/* Shared styling for the 4-step checkout: Cart → AU Info → Payment → Confirm */
:root{
  --co-ink:#1e2c38;--co-ink-light:#5a6672;--co-line:#dfe4ea;--co-soft:#f5f7fa;
  --co-white:#fff;--co-sky:#1B4FD8;--co-gold:#F0A500;--co-mint:#0a8f5f;
}
.co-body{background:var(--co-soft);color:var(--co-ink)}

/* PROGRESS */
.co-progress{background:#fff;border-bottom:1px solid var(--co-line);padding:18px 16px}
.co-progress-inner{max-width:860px;margin:0 auto;display:flex;align-items:center}
.co-step{display:flex;align-items:center;gap:8px;justify-content:center;flex:1;text-decoration:none}
.co-step-num{width:30px;height:30px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;background:#e6eaef;color:#77828d;flex-shrink:0}
.co-step.done .co-step-num{background:var(--co-mint);color:#fff}
.co-step.active .co-step-num{background:var(--co-sky);color:#fff}
.co-step-label{font-size:13px;font-weight:700;color:#77828d}
.co-step.done .co-step-label,.co-step.active .co-step-label{color:var(--co-ink)}
.co-line{flex:.5;height:2px;background:#e6eaef;margin:0 -6px}
.co-line.done{background:var(--co-mint)}

/* LAYOUT */
.co-wrap{max-width:1040px;margin:0 auto;padding:32px 16px 72px;display:grid;grid-template-columns:1fr 340px;gap:24px;align-items:start}
.co-aside{position:sticky;top:88px}
.co-card{background:#fff;border:1px solid var(--co-line);border-radius:16px;padding:26px;margin-bottom:18px;color:var(--co-ink)}
.co-card h2,.co-card h3{color:var(--co-ink)}
.co-title{font-size:19px;font-weight:800;margin-bottom:6px;display:flex;align-items:center;gap:10px}
.co-title .ico{width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;background:#eef3ff;font-size:18px}
.co-sub{font-size:13.5px;color:var(--co-ink-light);margin-bottom:18px}

/* CART ITEMS */
.co-item{display:flex;gap:14px;padding:14px;border:1px solid var(--co-line);border-radius:12px;margin-bottom:12px;align-items:flex-start;background:#fff}
.co-item-ico{width:42px;height:42px;border-radius:10px;background:#eef3ff;display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}
.co-item-info{flex:1;min-width:0}
.co-item-title{font-weight:700;font-size:15px;margin-bottom:4px;color:var(--co-ink)}
.co-item-meta{font-size:12.5px;color:var(--co-ink-light);display:flex;gap:14px;flex-wrap:wrap}
.co-item-meta strong{color:var(--co-ink)}
.co-item-right{display:flex;flex-direction:column;align-items:flex-end;gap:8px}
.co-price{font-weight:800;font-size:18px;color:var(--co-sky)}
.co-stepper{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--co-line);border-radius:9px;padding:4px 8px;background:#fff}
.co-stepper button{width:26px;height:26px;border-radius:6px;border:1px solid var(--co-line);background:var(--co-soft);color:var(--co-ink);font-size:16px;font-weight:700;cursor:pointer;line-height:1}
.co-stepper span{font-size:12.5px;font-weight:600;color:var(--co-ink);white-space:nowrap}
.co-remove{background:none;border:none;color:#98a2ad;font-size:12.5px;cursor:pointer}
.co-remove:hover{color:#c23b3b}

/* FORMS */
.co-au{border:1px solid var(--co-line);border-radius:14px;padding:20px;margin-bottom:16px;background:#fff}
.co-au-head{display:flex;align-items:center;gap:10px;font-weight:700;margin-bottom:4px;color:var(--co-ink)}
.co-au-head .co-au-price{margin-left:auto;color:var(--co-sky);font-weight:800}
.co-note{font-size:12.5px;color:var(--co-ink-light);margin-bottom:16px}
.co-row{display:grid;gap:14px;margin-bottom:14px}
.co-row-2{grid-template-columns:1fr 1fr}
.co-row-3{grid-template-columns:1fr 1fr 1fr}
.co-field label{display:block;font-size:12.5px;font-weight:700;color:var(--co-ink);margin-bottom:6px}
.co-field input,.co-field select{width:100%;padding:11px 13px;border:1.5px solid var(--co-line);border-radius:9px;font-size:14px;background:#fff;color:var(--co-ink);font-family:inherit}
.co-field input:focus,.co-field select:focus{outline:none;border-color:var(--co-sky)}
.co-field input::placeholder{color:#9aa4ae}

/* BUTTONS */
.co-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--co-sky);color:#fff;border:none;border-radius:10px;padding:14px 26px;font-size:15px;font-weight:700;cursor:pointer;font-family:inherit;text-decoration:none}
.co-btn:hover{background:#1642B8}
.co-btn[disabled]{opacity:.6;cursor:not-allowed}
.co-btn-block{width:100%}
.co-btn-ghost{background:#fff;color:var(--co-ink);border:1.5px solid var(--co-line)}
.co-btn-ghost:hover{background:var(--co-soft);color:var(--co-ink)}
.co-actions{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-top:22px;padding-top:18px;border-top:1px solid var(--co-line);flex-wrap:wrap}

/* PAYMENT */
.co-pay-tabs{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:22px}
.co-pay-tab{border:2px solid var(--co-line);border-radius:12px;padding:14px;cursor:pointer;background:#fff}
.co-pay-tab.active{border-color:var(--co-sky);background:#eef3ff}
.co-pay-name{display:block;font-weight:700;font-size:14.5px;color:var(--co-ink)}
.co-pay-sub{display:block;font-size:12px;color:var(--co-ink-light);margin-top:2px}
.co-crypto-tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:20px}
.co-crypto-tab{padding:13px 8px;border:2px solid var(--co-line);border-radius:12px;text-align:center;cursor:pointer;background:#fff;color:var(--co-ink-light)}
.co-crypto-tab.active{border-color:var(--co-sky);background:#eef3ff;color:var(--co-ink)}
.co-crypto-tab .c-ico{display:block;font-size:22px}
.co-crypto-tab .c-name{display:block;font-weight:700;font-size:13px;color:inherit}
.co-crypto-tab .c-tick{display:block;font-size:11px;opacity:.7}
.co-panel{display:none}
.co-panel.active{display:block}
.co-amount{background:rgba(10,143,95,.07);border:1.5px solid rgba(10,143,95,.25);border-radius:11px;padding:14px 16px;margin-bottom:14px}
.co-amount-l{font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--co-ink-light)}
.co-amount-v{font-size:22px;font-weight:800;color:var(--co-ink)}
.co-amount-u{font-size:12px;color:var(--co-ink-light)}
.co-nets{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.co-net{background:var(--co-soft);border:1.5px solid var(--co-line);color:var(--co-ink);padding:9px 14px;border-radius:9px;font-weight:600;font-size:13px;cursor:pointer;font-family:inherit}
.co-net.active{background:var(--co-sky);border-color:var(--co-sky);color:#fff}
.co-addr-box{background:var(--co-soft);border:2px solid var(--co-line);border-radius:12px;padding:18px;margin-bottom:14px}
.co-addr-label{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:var(--co-ink-light);margin-bottom:10px}
.co-addr{font-family:monospace;font-size:13px;background:#fff;border:1px solid var(--co-line);border-radius:8px;padding:10px 13px;word-break:break-all;color:var(--co-ink);margin-bottom:10px}
.co-copy{width:100%;background:var(--co-sky);color:#fff;border:none;border-radius:8px;padding:9px;font-weight:700;font-size:13px;cursor:pointer}
.co-copy.copied{background:var(--co-mint)}
.co-warn{background:rgba(240,165,0,.09);border:1px solid rgba(240,165,0,.35);border-radius:10px;padding:13px 15px;font-size:13px;color:#7a5500;line-height:1.6}
.co-hash{width:100%;padding:12px 14px;border:1.5px solid var(--co-line);border-radius:9px;font-size:14px;font-family:monospace;background:#fff;color:var(--co-ink)}
.co-hash-hint{font-size:12.5px;color:var(--co-ink-light);margin-top:8px;line-height:1.55}

/* SUMMARY */
.co-summary{background:#fff;border:1px solid var(--co-line);border-radius:16px;padding:22px}
.co-summary-title{font-weight:800;font-size:16px;margin-bottom:14px;color:var(--co-ink)}
.co-sline{display:flex;justify-content:space-between;gap:10px;font-size:13.5px;padding:6px 0;color:var(--co-ink-light)}
.co-sline strong{color:var(--co-ink)}
.co-stotal{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--co-line);margin-top:12px;padding-top:12px}
.co-stotal-l{font-weight:700;color:var(--co-ink)}
.co-stotal-v{font-size:22px;font-weight:800;color:var(--co-sky)}
.co-guarantee{margin-top:16px;font-size:12.5px;color:var(--co-ink-light);line-height:1.9}

/* REVIEW / SUCCESS */
.co-review-row{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px solid var(--co-line);font-size:13.5px;color:var(--co-ink-light)}
.co-review-row:last-child{border-bottom:none}
.co-review-row span:last-child{font-weight:600;color:var(--co-ink);text-align:right;word-break:break-word}
.co-success{max-width:640px;margin:60px auto;background:#fff;border:1px solid var(--co-line);border-radius:18px;padding:40px 28px;text-align:center;color:var(--co-ink)}
.co-success h1{font-size:28px;margin-bottom:10px}
.co-success p{color:var(--co-ink-light);margin-bottom:22px}
.co-empty{max-width:560px;margin:70px auto;text-align:center;background:#fff;border:1px solid var(--co-line);border-radius:18px;padding:44px 24px;color:var(--co-ink)}
.co-empty p{color:var(--co-ink-light);margin:10px 0 22px}
.co-err{color:#c23b3b;font-size:13.5px;margin-top:10px;font-weight:600}

@media(max-width:940px){.co-wrap{grid-template-columns:1fr}.co-aside{position:static;order:-1}}
@media(max-width:640px){
  .co-row-2,.co-row-3{grid-template-columns:1fr}
  .co-step-label{display:none}
  .co-crypto-tabs{grid-template-columns:repeat(3,1fr)}
  .co-pay-tabs{grid-template-columns:1fr}
  .co-item{flex-wrap:wrap}
  .co-item-right{align-items:flex-start;width:100%;flex-direction:row;justify-content:space-between;flex-wrap:wrap}
  .co-actions .co-btn{flex:1;padding:14px 12px;font-size:14px}
}

/* CONFIRM STEP (review blocks, key/value rows, agreement, order ref) */
.co-wrap-single{grid-template-columns:1fr;max-width:720px}
.co-review-block{border:1px solid var(--co-line);border-radius:12px;padding:16px 18px;margin-bottom:14px;background:#fff}
.co-review-block h3{font-size:14px;font-weight:800;margin-bottom:10px;color:var(--co-ink)}
.co-kv{display:flex;justify-content:space-between;gap:12px;font-size:13.5px;padding:7px 0;border-bottom:1px dashed var(--co-line);color:var(--co-ink-light)}
.co-kv:last-child{border-bottom:none}
.co-kv strong{color:var(--co-ink);text-align:right;word-break:break-word;font-weight:700}
.co-kv-total{border-top:1px solid var(--co-line);border-bottom:none;margin-top:6px;padding-top:11px}
.co-kv-total span,.co-kv-total strong{font-size:15.5px;font-weight:800;color:var(--co-ink)}
.co-mono{font-family:monospace;font-size:12.5px}
.co-check{display:flex;gap:10px;align-items:flex-start;margin-top:16px;font-size:13px;color:var(--co-ink-light);line-height:1.6;cursor:pointer}
.co-check input{margin-top:3px;width:16px;height:16px;flex-shrink:0;accent-color:var(--co-sky)}
.co-check a{color:var(--co-sky);font-weight:600;text-decoration:underline}
.co-order-ref{background:var(--co-soft);border:1px solid var(--co-line);border-radius:12px;padding:16px;margin:14px auto 4px;max-width:420px;font-size:13px;color:var(--co-ink-light);line-height:1.9}
.co-order-ref strong{font-family:monospace;font-size:15px;color:var(--co-ink);word-break:break-all}