/* ===================================
   6777bet - Global Stylesheet
   Original design for Bangladesh market
   =================================== */

:root {
  --color-primary: #1a56db;
  --color-primary-dark: #1041a8;
  --color-primary-light: #3b82f6;
  --color-accent: #f59e0b;
  --color-accent-dark: #d97706;
  --color-bg-dark: #0c1222;
  --color-bg-card: #131c31;
  --color-bg-card-alt: #182240;
  --color-bg-section: #101828;
  --color-text: #d4daf0;
  --color-text-light: #9ba4be;
  --color-text-white: #f0f2f8;
  --color-border: #1e2d4a;
  --color-success: #10b981;
  --color-danger: #ef4444;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-card: 0 2px 12px rgba(0,0,0,.25);
  --shadow-hover: 0 8px 28px rgba(26,86,219,.18);
  --font-stack: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, "Noto Sans Bengali", sans-serif;
  --max-width: 1180px;
  --header-h: 72px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-stack);
  background: var(--color-bg-dark);
  color: var(--color-text);
  line-height: 1.8;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary-light); text-decoration: none; transition: color .25s; }
a:hover { color: var(--color-accent); }

.wrap { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }

/* ===================================
   HEADER - Stable single-line layout
   =================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
  background: var(--color-bg-card);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  min-height: var(--header-h);
  padding: 0 20px;
  display: grid;
  grid-template-columns: 168px minmax(0, 1fr) auto;
  align-items: center;
  gap: 18px;
}

.brand-wrap {
  width: 168px;
  min-width: 168px;
  max-width: 168px;
  height: 56px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.brand-logo {
  display: block;
  width: 168px;
  max-width: 100%;
  height: auto;
  max-height: 56px;
  object-fit: contain;
}

.primary-nav {
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(6px, 1vw, 18px);
  overflow: visible;
  flex-wrap: nowrap;
}

.primary-nav a {
  white-space: nowrap;
  flex: 0 1 auto;
  max-width: 140px;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1;
  padding: 10px 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-light);
  transition: color .25s;
  border-bottom: 2px solid transparent;
}

.primary-nav a:hover,
.primary-nav a.active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.header-actions {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-stack);
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all .25s;
  text-decoration: none;
  line-height: 1;
}

.btn-register {
  min-height: 40px;
  padding: 0 18px;
  font-size: 14px;
  background: var(--color-accent);
  color: #1a1a2e;
  border-radius: var(--radius-sm);
}

.btn-register:hover {
  background: var(--color-accent-dark);
  color: #fff;
  transform: translateY(-1px);
}

.btn-login {
  min-height: 40px;
  padding: 0 18px;
  font-size: 14px;
  background: transparent;
  color: var(--color-primary-light);
  border: 1.5px solid var(--color-primary-light);
  border-radius: var(--radius-sm);
}

.btn-login:hover {
  background: var(--color-primary-light);
  color: #fff;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 20px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

/* More menu */
.nav-more {
  position: relative;
  flex: 0 0 auto;
}

.more-toggle {
  min-height: 38px;
  padding: 0 12px;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-card-alt);
  color: var(--color-text-light);
  font-size: 14px;
  font-family: var(--font-stack);
  transition: background .2s;
}

.more-toggle:hover { background: var(--color-primary); color: #fff; }

.more-menu {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  min-width: 210px;
  padding: 10px;
  border-radius: var(--radius-md);
  z-index: 1200;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
}

.more-menu[hidden] { display: none !important; }

.more-menu:not([hidden]) { display: none; }

.nav-more.is-open .more-menu:not([hidden]) {
  display: grid !important;
  gap: 4px;
}

.more-menu a {
  display: block;
  width: 100%;
  max-width: none;
  padding: 11px 12px;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  font-size: 14px;
}

.more-menu a:hover { background: var(--color-bg-card-alt); color: var(--color-accent); }

/* ===================================
   BREADCRUMB
   =================================== */
.breadcrumb-bar {
  background: var(--color-bg-section);
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border);
}

.breadcrumb-bar ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 13px;
  color: var(--color-text-light);
}

.breadcrumb-bar a { color: var(--color-primary-light); }
.breadcrumb-bar li + li::before { content: "›"; margin-right: 6px; color: var(--color-text-light); }

/* ===================================
   HERO SECTIONS
   =================================== */
.hero-home {
  background: linear-gradient(160deg, var(--color-bg-card) 0%, var(--color-bg-dark) 60%, #0d1b3e 100%);
  padding: 60px 0 50px;
  text-align: center;
}

.hero-home h1 {
  font-size: clamp(26px, 4vw, 48px);
  line-height: 1.25;
  color: var(--color-text-white);
  margin-bottom: 18px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.hero-home .hero-lead {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--color-text-light);
  max-width: 700px;
  margin: 0 auto 28px;
}

.hero-banner-img {
  width: 100%;
  max-width: 960px;
  margin: 28px auto 0;
  border-radius: var(--radius-lg);
  box-shadow: 0 12px 40px rgba(0,0,0,.4);
}

.hero-inner {
  background: linear-gradient(160deg, var(--color-bg-card) 0%, #0d1b3e 100%);
  padding: 48px 0 36px;
  text-align: center;
}

.hero-inner h1 {
  font-size: clamp(24px, 3.5vw, 40px);
  line-height: 1.3;
  color: var(--color-text-white);
  margin-bottom: 14px;
}

.hero-inner .hero-lead {
  font-size: clamp(15px, 1.8vw, 18px);
  color: var(--color-text-light);
  max-width: 680px;
  margin: 0 auto;
}

/* ===================================
   CONTENT SECTIONS
   =================================== */
.content-section {
  padding: 64px 0;
}

.content-section.alt-bg {
  background: var(--color-bg-section);
}

.section-heading {
  font-size: clamp(24px, 3vw, 38px);
  line-height: 1.25;
  color: var(--color-text-white);
  margin-bottom: 24px;
}

.section-heading.center { text-align: center; }

/* Prose */
.prose { max-width: 820px; }
.prose.centered { margin-left: auto; margin-right: auto; }

.prose p {
  font-size: 16px;
  line-height: 1.85;
  margin: 0 0 18px;
  color: var(--color-text);
}

.prose h2 {
  font-size: clamp(22px, 2.8vw, 34px);
  line-height: 1.25;
  color: var(--color-text-white);
  margin: 42px 0 16px;
}

.prose h3 {
  font-size: clamp(18px, 2vw, 24px);
  line-height: 1.35;
  color: var(--color-text-white);
  margin: 30px 0 12px;
}

.prose ul, .prose ol {
  padding-left: 24px;
  margin-bottom: 18px;
}

.prose li {
  margin-bottom: 8px;
  line-height: 1.7;
}

.prose img {
  border-radius: var(--radius-md);
  margin: 28px 0;
  box-shadow: var(--shadow-card);
}

/* Content grid (text + image side) */
.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, .95fr);
  gap: 36px;
  align-items: start;
}

/* ===================================
   CARDS
   =================================== */
.card-grid {
  display: grid;
  gap: 24px;
}

.card-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.card-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.card-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: transform .25s, box-shadow .25s;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--color-primary);
}

.card-icon {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: #fff;
  margin-bottom: 16px;
}

.card h3 {
  font-size: 18px;
  color: var(--color-text-white);
  margin-bottom: 10px;
  line-height: 1.3;
}

.card p {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* Step cards */
.step-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  counter-reset: steps;
}

.step-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 20px;
  text-align: center;
  position: relative;
  counter-increment: steps;
}

.step-card::before {
  content: counter(steps);
  display: flex;
  width: 44px;
  height: 44px;
  background: var(--color-primary);
  color: #fff;
  border-radius: 50%;
  font-size: 20px;
  font-weight: 700;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
}

.step-card h3 {
  font-size: 17px;
  color: var(--color-text-white);
  margin-bottom: 8px;
}

.step-card p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* ===================================
   TABLE
   =================================== */
.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.data-table th {
  background: var(--color-primary);
  color: #fff;
  padding: 14px 16px;
  font-size: 15px;
  text-align: left;
}

.data-table td {
  padding: 13px 16px;
  border-bottom: 1px solid var(--color-border);
  font-size: 15px;
}

.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--color-bg-card-alt); }

/* ===================================
   FAQ
   =================================== */
.faq-section { padding: 64px 0; }
.faq-section.has-bg { background: var(--color-bg-section); }

.faq-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 22px 24px;
  margin-bottom: 16px;
}

.faq-item h3 {
  font-size: 17px;
  color: var(--color-primary-light);
  margin-bottom: 10px;
  line-height: 1.4;
}

.faq-item p {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.75;
}

/* ===================================
   CTA SECTIONS
   =================================== */
.cta-block {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  padding: 56px 0;
  text-align: center;
  border-radius: var(--radius-lg);
  margin: 48px 0;
}

.cta-block h2 {
  color: #fff;
  font-size: clamp(22px, 3vw, 34px);
  margin-bottom: 14px;
}

.cta-block p {
  color: #dbeafe;
  font-size: 17px;
  margin-bottom: 24px;
}

.btn-cta {
  min-height: 48px;
  padding: 0 32px;
  font-size: 16px;
  background: var(--color-accent);
  color: #1a1a2e;
  border-radius: var(--radius-sm);
  font-weight: 700;
}

.btn-cta:hover {
  background: #fff;
  color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,.2);
}

/* Inline CTA */
.inline-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 24px;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 15px;
}

.inline-cta:hover {
  background: var(--color-accent);
  color: #1a1a2e;
}

/* ===================================
   TESTIMONIALS
   =================================== */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  background: var(--color-bg-card);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: 24px;
}

.testimonial-card p {
  font-style: italic;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 12px;
}

.testimonial-author {
  color: var(--color-accent);
  font-weight: 600;
  font-size: 14px;
}

/* ===================================
   STATS
   =================================== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}

.stat-box {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 16px;
}

.stat-number {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-primary-light);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 14px;
  color: var(--color-text-light);
}

/* ===================================
   INFO CARD / CHECKLIST
   =================================== */
.info-box {
  background: var(--color-bg-card-alt);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  margin: 24px 0;
}

.info-box h3 {
  color: var(--color-text-white);
  margin-bottom: 12px;
  font-size: 18px;
}

.info-box ul {
  list-style: none;
  padding: 0;
}

.info-box li {
  padding: 6px 0 6px 24px;
  position: relative;
  font-size: 15px;
  color: var(--color-text);
}

.info-box li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: 700;
}

/* Warning box */
.warning-box {
  background: rgba(239,68,68,.08);
  border-left: 4px solid var(--color-danger);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  margin: 24px 0;
}

.warning-box h3 { color: var(--color-danger); margin-bottom: 12px; }

/* ===================================
   RELATED PAGES
   =================================== */
.related-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 16px;
  margin: 24px 0;
}

.related-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  transition: all .25s;
}

.related-link:hover {
  border-color: var(--color-primary);
  background: var(--color-bg-card-alt);
  color: var(--color-accent);
}

/* ===================================
   ARTICLE / BLOG
   =================================== */
.article-header {
  padding: 36px 0 24px;
}

.article-meta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--color-text-light);
  margin-bottom: 12px;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.article-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform .25s;
}

.article-card:hover { transform: translateY(-4px); }

.article-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.article-card-body {
  padding: 20px;
}

.article-card h3 {
  font-size: 17px;
  color: var(--color-text-white);
  margin-bottom: 8px;
  line-height: 1.4;
}

.article-card p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* ===================================
   FOOTER - Heavy info architecture
   =================================== */
.site-footer {
  background: #080e1c;
  border-top: 1px solid var(--color-border);
  padding: 56px 0 0;
  margin-top: 64px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 36px;
  padding-bottom: 40px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin: 14px 0;
}

.footer-brand .footer-email {
  color: var(--color-primary-light);
  font-size: 14px;
}

.footer-col h4 {
  color: var(--color-text-white);
  font-size: 16px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-primary);
  display: inline-block;
}

.footer-col ul {
  list-style: none;
  padding: 0;
}

.footer-col li { margin-bottom: 10px; }

.footer-col a {
  color: var(--color-text-light);
  font-size: 14px;
  transition: color .2s;
}

.footer-col a:hover { color: var(--color-accent); }

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: var(--color-text-light);
}

.footer-bottom p { margin-bottom: 4px; }

/* ===================================
   POLICY PAGE
   =================================== */
.policy-content {
  max-width: 860px;
  margin: 0 auto;
}

.policy-content h2 {
  font-size: clamp(20px, 2.5vw, 28px);
  color: var(--color-text-white);
  margin: 36px 0 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.policy-content h3 {
  font-size: 18px;
  color: var(--color-primary-light);
  margin: 24px 0 10px;
}

.policy-content p {
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 14px;
}

.policy-content ul {
  padding-left: 24px;
  margin-bottom: 16px;
}

.policy-content li {
  margin-bottom: 8px;
  font-size: 15px;
  line-height: 1.7;
}

/* ===================================
   LOGIN / REGISTER PAGES
   =================================== */
.auth-hero {
  background: linear-gradient(160deg, var(--color-bg-card) 0%, #0d1b3e 100%);
  padding: 48px 0;
  text-align: center;
}

.auth-form-visual {
  max-width: 480px;
  margin: 0 auto;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  text-align: center;
}

.auth-form-visual h2 {
  font-size: 22px;
  color: var(--color-text-white);
  margin-bottom: 14px;
}

/* ===================================
   404 PAGE
   =================================== */
.error-hero {
  text-align: center;
  padding: 80px 0;
}

.error-code {
  font-size: 120px;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 16px;
}

/* ===================================
   RESPONSIVE - Tablet
   =================================== */
@media (max-width: 1024px) {
  .card-grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
  .step-cards { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonial-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .content-grid { grid-template-columns: 1fr; }
}

/* ===================================
   RESPONSIVE - Mobile (max-width: 900px)
   =================================== */
@media (max-width: 900px) {
  .header-inner {
    min-height: 64px;
    grid-template-columns: 140px 1fr auto;
    gap: 8px;
  }

  .brand-wrap {
    width: 140px;
    min-width: 140px;
    max-width: 140px;
    height: 48px;
  }

  .brand-logo {
    width: 140px;
    max-height: 42px;
  }

  .primary-nav {
    position: fixed;
    left: 12px;
    right: 12px;
    top: 72px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 14px;
    border-radius: var(--radius-lg);
    max-height: calc(100vh - 96px);
    overflow-y: auto;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    box-shadow: 0 12px 40px rgba(0,0,0,.5);
    z-index: 1100;
  }

  .primary-nav.is-open {
    display: flex;
  }

  .primary-nav a {
    max-width: none;
    width: 100%;
    padding: 14px 12px;
    text-overflow: initial;
    font-size: 15px;
    border-bottom: 1px solid var(--color-border);
  }

  .primary-nav a:last-child { border-bottom: none; }

  .header-actions {
    justify-content: flex-end;
    gap: 6px;
  }

  .header-actions .btn {
    min-height: 36px;
    padding: 0 12px;
    font-size: 13px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-more {
    display: none !important;
  }

  .card-grid.cols-2,
  .card-grid.cols-3,
  .card-grid.cols-4 {
    grid-template-columns: 1fr;
  }

  .step-cards { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .article-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .testimonial-grid { grid-template-columns: 1fr; }

  .hero-home { padding: 40px 0 32px; }
  .hero-inner { padding: 36px 0 28px; }
  .content-section { padding: 40px 0; }
  .faq-section { padding: 40px 0; }

  .cta-block {
    margin: 32px 16px;
    padding: 40px 20px;
    border-radius: var(--radius-md);
  }

  .data-table { font-size: 13px; }
  .data-table th, .data-table td { padding: 10px 12px; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .header-actions .btn { min-height: 34px; padding: 0 10px; font-size: 12px; }
  .hero-home h1 { font-size: 22px; }
}

/* ===================================
   UTILITY
   =================================== */
.mt-0 { margin-top: 0; }
.mt-24 { margin-top: 24px; }
.mt-48 { margin-top: 48px; }
.mb-0 { margin-bottom: 0; }
.mb-24 { margin-bottom: 24px; }
.mb-48 { margin-bottom: 48px; }
.text-center { text-align: center; }
.text-accent { color: var(--color-accent); }
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
}