:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --border: #e2e5ea;
  --text: #1c2230;
  --muted: #667085;
  --primary: #2f6f4f;
  --primary-dark: #24563d;
  --danger: #b3261e;
  color-scheme: light;
}

* { 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);
}

.screen[hidden] { display: none !important; }

/* Login */
#login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.login-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  width: 100%;
  max-width: 340px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

.login-card h1 { margin: 0; font-size: 20px; }
.subtitle { margin: -8px 0 4px; color: var(--muted); font-size: 14px; }

label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 13px;
  color: var(--muted);
}

input[type="text"], input[type="password"], input[type="number"], input[type="date"], input[type="time"] {
  font-size: 14px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
}

button { cursor: pointer; font-family: inherit; }

.primary-btn, #login-form button[type="submit"] {
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 600;
}
.primary-btn:hover, #login-form button[type="submit"]:hover { background: var(--primary-dark); }

.secondary-btn {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 13px;
}

.link-btn {
  background: none;
  border: none;
  color: var(--muted);
  text-decoration: underline;
  font-size: 13px;
  padding: 0;
}

.error { color: var(--danger); font-size: 13px; margin: 0; }
.msg { font-size: 13px; margin: 8px 0 0; }
.msg.ok { color: var(--primary-dark); }
.msg.error { color: var(--danger); }

/* App shell */
#app-screen header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
}
#app-screen header h1 { font-size: 18px; margin: 0; }
.header-right { display: flex; align-items: center; gap: 14px; font-size: 13px; color: var(--muted); }

.tabs {
  display: flex;
  gap: 4px;
  padding: 0 24px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
}

.tab-btn {
  background: none;
  border: none;
  padding: 12px 14px;
  font-size: 14px;
  color: var(--muted);
  border-bottom: 2px solid transparent;
}
.tab-btn.active { color: var(--text); border-bottom-color: var(--primary); font-weight: 600; }

main { max-width: 900px; margin: 0 auto; padding: 24px; }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.panel-header h2 { margin: 0; font-size: 17px; }

.hint { color: var(--muted); font-size: 13px; margin: 0 0 12px; }

.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  font-size: 13px;
}
.data-table th, .data-table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}
.data-table th { color: var(--muted); font-weight: 600; background: #fafbfc; }
.data-table tr:last-child td { border-bottom: none; }

.status-confirmed { color: var(--primary-dark); font-weight: 600; }
.status-cancelled { color: var(--muted); text-decoration: line-through; }

.empty-state { color: var(--muted); font-size: 13px; padding: 16px 0; }

.weekly-table input[type="time"] { width: 100px; }

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 6px 0;
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #f0f2f5;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px 6px 3px 12px;
  font-size: 12px;
}
.chip button {
  background: none;
  border: none;
  color: var(--muted);
  font-size: 14px;
  line-height: 1;
  padding: 2px 6px;
  border-radius: 999px;
}
.chip button:hover { background: #e2e5ea; color: var(--danger); }

.add-time-row {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-top: 4px;
}
.add-time-row input[type="time"] { width: 100px; }

#override-times-wrap { margin-top: 12px; }
#override-times-wrap label { font-size: 13px; color: var(--muted); }
#override-times-wrap[hidden] { display: none; }

.form-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: flex-end;
  margin-top: 16px;
}
.form-row .grow { flex: 1; min-width: 200px; }
.checkbox-label { flex-direction: row; align-items: center; gap: 6px; font-size: 13px; }
.checkbox-label input { width: auto; }

.cancel-btn {
  background: none;
  border: 1px solid var(--danger);
  color: var(--danger);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 12px;
}
.delete-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 12px;
}

h3 { font-size: 14px; margin: 28px 0 4px; }