* {
  box-sizing: border-box;
}

:root {
  --blau: #4255ff;
  --blau-dunkel: #2f3fd9;
  --blau-hell: #eef0ff;
  --blau-rand: #dce1ff;
  --hintergrund: #f5f6fb;
  --weiss: #ffffff;
  --auf-blau: #ffffff;
  --knopf-text: #2f3fd9;
  --text: #2e3856;
  --text-schwach: #6b7494;
  --gruen: #1e9e5a;
  --gruen-hell: #e7f8ee;
  --rot: #d64545;
  --rot-hell: #fce9e9;
  --fokus-ring: rgba(66, 85, 255, 0.18);
  --schatten: 0 1px 2px rgba(46, 56, 86, 0.04), 0 4px 16px rgba(46, 56, 86, 0.05);
  --schatten-gross: 0 8px 28px rgba(46, 56, 86, 0.1);
  --radius: 14px;
  --radius-klein: 10px;
}

:root[data-thema="dunkel"] {
  color-scheme: dark;
  --blau: #6273ff;
  --blau-dunkel: #4d5ef0;
  --blau-hell: #232952;
  --blau-rand: #303869;
  --hintergrund: #0f1226;
  --weiss: #191d3a;
  --auf-blau: #ffffff;
  --knopf-text: #c6cdff;
  --text: #e8eaf8;
  --text-schwach: #9aa3c9;
  --gruen: #34c17d;
  --gruen-hell: rgba(52, 193, 125, 0.14);
  --rot: #ef6b6b;
  --rot-hell: rgba(239, 107, 107, 0.14);
  --fokus-ring: rgba(98, 115, 255, 0.28);
  --schatten: 0 1px 2px rgba(0, 0, 0, 0.3), 0 6px 20px rgba(0, 0, 0, 0.32);
  --schatten-gross: 0 10px 36px rgba(0, 0, 0, 0.45);
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--hintergrund);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--blau);
  text-decoration: none;
}

h1, h2, h3 {
  margin: 0 0 0.45em 0;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--text);
}

h1 {
  font-size: 28px;
}

h2 {
  font-size: 20px;
}

h3 {
  font-size: 16px;
}

.kopfzeile {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--weiss) 88%, transparent);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  backdrop-filter: blur(14px) saturate(1.2);
  border-bottom: 1px solid var(--blau-rand);
  padding: calc(11px + env(safe-area-inset-top)) 22px 11px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 19px;
  font-weight: 800;
  color: var(--blau);
  letter-spacing: -0.03em;
  line-height: 1.2;
  max-width: calc(100% - 52px);
}

a.logo {
  text-decoration: none;
}

a.logo:hover {
  color: var(--blau-dunkel);
}

.thema-btn {
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  line-height: 1;
  background: transparent;
  border: 1px solid var(--blau-rand);
  color: var(--text-schwach);
}

.thema-btn:hover {
  background: var(--blau-hell);
  color: var(--blau);
  border-color: var(--blau-rand);
}

.inhalt {
  max-width: 920px;
  margin: 0 auto;
  padding: 28px 20px calc(56px + env(safe-area-inset-bottom));
}

.karte-box {
  background: var(--weiss);
  border: 1px solid var(--blau-rand);
  border-radius: var(--radius);
  box-shadow: var(--schatten);
  padding: 24px;
}

.reihe {
  display: flex;
  align-items: center;
  gap: 12px;
}

.reihe.verteilt {
  justify-content: space-between;
}

.raster {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
  margin-top: 16px;
}

.eintrag-kachel {
  background: var(--weiss);
  border: 1px solid var(--blau-rand);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--schatten);
  display: block;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

.eintrag-kachel:hover {
  border-color: color-mix(in srgb, var(--blau) 45%, var(--blau-rand));
  box-shadow: var(--schatten-gross);
  transform: translateY(-1px);
}

.eintrag-kachel h3 {
  margin: 0 0 6px 0;
  color: var(--text);
}

.eintrag-kachel .anzahl {
  color: var(--text-schwach);
  font-size: 13px;
  font-weight: 500;
}

button, .btn {
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-klein);
  border: 1px solid transparent;
  padding: 9px 16px;
  cursor: pointer;
  background: var(--blau-hell);
  color: var(--knopf-text);
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  text-decoration: none;
  line-height: 1.3;
}

button:hover, .btn:hover {
  background: var(--blau-rand);
}

button:active, .btn:active {
  transform: translateY(0.5px);
}

button.primaer, .btn.primaer, a.btn.primaer {
  background: var(--blau);
  color: var(--auf-blau);
  box-shadow: 0 1px 2px rgba(47, 63, 217, 0.18), 0 4px 12px var(--fokus-ring);
}

button.primaer:hover, .btn.primaer:hover, a.btn.primaer:hover {
  background: var(--blau-dunkel);
  color: var(--auf-blau);
}

button.gefahr, .btn.gefahr {
  background: transparent;
  color: var(--rot);
  border-color: transparent;
}

button.gefahr:hover, .btn.gefahr:hover {
  background: var(--rot-hell);
  border-color: transparent;
}

button:disabled, .btn:disabled {
  opacity: 0.45;
  cursor: default;
  transform: none;
}

input[type="text"], input[type="number"], textarea, select {
  font-family: inherit;
  font-size: 15px;
  padding: 10px 12px;
  border: 1px solid var(--blau-rand);
  border-radius: var(--radius-klein);
  color: var(--text);
  background: var(--weiss);
  width: 100%;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input[type="text"]:hover, input[type="number"]:hover, textarea:hover, select:hover {
  border-color: color-mix(in srgb, var(--blau) 35%, var(--blau-rand));
}

input[type="text"]:focus, input[type="number"]:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--blau);
  box-shadow: 0 0 0 3px var(--fokus-ring);
}

textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.45;
}

label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-schwach);
  display: block;
  margin-bottom: 6px;
  letter-spacing: 0.01em;
}

.feld {
  margin-bottom: 16px;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  text-align: left;
  padding: 11px 10px;
  border-bottom: 1px solid var(--blau-rand);
  font-size: 15px;
  vertical-align: middle;
}

th {
  color: var(--text-schwach);
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  padding-top: 4px;
  padding-bottom: 10px;
}

td input[type="text"] {
  border-color: transparent;
  background: transparent;
  padding: 8px 10px;
  border-radius: 8px;
}

td input[type="text"]:hover {
  background: var(--blau-hell);
  border-color: transparent;
}

td input[type="text"]:focus {
  background: var(--weiss);
  border-color: var(--blau);
}

.balken-aussen {
  background: var(--blau-hell);
  border-radius: 999px;
  height: 8px;
  overflow: hidden;
}

.balken-innen {
  background: var(--blau);
  height: 100%;
  border-radius: inherit;
  transition: width 0.25s ease;
}

.chip {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.chip.gruen {
  background: var(--gruen-hell);
  color: var(--gruen);
}

.chip.rot {
  background: var(--rot-hell);
  color: var(--rot);
}

.feedback-eigene {
  text-decoration: line-through;
  color: var(--rot);
}

.feedback-loesung {
  color: var(--gruen);
  font-weight: 700;
}

.streak-box {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
  padding: 18px 22px;
}

.streak-flamme {
  font-size: 28px;
  line-height: 1;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--blau-hell);
  border-radius: 12px;
  flex-shrink: 0;
}

.streak-zahl {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
}

.streak-zahl span:first-child {
  color: var(--blau);
  font-weight: 800;
}

.streak-text {
  color: var(--text-schwach);
  font-size: 13px;
  margin-top: 2px;
}

.leer-hinweis {
  color: var(--text-schwach);
  text-align: center;
  padding: 40px 12px;
  font-size: 14px;
}

.zurueck-link {
  color: var(--text-schwach);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 8px;
  border-radius: 8px;
  transition: color 0.15s ease, background-color 0.15s ease;
}

.zurueck-link:hover {
  color: var(--blau);
  background: var(--blau-hell);
}

.modus-buttons {
  display: flex;
  gap: 10px;
  margin: 18px 0 8px;
  flex-wrap: wrap;
}

.modus-buttons a.btn {
  padding: 11px 18px;
  flex: 1 1 140px;
  text-align: center;
}

.modus-buttons[hidden] {
  display: none;
}

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(18, 22, 48, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
  padding: 20px;
  -webkit-backdrop-filter: blur(2px);
  backdrop-filter: blur(2px);
}

.overlay[hidden] {
  display: none;
}

.dialog-box {
  background: var(--weiss);
  border: 1px solid var(--blau-rand);
  border-radius: 16px;
  padding: 22px;
  width: 380px;
  max-width: 100%;
  box-shadow: var(--schatten-gross);
}

.dialog-box h3 {
  margin-bottom: 14px;
}

.eintrag-kachel-kopf {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.kachel-link {
  display: block;
  color: inherit;
  min-width: 0;
  flex: 1;
}

.ordner-detail-aktionen {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.ordner-detail-aktionen .btn {
  flex: 1 1 auto;
}

.checkbox-zeile {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 4px;
  border-bottom: 1px solid var(--blau-hell);
}

.checkbox-zeile:last-child {
  border-bottom: none;
}

.checkbox-zeile label {
  margin: 0;
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
}

.eintrag-kachel .mini-btn {
  padding: 6px 10px;
  font-size: 12px;
  border-radius: 8px;
  min-height: 32px;
  opacity: 0.72;
}

.eintrag-kachel:hover .mini-btn,
.eintrag-kachel .mini-btn:focus {
  opacity: 1;
}

@media (max-width: 700px) {
  .logo {
    font-size: 14px;
  }

  .inhalt {
    padding: 20px 14px calc(48px + env(safe-area-inset-bottom));
  }

  .karte-box {
    padding: 18px;
  }

  .reihe.verteilt {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .reihe.verteilt h1,
  .reihe.verteilt h2,
  .reihe.verteilt h3 {
    margin-bottom: 0;
  }

  .modus-buttons a.btn {
    flex: 1 1 100%;
  }

  .raster {
    grid-template-columns: 1fr;
  }

  .ordner-detail-aktionen {
    width: 100%;
  }

  .ordner-detail-aktionen .btn,
  .ordner-detail-aktionen button {
    width: 100%;
  }

  .eintrag-kachel .mini-btn {
    opacity: 1;
  }
}