/* Redesigned checkout (predaj.php) */
:root {
  --clr-bg: #23201d;
  --clr-bg-alt: #1c1917;
  --clr-panel: #2d221b;
  --clr-panel-alt: #181312;
  --clr-accent: #e0c097;
  --clr-accent-alt: #8d6748;
  --clr-text: #ffffff;
  --clr-text-dim: #d1c8c1;
  --radius-s: 6px;
  --radius-m: 12px;
  --radius-l: 18px;
  --shadow-soft: 0 3px 14px -2px rgba(0,0,0,0.45);
  --transition: 160ms ease;
  --focus-ring: 0 0 0 3px rgba(224,192,151,0.35),0 0 0 1px var(--clr-accent);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
/* prevent accidental horizontal scroll on small devices */
html, body { overflow-x: hidden; }
body {
  margin: 0; font-family: "Segoe UI", Arial, sans-serif; background: var(--clr-bg); color: var(--clr-text);
  -webkit-font-smoothing: antialiased; line-height: 1.38;
  padding: clamp(10px,2vw,28px) clamp(10px,3vw,42px);
  font-size: clamp(14px, 0.95rem + 0.15vw, 16.5px);
}

h1,h2,h3 { font-weight: 600; line-height: 1.15; margin: 0 0 .6em; letter-spacing:.5px; }

.checkout-layout { display: grid; grid-template-columns: minmax(300px,420px) 1fr; gap: clamp(22px,2.7vw,52px); align-items: start; max-width: 1480px; margin: 0 auto; }
@media (max-width: 1080px){ .checkout-layout { grid-template-columns: 1fr; } /* put summary above form on narrow screens */ .summary-panel { order: -1; } }

.panel { background: linear-gradient(145deg,var(--clr-panel),var(--clr-panel-alt)); border:1px solid #3a2d25; border-radius: var(--radius-l); padding: clamp(18px,2vw,36px) clamp(18px,2.3vw,42px); box-shadow: var(--shadow-soft); position: relative; overflow: hidden; }
.panel:before { content:""; position:absolute; inset:0; background:radial-gradient(circle at 85% 8%,rgba(255,255,255,0.06),transparent 60%); pointer-events:none; }

.panel-header { font-size: clamp(1.6rem,2.2vw,2.3rem); font-weight:700; color: var(--clr-accent); margin-top:0; margin-bottom:.9em; letter-spacing:1px; text-shadow:0 2px 6px #000; }

/* Summary */
.summary-panel .items-list { list-style:none; margin:0 0 1.3em; padding:0; display:flex; flex-direction:column; gap:12px; }
.summary-panel .item { background:#34271f; padding:14px 16px 12px; border:1px solid #3e3027; border-radius: var(--radius-m); display:grid; grid-template-columns: 1fr auto; gap:10px; align-items:center; position:relative; }
.summary-panel .item:before { content:""; position:absolute; inset:0; border-radius:inherit; background:linear-gradient(110deg,rgba(255,255,255,0.04),transparent 60%); pointer-events:none; }
.summary-panel .item-title { font-weight:600; font-size: .95rem; letter-spacing:.4px; }
.summary-panel .badge { background: var(--clr-accent-alt); color:#fff; font-size:.75rem; font-weight:600; padding:4px 8px; border-radius: 50px; letter-spacing:.5px; box-shadow:0 2px 4px rgba(0,0,0,.4); }
.summary-panel .item-meta { font-size: .7rem; opacity:.8; margin-top:4px; letter-spacing:.5px; }
.summary-panel .empty { padding:24px 8px; text-align:center; font-weight:500; color: var(--clr-text-dim); }

.price-box { background:#3a2d25; padding:14px 18px; border-radius: var(--radius-m); font-size:1.02rem; font-weight:600; display:flex; justify-content:space-between; align-items:center; margin-bottom:1em; letter-spacing:.5px; }
.price-box span { color: var(--clr-accent); }

.notice { background:#2e251f; border:1px solid #42352c; padding:12px 14px; border-radius: var(--radius-m); font-size:.8rem; color: var(--clr-text-dim); line-height:1.4; margin-bottom:1.3em; }

/* Form */
.form-panel form { display:grid; gap:16px; }
.field-group { display:flex; flex-direction:column; gap:6px; }
.field-group.inline { flex-direction:row; gap:18px; }
.field-group.inline .field-group { flex:1; }
label { font-size:.85rem; font-weight:600; letter-spacing:.5px; color: var(--clr-accent); text-transform:uppercase; }
input[type=text],input[type=email],input[type=number] { background:#34271f; border:1px solid #43352c; padding:14px 16px 12px; border-radius: var(--radius-m); font-size:.9rem; color: var(--clr-text); transition: var(--transition); outline:none; }
input[type=text]:focus,input[type=email]:focus,input[type=number]:focus { border-color: var(--clr-accent); box-shadow: var(--focus-ring); }

.radio-group { display:flex; flex-wrap:wrap; gap:10px 18px; } 
.radio-pill { position:relative; }
.radio-pill input { position:absolute; opacity:0; pointer-events:none; }
.radio-pill span { display:inline-block; padding:10px 18px; background:#34271f; border:1px solid #43352c; border-radius:50px; font-size:.75rem; font-weight:600; letter-spacing:.5px; cursor:pointer; transition:var(--transition); }
.radio-pill input:checked + span { background: var(--clr-accent); color:#23201d; border-color: var(--clr-accent); box-shadow:0 2px 10px -2px rgba(0,0,0,0.6); }
.radio-pill input:focus + span { outline:2px solid var(--clr-accent); outline-offset:2px; }

.actions { display:flex; justify-content:flex-end; margin-top:4px; }
.btn-submit { background:linear-gradient(140deg,var(--clr-accent-alt),#6f4f35); color:#fff; border:none; font-weight:700; letter-spacing:.8px; font-size:.95rem; padding:16px 32px 14px; border-radius: var(--radius-l); cursor:pointer; position:relative; overflow:hidden; box-shadow:0 6px 18px -6px rgba(0,0,0,0.6); transition:var(--transition); touch-action:manipulation; }
.btn-submit:before { content:""; position:absolute; inset:0; background:linear-gradient(120deg,rgba(255,255,255,0.2),transparent 70%); opacity:0; transition:var(--transition); }
.btn-submit:hover { transform:translateY(-3px); box-shadow:0 12px 26px -10px rgba(0,0,0,.7); }
.btn-submit:hover:before { opacity:1; }
.btn-submit:active { transform:translateY(-1px) scale(.97); }

/* Accessibility & small helpers */
.sr-only { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0 0 0 0); border:0; }

/* --- Mobile optimizations --- */
@media (max-width: 780px){
  .checkout-layout { gap:26px; }
  .panel { padding:26px 22px 30px; }
  .panel-header { font-size: clamp(1.45rem, 1.2rem + 1.3vw, 1.8rem); }
  .radio-group { gap:8px 14px; }
}
@media (max-width: 640px){
  body { padding:14px 12px 36px; }
  .checkout-layout { gap:22px; }
  .panel { padding:22px 18px 28px; }
  .panel-header { font-size:1.48rem; }
  .summary-panel { position:relative; }
  .summary-panel.collapsed .items-list, .summary-panel.collapsed .price-box, .summary-panel.collapsed .notice, .summary-panel.collapsed .actions { display:none; }
  .summary-toggle { display:inline-flex; align-items:center; gap:8px; font-size:.8rem; letter-spacing:.5px; background:#34271f; border:1px solid #43352c; padding:10px 14px 9px; border-radius:50px; cursor:pointer; color:var(--clr-accent); font-weight:600; margin-bottom:14px; }
  .summary-toggle svg { width:14px; height:14px; fill:var(--clr-accent); transition:200ms; }
  .summary-panel.collapsed .summary-toggle svg { transform:rotate(-90deg); }
  .actions { justify-content:stretch; }
  .btn-submit { width:100%; }
  input[type=text],input[type=email],input[type=number] { padding:12px 12px 10px; width:100%; box-sizing:border-box; min-width:0; }
  .radio-pill span { padding:9px 14px; font-size:.72rem; }
  /* stack inline groups vertically on small screens */
  .field-group.inline { flex-direction:column; }
}
@media (max-width: 420px){
  body { font-size:14px; }
  .panel { padding:20px 16px 26px; }
  .panel-header { font-size:1.38rem; }
  .radio-pill span { padding:8px 14px; }
  .item-title { font-size:.85rem; }
  .badge { padding:4px 7px; }
}

/* Ensure panels use full available width and avoid extra horizontal margins */
.checkout-layout, .panel { width:100%; max-width:100%; }
.panel { box-sizing:border-box; }

/* Inputs and buttons full-width fallback */
input, textarea, select, .btn-submit, .btn-buy { max-width:100%; }

/* JS helper class (if we add script) */
.visually-hidden { position:absolute!important; height:1px; width:1px; overflow:hidden; clip:rect(1px,1px,1px,1px); white-space:nowrap; }