:root{
  --bg: #f7f8fa;
  --card: #ffffff;
  --muted: #7b8794;
  --accent: #3563f7;
  --accent-2: #00bfa6;
  --danger: #e64b4b;
  --glass: rgba(53,99,247,0.06);
  --radius: 14px;
  --shadow-1: 0 6px 18px rgba(45,55,66,0.06);
  --shadow-2: 0 10px 30px rgba(20,30,50,0.06);
  font-family: 'Poppins', system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  color-scheme: light;
}

* { box-sizing: border-box; }
html,body { height:100%; margin:0; background:var(--bg); -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale; }

.app {
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:28px;
}

.card{
  width:100%;
  max-width:860px;
  background:var(--card);
  border-radius:var(--radius);
  box-shadow: var(--shadow-1), var(--shadow-2);
  padding:26px;
  display:flex;
  flex-direction:column;
  gap:18px;
}

.card__header { margin-bottom:2px; }
.title { margin:0; font-size:20px; font-weight:600; color:#111827; }
.subtitle { margin:6px 0 0 0; font-size:13px; color:var(--muted); }

.form { display:flex; flex-direction:column; gap:14px; }
.field { display:flex; flex-direction:column; gap:8px; }
.field__label { font-size:12px; color:var(--muted); }

.input {
  background: transparent;
  border:1px solid rgba(16,24,40,0.06);
  padding:12px 14px;
  border-radius:10px;
  font-size:15px;
  color:#0b1320;
  outline:none;
  transition: box-shadow .22s ease, border-color .18s ease, transform .12s ease;
  box-shadow: 0 1px 0 rgba(11,19,32,0.02);
}
.input::placeholder { color:#a1a7b3; }
.input:focus {
  border-color: var(--accent);
  box-shadow: 0 6px 18px rgba(53,99,247,0.08);
  transform: translateY(-1px);
}

.input--textarea { min-height:110px; resize:vertical; }

.row { display:flex; gap:12px; align-items:flex-end; flex-wrap:wrap; }
.field--small { flex:1 1 220px; min-width:180px; }
.actions { display:flex; gap:10px; flex:1 1 300px; justify-content:flex-end; }

.btn {
  border:1px solid rgba(16,24,40,0.06);
  background:transparent;
  padding:10px 14px;
  border-radius:10px;
  font-weight:600;
  cursor:pointer;
  transition: transform .12s ease, box-shadow .12s ease, background-color .12s ease;
  box-shadow: 0 4px 10px rgba(11,19,32,0.03);
}
.btn:hover { transform: translateY(-3px); }
.btn:active { transform: translateY(-1px); }

.btn--primary {
  background: linear-gradient(90deg, var(--accent), #5b7dff);
  color: white;
  border: none;
  box-shadow: 0 8px 24px rgba(53,99,247,0.12);
}
.btn--primary:hover { box-shadow: 0 14px 40px rgba(53,99,247,0.14); }

.icon-btn {
  background: transparent;
  border: 1px solid rgba(16,24,40,0.06);
  padding:6px 10px;
  border-radius:8px;
  font-weight:600;
  cursor:pointer;
  margin-left:8px;
}
.icon-btn:hover { transform: translateY(-3px); }

.warning {
  min-height:20px;
  color: var(--danger);
  font-size:13px;
  opacity:0;
  transform: translateY(-6px);
  transition: opacity .18s ease, transform .18s ease;
}
.warning.show { opacity:1; transform: translateY(0); }

.result {
  margin-top:6px;
  border-radius:12px;
  border:1px solid rgba(16,24,40,0.04);
  background: linear-gradient(180deg, rgba(245,247,250,0.8), rgba(255,255,255,0.9));
  padding:12px;
  box-shadow: 0 6px 18px rgba(10,15,25,0.03);
  opacity:0;
  transform: translateY(10px) scale(.995);
  transition: opacity .22s cubic-bezier(.2,.9,.2,1), transform .22s cubic-bezier(.2,.9,.2,1);
  pointer-events: none;
}
.result[aria-hidden="false"] { opacity:1; transform: translateY(0) scale(1); pointer-events:auto; }

.result__meta { display:flex; align-items:center; justify-content:space-between; gap:8px; margin-bottom:8px; }
.result__label { color:var(--muted); font-size:13px; font-weight:600; }
/* result text */
.result__text {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, "Roboto Mono", monospace;
  white-space:pre-wrap;
  word-break:break-word;
  font-size:14px;
  margin:0;
  padding:12px;
  border-radius:8px;
  background: rgba(10,15,25,0.02);
  border:1px dashed rgba(16,24,40,0.04);
  max-height:320px;
  overflow:auto;
}

.card__footer { color:var(--muted); font-size:12px; }

@media (max-width:640px){
  .card { padding:18px; border-radius:12px; }
  .actions { justify-content:stretch; gap:8px; }
  .btn { flex:1 1 auto; }
  .row { align-items:flex-start; }
}

.input:focus, .btn:focus, .icon-btn:focus, .result__text:focus {
  outline: 3px solid rgba(53,99,247,0.12);
  outline-offset: 3px;
}

@keyframes shake {
  0% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
  100% { transform: translateX(0); }
}
.warning.shake { animation: shake .42s cubic-bezier(.36,.07,.19,.97); }

.qr-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, opacity 0.4s ease;
}

.qr-container.show {
  max-height: 500px;
  opacity: 1;
}

#qrCode canvas {
  border-radius: 8px;
  box-shadow: 0 6px 14px rgba(0,0,0,0.08);
}
.card__header {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo {
  width: 40px;
  height: auto;
  user-select: none;

}