/* ================================
   Furmus — design tokens
   ================================ */
:root {
  --paper: #f5f3ec;
  --paper-warm: #edf2ee;
  --ink: #172a32;
  --ink-soft: #43565c;
  --blue: #2f6f7e;
  --blue-deep: #245563;
  --blue-soft: #dbe8e9;
  --green: #347a45;
  --green-deep: #185238;
  --green-soft: #e2eee4;
  --gold: #d89b18;
  --clay: #b77714;
  --slate: #3f7580;
  --line: #ccd9d5;
  --max: 1120px;

  --font-display: "Noto Serif JP", "Noto Serif", serif;
  --font-body: "Noto Sans JP", "Noto Sans", sans-serif;
}

* { box-sizing: border-box; }

html, body {
  max-width: 100%;
  overflow-x: hidden;
}

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--blue-deep);
  line-height: 1.3;
  margin: 0 0 0.5em;
  font-weight: 600;
}

h1 { font-size: clamp(2.1rem, 4.5vw, 3.4rem); letter-spacing: -0.01em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: 1.2rem; }

p { margin: 0 0 1em; color: var(--ink-soft); }

a {
  color: var(--slate);
  text-decoration: none;
}
a:hover { text-decoration: underline; }

a:focus-visible,
button:focus-visible,
input:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--clay);
  outline-offset: 3px;
}

img { max-width: 100%; height: auto; display: block; }

.hero-grid > *,
.two-col > *,
.team-grid > *,
.footer-grid > *,
.schedule-entry > * {
  min-width: 0;
}

h1, h2, h3, h4, p, a, span {
  overflow-wrap: break-word;
}

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

/* ---- field-row motif ---- */
.field-rule {
  height: 14px;
  background-image: repeating-linear-gradient(
    to bottom,
    var(--line) 0px, var(--line) 1px,
    transparent 1px, transparent 5px
  );
  opacity: 0.9;
}

/* One line under the header only: the header's own border is kept */
.site-header + .field-rule { display: none; }

.field-divider {
  border: none;
  height: 1px;
  background: var(--line);
  margin: 0;
}

/* ================================
   Header / Nav
   ================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(245, 243, 236, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 104px;
}

.brand {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--green-deep);
  letter-spacing: 0.01em;
}
.site-header .brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  line-height: 1.05;
}
.brand-lockup {
  display: block;
  width: 170px;
  height: auto;
  flex: 0 0 auto;
}
.brand:hover { text-decoration: none; }
.brand small {
  display: block;
  font-family: var(--font-body);
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  text-transform: uppercase;
}

.nav-main {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-main a {
  color: var(--ink);
  font-size: 0.95rem;
  font-weight: 500;
}
.nav-main a:hover { color: var(--blue); text-decoration: none; }

.nav-main a.active {
  color: var(--blue);
}

.lang-toggle {
  display: inline-flex;
  border: 1px solid var(--blue);
  border-radius: 999px;
  overflow: hidden;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.03em;
}
.lang-toggle button {
  border: none;
  background: transparent;
  color: var(--blue);
  padding: 6px 14px;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: inherit;
  font-weight: inherit;
}
.lang-toggle button.is-active {
  background: var(--blue);
  color: var(--paper);
}

.nav-toggle {
  display: none;
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 8px;
  min-width: 44px;
  min-height: 44px;
  position: relative;
  z-index: 2;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--ink);
  margin: 5px 0;
}

/* ================================
   Hero
   ================================ */
.hero {
  padding: 76px 0 64px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(340px, 0.95fr);
  align-items: center;
  gap: clamp(36px, 7vw, 88px);
}

.hero-logo-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-logo {
  width: min(100%, 520px);
  filter: drop-shadow(0 18px 28px rgba(24, 82, 56, 0.15));
}

.hero-eyebrow {
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--clay);
  font-weight: 700;
  margin-bottom: 14px;
}

.hero h1 { max-width: 16ch; }

.hero-lede {
  font-size: 1.15rem;
  max-width: 46ch;
  margin-top: 18px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 28px;
  flex-wrap: wrap;
}

/* ================================
   Buttons
   ================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.92rem;
  border: 1px solid transparent;
  cursor: pointer;
  font-family: var(--font-body);
}
.btn:hover { text-decoration: none; }

.btn-primary {
  background: var(--blue);
  color: var(--paper);
}
.btn-primary:hover { background: var(--blue-deep); }

.btn-outline {
  background: transparent;
  color: var(--green-deep);
  border-color: var(--green);
}
.btn-outline:hover { background: var(--paper-warm); }

.btn-clay {
  background: var(--clay);
  color: var(--paper);
}
.btn-clay:hover { background: #96482e; }

/* ================================
   Sections
   ================================ */
section { padding: 64px 0; }

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.section-label {
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--green);
  font-weight: 700;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.mv-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 32px;
  position: relative;
}
.mv-card::before {
  content: "";
  display: block;
  width: 40px;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--green));
  margin-bottom: 20px;
}

/* video */
.video-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, var(--blue-deep), var(--green-deep));
  border-radius: 6px;
  overflow: hidden;
}
.video-frame iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}
.video-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 10px;
  color: var(--paper);
  text-align: center;
  padding: 24px;
}
.video-placeholder .play-dot {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 2px solid var(--paper);
  display: flex;
  align-items: center;
  justify-content: center;
}

.upload-note {
  margin-top: 14px;
  font-size: 0.88rem;
  color: var(--ink-soft);
}

/* ================================
   Team grid
   ================================ */
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.person-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
}
.person-photo {
  display: none; /* photo boxes hidden until photos are ready: delete this line to bring them back */
  aspect-ratio: 4/5;
  background: linear-gradient(160deg, var(--blue) 0%, var(--green) 100%);
}
.person-body { padding: 18px 20px 22px; }
.person-role {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--clay);
  font-weight: 700;
  margin-bottom: 6px;
}
.person-body h3 { margin-bottom: 4px; }
.person-affil { font-size: 0.85rem; color: var(--ink-soft); margin: 0; }

.team-group-label {
  margin: 56px 0 24px;
}
.team-group-label:first-of-type { margin-top: 0; }

/* ================================
   Events
   ================================ */
.event-row {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  gap: 24px;
  align-items: center;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
}
.event-row:first-of-type { border-top: 1px solid var(--line); }

.event-date {
  font-family: var(--font-display);
  color: var(--green-deep);
}
.event-date .day { font-size: 1.8rem; font-weight: 600; display: block; }
.event-date .month { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-soft); }

.event-info h3 { margin-bottom: 6px; }
.event-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; }
.tag {
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--blue-soft);
  color: var(--blue-deep);
  border: 1px solid var(--line);
}

/* event detail */
.event-hero {
  background: linear-gradient(120deg, var(--blue-deep), var(--green-deep));
  color: var(--paper);
  padding: 56px 0 44px;
}
.event-hero .hero-eyebrow { color: #e8b79a; }
.event-hero h1 { color: var(--paper); }
.event-hero p { color: #d9dfd8; }

.detail-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 56px;
  align-items: start;
}

.info-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 26px;
}
.info-card + .info-card { margin-top: 20px; }
.info-card h3 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--slate);
  margin-bottom: 14px;
}

.info-list { list-style: none; margin: 0; padding: 0; }
.info-list li {
  display: flex;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 0.92rem;
}
.info-list li:last-child { border-bottom: none; }
.info-list .label { color: var(--ink-soft); min-width: 92px; flex-shrink: 0; }

.person-inline {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 10px 0;
}
.person-inline .dot {
  width: 40px; height: 40px; border-radius: 50%;
  background: linear-gradient(160deg, var(--green) 0%, var(--slate) 100%);
  flex-shrink: 0;
}
.person-inline .name { font-weight: 600; color: var(--ink); font-size: 0.94rem; }
.person-inline .role { font-size: 0.8rem; color: var(--ink-soft); }

.schedule-list { list-style: none; margin: 0; padding: 0; }
.schedule-list li {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}
.schedule-list li:last-child { border-bottom: none; }
.schedule-list .time { font-weight: 700; color: var(--green-deep); font-size: 0.9rem; }

/* Action Weeks schedule */
.action-weeks-intro {
  max-width: 760px;
  margin-bottom: 34px;
}

.featured-event {
  padding: 32px;
  margin-bottom: 42px;
  background: #fff;
  border: 1px solid var(--line);
  border-top: 5px solid var(--green);
  border-radius: 10px;
}

.featured-event-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 30px;
}

.featured-event-head > div:first-child { max-width: 760px; }

.event-badge {
  flex: 0 0 auto;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--green-soft);
  color: var(--green-deep);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.featured-event-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.95fr);
  gap: 32px;
  align-items: start;
}

.event-facts {
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.event-fact {
  display: grid;
  grid-template-columns: 118px minmax(0, 1fr);
  gap: 14px;
  padding: 15px 18px;
  border-bottom: 1px solid var(--line);
}

.event-fact strong {
  color: var(--blue-deep);
  font-size: 0.86rem;
}

.event-fact span { color: var(--ink-soft); }

.event-register {
  margin: 18px;
  justify-content: center;
}

.event-agenda {
  display: grid;
  gap: 14px;
}

.agenda-item {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 16px;
  padding: 20px;
  background: var(--paper-warm);
  border-radius: 8px;
}

.agenda-item time {
  color: var(--green-deep);
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
}

.agenda-number {
  display: block;
  margin-bottom: 3px;
  color: var(--clay);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.agenda-item h3 { margin-bottom: 4px; }
.agenda-item p { margin-bottom: 0; }

.flyer-gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  margin-top: 32px;
}

.flyer-card {
  margin: 0;
  min-width: 0;
}

.flyer-card a {
  display: block;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--paper-warm);
}

.flyer-card a:hover {
  text-decoration: none;
  box-shadow: 0 12px 30px rgba(23, 42, 50, 0.12);
}

.flyer-card img {
  width: 100%;
  aspect-ratio: 1241 / 1755;
  object-fit: cover;
}

.flyer-card figcaption {
  padding: 10px 2px 0;
  color: var(--ink-soft);
  font-size: 0.82rem;
}

.action-weeks-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  align-items: stretch;
}

.week-card {
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: #fff;
}

.week-heading {
  padding: 24px 28px;
  background: var(--blue-soft);
  border-bottom: 4px solid var(--blue);
}

.week-card:nth-child(2) .week-heading {
  background: var(--green-soft);
  border-bottom-color: var(--green);
}

.week-heading strong {
  display: block;
  color: var(--ink);
  font-size: clamp(1.2rem, 2.5vw, 1.65rem);
  line-height: 1.25;
}

.week-heading span {
  display: block;
  margin-top: 4px;
  color: var(--ink-soft);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.schedule-column {
  padding: 10px 28px 18px;
}

.schedule-entry {
  display: grid;
  grid-template-columns: 86px 1fr;
  gap: 16px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.schedule-entry:last-child { border-bottom: 0; }

.schedule-date {
  color: var(--blue-deep);
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1.35;
  text-transform: uppercase;
}

.week-card:nth-child(2) .schedule-date { color: var(--green-deep); }

.schedule-entry h3 { margin-bottom: 7px; }

/* Compact fact list and register button inside a schedule entry */
.entry-facts {
  display: grid;
  gap: 6px;
  margin: 12px 0 14px;
}
.entry-fact {
  display: grid;
  grid-template-columns: 78px minmax(0, 1fr);
  gap: 10px;
  font-size: 0.9rem;
}
.entry-fact strong {
  color: var(--blue-deep);
  font-size: 0.82rem;
}
.entry-fact span { color: var(--ink-soft); }
.entry-register {
  margin-top: 4px;
  padding: 10px 18px;
  font-size: 0.88rem;
}

.schedule-entry p:last-child { margin-bottom: 0; }
.schedule-note { margin-top: 18px; font-size: 0.88rem; }

/* ================================
   Footer
   ================================ */
.site-footer {
  background: linear-gradient(120deg, var(--blue-deep), #153f43 55%, var(--green-deep));
  color: #d9dfd8;
  padding: 56px 0 32px;
  margin-top: 40px;
}
.site-footer .field-rule { opacity: 0.15; margin-bottom: 40px; filter: invert(1); }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 40px;
}
.site-footer h4 {
  color: var(--paper);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}
.site-footer .brand { color: var(--paper); }
.site-footer .brand small { color: #a9b3a6; }
.site-footer p { color: #b7c0b4; font-size: 0.92rem; }
.site-footer a { color: #d9dfd8; }
.footer-bottom {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid #385043;
  font-size: 0.8rem;
  color: #92a08e;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

/* ================================
   Language visibility
   ================================ */
/* Only ever hides the inactive language. The visible element keeps whatever
   display type it already has, so component styling is never overridden. */
html[lang="ja"] [data-en],
html[lang="en"] [data-jp] { display: none; }

/* ================================
   Responsive
   ================================ */
@media (max-width: 980px) {
  .nav-main {
    position: fixed;
    inset: 104px 0 0 0;
    background: var(--paper);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 24px 32px;
    gap: 0;
    width: 100%;
    height: calc(100vh - 104px);
    height: calc(100dvh - 104px);
    overflow-y: auto;
    transform: translateX(100%);
    visibility: hidden;
    pointer-events: none;
    transition: transform 0.25s ease, visibility 0s linear 0.25s;
  }
  .nav-main.is-open {
    transform: translateX(0);
    visibility: visible;
    pointer-events: auto;
    transition-delay: 0s;
  }
  .nav-main > a {
    width: 100%;
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
    font-size: 1rem;
  }
  .nav-main .lang-toggle { margin-top: 24px; }
  .nav-toggle { display: block; }
  body.nav-open { overflow: hidden; }
}

@media (max-width: 880px) {
  .two-col, .detail-grid { grid-template-columns: 1fr; }
  .featured-event-grid { grid-template-columns: 1fr; }
  .hero-grid { grid-template-columns: minmax(0, 1fr) minmax(220px, 0.65fr); gap: 28px; }
  .team-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .event-row { grid-template-columns: 70px minmax(0, 1fr); }
  .event-row .btn { grid-column: 1 / -1; justify-self: start; margin-top: 8px; }
}

@media (max-width: 760px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-logo-wrap { order: -1; }
}

@media (max-width: 640px) {
  body { font-size: 15.5px; line-height: 1.65; }
  .wrap { padding-inline: 18px; }
  h1 { font-size: clamp(2rem, 10vw, 2.65rem); }
  h2 { font-size: clamp(1.4rem, 7vw, 1.9rem); }

  .team-grid { grid-template-columns: 1fr; }
  .site-header .wrap { height: 78px; }
  .brand-lockup { width: 118px; }
  .nav-main {
    inset: 78px 0 0 0;
    height: calc(100vh - 78px);
    height: calc(100dvh - 78px);
    padding-inline: 18px;
  }

  .hero { padding: 32px 0 38px; }
  .hero h1 { max-width: none; }
  .hero-logo { width: min(100%, 480px); }
  .hero-lede { font-size: 1.02rem; margin-top: 14px; }
  .hero-actions { margin-top: 22px; gap: 10px; }

  section { padding: 42px 0; }
  .section-head { margin-bottom: 28px; gap: 16px; }
  .mv-card { padding: 22px 20px; }
  .person-photo { aspect-ratio: 16 / 10; }
  .person-body { padding: 17px 18px 20px; }
  .team-group-label { margin-top: 40px; }

  .action-weeks-grid { grid-template-columns: 1fr; gap: 24px; }
  .featured-event { padding: 24px 20px; }
  .featured-event-head { display: block; margin-bottom: 24px; }
  .event-badge { display: inline-block; margin-top: 8px; }
  .event-fact { grid-template-columns: 1fr; gap: 4px; padding: 14px 16px; }
  .event-register { margin: 16px; }
  .flyer-gallery { grid-template-columns: 1fr; gap: 24px; margin-top: 26px; }
  .week-card { padding: 0; }
  .week-heading { padding: 20px 18px; }
  .schedule-column { padding: 4px 18px 12px; }
  .schedule-entry { grid-template-columns: 66px minmax(0, 1fr); gap: 12px; padding: 18px 0; }
  .schedule-entry h3 { font-size: 1.08rem; }

  .info-list li { display: grid; grid-template-columns: minmax(74px, auto) 1fr; }
  .info-list .label { min-width: 0; }
  .video-placeholder { padding: 18px; font-size: 0.92rem; }

  .site-footer { padding: 44px 0 24px; }
  .site-footer .field-rule { margin-bottom: 30px; }
  .footer-bottom { margin-top: 28px; flex-direction: column; }
}

@media (max-width: 440px) {
  .wrap { padding-inline: 16px; }
  .brand-lockup { width: 108px; }
  .btn { width: 100%; justify-content: center; min-height: 46px; }
  .section-head .btn { width: 100%; }
  .schedule-entry { grid-template-columns: 58px minmax(0, 1fr); gap: 10px; }
  .schedule-date { font-size: 0.78rem; }
  .week-heading strong { font-size: 1.2rem; }
  .agenda-item { grid-template-columns: 62px minmax(0, 1fr); padding: 16px; }
}

/* Lecture flyer inside a schedule entry: keep it a moderate size */
.entry-flyer { max-width: 360px; margin-top: 16px; }