:root {
  --bg: #f6f2e8;
  --bg2: #efe7d9;
  --paper: #fffdf8;
  --line: #d8cfbf;
  --ink: #4b3424;
  --sub: #6e5c4d;
  --green: #788d70;
  --green-soft: #e6ede1;
  --brown-soft: #eaddcd;
  --accent: #d5a864;
  --shadow: 0 18px 48px rgba(76, 52, 36, 0.10);
  --shadow-soft: 0 8px 22px rgba(76, 52, 36, 0.06);
  --radius: 26px;
  --max: 1180px;
  --header: 84px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header) + 8px);
}

body {
  margin: 0;
  font-family: "Noto Sans JP", sans-serif;
  color: var(--ink);
  background:
    linear-gradient(180deg, var(--bg) 0%, #fbf8f2 34%, #f2ebde 100%);
  overflow-x: hidden;
}

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

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input, textarea, select { font: inherit; }

.site-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 8% 15%, rgba(120, 141, 112, 0.08), transparent 26%),
    radial-gradient(circle at 92% 5%, rgba(213, 168, 100, 0.10), transparent 24%),
    radial-gradient(circle at 85% 85%, rgba(120, 141, 112, 0.07), transparent 28%);
  z-index: -1;
}

.container {
  width: min(calc(100% - 32px), var(--max));
  margin: 0 auto;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--green);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .12em;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--green);
}

.section {
  padding: 92px 0;
}

.section__head {
  width: min(100%, 760px);
  margin: 0 auto 36px;
  text-align: center;
}
.section__head .eyebrow {
  justify-content: center;
}
.section__head .eyebrow::after {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--green);
}

.section__title {
  margin: 0;
  font-family: "Kiwi Maru", serif;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.45;
  font-weight: 500;
  letter-spacing: .02em;
  word-break: keep-all;
}

.section__lead {
  margin: 18px 0 0;
  color: var(--sub);
  line-height: 2;
  font-size: 16px;
}

/* header */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 14px 0;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.header.is-scrolled {
  background: rgba(251, 248, 242, 0.72);
  border-bottom: 1px solid rgba(75, 52, 36, 0.07);
}
.header__inner {
  width: min(calc(100% - 32px), var(--max));
  min-height: 62px;
  margin: 0 auto;
  background: rgba(255, 253, 248, 0.82);
  border: 1px solid rgba(75, 52, 36, 0.08);
  box-shadow: var(--shadow-soft);
  border-radius: 999px;
  padding: 8px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}
.brand__icon {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: var(--shadow-soft);
}
.brand__text {
  display: grid;
  min-width: 0;
}
.brand__sub {
  color: var(--green);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
}
.brand__main {
  font-family: "Kiwi Maru", serif;
  font-size: 17px;
  font-weight: 500;
  white-space: nowrap;
}

.nav {
  display: flex;
  align-items: center;
  gap: 2px;
}
.nav a {
  min-height: 42px;
  padding: 0 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  color: var(--sub);
  font-size: 14px;
  font-weight: 700;
  transition: .2s ease;
}
.nav a:hover {
  color: var(--ink);
  background: rgba(120, 141, 112, 0.08);
}
.nav__cta {
  background: var(--green);
  color: #fff !important;
}

.menu-btn {
  display: none;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 50%;
  background: var(--green);
  position: relative;
  cursor: pointer;
}
.menu-btn span {
  position: absolute;
  left: 12px;
  width: 20px;
  height: 2px;
  border-radius: 999px;
  background: #fff;
  transition: .25s ease;
}
.menu-btn span:nth-child(1) { top: 15px; }
.menu-btn span:nth-child(2) { top: 21px; }
.menu-btn span:nth-child(3) { top: 27px; }
.menu-btn.is-open span:nth-child(1) { top: 21px; transform: rotate(45deg); }
.menu-btn.is-open span:nth-child(2) { opacity: 0; }
.menu-btn.is-open span:nth-child(3) { top: 21px; transform: rotate(-45deg); }

/* hero */
.hero {
  padding: 28px 0 64px;
}
.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, .95fr);
  gap: 36px;
  align-items: center;
}
.hero__title {
  margin: 0;
  font-family: "Kiwi Maru", serif;
  font-size: clamp(40px, 6vw, 78px);
  line-height: 1.18;
  font-weight: 500;
  letter-spacing: .01em;
  word-break: keep-all;
}
.hero__lead {
  margin: 22px 0 0;
  color: var(--sub);
  font-size: 17px;
  line-height: 2.05;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}
.hero__chips {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.hero__chips li {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 253, 248, 0.8);
  border: 1px solid var(--line);
  color: var(--sub);
  font-size: 13px;
  font-weight: 700;
}

.btn {
  min-height: 52px;
  padding: 0 24px;
  border-radius: 999px;
  border: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-weight: 800;
  font-size: 15px;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn--primary {
  color: #fff;
  background: var(--green);
  box-shadow: 0 12px 24px rgba(120, 141, 112, 0.22);
}
.btn--line {
  color: var(--ink);
  background: rgba(255, 253, 248, 0.8);
  border-color: var(--line);
}

.atelier-board {
  background: linear-gradient(180deg, rgba(255,253,248,0.95), rgba(248,243,235,0.95));
  border: 1px solid rgba(75, 52, 36, 0.10);
  border-radius: 34px;
  box-shadow: var(--shadow);
  padding: 20px;
  position: relative;
}
.atelier-board::before {
  content: "";
  position: absolute;
  inset: 14px;
  border-radius: 24px;
  border: 1px dashed rgba(120, 141, 112, 0.28);
  pointer-events: none;
}
.atelier-board__top,
.atelier-board__bottom {
  position: relative;
  z-index: 1;
}
.atelier-board__top {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.atelier-board__pin {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(213, 168, 100, 0.16);
}
.atelier-board__label {
  color: var(--sub);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
}
.atelier-board__main {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}
.atelier-board__card {
  display: grid;
  grid-template-columns: 132px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  padding: 18px;
  border-radius: 24px;
  background: rgba(255,255,255,0.66);
  border: 1px solid rgba(75, 52, 36, 0.08);
}
.atelier-board__icon {
  width: 132px;
  height: 132px;
  object-fit: cover;
  border-radius: 22px;
  background: #fff;
  padding: 8px;
}
.atelier-board__copy p {
  margin: 0 0 6px;
  color: var(--green);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .12em;
}
.atelier-board__copy strong {
  font-family: "Kiwi Maru", serif;
  font-weight: 500;
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.5;
}
.atelier-board__notes {
  display: grid;
  gap: 12px;
}
.note-card {
  background: rgba(255,253,248,0.9);
  border: 1px solid rgba(75, 52, 36, 0.08);
  border-left: 5px solid var(--green);
  border-radius: 18px;
  padding: 16px 16px 16px 18px;
  display: grid;
  gap: 4px;
}
.note-card span {
  color: var(--accent);
  font-family: "Kiwi Maru", serif;
  font-size: 28px;
}
.note-card p {
  margin: 0;
  font-weight: 700;
  line-height: 1.7;
}
.atelier-board__bottom {
  margin-top: 14px;
}
.mini-memo {
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(230, 237, 225, 0.72);
  color: var(--ink);
}
.mini-memo strong {
  display: block;
  margin-bottom: 6px;
  font-size: 14px;
}
.mini-memo p {
  margin: 0;
  color: var(--sub);
  line-height: 1.7;
  font-size: 14px;
}

/* intro */
.intro {
  padding-top: 24px;
}
.intro__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.intro-card {
  padding: 24px;
  border-radius: var(--radius);
  background: rgba(255, 253, 248, 0.8);
  border: 1px solid rgba(75, 52, 36, 0.08);
  box-shadow: var(--shadow-soft);
}
.intro-card strong {
  display: block;
  margin-bottom: 10px;
  font-size: 20px;
  color: var(--green);
}
.intro-card p {
  margin: 0;
  color: var(--sub);
  line-height: 1.9;
}

/* works */
.works {
  background: linear-gradient(180deg, rgba(255,253,248,0.35), rgba(234,221,205,0.28));
}
.works-filter {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}
.filter-btn {
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,253,248,0.8);
  color: var(--sub);
  font-weight: 700;
  cursor: pointer;
  transition: .2s ease;
}
.filter-btn:hover,
.filter-btn.is-active {
  background: var(--green);
  border-color: var(--green);
  color: #fff;
}
.works-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.work-card {
  display: flex;
  flex-direction: column;
  border-radius: 28px;
  overflow: hidden;
  background: rgba(255,253,248,0.82);
  border: 1px solid rgba(75, 52, 36, 0.08);
  box-shadow: var(--shadow-soft);
  transition: transform .25s ease, box-shadow .25s ease;
}
.work-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
}
.work-card.is-hide { display: none; }
.work-card__thumb {
  padding: 18px;
  background:
    linear-gradient(135deg, rgba(230,237,225,0.9), rgba(234,221,205,0.78));
}
.work-card__screen {
  aspect-ratio: 16 / 10;
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(255,255,255,.95), rgba(248,243,235,.95));
  border: 1px solid rgba(75, 52, 36, 0.08);
  box-shadow: inset 0 0 0 1px rgba(120, 141, 112, 0.08);
  position: relative;
  overflow: hidden;
}
.work-card__image {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: top center;
  background: #fff;
}
.work-card__mock {
  position: absolute;
  inset: 40px 18px 18px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-family: "Kiwi Maru", serif;
  font-size: 24px;
  color: var(--green);
  background: rgba(255,253,248,0.7);
  text-align: center;
  padding: 10px;
}
.work-card__body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}
.work-card__tag {
  align-self: flex-start;
  padding: 7px 10px;
  border-radius: 999px;
  background: var(--green-soft);
  color: var(--green);
  font-size: 12px;
  font-weight: 800;
}
.work-card h3 {
  margin: 0;
  font-size: 22px;
  line-height: 1.5;
}
.work-card p {
  margin: 0;
  color: var(--sub);
  line-height: 1.9;
  font-size: 14px;
}
.work-card__actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
  padding-top: 8px;
}
.mini-btn {
  min-height: 40px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: .2s ease;

  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  white-space: nowrap;
}
.mini-btn:hover {
  background: var(--green);
  color: #fff;
  border-color: var(--green);
}

/* service */
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.service-card {
  padding: 24px;
  border-radius: 26px;
  background: rgba(255,253,248,0.82);
  border: 1px solid rgba(75, 52, 36, 0.08);
  box-shadow: var(--shadow-soft);
}
.service-card span {
  color: var(--accent);
  font-family: "Kiwi Maru", serif;
  font-size: 34px;
}
.service-card h3 {
  margin: 10px 0 10px;
  font-size: 20px;
  line-height: 1.5;
}
.service-card p {
  margin: 0;
  color: var(--sub);
  line-height: 1.9;
}

/* point */
.point__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, .96fr);
  gap: 28px;
  align-items: center;
}
.point-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.point-list li {
  padding: 14px 16px 14px 44px;
  border-radius: 18px;
  background: rgba(255,253,248,0.82);
  border: 1px solid rgba(75, 52, 36, 0.08);
  position: relative;
  font-weight: 700;
}
.point-list li::before {
  content: "✓";
  position: absolute;
  left: 16px;
  top: 13px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--green);
  color: #fff;
  font-size: 12px;
}

.qa-box {
  padding: 24px;
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(255,253,248,0.94), rgba(234,221,205,0.62));
  border: 1px solid rgba(75, 52, 36, 0.08);
  box-shadow: var(--shadow);
}
.qa-box__label {
  margin-bottom: 14px;
  color: var(--green);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .12em;
}
.qa-item {
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(255,255,255,0.72);
  border: 1px solid rgba(75, 52, 36, 0.08);
  color: var(--sub);
  line-height: 1.8;
}
.qa-item + .qa-item {
  margin-top: 10px;
}

/* faq */
.faq-list {
  width: min(100%, 860px);
  margin: 0 auto;
  display: grid;
  gap: 12px;
}
.faq-item {
  border-radius: 22px;
  background: rgba(255,253,248,0.82);
  border: 1px solid rgba(75, 52, 36, 0.08);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}
.faq-question {
  width: 100%;
  min-height: 64px;
  padding: 18px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border: 0;
  background: transparent;
  cursor: pointer;
  color: var(--ink);
  text-align: left;
  font-weight: 800;
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .28s ease;
}
.faq-answer p {
  margin: 0;
  padding: 0 20px 20px;
  color: var(--sub);
  line-height: 1.9;
}
.faq-icon {
  width: 30px;
  height: 30px;
  flex: 0 0 auto;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--green);
  background: var(--green-soft);
  transition: transform .25s ease;
}
.faq-item.is-open .faq-icon {
  transform: rotate(45deg);
}

/* contact */
.contact {
  padding-bottom: 110px;
}
.contact-box {
  text-align: center;
  padding: clamp(28px, 5vw, 54px);
  border-radius: 34px;
  background: linear-gradient(180deg, rgba(255,253,248,0.9), rgba(230,237,225,0.52));
  border: 1px solid rgba(75, 52, 36, 0.08);
  box-shadow: var(--shadow);
}
.contact__actions {
  margin-top: 28px;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
}
.contact__note {
  margin: 16px 0 0;
  color: var(--sub);
  font-size: 13px;
  line-height: 1.8;
}

/* modal */
.modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: grid;
  place-items: center;
  padding: 18px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: .25s ease;
}
.modal.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}
.modal__overlay {
  position: absolute;
  inset: 0;
  background: rgba(45, 30, 20, 0.42);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.modal__body {
  position: relative;
  width: min(100%, 700px);
  max-height: 86vh;
  overflow: auto;
  background: var(--paper);
  border-radius: 28px;
  padding: 28px;
  box-shadow: 0 24px 72px rgba(45, 30, 20, 0.28);
  transform: translateY(8px);
  transition: transform .25s ease;
}
.modal.is-open .modal__body { transform: translateY(0); }
.modal__close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 50%;
  background: var(--green);
  color: #fff;
  font-size: 24px;
  cursor: pointer;
}
.modal__tag {
  margin: 0 48px 8px 0;
  color: var(--green);
  font-size: 12px;
  font-weight: 800;
}
.modal h3 {
  margin: 0 48px 10px 0;
  font-family: "Kiwi Maru", serif;
  font-size: clamp(26px, 4vw, 38px);
  line-height: 1.5;
  font-weight: 500;
}
.modal__text {
  margin: 0;
  color: var(--sub);
  line-height: 1.9;
}
.modal__features {
  list-style: none;
  padding: 0;
  margin: 20px 0 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}
.modal__features li {
  padding: 10px 12px;
  border-radius: 14px;
  background: rgba(255,253,248,0.9);
  border: 1px solid rgba(75, 52, 36, 0.08);
  color: var(--sub);
  font-size: 13px;
  font-weight: 700;
}
.modal__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

/* to top */
.to-top {
  position: fixed;
  right: 18px;
  bottom: 18px;
  width: 48px;
  height: 48px;
  border: 0;
  border-radius: 50%;
  background: var(--green);
  color: #fff;
  cursor: pointer;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: .2s ease;
}
.to-top.is-show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* reveal */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* tablet */
@media (max-width: 980px) {
  .menu-btn { display: block; }

  .nav {
    position: fixed;
    left: 12px;
    right: 12px;
    top: 84px;
    display: grid;
    gap: 8px;
    padding: 14px;
    border-radius: 24px;
    background: rgba(255,253,248,0.98);
    border: 1px solid rgba(75, 52, 36, 0.08);
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-8px);
    transition: .24s ease;
  }
  .nav.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }
  .nav a { min-height: 48px; }

  .hero__grid,
  .point__grid {
    grid-template-columns: 1fr;
  }
  .hero__visual {
    order: -1;
  }

  .works-grid,
  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .intro__grid {
    grid-template-columns: 1fr;
  }
}

/* mobile */
@media (max-width: 640px) {
  .container,
  .header__inner {
    width: min(calc(100% - 20px), var(--max));
  }

  .header {
    padding: 10px 0;
  }
  .header__inner {
    min-height: 58px;
    padding: 8px 10px;
  }
  .brand__icon {
    width: 40px;
    height: 40px;
  }
  .brand__main {
    font-size: 15px;
  }
  .brand__sub {
    font-size: 10px;
  }

  .hero {
    padding: 18px 0 44px;
  }
  .hero__title {
    font-size: clamp(34px, 10.5vw, 50px);
    line-height: 1.26;
  }
  .hero__lead,
  .section__lead {
    font-size: 14px;
    line-height: 1.95;
  }
  .hero__actions,
  .contact__actions,
  .modal__actions {
    display: grid;
    grid-template-columns: 1fr;
  }
  .btn {
    width: 100%;
  }
  .hero__chips {
    gap: 8px;
  }
  .hero__chips li {
    font-size: 12px;
    padding: 9px 12px;
  }

  .atelier-board {
    padding: 16px;
    border-radius: 26px;
  }
  .atelier-board__card {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .atelier-board__icon {
    width: 120px;
    height: 120px;
    margin: 0 auto;
  }
  .atelier-board__copy strong {
    font-size: 28px;
  }

  .section {
    padding: 66px 0;
  }
  .works-grid,
  .service-grid {
    grid-template-columns: 1fr;
  }
  .work-card,
  .intro-card,
  .service-card,
  .contact-box {
    border-radius: 22px;
  }
  .work-card__body,
  .intro-card,
  .service-card {
    padding: 18px;
  }

  .modal {
    padding: 12px;
  }
  .modal__body {
    padding: 22px;
    border-radius: 22px;
  }
  .modal__features {
    grid-template-columns: 1fr;
  }

  .contact {
    padding-bottom: 84px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
}