/* 1WIN Brand SEO Hub 2026 — Design System */
:root {
  --logo: #ffffff;
  --logo-accent: #e53e3e;
  --primary: #3b82f6;
  --primary-dark: #2563eb;
  --primary-cta: #22c55e;
  --primary-cta-dark: #16a34a;
  --primary-cta-glow: rgba(34, 197, 94, 0.4);
  --bg-base: #0a0e1a;
  --bg-card: rgba(15, 23, 42, 0.85);
  --bg-hero: radial-gradient(ellipse 140% 90% at 50% -10%, rgba(30, 58, 95, 0.9) 0%, rgba(15, 23, 42, 0.5) 45%, #0a0e1a 100%);
  --text: rgba(255,255,255,0.96);
  --text-muted: rgba(255,255,255,0.65);
  --card-bg: rgba(255,255,255,0.06);
  --card-border: rgba(255,255,255,0.12);
  --card-hover: rgba(255,255,255,0.08);
  --accent: #60a5fa;
  --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 3px rgba(0,0,0,0.2);
  --shadow-2: 0 4px 6px rgba(0,0,0,0.3);
  --shadow-3: 0 10px 15px rgba(0,0,0,0.35);
  --shadow-4: 0 20px 25px rgba(0,0,0,0.4);
  --shadow-5: 0 25px 50px rgba(0,0,0,0.5);
  --shadow-6: 0 35px 60px rgba(0,0,0,0.6);
  --font-system: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --text-xs: clamp(0.7rem, 2vw, 0.75rem);
  --text-sm: clamp(0.8rem, 2vw, 0.875rem);
  --text-base: clamp(0.95rem, 2.5vw, 1.05rem);
  --text-lg: clamp(1.1rem, 2.5vw, 1.25rem);
  --text-xl: clamp(1.25rem, 3vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 4vw, 2rem);
  --text-3xl: clamp(1.75rem, 5vw, 2.5rem);
  --line-tight: 1.35;
  --line-normal: 1.6;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { overflow-x: hidden; margin: 0; padding: 0; background: var(--bg-base); color: var(--text); font-family: var(--font-system); font-size: var(--text-base); line-height: var(--line-normal); -webkit-font-smoothing: antialiased; }
@supports (padding: max(0px, env(safe-area-inset-top))) { body { padding-top: max(0px, env(safe-area-inset-top)); padding-bottom: max(0px, env(safe-area-inset-bottom)); } }
body.nav-open { overflow: hidden; position: fixed; width: 100%; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; -webkit-tap-highlight-color: transparent; transition: color 0.2s; }
a:hover { text-decoration: underline; color: var(--primary-cta); }
a:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 2px; }

.payment-icon { width: 24px; height: 24px; object-fit: contain; display: inline-block; vertical-align: middle; }
.provider-icon { width: 24px; height: 24px; object-fit: contain; display: inline-block; vertical-align: middle; }
.ticker .payment-icon { width: 20px; height: 20px; }

.skip-link { position: absolute; left: -9999px; z-index: 999; padding: 0.75rem 1rem; background: var(--primary); color: white; border-radius: var(--r-md); }
.skip-link:focus { left: 1rem; top: 1rem; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 1rem; }
@media (min-width: 600px) { .container { padding: 0 1.5rem; } }
@media (min-width: 900px) { .container { padding: 0 2rem; } }

/* Header */
.header { position: sticky; top: 0; z-index: 100; background: rgba(10, 14, 26, 0.92); -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px); border-bottom: 1px solid var(--card-border); box-shadow: 0 1px 0 rgba(255,255,255,0.03); }
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 64px; padding: 0.6rem 1rem; }
.logo { display: flex; align-items: center; }
.logo img { height: 36px; width: auto; max-width: 140px; object-fit: contain; display: block; vertical-align: middle; }
@media (min-width: 600px) { .logo img { height: 40px; } }
.nav-desktop { display: none; }
@media (min-width: 900px) {
  .nav-desktop { display: flex; align-items: center; gap: 1.5rem; }
  .nav-desktop a { color: var(--text); opacity: 0.9; padding: 0.5rem 0; }
  .nav-desktop a:hover { opacity: 1; color: var(--primary-cta); text-decoration: none; }
}
.burger-btn { display: flex; flex-direction: column; justify-content: center; gap: 5px; width: 44px; height: 44px; padding: 10px; background: transparent; border: none; cursor: pointer; -webkit-tap-highlight-color: transparent; touch-action: manipulation; border-radius: var(--r-md); }
.burger-btn:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
@media (min-width: 900px) { .burger-btn { display: none; } }
.burger-btn span { display: block; width: 22px; height: 2px; background: var(--text); border-radius: 1px; transition: transform 0.3s, opacity 0.3s; }
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); }
.btn-cta { display: inline-flex; align-items: center; justify-content: center; min-width: 120px; min-height: 46px; padding: 0.7rem 1.5rem; background: linear-gradient(135deg, var(--primary-cta), var(--primary-cta-dark)); color: white !important; font-weight: 600; font-size: 1rem; border: none; border-radius: var(--r-lg); cursor: pointer; box-shadow: 0 4px 16px var(--primary-cta-glow); transition: transform 0.2s, box-shadow 0.2s, filter 0.2s; text-decoration: none !important; -webkit-tap-highlight-color: transparent; }
.btn-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 24px var(--primary-cta-glow); }
.btn-cta:focus-visible { outline: 2px solid white; outline-offset: 2px; }

/* Nav overlay */
.nav-overlay { display: flex; flex-direction: column; position: fixed; inset: 0; z-index: 200; background: rgba(10, 14, 26, 0.98); -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px); padding: 1rem; padding-top: max(1rem, env(safe-area-inset-top)); padding-bottom: max(1rem, env(safe-area-inset-bottom)); visibility: hidden; opacity: 0; pointer-events: none; transition: visibility 0.3s, opacity 0.3s; overflow: hidden; }
@media (max-width: 899px) { .nav-overlay { display: flex; } }
@media (min-width: 900px) { .nav-overlay { display: none; } }
body.nav-open .nav-overlay { visibility: visible; opacity: 1; pointer-events: auto; }
.nav-overlay-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; flex-shrink: 0; }
.nav-overlay-header .logo img { height: 32px; }
.nav-overlay-links { display: flex; flex-direction: column; gap: 0.5rem; flex: 1; min-height: 0; overflow-y: auto; padding-right: 0.25rem; }
.nav-overlay-links a { display: flex; align-items: center; padding: 1rem 1.25rem; background: var(--card-bg); border-radius: var(--r-md); color: var(--text); font-size: var(--text-lg); border: 1px solid var(--card-border); transition: background 0.2s, border-color 0.2s; min-height: 48px; -webkit-tap-highlight-color: transparent; }
.nav-overlay-links a:hover, .nav-overlay-links a:focus { background: rgba(255,255,255,0.08); border-color: var(--primary); text-decoration: none; }
.nav-overlay-links a:active { background: rgba(255,255,255,0.1); }
.nav-close { width: 48px; height: 48px; min-width: 48px; min-height: 48px; display: flex; align-items: center; justify-content: center; font-size: 1.75rem; line-height: 1; color: var(--text); background: transparent; border: none; cursor: pointer; -webkit-tap-highlight-color: transparent; touch-action: manipulation; flex-shrink: 0; }

/* Hero */
.hero { position: relative; padding: 2.5rem 1rem; background: var(--bg-hero); overflow: hidden; }
@media (min-width: 600px) { .hero { padding: 4rem 1rem; } }
.hero::before { content: ""; position: absolute; inset: 0; background-image: radial-gradient(circle at 25% 40%, rgba(59, 130, 246, 0.12) 0%, transparent 45%), radial-gradient(circle at 75% 30%, rgba(34, 197, 94, 0.08) 0%, transparent 45%); pointer-events: none; }
.hero h1 { font-size: var(--text-2xl); margin: 0 0 1.25rem; line-height: var(--line-tight); font-weight: 700; letter-spacing: -0.02em; }
.hero p { font-size: var(--text-base); color: var(--text-muted); max-width: 620px; margin: 0 0 1.75rem; line-height: 1.65; }

/* Ticker */
.ticker-wrap { overflow: hidden; background: linear-gradient(90deg, rgba(0,0,0,0.35) 0%, rgba(0,0,0,0.2) 50%, rgba(0,0,0,0.35) 100%); padding: 0.7rem 0; border-top: 1px solid var(--card-border); border-bottom: 1px solid var(--card-border); }
.ticker { display: flex; animation: ticker 40s linear infinite; width: max-content; will-change: transform; }
.ticker:hover { animation-play-state: paused; }
.ticker-item { display: flex; align-items: center; gap: 0.5rem; white-space: nowrap; padding: 0 1.25rem; color: var(--text-muted); font-size: var(--text-sm); flex-shrink: 0; }
@media (max-width: 479px) { .ticker-item { padding: 0 1rem; font-size: var(--text-xs); } .ticker .payment-icon { width: 16px; height: 16px; } }
@keyframes ticker { 0% { transform: translate3d(0, 0, 0); } 100% { transform: translate3d(-50%, 0, 0); } }

/* Sections */
section { padding: 2.5rem 0; }
section:nth-of-type(even) { background: rgba(0,0,0,0.18); }
h2 { font-size: var(--text-xl); margin: 0 0 1.25rem; padding-top: 0.25rem; font-weight: 600; letter-spacing: -0.01em; }
h2[id] { scroll-margin-top: 90px; }
h3 { font-size: var(--text-lg); margin: 1.75rem 0 0.75rem; font-weight: 600; }
p { margin: 0 0 1.1rem; line-height: 1.65; }

/* Cards */
.slot-cards, .comparison-cards, .payment-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 1rem; }
@media (min-width: 600px) { .slot-cards, .comparison-cards { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); } }
@media (max-width: 479px) { .slot-cards { grid-template-columns: repeat(2, 1fr); gap: 0.75rem; } .slot-card .slot-body { padding: 0.75rem; } .slot-card .slot-body h3 { font-size: var(--text-sm); } }
.slot-card, .comparison-card { background: var(--card-bg); border: 1px solid var(--card-border); border-radius: var(--r-lg); overflow: hidden; transition: transform 0.25s, box-shadow 0.25s, border-color 0.2s; }
.slot-card:hover, .comparison-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-4); border-color: rgba(255,255,255,0.18); }
.slot-card .slot-body .btn-cta, .comparison-card .card-body .btn-cta { margin-top: auto; font-size: var(--text-sm); padding: 0.5rem 1rem; min-height: 38px; }
.slot-card a, .comparison-card a { display: flex; flex-direction: column; height: 100%; color: inherit; text-decoration: none !important; }
.slot-card img, .comparison-card img { width: 100%; aspect-ratio: 16/10; object-fit: contain; padding: 0.75rem; background: rgba(0,0,0,0.25); }
.slot-card .slot-body, .comparison-card .card-body { padding: 1rem; flex: 1; display: flex; flex-direction: column; }
.slot-card .slot-body h3, .comparison-card .card-body h3 { margin: 0 0 0.25rem; }
.slot-card .slot-body p, .comparison-card .card-body p { margin: 0 0 0.5rem; flex: 1; }
.payment-grid { grid-template-columns: repeat(auto-fill, minmax(90px, 1fr)); gap: 0.75rem; }
@media (max-width: 479px) { .payment-grid { grid-template-columns: repeat(4, 1fr); min-width: 0; } .payment-grid .payment-item { padding: 0.75rem 0.5rem; font-size: var(--text-xs); } }
.payment-grid .payment-item { display: flex; flex-direction: column; align-items: center; gap: 0.5rem; padding: 1rem; background: var(--card-bg); border-radius: var(--r-md); border: 1px solid var(--card-border); min-width: 0; transition: border-color 0.2s, background 0.2s; }
.payment-grid .payment-item:hover { border-color: rgba(255,255,255,0.2); background: var(--card-hover); }

/* Tables */
.table-wrap { overflow-x: auto; margin: 1rem 0; padding-bottom: 0.5rem; }
@media (max-width: 599px) { .table-wrap { margin-left: -1rem; margin-right: -1rem; padding-left: 1rem; padding-right: 1rem; } table { min-width: 400px; font-size: var(--text-xs); } th, td { padding: 0.6rem 0.75rem; } }
table { width: 100%; min-width: 500px; border-collapse: collapse; font-size: var(--text-sm); }
th, td { padding: 0.75rem 1rem; text-align: left; border-bottom: 1px solid var(--card-border); }
thead th { position: sticky; top: 0; background: rgba(15, 23, 42, 0.98); z-index: 1; font-weight: 600; color: var(--text); }
tbody tr:hover { background: var(--card-bg); }

/* FAQ */
.faq-list { display: flex; flex-direction: column; gap: 0.5rem; }
.faq-item details { background: var(--card-bg); border: 1px solid var(--card-border); border-radius: var(--r-md); overflow: hidden; transition: border-color 0.2s; }
.faq-item summary { padding: 1rem 1.25rem; cursor: pointer; font-weight: 500; list-style: none; min-height: 44px; min-width: 44px; display: flex; align-items: center; -webkit-tap-highlight-color: transparent; touch-action: manipulation; transition: color 0.2s; }
.faq-item summary:hover { color: var(--accent); }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::before { content: "+"; margin-right: 0.75rem; font-weight: 700; font-size: 1.1em; color: var(--primary-cta); width: 1.2em; text-align: center; }
.faq-item[open] summary::before { content: "−"; }
.faq-item[open] { border-color: var(--primary); }
.faq-item summary:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.faq-item .faq-answer { padding: 0 1.25rem 1rem; color: var(--text-muted); }

/* Callout */
.callout { padding: 1.25rem 1.5rem; border-radius: var(--r-md); border-left: 4px solid; margin: 1.75rem 0; line-height: 1.6; }
.callout-tip { background: rgba(34, 197, 94, 0.12); border-color: var(--primary-cta); }
.callout-risk { background: rgba(239, 68, 68, 0.12); border-color: var(--danger); }
.callout-warning { background: rgba(245, 158, 11, 0.12); border-color: var(--warning); }

/* Checklist */
.checklist { list-style: none; padding: 0; margin: 1rem 0; }
.checklist li { position: relative; padding-left: 1.75rem; margin-bottom: 0.85rem; line-height: 1.55; }
.checklist li::before { content: "✓"; position: absolute; left: 0; color: var(--primary-cta); font-weight: 700; font-size: 1.1em; }

/* Footer */
.footer { background: rgba(0,0,0,0.4); border-top: 1px solid var(--card-border); padding: 2.5rem 0; margin-top: 4rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: 1.25rem; margin-bottom: 1.25rem; }
.footer-links a { color: var(--text-muted); transition: color 0.2s; }
.footer-links a:hover { color: var(--text); }
.footer-meta { font-size: var(--text-sm); color: var(--text-muted); line-height: 1.6; }
.author-block { font-size: var(--text-sm); color: var(--text-muted); margin-top: 2rem; padding-top: 1.25rem; border-top: 1px solid var(--card-border); line-height: 1.6; opacity: 0.9; }

/* Internal links block */
.internal-links { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 1rem; margin: 2rem 0; }
@media (max-width: 479px) { .internal-links { grid-template-columns: 1fr; } }
.internal-links a { display: flex; align-items: center; padding: 0.75rem 1rem; background: var(--card-bg); border-radius: var(--r-md); border: 1px solid var(--card-border); color: var(--text); min-height: 44px; transition: border-color 0.2s, background 0.2s; }
.internal-links a:hover { border-color: var(--primary); background: var(--card-hover); text-decoration: none; }