:root {
  --color-primary: #6d28d9;
  --color-primary-dark: #4c1d95;
  --color-primary-soft: rgba(109,40,217,.12);
  --color-secondary: #db2777;
  --color-accent: #f59e0b;
  --color-bg: #0a0e1a;
  --color-bg-soft: #111827;
  --color-surface: #1e293b;
  --color-surface-strong: #334155;
  --color-card: rgba(30,41,59,.88);
  --color-card-alt: rgba(15,23,42,.92);
  --color-border: rgba(255,255,255,.08);
  --color-border-strong: rgba(255,255,255,.15);
  --color-text: #f1f5f9;
  --color-text-soft: #94a3b8;
  --color-text-muted: #64748b;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  --color-footer-bg: #020617;
  --color-footer-text: #94a3b8;
  --gradient-hero: linear-gradient(135deg, rgba(109,40,217,.18), rgba(219,39,119,.1));
  --gradient-button: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  --gradient-card: linear-gradient(180deg, rgba(109,40,217,.08), rgba(219,39,119,.04));
  --shadow-header: 0 2px 20px rgba(0,0,0,.4);
  --shadow-card: 0 4px 24px rgba(0,0,0,.3);
  --shadow-card-hover: 0 8px 32px rgba(109,40,217,.25);
  --shadow-button: 0 4px 16px rgba(109,40,217,.35);
  --shadow-soft: 0 2px 8px rgba(0,0,0,.2);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-pill: 999px;
  --font-base: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, "Noto Sans Bengali", sans-serif;
  --fs-h1: clamp(1.75rem, 4vw, 2.75rem);
  --fs-h2: clamp(1.35rem, 3vw, 2rem);
  --fs-h3: clamp(1.1rem, 2.2vw, 1.5rem);
  --fs-body: clamp(0.95rem, 1.8vw, 1.0625rem);
  --fs-nav: clamp(13px, .84vw, 15px);
  --lh-body: 1.85;
  --section-y: clamp(48px, 6vw, 80px);
  --container-max: 1200px;
  --header-h: 72px;
  --motion-normal: .3s;
  --ease-out: cubic-bezier(.25,.46,.45,.94);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-base);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--color-text); text-decoration: none; transition: color var(--motion-normal) var(--ease-out); }
a:hover { color: #f9a8d4; }
img { max-width: 100%; height: auto; display: block; }
button { cursor: pointer; border: none; background: none; font: inherit; color: inherit; }
ul, ol { list-style: none; }
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; } }

/* Container */
.container { width: 100%; max-width: var(--container-max); margin: 0 auto; padding: 0 clamp(16px, 4vw, 24px); }

/* ===== HEADER ===== */
.site-header {
  position: sticky; top: 0; z-index: 1000; width: 100%;
  background: rgba(10,14,26,.92); backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  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: var(--fs-nav); font-weight: 600; line-height: 1;
  white-space: nowrap; color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: all var(--motion-normal) var(--ease-out);
}
.primary-nav a:hover, .primary-nav a.active {
  color: #f9a8d4;
  background: rgba(109,40,217,.12);
}
.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;
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 10px 20px; border-radius: var(--radius-pill);
  font-weight: 700; font-size: 14px; white-space: nowrap;
  transition: all var(--motion-normal) var(--ease-out);
  min-height: 42px; text-decoration: none;
}
.btn-register {
  background: var(--gradient-button); color: #fff;
  box-shadow: var(--shadow-button);
}
.btn-register:hover { color: #fff; opacity: .92; transform: translateY(-1px); }
.btn-login {
  background: transparent; color: var(--color-text);
  border: 1px solid var(--color-border-strong);
}
.btn-login:hover { background: rgba(255,255,255,.06); color: #fff; }
.btn-primary {
  background: var(--gradient-button); color: #fff;
  box-shadow: var(--shadow-button); padding: 14px 28px; font-size: 16px;
}
.btn-primary:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 6px 24px rgba(109,40,217,.4); }
.btn-secondary {
  background: rgba(255,255,255,.06); color: var(--color-text);
  border: 1px solid var(--color-border-strong); padding: 14px 28px; font-size: 16px;
}
.btn-secondary:hover { background: rgba(255,255,255,.1); color: #fff; }

/* Nav Toggle */
.nav-toggle { display: none; flex: 0 0 40px; width: 40px; height: 40px;
  align-items: center; justify-content: center; flex-direction: column; gap: 5px;
  border-radius: var(--radius-sm); margin-left: 2px;
}
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--color-text);
  transition: all var(--motion-normal) var(--ease-out); border-radius: 2px;
}

/* Mobile Menu */
.mobile-menu {
  display: none; position: fixed; left: 12px; right: 12px;
  top: calc(var(--header-h) + 8px);
  background: var(--color-card-alt); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: 16px;
  box-shadow: var(--shadow-card); max-height: calc(100vh - var(--header-h) - 32px);
  overflow-y: auto; z-index: 999;
  backdrop-filter: blur(20px);
}
.mobile-menu.is-open { display: block; }
.mobile-nav { display: flex; flex-direction: column; gap: 4px; }
.mobile-nav a {
  display: block; padding: 14px 16px; color: var(--color-text);
  font-weight: 600; border-radius: var(--radius-sm);
  transition: background var(--motion-normal) var(--ease-out);
}
.mobile-nav a:hover { background: rgba(109,40,217,.15); color: #f9a8d4; }

@media (max-width: 1180px) {
  .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); }
  .primary-nav { display: none; }
  .header-actions {
    margin-left: auto; flex: 0 0 auto;
    display: flex; align-items: center; justify-content: flex-end;
    gap: clamp(5px, 1.6vw, 8px); white-space: nowrap;
  }
  .header-actions .btn {
    min-height: 40px; padding-inline: clamp(10px, 2.6vw, 14px);
    font-size: clamp(12px, 3.2vw, 14px);
  }
  .nav-toggle {
    display: inline-flex; flex: 0 0 40px; width: 40px; height: 40px;
    align-items: center; justify-content: center;
    margin-left: 2px;
  }
}
@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-inline: 9px; font-size: 12px; }
  .nav-toggle { flex-basis: 38px; width: 38px; height: 38px; }
}

/* ===== SECTIONS ===== */
.section { padding: var(--section-y) 0; }
.section-alt { background: var(--gradient-hero); }
.section-dark { background: var(--color-bg-soft); }

/* Breadcrumb */
.breadcrumb-nav { padding: 16px 0 8px; }
.breadcrumb-list {
  display: flex; align-items: center; gap: 8px;
  font-size: .875rem; color: var(--color-text-muted);
}
.breadcrumb-list a { color: var(--color-text-soft); }
.breadcrumb-list a:hover { color: var(--color-text); }
.breadcrumb-list li:not(:last-child)::after { content: "/"; margin-left: 8px; color: var(--color-text-muted); }

/* Hero Variants */
.hero-home {
  padding: clamp(60px, 8vw, 100px) 0 clamp(40px, 5vw, 60px);
  background: radial-gradient(circle at 20% 30%, rgba(109,40,217,.2), transparent 50%),
              radial-gradient(circle at 80% 60%, rgba(219,39,119,.12), transparent 40%);
}
.hero-inner {
  padding: clamp(24px, 3vw, 40px); border-radius: var(--radius-xl);
  background: var(--color-card); border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
}
.hero-badge {
  display: inline-block; padding: 6px 16px; border-radius: var(--radius-pill);
  background: var(--color-primary-soft); color: #e9d5ff;
  border: 1px solid rgba(109,40,217,.3); font-size: .875rem;
  font-weight: 600; margin-bottom: 16px;
}
.hero-title { font-size: var(--fs-h1); font-weight: 800; line-height: 1.2; margin-bottom: 20px; }
.hero-lead { font-size: clamp(1rem, 1.8vw, 1.125rem); color: var(--color-text-soft); line-height: 1.8; margin-bottom: 24px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; }

/* Stats Grid */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 32px; }
.stat-box {
  padding: 20px 16px; text-align: center; border-radius: var(--radius-md);
  background: var(--gradient-card); border: 1px solid var(--color-border);
}
.stat-value { font-size: 1.5rem; font-weight: 800; margin-bottom: 4px; }
.stat-label { font-size: .85rem; color: var(--color-text-soft); }
@media (max-width: 640px) { .stats-grid { grid-template-columns: repeat(2, 1fr); } }

/* Content Image */
.content-img {
  width: 100%; border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card); margin: 28px 0;
}

/* Two Column Layout */
.two-col { display: grid; grid-template-columns: 1fr 380px; gap: 32px; align-items: start; }
@media (max-width: 1024px) { .two-col { grid-template-columns: 1fr; } }

/* Prose */
.prose { max-width: 820px; }
.prose h2 { font-size: var(--fs-h2); font-weight: 800; margin: 40px 0 18px; line-height: 1.3; }
.prose h3 { font-size: var(--fs-h3); font-weight: 700; margin: 28px 0 12px; line-height: 1.35; }
.prose p { margin-bottom: 18px; color: var(--color-text-soft); line-height: var(--lh-body); }
.prose ul, .prose ol { margin: 16px 0; padding-left: 24px; }
.prose li { margin-bottom: 10px; color: var(--color-text-soft); }
.prose strong { color: var(--color-text); }

/* Cards */
.card-grid { display: grid; gap: 20px; }
.card-grid-2 { grid-template-columns: repeat(2, 1fr); }
.card-grid-3 { grid-template-columns: repeat(3, 1fr); }
.card-grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .card-grid-3, .card-grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .card-grid-2, .card-grid-3, .card-grid-4 { grid-template-columns: 1fr; } }

.feature-card {
  padding: 24px; border-radius: var(--radius-lg);
  background: var(--color-card); border: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
  transition: all var(--motion-normal) var(--ease-out);
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); border-color: rgba(109,40,217,.3); }
.feature-icon {
  width: 52px; height: 52px; border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  background: var(--gradient-button); color: #fff; font-size: 1.3rem;
  margin-bottom: 16px; box-shadow: var(--shadow-button);
}
.feature-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; }
.feature-card p { font-size: .9rem; color: var(--color-text-soft); margin: 0; line-height: 1.7; }

/* Glass Card (sidebar) */
.glass-card {
  padding: 24px; border-radius: var(--radius-lg);
  background: var(--color-card-alt); border: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft); margin-bottom: 20px;
}
.glass-card h2, .glass-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 14px; }
.glass-card p { font-size: .9rem; color: var(--color-text-soft); line-height: 1.7; }

/* Side Navigation */
.side-nav { display: flex; flex-direction: column; gap: 8px; }
.side-nav a {
  display: block; padding: 12px 16px; border-radius: var(--radius-sm);
  background: rgba(109,40,217,.06); border: 1px solid var(--color-border);
  color: var(--color-text-soft); font-weight: 500; font-size: .9rem;
  transition: all var(--motion-normal) var(--ease-out);
}
.side-nav a:hover { background: rgba(219,39,119,.1); color: #fff; }

/* Info Card */
.info-card {
  padding: 24px; border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(109,40,217,.08), rgba(219,39,119,.05));
  border: 1px solid rgba(109,40,217,.2);
}
.info-card h2, .info-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; }
.info-card p { font-size: .9rem; color: var(--color-text-soft); margin-bottom: 8px; }

/* CTA Section */
.cta-section {
  padding: 48px; border-radius: var(--radius-xl);
  background: var(--gradient-hero); border: 1px solid rgba(109,40,217,.2);
  text-align: center; margin: var(--section-y) 0;
}
.cta-section h2 { font-size: var(--fs-h2); margin-bottom: 16px; }
.cta-section p { color: var(--color-text-soft); margin-bottom: 24px; max-width: 600px; margin-left: auto; margin-right: auto; }
.cta-buttons { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }

/* FAQ */
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  border-radius: var(--radius-md); background: var(--color-card);
  border: 1px solid var(--color-border); overflow: hidden;
}
.faq-trigger {
  width: 100%; padding: 18px 20px; display: flex; align-items: center;
  justify-content: space-between; gap: 16px;
  font-weight: 700; font-size: 1rem; text-align: left;
  color: var(--color-text); background: none; cursor: pointer;
  transition: background var(--motion-normal);
}
.faq-trigger:hover { background: rgba(109,40,217,.06); }
.faq-trigger::after {
  content: "+"; font-size: 1.25rem; font-weight: 300; color: var(--color-text-muted);
  transition: transform var(--motion-normal);
  flex-shrink: 0;
}
.faq-trigger[aria-expanded="true"]::after { content: "−"; }
.faq-answer {
  max-height: 0; overflow: hidden; transition: max-height .4s var(--ease-out);
}
.faq-answer-inner { padding: 0 20px 18px; color: var(--color-text-soft); line-height: 1.8; }

/* Auth Pages */
.auth-layout { display: grid; grid-template-columns: 1.1fr .9fr; gap: 28px; align-items: stretch; }
@media (max-width: 900px) { .auth-layout { grid-template-columns: 1fr; } }
.auth-form-card {
  padding: 32px; border-radius: var(--radius-xl);
  background: var(--color-card); border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
}
.form-group { margin-bottom: 18px; }
.form-label { display: block; margin-bottom: 6px; font-weight: 600; font-size: .9rem; }
.form-input {
  width: 100%; padding: 12px 16px; border-radius: var(--radius-sm);
  background: var(--color-bg); border: 1px solid var(--color-border-strong);
  color: var(--color-text); font-size: .95rem; font-family: inherit;
  transition: border-color var(--motion-normal);
}
.form-input:focus { border-color: var(--color-primary); outline: none; box-shadow: 0 0 0 3px rgba(109,40,217,.2); }
.form-check { display: flex; align-items: center; gap: 8px; margin-bottom: 18px; font-size: .9rem; }

/* Step List */
.step-list { display: flex; flex-direction: column; gap: 16px; }
.step-item {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 20px; border-radius: var(--radius-md);
  background: var(--color-card); border: 1px solid var(--color-border);
}
.step-number {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--gradient-button); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1.1rem; flex-shrink: 0;
}
.step-content h3 { font-size: 1rem; font-weight: 700; margin-bottom: 6px; }
.step-content p { font-size: .9rem; color: var(--color-text-soft); margin: 0; }

/* Policy Layout */
.policy-layout { max-width: 860px; margin: 0 auto; }
.policy-toc {
  padding: 24px; border-radius: var(--radius-lg);
  background: var(--color-card); border: 1px solid var(--color-border);
  margin-bottom: 32px;
}
.policy-toc h3 { font-size: 1rem; font-weight: 700; margin-bottom: 12px; }
.policy-toc ol { padding-left: 20px; }
.policy-toc li { margin-bottom: 6px; }
.policy-toc a { color: #c4b5fd; font-size: .9rem; }
.policy-note {
  padding: 18px 20px; border-radius: var(--radius-md);
  background: rgba(245,158,11,.08); border-left: 4px solid var(--color-warning);
  margin: 24px 0; color: var(--color-text-soft); font-size: .9rem;
}
.policy-updated {
  display: inline-block; padding: 8px 16px; border-radius: var(--radius-pill);
  background: var(--color-primary-soft); font-size: .85rem; color: #e9d5ff;
  margin-bottom: 20px;
}

/* Testimonial */
.testimonial-card {
  padding: 24px; border-radius: var(--radius-lg);
  background: var(--color-card); border: 1px solid var(--color-border);
}
.testimonial-card .rating { color: #fbbf24; margin-bottom: 12px; }
.testimonial-card blockquote { font-style: italic; color: var(--color-text-soft); margin-bottom: 14px; line-height: 1.7; }
.testimonial-card cite { font-weight: 700; font-style: normal; display: block; }
.testimonial-card .location { color: #f9a8d4; font-size: .9rem; font-weight: 600; margin-top: 4px; }

/* Trust Strip */
.trust-strip {
  display: flex; justify-content: center; flex-wrap: wrap;
  gap: 32px; padding: 32px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.trust-item { text-align: center; }
.trust-item i { font-size: 1.5rem; color: var(--color-primary); margin-bottom: 6px; display: block; }
.trust-item span { font-size: .85rem; color: var(--color-text-soft); }

/* ===== FOOTER ===== */
.site-footer {
  background: var(--color-footer-bg); border-top: 1px solid var(--color-border);
  margin-top: clamp(48px, 6vw, 80px);
}
.footer-inner {
  max-width: var(--container-max); margin: 0 auto;
  padding: clamp(40px, 5vw, 64px) clamp(16px, 4vw, 24px) 32px;
  display: grid; grid-template-columns: 1.2fr 2fr; gap: 48px;
}
@media (max-width: 900px) { .footer-inner { grid-template-columns: 1fr; gap: 32px; } }
.footer-brand img { height: 42px; width: auto; margin-bottom: 16px; }
.footer-brand p { color: var(--color-footer-text); font-size: .9rem; line-height: 1.7; margin-bottom: 12px; }
.footer-email a { color: #c4b5fd; }
.footer-links { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
@media (max-width: 768px) { .footer-links { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .footer-links { grid-template-columns: 1fr; } }
.footer-col h3 { font-size: .95rem; font-weight: 700; margin-bottom: 14px; color: var(--color-text); }
.footer-col a { display: block; padding: 5px 0; font-size: .875rem; color: var(--color-footer-text); transition: color var(--motion-normal); }
.footer-col a:hover { color: #fff; }
.footer-bottom {
  max-width: var(--container-max); margin: 0 auto;
  padding: 20px clamp(16px, 4vw, 24px);
  border-top: 1px solid var(--color-border);
  text-align: center;
}
.footer-bottom p { font-size: .8rem; color: var(--color-text-muted); }

/* Responsive */
@media (max-width: 414px) {
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; }
  .auth-form-card { padding: 24px 18px; }
}