/* UniStamps — UI aligned to "A Sweet Message" (card-centered, calm hierarchy) */

:root{
  --bg: #ffffff;
  --card: #ffffff;
  --ink: #101010;
  --muted: rgba(16,16,16,.62);
  --hair: rgba(16,16,16,.12);

  --shadow: 0 12px 45px rgba(0,0,0,.08);
  --radius: 22px;

  --btn: rgba(16,16,16,.06);
  --btnHover: rgba(16,16,16,.09);
  --btnText: #101010;

  --primaryBg: #101010;
  --primaryText: #ffffff;

  --dangerBg: rgba(220,40,40,.10);
  --dangerText: #a51616;

  --stampFill: rgba(16,16,16,.12);
  --stampOn: #101010;

  --focus: rgba(42,172,226,.35); /* UniCookies blue vibe */
}

*{ box-sizing: border-box; }
html, body { height: 100%; }

body{
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

.wrap{
  min-height: 100%;
  display: grid;
  place-items: center;
  padding: 28px 16px 40px;
}

.card{
  width: min(760px, 100%);
  background: var(--card);
  border: 1px solid rgba(0,0,0,.06);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px 18px 18px;
}

.header{
  display: grid;
  place-items: center;
  gap: 10px;
  padding: 6px 6px 14px;
  text-align: center;
}

.logo{
  max-width: 240px;
  width: 56%;
  height: auto;
  display: block;
  margin: 2px auto 0;
}

.eyebrow{
  letter-spacing: .18em;
  font-size: 11px;
  font-weight: 700;
  color: rgba(16,16,16,.50);
}

.headline{
  margin: 0;
  font-size: clamp(22px, 3.6vw, 34px);
  line-height: 1.15;
  font-weight: 800;
}

.subhead{
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.35;
}

.screen{ padding: 10px 6px 6px; }
.hidden{ display: none !important; }

.panel{
  display: grid;
  gap: 14px;
  align-items: center;
  justify-items: center;
  padding: 10px 6px 6px;
}

/* Field */
.field{
  width: min(520px, 100%);
  display: grid;
  gap: 8px;
  text-align: left;
}
.label{
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: rgba(16,16,16,.52);
  font-weight: 700;
}
input{
  width: 100%;
  font-size: 16px;
  padding: 14px 14px;
  border-radius: 14px;
  border: 1px solid rgba(0,0,0,.12);
  outline: none;
  transition: box-shadow .15s ease, border-color .15s ease;
}
input:focus{
  border-color: rgba(42,172,226,.55);
  box-shadow: 0 0 0 6px var(--focus);
}

/* Buttons */
.btn{
  border: 1px solid rgba(0,0,0,.08);
  background: var(--btn);
  color: var(--btnText);
  border-radius: 14px;
  padding: 12px 14px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: transform .06s ease, background .15s ease, border-color .15s ease;
}
.btn:hover{ background: var(--btnHover); }
.btn:active{ transform: translateY(1px); }
.btn:disabled{
  opacity: .55;
  cursor: not-allowed;
}

.btnPrimary{
  width: min(520px, 100%);
  background: var(--primaryBg);
  color: var(--primaryText);
  border-color: rgba(0,0,0,.1);
}
.btnPrimary:hover{ background: #0b0b0b; }

.btnSecondary{
  min-width: 160px;
}

.btnGhost{
  background: transparent;
  border-color: rgba(0,0,0,.10);
  padding: 10px 12px;
}
.btnGhost:hover{ background: rgba(0,0,0,.04); }

.btnGhostWide{
  width: min(520px, 100%);
  background: transparent;
  border-color: rgba(0,0,0,.10);
  padding: 12px 14px;
}

.btnDanger{
  background: var(--dangerBg);
  color: var(--dangerText);
  border-color: rgba(220,40,40,.20);
}
.btnDanger:hover{ background: rgba(220,40,40,.14); }

/* Micro text */
.micro{
  width: min(520px, 100%);
  margin: 0;
  color: rgba(16,16,16,.56);
  font-size: 12px;
  line-height: 1.45;
  text-align: center;
}

/* Wallet */
.topline{
  width: min(520px, 100%);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.badge{
  padding: 8px 10px;
  border-radius: 999px;
  background: rgba(0,0,0,.04);
  border: 1px solid rgba(0,0,0,.08);
  color: rgba(16,16,16,.78);
  font-size: 13px;
  font-weight: 700;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 72%;
}

.walletLine{
  margin: 4px 0 0;
  font-weight: 800;
  font-size: 16px;
  color: rgba(16,16,16,.88);
}

.stampGrid{
  width: min(520px, 100%);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 2px;
}

.stamp{
  height: 56px;
  border-radius: 16px;
  border: 1px solid rgba(0,0,0,.10);
  background: rgba(0,0,0,.03);
  position: relative;
  overflow: hidden;
}

.stamp.on{
  background: rgba(16,16,16,.10);
  border-color: rgba(16,16,16,.18);
}

.stamp.on::after{
  content: "✓";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-size: 20px;
  font-weight: 900;
  color: var(--stampOn);
}

.progressRow{
  width: min(520px, 100%);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.progressText{
  font-size: 13px;
  color: rgba(16,16,16,.72);
  font-weight: 800;
}

.lockText{
  font-size: 12px;
  color: rgba(16,16,16,.50);
}

/* Divider + Tip */
.divider{
  width: min(520px, 100%);
  height: 1px;
  background: rgba(0,0,0,.10);
  margin-top: 6px;
}
.tip{
  width: min(520px, 100%);
  font-size: 12px;
  color: rgba(16,16,16,.58);
  text-align: center;
  line-height: 1.35;
}

/* Actions */
.actions{
  width: min(520px, 100%);
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Claim screen */
.claimTop{
  width: min(520px, 100%);
  text-align: center;
  display: grid;
  gap: 10px;
  margin-bottom: 6px;
}

.claimBadge{
  display: inline-block;
  margin: 0 auto;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(0,0,0,.04);
  border: 1px solid rgba(0,0,0,.08);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .12em;
  color: rgba(16,16,16,.62);
}

.claimTitle{
  margin: 0;
  font-size: 22px;
  font-weight: 900;
}

.claimBody{
  margin: 0;
  color: rgba(16,16,16,.70);
  font-size: 14px;
  line-height: 1.45;
  white-space: pre-line;
}

.claimMeta{
  margin: 0;
  color: rgba(16,16,16,.52);
  font-size: 12px;
  line-height: 1.35;
  white-space: pre-line;
}

.claimButtons{
  width: min(520px, 100%);
  display: grid;
  gap: 10px;
}

/* Modal */
.modal{
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.34);
  display: grid;
  place-items: center;
  padding: 18px;
  z-index: 999;
}

.modalCard{
  width: min(420px, 100%);
  background: #fff;
  border-radius: 18px;
  border: 1px solid rgba(0,0,0,.08);
  box-shadow: 0 20px 60px rgba(0,0,0,.20);
  padding: 16px;
  display: grid;
  gap: 10px;
  text-align: center;
}

.modalTitle{
  font-weight: 900;
  font-size: 16px;
}
.modalSub{
  font-size: 12px;
  color: rgba(16,16,16,.60);
  margin-top: -4px;
}

.pin{
  font-size: 18px;
  text-align: center;
  letter-spacing: .35em;
  padding: 14px 12px;
}

.modalRow{
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}

.error{
  font-size: 12px;
  color: #a51616;
  font-weight: 800;
}

/* Toast */
.toast{
  position: fixed;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  background: rgba(16,16,16,.92);
  color: #fff;
  padding: 10px 12px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 800;
  opacity: 0;
  pointer-events: none;
  transition: opacity .18s ease, transform .18s ease;
  z-index: 1000;
}
.toast.show{
  opacity: 1;
  transform: translateX(-50%) translateY(-2px);
}

/* Small screens */
@media (max-width: 420px){
  .badge{ max-width: 62%; }
  .stamp{ height: 52px; }
}