:root {
  color-scheme: light;
  --bg: #f4f7ff;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --line: #e5e7eb;
  --brand: #0b5cff;
  --danger: #dc2626;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.app-header {
  padding: 1rem;
  background: linear-gradient(135deg, #0b5cff, #4182ff);
  color: white;
}

.app-header h1 {
  margin: 0;
  font-size: 1.2rem;
}

.app-header p {
  margin: 0.4rem 0 0;
  opacity: 0.95;
  font-size: 0.92rem;
}

.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 1rem;
  display: grid;
  gap: 1rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem;
}

.card h2 {
  margin-top: 0;
  font-size: 1rem;
}

.form-grid {
  display: grid;
  gap: 0.75rem;
}

.gps-status {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
}

label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.9rem;
}

input,
select,
button {
  font: inherit;
}

input,
select {
  padding: 0.62rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  width: 100%;
}

button {
  border: 0;
  border-radius: 8px;
  padding: 0.65rem 0.9rem;
  background: var(--brand);
  color: white;
  font-weight: 600;
  cursor: pointer;
}

button:active {
  transform: translateY(1px);
}

button.danger {
  background: var(--danger);
}

.filters {
  display: flex;
  gap: 0.6rem;
  align-items: end;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

th,
td {
  text-align: left;
  border-bottom: 1px solid var(--line);
  padding: 0.55rem;
}

.empty {
  text-align: center;
  color: var(--muted);
  padding: 1rem;
}

@media (min-width: 640px) {
  .form-grid {
    grid-template-columns: repeat(3, 1fr);
    align-items: end;
  }

  .form-grid button {
    grid-column: 1 / -1;
    width: fit-content;
  }
}