:root {
  --bg: #f2f2f7;
  --card: #ffffff;
  --separator: rgba(60, 60, 67, 0.18);
  --text: #000000;
  --secondary: rgba(60, 60, 67, 0.6);
  --green: #34c759;
  --red: #ff3b30;
  --radius: 12px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --card: #1c1c1e;
    --separator: rgba(84, 84, 88, 0.65);
    --text: #ffffff;
    --secondary: rgba(235, 235, 245, 0.6);
    --green: #30d158;
    --red: #ff453a;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
  background: var(--bg);
  color: var(--text);
  font: 17px/1.3 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", system-ui, sans-serif;
  -webkit-tap-highlight-color: transparent;
  overscroll-behavior-y: contain;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-user-select: none;
  user-select: none;
}

/* Titelleiste */

.titlebar {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 12px;
}

.titlebar h1 {
  margin: 0;
  font-size: 17px;
  font-weight: 600;
}

.menu-button {
  position: absolute;
  right: 8px;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  color: var(--secondary);
}

.menu-button svg { width: 24px; height: 24px; fill: currentColor; }

.menu {
  position: absolute;
  top: 44px;
  right: 12px;
  z-index: 10;
  min-width: 240px;
  padding: 4px 0;
  background: var(--card);
  border-radius: 14px;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.22);
  overflow: hidden;
}

.menu-item {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 12px 16px;
  text-align: left;
}

.menu-item + .menu-item { border-top: 0.5px solid var(--separator); }
.menu-item.destructive { color: var(--red); }
.menu-item .check { width: 16px; opacity: 0; }
.menu-item[aria-checked="true"] .check { opacity: 1; }

/* Stoppuhr */

main { padding-bottom: 32px; }

.stopwatch {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 8px 16px 4px;
}

.status {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--secondary);
}

.status[data-running="true"] { color: var(--red); }

.big-timer {
  margin: 2px 0 0;
  font-size: clamp(44px, 17vw, 68px);
  font-weight: 300;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.subtitle {
  margin: 0;
  min-height: 20px;
  font-size: 13px;
  color: var(--secondary);
  text-align: center;
}

.toggle {
  margin-top: 14px;
  width: 132px;
  height: 132px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 22px;
  font-weight: 600;
  color: var(--green);
  background: color-mix(in srgb, var(--green) 18%, transparent);
  box-shadow: inset 0 0 0 2px color-mix(in srgb, var(--green) 55%, transparent);
  transition: transform 0.08s ease-out;
}

.toggle:active { transform: scale(0.96); }

.toggle[data-running="true"] {
  color: var(--red);
  background: color-mix(in srgb, var(--red) 18%, transparent);
  box-shadow: inset 0 0 0 2px color-mix(in srgb, var(--red) 55%, transparent);
}

.undo {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  padding: 6px 10px;
  font-size: 13px;
  color: var(--secondary);
}

.undo svg { width: 15px; height: 15px; }

/* Gruppen im Stil der iOS-Listen */

.group { margin-top: 22px; }

.group-title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin: 0 0 7px;
  padding: 0 32px;
  font-size: 13px;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--secondary);
}

.group-title .met { color: var(--green); text-transform: none; letter-spacing: 0; }
.group-title .count { text-transform: none; letter-spacing: 0; }

.card {
  margin: 0 16px;
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
}

.group-footer {
  margin: 7px 0 0;
  padding: 0 32px;
  font-size: 13px;
  color: var(--secondary);
}

.row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 44px;
  padding: 10px 16px;
}

.row + .row { border-top: 0.5px solid var(--separator); }
.row .value { color: var(--secondary); font-variant-numeric: tabular-nums; }

.criterion { justify-content: flex-start; gap: 12px; }

.criterion .mark {
  flex: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  box-shadow: inset 0 0 0 1.5px var(--secondary);
}

.criterion[data-met="true"] .mark {
  background: var(--green) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M5 13l4 4 10-10' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/16px no-repeat;
  box-shadow: none;
}

/* Segmentierter Umschalter */

.segmented {
  display: flex;
  gap: 2px;
  margin: 8px 10px;
  padding: 2px;
  background: color-mix(in srgb, var(--secondary) 18%, transparent);
  border-radius: 9px;
}

.segment {
  flex: 1;
  padding: 7px 4px;
  font-size: 13px;
  border-radius: 7px;
  color: var(--text);
  white-space: nowrap;
}

.segment[aria-selected="true"] {
  background: var(--card);
  font-weight: 600;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.16);
}

/* Verlauf */

.history { margin: 0; padding: 0; list-style: none; }

.history li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 16px;
}

.history li + li { border-top: 0.5px solid var(--separator); }

.history .number {
  flex: none;
  min-width: 26px;
  font-size: 15px;
  color: var(--secondary);
  font-variant-numeric: tabular-nums;
}

.history .main { flex: 1; min-width: 0; }
.history .duration { font-weight: 500; font-variant-numeric: tabular-nums; }
.history .running { color: var(--red); font-weight: 500; }
.history .started { font-size: 12px; color: var(--secondary); }
.history .interval { text-align: right; font-variant-numeric: tabular-nums; }
.history .interval small { display: block; font-size: 12px; color: var(--secondary); }

.history .delete {
  flex: none;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  color: var(--secondary);
}

.history .delete svg { width: 19px; height: 19px; fill: currentColor; }

.history li[data-confirming="true"] .delete {
  width: auto;
  padding: 0 12px;
  height: 32px;
  border-radius: 8px;
  background: var(--red);
  color: #fff;
  font-size: 15px;
  font-weight: 500;
}

.empty { margin: 0; padding: 14px 16px; color: var(--secondary); }

/* Rückfrage */

.confirm {
  border: 0;
  border-radius: 14px;
  padding: 20px;
  max-width: 300px;
  background: var(--card);
  color: var(--text);
  text-align: center;
}

.confirm::backdrop { background: rgba(0, 0, 0, 0.35); }
.confirm h3 { margin: 0 0 8px; font-size: 17px; }
.confirm p { margin: 0 0 18px; font-size: 14px; color: var(--secondary); }
.confirm-actions { display: flex; gap: 10px; }

.confirm-button {
  flex: 1;
  padding: 11px;
  border-radius: 10px;
  background: color-mix(in srgb, var(--secondary) 18%, transparent);
  font-weight: 500;
}

.confirm-button.destructive { background: var(--red); color: #fff; }

[hidden] { display: none !important; }