:root {
  --bg: #f2f5ef;
  --card: #ffffff;
  --ink: #1f2720;
  --muted: #5f6a61;
  --primary: #0d6a4f;
  --primary-dark: #084a37;
  --accent: #d5ebdc;
  --danger: #b92a2a;
  --border: #d6e0d8;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background:
    radial-gradient(1200px 550px at 10% -20%, #dcefd9 0%, transparent 70%),
    radial-gradient(1000px 400px at 100% 0%, #f5e9c9 0%, transparent 65%),
    var(--bg);
  color: var(--ink);
  font-family: "Segoe UI", "Noto Sans", sans-serif;
}

.container {
  max-width: 1080px;
  margin: 28px auto;
  padding: 0 16px;
}

.hero {
  background: linear-gradient(130deg, #0d6a4f, #0f8c6a);
  color: #fff;
  padding: 20px;
  border-radius: 16px;
  box-shadow: 0 12px 28px rgba(13, 106, 79, 0.2);
}
.hero h1 {
  margin: 0;
  font-size: 30px;
}
.hero p { margin: 8px 0 0; opacity: 0.95; }

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
  margin-top: 16px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.05);
}

.col-5 { grid-column: span 5; }
.col-7 { grid-column: span 7; }
.col-12 { grid-column: span 12; }

h2 { margin: 0 0 12px; font-size: 20px; }
label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 4px;
}
input, textarea, select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 14px;
  background: #fff;
}
textarea { min-height: 82px; resize: vertical; }

.row {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 12px;
  margin-bottom: 10px;
}
.row > .span-4 { grid-column: span 4; }
.row > .span-6 { grid-column: span 6; }
.row > .span-8 { grid-column: span 8; }
.row > .span-12 { grid-column: span 12; }

.btn {
  border: none;
  border-radius: 10px;
  padding: 10px 14px;
  cursor: pointer;
  background: var(--primary);
  color: #fff;
  font-weight: 600;
}
.btn:hover { background: var(--primary-dark); }
.btn.secondary {
  background: #ebf3ef;
  color: #1d5c45;
}
.btn.danger { background: #be3a3a; }

.helper { font-size: 12px; color: var(--muted); }
.badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: #1d5c45;
  background: var(--accent);
  border-radius: 999px;
  padding: 4px 10px;
}

.entry {
  border: 1px solid var(--border);
  background: #fafcf9;
  border-radius: 12px;
  padding: 12px;
  margin-bottom: 12px;
}

.qr-stage {
  text-align: center;
}
#qrCanvas {
  display: inline-flex;
  justify-content: center;
  padding: 12px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid var(--border);
}

.link-box {
  margin-top: 10px;
  font-size: 13px;
  background: #f7fbf8;
  border: 1px dashed #9ec4ae;
  border-radius: 10px;
  padding: 10px;
  word-break: break-all;
}

.alert {
  margin-top: 8px;
  font-size: 13px;
  padding: 10px;
  border-radius: 10px;
}
.alert.error { background: #fde8e8; color: #8a2323; border: 1px solid #f5c3c3; }
.alert.ok { background: #e7f7ee; color: #1d6d48; border: 1px solid #b4dfc7; }

.toggle-inline {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
}
.small { font-size: 12px; color: var(--muted); }

.slot-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
}
.slot-grid label {
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 8px;
  text-align: center;
  padding: 6px;
  font-size: 12px;
  margin: 0;
}
.slot-grid input { width: auto; }

.action-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 12px;
}

@media (max-width: 920px) {
  .col-5, .col-7, .row > .span-4, .row > .span-6, .row > .span-8 { grid-column: span 12; }
}

/* Landing */
.mobile-wrap {
  max-width: 460px;
  margin: 20px auto;
}
.mobile-card {
  background: white;
  border-radius: 18px;
  border: 1px solid var(--border);
  box-shadow: 0 12px 26px rgba(9, 40, 26, 0.08);
  overflow: hidden;
}
.mobile-head {
  padding: 18px;
  background: linear-gradient(135deg, #0d6a4f, #178364);
  color: #fff;
}
.mobile-head h1 { margin: 0; font-size: 24px; }
.mobile-head p { margin: 6px 0 0; font-size: 14px; opacity: 0.92; }
.mobile-body { padding: 14px; }
.action-btn {
  width: 100%;
  margin-bottom: 10px;
  border: 0;
  border-radius: 12px;
  background: #f1f8f4;
  color: #134f3a;
  font-size: 15px;
  font-weight: 700;
  padding: 12px;
  text-align: left;
}
.action-btn.primary { background: #0f7f5e; color: #fff; }
.payment-box {
  background: #fafcf9;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  margin-top: 8px;
}
.qr-image {
  max-width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-top: 8px;
}
.copy-chip {
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 8px;
  padding: 7px 10px;
  cursor: pointer;
  font-size: 12px;
}