:root {
  --color-primary: #0d7c5f;
  --color-primary-dark: #065e47;
  --color-primary-soft: rgba(13,124,95,0.08);
  --color-secondary: #d4a017;
  --color-accent: #e8683a;
  --color-bg: #faf9f7;
  --color-bg-soft: #f3f0ec;
  --color-surface: #ffffff;
  --color-card: #ffffff;
  --color-card-alt: #f9f7f4;
  --color-border: rgba(13,124,95,0.12);
  --color-text: #1a2e28;
  --color-text-soft: #4a5f58;
  --color-text-muted: #7a8e87;
  --color-footer-bg: #112e25;
  --color-footer-text: #d4e8e0;
  --shadow-header: 0 2px 20px rgba(13,124,95,0.08);
  --shadow-card: 0 4px 24px rgba(13,124,95,0.06);
  --shadow-card-hover: 0 8px 32px rgba(13,124,95,0.12);
  --shadow-button: 0 2px 12px rgba(13,124,95,0.15);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-pill: 999px;
  --fs-h1: clamp(1.8rem, 4vw, 3rem);
  --fs-h2: clamp(1.4rem, 3vw, 2.2rem);
  --fs-h3: clamp(1.1rem, 2vw, 1.5rem);
  --fs-body: 17px;
  --lh-body: 1.8;
  --section-y: clamp(48px, 6vw, 80px);
  --container-max: 1200px;
  --header-h: 72px;
  --motion-normal: 0.3s;
}

html { scroll-behavior: smooth; }
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
  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-primary); text-decoration: none; transition: color var(--motion-normal); }
a:hover { color: var(--color-primary-dark); }
ul { list-style: none; }
:focus-visible { outline: 3px solid var(--color-primary); outline-offset: 2px; border-radius: 4px; }

.container { width: 100%; max-width: var(--container-max); margin: 0 auto; padding: 0 20px; }
.section-pad { padding: var(--section-y) 0; }
.alt-bg { background: var(--color-bg-soft); }
.text-center { text-align: center; }
.mt-3 { margin-top: 1.5rem; }
.rounded-img { border-radius: var(--radius-lg); box-shadow: var(--shadow-card); }
.full-width-img { width: 100%; border-radius: var(--radius-md); margin: 2rem 0; box-shadow: var(--shadow-card); }

/* ===== HEADER ===== */
.site-header {
  position: sticky; top: 0; z-index: 1000; width: 100%;
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  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: rgba(255,255,255,0.9); font-weight: 500;
  border-radius: var(--radius-pill);
  transition: background var(--motion-normal), color var(--motion-normal);
}
.primary-nav a:hover, .primary-nav a.active {
  background: rgba(255,255,255,0.15); color: #fff;
}
.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-pill);
  font-weight: 600; font-size: 14px; line-height: 1;
  white-space: nowrap; cursor: pointer; border: none;
  transition: all var(--motion-normal); text-decoration: none; min-height: 42px;
}
.btn-login { background: rgba(255,255,255,0.15); color: #fff; border: 1px solid rgba(255,255,255,0.3); }
.btn-login:hover { background: rgba(255,255,255,0.25); color: #fff; }
.btn-register { background: var(--color-secondary); color: #1a1a1a; }
.btn-register:hover { background: #e8b830; }
.btn-primary-cta {
  background: linear-gradient(135deg, var(--color-primary), #1a9e78);
  color: #fff; box-shadow: var(--shadow-button);
  padding: 14px 28px; font-size: 16px;
}
.btn-primary-cta:hover { background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary)); color: #fff; transform: translateY(-2px); }
.btn-secondary-cta {
  background: transparent; color: var(--color-primary-dark);
  border: 2px solid var(--color-primary); padding: 12px 24px; font-size: 16px;
}
.btn-secondary-cta:hover { background: var(--color-primary-soft); }
.btn-block { width: 100%; text-align: center; }
.nav-toggle { display: none; flex: 0 0 40px; width: 40px; height: 40px;
  background: transparent; border: 1px solid rgba(255,255,255,0.3);
  border-radius: var(--radius-sm); cursor: pointer;
  flex-direction: column; align-items: center; justify-content: center; gap: 5px;
}
.nav-toggle span { display: block; width: 22px; height: 2px; background: #fff; border-radius: 2px; transition: all var(--motion-normal); }
.mobile-menu {
  display: none; position: fixed; left: 12px; right: 12px; top: 80px;
  background: var(--color-surface); border-radius: var(--radius-lg);
  box-shadow: 0 16px 48px rgba(0,0,0,0.15); padding: 16px;
  flex-direction: column; gap: 0; z-index: 999;
  max-height: calc(100vh - 100px); overflow-y: auto;
}
.mobile-menu.is-open { display: flex; }
.mobile-menu a {
  display: block; padding: 14px 16px; color: var(--color-text);
  font-weight: 500; border-radius: var(--radius-sm);
  transition: background var(--motion-normal);
}
.mobile-menu a:hover { background: var(--color-primary-soft); }

@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;
    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 { flex-basis: 40px; width: 40px; height: 40px; margin-left: 2px; }
}
@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; }
}

/* ===== HERO ===== */
.home-hero {
  background: radial-gradient(circle at 20% 30%, rgba(13,124,95,0.06), transparent 50%),
              linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-soft) 100%);
  padding: clamp(48px, 6vw, 80px) 0;
}
.hero-split { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.hero-badge {
  display: inline-block; background: var(--color-primary-soft);
  color: var(--color-primary-dark); padding: 8px 16px;
  border-radius: var(--radius-pill); font-weight: 600; font-size: 14px; margin-bottom: 16px;
}
h1 { font-size: var(--fs-h1); font-weight: 700; line-height: 1.25; color: var(--color-text); margin-bottom: 16px; }
h2 { font-size: var(--fs-h2); font-weight: 700; line-height: 1.3; color: var(--color-text); margin-bottom: 14px; }
h3 { font-size: var(--fs-h3); font-weight: 600; line-height: 1.35; margin-bottom: 10px; }
.hero-lead { font-size: 17px; line-height: 1.8; color: var(--color-text-soft); margin-bottom: 24px; }
.hero-cta-group { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 16px; }
.hero-note { font-size: 13px; color: var(--color-text-muted); }
.hero-card {
  background: var(--color-card); border: 1px solid var(--color-border);
  border-radius: var(--radius-xl); padding: 12px;
  box-shadow: var(--shadow-card);
}
.hero-img { border-radius: var(--radius-lg); width: 100%; }

/* ===== SECTIONS ===== */
.section-badge {
  display: inline-block; background: var(--color-primary-soft);
  color: var(--color-primary-dark); padding: 6px 14px;
  border-radius: var(--radius-pill); font-weight: 600; font-size: 13px; margin-bottom: 12px;
}
.section-intro { margin-bottom: 40px; }
.section-intro p { color: var(--color-text-soft); max-width: 700px; margin: 0 auto; }
.content-split { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; margin-bottom: 32px; }
.content-split.reverse .split-text { order: 1; }
.content-split.reverse .split-media { order: 2; }
.split-text p { margin-bottom: 16px; color: var(--color-text-soft); }
.cta-pair { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; }

/* ===== CARDS ===== */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 40px; }
.feature-card {
  background: var(--color-card); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: 28px 24px;
  box-shadow: var(--shadow-card); transition: all var(--motion-normal);
}
.feature-card:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-4px); }
.feature-icon { font-size: 32px; margin-bottom: 16px; }
.feature-card h3 { font-size: 18px; }
.feature-card p { font-size: 15px; color: var(--color-text-soft); }

.info-card {
  background: var(--color-card-alt); border: 1px solid var(--color-border);
  border-radius: var(--radius-md); padding: 20px;
  box-shadow: var(--shadow-card); transition: all var(--motion-normal); height: 100%;
}
.info-card:hover { box-shadow: var(--shadow-card-hover); }
.info-card h3 { font-size: 16px; color: var(--color-primary-dark); }
.info-card p { font-size: 15px; color: var(--color-text-soft); margin: 0; }
.info-card-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 20px; }
.info-card-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 20px; }
.info-card-grid.cols-2 { grid-template-columns: 1fr 1fr; }

.overview-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; margin-top: 28px; }
.overview-card {
  background: var(--color-card); border: 1px solid var(--color-border);
  border-radius: var(--radius-md); padding: 24px;
  box-shadow: var(--shadow-card);
}
.overview-card h3 { font-size: 16px; color: var(--color-primary-dark); margin-bottom: 8px; }
.overview-card p { font-size: 14px; color: var(--color-text-soft); margin: 0; }

.policy-summary-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; margin-top: 24px; }
.summary-card {
  background: linear-gradient(135deg, var(--color-primary-soft), rgba(212,160,23,0.06));
  border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 24px;
}
.summary-card h3 { font-size: 16px; color: var(--color-primary-dark); }
.summary-card p { font-size: 14px; color: var(--color-text-soft); margin: 0; }

/* ===== STEPS ===== */
.step-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; margin-top: 28px; }
.step-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.step-card {
  background: var(--color-card); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: 28px 24px;
  box-shadow: var(--shadow-card);
}
.step-card.wide { grid-column: span 2; }
.step-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--color-primary-soft); color: var(--color-primary-dark);
  font-weight: 700; font-size: 18px; margin-bottom: 14px;
}
.step-card h3 { font-size: 17px; }
.step-card p { font-size: 15px; color: var(--color-text-soft); margin: 0; }

/* ===== NOTE BOX ===== */
.note-box {
  border-left: 4px solid var(--color-primary); padding: 16px 20px;
  background: var(--color-primary-soft); border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-top: 16px;
}
.note-box p { margin: 0; font-size: 15px; color: var(--color-text-soft); }
.trust-panel { background: var(--color-card); border: 1px solid var(--color-border);
  border-radius: var(--radius-xl); padding: 32px; box-shadow: var(--shadow-card); }

/* ===== TABLE ===== */
.compare-table-wrap { margin-top: 32px; overflow-x: auto; -webkit-overflow-scrolling: touch;
  background: var(--color-card); border-radius: var(--radius-lg); box-shadow: var(--shadow-card); padding: 4px; }
.compare-table { width: 100%; border-collapse: collapse; }
.compare-table th { background: var(--color-primary-soft); color: var(--color-primary-dark); padding: 14px 18px; text-align: left; font-weight: 600; }
.compare-table td { padding: 14px 18px; border-top: 1px solid var(--color-border); }

/* ===== FAQ ===== */
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item { background: var(--color-card); border: 1px solid var(--color-border);
  border-radius: var(--radius-md); margin-bottom: 12px; box-shadow: var(--shadow-card); overflow: hidden; }
.faq-toggle { display: flex; width: 100%; justify-content: space-between; align-items: center;
  padding: 18px 24px; background: none; border: none; cursor: pointer;
  font-size: 16px; font-weight: 600; color: var(--color-text); text-align: left; line-height: 1.4; }
.faq-icon { font-size: 22px; color: var(--color-primary); flex-shrink: 0; margin-left: 12px; transition: transform var(--motion-normal); }
.faq-answer { display: none; padding: 0 24px 18px; }
.faq-answer p { color: var(--color-text-soft); margin: 0; }
.faq-item.is-open .faq-answer { display: block; }
.faq-item.is-open .faq-icon { transform: rotate(45deg); }

/* ===== BREADCRUMB ===== */
.breadcrumb { display: flex; align-items: center; gap: 8px; margin-bottom: 20px; font-size: 14px; color: var(--color-text-muted); }
.breadcrumb a { color: var(--color-primary); }
.breadcrumb span { color: var(--color-text-muted); }

/* ===== AUTH ===== */
.auth-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.auth-form-card {
  background: var(--color-card); border: 1px solid var(--color-border);
  border-radius: var(--radius-xl); padding: 40px; box-shadow: var(--shadow-card);
}
.auth-form { display: flex; flex-direction: column; gap: 16px; margin-top: 20px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-weight: 600; font-size: 14px; color: var(--color-text); }
.form-group input {
  padding: 12px 16px; border: 1px solid var(--color-border);
  border-radius: var(--radius-sm); font-size: 15px; background: var(--color-bg);
  transition: border-color var(--motion-normal), box-shadow var(--motion-normal);
}
.form-group input:focus { border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-soft); outline: none; }
.form-check { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; }
.form-check input { margin-top: 3px; }
.auth-alt { text-align: center; margin-top: 16px; font-size: 14px; color: var(--color-text-muted); }
.auth-info-panel { display: flex; flex-direction: column; gap: 20px; }
.auth-trust-card {
  background: var(--color-card-alt); border: 1px solid var(--color-border);
  border-radius: var(--radius-md); padding: 24px;
}
.auth-trust-card h3 { font-size: 16px; color: var(--color-primary-dark); margin-bottom: 12px; }
.auth-trust-card ul { padding-left: 20px; list-style: disc; }
.auth-trust-card li { margin-bottom: 8px; font-size: 14px; color: var(--color-text-soft); }
.auth-security-note { background: var(--color-primary-soft); border-radius: var(--radius-md); padding: 20px; }
.auth-security-note h3 { font-size: 15px; color: var(--color-primary-dark); margin-bottom: 8px; }
.auth-security-note p { font-size: 14px; color: var(--color-text-soft); margin: 0; }

/* ===== QUICK LINKS ===== */
.quick-links-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; margin-top: 20px; }
.quick-link-card {
  display: block; background: var(--color-card); border: 1px solid var(--color-border);
  border-radius: var(--radius-md); padding: 20px; text-align: center;
  font-weight: 600; color: var(--color-primary-dark);
  box-shadow: var(--shadow-card); transition: all var(--motion-normal);
}
.quick-link-card:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-2px); color: var(--color-primary); }

/* ===== FOOTER ===== */
.site-footer { background: linear-gradient(180deg, var(--color-footer-bg), #0a1f18); color: var(--color-footer-text); padding-top: 60px; }
.footer-inner { max-width: var(--container-max); margin: 0 auto; padding: 0 20px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
.footer-brand h3 { color: #fff; font-size: 20px; margin-bottom: 12px; }
.footer-brand p { font-size: 14px; line-height: 1.7; color: rgba(212,232,224,0.8); margin-bottom: 8px; }
.footer-links h4 { color: #fff; font-size: 15px; margin-bottom: 14px; font-weight: 600; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: rgba(212,232,224,0.7); font-size: 14px; transition: color var(--motion-normal); }
.footer-links a:hover { color: #fff; }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  border-top: 1px solid rgba(255,255,255,0.1); padding: 24px 0; margin-top: 40px;
}
.footer-bottom p { font-size: 13px; color: rgba(212,232,224,0.6); margin: 0; }
.footer-bottom a { color: rgba(212,232,224,0.7); font-size: 13px; }
.footer-bottom a:hover { color: #fff; }

/* ===== 404 ===== */
.error-section { min-height: 60vh; display: flex; align-items: center; }
.error-section h1 { font-size: 120px; color: var(--color-primary); line-height: 1; }
.error-section h2 { font-size: 28px; margin-bottom: 16px; }
.error-section p { color: var(--color-text-soft); margin-bottom: 24px; }

/* ===== AOS DEGRADE ===== */
[data-aos] { opacity: 1 !important; transform: none !important; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .hero-split { grid-template-columns: 1fr; gap: 32px; }
  .content-split { grid-template-columns: 1fr; gap: 24px; }
  .content-split.reverse .split-text { order: 0; }
  .content-split.reverse .split-media { order: 0; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .auth-layout { grid-template-columns: 1fr; }
  .step-card.wide { grid-column: span 1; }
  .step-grid.cols-3 { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .feature-grid { grid-template-columns: 1fr; }
  .info-card-pair { grid-template-columns: 1fr; }
  .info-card-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; gap: 10px; text-align: center; }
  .step-grid { grid-template-columns: 1fr; }
  .policy-summary-cards { grid-template-columns: 1fr; }
}
@media (max-width: 414px) {
  body { font-size: 16px; }
  h1 { font-size: 1.6rem; }
  h2 { font-size: 1.3rem; }
  .btn-primary-cta, .btn-secondary-cta { padding: 12px 20px; font-size: 15px; }
}
@media (max-width: 375px) {
  .container { padding: 0 12px; }
  .overview-cards { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}