:root {
  --bg: #0f172a;
  --surface: #1e293b;
  --border: #334155;
  --text: #f8fafc;
  --text-muted: #94a3b8;
  --accent: #38bdf8;
  --accent-hover: #0284c7;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
  background-color: var(--bg);
  color: var(--text);
  padding: 2.5rem 1rem;
}

.container {
  max-width: 980px;
  margin: 0 auto;
}

header {
  text-align: center;
  margin-bottom: 2rem;
}

header h1 {
  color: var(--accent);
  font-size: 2.2rem;
  margin-bottom: 0.3rem;
}

header p {
  color: var(--text-muted);
  font-size: 1rem;
}

.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .grid {
    grid-template-columns: 1fr 1fr;
  }
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.5rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.2);
}

.card h2 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.6rem;
  color: var(--text);
}

form {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  margin-bottom: 1.5rem;
}

label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
}

input, select {
  background: #0b1120;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.6rem 0.8rem;
  border-radius: 6px;
  font-size: 0.95rem;
}

input:focus, select:focus {
  outline: 2px solid var(--accent);
  border-color: transparent;
}

.input-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

button {
  background: var(--accent);
  color: #0f172a;
  border: none;
  padding: 0.75rem;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  margin-top: 0.4rem;
  transition: background 0.2s ease;
}

button:hover {
  background: var(--accent-hover);
  color: #fff;
}

.list-container {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.item-row {
  background: #0b1120;
  border: 1px solid var(--border);
  padding: 0.85rem;
  border-radius: 6px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.badge {
  padding: 0.25rem 0.55rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: bold;
}

.badge-success { background: rgba(34, 197, 94, 0.2); color: var(--success); }
.badge-danger { background: rgba(239, 68, 68, 0.2); color: var(--danger); }

.delete-btn {
  background: transparent;
  color: var(--danger);
  padding: 0.25rem 0.6rem;
  border: 1px solid var(--danger);
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.75rem;
}

.delete-btn:hover {
  background: var(--danger);
  color: #fff;
}