/* =============================================================================
 * modern.css — the second design ("Modern"), active when
 * <html data-design="modern">. Loaded after style.css; every rule is scoped so
 * the default Classic design is untouched. Editorial look: ivory ground, serif
 * display type, hairline rules, terracotta accent. Fonts load via prefs.js.
 * ========================================================================== */

:root[data-design="modern"] {
  --bg: #f7f4ee;
  --surface: #fffdf9;
  --surface-2: #efeae1;
  --text: #1d1b18;
  --muted: #6b665e;
  --border: rgba(29, 27, 24, .13);
  --accent: #b4532a;
  --accent-strong: #8e3d1c;
  --accent-soft: #f4e4d8;
  --shadow: 0 1px 1px rgba(29, 27, 24, .04), 0 18px 40px -18px rgba(29, 27, 24, .28);
  --radius: 20px;
  --maxw: 1040px;
  --font: "Inter", "Noto Sans JP", system-ui, -apple-system, "Segoe UI", "Hiragino Kaku Gothic ProN", "Yu Gothic UI", Meiryo, sans-serif;
  --serif: "Fraunces", "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
}
:root[data-design="modern"][data-theme="dark"] {
  --bg: #131210;
  --surface: #1b1a17;
  --surface-2: #24221e;
  --text: #ece7de;
  --muted: #a39d92;
  --border: rgba(236, 231, 222, .14);
  --accent: #e0895f;
  --accent-strong: #f0a984;
  --accent-soft: #2d221c;
  --shadow: 0 1px 1px rgba(0, 0, 0, .3), 0 20px 44px -18px rgba(0, 0, 0, .7);
}

/* ---- base ---------------------------------------------------------------- */
:root[data-design="modern"] body { font-size: 16.5px; line-height: 1.78; letter-spacing: -.002em; }
:root[data-design="modern"] h1,
:root[data-design="modern"] h2,
:root[data-design="modern"] h3 { font-family: var(--serif); font-weight: 400; letter-spacing: -.012em; }
:root[data-design="modern"] a:hover { text-underline-offset: 3px; }
:root[data-design="modern"] .page { padding-top: 64px; padding-bottom: 88px; }
:root[data-design="modern"] .page h1,
:root[data-design="modern"] .profile-main h1 { font-size: clamp(2.3rem, 4.4vw, 3.4rem); line-height: 1.05; letter-spacing: -.025em; margin-bottom: .45em; }
:root[data-design="modern"] .lead { font-size: 1.15rem; line-height: 1.7; max-width: 38em; }

/* ---- header -------------------------------------------------------------- */
:root[data-design="modern"] #site-header { background: color-mix(in srgb, var(--bg) 84%, transparent); border-bottom-color: var(--border); }
:root[data-design="modern"] .header__inner { height: 72px; }
:root[data-design="modern"] .brand__name { font-family: var(--serif); font-size: 1.18rem; font-weight: 500; letter-spacing: -.01em; }
:root[data-design="modern"] .brand__role { margin-top: 2px; font-size: .66rem; letter-spacing: .1em; text-transform: uppercase; }
:root[data-design="modern"] .nav > a { position: relative; padding: 8px 10px; border-radius: 0; background: none; font-size: .9rem; color: var(--muted); }
:root[data-design="modern"] .nav > a:hover { color: var(--text); background: none; text-decoration: none; }
:root[data-design="modern"] .nav > a.active { color: var(--text); background: none; }
:root[data-design="modern"] .nav > a.active::after {
  content: ""; position: absolute; left: 10px; right: 10px; bottom: 1px; height: 1.5px; background: var(--accent);
}
:root[data-design="modern"] .nav > a.nav-lab {
  margin-left: 10px; padding: 7px 15px; border-radius: 999px; color: var(--bg); background: var(--text); font-weight: 500;
}
:root[data-design="modern"] .nav > a.nav-lab:hover { color: #fff; background: var(--accent); }
:root[data-design="modern"] .lang-toggle,
:root[data-design="modern"] .theme-toggle,
:root[data-design="modern"] .design-toggle,
:root[data-design="modern"] .nav-toggle { background: transparent; border-color: var(--border); border-radius: 999px; font-weight: 500; }
:root[data-design="modern"] .lang-toggle:hover,
:root[data-design="modern"] .theme-toggle:hover,
:root[data-design="modern"] .design-toggle:hover { border-color: var(--text); color: var(--text); }

/* ---- hero ---------------------------------------------------------------- */
:root[data-design="modern"] .hero { background: none; border-bottom-color: var(--border); padding: 80px 0 72px; }
:root[data-design="modern"] .hero__inner { gap: 64px; }
:root[data-design="modern"] .hero h1 { font-size: clamp(2.8rem, 5.6vw, 4.6rem); line-height: 1; letter-spacing: -.03em; margin-bottom: .35em; }
:root[data-design="modern"] .hero__sub { font-size: .78rem; font-weight: 500; letter-spacing: .09em; text-transform: uppercase; line-height: 1.7; margin-bottom: 1.6em; }
:root[data-design="modern"] .hero__intro { font-size: 1.14rem; line-height: 1.75; max-width: 34em; margin-bottom: 1.7em; }
:root[data-design="modern"] .avatar { border-radius: 26px; box-shadow: var(--shadow); background: var(--surface-2); }
:root[data-design="modern"] .avatar--hero { width: 320px; }

/* ---- pills, tags, lab callout ------------------------------------------- */
:root[data-design="modern"] .pill { padding: 8px 17px; background: transparent; border-color: var(--border); font-weight: 500; }
:root[data-design="modern"] .pill:hover { border-color: var(--text); color: var(--text); }
:root[data-design="modern"] .pill--accent { background: var(--text); border-color: var(--text); color: var(--bg); }
:root[data-design="modern"] .pill--accent:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
:root[data-design="modern"] .tag { padding: 6px 15px; background: transparent; border-color: var(--border); font-size: .88rem; }
:root[data-design="modern"] .tag--soft { color: var(--muted); }
:root[data-design="modern"] .lab-callout {
  max-width: 34rem; margin-top: 22px; padding: 18px 22px; border-radius: 18px;
  background: var(--surface); border-color: var(--border); box-shadow: var(--shadow);
}
:root[data-design="modern"] .lab-callout:hover { transform: none; border-color: var(--accent); }
:root[data-design="modern"] .lab-callout__mark { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); }
:root[data-design="modern"] .lab-callout__text strong { font-family: var(--serif); font-size: 1.3rem; font-weight: 500; color: var(--text); letter-spacing: -.01em; }
:root[data-design="modern"] .lab-callout__arrow { transition: transform .2s ease; }
:root[data-design="modern"] .lab-callout:hover .lab-callout__arrow { transform: translateX(4px); }

/* ---- sections ------------------------------------------------------------ */
:root[data-design="modern"] .block { padding: 52px 0; border-top-color: var(--border); }
:root[data-design="modern"] .block__title { display: block; margin-bottom: 1em; padding-bottom: 0; border-bottom: 0; font-size: 1.8rem; line-height: 1.15; }
:root[data-design="modern"] .block__title::before { content: ""; display: block; width: 28px; height: 2px; margin-bottom: 16px; background: var(--accent); }
:root[data-design="modern"] .more a { font-weight: 500; }

/* ---- theme cards --------------------------------------------------------- */
:root[data-design="modern"] .theme-grid { gap: 40px 32px; }
:root[data-design="modern"] .theme-card { overflow: visible; background: none; border: 0; border-radius: 0; }
:root[data-design="modern"] .theme-card:hover { transform: none; box-shadow: none; }
:root[data-design="modern"] .theme-card__media { border-radius: 18px; background: var(--surface-2); }
:root[data-design="modern"] .theme-card__media img { transition: transform .6s ease; }
:root[data-design="modern"] .theme-card:hover .theme-card__media img { transform: scale(1.04); }
:root[data-design="modern"] .theme-card__body { padding: 18px 2px 0; }
:root[data-design="modern"] .theme-card__body h2,
:root[data-design="modern"] .theme-card__body h3 { font-size: 1.5rem; line-height: 1.2; color: var(--text); }
:root[data-design="modern"] .theme-card:hover h2,
:root[data-design="modern"] .theme-card:hover h3 { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 4px; }
:root[data-design="modern"] .theme-card__tagline { font-size: .98rem; line-height: 1.65; }
:root[data-design="modern"] .theme-card__more { font-weight: 500; color: var(--accent-strong); }

/* ---- lists, publications, metrics --------------------------------------- */
:root[data-design="modern"] .ref-list li { padding: .7em 0; }
:root[data-design="modern"] .pub-list { padding-left: 1.7em; }
:root[data-design="modern"] .pub-list li { margin: .85em 0; line-height: 1.68; }
:root[data-design="modern"] ol.pub-list li::marker { font-family: var(--serif); color: var(--accent); }
:root[data-design="modern"] .year { font-family: var(--serif); font-size: 1.3rem; font-weight: 400; color: var(--text); padding-bottom: .25em; }
:root[data-design="modern"] .metrics { margin: 8px 0 34px; padding: 20px 0; gap: 28px; background: none; border: 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); border-radius: 0; }
:root[data-design="modern"] .metrics + .block { border-top: 0; padding-top: 16px; }
:root[data-design="modern"] .metrics > strong,
:root[data-design="modern"] .metrics__link { color: var(--text); font-weight: 600; }
:root[data-design="modern"] .metric b { font-family: var(--serif); font-size: 1.55rem; font-weight: 400; color: var(--text); }

/* ---- profile, research theme pages, CV ----------------------------------- */
:root[data-design="modern"] .profile-grid { grid-template-columns: 260px 1fr; gap: 56px; }
:root[data-design="modern"] .avatar--lg { width: 220px; height: 260px; }
:root[data-design="modern"] .back a { font-weight: 500; }
:root[data-design="modern"] .theme-hero { border: 0; border-radius: 22px; }
:root[data-design="modern"] .theme-desc { font-size: 1.1rem; line-height: 1.85; }
:root[data-design="modern"] .cv-row { padding: .85em 0; }
:root[data-design="modern"] .cv-row__p { padding-top: .2em; font-size: .76rem; font-weight: 500; letter-spacing: .07em; text-transform: uppercase; }
:root[data-design="modern"] .cv-row__d b { font-weight: 600; }

/* ---- media page ---------------------------------------------------------- */
:root[data-design="modern"] .media-grid { gap: 36px 28px; }
:root[data-design="modern"] .media-card { overflow: visible; background: none; border: 0; border-radius: 0; }
:root[data-design="modern"] .media-card:hover { transform: none; box-shadow: none; }
:root[data-design="modern"] .media-card__logo { border: 1px solid var(--border); border-radius: 16px; }
:root[data-design="modern"] .media-card__body { padding: 14px 2px 0; }
:root[data-design="modern"] .media-card__outlet { color: var(--accent-strong); font-weight: 600; letter-spacing: .08em; }
:root[data-design="modern"] .media-card__title { font-family: var(--serif); font-size: 1.2rem; line-height: 1.35; }
:root[data-design="modern"] .media-card:hover .media-card__title { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 4px; }

/* ---- footer -------------------------------------------------------------- */
:root[data-design="modern"] #site-footer { margin-top: 56px; background: none; border-top-color: var(--border); }
:root[data-design="modern"] .footer__inner { padding-top: 32px; padding-bottom: 40px; font-size: .86rem; }

/* ---- responsive ---------------------------------------------------------- */
@media (max-width: 1080px) {
  :root[data-design="modern"] .nav { top: 72px; box-shadow: var(--shadow); }
  :root[data-design="modern"] .nav > a.active::after { display: none; }
  :root[data-design="modern"] .nav > a.nav-lab { margin: 6px 0 0; text-align: center; justify-content: center; }
}
@media (max-width: 760px) {
  :root[data-design="modern"] .header__inner { height: 64px; }
  :root[data-design="modern"] .nav { top: 64px; }
  :root[data-design="modern"] .hero { padding: 44px 0 40px; }
  :root[data-design="modern"] .hero h1 { font-size: 2.5rem; }
  :root[data-design="modern"] .avatar--hero { width: 220px; height: 270px; }
  :root[data-design="modern"] .profile-grid { grid-template-columns: 1fr; gap: 28px; }
  :root[data-design="modern"] .block { padding: 40px 0; }
}