:root{
  --bg: #101214;
  --card: #171a1e;
  --cardBorder: #252a31;
  --text: #edf1f7;
  --muted: #b4bcc8;
  --muted2: #8f98a5;
  --accent: #5f6672;
  --modeLabelColor: #d9e2f0;
  --modeChipBorder: #4f5866;
  --modeChipBg: #2b313a;
  --modeChipText: #edf1f7;
  --danger: #ff4d6d;
  --shadow: 0 12px 28px rgba(0,0,0,.28);
  --radius: 18px;
  --focusRing: 0 0 0 3px rgba(151,160,172,.38);
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans JP", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
}

*{ box-sizing: border-box; }
[hidden]{ display: none !important; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: var(--sans);
  color: var(--text);
  background: var(--bg);
}

.app{
  max-width: 880px;
  margin: 0 auto;
  padding: 28px 18px 42px;
  display: grid;
  gap: 18px;
}

.header{
  padding: 2px 4px;
  display: flex;
  justify-content: flex-end;
}

.globalOptions{
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

.infoSectionsWrap{
  display: grid;
  gap: 18px;
}

.belowTimerOptions{
  display: flex;
  justify-content: flex-end;
  margin-top: -6px;
}

.card{
  background: var(--card);
  border: 1px solid var(--cardBorder);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
}

.modeRow{
  display:flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.chip{
  appearance: none;
  border: 1px solid var(--cardBorder);
  background: #1f242b;
  color: var(--text);
  padding: 8px 12px;
  border-radius: 999px;
  cursor: pointer;
  transition: transform .06s ease, background .15s ease, border-color .15s ease;
}
.chip[aria-pressed="true"]{
  border-color: var(--modeChipBorder);
  background: var(--modeChipBg);
  color: var(--modeChipText);
}
.chip:active{ transform: translateY(1px); }
.chip:focus-visible{ outline: none; box-shadow: var(--focusRing); }

.timerWrap{
  display:grid;
  gap: 10px;
  align-items: center;
  margin: 6px 0 14px;
  justify-items: center;
}

.currentTimeWrap{
  display: grid;
  gap: 4px;
  justify-items: center;
}

.currentTimeCard{
  padding-top: 16px;
  padding-bottom: 16px;
}

.currentTimeLabel{
  color: var(--muted2);
  font-size: 12px;
}

.currentDateText{
  font-size: 14px;
  color: var(--muted);
  letter-spacing: .3px;
}

.currentTimeText{
  font-family: var(--mono);
  font-size: 34px;
  letter-spacing: .6px;
  color: var(--text);
}

.calendarWrap{
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--cardBorder);
}

.calendarHeaderRow{
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.calendarMonthText{
  font-size: 14px;
  color: var(--muted);
  min-width: 108px;
  text-align: center;
}

.calendarNavBtn{
  appearance: none;
  border: 1px solid var(--cardBorder);
  background: #1f242b;
  color: var(--text);
  width: 30px;
  height: 30px;
  border-radius: 8px;
  cursor: pointer;
  line-height: 1;
  padding: 0;
}

.calendarNavBtn:hover{
  background: #252b33;
}

.calendarNavBtn:focus-visible{
  outline: none;
  box-shadow: var(--focusRing);
}

.calendarWeekdays,
.calendarGrid{
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 6px;
}

.calendarWeekdays{
  margin-bottom: 6px;
}

.calendarWeekdays span{
  text-align: center;
  font-size: 12px;
  color: var(--muted2);
}

.calendarDay{
  display: grid;
  place-items: center;
  min-height: 30px;
  border-radius: 8px;
  font-size: 13px;
  color: var(--muted);
  background: #1b2027;
  border: 1px solid transparent;
}

.calendarDay.isSunday{
  color: #d39aa2;
}

.calendarDay.isSaturday{
  color: #9ab0d3;
}

.calendarDay.isHoliday{
  color: #e3a2ac;
  border-color: #704652;
}

.calendarDay.isToday{
  color: var(--text);
  border-color: #5c6573;
  background: #2a313b;
  font-weight: 600;
}

.calendarDay.isBlank{
  background: transparent;
  border-color: transparent;
}

.time{
  display:flex;
  justify-content:center;
}
.timeText{
  font-family: var(--mono);
  font-size: 44px;
  line-height: 1;
  letter-spacing: 1px;
  font-variant-numeric: tabular-nums;
  color: var(--modeLabelColor);
}

.timerDial{
  position: relative;
  width: 220px;
  height: 220px;
  display: grid;
  place-items: center;
}

.progressCircle{
  --progress: 0%;
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(var(--accent) var(--progress), #1f242b 0);
  border: 1px solid var(--cardBorder);
  transition: background .2s linear;
}

.timerDial .time{
  position: relative;
  z-index: 1;
}

.controls{
  display:flex;
  gap: 10px;
  justify-content: center;
  margin-bottom: 14px;
}

.btn{
  appearance: none;
  border: 1px solid var(--cardBorder);
  background: #1f242b;
  color: var(--text);
  padding: 10px 14px;
  border-radius: 12px;
  cursor: pointer;
  transition: transform .06s ease, background .15s ease, border-color .15s ease;
  min-width: 112px;
}
.btn:hover{ background: #252b33; }
.btn:active{ transform: translateY(1px); }
.btn:focus-visible{ outline:none; box-shadow: var(--focusRing); }

.btnPrimary{
  border-color: #4f5866;
  background: #323944;
}
.btnPrimary:hover{ background: #3a424e; }

.btnGhost{
  background: transparent;
}

.btnInline{
  min-width: 0;
  padding: 6px 10px;
  border-radius: 10px;
  font-size: 12px;
}

.metaRow{
  display:flex;
  gap: 12px;
  justify-content: space-between;
  flex-wrap: wrap;
}
.meta{
  display:flex;
  gap: 10px;
  align-items: baseline;
}
.metaLabel{
  color: var(--muted2);
  font-size: 12px;
}
.metaValue{
  font-size: 14px;
}

#statusText{
  color: var(--modeLabelColor);
}

.cardHeader{
  margin-bottom: 12px;
}
.cardTitle{
  margin: 0;
  font-size: 16px;
}
.cardDesc{
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.helpSteps{
  margin: 0;
  padding-left: 1.25rem;
  display: grid;
  gap: 10px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.helpSteps strong{
  color: var(--text);
  font-weight: 600;
}

.settings{
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}
.field{
  display: grid;
  gap: 6px;
}
.fieldFull{ grid-column: 1 / -1; }
.fieldLabel{
  color: var(--muted);
  font-size: 12px;
}
.input{
  width: 100%;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--cardBorder);
  background: #1f242b;
  color: var(--text);
}
.input:focus{
  outline: none;
  box-shadow: var(--focusRing);
  border-color: #5c6573;
}

select.input{
  cursor: pointer;
}

.previewSoundRow{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: flex-start;
}

.previewSoundHint{
  margin: 0;
  flex: 1;
  min-width: 200px;
  color: var(--muted2);
  font-size: 12px;
  line-height: 1.45;
}

.toggle{
  display:flex;
  gap: 10px;
  align-items:center;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--cardBorder);
  background: #1a1e24;
}

.toggleCompact{
  width: fit-content;
  padding: 8px 10px;
}
.toggle input{
  width: 18px;
  height: 18px;
}

.settingsActions{
  grid-column: 1 / -1;
  display:flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.footer{
  padding: 6px 4px 0;
}
.footerText{
  margin:0;
  color: var(--muted2);
  font-size: 12px;
}

.pwaUpdateBanner{
  position: fixed;
  left: 50%;
  bottom: 14px;
  transform: translateX(-50%);
  width: min(720px, calc(100% - 24px));
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  padding: 12px;
  border-radius: 14px;
  border: 1px solid var(--cardBorder);
  background: #13171d;
  color: var(--text);
  box-shadow: var(--shadow);
  z-index: 9999;
}

.pwaUpdateText{
  margin: 0;
  font-size: 14px;
}

.pwaUpdateActions{
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.pwaUpdateActions .btn{
  min-width: 0;
}

@media (max-width: 640px){
  .timerDial{
    width: 190px;
    height: 190px;
  }
  .timeText{ font-size: 40px; }
  .settings{ grid-template-columns: 1fr; }
  .btn{ min-width: 0; flex: 1; }
  .pwaUpdateBanner{
    flex-direction: column;
    align-items: stretch;
  }
  .pwaUpdateActions .btn{
    flex: 1;
  }
}