:root {
  --bg: #f4f6f8;
  --card-bg: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #e5e7eb;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --danger: #dc2626;
  --danger-dark: #b91c1c;
  --dose-color: #93c5fd;
  --focus-color: #16a34a;
  --weight-color: #ea580c;
  --highlight-bg: #fff7ed;
  --highlight-border: #fdba74;
}

* { box-sizing: border-box; }

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

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 16px 24px;
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
}

.topbar h1 { font-size: 1.3rem; margin: 0; }

.topbar-actions { display: flex; gap: 8px; flex-wrap: wrap; }

main {
  max-width: 1100px;
  margin: 24px auto;
  padding: 0 16px 60px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}

.card h2 { margin-top: 0; font-size: 1.1rem; }

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
  margin-bottom: 14px;
}

label {
  display: flex;
  flex-direction: column;
  font-size: 0.85rem;
  color: var(--muted);
  gap: 4px;
}

label.full { margin-bottom: 14px; }

input, textarea, select {
  font-family: inherit;
  font-size: 0.95rem;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  background: #fff;
}

input:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.highlight-field {
  background: var(--highlight-bg);
  border: 1px solid var(--highlight-border);
  border-radius: 8px;
  padding: 8px;
}

.form-actions { display: flex; gap: 10px; align-items: center; }

.hint { font-size: 0.8rem; color: var(--muted); margin: 10px 0 0; }

button, .btn-secondary, .btn-primary, .btn-danger {
  cursor: pointer;
  border: none;
  border-radius: 8px;
  padding: 9px 14px;
  font-size: 0.9rem;
  font-weight: 500;
}

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }

.btn-secondary {
  background: #fff;
  color: var(--text);
  border: 1px solid var(--border);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}
.btn-secondary:hover { background: #f3f4f6; }

.file-btn { position: relative; }

.btn-danger { background: #fff; color: var(--danger); border: 1px solid var(--danger); }
.btn-danger:hover { background: var(--danger); color: #fff; }

.legend { display: flex; gap: 16px; flex-wrap: wrap; font-size: 0.8rem; color: var(--muted); }
.legend-item { display: flex; align-items: center; gap: 6px; }
.legend-swatch { width: 12px; height: 12px; border-radius: 3px; display: inline-block; }

#chartWrap { width: 100%; overflow-x: auto; }
#chart { display: block; font-family: inherit; }

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

table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { color: var(--muted); font-weight: 600; }
td.wrap { white-space: normal; max-width: 220px; }
tr:hover td { background: #fafafa; }

.row-actions { display: flex; gap: 6px; }
.icon-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  padding: 2px 6px;
  border-radius: 6px;
}
.icon-btn:hover { background: #eee; }

.empty-state { color: var(--muted); font-style: italic; padding: 12px 0; }

.foot {
  text-align: center;
  color: var(--muted);
  font-size: 0.78rem;
  padding: 20px;
}

.login-body {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
}

.login-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  width: 300px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.login-card h1 { font-size: 1.2rem; margin: 0; }
.muted { color: var(--muted); font-size: 0.85rem; margin: 0; }
.error { color: var(--danger); font-size: 0.85rem; margin: 0; }

@media print {
  .topbar, #formCard, .btn-danger, .row-actions, .hint, .foot { display: none !important; }
  main { max-width: 100%; }
  .card { border: none; padding: 0; margin-bottom: 24px; }
}