/* ==========================================================================
   guesthouse 風音 -kazane-  style.css
   構成: reset → 変数 → base → components → sections → utilities
   ========================================================================== */

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

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

body {
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

ul,
ol {
  list-style: none;
}

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

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
}

button {
  cursor: pointer;
}

/* --------------------------------------------------------------------------
   2. 変数
   -------------------------------------------------------------------------- */
:root {
  --color-bg: #F4F3EE;
  --color-dark: #2B3B32;
  --color-dark-2: #22302A;
  --color-text: #333934;
  --color-text-invert: #E9E7DE;
  --color-text-weak: #8A8F88;
  --color-accent: #8F6B4A;
  --color-accent-hover: #75563B;
  --color-line: #D5D3C8;
  --color-line-invert: rgba(233, 231, 222, 0.3);

  --font-ja: "Shippori Mincho", "Hiragino Mincho ProN", serif;
  --font-en: "Cormorant Garamond", Georgia, serif;

  --ease-quiet: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 1.2s;
  --dur-hover: 0.3s;

  --header-h: 60px;
}

@media (min-width: 1024px) {
  :root {
    --header-h: 76px;
  }
}

/* --------------------------------------------------------------------------
   3. Base
   -------------------------------------------------------------------------- */
body {
  font-family: var(--font-ja);
  font-size: 14px;
  line-height: 2.2;
  color: var(--color-text);
  background-color: var(--color-bg);
  opacity: 0;
  transition: opacity 0.8s var(--ease-quiet);
}

body.is-loaded {
  opacity: 1;
}

body.menu-open {
  overflow: hidden;
}

@media (min-width: 768px) {
  body {
    font-size: 15px;
  }
}

section {
  scroll-margin-top: 92px;
}

/* --------------------------------------------------------------------------
   4. Components
   -------------------------------------------------------------------------- */

/* container */
.container {
  width: 100%;
  margin-inline: auto;
  padding-inline: 24px;
}

.container--narrow  { max-width: calc(640px + 48px); }
.container--medium  { max-width: calc(720px + 48px); }
.container--wide    { max-width: calc(1000px + 48px); }
.container--full    { max-width: calc(1080px + 48px); }
.container--reserve { max-width: calc(560px + 48px); }

/* section-title */
.section-title {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 48px;
}

.section-title__en {
  font-family: var(--font-en);
  font-size: 26px;
  letter-spacing: 0.12em;
  line-height: 1.2;
}

.section-title__ja {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--color-text-weak);
}

.section-title--center {
  align-items: center;
  text-align: center;
}

.section-title--invert .section-title__en {
  color: var(--color-text-invert);
}

.section-title--invert .section-title__ja {
  color: var(--color-line-invert);
  color: rgba(233, 231, 222, 0.55);
}

@media (min-width: 768px) {
  .section-title__en {
    font-size: 36px;
  }
  .section-title__ja {
    font-size: 13px;
  }
}

/* btn */
.btn {
  display: inline-block;
  padding: 16px 40px;
  background-color: var(--color-accent);
  color: #fff;
  font-size: 14px;
  letter-spacing: 0.1em;
  text-align: center;
  transition: background-color var(--dur-hover) var(--ease-quiet);
}

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

.btn--wide {
  display: block;
  width: 100%;
}

/* fade-in */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity var(--dur) var(--ease-quiet),
    transform var(--dur) var(--ease-quiet);
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* section--dark */
.section--dark {
  background-color: var(--color-dark);
  color: var(--color-text-invert);
}

/* --------------------------------------------------------------------------
   5. Sections
   -------------------------------------------------------------------------- */

/* Header
   -------------------------------------------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-h);
  background-color: rgba(244, 243, 238, 0.9);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-line);
  z-index: 100;
}

.header__inner {
  display: flex;
  align-items: center;
  height: 100%;
  padding-inline: 24px;
}

.header__logo {
  font-size: 18px;
  letter-spacing: 0.08em;
  line-height: 1;
}

.header__logo span {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--color-text-weak);
  margin-left: 8px;
}

.global-nav {
  display: none;
}

.reserve-btn {
  display: none;
}

@media (min-width: 1024px) {
  .header__inner {
    padding-inline: 32px;
  }

  .global-nav {
    display: block;
    margin-left: auto;
  }

  .global-nav__list {
    display: flex;
    gap: 28px;
  }

  .global-nav__list a {
    font-family: var(--font-en);
    font-size: 14px;
    letter-spacing: 0.1em;
    transition: opacity var(--dur-hover) var(--ease-quiet);
  }

  .global-nav__list a:hover {
    opacity: 0.6;
  }

  .reserve-btn {
    display: inline-block;
    margin-left: 32px;
    padding: 10px 24px;
    background-color: var(--color-accent);
    color: #fff;
    font-size: 13px;
    letter-spacing: 0.1em;
    transition: background-color var(--dur-hover) var(--ease-quiet);
  }

  .reserve-btn:hover {
    background-color: var(--color-accent-hover);
  }
}

/* hamburger */
.hamburger {
  position: relative;
  width: 44px;
  height: 44px;
  margin-left: auto;
  z-index: 210;
}

.hamburger__line,
.hamburger__line::before,
.hamburger__line::after {
  position: absolute;
  left: 50%;
  width: 24px;
  height: 1px;
  background-color: currentColor;
  transition: transform 0.4s var(--ease-quiet), top 0.4s var(--ease-quiet), background-color 0.4s var(--ease-quiet);
}

.hamburger__line {
  top: 50%;
  transform: translate(-50%, -50%);
}

.hamburger__line::before,
.hamburger__line::after {
  content: "";
  left: 0;
  width: 100%;
}

.hamburger__line::before { top: -8px; }
.hamburger__line::after  { top: 8px; }

.hamburger.is-open {
  color: var(--color-text-invert);
}

.hamburger.is-open .hamburger__line {
  background-color: transparent;
}

.hamburger.is-open .hamburger__line::before {
  top: 0;
  transform: rotate(45deg);
  background-color: currentColor;
}

.hamburger.is-open .hamburger__line::after {
  top: 0;
  transform: rotate(-45deg);
  background-color: currentColor;
}

@media (min-width: 1024px) {
  .hamburger {
    display: none;
  }
}

/* mobile-menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  background-color: var(--color-dark);
  color: var(--color-text-invert);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.5s var(--ease-quiet), visibility 0.5s var(--ease-quiet);
  z-index: 200;
}

.mobile-menu.is-open {
  opacity: 1;
  visibility: visible;
}

.mobile-menu__nav {
  width: min(100%, 320px);
  padding: 24px;
  max-height: 100vh;
  overflow-y: auto;
}

.mobile-menu__list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 40px;
}

.mobile-menu__list a {
  font-family: var(--font-en);
  font-size: 20px;
  letter-spacing: 0.12em;
  line-height: 1.4;
}

.mobile-menu__list a span {
  display: block;
  font-family: var(--font-ja);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: rgba(233, 231, 222, 0.55);
}

.mobile-menu__reserve {
  display: block;
  width: 100%;
  padding: 16px;
  background-color: var(--color-accent);
  color: #fff;
  font-size: 14px;
  letter-spacing: 0.12em;
  text-align: center;
  transition: background-color var(--dur-hover) var(--ease-quiet);
}

.mobile-menu__reserve:hover {
  background-color: var(--color-accent-hover);
}

/* Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  margin-top: var(--header-h);
  height: calc(100vh - var(--header-h));
  height: calc(100svh - var(--header-h));
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
}

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.06);
}

body.is-zoomed .hero__bg img {
  transform: scale(1);
  transition: transform 10s var(--ease-quiet);
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(34, 48, 42, 0.35);
}

.hero__copy {
  position: absolute;
  top: 50%;
  right: 10%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: row;
  gap: 24px;
  color: var(--color-text-invert);
}

.vertical-copy {
  writing-mode: vertical-rl;
  text-orientation: mixed;
}

.vertical-copy--main {
  font-size: 24px;
  letter-spacing: 0.3em;
  line-height: 1.8;
  opacity: 0;
  clip-path: inset(0 0 100% 0);
}

.vertical-copy--sub {
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.2em;
  opacity: 0;
  clip-path: inset(0 0 100% 0);
}

.hero.is-copy-visible .vertical-copy--main {
  opacity: 1;
  clip-path: inset(0);
  transition: opacity 1.4s var(--ease-quiet), clip-path 1.4s var(--ease-quiet);
}

.hero.is-copy-visible .vertical-copy--sub {
  opacity: 1;
  clip-path: inset(0);
  transition: opacity 1.4s var(--ease-quiet) 0.3s, clip-path 1.4s var(--ease-quiet) 0.3s;
}

@media (min-width: 768px) {
  .vertical-copy--main {
    font-size: 32px;
  }
}

/* scroll-indicator */
.scroll-indicator {
  position: absolute;
  bottom: 0;
  left: 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: var(--color-text-invert);
}

.scroll-indicator__label {
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.2em;
}

.scroll-indicator__line {
  position: relative;
  width: 1px;
  height: 64px;
  overflow: hidden;
}

.scroll-indicator__line::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--color-text-invert);
  animation: scrollLine 2.4s var(--ease-quiet) infinite;
}

@keyframes scrollLine {
  0%   { transform: scaleY(0); transform-origin: top; }
  45%  { transform: scaleY(1); transform-origin: top; }
  55%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* Concept
   -------------------------------------------------------------------------- */
.concept {
  text-align: center;
}

.concept__copy {
  font-size: 17px;
  line-height: 2.4;
  letter-spacing: 0.06em;
}

.concept__divider {
  display: block;
  width: 1px;
  height: 48px;
  margin: 40px auto;
  background-color: var(--color-text-weak);
}

.concept__note {
  color: var(--color-text-weak);
  font-size: 13px;
}

@media (min-width: 768px) {
  .concept__copy {
    font-size: 20px;
  }
  .concept__note {
    font-size: 14px;
  }
}

/* Stay
   -------------------------------------------------------------------------- */
.stay__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.stay__grid .photo-card__img {
  overflow: hidden;
  margin-bottom: 20px;
}

.stay__grid .photo-card__img img {
  aspect-ratio: 3 / 4;
  width: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-quiet);
}

.stay__grid .photo-card:hover .photo-card__img img {
  transform: scale(1.04);
}

.stay__grid .photo-card__title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 12px;
  font-weight: 500;
}

.stay__grid .photo-card__title span:first-child {
  font-family: var(--font-en);
  font-size: 14px;
  letter-spacing: 0.14em;
  color: var(--color-text-weak);
}

.stay__grid .photo-card__title span:last-child {
  font-size: 18px;
  letter-spacing: 0.12em;
}

@media (min-width: 768px) {
  .stay__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Divider
   -------------------------------------------------------------------------- */
.divider {
  width: 100%;
  height: 40vh;
  background-size: cover;
  background-position: center;
  background-attachment: scroll;
}

.divider--01 {
  background-image: url("../img/divider-01.png");
}

.divider--02 {
  background-image: url("../img/divider-02.png");
}

@media (min-width: 1024px) {
  .divider {
    height: 60vh;
    background-attachment: fixed;
  }
}

/* Rooms
   -------------------------------------------------------------------------- */
.rooms__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.rooms__grid .photo-card__img {
  overflow: hidden;
  margin-bottom: 20px;
}

.rooms__grid .photo-card__img img {
  aspect-ratio: 4 / 3;
  width: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-quiet);
}

.rooms__grid .photo-card:hover .photo-card__img img {
  transform: scale(1.04);
}

.rooms__grid .photo-card__title {
  font-size: 18px;
  font-weight: 500;
  letter-spacing: 0.12em;
  line-height: 1.6;
}

.rooms__grid .photo-card__text span {
  display: block;
  font-size: 12px;
  color: var(--color-text-weak);
  margin-bottom: 8px;
}

.rooms__grid .photo-card__price {
  margin-top: 8px;
  font-size: 15px;
  color: var(--color-accent);
}

@media (min-width: 768px) {
  .rooms__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Food
   -------------------------------------------------------------------------- */
.food-block {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: center;
}

.food-block + .food-block {
  margin-top: 72px;
}

.food-block__photo img {
  aspect-ratio: 3 / 2;
  width: 100%;
  object-fit: cover;
}

.food-block__title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 18px;
  font-weight: 500;
  letter-spacing: 0.12em;
}

.food-block__en {
  font-family: var(--font-en);
  font-size: 14px;
  letter-spacing: 0.14em;
  color: var(--color-text-weak);
}

.food-block__body p + p {
  margin-top: 16px;
}

@media (min-width: 768px) {
  .food-block {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
  }

  .food-block--reverse .food-block__photo {
    order: 2;
  }

  .food-block--reverse .food-block__body {
    order: 1;
  }
}

/* Bath
   -------------------------------------------------------------------------- */
.bath__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}

.bath__photo img {
  aspect-ratio: 3 / 2;
  width: 100%;
  object-fit: cover;
}

.bath__body .section-title {
  margin-bottom: 24px;
}

.bath__body p + p {
  margin-top: 16px;
}

.bath__note {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--color-line-invert);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: rgba(233, 231, 222, 0.75);
}

@media (min-width: 768px) {
  .bath__inner {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
  }
}

/* Access
   -------------------------------------------------------------------------- */
.access__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.info-table__row {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--color-line);
}

.info-table__row:first-child {
  border-top: 1px solid var(--color-line);
}

.info-table__row dt {
  font-weight: 500;
  letter-spacing: 0.08em;
}

.map-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 280px;
  border: 1px solid var(--color-line);
  color: var(--color-text-weak);
  font-family: var(--font-en);
  font-size: 14px;
  letter-spacing: 0.14em;
}

@media (min-width: 768px) {
  .access__inner {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
  }
}

/* FAQ
   -------------------------------------------------------------------------- */
.faq-item {
  border-bottom: 1px solid var(--color-line);
}

.faq-item:first-child {
  border-top: 1px solid var(--color-line);
}

.faq-item__question {
  display: flex;
  align-items: baseline;
  gap: 16px;
  width: 100%;
  padding: 24px 0;
  text-align: left;
}

.faq-item__num {
  font-family: var(--font-en);
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--color-text-weak);
  flex-shrink: 0;
}

.faq-item__q-text {
  font-size: 15px;
  letter-spacing: 0.04em;
  line-height: 1.8;
}

.faq-item__icon {
  margin-left: auto;
  flex-shrink: 0;
  font-size: 14px;
  color: var(--color-text-weak);
}

.faq-item__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease-quiet);
}

.faq-item__answer p {
  padding: 0 0 24px 40px;
  color: #5C615B;
  font-size: 14px;
}

/* Reserve
   -------------------------------------------------------------------------- */
.reserve {
  text-align: center;
}

.reserve__lead {
  margin-bottom: 48px;
  color: rgba(233, 231, 222, 0.85);
}

.reserve-form {
  text-align: left;
}

.reserve-form__field {
  margin-bottom: 24px;
}

.reserve-form__field label {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  letter-spacing: 0.08em;
}

.reserve-form__req {
  display: inline-block;
  margin-left: 8px;
  font-size: 11px;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
  padding: 0 6px;
  line-height: 1.8;
}

.reserve-form__field input,
.reserve-form__field select,
.reserve-form__field textarea {
  display: block;
  width: 100%;
  padding: 12px 14px;
  background-color: rgba(233, 231, 222, 0.08);
  border: 1px solid var(--color-line-invert);
  color: var(--color-text-invert);
  line-height: 1.6;
  transition: border-color var(--dur-hover) var(--ease-quiet);
  border-radius: 0;
}

.reserve-form__field select option {
  color: var(--color-text);
  background-color: var(--color-bg);
}

.reserve-form__field input:focus,
.reserve-form__field select:focus,
.reserve-form__field textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

.reserve-form__field input[type="date"] {
  color-scheme: dark;
}

.reserve__done {
  margin-top: 32px;
  line-height: 2.4;
}

/* Footer
   -------------------------------------------------------------------------- */
.footer {
  padding: 64px 24px;
  background-color: var(--color-dark-2);
  color: var(--color-text-invert);
  text-align: center;
}

.footer__name {
  font-size: 18px;
  letter-spacing: 0.12em;
}

.footer__name span {
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: rgba(233, 231, 222, 0.6);
  margin-left: 8px;
}

.footer__address {
  margin-top: 12px;
  font-size: 12px;
  color: rgba(233, 231, 222, 0.75);
}

.footer__sns {
  display: inline-block;
  margin-top: 16px;
  font-family: var(--font-en);
  font-size: 13px;
  letter-spacing: 0.1em;
  transition: opacity var(--dur-hover) var(--ease-quiet);
}

.footer__sns:hover {
  opacity: 0.6;
}

.footer__copyright {
  margin-top: 32px;
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: rgba(233, 231, 222, 0.5);
}

/* to-top */
.to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 48px;
  height: 48px;
  background-color: var(--color-dark);
  color: var(--color-text-invert);
  border: 1px solid var(--color-line-invert);
  font-size: 16px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-hover) var(--ease-quiet), visibility var(--dur-hover) var(--ease-quiet), background-color var(--dur-hover) var(--ease-quiet);
  z-index: 90;
}

.to-top.is-visible {
  opacity: 1;
  visibility: visible;
}

.to-top:hover {
  background-color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   6. Utilities
   -------------------------------------------------------------------------- */
.py-section {
  padding-top: 88px;
  padding-bottom: 88px;
}

@media (min-width: 1024px) {
  .py-section {
    padding-top: 160px;
    padding-bottom: 160px;
  }
}

/* reduced motion */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0s !important;
  }

  body,
  .fade-in,
  .vertical-copy--main,
  .vertical-copy--sub {
    opacity: 1 !important;
    transform: none !important;
    clip-path: none !important;
  }

  .hero__bg img {
    transform: none !important;
  }
}