/* ══════════════════════════════════════════════════════════════════
   VOLTSLOT CASINO NEDERLAND — DESIGN SYSTEM
   Theme: High-Voltage Cyber Neon (Electric Dark Mode)
   Clean Vanilla CSS Architecture & 100% Responsive
   ══════════════════════════════════════════════════════════════════ */

:root {
  --bg-base: #0b0e14;
  --bg-surface: #111622;
  --bg-card: #151b2a;
  --bg-card-hover: #1c2438;
  --bg-card-alt: #1a2233;
  --accent-volt: #ffd600;
  --accent-gold: #ffaa00;
  --accent-cyan: #00f0ff;
  --accent-purple: #8a2be2;
  --accent-gradient: linear-gradient(135deg, #ffd600 0%, #ff8800 100%);
  --volt-glow: 0 0 20px rgba(255, 214, 0, 0.3);
  --cyan-glow: 0 0 20px rgba(0, 240, 255, 0.25);
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --border-line: rgba(255, 255, 255, 0.08);
  --border-volt: rgba(255, 214, 0, 0.35);
  --border-cyan: rgba(0, 240, 255, 0.3);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  --container-max: 1180px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background-color: var(--bg-base);
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-base);
  color: var(--text-main);
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

a {
  color: var(--accent-cyan);
  text-decoration: none;
  transition: color 0.2s ease, text-shadow 0.2s ease;
}

a:hover {
  color: var(--accent-volt);
  text-shadow: var(--volt-glow);
}

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

code {
  font-family: "Consolas", "Courier New", monospace;
  background: rgba(255, 214, 0, 0.12);
  color: var(--accent-volt);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.9em;
}

/* ─── SITE HEADER ─── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 14, 20, 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-line);
}

.header-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0.9rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.55rem;
  font-weight: 900;
  letter-spacing: -0.5px;
  color: #fff;
  text-transform: uppercase;
  text-decoration: none;
}

.brand-logo .logo-bolt,
.brand-logo .volt-symbol {
  color: var(--accent-volt);
  text-shadow: var(--volt-glow);
  font-size: 1.4rem;
}

.main-nav {
  display: flex;
  align-items: center;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-muted);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: #fff;
  background: rgba(255, 214, 0, 0.08);
}

.nav-links a.active {
  color: var(--accent-volt);
  border-bottom: 2px solid var(--accent-volt);
}

/* ─── BUTTONS ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.95rem;
  padding: 0.7rem 1.5rem;
  border-radius: 30px;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  text-decoration: none;
  border: none;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #0b0e14 !important;
  box-shadow: 0 4px 18px rgba(255, 214, 0, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(255, 214, 0, 0.55);
  color: #0b0e14 !important;
  text-shadow: none;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: #fff !important;
  border: 1px solid var(--border-line);
}

.btn-secondary:hover {
  background: rgba(0, 240, 255, 0.1);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan) !important;
  transform: translateY(-2px);
  text-shadow: var(--cyan-glow);
}

.btn-large {
  padding: 0.85rem 2rem;
  font-size: 1.05rem;
}

.btn-sm {
  padding: 0.5rem 1.15rem;
  font-size: 0.85rem;
}

/* ─── BREADCRUMBS (POMPAGE) ─── */
.breadcrumb-nav {
  max-width: var(--container-max);
  margin: 1.25rem auto 0;
  padding: 0 1.5rem;
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
  font-size: 0.85rem;
  color: var(--text-dim);
}

.breadcrumb-item a {
  color: var(--text-muted);
}

.breadcrumb-item a:hover {
  color: var(--accent-volt);
}

.breadcrumb-item.active {
  color: var(--text-main);
  font-weight: 600;
}

.breadcrumb-separator {
  color: var(--text-dim);
  user-select: none;
}

/* ─── MAIN LAYOUT CONTAINERS ─── */
main {
  flex: 1;
}

.pillar-container,
.cluster-container {
  max-width: var(--container-max);
  margin: 1.5rem auto 4rem;
  padding: 0 1.5rem;
}

/* ─── HERO SECTIONS ─── */
.hero-section,
.cluster-hero {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 2.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  margin-bottom: 2.5rem;
  position: relative;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

.hero-section::before,
.cluster-hero::before {
  content: "";
  position: absolute;
  top: -100px;
  right: -100px;
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(138, 43, 226, 0.2) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content,
.cluster-hero-content {
  position: relative;
  z-index: 2;
}

.badge-status {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-radius: 20px;
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid var(--border-cyan);
  color: var(--accent-cyan);
  margin-bottom: 1.25rem;
}

/* STRICT H1 ONLY PRIMARY FOCUS KEYWORD */
h1 {
  font-size: 2.6rem;
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.5px;
  color: #fff;
  margin-bottom: 1.25rem;
}

/* HERO SUMMARY (NATURAL INTRO LEAD) */
.hero-summary {
  background: rgba(17, 22, 34, 0.85);
  border-left: 4px solid var(--accent-volt);
  padding: 1.25rem 1.5rem;
  margin: 1.25rem 0 1.75rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: 1.05rem;
  line-height: 1.7;
  color: #ffffff;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
  border-top: 1px solid var(--border-line);
  border-right: 1px solid var(--border-line);
  border-bottom: 1px solid var(--border-line);
}

.hero-summary strong {
  color: var(--accent-volt);
  font-weight: 800;
}

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

.hero-media,
.cluster-hero-media {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-line);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
  position: relative;
  z-index: 2;
}

.hero-media img,
.cluster-hero-media img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.hero-media:hover img,
.cluster-hero-media:hover img {
  transform: scale(1.02);
}

/* ─── QUICK FACTS DL ─── */
.quick-facts-section {
  background: var(--bg-surface);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-lg);
  padding: 2rem 2.25rem;
  margin-bottom: 2.5rem;
}

.quick-facts-section h2 {
  margin-bottom: 1.5rem;
}

.facts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
}

.fact-item {
  background: var(--bg-card);
  padding: 1.15rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.fact-item:hover {
  border-color: var(--border-volt);
  transform: translateY(-2px);
}

.fact-item dt {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.fact-item dd {
  font-size: 1.15rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.35;
}

/* ─── GENERAL CONTENT BLOCKS & HEADINGS ─── */
.content-block {
  margin-bottom: 2.75rem;
}

h2 {
  font-size: 1.75rem;
  font-weight: 800;
  color: #fff;
  margin: 2rem 0 1.25rem;
  padding-left: 0.85rem;
  border-left: 4px solid var(--accent-cyan);
  line-height: 1.3;
}

h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: #fff;
  margin: 1.5rem 0 0.75rem;
}

p {
  color: var(--text-main);
  font-size: 1.02rem;
  line-height: 1.75;
  margin-bottom: 1.25rem;
}

/* ─── DATA TABLES ─── */
.comparison-table-wrapper {
  overflow-x: auto;
  margin: 1.75rem 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-line);
  background: var(--bg-card);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

table.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}

table.data-table caption {
  padding: 1rem 1.25rem;
  text-align: left;
  font-weight: 800;
  font-size: 1rem;
  color: var(--accent-volt);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-line);
}

table.data-table th,
table.data-table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-line);
}

table.data-table thead th {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-muted);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

table.data-table tbody th {
  font-weight: 700;
  color: #fff;
}

table.data-table tbody tr:hover {
  background: rgba(255, 214, 0, 0.04);
}

/* ─── GIST EDGE-CASE BOX ─── */
.edge-case-box {
  background: linear-gradient(145deg, #181c2b 0%, #111420 100%);
  border: 1px solid var(--border-cyan);
  border-left: 5px solid var(--accent-cyan);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  margin: 2.25rem 0;
  box-shadow: 0 6px 25px rgba(0, 240, 255, 0.08);
}

.edge-case-box h2 {
  border-left: none;
  padding-left: 0;
  color: var(--accent-cyan);
  margin-top: 0;
  margin-bottom: 1rem;
}

.edge-case-box strong {
  color: var(--accent-cyan);
}

.edge-case-box ul {
  margin: 0.75rem 0 0.75rem 1.5rem;
  color: var(--text-main);
}

.edge-case-box li {
  margin-bottom: 0.5rem;
}

/* ─── SEMANTIC BRIDGES ─── */
.bridge-container {
  background: rgba(255, 214, 0, 0.05);
  border: 1px dashed rgba(255, 214, 0, 0.35);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  margin: 2.25rem 0;
}

.bridge-container p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.98rem;
}

.bridge-container a {
  font-weight: 700;
  color: var(--accent-volt);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ─── INTERACTIVE JS WAGERING CALCULATOR ─── */
.widget-box {
  background: var(--bg-card);
  border: 1px solid var(--border-volt);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  margin: 2.5rem 0;
  box-shadow: var(--volt-glow);
}

.calculator-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.calc-row {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.calc-row label {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-muted);
}

.calc-row input,
.calc-row select {
  background: var(--bg-base);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  color: #fff;
  font-size: 1rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.calc-row input:focus,
.calc-row select:focus {
  border-color: var(--accent-volt);
  box-shadow: 0 0 12px rgba(255, 214, 0, 0.3);
}

.calc-result {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  background: var(--bg-base);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin-top: 0.75rem;
}

.result-item {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.result-item .label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.result-item .value {
  font-size: 1.4rem;
  font-weight: 800;
  color: #fff;
}

.result-item .value.highlight {
  color: var(--accent-volt);
  text-shadow: 0 0 15px rgba(255, 214, 0, 0.4);
}

/* ─── GRIDS: INSTALL STEPS, CHECKLIST, TOOLS ─── */
.install-steps-grid,
.checklist-grid,
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin: 1.75rem 0;
}

.step-card,
.checklist-card,
.tool-card {
  background: var(--bg-card);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.step-card:hover,
.checklist-card:hover,
.tool-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-cyan);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.35);
}

.step-number {
  display: inline-block;
  background: var(--accent-volt);
  color: #0b0e14;
  font-weight: 900;
  font-size: 0.85rem;
  padding: 0.25rem 0.85rem;
  border-radius: 20px;
  margin-bottom: 0.85rem;
}

.step-card ol {
  margin: 0.75rem 0 0 1.25rem;
  color: var(--text-muted);
}

.step-card li {
  margin-bottom: 0.5rem;
}

/* ─── FAQ ACCORDIONS ─── */
.faq-section {
  margin: 3.5rem 0 1.5rem;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1.5rem;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.faq-item:hover {
  border-color: rgba(255, 255, 255, 0.15);
}

.faq-item summary {
  padding: 1.25rem 1.5rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--accent-cyan);
  line-height: 1;
  transition: transform 0.2s ease;
}

.faq-item[open] summary::after {
  content: "−";
  color: var(--accent-volt);
}

.faq-answer {
  padding: 0 1.5rem 1.25rem;
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.7;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.faq-answer p {
  margin-bottom: 0;
  color: var(--text-muted);
}

/* ─── SITE FOOTER ─── */
.site-footer {
  background: #080a0f;
  border-top: 1px solid var(--border-line);
  padding: 3.5rem 1.5rem 2rem;
  margin-top: auto;
}

.footer-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 2.5rem;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-top: 0.85rem;
}

.footer-links-col h3,
.footer-compliance-col h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-links-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-links-col a {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.footer-links-col a:hover {
  color: var(--accent-volt);
}

.footer-compliance-col p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 0.75rem;
}

.footer-bottom {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-dim);
}

/* ─── STICKY MOBILE CTA BAR ─── */
.sticky-mobile-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 999;
  background: rgba(11, 14, 20, 0.96);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid var(--border-volt);
  padding: 0.75rem 1.25rem;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.5);
}

.sticky-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.sticky-text {
  display: flex;
  flex-direction: column;
}

.sticky-title {
  font-weight: 800;
  font-size: 0.95rem;
  color: #fff;
}

.sticky-sub {
  font-size: 0.78rem;
  color: var(--accent-volt);
}

/* ─── RESPONSIVE BREAKPOINTS ─── */
@media (max-width: 900px) {
  .header-inner {
    flex-wrap: wrap;
    padding: 0.75rem 1rem;
    gap: 0.75rem;
  }

  .main-nav {
    order: 3;
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 0.25rem;
  }

  .nav-links {
    gap: 0.5rem;
    white-space: nowrap;
  }

  .nav-links a {
    font-size: 0.85rem;
    padding: 0.35rem 0.75rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    border: 1px solid var(--border-line);
  }

  .nav-links a.active {
    background: rgba(255, 214, 0, 0.15);
    border-color: var(--border-volt);
    border-bottom: 1px solid var(--border-volt);
  }

  .header-cta {
    margin-left: auto;
  }

  .hero-section,
  .cluster-hero {
    grid-template-columns: 1fr;
    padding: 1.75rem;
    gap: 1.75rem;
  }

  .hero-media,
  .cluster-hero-media {
    order: -1;
  }

  h1 {
    font-size: 2rem;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .sticky-mobile-bar {
    display: block;
  }

  body {
    padding-bottom: 75px;
  }
}

@media (max-width: 600px) {
  .pillar-container,
  .cluster-container {
    padding: 0 1rem;
  }

  .quick-facts-section {
    padding: 1.5rem 1.25rem;
  }

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

  .calc-result {
    grid-template-columns: 1fr;
  }
}