:root {
  --color-primary: #1a365d;
  --color-primary-dark: #0f2440;
  --color-primary-soft: #2a4a7f;
  --color-secondary: #fbbf24;
  --color-accent: #f59e0b;
  --color-bg: #f8fafc;
  --color-bg-soft: #f1f5f9;
  --color-surface: #ffffff;
  --color-surface-strong: #e2e8f0;
  --color-card: #ffffff;
  --color-card-alt: #f8fafc;
  --color-border: #e2e8f0;
  --color-border-strong: #cbd5e1;
  --color-text: #1e293b;
  --color-text-soft: #475569;
  --color-text-muted: #94a3b8;
  --color-success: #16a34a;
  --color-warning: #f59e0b;
  --color-danger: #dc2626;
  --color-footer-bg: #0f172a;
  --color-footer-text: #cbd5e1;
  --gradient-hero: linear-gradient(135deg, #0f2440 0%, #1a365d 50%, #2a4a7f 100%);
  --gradient-button: linear-gradient(135deg, #fbbf24, #f59e0b);
  --gradient-cta: linear-gradient(135deg, #1a365d, #2a4a7f);
  --shadow-header: 0 2px 12px rgba(0,0,0,0.08);
  --shadow-card: 0 2px 12px rgba(0,0,0,0.06);
  --shadow-card-hover: 0 8px 28px rgba(0,0,0,0.12);
  --shadow-button: 0 2px 8px rgba(0,0,0,0.15);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-card: 14px;
  --motion-fast: 0.15s;
  --motion-normal: 0.25s;
  --motion-slow: 0.4s;
  --header-h: 72px;
  --mobile-header-h: 64px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
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: 1rem; line-height: 1.75; 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 { max-width: 1200px; margin: 0 auto; padding: 0 clamp(16px, 4vw, 32px); }
.text-center { text-align: center; }
.mt-md { margin-top: 2rem; }
.mt-lg { margin-top: 3rem; }
.content-img { border-radius: var(--radius-lg); box-shadow: var(--shadow-card); width: 100%; height: auto; }

/* HEADER */
.site-header { position: sticky; top: 0; z-index: 1000; background: var(--color-primary-dark); 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(4px, .6vw, 12px); white-space: nowrap; overflow: visible; }
.primary-nav a { flex: 0 1 auto; min-width: 0; padding: 8px clamp(5px, .55vw, 10px); font-size: clamp(12.5px, .78vw, 14.5px); line-height: 1; white-space: nowrap; color: #e2e8f0; border-radius: var(--radius-sm); transition: background var(--motion-fast), color var(--motion-fast); }
.primary-nav a:hover, .primary-nav a.active { background: rgba(255,255,255,0.1); color: var(--color-secondary); }
.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; padding: 10px 18px; border-radius: var(--radius-sm); font-weight: 600; font-size: 0.9rem; cursor: pointer; transition: all var(--motion-fast); border: none; white-space: nowrap; text-decoration: none; min-height: 42px; }
.btn-primary { background: var(--gradient-button); color: var(--color-primary-dark); box-shadow: var(--shadow-button); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 4px 14px rgba(251,191,36,0.4); color: var(--color-primary-dark); }
.btn-outline { background: transparent; border: 2px solid var(--color-secondary); color: var(--color-secondary); }
.btn-outline:hover { background: var(--color-secondary); color: var(--color-primary-dark); }
.btn-lg { padding: 14px 28px; font-size: 1rem; }
.btn-block { width: 100%; }
.btn-register { background: var(--gradient-button); color: var(--color-primary-dark); font-size: 0.85rem; padding: 8px 14px; min-height: 38px; }
.btn-login { background: transparent; border: 1.5px solid rgba(255,255,255,0.4); color: #e2e8f0; font-size: 0.85rem; padding: 8px 14px; min-height: 38px; }
.btn-login:hover { border-color: var(--color-secondary); color: var(--color-secondary); }
.nav-toggle { display: none; flex: 0 0 40px; width: 40px; height: 40px; background: none; border: none; cursor: pointer; padding: 8px; position: relative; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: #e2e8f0; margin: 5px auto; transition: all var(--motion-fast); border-radius: 2px; }
.nav-toggle.is-active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.is-active span:nth-child(2) { opacity: 0; }
.nav-toggle.is-active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* MOBILE MENU */
.mobile-menu { position: fixed; top: var(--mobile-header-h); left: 0; right: 0; bottom: 0; background: var(--color-primary-dark); z-index: 999; transform: translateX(100%); transition: transform var(--motion-normal) ease; overflow-y: auto; padding: 20px; }
.mobile-menu.is-open { transform: translateX(0); }
.mobile-nav { display: flex; flex-direction: column; gap: 0; }
.mobile-nav a { padding: 14px 16px; color: #e2e8f0; font-size: 1rem; border-bottom: 1px solid rgba(255,255,255,0.1); }
.mobile-nav a:hover { color: var(--color-secondary); }

@media (max-width: 1180px) {
  .primary-nav { display: none; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .header-inner { min-height: var(--mobile-header-h); 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; gap: clamp(5px, 1.6vw, 8px); }
  .btn-login, .btn-register { min-height: 38px; padding: 7px clamp(10px, 2.6vw, 14px); font-size: clamp(12px, 3.2vw, 14px); }
  .nav-toggle { flex-basis: 40px; width: 40px; height: 40px; margin-left: 2px; }
}
@media (max-width: 375px) {
  .header-inner { padding-left: 8px; padding-right: 8px; gap: 6px; }
  .site-logo { max-width: 104px; }
  .btn-login, .btn-register { min-height: 36px; padding: 6px 9px; font-size: 12px; }
  .nav-toggle { flex-basis: 38px; width: 38px; height: 38px; }
}

/* SECTIONS */
.section-pad { padding: clamp(48px, 6vw, 80px) 0; }
.alt-bg { background: var(--color-bg-soft); }
h1 { font-size: clamp(1.6rem, 3.5vw, 2.5rem); font-weight: 700; line-height: 1.3; margin-bottom: 1rem; color: var(--color-text); }
h2 { font-size: clamp(1.3rem, 2.5vw, 2rem); font-weight: 700; line-height: 1.3; margin-bottom: 1rem; color: var(--color-primary-dark); }
h3 { font-size: clamp(1.1rem, 2vw, 1.5rem); font-weight: 600; line-height: 1.35; margin-bottom: 0.6rem; color: var(--color-text); }
.section-lead { color: var(--color-text-soft); font-size: 1.05rem; margin-bottom: 2rem; }

/* HERO */
.home-hero { background: var(--gradient-hero); color: #fff; padding: clamp(60px, 8vw, 100px) 0; position: relative; overflow: hidden; }
.home-hero h1 { color: #fff; }
.hero-split { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.hero-lead { font-size: 1.1rem; opacity: 0.9; margin-bottom: 2rem; line-height: 1.8; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-visual { position: relative; }
@media (max-width: 768px) {
  .hero-split { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
}

/* GAME HERO */
.game-hero { background: var(--gradient-hero); color: #fff; padding: clamp(40px, 6vw, 80px) 0; }
.game-hero h1 { color: #fff; font-size: clamp(1.4rem, 3vw, 2.2rem); }
.game-hero .hero-lead { color: rgba(255,255,255,0.85); }

/* PAGE HERO */
.page-hero-simple { background: var(--gradient-hero); color: #fff; padding: clamp(40px, 5vw, 60px) 0; }
.page-hero-simple h1 { color: #fff; }
.page-hero-simple .hero-lead { color: rgba(255,255,255,0.85); }
.policy-update { color: rgba(255,255,255,0.6); font-size: 0.9rem; margin-top: 0.5rem; }

/* AUTH PAGES */
.auth-hero { background: var(--gradient-hero); color: #fff; padding: clamp(40px, 5vw, 60px) 0; }
.auth-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.auth-form-card { background: var(--color-surface); padding: clamp(24px, 4vw, 40px); border-radius: var(--radius-lg); color: var(--color-text); }
.auth-form-card h1 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); color: var(--color-primary-dark); }
.auth-form-card h3 { color: var(--color-text-soft); font-size: 1rem; font-weight: 400; margin-bottom: 1.5rem; }
.auth-trust-card { padding: 20px 0; }
.auth-security-note { background: rgba(255,255,255,0.1); padding: 20px; border-radius: var(--radius-md); margin-top: 20px; }
.auth-security-note h3 { color: var(--color-secondary); }
.auth-security-note p { color: rgba(255,255,255,0.8); }
.form-group { margin-bottom: 1.2rem; }
.form-group label { display: block; font-weight: 600; margin-bottom: 0.4rem; font-size: 0.9rem; color: var(--color-text-soft); }
.form-group input { width: 100%; padding: 12px 16px; border: 1.5px solid var(--color-border); border-radius: var(--radius-sm); font-size: 1rem; transition: border-color var(--motion-fast); background: var(--color-bg); }
.form-group input:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(26,54,93,0.1); }
.auth-switch { text-align: center; margin-top: 1.2rem; color: var(--color-text-soft); }
@media (max-width: 768px) {
  .auth-layout { grid-template-columns: 1fr; }
}

/* TRUST STRIP */
.home-trust-strip { background: var(--color-primary-dark); padding: 30px 0; }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; }
.trust-num { display: block; font-size: clamp(1.8rem, 3vw, 2.5rem); font-weight: 700; color: var(--color-secondary); }
.trust-label { color: rgba(255,255,255,0.75); font-size: 0.9rem; }
@media (max-width: 640px) { .trust-grid { grid-template-columns: repeat(2, 1fr); } }

/* CONTENT SPLIT */
.content-split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(24px, 4vw, 48px); align-items: start; }
.content-split.reverse .content-visual { order: -1; }
.content-text p { margin-bottom: 1rem; color: var(--color-text-soft); line-height: 1.85; }
@media (max-width: 768px) {
  .content-split { grid-template-columns: 1fr; }
  .content-split.reverse .content-visual { order: 0; }
}

/* FEATURE CARDS */
.feature-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; }
.feature-card { background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius-card); padding: clamp(20px, 3vw, 32px); transition: box-shadow var(--motion-normal), transform var(--motion-normal); }
.feature-card:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-4px); }
.feature-icon { font-size: 2rem; margin-bottom: 1rem; }
.feature-card h3 { color: var(--color-primary-dark); font-size: 1.1rem; }
.feature-card p { color: var(--color-text-soft); font-size: 0.95rem; margin: 0; }

/* INFO GRID */
.info-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 16px; margin-bottom: 1.5rem; }
.info-card { background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 20px; text-align: center; }
.info-card h3 { font-size: 0.85rem; color: var(--color-text-muted); font-weight: 500; margin-bottom: 4px; }
.info-card p { font-size: 1.1rem; font-weight: 700; color: var(--color-primary-dark); margin: 0; }

/* STEPS */
.steps-list { max-width: 720px; margin: 0 auto; }
.step-item { display: flex; gap: 16px; align-items: flex-start; padding: 20px; background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius-card); margin-bottom: 16px; transition: box-shadow var(--motion-fast); }
.step-item:hover { box-shadow: var(--shadow-card); }
.step-num { min-width: 48px; height: 48px; border-radius: 50%; background: var(--color-primary); color: #fff; font-size: 1.3rem; font-weight: 700; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.step-body h3 { margin-bottom: 0.3rem; }
.step-body p { color: var(--color-text-soft); margin: 0; font-size: 0.95rem; }

/* TIER CARDS */
.tier-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 20px; }
.tier-card { background: var(--color-card); border: 2px solid var(--color-border); border-radius: var(--radius-lg); padding: 28px; text-align: center; }
.tier-card h3 { color: var(--color-primary-dark); }
.tier-points { color: var(--color-accent); font-weight: 700; font-size: 0.95rem; margin-bottom: 1rem; }
.tier-card ul { list-style: none; padding: 0; text-align: left; }
.tier-card li { padding: 6px 0; color: var(--color-text-soft); font-size: 0.9rem; border-bottom: 1px solid var(--color-bg-soft); }
.tier-silver { border-top: 3px solid #94a3b8; }
.tier-gold { border-top: 3px solid #fbbf24; }
.tier-platinum { border-top: 3px solid #6366f1; }
.tier-diamond { border-top: 3px solid #06b6d4; }

/* BENEFIT LIST */
.benefit-list { display: flex; flex-direction: column; gap: 20px; }
.benefit-item { background: var(--color-card); padding: 24px; border-radius: var(--radius-card); border-left: 4px solid var(--color-primary); }
.benefit-item h3 { margin-bottom: 0.4rem; }
.benefit-item p { color: var(--color-text-soft); margin: 0; }

/* COMPARE TABLE */
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.compare-table { width: 100%; border-collapse: collapse; background: var(--color-card); border-radius: var(--radius-md); overflow: hidden; }
.compare-table th { background: var(--color-primary-dark); color: #fff; padding: 14px 16px; font-weight: 600; text-align: center; font-size: 0.9rem; }
.compare-table td { padding: 12px 16px; text-align: center; border-bottom: 1px solid var(--color-border); font-size: 0.95rem; }
.compare-table td:first-child { text-align: left; font-weight: 500; }
.compare-note { color: var(--color-text-soft); font-size: 0.9rem; margin-top: 1.5rem; }

/* TESTIMONIALS */
.testimonial-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }
.testimonial-card { background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius-card); padding: 28px; position: relative; }
.testimonial-text { color: var(--color-text-soft); font-size: 0.95rem; margin-bottom: 1.2rem; line-height: 1.8; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.author-avatar { width: 44px; height: 44px; border-radius: 50%; background: var(--gradient-hero); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 1.1rem; flex-shrink: 0; }

/* GAME TAGS */
.game-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 1rem; }
.game-tag { display: inline-block; padding: 8px 16px; background: rgba(251,191,36,0.12); color: var(--color-primary-dark); border: 1px solid rgba(251,191,36,0.3); border-radius: var(--radius-sm); font-weight: 600; font-size: 0.9rem; transition: all var(--motion-fast); }
.game-tag:hover { background: var(--color-secondary); color: var(--color-primary-dark); }

/* PRIVACY NOTICE */
.privacy-notice { background: rgba(251,191,36,0.08); border-left: 4px solid var(--color-accent); border-radius: var(--radius-md); padding: clamp(20px, 3vw, 32px); }
.privacy-notice h2 { font-size: clamp(1.1rem, 2vw, 1.4rem); }

/* WARNING BOX */
.warning-box { background: #fef3c7; border: 1px solid #fbbf24; border-radius: var(--radius-md); padding: 20px; margin-top: 20px; }
.warning-box h3 { color: #92400e; font-size: 1rem; }
.warning-box p { color: #78350f; font-size: 0.93rem; margin: 0; }

/* RESPONSIBLE LIST */
.responsible-list { display: flex; flex-direction: column; gap: 16px; }
.responsible-item { background: var(--color-card); padding: 20px; border-radius: var(--radius-card); border: 1px solid var(--color-border); }
.responsible-item h3 { color: var(--color-primary-dark); margin-bottom: 0.3rem; }
.responsible-item p { color: var(--color-text-soft); margin: 0; }

/* FAQ */
.faq-list { max-width: 800px; }
.faq-item { border: 1px solid var(--color-border); border-radius: var(--radius-md); margin-bottom: 12px; overflow: hidden; background: var(--color-card); }
.faq-toggle { width: 100%; display: flex; justify-content: space-between; align-items: center; padding: 16px 20px; background: none; border: none; cursor: pointer; text-align: left; font-size: 1rem; font-weight: 600; color: var(--color-text); transition: background var(--motion-fast); }
.faq-toggle:hover { background: var(--color-bg-soft); }
.faq-icon { font-size: 1.4rem; color: var(--color-primary); flex-shrink: 0; margin-left: 12px; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height var(--motion-normal) ease; }
.faq-item.is-open .faq-answer { max-height: 500px; }
.faq-answer p { padding: 0 20px 16px; color: var(--color-text-soft); line-height: 1.8; }

/* RELATED GRID */
.related-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; }
.related-card { display: flex; align-items: center; justify-content: center; padding: 20px; background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius-md); font-weight: 600; color: var(--color-primary-dark); transition: all var(--motion-fast); text-align: center; }
.related-card:hover { border-color: var(--color-primary); box-shadow: var(--shadow-card); transform: translateY(-2px); color: var(--color-primary); }

/* CTA SECTION */
.cta-section { background: var(--gradient-cta); color: #fff; }
.cta-section h2 { color: #fff; }
.cta-section p { color: rgba(255,255,255,0.85); }
.cta-actions { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; margin-top: 1.5rem; }

/* BREADCRUMB */
.breadcrumb { padding: 12px 0; }
.breadcrumb ol { display: flex; flex-wrap: wrap; list-style: none; gap: 4px; font-size: 0.85rem; }
.breadcrumb li::after { content: "/"; margin-left: 4px; color: var(--color-text-muted); }
.breadcrumb li:last-child::after { display: none; }
.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb [aria-current] { color: var(--color-text-soft); }

/* AGE */
.age-badge { display: inline-block; background: var(--color-danger); color: #fff; font-weight: 700; font-size: 0.8rem; padding: 2px 8px; border-radius: 4px; }

/* POLICY BODY */
.policy-body { max-width: 820px; }
.policy-body p { line-height: 1.9; margin-bottom: 1rem; }
.tips-list { padding-left: 20px; }
.tips-list li { padding: 6px 0; color: var(--color-text-soft); }

/* 404 */
.error-section { padding: 100px 0; }
.error-section h1 { font-size: clamp(4rem, 10vw, 8rem); color: var(--color-primary); opacity: 0.3; }

/* FOOTER */
.site-footer { background: var(--color-footer-bg); color: var(--color-footer-text); padding: 50px 0 24px; }
.footer-inner { max-width: 1200px; margin: 0 auto; padding: 0 clamp(16px, 4vw, 32px); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: clamp(24px, 3vw, 40px); }
.footer-col h5 { color: var(--color-secondary); font-weight: 700; margin-bottom: 1rem; font-size: 1rem; }
.footer-col a { display: block; color: #94a3b8; font-size: 0.9rem; margin-bottom: 8px; transition: color var(--motion-fast); }
.footer-col a:hover { color: var(--color-secondary); }
.footer-brand p { font-size: 0.9rem; color: #94a3b8; line-height: 1.7; }
.footer-logo { height: 36px; width: auto; margin-bottom: 12px; }
.footer-contact { margin-top: 16px; }
.footer-contact p { color: #94a3b8; font-size: 0.9rem; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); margin-top: 32px; padding-top: 20px; text-align: center; }
.footer-bottom p { color: #64748b; font-size: 0.85rem; margin: 0; }
@media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }

/* FOCUS */
:focus-visible { outline: 3px solid var(--color-primary); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* BODY LOCK */
body.menu-open { overflow: hidden; }