/* Minimal, clean defaults */
:root {
  --bg: #0b1220;
  --card: #0f172a;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --border: #1f2937;
  --accent: #60a5fa;
  --accent2: #34d399;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  background: radial-gradient(1200px 800px at 20% 0%, #0f1b33 0%, var(--bg) 60%);
  color: var(--text);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  background: rgba(11, 18, 32, 0.75);
}

.brand { display: flex; gap: 12px; align-items: center; }
.logo {
  width: 36px; height: 36px;
  display: grid; place-items: center;
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--accent);
}
.title { font-weight: 700; letter-spacing: 0.2px; }
.subtitle { font-size: 12px; color: var(--muted); margin-top: 2px; }

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 18px;
  display: grid;
  gap: 16px;
}

.card {
  border: 1px solid var(--border);
  background: rgba(15, 23, 42, 0.9);
  border-radius: 16px;
  padding: 16px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.25);
}

h1 { margin: 0 0 8px; font-size: 20px; }
h2 { margin: 0 0 8px; font-size: 18px; }
p { margin: 8px 0; line-height: 1.45; }
.muted { color: var(--muted); }
.small { font-size: 12px; }

.row { display: flex; gap: 10px; align-items: center; margin-top: 10px; flex-wrap: wrap; }
input[type="file"] {
  border: 1px dashed var(--border);
  border-radius: 12px;
  padding: 10px;
  background: #0b1220;
  color: var(--text);
  min-width: 280px;
}

.btn {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 12px;
  background: linear-gradient(180deg, #1f2937, #111827);
  color: var(--text);
  cursor: pointer;
}
.btn:hover { border-color: #334155; }
.btn.secondary {
  background: transparent;
}

.status {
  margin-top: 12px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #0b1220;
  font-size: 13px;
}

.details {
  margin-top: 10px;
  border-top: 1px solid var(--border);
  padding-top: 10px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}
@media (max-width: 820px) {
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
.kpi {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px;
  background: rgba(2, 6, 23, 0.55);
}
.kpi-label { color: var(--muted); font-size: 12px; }
.kpi-value { font-size: 22px; font-weight: 700; margin-top: 6px; }

.footer {
  padding: 18px;
  text-align: center;
  color: var(--muted);
}