/* ========================================
   Design Tokens (from Figma)
   ======================================== */
:root {
  --color-bg: #F8F6F2;
  --color-white: #FFFFFF;
  --color-border: #DDD8D0;
  --color-accent: #C88A63;
  --color-green: #3F5F55;
  --color-green-dark: #2D4540;
  --color-text: #6B7C79;
  --color-text-dark: #1E2D2A;
  --color-mint: #E8F0EE;
  --color-white-60: rgba(255, 255, 255, 0.6);
  --color-white-65: rgba(255, 255, 255, 0.65);
  --color-white-80: rgba(255, 255, 255, 0.8);
  --color-white-30: rgba(255, 255, 255, 0.3);
  --color-white-50: rgba(255, 255, 255, 0.5);
  --color-white-08: rgba(255, 255, 255, 0.08);
  --color-white-07: rgba(255, 255, 255, 0.07);
  --color-white-10: rgba(255, 255, 255, 0.1);
  --color-white-12: rgba(255, 255, 255, 0.12);
  --color-white-15: rgba(255, 255, 255, 0.15);

  --font-ja: 'Noto Sans JP', sans-serif;
  --font-en: 'Inter', sans-serif;

  --container-max: 1280px;
  --container-padding: 80px;
  --section-padding-y: 100px;
  --radius: 4px;
}

/* ========================================
   Reset & Base
   ======================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-ja);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-dark);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

/* ========================================
   Utilities
   ======================================== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.section {
  padding-top: var(--section-padding-y);
  padding-bottom: var(--section-padding-y);
}

.section--white {
  background-color: var(--color-white);
}

.section--green {
  background-color: var(--color-green);
}

.section--dark {
  background-color: var(--color-green-dark);
}

.text-accent {
  color: var(--color-accent);
}

.text-accent-dark {
  color: var(--color-accent);
}

/* ========================================
   Section Header
   ======================================== */
.section-label {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-accent);
  line-height: 1.5;
}

.section-title {
  font-size: 38px;
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: -0.025em;
  color: var(--color-green);
}

.section-title--white {
  color: var(--color-white);
}

.section-desc {
  font-size: 15px;
  line-height: 1.5;
  color: var(--color-text);
}

.section-desc--light {
  color: var(--color-white-60);
}

.section-header {
  margin-bottom: 32px;
}

.section-header__row {
  display: flex;
  align-items: flex-end;
  gap: 16px;
  padding-top: 16px;
}

.section-header__row .section-desc {
  padding-bottom: 6px;
  max-width: 433px;
}

.section-header:not(.section-header--light) .section-title {
  padding-top: 16px;
}

.section-header--light .section-title {
  padding-top: 8px;
}

.section-header--light .section-desc {
  padding-top: 8px;
}

.section-divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin-top: 32px;
}

.section-divider--light {
  border-top-color: var(--color-white-15);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px 32px;
  font-family: var(--font-ja);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.5;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: opacity 0.2s, background-color 0.2s;
  white-space: nowrap;
}

.btn:hover {
  opacity: 0.85;
}

.btn--primary {
  background-color: var(--color-accent);
  color: var(--color-white);
  font-weight: 600;
}

.btn--outline {
  background-color: transparent;
  color: var(--color-green);
  border-color: var(--color-green);
  font-weight: 500;
}

.btn--ghost {
  background-color: transparent;
  color: var(--color-white-80);
  border-color: var(--color-white-30);
  font-weight: 500;
}

.btn--block {
  width: 100%;
  padding: 16px 24px;
  font-weight: 700;
}

.btn--lg {
  padding: 16px 40px;
}

.btn__icon {
  flex-shrink: 0;
}

/* ========================================
   Header
   ======================================== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow 0.2s;
}

.header--scrolled {
  box-shadow: 0 2px 12px rgba(30, 45, 42, 0.08);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header__logo-dot {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
}

.header__logo-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-green);
  letter-spacing: -0.025em;
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.header__nav-link {
  font-size: 14px;
  color: var(--color-text);
  transition: color 0.2s;
}

.header__nav-link:hover {
  color: var(--color-green);
}

.header__nav-link--cta {
  padding: 10px 20px;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius);
}

.header__nav-link--cta:hover {
  color: var(--color-white);
  opacity: 0.85;
}

.header__menu-btn {
  display: none;
  background: none;
  border: none;
  font-family: var(--font-ja);
  font-size: 13px;
  color: var(--color-green);
  cursor: pointer;
  padding: 8px;
}

/* ========================================
   Hero
   ======================================== */
.hero.section {
  padding-top: 96px;
  padding-bottom: 112px;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: center;
}

.hero__title {
  font-size: 52px;
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--color-green);
}

.hero__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 24px;
}

.hero__brand-line {
  display: block;
  width: 32px;
  height: 2px;
  background-color: var(--color-accent);
  flex-shrink: 0;
}

.hero__brand-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-green);
}

.hero__desc {
  padding-top: 24px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--color-text);
  max-width: 480px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  padding-top: 32px;
}

.hero__visual {
  display: flex;
  justify-content: center;
}

.hero__image-wrap {
  width: 100%;
  background-color: var(--color-mint);
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 600 / 471;
}

.hero__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ========================================
   Cases
   ======================================== */
.cases__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.case-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.case-card__image {
  height: 160px;
  background-color: var(--color-mint);
  overflow: hidden;
}

.case-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.case-card__body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.case-card__tag {
  display: inline-block;
  align-self: flex-start;
  padding: 4px 10px;
  background-color: var(--color-mint);
  border-radius: var(--radius);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-green);
}

.case-card__title {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.375;
  color: var(--color-text-dark);
}

.case-card__support {
  font-size: 13px;
  font-weight: 500;
  line-height: 1.7;
  color: var(--color-text);
}

.case-card__client {
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
  font-size: 12px;
  color: var(--color-text);
}

/* ========================================
   Features
   ======================================== */
.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}

.feature-card {
  display: flex;
  flex-direction: column;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.feature-card__visual {
  flex-shrink: 0;
  height: 200px;
  background-color: var(--color-mint);
  overflow: hidden;
}

.feature-card__illust {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.feature-card__body {
  flex: 1;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.feature-card__title {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.375;
  color: var(--color-green);
}

.feature-card__highlight {
  padding-left: 12px;
  border-left: 1px solid var(--color-accent);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  line-height: 1.5;
}

.feature-card__desc {
  font-size: 14px;
  line-height: 1.85;
  color: var(--color-text);
}

/* ========================================
   Services
   ======================================== */
.services__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.service-card {
  padding: 24px;
  background-color: var(--color-white-07);
  border: 1px solid var(--color-white-12);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.service-card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-white-10);
  border-radius: var(--radius);
  font-size: 22px;
}

.service-card__title {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.375;
  color: var(--color-white);
}

.service-card__desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-white-60);
}

/* ========================================
   Members
   ======================================== */
.members__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.member-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.member-card__image {
  height: 220px;
  background-color: var(--color-mint);
  overflow: hidden;
}

.member-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.member-card__body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.member-card__name {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--color-green);
}

.member-card__role {
  font-size: 12px;
  color: var(--color-text);
}

.member-card__bio {
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-text);
}

.member-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
}

.member-card__tag {
  padding: 4px 10px;
  background-color: var(--color-mint);
  border-radius: var(--radius);
  font-size: 11px;
  font-weight: 500;
  color: var(--color-green);
}

/* ========================================
   Pricing
   ======================================== */
.pricing__grid {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 24px;
  margin-bottom: 24px;
}

.pricing-card {
  padding: 40px;
  background-color: var(--color-white);
  border: 1px solid var(--color-green);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.pricing-card__price {
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.pricing-card__amount {
  font-family: var(--font-en);
  font-size: 60px;
  font-weight: 900;
  line-height: 1;
  color: var(--color-green);
}

.pricing-card__unit {
  font-size: 18px;
  color: var(--color-text);
}

.pricing-card__details {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}

.pricing-card__detail {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.pricing-card__detail-label {
  font-size: 12px;
  color: var(--color-text);
}

.pricing-card__detail-value {
  font-family: var(--font-en);
  font-size: 26px;
  font-weight: 900;
  line-height: 1.5;
  color: var(--color-green);
}

.pricing-card__note {
  font-size: 14px;
  line-height: 1.85;
  color: var(--color-text);
  max-width: 655px;
}

.pricing-cta {
  padding: 32px;
  background-color: var(--color-green);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.pricing-cta__title {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.375;
  color: var(--color-white);
}

.pricing-cta__desc {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-white-65);
}

.pricing-cta__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.pricing-cta__list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--color-white-80);
}

.pricing-cta__check {
  color: var(--color-accent);
  font-size: 16px;
}

/* FAQ */
.faq {
  padding-top: 24px;
}

.faq__title {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-green);
  margin-bottom: 20px;
}

.faq__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.faq-item {
  padding: 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.faq-item__q {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-green);
  margin-bottom: 10px;
}

.faq-item__a {
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-text);
}

/* ========================================
   Flow
   ======================================== */
.flow__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.flow-card {
  position: relative;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.flow-card__header {
  padding: 12px 20px;
  background-color: var(--color-green);
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--color-white-60);
}

.flow-card__body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.flow-card__icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-mint);
  border-radius: var(--radius);
  font-size: 26px;
}

.flow-card__title {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.375;
  color: var(--color-green);
}

.flow-card__desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-text);
}

.flow-card__time {
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 600;
  color: var(--color-accent);
}

.flow-card__arrow {
  position: absolute;
  top: 50%;
  right: -16px;
  transform: translateY(-50%);
  z-index: 2;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-accent);
  color: var(--color-white);
  border-radius: 50%;
  font-size: 13px;
}

.flow-card--last .flow-card__arrow {
  display: none;
}

/* ========================================
   CTA
   ======================================== */
.cta__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 40px;
}

.cta__badge {
  display: inline-block;
  padding: 10px 20px;
  background-color: var(--color-accent);
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-white);
}

.cta__title {
  font-size: 52px;
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--color-white);
}

.cta__desc {
  font-size: 16px;
  line-height: 1.9;
  color: var(--color-white-60);
  max-width: 520px;
}

.cta__actions {
  display: flex;
  gap: 16px;
}

/* ========================================
   Footer
   ======================================== */
.footer {
  background-color: var(--color-green-dark);
  border-top: 1px solid var(--color-white-08);
}

.footer .container {
  padding-top: 48px;
  padding-bottom: 48px;
}

.footer__top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--color-white-08);
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer__logo-dot {
  font-size: 18px;
  color: var(--color-accent);
}

.footer__logo-text {
  font-size: 18px;
  font-weight: 900;
  color: var(--color-white);
}

.footer__nav {
  display: flex;
  gap: 24px;
}

.footer__nav a {
  font-size: 13px;
  color: var(--color-white-50);
  transition: color 0.2s;
}

.footer__nav a:hover {
  color: var(--color-white);
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
}

.footer__copy {
  font-size: 12px;
  color: var(--color-white-30);
}

.footer__links {
  display: flex;
  gap: 20px;
}

.footer__links a {
  font-size: 12px;
  color: var(--color-white-30);
  transition: color 0.2s;
}

.footer__links a:hover {
  color: var(--color-white-50);
}

/* ========================================
   Responsive - Tablet
   ======================================== */
@media (max-width: 1024px) {
  :root {
    --container-padding: 40px;
  }

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

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

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

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

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

  .flow-card__arrow {
    display: none;
  }

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

/* ========================================
   Responsive - Mobile
   ======================================== */
@media (max-width: 768px) {
  :root {
    --container-padding: 20px;
    --section-padding-y: 80px;
  }

  .header__nav {
    display: none;
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 24px 20px;
    background-color: var(--color-white);
    border-top: 1px solid var(--color-border);
    overflow-y: auto;
    z-index: 99;
  }

  .header__nav.is-open {
    display: flex;
  }

  .header__nav-link {
    padding: 16px 0;
    font-size: 15px;
    border-bottom: 1px solid var(--color-border);
  }

  .header__nav-link--cta {
    margin-top: 16px;
    text-align: center;
    border-bottom: none;
  }

  .header__menu-btn {
    display: block;
  }

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

  .hero__title {
    font-size: 36px;
  }

  .hero__actions {
    flex-direction: column;
  }

  .hero__actions .btn {
    width: 100%;
    justify-content: center;
  }

  .section-header__row {
    flex-direction: column;
    align-items: flex-start;
  }

  .section-title {
    font-size: 28px;
  }

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

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

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

  .pricing-card__details {
    grid-template-columns: 1fr;
  }

  .pricing-card__amount {
    font-size: 48px;
  }

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

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

  .cta__title {
    font-size: 36px;
  }

  .cta__actions {
    flex-direction: column;
    width: 100%;
  }

  .cta__actions .btn {
    width: 100%;
  }

  .footer__top {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
  }

  .footer__nav {
    flex-wrap: wrap;
    gap: 16px;
  }

  .footer__bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .footer__links {
    flex-wrap: wrap;
  }
}