/* ==========================================================================
   SYNTHERA — Site components (new for the SaaS-company rebuild)
   Builds on style.css (design system) + home.css (splash / nav / hero / footer).
   White-based, generous whitespace, quiet motion. Dark only on hero/closing/footer.
   ========================================================================== */

:root {
  /* Per-product accent. Pages override on <body style="--accent:#…">.
     Default resolves to ink so the base brand stays mono. */
  --accent: var(--color-ink);
  --accent-soft: rgba(10, 10, 10, 0.06);
  --side: clamp(20px, 4vw, 56px);
  --shell: 1320px;
}

/* ===== Generic light section (reuses .info-section rhythm, simpler head) ===== */
.sect {
  background: #fff;
  color: var(--color-ink);
  padding: clamp(72px, 10vw, 150px) var(--side);
}
.sect--soft { background: #faf9f7; }
.sect--tight { padding: clamp(48px, 6vw, 90px) var(--side); }
.sect__inner { max-width: var(--shell); margin: 0 auto; }

.sect__head {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 56px;
  align-items: flex-start;
  margin-bottom: clamp(40px, 6vw, 80px);
}
.sect__label {
  font-family: var(--font-sans);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-muted);
  padding-top: 14px;
}
.sect__title {
  font-family: var(--font-serif), var(--font-jp);
  font-weight: 600;
  font-size: clamp(32px, 5vw, 76px);
  line-height: 1.06;
  letter-spacing: -0.018em;
}
.sect__title em { font-style: italic; }
.sect__lead {
  margin-top: 28px;
  max-width: 60ch;
  font-family: var(--font-jp);
  font-size: 15px;
  line-height: 2;
  color: #2b2b2b;
}
.sect__lead strong {
  font-weight: 600;
  background: var(--color-ink);
  color: #fff;
  padding: 0 6px;
}

@media (min-width: 901px) {
  .sect__lead { max-width: 100%; }
}

@media (max-width: 900px) {
  .sect__head { grid-template-columns: 1fr; gap: 14px; margin-bottom: 36px; }
  .sect__title { font-size: 30px; }
}

/* ===== Three-point statement block (e.g. "what is SUMI") ===== */
.points {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  border-top: 1px solid var(--color-ink);
  padding-top: 48px;
}
.point__no {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  margin-bottom: 18px;
}
.point__head {
  font-family: var(--font-serif), var(--font-jp);
  font-weight: 600;
  font-size: clamp(20px, 2vw, 26px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin-bottom: 14px;
}
.point__body {
  font-family: var(--font-jp);
  font-size: 14px;
  line-height: 1.95;
  color: #3a3a3a;
}
@media (max-width: 900px) {
  .points { grid-template-columns: 1fr; gap: 32px; padding-top: 32px; }
}

/* ===== Product showcase cards (Home preview + SUMI 3本柱) ===== */
.products {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.product-card {
  --pc-accent: var(--color-ink);
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: 14px;
  overflow: hidden;
  color: var(--color-ink);
  transition: transform 0.5s var(--ease-expo), box-shadow 0.5s var(--ease-expo), border-color 0.5s var(--ease-expo);
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 26px 60px -28px rgba(10, 10, 10, 0.35);
  border-color: rgba(10, 10, 10, 0.14);
}
.product-card__media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #f1efea;
}
.product-card__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.9s var(--ease-expo);
}
.product-card:hover .product-card__media img { transform: scale(1.05); }

/* 開発中（工事現場風）プレースホルダ */
.product-card__media--wip {
  background: #15140f;
  display: grid;
  place-items: center;
}
.product-card__media--wip::before,
.product-card__media--wip::after {
  content: "";
  position: absolute;
  left: 0; right: 0;
  height: 16px;
  background: repeating-linear-gradient(45deg, #f4d03f 0 16px, #15140f 16px 32px);
  z-index: 0;
}
.product-card__media--wip::before { top: 0; }
.product-card__media--wip::after { bottom: 0; }
.product-card__media--wip .wip {
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  text-align: center; z-index: 1;
}
.wip__text {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(20px, 2.4vw, 26px);
  letter-spacing: 0.14em;
  color: #f4d03f;
}
.wip__sub {
  font-family: var(--font-sans);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
}

/* 製品ページ hero の「開発中」プレースホルダ */
.prod-hero__visual--wip {
  position: relative;
  overflow: hidden;
  background: #15140f;
  border-radius: 14px;
  min-height: 320px;
  display: grid;
  place-items: center;
}
.prod-hero__visual--wip::before,
.prod-hero__visual--wip::after {
  content: "";
  position: absolute;
  left: 0; right: 0;
  height: 16px;
  background: repeating-linear-gradient(45deg, #f4d03f 0 16px, #15140f 16px 32px);
  z-index: 0;
}
.prod-hero__visual--wip::before { top: 0; }
.prod-hero__visual--wip::after { bottom: 0; }
.prod-hero__visual--wip .wip {
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  text-align: center; z-index: 1;
}
.product-card__tag {
  position: absolute;
  top: 14px; left: 14px;
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-sans);
  font-size: 9px; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: #fff;
  background: var(--pc-accent);
  padding: 5px 11px;
  border-radius: 999px;
}
.product-card__body {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 28px 26px 30px;
  flex: 1;
}
.product-card__name {
  font-family: var(--font-serif), var(--font-jp);
  font-weight: 600;
  font-size: clamp(24px, 2.4vw, 32px);
  letter-spacing: -0.015em;
  line-height: 1.1;
}
.product-card__desc {
  font-family: var(--font-jp);
  font-size: 14px;
  line-height: 1.8;
  color: #3a3a3a;
  flex: 1;
}
.product-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 2px;
}
.product-card__chip {
  font-family: var(--font-sans);
  font-size: 10px; font-weight: 500;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--color-muted);
  border: 1px solid var(--color-line);
  padding: 5px 11px;
  border-radius: 999px;
}
.product-card__chip--status {
  color: var(--pc-accent);
  border-color: color-mix(in srgb, var(--pc-accent) 40%, transparent);
}
.product-card__view {
  margin-top: 8px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--pc-accent);
}
.product-card__view::after {
  content: "→";
  transition: transform 0.4s var(--ease-expo);
}
.product-card:hover .product-card__view::after { transform: translateX(6px); }

@media (max-width: 900px) {
  .products { grid-template-columns: 1fr; gap: 20px; }
}

/* ===== Big callout band (SUMI teaser / expansion vision) ===== */
.band {
  background: #faf9f7;
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  padding: clamp(64px, 9vw, 130px) var(--side);
}
.band--ink {
  background: var(--color-ink);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.1);
}
.band__inner {
  max-width: var(--shell);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 56px;
  align-items: flex-start;
}
.band__label {
  font-family: var(--font-sans);
  font-size: 10px; font-weight: 500;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--color-muted);
  padding-top: 12px;
}
.band--ink .band__label { color: rgba(255, 255, 255, 0.55); }
.band__title {
  font-family: var(--font-serif), var(--font-jp);
  font-weight: 600;
  font-size: clamp(28px, 4.4vw, 64px);
  line-height: 1.1;
  letter-spacing: -0.018em;
}
.band__title em { font-style: italic; }
.band__text {
  margin-top: 26px;
  max-width: 60ch;
  font-family: var(--font-jp);
  font-size: 15px;
  line-height: 2;
  color: #3a3a3a;
}
.band--ink .band__text { color: rgba(255, 255, 255, 0.78); }
.band__cta { margin-top: 32px; }
@media (max-width: 900px) {
  .band__inner { grid-template-columns: 1fr; gap: 18px; }
}

/* ===== Inline CTA link (accent-aware) ===== */
.cta-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-sans);
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--accent);
  position: relative;
  padding-bottom: 5px;
}
.cta-link::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: currentColor;
  transform-origin: 100% 50%;
  transform: scaleX(1);
  transition: transform 0.6s var(--ease-expo);
}
.cta-link:hover::after { animation: link-rebound 0.8s var(--ease-expo); }
.band--ink .cta-link { color: #fff; }

/* ===== Pill button (downloads, primary actions) ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 18px 34px;
  border-radius: 999px;
  font-family: var(--font-sans);
  font-size: 12px; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase;
  background: var(--accent);
  color: #fff;
  transition: transform 0.4s var(--ease-expo), opacity 0.4s var(--ease-expo);
}
.btn:hover { transform: translateY(-2px); }
.btn--ghost {
  background: transparent;
  color: var(--color-ink);
  border: 1px solid var(--color-line-strong);
}
.btn--on-ink { background: #fff; color: var(--color-ink); }
.btn-row { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }

/* Placeholder store badges */
.store-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  border: 1px dashed var(--color-line-strong);
  border-radius: 12px;
  font-family: var(--font-sans);
  font-size: 11px; font-weight: 500;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--color-muted);
}

/* ==========================================================================
   PRODUCT DETAIL TEMPLATE (tosche / tosche-biz / tomori)
   ========================================================================== */

.prod-hero {
  position: relative;
  background: var(--color-ink);
  color: #fff;
  overflow: hidden;
}
.prod-hero__inner {
  max-width: var(--shell);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
  padding: clamp(140px, 16vw, 220px) var(--side) clamp(72px, 10vw, 130px);
}
.prod-hero__eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-sans);
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 26px;
}
.prod-hero__eyebrow::before {
  content: ""; width: 26px; height: 1px; background: var(--accent);
}
.prod-hero__title {
  font-family: var(--font-serif), var(--font-jp);
  font-weight: 600;
  font-size: clamp(40px, 6.4vw, 92px);
  line-height: 1.0;
  letter-spacing: -0.02em;
}
.prod-hero__title em { font-style: italic; color: var(--accent); }
.prod-hero__tagline {
  margin-top: 22px;
  font-family: var(--font-serif), var(--font-jp);
  font-weight: 500;
  font-size: clamp(18px, 2vw, 24px);
  line-height: 1.4;
  color: rgba(255, 255, 255, 0.9);
}
.prod-hero__sub {
  margin-top: 22px;
  max-width: 46ch;
  font-family: var(--font-jp);
  font-size: 15px;
  line-height: 1.95;
  color: rgba(255, 255, 255, 0.72);
}
.prod-hero__actions { margin-top: 38px; }
.prod-hero__visual {
  position: relative;
  border-radius: 18px;
  overflow: hidden;
  aspect-ratio: 4 / 5;
  background: rgba(255, 255, 255, 0.05);
  box-shadow: 0 40px 90px -40px rgba(0, 0, 0, 0.7);
}
.prod-hero__visual img { width: 100%; height: 100%; object-fit: cover; }

@media (max-width: 900px) {
  .prod-hero__inner { grid-template-columns: 1fr; gap: 40px; padding: 120px 16px 64px; }
  .prod-hero__visual { aspect-ratio: 4 / 4; }
}

/* Problem / Solution / Positioning text section */
.prod-block {
  padding: clamp(64px, 9vw, 130px) var(--side);
}
.prod-block--soft { background: #faf9f7; }
.prod-block__inner {
  max-width: var(--shell);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 56px;
  align-items: flex-start;
}
.prod-block__label {
  font-family: var(--font-sans);
  font-size: 10px; font-weight: 500;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--accent);
  padding-top: 12px;
}
.prod-block__title {
  font-family: var(--font-serif), var(--font-jp);
  font-weight: 600;
  font-size: clamp(26px, 3.4vw, 46px);
  line-height: 1.18;
  letter-spacing: -0.015em;
}
.prod-block__text {
  margin-top: 22px;
  max-width: 62ch;
  font-family: var(--font-jp);
  font-size: 15px;
  line-height: 2;
  color: #333;
}
.prod-block__text strong { font-weight: 600; color: var(--color-ink); }
@media (max-width: 900px) {
  .prod-block__inner { grid-template-columns: 1fr; gap: 16px; }
}

/* Feature list */
.feature-list {
  margin-top: 10px;
  border-top: 1px solid var(--color-ink);
}
.feature-list__row {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 24px;
  padding: 26px 0;
  border-bottom: 1px solid var(--color-line);
  align-items: flex-start;
}
.feature-list__no {
  font-family: var(--font-sans);
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  padding-top: 4px;
}
.feature-list__name {
  font-family: var(--font-serif), var(--font-jp);
  font-weight: 600;
  font-size: clamp(18px, 1.9vw, 24px);
  line-height: 1.3;
  margin-bottom: 8px;
}
.feature-list__desc {
  font-family: var(--font-jp);
  font-size: 14px;
  line-height: 1.85;
  color: #3a3a3a;
  max-width: 62ch;
}

/* Pricing table */
.pricing {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 10px;
}
.price-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 34px 30px;
  border: 1px solid var(--color-line);
  border-radius: 14px;
  background: #fff;
}
.price-card--featured {
  border-color: var(--accent);
  box-shadow: 0 24px 60px -34px color-mix(in srgb, var(--accent) 60%, transparent);
}
.price-card__tier {
  font-family: var(--font-sans);
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--color-muted);
}
.price-card--featured .price-card__tier { color: var(--accent); }
.price-card__price {
  font-family: var(--font-serif), var(--font-jp);
  font-weight: 600;
  font-size: clamp(30px, 3.4vw, 44px);
  letter-spacing: -0.02em;
  line-height: 1;
}
.price-card__price small {
  font-size: 0.4em;
  font-weight: 500;
  color: var(--color-muted);
  letter-spacing: 0;
  margin-left: 6px;
}
.price-card__note {
  font-family: var(--font-jp);
  font-size: 13px;
  line-height: 1.8;
  color: #3a3a3a;
}
@media (max-width: 900px) {
  .pricing { grid-template-columns: 1fr; }
}

/* Differentiation highlight card */
.highlight {
  margin-top: 10px;
  padding: clamp(34px, 4vw, 56px);
  border-radius: 18px;
  background: var(--color-ink);
  color: #fff;
}
.highlight__kicker {
  font-family: var(--font-sans);
  font-size: 10px; font-weight: 600;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}
.highlight__title {
  font-family: var(--font-serif), var(--font-jp);
  font-weight: 600;
  font-size: clamp(24px, 3vw, 40px);
  line-height: 1.2;
  letter-spacing: -0.015em;
}
.highlight__title em { font-style: italic; color: var(--accent); }
.highlight__text {
  margin-top: 20px;
  max-width: 64ch;
  font-family: var(--font-jp);
  font-size: 15px;
  line-height: 1.95;
  color: rgba(255, 255, 255, 0.78);
}

/* Audience tag cloud */
.tags { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 10px; }
.tags span {
  font-family: var(--font-jp);
  font-size: 14px;
  color: var(--color-ink);
  border: 1px solid var(--color-line-strong);
  padding: 10px 18px;
  border-radius: 999px;
}

/* Gallery */
.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 10px;
}
.gallery figure {
  border-radius: 14px;
  overflow: hidden;
  aspect-ratio: 3 / 4;
  background: #f1efea;
}
.gallery img { width: 100%; height: 100%; object-fit: cover; }
@media (max-width: 900px) {
  .gallery { grid-template-columns: 1fr 1fr; }
}

/* Labelled placeholder frame (for missing assets) */
.ph-frame {
  display: grid;
  place-items: center;
  background:
    repeating-linear-gradient(45deg, #f3f1ec 0 12px, #efece6 12px 24px);
  color: var(--color-muted);
  font-family: var(--font-sans);
  font-size: 10px; font-weight: 600;
  letter-spacing: 0.16em; text-transform: uppercase;
  text-align: center;
  padding: 24px;
}

/* ==========================================================================
   ABOUT — values
   ========================================================================== */
.values {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--color-line);
  border: 1px solid var(--color-line);
}
.value-card {
  background: #fff;
  padding: 40px 36px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.value-card__en {
  font-family: var(--font-serif), var(--font-jp);
  font-weight: 600;
  font-size: clamp(22px, 2.4vw, 30px);
  letter-spacing: -0.01em;
}
.value-card__jp {
  font-family: var(--font-jp);
  font-size: 14px;
  line-height: 1.9;
  color: #3a3a3a;
}
.value-card__no {
  font-family: var(--font-sans);
  font-size: 11px; font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--color-muted);
}
@media (max-width: 900px) {
  .values { grid-template-columns: 1fr; }
  .value-card { padding: 30px 22px; }
}

/* ==========================================================================
   FOUNDER
   ========================================================================== */
.founder-hero {
  background: var(--color-ink);
  color: #fff;
}
.founder-hero__inner {
  max-width: var(--shell);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 0.8fr;
  gap: 56px;
  align-items: center;
  padding: clamp(140px, 16vw, 220px) var(--side) clamp(72px, 10vw, 120px);
}
.founder-hero__eyebrow {
  font-family: var(--font-sans);
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 22px;
}
.founder-hero__name {
  font-family: var(--font-serif), var(--font-jp);
  font-weight: 600;
  font-size: clamp(40px, 6.4vw, 88px);
  line-height: 1.02;
  letter-spacing: -0.02em;
}
.founder-hero__name em { font-style: italic; }
.founder-hero__sub {
  margin-top: 24px;
  max-width: 46ch;
  font-family: var(--font-jp);
  font-size: 15px;
  line-height: 1.95;
  color: rgba(255, 255, 255, 0.74);
}
.founder-hero__photo {
  border-radius: 18px;
  overflow: hidden;
  aspect-ratio: 4 / 5;
  background: rgba(255, 255, 255, 0.05);
}
.founder-hero__photo img { width: 100%; height: 100%; object-fit: cover; }

/* Profile card (写真の代わりに基本情報を表示) */
.founder-profile {
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 18px;
  padding: 34px 32px;
  background: rgba(255, 255, 255, 0.04);
}
.founder-profile__label {
  font-family: var(--font-sans);
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 20px;
}
.founder-profile__list { margin: 0; }
.founder-profile__row {
  display: flex; justify-content: space-between; align-items: baseline; gap: 18px;
  padding: 14px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.founder-profile__row:first-of-type { border-top: 0; padding-top: 0; }
.founder-profile__row dt {
  font-family: var(--font-sans);
  font-size: 11px; font-weight: 500;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5);
  white-space: nowrap;
}
.founder-profile__row dd {
  margin: 0;
  font-family: var(--font-jp);
  font-size: 14.5px;
  color: rgba(255, 255, 255, 0.92);
  text-align: right;
}

/* 代表者メッセージ */
.founder-message__body {
  font-family: var(--font-jp);
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 2.1;
  color: var(--color-ink);
  max-width: 60ch;
}
.founder-message__body p { margin: 0 0 1.4em; }
.founder-message__body p:last-child { margin-bottom: 0; }
.founder-message__sign {
  margin-top: 40px;
  display: flex; flex-direction: column; gap: 4px;
}
.founder-message__sign span {
  font-family: var(--font-sans);
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--color-muted);
}
.founder-message__sign strong {
  font-family: var(--font-serif), var(--font-jp);
  font-size: 22px; font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--color-ink);
}
@media (max-width: 900px) {
  .founder-hero__inner { grid-template-columns: 1fr; gap: 36px; padding: 120px 16px 64px; }
  .founder-profile { padding: 28px 24px; }
}

/* Big stat (300,000) */
.stat-big {
  text-align: center;
  padding: clamp(64px, 10vw, 140px) var(--side);
  background: var(--color-ink);
  color: #fff;
}
.stat-big__label {
  font-family: var(--font-sans);
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 24px;
}
.stat-big__num {
  font-family: var(--font-serif), var(--font-jp);
  font-weight: 600;
  font-size: clamp(72px, 18vw, 280px);
  line-height: 0.9;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}
.stat-big__cap {
  margin-top: 28px;
  font-family: var(--font-jp);
  font-size: 15px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.74);
  max-width: 52ch;
  margin-inline: auto;
}

/* Leverage chain */
.leverage {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 10px;
}
.lev-card {
  padding: 30px 26px;
  border: 1px solid var(--color-line);
  border-radius: 14px;
  background: #fff;
}
.lev-card__no {
  font-family: var(--font-sans);
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--color-muted);
  margin-bottom: 16px;
}
.lev-card__head {
  font-family: var(--font-serif), var(--font-jp);
  font-weight: 600;
  font-size: 19px;
  line-height: 1.3;
  margin-bottom: 10px;
}
.lev-card__body {
  font-family: var(--font-jp);
  font-size: 13px;
  line-height: 1.85;
  color: #3a3a3a;
}
@media (max-width: 900px) {
  .leverage { grid-template-columns: 1fr; }
}

/* Social follow links */
.socials {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 10px;
}
.socials a {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 26px;
  border: 1px solid var(--color-line-strong);
  border-radius: 999px;
  font-family: var(--font-sans);
  font-size: 12px; font-weight: 500;
  letter-spacing: 0.1em; text-transform: uppercase;
  transition: background 0.4s var(--ease-quart), color 0.4s var(--ease-quart);
}
.socials a:hover { background: var(--color-ink); color: #fff; }
.socials a::after { content: "↗"; opacity: 0.5; }

/* ==========================================================================
   MOBILE OPTIMIZATION — phones (≤ 600px)
   Single-breakpoint base above is tuned for tablets; this layer makes the
   site feel designed *for* the phone, not just shrunk.
   ========================================================================== */
@media (max-width: 600px) {
  :root { --side: 18px; }

  /* Sections: tighter vertical rhythm, fluid display type */
  .sect { padding: 60px var(--side); }
  .sect--tight { padding: 44px var(--side); }
  .sect__head { margin-bottom: 28px; }
  .sect__title { font-size: clamp(26px, 8vw, 34px); line-height: 1.1; }
  .sect__lead { font-size: 14.5px; line-height: 1.9; margin-top: 18px; }

  .points { gap: 26px; padding-top: 28px; }
  .point__head { font-size: 21px; }

  /* Product cards: wider media crop reads better on a narrow column */
  .products { gap: 16px; }
  .product-card__media { aspect-ratio: 16 / 10; }
  .product-card__body { padding: 22px 20px 24px; gap: 10px; }
  .product-card__name { font-size: 24px; }
  .product-card__desc { font-size: 13.5px; }

  /* Bands */
  .band { padding: 60px var(--side); }
  .band__title { font-size: clamp(26px, 8vw, 34px); }
  .band__text { font-size: 14.5px; line-height: 1.9; margin-top: 16px; }
  .band__cta { margin-top: 26px; }

  /* Primary actions become full-width, easy-to-tap */
  .btn { width: 100%; justify-content: center; padding: 17px 24px; }
  .btn-row { width: 100%; gap: 12px; }
  .btn-row > .btn { flex: 1 1 100%; }
  .store-badge { width: 100%; justify-content: center; }

  /* Product detail template */
  .prod-hero__inner { padding: 100px 18px 56px; gap: 30px; }
  .prod-hero__title { font-size: clamp(34px, 10vw, 52px); line-height: 1.04; }
  .prod-hero__tagline { font-size: 17px; }
  .prod-hero__sub { font-size: 14.5px; }
  .prod-hero__visual { aspect-ratio: 1 / 1; }
  .prod-block { padding: 56px var(--side); }
  .prod-block__title { font-size: clamp(24px, 7.4vw, 32px); }
  .prod-block__text { font-size: 14.5px; line-height: 1.95; }
  .feature-list__row { grid-template-columns: 30px 1fr; gap: 16px; padding: 22px 0; }
  .feature-list__name { font-size: 19px; }
  .highlight { padding: 30px 24px; border-radius: 16px; }
  .highlight__title { font-size: clamp(22px, 6.4vw, 30px); }
  .tags { gap: 10px; }
  .tags span { font-size: 13px; padding: 9px 15px; }
  .gallery { grid-template-columns: 1fr 1fr; gap: 12px; }

  /* About values */
  .value-card { padding: 26px 20px; gap: 12px; }
  .value-card__en { font-size: 22px; }

  /* Founder */
  .founder-hero__inner { padding: 100px 18px 56px; gap: 26px; }
  .founder-hero__name { font-size: clamp(34px, 10vw, 52px); }
  .founder-hero__sub { font-size: 14.5px; }
  .stat-big { padding: 64px var(--side); }
  .stat-big__num { font-size: clamp(64px, 30vw, 132px); }
  .stat-big__cap { font-size: 14px; }
  .leverage { gap: 14px; }
  .lev-card { padding: 24px 20px; }
  .socials { gap: 12px; }
  .socials a { width: 100%; justify-content: center; padding: 16px 22px; }
}

/* Very small phones */
@media (max-width: 380px) {
  :root { --side: 16px; }
  .sect__title, .band__title { font-size: 24px; }
  .product-card__name { font-size: 22px; }
}
