/* ==============================
   湖畔のSAUNA サブページ共通CSS
   ============================== */
@import url('https://fonts.googleapis.com/css2?family=Shippori+Mincho+B1:wght@400;500;600;700&family=Zen+Kaku+Gothic+New:wght@300;400;500&family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;1,400&display=swap');

:root {
  --paper: #F4F0E6;
  --paper-2: #EAE3D2;
  --ink: #1B1E1A;
  --ink-soft: #3C413A;
  --forest: #2C4A39;
  --forest-2: #1C3325;
  --lake: #356E7A;
  --cedar: #B5743F;
  --gold: #C6A24A;
  --line: rgba(27,30,26,.14);
  --serif: "Shippori Mincho B1", serif;
  --sans: "Zen Kaku Gothic New", sans-serif;
  --en: "Cormorant Garamond", serif;
}

*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.8;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

/* ---------- Header ---------- */
.sub-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  height: 60px;
  background: rgba(244,240,230,.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.sub-header .logo {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--forest-2);
  letter-spacing: .1em;
}
.sub-header .logo span { color: var(--cedar); }
.sub-header .back-link {
  font-size: 13px;
  color: var(--forest);
  letter-spacing: .06em;
  opacity: .8;
}
.sub-header .back-link:hover { opacity: 1; }

/* ---------- Body offset for fixed header ---------- */
body { padding-top: 60px; }

/* ---------- Step bar ---------- */
.step-bar {
  background: var(--forest-2);
  padding: 20px 0;
}
.step-bar-inner {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: 0 24px;
}
.step-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  flex: 1;
  position: relative;
}
.step-item::after {
  content: '';
  position: absolute;
  top: 14px;
  right: -50%;
  width: 100%;
  height: 1px;
  background: rgba(255,255,255,.25);
}
.step-item:last-child::after { display: none; }
.step-num {
  width: 28px; height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--en);
  font-size: 13px;
  font-weight: 600;
  background: rgba(255,255,255,.18);
  color: rgba(255,255,255,.6);
  border: 1px solid rgba(255,255,255,.3);
  position: relative;
  z-index: 1;
}
.step-label {
  font-size: 11px;
  color: rgba(255,255,255,.55);
  letter-spacing: .04em;
  white-space: nowrap;
}
.step-item.done .step-num {
  background: var(--cedar);
  color: #fff;
  border-color: var(--cedar);
}
.step-item.done .step-label { color: rgba(255,255,255,.75); }
.step-item.active .step-num {
  background: var(--gold);
  color: var(--forest-2);
  border-color: var(--gold);
  box-shadow: 0 0 0 4px rgba(198,162,74,.25);
}
.step-item.active .step-label { color: #fff; font-weight: 500; }

/* ---------- Page main ---------- */
.page-main {
  min-height: calc(100vh - 60px);
  padding: 60px 24px 100px;
}
.page-wrap {
  max-width: 820px;
  margin: 0 auto;
}
.page-title {
  font-family: var(--serif);
  font-size: 28px;
  font-weight: 700;
  color: var(--forest-2);
  letter-spacing: .06em;
  margin-bottom: 36px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--cedar);
}
.page-subtitle {
  font-size: 13px;
  color: var(--cedar);
  font-family: var(--en);
  letter-spacing: .28em;
  text-transform: uppercase;
  margin-bottom: 8px;
  display: block;
}

/* ---------- Section card ---------- */
.form-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 32px 36px;
  margin-bottom: 24px;
}
.card-title {
  font-family: var(--serif);
  font-size: 17px;
  color: var(--forest-2);
  letter-spacing: .06em;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.card-title .required {
  font-family: var(--sans);
  font-size: 11px;
  color: #fff;
  background: var(--cedar);
  padding: 2px 8px;
  border-radius: 20px;
  letter-spacing: .04em;
}
.card-title .optional {
  font-size: 11px;
  color: var(--ink-soft);
  font-family: var(--sans);
  font-weight: 300;
}

/* ---------- Calendar ---------- */
.cal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.cal-month {
  font-family: var(--serif);
  font-size: 18px;
  color: var(--forest-2);
  letter-spacing: .06em;
}
.cal-nav {
  background: none;
  border: 1px solid var(--line);
  width: 36px; height: 36px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 16px;
  color: var(--forest);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: .3s;
}
.cal-nav:hover { background: var(--forest); color: #fff; border-color: var(--forest); }
.cal-grid { }
.cal-weekdays {
  display: grid;
  grid-template-columns: repeat(7,1fr);
  margin-bottom: 4px;
}
.cal-wday {
  text-align: center;
  font-size: 12px;
  color: var(--ink-soft);
  padding: 6px 0;
  font-weight: 500;
}
.cal-wday:first-child { color: #c05030; }
.cal-wday:last-child  { color: var(--lake); }
.cal-days {
  display: grid;
  grid-template-columns: repeat(7,1fr);
  gap: 4px;
}
.cal-day {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 6px 2px;
  border-radius: 6px;
  cursor: default;
  color: var(--ink-soft);
  transition: background .15s, border-color .15s;
  border: 1px solid transparent;
  min-height: 52px;
  user-select: none;
}
.cal-num {
  font-size: 14px;
  line-height: 1;
  margin-bottom: 4px;
}
.cal-mark {
  font-size: 13px;
  line-height: 1;
  font-weight: 700;
}
.mark-avail { color: var(--forest); }
.mark-none  { color: #bbb; }

.cal-day.available {
  border-color: rgba(44,74,57,.18);
  cursor: pointer;
}
.cal-day.available .cal-num { color: var(--forest-2); font-weight: 600; }
.cal-day.available:hover {
  border-color: var(--cedar);
}

.cal-day.selected {
  background: var(--cedar);
  border-color: var(--cedar);
}
.cal-day.selected .cal-num,
.cal-day.selected .cal-mark { color: #fff; }

.cal-day.past { opacity: .35; }
.cal-day.today .cal-num {
  color: var(--cedar);
  font-weight: 700;
}

.cal-legend {
  display: flex;
  gap: 20px;
  margin-top: 14px;
  font-size: 12px;
  color: var(--ink-soft);
}
.cal-legend span { display: flex; align-items: center; gap: 5px; }
.legend-sym {
  font-size: 13px;
  font-weight: 700;
}
.legend-sym.avail { color: var(--forest); }
.legend-sym.none  { color: #bbb; }

/* ---------- Slot Modal ---------- */
.slot-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(27,30,26,.55);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  backdrop-filter: blur(3px);
}
.slot-modal-box {
  background: #fff;
  border-radius: 8px;
  width: 100%;
  max-width: 560px;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(27,30,26,.28);
  position: relative;
}
.slot-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: #fff;
  z-index: 1;
}
.slot-modal-title {
  font-family: var(--serif);
  font-size: 17px;
  color: var(--forest-2);
  letter-spacing: .04em;
}
.slot-modal-close {
  background: none;
  border: 1px solid var(--line);
  width: 32px; height: 32px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 17px;
  color: var(--ink-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  transition: .2s;
  flex-shrink: 0;
}
.slot-modal-close:hover { background: var(--forest); color: #fff; border-color: var(--forest); }
.slot-modal-body { padding: 20px 24px 28px; }
.slot-modal-empty {
  color: var(--ink-soft);
  font-size: 14px;
  padding: 12px 0;
}
.slot-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 14px;
}
.slot-card {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 18px 16px;
  background: #fff;
  text-align: center;
  transition: border-color .2s;
}
.slot-card:not(.full):hover { border-color: var(--cedar); }
.slot-card.full { opacity: .5; }
.slot-time {
  font-family: var(--serif);
  font-size: 19px;
  color: var(--forest-2);
  letter-spacing: .04em;
  margin-bottom: 8px;
}
.badge-avail { color: var(--forest); font-size: 13px; }
.badge-few   { color: var(--cedar);  font-size: 13px; }
.badge-full  { color: #999; font-size: 13px; }
.slot-badge  { margin-bottom: 14px; }
.btn-slot    { width: 100%; padding: 11px 16px; font-size: 14px; border-radius: 6px; }

/* ---------- Plan cards ---------- */
.plan-list, .option-list {
  display: grid;
  gap: 12px;
}
.plan-card, .option-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #fff;
  cursor: pointer;
  transition: .3s;
}
.plan-card:hover, .option-card:hover { border-color: var(--cedar); }
.plan-card.selected, .option-card.selected {
  border-color: var(--cedar);
  background: rgba(181,116,63,.06);
}
.plan-card input, .option-card input { flex: none; accent-color: var(--cedar); }
.plan-info { flex: 1; }
.plan-name, .option-name {
  font-family: var(--serif);
  font-size: 16px;
  color: var(--forest-2);
  letter-spacing: .04em;
}
.plan-desc, .option-desc { font-size: 13px; color: var(--ink-soft); margin-top: 3px; }
.plan-price, .option-price {
  font-family: var(--en);
  font-size: 22px;
  color: var(--cedar);
  font-weight: 600;
  white-space: nowrap;
}
.plan-price .per { font-size: 12px; font-family: var(--sans); color: var(--ink-soft); }

/* ---------- People count ---------- */
.count-row { display: flex; gap: 24px; flex-wrap: wrap; }
.count-item { display: flex; align-items: center; gap: 12px; }
.count-item label { font-size: 15px; color: var(--ink-soft); min-width: 40px; }
.count-item select {
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 8px 12px;
  font-family: var(--sans);
  font-size: 14px;
  color: var(--ink);
  background: #fff;
  appearance: none;
  cursor: pointer;
  min-width: 100px;
}

/* ---------- Running total ---------- */
.running-total {
  background: var(--forest-2);
  color: #fff;
  border-radius: 4px;
  padding: 20px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}
.total-label { font-size: 14px; opacity: .8; }
.total-amount {
  font-family: var(--en);
  font-size: 30px;
  font-weight: 600;
  color: var(--gold);
}
.total-note { font-size: 12px; opacity: .6; margin-top: 4px; text-align: right; }

/* ---------- Guest form ---------- */
.form-row { margin-bottom: 22px; }
.form-row label {
  display: block;
  font-size: 13px;
  color: var(--ink-soft);
  margin-bottom: 7px;
  letter-spacing: .04em;
}
.form-row label .req {
  color: var(--cedar);
  margin-left: 4px;
  font-size: 12px;
}
.form-row input[type="text"],
.form-row input[type="email"],
.form-row input[type="tel"],
.form-row textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 12px 16px;
  font-family: var(--sans);
  font-size: 15px;
  color: var(--ink);
  background: #fff;
  transition: .3s;
}
.form-row input:focus, .form-row textarea:focus {
  outline: none;
  border-color: var(--cedar);
  box-shadow: 0 0 0 3px rgba(181,116,63,.12);
}
.form-row input.input-invalid,
.form-row textarea.input-invalid {
  border-color: #c05030;
  box-shadow: 0 0 0 3px rgba(192,80,48,.12);
}
.field-error {
  display: block;
  margin-top: 5px;
  font-size: 12px;
  color: #c05030;
  min-height: 1em;
}
.form-row textarea { resize: vertical; min-height: 100px; }

/* ---------- Coupon ---------- */
.coupon-row {
  display: flex;
  gap: 10px;
}
.coupon-row input { flex: 1; }
.coupon-row button {
  border: 1px solid var(--forest);
  background: none;
  color: var(--forest);
  padding: 0 20px;
  border-radius: 4px;
  font-family: var(--serif);
  font-size: 14px;
  cursor: pointer;
  white-space: nowrap;
  transition: .3s;
}
.coupon-row button:hover { background: var(--forest); color: #fff; }
.coupon-msg { margin-top: 8px; font-size: 13px; }
.coupon-ok  { color: var(--forest); }
.coupon-err { color: #c05030; }

/* ---------- Confirm table ---------- */
.confirm-table { width: 100%; border-collapse: collapse; }
.confirm-table th, .confirm-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  text-align: left;
  vertical-align: top;
}
.confirm-table th {
  width: 30%;
  color: var(--ink-soft);
  font-weight: 400;
  background: var(--paper-2);
}
.confirm-table .total-row { background: rgba(181,116,63,.05); }
.confirm-table .total-row td {
  font-family: var(--en);
  font-size: 22px;
  color: var(--cedar);
  font-weight: 600;
}

/* ---------- Slot summary bar ---------- */
.slot-summary {
  display: flex;
  align-items: center;
  gap: 16px;
  background: rgba(44,74,57,.08);
  border: 1px solid rgba(44,74,57,.2);
  border-radius: 4px;
  padding: 14px 20px;
  margin-bottom: 28px;
}
.slot-summary .s-label {
  font-size: 12px;
  color: var(--ink-soft);
  letter-spacing: .04em;
}
.slot-summary .s-value {
  font-family: var(--serif);
  font-size: 15px;
  color: var(--forest-2);
  letter-spacing: .04em;
}
.slot-summary .s-change {
  margin-left: auto;
  font-size: 12px;
  color: var(--cedar);
  text-decoration: underline;
  cursor: pointer;
}

/* ---------- Shop product grid ---------- */
.prod-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}
.prod-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  transition: .4s;
}
.prod-item:hover { transform: translateY(-4px); box-shadow: 0 16px 40px -20px rgba(28,51,37,.25); }
.prod-thumb {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-family: var(--serif);
  font-size: 16px;
  letter-spacing: .1em;
  position: relative;
}
.prod-thumb img { width:100%; height:100%; object-fit:cover; }
.prod-tag {
  position: absolute;
  top: 10px; left: 10px;
  background: var(--cedar);
  color: #fff;
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 20px;
}
.prod-body { padding: 18px 20px 22px; }
.prod-name {
  font-family: var(--serif);
  font-size: 16px;
  color: var(--forest-2);
  letter-spacing: .04em;
}
.prod-var { font-size: 12px; color: var(--ink-soft); margin-top: 4px; }
.prod-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 14px;
}
.prod-price {
  font-family: var(--en);
  font-size: 22px;
  color: var(--cedar);
  font-weight: 600;
}

/* ---------- Cart ---------- */
.cart-table { width: 100%; border-collapse: collapse; }
.cart-table th, .cart-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  vertical-align: middle;
}
.cart-table th { color: var(--ink-soft); font-weight: 400; background: var(--paper-2); }
.qty-control { display: flex; align-items: center; gap: 8px; }
.qty-btn {
  width: 28px; height: 28px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: .2s;
  color: var(--forest);
}
.qty-btn:hover { background: var(--forest); color: #fff; border-color: var(--forest); }
.cart-subtotal {
  text-align: right;
  padding: 20px 0;
  font-family: var(--en);
  font-size: 24px;
  color: var(--cedar);
  font-weight: 600;
}

/* ---------- Complete / Thank you ---------- */
.complete-box {
  text-align: center;
  padding: 60px 40px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 4px;
}
.complete-icon {
  font-size: 48px;
  margin-bottom: 20px;
  color: var(--cedar);
}
.complete-title {
  font-family: var(--serif);
  font-size: 26px;
  color: var(--forest-2);
  letter-spacing: .06em;
  margin-bottom: 16px;
}
.complete-body {
  color: var(--ink-soft);
  font-weight: 300;
  font-size: 15px;
  line-height: 2;
  margin-bottom: 32px;
}
.resv-no-box {
  display: inline-block;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 16px 40px;
  font-family: var(--en);
  font-size: 24px;
  color: var(--cedar);
  font-weight: 600;
  letter-spacing: .1em;
  margin-bottom: 32px;
}

/* ---------- Buttons ---------- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--cedar);
  color: #fff;
  border: none;
  border-radius: 40px;
  padding: 16px 48px;
  font-family: var(--serif);
  font-size: 16px;
  letter-spacing: .12em;
  cursor: pointer;
  transition: .4s;
  box-shadow: 0 8px 24px -8px rgba(181,116,63,.5);
}
.btn-primary:hover { background: var(--forest-2); transform: translateY(-2px); }
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: none;
  color: var(--forest);
  border: 1px solid var(--forest);
  border-radius: 40px;
  padding: 14px 40px;
  font-family: var(--serif);
  font-size: 15px;
  letter-spacing: .1em;
  cursor: pointer;
  transition: .4s;
}
.btn-secondary:hover { background: var(--forest); color: #fff; }
.btn-text {
  color: var(--forest);
  font-size: 14px;
  cursor: pointer;
  text-decoration: underline;
  background: none;
  border: none;
}
.form-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 32px;
}
.form-actions .left { display: flex; gap: 12px; align-items: center; }
.form-actions .right { display: flex; gap: 12px; align-items: center; }

/* ---------- Alert / Hint ---------- */
.alert-box {
  background: rgba(181,116,63,.1);
  border: 1px solid rgba(181,116,63,.3);
  border-radius: 4px;
  padding: 14px 18px;
  font-size: 13px;
  color: var(--cedar);
  margin-bottom: 24px;
}
.info-box {
  background: rgba(53,110,122,.08);
  border: 1px solid rgba(53,110,122,.2);
  border-radius: 4px;
  padding: 14px 18px;
  font-size: 13px;
  color: var(--lake);
  margin-bottom: 24px;
}
.no-data-msg { color: var(--ink-soft); font-size: 15px; padding: 20px 0; }

/* ---------- Footer ---------- */
.sub-footer {
  background: var(--forest-2);
  color: rgba(244,240,230,.6);
  text-align: center;
  padding: 30px 24px;
  font-size: 12px;
  letter-spacing: .08em;
}
.sub-footer .fmark {
  display: block;
  font-family: var(--serif);
  font-size: 16px;
  color: rgba(244,240,230,.9);
  margin-bottom: 6px;
  letter-spacing: .14em;
}

/* ---------- Responsive ---------- */
@media(max-width:680px){
  .sub-header { padding: 0 20px; }
  .page-main  { padding: 40px 16px 80px; }
  .form-card  { padding: 24px 20px; }
  .form-actions { flex-direction: column-reverse; }
  .form-actions .btn-primary,
  .form-actions .btn-secondary { width: 100%; justify-content: center; }
  .step-label { display: none; }
  .running-total { flex-direction: column; text-align: center; gap: 4px; }
  .count-row { flex-direction: column; }
}