:root {
  --bg: #f4f6fb;
  --card: #ffffff;
  --ink: #1f2933;
  --muted: #7b8794;
  --accent: #4f6df5;
  --accent-dark: #3b53c4;
  --danger: #e5484d;
  --ok: #2fa36b;
  --warn: #f0a020;
  --border: #e4e8f0;
  --shadow: 0 2px 10px rgba(31, 41, 51, 0.06);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP",
    "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
}

.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 32px 20px 64px;
}

.container.narrow {
  max-width: 520px;
}

header h1 {
  margin: 0;
  font-size: 1.8rem;
}

.app-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
}

.brand {
  color: inherit;
  text-decoration: none;
}

/* タブナビゲーション */
.tabs {
  display: flex;
  gap: 4px;
  margin-top: 18px;
  border-bottom: 1px solid var(--border);
}

.tab {
  padding: 10px 18px;
  text-decoration: none;
  color: var(--muted);
  font-weight: 600;
  font-size: 0.95rem;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}

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

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

/* アップロード・候補テーブル */
.upload-form {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 8px;
}

.cand-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
}

.cand-table th,
.cand-table td {
  padding: 8px;
  border-bottom: 1px solid var(--border);
  text-align: left;
}

.cand-table th {
  font-size: 0.8rem;
  color: var(--muted);
}

.cand-table input[type="text"] {
  width: 100%;
}

.price-input {
  width: 90px;
}

.user-box {
  display: flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
}

.avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--border);
}

.avatar-fallback {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
}

.btn.google {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.google-icon,
.gmail-icon {
  vertical-align: middle;
}

.gmail h2 {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* カレンダー */
.cal-head {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 12px;
}

#cal-title {
  font-weight: 700;
  font-size: 1.05rem;
  min-width: 130px;
  text-align: center;
}

.cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
}

.cal-wd {
  text-align: center;
  font-size: 0.75rem;
  color: var(--muted);
  padding: 4px 0;
}

.cal-wd.sun {
  color: var(--danger);
}

.cal-wd.sat {
  color: var(--accent);
}

.cal-cell {
  position: relative;
  min-height: 44px;
  border-radius: 8px;
  padding: 4px;
  background: #f7f8fc;
}

.cal-cell.empty {
  background: transparent;
}

.cal-cell .d {
  font-size: 0.8rem;
  color: var(--ink);
}

.cal-cell.today {
  outline: 2px solid var(--accent);
}

.cal-cell.has-renewal {
  background: #fff2e0;
  cursor: pointer;
}

.cal-cell.has-renewal .d {
  color: var(--warn);
  font-weight: 700;
}

.cal-cell.selected {
  background: var(--warn);
}

.cal-cell.selected .d,
.cal-cell.selected .dot {
  color: #fff;
}

.cal-cell .dot {
  position: absolute;
  right: 4px;
  bottom: 4px;
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--warn);
  background: #fff;
  border-radius: 999px;
  padding: 0 5px;
}

.cal-detail {
  margin-top: 16px;
  border-top: 1px solid var(--border);
  padding-top: 14px;
}

.cal-detail h3 {
  margin: 0 0 8px;
  font-size: 1rem;
}

.cal-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.cal-list li {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
}

.cal-sum {
  text-align: right;
  font-weight: 700;
  margin: 10px 0 0;
}

/* ログイン画面 */
.login {
  text-align: center;
  margin-top: 60px;
  padding: 36px 24px;
}

.login .sub {
  color: var(--muted);
  margin-top: 4px;
}

.btn.google {
  margin: 18px 0 10px;
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.btn.google:hover {
  background: #f3f5fb;
}

.note-small {
  font-size: 0.8rem;
  max-width: 360px;
  margin: 8px auto 0;
}

header .sub {
  margin: 4px 0 0;
  color: var(--muted);
}

h2 {
  font-size: 1.1rem;
  margin: 0 0 12px;
}

section {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
  margin-top: 20px;
  box-shadow: var(--shadow);
}

/* 合計サマリー */
.summary {
  display: flex;
  gap: 20px;
}

.summary-total,
.summary-count {
  flex: 1;
}

.summary .label {
  display: block;
  color: var(--muted);
  font-size: 0.85rem;
}

.summary .amount {
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--accent);
}

.summary .amount small {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--muted);
}

.summary-count .amount {
  color: var(--ink);
}

/* 更新通知 */
.notice {
  border-left: 4px solid var(--warn);
}

.notice ul {
  margin: 0;
  padding-left: 18px;
}

.notice .days,
.notice .today {
  font-weight: 700;
  color: var(--warn);
}

.notice .overdue {
  font-weight: 700;
  color: var(--danger);
}

/* 一覧テーブル */
table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 10px 8px;
  border-bottom: 1px solid var(--border);
  text-align: left;
}

th {
  font-size: 0.8rem;
  color: var(--muted);
  font-weight: 600;
}

.right {
  text-align: right;
}

tr.inactive td {
  color: var(--muted);
  text-decoration: line-through;
}

.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge.active {
  background: #e3f5ec;
  color: var(--ok);
}

.badge.stopped {
  background: #eef0f4;
  color: var(--muted);
}

.actions {
  white-space: nowrap;
}

.actions form {
  display: inline;
}

.empty {
  color: var(--muted);
}

.check {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  background: #fff2e0;
  color: var(--warn);
}

/* フォーム */
.add-form {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: end;
}

.add-form label {
  display: flex;
  flex-direction: column;
  font-size: 0.85rem;
  color: var(--muted);
  gap: 4px;
  flex: 1;
  min-width: 140px;
}

input {
  padding: 9px 11px;
  border: 1px solid var(--border);
  border-radius: 9px;
  font-size: 1rem;
  color: var(--ink);
  background: #fff;
}

input:focus {
  outline: none;
  border-color: var(--accent);
}

/* ボタン */
.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 9px;
  padding: 10px 18px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}

.btn:hover {
  background: var(--accent-dark);
}

.btn.small {
  padding: 5px 12px;
  font-size: 0.8rem;
}

.btn.ghost {
  background: #eef1f8;
  color: var(--accent-dark);
}

.btn.ghost:hover {
  background: #e2e7f5;
}

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

.btn.danger:hover {
  background: #f9d9da;
}

.row {
  display: flex;
  gap: 10px;
}

.flash {
  margin-top: 20px;
  padding: 12px 16px;
  background: #fff7e6;
  border: 1px solid #f6d98a;
  border-radius: 10px;
  color: #8a6d1a;
}

.muted {
  color: var(--muted);
  font-size: 0.9rem;
}

footer {
  margin-top: 28px;
  text-align: center;
}