/* ── Interval Timer Styles ── */

:root {
  --workC:#22c55e;
  --workBg:rgba(34,197,94,0.07);
  --restC:#3b82f6;
  --restBg:rgba(59,130,246,0.07);
  --keyBg:var(--btn);
  --keyAct:var(--btnHover);
  --b0:#f0c674;--b1:#cc99cd;--b2:#67cdcc;--b3:#e06c75;--b4:#98c379;--b5:#d19a66;--b6:#61afef;--b7:#c678dd;
}

html, body {
  width: 100%;
  overflow: hidden;
  touch-action: manipulation;
  overscroll-behavior: none;
}

body {
  padding-top: var(--safeT);
}

#header {
  flex-shrink: 0;
  padding: 8px 12px 4px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  z-index: 10;
}

#editorRow {
  display: flex;
  gap: 6px;
  align-items: stretch;
}

#presetsBtn {
  width: 46px;
  flex-shrink: 0;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--btn);
  color: var(--muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, color 0.15s, transform 0.15s;
  font-family: inherit;
}

#presetsBtn:active { background: var(--keyAct); }
#presetsBtn:hover, #presetsBtn[aria-expanded="true"] { background: var(--btnHover); color: var(--text); }
#presetsBtn[aria-expanded="true"] svg { transform: rotate(180deg); }

.presets-dd {
  margin-top: 6px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  max-height: 260px;
  overflow-y: auto;
  scrollbar-width: none;
  box-shadow: 0 8px 20px rgba(0,0,0,0.3);
}

.presets-dd::-webkit-scrollbar { display: none; }
.presets-dd.hidden { display: none; }

.preset-section { padding: 6px; }
.preset-section + .preset-section { border-top: 1px solid var(--border); }

.preset-hd {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted2);
  padding: 4px 8px 2px;
}

.preset-item {
  display: block;
  width: 100%;
  text-align: left;
  padding: 7px 10px;
  border: none;
  border-radius: 8px;
  background: none;
  color: var(--text);
  font-size: 13px;
  font-family: var(--mono);
  cursor: pointer;
  transition: background 0.1s;
  line-height: 1.4;
}

.preset-item:hover { background: rgba(88,166,255,0.12); }
.preset-item .preset-name { display: block; font-size: 11px; font-family: var(--sans); color: var(--muted); font-weight: 500; margin-bottom: 1px; }

#editorWrap {
  display: flex;
  align-items: center;
  min-width: 0;
  flex: 1;
  min-height: 46px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0 10px;
  overflow-x: auto;
  overflow-y: hidden;
  white-space: nowrap;
  cursor: text;
  scrollbar-width: none;
  font-family: var(--mono);
}

#editorWrap::-webkit-scrollbar { display: none; }

.tok {
  display: inline-block;
  font-size: 18px;
  line-height: 44px;
  padding: 0 1px;
  position: relative;
  cursor: pointer;
  white-space: pre;
  font-family: var(--mono);
}

.tok.cl::before {
  content: '';
  position: absolute;
  left: -1px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--accent);
  border-radius: 1px;
  animation: blink 1s step-end infinite;
}

.tok.cr::after {
  content: '';
  position: absolute;
  right: -1px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--accent);
  border-radius: 1px;
  animation: blink 1s step-end infinite;
}

.empty-caret {
  display: inline-block;
  width: 2px;
  height: 28px;
  background: var(--accent);
  border-radius: 1px;
  animation: blink 1s step-end infinite;
  vertical-align: middle;
}

@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

#errorBar {
  font-size: 12px;
  color: var(--danger);
  padding: 2px 0 0;
  min-height: 0;
  overflow: hidden;
  transition: all 0.2s;
}

#errorBar:empty { padding: 0; }

#infoBar {
  flex-shrink: 0;
  padding: 5px 12px;
  font-size: 12px;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 2px 10px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  font-variant-numeric: tabular-nums;
}

#infoBar span { white-space: nowrap; }

#ringArea {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
  transition: background 0.4s;
}

#ringSVG {
  width: 92%;
  max-width: 380px;
  aspect-ratio: 1;
  display: block;
}

.pop { animation: pop 0.35s ease; }
@keyframes pop { 0% { transform: scale(1); } 40% { transform: scale(1.13); } 100% { transform: scale(1); } }

#controls {
  flex-shrink: 0;
  display: flex;
  gap: 10px;
  padding: 8px 12px;
  justify-content: center;
  background: var(--surface);
  border-top: 1px solid var(--border);
}

#controls button {
  flex: 1;
  max-width: 130px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--keyBg);
  color: var(--text);
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s;
}

#controls button:active { background: var(--keyAct); }
#controls button:disabled { opacity: 0.3; pointer-events: none; }
#btnStart { background: #238636; border-color: #2ea043; color: #fff; }
#btnStart:active { background: #2ea043; }
#btnStart.pause { background: #9e6a03; border-color: #bb8009; }
#btnStart.pause:active { background: #bb8009; }

#keyboard {
  flex-shrink: 0;
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 5px 4px calc(5px + var(--safeB));
  transition: max-height 0.25s ease, padding 0.25s ease, opacity 0.2s;
  max-height: 320px;
  opacity: 1;
  overflow: hidden;
}

#keyboard.collapsed {
  max-height: 0;
  padding-top: 0;
  padding-bottom: 0;
  opacity: 0;
  pointer-events: none;
}

.kb {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
  max-width: 400px;
  margin: 0 auto;
}

.key {
  height: 42px;
  border: none;
  border-radius: 8px;
  background: var(--keyBg);
  color: var(--text);
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.1s, color 0.15s;
  user-select: none;
  -webkit-user-select: none;
}

.key:active { background: var(--keyAct); }
.key.nav { color: var(--accent); font-size: 17px; }
.key.unit { color: var(--muted); }
.key.del { color: var(--danger); }
.key.work { color: var(--workC); }
.key.rest { color: var(--restC); }
.key.paren { font-weight: 700; font-size: 17px; }