover { color: var(--text-primary); border-left-color: var(--accent); }
#toc ul li a.active { color: var(--accent); border-left-color: var(--accent); font-weight: 600; }

/* ── Article Prev / Next Navigation ── */
.article-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 64px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}
.article-nav-link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  transition: var(--transition);
}
.article-nav-link:hover { border-color: var(--border-accent); transform: translateY(-2px); box-shadow: var(--shadow-accent); }
.article-nav-link.next { text-align: right; }
.article-nav-label { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted); }
.article-nav-title { font-size: 0.92rem; font-weight: 600; color: var(--text-primary); line-height: 1.4; }
.article-nav-link.prev .article-nav-label::before { content: '← '; }
.article-nav-link.next .article-nav-label::after { content: ' →'; }
@media (max-width: 600px) {
  .article-nav { grid-template-columns: 1fr; }
  .article-nav-link.next { text-align: left; }
}