:root {
  --ink: #151812;
  --muted: #696d62;
  --green: #315b33;
  --green-soft: #eef3ec;
  --yellow: #f4b51f;
  --yellow-soft: #fbefd0;
  --coral: #e66f4f;
  --coral-soft: #f8e2db;
  --line: #e8dfd2;
  --paper: #fffdf8;
  --white: #ffffff;
  --shadow: 0 20px 55px rgba(49, 91, 51, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 6%, rgba(244, 181, 31, 0.08), transparent 28%),
    linear-gradient(180deg, #fffefb 0%, #f8f5ee 100%);
  font-family: "Noto Sans JP", system-ui, sans-serif;
  letter-spacing: 0;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: minmax(220px, 1fr) auto auto auto;
  align-items: center;
  gap: 28px;
  min-height: 78px;
  padding: 14px clamp(22px, 4vw, 68px);
  background: rgba(255, 253, 248, 0.94);
  border-bottom: 1px solid rgba(232, 223, 210, 0.8);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  font-weight: 700;
  color: #25271f;
}

.brand-mark {
  width: 44px;
  height: 44px;
  color: var(--green);
  flex: 0 0 auto;
}

.brand-mark svg,
.header-cta svg,
.button svg,
.service-card svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.brand-mark svg {
  stroke-width: 2.3;
}

.brand-copy {
  display: block;
  font-size: 13px;
  line-height: 1.65;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(22px, 3vw, 48px);
  font-size: 14px;
  font-weight: 700;
  color: #3f443a;
}

.nav-links a {
  position: relative;
  padding: 10px 2px;
}

.nav-links a::after {
  position: absolute;
  left: 0;
  bottom: 3px;
  width: 100%;
  height: 2px;
  background: var(--green);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
  content: "";
}

.nav-links a:hover::after,
.nav-links a.active::after {
  transform: scaleX(1);
}

.header-cta,
.button,
.outline-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  border-radius: 6px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.header-cta {
  padding: 0 24px;
  color: var(--white);
  background: var(--green);
  box-shadow: 0 12px 28px rgba(49, 91, 51, 0.18);
  white-space: nowrap;
}

.header-cta svg,
.button svg {
  width: 22px;
  height: 22px;
  stroke-width: 2;
}

.lang-toggle,
.nav-toggle {
  border: 0;
  background: transparent;
  color: #30332c;
  font: inherit;
  font-weight: 700;
}

.lang-toggle {
  white-space: nowrap;
}

.nav-toggle {
  display: none;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(320px, 0.78fr) minmax(420px, 1.22fr);
  min-height: 610px;
  padding-left: clamp(24px, 5vw, 72px);
  overflow: hidden;
  background: var(--paper);
}

.hero::after {
  position: absolute;
  inset: 0;
  width: 58%;
  background: linear-gradient(90deg, rgba(255,253,248,0.98) 0%, rgba(255,253,248,0.94) 55%, rgba(255,253,248,0) 100%);
  pointer-events: none;
  content: "";
}

.hero-copy {
  position: relative;
  z-index: 2;
  align-self: center;
  max-width: 620px;
  padding: 62px 0 160px;
}

.eyebrow,
.section-label {
  margin: 0 0 14px;
  color: var(--green);
  font-size: 14px;
  font-weight: 700;
}

.hero h1 {
  margin: 0;
  font-family: "Playfair Display", Georgia, serif;
  font-size: clamp(58px, 7vw, 110px);
  line-height: 0.94;
  font-weight: 700;
  letter-spacing: 0;
}

.hero h1 span {
  color: var(--green);
}

.brand-presenter {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 18px 0 0;
  color: var(--green);
  font-family: "Playfair Display", Georgia, serif;
  font-size: clamp(18px, 1.8vw, 26px);
  font-weight: 700;
}

.brand-presenter::before {
  width: 44px;
  height: 1px;
  background: var(--line);
  content: "";
}

.hero-sub {
  margin: 18px 0 34px;
  font-size: clamp(20px, 2vw, 29px);
  font-weight: 700;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.button {
  min-width: 220px;
  padding: 0 25px;
  border: 1px solid transparent;
  font-size: 15px;
}

.button:hover,
.outline-button:hover,
.header-cta:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: #1e211b;
  background: var(--yellow);
  box-shadow: 0 16px 32px rgba(244, 181, 31, 0.24);
}

.button-ghost,
.outline-button {
  color: var(--green);
  background: rgba(255,255,255,0.82);
  border: 1.5px solid var(--green);
}

.hero-photo {
  position: relative;
  min-height: 610px;
}

.hero-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.service-strip {
  position: relative;
  z-index: 4;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  width: min(92%, 1440px);
  margin: -92px auto 0;
  background: rgba(255,255,255,0.92);
  border: 1px solid rgba(232, 223, 210, 0.9);
  border-radius: 8px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.service-card {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 28px;
  align-items: center;
  min-height: 180px;
  padding: 34px clamp(24px, 3vw, 42px);
  background: rgba(255,255,255,0.82);
}

.service-card + .service-card {
  border-left: 1px solid var(--line);
}

.icon-bubble {
  display: grid;
  place-items: center;
  width: 112px;
  height: 112px;
  border-radius: 50%;
}

.icon-bubble svg {
  width: 70px;
  height: 70px;
  stroke-width: 3;
}

.icon-bubble.green {
  color: var(--green);
  background: var(--green-soft);
}

.icon-bubble.coral {
  color: var(--coral);
  background: var(--coral-soft);
}

.icon-bubble.yellow {
  color: #c99016;
  background: var(--yellow-soft);
}

.service-card h2 {
  margin: 0 0 12px;
  font-size: clamp(22px, 2vw, 28px);
}

.service-card p {
  margin: 0 0 16px;
  color: #555a50;
  font-weight: 700;
  line-height: 1.75;
}

.service-card a,
.site-footer a {
  color: var(--green);
  font-weight: 700;
}

.works-section {
  position: relative;
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 40px;
  padding: 70px clamp(24px, 5vw, 72px) 58px;
}

.section-intro h2,
.audience-section h2,
.approach-section h2,
.about-section h2,
.faq-section h2,
.contact-section h2 {
  margin: 0;
  font-size: clamp(27px, 3.4vw, 46px);
  line-height: 1.35;
}

.section-intro p:not(.section-label),
.audience-section p,
.approach-section p,
.about-section p,
.contact-section p {
  color: #596056;
  font-weight: 700;
  line-height: 1.9;
}

.audience-section {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 40px;
  padding: 72px clamp(24px, 5vw, 72px);
  background: linear-gradient(180deg, rgba(255,255,255,0.72), rgba(255,250,240,0.74));
  border-top: 1px solid rgba(232, 223, 210, 0.78);
}

.audience-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.audience-card {
  min-height: 240px;
  padding: 26px 24px;
  background: var(--white);
  border: 1px solid rgba(232, 223, 210, 0.9);
  border-radius: 8px;
  box-shadow: 0 16px 35px rgba(49, 91, 51, 0.08);
}

.audience-card span {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 22px;
  border-radius: 50%;
  background: #fff3c7;
  color: var(--green);
  font-family: "Playfair Display", Georgia, serif;
  font-size: 18px;
  font-weight: 700;
}

.audience-card h3 {
  margin: 0 0 14px;
  color: #1f261f;
  font-size: clamp(19px, 1.7vw, 24px);
  line-height: 1.55;
}

.audience-card p {
  margin: 0;
  color: #596056;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.9;
}

.approach-section {
  display: grid;
  grid-template-columns: minmax(280px, 0.82fr) minmax(340px, 1fr);
  gap: clamp(28px, 6vw, 80px);
  padding: 76px clamp(24px, 5vw, 72px);
  background: #fffdf8;
  border-top: 1px solid rgba(232, 223, 210, 0.78);
}

.approach-body {
  display: grid;
  gap: 24px;
}

.approach-body > p {
  margin: 0;
  font-size: 16px;
}

.approach-list {
  display: grid;
  gap: 10px;
}

.approach-list p {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid rgba(232, 223, 210, 0.9);
  border-radius: 8px;
  box-shadow: 0 12px 26px rgba(49, 91, 51, 0.06);
}

.approach-list span {
  min-width: 64px;
  color: var(--green);
  font-family: "Playfair Display", Georgia, serif;
  font-weight: 700;
}

.outline-button {
  min-width: 210px;
  margin-top: 16px;
  padding: 0 22px;
  font-size: 14px;
}

.works-track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(240px, 1fr);
  gap: 24px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  padding: 0 10px 18px 0;
}

.works-track::-webkit-scrollbar {
  display: none;
}

.work-card {
  min-width: 250px;
  background: var(--white);
  border: 1px solid rgba(232, 223, 210, 0.78);
  border-radius: 8px;
  box-shadow: 0 16px 35px rgba(49, 91, 51, 0.08);
  overflow: hidden;
  scroll-snap-align: start;
}

.work-card img {
  width: 100%;
  aspect-ratio: 1.62;
  object-fit: cover;
}

.work-body {
  padding: 16px 18px 18px;
}

.work-body p {
  margin: 0 0 10px;
  font-weight: 700;
}

.work-body span {
  color: #7a8076;
  font-size: 13px;
  font-weight: 700;
}

.carousel-button {
  position: absolute;
  z-index: 3;
  top: 52%;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(232, 223, 210, 0.9);
  border-radius: 50%;
  background: rgba(255,255,255,0.92);
  color: var(--green);
  font-size: 34px;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 10px 24px rgba(49, 91, 51, 0.12);
}

.carousel-button.prev {
  left: calc(clamp(24px, 5vw, 72px) + 280px);
}

.carousel-button.next {
  right: 34px;
}

.about-section,
.faq-section,
.contact-section {
  display: grid;
  grid-template-columns: minmax(260px, 0.72fr) minmax(320px, 1fr);
  gap: clamp(28px, 6vw, 90px);
  padding: 78px clamp(24px, 5vw, 72px);
  border-top: 1px solid rgba(232, 223, 210, 0.78);
}

.about-section {
  background: rgba(255,255,255,0.54);
}

.faq-section {
  background: #fffaf0;
}

.faq-list {
  display: grid;
  gap: 12px;
}

details {
  padding: 22px 24px;
  background: var(--white);
  border: 1px solid rgba(232, 223, 210, 0.9);
  border-radius: 8px;
}

summary {
  color: #2d3029;
  font-weight: 700;
  cursor: pointer;
}

details p {
  margin: 14px 0 0;
  color: #62685d;
  line-height: 1.8;
}

.contact-section {
  align-items: start;
}

.contact-form {
  display: grid;
  gap: 16px;
  padding: 28px;
  background: var(--white);
  border: 1px solid rgba(232, 223, 210, 0.9);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

label {
  display: grid;
  gap: 8px;
  color: #3f443a;
  font-size: 13px;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid #ddd2c2;
  border-radius: 6px;
  padding: 13px 14px;
  background: #fffdf8;
  color: var(--ink);
  font: inherit;
}

textarea {
  resize: vertical;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 30px clamp(24px, 5vw, 72px);
  color: #5f665a;
  border-top: 1px solid rgba(232, 223, 210, 0.9);
}

.site-footer p {
  margin: 0;
  font-family: "Playfair Display", Georgia, serif;
  font-weight: 700;
}

@media (max-width: 1180px) {
  .site-header {
    grid-template-columns: 1fr auto auto;
  }

  .nav-toggle {
    display: grid;
    gap: 6px;
    width: 44px;
    height: 44px;
    place-items: center;
  }

  .nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--green);
  }

  .nav-links {
    position: absolute;
    left: 24px;
    right: 24px;
    top: 74px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 18px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
  }

  .nav-links.open {
    display: flex;
  }

  .header-cta {
    grid-column: 2;
  }

  .lang-toggle {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    padding: 0;
  }

  .hero::after {
    width: 100%;
    background: linear-gradient(180deg, rgba(255,253,248,0.98) 0%, rgba(255,253,248,0.8) 55%, rgba(255,253,248,0) 100%);
  }

  .hero-copy {
    padding: 56px 28px 260px;
  }

  .hero-photo {
    position: absolute;
    inset: auto 0 0;
    height: 360px;
    min-height: 0;
  }

  .service-strip {
    grid-template-columns: 1fr;
    margin-top: 0;
  }

  .service-card + .service-card {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .works-section,
  .audience-section,
  .approach-section,
  .about-section,
  .faq-section,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .carousel-button.prev {
    left: 20px;
  }
}

@media (max-width: 700px) {
  .site-header {
    min-height: 68px;
    padding: 12px 18px;
    gap: 12px;
  }

  .brand-copy {
    max-width: 190px;
    white-space: normal;
    font-size: 12px;
  }

  .header-cta {
    display: none;
  }

  .hero-copy {
    padding: 42px 20px 220px;
  }

  .hero h1 {
    font-size: clamp(44px, 16vw, 64px);
  }

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

  .hero-photo {
    height: 280px;
  }

  .hero-actions {
    display: grid;
  }

  .button,
  .outline-button {
    width: 100%;
  }

  .service-strip {
    width: calc(100% - 28px);
  }

  .service-card {
    grid-template-columns: 86px 1fr;
    gap: 18px;
    min-height: 148px;
    padding: 22px 18px;
  }

  .icon-bubble {
    width: 78px;
    height: 78px;
  }

  .icon-bubble svg {
    width: 52px;
    height: 52px;
  }

  .service-card h2 {
    font-size: 21px;
  }

  .service-card p {
    font-size: 13px;
  }

  .works-section,
  .audience-section,
  .approach-section,
  .about-section,
  .faq-section,
  .contact-section {
    padding: 52px 18px;
  }

  .approach-list p {
    display: grid;
    gap: 4px;
  }

  .audience-grid {
    grid-template-columns: 1fr;
  }

  .audience-card {
    min-height: auto;
    padding: 22px 20px;
  }

  .works-track {
    grid-auto-columns: 82%;
  }

  .carousel-button {
    display: none;
  }

  .contact-form {
    padding: 20px;
  }

  .site-footer {
    display: grid;
  }
}