:root{
  --ink: #0B2545;
  --paper: #FFFFFF;
  --surface: #F4F7FB;
  --accent: #2563EB;
  --accent-dark: #1D4ED8;
  --green: #16A34A;
  --muted: #5B6B85;
  --line: #E1E7F0;

  --ff-head: "Sora", sans-serif;
  --ff-body: "Inter", sans-serif;
}

*{ box-sizing: border-box; }
body{
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--ff-body);
}
h1,h2,h3{ font-family: var(--ff-head); margin: 0 0 12px; line-height: 1.15; }
p{ margin: 0; }
a{ text-decoration: none; color: inherit; }

/* Buttons */
.btn{
  display: inline-block;
  padding: 12px 22px;
  border-radius: 8px;
  font-weight: 700;
  font-size: .95rem;
  border: none;
  cursor: pointer;
}
.btn-lg{ padding: 15px 28px; font-size: 1rem; }
.btn-accent{ background: var(--accent); color: #fff; }
.btn-accent:hover{ background: var(--accent-dark); }
.btn-outline{ border: 2px solid var(--ink); color: var(--ink); background: transparent; }
.btn-outline:hover{ background: var(--ink); color: #fff; }

/* Nav */
.nav{
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 6%;
  border-bottom: 1px solid var(--line);
}
.logo{ font-family: var(--ff-head); font-weight: 800; font-size: 1.2rem; }

/* Hero */
.hero{
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 50px;
  align-items: center;
  padding: 80px 6%;
  background: var(--surface);
}
.eyebrow{
  font-size: .85rem; font-weight: 600; color: var(--accent-dark);
  text-transform: uppercase; letter-spacing: .04em; margin-bottom: 14px;
}
.hero h1{ font-size: clamp(2.1rem, 4.2vw, 3rem); font-weight: 800; }
.hero-sub{ margin-top: 18px; max-width: 480px; color: var(--muted); font-size: 1.05rem; line-height: 1.6; }
.hero-ctas{ margin-top: 30px; display: flex; gap: 14px; flex-wrap: wrap; }

.hero-panel{
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 26px;
  box-shadow: 0 20px 40px -24px rgba(15,23,42,.15);
}
.panel-row{ display: flex; gap: 14px; padding: 14px 0; }
.panel-row + .panel-row{ border-top: 1px solid var(--line); }
.panel-check{
  flex: none; width: 26px; height: 26px; border-radius: 50%;
  background: var(--green); color: #fff; font-size: .8rem;
  display: flex; align-items: center; justify-content: center;
}
.panel-row strong{ display: block; font-size: .95rem; margin-bottom: 4px; }
.panel-row p{ color: var(--muted); font-size: .85rem; line-height: 1.4; }

/* Trust bar */
.trust-bar{
  display: flex; justify-content: center; gap: 40px; flex-wrap: wrap;
  padding: 28px 6%; border-bottom: 1px solid var(--line);
}
.trust-item{
  display: flex; align-items: center; gap: 8px;
  font-weight: 600; font-size: .92rem; color: var(--ink);
}

/* Sections */
section{ padding: 80px 6%; }
section > h2{ text-align: center; font-size: 2rem; margin-bottom: 40px; }

/* How it works / tabs */
.how{ background: var(--paper); }
.tabs{ display: flex; justify-content: center; gap: 10px; margin-bottom: 40px; }
.tab-btn{
  padding: 10px 20px; border-radius: 999px; border: 1px solid var(--line);
  background: var(--paper); font-weight: 600; cursor: pointer; font-size: .92rem;
}
.tab-btn.active{ background: var(--ink); color: #fff; border-color: var(--ink); }
.tab-panel{ display: none; max-width: 760px; margin: 0 auto; }
.tab-panel.active{ display: block; }
.step{ display: flex; gap: 18px; padding: 18px 0; }
.step + .step{ border-top: 1px solid var(--line); }
.step-num{
  flex: none; width: 36px; height: 36px; border-radius: 50%;
  background: var(--accent); color: #fff; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.step h3{ font-size: 1.05rem; margin-bottom: 4px; }
.step p{ color: var(--muted); font-size: .92rem; }

/* Why */
.why{ background: var(--surface); }
.why-grid{
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
  max-width: 1080px; margin: 0 auto;
}
.why-card{
  background: var(--paper); border: 1px solid var(--line); border-radius: 12px; padding: 24px;
}
.why-card h3{ font-size: 1.02rem; }
.why-card p{ color: var(--muted); font-size: .88rem; line-height: 1.5; }

/* FAQ */
.faq{ max-width: 760px; margin: 0 auto; }
.faq details{
  border-bottom: 1px solid var(--line); padding: 18px 0;
}
.faq summary{
  cursor: pointer; font-weight: 600; font-size: 1rem; list-style: none;
}
.faq summary::-webkit-details-marker{ display: none; }
.faq summary::after{ content: "+"; float: right; color: var(--accent); font-weight: 700; }
.faq details[open] summary::after{ content: "−"; }
.faq p{ margin-top: 10px; color: var(--muted); font-size: .92rem; line-height: 1.55; }

/* Final CTA */
.cta{
  background: var(--ink); color: #fff; text-align: center;
}
.cta h2{ color: #fff; }
.cta p{ color: #C6CBD6; margin-bottom: 30px; }
.cta form{
  display: flex; gap: 10px; flex-wrap: wrap; justify-content: center;
  max-width: 560px; margin: 0 auto;
}
.cta input, .cta select{
  flex: 1 1 180px; padding: 13px 14px; border-radius: 8px; border: none;
  font-family: var(--ff-body); font-size: .95rem;
}
.cta button{ flex: 1 1 160px; }
#joinStatus{ margin-top: 16px; color: #6FE0A8; font-size: .9rem; }

/* Footer */
footer{
  display: flex; align-items: center; justify-content: space-between;
  padding: 30px 6%; border-top: 1px solid var(--line);
  flex-wrap: wrap; gap: 12px;
}
footer p{ color: var(--muted); font-size: .85rem; }

/* Responsive */
@media (max-width: 900px){
  .hero{ grid-template-columns: 1fr; }
  .why-grid{ grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px){
  .why-grid{ grid-template-columns: 1fr; }
  .cta form{ flex-direction: column; }
  .tabs{ flex-wrap: wrap; }
}