/* =====================================================
   BBO 3.0 - Round 2 registration
   ===================================================== */
:root{
  --primary:#0d6e3a; --primary-light:#1a9451; --primary-dark:#084d28;
  --navy:#0c1f4a; --navy-light:#162e68;
  --accent:#36d17e; --accent2:#4fc3f7;
  --white:#fff; --off-white:#f4f9f6; --light-gray:#e8f0ec;
  --text-dark:#111a14; --text-muted:#5a7066; --text-body:#2c3e35;
  --border:#c8ddd2; --shadow:rgba(13,110,58,.12); --shadow-lg:rgba(12,31,74,.22);
  --danger:#c62828; --danger-bg:#fdecea; --warn:#b26a00; --warn-bg:#fff5e5;
  --bkash:#e2136e;
  --font-display:'Playfair Display',Georgia,serif;
  --font-body:'DM Sans',system-ui,-apple-system,'Segoe UI',sans-serif;
  --radius:12px; --radius-lg:22px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;-webkit-text-size-adjust:100%}
body{font-family:var(--font-body);color:var(--text-body);background:var(--off-white);line-height:1.7;min-height:100vh}
img{max-width:100%;display:block}
ul,ol{list-style:none}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
.hidden{display:none !important}
.muted{color:var(--text-muted)}
.small{font-size:.85rem}
.center{text-align:center}

/* ---------- header ---------- */
.site-header{display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding:.7rem 1.5rem;background:var(--navy);color:#fff;box-shadow:0 4px 18px var(--shadow-lg)}
.brand{display:flex;align-items:center;gap:.75rem;min-width:0;color:#fff}
.brand:hover{text-decoration:none}
.brand-logo{width:38px;height:38px;object-fit:contain;flex-shrink:0}
.brand div{display:flex;flex-direction:column;line-height:1.25;min-width:0}
.brand strong{font-size:.95rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand span{font-size:.72rem;opacity:.7;letter-spacing:.08em;text-transform:uppercase}
.back-link{color:#fff;opacity:.8;font-size:.86rem;white-space:nowrap}

main{max-width:880px;margin:0 auto;padding:2.25rem 1.25rem 4rem}

/* ---------- shared ---------- */
.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:2rem;box-shadow:0 8px 30px var(--shadow);margin-bottom:1.25rem}
h1{font-family:var(--font-display);font-size:2.15rem;color:var(--navy);line-height:1.2;margin-bottom:.6rem}
h2{font-family:var(--font-display);font-size:1.45rem;color:var(--navy);margin-bottom:.65rem}
h3{font-size:1.15rem;color:var(--navy);margin-bottom:.4rem}
h4{font-size:.98rem;color:var(--navy);margin-bottom:.25rem}
.lead{color:var(--text-muted);max-width:640px;margin:0 auto 1.5rem}
.pill{display:inline-block;background:var(--light-gray);color:var(--primary);font-weight:700;
  font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;padding:.3rem 1rem;border-radius:50px;margin-bottom:1rem}
.sub{margin-bottom:.75rem}
.rule{border:none;border-top:1px solid var(--border);margin:1.75rem 0}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  padding:.9rem 1.9rem;border-radius:50px;font:inherit;font-size:.95rem;font-weight:700;
  cursor:pointer;border:2px solid transparent;transition:.2s;white-space:nowrap;text-align:center}
.btn-primary{background:var(--accent);color:var(--navy);border-color:var(--accent)}
.btn-primary:hover:not(:disabled){background:var(--primary);color:#fff;border-color:var(--primary);text-decoration:none}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--border)}
.btn-ghost:hover{border-color:var(--primary);text-decoration:none}
.btn-block{width:100%;margin-top:1rem}
.btn-lg{padding:1rem 2.2rem;font-size:1.03rem}
.btn:disabled{opacity:.55;cursor:not-allowed}

/* ---------- gate / loading ---------- */
.gate-icon{font-size:2.6rem;margin-bottom:.5rem}
/* the gate card closes the public info view, so give it a little more presence */
.gate-card{border-color:var(--accent);background:linear-gradient(135deg,#f4f9f6,#eefbf4)}
.gate-card h2{max-width:620px;margin-left:auto;margin-right:auto}
.gate-card p{max-width:560px;margin:0 auto 1.25rem}
.spinner{width:34px;height:34px;margin:0 auto 1rem;border:3px solid var(--light-gray);
  border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- hero ---------- */
.hero{text-align:center;margin-bottom:1.5rem}
.seat-meter{max-width:460px;margin:1.5rem auto 0}
.seat-bar{height:10px;background:var(--light-gray);border-radius:50px;overflow:hidden}
.seat-bar span{display:block;height:100%;width:0;border-radius:50px;
  background:linear-gradient(90deg,var(--primary),var(--accent));transition:width .9s ease}
.seat-meter p{margin-top:.5rem;font-size:.9rem}

/* ---------- benefits ---------- */
.benefit-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.1rem;margin-top:1.5rem}
.benefit{background:var(--off-white);border:1px solid var(--border);border-radius:var(--radius);padding:1.1rem 1.2rem}
.benefit .bi{font-size:1.5rem;display:block;margin-bottom:.35rem}
.benefit p{font-size:.87rem;color:var(--text-muted);line-height:1.6}

/* ---------- fees ---------- */
.fee-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.1rem;margin:1.5rem 0 1rem}
.fee-card{position:relative;display:block;background:#fff;border:2px solid var(--border);
  border-radius:var(--radius-lg);padding:1.5rem 1.4rem;cursor:pointer;transition:.2s}
.fee-card:hover{border-color:var(--primary-light)}
.fee-card input{position:absolute;opacity:0;width:0;height:0}
.fee-card.selected{border-color:var(--primary);box-shadow:0 6px 24px rgba(13,110,58,.16)}
.fee-card.featured{border-color:var(--accent)}
.fee-card.featured.selected{border-color:var(--primary)}
.ribbon{position:absolute;top:-11px;right:1.1rem;background:var(--accent);color:var(--navy);
  font-size:.68rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;padding:.22rem .8rem;border-radius:50px}
.fee-head{display:block;margin-bottom:.9rem}
.fee-head strong{display:block;font-size:2rem;color:var(--navy);line-height:1.1}
.fee-head em{font-style:normal;font-size:.85rem;color:var(--text-muted);font-weight:700}
.fee-card ul li{position:relative;padding-left:1.35rem;margin-bottom:.4rem;font-size:.88rem}
.fee-card ul li::before{content:"✓";position:absolute;left:0;color:var(--primary);font-weight:700}
.fee-pick{display:block;margin-top:1rem;text-align:center;font-weight:700;font-size:.85rem;
  color:var(--primary);border:2px solid var(--border);border-radius:50px;padding:.45rem}
.fee-card.selected .fee-pick{background:var(--primary);border-color:var(--primary);color:#fff}
.fee-card.selected .fee-pick::before{content:"✓ "}

/* ---------- facts ---------- */
.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1px;
  background:var(--border);border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;margin:1.25rem 0}
.facts>div{background:var(--off-white);padding:1rem;text-align:center}
.facts span{display:block;font-size:.7rem;text-transform:uppercase;letter-spacing:.07em;color:var(--text-muted)}
.facts strong{color:var(--navy);font-size:.98rem}
.warn-note{background:var(--warn-bg);border-left:4px solid #f0a500;border-radius:var(--radius);
  padding:1rem 1.2rem;font-size:.92rem;margin-bottom:.75rem}

/* ---------- form ---------- */
.verified{display:flex;align-items:center;gap:.85rem;background:#eefbf4;border:1px solid var(--accent);
  border-radius:var(--radius);padding:.9rem 1.1rem;margin:1.25rem 0 1.5rem}
.verified .tick{width:30px;height:30px;border-radius:50%;background:var(--primary);color:#fff;
  display:grid;place-items:center;font-weight:700;flex-shrink:0}
.verified div{display:flex;flex-direction:column;line-height:1.35;min-width:0}
.verified strong{color:var(--navy)}

.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.field{margin-bottom:1.1rem}
label{display:block;font-weight:700;font-size:.9rem;color:var(--navy);margin-bottom:.4rem}
label em{color:var(--danger);font-style:normal}
input[type=text],input[type=tel],input[type=email],select,input[type=file]{
  width:100%;padding:.8rem 1rem;font:inherit;font-size:1rem;color:var(--text-dark);
  border:2px solid var(--border);border-radius:var(--radius);background:#fff;transition:.2s}
input:focus,select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(13,110,58,.1)}
input.invalid,select.invalid{border-color:var(--danger);background:var(--danger-bg)}
input[readonly]{background:var(--off-white);color:var(--text-muted)}
input[type=file]{padding:.6rem;font-size:.88rem}
.hint{display:block;font-size:.78rem;color:var(--text-muted);margin-top:.3rem;font-weight:400}
.err{display:none;font-size:.8rem;color:var(--danger);margin-top:.3rem;font-weight:600}
.err.show{display:block}
.indent{margin-left:1.9rem;margin-top:.6rem}

.check{display:flex;gap:.7rem;align-items:flex-start;font-weight:400;font-size:.92rem;
  background:var(--off-white);padding:.8rem 1rem;border-radius:var(--radius);
  border:1px solid var(--border);margin-bottom:.6rem;cursor:pointer}
.check input{margin-top:.25rem;width:18px;height:18px;flex-shrink:0;accent-color:var(--primary)}
.check.confirm{margin:1.25rem 0 .5rem}
.seg-label{margin-bottom:.6rem}
.segments{background:#fff;border:2px dashed var(--accent);border-radius:var(--radius);padding:1.1rem;margin-bottom:1rem}

.notice{border-radius:var(--radius);padding:1rem 1.2rem;font-size:.9rem;margin-bottom:1rem}
.notice-warn{background:var(--warn-bg);border-left:4px solid #f0a500}

/* ---------- payment ---------- */
.pay-box{background:var(--off-white);border:1px solid var(--border);border-radius:var(--radius);
  padding:1.25rem;margin-bottom:1.25rem}
.pay-amount{font-size:1.05rem;margin-bottom:.4rem}
.pay-amount strong{color:var(--bkash);font-size:1.5rem}
.bkash-numbers{display:flex;gap:.7rem;flex-wrap:wrap;margin:.9rem 0}
.bkash-num{display:flex;align-items:center;gap:.6rem;background:#fff;border:2px solid var(--bkash);
  border-radius:50px;padding:.5rem 1rem;font-weight:700;color:var(--bkash);font-size:1rem}
.bkash-num button{background:var(--bkash);color:#fff;border:none;border-radius:50px;
  padding:.25rem .7rem;font:inherit;font-size:.72rem;font-weight:700;cursor:pointer}
.pay-steps{counter-reset:step;margin-top:.75rem}
.pay-steps li{counter-increment:step;position:relative;padding-left:2rem;margin-bottom:.45rem;font-size:.88rem}
.pay-steps li::before{content:counter(step);position:absolute;left:0;top:.1rem;width:1.35rem;height:1.35rem;
  background:var(--navy);color:#fff;border-radius:50%;display:grid;place-items:center;font-size:.72rem;font-weight:700}

.shot-preview{margin-bottom:1rem}
.shot-preview img{max-height:230px;width:auto;border-radius:var(--radius);border:1px solid var(--border)}
.form-note{margin-top:.9rem;font-size:.86rem;text-align:center;color:var(--text-muted)}
.form-note.error{color:var(--danger);font-weight:600}

/* ---------- done ---------- */
.verdict{text-align:center;border-radius:var(--radius-lg);padding:2.25rem 2rem;margin-bottom:1.25rem;
  color:#fff;box-shadow:0 10px 36px var(--shadow-lg)}
.verdict.pass{background:linear-gradient(135deg,var(--primary),var(--accent))}
.verdict-icon{font-size:2.8rem;line-height:1;margin-bottom:.5rem}
.verdict h2{color:#fff;font-size:1.8rem;margin-bottom:.5rem}
.verdict p{opacity:.93;max-width:560px;margin:0 auto}
.receipt{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:1px;background:var(--border);
  border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;margin-bottom:1rem;text-align:center}
.receipt>div{background:var(--off-white);padding:.9rem}
.receipt span{display:block;font-size:.7rem;text-transform:uppercase;letter-spacing:.07em;color:var(--text-muted)}
.receipt strong{color:var(--navy);font-size:1rem;word-break:break-word}

.whatsapp-card{text-align:center;border-color:#25d366;background:linear-gradient(135deg,#f4f9f6,#eefbf4)}
.wa-icon{font-size:2.4rem;margin-bottom:.4rem}
.whatsapp-card p{max-width:560px;margin:0 auto 1.1rem;color:var(--text-muted)}
.actions{display:flex;gap:.75rem;justify-content:center;flex-wrap:wrap}

/* ---------- certificate popup ---------- */
.cert-popup{
  position:fixed;top:.9rem;right:.9rem;z-index:200;width:min(340px,calc(100vw - 1.8rem));
  background:#fff;border:1px solid var(--border);border-left:5px solid var(--accent2);
  border-radius:14px;box-shadow:0 12px 40px rgba(12,31,74,.28);
  animation:certIn .35s cubic-bezier(.2,.9,.3,1)
}
@keyframes certIn{from{opacity:0;transform:translateY(-14px)}to{opacity:1;transform:none}}
.cert-popup.done{border-left-color:var(--primary)}
.cert-popup.error{border-left-color:var(--danger)}
.cert-popup-inner{display:flex;align-items:flex-start;gap:.75rem;padding:.9rem 1rem}
.cert-copy{display:flex;flex-direction:column;line-height:1.45;min-width:0;flex:1}
.cert-copy strong{font-size:.92rem;color:var(--navy)}
.cert-copy span{font-size:.82rem;color:var(--text-muted)}
.cert-spinner{
  width:22px;height:22px;flex-shrink:0;margin-top:.15rem;border-radius:50%;
  border:3px solid var(--light-gray);border-top-color:var(--accent2);animation:spin .8s linear infinite
}
.cert-tick{
  width:22px;height:22px;flex-shrink:0;margin-top:.15rem;border-radius:50%;
  background:var(--primary);color:#fff;display:grid;place-items:center;font-size:.8rem;font-weight:700
}
.cert-close{
  background:none;border:none;font-size:1.3rem;line-height:1;color:var(--text-muted);
  cursor:pointer;padding:0 .1rem;flex-shrink:0
}
.cert-close:hover{color:var(--navy)}
.cert-manual{display:block;padding:0 1rem .85rem;font-size:.8rem;font-weight:700}

@media (max-width:640px){
  .cert-popup{top:.6rem;right:.6rem;left:.6rem;width:auto}
}

/* ---------- toast ---------- */
.toast{position:fixed;bottom:1.5rem;left:50%;transform:translateX(-50%);z-index:120;
  background:var(--navy);color:#fff;padding:.8rem 1.5rem;border-radius:50px;font-size:.88rem;
  box-shadow:0 8px 30px rgba(0,0,0,.3);max-width:90vw;text-align:center}
.toast.err{background:var(--danger)}

/* ---------- responsive ---------- */
@media (max-width:700px){
  .grid-2{grid-template-columns:1fr;gap:0}
}
@media (max-width:640px){
  main{padding:1.6rem .9rem 3rem}
  h1{font-size:1.65rem}
  h2{font-size:1.25rem}
  .card{padding:1.4rem 1.1rem}
  .btn{width:100%}
  .actions .btn{width:100%}
  .fee-head strong{font-size:1.7rem}
  .brand span{display:none}
  .brand strong{font-size:.8rem;max-width:48vw}
  .indent{margin-left:.75rem}
}