:root {
  --canvas: #F8FAF7;
  --canvas-2: #F3F5F1;
  --surface: #FFFFFF;
  --border: #E1E8E4;
  --ink: #1F2E2B;
  --ink-soft: #334A44;
  --muted: #627D75;

  --primary: #3C8471;
  --primary-dark: #255A4B;
  --primary-soft: #EBF5F1;
  --accent: #B7472A;
  --accent-soft: #FDF0ED;
  --tertiary: #C68A27;
  --tertiary-soft: #FEF9EB;

  --pri-high: #B7472A;   --pri-high-bg: #FDF0ED; --pri-high-bd: #F7D6CF;
  --pri-mid: #A56F1B;    --pri-mid-bg: #FEF9EB;  --pri-mid-bd: #FCEBC4;
  --pri-low: #52737D;    --pri-low-bg: #F0F6F7;  --pri-low-bd: #D7E6EA;

  --cat-inquiry: #2B5C68;  --cat-inquiry-bg: #EDF6F8;
  --cat-mission: #2A6150;  --cat-mission-bg: #EBF5F1;
  --cat-general: #595C75;  --cat-general-bg: #F0F1F7;
  --cat-other: #65625D;    --cat-other-bg: #F4F3F1;

  --shadow-1: 0 1px 3px rgba(31,46,43,0.05), 0 1px 2px rgba(31,46,43,0.03);
  --shadow-2: 0 4px 12px rgba(31,46,43,0.08);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --canvas: #121714;
    --canvas-2: #171D19;
    --surface: #1B2320;
    --border: #2B342F;
    --ink: #E7EFEA;
    --ink-soft: #C7D3CD;
    --muted: #93A69E;

    --primary: #4FA089;
    --primary-dark: #2F6F5C;
    --primary-soft: #1E332B;
    --accent: #E08469;
    --accent-soft: #3A2620;
    --tertiary: #D9AA5C;
    --tertiary-soft: #392E1C;

    --pri-high: #E08469;  --pri-high-bg: #3A2620; --pri-high-bd: #4E3229;
    --pri-mid: #D9AA5C;   --pri-mid-bg: #392E1C;  --pri-mid-bd: #4A3B25;
    --pri-low: #8FB6C4;   --pri-low-bg: #1F2E33;  --pri-low-bd: #2C3F45;

    --cat-inquiry: #7FB3C2; --cat-inquiry-bg: #1B2E33;
    --cat-mission: #7FC2AA; --cat-mission-bg: #1B2E27;
    --cat-general: #A9ACC4; --cat-general-bg: #232538;
    --cat-other: #B3B0A8;   --cat-other-bg: #2A2823;

    --shadow-1: 0 1px 2px rgba(0,0,0,0.35), 0 1px 3px rgba(0,0,0,0.25);
    --shadow-2: 0 4px 14px rgba(0,0,0,0.35);
  }
}
:root[data-theme="dark"] {
  --canvas: #121714; --canvas-2: #171D19; --surface: #1B2320; --border: #2B342F;
  --ink: #E7EFEA; --ink-soft: #C7D3CD; --muted: #93A69E;
  --primary: #4FA089; --primary-dark: #2F6F5C; --primary-soft: #1E332B;
  --accent: #E08469; --accent-soft: #3A2620; --tertiary: #D9AA5C; --tertiary-soft: #392E1C;
  --pri-high: #E08469; --pri-high-bg: #3A2620; --pri-high-bd: #4E3229;
  --pri-mid: #D9AA5C; --pri-mid-bg: #392E1C; --pri-mid-bd: #4A3B25;
  --pri-low: #8FB6C4; --pri-low-bg: #1F2E33; --pri-low-bd: #2C3F45;
  --cat-inquiry: #7FB3C2; --cat-inquiry-bg: #1B2E33;
  --cat-mission: #7FC2AA; --cat-mission-bg: #1B2E27;
  --cat-general: #A9ACC4; --cat-general-bg: #232538;
  --cat-other: #B3B0A8; --cat-other-bg: #2A2823;
  --shadow-1: 0 1px 2px rgba(0,0,0,0.35), 0 1px 3px rgba(0,0,0,0.25);
  --shadow-2: 0 4px 14px rgba(0,0,0,0.35);
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--canvas);
  color: var(--ink);
  font-family: "Zen Kaku Gothic New", "Hiragino Sans", "Yu Gothic", sans-serif;
  line-height: 1.6;
  padding-bottom: 76px; /* space for fixed tab bar */
}

.app { max-width: 1080px; margin: 0 auto; padding: 20px 16px 32px; }

header.top {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 12px; margin-bottom: 10px; flex-wrap: wrap;
}
header.top h1 {
  font-family: "Zen Maru Gothic", sans-serif;
  font-weight: 700; font-size: 22px; margin: 0;
  display: flex; align-items: center; gap: 8px;
  text-wrap: balance;
}
header.top h1 .mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px; border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff; font-size: 15px; font-weight: 700;
}
header.top .today { font-size: 12.5px; color: var(--muted); font-variant-numeric: tabular-nums; }

.progress-bar-wrap {
  height: 6px; border-radius: 999px; background: var(--canvas-2);
  overflow: hidden; margin-bottom: 4px;
}
.progress-bar { height: 100%; background: linear-gradient(90deg, var(--primary), var(--primary-dark)); transition: width 0.3s ease; }
.progress-label { font-size: 12px; color: var(--muted); margin-bottom: 18px; font-variant-numeric: tabular-nums; }

.main-grid { display: flex; flex-direction: column; gap: 16px; }
@media (min-width: 900px) {
  .app.state-tasks .main-grid,
  .app.state-report .main-grid {
    display: grid;
    grid-template-columns: 1.55fr 1fr;
    align-items: start;
    gap: 20px;
  }
  .app.state-tasks .main-grid #view-tasks,
  .app.state-tasks .main-grid #view-report,
  .app.state-report .main-grid #view-tasks,
  .app.state-report .main-grid #view-report {
    display: block !important;
  }
  .report-panel { position: sticky; top: 20px; }
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow-1);
}
.panel + .panel { margin-top: 16px; }
.panel-head {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
}
.panel-head.sub { border-top: 1px solid var(--border); border-bottom: none; }
.panel-head h2 {
  font-family: "Zen Maru Gothic", sans-serif;
  font-size: 14.5px; font-weight: 700; margin: 0;
}
.count-label { font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums; }
.panel-body { padding: 16px 18px 18px; }
.panel-body.top-flush { padding-top: 0; }

.field-row { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 10px; }
.field { display: flex; flex-direction: column; gap: 5px; flex: 1 1 140px; }
.field.grow { flex: 2 1 220px; }
.field label { font-size: 11px; color: var(--muted); letter-spacing: 0.04em; }

input[type="text"], input[type="date"], input[type="time"], textarea, select {
  font: inherit; color: var(--ink); background: var(--canvas);
  border: 1px solid var(--border); border-radius: 10px; padding: 9px 11px; width: 100%;
}
textarea { resize: vertical; min-height: 44px; }
input:focus, select:focus, textarea:focus, button:focus-visible {
  outline: 2px solid var(--primary); outline-offset: 1px;
}

.choice-group { display: flex; gap: 8px; flex-wrap: wrap; }
.choice-btn {
  font: inherit; font-size: 12.5px; font-weight: 700;
  border: 1px solid var(--border); background: var(--canvas); color: var(--muted);
  border-radius: 999px; padding: 7px 14px; cursor: pointer;
}
.choice-btn.selected.cat-問合せ { background: var(--cat-inquiry-bg); color: var(--cat-inquiry); border-color: var(--cat-inquiry); }
.choice-btn.selected.cat-ミッション { background: var(--cat-mission-bg); color: var(--cat-mission); border-color: var(--cat-mission); }
.choice-btn.selected.cat-一般 { background: var(--cat-general-bg); color: var(--cat-general); border-color: var(--cat-general); }
.choice-btn.selected.cat-その他 { background: var(--cat-other-bg); color: var(--cat-other); border-color: var(--cat-other); }
.choice-btn.selected.pri-高 { background: var(--pri-high-bg); color: var(--pri-high); border-color: var(--pri-high-bd); }
.choice-btn.selected.pri-中 { background: var(--pri-mid-bg); color: var(--pri-mid); border-color: var(--pri-mid-bd); }
.choice-btn.selected.pri-低 { background: var(--pri-low-bg); color: var(--pri-low); border-color: var(--pri-low-bd); }

.btn {
  font: inherit; font-weight: 700; border: none; border-radius: 10px;
  padding: 10px 18px; cursor: pointer; background: var(--primary); color: #fff;
}
.btn:hover { filter: brightness(1.05); }
.btn.ghost { background: transparent; color: var(--ink-soft); border: 1px solid var(--border); font-weight: 500; }
.btn.small { padding: 6px 12px; font-size: 12.5px; }
.form-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 6px; }
.form-actions.between { justify-content: space-between; align-items: center; }
.form-error { color: var(--accent); font-size: 12.5px; margin: 8px 0 0; }

.toolbar { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 14px; }
.seg { display: flex; background: var(--canvas-2); border-radius: 10px; padding: 3px; gap: 2px; }
.seg button {
  font: inherit; font-size: 12px; font-weight: 500; border: none; background: transparent;
  color: var(--muted); padding: 6px 11px; border-radius: 7px; cursor: pointer;
}
.seg button.active { background: var(--surface); color: var(--ink); box-shadow: var(--shadow-1); }
select.compact { width: auto; padding: 7px 9px; font-size: 12px; }

ul.todo-list, ul.history-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.todo {
  display: grid; grid-template-columns: auto 1fr auto; gap: 10px; align-items: start;
  padding: 13px; border: 1px solid var(--border); border-radius: 12px; background: var(--canvas);
}
.todo:hover { box-shadow: var(--shadow-2); }
.todo.done { opacity: 0.6; }
.todo.done .todo-title { text-decoration: line-through; }
.check { width: 21px; height: 21px; margin-top: 2px; accent-color: var(--primary); cursor: pointer; }
.todo-title { font-weight: 700; font-size: 14.5px; }
.todo-meta { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.pill { font-size: 11px; font-weight: 700; padding: 2px 9px; border-radius: 999px; letter-spacing: 0.02em; border: 1px solid transparent; }
.pill.cat-問合せ { background: var(--cat-inquiry-bg); color: var(--cat-inquiry); }
.pill.cat-ミッション { background: var(--cat-mission-bg); color: var(--cat-mission); }
.pill.cat-一般 { background: var(--cat-general-bg); color: var(--cat-general); }
.pill.cat-その他 { background: var(--cat-other-bg); color: var(--cat-other); }
.pill.pri-高 { background: var(--pri-high-bg); color: var(--pri-high); border-color: var(--pri-high-bd); }
.pill.pri-中 { background: var(--pri-mid-bg); color: var(--pri-mid); border-color: var(--pri-mid-bd); }
.pill.pri-低 { background: var(--pri-low-bg); color: var(--pri-low); border-color: var(--pri-low-bd); }
.pill.due { background: var(--canvas-2); color: var(--muted); font-variant-numeric: tabular-nums; }
.pill.done-at { background: var(--primary-soft); color: var(--primary-dark); font-variant-numeric: tabular-nums; }
.todo-memo { font-size: 12.5px; color: var(--muted); margin-top: 6px; }
.todo-actions { display: flex; flex-direction: column; gap: 6px; }
.icon-btn { border: none; background: transparent; color: var(--muted); cursor: pointer; font-size: 12px; padding: 4px 7px; border-radius: 7px; }
.icon-btn:hover { background: var(--canvas-2); color: var(--ink); }
.empty { color: var(--muted); font-size: 13px; text-align: center; padding: 26px 0; }

.report-meta { font-size: 12px; color: var(--muted); margin-bottom: 10px; }
.report-box {
  background: var(--canvas); border: 1px solid var(--border); border-radius: 12px;
  padding: 14px; font-size: 13px; white-space: pre-wrap; min-height: 160px;
}
.report-empty { color: var(--muted); }
.copy-feedback { font-size: 12px; color: var(--primary-dark); font-weight: 700; opacity: 0; transition: opacity 0.2s; }
.copy-feedback.show { opacity: 1; }

.history-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 14px; border: 1px solid var(--border); border-radius: 12px; background: var(--canvas);
  cursor: pointer; text-align: left; width: 100%; font: inherit; color: inherit;
}
.history-item:hover { box-shadow: var(--shadow-2); }
.history-item.active { border-color: var(--primary); }
.history-item .h-date { font-weight: 700; font-size: 13.5px; }
.history-item .h-count { font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums; }

.tabbar {
  position: fixed; left: 0; right: 0; bottom: 0;
  display: flex; background: var(--surface); border-top: 1px solid var(--border);
  box-shadow: 0 -2px 10px rgba(31,46,43,0.06);
  padding: 6px 10px calc(6px + env(safe-area-inset-bottom));
  gap: 6px; z-index: 10;
}
.tab-btn {
  flex: 1; display: flex; flex-direction: column; align-items: center; gap: 2px;
  border: none; background: transparent; color: var(--muted); font: inherit; font-size: 11px;
  padding: 6px 4px; border-radius: 10px; cursor: pointer;
}
.tab-btn .tab-icon { font-size: 17px; }
.tab-btn.active { color: var(--primary-dark); background: var(--primary-soft); }

@media (min-width: 900px) {
  .tabbar { max-width: 1080px; left: 50%; transform: translateX(-50%); border-radius: 16px 16px 0 0; }
}