:root {
  --bg: #07090a;
  --bg-soft: #0d1113;
  --line: #1b2422;
  --green: #4ade80;
  --green-dim: #16a34a;
  --green-glow: rgba(74, 222, 128, 0.14);
  --text: #e6edf3;
  --muted: #7d8b87;
  --radius: 14px;
  --mono: "JetBrains Mono", "Cascadia Code", ui-monospace, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  min-height: 100vh;
  letter-spacing: -0.01em;
}

.grid-bg {
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background-image:
    linear-gradient(rgba(74,222,128,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(74,222,128,.045) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 100%);
}

.topbar {
  position: relative; z-index: 1;
  display: flex; justify-content: space-between; align-items: center;
  padding: 20px 32px;
  border-bottom: 1px solid var(--line);
  background: rgba(7,9,10,.8);
  backdrop-filter: blur(12px);
}

.brand { display: flex; gap: 14px; align-items: center; }
.logo {
  font-size: 26px; color: var(--green);
  text-shadow: 0 0 18px var(--green-glow);
}
.brand h1 {
  font-size: 20px; font-weight: 700; letter-spacing: .16em;
  background: linear-gradient(92deg, #fff 20%, var(--green));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.brand p { font-size: 12px; color: var(--muted); }

.status {
  font-family: var(--mono); font-size: 12px; color: var(--green);
  padding: 6px 12px; border: 1px solid var(--green-dim); border-radius: 999px;
  background: rgba(22,163,74,.08);
}

main {
  position: relative; z-index: 1;
  max-width: 1080px; margin: 0 auto; padding: 32px;
  display: grid; gap: 22px;
  grid-template-columns: repeat(auto-fit, minmax(330px, 1fr));
}
#resultCard { grid-row: span 1; }
#resultCard, .card:last-child { grid-column: 1 / -1; }

.card {
  background: linear-gradient(180deg, var(--bg-soft), #090c0d);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: 0 0 0 1px rgba(74,222,128,.04), 0 20px 40px -24px rgba(0,0,0,.9);
}

.card h2 {
  font-size: 13px; text-transform: uppercase; letter-spacing: .14em;
  color: var(--green); margin-bottom: 16px;
}

label { display: block; font-size: 12px; color: var(--muted); margin: 12px 0 6px; }
input {
  width: 100%; padding: 11px 13px;
  background: #0a0e0f; color: var(--text);
  border: 1px solid var(--line); border-radius: 10px;
  font-family: var(--mono); font-size: 14px; outline: none;
  transition: border-color .15s, box-shadow .15s;
}
input:focus { border-color: var(--green-dim); box-shadow: 0 0 0 3px var(--green-glow); }

button {
  margin-top: 18px; width: 100%;
  padding: 12px; border: 0; border-radius: 10px;
  background: linear-gradient(180deg, var(--green), var(--green-dim));
  color: #04120a; font-weight: 700; font-size: 14px; cursor: pointer;
  transition: transform .1s, filter .15s;
}
button:hover { filter: brightness(1.08); }
button:active { transform: translateY(1px); }
button.ghost {
  background: transparent; color: var(--green);
  border: 1px solid var(--green-dim);
}

.qrwrap {
  display: flex; justify-content: center; padding: 18px;
  background: #fff; border-radius: 12px;
}
.qrwrap img { width: 260px; height: 260px; image-rendering: pixelated; }

pre {
  background: #0a0e0f; border: 1px solid var(--line); border-radius: 10px;
  padding: 12px; overflow-x: auto; font-family: var(--mono);
  font-size: 11px; color: var(--green); word-break: break-all;
}
.muted { color: var(--muted); font-size: 12px; margin-top: 12px; }

table { width: 100%; border-collapse: collapse; font-family: var(--mono); font-size: 12px; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 500; text-transform: uppercase; font-size: 10px; letter-spacing: .1em; }
td.status-PAID { color: var(--green); }
td.status-PENDING { color: #fbbf24; }
td.status-FAILED { color: #f87171; }