/* ===== Crystal Arcade Trust UI - Design System ===== */
:root {
  --color-primary: #16a34a;
  --color-primary-dark: #15803d;
  --color-primary-soft: rgba(22,163,74,0.12);
  --color-secondary: #ef4444;
  --color-accent: #facc15;
  --color-bg: #0f172a;
  --color-bg-soft: #1e293b;
  --color-surface: #1e293b;
  --color-surface-strong: #334155;
  --color-card: #1e293b;
  --color-card-alt: #0f172a;
  --color-border: #334155;
  --color-border-strong: #475569;
  --color-text: #f1f5f9;
  --color-text-soft: #cbd5e1;
  --color-text-muted: #94a3b8;
  --color-success: #22c55e;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  --color-footer-bg: #020617;
  --color-footer-text: #94a3b8;
  --gradient-hero: linear-gradient(135deg, #0f172a 0%, #1a0a0a 40%, #0a1a0a 70%, #1a1200 100%);
  --gradient-button: linear-gradient(135deg, var(--color-secondary), #b91c1c);
  --gradient-cta: linear-gradient(135deg, #7f1d1d, #14532d 50%, #713f12);
  --shadow-card: 0 4px 24px rgba(0,0,0,0.3);
  --shadow-card-hover: 0 8px 32px rgba(0,0,0,0.45);
  --shadow-header: 0 2px 12px rgba(0,0,0,0.4);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-card: 16px;
  --container-max: 1200px;
  --section-y: 72px;
  --header-h: 72px;
  --font-base: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, "Noto Sans Bengali", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-base); background: var(--color-bg); color: var(--color-text); font-size: 1.05rem; line-height: 1.8; overflow-x: hidden; }
a { color: var(--color-accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: #fde68a; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

.container { width: 100%; max-width: var(--container-max); margin: 0 auto; padding: 0 20px; }
.content-img { width: 100%; border-radius: var(--radius-md); box-shadow: var(--shadow-card); border: 1px solid var(--color-border); margin: 24px 0; }

/* ===== HEADER ===== */
.site-header { position: sticky; top: 0; z-index: 1000; background: linear-gradient(90deg, #0f172a, #1a0a0a); border-bottom: 2px solid var(--color-secondary); 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: #e2e8f0; font-weight: 500; transition: color 0.2s; border-radius: var(--radius-sm); }
.primary-nav a:hover, .primary-nav a.active { color: var(--color-accent); }
.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: 700; font-size: 0.9rem; cursor: pointer; transition: all 0.2s; border: none; white-space: nowrap; text-decoration: none; }
.btn-login { background: transparent; color: var(--color-accent); border: 2px solid var(--color-accent); }
.btn-login:hover { background: var(--color-accent); color: #111; }
.btn-register, .btn-register-hero { background: var(--gradient-button); color: #fff; }
.btn-register:hover, .btn-register-hero:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(239,68,68,0.4); color: #fff; }
.btn-outline-hero { background: transparent; color: var(--color-accent); border: 2px solid var(--color-accent); padding: 10px 28px; border-radius: var(--radius-sm); font-weight: 700; }
.btn-outline-hero:hover { background: var(--color-accent); color: #111; }
.btn-full { width: 100%; }
.nav-toggle { display: none; flex: 0 0 40px; width: 40px; height: 40px; background: transparent; border: 1px solid var(--color-accent); border-radius: var(--radius-sm); cursor: pointer; align-items: center; justify-content: center; flex-direction: column; gap: 5px; padding: 8px; }
.nav-toggle span { display: block; width: 100%; height: 2px; background: var(--color-accent); border-radius: 2px; transition: all 0.3s; }
.mobile-menu { display: none; position: fixed; left: 12px; right: 12px; top: 80px; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 16px; max-height: calc(100vh - 100px); overflow-y: auto; z-index: 999; box-shadow: var(--shadow-card); }
.mobile-menu.is-open { display: block; }
.mobile-nav { display: flex; flex-direction: column; gap: 0; }
.mobile-nav a { padding: 14px 12px; color: #e2e8f0; font-weight: 500; border-bottom: 1px solid var(--color-border); }
.mobile-nav a:hover { color: var(--color-accent); }

/* ===== HERO ===== */
.home-hero { background: var(--gradient-hero); padding: 80px 0 60px; position: relative; overflow: hidden; }
.home-hero::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse at 20% 50%, rgba(239,68,68,0.12) 0%, transparent 60%), radial-gradient(ellipse at 80% 50%, rgba(22,163,74,0.1) 0%, transparent 60%); pointer-events: none; }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.hero-text { position: relative; z-index: 1; }
.hero-text h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 700; line-height: 1.3; margin-bottom: 16px; }
.hero-lead { color: var(--color-text-soft); font-size: 1.1rem; max-width: 520px; margin-bottom: 24px; }
.hero-cta-group { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 32px; }
.hero-stats { display: flex; gap: 32px; }
.stat-item { text-align: left; }
.stat-num { display: block; font-size: 1.4rem; font-weight: 700; color: var(--color-accent); }
.stat-label { font-size: 0.85rem; color: var(--color-text-muted); }

/* ===== SECTIONS ===== */
section[data-seo-body="true"] { padding: var(--section-y) 0; }
section[data-seo-body="true"]:nth-child(even) { background: var(--color-bg-soft); }
section[data-seo-body="true"] h2 { font-size: clamp(1.3rem, 3vw, 1.8rem); font-weight: 700; color: #fff; margin-bottom: 16px; line-height: 1.35; }
section[data-seo-body="true"] h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); font-weight: 700; color: var(--color-accent); margin: 28px 0 12px; }
section[data-seo-body="true"] p { color: var(--color-text-soft); font-size: 1.05rem; line-height: 1.85; margin-bottom: 18px; max-width: 900px; }

/* ===== GAME PAGES ===== */
.game-hero { background: var(--gradient-hero); padding: 60px 0 48px; position: relative; }
.game-hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 40px; align-items: center; }
.game-lead { color: var(--color-text-soft); font-size: 1.05rem; margin: 16px 0 24px; }
.game-cta-group { display: flex; gap: 12px; flex-wrap: wrap; }

/* ===== AUTH PAGES ===== */
.auth-hero, .register-hero { background: var(--gradient-hero); padding: 60px 0; }
.auth-layout, .register-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.auth-form-card, .register-form-card { background: var(--color-surface); padding: 36px 28px; border-radius: var(--radius-card); border: 1px solid var(--color-border); }
.auth-form-card h1, .register-form-card h1 { font-size: 1.4rem; margin-bottom: 24px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-weight: 600; margin-bottom: 6px; color: var(--color-text-soft); font-size: 0.95rem; }
.form-group input { width: 100%; padding: 12px 16px; background: var(--color-bg); border: 1px solid var(--color-border); border-radius: var(--radius-sm); color: var(--color-text); font-size: 1rem; transition: border-color 0.2s; }
.form-group input:focus { outline: none; border-color: var(--color-accent); box-shadow: 0 0 0 3px rgba(250,204,21,0.15); }
.auth-alt { text-align: center; margin-top: 16px; color: var(--color-text-muted); font-size: 0.95rem; }

/* ===== BREADCRUMB ===== */
.breadcrumb-nav { padding: 16px 0; background: var(--color-bg-soft); border-bottom: 1px solid var(--color-border); font-size: 0.9rem; }
.breadcrumb-nav a { color: var(--color-accent); }
.breadcrumb-nav .sep { color: var(--color-text-muted); margin: 0 8px; }

/* ===== PAGE TITLE ===== */
.page-title-section { padding: 48px 0 24px; background: var(--gradient-hero); }
.page-title-section h1 { font-size: clamp(1.6rem, 3.5vw, 2.2rem); font-weight: 700; }

/* ===== CTA SECTION ===== */
.home-final-cta { background: var(--gradient-cta); padding: 64px 0; text-align: center; }
.home-final-cta h2 { color: #fff; font-size: clamp(1.4rem, 3vw, 2rem); margin-bottom: 16px; }
.home-final-cta p { color: #fde68a; max-width: 560px; margin: 0 auto 32px; }
.cta-buttons { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* ===== FOOTER ===== */
.site-footer { background: var(--color-footer-bg); border-top: 2px solid var(--color-secondary); padding: 48px 0 24px; }
.footer-inner { max-width: var(--container-max); margin: 0 auto; padding: 0 20px; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1fr; gap: 32px; }
.footer-brand { font-size: 1.4rem; font-weight: 700; color: var(--color-accent); margin-bottom: 8px; }
.footer-logo { display: block; width: auto; height: clamp(34px, 3.2vw, 44px); max-width: min(168px, 100%); object-fit: contain; margin-bottom: 12px; }
.footer-desc { color: var(--color-footer-text); font-size: 0.9rem; max-width: 280px; }
.footer-heading { color: var(--color-accent); font-weight: 700; font-size: 0.9rem; margin-bottom: 14px; text-transform: uppercase; letter-spacing: 1px; }
.footer-heading-contact { margin-top: 20px; }
.footer-links { margin: 0; padding: 0; }
.footer-links li { margin-bottom: 8px; }
.footer-links a { color: var(--color-footer-text); font-size: 0.9rem; }
.footer-links a:hover { color: var(--color-accent); }
.footer-contact { color: var(--color-footer-text); font-size: 0.9rem; }
.footer-bottom { border-top: 1px solid var(--color-border); margin-top: 32px; padding-top: 20px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; color: var(--color-text-muted); font-size: 0.85rem; }
.footer-age { color: var(--color-secondary); }

/* ===== FOCUS & ACCESSIBILITY ===== */
:focus-visible { outline: 2px solid var(--color-accent); 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; }
  .header-inner { 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-inline: clamp(10px, 2.6vw, 14px); font-size: clamp(12px, 3.2vw, 14px); }
  .nav-toggle { flex: 0 0 40px; }
}
@media (max-width: 900px) {
  :root { --section-y: 48px; }
  .hero-grid, .game-hero-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero-stats { gap: 20px; }
  .auth-layout, .register-layout { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
}
@media (max-width: 640px) {
  .footer-grid { grid-template-columns: 1fr; }
  .hero-stats { flex-wrap: wrap; }
  .home-hero { padding: 48px 0 32px; }
}
@media (max-width: 375px) {
  .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; }
}