/* ═══════════════════════════════════════════════════
   PageCheckout — style.css
   Professional dark-blue theme · Mobile-first
═══════════════════════════════════════════════════ */

/* ── Design tokens ── */
:root {
  /* Backgrounds */
  --bg:       #0f172a;
  --bg-2:     #1e293b;
  --bg-3:     #263144;
  --bg-4:     #111827;
  --bg-5:     #1a2438;
  --bg-6:     #2d3f55;

  /* Accent */
  --rose:     #e05252;
  --rose-hi:  #ef5f5f;
  --rose-lo:  #c03a3a;
  --rose-dim: rgba(224,82,82,.15);
  --rose-fog: rgba(224,82,82,.08);
  --rose-rim: rgba(224,82,82,.32);

  /* Text */
  --text:     #f1f5f9;
  --text-2:   #cbd5e1;
  --text-3:   #94a3b8;
  --text-4:   #64748b;

  /* Borders */
  --bdr:      #334155;
  --bdr-lo:   #1e293b;
  --bdr-hi:   #475569;

  /* Status */
  --ok:       #34d399;
  --ok-dim:   rgba(52,211,153,.12);
  --ok-rim:   rgba(52,211,153,.30);

  /* Radius */
  --r-s: 8px;
  --r:   12px;
  --r-l: 18px;

  --serif: 'Playfair Display', Georgia, serif;
  --sans:  'Outfit', sans-serif;
  --ease:  cubic-bezier(.4,0,.2,1);
  --pop:   cubic-bezier(.34,1.56,.64,1);
  --tap:   48px;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
button, input, select, textarea { font-family: inherit; }

/* ── Utility ── */
.hidden { display: none !important; }

/* ═══════════════════════════════════════════════════
   BACKGROUND
═══════════════════════════════════════════════════ */
.bg { position: fixed; inset: 0; pointer-events: none; z-index: 0; overflow: hidden; }

.orb { position: absolute; border-radius: 50%; filter: blur(110px); }
.orb-a {
  width: min(600px, 120vw); height: 400px;
  background: radial-gradient(ellipse, rgba(96,130,195,.18) 0%, transparent 70%);
  top: -80px; right: -60px;
}
.orb-b {
  width: min(500px, 120vw); height: 500px;
  background: radial-gradient(ellipse, rgba(224,82,82,.07) 0%, transparent 70%);
  bottom: 0; left: -120px;
}
.grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(148,163,184,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148,163,184,.03) 1px, transparent 1px);
  background-size: 48px 48px;
}

/* ═══════════════════════════════════════════════════
   HEADER
═══════════════════════════════════════════════════ */
header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(15,23,42,.9);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid var(--bdr);
  padding: 0 clamp(16px, 4vw, 56px);
}
.hdr {
  max-width: 940px; margin: 0 auto;
  height: 60px; display: flex; align-items: center; justify-content: space-between;
}
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.logo-mark {
  width: 34px; height: 34px; border-radius: 9px; flex-shrink: 0;
  background: linear-gradient(140deg, var(--rose-hi), var(--rose-lo));
  display: grid; place-items: center;
  box-shadow: 0 2px 14px rgba(224,82,82,.3);
}
.logo-name {
  font-family: var(--serif);
  font-size: clamp(1rem, 3vw, 1.18rem);
  font-weight: 600; color: var(--text); letter-spacing: -.01em;
}
.hdr-right {
  display: flex; align-items: center; gap: 7px;
  font-size: .72rem; font-weight: 500; color: var(--text-3);
}
.pulse {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--ok); box-shadow: 0 0 6px var(--ok);
  animation: blip 2.4s ease-in-out infinite; flex-shrink: 0;
}
@keyframes blip { 0%,100%{opacity:1} 50%{opacity:.3} }

/* ═══════════════════════════════════════════════════
   MAIN LAYOUT
═══════════════════════════════════════════════════ */
main {
  position: relative; z-index: 1;
  max-width: 940px; margin: 0 auto;
  padding: clamp(28px, 5vw, 48px) clamp(16px, 4vw, 56px) 80px;
}

/* Section header */
.section-head { margin-bottom: clamp(22px, 4vw, 34px); animation: rise .5s var(--ease) both; }
.eyebrow {
  font-size: .68rem; font-weight: 600;
  letter-spacing: .16em; text-transform: uppercase; color: var(--rose);
  display: flex; align-items: center; gap: 9px; margin-bottom: 10px;
}
.eyebrow::before { content: ''; width: 18px; height: 1px; background: var(--rose); }
.section-head h1 {
  font-family: var(--serif);
  font-size: clamp(1.55rem, 4.5vw, 2.3rem);
  font-weight: 600; letter-spacing: -.03em; line-height: 1.15;
  color: var(--text); margin-bottom: 8px;
}
.subtext { font-size: clamp(.82rem, 2vw, .88rem); color: var(--text-3); line-height: 1.65; }

/* ── Card ── */
.card {
  background: var(--bg-2);
  border: 1px solid var(--bdr);
  border-radius: var(--r-l);
  padding: clamp(20px, 4vw, 36px);
  margin-bottom: 14px;
  position: relative; overflow: hidden;
  animation: rise .5s var(--ease) both;
}
.card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--bdr-hi), transparent);
}
.card-label {
  font-size: .66rem; font-weight: 600; letter-spacing: .14em;
  text-transform: uppercase; color: var(--text-4); margin-bottom: 20px;
  display: flex; align-items: center; gap: 10px;
}
.card-label::after { content: ''; flex: 1; height: 1px; background: var(--bdr); }

/* ── Form ── */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.full-width { grid-column: 1 / -1; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field label { font-size: .76rem; font-weight: 500; color: var(--text-2); letter-spacing: .02em; }
.req      { color: var(--rose); margin-left: 2px; }
.optional { color: var(--text-4); font-size: .7em; }

.field input,
.field select,
.field textarea {
  width: 100%;
  background: var(--bg-4);
  border: 1px solid var(--bdr);
  border-radius: var(--r-s);
  padding: 13px 15px;
  color: var(--text);
  font-size: clamp(.875rem, 2.2vw, .92rem); line-height: 1.4;
  outline: none; appearance: none; -webkit-appearance: none;
  transition: border-color .2s, box-shadow .2s, background .2s;
  min-height: var(--tap);
}
.field input::placeholder, .field textarea::placeholder { color: var(--text-4); }
.field input:hover, .field select:hover, .field textarea:hover { border-color: var(--bdr-hi); }
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--rose-rim);
  background: var(--bg-5);
  box-shadow: 0 0 0 3px var(--rose-fog);
}
.field.error input, .field.error select, .field.error textarea {
  border-color: rgba(224,82,82,.5);
  box-shadow: 0 0 0 3px var(--rose-fog);
}
.field-error { font-size: .71rem; color: var(--rose); display: none; }
.field.error .field-error { display: block; }

.field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%2364748b'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 15px center;
  padding-right: 38px; cursor: pointer;
}
.field select option { background: #1e293b; color: #f1f5f9; }
.field textarea { resize: vertical; min-height: 86px; line-height: 1.6; }

/* ── Buttons ── */
.btn-primary {
  width: 100%; min-height: var(--tap);
  padding: 15px 24px;
  background: linear-gradient(140deg, var(--rose-hi), var(--rose-lo));
  border: none; border-radius: var(--r);
  color: #fff; font-family: var(--sans);
  font-size: clamp(.85rem, 2.5vw, .92rem);
  font-weight: 600; letter-spacing: .06em; text-transform: uppercase;
  cursor: pointer; position: relative; overflow: hidden;
  display: flex; align-items: center; justify-content: center; gap: 10px;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease);
  box-shadow: 0 4px 22px rgba(224,82,82,.28), 0 1px 4px rgba(0,0,0,.3);
  -webkit-tap-highlight-color: transparent;
}
.btn-primary:hover  { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(224,82,82,.38); }
.btn-primary:active { transform: translateY(0) scale(.99); }
.btn-primary:disabled { opacity: .5; cursor: not-allowed; transform: none; }

.btn-text    { display: flex; align-items: center; gap: 9px; }
.btn-loading { display: none; align-items: center; gap: 9px; }
.btn-primary.loading .btn-text    { display: none; }
.btn-primary.loading .btn-loading { display: flex; }

@keyframes spin { to { transform: rotate(360deg); } }
.spinner {
  width: 16px; height: 16px; border-radius: 50%;
  border: 2px solid rgba(255,255,255,.3); border-top-color: #fff;
  animation: spin .7s linear infinite; flex-shrink: 0;
}

.btn-back {
  display: inline-flex; align-items: center; gap: 8px;
  min-height: 40px;
  background: transparent; border: 1px solid var(--bdr); border-radius: var(--r-s);
  padding: 9px 16px; color: var(--text-3);
  font-size: .78rem; font-weight: 500;
  cursor: pointer; transition: all .2s; margin-bottom: 20px;
  -webkit-tap-highlight-color: transparent;
}
.btn-back:hover { border-color: var(--bdr-hi); color: var(--text-2); background: var(--bg-3); }

.action-wrap { margin-top: 22px; }
.trust-line {
  display: flex; align-items: center; justify-content: center; gap: 6px;
  font-size: .7rem; color: var(--text-4); margin-top: 11px;
  flex-wrap: wrap; text-align: center;
}

/* ── Order bar ── */
.order-bar {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--bg-3); border: 1px solid var(--bdr); border-radius: var(--r);
  padding: 14px 18px; margin-bottom: 16px; gap: 12px; flex-wrap: wrap;
  animation: rise .4s var(--ease) both;
}
.ob-left  { display: flex; align-items: center; gap: 12px; min-width: 0; }
.ob-info  { min-width: 0; }
.ob-avatar {
  width: 38px; height: 38px; border-radius: 50%; flex-shrink: 0;
  background: linear-gradient(140deg, var(--rose-lo), var(--bg-6));
  display: grid; place-items: center;
  font-family: var(--serif); font-size: .9rem; font-weight: 600; color: var(--text);
  border: 1px solid var(--rose-rim);
}
.ob-name  { font-size: .9rem; font-weight: 500; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ob-email { font-size: .72rem; color: var(--text-3); margin-top: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 200px; }
.ob-plan {
  background: var(--rose-dim); border: 1px solid var(--rose-rim);
  border-radius: 40px; padding: 5px 14px;
  font-size: .72rem; font-weight: 600; color: var(--rose); white-space: nowrap; flex-shrink: 0;
}

/* ═══════════════════════════════════════════════════
   PAYMENT TILES
═══════════════════════════════════════════════════ */
.pay-grid {
  display: grid; grid-template-columns: repeat(3,1fr);
  gap: 10px; margin-bottom: 18px;
}
.pay-tile {
  background: var(--bg-4); border: 1.5px solid var(--bdr); border-radius: var(--r);
  padding: clamp(14px,3vw,20px) clamp(10px,2vw,14px);
  cursor: pointer; user-select: none;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  transition: all .22s var(--ease); position: relative; overflow: hidden;
  -webkit-tap-highlight-color: transparent;
}
.pay-tile:hover  { border-color: var(--bdr-hi); background: var(--bg-3); transform: translateY(-2px); }
.pay-tile:active { transform: scale(.98); }
.pay-tile:focus-visible { outline: 2px solid var(--rose); outline-offset: 2px; }
.pay-tile.selected {
  border-color: var(--rose);
  background: var(--rose-fog);
  box-shadow: 0 0 0 1px var(--rose), 0 6px 20px rgba(224,82,82,.1);
}
.pay-tile.selected::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--rose), transparent);
}
.pay-icon {
  width: 46px; height: 46px; border-radius: 11px;
  display: grid; place-items: center; flex-shrink: 0;
}
.pp-bg   { background: #003087; }
.usdt-bg { background: #1a9970; }
.btc-bg  { background: #c17a0f; }
.pay-name {
  font-size: clamp(.72rem,2vw,.8rem); font-weight: 600;
  text-align: center; color: var(--text-3); transition: color .2s;
}
.pay-tile.selected .pay-name { color: var(--text); }
.pay-sub {
  font-size: .62rem; font-weight: 500;
  text-transform: uppercase; letter-spacing: .07em;
  color: var(--text-4); text-align: center;
}

/* ═══════════════════════════════════════════════════
   PAYMENT INSTRUCTIONS
═══════════════════════════════════════════════════ */
.pay-instr {
  margin-top: 4px; margin-bottom: 4px;
  background: var(--bg-3); border: 1px solid var(--bdr); border-radius: var(--r);
  padding: clamp(18px,4vw,26px); position: relative; overflow: hidden;
  animation: rise .3s var(--ease) both;
}
.pay-instr::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--rose-rim), transparent);
}
.instr-title {
  font-family: var(--serif); font-size: clamp(.95rem,3vw,1.02rem);
  font-weight: 600; color: var(--text); margin-bottom: 14px;
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
}
.instr-badge {
  font-family: var(--sans); font-size: .6rem; font-weight: 600;
  letter-spacing: .1em; text-transform: uppercase;
  background: var(--rose-dim); color: var(--rose);
  border: 1px solid var(--rose-rim); border-radius: 40px; padding: 3px 10px;
}
.instr-body { font-size: clamp(.8rem,2.2vw,.86rem); color: var(--text-2); line-height: 1.7; }
.instr-body p { margin-bottom: 10px; }
.instr-body strong { color: var(--text); font-weight: 600; }

/* Address box */
.address-box {
  background: var(--bg-4); border: 1px solid var(--bdr);
  border-radius: var(--r-s); padding: 14px 15px; margin: 12px 0;
}
.addr-label {
  font-size: .62rem; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--text-4); margin-bottom: 10px;
}
.addr-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.addr-value {
  font-family: var(--serif); font-size: clamp(.88rem,2.5vw,.97rem);
  font-weight: 600; color: var(--text); word-break: break-all; flex: 1;
}
.addr-mono {
  font-family: 'Courier New', Courier, monospace;
  font-size: clamp(.72rem,2vw,.82rem); font-weight: 500; letter-spacing: .02em;
}
.copy-btn {
  flex-shrink: 0; background: var(--bg-6); border: 1px solid var(--bdr);
  border-radius: 7px; padding: 8px 16px; color: var(--text-2);
  font-size: .7rem; font-weight: 600; letter-spacing: .07em; text-transform: uppercase;
  cursor: pointer; transition: all .2s; white-space: nowrap;
  min-height: 38px; min-width: 70px;
  -webkit-tap-highlight-color: transparent;
}
.copy-btn:hover  { background: var(--rose); color: #fff; border-color: transparent; box-shadow: 0 4px 12px rgba(224,82,82,.3); }
.copy-btn:active { transform: scale(.96); }
.copy-btn.copied { background: var(--ok); color: #fff; border-color: transparent; }

/* Instruction steps */
.instr-steps { list-style: none; margin-top: 14px; }
.instr-steps li {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: clamp(.78rem,2.2vw,.83rem); color: var(--text-2);
  padding: 8px 0; border-bottom: 1px solid var(--bdr-lo); line-height: 1.5;
}
.instr-steps li:last-child { border-bottom: none; }
.step-num {
  flex-shrink: 0; width: 22px; height: 22px; border-radius: 50%;
  background: var(--rose-dim); border: 1px solid var(--rose-rim);
  display: grid; place-items: center;
  font-size: .62rem; font-weight: 700; color: var(--rose); margin-top: 1px;
}

/* ═══════════════════════════════════════════════════
   TOAST
═══════════════════════════════════════════════════ */
.toast {
  position: fixed; bottom: 28px; left: 50%;
  transform: translateX(-50%) translateY(30px);
  background: var(--bg-2); border: 1px solid var(--bdr-hi); border-radius: 40px;
  padding: 10px 20px; font-size: .82rem; font-weight: 500; color: var(--text);
  display: flex; align-items: center; gap: 8px;
  box-shadow: 0 10px 36px rgba(0,0,0,.5); z-index: 998;
  transition: transform .4s var(--pop), opacity .4s;
  opacity: 0; white-space: nowrap; pointer-events: none;
  max-width: calc(100vw - 32px);
}
.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }

/* ═══════════════════════════════════════════════════
   CONFIRMATION
═══════════════════════════════════════════════════ */
.confirm-screen {
  text-align: center; padding: clamp(48px,8vw,88px) 16px;
  animation: rise .6s var(--ease) both;
}
.confirm-icon {
  width: 88px; height: 88px; border-radius: 50%;
  margin: 0 auto 28px;
  background: var(--ok-dim); border: 1.5px solid var(--ok-rim);
  display: grid; place-items: center; color: var(--ok);
  box-shadow: 0 0 50px rgba(52,211,153,.12);
  animation: pop .55s .1s var(--pop) both;
}
.confirm-screen h1 {
  font-family: var(--serif);
  font-size: clamp(1.8rem,5vw,2.5rem);
  font-weight: 600; letter-spacing: -.04em;
  color: var(--text); margin-bottom: 18px;
}
.confirm-screen p { font-size: clamp(.85rem,2.5vw,.9rem); color: var(--text-2); line-height: 1.75; max-width: 480px; margin: 0 auto 10px; }
.confirm-screen strong { color: var(--text); font-weight: 500; }
.confirm-note { color: var(--text-4) !important; font-size: .79rem !important; margin-top: 8px !important; }

.status-tracker {
  max-width: 400px; margin: 32px auto 0;
  background: var(--bg-2); border: 1px solid var(--bdr);
  border-radius: var(--r); overflow: hidden; text-align: left;
}
.status-row { display: flex; align-items: center; gap: 14px; padding: 14px 18px; border-bottom: 1px solid var(--bdr-lo); }
.status-row:last-child { border-bottom: none; }
.status-icon { width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; flex-shrink: 0; }
.s-ok      { background: var(--ok-dim);   border: 1px solid var(--ok-rim);   color: var(--ok);   }
.s-pending { background: var(--rose-dim); border: 1px solid var(--rose-rim); color: var(--rose); }
.s-wait    { background: var(--bg-3);     border: 1px solid var(--bdr);      color: var(--text-4); }
.status-text { font-size: .82rem; color: var(--text-2); line-height: 1.4; }
.status-text strong { color: var(--text); font-size: .86rem; font-weight: 500; display: block; margin-bottom: 2px; }
.status-text.dim, .status-text.dim strong { color: var(--text-4); }

/* ═══════════════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════════════ */
footer {
  position: relative; z-index: 1;
  border-top: 1px solid var(--bdr);
  padding: 24px clamp(16px,4vw,56px) 48px;
}
.footer-inner {
  max-width: 940px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 14px;
}
.footer-badges { display: flex; flex-wrap: wrap; gap: 16px; }
.badge { display: flex; align-items: center; gap: 7px; font-size: .73rem; font-weight: 500; color: var(--text-4); }
.footer-methods { display: flex; gap: 6px; flex-wrap: wrap; }
.method-pill {
  background: var(--bg-2); border: 1px solid var(--bdr); border-radius: 6px;
  padding: 5px 11px; font-size: .67rem; font-weight: 600; color: var(--text-4); letter-spacing: .04em;
}

/* ═══════════════════════════════════════════════════
   ANIMATIONS
═══════════════════════════════════════════════════ */
@keyframes rise { from{opacity:0;transform:translateY(14px)} to{opacity:1;transform:translateY(0)} }
@keyframes pop  { from{opacity:0;transform:scale(.4)}        to{opacity:1;transform:scale(1)} }

/* ═══════════════════════════════════════════════════
   RESPONSIVE — TABLET (≤ 768px)
═══════════════════════════════════════════════════ */
@media (max-width: 768px) {
  .form-grid { grid-template-columns: 1fr; gap: 14px; }
  .full-width { grid-column: 1; }
  .pay-grid { gap: 8px; }
  .pay-tile { padding: 14px 8px; gap: 8px; }
  .pay-icon { width: 40px; height: 40px; border-radius: 10px; }
  .pay-sub  { display: none; }
  .addr-row { flex-direction: column; align-items: flex-start; }
  .copy-btn { width: 100%; justify-content: center; }
  .ob-email { max-width: 160px; }
  .footer-inner { justify-content: center; text-align: center; }
  .footer-badges, .footer-methods { justify-content: center; }
}

/* ═══════════════════════════════════════════════════
   RESPONSIVE — MOBILE (≤ 480px)
═══════════════════════════════════════════════════ */
@media (max-width: 480px) {
  .hdr { height: 54px; }
  .hdr-right span:not(.pulse) { display: none; }
  .section-head h1 { font-size: 1.45rem; }
  .card { padding: 18px 16px; border-radius: 14px; }
  .card-label { font-size: .62rem; margin-bottom: 14px; }
  .field input, .field select, .field textarea { padding: 14px 13px; font-size: .9rem; }
  .pay-grid { grid-template-columns: 1fr; gap: 8px; }
  .pay-tile { flex-direction: row; padding: 13px 16px; gap: 14px; justify-content: flex-start; }
  .pay-icon { width: 40px; height: 40px; flex-shrink: 0; }
  .pay-name { font-size: .88rem; text-align: left; }
  .pay-sub  { display: none; }
  .pay-instr { padding: 16px 14px; }
  .order-bar { padding: 12px 14px; }
  .ob-avatar { width: 34px; height: 34px; font-size: .82rem; }
  .ob-name   { font-size: .84rem; }
  .ob-email  { font-size: .68rem; max-width: 130px; }
  .ob-plan   { font-size: .68rem; padding: 4px 11px; }
  .btn-primary { font-size: .85rem; padding: 15px 18px; }
  .confirm-icon { width: 74px; height: 74px; }
  .status-row   { padding: 12px 14px; }
}

/* ═══════════════════════════════════════════════════
   RESPONSIVE — SMALL MOBILE (≤ 360px)
═══════════════════════════════════════════════════ */
@media (max-width: 360px) {
  main, header { padding-left: 12px; padding-right: 12px; }
  .card  { padding: 16px 13px; }
  .addr-mono { font-size: .68rem; }
  .pay-tile  { padding: 12px 13px; }
}