/* ============================================
   CDKEY247 — Vietmap Live Pro Website
   Global Styles — Dark Theme + Green Accent
   ============================================ */

/* CSS Custom Properties */
:root {
  --bg: #0a0f1e;
  --bg-card: #111827;
  --bg-card-hover: #1a2236;
  --ink: #f1f5f9;
  --ink2: #cbd5e1;
  --muted: #94a3b8;
  --dim: #64748b;
  --accent: #00ff88;
  --accent-dark: #00cc6a;
  --accent-bg: rgba(0,255,136,0.08);
  --primary: #3b82f6;
  --warning: #fbbf24;
  --error: #ef4444;
  --line: rgba(255,255,255,0.06);
  --line-strong: rgba(255,255,255,0.12);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 12px 36px rgba(0,0,0,0.5);
  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --max-w: 1200px;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { cursor: pointer; font-family: inherit; }

/* Container */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 20px; }

/* ============================================
   HEADER
   ============================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10,15,30,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}
.brand-icon {
  font-size: 28px;
  line-height: 1;
}
.brand-name {
  font-size: 20px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.5px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-wrap: wrap;
}
.main-nav a {
  padding: 8px 12px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--muted);
  border-radius: var(--radius-sm);
  transition: color 0.2s, background 0.2s;
  white-space: nowrap;
}
.main-nav a:hover,
.main-nav a.active {
  color: var(--accent);
  background: var(--accent-bg);
}
.mobile-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line-strong);
  color: var(--ink);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 18px;
  margin-left: auto;
}
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(10,15,30,0.98);
  backdrop-filter: blur(20px);
  padding: 80px 20px 20px;
  flex-direction: column;
  gap: 4px;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  padding: 14px 16px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink2);
  border-radius: var(--radius-md);
  transition: all 0.2s;
}
.mobile-nav a:hover { color: var(--accent); background: var(--accent-bg); }
.mobile-nav-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  color: var(--ink);
  font-size: 28px;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  padding: 60px 20px 50px;
  text-align: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #0d1320 0%, #0a0f1e 50%, #071018 100%);
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(600px 400px at 20% 20%, rgba(0,255,136,0.06), transparent 60%),
    radial-gradient(500px 400px at 80% 60%, rgba(59,130,246,0.04), transparent 60%);
  pointer-events: none;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--accent-bg);
  border: 1px solid rgba(0,255,136,0.2);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 20px;
}
.hero-badge .pulse {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}
.hero h1 {
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
  position: relative;
}
.hero h1 .accent { color: var(--accent); }
.hero-desc {
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 600px;
  margin: 0 auto 28px;
  line-height: 1.7;
}
.hero-cta {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  font-size: 15px;
  font-weight: 700;
  border-radius: var(--radius-md);
  border: none;
  transition: all 0.2s;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: #0a0f1e;
  box-shadow: 0 4px 16px rgba(0,255,136,0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0,255,136,0.45);
}
.btn-outline {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--line-strong);
}
.btn-outline:hover {
  color: var(--accent);
  border-color: rgba(0,255,136,0.3);
  background: var(--accent-bg);
}
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}
.hero-stat {
  text-align: center;
}
.hero-stat b {
  display: block;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent);
}
.hero-stat span {
  font-size: 12px;
  color: var(--dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ============================================
   TRUST STRIP
   ============================================ */
.trust-strip {
  background: rgba(0,255,136,0.03);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 16px 20px;
}
.trust-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
}
.trust-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-bg);
  border: 1px solid rgba(0,255,136,0.15);
  border-radius: var(--radius-sm);
  font-size: 18px;
}
.trust-text b { display: block; font-size: 13px; color: var(--ink); }
.trust-text span { font-size: 11px; color: var(--dim); }

/* ============================================
   SECTION COMMON
   ============================================ */
.section {
  padding: 48px 20px;
}
.section-header {
  text-align: center;
  margin-bottom: 36px;
}
.section-header h2 {
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}
.section-header h2 .accent { color: var(--accent); }
.section-header p {
  color: var(--muted);
  font-size: 14px;
}

/* ============================================
   PRICING CARDS
   ============================================ */
.pricing-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.pricing-card {
  background: var(--bg-card);
  border: 2px solid var(--line);
  border-radius: var(--radius-xl);
  padding: 24px 20px;
  position: relative;
  transition: all 0.25s;
  display: flex;
  flex-direction: column;
}
.pricing-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0,255,136,0.3);
  box-shadow: 0 16px 40px rgba(0,0,0,0.4), 0 0 20px rgba(0,255,136,0.08);
}
.pricing-card.featured {
  border-color: var(--accent);
  box-shadow: 0 0 20px rgba(0,255,136,0.15);
}
.pricing-ribbon {
  position: absolute;
  top: -12px;
  left: 20px;
  padding: 4px 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #0a0f1e;
  font-size: 12px;
  font-weight: 800;
  border-radius: 999px;
  text-transform: uppercase;
}
.pricing-name {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 4px;
}
.pricing-desc {
  font-size: 13px;
  color: var(--dim);
  margin-bottom: 16px;
}
.pricing-price {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 4px;
}
.pricing-price small {
  font-size: 14px;
  color: var(--dim);
  font-weight: 400;
}
.pricing-original {
  font-size: 14px;
  color: var(--dim);
  text-decoration: line-through;
  margin-bottom: 16px;
}
.pricing-features {
  list-style: none;
  margin-bottom: 20px;
  flex: 1;
}
.pricing-features li {
  padding: 6px 0;
  font-size: 13.5px;
  color: var(--ink2);
  display: flex;
  align-items: center;
  gap: 8px;
}
.pricing-features li::before {
  content: '✓';
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
}
.pricing-btn {
  display: block;
  width: 100%;
  padding: 14px;
  text-align: center;
  font-size: 15px;
  font-weight: 700;
  border-radius: var(--radius-md);
  border: none;
  transition: all 0.2s;
}
.pricing-btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #0a0f1e;
  box-shadow: 0 4px 16px rgba(0,255,136,0.25);
}
.pricing-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,255,136,0.4);
}
.pricing-btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1px solid rgba(0,255,136,0.3);
}
.pricing-btn-outline:hover {
  background: var(--accent-bg);
}

/* ============================================
   FEATURES GRID
   ============================================ */
.features-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  transition: all 0.2s;
}
.feature-card:hover {
  border-color: rgba(0,255,136,0.2);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.feature-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-bg);
  border: 1px solid rgba(0,255,136,0.15);
  border-radius: var(--radius-md);
  font-size: 22px;
  margin-bottom: 14px;
}
.feature-card h3 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 6px;
}
.feature-card p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.6;
}

/* ============================================
   COMPARISON TABLE
   ============================================ */
.compare-table-wrap {
  max-width: 800px;
  margin: 0 auto;
  overflow-x: auto;
}
.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.compare-table th,
.compare-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}
.compare-table th {
  background: var(--bg-card);
  font-weight: 700;
  font-size: 13px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.compare-table td { color: var(--ink2); }
.compare-table tr:hover td { background: rgba(0,255,136,0.03); }
.check { color: var(--accent); font-weight: 700; }
.cross { color: var(--error); }

/* ============================================
   FAQ ACCORDION
   ============================================ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.faq-q {
  width: 100%;
  padding: 16px 20px;
  background: none;
  border: none;
  color: var(--ink);
  font-size: 15px;
  font-weight: 600;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.faq-q:hover { color: var(--accent); }
.faq-q::after {
  content: '+';
  font-size: 20px;
  color: var(--accent);
  flex-shrink: 0;
  transition: transform 0.2s;
}
.faq-item.open .faq-q::after {
  content: '−';
}
.faq-a {
  display: none;
  padding: 0 20px 16px;
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}
.faq-item.open .faq-a { display: block; }

/* ============================================
   TESTIMONIALS
   ============================================ */
.testimonials-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}
.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 20px;
}
.testimonial-stars {
  color: var(--warning);
  margin-bottom: 10px;
  font-size: 14px;
}
.testimonial-text {
  font-size: 14px;
  color: var(--ink2);
  margin-bottom: 14px;
  font-style: italic;
  line-height: 1.6;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 10px;
}
.testimonial-avatar {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0a0f1e;
  font-weight: 700;
  font-size: 14px;
}
.testimonial-name { font-size: 13px; font-weight: 600; }
.testimonial-role { font-size: 12px; color: var(--dim); }

/* ============================================
   BREADCRUMB
   ============================================ */
.breadcrumb {
  padding: 12px 20px;
  font-size: 13px;
  color: var(--dim);
}
.breadcrumb a { color: var(--muted); transition: color 0.2s; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span { margin: 0 6px; }

/* ============================================
   CONTENT / PROSE
   ============================================ */
.prose {
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.8;
  color: var(--ink2);
}
.prose h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--ink);
  margin: 32px 0 12px;
}
.prose h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--ink);
  margin: 24px 0 8px;
}
.prose p { margin-bottom: 16px; }
.prose ul, .prose ol {
  margin-bottom: 16px;
  padding-left: 20px;
}
.prose li {
  margin-bottom: 8px;
  list-style: disc;
}
.prose ol li { list-style: decimal; }
.prose a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.prose img {
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  margin: 16px 0;
}
.prose blockquote {
  border-left: 3px solid var(--accent);
  background: var(--accent-bg);
  padding: 12px 18px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 16px 0;
  font-style: italic;
}
.prose .alert {
  padding: 14px 18px;
  border-radius: var(--radius-md);
  margin: 16px 0;
  font-size: 14px;
}
.prose .alert-warning {
  background: rgba(251,191,36,0.1);
  border: 1px solid rgba(251,191,36,0.2);
  color: var(--warning);
}
.prose .alert-danger {
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.2);
  color: var(--error);
}
.prose .alert-success {
  background: var(--accent-bg);
  border: 1px solid rgba(0,255,136,0.2);
  color: var(--accent);
}

/* ============================================
   STEPS / HOW-TO
   ============================================ */
.steps {
  max-width: 700px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.step {
  display: flex;
  gap: 16px;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}
.step-num {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #0a0f1e;
  font-weight: 800;
  font-size: 16px;
  border-radius: 50%;
  flex-shrink: 0;
}
.step-content h3 { font-size: 15px; font-weight: 700; margin-bottom: 4px; }
.step-content p { font-size: 13px; color: var(--muted); }

/* ============================================
   CTA SECTION
   ============================================ */
.cta-section {
  padding: 48px 20px;
  text-align: center;
  background: linear-gradient(135deg, #0d1a10 0%, #0a0f1e 50%, #0d1320 100%);
  border-top: 1px solid rgba(0,255,136,0.1);
}
.cta-section h2 {
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  font-weight: 800;
  margin-bottom: 12px;
}
.cta-section p {
  color: var(--muted);
  margin-bottom: 24px;
  font-size: 15px;
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  background: #060a14;
  border-top: 1px solid var(--line);
  padding: 40px 20px 20px;
}
.footer-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
  margin-bottom: 32px;
}
.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 14px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.footer-col a {
  display: block;
  padding: 4px 0;
  font-size: 13px;
  color: var(--muted);
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--accent); }
.footer-col p {
  font-size: 13px;
  color: var(--dim);
  line-height: 1.6;
}
.footer-bottom {
  max-width: var(--max-w);
  margin: 0 auto;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12px;
  color: var(--dim);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
  .main-nav { display: none; }
  .mobile-toggle { display: block; }
  .header-inner { padding: 10px 16px; }
  .hero { padding: 40px 16px 36px; }
  .hero-stats { gap: 24px; }
  .trust-inner { gap: 20px; }
  .pricing-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-bottom { flex-direction: column; text-align: center; }
  .section { padding: 36px 16px; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.5rem; }
  .hero-cta { flex-direction: column; align-items: center; }
  .footer-grid { grid-template-columns: 1fr; }
  .trust-inner { flex-direction: column; gap: 12px; }
}

/* ============================================
   UTILITIES
   ============================================ */
.text-accent { color: var(--accent); }
.text-muted { color: var(--muted); }
.text-center { text-align: center; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}