/* C-FULLCITY — 依存なし。Webフォントも外部リクエストも読み込まない。 */

:root {
  --bg: #faf9f7;
  --bg-soft: #f2f0ec;
  --ink: #1c1b19;
  --ink-mid: #46443f;
  --muted: #6e6b66;
  --line: #e3e0da;
  --accent: #98603a;

  --sans: system-ui, -apple-system, "Segoe UI", "Hiragino Kaku Gothic ProN",
    "Yu Gothic UI", "Noto Sans JP", Meiryo, sans-serif;
  --serif: "Hiragino Mincho ProN", "Yu Mincho", YuMincho, "Noto Serif JP",
    "MS PMincho", Georgia, serif;

  --measure: 42rem;
  --gap-section: clamp(5rem, 11vw, 8.5rem);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #131211;
    --bg-soft: #1a1917;
    --ink: #ecebe7;
    --ink-mid: #c2beb7;
    --muted: #8d8981;
    --line: #2b2926;
    --accent: #c78d5f;
  }
}

*, *::before, *::after { box-sizing: border-box; }

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.95;
  letter-spacing: 0.02em;
  font-feature-settings: "palt" 1;
  -webkit-font-smoothing: antialiased;
}

@media (min-width: 48em) {
  body { font-size: 1.0625rem; }
}

p { margin: 0 0 1.6em; }
p:last-child { margin-bottom: 0; }

a { color: inherit; }

.wrap {
  width: 100%;
  max-width: var(--measure);
  margin-inline: auto;
  padding-inline: clamp(1.4rem, 6vw, 2.5rem);
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--bg);
  padding: 0.6rem 1rem;
  z-index: 10;
}
.skip-link:focus { left: 0; }

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

/* ---------- header ---------- */

.site-head {
  padding-block: 1.6rem;
}

.head-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.6rem 1.5rem;
}

.head-mark {
  font-size: 0.8125rem;
  letter-spacing: 0.22em;
  text-decoration: none;
  color: var(--ink);
}

.head-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 1.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.head-nav a {
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--muted);
  text-decoration: none;
  padding-block: 0.2rem;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.head-nav a:hover {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

/* ---------- hero ---------- */

.hero {
  padding-block: clamp(5rem, 18vw, 12rem) clamp(4.5rem, 12vw, 9rem);
}

.wordmark {
  margin: 0;
  font-size: clamp(2.1rem, 9.2vw, 4.25rem);
  font-weight: 400;
  letter-spacing: 0.12em;
  line-height: 1.15;
}

.tagline {
  margin: clamp(1.6rem, 4vw, 2.4rem) 0 0;
  font-size: clamp(0.875rem, 2.6vw, 1.0625rem);
  font-weight: 400;
  letter-spacing: 0.07em;
  line-height: 1.6;
  color: var(--ink-mid);
}

.hero-lead {
  margin: clamp(2.8rem, 8vw, 4.5rem) 0 0;
  font-family: var(--serif);
  font-size: clamp(1.125rem, 4.4vw, 1.5rem);
  line-height: 1.9;
  letter-spacing: 0.06em;
}

.hero-sub {
  margin: 1.6rem 0 0;
  color: var(--ink-mid);
  font-size: 0.9375rem;
  line-height: 2.1;
}

@media (min-width: 48em) {
  .hero-sub { font-size: 1rem; }
}

/* ---------- sections ---------- */

.section {
  padding-block: var(--gap-section);
  border-top: 1px solid var(--line);
}

.section-title {
  margin: 0;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--muted);
}

.section-lead {
  margin: 1.8rem 0 2.8rem;
  font-family: var(--serif);
  font-size: clamp(1.0625rem, 3.6vw, 1.3125rem);
  line-height: 1.95;
  letter-spacing: 0.05em;
}

.section p { color: var(--ink-mid); }
.section .section-lead { color: var(--ink); }

.note,
.status {
  font-size: 0.875rem;
  line-height: 2;
  color: var(--muted);
}

.note {
  margin-top: 2.6rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--line);
}

/* リストの下端罫線がそのまま区切りになるので、二重に引かない */
.role-list + .note {
  margin-top: 2rem;
  padding-top: 0;
  border-top: 0;
}

.status { margin-top: -0.6em; }

/* ---------- about list ---------- */

.role-list {
  margin: 2.6rem 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.role-list li {
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.9375rem;
  letter-spacing: 0.05em;
  color: var(--ink);
}

/* ---------- projects ---------- */

.project-list {
  display: flex;
  flex-direction: column;
  gap: clamp(3.5rem, 9vw, 5.5rem);
}

.project-index {
  margin: 0 0 0.9rem;
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  color: var(--accent);
}

.project-title {
  margin: 0 0 0.5rem;
  font-family: var(--serif);
  font-size: clamp(1.25rem, 4.6vw, 1.625rem);
  font-weight: 500;
  line-height: 1.7;
  letter-spacing: 0.045em;
}

.project-meta {
  margin: 0 0 1.8rem;
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.project-link {
  margin-top: 1.9rem;
  font-size: 0.9375rem;
  letter-spacing: 0.04em;
}

.project-link a {
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.25em;
  transition: border-color 0.2s;
}

.project-link a:hover { border-bottom-color: var(--accent); }

.ext {
  margin-left: 0.55em;
  color: var(--accent);
  vertical-align: 0.02em;
}

/* ---------- footer ---------- */

.site-foot {
  padding-block: clamp(4rem, 10vw, 6rem) clamp(3rem, 8vw, 4.5rem);
  border-top: 1px solid var(--line);
  background: var(--bg-soft);
}

.foot-mark {
  margin: 0;
  font-size: 0.8125rem;
  letter-spacing: 0.22em;
}

.foot-tagline {
  margin: 0.7rem 0 0;
  font-size: 0.8125rem;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.foot-copy {
  margin: 2.6rem 0 0;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--muted);
}

/* ---------- 404 ---------- */

.error-page {
  padding-block: clamp(6rem, 20vw, 12rem);
}

.error-code {
  margin: 0 0 1.6rem;
  font-size: 0.75rem;
  letter-spacing: 0.24em;
  color: var(--muted);
}

.error-title {
  margin: 0 0 2.4rem;
  font-family: var(--serif);
  font-size: clamp(1.25rem, 4.6vw, 1.625rem);
  font-weight: 500;
  line-height: 1.8;
  letter-spacing: 0.05em;
}

.back-link {
  display: inline-block;
  font-size: 0.9375rem;
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.25em;
  transition: border-color 0.2s;
}

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