/* reference stylesheet 1 */
:root {
  --bg: #06131d;
  --bg-deep: #030a10;
  --panel: rgba(11, 34, 48, .78);
  --panel-strong: #0b2230;
  --panel-soft: rgba(20, 55, 72, .52);
  --line: rgba(84, 226, 225, .24);
  --line-strong: rgba(84, 226, 225, .48);
  --text: #f5fbff;
  --muted: #8fb3bd;
  --cyan: #35f2e0;
  --lime: #b8ff3d;
  --amber: #ffb44d;
  --orange: #ff7e36;
  --shadow: 0 22px 70px rgba(0, 0, 0, .42);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--bg-deep);
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 78% 4%, rgba(53, 242, 224, .14), transparent 33rem),
    linear-gradient(180deg, #06131d 0%, #07131c 48%, #030a10 100%);
  color: var(--text);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

.container {
  width: min(1220px, calc(100% - 48px));
  margin: 0 auto;
}

.topbar {
  border-bottom: 1px solid rgba(84, 226, 225, .18);
  background: rgba(3, 10, 16, .88);
  backdrop-filter: blur(18px);
}

.header-main {
  min-height: 86px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 34px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  font-weight: 900;
  letter-spacing: 0;
}

.brand-signal {
  width: 34px;
  height: 35px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  align-items: end;
}

.brand-signal span {
  display: block;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--lime), var(--cyan));
}

.brand-signal span:nth-child(1) { height: 15px; }
.brand-signal span:nth-child(2) { height: 25px; }
.brand-signal span:nth-child(3) { height: 35px; }

.brand-word {
  color: #fff;
  font-size: clamp(2rem, 3vw, 3.15rem);
  line-height: 1;
  text-shadow: 0 0 24px rgba(53, 242, 224, .18);
}

.nav {
  display: flex;
  justify-content: center;
  gap: 30px;
  color: #d9eef2;
  font-size: 15px;
  font-weight: 700;
}

.nav a {
  position: relative;
  padding: 29px 0;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 18px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--lime));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .2s ease;
}

.nav a:hover::after,
.nav a.is-active::after {
  transform: scaleX(1);
}

.header-actions,
.hero-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 22px;
  border-radius: var(--radius);
  border: 1px solid var(--line-strong);
  color: var(--text);
  font-weight: 850;
  font-size: 14px;
  white-space: nowrap;
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}

.button:hover {
  transform: translateY(-2px);
  border-color: rgba(184, 255, 61, .75);
}

.button-primary {
  background: linear-gradient(135deg, var(--lime), var(--cyan));
  color: #031017;
  border-color: transparent;
  box-shadow: 0 12px 28px rgba(53, 242, 224, .22);
}

.button-secondary {
  background: rgba(8, 23, 34, .64);
}

.hero {
  position: relative;
  min-height: 680px;
  padding: 70px 0 44px;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(53, 242, 224, .045) 1px, transparent 1px),
    linear-gradient(180deg, rgba(53, 242, 224, .045) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: linear-gradient(180deg, #000 0, transparent 75%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(430px, 1fr);
  align-items: center;
  gap: 34px;
}

.hero-copy {
  position: relative;
  z-index: 2;
  min-width: 0;
}

.hero-kicker,
.section-kicker {
  color: var(--cyan);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 18px 0 22px;
  max-width: 560px;
  font-size: clamp(3rem, 3.65vw, 4.3rem);
  line-height: 1.06;
  letter-spacing: 0;
}

.hero p {
  max-width: 620px;
  margin: 0 0 32px;
  color: #b7ccd2;
  font-size: 18px;
}

.hero-visual {
  position: relative;
  min-height: 510px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.hero-visual::after {
  content: "";
  position: absolute;
  inset: 16% 4% 8% 10%;
  background: radial-gradient(circle, rgba(53, 242, 224, .28), transparent 58%);
  filter: blur(26px);
  z-index: 0;
}

.hero-visual img {
  position: relative;
  z-index: 1;
  width: min(146%, 980px);
  max-width: none;
  margin-left: auto;
  filter: drop-shadow(0 30px 55px rgba(0, 0, 0, .45));
  transform: translateX(96px);
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, transparent 12%, #000 24%, #000 94%, transparent 100%);
  mask-image: linear-gradient(90deg, transparent 0%, transparent 12%, #000 24%, #000 94%, transparent 100%);
}

.info-strip {
  margin-top: 34px;
}

.strip-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(15, 48, 65, .86), rgba(8, 22, 33, .72));
  box-shadow: var(--shadow);
  border-radius: var(--radius);
}

.strip-item {
  position: relative;
  display: grid;
  grid-template-columns: 46px 1fr;
  column-gap: 16px;
  padding: 24px 25px;
  border-right: 1px solid rgba(84, 226, 225, .17);
}

.strip-item::before {
  content: "";
  width: 42px;
  height: 42px;
  grid-row: 1 / span 2;
  border: 1px solid rgba(84, 226, 225, .55);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(53, 242, 224, .22), rgba(184, 255, 61, .08)),
    radial-gradient(circle at 70% 30%, rgba(53, 242, 224, .55), transparent 42%);
  box-shadow: inset 0 0 18px rgba(53, 242, 224, .16);
}

.strip-item:last-child {
  border-right: 0;
}

.strip-item strong {
  display: block;
  margin-bottom: 4px;
  color: #fff;
  font-size: 18px;
}

.strip-item span {
  color: var(--muted);
  font-size: 14px;
}

.section {
  padding: 58px 0;
}

.section h2 {
  margin: 8px 0 24px;
  font-size: clamp(2rem, 3.2vw, 3.25rem);
  line-height: 1.08;
  letter-spacing: 0;
}

.smart-layout {
  display: grid;
  grid-template-columns: 1.25fr .95fr;
  gap: 22px;
}

.feature-large,
.feature-stack > a,
.category-card,
.news-list,
.detail-card,
.side-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(12, 35, 49, .82), rgba(5, 17, 26, .78));
  box-shadow: 0 18px 50px rgba(0, 0, 0, .26);
}

.feature-large {
  min-height: 448px;
  padding: 36px;
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, .88fr) minmax(260px, 1fr);
  align-items: center;
  gap: 28px;
}

.feature-large::before {
  content: "";
  position: absolute;
  right: -16%;
  bottom: -22%;
  width: 72%;
  height: 72%;
  background: radial-gradient(circle, rgba(53, 242, 224, .18), transparent 64%);
  pointer-events: none;
}

.feature-copy {
  position: relative;
  z-index: 2;
}

.feature-token {
  width: 72px;
  height: 72px;
  display: grid;
  place-items: center;
  margin-bottom: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cyan), #0ca790);
  color: #031017;
  font-size: 28px;
  font-weight: 900;
}

.feature-mockup {
  position: relative;
  z-index: 2;
  min-height: 286px;
  padding: 22px;
  border: 1px solid rgba(84, 226, 225, .24);
  border-radius: 14px;
  background:
    linear-gradient(145deg, rgba(6, 23, 35, .96), rgba(13, 43, 58, .92)),
    radial-gradient(circle at 20% 20%, rgba(53, 242, 224, .2), transparent 38%);
  box-shadow: 0 26px 70px rgba(0, 0, 0, .34);
  transform: rotate(5deg);
}

.feature-mockup::before {
  content: "";
  position: absolute;
  inset: 14px;
  border-radius: 11px;
  border: 1px solid rgba(255, 255, 255, .06);
  pointer-events: none;
}

.mock-tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 18px;
  color: var(--muted);
  font-weight: 800;
  font-size: 13px;
}

.mock-tabs span:first-child {
  color: #fff;
}

.mock-card-row,
.mock-score {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  margin: 12px 0;
  padding: 15px;
  border: 1px solid rgba(84, 226, 225, .16);
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(224, 68, 50, .38), rgba(17, 44, 59, .88));
}

.mock-card-row.is-purple {
  background: linear-gradient(135deg, rgba(143, 94, 255, .34), rgba(17, 44, 59, .88));
}

.mock-card-row strong,
.mock-score strong {
  color: var(--lime);
  font-size: 22px;
}

.mock-score {
  background: linear-gradient(135deg, rgba(53, 242, 224, .16), rgba(4, 19, 30, .92));
}

.feature-large h3,
.feature-stack h3 {
  margin: 0 0 12px;
  font-size: 28px;
  line-height: 1.18;
}

.feature-large p,
.feature-stack p,
.category-card p,
.news-summary,
.footer p,
.detail-content {
  color: #b6cbd2;
}

.check-list {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  color: #d7f5f4;
}

.check-list li {
  margin: 12px 0;
}

.check-list li::before {
  content: "";
  width: 8px;
  height: 8px;
  display: inline-block;
  margin-right: 10px;
  border-radius: 50%;
  background: var(--lime);
}

.feature-stack {
  display: grid;
  gap: 18px;
}

.feature-stack > a {
  min-height: 136px;
  display: grid;
  grid-template-columns: 72px 1fr 18px;
  align-items: center;
  gap: 22px;
  padding: 24px;
}

.feature-stack .icon {
  width: 68px;
  height: 68px;
  border-radius: var(--radius);
  display: grid;
  place-items: center;
  font-weight: 900;
  color: #031017;
  background: linear-gradient(135deg, var(--amber), var(--cyan));
}

.feature-stack .arrow,
.news-arrow {
  color: var(--cyan);
  font-size: 28px;
}

.category-rail {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}

.category-card {
  position: relative;
  min-height: 172px;
  padding: 0;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  background: #07131d;
}

.category-card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(3, 10, 16, .05) 12%, rgba(3, 10, 16, .2) 48%, rgba(3, 10, 16, .88) 100%);
}

.category-card::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 4px;
  z-index: 2;
  background: var(--accent, var(--cyan));
}

.category-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .35s ease;
}

.category-card:hover img {
  transform: scale(1.06);
}

.category-card strong,
.category-card span,
.category-card em {
  position: relative;
  z-index: 3;
}

.category-card span {
  width: 100%;
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 20px 18px 16px;
}

.category-card strong {
  color: #fff;
  font-size: 18px;
}

.category-card em {
  font-style: normal;
  color: #fff;
  font-size: 20px;
}

.news-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 24px;
  margin-bottom: 26px;
}

.view-all {
  min-height: 42px;
  padding: 0 18px;
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  color: var(--cyan);
  font-weight: 800;
}

.news-list {
  overflow: hidden;
}

.news-row {
  display: grid;
  grid-template-columns: 160px 112px 1fr 24px;
  gap: 20px;
  align-items: center;
  padding: 16px 18px;
  border-bottom: 1px solid rgba(84, 226, 225, .13);
}

.news-row:last-child {
  border-bottom: 0;
}

.row-thumb {
  width: 160px;
  height: 78px;
  border-radius: 8px;
  overflow: hidden;
  background: #071824;
  border: 1px solid rgba(84, 226, 225, .18);
}

.row-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-date,
.news-tag {
  color: var(--muted);
  font-size: 13px;
  font-weight: 750;
}

.news-tag {
  display: inline-flex;
  width: fit-content;
  padding: 4px 9px;
  margin-bottom: 7px;
  border-radius: 999px;
  color: #031017;
  background: linear-gradient(135deg, var(--lime), var(--cyan));
}

.news-title {
  margin: 0 0 4px;
  color: #fff;
  font-size: 20px;
  line-height: 1.25;
}

.news-summary {
  margin: 0;
  font-size: 14px;
}

.pagination {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.pagination a,
.pagination span,
.pagination li {
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  justify-content: center;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--muted);
}

.footer {
  border-top: 1px solid rgba(84, 226, 225, .18);
  background: #030a10;
  padding: 60px 0 22px;
}

.footer-main {
  display: grid;
  grid-template-columns: 1.3fr repeat(3, .8fr);
  gap: 44px;
}

.footer h3 {
  margin: 0 0 16px;
  color: var(--cyan);
  font-size: 15px;
  text-transform: uppercase;
}

.footer a {
  display: block;
  margin: 8px 0;
  color: #b6cbd2;
}

.footer-bottom {
  margin-top: 36px;
  padding-top: 20px;
  border-top: 1px solid rgba(84, 226, 225, .13);
  color: var(--muted);
  font-size: 13px;
}

.article-hero {
  padding: 74px 0;
  background:
    radial-gradient(circle at 76% 22%, rgba(53, 242, 224, .16), transparent 28rem),
    linear-gradient(135deg, rgba(14, 43, 59, .92), rgba(3, 10, 16, .95));
  border-bottom: 1px solid rgba(84, 226, 225, .18);
}

.article-hero h1 {
  max-width: 980px;
  margin: 0 0 16px;
  font-size: clamp(2.3rem, 4vw, 4.4rem);
  line-height: 1.06;
}

.article-hero p {
  max-width: 780px;
  color: #b6cbd2;
  font-size: 18px;
}

.detail {
  padding: 58px 0;
}

.detail-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 24px;
}

.detail-card,
.side-card {
  padding: 30px;
}

.detail-card h1 {
  margin: 0 0 14px;
  font-size: clamp(2rem, 3.2vw, 3.4rem);
  line-height: 1.12;
}

.detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
  color: var(--muted);
  font-size: 14px;
}

.detail-content {
  font-size: 17px;
}

.detail-content h2,
.detail-content h3 {
  color: #fff;
  line-height: 1.18;
}

.detail-content a {
  color: var(--cyan);
}

.detail-content img {
  height: auto;
  border-radius: var(--radius);
  margin: 20px 0;
}

.page-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 26px;
}

.page-nav > div,
.side-card a {
  border: 1px solid rgba(84, 226, 225, .18);
  border-radius: var(--radius);
  padding: 14px;
  background: rgba(255, 255, 255, .035);
}

.side-card h3 {
  margin-top: 0;
  color: #fff;
}

.side-card a {
  display: block;
  margin: 10px 0;
  color: #d9eef2;
}

.side-note {
  display: block;
  margin-top: 18px;
  color: var(--lime);
  font-weight: 800;
}

@media (max-width: 980px) {
  .header-main {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 18px 0;
  }

  .nav {
    justify-content: flex-start;
    gap: 18px;
    overflow-x: auto;
    padding-bottom: 8px;
  }

  .nav a {
    padding: 6px 0 12px;
  }

  .hero-grid,
  .smart-layout,
  .detail-layout,
  .footer-main {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 48px;
  }

  .hero-visual {
    min-height: auto;
  }

  .hero-visual img {
    width: 100%;
    max-width: 100%;
    transform: none;
  }

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

  .category-rail {
    grid-template-columns: repeat(2, 1fr);
  }

  .feature-large {
    grid-template-columns: 1fr;
  }

  .feature-mockup {
    transform: none;
  }

  .news-row {
    grid-template-columns: 128px 1fr 20px;
  }

  .news-date {
    display: none;
  }

  .row-thumb {
    width: 128px;
    height: 74px;
  }
}

@media (max-width: 620px) {
  .container {
    width: min(100% - 28px, 1220px);
  }

  .brand-word {
    font-size: 2.25rem;
  }

  .header-actions,
  .hero-actions {
    width: 100%;
  }

  .button {
    flex: 1 1 auto;
    padding: 0 14px;
  }

  .hero h1 {
    font-size: 3rem;
  }

  .hero p {
    font-size: 16px;
  }

  .strip-grid,
  .category-rail {
    grid-template-columns: 1fr;
  }

  .strip-item {
    border-right: 0;
    border-bottom: 1px solid rgba(84, 226, 225, .17);
  }

  .strip-item:last-child {
    border-bottom: 0;
  }

  .feature-large,
  .detail-card,
  .side-card {
    padding: 22px;
  }

  .feature-stack > a {
    grid-template-columns: 56px 1fr;
  }

  .feature-stack .arrow {
    display: none;
  }

  .news-head {
    display: block;
  }

  .view-all {
    margin-top: 12px;
  }

  .news-row {
    grid-template-columns: 96px 1fr;
    gap: 14px;
    padding: 16px;
  }

  .row-thumb {
    width: 96px;
    height: 64px;
  }

  .news-date,
  .news-arrow {
    display: none;
  }

  .news-title {
    font-size: 17px;
  }

  .page-nav {
    grid-template-columns: 1fr;
  }
}


/* Target Bengali content and Dede integration */
:root{--clone-dark:#0b2230;--clone-bg2:#ffb44d;--clone-accent:#35f2e0;--clone-gold:#b8ff3d;--clone-blue:#35f2e0;}
body.true-reference-clone{font-family:Arial,"Kohinoor Bangla","Noto Sans Bengali",sans-serif;letter-spacing:0;}
body.true-reference-clone img[src*="tk11-logo"]{height:auto;object-fit:contain;}
body.true-reference-clone img[src*="tk11-hero"]{height:auto;object-fit:contain;}
.dede-update-zone,.article-detail-zone{padding:34px 0;}
.clone-update-inner,.clone-article-inner{width:min(1180px,calc(100% - 32px));margin:0 auto;}
.clone-update-head{text-align:center;margin-bottom:20px;}
.clone-update-head h2{margin:0;font-size:clamp(26px,3vw,38px);font-weight:900;line-height:1.2;}
.clone-update-head p{max-width:760px;margin:10px auto 0;color:#667085;}
.clone-update-list{display:grid;gap:16px;}
.clone-update-card{display:grid;grid-template-columns:170px minmax(0,1fr);gap:18px;padding:16px;border:1px solid rgba(20,25,40,.12);border-radius:10px;background:#fff;box-shadow:0 14px 34px rgba(20,25,40,.08);}
.clone-update-thumb{min-height:120px;border-radius:8px;background:linear-gradient(135deg,var(--clone-dark),var(--clone-accent));color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:900;text-decoration:none;}
.clone-update-tag{display:inline-flex;margin-bottom:6px;padding:4px 10px;border-radius:999px;background:rgba(0,0,0,.06);color:var(--clone-accent);font-weight:900;font-size:12px;}
.clone-update-body h3{margin:0;font-size:22px;line-height:1.32;}
.clone-update-body p{margin:8px 0;color:#5f6675;}
.clone-update-meta{display:flex;flex-wrap:wrap;gap:12px;color:#8a91a1;font-size:13px;}
.clone-readmore{display:inline-flex;margin-top:10px;color:var(--clone-accent);font-weight:900;text-decoration:none;}
.clone-pagination{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:22px 0 0;}
.clone-pagination li{list-style:none;}
.clone-pagination a,.clone-pagination span{display:inline-flex;min-width:38px;min-height:36px;align-items:center;justify-content:center;border:1px solid rgba(20,25,40,.14);border-radius:8px;padding:0 12px;background:#fff;color:#1c2433;text-decoration:none;font-weight:800;}
.clone-article-inner{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:22px;align-items:start;}
.clone-article,.clone-article-side{background:#fff;border:1px solid rgba(20,25,40,.12);border-radius:10px;box-shadow:0 14px 34px rgba(20,25,40,.08);padding:24px;}
.clone-crumb{color:#778094;font-size:14px;margin-bottom:12px;}
.clone-article h1{margin:0;font-size:clamp(30px,3vw,46px);line-height:1.2;}
.clone-article-meta{display:flex;gap:12px;flex-wrap:wrap;margin:12px 0 18px;color:#7d8494;font-size:14px;}
.clone-article-summary{padding:14px 16px;border-left:4px solid var(--clone-accent);background:rgba(0,0,0,.04);margin-bottom:20px;color:#505a6c;}
.clone-article-body{font-size:17px;line-height:1.9;color:#252b38;}
.clone-prenext{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:20px;}
.clone-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}
.clone-actions a,.clone-article-side a{display:inline-flex;margin:6px 6px 0 0;padding:9px 12px;border-radius:8px;background:var(--clone-accent);color:#fff;text-decoration:none;font-weight:800;}
@media(max-width:780px){.clone-update-card,.clone-article-inner,.clone-prenext{grid-template-columns:1fr;}}