:root {
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --bg: #0f172a;
  --accent: #f97316;
  --muted: #475569;
  --border: #e2e8f0;
  --card: #0f172a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: linear-gradient(180deg, #192135ff 0%, #192f54ff 60%, #f8fafc 100%);
  min-height: 100vh;
  color: #0f172a;
}

.container { width: min(1080px, 94vw); margin: 0 auto; }

.card {
  background: rgba(15, 23, 42, 0.9);
  color: #e2e8f0;
  border-radius: 20px;
  padding: 28px;
  border: 1px solid rgba(148, 163, 184, 0.25);
  box-shadow: 0 24px 50px rgba(15, 23, 42, 0.35);
  margin-bottom: 24px;
}

label { display: grid; gap: 6px; font-weight: 600; font-size: 14px; color: rgba(226,232,240,0.8); }

input, select, textarea { font: inherit; }
input[type="text"], input[type="number"], input[type="email"], input[type="time"], input[type="date"], select, textarea {
  width: 100%;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid rgba(148, 163, 184, 0.35);
  background: rgba(15, 23, 42, 0.7);
  color: #f8fafc;
}
input::placeholder, textarea::placeholder { color: rgba(148,163,184,0.6); }

.actions { display: flex; gap: 12px; flex-wrap: wrap; }

.btn, .btn-primary, .btn-secondary, .btn.success, .btn.danger, .btn-secondary {
  padding: 12px 18px; border-radius: 12px; border: none; cursor: pointer; font-weight: 600; transition: transform 0.2s ease;
}
.btn, .btn-primary { background: var(--accent); color: #fff; }
.btn-secondary { background: rgba(248,250,252,0.12); color: #e2e8f0; border: 1px solid rgba(148,163,184,0.25); }
.btn.success { background: #10b981; color: #fff; } /* Fixed text color for better contrast */
.btn.danger { background: #ef4444; color: #fff; }
.btn:hover, .btn-primary:hover, .btn-secondary:hover, .btn.success:hover, .btn.danger:hover { transform: translateY(-2px); }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

table { width: 100%; border-collapse: collapse; }
th, td { border-bottom: 1px solid rgba(148, 163, 184, 0.25); padding: 10px; }
thead th { color: rgba(226,232,240,0.85); font-size: 13px; text-transform: uppercase; letter-spacing: 0.04em; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* Utility */
.hidden { display: none; }

@media (max-width: 600px) {
  .grid { grid-template-columns: 1fr; }
  .flex { flex-direction: column; }
  .side { margin-top: 16px; }
}