:root {
  --color-bg: #f4f5f7;
  --color-panel: #ffffff;
  --color-border: #e1e4e8;
  --color-text: #1f2328;
  --color-text-muted: #6b7280;
  --color-primary: #2563eb;
  --color-primary-light: #dbeafe;
  --color-danger: #dc2626;
  --color-success: #16a34a;
  --color-now: #fff7ed;
  --color-now-border: #f97316;
  --radius: 8px;
  --slot-height: 44px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
}

/* ---------- Header stats ---------- */
.stats-bar {
  display: flex;
  gap: 24px;
  padding: 16px 24px;
  background: var(--color-panel);
  border-bottom: 1px solid var(--color-border);
  flex-wrap: wrap;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 90px;
}

.stat-label {
  font-size: 12px;
  color: var(--color-text-muted);
}

.stat-value {
  font-size: 22px;
  font-weight: 700;
}

#stat-rate {
  color: var(--color-primary);
}

/* ---------- Layout ---------- */
.layout {
  display: flex;
  gap: 20px;
  padding: 20px;
  align-items: flex-start;
}

.schedule-panel {
  flex: 3;
  min-width: 0;
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px;
}

.task-panel {
  flex: 2;
  min-width: 280px;
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px;
}

.panel-title {
  margin: 0 0 12px;
  font-size: 16px;
  font-weight: 700;
}

/* ---------- Schedule grid ---------- */
.schedule-settings {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}

.schedule-settings label {
  font-size: 13px;
  color: var(--color-text-muted);
}

.schedule-settings span {
  color: var(--color-text-muted);
}

.schedule-settings select {
  padding: 6px 8px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 13px;
}

.schedule-head {
  display: flex;
  margin-bottom: 2px;
}

.schedule-head-spacer {
  width: 64px;
  flex-shrink: 0;
}

.schedule-head-label {
  flex: 1;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-text-muted);
  padding: 0 4px 4px;
}

.schedule-head-hint {
  font-weight: 400;
  font-size: 11px;
  margin-left: 4px;
}

.schedule-grid {
  display: flex;
  border-top: 1px solid var(--color-border);
}

.time-col {
  display: grid;
  grid-template-rows: repeat(18, var(--slot-height));
  width: 64px;
  flex-shrink: 0;
}

.time-label {
  display: flex;
  align-items: flex-start;
  justify-content: flex-end;
  padding-right: 8px;
  font-size: 12px;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border);
  transform: translateY(-7px);
}

.plan-col,
.actual-col {
  flex: 1;
  display: grid;
  grid-template-rows: repeat(18, var(--slot-height));
  position: relative;
  min-width: 0;
}

.actual-col {
  border-left: 1px solid var(--color-border);
}

.slot-empty {
  grid-column: 1;
  border-bottom: 1px solid var(--color-border);
  border-left: 2px solid transparent;
  cursor: pointer;
  transition: background 0.1s ease;
}

.slot-empty:hover {
  background: var(--color-primary-light);
}

.slot-empty.is-now {
  background: var(--color-now);
}

.slot-empty.non-interactive {
  cursor: default;
}

.slot-empty.non-interactive:hover {
  background: none;
}

.block {
  grid-column: 1;
  margin: 2px 0;
  padding: 4px 10px;
  border-radius: 6px;
  background: var(--color-primary-light);
  border-left: 4px solid var(--color-primary);
  cursor: pointer;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1px;
}

.block-plan-text,
.block-time-text {
  flex-shrink: 0;
  line-height: 1.25;
}

.block:hover {
  filter: brightness(0.97);
}

.block.is-now {
  outline: 2px solid var(--color-now-border);
  outline-offset: -2px;
}

.block-ghost {
  grid-column: 1;
  background: repeating-linear-gradient(
    135deg,
    #f3f4f6,
    #f3f4f6 6px,
    #e9eaec 6px,
    #e9eaec 12px
  );
  border-left-style: dashed;
  border-left-color: var(--color-text-muted);
  cursor: default;
  opacity: 0.85;
  pointer-events: none;
}

.block-ghost .block-plan-text {
  text-decoration: line-through;
  color: var(--color-text-muted);
  font-weight: 600;
}

.block-ghost .block-time-text {
  color: var(--color-text-muted);
}

.block-actual {
  background: #dcfce7;
  border-left-color: var(--color-success);
}

.block-plan-text {
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.block-time-text {
  font-size: 11px;
  color: var(--color-text-muted);
}

/* ---------- Task panel ---------- */
.task-add-form {
  display: flex;
  gap: 6px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.task-add-form input[type="text"] {
  flex: 1;
  min-width: 120px;
  padding: 8px 10px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 14px;
}

.task-add-form select {
  padding: 8px 6px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 14px;
}

.task-add-form button {
  padding: 8px 14px;
  border: none;
  border-radius: 6px;
  background: var(--color-primary);
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}

.task-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.task-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
}

.task-item.completed {
  background: #f9fafb;
}

.task-item.completed .task-name {
  text-decoration: line-through;
  color: var(--color-text-muted);
}

.task-checkbox {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  cursor: pointer;
}

.task-name {
  flex: 1;
  font-size: 14px;
  overflow-wrap: anywhere;
}

.task-duration {
  font-size: 12px;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.task-status {
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}

.task-status.done {
  color: var(--color-success);
}

.task-status.pending {
  color: var(--color-text-muted);
}

.task-delete-btn {
  border: none;
  background: none;
  color: var(--color-text-muted);
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  padding: 2px 4px;
}

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

.empty-hint {
  color: var(--color-text-muted);
  font-size: 13px;
  padding: 8px 0;
}

/* ---------- Modal ---------- */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 100;
}

.modal-overlay.open {
  display: flex;
}

.modal {
  background: #fff;
  border-radius: var(--radius);
  padding: 20px;
  width: 100%;
  max-width: 420px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal h3 {
  margin: 0 0 14px;
}

.modal h4 {
  margin: 10px 0 8px;
  font-size: 13px;
  color: var(--color-text-muted);
}

.modal hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 14px 0 0;
}

.form-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.form-row label {
  font-size: 13px;
  color: var(--color-text-muted);
  min-width: 40px;
}

.form-row input[type="text"],
.form-row select {
  flex: 1;
  min-width: 90px;
  padding: 8px 10px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 14px;
}

.original-info {
  font-size: 12px;
  color: #b45309;
  background: #fffbeb;
  border-radius: 6px;
  padding: 8px 10px;
  margin-bottom: 4px;
  display: none;
}

.original-info.visible {
  display: block;
}

.modal-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 18px;
  gap: 8px;
}

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

.modal-actions button {
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 14px;
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border: none;
}

.btn-secondary {
  background: #fff;
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.btn-danger {
  background: #fff;
  border: 1px solid var(--color-danger);
  color: var(--color-danger);
}

.btn-danger:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .layout {
    flex-direction: column;
    padding: 12px;
  }

  .schedule-panel,
  .task-panel {
    flex: none;
    width: 100%;
    min-width: 0;
  }

  .stats-bar {
    padding: 12px;
    gap: 16px;
  }

  .stat-value {
    font-size: 18px;
  }

  :root {
    --slot-height: 44px;
  }

  .time-col,
  .schedule-head-spacer {
    width: 44px;
  }

  .time-label {
    font-size: 10px;
    padding-right: 4px;
  }

  .schedule-head-hint {
    display: none;
  }

  .block {
    padding: 3px 6px;
  }

  .block-plan-text {
    font-size: 12px;
  }

  .block-time-text {
    font-size: 10px;
  }
}