/* =========================================================
   番茄待办 · styles
   ========================================================= */
:root {
  --bg:        #f6f4ef;
  --bg-card:   #ffffff;
  --bg-soft:   #f0ece5;
  --text:      #1f2024;
  --text-dim:  #6b6f78;
  --border:    #e6e2da;
  --accent:    #e53935;       /* tomato red */
  --accent-2:  #ff846e;
  --accent-d:  #c42621;
  --green:     #4caf50;
  --shadow:    0 6px 24px rgba(20, 20, 30, .06), 0 1px 3px rgba(20, 20, 30, .04);
  --radius:    16px;
  --ring-bg:   #ece8e0;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:      #0f1115;
    --bg-card: #181b21;
    --bg-soft: #20242c;
    --text:    #ecedf0;
    --text-dim:#8a8f99;
    --border:  #2a2f38;
    --accent:  #ff5a52;
    --accent-2:#ffb4a8;
    --accent-d:#c42621;
    --shadow:  0 8px 28px rgba(0, 0, 0, .45), 0 1px 2px rgba(0, 0, 0, .4);
    --ring-bg: #232831;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

button { font: inherit; cursor: pointer; }
input, select { font: inherit; color: var(--text); }

/* ---- layout ---- */
.app {
  max-width: 1080px;
  margin: 0 auto;
  padding: 20px 20px 40px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 28px; height: 28px; border-radius: 8px;
  background:
    radial-gradient(circle at 35% 30%, var(--accent-2), var(--accent) 60%, var(--accent-d) 100%);
  box-shadow: 0 2px 6px rgba(229,57,53,.4);
  position: relative;
}
.brand-mark::before {
  content: ""; position: absolute; left: 50%; top: 2px;
  width: 6px; height: 7px; background: var(--green);
  clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
  transform: translateX(-50%) scale(.55);
}
.brand-name {
  margin: 0; font-size: 18px; letter-spacing: .5px; font-weight: 700;
}

.grid {
  display: grid;
  gap: 18px;
  grid-template-columns: 1fr;
}
@media (min-width: 860px) {
  .grid { grid-template-columns: 1.05fr 1fr; }
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  display: flex; flex-direction: column; gap: 16px;
}

.card-head {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
}
.card-head h2 { margin: 0; font-size: 16px; font-weight: 700; }
.counter { color: var(--text-dim); font-size: 12px; }

/* ---- modes ---- */
.modes {
  display: inline-flex; background: var(--bg-soft);
  padding: 3px; border-radius: 10px; border: 1px solid var(--border);
}
.mode {
  border: 0; background: transparent; color: var(--text-dim);
  padding: 6px 12px; border-radius: 8px; font-size: 13px; font-weight: 600;
}
.mode[aria-selected="true"] {
  background: var(--bg-card); color: var(--accent);
  box-shadow: 0 1px 2px rgba(0,0,0,.08);
}

/* ---- ring ---- */
.ring-wrap {
  position: relative; width: 220px; height: 220px;
  margin: 4px auto 0;
}
.ring { width: 100%; height: 100%; transform: rotate(-90deg); }
.ring-bg {
  fill: none; stroke: var(--ring-bg); stroke-width: 12;
}
.ring-fg {
  fill: none;
  stroke: var(--accent);
  stroke-width: 12;
  stroke-linecap: round;
  transition: stroke-dashoffset .35s linear, stroke .2s ease;
}
.ring-fg.short { stroke: #29b6f6; }
.ring-fg.long  { stroke: #66bb6a; }

.ring-center {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 2px;
}
.mode-label {
  color: var(--text-dim); font-size: 12px; letter-spacing: 1px;
  text-transform: uppercase; font-weight: 600;
}
.time {
  font-size: 48px; font-weight: 700; letter-spacing: 1px;
  font-variant-numeric: tabular-nums;
  color: var(--text);
}
.session { color: var(--text-dim); font-size: 12px; margin-top: 2px; }
.session strong { color: var(--accent); font-weight: 700; }

/* ---- focus-task ---- */
.focus-task { display: flex; align-items: center; gap: 8px; }
.focus-task label { color: var(--text-dim); font-size: 12px; }
.focus-task select {
  flex: 1; padding: 6px 10px; border-radius: 8px;
  background: var(--bg-soft); border: 1px solid var(--border);
  outline: none;
}

/* ---- controls ---- */
.controls { display: flex; gap: 10px; justify-content: center; }
.btn {
  border: 1px solid var(--border); background: var(--bg-soft);
  color: var(--text); padding: 10px 18px; border-radius: 10px;
  font-weight: 600; transition: transform .08s, background .15s, border-color .15s;
}
.btn:hover { background: var(--bg-card); }
.btn:active { transform: translateY(1px); }
.btn.primary {
  background: var(--accent); color: #fff; border-color: var(--accent-d);
}
.btn.primary:hover { background: var(--accent-d); }
.btn.ghost { background: transparent; }
.btn.icon { width: 40px; padding: 0; font-size: 20px; line-height: 1; }

.link {
  background: transparent; border: 0; color: var(--text-dim);
  font-size: 13px; padding: 6px 0; align-self: flex-start;
}
.link:hover { color: var(--accent); }
.link.danger:hover { color: var(--accent); }

/* ---- stats ---- */
.stats {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 8px; padding-top: 10px; border-top: 1px dashed var(--border);
}
.stat { text-align: center; color: var(--text-dim); font-size: 11px; }
.stat .num {
  display: block; font-size: 20px; font-weight: 700; color: var(--text);
  font-variant-numeric: tabular-nums;
}

/* ---- todos ---- */
.add-row { display: flex; gap: 8px; }
.add-row input {
  flex: 1; padding: 10px 14px; border-radius: 10px;
  background: var(--bg-soft); border: 1px solid var(--border);
  outline: none;
}
.add-row input:focus { border-color: var(--accent); }

.todo-list {
  list-style: none; margin: 0; padding: 0;
  display: flex; flex-direction: column; gap: 6px;
  max-height: 420px; overflow-y: auto;
}
.todo {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: 10px;
  background: var(--bg-soft); border: 1px solid transparent;
  transition: background .15s, border-color .15s, opacity .2s;
}
.todo:hover { border-color: var(--border); }
.todo.current {
  border-color: var(--accent);
  background: linear-gradient(0deg, rgba(229,57,53,.08), rgba(229,57,53,.08));
}
.todo input[type=checkbox],
.event input[type=checkbox] {
  appearance: none; -webkit-appearance: none;
  width: 20px; height: 20px; border-radius: 6px;
  border: 2px solid var(--border); background: var(--bg-card);
  display: grid; place-items: center; cursor: pointer; flex-shrink: 0;
}
.todo input[type=checkbox]:checked,
.event input[type=checkbox]:checked {
  background: var(--accent); border-color: var(--accent);
}
.todo input[type=checkbox]:checked::after,
.event input[type=checkbox]:checked::after {
  content: "✓"; color: #fff; font-size: 13px; font-weight: 700;
}
.todo .text { flex: 1; min-width: 0; word-break: break-word; }
.todo.done .text {
  text-decoration: line-through; color: var(--text-dim);
}
.todo .meta { color: var(--text-dim); font-size: 11px; white-space: nowrap; }
.todo .meta .pomo { color: var(--accent); font-weight: 700; }
.todo .del {
  background: transparent; border: 0; color: var(--text-dim);
  font-size: 18px; padding: 0 4px; border-radius: 6px;
}
.todo .del:hover { color: var(--accent); }
.empty {
  text-align: center; color: var(--text-dim); padding: 30px 0; font-size: 13px;
}

.todo-foot {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 6px; border-top: 1px dashed var(--border);
}
.filters { display: inline-flex; gap: 6px; }
.filter {
  background: transparent; border: 0; color: var(--text-dim);
  padding: 4px 10px; border-radius: 999px; font-size: 12px;
}
.filter.active { background: var(--bg-soft); color: var(--text); }

/* ---- bottom ---- */
.bottom {
  text-align: center; color: var(--text-dim); font-size: 12px;
  padding: 6px 0 0;
}

/* ---- dialog ---- */
.dialog {
  border: 0; padding: 0; border-radius: 16px;
  background: var(--bg-card); color: var(--text);
  box-shadow: 0 24px 60px rgba(0,0,0,.25);
  width: min(420px, 92vw);
}
.dialog::backdrop { background: rgba(0,0,0,.45); }
.dialog-inner {
  padding: 20px; display: flex; flex-direction: column; gap: 12px;
}
.dialog h3 { margin: 0 0 4px; font-size: 16px; }
.dialog label {
  display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--text-dim);
}
.dialog label.row {
  flex-direction: row; align-items: center; gap: 8px; color: var(--text);
}
.dialog input[type=number] {
  padding: 8px 10px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--bg-soft); outline: none;
}
.dialog input[type=number]:focus { border-color: var(--accent); }
.dialog-actions {
  display: flex; justify-content: flex-end; gap: 8px; margin-top: 6px;
}

/* ---- focus-event badge ---- */
.focus-event {
  display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--text-dim);
  padding: 8px 10px; border-radius: 10px; background: rgba(229,57,53,.07);
  border: 1px dashed rgba(229,57,53,.35);
}
.focus-event strong { color: var(--accent); font-weight: 700; }
.focus-event .link { margin-left: auto; padding: 4px 0; }

/* ---- calendar ---- */
.calendar-card { grid-column: 1 / -1; }
.cal-nav { display: flex; align-items: center; gap: 6px; }
.cal-title { font-size: 14px; font-weight: 700; min-width: 92px; text-align: center; }

.cal-week {
  display: grid; grid-template-columns: repeat(7, 1fr);
  text-align: center; color: var(--text-dim); font-size: 12px; gap: 6px;
}
.cal-grid {
  display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px;
}
.cal-cell {
  position: relative; aspect-ratio: 1 / 0.92;
  border-radius: 10px; background: var(--bg-soft); border: 1px solid transparent;
  display: flex; align-items: flex-start; justify-content: flex-end;
  padding: 6px 8px; font-size: 13px; color: var(--text); cursor: pointer;
  transition: background .15s, border-color .15s, color .15s;
}
.cal-cell:hover { border-color: var(--border); }
.cal-cell.empty { background: transparent; cursor: default; }
.cal-cell.empty:hover { border-color: transparent; }
.cal-cell.today { border-color: var(--accent); color: var(--accent); font-weight: 700; }
.cal-cell.selected {
  background: var(--bg-card); border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(229,57,53,.16);
}
.cal-cell.has::after {
  content: ""; position: absolute; left: 8px; bottom: 8px;
  width: 6px; height: 6px; border-radius: 50%; background: var(--accent);
}
.cal-cell.today.has::after { background: var(--accent); }

/* ---- day panel ---- */
.day-panel {
  display: flex; flex-direction: column; gap: 12px;
  border-top: 1px dashed var(--border); padding-top: 14px;
}
.day-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.day-head strong { font-size: 15px; }

.event-form { flex-wrap: wrap; align-items: stretch; }
.event-form .ev-time-input,
.event-form .ev-dur-input {
  flex: 0 0 auto; width: auto; padding: 10px 12px; border-radius: 10px;
  background: var(--bg-soft); border: 1px solid var(--border); outline: none;
}
.event-form .ev-dur-input { max-width: 110px; }
.event-form .ev-title { flex: 1 1 160px; }

.event-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.event {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: 10px;
  background: var(--bg-soft); border: 1px solid transparent;
}
.event:hover { border-color: var(--border); }
.event.done .ev-title { text-decoration: line-through; color: var(--text-dim); }
.event .ev-time {
  font-variant-numeric: tabular-nums; font-size: 12px; color: var(--text-dim);
  white-space: nowrap; min-width: 38px;
}
.event .ev-title { flex: 1; min-width: 0; word-break: break-word; }
.event .ev-pomo { color: var(--accent); font-size: 12px; font-weight: 700; white-space: nowrap; }
.event .ev-start {
  background: var(--accent); color: #fff; border: 0; border-radius: 8px;
  padding: 6px 10px; font-size: 12px; font-weight: 600; white-space: nowrap;
  transition: background .15s;
}
.event .ev-start:hover { background: var(--accent-d); }
.event .ev-del {
  background: transparent; border: 0; color: var(--text-dim);
  font-size: 18px; padding: 0 4px; border-radius: 6px;
}
.event .ev-del:hover { color: var(--accent); }

@media (max-width: 520px) {
  .cal-cell { font-size: 12px; padding: 4px 6px; }
  .event { flex-wrap: wrap; }
  .event .ev-start { order: 5; }
}

/* ---- toast ---- */
.toast {
  position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%);
  background: var(--text); color: var(--bg);
  padding: 10px 16px; border-radius: 999px; font-size: 13px;
  box-shadow: 0 8px 20px rgba(0,0,0,.2);
  animation: slideUp .25s ease;
  z-index: 1000;
}
@keyframes slideUp { from {opacity:0; transform:translate(-50%,10px)} }