:root{
  --green:#0aa34f;
  --green2:#0cc45f;
  --dark:#0b1b12;
  --muted:#6d7b73;
  --bg:#f4fff8;
  --card:#ffffff;
  --border:#d7f3e2;
  --shadow: 0 18px 45px rgba(10,163,79,.12);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:linear-gradient(180deg,#f7fffb, var(--bg));color:var(--dark)}
a{color:inherit}
.section{padding:22px 14px;max-width:980px;margin:0 auto}
.muted{color:var(--muted)}
h1,h2,h3{margin:0 0 10px 0;letter-spacing:-.02em}
p{margin:0}

/* Topbar */
.topbar{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.85);
  backdrop-filter: blur(10px);
  border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;
  padding:10px 14px;
}
.brand{display:flex;align-items:center;gap:10px}
.logo{
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(135deg,var(--green),var(--green2));
  display:grid;place-items:center;color:#fff;font-weight:900;
  box-shadow:0 10px 22px rgba(10,163,79,.2);
}
.brand-title{font-weight:800}
.brand-sub{font-size:12px;color:var(--muted)}

/* Buttons */
.ghost-btn{
  border:1px solid var(--border);
  background:#fff;
  padding:10px 12px;border-radius:14px;
  cursor:pointer;font-weight:700;
  transition:.2s transform, .2s box-shadow;
}
.ghost-btn:hover{transform:translateY(-1px);box-shadow:0 10px 22px rgba(0,0,0,.06)}
.ghost-btn.full{width:100%}

.cta{
  position:relative;
  border:none;cursor:pointer;
  padding:14px 16px;
  border-radius:18px;
  background:linear-gradient(135deg,var(--green),var(--green2));
  color:#fff;font-weight:900;
  letter-spacing:.02em;
  box-shadow: var(--shadow);
  overflow:hidden;
  transform: translateZ(0);
  animation: pulse 1.6s infinite;
}
.cta .cta-shine{
  position:absolute;inset:-40%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);
  transform:rotate(18deg) translateX(-60%);
  animation: shine 1.7s infinite;
}
@keyframes pulse{
  0%,100%{transform:scale(1)}
  50%{transform:scale(1.03)}
}
@keyframes shine{
  0%{transform:rotate(18deg) translateX(-70%)}
  100%{transform:rotate(18deg) translateX(70%)}
}

/* Hero */
.hero{padding-top:26px}
.hero-card{
  background: radial-gradient(900px 250px at 20% 0%, rgba(10,163,79,.18), transparent 55%),
              radial-gradient(700px 250px at 80% 0%, rgba(12,196,95,.15), transparent 55%),
              var(--card);
  border:1px solid var(--border);
  border-radius:26px;
  padding:20px;
  box-shadow: var(--shadow);
}
.lead{color:var(--muted);line-height:1.45;margin-bottom:14px}
.glow{
  display:inline-block;margin-left:6px;
  color:var(--green);
  text-shadow:0 0 18px rgba(10,163,79,.35);
}
.mpesa-pill{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid var(--border);
  background:#fff;
  padding:8px 10px;border-radius:999px;
  font-size:12px;font-weight:700;color:var(--muted);
  margin-bottom:14px;
}
.dot{width:10px;height:10px;border-radius:50%;background:var(--green);box-shadow:0 0 0 6px rgba(10,163,79,.12)}
.cta-row{display:flex;flex-direction:column;gap:12px}
.trust{display:flex;flex-wrap:wrap;gap:8px}
.trust-badge{
  border:1px solid var(--border);
  background:#fff;
  padding:8px 10px;border-radius:999px;
  font-size:12px;font-weight:700;
}
.hint{margin-top:14px;color:var(--muted);font-size:13px}

/* Section Head */
.section-head{margin-bottom:12px}

/* Grid */
.grid{
  display:grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap:10px;
}
@media (max-width: 780px){
  .grid{grid-template-columns: repeat(3, minmax(0,1fr));}
}
@media (max-width: 420px){
  .grid{grid-template-columns: repeat(3, minmax(0,1fr));} /* 3 per row on most phones */
}
.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:18px;
  padding:10px;
  box-shadow:0 10px 25px rgba(10,163,79,.07);
  display:flex;flex-direction:column;gap:8px;
}
.card-top{display:flex;align-items:center;justify-content:space-between;gap:8px}
.limit{
  font-weight:900;
  font-size:14px;
  color:var(--dark);
}
.badge{
  font-size:11px;font-weight:900;
  color:#0b5b2f;
  background:rgba(10,163,79,.10);
  border:1px solid rgba(10,163,79,.20);
  padding:4px 8px;border-radius:999px;
}
.fee{color:var(--muted);font-size:12px}
.buy{
  margin-top:auto;
  border:none;cursor:pointer;
  border-radius:14px;
  padding:10px 10px;
  font-weight:900;
  color:#fff;
  background:linear-gradient(135deg,var(--green),var(--green2));
  transition:.2s transform, .2s filter;
}
.buy:hover{transform:translateY(-1px);filter:brightness(1.02)}

/* Payment */
.pay-wrap{display:grid;grid-template-columns: 1.2fr .8fr;gap:12px}
@media (max-width: 860px){.pay-wrap{grid-template-columns:1fr}}
.pay-card,.side-card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:22px;
  padding:14px;
  box-shadow: var(--shadow);
}
.pay-top{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.pay-icon{
  width:46px;height:46px;border-radius:16px;
  background:linear-gradient(135deg,#0b8c43,#0ecf66);
  color:#fff;font-weight:1000;
  display:grid;place-items:center;
  box-shadow:0 10px 22px rgba(10,163,79,.22);
}
.pay-title{font-weight:900}
.pay-sub{font-size:12px;color:var(--muted)}
.summary{
  border:1px dashed rgba(10,163,79,.35);
  background:rgba(10,163,79,.06);
  border-radius:18px;
  padding:10px;margin:10px 0 12px 0;
}
.sum-row{display:flex;align-items:center;justify-content:space-between;padding:4px 0}
.form label{display:block;font-weight:800;font-size:13px;margin-bottom:10px}
.form input{
  width:100%;
  padding:12px 12px;
  border-radius:14px;
  border:1px solid var(--border);
  margin-top:8px;
  outline:none;
}
.form input:focus{border-color:rgba(10,163,79,.6);box-shadow:0 0 0 4px rgba(10,163,79,.12)}
.pay-btn{
  width:100%;
  margin-top:10px;
  border:none;cursor:pointer;
  border-radius:16px;
  padding:12px 12px;
  font-weight:1000;
  color:#fff;
  background:linear-gradient(135deg,var(--green),var(--green2));
}
.status{margin-top:10px;font-size:13px;color:var(--muted);min-height:18px}
.fineprint{margin-top:12px;font-size:12px;color:var(--muted)}
.side-card ol{margin:8px 0 0 18px;color:var(--muted)}
.side-note{
  margin-top:12px;
  padding:10px;border-radius:16px;
  border:1px solid var(--border);
  background:#fff;
  color:var(--muted);
  font-size:13px;
}

/* Toasts */
.toasts{
  position:fixed;right:12px;bottom:12px;z-index:60;
  display:flex;flex-direction:column;gap:8px;
  max-width: 300px;
}
.toast{
  background:#fff;
  border:1px solid var(--border);
  border-radius:16px;
  padding:10px 12px;
  box-shadow:0 18px 45px rgba(0,0,0,.10);
  display:flex;gap:10px;align-items:flex-start;
  animation: toastIn .35s ease-out;
}
@keyframes toastIn{
  from{transform:translateY(10px);opacity:0}
  to{transform:translateY(0);opacity:1}
}
.toast .ticon{
  width:34px;height:34px;border-radius:14px;
  background:rgba(10,163,79,.12);
  border:1px solid rgba(10,163,79,.18);
  display:grid;place-items:center;
  font-weight:1000;color:var(--green);
}
.toast .ttext{font-size:12px;color:var(--muted);line-height:1.25}
.toast strong{color:var(--dark)}

/* Footer */
.footer{
  padding:18px 14px;
  border-top:1px solid var(--border);
  display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;
  max-width:980px;margin:0 auto 12px auto;
}


/* =========================
   STK POPUP MODAL
   ========================= */
.hidden { display: none !important; }

.modal-overlay{
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
  z-index: 9999;
}

.modal-card{
  width: 100%;
  max-width: 420px;
  background: #fff;
  border-radius: 18px;
  padding: 18px 16px;
  box-shadow: 0 18px 50px rgba(0,0,0,.18);
  position: relative;
  animation: modalIn .18s ease-out;
}

@keyframes modalIn{
  from { transform: translateY(10px); opacity: .6; }
  to   { transform: translateY(0); opacity: 1; }
}

.modal-close{
  position: absolute;
  top: 10px;
  right: 12px;
  border: 0;
  background: #f3f4f6;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 16px;
  line-height: 34px;
}

.modal-title{
  margin: 6px 0 6px;
  font-size: 18px;
  font-weight: 800;
  color: #166534; /* deep green */
}

.modal-subtitle{
  margin: 0 0 14px;
  color: #334155;
  font-size: 13px;
}

.modal-form{
  display: grid;
  gap: 8px;
}

.modal-label{
  font-size: 12px;
  color: #334155;
  font-weight: 600;
  margin-top: 6px;
}

.modal-input{
  width: 100%;
  padding: 12px 12px;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  outline: none;
  font-size: 14px;
}

.modal-input:focus{
  border-color: #16a34a;
  box-shadow: 0 0 0 3px rgba(22,163,74,.12);
}

.modal-pay-btn{
  margin-top: 10px;
  padding: 12px 14px;
  border: 0;
  border-radius: 14px;
  background: #16a34a;
  color: #fff;
  font-weight: 800;
  cursor: pointer;
  transition: transform .08s ease;
}

.modal-pay-btn:active{
  transform: scale(0.99);
}

.modal-pay-btn:disabled{
  opacity: .7;
  cursor: not-allowed;
}

.modal-msg{
  margin: 10px 0 0;
  font-size: 13px;
  color: #0f172a;
}