/* ================================================
   Solo Reserve — Master Stylesheet
   ================================================ */

/* ------------------------------------------------
   Google Fonts Import
   ------------------------------------------------ */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400&family=Noto+Sans+JP:wght@300;400;500;700&display=swap');

/* ------------------------------------------------
   CSS Custom Properties
   ------------------------------------------------ */
:root {
  --color-black:   #1a1a1a;
  --color-gold:    #c8a96e;
  --color-white:   #ffffff;
  --color-light:   #f8f7f5;
  --color-border:  #d8d0c4;
  --color-muted:   #888076;
  --color-error:   #8b2020;
  --color-success: #2a5a3a;

  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans:  'Noto Sans JP', 'Helvetica Neue', Helvetica, sans-serif;

  --spacing-xs:  0.5rem;
  --spacing-sm:  1rem;
  --spacing-md:  2rem;
  --spacing-lg:  3.5rem;
  --spacing-xl:  6rem;

  --transition: 200ms ease;
}

/* ------------------------------------------------
   CSS Reset
   ------------------------------------------------ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--color-white);
  color: var(--color-black);
  font-family: var(--font-sans);
  font-weight: 400;
  line-height: 1.8;
  letter-spacing: 0.04em;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* ------------------------------------------------
   Noise Texture Overlay（紙質感）
   SVG フィルターをdata URIで生成しbody::afterに重ねる
   ------------------------------------------------ */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23noise)' opacity='1'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 300px 300px;
}

img, video, svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  color: var(--color-gold);
}

ul, ol {
  list-style: none;
}

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

/* ------------------------------------------------
   Typography
   ------------------------------------------------ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: 0.06em;
  color: var(--color-black);
}

h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.2rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }
h4 { font-size: 1.1rem; }

p {
  margin-bottom: 1em;
}

.text-gold    { color: var(--color-gold); }
.text-muted   { color: var(--color-muted); font-size: 0.875rem; }
.text-small   { font-size: 0.8rem; letter-spacing: 0.08em; }
.text-center  { text-align: center; }
.text-uppercase { text-transform: uppercase; letter-spacing: 0.15em; }

/* ------------------------------------------------
   Layout
   ------------------------------------------------ */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container--narrow {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-xl) 0;
}

.section--sm {
  padding: var(--spacing-lg) 0;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

/* ------------------------------------------------
   Header / Nav
   ------------------------------------------------ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.site-logo {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-black);
  text-transform: uppercase;
}

.site-logo span {
  color: var(--color-gold);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.site-nav a {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-black);
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), color var(--transition);
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--color-gold);
  border-color: var(--color-gold);
}

/* ------------------------------------------------
   Hamburger Button
   ------------------------------------------------ */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 201;
  position: relative;
}

.nav-toggle__line {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--color-black);
  transition: transform 300ms ease, opacity 300ms ease, width 300ms ease;
  transform-origin: center;
}

.nav-toggle.is-open .nav-toggle__line:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.nav-toggle.is-open .nav-toggle__line:nth-child(2) {
  opacity: 0;
  width: 0;
}
.nav-toggle.is-open .nav-toggle__line:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* Mobile Nav Drawer */
.nav-drawer {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
}

.nav-drawer.is-open {
  display: block;
}

.nav-drawer__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
}

.nav-drawer__panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(300px, 85vw);
  background: var(--color-white);
  display: flex;
  flex-direction: column;
  padding: 0 0 var(--spacing-md);
  transform: translateX(100%);
  transition: transform 300ms cubic-bezier(0.4, 0, 0.2, 1);
  overflow-y: auto;
}

.nav-drawer.is-open .nav-drawer__panel {
  transform: translateX(0);
}

/* Drawer header with × button */
.nav-drawer__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-sm);
  height: 60px;
  border-bottom: 1px solid var(--color-light);
  flex-shrink: 0;
}

.nav-drawer__logo {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-black);
}

.nav-drawer__logo span { color: var(--color-gold); }

.nav-drawer__close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 0;
  cursor: pointer;
  font-size: 1.1rem;
  color: var(--color-black);
  transition: background var(--transition), color var(--transition);
  flex-shrink: 0;
}

.nav-drawer__close:hover {
  background: var(--color-black);
  color: var(--color-white);
}

.nav-drawer__nav {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: var(--spacing-sm) var(--spacing-sm) 0;
}

.nav-drawer__nav a {
  display: block;
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--color-black);
  padding: 0.95em 0;
  border-bottom: 1px solid var(--color-light);
  transition: color var(--transition);
}

.nav-drawer__nav a:hover,
.nav-drawer__nav a.active {
  color: var(--color-gold);
}

/* Nearby available dates */
.slots-nearby {
  margin-top: var(--spacing-sm);
  padding: var(--spacing-sm);
  border: 1px solid var(--color-border);
  background: var(--color-light);
  font-size: 0.85rem;
}

.slots-nearby__label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 0.6em;
}

.slots-nearby__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.slots-nearby__btn {
  display: inline-flex;
  align-items: center;
  padding: 0.45em 1em;
  font-size: 0.8rem;
  font-family: inherit;
  font-weight: 500;
  border: 1px solid var(--color-gold);
  background: transparent;
  color: var(--color-gold);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
  border-radius: 0;
}

/* ------------------------------------------------
   Compact Menu List (HPB style)
   ------------------------------------------------ */
.menu-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--color-border);
}

.menu-list-item {
  position: relative;
  display: flex;
  align-items: stretch;
  gap: 0;
  cursor: pointer;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-white);
  transition: background var(--transition);
}

.menu-list-item:last-child {
  border-bottom: none;
}

.menu-list-item:hover {
  background: var(--color-light);
}

.menu-list-item.is-selected {
  background: #fdf8f0;
}

.menu-list-item.is-selected .menu-list__radio-indicator {
  border-color: var(--color-gold);
  background: var(--color-gold);
}

.menu-list-item input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.menu-list__radio-col {
  display: flex;
  align-items: center;
  padding: 0 var(--spacing-sm);
  flex-shrink: 0;
}

.menu-list__radio-indicator {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 1.5px solid var(--color-border);
  background: var(--color-white);
  transition: background var(--transition), border-color var(--transition);
  flex-shrink: 0;
}

.menu-list__body {
  flex: 1;
  padding: 0.9em 0;
  min-width: 0;
}

.menu-list__name {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-black);
  margin-bottom: 0.15em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.menu-list__desc {
  font-size: 0.78rem;
  color: var(--color-muted);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.menu-list__meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: center;
  padding: 0.9em var(--spacing-sm);
  flex-shrink: 0;
  gap: 0.2em;
}

.menu-list__price {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-black);
  white-space: nowrap;
}

.menu-list__duration {
  font-size: 0.72rem;
  color: var(--color-muted);
  white-space: nowrap;
}

/* ------------------------------------------------
   Buttons
   ------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 0.9em 2.2em;
  border: 1px solid var(--color-black);
  border-radius: 0;
  background: transparent;
  color: var(--color-black);
  transition: background var(--transition), color var(--transition);
  white-space: nowrap;
  cursor: pointer;
  text-decoration: none;
}

.btn:hover {
  background: var(--color-black);
  color: var(--color-white);
}

.btn-primary {
  background: var(--color-black);
  color: var(--color-white);
  border-color: var(--color-black);
}

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

.btn-secondary {
  background: transparent;
  color: var(--color-gold);
  border-color: var(--color-gold);
}

.btn-secondary:hover {
  background: var(--color-gold);
  color: var(--color-white);
}

.btn-danger {
  background: transparent;
  color: var(--color-error);
  border-color: var(--color-error);
}

.btn-danger:hover {
  background: var(--color-error);
  color: var(--color-white);
}

.btn--full {
  width: 100%;
}

.btn--sm {
  font-size: 0.65rem;
  padding: 0.6em 1.4em;
}

/* ------------------------------------------------
   Form Elements
   ------------------------------------------------ */
.form-group {
  margin-bottom: var(--spacing-md);
}

label {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 0.5em;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"],
input[type="date"],
input[type="time"],
select,
textarea {
  display: block;
  width: 100%;
  padding: 0.85em 1em;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--color-black);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 0;
  outline: none;
  transition: border-color var(--transition);
  appearance: none;
  -webkit-appearance: none;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--color-gold);
}

textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.7;
}

select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%231a1a1a'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1em center;
  padding-right: 2.5em;
}

.form-error {
  font-size: 0.75rem;
  color: var(--color-error);
  margin-top: 0.4em;
  letter-spacing: 0.04em;
}

.form-hint {
  font-size: 0.75rem;
  color: var(--color-muted);
  margin-top: 0.4em;
}

/* ------------------------------------------------
   Cards
   ------------------------------------------------ */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  padding: var(--spacing-md);
  position: relative;
  transition: border-color var(--transition);
}

.card:hover {
  border-color: var(--color-gold);
}

.card--selected {
  border-color: var(--color-gold);
  border-width: 2px;
}

.card__label {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 0.5em;
}

.card__title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  margin-bottom: 0.5em;
}

.card__price {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-black);
}

.card__duration {
  font-size: 0.78rem;
  color: var(--color-muted);
  letter-spacing: 0.08em;
}

.card__desc {
  font-size: 0.85rem;
  color: var(--color-muted);
  margin-top: 0.75em;
  line-height: 1.7;
}

/* Menu selection card（クリック可能） */
.menu-card {
  cursor: pointer;
  user-select: none;
}

.menu-card input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

/* ------------------------------------------------
   Calendar / Time Slots
   ------------------------------------------------ */
.slots-section {
  margin-top: var(--spacing-lg);
}

.slots-section__heading {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: var(--spacing-sm);
  padding-bottom: 0.5em;
  border-bottom: 1px solid var(--color-border);
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
  gap: 0.5rem;
  margin-top: var(--spacing-sm);
}

.time-slot {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.7em 0.3em;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  border: 1px solid var(--color-border);
  background: var(--color-white);
  color: var(--color-black);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
  border-radius: 0;
  user-select: none;
}

.time-slot:hover:not(.disabled) {
  background: var(--color-black);
  color: var(--color-white);
  border-color: var(--color-black);
}

.time-slot.selected {
  background: var(--color-gold);
  border-color: var(--color-gold);
  color: var(--color-white);
  font-weight: 600;
}

.time-slot.disabled {
  background: var(--color-light);
  color: var(--color-border);
  cursor: not-allowed;
  border-color: var(--color-light);
}

.slots-loading {
  text-align: center;
  color: var(--color-muted);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  padding: var(--spacing-md) 0;
}

.slots-empty {
  font-size: 0.85rem;
  color: var(--color-muted);
  padding: var(--spacing-sm) 0;
}

/* ------------------------------------------------
   Reservation Confirm Box
   ------------------------------------------------ */
.confirm-box {
  border: 1px solid var(--color-border);
  padding: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.confirm-box__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.6em 0;
  border-bottom: 1px solid var(--color-light);
  font-size: 0.88rem;
}

.confirm-box__row:last-child {
  border-bottom: none;
}

.confirm-box__label {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
  font-weight: 600;
}

.confirm-box__value {
  font-weight: 500;
}

/* ------------------------------------------------
   Admin Timeline
   ------------------------------------------------ */
.timeline {
  position: relative;
  padding-left: 2rem;
  margin-top: var(--spacing-md);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--color-border);
}

.timeline-item {
  position: relative;
  margin-bottom: 1.5rem;
  padding: var(--spacing-sm) var(--spacing-sm);
  border: 1px solid var(--color-border);
  background: var(--color-white);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -2rem;
  top: 1.2rem;
  width: 9px;
  height: 9px;
  border: 2px solid var(--color-gold);
  background: var(--color-white);
  transform: translateX(-50%);
}

.timeline-time {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--color-gold);
  text-transform: uppercase;
  margin-bottom: 0.3em;
}

.timeline-name {
  font-family: var(--font-serif);
  font-size: 1rem;
  margin-bottom: 0.2em;
}

.timeline-meta {
  font-size: 0.78rem;
  color: var(--color-muted);
}

.timeline-actions {
  margin-top: 0.75em;
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

/* ステータスバッジ */
.badge {
  display: inline-block;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.25em 0.7em;
  border-radius: 0;
}

.badge--confirmed  { border: 1px solid var(--color-gold);  color: var(--color-gold); }
.badge--pending    { border: 1px solid var(--color-muted); color: var(--color-muted); }
.badge--completed  { border: 1px solid var(--color-success); color: var(--color-success); }
.badge--cancelled  { border: 1px solid var(--color-error);  color: var(--color-error); }

/* ------------------------------------------------
   Table
   ------------------------------------------------ */
.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.86rem;
}

thead th {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-muted);
  padding: 0.75em 1em;
  text-align: left;
  border-bottom: 2px solid var(--color-border);
}

tbody td {
  padding: 0.9em 1em;
  border-bottom: 1px solid var(--color-light);
  vertical-align: middle;
}

tbody tr:hover {
  background: var(--color-light);
}

/* ------------------------------------------------
   Alerts / Flash Messages
   ------------------------------------------------ */
.alert {
  padding: 0.9em 1.2em;
  border-left: 3px solid var(--color-black);
  background: var(--color-light);
  font-size: 0.85rem;
  margin-bottom: var(--spacing-sm);
}

.alert--success {
  border-color: var(--color-success);
  color: var(--color-success);
}

.alert--error {
  border-color: var(--color-error);
  color: var(--color-error);
}

.alert--info {
  border-color: var(--color-gold);
  color: var(--color-black);
}

/* ------------------------------------------------
   Page Header (Interior)
   ------------------------------------------------ */
.page-header {
  padding: var(--spacing-lg) 0 var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--spacing-lg);
}

.page-header__eyebrow {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 0.5em;
}

.page-header__title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
}

/* ------------------------------------------------
   Step Indicator
   ------------------------------------------------ */
.steps {
  display: flex;
  align-items: center;
  gap: 0;
  margin-bottom: var(--spacing-lg);
  overflow-x: auto;
}

.step {
  display: flex;
  align-items: center;
  gap: 0.6em;
  flex-shrink: 0;
}

.step-num {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: 700;
  border: 1px solid var(--color-border);
  color: var(--color-muted);
  flex-shrink: 0;
}

.step-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.step.active .step-num {
  background: var(--color-black);
  border-color: var(--color-black);
  color: var(--color-white);
}

.step.active .step-label {
  color: var(--color-black);
}

.step.done .step-num {
  background: var(--color-gold);
  border-color: var(--color-gold);
  color: var(--color-white);
}

.step-divider {
  flex: 1;
  height: 1px;
  background: var(--color-border);
  min-width: 30px;
  margin: 0 0.5em;
}

/* ------------------------------------------------
   Divider
   ------------------------------------------------ */
.divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--spacing-md) 0;
}

.divider--gold {
  border-color: var(--color-gold);
}

/* ------------------------------------------------
   Footer
   ------------------------------------------------ */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-md) 0;
  margin-top: var(--spacing-xl);
}

.site-footer__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.72rem;
  color: var(--color-muted);
  letter-spacing: 0.1em;
}

/* ------------------------------------------------
   Auth Pages
   ------------------------------------------------ */
.auth-wrap {
  min-height: calc(100vh - 72px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg) var(--spacing-md);
}

.auth-box {
  width: 100%;
  max-width: 440px;
  border: 1px solid var(--color-border);
  padding: var(--spacing-lg);
}

.auth-box__logo {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-align: center;
  margin-bottom: var(--spacing-md);
}

.auth-box__logo span {
  color: var(--color-gold);
}

.auth-box__title {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  text-align: center;
  margin-bottom: var(--spacing-md);
}

.auth-switch {
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-muted);
  margin-top: var(--spacing-sm);
}

.auth-switch a {
  color: var(--color-gold);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}

.auth-switch a:hover {
  border-color: var(--color-gold);
}

/* ------------------------------------------------
   Admin Layout
   ------------------------------------------------ */
.admin-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: calc(100vh - 72px);
}

.admin-sidebar {
  border-right: 1px solid var(--color-border);
  padding: var(--spacing-md) 0;
}

.admin-sidebar__title {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-muted);
  padding: 0 var(--spacing-sm) 0.75em;
  margin-bottom: 0.5em;
  border-bottom: 1px solid var(--color-border);
}

.admin-nav a {
  display: flex;
  align-items: center;
  gap: 0.6em;
  padding: 0.7em var(--spacing-sm);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--color-black);
  transition: background var(--transition), color var(--transition);
}

.admin-nav a:hover,
.admin-nav a.active {
  background: var(--color-light);
  color: var(--color-gold);
}

.admin-content {
  padding: var(--spacing-md) var(--spacing-lg);
  overflow-x: hidden;
}

/* ------------------------------------------------
   Karte (Electronic Record)
   ------------------------------------------------ */
.karte-card {
  border: 1px solid var(--color-border);
  padding: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.karte-card__date {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 0.5em;
}

.karte-photos {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75em;
}

.karte-photo {
  width: 90px;
  height: 90px;
  object-fit: cover;
  border: 1px solid var(--color-border);
}

/* ------------------------------------------------
   Responsive — Mobile First
   ------------------------------------------------ */
@media (max-width: 900px) {
  .admin-layout {
    grid-template-columns: 1fr;
  }

  .admin-sidebar {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-sm) 0 0;
    overflow: hidden; /* はみ出し防止 */
  }

  .admin-sidebar__title {
    display: none; /* モバイルでは非表示 */
  }

  .admin-nav {
    display: flex;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding: 0 0 0.5em;
    /* スクロールバー非表示（見た目をきれいに） */
    scrollbar-width: none;
  }

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

  .admin-nav a {
    white-space: nowrap;
    padding: 0.65em 1.1em;
    flex-shrink: 0;
    border-bottom: 2px solid transparent;
    background: none;
  }

  .admin-nav a:hover,
  .admin-nav a.active {
    background: none;
    border-bottom-color: var(--color-gold);
    color: var(--color-gold);
  }

  .admin-content {
    padding: var(--spacing-md);
  }

  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .site-nav {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .site-header__inner {
    height: 60px;
  }

  .site-logo {
    font-size: 1.1rem;
  }

  .auth-box {
    border: none;
    padding: var(--spacing-sm) 0;
  }

  .confirm-box__row {
    flex-direction: column;
    gap: 0.2em;
  }

  .site-footer__inner {
    flex-direction: column;
    gap: 0.5em;
    text-align: center;
  }

  /* メニューリスト モバイル調整 */
  .menu-list {
    border-radius: 0;
  }

  .menu-list-item {
    padding: 0;
  }

  .menu-list__radio-col {
    padding: 0 0.8rem;
  }

  .menu-list__body {
    padding: 1em 0;
  }

  .menu-list__name {
    font-size: 0.95rem;
    white-space: normal; /* 折り返し許可 */
    overflow: visible;
    text-overflow: unset;
  }

  .menu-list__desc {
    font-size: 0.8rem;
    -webkit-line-clamp: 3;
  }

  .menu-list__meta {
    padding: 1em 0.8rem 1em 0.5rem;
    gap: 0.3em;
  }

  .menu-list__price {
    font-size: 0.9rem;
  }

  .menu-list__duration {
    font-size: 0.7rem;
  }

  /* タイムスロット モバイル調整 */
  .calendar-grid {
    grid-template-columns: repeat(auto-fill, minmax(72px, 1fr));
    gap: 0.4rem;
  }

  .time-slot {
    padding: 0.8em 0.2em;
    font-size: 0.82rem;
  }

  /* ステップ indicator */
  .steps {
    gap: 0;
  }

  .step-label {
    display: none;
  }

  /* ページ全体のコンテンツ余白 */
  .container--narrow {
    padding: 0 1rem;
  }

  /* 確認ボックス */
  .confirm-box {
    padding: var(--spacing-sm);
  }

  /* ボタン */
  .btn {
    font-size: 0.8rem;
    padding: 0.85em 1.6em;
  }
}

@media (max-width: 600px) {
  :root {
    --spacing-md: 1.2rem;
    --spacing-lg: 2.2rem;
    --spacing-xl: 3rem;
  }
}