:root {
  --color-primary: #1a3a5c;
  --color-primary-dark: #0f2940;
  --color-primary-soft: #2a5a8c;
  --color-secondary: #f0c040;
  --color-accent: #e8a020;
  --color-bg: #f8f6f3;
  --color-bg-soft: #f0ede8;
  --color-surface: #ffffff;
  --color-surface-strong: #f5f3f0;
  --color-card: #ffffff;
  --color-card-alt: #faf8f5;
  --color-border: #e0dcd5;
  --color-border-strong: #c8c2b8;
  --color-text: #1c1917;
  --color-text-soft: #44403c;
  --color-text-muted: #78716c;
  --color-success: #16a34a;
  --color-warning: #f59e0b;
  --color-danger: #dc2626;
  --color-footer-bg: #1a1a2e;
  --color-footer-text: #d5d0c8;
  --gradient-hero: linear-gradient(135deg, #1a3a5c 0%, #0f2940 60%, #162d4a 100%);
  --gradient-button: linear-gradient(135deg, #f0c040, #e8a020);
  --gradient-cta: linear-gradient(135deg, #1a3a5c, #2a5a8c);
  --shadow-header: 0 2px 12px rgba(26,58,92,0.08);
  --shadow-card: 0 4px 16px rgba(0,0,0,0.06);
  --shadow-card-hover: 0 8px 28px rgba(0,0,0,0.12);
  --shadow-button: 0 2px 8px rgba(0,0,0,0.1);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-card: 14px;
  --radius-image: 12px;
  --fs-h1: clamp(28px, 4vw, 48px);
  --fs-h2: clamp(22px, 3vw, 36px);
  --fs-h3: clamp(18px, 2.2vw, 26px);
  --fs-body: 17px;
  --fs-small: 14px;
  --lh-body: 1.85;
  --lh-heading: 1.25;
  --section-y: clamp(48px, 6vw, 80px);
  --container-max: 1140px;
  --header-h: 72px;
  --motion-normal: 0.3s;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::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); line-height: var(--lh-body); font-size: var(--fs-body); overflow-x: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--motion-normal); }
a:hover { color: var(--color-accent); }
:focus-visible { outline: 3px solid var(--color-secondary); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; } }

/* HEADER */
.site-header { position: sticky; top: 0; z-index: 1000; background: var(--color-surface); transition: box-shadow var(--motion-normal); }
.site-header.scrolled { box-shadow: var(--shadow-header); }
.header-inner { width: 100%; max-width: none; padding: 0 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); display: flex; align-items: center; }
.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-soft); font-weight: 500; border-radius: var(--radius-sm); transition: all var(--motion-normal); }
.primary-nav a:hover { color: var(--color-primary); background: var(--color-bg-soft); }
.primary-nav a.active { color: var(--color-primary); font-weight: 700; background: rgba(26,58,92,0.06); }
.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; }
.nav-toggle { display: none; flex: 0 0 40px; width: 40px; height: 40px; align-items: center; justify-content: center; background: none; border: 1px solid var(--color-border); border-radius: var(--radius-sm); cursor: pointer; font-size: 22px; color: var(--color-text); }

/* BUTTONS */
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 10px 20px; border-radius: var(--radius-sm); font-weight: 600; font-size: 14px; cursor: pointer; border: none; transition: all var(--motion-normal); white-space: nowrap; min-height: 42px; text-decoration: none; }
.btn-login { background: transparent; color: var(--color-primary); border: 1.5px solid var(--color-primary); }
.btn-login:hover { background: var(--color-primary); color: #fff; }
.btn-register { background: var(--gradient-button); color: var(--color-primary-dark); font-weight: 700; box-shadow: var(--shadow-button); }
.btn-register:hover { transform: translateY(-1px); box-shadow: var(--shadow-card-hover); }
.btn-hero-primary { background: var(--gradient-button); color: var(--color-primary-dark); font-weight: 700; padding: 14px 32px; font-size: 16px; border-radius: var(--radius-md); box-shadow: var(--shadow-button); }
.btn-hero-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-card-hover); }
.btn-hero-secondary { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.6); padding: 14px 32px; font-size: 16px; border-radius: var(--radius-md); }
.btn-hero-secondary:hover { background: rgba(255,255,255,0.1); border-color: #fff; }
.btn-section-cta { background: var(--color-primary); color: #fff; padding: 12px 28px; border-radius: var(--radius-md); }
.btn-section-cta:hover { background: var(--color-primary-dark); color: #fff; transform: translateY(-1px); }
.btn-full { width: 100%; }

/* MOBILE MENU */
.mobile-menu { display: none; position: fixed; left: 0; right: 0; top: var(--header-h); background: var(--color-surface); z-index: 999; max-height: calc(100vh - var(--header-h)); overflow-y: auto; box-shadow: 0 8px 32px rgba(0,0,0,0.12); }
.mobile-menu.is-open { display: block; }
.mobile-menu-inner { padding: 16px; display: flex; flex-direction: column; gap: 4px; }
.mobile-menu-inner a { display: block; padding: 14px 16px; font-size: 16px; color: var(--color-text); border-radius: var(--radius-sm); font-weight: 500; }
.mobile-menu-inner a:hover, .mobile-menu-inner a.active { background: var(--color-bg-soft); color: var(--color-primary); }
.mobile-menu-actions { margin-top: 12px; display: flex; gap: 10px; }
.mobile-menu-actions .btn { flex: 1; justify-content: center; }

/* SECTIONS */
.content-section { padding: var(--section-y) 0; }
.alt-bg { background: var(--color-surface-strong); }
.section-container { max-width: var(--container-max); margin: 0 auto; padding: 0 clamp(16px, 3vw, 32px); }
.section-heading { font-size: var(--fs-h2); line-height: var(--lh-heading); font-weight: 700; color: var(--color-primary-dark); margin-bottom: 16px; }
.section-subhead { font-size: 17px; color: var(--color-text-soft); margin-bottom: 32px; max-width: 720px; }
.center-text { text-align: center; }
.center-text .section-subhead { margin-left: auto; margin-right: auto; }
.prose { max-width: 820px; }
.prose p { margin-bottom: 18px; line-height: var(--lh-body); }
.prose h2 { font-size: var(--fs-h2); margin: 36px 0 16px; color: var(--color-primary-dark); }
.prose h3 { font-size: var(--fs-h3); margin: 28px 0 12px; color: var(--color-primary); }

/* CONTENT IMAGES */
.content-img { width: 100%; max-width: 720px; border-radius: var(--radius-image); box-shadow: var(--shadow-card); margin: 24px auto; }

/* HERO */
.home-hero { background: var(--gradient-hero); color: #fff; padding: clamp(48px, 8vw, 100px) 0; }
.hero-container { max-width: var(--container-max); margin: 0 auto; padding: 0 clamp(16px, 3vw, 32px); display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.hero-content h1 { font-size: var(--fs-h1); line-height: var(--lh-heading); margin-bottom: 18px; }
.hero-lead { font-size: 18px; opacity: 0.9; margin-bottom: 28px; line-height: 1.7; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 20px; }
.hero-trust { font-size: 14px; opacity: 0.75; }
.hero-visual .content-img { border-radius: var(--radius-lg); max-width: 100%; margin: 0; }

/* TRUST STRIP */
.home-trust-strip { background: var(--color-primary-dark); color: #fff; padding: 18px 0; }
.trust-grid { display: flex; justify-content: center; gap: clamp(20px, 4vw, 60px); flex-wrap: wrap; }
.trust-item { display: flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 500; }
.trust-item i { font-size: 20px; color: var(--color-secondary); }

/* FEATURE CARDS */
.feature-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 20px; }
.feature-card { background: var(--color-card); border-radius: var(--radius-card); padding: 28px 24px; text-align: center; box-shadow: var(--shadow-card); transition: transform var(--motion-normal), box-shadow var(--motion-normal); }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
.feature-card i { font-size: 36px; color: var(--color-primary); margin-bottom: 14px; display: block; }
.feature-card h4 { font-size: 18px; margin-bottom: 10px; color: var(--color-primary-dark); }
.feature-card p { font-size: 15px; color: var(--color-text-soft); line-height: 1.7; }

/* SPLIT CONTENT */
.split-content { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.split-content.reverse { direction: rtl; }
.split-content.reverse > * { direction: ltr; }
.split-visual .content-img { margin: 0; max-width: 100%; }

/* NOTICE CARD */
.notice-card { background: #fef3c7; border-left: 4px solid var(--color-accent); padding: 28px; border-radius: var(--radius-md); margin-bottom: 24px; }
.notice-card h3 { color: var(--color-accent); margin-bottom: 12px; }

/* STEP TIMELINE */
.step-timeline { display: grid; gap: 20px; }
.step-card { display: flex; gap: 18px; background: var(--color-card); border-radius: var(--radius-card); padding: 24px; box-shadow: var(--shadow-card); border: 1px solid var(--color-border); }
.step-number { flex: 0 0 44px; width: 44px; height: 44px; background: var(--color-primary); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 18px; }
.step-body h4 { margin-bottom: 8px; color: var(--color-primary-dark); }

/* COMPARISON TABLE */
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.comparison-table { width: 100%; border-collapse: collapse; background: var(--color-card); border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-card); }
.comparison-table th { background: var(--color-primary); color: #fff; padding: 16px; text-align: left; font-weight: 600; }
.comparison-table td { padding: 14px 16px; border-bottom: 1px solid var(--color-border); }

/* RESPONSIBLE CARD */
.responsible-card { background: #fef2f2; border-radius: var(--radius-lg); padding: clamp(28px, 4vw, 48px); }
.responsible-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 20px; margin: 24px 0; }
.responsible-item { background: rgba(255,255,255,0.7); padding: 20px; border-radius: var(--radius-md); }
.responsible-item h4 { color: #991b1b; margin-bottom: 8px; }

/* CTA */
.cta-lead { font-size: 18px; color: var(--color-text-soft); margin-bottom: 28px; max-width: 640px; margin-left: auto; margin-right: auto; }
.cta-buttons { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 16px; }
.cta-trust { font-size: 14px; color: var(--color-text-muted); }

/* GAME LINKS */
.game-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.game-link-card { display: inline-flex; align-items: center; gap: 6px; padding: 10px 18px; background: var(--color-bg-soft); border-radius: var(--radius-sm); font-weight: 500; font-size: 14px; color: var(--color-primary); border: 1px solid var(--color-border); }
.game-link-card:hover { background: var(--color-primary); color: #fff; }

/* RELATED */
.related-links { display: flex; flex-wrap: wrap; gap: 10px; margin: 16px 0; }
.related-card { padding: 12px 20px; background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius-md); font-weight: 500; color: var(--color-primary); }
.related-card:hover { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.related-help { margin-top: 16px; font-size: 15px; color: var(--color-text-soft); }

/* BREADCRUMB */
.breadcrumb-nav { margin-bottom: 16px; }
.breadcrumb-list { list-style: none; display: flex; gap: 8px; font-size: 14px; color: var(--color-text-muted); flex-wrap: wrap; }
.breadcrumb-item + .breadcrumb-item::before { content: "/"; margin-right: 8px; color: var(--color-border-strong); }
.breadcrumb-item.active { color: var(--color-text); }
.page-lead { font-size: 18px; color: var(--color-text-soft); margin-bottom: 24px; max-width: 760px; line-height: 1.7; }

/* MARKET/BENEFIT GRIDS */
.market-grid, .benefit-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 20px; margin: 24px 0; }
.market-card, .benefit-card { background: var(--color-card); border-radius: var(--radius-card); padding: 24px; box-shadow: var(--shadow-card); border: 1px solid var(--color-border); }
.market-card h4, .benefit-card h4 { color: var(--color-primary); margin-bottom: 10px; }
.market-card h4 i, .benefit-card h4 i { margin-right: 6px; }
.benefit-card i { font-size: 28px; color: var(--color-primary); display: block; margin-bottom: 12px; }

/* SPORTS HERO */
.sports-hero-split { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 36px; align-items: center; }
.sports-hero-visual .content-img { margin: 0; max-width: 100%; }

/* ABOUT */
.about-feature-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; }
.about-feature-card { background: var(--color-card); border-radius: var(--radius-card); padding: 28px; box-shadow: var(--shadow-card); border-left: 4px solid var(--color-primary); }
.about-feature-card i { font-size: 32px; color: var(--color-primary); margin-bottom: 12px; display: block; }
.about-feature-card h3 { font-size: 18px; margin-bottom: 8px; color: var(--color-primary-dark); }
.about-data-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin: 24px 0; }
.data-card { background: var(--color-primary); color: #fff; border-radius: var(--radius-card); padding: 28px; text-align: center; }
.data-number { display: block; font-size: 32px; font-weight: 700; }
.data-label { font-size: 14px; opacity: 0.8; }

/* AUTH PAGES */
.auth-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; align-items: start; }
.auth-form-card { background: var(--color-card); border-radius: var(--radius-lg); padding: 36px; box-shadow: var(--shadow-card); }
.auth-form-card h2 { font-size: 22px; margin-bottom: 24px; color: var(--color-primary-dark); }
.auth-trust-card { background: var(--color-bg-soft); border-radius: var(--radius-lg); padding: 28px; }
.auth-trust-card h3 { margin-bottom: 12px; color: var(--color-primary); }
.register-benefit-grid { background: var(--color-bg-soft); border-radius: var(--radius-lg); padding: 28px; }
.register-benefit-grid h3 { margin-bottom: 16px; color: var(--color-primary-dark); }
.benefit-list { display: flex; flex-direction: column; gap: 12px; margin-bottom: 20px; }
.benefit-item { display: flex; align-items: center; gap: 10px; font-weight: 500; }
.benefit-item i { color: var(--color-success); font-size: 18px; }

/* FORMS */
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 14px; color: var(--color-text); }
.form-group input { width: 100%; padding: 12px 16px; border: 1.5px solid var(--color-border); border-radius: var(--radius-sm); font-size: 15px; background: var(--color-surface); transition: border-color var(--motion-normal); }
.form-group input:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(26,58,92,0.1); }
.auth-alt { text-align: center; margin-top: 16px; font-size: 14px; color: var(--color-text-soft); }

/* FAQ */
.faq-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 36px; }
.faq-card { background: var(--color-card); border-radius: var(--radius-md); border: 1px solid var(--color-border); overflow: hidden; }
.faq-toggle { width: 100%; display: flex; justify-content: space-between; align-items: center; padding: 18px 20px; background: none; border: none; font-size: 16px; font-weight: 600; color: var(--color-text); cursor: pointer; text-align: left; }
.faq-toggle i { transition: transform var(--motion-normal); color: var(--color-primary); }
.faq-card.is-open .faq-toggle i { transform: rotate(180deg); }
.faq-answer { display: none; padding: 0 20px 18px; color: var(--color-text-soft); line-height: 1.7; }
.faq-card.is-open .faq-answer { display: block; }

/* POLICY PAGES */
.policy-layout { max-width: 820px; }
.policy-layout h2 { font-size: var(--fs-h2); color: var(--color-primary-dark); margin: 36px 0 16px; padding-top: 16px; border-top: 1px solid var(--color-border); }
.policy-layout h2:first-child { border-top: none; margin-top: 0; }
.policy-layout h3 { font-size: var(--fs-h3); color: var(--color-primary); margin: 20px 0 10px; }
.policy-updated { font-size: 14px; color: var(--color-text-muted); margin-top: 8px; }

/* 404 */
.error-section { min-height: 60vh; display: flex; align-items: center; }
.error-section h1 { font-size: clamp(64px, 12vw, 140px); color: var(--color-primary); opacity: 0.2; line-height: 1; }
.error-section h2 { font-size: var(--fs-h2); margin-bottom: 16px; }

/* FOOTER */
.site-footer { background: var(--color-footer-bg); color: var(--color-footer-text); }
.footer-top { padding: 48px 0 28px; }
.footer-container { max-width: var(--container-max); margin: 0 auto; padding: 0 clamp(16px, 3vw, 32px); }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 32px; }
.footer-heading { color: var(--color-secondary); font-size: 17px; margin-bottom: 16px; }
.footer-brand-desc { font-size: 14px; line-height: 1.7; margin-bottom: 12px; opacity: 0.85; }
.footer-contact { font-size: 14px; }
.footer-contact i { margin-right: 6px; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 8px; }
.footer-links a { color: var(--color-footer-text); font-size: 14px; opacity: 0.8; transition: opacity var(--motion-normal); }
.footer-links a:hover { opacity: 1; color: var(--color-secondary); }
.footer-bottom { padding: 16px 0; border-top: 1px solid rgba(255,255,255,0.08); }
.footer-bottom p { font-size: 13px; text-align: center; opacity: 0.6; }

/* 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; gap: clamp(5px, 1.6vw, 8px); }
  .header-actions .btn { min-height: 40px; padding: 0 clamp(10px, 2.6vw, 14px); font-size: clamp(12px, 3.2vw, 14px); }
}

@media (max-width: 900px) {
  .hero-container { grid-template-columns: 1fr; text-align: center; }
  .hero-cta { justify-content: center; }
  .split-content, .split-content.reverse { grid-template-columns: 1fr; direction: ltr; }
  .sports-hero-split { grid-template-columns: 1fr; }
  .auth-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .about-data-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .feature-cards { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .about-data-grid { grid-template-columns: 1fr 1fr; }
  .about-feature-grid { grid-template-columns: 1fr; }
  .hero-content h1 { font-size: 26px; }
  .btn-hero-primary, .btn-hero-secondary { width: 100%; }
}

@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: 0 9px; font-size: 12px; }
  .nav-toggle { flex-basis: 38px; width: 38px; height: 38px; }
}