/* ═══ CHECKOUT PAGE v3 ═══ */
:root{--cop:var(--theme-color,#6366f1);--cop-l:color-mix(in srgb,var(--cop) 12%,transparent);--cos:#10b981;--cod:#ef4444;--cow:#f59e0b;--cobg:#ffffff;--cob:#e8edf5;--cot:#0f172a;--com:#64748b);--cor:14px;--cosh:0 2px 12px rgba(0,0,0,.06)}
.co-page{max-width:620px;margin:0 auto;padding:12px 10px 80px;font-family:'Inter','Hind Siliguri',sans-serif;box-sizing:border-box;width:100%}
#coMain{opacity:0;transform:translateY(10px);transition:opacity .4s,transform .4s}
#coMain.loaded{opacity:1;transform:none}
.ske{border-radius:8px;background:linear-gradient(90deg,#f1f5f9 25%,#e2e8f0 50%,#f1f5f9 75%);background-size:200% 100%;animation:ske 1.4s infinite linear}
@keyframes ske{to{background-position:-200% 0}}
/* HERO */
.co-hero{position:relative;border-radius:14px;overflow:hidden;margin-bottom:14px;background:linear-gradient(135deg,#0f0c29,#302b63,#24243e);padding:20px 16px;display:flex;align-items:center;gap:16px;box-shadow:var(--cosh)}
.co-hero-img{width:72px;height:72px;border-radius:12px;object-fit:cover;border:2px solid rgba(255,255,255,.15);flex-shrink:0;box-shadow:0 8px 20px rgba(0,0,0,.3)}
.co-hero-title{font-size:1.15rem;font-weight:800;color:#fff;line-height:1.2}
.co-hero-sub{font-size:.75rem;color:rgba(255,255,255,.55);margin-top:4px;font-weight:500}
.co-hero-badge{position:absolute;top:12px;right:12px;background:rgba(255,255,255,.12);backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,.15);color:#fff;font-size:.65rem;font-weight:700;padding:3px 10px;border-radius:99px;text-transform:uppercase;letter-spacing:.05em}
/* CARD */
.co-card{background:#fff;border-radius:14px;border:1px solid #e8edf5;box-shadow:var(--cosh);margin-bottom:12px;overflow:hidden;width:100%;box-sizing:border-box}
.co-card-head{display:flex;align-items:center;justify-content:space-between;padding:14px 18px 12px;border-bottom:1px solid #f1f5f9}
.co-step{width:26px;height:26px;border-radius:50%;background:var(--cop);color:#fff;font-size:.75rem;font-weight:800;display:flex;align-items:center;justify-content:center;flex-shrink:0;box-shadow:0 3px 8px var(--cop-l)}
.co-card-title{font-size:.9rem;font-weight:700;color:#0f172a;margin-left:10px;flex:1}
.co-how{font-size:.75rem;font-weight:600;color:var(--cop);text-decoration:none;display:flex;align-items:center;gap:4px}
/* VARIATIONS */
.co-var-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;padding:12px 12px 14px}
.co-var-btn{position:relative;display:flex;align-items:center;padding:10px 10px;border-radius:10px;border:1.5px solid #e8edf5;background:#fafbff;cursor:pointer;width:100%;gap:8px;transition:border-color .15s,box-shadow .15s,transform .1s;min-width:0;box-sizing:border-box}
.co-var-btn:hover:not([disabled]){border-color:color-mix(in srgb,var(--cop) 40%,#e2e8f0);transform:translateY(-2px);box-shadow:0 6px 16px rgba(0,0,0,.06)}
.co-var-btn:active:not([disabled]){transform:scale(.97)}
.co-var-btn[disabled]{opacity:.55;cursor:not-allowed;filter:grayscale(40%)}
.co-var-dot{width:14px;height:14px;border-radius:50%;border:2px solid #cbd5e1;flex-shrink:0;position:relative;transition:border-color .12s,background .12s;min-width:14px}
.co-var-info{flex:1;min-width:0;text-align:left;overflow:hidden}
.co-var-name{font-size:.72rem;font-weight:700;color:#0f172a;line-height:1.2;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block;max-width:100%}
.co-var-stock{font-size:.6rem;font-weight:600;color:#10b981;margin-top:2px;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.co-var-stock.out{color:#ef4444}
.co-var-price{font-size:.75rem;font-weight:800;color:var(--cop);white-space:nowrap;flex-shrink:0;min-width:0}
.co-var-btn.sel{border-color:var(--cop)!important;background:var(--cop-l)!important;box-shadow:0 0 0 2px color-mix(in srgb,var(--cop) 20%,transparent)!important}
.co-var-btn.sel .co-var-dot{border-color:var(--cop);background:var(--cop)}
.co-var-btn.sel .co-var-dot::after{content:'';position:absolute;width:4px;height:4px;border-radius:50%;background:#fff;top:50%;left:50%;transform:translate(-50%,-50%)}
.co-hot{position:absolute;top:-1px;right:-1px;background:#f59e0b;color:#fff;font-size:.5rem;font-weight:800;padding:2px 6px;border-radius:0 10px 0 8px;text-transform:uppercase;white-space:nowrap}

/* Mobile responsive tweaks */
@media (max-width:400px){
    .co-var-grid{grid-template-columns:repeat(2,1fr);gap:6px;padding:10px 10px 12px}
    .co-var-btn{padding:9px 8px;gap:6px}
    .co-var-name{font-size:.68rem}
    .co-var-price{font-size:.7rem}
    .co-var-stock{font-size:.56rem}
    .co-var-dot{width:12px;height:12px;min-width:12px}
}

/* Very small screens — 1 column */
@media (max-width:320px){
    .co-var-grid{grid-template-columns:1fr}
}
/* INPUTS */
.co-field{margin-bottom:14px}
.co-label{display:block;font-size:.8rem;font-weight:700;color:#0f172a;margin-bottom:7px}
.co-input{width:100%;height:46px;border-radius:10px;border:1.5px solid #e8edf5;background:#fafbff;padding:0 14px;font-size:.9rem;font-weight:500;color:#0f172a;outline:none;transition:border-color .15s,box-shadow .15s;box-sizing:border-box}
.co-input:focus{border-color:var(--cop);box-shadow:0 0 0 3px var(--cop-l);background:#fff}
.co-irow{display:flex;gap:8px;align-items:stretch}
.co-irow .co-input{flex:1;margin-bottom:0}
.co-uid-result{display:none;margin-top:8px;padding:9px 13px;border-radius:8px;font-size:.78rem;font-weight:600;animation:fadeIn .25s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}
.co-uid-result.ok{background:#d1fae5;color:#065f46;border:1px solid #6ee7b7}
.co-uid-result.err{background:#fee2e2;color:#991b1b;border:1px solid #fca5a5}
.co-uid-btn{height:46px;padding:0 16px;background:var(--cop);color:#fff;border:none;border-radius:10px;font-size:.8rem;font-weight:700;white-space:nowrap;cursor:pointer;flex-shrink:0;display:flex;align-items:center;gap:6px;transition:filter .15s,transform .1s}
.co-uid-btn:hover{filter:brightness(110%)}
.co-uid-btn:disabled{opacity:.6;cursor:not-allowed}
.co-qty-row{display:flex;align-items:center;justify-content:space-between;margin-top:14px;padding-top:14px;border-top:1px solid #f1f5f9}
.co-qty-label{font-size:.85rem;font-weight:700;color:#0f172a}
.co-qty-wrap{display:flex;align-items:center;border:1.5px solid #e8edf5;border-radius:10px;overflow:hidden}
.co-qty-btn{width:36px;height:36px;background:var(--cop);color:#fff;border:none;font-size:1.1rem;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:filter .15s}
.co-qty-btn:hover{filter:brightness(110%)}
.co-qty-num{width:44px;text-align:center;border:none;font-size:.9rem;font-weight:700;color:#0f172a;outline:none;background:transparent}
/* PAYMENT */
.co-pm-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;padding:14px 14px 16px}
.co-pm-card{position:relative;border-radius:10px;border:1.5px solid #e8edf5;background:#fafbff;padding:12px;display:flex;align-items:center;gap:10px;cursor:pointer;transition:border-color .15s,box-shadow .15s,transform .1s;overflow:hidden}
.co-pm-card:hover:not(.co-pm-off){border-color:color-mix(in srgb,var(--cop) 40%,#e2e8f0);transform:translateY(-1.5px);box-shadow:0 5px 14px rgba(0,0,0,.05)}
.co-pm-card.co-pm-sel{border-color:var(--cop);background:var(--cop-l);box-shadow:0 0 0 2px color-mix(in srgb,var(--cop) 20%,transparent)}
.co-pm-card.co-pm-sel::before{content:'';position:absolute;top:0;left:0;border-style:solid;border-width:22px 22px 0 0;border-color:var(--cop) transparent transparent transparent}
.co-pm-card.co-pm-sel::after{content:'✓';position:absolute;top:1px;left:3px;color:#fff;font-size:10px;font-weight:900;line-height:1}
.co-pm-card.co-pm-off{opacity:.45;cursor:not-allowed;filter:grayscale(60%);pointer-events:none}
.co-pm-img{width:36px;height:36px;object-fit:contain;flex-shrink:0;border-radius:6px}
.co-pm-name{font-size:.82rem;font-weight:700;color:#0f172a;display:flex;align-items:center}
.co-pm-sub{font-size:.68rem;color:#64748b;font-weight:500;margin-top:2px}
.co-low{display:none;font-size:.6rem;font-weight:800;background:#ef4444;color:#fff;padding:1px 5px;border-radius:4px;margin-left:4px;text-transform:uppercase}
.co-cost{margin:0 14px 4px;padding:10px 14px;background:#f8faff;border-radius:10px;border:1px solid #e8edf5;display:flex;align-items:center;justify-content:space-between;font-size:.82rem}
.co-cost-lbl{color:#64748b;font-weight:600}
.co-cost-val{font-size:1.05rem;font-weight:800;color:var(--cop)}
.co-btn-wrap{padding:10px 14px 16px;display:flex;flex-direction:column;gap:9px}
.co-btn{width:100%;height:50px;border-radius:12px;font-size:.95rem;font-weight:800;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;letter-spacing:.02em;transition:filter .15s,transform .12s,box-shadow .15s;text-decoration:none!important}
.co-btn:active{transform:scale(.98)}
.co-btn-p{background:var(--cop);color:#fff;box-shadow:0 6px 18px var(--cop-l)}
.co-btn-p:hover:not(:disabled){filter:brightness(108%);box-shadow:0 10px 24px var(--cop-l)}
.co-btn-p:disabled{opacity:.5;cursor:not-allowed;filter:none;box-shadow:none}
.co-btn-g{background:#10b981;color:#fff;box-shadow:0 4px 14px rgba(16,185,129,.25)}
.co-btn-g:hover{filter:brightness(108%)}
/* DIALOG */
.co-overlay{position:fixed;inset:0;background:rgba(10,14,33,.55);backdrop-filter:blur(6px);z-index:99998;display:none;align-items:flex-end;justify-content:center}
.co-overlay.show{display:flex;animation:oIn .22s ease}
@keyframes oIn{from{opacity:0}to{opacity:1}}
.co-dialog{background:#fff;border-radius:24px 24px 0 0;width:100%;max-width:580px;padding:0 0 32px;animation:sUp .3s cubic-bezier(.16,1,.3,1);max-height:92vh;overflow-y:auto}
@keyframes sUp{from{transform:translateY(60px);opacity:0}to{transform:translateY(0);opacity:1}}
.co-dlg-handle{width:40px;height:4px;background:#e2e8f0;border-radius:99px;margin:12px auto 0}
.co-dlg-head{text-align:center;padding:18px 20px 12px;border-bottom:1px solid #f1f5f9}
.co-dlg-icon{width:56px;height:56px;border-radius:16px;background:var(--cop-l);display:flex;align-items:center;justify-content:center;margin:0 auto 12px;font-size:1.5rem}
.co-dlg-title{font-size:1.1rem;font-weight:800;color:#0f172a;margin-bottom:4px}
.co-dlg-sub{font-size:.8rem;color:#64748b;font-weight:500}
.co-sum-body{padding:16px 20px 0}
.co-sum-row{display:flex;align-items:center;justify-content:space-between;padding:10px 0;border-bottom:1px solid #f8fafc;font-size:.85rem}
.co-sum-row:last-child{border-bottom:none}
.co-sum-k{color:#64748b;font-weight:600;display:flex;align-items:center;gap:7px}
.co-sum-k i{color:var(--cop);width:16px;text-align:center}
.co-sum-v{font-weight:700;color:#0f172a;text-align:right;max-width:55%}
.co-sum-v.big{font-size:1.2rem;font-weight:800;color:var(--cop)}
.co-dlg-warn{margin:12px 20px 0;background:#fff7ed;border:1px solid #fed7aa;border-radius:10px;padding:10px 14px;font-size:.75rem;color:#92400e;font-weight:600;display:flex;align-items:flex-start;gap:8px;line-height:1.5}
.co-dlg-warn i{flex-shrink:0;margin-top:1px;color:#f59e0b}
.co-dlg-acts{padding:16px 20px 0;display:flex;flex-direction:column;gap:8px}
.co-btn-back{width:100%;height:46px;border-radius:12px;border:1.5px solid #e2e8f0;background:#fff;font-size:.9rem;font-weight:700;color:#64748b;cursor:pointer}
/* PROCESSING */
.co-proc{position:fixed;inset:0;background:rgba(10,14,33,.65);backdrop-filter:blur(10px);z-index:99999;display:none;align-items:center;justify-content:center}
.co-proc.show{display:flex}
.co-proc-card{background:#fff;border-radius:20px;padding:34px 28px;text-align:center;max-width:340px;width:90%;box-shadow:0 20px 60px rgba(0,0,0,.15)}
.co-spin{width:52px;height:52px;border:4px solid #f1f5f9;border-top-color:var(--cop);border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 18px}
@keyframes spin{to{transform:rotate(360deg)}}
.co-proc-title{font-size:1rem;font-weight:800;color:#0f172a}
.co-proc-sub{font-size:.8rem;color:#64748b;margin-top:6px}
/* TOAST */
.co-toast{position:fixed;bottom:90px;left:50%;transform:translateX(-50%);background:#1e293b;color:#fff;padding:10px 20px;border-radius:99px;font-size:.82rem;font-weight:700;z-index:999999;display:none;white-space:nowrap;box-shadow:0 8px 24px rgba(0,0,0,.2)}
.co-toast.err{background:#ef4444}
.co-toast.ok{background:#10b981}
/* RULES */
.co-rules{padding:4px 16px 16px;font-size:.8rem;color:#475569;line-height:1.7}
.co-rules ul{padding-left:18px}
/* RELATED */
.co-rel-ttl{text-align:center;font-size:.9rem;font-weight:800;color:#1e293b;margin:20px 0 12px;text-transform:uppercase;letter-spacing:.06em}
.co-rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.co-rel-card{background:radial-gradient(circle at top,#1e1b4b,#030712);border-radius:12px;padding:14px 8px;text-align:center;text-decoration:none!important;display:flex;flex-direction:column;align-items:center;transition:transform .15s}
.co-rel-card:hover{transform:translateY(-3px)}
.co-rel-img{width:50px;height:50px;border-radius:9px;object-fit:cover;margin-bottom:8px;box-shadow:0 4px 12px rgba(0,0,0,.3)}
.co-rel-name{font-size:.65rem;font-weight:600;color:#f8fafc;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}