/* ==========================================================================
   ABCL TECH — Course Kit · course home (landing) page
   Loaded after ../css/style.css and ./lesson.css (re-uses its tokens,
   buttons, FAQ accordion and panel styles). Frame = site header container.
   ========================================================================== */

.cx-page { background: #fff; }
.cx-page main { margin-bottom: 0; }
.cx-wrap { width: 100%; max-width: 1400px; margin: 0 auto; padding: 0 2rem; font-family: var(--lx-font); }

/* ---------- hero ---------- */
.cx-hero {
  background: linear-gradient(135deg, #020c1a 0%, #0d1f3c 50%, #0a2818 100%);
  color: #e2e8f0; position: relative; overflow: hidden; padding: 3rem 0 3.2rem;
}
.cx-hero::before { content: ''; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(ellipse 55% 60% at 30% 35%, rgba(57,181,73,.14) 0%, transparent 70%); }
.cx-hero .cx-wrap { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1fr) 380px; gap: 3rem; align-items: center; }
.cx-hero h1 { font-size: clamp(1.8rem, 1.2rem + 2.4vw, 2.9rem); line-height: 1.25; color: #f8fafc; margin: .2rem 0 .5rem; font-weight: 700; }
.cx-hero h1 .accent { color: #4ade80; }
.cx-hero-en { font-family: Roboto, sans-serif; color: #94a3b8; font-size: 1.02rem; margin: 0 0 1.1rem; }
.cx-lead { font-size: 1.08rem; line-height: 1.85; color: #cbd5e1; max-width: 46rem; margin: 0 0 1.3rem; }
.cx-lead strong { color: #fff; }
.cx-cta { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 1.6rem; }
.cx-btn {
  display: inline-flex; align-items: center; gap: .55rem; min-height: 48px; padding: .75rem 1.4rem; border-radius: 99px;
  font: 700 .98rem var(--lx-font); text-decoration: none; cursor: pointer; border: 2px solid transparent; transition: background .2s, color .2s, transform .15s;
}
.cx-btn:hover { transform: translateY(-1px); }
.cx-btn-primary { background: #39b549; color: #fff; box-shadow: 0 8px 22px rgba(57,181,73,.32); }
.cx-btn-primary:hover { background: #2d8c3a; color: #fff; }
.cx-btn-ghost { background: transparent; color: #e2e8f0; border-color: rgba(255,255,255,.28); }
.cx-btn-ghost:hover { border-color: #4ade80; color: #fff; }

/* hero card (progress / course at a glance) */
.cx-card { background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.13); border-radius: 16px; padding: 1.3rem 1.35rem; color: #cbd5e1; }
.cx-card-h { font-size: .74rem; font-weight: 700; letter-spacing: .4px; color: #86efac; margin: 0 0 .7rem; }
.cx-ring-row { display: flex; align-items: center; gap: 1rem; margin-bottom: 1rem; }
.cx-ring { width: 74px; height: 74px; flex: none; }
.cx-ring circle { fill: none; stroke-width: 8; }
.cx-ring .bg { stroke: rgba(255,255,255,.12); }
.cx-ring .fg { stroke: #4ade80; stroke-linecap: round; transform: rotate(-90deg); transform-origin: 50% 50%; transition: stroke-dashoffset .6s ease; }
.cx-ring text { fill: #fff; font: 700 15px var(--lx-font); text-anchor: middle; dominant-baseline: central; }
.cx-ring-txt b { display: block; color: #fff; font-size: 1.02rem; }
.cx-ring-txt span { font-size: .84rem; color: #94a3b8; }
.cx-mini { list-style: none; margin: 0 0 1rem; padding: 0; display: grid; gap: .2rem; }
.cx-mini a { display: flex; align-items: center; gap: .65rem; padding: .35rem .5rem; border-radius: 8px; color: #cbd5e1; text-decoration: none; font-size: .86rem; line-height: 1.35; }
.cx-mini a:hover { background: rgba(255,255,255,.06); color: #fff; }
.cx-mini i { width: 26px; height: 26px; flex: none; display: grid; place-items: center; border-radius: 7px; background: rgba(57,181,73,.16); color: #4ade80; font-size: .78rem; }
.cx-mini small { margin-left: auto; color: #94a3b8; font-size: .76rem; white-space: nowrap; }
.cx-card .cx-btn { width: 100%; justify-content: center; min-height: 44px; padding: .6rem 1rem; font-size: .9rem; }
.cx-card-next { font-size: .84rem; color: #94a3b8; margin: 0 0 .7rem; line-height: 1.55; }
.cx-mini + .cx-card-next { margin: .2rem 0 0; padding-top: .8rem; border-top: 1px solid rgba(255,255,255,.1); }
.cx-card-next b { color: #fff; }
.cx-card-link { color: #fff; font-weight: 700; text-decoration: none; border-bottom: 1px dashed rgba(74,222,128,.6); }
.cx-card-link:hover { color: #86efac; }

/* ---------- sections ---------- */
.cx-section { padding: 3.6rem 0; }
.cx-section.alt { background: var(--lx-bg-soft); border-top: 1px solid var(--lx-line); border-bottom: 1px solid var(--lx-line); }
.cx-head { text-align: center; max-width: 44rem; margin: 0 auto 2.2rem; }
.cx-head h2 { font-size: clamp(1.45rem, 1.15rem + 1.1vw, 2rem); line-height: 1.35; color: var(--lx-ink); margin: 0 0 .3rem; }
.cx-head .en { display: block; font: 500 .95rem Roboto, sans-serif; color: var(--lx-mute); margin-bottom: .6rem; }
.cx-head p { color: var(--lx-soft); font-size: 1rem; line-height: 1.8; margin: 0; }

/* why cards */
.cx-why { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; }
.cx-why-card { background: #fff; border: 1px solid var(--lx-line); border-radius: 14px; padding: 1.3rem 1.2rem; }
.cx-why-ic { width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; font-size: 1.15rem; margin-bottom: .85rem; }
.cx-why-card h3 { font-size: 1.05rem; line-height: 1.45; color: var(--lx-ink); margin: 0 0 .4rem; }
.cx-why-card p { font-size: .93rem; line-height: 1.75; color: var(--lx-soft); margin: 0; }
.c-green { background: var(--lx-accent-soft); color: var(--lx-accent-dark); }
.c-blue { background: #dbeafe; color: #1d4ed8; }
.c-amber { background: #fef3c7; color: #b45309; }
.c-violet { background: #ede9fe; color: #6d28d9; }

/* lesson anatomy (how every lesson is built) */
.cx-anatomy { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: .8rem; counter-reset: an; list-style: none; margin: 0; padding: 0; }
.cx-anatomy li { position: relative; background: #fff; border: 1px solid var(--lx-line); border-radius: 14px; padding: 1.1rem .95rem 1rem; counter-increment: an; }
.cx-anatomy li::before { content: counter(an, bengali); position: absolute; top: -.7rem; left: .9rem; width: 1.6rem; height: 1.6rem; border-radius: 50%;
  background: var(--lx-accent); color: #fff; font: 700 .8rem var(--lx-font); display: grid; place-items: center; }
.cx-anatomy b { display: block; font-size: .98rem; color: var(--lx-ink); margin: .35rem 0 .3rem; }
.cx-anatomy span { font-size: .86rem; line-height: 1.65; color: var(--lx-soft); }
.cx-anatomy .ic { font-size: 1.35rem; }
.cx-note { text-align: center; margin: 1.6rem auto 0; max-width: 44rem; font-size: .95rem; color: var(--lx-soft); line-height: 1.8; }
.cx-note a { color: var(--lx-accent-dark); font-weight: 700; }

/* roadmap */
.cx-road { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: .7rem; position: relative; }
.cx-road::before { content: ''; position: absolute; left: 4%; right: 4%; top: 31px; height: 3px; background: linear-gradient(90deg, var(--lx-accent-line), var(--lx-accent)); border-radius: 3px; }
.cx-road li { position: relative; text-align: center; }
.cx-road a { display: block; text-decoration: none; color: inherit; padding: 0 .2rem .4rem; border-radius: 12px; }
.cx-road a:hover .cx-road-dot { transform: scale(1.08); box-shadow: 0 0 0 6px var(--lx-accent-soft); }
.cx-road-dot { position: relative; z-index: 1; width: 64px; height: 64px; margin: 0 auto .8rem; border-radius: 50%; display: grid; place-items: center;
  background: #fff; border: 3px solid var(--lx-accent); color: var(--lx-accent-dark); font-size: 1.35rem; transition: transform .2s, box-shadow .2s; }
.cx-road .is-done .cx-road-dot { background: var(--lx-accent); color: #fff; }
.cx-road-n { font-size: .74rem; font-weight: 700; color: var(--lx-mute); }
.cx-road b { display: block; font-size: .92rem; line-height: 1.4; color: var(--lx-ink); margin: .15rem 0 .25rem; }
.cx-road small { font-size: .78rem; color: var(--lx-mute); }

/* syllabus */
.cx-tools { display: flex; flex-wrap: wrap; gap: .8rem; align-items: center; justify-content: space-between; margin: 0 0 1.4rem; }
.cx-search { position: relative; flex: 1 1 320px; max-width: 460px; }
.cx-search i { position: absolute; left: .95rem; top: 50%; transform: translateY(-50%); color: var(--lx-mute); }
.cx-search input { width: 100%; min-height: 46px; padding: .6rem 1rem .6rem 2.6rem; border: 1px solid var(--lx-line-2); border-radius: 12px; font: 1rem var(--lx-font); background: #fff; color: var(--lx-ink); }
.cx-search input:focus { outline: 3px solid rgba(57,181,73,.25); border-color: var(--lx-accent); }
.cx-count { font-size: .9rem; color: var(--lx-soft); }
.cx-mod { margin-bottom: 1.8rem; scroll-margin-top: calc(var(--lx-header) + 1rem); }
.cx-mod-h { display: flex; align-items: flex-start; gap: .85rem; padding-bottom: .8rem; margin-bottom: .7rem; border-bottom: 2px solid var(--lx-accent); }
.cx-mod-badge { flex: none; font: 700 .78rem var(--lx-mono); background: var(--lx-accent); color: #fff; padding: .25rem .55rem; border-radius: 6px; margin-top: .2rem; }
.cx-mod-h h3 { font-size: 1.18rem; line-height: 1.4; color: var(--lx-ink); margin: 0; }
.cx-mod-h p { margin: .15rem 0 0; font-size: .92rem; color: var(--lx-soft); line-height: 1.65; }
.cx-mod-meta { margin-left: auto; flex: none; font-size: .82rem; color: var(--lx-mute); white-space: nowrap; padding-top: .3rem; }
.cx-list { list-style: none; margin: 0; padding: 0; display: grid; gap: .5rem; }
@media (min-width: 1024px) { .cx-list { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .6rem .9rem; } }
.cx-row a { display: flex; align-items: center; gap: .9rem; padding: .8rem 1rem; background: #fff; border: 1px solid var(--lx-line); border-radius: 12px;
  text-decoration: none; color: var(--lx-ink); transition: border-color .15s, box-shadow .15s; }
.cx-row a:hover { border-color: var(--lx-accent); box-shadow: 0 4px 14px rgba(57,181,73,.1); }
.cx-row-n { flex: none; min-width: 2.6rem; text-align: center; font: 700 .8rem var(--lx-mono); background: var(--lx-accent-soft); color: var(--lx-accent-dark); padding: .3rem .4rem; border-radius: 6px; }
.cx-row-t { flex: 1; min-width: 0; font-size: 1rem; font-weight: 600; line-height: 1.5; }
.cx-row-go { flex: none; font-size: .84rem; font-weight: 700; color: #fff; background: var(--lx-accent); padding: .38rem .85rem; border-radius: 8px; }
.cx-row.is-done .cx-row-go { background: var(--lx-accent-soft); color: var(--lx-accent-dark); }
.cx-row.is-next a { border-color: var(--lx-accent); box-shadow: 0 0 0 3px rgba(57,181,73,.15); }
.cx-row.is-next .cx-row-t::after { content: 'পরের পর্ব'; margin-left: .6rem; font-size: .72rem; font-weight: 700; color: #b45309; background: #fef3c7; padding: .1rem .45rem; border-radius: 4px; vertical-align: middle; }
.cx-empty { text-align: center; padding: 2rem; color: var(--lx-mute); }

/* before / after */
.cx-two { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.2rem; }
.cx-box { border-radius: 14px; padding: 1.4rem 1.5rem; border: 1px solid var(--lx-line); background: #fff; }
.cx-box h3 { display: flex; gap: .55rem; align-items: center; font-size: 1.12rem; margin: 0 0 .8rem; color: var(--lx-ink); }
.cx-box ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .55rem; }
.cx-box li { position: relative; padding-left: 1.7rem; font-size: .97rem; line-height: 1.7; color: var(--lx-body); }
.cx-box li::before { position: absolute; left: 0; top: 0; font-weight: 700; }
.cx-box.need { border-left: 4px solid #2563eb; } .cx-box.need h3 i { color: #2563eb; } .cx-box.need li::before { content: '•'; color: #2563eb; font-size: 1.2rem; line-height: 1.4; }
.cx-box.gain { border-left: 4px solid var(--lx-accent); } .cx-box.gain h3 i { color: var(--lx-accent); } .cx-box.gain li::before { content: '✓'; color: var(--lx-accent); }

/* faq + final cta */
.cx-faq { max-width: 56rem; margin: 0 auto; }
.cx-final { text-align: center; padding: 3.4rem 0; background: linear-gradient(135deg, #020c1a 0%, #0d1f3c 60%, #0a2818 100%); color: #cbd5e1; }
.cx-final h2 { color: #fff; font-size: clamp(1.4rem, 1.1rem + 1vw, 1.9rem); margin: 0 0 .5rem; }
.cx-final p { margin: 0 auto 1.4rem; max-width: 40rem; line-height: 1.8; }
.cx-final .cx-cta { justify-content: center; }
.cx-page .ad-slot { max-width: 1400px; margin: 0 auto; padding: 1.5rem 2rem; }

/* ---------- responsive ---------- */
@media (max-width: 1200px) {
  .cx-why { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cx-anatomy { grid-template-columns: repeat(3, minmax(0, 1fr)); row-gap: 1.4rem; }
}
@media (max-width: 1023px) {
  .cx-hero .cx-wrap { grid-template-columns: minmax(0, 1fr); }
  .cx-road { grid-template-columns: minmax(0, 1fr); gap: .4rem; }
  .cx-road::before { left: 31px; right: auto; top: 10px; bottom: 10px; width: 3px; height: auto; background: linear-gradient(180deg, var(--lx-accent-line), var(--lx-accent)); }
  .cx-road a { display: grid; grid-template-columns: 64px minmax(0, 1fr); column-gap: 1rem; text-align: left; align-items: center; padding: .3rem 0; }
  .cx-road-dot { margin: 0; grid-row: span 3; }
  .cx-road b { margin: 0; }
}
@media (max-width: 760px) {
  .cx-two { grid-template-columns: minmax(0, 1fr); }
  .cx-anatomy { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .cx-wrap { padding: 0 16px; }
  .cx-hero { padding: 2.2rem 0 2.4rem; }
  .cx-section { padding: 2.6rem 0; }
  .cx-why { grid-template-columns: minmax(0, 1fr); }
  .cx-btn { width: 100%; justify-content: center; }
  .cx-mod-h { flex-wrap: wrap; }
  .cx-mod-meta { margin-left: 0; width: 100%; padding-top: 0; }
  .cx-row a { padding: .7rem .75rem; gap: .65rem; }
  .cx-row-go { padding: .32rem .6rem; }
}
@media (max-width: 420px) {
  .cx-anatomy { grid-template-columns: minmax(0, 1fr); }
}
@media (prefers-reduced-motion: reduce) {
  .cx-page *, .cx-page *::before { transition: none !important; }
}

/* login prompt in the hero card (progress is tracked only when signed in) */
.cx-card-login { display: flex; align-items: center; gap: .5rem; margin-top: .8rem; padding: .6rem .85rem; border-radius: 10px; border: 1px dashed rgba(74,222,128,.6); color: #bbf7d0; font-weight: 600; font-size: .88rem; text-decoration: none; }
.cx-card-login:hover { background: rgba(74,222,128,.12); color: #fff; }

/* enroll button sits inside the hero CTA row */
.cx-enroll { display: contents; }