/* ============================================================
   Design tokens
   Color:  Paper #F1F4F6 / Ink #16212B / Blueprint #2C5F82 /
           Copper #B9713D / Muted #6B7580 / Line rgba(22,33,43,.10)
   Type:   Display  Zen Kaku Gothic New (headers, title block)
           Body     Noto Serif JP (long-form text)
           Utility  JetBrains Mono (labels, dates, tags)
   Layout: CAD drawing title block + spec-sheet clauses
   ============================================================ */

:root {
  --paper: #F1F4F6;
  --paper-line: #E1E7EA;
  --ink: #16212B;
  --blueprint: #2C5F82;
  --copper: #B9713D;
  --muted: #6B7580;
  --grid-line: rgba(22, 33, 43, 0.09);

  --font-display: 'Zen Kaku Gothic New', sans-serif;
  --font-body: 'Noto Serif JP', serif;
  --font-mono: 'JetBrains Mono', monospace;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background:
    linear-gradient(var(--grid-line) 1px, transparent 1px) 0 0 / 100% 32px,
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px) 0 0 / 32px 100%,
    var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.75;
  padding: 40px 16px 80px;
}

.sheet {
  max-width: 760px;
  margin: 0 auto;
  background: #FCFDFD;
  border: 1.5px solid var(--ink);
  box-shadow: 6px 6px 0 var(--grid-line);
}

/* ---------- Title block (CAD drawing header) ---------- */

.titleblock { border-bottom: 1.5px solid var(--ink); }

.tb-row { display: flex; border-bottom: 1px solid var(--ink); }
.tb-row:last-child { border-bottom: none; }

.tb-cell {
  flex: 1;
  padding: 8px 14px;
  border-right: 1px solid var(--ink);
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.tb-cell:last-child { border-right: none; }

.tb-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--muted);
  text-transform: uppercase;
}
.tb-value {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink);
}
.tb-value a { color: var(--blueprint); }

.tb-name {
  padding: 20px 20px 16px;
  flex-direction: column;
  align-items: flex-start;
}
.tb-name h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 6vw, 48px);
  margin: 0;
  letter-spacing: 0.02em;
}
.role-en {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  margin: 4px 0 0;
  letter-spacing: 0.06em;
}
.role {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--blueprint);
  margin: 4px 0 0;
}
.arrow { color: var(--copper); font-weight: 700; }

.tb-meta .tb-cell { flex-direction: row; align-items: baseline; gap: 8px; }
.tb-meta .tb-label { min-width: 44px; }

/* ---------- Section blocks ---------- */

.block {
  padding: 28px 22px;
  border-bottom: 1px dashed var(--paper-line);
}
.block:last-child { border-bottom: none; }

.block h2 {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin: 0 0 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
}

.tag {
  font-family: var(--font-mono);
  font-size: 11px;
  color: #fff;
  background: var(--blueprint);
  padding: 2px 8px;
  border-radius: 2px;
}

.summary { margin: 0; font-size: 15px; color: #2B3742; }

/* ---------- Spec table (certifications) ---------- */

.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}
.spec-table th, .spec-table td {
  text-align: left;
  padding: 9px 10px;
  border: 1px solid var(--paper-line);
}
.spec-table th {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  color: var(--muted);
  text-transform: uppercase;
  background: var(--paper);
  font-weight: 500;
}
.spec-table td:nth-child(2) { font-family: var(--font-mono); color: var(--blueprint); white-space: nowrap; }

/* ---------- Job entries ---------- */

.job { margin-bottom: 22px; }
.job:last-child { margin-bottom: 0; }

.job-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}
.job-head h3 {
  font-family: var(--font-display);
  font-size: 16px;
  margin: 0;
}
.job-period {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--copper);
  white-space: nowrap;
}
.job-title {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--blueprint);
  margin: 3px 0 8px;
}
.job-desc {
  margin: 0;
  padding-left: 18px;
  font-size: 14px;
  color: #2B3742;
}
.job-desc li { margin-bottom: 4px; }

/* ---------- Skills ---------- */

.skill-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px 24px;
}
.skill-group p { margin: 4px 0 0; font-size: 14px; color: #2B3742; }
.skill-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--paper-line);
  display: inline-block;
  padding-bottom: 3px;
}

/* ---------- Footer / visitor counter ---------- */

.block-footer { background: var(--paper); }
.visitor-counter {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--muted);
  margin: 14px 0 0;
}
#visitor-count { color: var(--copper); font-weight: 700; }

a { text-decoration: none; }
a:hover { text-decoration: underline; }

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

@media (max-width: 560px) {
  .tb-row.tb-top, .tb-row.tb-meta { flex-direction: column; }
  .tb-cell { border-right: none; border-bottom: 1px solid var(--grid-line); }
  .tb-cell:last-child { border-bottom: none; }
  .skill-grid { grid-template-columns: 1fr; }
  body { padding: 20px 10px 60px; }
}

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