@import url('https://fonts.googleapis.com/css2?family=Zen+Old+Mincho:wght@400;600;700&family=Zen+Kaku+Gothic+New:wght@400;500;700&display=swap');

:root {
  --paper: #FAF3E7;
  --paper-alt: #F1E6D3;
  --ink: #2E2620;
  --ink-soft: #5A4F42;
  --wine: #7A2E38;
  --wine-deep: #5C2129;
  --wood: #B5793E;
  --gold: #C9A46C;
  --sage: #5C6B4F;
  --max-width: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Zen Kaku Gothic New", "Hiragino Sans", "Yu Gothic", sans-serif;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, .logo {
  font-family: "Zen Old Mincho", serif;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.5;
  margin: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--wine);
  outline-offset: 3px;
}

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

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------- Header ---------- */
header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 243, 231, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(46, 38, 32, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  padding-bottom: 18px;
  flex-wrap: wrap;
  gap: 14px;
}

.logo {
  font-size: 1.25rem;
  letter-spacing: 0.02em;
}

.logo-sub {
  font-family: "Zen Kaku Gothic New", sans-serif;
  font-weight: 500;
  font-size: 0.72em;
  color: var(--wine);
  margin-left: 0.5em;
  vertical-align: middle;
}

nav {
  display: flex;
  gap: 28px;
  font-size: 0.94rem;
}

nav a {
  position: relative;
  padding-bottom: 4px;
}

nav a.active,
nav a:hover {
  color: var(--wine);
}

nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 0;
  height: 1px;
  background: var(--gold);
  transition: right 0.25s ease;
}

nav a:hover::after,
nav a.active::after {
  right: 0;
}

/* ---------- Hero ---------- */
.hero {
  padding: 96px 0 64px;
  position: relative;
  overflow: hidden;
}

.hero .wrap {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  color: var(--wine);
  font-weight: 500;
  margin-bottom: 18px;
}

.hero h1 {
  font-size: clamp(2.1rem, 4.2vw, 3.1rem);
  margin-bottom: 22px;
}

.hero p.lead {
  font-size: 1.05rem;
  color: var(--ink-soft);
  max-width: 46ch;
  margin-bottom: 30px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

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

.arcs {
  width: 100%;
  max-width: 340px;
  height: auto;
}

.arcs path {
  fill: none;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-dasharray: 600;
  stroke-dashoffset: 600;
  animation: draw-arc 1.6s ease forwards;
}

.arcs path:nth-child(1) { stroke: var(--wine); animation-delay: 0.05s; }
.arcs path:nth-child(2) { stroke: var(--wood); animation-delay: 0.25s; }
.arcs path:nth-child(3) { stroke: var(--sage); animation-delay: 0.45s; }
.arcs path:nth-child(4) { stroke: var(--gold); animation-delay: 0.65s; }

@keyframes draw-arc {
  to { stroke-dashoffset: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .arcs path {
    animation: none;
    stroke-dashoffset: 0;
  }
  html { scroll-behavior: auto; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 3px;
  font-size: 0.95rem;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
}

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

.btn-ghost {
  background: transparent;
  border-color: var(--ink);
  color: var(--ink);
}
.btn-ghost:hover { border-color: var(--wine); color: var(--wine); }

/* ---------- Sections ---------- */
section { padding: 72px 0; }

.divider {
  height: 1px;
  background: linear-gradient(90deg, var(--gold), transparent 70%);
  border: none;
  margin: 0;
}

.section-head {
  margin-bottom: 40px;
  max-width: 60ch;
}

.section-head .eyebrow { margin-bottom: 10px; }

.section-head h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

.section-head p {
  color: var(--ink-soft);
  margin-top: 14px;
}

.section-alt { background: var(--paper-alt); }

/* ---------- Card grid ---------- */
.grid {
  display: grid;
  gap: 24px;
}

.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--paper);
  border: 1px solid rgba(46, 38, 32, 0.1);
  border-radius: 4px;
  padding: 28px 24px;
}

.card h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
  color: var(--wine);
}

.card p {
  color: var(--ink-soft);
  font-size: 0.95rem;
  margin: 0;
}

.part-tag {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--wood);
  border: 1px solid var(--wood);
  border-radius: 999px;
  padding: 3px 12px;
  margin-bottom: 14px;
}

/* ---------- Scene cards (活動の一コマ) ---------- */
.scene-card {
  background: var(--paper);
  border-left: 3px solid var(--gold);
  padding: 22px 24px;
}

.scene-card .scene-time {
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--wood);
  margin-bottom: 8px;
  display: block;
}

.scene-card p {
  color: var(--ink-soft);
  margin: 0;
  font-size: 0.95rem;
}

/* ---------- Testimonial (団員の声) ---------- */
.quote-card {
  background: var(--paper-alt);
  border-radius: 4px;
  padding: 32px 28px;
  position: relative;
}

.quote-mark {
  font-family: "Zen Old Mincho", serif;
  font-size: 2.6rem;
  color: var(--gold);
  line-height: 1;
  display: block;
  margin-bottom: 6px;
}

.quote-card p.quote-body {
  color: var(--ink);
  font-size: 0.98rem;
  margin: 0 0 16px;
  line-height: 1.9;
}

.quote-attr {
  font-size: 0.85rem;
  color: var(--wood);
  display: block;
}

/* ---------- Photo placeholder ---------- */
.photo-placeholder {
  aspect-ratio: 4 / 3;
  background: var(--paper-alt);
  border: 1px dashed rgba(46,38,32,0.25);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-soft);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-align: center;
  padding: 12px;
}

/* ---------- CTA banner ---------- */
.cta-banner {
  background: var(--wine);
  color: var(--paper);
  padding: 64px 0;
  text-align: center;
}

.cta-banner h2 {
  color: var(--paper);
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  margin-bottom: 16px;
}

.cta-banner p {
  color: rgba(250, 243, 231, 0.85);
  max-width: 50ch;
  margin: 0 auto 28px;
}

.cta-banner .btn-primary {
  background: var(--paper);
  color: var(--wine);
}
.cta-banner .btn-primary:hover {
  background: var(--gold);
  color: var(--ink);
}

/* ---------- Steps (flow) ---------- */
.steps {
  display: grid;
  gap: 0;
  border-top: 1px solid rgba(46,38,32,0.1);
}

.step {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid rgba(46,38,32,0.1);
}

.step-label {
  font-family: "Zen Old Mincho", serif;
  color: var(--gold);
  font-size: 0.95rem;
  letter-spacing: 0.05em;
}

.step h3 {
  font-size: 1.05rem;
  margin-bottom: 6px;
}

.step p {
  color: var(--ink-soft);
  margin: 0;
  font-size: 0.95rem;
}

/* ---------- Cycle diagram v2: 6-node biannual (春/秋) cycle ---------- */
.cyc2-rect-spring { fill: var(--paper); stroke: var(--wine); stroke-width: 3; }
.cyc2-rect-autumn { fill: var(--paper); stroke: var(--gold); stroke-width: 3; stroke-dasharray: 6 5; }

.cyc2-arrow-solid { fill: none; stroke: var(--wine); stroke-width: 2.5; }
.cyc2-arrow-dashed { fill: none; stroke: var(--gold); stroke-width: 2.5; stroke-dasharray: 7 6; }

.cyc2-title {
  font-family: "Zen Kaku Gothic New", sans-serif;
  font-weight: 700;
  font-size: 23px;
  text-anchor: middle;
  fill: var(--ink);
}

.cyc2-month {
  font-family: "Zen Kaku Gothic New", sans-serif;
  font-size: 16px;
  text-anchor: middle;
}

.cyc2-month-spring { fill: var(--wine); }
.cyc2-month-autumn { fill: var(--wood); }

.cyc2-note {
  font-family: "Zen Kaku Gothic New", sans-serif;
  font-size: 15px;
  fill: var(--wood);
  text-anchor: middle;
}

.cyc2-center-title {
  font-family: "Zen Old Mincho", serif;
  font-size: 21px;
  text-anchor: middle;
  fill: var(--ink-soft);
}

.cyc2-legend {
  font-family: "Zen Kaku Gothic New", sans-serif;
  font-size: 15px;
  fill: var(--ink-soft);
}

/* ---------- Cycle diagram (活動イメージ) ---------- */
.cycle-diagram-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 48px;
}

.cycle-diagram-img {
  width: 100%;
  max-width: 720px;
  height: auto;
  display: block;
  margin: 0 auto;
}

.cycle-diagram {
  width: 100%;
  max-width: 520px;
  height: auto;
}

.cycle-arrow {
  fill: none;
  stroke: var(--gold);
  stroke-width: 2.5;
}

.cycle-arrow-loop {
  fill: none;
  stroke: var(--ink-soft);
  stroke-width: 2;
  stroke-dasharray: 7 7;
  opacity: 0.55;
}

.cycle-node-1 { fill: var(--wine); }
.cycle-node-2 { fill: var(--wood); }
.cycle-node-3 { fill: var(--sage); }
.cycle-node-4 { fill: var(--gold); }

.cycle-node-ring {
  fill: none;
  stroke: var(--paper);
  stroke-width: 6;
}

.cycle-glyph {
  font-family: "Zen Old Mincho", serif;
  font-size: 34px;
  font-weight: 700;
  text-anchor: middle;
  dominant-baseline: central;
}

.cycle-glyph-light { fill: var(--paper); }
.cycle-glyph-dark { fill: var(--ink); }

.cycle-month {
  font-family: "Zen Kaku Gothic New", sans-serif;
  font-size: 17px;
  font-weight: 500;
  text-anchor: middle;
}

.cycle-title {
  font-family: "Zen Kaku Gothic New", sans-serif;
  font-size: 20px;
  font-weight: 700;
  text-anchor: middle;
  fill: var(--ink);
}

.cycle-month-1, .cycle-title-1-mark { fill: var(--wine); }
.cycle-month-2 { fill: var(--wood); }
.cycle-month-3 { fill: var(--sage); }
.cycle-month-4 { fill: var(--wood); }

.cycle-label-right { text-anchor: start; }
.cycle-label-left { text-anchor: end; }

.cycle-center {
  font-family: "Zen Old Mincho", serif;
  font-size: 19px;
  text-anchor: middle;
  fill: var(--ink-soft);
}

.cycle-loop-label {
  font-family: "Zen Kaku Gothic New", sans-serif;
  font-size: 15px;
  fill: var(--ink-soft);
  text-anchor: middle;
}

/* ---------- Timeline (活動イメージ) ---------- */
.step-wide {
  grid-template-columns: 132px 1fr;
}

.step-label.wide {
  font-size: 0.82rem;
  line-height: 1.5;
}

.step-sublist {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.step-sublist li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 8px;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.step-sublist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold);
}

.step-sublist .sub-label {
  color: var(--wine);
  font-weight: 500;
}

.step.step-final {
  border-bottom: none;
}

/* ---------- FAQ ---------- */
.faq-item {
  border-bottom: 1px solid rgba(46,38,32,0.1);
  padding: 22px 0;
}

.faq-item h3 {
  font-size: 1rem;
  display: flex;
  gap: 12px;
  color: var(--ink);
}

.faq-item .q-mark {
  color: var(--wine);
  font-family: "Zen Old Mincho", serif;
}

.faq-item p {
  color: var(--ink-soft);
  margin: 10px 0 0 28px;
  font-size: 0.95rem;
}

/* ---------- Info table ---------- */
.info-table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--wood);
}

.info-table th, .info-table td {
  text-align: left;
  padding: 16px 12px;
  font-size: 0.95rem;
  vertical-align: top;
  border: 1px solid var(--wood);
}

.info-table th {
  width: 140px;
  color: var(--wood);
  font-weight: 500;
  background: rgba(181, 121, 62, 0.08);
}

/* ---------- Past concert list ---------- */
.concert-past {
  border-left: 2px solid var(--gold);
  padding-left: 24px;
  margin-bottom: 20px;
}

.concert-past .concert-date {
  font-size: 0.85rem;
  color: var(--wood);
  letter-spacing: 0.04em;
}

.concert-past h3 {
  font-size: 1.05rem;
  margin: 6px 0 8px;
}

.concert-past p {
  color: var(--ink-soft);
  margin: 0;
  font-size: 0.93rem;
}

/* ---------- Footer ---------- */
footer {
  background: var(--ink);
  color: var(--paper-alt);
  padding: 56px 0 32px;
}

.footer-brand {
  font-family: "Zen Old Mincho", serif;
  font-size: 1.2rem;
  color: var(--paper);
  margin-bottom: 10px;
}

footer p { color: rgba(241, 230, 211, 0.7); font-size: 0.9rem; }

.footer-links {
  display: flex;
  gap: 22px;
  margin: 20px 0;
  font-size: 0.9rem;
}

.footer-links a:hover { color: var(--gold); }

.footer-copy {
  margin-top: 24px;
  font-size: 0.78rem;
  color: rgba(241, 230, 211, 0.45);
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .arcs-wrap { order: -1; max-width: 220px; margin: 0 auto; }
  .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr 1fr; }
  nav { gap: 18px; font-size: 0.88rem; }
}

@media (max-width: 560px) {
  .wrap { padding: 0 20px; }
  .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; }
  .step { grid-template-columns: 1fr; gap: 6px; }
  .header-inner { justify-content: center; text-align: center; }
  nav { justify-content: center; }
}