/* ============================================
   bd99 Design System - Emerald Trust Gaming UI
   Domain: bd-99.org | Market: Bangladesh (en-BD)
   ============================================ */

:root {
  --color-primary: #1e3a5f;
  --color-primary-dark: #0f2744;
  --color-primary-soft: #e8f0fe;
  --color-secondary: #64748b;
  --color-accent: #2563eb;
  --color-accent-hover: #1d4ed8;
  --color-bg: #f1f5f9;
  --color-bg-soft: #e2e8f0;
  --color-surface: #ffffff;
  --color-card: #ffffff;
  --color-card-alt: #f8fafc;
  --color-border: #cbd5e1;
  --color-border-light: rgba(100,116,139,.12);
  --color-text: #1e293b;
  --color-text-soft: #475569;
  --color-text-muted: #64748b;
  --color-success: #059669;
  --color-warning: #d97706;
  --color-danger: #dc2626;
  --color-footer-bg: #1e293b;
  --color-footer-text: #94a3b8;
  --color-stars: #f59e0b;

  --gradient-hero: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  --gradient-button: linear-gradient(135deg, #1e3a5f, #2563eb);
  --gradient-card-bg: linear-gradient(135deg, #eff6ff, #ffffff);
  --gradient-cta: linear-gradient(135deg, #eff6ff 0%, #ffffff 100%);

  --shadow-header: 0 2px 16px rgba(30,58,95,.08);
  --shadow-card: 0 8px 28px rgba(100,116,139,.10);
  --shadow-card-hover: 0 14px 36px rgba(100,116,139,.16);
  --shadow-soft: 0 4px 12px rgba(100,116,139,.06);
  --shadow-button: 0 4px 14px rgba(37,99,235,.18);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-pill: 999px;

  --font-base: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, "Noto Sans Bengali", sans-serif;
  --font-heading: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;

  --container-max: 1200px;
  --header-h: 72px;
  --mobile-header-h: 64px;

  --motion-fast: .15s;
  --motion-normal: .25s;
  --motion-slow: .4s;
  --ease-out: cubic-bezier(.25,.46,.45,.94);
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-base);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--color-accent); text-decoration: none; transition: color var(--motion-fast); }
a:hover { color: var(--color-accent-hover); }

img { max-width: 100%; height: auto; display: block; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-primary);
  font-weight: 800;
  line-height: 1.25;
  margin-top: 0;
}

h1 { font-size: clamp(1.6rem, 3.2vw, 2.4rem); margin-bottom: 1rem; }
h2 { font-size: clamp(1.3rem, 2.6vw, 1.9rem); margin-bottom: .75rem; }
h3 { font-size: clamp(1.1rem, 2vw, 1.35rem); margin-bottom: .6rem; font-weight: 700; }

p { margin: 0 0 1rem; color: var(--color-text-soft); }
.lead { font-size: 1.1rem; line-height: 1.8; color: var(--color-text-soft); }

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

/* ---- Section Utilities ---- */
.section-kicker {
  display: inline-block;
  color: var(--color-accent);
  text-transform: uppercase;
  font-size: .82rem;
  letter-spacing: .08em;
  font-weight: 700;
  margin-bottom: .5rem;
}

.section-title { color: var(--color-primary); font-weight: 800; }

.section-desc {
  max-width: 900px;
  color: var(--color-text-soft);
  font-size: 1rem;
  line-height: 1.8;
}

.soft-bg { background: var(--color-bg-soft); }

/* ---- Buttons ---- */
.btn-main {
  background: var(--gradient-button);
  color: #fff;
  border: none;
  border-radius: var(--radius-pill);
  padding: .75rem 1.5rem;
  font-weight: 700;
  font-size: .95rem;
  box-shadow: var(--shadow-button);
  transition: all var(--motion-normal) var(--ease-out);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
}
.btn-main:hover { background: var(--color-primary-dark); color: #fff; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(37,99,235,.25); }

.btn-accent {
  background: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-pill);
  padding: .75rem 1.5rem;
  font-weight: 700;
  font-size: .95rem;
  transition: all var(--motion-normal) var(--ease-out);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
}
.btn-accent:hover { background: var(--color-accent-hover); color: #fff; transform: translateY(-1px); }

.btn-outline-secondary {
  background: transparent;
  color: var(--color-secondary);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-pill);
  padding: .65rem 1.25rem;
  font-weight: 700;
  font-size: .95rem;
  transition: all var(--motion-normal);
  min-height: 44px;
}
.btn-outline-secondary:hover { background: var(--color-bg-soft); color: var(--color-primary); border-color: var(--color-primary); }

/* ---- Site Header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(241,245,249,.97);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-header);
  border-bottom: 1px solid var(--color-border-light);
}

.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);
  text-decoration: none;
}

.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 .nav-link {
  flex: 0 1 auto;
  min-width: 0;
  padding: 8px clamp(5px, .55vw, 10px);
  font-size: clamp(12.5px, .82vw, 14.5px);
  line-height: 1;
  white-space: nowrap;
  color: var(--color-text-muted);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: color var(--motion-fast), background var(--motion-fast);
}
.primary-nav .nav-link:hover,
.primary-nav .nav-link:focus { color: var(--color-accent); }
.primary-nav .nav-link.active { color: var(--color-accent); 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;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 8px;
  transition: background var(--motion-fast);
}
.nav-toggle:hover { background: var(--color-bg-soft); }
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--motion-normal);
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--header-h);
  left: 12px;
  right: 12px;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: 0 16px 48px rgba(30,58,95,.18);
  border: 1px solid var(--color-border-light);
  padding: 16px;
  z-index: 999;
  max-height: calc(100vh - 80px);
  overflow-y: auto;
}
.mobile-menu.is-open { display: block; }
.mobile-menu nav { display: flex; flex-direction: column; gap: 0; }
.mobile-menu nav a {
  display: block;
  padding: 14px 12px;
  color: var(--color-text);
  font-weight: 600;
  font-size: .95rem;
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: background var(--motion-fast);
}
.mobile-menu nav a:hover,
.mobile-menu nav a.active { background: var(--color-primary-soft); color: var(--color-accent); }

/* ---- Hero ---- */
.home-hero {
  background: var(--gradient-hero);
  border-bottom: 1px solid var(--color-border);
}

.hero-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
}

/* ---- Cards ---- */
.section-card,
.info-card,
.testimonial-card,
.faq-item,
.table-wrap,
.privacy-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--motion-normal) var(--ease-out);
}

.info-card {
  padding: 1.6rem;
  transition: transform var(--motion-normal) var(--ease-out), box-shadow var(--motion-normal);
}
.info-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}
.info-card h3 { font-size: 1.1rem; font-weight: 800; color: var(--color-primary); }

.icon-badge {
  width: 58px;
  height: 58px;
  border-radius: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #dbeafe, #eef2ff);
  color: var(--color-accent);
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

/* ---- Image Blocks ---- */
.image-block img {
  width: 100%;
  max-width: 900px;
  height: auto;
  display: block;
  margin: 0 auto;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border-light);
}

/* ---- Comparison Table ---- */
.comparison-table th {
  background: #e2e8f0;
  color: var(--color-primary);
  border-color: #cbd5e1;
  font-weight: 700;
  font-size: .9rem;
}
.comparison-table td {
  background: #fff;
  border-color: #e5e7eb;
  color: var(--color-primary);
  font-size: .9rem;
}

/* ---- Privacy Card ---- */
.privacy-card {
  border-left: 5px solid var(--color-accent);
  padding: 1.5rem;
  background: var(--gradient-cta);
}
.privacy-card h3 { color: var(--color-primary); font-weight: 700; }

/* ---- Testimonials ---- */
.testimonial-card {
  padding: 1.5rem;
}
.stars { color: var(--color-stars); font-size: 1.1rem; margin-bottom: .5rem; }
.reviewer-name { font-weight: 700; color: var(--color-primary); }
.reviewer-location { color: var(--color-text-muted); font-size: .85rem; }

/* ---- Pathway List ---- */
.pathway-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
}
.pathway-list li {
  padding: .5rem 0;
  color: var(--color-text);
  font-weight: 500;
}
.pathway-list li i { color: var(--color-accent); margin-right: .5rem; }

/* ---- Responsible List ---- */
.responsible-list { padding-left: 1.2rem; }
.responsible-list li { margin-bottom: .65rem; color: var(--color-text-soft); }

/* ---- FAQ ---- */
.faq-item {
  padding: 1.5rem;
}
.faq-item h3 { font-size: 1.05rem; font-weight: 700; }

/* ---- Breadcrumb ---- */
.breadcrumb-wrap {
  background: #eef2f7;
  border: 1px solid #dbe3ec;
  border-radius: var(--radius-md);
  padding: .75rem 1rem;
}
.breadcrumb-wrap .breadcrumb { margin: 0; }
.breadcrumb-wrap .breadcrumb a { color: var(--color-accent); text-decoration: none; }
.breadcrumb-wrap .breadcrumb-item.active { color: var(--color-text-muted); }

/* ---- Article / Content Cards ---- */
.article-card,
.content-card,
.feature-card,
.highlight-card,
.callout,
.cta-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 1.5rem;
}

.feature-card {
  transition: transform var(--motion-normal) var(--ease-out), box-shadow var(--motion-normal);
}
.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
}

.callout {
  border-left: 4px solid var(--color-accent);
  background: var(--gradient-cta);
}

.cta-card {
  background: var(--gradient-cta);
}

/* ---- Footer ---- */
.site-footer {
  background: var(--color-footer-bg);
  color: var(--color-footer-text);
  padding: 3rem 0 1.5rem;
  border-top: 1px solid rgba(255,255,255,.08);
}
.site-footer hr { border-color: rgba(255,255,255,.1); margin: 1.5rem 0; }

.footer-brand {
  display: inline-block;
  margin-bottom: 1rem;
  text-decoration: none;
}
.footer-brand img { height: 40px; width: auto; }

.footer-desc {
  color: var(--color-footer-text);
  font-size: .9rem;
  line-height: 1.7;
  margin-bottom: .75rem;
}

.footer-contact {
  color: var(--color-footer-text);
  font-size: .85rem;
}
.footer-contact a { color: var(--color-accent); }

.site-footer .col a {
  color: var(--color-footer-text);
  text-decoration: none;
  font-size: .9rem;
  transition: color var(--motion-fast);
}
.site-footer .col a:hover { color: #fff; }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: .5rem;
  font-size: .83rem;
  color: rgba(148,163,184,.7);
}

/* ---- Focus Visible ---- */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---- Reduced Motion ---- */
@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 {
    width: 100%;
    max-width: none;
    padding-left: clamp(8px, 2.4vw, 14px);
    padding-right: clamp(8px, 2.4vw, 14px);
    min-height: var(--mobile-header-h);
    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;
    justify-content: flex-end;
    gap: clamp(5px, 1.6vw, 8px);
  }
}

@media (max-width: 768px) {
  .home-hero .row { flex-direction: column; }
  .section-desc { max-width: 100%; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .mobile-menu { top: var(--mobile-header-h); }
  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.25rem; }
}

@media (max-width: 414px) {
  .container { padding: 0 14px; }
  .hero-card { padding: 1.25rem !important; }
  .info-card { padding: 1.2rem; }
  .faq-item { padding: 1.1rem; }
}

@media (max-width: 375px) {
  .header-inner {
    padding-left: 8px;
    padding-right: 8px;
    gap: 6px;
  }
  .site-logo { max-width: 104px; }
  .nav-toggle {
    flex-basis: 38px;
    width: 38px;
    height: 38px;
  }
  body { font-size: 15px; }
  .container { padding: 0 10px; }
}

/* ---- Print ---- */
@media print {
  .site-header, .site-footer, .nav-toggle, .mobile-menu, #br-stick { display: none !important; }
}