/* ============================================================
   Reservation Page — reservation.css
   style.css のCSS変数を継承
============================================================ */

/* ============================================================
   Summary Bar（スティッキー）
============================================================ */
.rsv-summary {
  position: sticky;
  top: var(--header-h);
  z-index: 90;
  background-color: rgba(13, 13, 13, 0.95);
  border-bottom: 1px solid rgba(201, 168, 76, 0.2);
  padding: 10px 0;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.rsv-summary__list {
  display: flex;
  gap: 8px 20px;
  flex-wrap: wrap;
  align-items: center;
}

.rsv-summary__item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  letter-spacing: 0.06em;
}

.rsv-summary__label {
  color: var(--color-white2);
  opacity: 0.6;
}

.rsv-summary__value {
  font-family: var(--font-serif-jp);
  color: var(--color-gold);
  font-size: 12px;
}

@media (min-width: 640px) {
  .rsv-summary__list {
    gap: 0;
    justify-content: space-around;
  }
  .rsv-summary__item {
    font-size: 13px;
  }
}

/* ============================================================
   Flow / Step
============================================================ */
.rsv-flow {
  display: flex;
  flex-direction: column;
}

.rsv-step {
  padding: 72px 0;
  opacity: 0;
  pointer-events: none;
  transform: translateY(24px);
  overflow: hidden;
  max-height: 0;
  transition: none;
}

.rsv-step--active {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
  max-height: none;
}

/* 偶数ステップは gray 背景 */
#rsv-step1 { background-color: var(--color-black); }
#rsv-step2 { background-color: var(--color-gray); }
#rsv-step3 { background-color: var(--color-black); }
#rsv-step4 { background-color: var(--color-gray); }
#rsv-step5 { background-color: var(--color-black); }
#rsv-step6 { background-color: var(--color-gray); }

/* ステップ見出し */
.rsv-step__head {
  text-align: center;
  margin-bottom: 48px;
}

.rsv-step__num {
  font-family: var(--font-serif-en);
  font-size: 11px;
  letter-spacing: 0.4em;
  color: var(--color-gold);
  margin-bottom: 12px;
}

.rsv-step__num span {
  font-size: 18px;
}

.rsv-step__title {
  font-family: var(--font-serif-jp);
  font-size: clamp(16px, 3vw, 22px);
  color: var(--color-white);
  letter-spacing: 0.08em;
  line-height: 1.6;
}

/* ============================================================
   STEP 1：プランカード
============================================================ */
.rsv-plan-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  max-width: 560px;
  margin: 0 auto;
}

@media (min-width: 560px) {
  .rsv-plan-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* ============================================================
   共通カード
============================================================ */
.rsv-card {
  background-color: var(--color-gray2);
  border: 1px solid transparent;
  padding: 28px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.25s ease, background-color 0.25s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  width: 100%;
}

.rsv-card:hover {
  border-color: rgba(201, 168, 76, 0.5);
}

.rsv-card.is-selected {
  border-color: var(--color-gold);
  background-color: rgba(201, 168, 76, 0.06);
}

.rsv-card__en {
  font-family: var(--font-serif-en);
  font-size: 13px;
  letter-spacing: 0.3em;
  color: var(--color-gold);
}

.rsv-card__name {
  font-family: var(--font-serif-jp);
  font-size: clamp(15px, 3vw, 18px);
  color: var(--color-white);
  letter-spacing: 0.06em;
  font-weight: 600;
}

.rsv-card__sub {
  font-size: 12px;
  color: var(--color-white2);
  letter-spacing: 0.04em;
  line-height: 1.6;
}

/* ============================================================
   STEP 2：コースカード
============================================================ */
.rsv-course-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  max-width: 720px;
  margin: 0 auto;
}

@media (min-width: 560px) {
  .rsv-course-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.rsv-card--course {
  padding: 24px 16px;
  gap: 6px;
}

.rsv-card__tag {
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--color-gold);
  border: 1px solid var(--color-gold);
  padding: 2px 10px;
  font-family: var(--font-serif-jp);
}

.rsv-card__price {
  font-family: var(--font-serif-en);
  font-size: clamp(18px, 4vw, 24px);
  color: var(--color-gold);
  letter-spacing: 0.05em;
}

.rsv-card__note {
  font-size: 11px;
  color: var(--color-white2);
  letter-spacing: 0.04em;
}

/* ============================================================
   STEP 3：カレンダー
============================================================ */
.rsv-calendar {
  max-width: 400px;
  margin: 0 auto;
}

.rsv-calendar__nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.rsv-calendar__nav-btn {
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-gold);
  color: var(--color-gold);
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.rsv-calendar__nav-btn:hover {
  background-color: var(--color-gold);
  color: var(--color-black);
}

.rsv-calendar__month {
  font-family: var(--font-serif-en);
  font-size: 18px;
  letter-spacing: 0.15em;
  color: var(--color-white);
}

.rsv-calendar__weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
  margin-bottom: 4px;
}

.rsv-calendar__weekdays span {
  text-align: center;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--color-white2);
  padding: 4px 0;
}

.rsv-calendar__grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}

.rsv-cal-day {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-family: var(--font-serif-jp);
  color: var(--color-white);
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease;
}

.rsv-cal-day:hover:not(:disabled) {
  border-color: rgba(201, 168, 76, 0.5);
}

.rsv-cal-day.is-selected {
  border-color: var(--color-gold);
  color: var(--color-gold);
  background-color: rgba(201, 168, 76, 0.08);
}

.rsv-cal-day:disabled,
.rsv-cal-day.is-past {
  color: var(--color-white2);
  opacity: 0.25;
  cursor: default;
  pointer-events: none;
}

.rsv-cal-day.is-empty {
  pointer-events: none;
  border-color: transparent;
}

.rsv-cal-day.is-today {
  color: var(--color-gold);
}

/* ============================================================
   STEP 4：時間ボタン
============================================================ */
.rsv-time-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  max-width: 480px;
  margin: 0 auto;
}

.rsv-time-btn {
  width: calc(50% - 5px);
  padding: 16px 12px;
  background: transparent;
  border: 1px solid var(--color-gray2);
  color: var(--color-white);
  font-family: var(--font-serif-en);
  font-size: 16px;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease;
}

.rsv-time-btn:hover {
  border-color: rgba(201, 168, 76, 0.5);
}

.rsv-time-btn.is-selected {
  border-color: var(--color-gold);
  color: var(--color-gold);
  background-color: rgba(201, 168, 76, 0.06);
}

@media (min-width: 480px) {
  .rsv-time-btn {
    width: auto;
    min-width: 120px;
  }
}

/* ============================================================
   STEP 5：確認
============================================================ */
.rsv-confirm {
  max-width: 560px;
  margin: 0 auto;
}

.rsv-confirm__list {
  border-top: 1px solid var(--color-gray2);
  margin-bottom: 40px;
}

.rsv-confirm__row {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--color-gray2);
}

.rsv-confirm__label {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--color-gold);
  font-family: var(--font-serif-jp);
  min-width: 48px;
  flex-shrink: 0;
}

.rsv-confirm__value {
  font-family: var(--font-serif-jp);
  font-size: 15px;
  color: var(--color-white);
  letter-spacing: 0.06em;
  line-height: 1.6;
}

.rsv-confirm__actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
}

.rsv-confirm__next {
  width: 100%;
  max-width: 360px;
  padding: 18px 24px;
  background-color: var(--color-gold);
  color: var(--color-black);
  font-family: var(--font-serif-jp);
  font-size: 15px;
  letter-spacing: 0.1em;
  border: none;
  cursor: pointer;
  transition: background-color 0.25s ease;
}

.rsv-confirm__next:hover {
  background-color: var(--color-gold2);
}

.rsv-confirm__back {
  background: transparent;
  border: none;
  color: var(--color-white2);
  font-size: 13px;
  letter-spacing: 0.06em;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ============================================================
   STEP 6：フォーム
============================================================ */
.rsv-form {
  max-width: 560px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.rsv-form__group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.rsv-form__label {
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--color-white);
  display: flex;
  align-items: center;
  gap: 10px;
}

.rsv-form__required {
  background-color: var(--color-gold);
  color: var(--color-black);
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 2px;
  font-family: var(--font-serif-jp);
  letter-spacing: 0.05em;
  flex-shrink: 0;
}

.rsv-form__optional {
  font-size: 11px;
  color: var(--color-white2);
  opacity: 0.6;
  letter-spacing: 0.05em;
}

.rsv-form__input,
.rsv-form__textarea {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 0.5px solid var(--color-gold);
  color: var(--color-white);
  font-family: var(--font-serif-jp);
  font-size: 15px;
  padding: 12px 4px;
  outline: none;
  transition: border-color 0.25s ease;
  appearance: none;
  -webkit-appearance: none;
}

.rsv-form__input::placeholder,
.rsv-form__textarea::placeholder {
  color: var(--color-white2);
  opacity: 0.4;
  font-size: 14px;
}

.rsv-form__input:focus,
.rsv-form__textarea:focus {
  border-bottom-color: var(--color-white);
}

.rsv-form__textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.8;
}

.rsv-form__privacy {
  margin-top: 4px;
}

.rsv-form__privacy-label {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
}

.rsv-form__checkbox {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  margin-top: 3px;
  appearance: none;
  -webkit-appearance: none;
  border: 1px solid var(--color-gold);
  background: transparent;
  cursor: pointer;
  position: relative;
}

.rsv-form__checkbox:checked::after {
  content: '';
  position: absolute;
  inset: 2px;
  background-color: var(--color-gold);
}

.rsv-form__privacy-text {
  font-size: 13px;
  color: var(--color-white2);
  line-height: 1.7;
  letter-spacing: 0.04em;
}

.rsv-form__privacy-link {
  color: var(--color-gold);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.rsv-form__submit {
  text-align: center;
  margin-top: 8px;
}

.rsv-form__btn {
  display: inline-block;
  background-color: var(--color-gold);
  color: var(--color-black);
  font-family: var(--font-serif-jp);
  font-size: 15px;
  letter-spacing: 0.1em;
  padding: 18px 56px;
  border: none;
  cursor: pointer;
  transition: background-color 0.25s ease, opacity 0.25s ease;
}

.rsv-form__btn:hover {
  background-color: var(--color-gold2);
}

.rsv-form__btn:disabled {
  opacity: 0.5;
  cursor: default;
}

.rsv-form__error {
  text-align: center;
  color: #e05c5c;
  font-size: 13px;
  letter-spacing: 0.04em;
  line-height: 1.7;
  margin-top: 8px;
}

/* ============================================================
   サンクスメッセージ
============================================================ */
.rsv-thanks {
  max-width: 480px;
  margin: 0 auto;
  text-align: center;
  padding: 24px 0 48px;
}

.rsv-thanks__icon {
  font-size: 48px;
  color: var(--color-gold);
  margin-bottom: 24px;
}

.rsv-thanks__title {
  font-family: var(--font-serif-jp);
  font-size: clamp(18px, 3.5vw, 24px);
  color: var(--color-white);
  letter-spacing: 0.08em;
  margin-bottom: 20px;
}

.rsv-thanks__text {
  font-size: 14px;
  color: var(--color-white2);
  line-height: 2;
  letter-spacing: 0.06em;
  margin-bottom: 36px;
}

.rsv-thanks__btn {
  display: inline-block;
}