:root {
  --color-bg: #F5F6F7;
  --color-bg-card: #EBEDEF;
  --color-surface: #FFFFFF;
  --color-border: #DDE0E3;
  --color-ink: #1B222B;
  --color-navy: #1F3A63;
  --color-navy-deep: #16294A;
  --color-text-sub: #5A6672;
  --color-text-faint: #8A9199;
  --color-accent: #C08A2E;
  --font-body: "Noto Sans JP", sans-serif;
  --font-display: "Zen Old Mincho", serif;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

ul, ol {
  list-style: none;
}

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-title {
  font-size: 22px;
  font-weight: 500;
  letter-spacing: 0.02em;
  margin-bottom: 32px;
  color: var(--color-ink);
}

/* ---------- Header ---------- */
.header {
  position: sticky;
  top: 0;
  background: rgba(245, 246, 247, 0.9);
  backdrop-filter: blur(6px);
  border-bottom: 0.5px solid var(--color-border);
  z-index: 10;
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo__img {
  height: 22px;
  width: auto;
  display: block;
}

.logo__sub {
  font-size: 11px;
  color: var(--color-text-sub);
  letter-spacing: 0.03em;
  border-left: 1px solid var(--color-border);
  padding-left: 12px;
  white-space: nowrap;
}

.logo__sub strong {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-ink);
  margin-left: 4px;
}

.nav {
  display: flex;
  gap: 28px;
  font-size: 13px;
  color: var(--color-text-sub);
}

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

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 120px 0 96px;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  opacity: 0.6;
  filter: grayscale(1);
  mask-image: linear-gradient(to right, transparent 0%, transparent 32%, rgba(0, 0, 0, 0.75) 62%, black 85%);
  -webkit-mask-image: linear-gradient(to right, transparent 0%, transparent 32%, rgba(0, 0, 0, 0.75) 62%, black 85%);
}

.hero__inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 640px;
}

.hero__name {
  font-size: 18px;
  font-weight: 500;
  color: var(--color-navy-deep);
  letter-spacing: 0.03em;
  line-height: 1.5;
  margin-bottom: 24px;
}

.hero__name strong {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-navy-deep);
}

.accent-line {
  display: block;
  width: 32px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
  margin: 0 auto 24px;
}

.eyebrow {
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-sub);
  margin-bottom: 20px;
}

.hero__title {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--color-navy-deep);
  margin-bottom: 24px;
}

.hero__lead {
  font-size: 15px;
  color: var(--color-text-sub);
}

/* ---------- Stats ---------- */
.stats {
  padding: 64px 0;
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.stat-card {
  background: var(--color-surface);
  border: 0.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 20px;
  text-align: center;
}

.stat-card__num {
  font-family: var(--font-display);
  font-size: 34px;
  font-weight: 500;
  color: var(--color-navy);
}

.stat-card__unit {
  font-size: 16px;
  margin-left: 2px;
}

.stat-card__label {
  font-size: 13px;
  color: var(--color-text-sub);
  margin-top: 8px;
}

.stats__note {
  font-size: 12px;
  color: var(--color-text-faint);
  margin-top: 16px;
  text-align: right;
}

/* ---------- Timeline ---------- */
.timeline {
  padding: 64px 0;
}

.timeline__list {
  border-left: 2px solid var(--color-border);
  padding-left: 28px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.timeline__year {
  font-size: 13px;
  color: var(--color-navy);
  font-weight: 500;
  margin-bottom: 4px;
}

.timeline__body {
  font-size: 14px;
  color: var(--color-text-sub);
}

/* ---------- Value ---------- */
.value {
  padding: 64px 0;
}

.value__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.value-card {
  background: var(--color-surface);
  border: 0.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px 20px;
}

.value-card__title {
  font-size: 15px;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--color-navy-deep);
}

.value-card__desc {
  font-size: 13px;
  color: var(--color-text-sub);
}

/* ---------- Works ---------- */
.works {
  padding: 64px 0;
}

.works__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.work-card {
  background: var(--color-surface);
  border: 0.5px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.work-card__thumb {
  height: 140px;
  background: var(--color-bg-card);
  overflow: hidden;
}

.work-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
}

.work-card__thumb--contain img {
  object-fit: contain;
}

.work-card__thumb--app img {
  object-fit: cover;
  object-position: top center;
}

.work-card__body {
  padding: 18px 20px 22px;
}

.work-card__tag {
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--color-text-faint);
  margin-bottom: 8px;
}

.work-card__title {
  font-size: 15px;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--color-ink);
}

.work-card__desc {
  font-size: 13px;
  color: var(--color-text-sub);
  margin-bottom: 14px;
}

.work-card__link {
  font-size: 13px;
  color: var(--color-accent);
  border-bottom: 1px solid var(--color-accent);
  padding-bottom: 1px;
}

/* ---------- Teaching ---------- */
.teaching {
  padding: 64px 0;
}

.teaching__lead {
  font-size: 14px;
  color: var(--color-text-sub);
  line-height: 1.9;
  max-width: 760px;
  margin-bottom: 32px;
}

.teaching__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.teaching-card {
  background: var(--color-surface);
  border: 0.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px 20px;
}

.teaching-card__title {
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--color-navy-deep);
}

.teaching-card__desc {
  font-size: 13px;
  color: var(--color-text-sub);
}

/* ---------- Skills ---------- */
.skills {
  padding: 64px 0;
}

.skills__list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.skills__list li {
  font-size: 13px;
  background: var(--color-bg-card);
  color: var(--color-navy-deep);
  padding: 8px 16px;
  border-radius: 20px;
}

/* ---------- Philosophy ---------- */
.philosophy {
  position: relative;
  padding: 120px 0;
  color: var(--color-bg);
  overflow: hidden;
}

.philosophy__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.philosophy__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.philosophy__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(22, 41, 74, 0.85) 0%, rgba(22, 41, 74, 0.75) 100%);
}

.philosophy__inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 620px;
}

.philosophy .section-title {
  color: rgba(245, 246, 247, 0.7);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 28px;
}

.philosophy__quote {
  font-family: var(--font-display);
  font-size: 22px;
  line-height: 1.9;
  margin-bottom: 24px;
}

.philosophy__motto {
  font-size: 14px;
  color: var(--color-accent);
  letter-spacing: 0.04em;
}

/* ---------- Blog ---------- */
.blog {
  padding: 48px 0;
  border-bottom: 0.5px solid var(--color-border);
}

.blog__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.blog__title {
  font-size: 15px;
  font-weight: 500;
  margin-bottom: 6px;
}

.blog__desc {
  font-size: 13px;
  color: var(--color-text-sub);
}

.blog__link {
  font-size: 13px;
  color: var(--color-accent);
  border-bottom: 1px solid var(--color-accent);
  padding-bottom: 1px;
  white-space: nowrap;
}

/* ---------- Contact ---------- */
.contact {
  padding: 88px 0;
}

.contact__inner {
  text-align: center;
  max-width: 520px;
}

.contact__lead {
  font-size: 14px;
  color: var(--color-text-sub);
  margin-bottom: 32px;
}

.contact__actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.contact-form {
  text-align: left;
  margin-bottom: 8px;
}

.contact-form__row {
  margin-bottom: 20px;
}

.contact-form__row label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-ink);
  margin-bottom: 8px;
}

.contact-form__required {
  font-size: 10px;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
  border-radius: 3px;
  padding: 1px 6px;
  margin-left: 8px;
  letter-spacing: 0.03em;
}

.contact-form__row input,
.contact-form__row select,
.contact-form__row textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--color-ink);
  background: var(--color-surface);
  border: 0.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
}

.contact-form__row textarea {
  resize: vertical;
}

.contact-form__hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.contact-confirm {
  text-align: left;
}

.contact-confirm__note {
  font-size: 13px;
  color: var(--color-text-sub);
  margin-bottom: 20px;
}

.contact-confirm__list {
  border-top: 0.5px solid var(--color-border);
  margin-bottom: 24px;
}

.contact-confirm__item {
  padding: 14px 0;
  border-bottom: 0.5px solid var(--color-border);
}

.contact-confirm__item dt {
  font-size: 12px;
  color: var(--color-text-faint);
  margin-bottom: 4px;
}

.contact-confirm__item dd {
  font-size: 14px;
  color: var(--color-ink);
  white-space: pre-wrap;
}

.contact-confirm__error {
  font-size: 13px;
  color: #B23A3A;
  background: #FBEAEA;
  border: 0.5px solid #E6B8B8;
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  margin-bottom: 20px;
}

.contact-done {
  text-align: center;
  padding: 24px 0;
}

.contact-done__title {
  font-size: 16px;
  font-weight: 500;
  color: var(--color-navy-deep);
  margin-bottom: 10px;
}

.contact-done__desc {
  font-size: 13px;
  color: var(--color-text-sub);
}

.btn {
  display: inline-block;
  font-size: 14px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  border: none;
  font-family: var(--font-body);
  cursor: pointer;
}

.btn--primary {
  background: var(--color-navy);
  color: var(--color-bg);
}

.btn--secondary {
  border: 1px solid var(--color-border);
  color: var(--color-ink);
  background: transparent;
}

/* ---------- Footer ---------- */
.footer {
  padding: 32px 0;
  text-align: center;
  font-size: 12px;
  color: var(--color-text-faint);
}

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
  .nav {
    display: none;
  }

  .hero {
    padding: 88px 0 64px;
  }

  .hero__bg img {
    object-position: 65% 22%;
    mask-image: none;
    -webkit-mask-image: none;
    opacity: 0.28;
  }

  .hero__title {
    font-size: 30px;
  }

  .stats__grid,
  .value__grid,
  .works__grid,
  .teaching__grid {
    grid-template-columns: 1fr;
  }

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

/* ---------- Work Detail Page ---------- */
.logo a {
  color: inherit;
}

.work-detail-hero {
  padding: 64px 0 40px;
}

.back-link {
  display: inline-block;
  font-size: 13px;
  color: var(--color-text-sub);
  margin-bottom: 24px;
}

.back-link:hover {
  color: var(--color-accent);
}

.work-detail-tag {
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--color-text-faint);
  margin-bottom: 12px;
}

.work-detail-title {
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 500;
  color: var(--color-navy-deep);
  margin-bottom: 16px;
  line-height: 1.5;
}

.work-detail-lead {
  font-size: 14px;
  color: var(--color-text-sub);
  max-width: 640px;
}

.work-detail-compare {
  padding: 24px 0 64px;
}

.compare-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.compare-item {
  background: var(--color-surface);
  border: 0.5px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.compare-item img {
  width: 100%;
  height: auto;
  display: block;
}

.compare-item figcaption {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-sub);
  padding: 10px 16px;
  border-top: 0.5px solid var(--color-border);
}

.work-detail-body {
  padding: 24px 0 64px;
}

.work-detail-body__inner {
  max-width: 760px;
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.work-detail-block__label {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.work-detail-block__text {
  font-size: 14px;
  color: var(--color-ink);
  line-height: 1.9;
}

.work-detail-note {
  font-size: 12px;
  color: var(--color-text-faint);
  margin-top: 12px;
}

.work-detail-nav {
  padding: 0 0 88px;
}

@media (max-width: 720px) {
  .compare-grid {
    grid-template-columns: 1fr;
  }

  .work-detail-title {
    font-size: 24px;
  }
}

.order-screen-figure {
  max-width: 180px;
  margin: 0 auto;
}

.order-screen-grid {
  max-width: 420px;
  margin: 0 auto;
}

.order-screen-grid .order-screen-figure {
  max-width: none;
  margin: 0;
}