/* =============================================================================
   cclog — スタイルシート
   ダークテーマ・スマホファースト
   ============================================================================= */

/* --- リセット & ベース ---------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* 背景 */
  --bg-0: #09090b;
  --bg-1: #111114;
  --bg-2: #1a1a20;
  --bg-3: #242430;

  /* テキスト */
  --text-0: #fafafa;
  --text-1: #d4d4d8;
  --text-2: #a1a1aa;
  --text-3: #71717a;

  /* ボーダー */
  --border: #27272a;
  --border-hover: #3f3f46;

  /* アクセント (indigo) */
  --accent: #818cf8;
  --accent-dim: #6366f1;
  --accent-glow: rgba(99, 102, 241, 0.25);

  /* セマンティック */
  --success: #4ade80;
  --success-bg: rgba(74, 222, 128, 0.1);
  --warning: #fbbf24;
  --warning-bg: rgba(251, 191, 36, 0.1);
  --error: #f87171;
  --error-bg: rgba(248, 113, 113, 0.1);
  --danger: #ef4444;
  --danger-bg: rgba(239, 68, 68, 0.12);

  /* レイアウト */
  --radius: 12px;
  --radius-sm: 8px;
  --max-width: 540px;

  /* トランジション */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    sans-serif;
  background: var(--bg-0);
  color: var(--text-1);
  line-height: 1.6;
  min-height: 100dvh;
  -webkit-font-smoothing: antialiased;
}

/* --- レイアウト ----------------------------------------------------------- */
.app {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1rem 4rem;
}

/* --- ヘッダー ------------------------------------------------------------- */
.app-header {
  padding: 1.25rem 0 0.75rem;
  text-align: center;
}

.app-header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-0);
  letter-spacing: -0.02em;
}

/* --- タブ ----------------------------------------------------------------- */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1.25rem;
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-0);
  padding-top: 0.25rem;
}

.tab {
  flex: 1;
  padding: 0.75rem 0.25rem;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-3);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
  font-family: inherit;
  white-space: nowrap;
}

.tab:hover {
  color: var(--text-2);
}

.tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* --- タブパネル ----------------------------------------------------------- */
.tab-panel {
  display: none;
  animation: fadeIn 0.25s var(--ease);
}

.tab-panel.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* --- フォーム ------------------------------------------------------------- */
.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-2);
  margin-bottom: 0.375rem;
}

.form-row-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

input[type="text"],
textarea,
select {
  width: 100%;
  padding: 0.75rem 0.875rem;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-0);
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
  appearance: none;
  -webkit-appearance: none;
}

input[type="text"]:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--accent-dim);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

textarea {
  resize: vertical;
  min-height: 100px;
}

/* セレクトの矢印 */
select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M3 5l3 3 3-3' fill='none' stroke='%23a1a1aa' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2.25rem;
}

/* --- ボタン --------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.15s var(--ease);
  min-height: 48px;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-dim), #7c3aed);
  color: #fff;
}

.btn-primary:hover {
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn-secondary {
  background: var(--bg-3);
  color: var(--text-1);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--border-hover);
  background: var(--bg-2);
}

.btn-danger {
  background: var(--danger);
  color: #fff;
}

.btn-danger:hover {
  background: #dc2626;
}

.btn-sm {
  padding: 0.4rem 0.75rem;
  font-size: 0.8125rem;
  min-height: 32px;
}

.btn-block {
  display: flex;
  width: 100%;
}

/* --- セクション ----------------------------------------------------------- */
.section-divider {
  height: 1px;
  background: var(--border);
  margin: 1.5rem 0;
}

.section-header {
  margin-bottom: 0.75rem;
}

.section-header h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-0);
}

.section-header h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-1);
  margin-bottom: 0.5rem;
}

.section-caption {
  font-size: 0.8125rem;
  color: var(--text-3);
  margin-top: 0.25rem;
}

/* --- メトリクスカード ----------------------------------------------------- */
.period-selector {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.select-inline {
  padding: 0.5rem 2rem 0.5rem 0.75rem;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-0);
  font-size: 0.875rem;
  font-family: inherit;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M3 5l3 3 3-3' fill='none' stroke='%23a1a1aa' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.5rem center;
}

.select-inline:focus {
  outline: none;
  border-color: var(--accent-dim);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.select-grow {
  flex: 1;
  min-width: 0;
}

.metrics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.metric-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.metric-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.metric-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-0);
  letter-spacing: -0.02em;
}

.metric-caption {
  font-size: 0.8125rem;
  color: var(--text-3);
  margin-bottom: 1.25rem;
}

/* --- チャート ------------------------------------------------------------- */
.chart-container {
  position: relative;
  height: 220px;
  margin-bottom: 0.5rem;
}

/* --- テーブル ------------------------------------------------------------- */
.data-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
}

.data-table th {
  text-align: left;
  padding: 0.5rem 0.625rem;
  color: var(--text-3);
  font-weight: 500;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.data-table td {
  padding: 0.5rem 0.625rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-1);
  white-space: nowrap;
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table .col-amount {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

/* --- エントリーリスト（入力タブ / ツール） --------------------------------- */
.entry-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.entry-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.625rem 0;
  border-bottom: 1px solid var(--border);
  animation: fadeIn 0.2s var(--ease);
}

.entry-item:last-child {
  border-bottom: none;
}

.entry-info {
  flex: 1;
  min-width: 0;
}

.entry-main {
  font-size: 0.875rem;
  color: var(--text-1);
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  align-items: baseline;
}

.entry-date {
  color: var(--text-3);
  font-variant-numeric: tabular-nums;
}

.entry-store {
  color: var(--text-1);
}

.entry-amount {
  color: var(--text-0);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.entry-memo {
  font-size: 0.75rem;
  color: var(--text-3);
  margin-top: 0.125rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.entry-actions .btn {
  padding: 0.25rem 0.625rem;
  font-size: 0.75rem;
  min-height: 28px;
}

/* --- 空状態 --------------------------------------------------------------- */
.empty-state {
  text-align: center;
  color: var(--text-3);
  font-size: 0.875rem;
  padding: 2rem 0;
}

/* --- プロンプト（ツールタブ） ---------------------------------------------- */
.prompt-details {
  margin-bottom: 1rem;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.prompt-details summary {
  padding: 0.625rem 0.875rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-2);
  cursor: pointer;
  user-select: none;
}

.prompt-details summary:hover {
  color: var(--text-0);
}

.prompt-code {
  background: var(--bg-1);
  color: var(--text-1);
  padding: 0.75rem 0.875rem;
  font-size: 0.8125rem;
  line-height: 1.6;
  font-family: "SF Mono", "Fira Code", monospace;
  white-space: pre-wrap;
  word-break: break-all;
  border-top: 1px solid var(--border);
}

.prompt-details .btn {
  margin: 0.5rem 0.875rem 0.75rem;
}

/* --- CSVプレビュー -------------------------------------------------------- */
#csv-preview {
  margin: 1rem 0;
}

#csv-preview .btn-block {
  margin-top: 0.75rem;
}

.load-more-container {
  margin-top: 1rem;
  padding-bottom: 2rem;
}

/* --- トースト ------------------------------------------------------------- */
#toast-container {
  position: fixed;
  top: 0.75rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  width: calc(100% - 2rem);
  max-width: var(--max-width);
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  animation: toastIn 0.3s var(--ease), toastOut 0.3s var(--ease) 2.7s forwards;
  pointer-events: auto;
}

.toast-success {
  background: var(--success-bg);
  color: var(--success);
  border: 1px solid rgba(74, 222, 128, 0.2);
}

.toast-error {
  background: var(--error-bg);
  color: var(--error);
  border: 1px solid rgba(248, 113, 113, 0.2);
}

.toast-warning {
  background: var(--warning-bg);
  color: var(--warning);
  border: 1px solid rgba(251, 191, 36, 0.2);
}

@keyframes toastIn {
  from { opacity: 0; transform: translateY(-12px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes toastOut {
  from { opacity: 1; transform: translateY(0); }
  to   { opacity: 0; transform: translateY(-12px); }
}

/* --- モーダル ------------------------------------------------------------- */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9000;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

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

.modal-dialog {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  max-width: 360px;
  width: 100%;
  animation: fadeIn 0.2s var(--ease);
}

.modal-message {
  font-size: 0.9375rem;
  color: var(--text-1);
  margin-bottom: 1.25rem;
  line-height: 1.5;
}

.modal-actions {
  display: flex;
  gap: 0.75rem;
}

.modal-actions .btn {
  flex: 1;
}

/* --- flatpickr カスタマイズ ------------------------------------------------ */
.flatpickr-calendar {
  background: var(--bg-2) !important;
  border-color: var(--border) !important;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5) !important;
  border-radius: var(--radius) !important;
  font-family: "Inter", sans-serif !important;
}

.flatpickr-months .flatpickr-month {
  background: var(--bg-2) !important;
  color: var(--text-0) !important;
}

.flatpickr-current-month .flatpickr-monthDropdown-months {
  background: var(--bg-2) !important;
  color: var(--text-0) !important;
}

.flatpickr-current-month input.cur-year {
  color: var(--text-0) !important;
}

span.flatpickr-weekday {
  color: var(--text-3) !important;
  font-weight: 500 !important;
}

.flatpickr-day {
  color: var(--text-1) !important;
  border-radius: 8px !important;
}

.flatpickr-day:hover {
  background: var(--bg-3) !important;
  border-color: var(--bg-3) !important;
}

.flatpickr-day.today {
  border-color: var(--accent-dim) !important;
}

.flatpickr-day.selected {
  background: var(--accent-dim) !important;
  border-color: var(--accent-dim) !important;
  color: #fff !important;
}

.flatpickr-day.prevMonthDay,
.flatpickr-day.nextMonthDay {
  color: var(--text-3) !important;
}

/* --- ローディング --------------------------------------------------------- */
.loading {
  opacity: 0.5;
  pointer-events: none;
}

/* --- レスポンシブ --------------------------------------------------------- */
@media (max-width: 380px) {
  .form-row-2col {
    grid-template-columns: 1fr;
  }

  .metric-value {
    font-size: 1.25rem;
  }
}

@media (min-width: 768px) {
  .app {
    padding-top: 1rem;
  }

  .chart-container {
    height: 280px;
  }
}