/* =========================================================
   MIRAS · تسویه‌حساب (Checkout) — shared across /checkout,
   /checkout-shipping, /checkout-payment (one real page per step).
   Tokens/reset/footer/mobile-nav: style.css. Nav/drawer/toast/cart-btn:
   shop.css (both loaded by header.php). No Bootstrap grid (not loaded
   site-wide) - .co-grid/.co-main/.co-aside replace row/col-*.
   ========================================================= */
:root{ --co-ease:cubic-bezier(.16,1,.3,1) }

.co-wrap{ width:100%; max-width:1180px; margin-inline:auto; padding-inline:clamp(1.2rem,4vw,3rem) }
.co-top{ padding:8.5rem 0 2.5rem }
.co-top h1{ font-family:var(--font-fa); font-weight:200; font-size:clamp(1.6rem,3.4vw,2.4rem); color:var(--silk-100); margin:0 }
.co-top .eyebrow{ font-family:var(--font-body) }

/* Stepper - purely visual now; past steps link to their real page */
.co-steps{ display:flex; align-items:center; gap:.5rem; margin:2.4rem 0 3rem; flex-wrap:nowrap; overflow-x:auto; padding-bottom:.4rem }
.co-step{ display:flex; align-items:center; gap:.65rem; flex:0 0 auto; background:none; border:0; padding:0; font-family:var(--font-fa); font-weight:300; font-size:.85rem; color:var(--silver-lo); cursor:default; transition:color .4s; text-decoration:none }
.co-step .dot{ width:30px; height:30px; flex:0 0 30px; border-radius:50%; display:grid; place-items:center; border:1px solid rgba(230,232,236,.16); background:transparent; font-family:var(--font-fa); font-size:.76rem; color:var(--silver-lo); transition:background .45s var(--co-ease),color .45s,border-color .45s,box-shadow .45s }
.co-step.done{ color:var(--silk-200); cursor:pointer }
.co-step.done .dot{ background:rgba(230,232,236,.1); border-color:rgba(230,232,236,.34); color:var(--silk-100) }
.co-step.done:hover .dot{ border-color:var(--silk-100) }
.co-step.on{ color:var(--silk-100) }
.co-step.on .dot{ background:linear-gradient(135deg,var(--silk-100),var(--silver)); border-color:var(--silk-100); color:var(--ink-900); box-shadow:0 0 24px -6px rgba(230,232,236,.6) }
.co-step .bar{ width:clamp(18px,5vw,64px); height:1px; background:rgba(230,232,236,.14); margin-inline:.35rem; flex:0 0 auto }
.co-step .bar.lit{ background:var(--silver) }

.co-grid{ display:grid; grid-template-columns:1.55fr 1fr; gap:2rem; align-items:start }
@media (max-width:991px){ .co-grid{ grid-template-columns:1fr } }

.co-card{ position:relative; padding:clamp(1.4rem,3vw,2rem); border-radius:22px; background:linear-gradient(180deg,#0c0c0d,#080809); border:1px solid rgba(230,232,236,.08); margin-bottom:1.2rem }
.co-card::before{ content:""; position:absolute; inset-inline:1px; top:0; height:1px; background:linear-gradient(90deg,transparent,rgba(255,255,255,.13),transparent) }
.co-card > h2{ font-family:var(--font-fa); font-weight:400; font-size:1.05rem; color:var(--silk-100); margin:0 0 1.4rem; display:flex; align-items:center; gap:.6rem }
.co-card > h2 i{ color:var(--silver); font-size:1rem }
.co-card > h2 .co-edit{ margin-inline-start:auto; font-size:.75rem; padding:.35rem .9rem }

/* Cart lines */
.co-line{ display:flex; gap:1rem; align-items:flex-start; padding:1.15rem 0; border-bottom:1px solid rgba(230,232,236,.07) }
.co-line:last-child{ border-bottom:0; padding-bottom:0 }
.co-line .co-lt{ width:78px; height:78px; flex:0 0 78px; border-radius:10px; overflow:hidden; border:1px solid rgba(230,232,236,.08); background:#080809 }
.co-line .co-lt img{ width:100%; height:100%; object-fit:cover }
.co-line .co-ln{ flex:1; min-width:0 }
.co-line .co-ln b{ display:block; font-family:var(--font-fa); font-weight:400; font-size:.95rem; color:var(--silk-100) }
.co-line .co-ln .co-sku{ display:block; font-family:var(--font-body); font-weight:300; font-size:.68rem; letter-spacing:.08em; color:var(--silver-lo); margin-top:.25rem }
.co-line .co-ln .co-unit{ font-family:var(--font-fa); font-weight:300; font-size:.78rem; color:var(--silver-lo); margin-top:.45rem }
.co-line .co-lr{ text-align:end; display:flex; flex-direction:column; align-items:flex-end; gap:.7rem }
.co-line .co-lp{ font-family:var(--font-fa); font-weight:400; font-size:.98rem; color:var(--silk-100); white-space:nowrap }
.co-qty{ display:flex; align-items:center; gap:.35rem }
.co-qty button{ width:28px; height:28px; border-radius:50%; display:grid; place-items:center; cursor:pointer; color:var(--silk-100); background:transparent; border:1px solid rgba(230,232,236,.16); transition:background .3s,color .3s,border-color .3s }
.co-qty button:hover{ background:var(--silk-100); color:var(--ink-900); border-color:var(--silk-100) }
.co-qty .co-q{ min-width:26px; text-align:center; font-family:var(--font-fa); font-size:.85rem; color:var(--silk-100) }
.co-line .co-rm{ background:none; border:0; cursor:pointer; font-family:var(--font-fa); font-weight:300; font-size:.72rem; color:var(--silver-lo); transition:color .3s }
.co-line .co-rm:hover{ color:#D98A83 }

/* Empty cart */
.co-empty{ text-align:center; padding:clamp(3rem,8vw,5.5rem) 1rem }
.co-empty .co-ill{ width:80px; height:80px; margin:0 auto 1.8rem; border-radius:26px; display:grid; place-items:center; font-size:1.8rem; color:var(--silver-lo); background:linear-gradient(145deg,#17181a,#0b0c0d); border:1px solid rgba(230,232,236,.1) }
.co-empty h2{ font-family:var(--font-fa); font-weight:300; font-size:1.4rem; color:var(--silk-100); margin:0 0 .8rem }
.co-empty p{ font-family:var(--font-fa); font-weight:300; font-size:.88rem; line-height:2; color:var(--silver-lo); max-width:44ch; margin:0 auto 2.2rem }

/* Form fields */
.co-fl{ position:relative; margin-bottom:1.25rem }
.co-fl input, .co-fl textarea, .co-fl select{ width:100%; padding:1.45rem 1rem .65rem; border-radius:13px; background:rgba(255,255,255,.02); border:1px solid rgba(230,232,236,.1); color:var(--silk-100); font-family:var(--font-fa); font-weight:300; font-size:.9rem; line-height:1.7; transition:border-color .4s,background .4s,box-shadow .4s; appearance:none }
.co-fl textarea{ min-height:92px; resize:vertical; padding-top:1.6rem }
.co-fl input::placeholder, .co-fl textarea::placeholder{ color:transparent }
.co-fl input:hover, .co-fl textarea:hover, .co-fl select:hover{ border-color:rgba(230,232,236,.2) }
.co-fl input:focus, .co-fl textarea:focus, .co-fl select:focus{ outline:none; border-color:var(--silver); background:rgba(255,255,255,.035); box-shadow:0 0 0 4px rgba(216,220,226,.07) }
.co-fl label{ position:absolute; top:1rem; inset-inline-start:1rem; font-family:var(--font-fa); font-weight:300; font-size:.9rem; color:var(--silver-lo); pointer-events:none; transform-origin:inline-start top; transition:transform .35s var(--co-ease),color .35s }
.co-fl input:focus + label, .co-fl input:not(:placeholder-shown) + label, .co-fl textarea:focus + label, .co-fl textarea:not(:placeholder-shown) + label, .co-fl select:focus + label, .co-fl select.filled + label{ transform:translateY(-.68rem) scale(.76); color:var(--glow) }
.co-fl .co-caret{ position:absolute; top:1.4rem; inset-inline-end:1rem; color:var(--silver-lo); pointer-events:none; font-size:.68rem }
.co-fl .co-req{ color:var(--silver); opacity:.7 }
.co-fl .co-err{ display:block; margin-top:.45rem; font-family:var(--font-fa); font-weight:300; font-size:.7rem; color:#D98A83; opacity:0; transform:translateY(-4px); transition:opacity .3s,transform .3s }
.co-fl.invalid input, .co-fl.invalid textarea, .co-fl.invalid select{ border-color:rgba(217,138,131,.55) }
.co-fl.invalid .co-err{ opacity:1; transform:none }
.co-fl.valid input, .co-fl.valid textarea, .co-fl.valid select{ border-color:rgba(127,185,139,.4) }
.co-fl select:disabled{ opacity:.4; cursor:not-allowed }
.co-fl select:disabled + label{ color:rgba(230,232,236,.28) }
.co-fl select{ color-scheme:dark }
.co-fl select option{ background:#0d0d0e; color:var(--silk-100) }
.co-2col{ display:grid; grid-template-columns:1fr 1fr; gap:0 1rem }
@media (max-width:560px){ .co-2col{ grid-template-columns:1fr } }

/* Option rows (address / shipping / payment) */
.co-opt{ display:flex; align-items:center; gap:1rem; padding:1.05rem 1.2rem; margin-bottom:.7rem; border-radius:15px; background:rgba(255,255,255,.015); border:1px solid rgba(230,232,236,.1); cursor:pointer; transition:border-color .35s,background .35s,box-shadow .35s }
.co-opt:hover{ border-color:rgba(230,232,236,.24); background:rgba(255,255,255,.03) }
.co-opt:has(input:checked){ border-color:var(--silver); background:rgba(216,220,226,.05); box-shadow:0 0 0 3px rgba(216,220,226,.06) }
.co-opt.disabled{ opacity:.4; pointer-events:none }
.co-opt input{ position:absolute; opacity:0; width:0; height:0 }
.co-opt .co-mk{ width:19px; height:19px; flex:0 0 19px; border-radius:50%; border:1px solid rgba(230,232,236,.3); display:grid; place-items:center; transition:border-color .35s }
.co-opt .co-mk::after{ content:""; width:9px; height:9px; border-radius:50%; background:var(--silk-100); transform:scale(0); transition:transform .35s var(--co-ease) }
.co-opt:has(input:checked) .co-mk{ border-color:var(--silk-100) }
.co-opt:has(input:checked) .co-mk::after{ transform:scale(1) }
.co-opt .co-oi{ width:38px; height:38px; flex:0 0 38px; border-radius:11px; display:grid; place-items:center; font-size:1rem; color:var(--silver); background:linear-gradient(145deg,#17181a,#0b0c0d); border:1px solid rgba(230,232,236,.1) }
.co-opt .co-oi.co-oi-logo{ background:#f3f3f5; border-color:rgba(230,232,236,.18) }
.co-opt .co-oi-logo img{ width:100%; height:100%; object-fit:contain; padding:6px; border-radius:11px }
.co-opt .co-on{ flex:1; min-width:0 }
.co-opt .co-on b{ display:block; font-family:var(--font-fa); font-weight:400; font-size:.9rem; color:var(--silk-100) }
.co-opt .co-on span{ display:block; font-family:var(--font-fa); font-weight:300; font-size:.75rem; color:var(--silver-lo); margin-top:.2rem }
.co-opt .co-oc{ font-family:var(--font-fa); font-weight:400; font-size:.86rem; color:var(--silk-100); white-space:nowrap }
.co-opt .co-oc.free{ color:#7FB98B }
.co-hint{ font-family:var(--font-fa); font-weight:300; font-size:.78rem; color:var(--silver-lo); margin:0 0 1rem }

/* Sticky summary */
.co-sum-rail{ position:sticky; top:6.5rem }
.co-summary{ position:relative; padding:1.6rem; border-radius:22px; background:linear-gradient(180deg,#0d0d0e,#070708); border:1px solid rgba(230,232,236,.1); box-shadow:0 30px 70px -40px rgba(0,0,0,.9) }
.co-summary::before{ content:""; position:absolute; inset-inline:1px; top:0; height:1px; background:linear-gradient(90deg,transparent,rgba(255,255,255,.14),transparent) }
.co-summary h3{ font-family:var(--font-fa); font-weight:400; font-size:1rem; color:var(--silk-100); margin:0 0 1.2rem }
.co-mini{ display:flex; gap:.75rem; align-items:center; padding:.55rem 0 }
.co-mini .co-mt{ width:46px; height:46px; flex:0 0 46px; border-radius:9px; overflow:hidden; border:1px solid rgba(230,232,236,.08); background:#080809; position:relative }
.co-mini .co-mt img{ width:100%; height:100%; object-fit:cover }
.co-mini .co-mt .co-n{ position:absolute; top:-5px; inset-inline-end:-5px; min-width:17px; height:17px; padding:0 4px; display:grid; place-items:center; border-radius:100px; font-family:var(--font-fa); font-size:.6rem; color:var(--ink-900); background:var(--silk-100) }
.co-mini .co-mn{ flex:1; min-width:0; font-family:var(--font-fa); font-weight:300; font-size:.82rem; color:var(--silk-200); overflow:hidden; text-overflow:ellipsis; white-space:nowrap }
.co-mini .co-mp{ font-family:var(--font-fa); font-weight:300; font-size:.8rem; color:var(--silk-100); white-space:nowrap }
.co-srow{ display:flex; justify-content:space-between; align-items:baseline; padding:.42rem 0; font-family:var(--font-fa); font-weight:300; font-size:.84rem; color:var(--silver-lo) }
.co-srow .co-v{ color:var(--silk-200) }
.co-srow .co-v.cut{ color:#7FB98B }
.co-srow.total{ margin-top:.9rem; padding-top:1.1rem; border-top:1px solid rgba(230,232,236,.12); font-size:.9rem; color:var(--silk-300) }
.co-srow.total b{ font-family:var(--font-fa); font-weight:400; font-size:1.35rem; color:var(--silk-100) }
.co-coupon{ display:flex; gap:.5rem; margin:1.1rem 0 }
.co-coupon input{ flex:1; min-width:0; padding:.7rem .9rem; border-radius:100px; background:rgba(255,255,255,.02); border:1px solid rgba(230,232,236,.12); color:var(--silk-100); font-family:var(--font-fa); font-weight:300; font-size:.8rem; transition:border-color .35s }
.co-coupon input:focus{ outline:none; border-color:var(--silver) }
.co-coupon button{ padding:.7rem 1.1rem; border-radius:100px; cursor:pointer; background:transparent; border:1px solid rgba(230,232,236,.16); color:var(--silk-100); font-family:var(--font-fa); font-weight:300; font-size:.8rem; transition:background .35s,border-color .35s; white-space:nowrap }
.co-coupon button:hover{ background:rgba(230,232,236,.06); border-color:rgba(230,232,236,.36) }
.co-coupon-msg{ font-family:var(--font-fa); font-weight:300; font-size:.72rem; margin:-.5rem 0 .8rem }
.co-coupon-msg.ok{ color:#7FB98B }
.co-coupon-msg.bad{ color:#D98A83 }
.co-trust{ display:flex; flex-direction:column; gap:.6rem; margin-top:1.3rem; padding-top:1.3rem; border-top:1px solid rgba(230,232,236,.08) }
.co-trust span{ display:flex; align-items:center; gap:.5rem; font-family:var(--font-fa); font-weight:300; font-size:.72rem; color:var(--silver-lo) }
.co-trust i{ color:var(--silver); font-size:.85rem }

/* Buttons */
.co-btn-silver{ display:inline-flex; align-items:center; justify-content:center; gap:.55rem; padding:.95rem 2rem; border-radius:100px; font-family:var(--font-fa); font-weight:400; font-size:.9rem; text-decoration:none; border:1px solid var(--silk-100); background:linear-gradient(135deg,var(--silk-100),var(--silver)); color:var(--ink-900); cursor:pointer; transition:transform .4s var(--co-ease),box-shadow .4s,opacity .3s }
.co-btn-silver:hover{ transform:translateY(-2px); box-shadow:0 18px 40px -18px rgba(230,232,236,.5); color:var(--ink-900) }
.co-btn-silver[disabled]{ opacity:.55; cursor:not-allowed; transform:none }
.co-btn-ghost{ display:inline-flex; align-items:center; justify-content:center; gap:.55rem; padding:.95rem 1.7rem; border-radius:100px; font-family:var(--font-fa); font-weight:300; font-size:.9rem; text-decoration:none; color:var(--silk-100); background:transparent; border:1px solid rgba(230,232,236,.16); cursor:pointer; transition:border-color .4s,background .4s }
.co-btn-ghost:hover{ border-color:rgba(230,232,236,.42); background:rgba(230,232,236,.04); color:var(--silk-100) }
.co-nav-row{ display:flex; gap:.7rem; align-items:center; margin-top:1.6rem; flex-wrap:wrap }
.co-nav-row .co-grow{ flex:1 }
@media (max-width:640px){ .co-nav-row .co-btn-silver, .co-nav-row .co-btn-ghost{ width:100% } }

/* Server-side form error banner (replaces the old client-only toast for step transitions) */
.co-formerr{ display:flex; align-items:center; gap:.6rem; padding:.9rem 1.2rem; margin-bottom:1.2rem; border-radius:14px; background:rgba(217,138,131,.08); border:1px solid rgba(217,138,131,.3); font-family:var(--font-fa); font-weight:300; font-size:.82rem; color:#D98A83 }

@media (prefers-reduced-motion:reduce){ *,*::before,*::after{ animation-duration:.001ms!important; transition-duration:.001ms!important } }