/* sweetshop demo · 通用甜點電商 multi-page · 視覺架構源自 KUOKUO（kuorigin.com）改 mo studio 暖底 */

:root {
  --bg: #F2EBDD;
  --bg-soft: #EBE2D0;
  --text: #2C2620;
  --text-muted: #6B5D54;
  --accent: #C8552D;
  --accent-soft: #E8B7A0;
  --caramel: #8B6F47;
  --border: #D9CFB9;
  --border-light: #E5DCC8;
  --white: #FFFFFF;
  --success: #5A7D3F;
  --container: 1200px;
  --container-narrow: 960px;
  --radius: 4px;
  --radius-lg: 12px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', 'Noto Sans TC', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.7;
  font-variant-numeric: lining-nums;
  font-feature-settings: 'lnum' 1, 'tnum' 0;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; }
.display, h1, h2, h3, h4 {
  font-family: 'Shippori Mincho', 'Noto Serif TC', serif;
  font-weight: 500;
  letter-spacing: 0.02em;
  font-variant-numeric: lining-nums;
  color: var(--text);
}
em { font-style: normal; color: var(--accent); }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: var(--container-narrow); margin: 0 auto; padding: 0 24px; }

/* ─── Site header (sticky nav) ──────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 30;
  background: rgba(242, 235, 221, 0.94);
  backdrop-filter: blur(10px) saturate(1.1);
  border-bottom: 1px solid var(--border-light);
}
.site-header__inner {
  max-width: var(--container);
  margin: 0 auto; padding: 18px 24px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
}
.brand-mark {
  font-family: 'Shippori Mincho', serif;
  font-size: 22px; letter-spacing: 0.18em;
  color: var(--text);
}
.brand-mark__sub { display: block; font-size: 10px; letter-spacing: 0.3em; color: var(--text-muted); margin-top: 2px; }
.main-nav { display: flex; gap: 28px; font-size: 13px; letter-spacing: 0.12em; }
.main-nav a { color: var(--text-muted); transition: color .2s; }
.main-nav a:hover, .main-nav a.is-active { color: var(--accent); }
.header-cta {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 18px; border-radius: 999px;
  background: var(--accent); color: var(--white);
  font-size: 13px; letter-spacing: 0.08em;
  transition: opacity .2s;
}
.header-cta:hover { opacity: 0.88; }
.header-cart {
  position: relative;
  font-size: 18px; padding: 8px;
}
.header-cart__count {
  position: absolute; top: -2px; right: -4px;
  background: var(--accent); color: var(--white);
  font-size: 10px; min-width: 16px; height: 16px;
  border-radius: 8px;
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0 4px;
}
@media (max-width: 880px) {
  .main-nav { display: none; }
}

/* ─── Site footer ───────────────────────────────────────── */
.site-footer {
  background: #2C2620; color: rgba(255, 250, 240, 0.85);
  padding: 64px 24px 32px;
  margin-top: 80px;
}
.site-footer__inner { max-width: var(--container); margin: 0 auto; }
.site-footer__row { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 48px; margin-bottom: 48px; }
.site-footer h4 { color: var(--white); font-size: 18px; margin-bottom: 16px; }
.site-footer__col { min-width: 180px; }
.site-footer__col p { font-size: 13px; opacity: 0.7; line-height: 1.8; }
.site-footer__links { list-style: none; }
.site-footer__links li { margin-bottom: 8px; font-size: 13px; opacity: 0.75; }
.site-footer__links a:hover { color: var(--accent-soft); }
.site-footer__bottom {
  border-top: 1px solid rgba(255, 250, 240, 0.15);
  padding-top: 24px;
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px;
  font-size: 12px; opacity: 0.5;
}

/* ─── SVG placeholder（共用樣式）────────────────────────── */
.ph {
  display: block; width: 100%; height: 100%;
  background: var(--bg-soft);
  border: 1.5px dashed var(--border);
  border-radius: var(--radius);
}
.ph-wrap { position: relative; overflow: hidden; border-radius: var(--radius); background: var(--bg-soft); }
.ph-wrap--square { aspect-ratio: 1 / 1; }
.ph-wrap--3-4 { aspect-ratio: 3 / 4; }
.ph-wrap--16-9 { aspect-ratio: 16 / 9; }

/* ─── Shop archive (商品列表頁,當首頁)──────────────────── */
.shop-banner {
  background: var(--bg-soft);
  padding: 80px 24px 60px;
  text-align: center;
  border-bottom: 1px solid var(--border-light);
}
.shop-banner__kicker { font-size: 11px; letter-spacing: 0.4em; color: var(--accent); margin-bottom: 16px; }
.shop-banner h1 {
  font-size: clamp(40px, 6vw, 64px); line-height: 1.15;
  margin-bottom: 12px;
}
.shop-banner__en { font-family: 'Shippori Mincho', serif; font-style: italic; color: var(--caramel); font-size: 18px; margin-bottom: 24px; }
.shop-banner__lead { max-width: 520px; margin: 0 auto; color: var(--text-muted); }

.shop-filter {
  background: var(--bg); border-bottom: 1px solid var(--border-light);
  padding: 16px 24px; position: sticky; top: 65px; z-index: 20;
  backdrop-filter: blur(8px);
  background: rgba(242, 235, 221, 0.95);
}
.shop-filter__inner {
  max-width: var(--container); margin: 0 auto;
  display: flex; gap: 8px; flex-wrap: wrap;
  font-size: 13px;
}
.shop-filter a {
  padding: 6px 16px; border-radius: 999px;
  border: 1px solid var(--border); color: var(--text-muted);
  transition: all .2s;
}
.shop-filter a:hover, .shop-filter a.is-active {
  background: var(--text); color: var(--bg); border-color: var(--text);
}

.shop-grid-section { padding: 60px 0; }
.shop-cat-block { margin-bottom: 80px; scroll-margin-top: 120px; }
.shop-cat-block__header {
  display: flex; align-items: end; justify-content: space-between;
  gap: 24px; margin-bottom: 32px;
  padding-bottom: 16px; border-bottom: 1px solid var(--border-light);
}
.shop-cat-block__title h2 { font-size: 32px; }
.shop-cat-block__title em { font-style: italic; font-family: 'Shippori Mincho', serif; color: var(--caramel); font-size: 14px; margin-left: 12px; letter-spacing: 0.04em; }
.shop-cat-block__desc { color: var(--text-muted); font-size: 14px; max-width: 320px; text-align: right; }

.product-grid {
  display: grid; gap: 32px 24px;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}
.product-card {
  display: flex; flex-direction: column;
  background: var(--white); border-radius: var(--radius);
  overflow: hidden;
  transition: transform .25s ease, box-shadow .25s ease;
}
.product-card:hover { transform: translateY(-3px); box-shadow: 0 8px 20px rgba(44, 38, 32, 0.08); }
.product-card__img { aspect-ratio: 1 / 1; background: var(--bg-soft); position: relative; overflow: hidden; }
.product-card__no {
  position: absolute; top: 12px; left: 12px;
  background: var(--text); color: var(--bg);
  font-size: 10px; letter-spacing: 0.2em; padding: 4px 10px; border-radius: 999px;
  z-index: 2;
}
.product-card__body { padding: 18px 18px 22px; }
.product-card__name { font-family: 'Shippori Mincho', serif; font-size: 18px; margin-bottom: 4px; }
.product-card__lead { font-size: 12px; color: var(--text-muted); line-height: 1.6; margin-bottom: 14px; min-height: 38px; }
.product-card__foot { display: flex; align-items: center; justify-content: space-between; }
.product-card__price { font-size: 18px; color: var(--caramel); font-weight: 500; }
.product-card__price small { font-size: 11px; color: var(--text-muted); margin-left: 2px; }
.product-card__add {
  font-size: 12px; letter-spacing: 0.12em;
  background: var(--text); color: var(--bg);
  padding: 8px 14px; border-radius: 999px;
  transition: background .2s;
}
.product-card__add:hover { background: var(--accent); }

/* ─── Product detail page ──────────────────────────────── */
.product-detail { padding: 32px 0 80px; }
.product-detail__breadcrumb {
  font-size: 12px; color: var(--text-muted);
  display: flex; gap: 6px; flex-wrap: wrap;
  margin-bottom: 32px;
}
.product-detail__breadcrumb a:hover { color: var(--accent); }
.product-detail__content {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 56px;
  align-items: start;
}
@media (max-width: 880px) {
  .product-detail__content { grid-template-columns: 1fr; gap: 32px; }
}
.product-detail__images { display: flex; flex-direction: column; gap: 12px; }
.product-detail__main-image { aspect-ratio: 1 / 1; background: var(--bg-soft); border-radius: var(--radius); overflow: hidden; }
.product-detail__thumbs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.product-detail__thumb {
  aspect-ratio: 1 / 1; background: var(--bg-soft); border-radius: var(--radius);
  overflow: hidden; cursor: pointer; opacity: 0.7; transition: opacity .2s;
  border: 2px solid transparent;
}
.product-detail__thumb:hover { opacity: 1; }
.product-detail__thumb.is-active { opacity: 1; border-color: var(--accent); }
.product-detail__info { padding-top: 8px; }
.product-detail__kicker {
  font-size: 11px; letter-spacing: 0.4em; color: var(--accent);
  margin-bottom: 16px;
}
.product-detail__name { font-size: 36px; line-height: 1.2; margin-bottom: 8px; }
.product-detail__name-en { font-family: 'Shippori Mincho', serif; font-style: italic; color: var(--caramel); font-size: 16px; margin-bottom: 24px; }
.product-detail__no { font-size: 12px; color: var(--text-muted); margin-bottom: 24px; letter-spacing: 0.16em; }
.product-detail__lead { color: var(--text-muted); margin-bottom: 28px; line-height: 1.8; }
.product-detail__price { font-size: 32px; color: var(--caramel); margin-bottom: 4px; }
.product-detail__spec { font-size: 14px; color: var(--text-muted); margin-bottom: 32px; }
.product-detail__buy { display: flex; gap: 12px; align-items: stretch; margin-bottom: 32px; }
.qty-stepper {
  display: inline-flex; align-items: center;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--white);
}
.qty-stepper button { width: 40px; height: 44px; font-size: 18px; color: var(--text-muted); transition: background .2s; }
.qty-stepper button:hover { background: var(--bg-soft); }
.qty-stepper input {
  width: 44px; height: 44px; text-align: center;
  border: 0; background: transparent; font-size: 15px; font-family: inherit;
}
.btn-buy {
  flex: 1; background: var(--accent); color: var(--white);
  padding: 12px 24px; border-radius: var(--radius);
  font-size: 14px; letter-spacing: 0.12em;
  display: inline-flex; align-items: center; justify-content: center;
  transition: opacity .2s;
}
.btn-buy:hover { opacity: 0.9; }
.btn-buy--ghost { background: transparent; color: var(--text); border: 1px solid var(--text); }
.btn-buy--ghost:hover { background: var(--text); color: var(--bg); opacity: 1; }

.product-detail__tabs { margin-top: 56px; }
.product-detail__tabs-nav {
  display: flex; gap: 0; border-bottom: 1px solid var(--border-light);
  margin-bottom: 32px;
}
.product-detail__tabs-nav button {
  padding: 14px 24px; font-size: 14px; letter-spacing: 0.12em;
  color: var(--text-muted); border-bottom: 2px solid transparent;
  transition: all .2s; margin-bottom: -1px;
}
.product-detail__tabs-nav button.is-active { color: var(--text); border-bottom-color: var(--accent); }
.product-detail__tab-panel { padding: 8px 0 24px; max-width: 720px; line-height: 1.85; color: var(--text-muted); }
.product-detail__tab-panel h4 { font-size: 16px; color: var(--text); margin: 16px 0 8px; }
.product-detail__tab-panel ul { padding-left: 20px; margin-bottom: 16px; }
.product-detail__tab-panel li { margin-bottom: 4px; }

/* ─── Cart page (kcart) ─────────────────────────────────── */
.kcart { padding: 48px 0 80px; }
.kcart__title { font-size: 40px; margin-bottom: 32px; }
.kcart__layout { display: grid; grid-template-columns: 1.7fr 1fr; gap: 40px; align-items: start; }
@media (max-width: 880px) { .kcart__layout { grid-template-columns: 1fr; } }
.kcart__list { background: var(--white); border-radius: var(--radius); padding: 24px; }
.kcart__row { display: grid; grid-template-columns: 3fr 1fr 1.2fr 1fr; gap: 16px; align-items: center; padding: 16px 0; }
.kcart__row--header { padding-top: 0; padding-bottom: 12px; border-bottom: 1px solid var(--border-light); font-size: 12px; letter-spacing: 0.16em; color: var(--text-muted); }
.kcart__row + .kcart__row { border-top: 1px solid var(--border-light); }
.kcart__product { display: flex; gap: 16px; align-items: center; }
.kcart__product-img { width: 72px; height: 72px; background: var(--bg-soft); border-radius: var(--radius); flex-shrink: 0; overflow: hidden; }
.kcart__product-info { font-size: 14px; }
.kcart__product-name { font-family: 'Shippori Mincho', serif; font-size: 16px; margin-bottom: 4px; }
.kcart__product-spec { font-size: 11px; color: var(--text-muted); letter-spacing: 0.12em; }
.kcart__price, .kcart__subtotal { font-size: 15px; color: var(--text); }
.kcart__subtotal { font-weight: 500; color: var(--caramel); }
.kcart__remove { font-size: 11px; color: var(--text-muted); text-decoration: underline; margin-top: 6px; display: inline-block; }
.kcart__remove:hover { color: var(--accent); }
.kcart__sidebar { background: var(--white); border-radius: var(--radius); padding: 24px; position: sticky; top: 100px; }
.kcart__sidebar h3 { font-size: 18px; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid var(--border-light); }
.kcart__sum-row { display: flex; justify-content: space-between; font-size: 14px; margin-bottom: 10px; color: var(--text-muted); }
.kcart__sum-row--total { margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--border-light); font-size: 18px; color: var(--text); font-weight: 500; }
.kcart__sum-row--total .price { color: var(--caramel); font-size: 24px; }
.kcart__checkout {
  width: 100%; margin-top: 24px;
  background: var(--accent); color: var(--white);
  padding: 16px; border-radius: var(--radius);
  font-size: 14px; letter-spacing: 0.16em;
}
.kcart__checkout:hover { opacity: 0.9; }
.kcart__notice { font-size: 12px; color: var(--text-muted); margin-top: 16px; line-height: 1.6; }

/* ─── Checkout (kcheckout) ──────────────────────────────── */
.kcheckout { padding: 48px 0 80px; }
.kcheckout__title { font-size: 40px; margin-bottom: 32px; }
.kcheckout__layout { display: grid; grid-template-columns: 1.7fr 1fr; gap: 40px; align-items: start; }
@media (max-width: 880px) { .kcheckout__layout { grid-template-columns: 1fr; } }
.kcheckout__section { background: var(--white); border-radius: var(--radius); padding: 28px; margin-bottom: 24px; }
.kcheckout__sec-head { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; padding-bottom: 16px; border-bottom: 1px solid var(--border-light); }
.kcheckout__sec-head h3 { font-size: 20px; }
.kcheckout__sec-num { background: var(--accent); color: var(--white); width: 26px; height: 26px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-size: 13px; font-family: 'Shippori Mincho', serif; }
.kcheckout__field { margin-bottom: 18px; }
.kcheckout__field label { display: block; font-size: 12px; color: var(--text-muted); letter-spacing: 0.12em; margin-bottom: 8px; }
.kcheckout__field label .req { color: var(--accent); }
.kcheckout__field input, .kcheckout__field select, .kcheckout__field textarea {
  width: 100%; padding: 12px 14px;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--bg); color: var(--text);
  font-family: inherit; font-size: 14px;
  transition: border-color .2s;
}
.kcheckout__field input:focus, .kcheckout__field select:focus, .kcheckout__field textarea:focus {
  outline: none; border-color: var(--accent);
}
.kcheckout__grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.kcheckout__radio-group { display: flex; flex-direction: column; gap: 12px; }
.kcheckout__radio { display: flex; align-items: start; gap: 12px; padding: 14px 16px; border: 1px solid var(--border); border-radius: var(--radius); cursor: pointer; transition: all .2s; }
.kcheckout__radio:has(input:checked) { border-color: var(--accent); background: rgba(200, 85, 45, 0.04); }
.kcheckout__radio input { margin-top: 3px; }
.kcheckout__radio-label { font-size: 14px; flex: 1; }
.kcheckout__radio-label small { display: block; color: var(--text-muted); font-size: 12px; margin-top: 4px; }
.kcheckout__radio-fee { font-size: 13px; color: var(--text-muted); }

.kcheckout__sidebar { background: var(--white); border-radius: var(--radius); padding: 28px; position: sticky; top: 100px; }
.kcheckout__sidebar h3 { font-size: 18px; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid var(--border-light); }
.kcheckout__line { display: flex; gap: 12px; padding: 12px 0; border-bottom: 1px dashed var(--border-light); }
.kcheckout__line-img { width: 48px; height: 48px; background: var(--bg-soft); border-radius: var(--radius); flex-shrink: 0; }
.kcheckout__line-info { flex: 1; font-size: 13px; }
.kcheckout__line-info small { color: var(--text-muted); font-size: 11px; }
.kcheckout__line-price { font-size: 14px; color: var(--caramel); white-space: nowrap; }
.kcheckout__sum-row { display: flex; justify-content: space-between; font-size: 14px; margin-top: 12px; color: var(--text-muted); }
.kcheckout__sum-row--total { margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--border-light); font-size: 18px; color: var(--text); font-weight: 500; }
.kcheckout__sum-row--total .price { color: var(--caramel); font-size: 24px; }
.kcheckout__submit { width: 100%; margin-top: 24px; background: var(--accent); color: var(--white); padding: 16px; border-radius: var(--radius); font-size: 14px; letter-spacing: 0.16em; }
.kcheckout__submit:hover { opacity: 0.9; }

/* ─── Thankyou page ─────────────────────────────────────── */
.thankyou { padding: 80px 0; text-align: center; }
.thankyou__icon { font-size: 56px; color: var(--success); margin-bottom: 24px; }
.thankyou h1 { font-size: 44px; margin-bottom: 12px; }
.thankyou__lead { color: var(--text-muted); margin-bottom: 32px; }
.thankyou__order-no { display: inline-block; background: var(--bg-soft); padding: 12px 24px; border-radius: var(--radius); font-family: 'Shippori Mincho', serif; letter-spacing: 0.16em; margin-bottom: 48px; }
.thankyou__summary { max-width: 620px; margin: 0 auto; background: var(--white); border-radius: var(--radius); padding: 32px; text-align: left; }
.thankyou__summary h3 { font-size: 18px; margin-bottom: 20px; padding-bottom: 12px; border-bottom: 1px solid var(--border-light); }
.thankyou__detail-row { display: flex; justify-content: space-between; gap: 16px; padding: 10px 0; font-size: 14px; color: var(--text-muted); }
.thankyou__detail-row strong { color: var(--text); font-weight: 500; }
.thankyou__cta { margin-top: 48px; display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }

/* ─── About page ────────────────────────────────────────── */
.about-hero { padding: 80px 0 60px; text-align: center; }
.about-hero h1 { font-size: clamp(40px, 6vw, 64px); margin-bottom: 16px; line-height: 1.1; }
.about-hero__lead { max-width: 580px; margin: 0 auto; color: var(--text-muted); font-size: 16px; }
.about-section { padding: 56px 0; }
.about-section--alt { background: var(--bg-soft); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.about-grid--reverse > :first-child { order: 2; }
@media (max-width: 880px) {
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
  .about-grid--reverse > :first-child { order: 0; }
}
.about-section h2 { font-size: 32px; margin-bottom: 20px; }
.about-section h2 em { font-family: 'Shippori Mincho', serif; font-style: italic; color: var(--caramel); font-size: 16px; margin-left: 8px; }
.about-section p { color: var(--text-muted); margin-bottom: 16px; line-height: 1.9; }
.about-section__image { aspect-ratio: 4 / 5; background: var(--bg-soft); border-radius: var(--radius); }
.about-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-top: 48px; }
.about-stat { text-align: center; }
.about-stat__num { font-family: 'Shippori Mincho', serif; font-size: 48px; color: var(--accent); margin-bottom: 8px; }
.about-stat__label { font-size: 12px; letter-spacing: 0.2em; color: var(--text-muted); }

/* ─── FAQ page ──────────────────────────────────────────── */
.faq { padding: 60px 0 80px; }
.faq__hero { text-align: center; margin-bottom: 56px; }
.faq__hero h1 { font-size: 44px; margin-bottom: 12px; }
.faq__hero p { color: var(--text-muted); }
.faq-group { max-width: 760px; margin: 0 auto 48px; }
.faq-group h3 { font-size: 13px; letter-spacing: 0.3em; color: var(--accent); margin-bottom: 20px; padding-bottom: 12px; border-bottom: 1px solid var(--border-light); }
.faq-item {
  border-bottom: 1px solid var(--border-light);
  padding: 18px 0;
}
.faq-item summary {
  list-style: none; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  font-family: 'Shippori Mincho', serif; font-size: 18px; color: var(--text);
}
.faq-item summary::after {
  content: '+';
  font-size: 24px; color: var(--text-muted);
  transition: transform .2s;
}
.faq-item[open] summary::after { content: '−'; }
.faq-item__answer { padding: 16px 0 4px; color: var(--text-muted); line-height: 1.9; font-size: 14px; }

/* ─── Toast (加入購物車回饋,雖然靜態但留樣式) ──────────── */
.toast {
  position: fixed; top: 24px; right: 24px; z-index: 100;
  background: var(--text); color: var(--bg);
  padding: 14px 20px; border-radius: var(--radius);
  font-size: 13px; box-shadow: 0 8px 16px rgba(0,0,0,0.15);
  opacity: 0; transform: translateX(20px); transition: all .25s;
  pointer-events: none;
}
.toast.is-show { opacity: 1; transform: translateX(0); }