* {
  box-sizing: border-box;
}

:root {
  --blue: #4f6df5;
  --blue-dark: #3b52d6;
  --violet: #8b5cf6;
  --green: #22c55e;
  --teal: #14b8a6;
  --red: #ef4444;
  --ink: #1a1d29;
  --muted: #6b7280;
  --border: #e8e9f0;
  --card-bg: #ffffff;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", "Noto Sans JP", -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--ink);
  background: #eef0f8;
  position: relative;
  overflow-x: hidden;
}

.bg-decor {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(600px circle at 8% -5%, rgba(79, 109, 245, 0.16), transparent 60%),
    radial-gradient(500px circle at 95% 10%, rgba(139, 92, 246, 0.14), transparent 55%),
    radial-gradient(700px circle at 50% 110%, rgba(239, 68, 68, 0.08), transparent 55%),
    #eef0f8;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 20px 72px;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 36px;
}

.app-icon {
  font-size: 22px;
  color: var(--blue);
}

h1 {
  text-align: center;
  margin: 0;
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(120deg, var(--ink) 20%, var(--blue) 80%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.dashboard {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 36px;
}

.dash-card {
  position: relative;
  overflow: hidden;
  background: var(--card-bg);
  border-radius: 16px;
  padding: 22px 20px;
  text-align: center;
  border: 1px solid var(--border);
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.04);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.dash-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 24px -8px rgba(16, 24, 40, 0.14);
}

.dash-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
}

.dash-card.accent-blue::before {
  background: linear-gradient(90deg, var(--blue), #7c93ff);
}

.dash-card.accent-violet::before {
  background: linear-gradient(90deg, var(--violet), #c4b5fd);
}

.dash-card.accent-green::before {
  background: linear-gradient(90deg, var(--green), #86efac);
}

.dash-card.accent-red::before {
  background: linear-gradient(90deg, var(--red), #fca5a5);
}

.dash-value {
  font-size: 34px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.dash-value.danger {
  color: var(--red);
}

.dash-value.green {
  color: var(--green);
}

.dash-label {
  margin-top: 6px;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

@media (max-width: 700px) {
  .dashboard {
    grid-template-columns: 1fr;
  }
}

.latest-reflection {
  margin-bottom: 20px;
  background: linear-gradient(135deg, rgba(20, 184, 166, 0.09), rgba(79, 109, 245, 0.06));
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px 22px;
}

.latest-reflection-label {
  font-size: 11.5px;
  font-weight: 700;
  color: var(--teal);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.latest-reflection-comment {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--ink);
  font-style: italic;
  white-space: pre-wrap;
  word-break: break-word;
}

.latest-reflection-empty {
  font-size: 13.5px;
  color: #a3a7b3;
  text-align: center;
  padding: 4px 0;
}

.calendar-wrap {
  display: flex;
  justify-content: flex-end;
  margin-top: 20px;
}

.calendar-panel {
  width: 320px;
  max-width: 100%;
}

.calendar-panel h2 {
  justify-content: center;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}

.calendar-dow {
  text-align: center;
  font-size: 11px;
  font-weight: 700;
  color: var(--muted);
  padding-bottom: 4px;
}

.calendar-dow.sun {
  color: var(--red);
}

.calendar-dow.sat {
  color: var(--blue);
}

.calendar-day {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}

.calendar-day.empty {
  visibility: hidden;
}

.calendar-day.sun {
  color: var(--red);
}

.calendar-day.sat {
  color: var(--blue);
}

.calendar-day.today {
  background: linear-gradient(135deg, var(--blue), var(--blue-dark));
  color: #fff;
  font-weight: 700;
}

.panel {
  background: var(--card-bg);
  border-radius: 18px;
  padding: 22px;
  border: 1px solid var(--border);
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.04);
}

.panel h2 {
  margin: 0 0 16px;
  font-size: 15px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--ink);
}

.panel-icon {
  font-size: 16px;
}

.form {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 22px;
}

.form input,
.form textarea {
  padding: 11px 14px;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  font-size: 14px;
  font-family: inherit;
  background: #fafafd;
  resize: vertical;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.form input:focus,
.form textarea:focus {
  outline: none;
  border-color: var(--blue);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(79, 109, 245, 0.12);
}

.form button {
  align-self: flex-start;
  padding: 10px 22px;
  background: linear-gradient(135deg, var(--blue), var(--blue-dark));
  color: #fff;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: 0.01em;
  box-shadow: 0 4px 12px -3px rgba(79, 109, 245, 0.45);
  transition: transform 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
}

.form button:hover {
  transform: translateY(-1px);
  filter: brightness(1.06);
  box-shadow: 0 6px 16px -3px rgba(79, 109, 245, 0.55);
}

.form button:active {
  transform: translateY(0);
}

.list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 420px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: #d3d7e6 transparent;
}

.list::-webkit-scrollbar {
  width: 6px;
}

.list::-webkit-scrollbar-thumb {
  background: #d3d7e6;
  border-radius: 6px;
}

.item {
  border: 1px solid var(--border);
  border-left: 3px solid var(--blue);
  border-radius: 10px;
  padding: 12px 14px;
  background: #fbfbfe;
  transition: box-shadow 0.15s ease, transform 0.15s ease, border-color 0.15s ease;
}

.item:hover {
  box-shadow: 0 4px 14px -6px rgba(16, 24, 40, 0.18);
  transform: translateY(-1px);
}

.item-title {
  font-weight: 600;
  font-size: 14px;
  word-break: break-word;
}

.item-body {
  margin-top: 4px;
  font-size: 13.5px;
  color: #555;
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.5;
}

.item-meta {
  margin-top: 8px;
  font-size: 11.5px;
  color: #9aa0ac;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-variant-numeric: tabular-nums;
}

.task-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  border-left-color: var(--violet);
}

.reflection-item {
  border-left-color: var(--teal);
}

.task-item.completed {
  border-left-color: #d1d5db;
  background: #f7f7fb;
}

.task-item.completed .item-title {
  text-decoration: line-through;
  color: #a3a7b3;
}

.task-item input[type="checkbox"] {
  margin-top: 3px;
  width: 17px;
  height: 17px;
  accent-color: var(--violet);
  cursor: pointer;
  flex-shrink: 0;
}

.task-main {
  flex: 1;
  min-width: 0;
}

.task-actions {
  display: flex;
  gap: 8px;
}

.icon-btn {
  border: none;
  background: none;
  cursor: pointer;
  font-size: 12.5px;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 8px;
  transition: background 0.15s ease, color 0.15s ease;
}

.icon-btn.delete {
  color: var(--red);
}

.icon-btn.delete:hover {
  background: #fee2e2;
}

.empty {
  color: #a3a7b3;
  font-size: 13.5px;
  text-align: center;
  padding: 20px 0;
}