/* ====== Design tokens ======
   紙色底 (落單紙質感) + 墨綠(健康/主色) + 硃紅(蓋章重點,克制使用) + 4個分類重點色
*/
:root {
  --paper: #FAF5EC;
  --paper-raised: #FFFFFF;
  --ink: #2B2420;
  --ink-soft: #786C5E;
  --line: #DCD0B8;
  --line-strong: #C7B790;

  --jade: #2C6E5C;
  --jade-deep: #1F5347;
  --vermillion: #B8402F;

  --cat-tea: #BD8F3A;      /* 茶記酒樓 */
  --cat-market: #A1583A;   /* 街市小食 */
  --cat-drink: #3E7D78;    /* 連鎖飲品 */
  --cat-super: #4F6B82;    /* 超市包裝 */

  --font-display: "Noto Serif TC", serif;
  --font-body: "Noto Sans TC", sans-serif;
  --font-mono: "Roboto Mono", monospace;

  --radius: 4px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

body {
  background-image:
    radial-gradient(rgba(43,36,32,0.025) 1px, transparent 1px);
  background-size: 14px 14px;
}

a { color: var(--jade-deep); }

button {
  font-family: inherit;
  cursor: pointer;
}

/* ====== 頂部導覽 (三大板塊共用) ====== */
.top-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 640px;
  margin: 0 auto;
  padding: 14px 20px 0;
}
.top-nav__brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.02em;
}
.top-nav__links {
  display: flex;
  gap: 18px;
}
.top-nav__links a {
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-soft);
  text-decoration: none;
  padding-bottom: 4px;
  border-bottom: 2px solid transparent;
}
.top-nav__links a:hover { color: var(--ink); }

body[data-page="diet"] .top-nav__links a[data-nav="diet"],
body[data-page="exercise"] .top-nav__links a[data-nav="exercise"],
body[data-page="fasting"] .top-nav__links a[data-nav="fasting"] {
  color: var(--ink);
  border-bottom-color: var(--jade);
}

/* ====== Header: 落單紙頂部 ====== */
.chit-header {
  background: var(--ink);
  color: var(--paper);
  border-bottom: 4px solid var(--jade);
}
.chit-header__inner {
  max-width: 640px;
  margin: 0 auto;
  padding: 28px 20px 22px;
}
.eyebrow {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #C9BCA4;
}
.brand {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 30px;
  letter-spacing: 0.04em;
}
.subtitle {
  margin: 0;
  font-size: 14px;
  color: #D8CCB6;
}

/* ====== Layout ====== */
.container {
  max-width: 640px;
  margin: 0 auto;
  padding: 22px 16px 60px;
}

/* ====== Search ====== */
.search-block { margin-bottom: 18px; }
.search-row {
  position: relative;
  margin-bottom: 14px;
}
#searchInput {
  width: 100%;
  border: none;
  background: transparent;
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--ink);
  padding: 10px 2px 12px;
  outline: none;
}
#searchInput::placeholder { color: #A89A85; font-family: var(--font-body); font-size: 16px; }
.search-row__line {
  display: block;
  height: 2px;
  background-image: linear-gradient(to right, var(--line-strong) 60%, transparent 0%);
  background-size: 10px 2px;
  background-repeat: repeat-x;
}
#searchInput:focus + .search-row__line {
  background-image: linear-gradient(to right, var(--jade) 60%, transparent 0%);
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.chip {
  border: 1.5px solid var(--line-strong);
  background: var(--paper-raised);
  color: var(--ink-soft);
  border-radius: 100px;
  padding: 7px 14px;
  font-size: 13px;
  font-weight: 500;
  transition: all 0.15s ease;
}
.chip:focus-visible {
  outline: 2px solid var(--jade);
  outline-offset: 2px;
}
.chip.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}
.chip[data-category="茶記酒樓"].is-active { background: var(--cat-tea); border-color: var(--cat-tea); }
.chip[data-category="街市小食"].is-active { background: var(--cat-market); border-color: var(--cat-market); }
.chip[data-category="連鎖飲品"].is-active { background: var(--cat-drink); border-color: var(--cat-drink); }
.chip[data-category="超市包裝"].is-active { background: var(--cat-super); border-color: var(--cat-super); }

/* ====== Status line ====== */
.status-line {
  font-size: 12px;
  color: var(--ink-soft);
  font-family: var(--font-mono);
  margin: 0 0 10px;
  min-height: 16px;
}

/* ====== Ticket list (收據/落單紙風格卡片) ====== */
.ticket-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.ticket {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 1px 0 rgba(43,36,32,0.04);
  overflow: hidden;
}

.ticket__main {
  width: 100%;
  display: grid;
  grid-template-columns: 3px 1fr auto;
  align-items: stretch;
  background: none;
  border: none;
  padding: 0;
  text-align: left;
  color: inherit;
}

.ticket__perf {
  background-image: radial-gradient(circle, var(--paper) 2.5px, transparent 2.6px);
  background-size: 100% 12px;
  background-position: center;
  background-repeat: repeat-y;
}

.ticket__info {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 14px 14px;
  min-width: 0;
}

.ticket__category {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  text-transform: uppercase;
}

.ticket__name {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 16px;
  line-height: 1.3;
}

.ticket__serving {
  font-size: 12px;
  color: var(--ink-soft);
}

.ticket__stamp {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0 16px;
  border-left: 1px dashed var(--line-strong);
  position: relative;
}

.ticket__cal {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 20px;
  color: var(--vermillion);
  line-height: 1;
}
.ticket__cal-unit {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-soft);
  margin-top: 2px;
}

/* category accent on the name */
.ticket[data-category="茶記酒樓"] .ticket__category { color: var(--cat-tea); }
.ticket[data-category="街市小食"] .ticket__category { color: var(--cat-market); }
.ticket[data-category="連鎖飲品"] .ticket__category { color: var(--cat-drink); }
.ticket[data-category="超市包裝"] .ticket__category { color: var(--cat-super); }

/* ====== Expanded detail ====== */
.ticket__detail {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.2s ease;
  border-top: 1px dashed transparent;
}
.ticket.is-open .ticket__detail {
  border-top-color: var(--line);
}

.macro-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  margin: 0;
  padding: 12px 14px 4px;
}
.macro-grid div {
  text-align: center;
}
.macro-grid dt {
  font-size: 10px;
  color: var(--ink-soft);
  margin: 0 0 2px;
}
.macro-grid dd {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  margin: 0;
}

.tip {
  margin: 8px 14px 14px;
  padding: 10px 12px;
  background: #F3EEDC;
  border-left: 3px solid var(--jade);
  font-size: 12.5px;
  color: var(--ink);
  border-radius: 2px;
}
.tip:empty { display: none; }

/* ====== 首頁 Hub: 3個板塊選單卡 ====== */
.hub-intro {
  text-align: center;
  padding: 8px 4px 26px;
}
.hub-intro p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
}

.hub-menu {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.hub-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 18px 18px 16px;
  position: relative;
  overflow: hidden;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.hub-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 5px;
}
.hub-card:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(43,36,32,0.08);
}
.hub-card[data-tone="diet"]::before { background: var(--vermillion); }
.hub-card[data-tone="exercise"]::before { background: var(--jade); }
.hub-card[data-tone="fasting"]::before { background: var(--cat-drink); }

.hub-card__top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}
.hub-card__index {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-soft);
  letter-spacing: 0.08em;
}
.hub-card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  margin: 4px 0 4px;
}
.hub-card__desc {
  font-size: 13px;
  color: var(--ink-soft);
  margin: 0 0 10px;
  line-height: 1.5;
}
.hub-card__cta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink);
  font-weight: 700;
}

/* ====== 運動板塊: 處方箋風格 ====== */
.rx-block { margin-bottom: 18px; }

.rx-tools {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 16px;
  padding: 14px;
  background: var(--paper-raised);
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
}
.rx-tools label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 11px;
  color: var(--ink-soft);
}
.rx-tools input {
  font-family: var(--font-mono);
  font-size: 16px;
  border: none;
  border-bottom: 1.5px solid var(--line-strong);
  background: transparent;
  padding: 4px 2px;
  color: var(--ink);
  outline: none;
}
.rx-tools input:focus { border-bottom-color: var(--jade); }

.rx-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.rx-card {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 14px;
  position: relative;
}
.rx-card__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
  border-bottom: 1px dashed var(--line);
  padding-bottom: 8px;
  margin-bottom: 8px;
}
.rx-card__name {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 16px;
}
.rx-card__meta {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.rx-card__burn {
  text-align: right;
  flex-shrink: 0;
}
.rx-card__burn-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 20px;
  color: var(--jade-deep);
  line-height: 1;
}
.rx-card__burn-unit {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--ink-soft);
}
.rx-card__desc {
  font-size: 12.5px;
  color: var(--ink);
  margin: 0 0 4px;
}
.rx-card__tip {
  font-size: 12px;
  color: var(--ink-soft);
  margin: 0;
}
.rx-card__badge {
  display: inline-block;
  font-size: 10px;
  font-family: var(--font-mono);
  padding: 2px 7px;
  border-radius: 100px;
  margin-right: 4px;
  border: 1px solid var(--line-strong);
  color: var(--ink-soft);
}

/* 訓練計劃卡 */
.plan-list {
  list-style: none;
  margin: 0; padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.plan-card {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.plan-card__head {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding: 14px;
  background: none;
  border: none;
  text-align: left;
}
.plan-card__name {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 16px;
  display: block;
}
.plan-card__meta {
  font-size: 12px;
  color: var(--ink-soft);
}
.plan-card__arrow {
  font-family: var(--font-mono);
  color: var(--ink-soft);
  transition: transform 0.15s ease;
}
.plan-card.is-open .plan-card__arrow { transform: rotate(90deg); }

.plan-card__body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.2s ease;
  border-top: 1px dashed transparent;
}
.plan-card.is-open .plan-card__body { border-top-color: var(--line); }

.plan-day {
  padding: 10px 14px;
  border-bottom: 1px dotted var(--line);
}
.plan-day:last-child { border-bottom: none; }
.plan-day__label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--jade-deep);
  font-weight: 700;
  margin-bottom: 4px;
}
.plan-day__item {
  font-size: 13px;
  display: flex;
  justify-content: space-between;
  padding: 2px 0;
}
.plan-day__item-name { color: var(--ink); }
.plan-day__item-reps {
  font-family: var(--font-mono);
  color: var(--ink-soft);
}
.plan-day__rest {
  font-size: 12.5px;
  color: var(--ink-soft);
  font-style: italic;
}

/* ====== 斷食板塊: 倒數時鐘 + 登機證風格 ====== */
.protocol-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.boarding-pass {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: grid;
  grid-template-columns: 1fr auto;
  margin-bottom: 18px;
  overflow: hidden;
}
.boarding-pass__main {
  padding: 18px 16px;
}
.boarding-pass__label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-soft);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0 0 6px;
}
.boarding-pass__timer {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 38px;
  color: var(--vermillion);
  line-height: 1;
  letter-spacing: 0.02em;
}
.boarding-pass__sub {
  font-size: 12.5px;
  color: var(--ink-soft);
  margin: 6px 0 0;
}
.boarding-pass__bar-track {
  height: 6px;
  background: #ECE3CC;
  border-radius: 100px;
  margin-top: 14px;
  overflow: hidden;
}
.boarding-pass__bar-fill {
  height: 100%;
  background: var(--jade);
  border-radius: 100px;
  transition: width 0.3s ease;
}
.boarding-pass__stub {
  border-left: 1px dashed var(--line-strong);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 16px;
  background: #F3EEDC;
}
.boarding-pass__stub button {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  border: none;
  border-radius: 100px;
  padding: 9px 14px;
  background: var(--jade);
  color: var(--paper);
  white-space: nowrap;
}
.boarding-pass__stub button.is-secondary {
  background: transparent;
  color: var(--ink-soft);
  border: 1px solid var(--line-strong);
}

.protocol-info-card {
  background: var(--paper-raised);
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  padding: 14px;
  font-size: 13px;
  color: var(--ink-soft);
  margin-bottom: 18px;
}

.tips-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.tip-card {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cat-drink);
  border-radius: 2px;
  padding: 10px 12px;
}
.tip-card__cat {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--cat-drink);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0 0 3px;
}
.tip-card__text {
  font-size: 13px;
  margin: 0;
  color: var(--ink);
}
.tip-card__detail {
  font-size: 12px;
  color: var(--ink-soft);
  margin: 4px 0 0;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  margin: 26px 0 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.section-title::before {
  content: "";
  width: 14px;
  height: 2px;
  background: var(--jade);
  display: inline-block;
}

/* ====== Empty / loading states ====== */
.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--ink-soft);
}
.empty-state strong {
  display: block;
  font-family: var(--font-display);
  font-size: 16px;
  color: var(--ink);
  margin-bottom: 4px;
}

/* ====== Footer ====== */
.page-footer {
  text-align: center;
  padding: 20px;
  font-size: 11px;
  color: var(--ink-soft);
}

/* ====== Reduced motion ====== */
@media (prefers-reduced-motion: reduce) {
  .ticket__detail { transition: none; }
}

@media (max-width: 380px) {
  .brand { font-size: 26px; }
  .ticket__name { font-size: 15px; }
  .macro-grid { grid-template-columns: repeat(5, 1fr); gap: 4px; }
  .boarding-pass { grid-template-columns: 1fr; }
  .boarding-pass__stub { border-left: none; border-top: 1px dashed var(--line-strong); flex-direction: row; }
  .boarding-pass__timer { font-size: 30px; }
  .rx-tools { grid-template-columns: 1fr 1fr; }
}