:root {
  --kkfb-bg: #07111f;
  --kkfb-bg-deep: #040914;
  --kkfb-card: #0e1b2e;
  --kkfb-card-soft: #12243a;
  --kkfb-green: #0ba66b;
  --kkfb-green-soft: rgba(11, 166, 107, .16);
  --kkfb-gold: #f5b942;
  --kkfb-red: #d72638;
  --kkfb-text: #f8fafc;
  --kkfb-muted: #94a3b8;
  --kkfb-border: rgba(255, 255, 255, .11);
  --kkfb-shadow: 0 22px 70px rgba(0, 0, 0, .32);
  --kkfb-radius: 8px;
  --kkfb-max: 1180px;
  --kkfb-font: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --kkfb-bn-font: "Noto Sans Bengali", "Hind Siliguri", Vrinda, var(--kkfb-font);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(11, 166, 107, .18), transparent 34rem),
    radial-gradient(circle at top right, rgba(245, 185, 66, .12), transparent 30rem),
    var(--kkfb-bg);
  color: var(--kkfb-text);
  font-family: var(--kkfb-bn-font);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

a,
button,
summary {
  cursor: pointer;
}

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

p {
  color: var(--kkfb-muted);
  margin: 0;
}

h1,
h2,
h3 {
  line-height: 1.08;
  letter-spacing: 0;
  margin: 0;
}

h1 {
  font-size: clamp(2.35rem, 5vw, 4.9rem);
}

h2 {
  font-size: clamp(1.75rem, 3vw, 3rem);
}

h3 {
  font-size: 1.1rem;
}

.skip-link,
.screen-reader-text {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link:focus {
  z-index: 1000;
  top: .75rem;
  left: .75rem;
  width: auto;
  height: auto;
  padding: .65rem .85rem;
  clip: auto;
  background: var(--kkfb-gold);
  color: #10131c;
  border-radius: var(--kkfb-radius);
}

.site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  background: rgba(4, 9, 20, .86);
  border-bottom: 1px solid var(--kkfb-border);
  backdrop-filter: blur(16px);
}

.site-header__inner {
  width: min(var(--kkfb-max), calc(100% - 32px));
  min-height: 74px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  min-width: max-content;
}

.site-brand__mark {
  width: 42px;
  height: 42px;
  display: inline-grid;
  place-items: center;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--kkfb-green), var(--kkfb-gold));
  color: #06111f;
  font-weight: 900;
}

.site-brand__logo {
  width: 24px;
  height: 24px;
  object-fit: contain;
  border-radius: 5px;
}

.site-brand--footer .site-brand__logo {
  width: 28px;
  height: 28px;
}

.site-brand__text {
  display: grid;
  gap: .05rem;
}

.site-brand__text strong {
  font-size: 1rem;
}

.site-brand__text small {
  color: var(--kkfb-muted);
  font-size: .78rem;
}

.primary-nav,
.primary-nav__menu {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: .25rem;
}

.primary-nav__menu,
.footer-nav__menu {
  padding: 0;
  margin: 0;
  list-style: none;
}

.primary-nav a,
.footer-nav a {
  color: #dbe7f5;
  font-size: .92rem;
  font-weight: 700;
  padding: .62rem .72rem;
  border-radius: 8px;
  transition: background .2s ease, color .2s ease;
}

.primary-nav a:hover,
.primary-nav a:focus-visible,
.footer-nav a:hover,
.footer-nav a:focus-visible {
  background: rgba(255, 255, 255, .08);
  color: #fff;
  outline: none;
}

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: .78rem 1rem;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 800;
  line-height: 1;
  transition: transform .2s ease, background .2s ease, border-color .2s ease;
}

.header-cta,
.button--primary {
  background: var(--kkfb-gold);
  color: #10131c;
}

.button--ghost {
  background: rgba(255, 255, 255, .06);
  border-color: var(--kkfb-border);
  color: var(--kkfb-text);
}

.button--text {
  color: var(--kkfb-gold);
  border-color: rgba(245, 185, 66, .35);
}

.header-cta:hover,
.button:hover {
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--kkfb-border);
  border-radius: 8px;
  background: rgba(255, 255, 255, .06);
  color: var(--kkfb-text);
}

.nav-toggle span:not(.screen-reader-text) {
  display: block;
  width: 19px;
  height: 2px;
  margin: 4px auto;
  background: currentColor;
  border-radius: 2px;
}

.site-main {
  overflow: hidden;
}

.hero,
.page-hero,
.section {
  width: min(var(--kkfb-max), calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  min-height: calc(100vh - 74px);
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(340px, .76fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 4.5rem);
  padding: clamp(3rem, 7vw, 6rem) 0;
}

.hero__content,
.page-hero__content,
.section__head {
  display: grid;
  gap: 1rem;
}

.hero__lead {
  max-width: 680px;
  font-size: clamp(1.03rem, 1.6vw, 1.22rem);
}

.hero__note {
  max-width: 700px;
  padding: .9rem 1rem;
  color: #d7f6e8;
  background: var(--kkfb-green-soft);
  border: 1px solid rgba(11, 166, 107, .32);
  border-radius: var(--kkfb-radius);
}

.hero__actions,
.hero__badges {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .7rem;
}

.hero__badges span {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  padding: .42rem .7rem;
  border: 1px solid var(--kkfb-border);
  border-radius: 999px;
  color: #cfe5f7;
  background: rgba(255, 255, 255, .05);
  font-size: .86rem;
  font-weight: 700;
}

.eyebrow {
  color: var(--kkfb-gold);
  font-size: .78rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero__visual {
  min-width: 0;
}

.phone-shell {
  position: relative;
  padding: 1rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, .1), rgba(255, 255, 255, .04));
  border: 1px solid var(--kkfb-border);
  border-radius: 28px;
  box-shadow: var(--kkfb-shadow);
}

.phone-shell .kkfb-image-placeholder,
.phone-shell .kkfb-slot-img {
  min-height: 520px;
  border-radius: 22px;
}

.phone-shell__cards {
  position: absolute;
  right: -1rem;
  bottom: 2rem;
  display: grid;
  gap: .6rem;
}

.phone-shell__cards span {
  min-width: 154px;
  padding: .72rem .85rem;
  background: rgba(7, 17, 31, .9);
  border: 1px solid var(--kkfb-border);
  border-radius: 8px;
  color: var(--kkfb-text);
  font-weight: 800;
  box-shadow: 0 14px 40px rgba(0, 0, 0, .24);
}

.section {
  padding: clamp(2.8rem, 6vw, 5rem) 0;
}

.section--compact {
  padding-top: 1.4rem;
  padding-bottom: 1.4rem;
}

.section__head {
  max-width: 760px;
  margin-bottom: 1.5rem;
}

.guide-card-grid,
.term-grid,
.page-content-grid,
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.guide-card,
.term-card,
.content-card,
.related-card,
.faq-item,
.score-panel,
.popular-list a,
.disclaimer-box,
.wp-content-frame {
  background: rgba(14, 27, 46, .86);
  border: 1px solid var(--kkfb-border);
  border-radius: var(--kkfb-radius);
  box-shadow: 0 18px 60px rgba(0, 0, 0, .18);
}

.guide-card {
  min-height: 320px;
  display: grid;
  grid-template-rows: 148px 1fr;
  overflow: hidden;
  transition: transform .2s ease, border-color .2s ease;
}

.guide-card:hover,
.related-card:hover,
.popular-list a:hover {
  transform: translateY(-2px);
  border-color: rgba(245, 185, 66, .45);
}

.guide-card__media {
  padding: .75rem;
}

.guide-card__media .kkfb-image-placeholder,
.guide-card__media .kkfb-slot-img {
  min-height: 124px;
}

.guide-card__body {
  display: grid;
  gap: .38rem;
  padding: 1rem;
}

.guide-card__body strong {
  color: var(--kkfb-text);
  font-size: 1.12rem;
}

.guide-card__body span {
  color: var(--kkfb-gold);
  font-weight: 800;
}

.section--split {
  display: grid;
  grid-template-columns: minmax(0, .86fr) minmax(340px, 1fr);
  align-items: start;
  gap: 1.5rem;
}

.section--surface {
  padding: 1.2rem;
  background: linear-gradient(135deg, rgba(11, 166, 107, .14), rgba(245, 185, 66, .08));
  border: 1px solid var(--kkfb-border);
  border-radius: 12px;
}

.home-article {
  border-top: 1px solid var(--kkfb-border);
  border-bottom: 1px solid var(--kkfb-border);
}

.home-article__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, .34fr);
  gap: 2rem;
  align-items: start;
}

.home-article__body {
  display: grid;
  gap: 1rem;
  max-width: 880px;
}

.home-article__body h2 {
  max-width: 820px;
}

.home-article__body h3 {
  margin-top: .65rem;
  color: var(--kkfb-text);
  font-size: 1.28rem;
}

.home-article__lead {
  color: #dbe8f7;
  font-size: 1.06rem;
}

.home-article__authority {
  display: grid;
  gap: .65rem;
  padding: 1rem;
  background: rgba(255, 255, 255, .045);
  border: 1px solid rgba(245, 185, 66, .22);
  border-radius: var(--kkfb-radius);
}

.home-article__authority strong {
  color: var(--kkfb-text);
  font-size: 1.05rem;
}

.home-article__authority span {
  color: var(--kkfb-gold);
  font-weight: 800;
}

.home-article__authority ul {
  display: grid;
  gap: .42rem;
  margin: 0;
  padding-left: 1.15rem;
  color: #dbe8f7;
}

.home-article__body a {
  color: var(--kkfb-gold);
  font-weight: 850;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.home-article__table-wrap {
  overflow-x: auto;
  border: 1px solid var(--kkfb-border);
  border-radius: var(--kkfb-radius);
}

.home-article__table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
  color: #dce8f7;
}

.home-article__table th,
.home-article__table td {
  padding: .8rem .9rem;
  border-bottom: 1px solid var(--kkfb-border);
  text-align: left;
  vertical-align: top;
}

.home-article__table th {
  color: var(--kkfb-text);
  background: rgba(255, 255, 255, .06);
  font-size: .92rem;
}

.home-article__table tr:last-child td {
  border-bottom: 0;
}

.home-article__aside {
  position: sticky;
  top: 96px;
  padding: 1rem;
  background: rgba(14, 27, 46, .76);
  border: 1px solid var(--kkfb-border);
  border-radius: var(--kkfb-radius);
}

.home-article__aside h3 {
  color: var(--kkfb-text);
  font-size: 1.16rem;
}

.home-article__signals {
  display: grid;
  gap: .45rem;
  margin-top: .8rem;
}

.home-article__signals span {
  padding: .55rem .65rem;
  color: #e8f2ff;
  background: rgba(255, 255, 255, .055);
  border: 1px solid var(--kkfb-border);
  border-radius: var(--kkfb-radius);
  font-size: .88rem;
  font-weight: 800;
}

.home-article__aside ul {
  display: grid;
  gap: .7rem;
  margin: .9rem 0 0;
  padding: 0;
  list-style: none;
}

.home-article__aside li {
  position: relative;
  padding-left: 1.25rem;
  color: #d8e5f4;
}

.home-article__aside li::before {
  content: "";
  position: absolute;
  top: .68rem;
  left: 0;
  width: 7px;
  height: 7px;
  background: var(--kkfb-gold);
  border-radius: 999px;
}

.score-panel {
  display: grid;
  gap: 1rem;
  padding: 1.1rem;
}

.score-row {
  display: grid;
  gap: .46rem;
}

.score-row__top {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: #dfeafa;
  font-weight: 800;
}

.score-row__top strong {
  color: var(--kkfb-gold);
}

.score-bar {
  height: 10px;
  overflow: hidden;
  background: rgba(255, 255, 255, .08);
  border-radius: 999px;
}

.score-bar span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--kkfb-green), var(--kkfb-gold));
  border-radius: inherit;
}

.checklist {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .75rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

.checklist li {
  position: relative;
  min-height: 54px;
  padding: .8rem .85rem .8rem 2.45rem;
  background: rgba(255, 255, 255, .06);
  border: 1px solid var(--kkfb-border);
  border-radius: var(--kkfb-radius);
  color: #dce8f8;
  font-weight: 700;
}

.checklist li::before {
  content: "";
  position: absolute;
  top: .98rem;
  left: .85rem;
  width: 18px;
  height: 18px;
  border: 2px solid var(--kkfb-green);
  border-radius: 50%;
  background: radial-gradient(circle, var(--kkfb-green) 38%, transparent 42%);
}

.feature-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, .78fr);
  align-items: center;
  gap: 1.3rem;
  padding: 1.2rem;
  background: linear-gradient(135deg, rgba(18, 36, 58, .92), rgba(14, 27, 46, .82));
  border: 1px solid var(--kkfb-border);
  border-radius: 12px;
}

.feature-card > div:first-child {
  display: grid;
  gap: 1rem;
}

.term-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.term-card,
.content-card {
  min-height: 188px;
  display: grid;
  align-content: start;
  gap: .65rem;
  padding: 1rem;
}

.term-card__icon {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--kkfb-gold), var(--kkfb-green));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #08111f;
  font-size: 1.05rem;
  font-weight: 900;
  line-height: 1;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .3), 0 10px 22px rgba(0, 0, 0, .2);
}

.popular-list {
  display: grid;
  gap: .75rem;
}

.popular-list a,
.related-card {
  display: grid;
  gap: .35rem;
  min-height: 88px;
  padding: 1rem;
  transition: transform .2s ease, border-color .2s ease;
}

.popular-list strong,
.related-card span {
  color: var(--kkfb-text);
  font-weight: 850;
}

.popular-list span,
.related-card small {
  color: var(--kkfb-muted);
}

.section--faq {
  padding-bottom: clamp(4rem, 7vw, 6rem);
}

.faq-list {
  display: grid;
  gap: .75rem;
}

.faq-item {
  overflow: hidden;
}

.faq-item summary {
  position: relative;
  padding: 1rem 3rem 1rem 1rem;
  color: var(--kkfb-text);
  font-weight: 850;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  position: absolute;
  top: .72rem;
  right: 1rem;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, .07);
  border-radius: 8px;
}

.faq-item[open] summary::after {
  content: "-";
}

.faq-item p {
  padding: 0 1rem 1rem;
}

.disclaimer-box {
  padding: 1rem;
  border-color: rgba(215, 38, 56, .34);
  background: linear-gradient(135deg, rgba(215, 38, 56, .12), rgba(245, 185, 66, .08));
}

.disclaimer-box strong {
  color: #fff;
}

.disclaimer-box p {
  margin-top: .35rem;
}

.page-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, .54fr);
  gap: 1.5rem;
  align-items: center;
  padding: clamp(2.5rem, 6vw, 5rem) 0 1.5rem;
}

.page-hero--center {
  grid-template-columns: 1fr;
  min-height: 62vh;
  align-items: center;
}

.page-hero__content p {
  max-width: 720px;
  font-size: 1.05rem;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  color: var(--kkfb-muted);
  font-size: .9rem;
}

.breadcrumb a {
  color: var(--kkfb-gold);
}

.breadcrumb span::before {
  content: "/";
  margin-right: .45rem;
  color: rgba(255, 255, 255, .34);
}

.page-content-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  padding-top: 1.5rem;
}

.content-card h2 {
  font-size: 1.35rem;
}

.wp-content-frame {
  padding: 1.2rem;
}

.wp-content-frame > * + * {
  margin-top: 1rem;
}

.kkfb-image-placeholder,
.kkfb-slot-img {
  width: 100%;
  min-height: 260px;
  object-fit: cover;
  border: 1px solid rgba(245, 185, 66, .28);
  border-radius: var(--kkfb-radius);
}

.kkfb-image-placeholder {
  display: grid;
  align-content: center;
  justify-items: center;
  gap: .55rem;
  padding: 1rem;
  text-align: center;
  background:
    linear-gradient(135deg, rgba(11, 166, 107, .16), rgba(245, 185, 66, .12)),
    repeating-linear-gradient(45deg, rgba(255, 255, 255, .04) 0 10px, transparent 10px 20px);
}

.kkfb-image-placeholder__label {
  max-width: 100%;
  overflow-wrap: anywhere;
  color: var(--kkfb-gold);
  font-size: .92rem;
  font-weight: 950;
  letter-spacing: 0;
}

.kkfb-image-placeholder__desc {
  max-width: 24rem;
  color: #d5e4f5;
  font-size: .86rem;
}

.site-footer {
  background: var(--kkfb-bg-deep);
  border-top: 1px solid var(--kkfb-border);
}

.site-footer__inner {
  width: min(var(--kkfb-max), calc(100% - 32px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, .7fr) minmax(260px, .72fr);
  gap: 2rem;
  padding: 2.5rem 0;
}

.site-footer__brand {
  display: grid;
  gap: 1rem;
  max-width: 720px;
}

.site-brand--footer .site-brand__text small {
  font-size: .85rem;
}

.footer-contact {
  display: grid;
  align-content: start;
  gap: .65rem;
  padding: 1rem;
  background: rgba(255, 255, 255, .035);
  border: 1px solid rgba(255, 255, 255, .09);
  border-radius: 10px;
}

.footer-contact h2 {
  font-size: 1rem;
}

.footer-contact ul {
  display: grid;
  gap: .4rem;
  padding: 0;
  margin: 0;
  list-style: none;
  color: var(--kkfb-muted);
  font-size: .92rem;
}

.footer-contact strong {
  color: var(--kkfb-text);
}

.footer-contact p {
  color: var(--kkfb-muted);
  font-size: .88rem;
}

.footer-nav,
.footer-nav__menu {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-content: start;
  gap: .3rem;
}

.site-footer__bottom {
  width: min(var(--kkfb-max), calc(100% - 32px));
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
  border-top: 1px solid var(--kkfb-border);
  color: var(--kkfb-muted);
  font-size: .9rem;
}

@media (max-width: 1040px) {
  .site-header__inner {
    grid-template-columns: auto auto 1fr;
  }

  .nav-toggle {
    display: block;
    justify-self: end;
    order: 3;
  }

  .primary-nav {
    position: absolute;
    top: 74px;
    left: 0;
    right: 0;
    display: none;
    width: min(var(--kkfb-max), calc(100% - 32px));
    margin: 0 auto;
    padding: .75rem;
    background: rgba(4, 9, 20, .97);
    border: 1px solid var(--kkfb-border);
    border-radius: 0 0 12px 12px;
    box-shadow: var(--kkfb-shadow);
  }

  .primary-nav.is-open,
  .primary-nav.is-open .primary-nav__menu {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .header-cta {
    justify-self: end;
  }

  .hero,
  .section--split,
  .home-article__grid,
  .feature-card,
  .page-hero,
  .site-footer__inner {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero__visual {
    max-width: 520px;
  }

  .term-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .home-article__aside {
    position: static;
  }
}

@media (max-width: 760px) {
  .site-header__inner {
    width: min(100% - 24px, var(--kkfb-max));
    grid-template-columns: 1fr auto;
    min-height: 68px;
  }

  .site-brand__mark {
    width: 38px;
    height: 38px;
  }

  .site-brand__logo {
    width: 22px;
    height: 22px;
  }

  .header-cta {
    display: none;
  }

  .primary-nav {
    top: 68px;
    width: calc(100% - 24px);
  }

  .hero,
  .page-hero,
  .section {
    width: min(100% - 24px, var(--kkfb-max));
  }

  .hero {
    padding-top: 2.4rem;
  }

  .hero__actions .button {
    width: 100%;
  }

  .phone-shell .kkfb-image-placeholder,
  .phone-shell .kkfb-slot-img {
    min-height: 360px;
  }

  .phone-shell__cards {
    position: static;
    margin-top: .75rem;
  }

  .guide-card-grid,
  .page-content-grid,
  .related-grid,
  .term-grid,
  .checklist {
    grid-template-columns: 1fr;
  }

  .guide-card {
    min-height: 280px;
  }

  .section--surface,
  .feature-card {
    padding: .9rem;
  }

  .site-footer__bottom {
    display: grid;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}