:root {
  --bg: #080c14;
  --card-bg: rgba(10, 16, 30, 0.88);
  --blue: #00b4ff;
  --yellow: #ffd600;
  --text: #e6f7ff;
  --muted: #7c8fa3;
  --border: rgba(0, 180, 255, 0.25);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; min-height: 100vh; background: var(--bg); color: var(--text); font-family: 'Segoe UI', system-ui, sans-serif; overflow-x: hidden; }
.bg-grid {
  position: fixed; inset: 0;
  background-image:
    linear-gradient(rgba(0, 180, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 180, 255, 0.06) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none; z-index: 0;
}
.scanline {
  position: fixed; inset: 0;
  background: linear-gradient(transparent 0%, rgba(0, 180, 255, 0.04) 50%, transparent 100%);
  animation: scan 6s linear infinite;
  pointer-events: none; z-index: 0;
}
@keyframes scan { 0% { transform: translateY(-100%); } 100% { transform: translateY(100%); } }
.container { position: relative; z-index: 1; max-width: 780px; margin: 0 auto; padding: 48px 20px 32px; }
header { text-align: center; margin-bottom: 40px; }
.logo { display: inline-flex; align-items: center; gap: 12px; margin-bottom: 8px; }
.logo-icon { font-size: 36px; filter: drop-shadow(0 0 10px var(--yellow)); }
.logo-text {
  font-size: 32px; font-weight: 800; letter-spacing: 6px;
  background: linear-gradient(90deg, var(--blue), var(--yellow));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.subtitle { color: var(--muted); font-size: 14px; letter-spacing: 2px; text-transform: uppercase; }
.card {
  background: var(--card-bg); border: 1px solid var(--border); border-radius: 14px;
  padding: 28px; backdrop-filter: blur(12px); box-shadow: 0 0 40px rgba(0, 180, 255, 0.08);
}
.card-header { margin-bottom: 18px; border-bottom: 1px solid var(--border); padding-bottom: 14px; }
.card-header h2 { margin: 0; font-size: 22px; color: var(--yellow); text-shadow: 0 0 12px rgba(255, 214, 0, 0.3); }
.field-group { margin-bottom: 18px; }
.field-group label {
  display: block; font-size: 12px; letter-spacing: 1.5px;
  text-transform: uppercase; color: var(--blue); margin-bottom: 6px;
}
.field-group input, .field-group select {
  width: 100%; padding: 11px 14px; border-radius: 8px;
  border: 1px solid var(--border); background: rgba(0, 180, 255, 0.04);
  color: var(--text); font-size: 15px; outline: none; transition: .2s;
}
.field-group input:focus, .field-group select:focus { border-color: var(--yellow); box-shadow: 0 0 0 3px rgba(255, 214, 0, 0.08); }
.field-group small { display: block; margin-top: 6px; color: var(--muted); font-size: 12px; }
kbd { background: rgba(0, 180, 255, 0.1); border: 1px solid var(--border); border-radius: 4px; padding: 1px 6px; font-size: 11px; }
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 24px; border-radius: 8px; border: none; cursor: pointer;
  font-weight: 700; letter-spacing: 1px; text-transform: uppercase; margin-top: 6px;
  background: linear-gradient(90deg, var(--blue), #0090cc); color: #001220; transition: .2s;
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(0, 180, 255, 0.35); }
.btn-secondary {
  display: inline-block; margin-top: 8px; padding: 8px 14px;
  border-radius: 8px; border: 1px solid var(--yellow);
  background: rgba(255, 214, 0, 0.08); color: var(--yellow);
  cursor: pointer; font-weight: 600; font-size: 13px; letter-spacing: .5px;
}
.result {
  margin-top: 18px; padding: 16px; border-radius: 10px;
  font-family: ui-monospace, monospace; font-size: 13px;
  white-space: pre-wrap; max-height: 320px; overflow: auto;
}
.result.ok { background: rgba(0, 255, 140, 0.06); border: 1px solid rgba(0, 255, 140, 0.25); }
.result.error { background: rgba(255, 60, 60, 0.06); border: 1px solid rgba(255, 60, 60, 0.25); }
footer { text-align: center; margin-top: 28px; color: var(--muted); font-size: 12px; letter-spacing: 1.5px; }
a { color: var(--yellow); }