:root {
  color-scheme: light dark;

  --bg: #f5f7fb;
  --bg-accent: #eaeffb;
  --panel: #ffffff;
  --border: #e5eaf2;
  --text: #1f2530;
  --muted: #6b7486;
  --accent: #4f6ef2;
  --accent-strong: #3b57d6;
  --danger: #d0453c;
  --done: #2f9e6b;
  --shadow-sm: 0 1px 2px rgba(20, 30, 55, 0.05);
  --shadow-md: 0 10px 30px -18px rgba(20, 30, 55, 0.45);

  /* カテゴリごとの色（アイコンの色と背景の濃淡に使う） */
  --c: #4f6ef2;
}

[data-cat="memo"]     { --c: #4f6ef2; }
[data-cat="task"]     { --c: #4f6ef2; }
[data-cat="meeting"]  { --c: #6366f1; }
[data-cat="call"]     { --c: #0d9488; }
[data-cat="mail"]     { --c: #2b7fd4; }
[data-cat="money"]    { --c: #2f9e6b; }
[data-cat="shopping"] { --c: #d6438f; }
[data-cat="schedule"] { --c: #8b5cf6; }
[data-cat="document"] { --c: #5b7089; }
[data-cat="idea"]     { --c: #d99512; }
[data-cat="travel"]   { --c: #e0722c; }
[data-cat="study"]    { --c: #0891b2; }
[data-cat="health"]   { --c: #e0526b; }
[data-cat="home"]     { --c: #7a8b3f; }
[data-cat="review"]   { --c: #7c5cf0; }
[data-cat="done"]     { --c: #2f9e6b; }

* { box-sizing: border-box; }

/* display を指定した要素でも hidden 属性が効くようにする */
[hidden] { display: none !important; }

body {
  margin: 0;
  padding: 0 20px 56px;
  font-family: "Segoe UI", "Hiragino Sans", "Yu Gothic UI", "Meiryo", sans-serif;
  background:
    radial-gradient(900px 420px at 12% -8%, var(--bg-accent), transparent 70%),
    var(--bg);
  min-height: 100vh;
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

main { max-width: 1040px; margin: 0 auto; }

/* ヘッダー ------------------------------------------------------------ */

.site-header { max-width: 1040px; margin: 0 auto; padding: 30px 0 20px; }

.brand { display: flex; align-items: center; gap: 14px; }

.brand-icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), #7b5cf0);
  box-shadow: 0 8px 18px -8px rgba(79, 110, 242, 0.8);
  flex-shrink: 0;
}

.brand-icon svg { width: 24px; height: 24px; }
.brand-text h1 { margin: 0; font-size: 1.5rem; letter-spacing: 0.01em; }
.subtitle { margin: 0; color: var(--muted); font-size: 0.86rem; }

/* 共通のアイコンチップ ------------------------------------------------ */

.chip {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 13px;
  color: var(--c);
  background: color-mix(in srgb, var(--c) 14%, transparent);
  flex-shrink: 0;
}

.chip svg { width: 21px; height: 21px; }
.chip-sm { width: 32px; height: 32px; border-radius: 10px; }
.chip-sm svg { width: 17px; height: 17px; }

/* ダッシュボード ------------------------------------------------------ */

.dashboard {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 22px;
}

.stat {
  display: flex;
  align-items: center;
  gap: 13px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px 18px;
  box-shadow: var(--shadow-sm), var(--shadow-md);
}

.stat-text { display: flex; flex-direction: column; min-width: 0; }
.stat-label { font-size: 0.78rem; color: var(--muted); letter-spacing: 0.02em; }

.stat-value {
  font-size: 1.85rem;
  font-weight: 700;
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}

.progress-card {
  grid-column: 1 / -1;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 14px 18px 16px;
  box-shadow: var(--shadow-sm);
}

.progress-head { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; }
.progress-text { font-size: 0.82rem; color: var(--muted); font-variant-numeric: tabular-nums; }

.progress-track {
  margin-top: 8px;
  height: 8px;
  border-radius: 99px;
  background: color-mix(in srgb, var(--muted) 18%, transparent);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0%;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--done), #4fc79a);
  transition: width 0.35s ease;
}

/* ダッシュボードの「最新の振り返り」 */

.latest-card {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-left: 3px solid var(--c);
  border-radius: 16px;
  padding: 15px 18px;
  box-shadow: var(--shadow-sm);
  flex-wrap: wrap;
}

/* 幅が足りないときは「振り返りを見る」が下の行に回る */
.latest-text { flex: 1 1 200px; min-width: 0; }
.latest-week { display: block; font-weight: 600; font-size: 0.95rem; }

.latest-comment {
  margin: 3px 0 0;
  font-size: 0.87rem;
  color: color-mix(in srgb, var(--text) 78%, var(--muted));
  white-space: pre-wrap;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
}

#latest-jump { flex-shrink: 0; color: var(--c); border-color: color-mix(in srgb, var(--c) 35%, transparent); }
#latest-jump:hover { background: color-mix(in srgb, var(--c) 12%, transparent); color: var(--c); }
#latest-jump span { display: grid; place-items: center; }
#latest-jump svg { width: 14px; height: 14px; }

/* メッセージ ---------------------------------------------------------- */

.message {
  margin: 0 0 18px;
  padding: 11px 15px;
  border-radius: 12px;
  background: color-mix(in srgb, var(--danger) 10%, var(--panel));
  border: 1px solid color-mix(in srgb, var(--danger) 30%, transparent);
  color: var(--danger);
  font-size: 0.88rem;
}

/* レイアウト ---------------------------------------------------------- */

.columns { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; align-items: start; }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 20px;
  box-shadow: var(--shadow-sm), var(--shadow-md);
}

.panel-head { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.panel-head h2 { margin: 0; font-size: 1.08rem; flex: 1; }

.count {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
  background: color-mix(in srgb, var(--muted) 12%, transparent);
  border-radius: 99px;
  padding: 2px 10px;
  font-variant-numeric: tabular-nums;
}

/* フォーム ------------------------------------------------------------ */

.form { display: flex; flex-direction: column; gap: 11px; margin-bottom: 20px; }
.form label { display: flex; flex-direction: column; gap: 5px; font-size: 0.82rem; color: var(--muted); }

input[type="text"], textarea {
  font: inherit;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  background: color-mix(in srgb, var(--bg) 55%, var(--panel));
  resize: vertical;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

input[type="text"]::placeholder, textarea::placeholder { color: color-mix(in srgb, var(--muted) 70%, transparent); }

input[type="text"]:focus, textarea:focus {
  outline: none;
  background: var(--panel);
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent);
}

button {
  font: inherit;
  cursor: pointer;
  border-radius: 10px;
  border: 1px solid transparent;
  padding: 9px 16px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  transition: transform 0.12s ease, box-shadow 0.15s ease, background 0.15s ease, color 0.15s ease;
}

button:active { transform: translateY(1px); }

.btn-primary {
  align-self: flex-start;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #fff;
  font-weight: 600;
  box-shadow: 0 8px 18px -10px rgba(79, 110, 242, 0.9);
}

.btn-primary:hover { box-shadow: 0 10px 22px -8px rgba(79, 110, 242, 0.9); }
.btn-icon { display: grid; place-items: center; }
.btn-icon svg { width: 16px; height: 16px; }

/* 週次の振り返り ------------------------------------------------------ */

.panel-wide { margin-top: 18px; }

.week-row { display: flex; align-items: flex-end; gap: 12px; flex-wrap: wrap; }
.week-row label { flex-shrink: 0; }

input[type="week"] {
  font: inherit;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  background: color-mix(in srgb, var(--bg) 55%, var(--panel));
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

input[type="week"]:focus {
  outline: none;
  background: var(--panel);
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent);
}

.week-label {
  padding-bottom: 10px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
}

.week-actions { display: flex; align-items: center; gap: 10px; }
.week-actions .btn-primary { align-self: auto; }

.hint {
  margin: 0;
  font-size: 0.8rem;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  border-radius: 10px;
  padding: 8px 12px;
}

/* 一覧 ---------------------------------------------------------------- */

.list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 11px; }

.card {
  display: flex;
  gap: 13px;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
  background: var(--panel);
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

.card:hover {
  border-color: color-mix(in srgb, var(--c) 40%, var(--border));
  box-shadow: 0 10px 24px -18px rgba(20, 30, 55, 0.8);
  transform: translateY(-1px);
}

.card-main { flex: 1; min-width: 0; }
.card-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; }
.card-title { font-weight: 600; word-break: break-word; }
.card-body {
  margin: 6px 0 0;
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 0.9rem;
  color: color-mix(in srgb, var(--text) 78%, var(--muted));
}

.card-meta {
  margin-top: 10px;
  font-size: 0.76rem;
  color: var(--muted);
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

.meta-item { display: inline-flex; align-items: center; gap: 4px; }
.meta-item svg { width: 13px; height: 13px; }

.tag {
  display: inline-flex;
  align-items: center;
  padding: 1px 9px;
  border-radius: 99px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--c);
  background: color-mix(in srgb, var(--c) 13%, transparent);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 1px 9px;
  border-radius: 99px;
  font-size: 0.72rem;
  font-weight: 600;
}

.badge svg { width: 12px; height: 12px; }
.badge.open { color: var(--accent); background: color-mix(in srgb, var(--accent) 13%, transparent); }
.badge.done { color: var(--done); background: color-mix(in srgb, var(--done) 15%, transparent); }

/* 完了したタスク */
.card.done { background: color-mix(in srgb, var(--done) 5%, var(--panel)); }
.card.done .chip { color: var(--done); background: color-mix(in srgb, var(--done) 14%, transparent); }
.card.done .card-title { text-decoration: line-through; color: var(--muted); }
.card.done .tag { opacity: 0.6; }

/* 操作ボタン */
.actions { display: flex; gap: 6px; flex-shrink: 0; }

.btn-small {
  padding: 5px 11px;
  font-size: 0.78rem;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
}

.btn-small svg { width: 14px; height: 14px; }
.btn-small:hover { background: color-mix(in srgb, var(--muted) 8%, transparent); color: var(--text); }
.btn-icon-only { padding: 6px; }

.btn-small.toggle { color: var(--done); border-color: color-mix(in srgb, var(--done) 35%, transparent); }
.btn-small.toggle:hover { background: color-mix(in srgb, var(--done) 12%, transparent); color: var(--done); }
.btn-small.danger:hover { background: color-mix(in srgb, var(--danger) 12%, transparent); color: var(--danger); }

/* 空の状態 */
.empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 26px 10px;
  color: var(--muted);
  font-size: 0.86rem;
  border: 1px dashed var(--border);
  border-radius: 14px;
}

.empty svg { width: 30px; height: 30px; opacity: 0.55; }

/* レスポンシブ -------------------------------------------------------- */

@media (max-width: 860px) {
  .columns { grid-template-columns: 1fr; }
  .dashboard { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px) {
  body { padding: 0 14px 40px; }
  .dashboard { grid-template-columns: 1fr; }
  .card-head { flex-direction: column; align-items: stretch; }
  .actions { justify-content: flex-end; }
  #latest-jump { margin-left: 56px; }
  .week-row { align-items: stretch; }
  .week-label { padding-bottom: 0; }
}

/* ダークモード -------------------------------------------------------- */

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12151c;
    --bg-accent: #1b2237;
    --panel: #1a1e27;
    --border: #2a3040;
    --text: #e6e9f0;
    --muted: #949cb0;
    --accent: #7b93ff;
    --accent-strong: #5f78f0;
    --danger: #f08279;
    --done: #57c795;
    --shadow-md: 0 10px 30px -20px rgba(0, 0, 0, 0.9);
  }

  [data-cat="document"] { --c: #8fa3bd; }
  [data-cat="idea"]     { --c: #f0bb4f; }
  [data-cat="home"]     { --c: #a8bd63; }
}