:root {
  --color-primary: #dc3232;
  --color-primary-dark: #b91c1c;
  --color-primary-soft: rgba(220,50,50,0.1);
  --color-secondary: #f97316;
  --color-accent: #fbbf24;
  --color-bg: #0a0f1a;
  --color-bg-soft: #111827;
  --color-surface: #1e293b;
  --color-surface-strong: #334155;
  --color-card: #1e293b;
  --color-card-alt: #0f172a;
  --color-border: #334155;
  --color-text: #e5e7eb;
  --color-text-soft: #9ca3af;
  --color-text-muted: #6b7280;
  --color-footer-bg: #0f172a;
  --color-footer-text: #9ca3af;
  --gradient-hero: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  --gradient-button: linear-gradient(90deg, #dc3232 0%, #f97316 100%);
  --gradient-cta: linear-gradient(135deg, #b91c1c 0%, #dc3232 100%);
  --shadow-header: 0 4px 20px rgba(0,0,0,0.3);
  --shadow-card: 0 5px 20px rgba(0,0,0,0.3);
  --shadow-card-hover: 0 15px 40px rgba(220,50,50,0.2);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-card: 15px;
  --fs-h1: clamp(1.8rem, 3.5vw, 3rem);
  --fs-h2: clamp(1.4rem, 2.5vw, 2.2rem);
  --fs-h3: clamp(1.1rem, 2vw, 1.5rem);
  --fs-body: 17px;
  --lh-body: 1.85;
  --container-max: 1180px;
  --container-narrow: 820px;
  --section-y: clamp(48px, 6vw, 80px);
  --header-h: 72px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; 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-secondary); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--color-accent); }
: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; } }

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

/* Header */
.site-header { position: sticky; top: 0; z-index: 1000; background: linear-gradient(90deg, var(--color-primary-dark), var(--color-primary)); box-shadow: var(--shadow-header); }
.site-header.scrolled { box-shadow: 0 4px 30px rgba(0,0,0,0.5); }
.header-inner { width: 100%; max-width: none; padding-left: clamp(10px, 1.2vw, 20px); padding-right: clamp(10px, 1.2vw, 20px); display: flex; align-items: center; gap: clamp(10px, 1vw, 18px); min-height: var(--header-h); }
.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: #fff; text-decoration: none; font-weight: 600; transition: all 0.2s; border-radius: var(--radius-sm); }
.primary-nav a:hover { color: var(--color-accent); background: rgba(255,255,255,0.1); }
.header-actions { flex: 0 0 auto; display: flex; align-items: center; 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; text-decoration: none; cursor: pointer; transition: all 0.2s; border: none; font-size: 14px; white-space: nowrap; min-height: 42px; }
.btn-login { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.5); }
.btn-login:hover { background: rgba(255,255,255,0.1); color: #fff; border-color: #fff; }
.btn-register { background: var(--color-accent); color: #1a1a1a; font-weight: 700; }
.btn-register:hover { background: #fcd34d; transform: translateY(-1px); }
.nav-toggle { display: none; flex: 0 0 40px; width: 40px; height: 40px; align-items: center; justify-content: center; background: rgba(255,255,255,0.15); border: 1px solid rgba(255,255,255,0.3); border-radius: var(--radius-sm); color: #fff; cursor: pointer; margin-left: 2px; }
.mobile-menu { display: none; position: fixed; left: 12px; right: 12px; top: calc(var(--header-h) + 8px); flex-direction: column; padding: 16px; background: var(--color-surface); border-radius: var(--radius-lg); box-shadow: 0 20px 60px rgba(0,0,0,0.5); max-height: calc(100vh - 96px); overflow-y: auto; z-index: 999; }
.mobile-menu.is-open { display: flex; }
.mobile-menu a { display: block; padding: 14px 16px; color: var(--color-text); font-size: 16px; font-weight: 600; border-radius: var(--radius-sm); }
.mobile-menu a:hover { background: var(--color-primary-soft); color: var(--color-primary); }

@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); 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); }
  .header-actions .btn { min-height: 40px; padding-inline: clamp(10px, 2.6vw, 14px); font-size: clamp(12px, 3.2vw, 14px); }
}
@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; }
}

/* Breadcrumb */
.breadcrumb { padding: 14px 20px; max-width: var(--container-max); margin: 0 auto; }
.breadcrumb ol { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; font-size: 14px; color: var(--color-text-muted); }
.breadcrumb li::before { content: "/"; margin-right: 6px; }
.breadcrumb li:first-child::before { content: ""; margin: 0; }
.breadcrumb a { color: var(--color-text-soft); }

/* Hero */
.home-hero { background: var(--gradient-hero); padding: clamp(60px, 8vw, 100px) 20px; text-align: center; border-bottom: 4px solid var(--color-primary); position: relative; overflow: hidden; }
.home-hero::before { content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: radial-gradient(circle at 50% 50%, rgba(220,50,50,0.1) 0%, transparent 70%); }
.hero-inner { max-width: 820px; margin: 0 auto; position: relative; z-index: 1; }
.home-hero h1 { font-size: var(--fs-h1); font-weight: 700; color: var(--color-primary); line-height: 1.25; margin: 0 0 20px; }
.home-hero p { font-size: clamp(16px, 1.8vw, 20px); color: #f3f4f6; margin: 0 0 30px; }
.hero-cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn-primary-hero { background: var(--gradient-button); color: #fff; padding: 15px 36px; font-size: 18px; font-weight: 700; border-radius: 50px; box-shadow: 0 8px 25px rgba(220,50,50,0.4); }
.btn-primary-hero:hover { transform: translateY(-2px); box-shadow: 0 12px 35px rgba(220,50,50,0.5); color: #fff; }
.btn-secondary-hero { background: transparent; color: #fff; padding: 15px 36px; font-size: 18px; font-weight: 700; border: 2px solid rgba(255,255,255,0.5); border-radius: 50px; }
.btn-secondary-hero:hover { background: rgba(255,255,255,0.1); color: #fff; }
.btn-block { display: block; width: 100%; text-align: center; }

/* Split Hero */
.split-hero { background: var(--gradient-hero); padding: clamp(40px,6vw,80px) 20px; border-bottom: 4px solid var(--color-primary); }
.split-hero .container-wide { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.split-hero h1 { font-size: var(--fs-h1); color: var(--color-primary); margin: 0 0 18px; }
.split-hero p { font-size: 18px; margin: 0 0 24px; }
@media (max-width: 768px) { .split-hero .container-wide { grid-template-columns: 1fr; } }

/* Page Title Bar */
.page-title-bar { background: var(--gradient-hero); padding: clamp(40px,5vw,60px) 20px; border-bottom: 3px solid var(--color-primary); }
.page-title-bar h1 { font-size: var(--fs-h1); color: var(--color-primary); margin: 0 0 14px; }
.page-title-bar p { font-size: 18px; margin: 0; color: #d1d5db; }

/* Content Sections */
.content-section { padding: var(--section-y) 0; }
.content-section.alt-bg { background: var(--color-bg-soft); }
.content-section h2 { font-size: var(--fs-h2); color: var(--color-primary); margin: 0 0 18px; font-weight: 700; }
.content-section h3 { font-size: var(--fs-h3); color: var(--color-secondary); margin: 28px 0 12px; font-weight: 600; }
.content-section p { margin: 0 0 18px; line-height: var(--lh-body); }
.content-image { width: 100%; max-width: 800px; border-radius: var(--radius-card); margin: 30px auto; border: 3px solid var(--color-primary); box-shadow: 0 10px 30px rgba(220,50,50,0.15); }

/* Feature Grid */
.home-features { padding: var(--section-y) 0; background: var(--color-bg-soft); }
.home-features h2 { font-size: var(--fs-h2); color: var(--color-primary); text-align: center; margin: 0 0 40px; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 40px; }
.feature-card { background: linear-gradient(135deg, var(--color-surface), var(--color-surface-strong)); border: 2px solid var(--color-border); border-radius: var(--radius-card); padding: 30px; transition: all 0.3s; }
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-card-hover); border-color: var(--color-primary); }
.feature-icon { margin-bottom: 18px; color: var(--color-primary); }
.feature-card h3 { color: var(--color-secondary); font-weight: 700; margin: 0 0 12px; }
.feature-card p { color: var(--color-text-soft); margin: 0; }
@media (max-width: 900px) { .feature-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .feature-grid { grid-template-columns: 1fr; } }

/* Table */
.table-scroll { overflow-x: auto; margin: 20px 0; }
.data-table { width: 100%; border-collapse: collapse; background: var(--color-surface); border-radius: var(--radius-md); overflow: hidden; }
.data-table th { background: var(--gradient-cta); color: #fff; padding: 15px; font-weight: 700; text-align: left; }
.data-table td { padding: 15px; border-bottom: 1px solid var(--color-border); }
.data-table tr:hover { background: var(--color-primary-soft); }

/* CTA Section */
.home-cta { padding: var(--section-y) 20px; }
.cta-inner { max-width: 700px; margin: 0 auto; text-align: center; background: var(--gradient-cta); border-radius: var(--radius-lg); padding: clamp(40px,5vw,60px); }
.cta-inner h2 { color: #fff; font-size: var(--fs-h2); margin: 0 0 14px; }
.cta-inner p { color: #fef3c7; font-size: 18px; margin: 0 0 24px; }
.section-cta { text-align: center; padding: 40px; background: var(--color-surface); border-radius: var(--radius-lg); margin-top: 40px; border: 2px solid var(--color-border); }
.section-cta h3 { color: var(--color-primary); margin: 0 0 12px; }
.section-cta p { margin: 0 0 20px; }

/* FAQ */
.faq-list { margin: 20px 0; }
.faq-item { background: var(--color-surface); border: 2px solid var(--color-border); border-radius: var(--radius-md); margin-bottom: 12px; overflow: hidden; }
.faq-toggle { display: flex; align-items: center; justify-content: space-between; width: 100%; padding: 18px 20px; background: none; border: none; color: var(--color-primary); font-size: 16px; font-weight: 700; cursor: pointer; text-align: left; gap: 12px; }
.faq-toggle:hover { background: var(--color-primary-soft); }
.faq-toggle span { flex: 1; }
.faq-arrow { flex-shrink: 0; transition: transform 0.3s; }
.faq-toggle[aria-expanded="true"] .faq-arrow { transform: rotate(180deg); }
.faq-answer { display: none; padding: 0 20px 18px; color: var(--color-text-soft); }

/* Auth Pages */
.auth-section { padding: var(--section-y) 0; }
.auth-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; max-width: var(--container-max); margin: 0 auto; padding: 0 20px; }
.auth-form-card { background: var(--color-surface); border-radius: var(--radius-lg); padding: 40px; border: 2px solid var(--color-border); }
.auth-form-card h1 { font-size: var(--fs-h2); color: var(--color-primary); margin: 0 0 14px; }
.auth-info-panel { display: flex; flex-direction: column; gap: 20px; }
.trust-card { background: var(--color-surface); border-radius: var(--radius-md); padding: 24px; border-left: 4px solid var(--color-primary); }
.trust-card h3 { color: var(--color-secondary); margin: 0 0 8px; }
.trust-card p { margin: 0; color: var(--color-text-soft); }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 600; color: var(--color-text); }
.form-group input { width: 100%; padding: 14px 16px; background: var(--color-card-alt); border: 2px solid var(--color-border); border-radius: var(--radius-sm); color: var(--color-text); font-size: 16px; }
.form-group input:focus { border-color: var(--color-primary); outline: none; box-shadow: 0 0 0 3px var(--color-primary-soft); }
.form-note { text-align: center; margin-top: 18px; color: var(--color-text-muted); }
.auth-form .btn { margin-top: 10px; }
@media (max-width: 768px) { .auth-layout { grid-template-columns: 1fr; } }

/* Register */
.register-hero { padding: var(--section-y) 0; background: var(--gradient-hero); }
.register-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; max-width: var(--container-max); margin: 0 auto; padding: 0 20px; }
.register-form-card { background: var(--color-surface); border-radius: var(--radius-lg); padding: 40px; border: 2px solid var(--color-border); }
.register-form-card h1 { font-size: var(--fs-h2); color: var(--color-primary); margin: 0 0 14px; }
.benefit-grid { display: grid; grid-template-columns: 1fr; gap: 14px; margin-top: 20px; }
.benefit-card { background: var(--color-surface); border-radius: var(--radius-md); padding: 20px; border-left: 4px solid var(--color-secondary); }
.benefit-card h3 { color: var(--color-secondary); margin: 0 0 6px; font-size: 16px; }
.benefit-card p { margin: 0; color: var(--color-text-soft); font-size: 14px; }
@media (max-width: 768px) { .register-layout { grid-template-columns: 1fr; } }

/* Steps */
.step-list, .step-flow { margin: 24px 0; }
.step-item { display: flex; gap: 18px; margin-bottom: 20px; align-items: flex-start; }
.step-num { flex-shrink: 0; width: 40px; height: 40px; background: var(--gradient-button); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 18px; }
.step-item h3 { margin: 0 0 6px; font-size: 18px; color: var(--color-secondary); }
.step-item p { margin: 0; color: var(--color-text-soft); }

/* Stats */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin: 30px 0; }
.stat-box { background: var(--color-surface); border-radius: var(--radius-md); padding: 24px; text-align: center; border: 2px solid var(--color-border); }
.stat-number { font-size: 2rem; font-weight: 700; color: var(--color-primary); }
.stat-label { font-size: 14px; color: var(--color-text-soft); margin-top: 6px; }
@media (max-width: 600px) { .stats-grid { grid-template-columns: repeat(2, 1fr); } }

/* Policy */
.policy-section { padding: var(--section-y) 0; }
.policy-section h1 { font-size: var(--fs-h1); color: var(--color-primary); margin: 0 0 20px; }
.policy-section h2 { font-size: var(--fs-h2); color: var(--color-primary); margin: 40px 0 14px; }
.policy-updated { background: var(--color-surface); border-left: 4px solid var(--color-secondary); padding: 14px 20px; border-radius: var(--radius-sm); margin-bottom: 30px; }

/* About */
.about-section { padding: var(--section-y) 0; }
.about-section h1 { font-size: var(--fs-h1); color: var(--color-primary); margin: 0 0 20px; }

/* FAQ Page */
.faq-page-section { padding: var(--section-y) 0; }
.faq-page-section h1 { font-size: var(--fs-h1); color: var(--color-primary); margin: 0 0 30px; }
.faq-groups { margin: 20px 0; }

/* Error */
.error-section { padding: 80px 0; text-align: center; }
.error-section h1 { font-size: 3rem; color: var(--color-primary); }

/* Footer */
.site-footer { background: var(--color-footer-bg); color: var(--color-footer-text); padding: 50px 0 20px; margin-top: 60px; border-top: 4px solid var(--color-primary); }
.footer-inner { max-width: var(--container-max); margin: 0 auto; padding: 0 20px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 30px; }
.footer-col h5 { color: var(--color-primary); font-weight: 700; margin: 0 0 18px; }
.footer-col a { display: block; color: var(--color-text-soft); margin-bottom: 10px; transition: all 0.2s; }
.footer-col a:hover { color: var(--color-primary); padding-left: 5px; }
.footer-brand p { margin: 0 0 12px; line-height: 1.7; }
.footer-bottom { margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--color-border); text-align: center; }
.footer-bottom p { margin: 0; font-size: 14px; }
@media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }

/* Swiper fallback */
.swiper:not(.swiper-initialized) { overflow-x: auto; display: flex; gap: 16px; }
/* AOS fallback - never hide content */
[data-aos] { opacity: 1 !important; transform: none !important; }
[data-aos].aos-animate { opacity: 1 !important; }