/* ==============================
Variables
============================== */
:root {
  --color-primary: #47634a;
  --color-primary-dark: #314a35;
  --color-primary-light: #dce5d9;
  --color-bg: #fdfcf8;
  --color-bg-sub: #f3efe6;
  --color-bg-green: #e9eee5;
  --color-text: #302f2b;
  --color-text-soft: #69675f;
  --color-line: #d8d2c6;
  --color-white: #ffffff;
  --font-serif: "Yu Mincho", "Hiragino Mincho ProN", "Hiragino Mincho Pro", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  --content-width: 1180px;
  --side-space: 20px;
  --section-space: clamp(88px, 14vw, 160px);
  --transition: 240ms ease;
}

/* ==============================
Base
============================== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 76px;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--color-text);
  background: var(--color-bg);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  letter-spacing: 0.035em;
  -webkit-font-smoothing: antialiased;
}

body.is-menu-open {
  overflow: hidden;
}

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

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  color: inherit;
  font: inherit;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1,
h2,
h3,
p,
figure {
  margin-top: 0;
}

:focus-visible {
  outline: 3px solid #7d9b78;
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 200;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  color: var(--color-white);
  background: var(--color-primary-dark);
  transform: translateY(-150%);
  transition: transform var(--transition);
}

.skip-link:focus {
  transform: translateY(0);
}

.section {
  padding-block: var(--section-space);
}

.section-inner {
  width: min(calc(100% - (var(--side-space) * 2)), var(--content-width));
  margin-inline: auto;
}

.section-kicker,
.eyebrow {
  margin-bottom: 12px;
  color: var(--color-primary);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.section-title {
  margin-bottom: 28px;
  font-family: var(--font-serif);
  font-size: clamp(30px, 7.4vw, 44px);
  font-weight: 500;
  line-height: 1.45;
  letter-spacing: 0.07em;
}

.section-text {
  max-width: 620px;
}

.section-text p {
  margin-bottom: 1.25em;
}

.pc-only {
  display: none;
}

/* ==============================
Header
============================== */
.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  height: 72px;
  border-bottom: 1px solid rgb(71 99 74 / 12%);
  background: rgb(253 252 248 / 94%);
  backdrop-filter: blur(12px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - (var(--side-space) * 2)), 1320px);
  height: 100%;
  margin-inline: auto;
}

.brand {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  min-height: 48px;
  line-height: 1;
}

.brand-name {
  color: var(--color-primary-dark);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 24px;
  letter-spacing: 0.08em;
}

.brand-note {
  margin-top: 7px;
  color: var(--color-text-soft);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.menu-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  min-width: 68px;
  min-height: 48px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.js .menu-toggle {
  display: flex;
}

.menu-toggle-label {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 15px;
  letter-spacing: 0.06em;
}

.menu-toggle-lines {
  position: relative;
  width: 25px;
  height: 16px;
}

.menu-toggle-lines span {
  position: absolute;
  right: 0;
  width: 25px;
  height: 1px;
  background: var(--color-text);
  transition: top var(--transition), transform var(--transition);
}

.menu-toggle-lines span:first-child { top: 4px; }
.menu-toggle-lines span:last-child { top: 12px; }
.menu-toggle[aria-expanded="true"] .menu-toggle-lines span:first-child { top: 8px; transform: rotate(42deg); }
.menu-toggle[aria-expanded="true"] .menu-toggle-lines span:last-child { top: 8px; transform: rotate(-42deg); }

.global-nav {
  position: absolute;
  top: 100%;
  right: 0;
  left: 0;
  z-index: 90;
  height: calc(100svh - 72px);
  overflow-y: auto;
  background: var(--color-bg);
}

.js .global-nav {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transition: visibility var(--transition), opacity var(--transition);
}

.js .global-nav.is-open {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

.nav-list {
  padding: 54px var(--side-space) 80px;
}

.nav-list a {
  display: flex;
  align-items: center;
  min-height: 58px;
  border-bottom: 1px solid var(--color-line);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 20px;
  letter-spacing: 0.05em;
}

/* ==============================
First View
============================== */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: min(680px, calc(100svh - 72px));
  overflow: hidden;
  background: #e8e3d9;
}

.hero-image,
.hero-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-image {
  object-fit: cover;
  object-position: 65% center;
}

.hero-overlay {
  background: linear-gradient(90deg, rgb(247 243 234 / 94%) 0%, rgb(247 243 234 / 75%) 43%, rgb(247 243 234 / 10%) 76%);
}

.hero-inner {
  position: relative;
  z-index: 2;
  width: min(calc(100% - (var(--side-space) * 2)), var(--content-width));
  margin-inline: auto;
  padding-block: 70px 100px;
}

.hero h1 {
  max-width: 820px;
  margin-bottom: 26px;
  font-family: var(--font-serif);
  font-size: clamp(35px, 9vw, 62px);
  font-weight: 500;
  line-height: 1.38;
  letter-spacing: 0.07em;
}

.hero h1 span {
  white-space: nowrap;
}

.hero-copy {
  max-width: 500px;
  margin-bottom: 30px;
  font-size: 17px;
  line-height: 1.9;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 20px;
  min-height: 48px;
  border-bottom: 1px solid var(--color-primary);
  color: var(--color-primary-dark);
  font-size: 16px;
  font-weight: 600;
  transition: gap var(--transition), color var(--transition);
}

.text-link:hover {
  gap: 28px;
  color: var(--color-primary);
}

.scroll-guide {
  position: absolute;
  z-index: 2;
  right: 20px;
  bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 14px;
  letter-spacing: 0.12em;
  writing-mode: vertical-rl;
}

.scroll-guide i {
  display: block;
  width: 1px;
  height: 42px;
  background: var(--color-primary);
}

/* ==============================
Concept
============================== */
.concept {
  background: var(--color-bg);
}

.concept-grid {
  display: grid;
  gap: 52px;
}

.concept-image-wrap {
  width: calc(100% + var(--side-space));
  margin-left: calc(var(--side-space) * -1);
}

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

.image-caption {
  margin: 12px var(--side-space) 0;
  color: var(--color-text-soft);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 14px;
  letter-spacing: 0.08em;
}

/* ==============================
Works
============================== */
.works {
  background: var(--color-bg-sub);
}

.section-heading {
  max-width: 720px;
  margin-bottom: 50px;
}

.section-heading > p:last-child {
  margin-bottom: 0;
}

.works-grid {
  display: grid;
  gap: 52px 18px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.work-image {
  overflow: hidden;
  background: #e8e5de;
}

.work-image img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  transition: transform 600ms ease;
}

.work-item:hover .work-image img {
  transform: scale(1.025);
}

.work-meta {
  padding-top: 18px;
}

.work-meta h3 {
  margin-bottom: 7px;
  font-family: var(--font-serif);
  font-size: clamp(18px, 4.8vw, 22px);
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: 0.05em;
}

.work-meta p {
  margin-bottom: 0;
  color: var(--color-text-soft);
  font-size: 16px;
  line-height: 1.75;
}

/* ==============================
About
============================== */
.about {
  background: var(--color-bg-green);
}

.about-grid {
  display: grid;
  gap: 52px;
}

.about-image {
  position: relative;
  width: calc(100% + var(--side-space));
}

.about-image::before {
  position: absolute;
  z-index: 0;
  top: -18px;
  right: 18px;
  bottom: 18px;
  left: -18px;
  border: 1px solid rgb(71 99 74 / 45%);
  content: "";
}

.about-image img {
  position: relative;
  z-index: 1;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.signature {
  margin: 28px 0 0;
  color: var(--color-primary);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 18px;
  font-style: italic;
  letter-spacing: 0.05em;
}

/* ==============================
Gallery / Instagram
============================== */
.instagram {
  background: var(--color-bg);
}

.instagram-heading {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 46px;
}

.outline-button,
.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  min-height: 52px;
  padding: 12px 24px;
  font-size: 16px;
  font-weight: 600;
  transition: color var(--transition), background-color var(--transition), border-color var(--transition), transform var(--transition);
}

.outline-button {
  border: 1px solid var(--color-primary);
  color: var(--color-primary-dark);
}

.outline-button:hover {
  color: var(--color-white);
  background: var(--color-primary);
}

.gallery-grid {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.gallery-item {
  margin-bottom: 0;
  overflow: hidden;
}

.gallery-item-large {
  grid-column: 1 / -1;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  transition: transform 600ms ease;
}

.gallery-item-large img {
  aspect-ratio: 16 / 9;
}

.gallery-item:hover img {
  transform: scale(1.025);
}

/* ==============================
Contact
============================== */
.contact {
  padding-block: clamp(84px, 14vw, 140px);
  color: var(--color-white);
  background: var(--color-primary-dark);
}

.contact-inner {
  max-width: 820px;
  text-align: center;
}

.contact .section-kicker {
  color: #c7d6c3;
}

.contact .section-title {
  margin-bottom: 22px;
}

.contact-inner > p:not(.section-kicker) {
  max-width: 620px;
  margin: 0 auto 32px;
  color: rgb(255 255 255 / 84%);
  font-size: 16px;
}

.primary-button {
  border: 1px solid var(--color-white);
  color: var(--color-primary-dark);
  background: var(--color-white);
}

.primary-button:hover {
  color: var(--color-white);
  background: transparent;
  transform: translateY(-2px);
}

/* ==============================
Footer
============================== */
.site-footer {
  padding: 60px var(--side-space) 34px;
  color: #e7e9e2;
  background: #263329;
  text-align: center;
}

.footer-inner {
  width: min(100%, var(--content-width));
  margin-inline: auto;
}

.footer-brand {
  display: inline-block;
  margin-bottom: 10px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 28px;
  letter-spacing: 0.1em;
}

.footer-inner > p:not(.copyright) {
  margin-bottom: 22px;
  color: rgb(255 255 255 / 65%);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 15px;
  letter-spacing: 0.08em;
}

.footer-instagram {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  min-height: 48px;
  border-bottom: 1px solid rgb(255 255 255 / 50%);
  font-size: 16px;
}

.copyright {
  margin: 44px 0 0;
  color: rgb(255 255 255 / 55%);
}

.copyright small {
  font-size: 14px;
}

/* ==============================
Reveal animation
============================== */
.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms ease, transform 700ms ease;
}

.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 359px) {
  .hero h1 span {
    white-space: normal;
  }
}

/* ==============================
Tablet / Desktop
============================== */
@media (min-width: 768px) {
  :root {
    --side-space: 40px;
  }

  body {
    font-size: 17px;
  }

  .pc-only {
    display: initial;
  }

  .site-header {
    height: 82px;
  }

  .menu-toggle,
  .js .menu-toggle {
    display: none;
  }

  .global-nav,
  .js .global-nav {
    position: static;
    height: auto;
    visibility: visible;
    overflow: visible;
    opacity: 1;
    background: transparent;
    pointer-events: auto;
  }

  .nav-list {
    display: flex;
    align-items: center;
    gap: clamp(22px, 3vw, 42px);
    padding: 0;
  }

  .nav-list a {
    position: relative;
    min-height: 48px;
    border: 0;
    font-size: 15px;
  }

  .nav-list a::after {
    position: absolute;
    right: 0;
    bottom: 8px;
    left: 0;
    height: 1px;
    background: var(--color-primary);
    content: "";
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition);
  }

  .nav-list a:hover::after {
    transform: scaleX(1);
    transform-origin: left;
  }

  .hero {
    min-height: min(760px, calc(100svh - 82px));
  }

  .hero-image {
    object-position: center;
  }

  .hero-inner {
    padding-block: 90px 120px;
  }

  .hero-copy {
    font-size: 18px;
  }

  .scroll-guide {
    right: 36px;
    bottom: 34px;
  }

  .concept-grid,
  .about-grid {
    align-items: center;
    grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.9fr);
    gap: clamp(56px, 8vw, 110px);
  }

  .concept-image-wrap {
    width: 100%;
    margin-left: 0;
  }

  .image-caption {
    margin-left: 0;
  }

  .works-grid {
    gap: 72px 30px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .about-grid {
    grid-template-columns: minmax(300px, 0.9fr) minmax(0, 1.1fr);
  }

  .about-copy {
    order: 1;
  }

  .about-image {
    width: 100%;
    order: 2;
  }

  .instagram-heading {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
    gap: 40px;
  }

  .instagram-heading .section-title {
    margin-bottom: 0;
  }

  .gallery-grid {
    gap: 12px;
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .gallery-item-large {
    grid-column: span 2;
    grid-row: span 2;
  }

  .gallery-item-large img {
    aspect-ratio: 1 / 1;
  }
}

@media (min-width: 1024px) {
  .section-title {
    font-size: clamp(36px, 4vw, 48px);
  }

  .hero h1 {
    font-size: clamp(52px, 5.6vw, 72px);
  }

  .concept-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(360px, 0.8fr);
  }

  .about-grid {
    grid-template-columns: minmax(360px, 0.8fr) minmax(0, 1.2fr);
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .js .reveal {
    opacity: 1;
    transform: none;
  }
}