/* ============================================
   4777bet Design System - Emerald Trust Gaming UI
   ============================================ */
:root {
  --color-primary: #06b6d4;
  --color-primary-dark: #0891b2;
  --color-primary-soft: rgba(6,182,212,0.12);
  --color-secondary: #8b5cf6;
  --color-accent: #22d3ee;
  --color-bg: #020617;
  --color-bg-soft: #0a0f1e;
  --color-surface: #0f172a;
  --color-surface-strong: #1e1b4b;
  --color-card: #0f172a;
  --color-card-alt: #1e1b4b;
  --color-border: rgba(6,182,212,0.12);
  --color-border-strong: rgba(6,182,212,0.25);
  --color-text: #e2e8f0;
  --color-text-soft: #94a3b8;
  --color-text-muted: #64748b;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  --color-footer-bg: #020617;
  --color-footer-text: #94a3b8;
  --gradient-hero: linear-gradient(135deg, #020617 0%, #0f172a 40%, #1e1b4b 100%);
  --gradient-button: linear-gradient(135deg, #06b6d4, #8b5cf6);
  --gradient-card: linear-gradient(135deg, rgba(6,182,212,0.08), rgba(139,92,246,0.08));
  --gradient-cta: linear-gradient(135deg, #06b6d4 0%, #8b5cf6 100%);
  --shadow-header: 0 2px 20px rgba(0,0,0,0.4);
  --shadow-card: 0 4px 24px rgba(0,0,0,0.2);
  --shadow-card-hover: 0 8px 32px rgba(6,182,212,0.15);
  --shadow-button: 0 2px 12px rgba(6,182,212,0.25);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-pill: 50px;
  --motion-fast: 0.15s;
  --motion-normal: 0.25s;
  --motion-slow: 0.4s;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --container-max: 1180px;
  --header-h: 72px;
  --fs-h1: clamp(1.8rem, 4vw, 2.6rem);
  --fs-h2: clamp(1.4rem, 3vw, 2rem);
  --fs-h3: clamp(1.1rem, 2vw, 1.4rem);
  --fs-body: 1.05rem;
  --lh-body: 1.8;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, "Noto Sans Bengali", sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--motion-fast); }
a:hover { color: var(--color-accent); }

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

/* ============= HEADER ============= */
.site-header {
  position: sticky; top: 0; z-index: 1000; width: 100%;
  background: rgba(2,6,23,0.97);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(12px);
  transition: box-shadow var(--motion-normal);
}
.site-header.scrolled { box-shadow: var(--shadow-header); }
.header-inner {
  width: 100%; max-width: none;
  padding-left: clamp(10px, 1.2vw, 20px);
  padding-right: clamp(10px, 1.2vw, 20px);
  min-height: var(--header-h);
  display: flex; align-items: center;
  gap: clamp(10px, 1vw, 18px);
}
.brand-wrap { flex: 0 0 auto; margin-right: clamp(4px, .8vw, 14px); }
.site-logo {
  display: block; width: auto;
  height: clamp(32px, 3vw, 42px);
  max-width: clamp(118px, 10vw, 168px);
  object-fit: contain;
}
.primary-nav {
  flex: 1 1 auto; min-width: 0;
  display: flex; align-items: center; justify-content: center;
  flex-wrap: nowrap; gap: clamp(6px, .72vw, 14px);
  white-space: nowrap; overflow: visible;
}
.primary-nav a {
  flex: 0 1 auto; min-width: 0;
  padding: 9px clamp(6px, .65vw, 12px);
  font-size: clamp(13px, .84vw, 15px);
  line-height: 1; white-space: nowrap;
  color: var(--color-text); font-weight: 500;
  border-radius: var(--radius-sm);
  transition: color var(--motion-fast), background var(--motion-fast);
}
.primary-nav a:hover, .primary-nav a.active { color: var(--color-primary); background: var(--color-primary-soft); }
.header-actions {
  flex: 0 0 auto; margin-left: auto;
  display: flex; align-items: center; justify-content: flex-end;
  gap: clamp(6px, .6vw, 10px); white-space: nowrap;
}
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 6px; font-weight: 600; border: none; cursor: pointer;
  border-radius: var(--radius-pill); text-decoration: none;
  transition: all var(--motion-normal) var(--ease-out);
  font-size: 14px; line-height: 1;
}
.btn-register {
  background: var(--gradient-button); color: #fff;
  padding: 10px 18px; min-height: 42px;
  box-shadow: var(--shadow-button);
}
.btn-register:hover { opacity: 0.9; transform: translateY(-1px); color: #fff; }
.btn-login {
  border: 2px solid var(--color-primary); color: var(--color-primary);
  background: transparent; padding: 8px 16px; min-height: 42px;
}
.btn-login:hover { background: var(--color-primary); color: var(--color-bg); }
.btn-primary-gradient {
  background: var(--gradient-button); color: #fff;
  padding: 12px 24px; min-height: 44px;
  box-shadow: var(--shadow-button);
}
.btn-primary-gradient:hover { opacity: 0.9; transform: translateY(-2px); color: #fff; }
.btn-outline-accent {
  border: 2px solid var(--color-primary); color: var(--color-primary);
  background: transparent; padding: 10px 22px; min-height: 44px;
}
.btn-outline-accent:hover { background: var(--color-primary); color: var(--color-bg); }
.btn-lg { padding: 14px 28px; font-size: 16px; min-height: 48px; }
.btn-full { width: 100%; }
.nav-toggle {
  display: none; flex: 0 0 40px; width: 40px; height: 40px;
  align-items: center; justify-content: center;
  background: transparent; border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm); cursor: pointer;
  flex-direction: column; gap: 5px; padding: 8px;
  margin-left: 2px;
}
.nav-toggle span {
  display: block; width: 20px; height: 2px;
  background: var(--color-text); border-radius: 2px;
  transition: transform var(--motion-normal);
}
.mobile-menu {
  display: none; position: fixed; left: 0; right: 0;
  top: var(--header-h); background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  max-height: calc(100vh - var(--header-h));
  overflow-y: auto; z-index: 999;
}
.mobile-menu.is-open { display: block; }
.mobile-nav { display: flex; flex-direction: column; padding: 12px 16px; }
.mobile-link {
  display: block; padding: 14px 12px; color: var(--color-text);
  font-size: 16px; font-weight: 500;
  border-bottom: 1px solid var(--color-border);
  transition: color var(--motion-fast), background var(--motion-fast);
}
.mobile-link:hover { color: var(--color-primary); background: var(--color-primary-soft); }

/* ============= BREADCRUMB ============= */
.breadcrumb-nav { max-width: var(--container-max); margin: 0 auto; padding: 16px 20px; }
.breadcrumb-list {
  display: flex; flex-wrap: wrap; gap: 4px; list-style: none;
  font-size: 14px; color: var(--color-text-soft);
}
.breadcrumb-item a { color: var(--color-primary); }
.breadcrumb-item + .breadcrumb-item::before { content: "›"; margin-right: 6px; color: var(--color-text-muted); }
.breadcrumb-item.active { color: var(--color-text-muted); }

/* ============= SECTIONS ============= */
section { padding: 60px 0; }
.section-header { text-align: center; margin-bottom: 40px; }
.section-divider {
  width: 60px; height: 4px; background: var(--gradient-button);
  border-radius: 2px; margin: 12px auto 0;
}

/* ============= TYPOGRAPHY ============= */
h1 { font-size: var(--fs-h1); font-weight: 700; line-height: 1.3; margin-bottom: 16px; }
h2 { font-size: var(--fs-h2); font-weight: 700; line-height: 1.3; margin-bottom: 16px; color: var(--color-primary); }
h3 { font-size: var(--fs-h3); font-weight: 600; line-height: 1.4; margin-bottom: 12px; color: var(--color-text); }
p { margin-bottom: 16px; color: var(--color-text-soft); }

/* ============= HERO ============= */
.home-hero { background: var(--gradient-hero); padding: 80px 0 60px; position: relative; overflow: hidden; }
.home-hero::before { content: ''; position: absolute; top: -80px; left: -80px; width: 400px; height: 400px; background: radial-gradient(circle, rgba(6,182,212,0.15) 0%, transparent 70%); pointer-events: none; }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--color-primary-soft); color: var(--color-primary);
  border: 1px solid var(--color-border-strong); border-radius: var(--radius-pill);
  padding: 6px 16px; font-size: 14px; font-weight: 600; margin-bottom: 16px;
}
.hero-lead { font-size: 1.1rem; color: var(--color-text-soft); max-width: 600px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.hero-visual .content-img { border-radius: var(--radius-lg); max-height: 380px; object-fit: cover; }

/* ============= FEATURE CARDS ============= */
.feature-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.feature-card {
  background: var(--color-card); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: 28px 20px; text-align: center;
  transition: transform var(--motion-normal), border-color var(--motion-normal);
}
.feature-card:hover { transform: translateY(-4px); border-color: var(--color-primary); box-shadow: var(--shadow-card-hover); }
.feature-icon {
  width: 56px; height: 56px; background: var(--gradient-button);
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px; font-size: 1.4rem; color: #fff;
}

/* ============= GAME CARDS ============= */
.game-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 28px; }
.game-card {
  background: var(--color-card); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: 24px; text-align: center;
  transition: transform var(--motion-normal), border-color var(--motion-normal);
  color: var(--color-text);
}
.game-card:hover { transform: translateY(-4px); border-color: var(--color-primary); color: var(--color-text); }
.game-card-icon { font-size: 2rem; color: var(--color-primary); margin-bottom: 12px; }
.game-card h3 { color: var(--color-primary); font-size: 1.1rem; }
.game-card p { font-size: 0.9rem; color: var(--color-text-soft); margin: 0; }

/* ============= STEP CARDS ============= */
.step-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 28px; }
.step-card {
  background: var(--color-card-alt); border: 1px solid rgba(139,92,246,0.2);
  border-radius: var(--radius-lg); padding: 24px; text-align: center;
}
.step-num {
  width: 48px; height: 48px; background: var(--gradient-button);
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; font-weight: 700; color: #fff; margin: 0 auto 12px;
}

/* ============= GUIDE GRID ============= */
.guide-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 36px; align-items: start; margin-bottom: 36px; }

/* ============= COMPARE TABLE ============= */
.compare-table-wrap { overflow-x: auto; margin: 20px 0; border-radius: var(--radius-md); }
.compare-table { width: 100%; border-collapse: collapse; }
.compare-table th { background: var(--color-surface-strong); color: var(--color-primary); padding: 14px 18px; text-align: left; font-weight: 600; }
.compare-table td { padding: 12px 18px; border-bottom: 1px solid var(--color-border); color: var(--color-text-soft); }
.compare-table tr:nth-child(even) td { background: rgba(15,23,42,0.5); }
.text-success { color: var(--color-success); }
.text-danger { color: var(--color-danger); }
.text-warning { color: var(--color-warning); }

/* ============= CTA BAND ============= */
.home-cta-band { background: var(--gradient-cta); padding: 50px 0; text-align: center; }
.home-cta-band h2 { color: #fff; }
.home-cta-band p { color: rgba(255,255,255,0.85); max-width: 550px; margin: 0 auto 24px; }
.home-cta-band .btn { background: #fff; color: var(--color-secondary); font-weight: 700; }
.home-cta-band .btn:hover { opacity: 0.9; color: var(--color-secondary); }

/* ============= IMAGE BREAK ============= */
.content-image-break { padding: 20px 0; }
.content-image-break .content-img { border-radius: var(--radius-lg); max-height: 320px; object-fit: cover; width: 100%; }

/* ============= FAQ ============= */
.home-faq h2 { text-align: center; }
.page-faq .faq-hero,
.page-faq h2 { text-align: center; }
.page-register h2 { text-align: center; }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); margin-bottom: 10px; overflow: hidden; }
.faq-toggle {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; background: var(--color-card-alt); color: var(--color-text);
  border: none; cursor: pointer; font-size: 1rem; font-weight: 600;
  text-align: left; gap: 12px;
  transition: background var(--motion-fast);
}
.faq-toggle:hover { background: var(--color-surface-strong); }
.faq-toggle i { color: var(--color-primary); transition: transform var(--motion-normal); flex-shrink: 0; }
.faq-toggle[aria-expanded="true"] i { transform: rotate(180deg); }
.faq-toggle[aria-expanded="true"] { background: var(--gradient-button); color: #fff; }
.faq-toggle[aria-expanded="true"] i { color: #fff; }
.faq-answer { display: none; padding: 16px 20px; background: var(--color-bg); }
.faq-answer.is-open { display: block; }
.faq-more { text-align: center; margin-top: 20px; }

/* ============= AUTH PAGES ============= */
.auth-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.auth-layout-login .auth-info-area { display: flex; flex-direction: column; gap: 16px; }
.auth-form { margin-top: 20px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-weight: 600; color: var(--color-text); margin-bottom: 6px; font-size: 14px; }
.form-group input {
  width: 100%; padding: 12px 16px; background: var(--color-surface);
  border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm);
  color: var(--color-text); font-size: 16px;
  transition: border-color var(--motion-fast), box-shadow var(--motion-fast);
}
.form-group input:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-soft); }
.form-group input::placeholder { color: var(--color-text-muted); }
.form-note { text-align: center; margin-top: 16px; color: var(--color-text-soft); font-size: 14px; }
.trust-card {
  background: var(--color-card); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: 24px; text-align: center;
}
.trust-card i { font-size: 2rem; color: var(--color-primary); margin-bottom: 12px; }

/* ============= POLICY PAGES ============= */
.policy-hero, .rg-hero, .about-hero, .offers-hero, .faq-hero { padding: 40px 0 20px; }
.policy-hero h1, .rg-hero h1, .about-hero h1, .offers-hero h1, .faq-hero h1 { font-size: var(--fs-h1); }

/* ============= GAME PAGES ============= */
.game-hero { background: var(--gradient-hero); padding: 40px 0; }
.game-hero-split { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 36px; align-items: center; }
.game-hero-lead { color: var(--color-text-soft); font-size: 1.05rem; margin-bottom: 20px; }
.game-hero-actions { margin-top: 20px; }
.game-hero-img .content-img { border-radius: var(--radius-lg); max-height: 320px; object-fit: cover; }

/* ============= CTA ACTIONS ============= */
.cta-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; justify-content: center; }
.game-final-cta, .offers-final-cta { text-align: center; background: var(--gradient-cta); padding: 40px 0; }
.game-final-cta .btn, .offers-final-cta .btn { background: #fff; color: var(--color-secondary); }

/* ============= ERROR PAGE ============= */
.error-section { text-align: center; padding: 100px 0; }
.error-section h1 { font-size: 3rem; color: var(--color-primary); }
.error-actions { display: flex; gap: 12px; justify-content: center; margin-top: 24px; }

/* ============= FOOTER ============= */
.site-footer { background: var(--color-footer-bg); border-top: 1px solid var(--color-border); padding: 50px 0 20px; }
.footer-inner { max-width: var(--container-max); margin: 0 auto; padding: 0 20px; }
.footer-grid { display: grid; grid-template-columns: 1.35fr 0.85fr 0.85fr 0.85fr; gap: 36px; }
.footer-brand { display: inline-flex; align-items: center; margin-bottom: 12px; }
.footer-brand img { width: auto; height: 42px; max-width: 168px; object-fit: contain; }
.footer-desc { color: var(--color-footer-text); font-size: 0.93rem; }
.footer-email { color: var(--color-footer-text); font-size: 0.9rem; margin-top: 12px; }
.footer-email i { color: var(--color-primary); margin-right: 6px; }
.footer-links-col h6 { color: var(--color-primary); font-weight: 700; margin-bottom: 12px; }
.footer-links-col a { display: block; color: var(--color-footer-text); margin-bottom: 8px; font-size: 0.93rem; transition: color var(--motion-fast); }
.footer-links-col a:hover { color: var(--color-primary); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.06); padding-top: 16px; margin-top: 28px; text-align: center; }
.footer-bottom p { color: var(--color-footer-text); font-size: 0.88rem; margin-bottom: 4px; }
.footer-age { font-size: 0.82rem !important; color: var(--color-text-muted) !important; }

/* ============= FOCUS & ACCESSIBILITY ============= */
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* ============= RESPONSIVE ============= */
@media (max-width: 1180px) {
  .primary-nav { display: none; }
  .nav-toggle { display: inline-flex; }
  .site-header .header-inner {
    width: 100%; max-width: none;
    padding-left: clamp(8px, 2.4vw, 14px);
    padding-right: clamp(8px, 2.4vw, 14px);
    justify-content: flex-start; gap: clamp(6px, 1.8vw, 10px);
  }
  .brand-wrap { flex: 0 1 auto; margin-right: 0; }
  .site-logo { height: clamp(30px, 8vw, 40px); max-width: clamp(104px, 27vw, 138px); }
  .header-actions {
    margin-left: auto; flex: 0 0 auto;
    display: flex; align-items: center; justify-content: flex-end;
    gap: clamp(5px, 1.6vw, 8px);
  }
  .header-actions .btn { min-height: 40px; padding-inline: clamp(10px, 2.6vw, 14px); font-size: clamp(12px, 3.2vw, 14px); }
  .nav-toggle { flex: 0 0 40px; width: 40px; height: 40px; }
}
@media (max-width: 900px) {
  .hero-grid, .game-hero-split, .guide-grid, .auth-layout { grid-template-columns: 1fr; }
  .feature-cards { grid-template-columns: repeat(2, 1fr); }
  .game-cards { grid-template-columns: repeat(2, 1fr); }
  .step-cards { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  section { padding: 40px 0; }
}
@media (max-width: 640px) {
  .feature-cards, .step-cards { grid-template-columns: 1fr; }
  .game-cards { grid-template-columns: 1fr; }
  h1 { font-size: 1.6rem; }
  h2 { font-size: 1.3rem; }
}
@media (max-width: 375px) {
  .site-header .header-inner { padding-left: 8px; padding-right: 8px; gap: 6px; }
  .site-logo { max-width: 104px; }
  .header-actions .btn { min-height: 38px; padding-inline: 9px; font-size: 12px; }
  .nav-toggle { flex-basis: 38px; width: 38px; height: 38px; }
  .container { padding: 0 12px; }
}