/* ==========================================================================
   Design tokens
   Ink   : #12151C  背景の墨色
   Paper : #EDEAE2  本文・明るい文字
   Brass : #C89B3C  署名アクセント(切り出しマーク・見出し下線)
   Moss  : #4F7268  リンク・補助アクセント
   Slate : #8B90A0  補助テキスト
   Line  : #2A2F3A  罫線
   ========================================================================== */

:root {
  --ink: #12151c;
  --ink-panel: #171b24;
  --paper: #edeae2;
  --brass: #c89b3c;
  --moss: #4f7268;
  --slate: #8b90a0;
  --line: #2a2f3a;

  --font-display: "Zen Old Mincho", serif;
  --font-body: "Zen Kaku Gothic New", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;

  --container: 960px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  line-height: 1.85;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--moss);
  text-decoration-color: rgba(79, 114, 104, 0.4);
  text-underline-offset: 3px;
}

a:hover,
a:focus-visible {
  color: var(--brass);
}

:focus-visible {
  outline: 2px solid var(--brass);
  outline-offset: 3px;
}

.wrap {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Nav ---------- */

.site-nav {
  border-bottom: 1px solid var(--line);
  padding: 20px 0;
}

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

.site-nav .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  color: var(--paper);
  text-decoration: none;
}

.brand-logo {
  height: 28px;
  width: auto;
  display: block;
}

.site-nav ul {
  list-style: none;
  display: flex;
  gap: 28px;
  margin: 0;
  padding: 0;
  font-size: 0.9rem;
}

.site-nav a {
  color: var(--slate);
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--brass);
}

/* ---------- Crop-mark signature element ---------- */

.crop {
  position: relative;
  padding: 48px 40px;
}

.crop::before,
.crop::after,
.crop > .crop-br,
.crop > .crop-bl {
  content: "";
  position: absolute;
  width: 22px;
  height: 22px;
  border-color: var(--brass);
  border-style: solid;
  opacity: 0.85;
}

.crop::before {
  top: 0;
  left: 0;
  border-width: 2px 0 0 2px;
}

.crop::after {
  top: 0;
  right: 0;
  border-width: 2px 2px 0 0;
}

.crop-corners-bottom {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.crop-corners-bottom::before,
.crop-corners-bottom::after {
  content: "";
  position: absolute;
  width: 22px;
  height: 22px;
  border-color: var(--brass);
  border-style: solid;
  opacity: 0.85;
}

.crop-corners-bottom::before {
  bottom: 0;
  left: 0;
  border-width: 0 0 2px 2px;
}

.crop-corners-bottom::after {
  bottom: 0;
  right: 0;
  border-width: 0 2px 2px 0;
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  padding: 100px 0 90px;
  background: var(--ink);
  overflow: hidden;
}

.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.hero .wrap {
  position: relative;
  z-index: 1;
}

.hero .crop {
  margin: 0;
  text-align: center;
}

.hero-eyebrow {
  margin: 0 0 20px;
}

.hero h1 {
  font-family: var(--font-body);
  font-size: clamp(1.9rem, 4.5vw, 3.1rem);
  line-height: 1.5;
  margin: 0 0 28px;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.hero h1 .accent {
  color: var(--brass);
}

.hero p {
  color: var(--slate);
  font-size: 1.05rem;
  max-width: 610px;
  margin: 0 auto;
}

/* ---------- Sections ---------- */

section {
  padding: 80px 0;
  border-top: 1px solid var(--line);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--brass);
  text-transform: uppercase;
  margin: 0 0 14px;
}

h2 {
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 500;
  margin: 0 0 40px;
  letter-spacing: 0.01em;
}

/* ---------- Service cards ---------- */

.services-grid {
  display: grid;
  gap: 28px;
}

.service-card {
  background: var(--ink-panel);
  border: 1px solid var(--line);
}

.service-card .crop {
  padding: 36px;
}

.service-card h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 500;
  margin: 0 0 14px;
}

.service-card p {
  color: var(--slate);
  margin: 0 0 20px;
}

.service-card .cta {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--brass);
  text-decoration: none;
  border-bottom: 1px solid var(--brass);
  padding-bottom: 2px;
}

/* ---------- Pricing table ---------- */

.plans {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 32px;
}

.plan {
  border: 1px solid var(--line);
  padding: 28px 22px;
  text-align: center;
}

.plan.featured {
  border-color: var(--brass);
}

.plan .plan-name {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--slate);
  text-transform: uppercase;
  margin-bottom: 14px;
}

.plan .plan-price {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  color: var(--paper);
}

.plan .plan-price::before {
  content: "¥";
  font-size: 1rem;
  color: var(--slate);
  margin-right: 2px;
}

.plan .plan-note {
  margin-top: 14px;
  font-size: 0.85rem;
  color: var(--slate);
}

/* ---------- Coming soon badge ---------- */

.coming-soon-badge {
  display: inline-block;
  margin-top: 40px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  color: var(--slate);
  border: 1px solid var(--line);
  padding: 10px 18px;
}

.service-card .badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--slate);
  border: 1px solid var(--line);
  padding: 3px 8px;
  margin-left: 10px;
  vertical-align: middle;
}

/* ---------- Company table ---------- */

.company-table {
  width: 100%;
  border-collapse: collapse;
}

.company-table th,
.company-table td {
  text-align: left;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.company-table th {
  width: 160px;
  font-weight: 500;
  color: var(--slate);
  font-size: 0.9rem;
}

/* ---------- Links / contact ---------- */

.link-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
}

.link-card {
  border: 1px solid var(--line);
  padding: 22px;
  text-decoration: none;
  color: var(--paper);
  display: block;
}

.link-card:hover,
.link-card:focus-visible {
  border-color: var(--brass);
  color: var(--paper);
}

.link-card .link-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--brass);
  text-transform: uppercase;
  display: block;
  margin-bottom: 8px;
}

/* ---------- Contact CTA ---------- */

.contact-cta {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--ink);
  background: var(--brass);
  text-decoration: none;
  padding: 16px 32px;
  margin-top: 8px;
}

.contact-cta:hover,
.contact-cta:focus-visible {
  color: var(--ink);
  background: var(--paper);
}

.contact-note {
  color: var(--slate);
  margin-top: 20px;
  font-size: 0.9rem;
}

/* ---------- Footer ---------- */

footer {
  border-top: 1px solid var(--line);
  padding: 40px 0;
  color: var(--slate);
  font-size: 0.82rem;
}

footer .wrap {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- Responsive ---------- */

@media (max-width: 720px) {
  .plans {
    grid-template-columns: 1fr;
  }
  .site-nav ul {
    gap: 18px;
    font-size: 0.85rem;
  }
  .crop {
    padding: 32px 20px;
  }
  .company-table th {
    width: 110px;
  }
}

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