* {
  box-sizing: border-box;
}

:root {
  --color-bg-from: #eef1f8;
  --color-bg-to: #f6f4fb;
  --color-surface: #ffffff;
  --color-border: #e6e8f0;
  --color-text: #1f2430;
  --color-text-muted: #6b7280;
  --color-text-faint: #9aa1b1;
  --color-primary: #4f5fe0;
  --color-primary-dark: #3d4bc4;
  --color-primary-soft: #eceeff;
  --color-success: #1a9e6b;
  --color-success-soft: #e4f8ee;
  --color-danger: #d9455f;
  --color-danger-soft: #fdeaee;
  --color-warning: #e08a2c;
  --color-warning-soft: #fdf1e2;
  --color-reflection: #7b5fd9;
  --color-reflection-soft: #efeafc;
  --shadow-card: 0 1px 2px rgba(23, 26, 45, 0.04), 0 8px 20px -10px rgba(23, 26, 45, 0.12);
  --shadow-card-hover: 0 4px 10px rgba(23, 26, 45, 0.06), 0 14px 28px -12px rgba(23, 26, 45, 0.16);
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
}

html {
  min-height: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", "Hiragino Kaku Gothic ProN", "Yu Gothic UI", "Meiryo", sans-serif;
  background: linear-gradient(160deg, var(--color-bg-from) 0%, var(--color-bg-to) 55%, var(--color-bg-from) 100%);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 40px 20px 72px;
}

.app-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 32px;
}

.app-header-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-primary), #7b6ff0);
  color: #fff;
  box-shadow: 0 10px 20px -8px rgba(79, 95, 224, 0.55);
}

.app-header-icon svg {
  width: 26px;
  height: 26px;
}

.app-header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0;
  letter-spacing: 0.01em;
}

.app-subtitle {
  margin: 2px 0 0;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.error-banner {
  background: var(--color-danger-soft);
  color: var(--color-danger);
  border: 1px solid #f5c6cf;
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.dashboard {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 36px;
}

@media (max-width: 900px) {
  .dashboard {
    grid-template-columns: repeat(2, 1fr);
  }
}

.dashboard-card {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.dashboard-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
}

.dashboard-icon {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  margin-bottom: 14px;
}

.dashboard-icon svg {
  width: 18px;
  height: 18px;
}

.dashboard-icon--notes {
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.dashboard-icon--tasks {
  background: var(--color-success-soft);
  color: var(--color-success);
}

.dashboard-icon--done {
  background: var(--color-warning-soft);
  color: var(--color-warning);
}

.dashboard-icon--pending {
  background: var(--color-danger-soft);
  color: var(--color-danger);
}

.dashboard-value {
  font-size: 2.1rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-text);
  font-variant-numeric: tabular-nums;
}

.dashboard-label {
  margin-top: 4px;
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

@media (max-width: 720px) {
  .columns {
    grid-template-columns: 1fr;
  }
  .dashboard {
    grid-template-columns: 1fr;
  }
}

.column h2,
.reflection-section h2 {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0 0 14px;
  color: var(--color-text);
}

.section-icon {
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
}

.section-icon svg {
  width: 15px;
  height: 15px;
}

.section-icon--notes {
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.section-icon--tasks {
  background: var(--color-success-soft);
  color: var(--color-success);
}

.section-icon--reflection {
  background: var(--color-reflection-soft);
  color: var(--color-reflection);
}

.form-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 18px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
}

.form-card input,
.form-card textarea {
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-family: inherit;
  color: var(--color-text);
  background: #fbfbfe;
  resize: vertical;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-card input::placeholder,
.form-card textarea::placeholder {
  color: var(--color-text-faint);
}

.form-card input:focus,
.form-card textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-soft);
  background: #fff;
}

.form-card button {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  border: none;
  padding: 9px 18px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.88rem;
  font-weight: 600;
  box-shadow: 0 8px 16px -6px rgba(79, 95, 224, 0.5);
  transition: transform 0.12s ease, box-shadow 0.12s ease, filter 0.12s ease;
}

.form-card button svg {
  width: 15px;
  height: 15px;
}

.form-card button:hover {
  filter: brightness(1.05);
  transform: translateY(-1px);
  box-shadow: 0 10px 20px -6px rgba(79, 95, 224, 0.55);
}

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

.list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.item-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  box-shadow: var(--shadow-card);
  transition: transform 0.12s ease, box-shadow 0.12s ease, border-color 0.12s ease;
}

.item-card:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-card-hover);
  border-color: #d7dbea;
}

.item-title {
  font-weight: 600;
  font-size: 0.96rem;
  margin: 0 0 6px;
  word-break: break-word;
}

.item-body {
  white-space: pre-wrap;
  color: var(--color-text-muted);
  font-size: 0.88rem;
  line-height: 1.55;
  margin: 0 0 10px;
  word-break: break-word;
}

.item-meta {
  font-size: 0.76rem;
  color: var(--color-text-faint);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.item-date {
  white-space: nowrap;
}

.item-actions {
  display: flex;
  gap: 6px;
  margin-left: auto;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.status-badge--pending {
  background: var(--color-warning-soft);
  color: var(--color-warning);
}

.status-badge--done {
  background: var(--color-success-soft);
  color: var(--color-success);
}

.item-actions button {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  border: 1px solid transparent;
  background: none;
  cursor: pointer;
  font-size: 0.76rem;
  font-weight: 600;
  padding: 4px 9px;
  border-radius: 999px;
  transition: background-color 0.12s ease, border-color 0.12s ease;
}

.item-actions button svg {
  width: 13px;
  height: 13px;
}

.btn-complete {
  color: var(--color-success);
  border-color: var(--color-success-soft);
}

.btn-complete:hover {
  background: var(--color-success-soft);
}

.btn-delete {
  color: var(--color-danger);
  border-color: var(--color-danger-soft);
}

.btn-delete:hover {
  background: var(--color-danger-soft);
}

.task-card.completed {
  background: #fbfbfd;
}

.task-card.completed .item-title {
  text-decoration: line-through;
  color: var(--color-text-faint);
}

.empty {
  color: var(--color-text-faint);
  font-size: 0.85rem;
  text-align: center;
  padding: 28px 12px;
  border: 1.5px dashed var(--color-border);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.5);
}

.highlight-card {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: linear-gradient(135deg, #ffffff, var(--color-reflection-soft));
  border: 1px solid #e3ddf7;
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-card);
  margin-bottom: 36px;
}

.highlight-icon {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--color-reflection);
  color: #fff;
}

.highlight-icon svg {
  width: 19px;
  height: 19px;
}

.highlight-label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-reflection);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.highlight-week {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: 2px;
}

.highlight-comment {
  margin: 8px 0 0;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--color-text);
  white-space: pre-wrap;
  word-break: break-word;
}

.reflection-section {
  margin-top: 36px;
}

.reflection-hint {
  margin: -4px 0 2px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-reflection);
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.field-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.form-card input[type="date"] {
  align-self: flex-start;
  min-width: 170px;
}

.reflection-section .list {
  max-width: 640px;
}