/* 1. Basis-Reset und Variablen */
*,
*::before,
*::after {
  box-sizing: border-box;
}
:root {
  --bg: #f5f5f5;
  --card-bg: #fff;
  --radius: 0.5rem;
  --gap: 0.75rem;
  --max-width: 48rem; /* 768 px */
}

/* 2. Grundlayout */
body {
  margin: 0;
  font-family: system-ui, sans-serif;
  background: var(--bg);
  color: #222;
}

.container {
  max-width: var(--max-width);
  margin-inline: auto;
  padding: 1.5rem;
}

/* 3. Formularelemente */
input,
button,
select {
  width: 100%;
  padding: 0.5rem;
  margin-top: var(--gap);
  border: 1px solid #ccc;
  border-radius: var(--radius);
  font-size: 1rem;
}

button {
  cursor: pointer;
}

.btn-row {
  /* GPS / Standort-Buttons nebeneinander */
  display: flex;
  gap: var(--gap);
}

/* 4. Feedbackboxen */
.current-values,
.result {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 1rem;
  margin-top: var(--gap);
  white-space: pre-line;
}

/* 5. Chart responsive einbetten */
.chart-wrapper {
  position: relative;
  height: 0;
  padding-bottom: 56.25%; /* 16:9 */
  margin-top: 2rem;
}

.chart-wrapper canvas {
  position: absolute;
  inset: 0;
  width: 100% !important;
  height: 100% !important;
}

/* 6. Verbesserungen ab Tablet-Breite */
@media (min-width: 40rem) {
  /* 640 px */
  .inputs-inline {
    /* Temperatur, Feuchte, Button in einer Zeile */
    display: flex;
    gap: var(--gap);
  }
  .inputs-inline input {
    flex: 1;
  }
  .inputs-inline button {
    width: auto;
  }
}