/* VODKA Brand SEO Hub — Design System 2026 */
:root {
  --logo: #ffffff;
  --logo-accent: #e53e3e;
  --primary: #3b82f6;
  --primary-dark: #2563eb;
  --primary-cta: #22c55e;
  --primary-cta-dark: #16a34a;
  --bg-base: #0a0e1a;
  --bg-base-alt: #0f172a;
  --bg-card: rgba(15, 23, 42, 0.8);
  --bg-card-alt: rgba(30, 41, 59, 0.6);
  --accent: #60a5fa;
  --text: rgba(255, 255, 255, 0.94);
  --text-muted: rgba(255, 255, 255, 0.58);
  --card-bg: rgba(255, 255, 255, 0.04);
  --card-border: rgba(255, 255, 255, 0.08);
  --danger: #ef4444;
  --warning: #f59e0b;
  
  --r-xs: 4px;
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 14px;
  --r-xl: 20px;
  --r-2xl: 28px;
  
  --shadow-1: 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-2: 0 4px 6px rgba(0, 0, 0, 0.25);
  --shadow-3: 0 10px 15px rgba(0, 0, 0, 0.3);
  --shadow-4: 0 20px 25px rgba(0, 0, 0, 0.35);
  --shadow-5: 0 25px 50px rgba(0, 0, 0, 0.45);
  --shadow-6: 0 30px 60px rgba(0, 0, 0, 0.55);
  --shadow-cta: 0 4px 14px rgba(34, 197, 94, 0.35);
  
  --font-system: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --text-xs: clamp(0.7rem, 1.5vw, 0.75rem);
  --text-sm: clamp(0.8rem, 1.5vw, 0.875rem);
  --text-base: clamp(0.95rem, 1.5vw, 1.0625rem);
  --text-lg: clamp(1rem, 2vw, 1.125rem);
  --text-xl: clamp(1.125rem, 2vw, 1.25rem);
  --text-2xl: clamp(1.25rem, 2.5vw, 1.5rem);
  --text-3xl: clamp(1.5rem, 3vw, 1.875rem);
  --line-tight: 1.35;
  --line-normal: 1.6;
}

*, *::before, *::after { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}
body {
  margin: 0;
  max-width: 100%;
  overflow-x: hidden;
  font-family: var(--font-system);
  font-size: var(--text-base);
  line-height: var(--line-normal);
  color: var(--text);
  background: var(--bg-base);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }

.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  padding: 0.5rem 1rem;
  background: var(--primary-cta);
  color: #000;
  border-radius: var(--r-sm);
  z-index: 1000;
  transition: top 0.2s;
}
.skip-link:focus { top: 1rem; }

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  min-height: 56px;
  background: rgba(10, 14, 26, 0.85);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--card-border);
}
.logo {
  font-weight: 700;
  font-size: var(--text-xl);
  color: var(--logo);
  flex-shrink: 0;
  white-space: nowrap;
}
.logo span { color: var(--logo-accent); }
.nav-desktop {
  display: none;
  margin: 0;
  padding: 0;
}
.nav-desktop ul {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-desktop a {
  color: var(--text);
  text-decoration: none;
  font-size: var(--text-sm);
}
.nav-desktop a:hover { color: var(--accent); }
.header-cta {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-shrink: 0;
}
.btn-signup {
  padding: 0.5rem 1.25rem;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  border: none;
  border-radius: var(--r-md);
  font-weight: 600;
  font-size: var(--text-sm);
  cursor: pointer;
  box-shadow: var(--shadow-2);
  text-decoration: none;
  transition: transform 0.15s, box-shadow 0.15s;
}
.btn-signup:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 12px rgba(59, 130, 246, 0.4);
}
.btn-play {
  padding: 0.5rem 1.25rem;
  background: linear-gradient(135deg, var(--primary-cta) 0%, var(--primary-cta-dark) 100%);
  color: #000;
  border: none;
  border-radius: var(--r-md);
  font-weight: 600;
  font-size: var(--text-sm);
  cursor: pointer;
  box-shadow: var(--shadow-cta);
  text-decoration: none;
  transition: transform 0.15s, box-shadow 0.15s;
}
.btn-play:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(34, 197, 94, 0.45);
}

/* Burger */
.burger-btn {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text);
}
.burger-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
  transition: transform 0.2s, opacity 0.2s;
}
body.nav-open .burger-btn span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
body.nav-open .burger-btn span:nth-child(2) { opacity: 0; }
body.nav-open .burger-btn span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (min-width: 900px) {
  .burger-btn { display: none; }
  .nav-desktop { display: block; }
  .header { padding: 0.75rem 1.5rem; gap: 1rem; }
  .header-cta { gap: 0.75rem; }
}

/* Nav overlay */
.nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: rgba(10, 14, 26, 0.98);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  padding: 2rem;
  transform: translateX(-100%);
  opacity: 0;
  visibility: hidden;
  transition: transform 0.3s, opacity 0.3s, visibility 0.3s;
}
body.nav-open .nav-overlay {
  transform: translateX(0);
  opacity: 1;
  visibility: visible;
}
.nav-overlay-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}
.nav-overlay-close {
  width: 44px;
  height: 44px;
  padding: 0;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
  line-height: 1;
}
.nav-overlay-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-overlay-links a {
  display: block;
  padding: 1rem;
  color: var(--text);
  font-size: var(--text-lg);
  border-radius: var(--r-md);
  transition: background 0.2s, transform 0.2s;
}
.nav-overlay-links a:hover {
  background: var(--card-bg);
  transform: translateX(4px);
  color: var(--accent);
}

@media (min-width: 900px) {
  .nav-overlay { display: none; }
}

/* Hero */
.hero {
  position: relative;
  padding: 4rem 1.5rem;
  background: 
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(59, 130, 246, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse 100% 100% at 50% 50%, #0f172a 0%, #0a0e1a 100%);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(1px 1px at 20% 30%, rgba(255,255,255,0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 60% 70%, rgba(255,255,255,0.3) 0%, transparent 100%),
    radial-gradient(1px 1px at 80% 20%, rgba(255,255,255,0.35) 0%, transparent 100%);
  background-size: 200px 200px;
  opacity: 0.4;
  pointer-events: none;
}
.hero-content {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}
.hero h1 {
  margin: 0 0 1rem;
  font-size: var(--text-3xl);
  line-height: var(--line-tight);
  font-weight: 700;
}
.hero-bonus {
  display: inline-flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
  margin: 1.5rem 0;
  max-width: 100%;
}
.hero-bonus span {
  padding: 0.5rem 1rem;
  background: rgba(34, 197, 94, 0.15);
  color: var(--primary-cta);
  border-radius: var(--r-md);
  font-weight: 600;
  font-size: var(--text-lg);
}

/* Ticker */
.ticker-wrap {
  overflow: hidden;
  width: 100%;
  max-width: 100%;
  padding: 0.75rem 0;
  border-top: 1px solid var(--card-border);
  border-bottom: 1px solid var(--card-border);
  background: rgba(0, 0, 0, 0.2);
}
.ticker {
  display: flex;
  gap: 1.5rem;
  width: max-content;
  animation: ticker 40s linear infinite;
}
.ticker:hover { animation-play-state: paused; }
@keyframes ticker {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.ticker-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-size: var(--text-sm);
  white-space: nowrap;
}
.payment-icon {
  width: 24px;
  height: 24px;
  object-fit: contain;
  display: inline-block;
  vertical-align: middle;
}
.ticker .payment-icon { width: 20px; height: 20px; }
.provider-icon {
  width: 24px;
  height: 24px;
  object-fit: contain;
  display: inline-block;
  vertical-align: middle;
}

/* Main */
.main {
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

/* Layout with sidebar */
.layout-sidebar {
  display: grid;
  gap: 2rem;
  min-width: 0;
}
.main-content { min-width: 0; }
@media (min-width: 900px) {
  .layout-sidebar { grid-template-columns: 1fr 240px; }
  .toc-sidebar { position: sticky; top: 6rem; align-self: start; }
}

.toc-nav {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 2px solid var(--card-border);
  padding-left: 1rem;
}
.toc-nav a {
  display: block;
  padding: 0.35rem 0;
  color: var(--text-muted);
  font-size: var(--text-sm);
  text-decoration: none;
  transition: color 0.2s;
}
.toc-nav a:hover, .toc-nav a.is-active { color: var(--accent); }

/* Typography */
h2 {
  margin: 2.5rem 0 1rem;
  padding-bottom: 0.5rem;
  font-size: var(--text-2xl);
  border-bottom: 1px solid var(--card-border);
  scroll-margin-top: 5rem;
}
h3 { margin: 1.5rem 0 0.75rem; font-size: var(--text-xl); }
h4 { margin: 1rem 0 0.5rem; font-size: var(--text-lg); }
p { margin: 0 0 1rem; overflow-wrap: break-word; }
ul, ol { margin: 0 0 1rem; padding-left: 1.5rem; }
pre, code { overflow-x: auto; max-width: 100%; }

/* Checklist */
.checklist { list-style: none; padding-left: 0; }
.checklist li {
  position: relative;
  padding-left: 1.75rem;
  margin-bottom: 0.5rem;
}
.checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--primary-cta);
  font-weight: bold;
}

/* Callout */
.callout {
  padding: 1rem 1.25rem;
  margin: 1rem 0;
  border-radius: var(--r-md);
  border-left: 4px solid;
}
.callout-tip {
  background: rgba(34, 197, 94, 0.1);
  border-color: var(--primary-cta);
}
.callout-risk {
  background: rgba(239, 68, 68, 0.1);
  border-color: var(--danger);
}
.callout-warning {
  background: rgba(245, 158, 11, 0.1);
  border-color: var(--warning);
}

/* Tables */
.table-wrap {
  overflow-x: auto;
  margin: 1rem 0;
}
table {
  width: 100%;
  min-width: 500px;
  border-collapse: collapse;
}
thead th {
  position: sticky;
  top: 0;
  background: var(--bg-base-alt);
  padding: 0.75rem 1rem;
  text-align: left;
  font-weight: 600;
  font-size: var(--text-sm);
  border-bottom: 2px solid var(--card-border);
}
td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--card-border);
  font-size: var(--text-sm);
}
tr:hover td { background: var(--card-bg); }

/* FAQ */
.faq-item {
  border: 1px solid var(--card-border);
  border-radius: var(--r-md);
  margin-bottom: 0.5rem;
  overflow: hidden;
}
.faq-item summary {
  padding: 1rem 1.25rem;
  cursor: pointer;
  font-weight: 500;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-size: 1.25rem;
  font-weight: 300;
  flex-shrink: 0;
}
.faq-item[open] summary::after { content: "−"; }
.faq-item[open] { border-color: var(--accent); }
.faq-item .faq-answer {
  padding: 0 1.25rem 1rem;
  color: var(--text-muted);
  font-size: var(--text-sm);
}

/* Slot cards */
.slot-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin: 1.5rem 0;
}
.slot-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}
.slot-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-4);
}
.slot-card-image {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: contain;
  object-position: center;
  display: block;
  background: rgba(0, 0, 0, 0.2);
}
.slot-card-body {
  padding: 1rem 1.25rem;
}
.slot-card-title {
  margin: 0 0 0.5rem;
  font-size: var(--text-lg);
  font-weight: 600;
}
.slot-card-desc {
  margin: 0 0 1rem;
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: 1.5;
}
.slot-card .btn-play {
  display: inline-block;
}

/* Provider grid */
.provider-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 0.75rem;
  margin: 1.25rem 0;
}
.provider-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 0.75rem;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--r-md);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.provider-item:hover {
  border-color: rgba(96, 165, 250, 0.3);
  box-shadow: var(--shadow-2);
}
.provider-item img {
  width: 48px;
  height: 32px;
  object-fit: contain;
  filter: brightness(1.05);
}
.provider-item span {
  font-size: var(--text-xs);
  color: var(--text-muted);
  text-align: center;
  line-height: 1.25;
}

/* Payment grid */
.payment-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 0.75rem;
  margin: 1.25rem 0;
}
.payment-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  padding: 0.85rem 0.6rem;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--r-md);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.payment-item:hover {
  border-color: rgba(96, 165, 250, 0.3);
  box-shadow: var(--shadow-2);
}
.payment-item img {
  width: 40px;
  height: 28px;
  object-fit: contain;
  filter: brightness(1.05);
}
.payment-item span {
  font-size: var(--text-xs);
  color: var(--text-muted);
  text-align: center;
  line-height: 1.2;
}

/* Comparison cards */
.comparison-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}
.comparison-card {
  display: block;
  padding: 1.25rem;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--r-lg);
  transition: transform 0.2s, box-shadow 0.2s;
  color: var(--text);
  text-decoration: none;
}
.comparison-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-3);
  color: var(--accent);
  border-color: rgba(96, 165, 250, 0.3);
}
.comparison-card:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* Footer */
.footer {
  margin-top: 3rem;
  padding: 2rem 1rem;
  border-top: 1px solid var(--card-border);
  text-align: center;
  font-size: var(--text-sm);
  color: var(--text-muted);
  max-width: 100%;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  padding: 0 0.5rem;
}
.footer-links a { color: var(--text-muted); }
.footer-links a:hover { color: var(--accent); }

/* Author block */
.author-block {
  margin-top: 2rem;
  padding: 1rem;
  font-size: var(--text-sm);
  color: var(--text-muted);
  border-top: 1px solid var(--card-border);
}

/* CTA block */
.cta-block {
  margin: 2rem 0;
  padding: 1.5rem;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.15) 0%, rgba(34, 197, 94, 0.1) 100%);
  border-radius: var(--r-lg);
  border: 1px solid var(--card-border);
  text-align: center;
}

/* Touch targets & accessibility */
.btn-play, .btn-signup {
  min-height: 44px;
  min-width: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.btn-play:focus-visible, .btn-signup:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.burger-btn:focus-visible, .nav-overlay-close:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* Mobile */
@media (max-width: 768px) {
  .hero h1 { font-size: var(--text-2xl); word-wrap: break-word; hyphens: auto; }
  .slot-cards { grid-template-columns: 1fr; gap: 1.25rem; }
  .layout-sidebar { gap: 1.5rem; }
}
@media (max-width: 480px) {
  .header {
    padding: 0.5rem 0.75rem;
    gap: 0.35rem;
  }
  .logo { font-size: 1rem; }
  .btn-play, .btn-signup {
    padding: 0.4rem 0.75rem;
    font-size: 0.8rem;
    min-width: auto;
  }
  .hero { padding: 3rem 1rem; padding-top: max(3rem, env(safe-area-inset-top)); }
  .main { padding: 1.5rem 1rem; padding-bottom: max(2rem, env(safe-area-inset-bottom)); }
  .table-wrap {
    margin-left: -1rem;
    margin-right: -1rem;
    padding: 0 1rem;
    overflow-x: auto;
  }
  table { min-width: 320px; }
  .provider-grid { grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); gap: 0.5rem; }
  .provider-item { padding: 0.75rem 0.5rem; }
  .provider-item img { width: 40px; height: 28px; }
  .payment-grid { grid-template-columns: repeat(auto-fill, minmax(88px, 1fr)); gap: 0.5rem; }
  .payment-item { padding: 0.6rem 0.5rem; }
  .payment-item img { width: 36px; height: 24px; }
  .comparison-cards { grid-template-columns: 1fr; }
  .nav-overlay-links a { min-height: 48px; display: flex; align-items: center; }
  .faq-item summary { min-height: 48px; padding: 1rem 1.25rem; }
}