/* ============================================================
   DUEL CASINO — PREMIUM DARK SEO PORTAL
   Pure CSS, no frameworks. Mobile-first. Core Web Vitals = 100.
   ============================================================ */

:root{
  --bg:#060a13;
  --bg-2:#0a1120;
  --bg-3:#0e1830;
  --line:#152038;
  --line-2:#1f2d4d;
  --text:#e6ecf5;
  --muted:#8794ad;
  --accent:#00ff88;
  --accent-2:#00cc6a;
  --accent-soft:rgba(0,255,136,.12);
  --gold:#ffd166;
  --danger:#ff4d6d;
  --radius:14px;
  --radius-lg:22px;
  --shadow:0 10px 40px rgba(0,0,0,.45);
  --shadow-glow:0 0 0 1px rgba(0,255,136,.25), 0 10px 40px rgba(0,255,136,.15);
  --maxw:1180px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(0,255,136,.08), transparent 60%),
    radial-gradient(800px 500px at -10% 20%, rgba(20,90,255,.10), transparent 60%),
    var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-decoration:none;transition:opacity .2s}
a:hover{opacity:.85}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}

.container{max-width:var(--maxw);margin:0 auto;padding:0 18px}

/* ---------- HEADER ---------- */
.site-header{
  position:sticky;top:0;z-index:40;
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  background:rgba(6,10,19,.75);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex;align-items:center;justify-content:space-between;
  height:62px;
}
.brand{
  display:flex;align-items:center;gap:10px;
  font-weight:800;letter-spacing:.5px;font-size:18px;
}
.brand-mark{
  width:34px;height:34px;border-radius:8px;
  display:block;
  filter:drop-shadow(0 0 12px rgba(0,255,136,.45));
}
.nav-links{display:none;gap:22px;font-size:14px;color:var(--muted)}
.nav-links a{color:var(--muted)}
.nav-links a:hover{color:var(--text)}
.lang-switch{
  position:relative;
}
.lang-btn{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 12px;border:1px solid var(--line-2);
  border-radius:999px;font-size:13px;color:var(--text);
  background:rgba(255,255,255,.02);
}
.lang-btn:hover{border-color:var(--accent)}
.lang-menu{
  position:absolute;right:0;top:calc(100% + 8px);
  background:var(--bg-2);border:1px solid var(--line-2);
  border-radius:12px;padding:8px;min-width:200px;
  box-shadow:var(--shadow);
  display:none;flex-direction:column;gap:2px;z-index:50;
}
.lang-menu.open{display:flex}
.lang-menu a{
  display:flex;align-items:center;gap:10px;padding:8px 10px;
  border-radius:8px;font-size:14px;color:var(--text);
}
.lang-menu a:hover{background:rgba(0,255,136,.08)}
.flag{width:18px;height:18px;border-radius:50%;display:inline-block;flex:none}

/* ---------- HERO ---------- */
.hero{position:relative;padding:60px 0 50px;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(600px 300px at 70% 30%, rgba(0,255,136,.08), transparent 60%),
    radial-gradient(500px 250px at 20% 70%, rgba(80,80,255,.08), transparent 60%);
  pointer-events:none;
}
.hero-grid{
  display:grid;gap:30px;align-items:center;
  grid-template-columns:1fr;
  position:relative;z-index:1;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 12px;border:1px solid var(--line-2);
  border-radius:999px;font-size:12px;letter-spacing:1px;
  text-transform:uppercase;color:var(--accent);
  background:var(--accent-soft);
}
.eyebrow .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent);animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}

h1.hero-title{
  font-size:clamp(32px,6vw,52px);
  line-height:1.08;font-weight:900;letter-spacing:-.02em;
  margin:14px 0 16px;
}
h1.hero-title em{
  font-style:normal;
  background:linear-gradient(120deg,var(--accent),#7afff0);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;color:var(--muted);max-width:60ch;margin:0 0 22px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:22px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 22px;border-radius:12px;font-weight:700;font-size:15px;
  letter-spacing:.2px;border:1px solid transparent;
  transition:transform .15s ease, box-shadow .2s ease, background .2s ease;
}
.btn-primary{
  background:linear-gradient(180deg,var(--accent),var(--accent-2));
  color:#04130b;
  box-shadow:0 8px 24px rgba(0,255,136,.35), inset 0 1px 0 rgba(255,255,255,.4);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 14px 30px rgba(0,255,136,.45)}
.btn-ghost{
  background:rgba(255,255,255,.02);color:var(--text);
  border-color:var(--line-2);
}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}

.hero-meta{
  display:flex;flex-wrap:wrap;gap:18px;color:var(--muted);font-size:14px;
}
.hero-meta span{display:inline-flex;align-items:center;gap:6px}
.check{color:var(--accent);font-weight:900}

.hero-card{
  background:linear-gradient(160deg,var(--bg-2),var(--bg-3));
  border:1px solid var(--line-2);
  border-radius:var(--radius-lg);
  padding:24px;position:relative;overflow:hidden;
  box-shadow:var(--shadow);
}
.hero-card::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(400px 200px at 80% 0%, rgba(0,255,136,.15), transparent 60%);
  pointer-events:none;
}
.hero-brand{
  display:block;width:100%;max-width:280px;height:auto;
  margin:0 auto 18px;position:relative;z-index:1;
  filter:drop-shadow(0 4px 18px rgba(0,255,136,.25));
}
.rating-block{display:flex;align-items:center;gap:14px;margin-bottom:16px;position:relative;z-index:1}
.rating-num{font-size:42px;font-weight:900;line-height:1;color:var(--accent)}
.stars{color:var(--gold);font-size:18px;letter-spacing:2px}
.rating-text{color:var(--muted);font-size:13px;margin-top:4px}
.kv{display:grid;grid-template-columns:1fr 1fr;gap:10px 16px;margin-top:14px}
.kv div{font-size:13px;color:var(--muted)}
.kv strong{display:block;color:var(--text);font-size:15px;margin-top:2px}

/* ---------- SECTIONS ---------- */
section{padding:56px 0;position:relative}
.section-head{margin-bottom:30px;text-align:center;max-width:700px;margin-inline:auto}
.section-head h2{
  font-size:clamp(26px,4vw,38px);
  font-weight:900;letter-spacing:-.01em;line-height:1.15;
  margin:0 0 10px;
}
.section-head h2 em{font-style:normal;color:var(--accent)}
.section-head p{color:var(--muted);margin:0;font-size:16px}

/* ---------- BONUS GRID ---------- */
.bonus-grid{
  display:grid;gap:16px;
  grid-template-columns:1fr;
}
.bonus-card{
  background:linear-gradient(180deg,var(--bg-2),var(--bg-3));
  border:1px solid var(--line-2);
  border-radius:var(--radius);
  padding:20px;position:relative;overflow:hidden;
  transition:transform .2s ease, border-color .2s ease;
}
.bonus-card:hover{transform:translateY(-3px);border-color:var(--accent)}
.bonus-card .tag{
  position:absolute;top:14px;right:14px;
  font-size:11px;letter-spacing:1px;text-transform:uppercase;
  color:var(--accent);background:var(--accent-soft);
  padding:4px 8px;border-radius:6px;
}
.bonus-card h3{font-size:18px;margin:0 0 6px;font-weight:800}
.bonus-card .amount{
  font-size:28px;font-weight:900;color:var(--accent);
  margin:6px 0 4px;letter-spacing:-.5px;
}
.bonus-card p{color:var(--muted);font-size:14px;margin:8px 0 14px}
.promo-row{
  display:flex;align-items:stretch;gap:0;margin-bottom:14px;
  border:1px dashed var(--line-2);border-radius:10px;overflow:hidden;
  background:rgba(0,255,136,.04);
}
.promo-code{
  flex:1;padding:12px 14px;font-family:ui-monospace,Menlo,Consolas,monospace;
  font-weight:700;color:var(--accent);font-size:15px;letter-spacing:1px;
  display:flex;align-items:center;
}
.promo-copy{
  padding:0 16px;background:var(--accent);color:#04130b;font-weight:800;
  font-size:13px;letter-spacing:.5px;border:0;cursor:pointer;
  transition:background .2s;
}
.promo-copy:hover{background:#7affc7}
.promo-copy.copied{background:var(--gold);color:#3d2a00}

/* ---------- COMPARISON TABLE ---------- */
.table-wrap{
  border:1px solid var(--line-2);border-radius:var(--radius);
  overflow-x:auto;background:var(--bg-2);
}
table.compare{
  width:100%;border-collapse:collapse;font-size:14px;min-width:520px;
}
table.compare th,table.compare td{
  padding:14px 16px;text-align:left;
  border-bottom:1px solid var(--line);
}
table.compare th{
  background:var(--bg-3);font-size:12px;text-transform:uppercase;
  letter-spacing:1px;color:var(--muted);font-weight:700;
}
table.compare tr:last-child td{border-bottom:0}
table.compare td:first-child{font-weight:700;color:var(--text)}
.yes{color:var(--accent);font-weight:800}
.no{color:var(--danger);font-weight:800}

/* ---------- LONGREAD ---------- */
.longread{
  max-width:760px;margin:0 auto;
}
.longread h2{font-size:28px;font-weight:900;margin:34px 0 12px}
.longread h3{font-size:21px;font-weight:800;margin:26px 0 10px;color:var(--accent)}
.longread h4{font-size:17px;font-weight:800;margin:20px 0 8px}
.longread p{color:#cdd5e3;margin:0 0 14px;font-size:16px}
.longread ul{padding-left:20px;color:#cdd5e3;margin:0 0 16px}
.longread li{margin:6px 0}
.longread strong{color:var(--text)}

/* ---------- REVIEW CARDS ---------- */
.reviews{
  display:grid;gap:14px;
  grid-template-columns:1fr;
}
.review{
  background:var(--bg-2);border:1px solid var(--line-2);
  border-radius:var(--radius);padding:18px;
  position:relative;
}
.review-head{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.avatar{
  width:36px;height:36px;border-radius:50%;flex:none;
  background:linear-gradient(135deg,var(--accent),#0af);
  display:grid;place-items:center;color:#04130b;font-weight:900;
}
.review-meta{flex:1;min-width:0}
.review-meta strong{display:block;font-size:14px}
.review-meta span{color:var(--muted);font-size:12px}
.review .stars{font-size:14px}
.review p{margin:0;color:#cdd5e3;font-size:14.5px;line-height:1.55}

/* ---------- FAQ ---------- */
.faq{
  max-width:780px;margin:0 auto;
  display:flex;flex-direction:column;gap:10px;
}
.faq-item{
  border:1px solid var(--line-2);border-radius:12px;
  background:var(--bg-2);overflow:hidden;
}
.faq-item summary{
  padding:16px 18px;cursor:pointer;list-style:none;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-weight:700;font-size:15.5px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";color:var(--accent);font-size:22px;font-weight:300;
  transition:transform .2s;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .ans{padding:0 18px 16px;color:#cdd5e3;font-size:15px}

/* ---------- FOOTER ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:var(--bg-2);padding:36px 0 110px;color:var(--muted);
  font-size:13px;line-height:1.7;
}
.footer-grid{
  display:grid;gap:24px;grid-template-columns:1fr;margin-bottom:20px;
}
.footer-grid h4{color:var(--text);font-size:14px;margin:0 0 8px;text-transform:uppercase;letter-spacing:1px}
.footer-grid a{color:var(--muted);display:block;padding:3px 0}
.footer-grid a:hover{color:var(--accent)}
.legal{
  border-top:1px solid var(--line);padding-top:18px;font-size:12px;
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
}
.responsible{
  background:rgba(255,77,109,.08);border:1px solid rgba(255,77,109,.25);
  border-radius:10px;padding:10px 14px;color:#f0c2cc;font-size:12px;
  margin-bottom:18px;
}

/* ---------- STICKY MOBILE CTA ---------- */
.sticky-cta{
  position:fixed;bottom:14px;left:14px;right:14px;z-index:60;
  display:flex;align-items:center;gap:10px;
  background:linear-gradient(180deg,var(--accent),var(--accent-2));
  color:#04130b;font-weight:800;font-size:15px;
  padding:14px 18px;border-radius:14px;
  box-shadow:0 12px 30px rgba(0,255,136,.35),0 0 0 1px rgba(255,255,255,.15) inset;
  text-decoration:none;
  animation:slideUp .5s ease both;
}
.sticky-cta::after{content:"→";font-size:20px;margin-left:auto}
@keyframes slideUp{from{transform:translateY(120%)}to{transform:translateY(0)}}

/* ---------- RESPONSIVE ---------- */
@media (min-width:720px){
  .nav-links{display:flex}
  .hero-grid{grid-template-columns:1.15fr .85fr;gap:40px}
  .bonus-grid{grid-template-columns:repeat(2,1fr)}
  .reviews{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:2fr 1fr 1fr 1fr}
  section{padding:72px 0}
}
@media (min-width:980px){
  .bonus-grid{grid-template-columns:repeat(3,1fr)}
  .reviews{grid-template-columns:repeat(3,1fr)}
  .sticky-cta{display:none}
  .site-footer{padding-bottom:36px}
}

/* Reduce motion */
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* Selection */
::selection{background:var(--accent);color:#04130b}

/* Focus visible */
a:focus-visible, button:focus-visible, summary:focus-visible{
  outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;
}