:root{
  --navy:#0b1430;
  --navy-2:#08102a;

  /* CTA button gradient (matches brand button) */
  --cta-start:#ff4d7a;
  --cta-end:#8a3a55;

  --cream:#fff7e0;
  --ink:#101828;
  --muted:#475467;

  /* Site background (dark reflective gradient blue) */
  --bg:#070b22;

  --card:#0f224b;
  --ring:rgba(255,77,122,.28);
  --shadow: 0 18px 45px rgba(0,0,0,.25);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif;
  color:#0b1220;
  background: var(--bg);
  line-height:1.55;
}

a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

.container{width:min(1120px, 92vw); margin:0 auto}
.section{padding: 72px 0; position:relative}
.section.alt{background: linear-gradient(180deg, rgba(255,247,224,.96), rgba(255,247,224,.90)); color: var(--ink)}
.section.light{background: #ffffff; color: var(--ink)}
.section.dark{
  background:
    radial-gradient(1100px 520px at 18% 0%, rgba(255,77,122,.18), transparent 58%),
    radial-gradient(900px 520px at 92% 10%, rgba(120,170,255,.16), transparent 60%),
    radial-gradient(1200px 600px at 50% 120%, rgba(10,120,255,.10), transparent 55%),
    linear-gradient(180deg, #070b22, #071236 55%, #06102b);
  color: #f7f9ff;
}
.section.dark .muted{color: rgba(247,249,255,.78)}
.section.dark .card{background: rgba(15,34,75,.9); border: 1px solid rgba(255,255,255,.08)}
.section.dark .pill{background: rgba(255,255,255,.10); color:#fff}

h1,h2,h3{line-height:1.1;margin:0 0 12px}
h1{font-size: clamp(34px, 4.2vw, 54px); letter-spacing:-.02em}
h2{font-size: clamp(26px, 3.1vw, 40px); letter-spacing:-.02em}
h3{font-size: 20px}

p{margin: 0 0 14px}
.small{font-size: 14px}
.muted{color: var(--muted)}
.center{text-align:center}
.spacer{height:18px}

.nav{
  position:sticky; top:0; z-index:50;
  background: rgba(9,16,42,.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.nav-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding: 14px 0;
}
.brand{
  display:flex; gap:10px; align-items:center;
  font-weight:800; letter-spacing:.2px;
  color:#fff;
}
.brand-badge{
  width:38px;height:38px;border-radius:12px;
  background: radial-gradient(circle at 30% 30%, var(--cta-start), var(--cta-end));
  display:grid;place-items:center;
  color:#fff;font-weight:900;
  box-shadow: 0 12px 30px rgba(0,0,0,.25);
}
.nav-links{display:flex;gap:14px;align-items:center}
.nav-links a{
  color: rgba(255,255,255,.82);
  font-weight:600;
  padding: 8px 10px;
  border-radius: 12px;
}
.nav-links a:hover{background: rgba(255,255,255,.08); color:#fff}

.btn{
  display:inline-flex; align-items:center; justify-content:center;
  gap:10px;
  font-weight:800;
  border-radius: 999px;
  padding: 14px 18px;
  border: 1px solid rgba(255,255,255,.10);
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
  cursor:pointer;
  user-select:none;
}
.btn.primary{
  background: linear-gradient(90deg, var(--cta-start), var(--cta-end));
  color:#ffffff;
  box-shadow: 0 16px 44px rgba(255,77,122,.22);
  border-color: rgba(255,255,255,.10);
}
.btn.primary:hover{
  transform: translateY(-1px);
  box-shadow: 0 20px 60px rgba(255,77,122,.26);
}
.btn.ghost{
  background: rgba(255,255,255,.08);
  color:#fff;
}
.btn.ghost:hover{transform: translateY(-1px); background: rgba(255,255,255,.12)}
.btn.block{width:100%}

.pill{
  display:inline-flex; gap:10px; align-items:center;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.12);
  color:#fff;
  font-weight:700;
  border: 1px solid rgba(255,255,255,.10);
}

.grid{display:grid; gap:22px}
.hero-grid{
  grid-template-columns: 1.05fr .95fr;
  align-items:start;
}
@media (max-width: 900px){
  .hero-grid{grid-template-columns: 1fr}
}

.card{
  background:#fff;
  border-radius: 18px;
  padding: 18px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(16,24,40,.08);
}
.card.soft{
  box-shadow:none;
  border-color: rgba(255,255,255,.10);
}
.card .checklist{margin-top:10px}
.checklist{display:grid; gap:10px; margin: 12px 0 0; padding:0; list-style:none}
.checklist li{
  display:flex; gap:10px; align-items:flex-start;
}
.check{
  width:22px;height:22px;border-radius: 7px;
  background: rgba(243,196,78,.18);
  border: 1px solid rgba(243,196,78,.45);
  display:grid; place-items:center;
  flex: 0 0 auto;
  margin-top: 1px;
}
.check svg{width:14px;height:14px; fill: var(--cta-start)}

.highlight{
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
  background: rgba(255, 215, 115, .92);
  padding: .10em .42em;
  border-radius: .55em;
  color:#0b1220;
  font-weight: 950;
  box-shadow: 0 0 0 1px rgba(255,215,115,.35) inset;
}

.split{
  display:grid; gap:20px;
  grid-template-columns: 1fr 1fr;
}
@media (max-width: 900px){.split{grid-template-columns:1fr}}

.embed{
  border-radius: 18px;
  overflow:hidden;
  border: 1px solid rgba(255,255,255,.10);
  box-shadow: 0 16px 55px rgba(0,0,0,.28);
  background: rgba(0,0,0,.2);
}
.embed.light{
  border-color: rgba(16,24,40,.10);
  box-shadow: 0 16px 45px rgba(0,0,0,.12);
  background:#fff;
}
.embed > .label{
  padding: 10px 12px;
  font-weight:800;
  display:flex; justify-content:space-between; gap:10px;
  background: rgba(255,255,255,.08);
  color:#fff;
}
.embed.light > .label{background:#0f172a; color:#fff}

.kpi{
  display:grid; gap:12px;
  grid-template-columns: repeat(4, 1fr);
}
@media (max-width: 900px){.kpi{grid-template-columns: repeat(2, 1fr)}}
.kpi .k{
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.10);
  border-radius: 16px;
  padding: 14px;
}
.k .n{font-size: 20px; font-weight:900}
.k .t{font-size: 13px; color: rgba(255,255,255,.78); font-weight:700}

.books{
  display:grid;
  grid-template-columns: repeat(5, 1fr);
  gap:16px;
}
@media (max-width: 1100px){.books{grid-template-columns: repeat(4, 1fr)}}
@media (max-width: 900px){.books{grid-template-columns: repeat(2, 1fr)}}
.book{
  border-radius: 16px;
  overflow:hidden;
  border: 1px solid rgba(16,24,40,.10);
  background:#fff;
  box-shadow: 0 14px 32px rgba(0,0,0,.10);
}
.book img{width:100%; aspect-ratio: 3/4; object-fit:cover}
.book .meta{padding: 10px 10px 12px}
.book .title{font-weight:900; font-size: 14px; margin-bottom:6px}
.book .lesson{font-size:12px; color:#475467}

.price-box{
  border-radius: 22px;
  padding: 18px;
  background:
    radial-gradient(600px 240px at 20% 0%, rgba(243,196,78,.30), transparent 60%),
    radial-gradient(600px 240px at 90% 20%, rgba(255,215,115,.22), transparent 60%),
    rgba(15,34,75,.92);
  border: 1px solid rgba(255,255,255,.10);
  box-shadow: 0 20px 65px rgba(0,0,0,.35);
}
.price{
  display:flex; align-items:baseline; gap:12px; flex-wrap:wrap;
  margin: 10px 0 12px;
}
.price .old{
  color: rgba(255,255,255,.75);
  text-decoration: line-through;
  font-weight:800;
  font-size: 18px;
}
.price .now{
  font-weight:1000;
  font-size: 40px;
  letter-spacing:-.02em;
  color: var(--gold-2);
}
.badge-save{
  display:inline-flex;
  background: rgba(255,255,255,.10);
  border: 1px solid rgba(255,255,255,.12);
  padding: 6px 10px;
  border-radius: 999px;
  font-weight:900;
  color:#fff;
  font-size: 12px;
}

.faq{
  display:grid; gap:10px;
}
details{
  background:#fff;
  border-radius: 16px;
  border: 1px solid rgba(16,24,40,.10);
  padding: 12px 14px;
}
details summary{
  cursor:pointer;
  font-weight:900;
}
details p{margin: 10px 0 0; color: #475467}


.countdown{
  margin-top: 10px;
  display:inline-flex;
  gap:10px;
  align-items:center;
  padding: 10px 12px;
  border-radius: 14px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.12);
  color: rgba(255,255,255,.92);
  font-weight: 900;
}
.section.light .countdown, .section.alt .countdown{
  background: rgba(11,20,48,.06);
  border-color: rgba(16,24,40,.10);
  color: #0b1220;
}
.countdown .label{
  font-size: 12px;
  opacity: .9;
  font-weight: 900;
}
.countdown .time{
  font-size: 13px;
  letter-spacing: .2px;
  padding: 6px 10px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--cta-start), var(--cta-end));
  color:#fff;
  border: 1px solid rgba(255,255,255,.14);
}


/* ===== Offer Countdown Widget (matches provided design) ===== */
.offer-countdown{
  border-radius: 22px;
  padding: 18px;
  border: 1px solid rgba(255,255,255,.10);
  background:
    radial-gradient(900px 460px at 15% 0%, rgba(255,77,122,.22), transparent 58%),
    radial-gradient(900px 460px at 92% 10%, rgba(120,170,255,.18), transparent 60%),
    linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.04));
  box-shadow: 0 22px 70px rgba(0,0,0,.35);
  overflow:hidden;
}
.offer-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
}
.offer-pill{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255,255,255,.10);
  border: 1px solid rgba(255,255,255,.12);
  color:#fff;
  font-weight: 950;
}
.offer-ends{
  color: rgba(255,255,255,.90);
  font-weight: 950;
}
.offer-grid{
  display:grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap:14px;
  margin-top: 16px;
}
.offer-box{
  border-radius: 18px;
  padding: 16px 12px;
  background: rgba(0,0,0,.14);
  border: 1px solid rgba(255,255,255,.10);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.06);
  text-align:center;
}
.offer-num{
  font-size: 52px;
  font-weight: 1000;
  letter-spacing: .5px;
  color:#fff;
  line-height: 1;
}
.offer-lab{
  margin-top: 10px;
  font-weight: 900;
  color: rgba(255,255,255,.82);
}
.offer-msg{
  margin-top: 16px;
  font-size: 18px;
  color: rgba(255,255,255,.88);
  font-weight: 800;
}
.offer-msg strong{color:#fff}
.offer-cta{
  margin-top: 18px;
}
.offer-cta .btn{padding: 16px 22px;}
/* Responsive */
@media (max-width: 820px){
  .offer-num{font-size: 46px;}
}
@media (max-width: 640px){
  .offer-grid{grid-template-columns: repeat(2, minmax(0, 1fr));}
  .offer-num{font-size: 44px;}
}
@media (max-width: 380px){
  .offer-grid{grid-template-columns: 1fr;}
}

.footer{
  padding: 34px 0;
  border-top: 1px solid rgba(255,255,255,.08);
  color: rgba(255,255,255,.80);
}
.footer a{color: rgba(255,215,115,.95); font-weight:800}


.whatsapp-fab{
  position: fixed;
  right: 16px;
  bottom: 90px;
  z-index: 70;
  display:flex;
  gap:10px;
  align-items:center;
  padding: 12px 14px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--cta-start), var(--cta-end));
  color:#fff;
  font-weight:900;
  border: 1px solid rgba(255,255,255,.12);
  box-shadow: 0 18px 55px rgba(0,0,0,.35);
  transition: transform .15s ease, box-shadow .15s ease;
}
.whatsapp-fab:hover{
  transform: translateY(-1px);
  box-shadow: 0 22px 65px rgba(0,0,0,.40);
}
.whatsapp-fab svg{width:18px;height:18px; fill:#fff}
@media (max-width: 900px){
  .whatsapp-fab{bottom: 128px;}
}

.sticky-cta{
  position: fixed;
  bottom: 14px;
  left: 0; right: 0;
  z-index: 60;
  display:none;
}
.sticky-cta .wrap{
  width:min(1120px, 92vw);
  margin: 0 auto;
  background: rgba(9,16,42,.92);
  border: 1px solid rgba(255,255,255,.10);
  border-radius: 18px;
  padding: 10px;
  display:flex; gap:10px; align-items:center; justify-content:space-between;
  backdrop-filter: blur(10px);
}
.sticky-cta .txt{color:#fff; font-weight:900}
.sticky-cta .sub{color: rgba(255,255,255,.72); font-size: 12px; font-weight:700}
@media (max-width: 900px){
  .sticky-cta{display:block}
  .sticky-cta .wrap{flex-direction: column; align-items:stretch}
}
.reveal{opacity:0; transform: translateY(10px); transition: opacity .5s ease, transform .5s ease}
.reveal.in{opacity:1; transform:none}

.embed iframe{display:block;}