/* Dark, minimal, modern */
:root {
  --bg: #0f1115;
  --bgElev: #151822;
  --text: #e6e8ef;
  --muted: #9aa3b2;
  --primary: #6ea8fe;
  --success: #63e6be;
  --danger: #ff6b6b;
  --warning: #ffd43b;
  --border: #262a36;
  --shadow: 0 8px 30px rgba(0,0,0,.35);
  --radius: 14px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font: 15px/1.45 system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, "Helvetica Neue", Arial;
  color: var(--text);
  background: radial-gradient(1200px 800px at 10% -10%, #182033, transparent 60%),
              radial-gradient(1000px 600px at 100% 0%, #161b29, transparent 60%),
              var(--bg);
}

.container {
  width: min(1100px, 92vw);
  margin: 24px auto 56px;
  display: grid;
  gap: 16px;
}

.topbar {
  position: sticky; top: 0;
  display: flex; align-items: center;
  gap: 12px; padding: 12px 20px;
  background: rgba(15,17,21,.6);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  z-index: 10;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand .logo { font-size: 22px; }
.brand h1 { font-size: 18px; margin: 0; font-weight: 600; letter-spacing: .3px; }
.spacer { flex: 1; }

.card {
  background: linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.00));
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
  padding: 18px;
}

.row { display: flex; gap: 12px; align-items: center; }
.row h2 { margin: 0; }
.row input { margin-left: auto; width: 280px; }

.form { display: grid; gap: 10px; }
.grid2 { grid-template-columns: 1fr 1fr; }
.grid3 { grid-template-columns: 1fr 120px 1fr; }
.form label { display: grid; gap: 6px; font-size: 13px; color: var(--muted); }
.form input {
  padding: 10px 12px; border-radius: 12px; border: 1px solid var(--border); background: #0f1218; color: var(--text);
}
.form button.full { grid-column: 1 / -1; margin-top: 8px; }

.btn {
  border: 1px solid var(--border);
  padding: 9px 14px; border-radius: 12px; cursor: pointer;
  background: #111520; color: var(--text);
  transition: transform .06s ease, background .2s ease, border-color .2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0px) scale(.98); }
.btn.primary { border-color: #2b3a55; }
.btn.success { border-color: #224d3a; }
.btn.subtle { background: transparent; }
.btn.icon { padding: 8px 10px; display: inline-flex; align-items: center; gap: 8px; }

.footer {
  position: fixed; bottom: 0; left: 0; right: 0;
  padding: 8px 16px; border-top: 1px solid var(--border);
  background: rgba(15,17,21,.6); backdrop-filter: blur(8px);
  display: flex; justify-content: center;
}

h2, h3 { margin-top: 0; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.error { color: var(--danger); margin: 4px 0 0; }

.list { display: grid; gap: 8px; margin-top: 10px; }
.item {
  display: grid;
  grid-template-columns: 1fr 120px 1fr auto;
  gap: 10px; align-items: center;
  padding: 10px; border: 1px solid var(--border); border-radius: 12px;
  background: #0f1218;
}
.item .name { font-weight: 600; }
.item .qty { justify-self: center; padding: 4px 8px; border-radius: 10px; background: #101525; border: 1px solid #273149; }
.item .note { color: var(--muted); font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.item .actions { display: inline-flex; align-items: center; gap: 8px; justify-self: end; }
.item .actions input {
  width: 72px; padding: 8px; border-radius: 10px; border: 1px solid var(--border); background: #0f1218; color: var(--text);
}
/* responsive */
@media (max-width: 720px) {
  .grid2, .grid3 { grid-template-columns: 1fr; }
  .item { grid-template-columns: 1fr; }
  .row input { width: 170px; }
}