:root {
  color-scheme: light;
  --sumi: #151515;
  --sumi-soft: #36322e;
  --ink-muted: #675f56;
  --washi: #f7f1e3;
  --paper: #fffaf0;
  --paper-deep: #efe5d2;
  --line: #cfc4b3;
  --indigo: #1b315f;
  --vermilion: #b42318;
  --moss: #56664f;
  --gold: #b58945;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background-color: var(--washi);
  background-image:
    radial-gradient(circle at 20% 10%, rgba(180, 35, 24, 0.08), transparent 18rem),
    linear-gradient(90deg, rgba(21, 21, 21, 0.035) 1px, transparent 1px),
    linear-gradient(0deg, rgba(21, 21, 21, 0.025) 1px, transparent 1px);
  background-size: auto, 32px 32px, 32px 32px;
  color: var(--sumi);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
}

a,
button,
input {
  transition: border-color 160ms ease, color 160ms ease, background-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

button {
  cursor: pointer;
}

.skip-link {
  position: fixed;
  left: 1rem;
  top: 1rem;
  z-index: 100;
  transform: translateY(-150%);
  background: var(--sumi);
  color: #fff;
  padding: 0.75rem 1rem;
  font-weight: 800;
}

.skip-link:focus {
  transform: translateY(0);
  outline: 3px solid var(--gold);
  outline-offset: 3px;
}

.kami-header {
  border-bottom: 1px solid var(--sumi);
  background: rgba(255, 250, 240, 0.94);
  backdrop-filter: blur(12px);
}

.top-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  border-bottom: 1px solid var(--line);
  padding: 0.55rem clamp(1rem, 4vw, 3rem);
  color: var(--ink-muted);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.masthead {
  display: grid;
  gap: 1.5rem;
  max-width: 78rem;
  margin: 0 auto;
  padding: 1.1rem clamp(1rem, 4vw, 3rem) 1.25rem;
}

.brand-link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 1rem;
  color: inherit;
  text-decoration: none;
}

.brand-seal {
  display: grid;
  width: 4rem;
  height: 4rem;
  place-items: center;
  border-radius: 999px;
  background: var(--vermilion);
  color: #fff;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
  box-shadow: inset 0 0 0 6px rgba(255, 255, 255, 0.16);
}

.wordmark {
  display: block;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2rem, 7vw, 5rem);
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 0.94;
}

.brand-subline {
  display: block;
  margin-top: 0.4rem;
  color: var(--ink-muted);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.primary-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border: 1px solid var(--sumi);
  background: var(--paper);
}

.primary-nav a {
  display: flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--sumi);
  font-size: 0.82rem;
  font-weight: 850;
  letter-spacing: 0.14em;
  text-decoration: none;
  text-transform: uppercase;
}

.primary-nav a:nth-child(even) {
  border-right: 0;
}

.primary-nav a:nth-last-child(-n + 2) {
  border-bottom: 0;
}

.primary-nav a:hover,
.primary-nav a.active {
  background: var(--sumi);
  color: #fff;
}

.primary-nav a:focus,
.site-footer a:focus,
.site-footer button:focus,
.modal-close:focus,
.subscription-card button:focus,
.subscription-card input:focus,
.story-ledger a:focus,
.cookie-consent__button:focus {
  outline: 3px solid rgba(180, 35, 24, 0.28);
  outline-offset: 3px;
}

.paper-shell {
  max-width: 78rem;
  margin: 0 auto;
  padding: clamp(1.25rem, 4vw, 3rem);
}

.lead-composition {
  display: grid;
  gap: 1rem;
  align-items: stretch;
}

.vertical-note {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  border: 1px solid var(--vermilion);
  background: var(--vermilion);
  color: #fff;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.25em;
  padding: 0.8rem 0.9rem;
}

.lead-copy,
.section-intro {
  border: 1px solid var(--sumi);
  background: rgba(255, 250, 240, 0.92);
  padding: clamp(1.2rem, 4vw, 2rem);
  box-shadow: 12px 12px 0 rgba(27, 49, 95, 0.08);
}

.kicker {
  color: var(--vermilion);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.18em;
  margin: 0;
  text-transform: uppercase;
}

.lead-copy h1,
.section-intro h1 {
  margin: 0.8rem 0 0;
  max-width: 52rem;
  color: var(--sumi);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.6rem, 9vw, 6.8rem);
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 0.94;
}

.dek,
.section-intro > p:not(.kicker) {
  max-width: 42rem;
  margin: 1.15rem 0 0;
  color: var(--sumi-soft);
  font-size: clamp(1rem, 2vw, 1.22rem);
  line-height: 1.65;
}

.issue-card,
.section-stamp {
  border: 1px solid var(--sumi);
  background: var(--sumi);
  color: #fff;
  padding: 1.1rem;
}

.issue-label {
  margin: 0;
  color: #d8cbb9;
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.issue-topic {
  margin: 0.45rem 0 1rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.45rem;
  line-height: 1.1;
}

.issue-card dl {
  display: grid;
  gap: 0.8rem;
  margin: 0;
}

.issue-card div {
  border-top: 1px solid rgba(255, 255, 255, 0.24);
  padding-top: 0.75rem;
}

.issue-card dt {
  color: #cfc4b3;
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.issue-card dd {
  margin: 0.25rem 0 0;
  color: #fff;
  font-size: 0.96rem;
  font-weight: 700;
}

.image-scroll {
  display: grid;
  grid-template-columns: 1fr;
  margin: clamp(1.5rem, 4vw, 3rem) 0;
  border: 1px solid var(--sumi);
  background: var(--paper);
}

.image-scroll img {
  display: block;
  width: 100%;
  height: clamp(20rem, 48vw, 34rem);
  object-fit: cover;
  filter: saturate(0.84) contrast(1.05);
}

.image-scroll figcaption {
  border-top: 1px solid var(--sumi);
  color: var(--ink-muted);
  font-size: 0.84rem;
  font-weight: 650;
  line-height: 1.6;
  padding: 1rem;
}

.story-grid {
  display: grid;
  gap: 1.5rem;
  align-items: start;
}

.index-strip,
.signal-board {
  border: 1px solid var(--line);
  background: rgba(255, 250, 240, 0.86);
  padding: 1rem;
}

.index-strip p,
.signal-title {
  margin: 0;
  color: var(--vermilion);
  font-size: 0.74rem;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.index-strip ol {
  display: grid;
  gap: 0.75rem;
  margin: 1rem 0 0;
  padding-left: 1.2rem;
  color: var(--sumi-soft);
  font-size: 0.92rem;
  font-weight: 750;
  line-height: 1.4;
}

.story-panel {
  border-left: 1px solid var(--line);
  border-right: 1px solid var(--line);
  background: rgba(255, 250, 240, 0.72);
  padding: clamp(1rem, 3vw, 2rem);
}

.story-paragraph {
  color: var(--sumi-soft);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.08rem, 2vw, 1.24rem);
  line-height: 1.86;
  margin: 0 0 1.6rem;
}

.story-panel > .story-paragraph:first-child::first-letter {
  float: left;
  margin: 0.08em 0.12em 0 0;
  color: var(--vermilion);
  font-size: 4.8rem;
  line-height: 0.82;
}

.premium-zone {
  position: relative;
  min-height: 42rem;
  margin-top: 2rem;
  border: 1px solid var(--sumi);
  background:
    linear-gradient(90deg, rgba(21, 21, 21, 0.035) 1px, transparent 1px),
    var(--paper);
  background-size: 28px 28px;
  padding: clamp(1rem, 4vw, 2rem);
}

.premium-zone::before {
  content: "会員";
  position: absolute;
  top: -1px;
  right: -1px;
  background: var(--vermilion);
  color: #fff;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.25em;
  padding: 0.7rem 0.8rem;
  writing-mode: vertical-rl;
}

.premium-copy {
  filter: blur(5px);
  pointer-events: none;
  user-select: none;
}

.premium-copy h2 {
  margin: 0 0 1.2rem;
  color: var(--sumi);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2rem, 6vw, 4rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1;
}

.premium-copy blockquote {
  margin: 2rem 0;
  border-left: 5px solid var(--vermilion);
  background: #f0eadb;
  padding: 1.2rem 1.25rem;
}

.premium-copy blockquote p {
  color: var(--sumi-soft);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.08rem;
  font-style: italic;
  line-height: 1.7;
  margin: 0;
}

.subscription-card {
  position: absolute;
  left: 1rem;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  border: 1px solid var(--sumi);
  background: rgba(255, 250, 240, 0.98);
  padding: 1.25rem;
  box-shadow: 10px 10px 0 rgba(180, 35, 24, 0.14), 0 24px 55px rgba(21, 21, 21, 0.16);
}

.subscription-card h3 {
  margin: 0.45rem 0 0;
  color: var(--sumi);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.55rem, 5vw, 2.4rem);
  font-weight: 500;
  line-height: 1.08;
}

.subscription-card form {
  display: grid;
  gap: 0.85rem;
  margin-top: 1rem;
}

.subscription-card label {
  display: block;
  color: var(--sumi);
  font-size: 0.82rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  margin-bottom: 0.35rem;
  text-transform: uppercase;
}

.subscription-card input {
  width: 100%;
  min-height: 2.9rem;
  border: 1px solid var(--sumi);
  background: #fffef8;
  color: var(--sumi);
  padding: 0.65rem 0.75rem;
}

.subscription-card button {
  min-height: 3rem;
  border: 1px solid var(--sumi);
  background: var(--sumi);
  color: #fff;
  font-size: 0.84rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  padding: 0.8rem 1rem;
  text-transform: uppercase;
}

.subscription-card button:hover {
  background: var(--indigo);
}

.signal-board {
  display: grid;
  gap: 0.9rem;
}

.signal-board div {
  border-top: 1px solid var(--line);
  padding-top: 0.8rem;
}

.signal-board span {
  display: block;
  color: var(--ink-muted);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.signal-board strong {
  display: block;
  margin-top: 0.25rem;
  color: var(--sumi);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.25rem;
  font-weight: 500;
  line-height: 1.15;
}

.section-kanso {
  display: grid;
  gap: 1rem;
  align-items: stretch;
}

.section-stamp {
  display: grid;
  align-content: space-between;
  gap: 1.5rem;
}

.section-stamp span {
  display: grid;
  width: 4.5rem;
  height: 4.5rem;
  place-items: center;
  border-radius: 999px;
  background: var(--vermilion);
  color: #fff;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 2rem;
  font-weight: 800;
}

.section-stamp p {
  margin: 0;
  color: #f7f1e3;
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.55;
}

.market-board,
.story-ledger,
.principles-grid {
  display: grid;
  gap: 1rem;
  margin-top: clamp(1.5rem, 4vw, 3rem);
}

.market-board article,
.principles-grid article,
.story-ledger a {
  position: relative;
  border: 1px solid var(--sumi);
  background: rgba(255, 250, 240, 0.9);
  color: inherit;
  padding: clamp(1rem, 3vw, 1.5rem);
  text-decoration: none;
  box-shadow: 8px 8px 0 rgba(86, 102, 79, 0.1);
}

.market-board article > span {
  position: absolute;
  right: 1rem;
  top: 1rem;
  color: rgba(180, 35, 24, 0.18);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 4rem;
  line-height: 1;
}

.market-board h2,
.principles-grid h2,
.story-ledger strong {
  display: block;
  margin: 0.7rem 0 0;
  max-width: 34rem;
  color: var(--sumi);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.45rem, 4vw, 2.35rem);
  font-weight: 500;
  line-height: 1.08;
}

.market-board p:not(.kicker),
.principles-grid p:not(.kicker),
.story-ledger small {
  display: block;
  margin-top: 0.9rem;
  color: var(--sumi-soft);
  font-size: 0.98rem;
  line-height: 1.65;
}

.story-ledger {
  grid-template-columns: 1fr;
}

.story-ledger a {
  display: grid;
  gap: 0.45rem;
}

.story-ledger span {
  color: var(--vermilion);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.story-ledger a:hover {
  transform: translate(-2px, -2px);
  box-shadow: 12px 12px 0 rgba(180, 35, 24, 0.12);
}

.lead-file {
  background: var(--sumi) !important;
  color: #fff !important;
}

.lead-file strong,
.lead-file small {
  color: #fff !important;
}

.lead-file small {
  opacity: 0.82;
}

.site-footer {
  border-top: 1px solid var(--sumi);
  background: var(--paper);
  color: var(--ink-muted);
}

.site-footer > div {
  display: flex;
  max-width: 78rem;
  flex-direction: column;
  gap: 1rem;
  margin: 0 auto;
  padding: 1.5rem clamp(1rem, 4vw, 3rem);
}

.site-footer p {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 650;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.site-footer a,
.site-footer button {
  border: 0;
  background: transparent;
  color: var(--ink-muted);
  font-size: 0.9rem;
  padding: 0;
  text-decoration: none;
}

.site-footer a:hover,
.site-footer button:hover {
  color: var(--sumi);
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(21, 21, 21, 0.72);
  padding: 1rem;
}

.modal-backdrop.is-closed {
  display: none;
}

.modal-panel {
  width: min(100%, 34rem);
  border: 1px solid var(--sumi);
  background: var(--paper);
  box-shadow: 12px 12px 0 rgba(180, 35, 24, 0.18), 0 25px 80px rgba(0, 0, 0, 0.28);
  padding: 1.25rem;
}

.modal-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.modal-panel h2 {
  margin: 0;
  color: var(--sumi);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.7rem;
  font-weight: 500;
}

.modal-close {
  border: 0;
  background: transparent;
  color: var(--ink-muted);
  font-size: 2rem;
  line-height: 1;
}

.modal-body p {
  color: var(--sumi-soft);
  line-height: 1.7;
  margin: 1rem 0 0;
}

.cookie-consent {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  left: 1rem;
  z-index: 45;
  display: grid;
  gap: 1rem;
  border: 1px solid var(--sumi);
  background: rgba(255, 250, 240, 0.98);
  box-shadow: 8px 8px 0 rgba(27, 49, 95, 0.16), 0 24px 65px rgba(21, 21, 21, 0.18);
  padding: 1rem;
}

.cookie-consent__title {
  color: var(--sumi);
  font-size: 0.94rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  margin: 0 0 0.25rem;
  text-transform: uppercase;
}

.cookie-consent__text {
  color: var(--sumi-soft);
  font-size: 0.92rem;
  line-height: 1.55;
  margin: 0;
}

.cookie-consent__button {
  min-height: 2.8rem;
  border: 1px solid var(--sumi);
  background: var(--sumi);
  color: #fff;
  font-size: 0.86rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  padding: 0.72rem 1rem;
  text-transform: uppercase;
}

.cookie-consent__button:hover {
  background: var(--indigo);
}

@media (min-width: 640px) {
  .primary-nav {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .primary-nav a,
  .primary-nav a:nth-child(even) {
    border-right: 1px solid var(--line);
    border-bottom: 0;
  }

  .primary-nav a:last-child {
    border-right: 0;
  }

  .subscription-card {
    left: 50%;
    right: auto;
    width: min(30rem, calc(100% - 3rem));
    transform: translate(-50%, -50%);
  }

  .cookie-consent {
    left: auto;
    max-width: 34rem;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 880px) {
  .masthead {
    grid-template-columns: minmax(0, 1fr) 28rem;
    align-items: end;
  }

  .lead-composition {
    grid-template-columns: 4.5rem minmax(0, 1fr) 18rem;
  }

  .vertical-note {
    width: 100%;
    justify-content: center;
    padding: 1rem 0.55rem;
    writing-mode: vertical-rl;
  }

  .story-grid {
    grid-template-columns: 11rem minmax(0, 1fr) 14rem;
  }

  .index-strip,
  .signal-board {
    position: sticky;
    top: 1rem;
  }

  .section-kanso {
    grid-template-columns: 4.5rem minmax(0, 1fr) 18rem;
  }

  .market-board {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .story-ledger {
    grid-template-columns: 1.3fr 1fr;
  }

  .lead-file {
    grid-row: span 2;
    min-height: 24rem;
    align-content: end;
  }

  .principles-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-footer > div {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

@media (min-width: 1120px) {
  .story-panel {
    padding-left: 2.4rem;
    padding-right: 2.4rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
  }
}