/* ============================================================
   NATSUMI PRODUCTION — Official Site
   register: 物語(editorial) × 静謐 / palette: 暖黒・暖白・金
   ============================================================ */

:root {
  --bg: #FAF7F1;
  --surface: #F4EFE5;
  --surface-2: #EEE8DA;
  --text: #241F18;
  --text-dim: #6B6153;
  /* 金は2系統。白地では単一の値で「文字のAA」と「塗りの明るさ」を両立できない */
  --gold: #7F6127;        /* 文字・ラベル・細線用 (全ての面でAA: 4.7〜5.4:1) */
  --gold-soft: #6E5320;   /* 強調文字用・さらに濃い (6.7:1) */
  --gold-fill: #C9A25A;   /* 塗り用。上に --on-gold を載せる */
  --gold-fill-hover: #B8914A;
  --on-gold: #201A0C;     /* 金の塗りの上に置く文字色 (7.9:1) */
  --blue: #2F5C90;
  --pink: #A34A66;
  --line: rgba(127, 97, 39, 0.32);
  --line-faint: rgba(36, 31, 24, 0.13);
  --font-display: "Marcellus", "Shippori Mincho B1", serif;
  --font-mincho: "Shippori Mincho B1", "Marcellus", serif;
  --font-body: "Zen Kaku Gothic New", sans-serif;
  --header-h: 72px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html {
  color-scheme: light;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 17px;
  line-height: 1.8;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.pc { display: inline; }

/* ---------- buttons ---------- */
.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 16px;
  letter-spacing: 0.08em;
  padding: 13px 32px;
  border: 1px solid var(--gold);
  transition: background 0.25s ease-out, color 0.25s ease-out, opacity 0.25s ease-out;
}
.btn-gold { background: var(--gold-fill); color: var(--on-gold); border-color: var(--gold-fill); }
.btn-gold:hover { background: var(--gold-fill-hover); border-color: var(--gold-fill-hover); }
.btn-line { background: transparent; color: var(--gold-soft); }
.btn-line:hover { background: rgba(127, 97, 39, 0.10); }
.btn-large { padding: 16px 48px; font-size: 17px; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

/* ---------- header ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 0 28px;
  background: rgba(250, 247, 241, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line-faint);
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 38px; height: 38px;
  flex: none;
  border: 1px solid var(--gold);
  object-fit: cover;
  background: var(--surface);
}
.brand-mark-lg { width: 48px; height: 48px; }
.brand-text {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 0.14em;
  color: var(--text);
  white-space: nowrap;
}
.brand-text em { font-style: normal; color: var(--gold); margin-left: 8px; }

.global-nav { display: flex; gap: 26px; margin-left: auto; }
.global-nav a {
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.14em;
  color: var(--text);
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1.3;
  padding: 4px 2px;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease-out;
}
.global-nav a span {
  font-family: var(--font-body);
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 0.1em;
}
.global-nav a:hover { color: var(--gold-soft); }
.header-cta {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--on-gold);
  background: var(--gold-fill);
  padding: 10px 20px;
  white-space: nowrap;
  transition: background 0.25s ease-out;
}
.header-cta:hover { background: var(--gold-fill-hover); }

.nav-toggle { display: none; }

/* ---------- hero ---------- */
.hero {
  position: relative;
  padding: calc(var(--header-h) + 48px) 0 0;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 900px 520px at 78% 30%, rgba(201, 162, 90, 0.18), transparent 70%),
    radial-gradient(ellipse 700px 420px at 15% 85%, rgba(47, 92, 144, 0.06), transparent 70%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  max-width: 1120px;
  margin: 0 auto;
  padding: 24px 24px 64px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}
.hero-eyebrow {
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.32em;
  color: var(--gold);
  margin-bottom: 24px;
}
.hero-title {
  font-family: var(--font-mincho);
  font-weight: 600;
  font-size: clamp(40px, 5.5vw, 64px);
  line-height: 1.35;
  letter-spacing: 0.06em;
  margin-bottom: 28px;
}
.hero-lead {
  color: var(--text-dim);
  font-size: 17px;
  margin-bottom: 36px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 28px; }
.hero-note { font-size: 13px; color: var(--text-dim); letter-spacing: 0.04em; }

.hero-visual { position: relative; max-width: 430px; justify-self: end; }
.hero-visual img { border: 1px solid var(--line); }
.finder-tag {
  position: absolute;
  left: 14px; bottom: 12px;
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: rgba(242, 237, 227, 0.85);
  background: rgba(14, 13, 11, 0.55);
  padding: 4px 10px;
}

/* viewfinder corners — signature */
.finder { position: relative; }
.finder::before, .finder::after,
.finder > img + .finder-corners { content: none; }
.finder::before, .finder::after {
  content: "";
  position: absolute;
  width: 22px; height: 22px;
  pointer-events: none;
  z-index: 2;
  transition: transform 0.25s ease-out;
}
.finder::before {
  top: -6px; left: -6px;
  border-top: 2px solid var(--gold);
  border-left: 2px solid var(--gold);
}
.finder::after {
  bottom: -6px; right: -6px;
  border-bottom: 2px solid var(--gold);
  border-right: 2px solid var(--gold);
}
.finder:hover::before { transform: translate(-3px, -3px); }
.finder:hover::after { transform: translate(3px, 3px); }

.hero-ticker {
  position: relative;
  display: flex;
  align-items: center;
  gap: 18px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 14px 28px;
  background: rgba(238, 232, 218, 0.72);
  transition: background 0.25s ease-out;
}
.hero-ticker:hover { background: rgba(232, 224, 206, 0.95); }
.ticker-label {
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.24em;
  color: var(--gold);
  white-space: nowrap;
}
.ticker-text { font-size: 16px; color: var(--text); letter-spacing: 0.05em; }

/* ---------- sections ---------- */
.section { padding: 120px 0; }
.section-alt { background: var(--surface); }

.section-head { margin-bottom: 56px; }
.section-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(34px, 4vw, 46px);
  letter-spacing: 0.16em;
  line-height: 1.2;
  display: flex;
  align-items: baseline;
  gap: 20px;
}
.section-title span {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--gold);
  letter-spacing: 0.2em;
}
.section-title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
  align-self: center;
}

/* ---------- news ---------- */
.news-list li {
  display: grid;
  grid-template-columns: 122px 104px 1fr;
  gap: 20px;
  align-items: baseline;
  padding: 22px 8px;
  border-bottom: 1px solid var(--line-faint);
}
.news-list time {
  font-family: var(--font-display);
  font-size: 15px;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}
.news-cat {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-align: center;
  padding: 3px 0;
  border: 1px solid currentColor;
}
.cat-works { color: var(--gold-soft); }
.cat-shop { color: var(--blue); }
.cat-patreon { color: var(--pink); }
.cat-info { color: var(--text-dim); }
.news-list p { font-size: 17px; }

/* ---------- about ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.about-catch {
  font-family: var(--font-mincho);
  font-weight: 600;
  font-size: clamp(24px, 2.8vw, 32px);
  line-height: 1.6;
  letter-spacing: 0.05em;
  margin-bottom: 28px;
}
.about-copy p:not(.about-catch) {
  color: var(--text-dim);
  font-size: 17px;
  margin-bottom: 20px;
}
.about-pillars { display: flex; flex-direction: column; gap: 0; }
.about-pillars li {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 8px 20px;
  padding: 26px 4px;
  border-top: 1px solid var(--line);
}
.about-pillars li:last-child { border-bottom: 1px solid var(--line); }
.pillar-num {
  grid-row: span 2;
  font-family: var(--font-display);
  font-size: 32px;
  color: var(--gold);
  line-height: 1;
  padding-top: 4px;
}
.about-pillars h3 {
  font-family: var(--font-mincho);
  font-weight: 600;
  font-size: 21px;
  letter-spacing: 0.06em;
}
.about-pillars p { color: var(--text-dim); font-size: 16px; }

/* ---------- talent ---------- */
.talent-feature {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 64px;
  align-items: center;
  padding: 40px 0;
}
.talent-feature + .talent-feature { border-top: 1px solid var(--line-faint); margin-top: 24px; padding-top: 72px; }
.talent-photo img { border: 1px solid var(--line); }
.talent-tags {
  font-size: 15px;
  color: var(--gold);
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}
.talent-name {
  font-family: var(--font-mincho);
  font-weight: 700;
  font-size: clamp(36px, 4.4vw, 52px);
  letter-spacing: 0.1em;
  line-height: 1.2;
  margin-bottom: 8px;
  position: relative;
  padding-left: 22px;
}
.talent-name::before {
  content: "";
  position: absolute;
  left: 0; top: 12%;
  bottom: 12%;
  width: 4px;
  background: var(--member-color, var(--gold));
}
.talent-name-en {
  font-family: var(--font-display);
  font-size: 16px;
  letter-spacing: 0.3em;
  color: var(--text-dim);
  margin-left: 18px;
}
.talent-role { font-size: 16px; color: var(--gold-soft); letter-spacing: 0.08em; margin-bottom: 20px; }
.talent-bio { color: var(--text-dim); font-size: 17px; margin-bottom: 28px; }
.talent-data { display: grid; gap: 10px; }
.talent-data div {
  display: grid;
  grid-template-columns: 138px 1fr;
  gap: 16px;
  font-size: 16px;
  border-bottom: 1px solid var(--line-faint);
  padding-bottom: 10px;
}
.talent-data dt { color: var(--gold); letter-spacing: 0.1em; font-weight: 500; }
.talent-data dd { color: var(--text); }
.color-chip {
  display: inline-block;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--chip);
  margin-right: 8px;
  vertical-align: baseline;
}
.badge-new, .badge-soon {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--on-gold);
  background: var(--gold-fill);
  padding: 3px 10px;
  margin-left: 10px;
  vertical-align: middle;
}

/* ---------- works ---------- */
.work-feature {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 56px;
  align-items: center;
  margin-bottom: 88px;
}
.work-cover img { border: 1px solid var(--line); }
.work-status {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  padding: 4px 12px;
  border: 1px solid var(--gold);
  color: var(--gold-soft);
  margin-bottom: 18px;
}
.work-title {
  font-family: var(--font-mincho);
  font-weight: 700;
  font-size: clamp(30px, 3.6vw, 42px);
  letter-spacing: 0.08em;
  line-height: 1.4;
  margin-bottom: 10px;
}
.work-copy {
  font-family: var(--font-mincho);
  font-size: 19px;
  color: var(--gold-soft);
  letter-spacing: 0.12em;
  margin-bottom: 20px;
}
.work-desc { color: var(--text-dim); font-size: 17px; margin-bottom: 28px; }
.work-actions { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.work-note { font-size: 13px; color: var(--text-dim); }

.works-sub-title {
  font-family: var(--font-mincho);
  font-weight: 600;
  font-size: 26px;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
  display: flex;
  align-items: baseline;
  gap: 16px;
}
.works-sub-title span { font-family: var(--font-body); font-size: 14px; font-weight: 400; color: var(--text-dim); }
.works-free-note {
  font-size: 15px;
  color: var(--gold-soft);
  letter-spacing: 0.04em;
  margin-bottom: 28px;
}
.monthly-list { border-top: 1px solid var(--line); margin-bottom: 88px; }
.monthly-item {
  display: grid;
  grid-template-columns: 106px 1fr 170px;
  gap: 28px;
  align-items: center;
  padding: 28px 8px;
  border-bottom: 1px solid var(--line-faint);
}
.monthly-no {
  font-family: var(--font-mincho);
  font-weight: 600;
  font-size: 20px;
  color: var(--gold);
  letter-spacing: 0.1em;
}
.monthly-body h4 {
  font-family: var(--font-mincho);
  font-weight: 600;
  font-size: 23px;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}
.monthly-body p { color: var(--text-dim); font-size: 16px; }
.monthly-status {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-align: center;
  padding: 6px 0;
  border: 1px solid currentColor;
}
.status-next { color: var(--gold-soft); }
.status-wip { color: var(--blue); }
.status-plan { color: var(--text-dim); }

.work-anime { display: flex; justify-content: center; }
.anime-frame {
  max-width: 640px;
  width: 100%;
  text-align: center;
  padding: 56px 40px;
  background: var(--surface-2);
  border: 1px solid var(--line);
}
.anime-label {
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.3em;
  color: var(--gold);
  margin-bottom: 16px;
}
.anime-title {
  font-family: var(--font-mincho);
  font-weight: 600;
  font-size: clamp(24px, 2.8vw, 30px);
  letter-spacing: 0.08em;
  margin-bottom: 14px;
}
.anime-desc { color: var(--text-dim); font-size: 16px; margin-bottom: 22px; }
.anime-frame .badge-soon { margin-left: 0; }

/* ---------- gallery ---------- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}
.gallery-item { position: relative; overflow: visible; }
.gallery-item img {
  border: 1px solid var(--line);
  aspect-ratio: 3 / 5;
  object-fit: cover;
  filter: saturate(0.96);
  transition: filter 0.3s ease-out;
}
.gallery-item:hover img { filter: saturate(1.05); }
.gallery-item figcaption {
  margin-top: 12px;
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--text-dim);
  text-align: center;
}
.gallery-more {
  margin-top: 48px;
  text-align: center;
  color: var(--text-dim);
  font-size: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

/* ---------- staff ---------- */
.staff-lead { color: var(--text-dim); font-size: 17px; margin-bottom: 48px; max-width: 640px; }
.staff-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(212px, 1fr));
  gap: 28px;
}
.staff-card { background: var(--surface-2); border: 1px solid var(--line-faint); }
.staff-card img { aspect-ratio: 1; object-fit: cover; }
.staff-body { padding: 18px 18px 22px; }
.staff-dept {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--gold);
  margin-bottom: 6px;
}
.staff-body h3 {
  font-family: var(--font-mincho);
  font-weight: 600;
  font-size: 22px;
  letter-spacing: 0.08em;
  margin-bottom: 2px;
}
.staff-body h3 span {
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--text-dim);
  margin-left: 8px;
}
.staff-role { font-size: 14px; color: var(--gold-soft); margin-bottom: 10px; }
.staff-note { font-size: 14px; color: var(--text-dim); line-height: 1.7; }

/* ---------- fanclub ---------- */
.fanclub-lead { color: var(--text-dim); font-size: 17px; margin-bottom: 40px; max-width: 620px; }
.fanclub-cta { text-align: center; margin-bottom: 88px; }
.fanclub-note { margin-top: 18px; font-size: 13px; color: var(--text-dim); }

.newsletter { display: flex; justify-content: center; }
.newsletter-inner {
  width: 100%;
  max-width: 720px;
  border: 1px solid var(--line);
  background: var(--surface);
  padding: 48px 48px 44px;
  text-align: center;
}
.newsletter-label {
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.3em;
  color: var(--gold);
  margin-bottom: 12px;
}
.newsletter-title {
  font-family: var(--font-mincho);
  font-weight: 600;
  font-size: 30px;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}
.newsletter-desc { color: var(--text-dim); font-size: 16px; margin-bottom: 28px; }
.newsletter-form { display: flex; gap: 12px; max-width: 520px; margin: 0 auto; }
.newsletter-form input {
  flex: 1;
  min-width: 0;
  background: var(--bg);
  border: 1px solid var(--line-faint);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  padding: 12px 16px;
}
.newsletter-form input:disabled { opacity: 0.6; }
.newsletter-form .btn { white-space: nowrap; }
.newsletter-form .btn:disabled { cursor: default; }

/* ---------- footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  background: #F0EADC;
  padding: 72px 0 40px;
}
.footer-inner { margin-bottom: 56px; }
.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px 40px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 14px;
}
.footer-logo .brand-text { font-size: 24px; }
.footer-tag { font-size: 15px; color: var(--text-dim); }
.footer-nav { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 28px; }
.footer-nav a {
  font-size: 15px;
  color: var(--text-dim);
  letter-spacing: 0.06em;
  transition: color 0.2s ease-out;
}
.footer-nav a:hover { color: var(--gold-soft); }
.footer-legal {
  border-top: 1px solid var(--line-faint);
  padding-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-legal p { font-size: 13px; color: var(--text-dim); }

/* ---------- reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .finder:hover::before, .finder:hover::after { transform: none; }
}

/* ============ responsive ============ */
@media (max-width: 1024px) {
  .global-nav { gap: 18px; }
  .global-nav a span { display: none; }
}

@media (max-width: 860px) {
  .pc { display: none; }
  :root { --header-h: 60px; }

  .site-header { padding: 0 18px; gap: 16px; }
  .header-cta { display: none; }
  .global-nav {
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    flex-direction: column;
    gap: 0;
    background: rgba(250, 247, 241, 0.98);
    border-bottom: 1px solid var(--line);
    padding: 12px 0 20px;
    display: none;
  }
  .global-nav.is-open { display: flex; }
  .global-nav a {
    flex-direction: row;
    gap: 12px;
    align-items: baseline;
    padding: 14px 28px;
    font-size: 16px;
  }
  .global-nav a span { display: inline; font-size: 12px; }

  .nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    margin-left: auto;
    width: 44px; height: 44px;
    background: none;
    border: none;
    cursor: pointer;
    align-items: center;
  }
  .nav-toggle span {
    display: block;
    width: 22px; height: 2px;
    background: var(--gold);
    transition: transform 0.25s ease-out, opacity 0.25s ease-out;
  }
  .nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.is-open span:nth-child(2) { opacity: 0; }
  .nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .hero-inner { grid-template-columns: 1fr; gap: 40px; padding-bottom: 48px; }
  .hero-visual { justify-self: center; max-width: 340px; }
  .hero-ticker { padding: 12px 18px; gap: 12px; }
  .ticker-text { font-size: 14px; }

  .section { padding: 80px 0; }
  .section-head { margin-bottom: 40px; }

  .news-list li { grid-template-columns: 104px 88px 1fr; gap: 10px; padding: 18px 0; }
  .news-list p { grid-column: 1 / -1; }

  .about-grid { grid-template-columns: 1fr; gap: 40px; }

  .talent-feature { grid-template-columns: 1fr; gap: 32px; }
  .talent-photo { max-width: 340px; margin: 0 auto; }
  .talent-data div { grid-template-columns: 122px 1fr; }

  .work-feature { grid-template-columns: 1fr; gap: 32px; margin-bottom: 64px; }
  .monthly-item { grid-template-columns: 1fr; gap: 10px; }
  .monthly-status { justify-self: start; padding: 4px 14px; }
  .monthly-list { margin-bottom: 64px; }

  .gallery-grid { grid-template-columns: repeat(2, 1fr); gap: 18px; }

  .newsletter-inner { padding: 36px 22px; }
  .newsletter-form { flex-direction: column; }

  /* フッターのロゴは375px幅で横にはみ出すため縮める */
  .brand-mark-lg { width: 40px; height: 40px; }
  .footer-logo { gap: 12px; }
  .footer-logo .brand-text { font-size: 18px; letter-spacing: 0.1em; }
}