:root {
  --bg: #f4f5f7;
  --card: #ffffff;
  --border: #dde1e6;
  --text: #1f2430;
  --muted: #6b7280;
  --accent: #2563eb;
  --accent-text: #ffffff;
  --danger: #dc2626;
  --ok: #16a34a;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  padding-bottom: 60px;
}

header.app-header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 14px 16px;
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 10px;
}

header.app-header h1 {
  font-size: 1.05rem;
  margin: 0;
  flex: 1;
}

nav.tabs {
  display: flex;
  gap: 4px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 0 16px;
  position: sticky;
  top: 49px;
  z-index: 9;
}

nav.tabs .tab {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 10px 12px;
  font: inherit;
  font-weight: 500;
  color: var(--muted);
  cursor: pointer;
}

nav.tabs .tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 16px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  margin-bottom: 12px;
}

.card h2 { margin: 0 0 8px; font-size: 1rem; }
.card h3 { margin: 0 0 6px; font-size: 0.95rem; }

.muted { color: var(--muted); font-size: 0.85rem; }

button {
  font: inherit;
  cursor: pointer;
}

.btn {
  display: inline-block;
  padding: 10px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  font-weight: 500;
}

.btn.primary {
  background: var(--accent);
  color: var(--accent-text);
  border-color: var(--accent);
}

.btn.danger {
  color: var(--danger);
  border-color: var(--danger);
}

.btn.small {
  padding: 6px 10px;
  font-size: 0.85rem;
}

.btn:disabled { opacity: 0.5; cursor: default; }

.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.row.between { justify-content: space-between; }

input[type=text], input[type=number], input[type=date], input[type=time], select, textarea {
  font: inherit;
  padding: 9px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  width: 100%;
  background: #fff;
  color: var(--text);
}

textarea {
  resize: vertical;
  overflow: hidden;
  min-height: 44px;
}

label { font-size: 0.85rem; color: var(--muted); display: block; margin-bottom: 3px; }

.field { margin-bottom: 10px; }

.date-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}
.date-nav input[type=date] { flex: 1; }

.badge {
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: 999px;
  background: #eef1f5;
  color: var(--muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.badge.enummer { background: #dbeafe; color: #1e40af; }
.badge.kraft { background: #fee2e2; color: #991b1b; }
.badge.cardio { background: #dcfce7; color: #166534; }
.badge.archiviert { background: #f3f4f6; color: var(--muted); }

.form-error {
  color: var(--danger);
  font-size: 0.85rem;
  margin-top: 6px;
}

.group-heading {
  font-size: 0.85rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin: 18px 4px 8px;
}

.uebung-card { display: flex; align-items: center; gap: 10px; }
.uebung-card .info { flex: 1; }
.uebung-card .info .name { font-weight: 600; }

.eintrag-card { border-left: 4px solid var(--accent); }
.eintrag-card.cardio { border-left-color: var(--ok); }
.eintrag-card .titel { font-weight: 600; margin-bottom: 6px; }
.eintrag-card .notiz { margin-top: 6px; font-size: 0.9rem; color: var(--muted); }

.satz-liste { display: flex; flex-direction: column; gap: 4px; margin-bottom: 4px; }
.satz-zeile {
  display: flex;
  gap: 10px;
  align-items: baseline;
  font-size: 0.92rem;
  padding: 3px 0;
}
.satz-zeile .satz-nr { color: var(--muted); width: 18px; flex-shrink: 0; }
.satz-zeile .satz-seite { color: var(--muted); font-size: 0.8rem; }
.satz-zeile .satz-notiz { color: var(--muted); font-size: 0.82rem; }

.werte-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.werte-chips .chip {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  color: #166534;
  border-radius: 8px;
  padding: 4px 8px;
  font-size: 0.85rem;
}
.werte-chips .chip .label { color: #15803d; font-weight: 600; margin-right: 4px; }

.satz-row-form, .wert-row-form {
  display: flex;
  gap: 6px;
  align-items: flex-start;
  margin-bottom: 6px;
}
.satz-row-form input[type=number] { width: 90px; }
.satz-row-form select { width: 100px; }
.satz-row-form input[type=text], .wert-row-form input[type=text] { flex: 1; }
.wert-row-form input[type=text]:first-child { max-width: 140px; }
.remove-row-btn {
  flex-shrink: 0;
  padding: 9px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--danger);
}

.historie-box {
  background: #f9fafb;
  border: 1px dashed var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  margin-bottom: 10px;
}
.historie-heading {
  font-size: 0.72rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 6px;
}
.historie-zeile {
  font-size: 0.88rem;
  padding: 2px 0;
}
.historie-datum { font-weight: 600; margin-right: 6px; }

.eintrag-foto {
  display: block;
  max-width: 220px;
  max-height: 220px;
  border-radius: 8px;
  border: 1px solid var(--border);
  margin-top: 8px;
}

.foto-preview-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 8px;
  flex-wrap: wrap;
}
.foto-preview-row .eintrag-foto { margin-top: 0; }

.uebung-picker-results {
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-top: 4px;
  max-height: 280px;
  overflow-y: auto;
  background: #fff;
}
.uebung-picker-item {
  padding: 9px 10px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  font-size: 0.92rem;
}
.uebung-picker-item:last-child { border-bottom: none; }
.uebung-picker-item:active { background: #eef1f5; }
.uebung-picker-item.muted { cursor: default; }
.uebung-picker-gruppe {
  padding: 6px 10px;
  font-size: 0.72rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  background: #f9fafb;
  border-bottom: 1px solid var(--border);
}
.uebung-picker-selected {
  background: #f9fafb;
  border: 1px dashed var(--border);
  border-radius: 8px;
  padding: 8px 10px;
}

table.verlauf {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
table.verlauf th, table.verlauf td {
  text-align: left;
  padding: 8px 6px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
table.verlauf th { color: var(--muted); font-weight: 600; font-size: 0.8rem; }

/* Vollbild-Detailansicht einer Übung (Verlauf-Tab): deckt bewusst per
   position:fixed+inset:0 den kompletten Viewport ab (auch Header/Tabs),
   damit auf dem Handy der ganze Platz für Kurve/Historie genutzt wird. */
.fullscreen-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: var(--bg);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.fullscreen-header {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 12px 16px;
  position: sticky;
  top: 0;
}

.fullscreen-title {
  font-weight: 600;
  font-size: 1rem;
}

.fullscreen-body {
  max-width: 720px;
  margin: 0 auto;
  padding: 16px;
}

.chart-card { padding: 10px 10px 4px; }

.verlauf-chart {
  width: 100%;
  height: auto;
  display: block;
}

.chart-line {
  stroke: var(--accent);
  stroke-width: 2;
}

.chart-dot { fill: var(--accent); }

.chart-axis-label {
  font-size: 8px;
  fill: var(--muted);
}

.chart-x-label {
  font-size: 8px;
  fill: var(--muted);
}

.vergleich-result {
  border-radius: 8px;
  padding: 10px;
  font-size: 0.9rem;
  border: 1px solid var(--border);
}
.vergleich-result.positive { background: #f0fdf4; border-color: #bbf7d0; }
.vergleich-result.negative { background: #fef2f2; border-color: #fecaca; }
.vergleich-result.neutral { background: #f9fafb; }
.vergleich-diff {
  margin-top: 4px;
  font-weight: 700;
}
.vergleich-result.positive .vergleich-diff { color: #15803d; }
.vergleich-result.negative .vergleich-diff { color: var(--danger); }
.vergleich-result.neutral .vergleich-diff { color: var(--muted); }