@charset "UTF-8";

/* ==========================================================================
   Variables
   ========================================================================== */
:root {
  /* Colors */
  --color-base: #F9F9F7;
  --color-main: #CebCb2;
  --color-accent: #D4Af37;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-white: #ffffff;
  --color-overlay: rgba(0, 0, 0, 0.6);

  /* Fonts */
  --font-serif: "Shippori Mincho", serif;
  --font-sans: "Zen Kaku Gothic New", sans-serif;
  --font-english: "Cormorant Garamond", serif;
  --font-num: "Lato", sans-serif;

  /* Mapped Fonts */
  --font-heading: var(--font-serif);
  /* Defined for use in headings */

  /* Sizes */
  --header-height-sp: 60px;
  --header-height-pc: 80px;

  /* Z-index */
  --z-loading: 9999;
  --z-header: 1000;
  --z-drawer: 900;
  --z-overlay: 800;

  /* Animation */
  --easing: cubic-bezier(0.25, 0.1, 0.25, 1);
  --transition-duration: 0.4s;
}

/* ==========================================================================
   Base
   ========================================================================== */
body {
  font-family: var(--font-sans);
  background-color: var(--color-base);
  color: var(--color-text);
  line-height: 1.8;
  /* clamp(min, val, max) for fluid typography */
  font-size: clamp(0.875rem, 2vw, 1rem);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  width: 100%;
  overflow-x: hidden;
}

/* Skip Link for Accessibility */
.skip-link {
  position: absolute;
  top: -9999px;
  left: 0;
  background: var(--color-accent);
  color: var(--color-white);
  padding: 1rem;
  z-index: 10000;
  transition: top 0.3s;
}

.skip-link:focus {
  top: 0;
}

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

/* ==========================================================================
   Layout
   ========================================================================== */
.l-container {
  width: 100%;
  max-width: 1280px;
  /* 1280px max width */
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  /* 24px */
  padding-right: 1.5rem;
}

@media screen and (min-width: 768px) {
  .l-container {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

/* ==========================================================================
   Header
   ========================================================================== */
.l-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: auto;
  z-index: var(--z-header);
  padding: 1.5rem 0;
  transition: background-color var(--transition-duration) var(--easing), padding var(--transition-duration) var(--easing), box-shadow var(--transition-duration);
}

/* Scrolled State Modifier */
.l-header.is-scrolled {
  background-color: rgba(249, 249, 247, 0.9);
  /* base color with opacity */
  backdrop-filter: blur(10px);
  padding: 1rem 0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.l-header__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.l-header__logo a {
  font-family: var(--font-english);
  font-size: 1.5rem;
  letter-spacing: 0.1em;
  color: var(--color-text);
  /* Default mobile color */
  transition: color var(--transition-duration);
}

/* Desktop Navigation */
.l-header__nav {
  display: none;
}

/* Hamburger Menu Button */
.l-header__toggle {
  display: block;
  position: relative;
  width: 30px;
  height: 20px;
  cursor: pointer;
  z-index: calc(var(--z-drawer) + 1);
  background: none;
  border: none;
  padding: 0;
}

.l-header__toggle span {
  display: block;
  position: absolute;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: var(--color-text);
  transition: all var(--transition-duration) var(--easing);
}

.l-header__toggle span:nth-of-type(1) {
  top: 0;
}

.l-header__toggle span:nth-of-type(2) {
  top: 50%;
  transform: translateY(-50%);
}

.l-header__toggle span:nth-of-type(3) {
  bottom: 0;
}

/* Hamburger Active State */
.l-header__toggle.is-active span:nth-of-type(1) {
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
}

.l-header__toggle.is-active span:nth-of-type(2) {
  opacity: 0;
}

.l-header__toggle.is-active span:nth-of-type(3) {
  bottom: 50%;
  transform: translateY(50%) rotate(-45deg);
}

/* Mobile Drawer */
.l-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: var(--color-base);
  z-index: var(--z-drawer);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-duration) var(--easing);
  transform: translateX(100%);
}

.l-drawer.is-active {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}

.l-drawer__nav {
  text-align: center;
}

.l-drawer__item {
  margin-bottom: 2rem;
}

.l-drawer__link {
  font-family: var(--font-english);
  font-size: 1.5rem;
  letter-spacing: 0.1em;
  color: var(--color-text);
  display: block;
  transition: color 0.3s;
}

.l-drawer__link:hover {
  color: var(--color-accent);
}

.l-drawer__btn {
  margin-top: 2rem;
  display: inline-block;
  background-color: var(--color-text);
  color: var(--color-white);
  padding: 0.75rem 2rem;
  font-size: 0.875rem;
  letter-spacing: 0.1em;
  font-family: var(--font-num);
  text-transform: uppercase;
}

/* Desktop Styles for Header */
@media screen and (min-width: 768px) {
  .l-header__nav {
    display: flex;
    align-items: center;
    gap: 2rem;
  }

  .l-header__nav-link {
    font-family: var(--font-english);
    font-size: 0.875rem;
    letter-spacing: 0.1em;
    /* Default color based on top page white text logic, 
       but simplified here. Classes will handle color changes */
    color: var(--color-text);
    transition: color 0.3s;
    position: relative;
  }

  /* Top Page specific header text color handling needs specific modifier */
  body.p-front-page .l-header:not(.is-scrolled) .l-header__logo a,
  body.p-front-page .l-header:not(.is-scrolled) .l-header__nav-link {
    color: var(--color-white);
  }

  /* When drawer is open, force text color to dark */
  body.is-drawer-open .l-header__logo a {
    color: var(--color-text) !important;
  }

  .l-header__nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-accent);
    transition: width 0.3s;
  }

  .l-header__nav-link:hover::after {
    width: 100%;
  }

  .l-header__cta {
    display: inline-block;
    border: 1px solid var(--color-text);
    padding: 0.5rem 1.5rem;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: all 0.3s;
    color: var(--color-text);
  }

  body.p-front-page .l-header:not(.is-scrolled) .l-header__cta {
    border-color: var(--color-white);
    color: var(--color-white);
  }

  .l-header__cta:hover {
    background-color: var(--color-white);
    color: var(--color-text);
    border-color: var(--color-white);
  }

  /* Inverse hover effect when scrolled or not on front page */
  .l-header.is-scrolled .l-header__cta:hover,
  body:not(.p-front-page) .l-header__cta:hover {
    background-color: var(--color-text);
    color: var(--color-white);
    border-color: var(--color-text);
  }

  .l-header__toggle {
    display: none;
  }

  .l-drawer {
    display: none;
    /* Hide drawer completely on desktop */
  }
}

/* ==========================================================================
   Footer
   ========================================================================== */
.l-footer {
  background-color: #f2f2ef;
  padding-top: 5rem;
  padding-bottom: 2.5rem;
}

.l-footer__grid {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  margin-bottom: 4rem;
}

@media screen and (min-width: 768px) {
  .l-footer__grid {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
  }

  .l-footer__col {
    width: 30%;
  }
}

.l-footer__logo {
  font-family: var(--font-english);
  font-size: 1.875rem;
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
}

.l-footer__desc {
  font-size: 0.875rem;
  line-height: 2;
  color: var(--color-text-light);
  margin-bottom: 1.5rem;
}

.l-footer__social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
  transition: color 0.3s;
}

.l-footer__social a:hover {
  color: var(--color-accent);
}

.l-footer__heading {
  font-family: var(--font-english);
  font-size: 1.125rem;
  letter-spacing: 0.05em;
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid #ccc;
  display: inline-block;
}

.l-footer__menu li {
  margin-bottom: 1rem;
}

.l-footer__menu a {
  font-size: 0.875rem;
  color: var(--color-text-light);
  transition: color 0.3s;
}

.l-footer__menu a:hover {
  color: var(--color-accent);
}

.l-footer__address p {
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin-bottom: 1rem;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.l-footer__address a {
  transition: color 0.3s;
}

.l-footer__address a:hover {
  color: var(--color-accent);
}

.l-footer__bottom {
  border-top: 1px solid #ccc;
  padding-top: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  font-size: 0.75rem;
  color: var(--color-text-light);
  font-family: var(--font-num);
}

@media screen and (min-width: 768px) {
  .l-footer__bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

.l-footer__links {
  display: flex;
  gap: 1.5rem;
}

.l-footer__links a:hover {
  color: var(--color-text);
}

/* ==========================================================================
   Loading Screen
   ========================================================================== */
.l-loading {
  position: fixed;
  inset: 0;
  z-index: var(--z-loading);
  background-color: var(--color-base);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  pointer-events: none;
  /* Prevent interaction */
  transition: opacity 0.8s ease-in-out, visibility 0.8s ease-in-out;
}

.l-loading.is-hidden {
  opacity: 0;
  visibility: hidden;
}

.l-loading__logo {
  font-family: var(--font-english);
  font-size: 2.5rem;
  letter-spacing: 0.1em;
  color: var(--color-text);
  margin-bottom: 1rem;
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.8s, transform 0.8s;
}

.l-loading.is-active .l-loading__logo {
  opacity: 1;
  transform: scale(1);
}

@media screen and (min-width: 768px) {
  .l-loading__logo {
    font-size: 3rem;
  }
}

.l-loading__line {
  width: 0;
  height: 1px;
  background-color: var(--color-accent);
  transition: width 0.8s ease-out 0.5s;
  /* Delay added */
}

.l-loading.is-active .l-loading__line {
  width: 100px;
}

/* ==========================================================================
   Components
   ========================================================================== */
/* Section Title */
.c-section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.c-section-title__en {
  display: block;
  font-family: var(--font-english);
  color: var(--color-accent);
  letter-spacing: 0.2em;
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
}

.c-section-title__ja {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.75rem;
  line-height: 1.4;
}

@media screen and (min-width: 768px) {
  .c-section-title {
    margin-bottom: 5rem;
  }

  .c-section-title__ja {
    font-size: 2.25rem;
  }
}

/* Buttons */
.c-btn {
  display: inline-block;
  padding: 1rem 3rem;
  background-color: transparent;
  border: 1px solid var(--color-text);
  color: var(--color-text);
  font-family: var(--font-english);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: 0.875rem;
  transition: all 0.3s;
  cursor: pointer;
  text-align: center;
}

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

.c-btn--primary {
  background-color: var(--color-text);
  color: var(--color-white);
}

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

.c-btn--wide {
  width: 100%;
  max-width: 300px;
}

/* Page Header (Common for sub pages) */
.c-page-header {
  position: relative;
  height: 40vh;
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-size: cover;
  background-position: center;
  overflow: hidden;
}

.c-page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.3);
}

.c-page-header__inner {
  position: relative;
  z-index: 1;
  text-align: center;
  color: var(--color-white);
  padding: 0 1rem;
}

.c-page-header__title {
  font-family: var(--font-english);
  font-size: 2.5rem;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.c-page-header__subtitle {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  letter-spacing: 0.1em;
}

@media screen and (min-width: 768px) {
  .c-page-header__title {
    font-size: 3.5rem;
  }
}

/* Fade In Animation Utilities */
.u-fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--easing), transform 0.8s var(--easing);
}

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

/* Stagger delay classes generated for 1-10 items */
.u-delay-100 {
  transition-delay: 0.1s;
}

.u-delay-200 {
  transition-delay: 0.2s;
}

.u-delay-300 {
  transition-delay: 0.3s;
}

.u-delay-400 {
  transition-delay: 0.4s;
}

.u-delay-500 {
  transition-delay: 0.5s;
}

/* Desktop/Mobile Utilities */
.u-desktop {
  display: none;
}

@media screen and (min-width: 768px) {
  .u-desktop {
    display: block;
  }

  .u-mobile {
    display: none;
  }
}