/* hauyun 帳務系統：手機優先的設計系統。
 * 顏色一律用 token；頁面不寫 inline 顏色，深色模式才會跟著切換。
 * 元件：.card .btn .field .table .badge .flash .bank-card .stat .progress .list .tabbar
 */

:root {
  --c-bg: #f4f6f9;
  --c-surface: #ffffff;
  --c-surface-2: #f8fafc;
  --c-text: #17202b;
  --c-muted: #5f6b7a;
  --c-border: #dde3ea;
  --c-primary: #1a3d6d;
  --c-primary-hover: #234f8c;
  --c-primary-soft: #e6eef8;
  --c-on-primary: #ffffff;
  --c-accent: #c8102e;
  --c-success: #1d7a46;
  --c-success-soft: #e3f4ea;
  --c-warning: #9a6200;
  --c-warning-soft: #fff4dc;
  --c-danger: #b42318;
  --c-danger-soft: #fdecea;
  --c-info: #1f5fa8;
  --c-info-soft: #e7f0fb;
  --c-neutral-soft: #eef1f5;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.06), 0 1px 3px rgba(16, 24, 40, 0.08);
  --gap: 16px;
  --tabbar-h: 60px;
  --font: -apple-system, BlinkMacSystemFont, "PingFang TC", "Noto Sans TC", "Microsoft JhengHei",
    "Segoe UI", Roboto, sans-serif;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --c-bg: #0f141b;
    --c-surface: #161d26;
    --c-surface-2: #1b2430;
    --c-text: #e6ebf1;
    --c-muted: #9aa7b6;
    --c-border: #2a3543;
    --c-primary: #6fa3e6;
    --c-primary-hover: #8db8f0;
    --c-primary-soft: #1d2c40;
    --c-on-primary: #0b1420;
    --c-success: #5cc98b;
    --c-success-soft: #173325;
    --c-warning: #f0b44c;
    --c-warning-soft: #3a2c10;
    --c-danger: #f2877d;
    --c-danger-soft: #3d1c19;
    --c-info: #7fb3f0;
    --c-info-soft: #172a40;
    --c-neutral-soft: #232d3a;
    --shadow: none;
    color-scheme: dark;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

/* hidden 屬性一律隱藏，不被元件的 display 規則蓋掉（例如 .receipt-preview）。 */
[hidden] {
  display: none !important;
}

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

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.55;
  color: var(--c-text);
  background: var(--c-bg);
  padding-bottom: calc(var(--tabbar-h) + env(safe-area-inset-bottom) + 16px);
}

body.no-tabbar {
  padding-bottom: calc(env(safe-area-inset-bottom) + 24px);
}

a {
  color: var(--c-primary);
}

h1,
h2,
h3 {
  line-height: 1.3;
  margin: 0 0 12px;
}

h1 {
  font-size: 1.4rem;
}

h2 {
  font-size: 1.15rem;
}

h3 {
  font-size: 1rem;
}

p {
  margin: 0 0 12px;
}

img {
  max-width: 100%;
}

/* ---------- 版面 ---------- */

.app-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: calc(env(safe-area-inset-top) + 10px) 16px 10px;
  background: var(--c-primary);
  color: var(--c-on-primary);
}

.app-header .brand {
  color: inherit;
  font-weight: 700;
  text-decoration: none;
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.app-header .who {
  font-size: 0.875rem;
  opacity: 0.9;
}

.app-header form {
  margin: 0;
}

.app-header .btn-ghost {
  color: var(--c-on-primary);
  border-color: rgba(255, 255, 255, 0.4);
}

.container {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 16px;
}

.container.narrow {
  max-width: 560px;
}

.page-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 12px;
  margin-bottom: 16px;
}

.page-head h1 {
  margin: 0;
}

.page-head .actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.breadcrumb {
  font-size: 0.875rem;
  color: var(--c-muted);
  margin-bottom: 8px;
}

.breadcrumb a {
  color: var(--c-muted);
}

.stack > * + * {
  margin-top: var(--gap);
}

.row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
}

.row.between {
  justify-content: space-between;
}

.grid {
  display: grid;
  gap: var(--gap);
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.grid-2 {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

@media (max-width: 480px) {
  .grid-2.stack-sm {
    grid-template-columns: 1fr;
  }
}

/* ---------- 管理導覽 ---------- */

.admin-nav {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 10px 16px;
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-border);
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.admin-nav::-webkit-scrollbar {
  display: none;
}

.admin-nav a {
  flex: none;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.875rem;
  color: var(--c-muted);
  text-decoration: none;
  background: var(--c-neutral-soft);
}

.admin-nav a.active {
  background: var(--c-primary);
  color: var(--c-on-primary);
}

/* ---------- 底部分頁列（球員） ---------- */

.tabbar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 30;
  display: flex;
  height: calc(var(--tabbar-h) + env(safe-area-inset-bottom));
  padding-bottom: env(safe-area-inset-bottom);
  background: var(--c-surface);
  border-top: 1px solid var(--c-border);
}

.tabbar a {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  font-size: 0.75rem;
  color: var(--c-muted);
  text-decoration: none;
}

.tabbar a .icon {
  font-size: 1.25rem;
  line-height: 1;
}

.tabbar a.active {
  color: var(--c-primary);
  font-weight: 600;
}

/* ---------- 卡片 ---------- */

.card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
}

.card + .card {
  margin-top: var(--gap);
}

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 12px;
}

.card-head h2,
.card-head h3 {
  margin: 0;
}

.card-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.card.muted-card {
  background: var(--c-surface-2);
  box-shadow: none;
}

/* ---------- 按鈕 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 44px;
  padding: 8px 16px;
  font: inherit;
  font-weight: 600;
  line-height: 1.2;
  border-radius: var(--radius-sm);
  border: 1px solid var(--c-border);
  background: var(--c-surface);
  color: var(--c-text);
  text-decoration: none;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.btn:hover {
  border-color: var(--c-primary);
}

.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.5;
  pointer-events: none;
}

.btn-primary {
  background: var(--c-primary);
  border-color: var(--c-primary);
  color: var(--c-on-primary);
}

.btn-primary:hover {
  background: var(--c-primary-hover);
  border-color: var(--c-primary-hover);
}

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

.btn-success {
  background: var(--c-success);
  border-color: var(--c-success);
  color: #fff;
}

.btn-line {
  background: #06c755;
  border-color: #06c755;
  color: #fff;
}

.btn-ghost {
  background: transparent;
}

.btn-sm {
  min-height: 34px;
  padding: 4px 10px;
  font-size: 0.875rem;
}

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

.inline-form {
  display: inline;
  margin: 0;
}

/* ---------- 表單 ---------- */

.form {
  display: grid;
  gap: 14px;
}

.field {
  display: grid;
  gap: 6px;
}

.field > label,
.field-label {
  font-weight: 600;
  font-size: 0.9375rem;
}

.field .required::after {
  content: " *";
  color: var(--c-danger);
}

input[type="text"],
input[type="tel"],
input[type="number"],
input[type="date"],
input[type="email"],
input[type="search"],
input[type="url"],
input:not([type]),
select,
textarea {
  width: 100%;
  min-height: 44px;
  padding: 10px 12px;
  font: inherit;
  font-size: 16px; /* iOS 小於 16px 會自動放大畫面 */
  color: var(--c-text);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
}

textarea {
  min-height: 88px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid var(--c-primary);
  outline-offset: 1px;
  border-color: var(--c-primary);
}

input[type="file"] {
  font: inherit;
  max-width: 100%;
}

.hint {
  font-size: 0.8125rem;
  color: var(--c-muted);
}

.field-error {
  font-size: 0.8125rem;
  color: var(--c-danger);
}

.check {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 36px;
  font-weight: 400;
}

.check input {
  width: 20px;
  height: 20px;
  accent-color: var(--c-primary);
}

.checks {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
}

fieldset {
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  padding: 12px;
  margin: 0;
}

legend {
  padding: 0 6px;
  font-weight: 600;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

/* ---------- 表格 ---------- */

.table-wrap {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  background: var(--c-surface);
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.table th,
.table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--c-border);
  vertical-align: middle;
  white-space: nowrap;
}

.table td.wrap,
.table th.wrap {
  white-space: normal;
  min-width: 160px;
}

.table thead th {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--c-muted);
  background: var(--c-surface-2);
}

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

.table tfoot td {
  font-weight: 700;
  background: var(--c-surface-2);
  border-top: 1px solid var(--c-border);
  border-bottom: none;
}

.table tr.is-muted td {
  color: var(--c-muted);
}

.num,
.money {
  font-variant-numeric: tabular-nums;
}

.table .num,
.table .money,
.text-right {
  text-align: right;
}

.money.negative {
  color: var(--c-danger);
}

/* ---------- 清單（手機上取代表格） ---------- */

.list {
  list-style: none;
  margin: 0;
  padding: 0;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
}

.list > li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--c-border);
}

.list > li:last-child {
  border-bottom: none;
}

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

.list .title {
  font-weight: 600;
}

.list .sub {
  font-size: 0.8125rem;
  color: var(--c-muted);
}

/* ---------- 徽章 ---------- */

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1.6;
  white-space: nowrap;
  background: var(--c-neutral-soft);
  color: var(--c-muted);
}

.badge.status-unpaid,
.badge.status-rejected,
.badge.badge-danger {
  background: var(--c-danger-soft);
  color: var(--c-danger);
}

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

.badge.status-paid,
.badge.status-confirmed,
.badge.status-open,
.badge.badge-success {
  background: var(--c-success-soft);
  color: var(--c-success);
}

.badge.status-waived,
.badge.status-cancelled,
.badge.status-closed {
  background: var(--c-neutral-soft);
  color: var(--c-muted);
}

.badge.status-league,
.badge.badge-info {
  background: var(--c-info-soft);
  color: var(--c-info);
}

.badge.status-training {
  background: var(--c-primary-soft);
  color: var(--c-primary);
}

/* ---------- 提示訊息 ---------- */

.flashes {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
}

.flash {
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: var(--c-info-soft);
  color: var(--c-info);
}

.flash-success {
  background: var(--c-success-soft);
  color: var(--c-success);
}

.flash-warning {
  background: var(--c-warning-soft);
  color: var(--c-warning);
}

.flash-error {
  background: var(--c-danger-soft);
  color: var(--c-danger);
}

.callout {
  padding: 12px 14px;
  border-left: 4px solid var(--c-primary);
  background: var(--c-primary-soft);
  border-radius: var(--radius-sm);
}

.callout.warning {
  border-color: var(--c-warning);
  background: var(--c-warning-soft);
}

.callout.danger {
  border-color: var(--c-danger);
  background: var(--c-danger-soft);
}

/* ---------- 轉帳資訊卡 ---------- */

.bank-card {
  background: var(--c-primary);
  color: var(--c-on-primary);
  border-radius: var(--radius);
  padding: 16px;
}

.bank-card .bank-name {
  font-size: 0.875rem;
  opacity: 0.85;
}

.bank-card .account-title {
  font-weight: 700;
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.bank-card dl {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 6px 10px;
  align-items: center;
  margin: 0;
}

.bank-card dt {
  font-size: 0.8125rem;
  opacity: 0.85;
}

.bank-card dd {
  margin: 0;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  word-break: break-all;
}

.bank-card .copy {
  border: 1px solid rgba(255, 255, 255, 0.45);
  background: transparent;
  color: inherit;
  border-radius: 6px;
  padding: 2px 8px;
  font: inherit;
  font-size: 0.75rem;
  cursor: pointer;
}

.bank-card .copy.copied {
  background: rgba(255, 255, 255, 0.2);
}

.bank-card .bank-note {
  margin-top: 10px;
  font-size: 0.8125rem;
  opacity: 0.9;
}

/* ---------- 數字卡與進度 ---------- */

.stats {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
}

.stat {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 12px 14px;
}

.stat .label {
  font-size: 0.8125rem;
  color: var(--c-muted);
}

.stat .value {
  font-size: 1.35rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.stat .value.positive {
  color: var(--c-success);
}

.stat .value.negative {
  color: var(--c-danger);
}

.progress {
  height: 8px;
  border-radius: 999px;
  background: var(--c-neutral-soft);
  overflow: hidden;
}

.progress > span {
  display: block;
  height: 100%;
  background: var(--c-success);
}

.bar {
  height: 10px;
  border-radius: 4px;
  background: var(--c-primary);
  min-width: 2px;
}

.bar.expense {
  background: var(--c-accent);
}

/* ---------- 其他 ---------- */

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

.small {
  font-size: 0.8125rem;
}

.nowrap {
  white-space: nowrap;
}

.empty-state {
  padding: 32px 16px;
  text-align: center;
  color: var(--c-muted);
}

.divider {
  border: 0;
  border-top: 1px solid var(--c-border);
  margin: 16px 0;
}

.receipt-preview {
  display: block;
  max-height: 70vh;
  margin: 0 auto;
  border-radius: var(--radius-sm);
  border: 1px solid var(--c-border);
}

.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
}

.pwa-update {
  position: fixed;
  left: 12px;
  right: 12px;
  bottom: calc(var(--tabbar-h) + env(safe-area-inset-bottom) + 12px);
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius);
  background: var(--c-text);
  color: var(--c-bg);
  box-shadow: var(--shadow);
}

.pwa-update[hidden] {
  display: none;
}

.only-standalone {
  display: none;
}

html.standalone .only-standalone {
  display: block;
}

html.standalone .hide-standalone {
  display: none;
}

@media (min-width: 768px) {
  h1 {
    font-size: 1.6rem;
  }

  .container {
    padding: 24px;
  }
}

a.stat {
  display: block;
  color: inherit;
  text-decoration: none;
}

a.stat:hover {
  border-color: var(--c-primary);
}

/* ---------- 補充元件（各切片提出） ---------- */

.avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  flex: none;
  background: var(--c-neutral-soft);
}

.avatar.sm {
  width: 32px;
  height: 32px;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}

.tabs a,
.tab {
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.875rem;
  color: var(--c-muted);
  text-decoration: none;
  background: var(--c-neutral-soft);
}

.tabs a.active,
.tab.active {
  background: var(--c-primary);
  color: var(--c-on-primary);
}

.callout.success {
  border-color: var(--c-success);
  background: var(--c-success-soft);
}

details > summary.btn {
  list-style: none;
}

details > summary.btn::-webkit-details-marker {
  display: none;
}

.mt-1 {
  margin-top: 8px;
}

.mt-2 {
  margin-top: 16px;
}

.mb-1 {
  margin-bottom: 8px;
}

.mb-2 {
  margin-bottom: 12px;
}

/* ---------- 頁尾與長文（隱私權政策、服務條款） ---------- */

.site-footer {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  padding: 8px 16px 16px;
  font-size: 0.8125rem;
  color: var(--c-muted);
}

.site-footer a {
  color: var(--c-muted);
}

.prose h2 {
  margin-top: 24px;
  font-size: 1.05rem;
}

.prose ul,
.prose ol {
  padding-left: 1.4em;
  margin: 0 0 12px;
}

.prose li + li {
  margin-top: 6px;
}