:root {
  --ink: #111318;
  --sub: #525760;
  --paper: #f4f1ec;
  --white: #ffffff;
  --night: #07111a;
  --night-2: #101923;
  --red: #9f1d18;
  --red-dark: #641712;
  --gold: #c8a25a;
  --line: #ddd7cf;
  --shadow: 0 22px 60px rgba(12, 18, 26, .16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font-family: "Noto Serif JP", "Noto Serif CJK JP", "Yu Mincho", "Hiragino Mincho ProN", serif;
  line-height: 1.75;
}

a {
  color: inherit;
}

.site-header {
  position: absolute;
  z-index: 20;
  inset: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 26px clamp(24px, 5vw, 72px);
  color: var(--ink);
}

.brand {
  color: var(--white);
  text-decoration: none;
  font-family: "Noto Sans CJK JP", "Noto Sans JP", "Yu Gothic", "Meiryo", sans-serif;
  font-size: clamp(17px, 2vw, 26px);
  font-weight: 800;
  letter-spacing: .08em;
  text-shadow: 0 2px 16px rgba(0, 0, 0, .28);
}

.site-nav {
  display: flex;
  gap: clamp(16px, 2.2vw, 34px);
  align-items: center;
  color: rgba(17, 19, 24, .82);
  font-family: "Noto Sans CJK JP", "Noto Sans JP", "Yu Gothic", "Meiryo", sans-serif;
  font-size: 14px;
  font-weight: 700;
  text-shadow: 0 2px 12px rgba(255, 255, 255, .7);
}

.site-nav a {
  position: relative;
  text-decoration: none;
}

.site-nav a:first-child::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -10px;
  height: 3px;
  background: var(--red);
}

.sp-title-break {
  display: none;
}

.hero-image {
  position: relative;
  aspect-ratio: 16 / 9;
  width: 100%;
  overflow: hidden;
  background: var(--night);
}

.hero-image picture,
.hero-image img {
  width: 100%;
  height: 100%;
  display: block;
}

.hero-image img {
  object-fit: cover;
  object-position: top center;
}

.lead-section,
.athletes-section,
.event-section,
.practice-section {
  width: min(1260px, calc(100% - 48px));
  margin: 0 auto;
}

.lead-section {
  padding: 76px 0 58px;
  text-align: center;
}

.headline-sentence {
  margin: 0;
  font-size: clamp(24px, 3.2vw, 38px);
  font-weight: 800;
  letter-spacing: .08em;
}

.lead-section p:last-child {
  margin: 8px 0 0;
  color: var(--sub);
  font-size: clamp(20px, 2.4vw, 28px);
  font-weight: 700;
}

.athletes-section {
  padding: 40px 0 68px;
}

.athlete-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 34px;
}

.athlete-card {
  position: relative;
  min-height: 600px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background-color: var(--white);
  background-position: right center;
  background-repeat: no-repeat;
  background-size: auto 100%;
  box-shadow: var(--shadow);
}

.athlete-card--nakazawa {
  background-image: url("assets/nakazawa.jpg");
}

.athlete-card--fuchita {
  background-image: url("assets/fuchita.jpg");
}

.athlete-text {
  position: relative;
  z-index: 2;
  max-width: 58%;
  padding: 46px 38px;
}

.weight-label {
  display: inline-flex;
  margin: 0 0 26px;
  padding: 4px 11px;
  border-radius: 4px;
  background: var(--red);
  color: var(--white);
  font-family: "Noto Sans CJK JP", "Noto Sans JP", "Yu Gothic", "Meiryo", sans-serif;
  font-size: 15px;
  font-weight: 800;
}

.athlete-text h3 {
  margin: 0;
  font-size: clamp(30px, 3.6vw, 44px);
  line-height: 1.1;
  letter-spacing: .08em;
  white-space: nowrap;
}

.roman {
  margin: 10px 0 36px;
  color: var(--red);
  font-family: "Noto Serif JP", "Noto Serif CJK JP", Georgia, serif;
  font-size: 14px;
  letter-spacing: .18em;
}

.athlete-sp-image {
  display: none;
}

.profile-block {
  width: 260px;
  max-width: 100%;
  padding-top: 24px;
  border-top: 1px solid #cfc9c0;
  margin-top: 28px;
}

.profile-block h4 {
  margin: 0 0 10px;
  font-family: "Noto Sans CJK JP", "Noto Sans JP", "Yu Gothic", "Meiryo", sans-serif;
  font-size: 17px;
}

.profile-block p {
  margin: 0;
  width: 260px;
  max-width: 100%;
  color: #394049;
  font-family: "Noto Sans CJK JP", "Noto Sans JP", "Yu Gothic", "Meiryo", sans-serif;
  font-size: 14px;
  line-height: 1.9;
}

.event-section {
  padding: 0 0 72px;
  text-align: center;
}

.event-section h2,
.practice-section h2 {
  margin: 0 0 30px;
  font-size: clamp(30px, 4vw, 48px);
  letter-spacing: .16em;
}

.event-section h2::after,
.practice-section h2::after {
  content: "";
  display: block;
  width: 52px;
  height: 3px;
  margin: 14px auto 0;
  background: var(--red);
}

.info-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fff;
  text-align: left;
  box-shadow: 0 14px 34px rgba(12, 18, 26, .06);
}

.info-strip article {
  min-height: 158px;
  padding: 28px 26px;
  border-right: 1px solid var(--line);
}

.info-strip article:last-child {
  border-right: 0;
}

.info-icon {
  flex: 0 0 auto;
  color: var(--night);
  font-size: 14px;
  line-height: 1;
}

.info-heading {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 8px;
  white-space: nowrap;
}

.info-strip h3 {
  margin: 0;
  font-family: "Noto Sans CJK JP", "Noto Sans JP", "Yu Gothic", "Meiryo", sans-serif;
  font-size: 16px;
  line-height: 1;
}

.info-strip p {
  margin: 0;
  font-family: "Noto Sans CJK JP", "Noto Sans JP", "Yu Gothic", "Meiryo", sans-serif;
  font-size: 16px;
  line-height: 1.8;
  font-weight: 700;
}

.info-strip article:nth-child(3) p {
  font-size: 14px;
  font-weight: 500;
}

.venue-name {
  display: inline-block;
  font-size: 16px;
  font-weight: 700;
}

.map-link {
  display: inline-flex;
  margin-top: 12px;
  color: var(--red);
  font-family: "Noto Sans CJK JP", "Noto Sans JP", "Yu Gothic", "Meiryo", sans-serif;
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.event-description {
  margin-top: 26px;
  padding: 28px 32px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: rgba(255, 255, 255, .88);
  text-align: left;
  box-shadow: 0 14px 34px rgba(12, 18, 26, .05);
}

.event-description h3 {
  margin: 0 0 10px;
  font-size: 22px;
  letter-spacing: .08em;
}

.event-description p {
  margin: 0;
  color: #394049;
  font-family: "Noto Sans CJK JP", "Noto Sans JP", "Yu Gothic", "Meiryo", sans-serif;
  font-size: 15px;
  line-height: 2;
}

.support-band {
  position: relative;
  display: grid;
  grid-template-columns: minmax(360px, .9fr) minmax(0, 1.1fr);
  align-items: center;
  gap: 34px;
  overflow: hidden;
  padding: 64px max(32px, calc((100% - 1260px) / 2));
  color: var(--white);
  background-image: url("assets/support-bg.png");
  background-position: center;
  background-size: cover;
}

.support-band h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(30px, 3.2vw, 44px);
  line-height: 1.32;
  letter-spacing: .06em;
  text-shadow: 0 1px 14px rgba(255, 255, 255, .5);
}

.support-band h2 span {
  display: block;
  white-space: nowrap;
}

.support-band p {
  margin: 0;
  color: var(--ink);
  font-family: "Noto Sans CJK JP", "Noto Sans JP", "Yu Gothic", "Meiryo", sans-serif;
  font-size: 16px;
  font-weight: 700;
  text-shadow: 0 1px 12px rgba(255, 255, 255, .46);
}

.back-to-top {
  width: min(1260px, calc(100% - 48px));
  margin: 0 auto;
  padding: 8px 0 46px;
  text-align: right;
}

.back-to-top a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 180px;
  min-height: 44px;
  padding: 10px 24px;
  color: var(--ink);
  border: 1px solid var(--line);
  background: #fff;
  text-decoration: none;
  font-family: "Noto Sans CJK JP", "Noto Sans JP", "Yu Gothic", "Meiryo", sans-serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .08em;
  box-shadow: 0 12px 34px rgba(12, 18, 26, .08);
  transition: transform .2s ease, border-color .2s ease, color .2s ease;
}

.back-to-top a:hover {
  color: var(--red);
  border-color: rgba(159, 29, 24, .38);
  transform: translateY(-2px);
}

.practice-section {
  padding: 76px 0 70px;
  text-align: center;
}

.section-kicker {
  margin: 0 0 8px;
  color: var(--red);
  font-family: "Noto Serif JP", "Noto Serif CJK JP", Georgia, serif;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
}

.section-lead {
  max-width: 820px;
  margin: -12px auto 34px;
  color: var(--sub);
  font-family: "Noto Sans CJK JP", "Noto Sans JP", "Yu Gothic", "Meiryo", sans-serif;
}

.activity-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  text-align: left;
}

.activity-grid article {
  background: var(--white);
}

.activity-image {
  height: 190px;
  background-color: #d8d6d0;
  background-size: cover;
  background-position: center;
}

.activity-image.partnership {
  background-image: url("assets/activity-partnership.png");
}

.activity-image.balance {
  background-image: url("assets/activity-balance.png");
}

.activity-image.outlook {
  background-image: url("assets/activity-outlook.png");
}

.activity-grid h3 {
  margin: 16px 0 4px;
  font-size: 21px;
  line-height: 1.45;
}

.activity-grid p {
  margin: 0;
  color: var(--sub);
  font-family: "Noto Sans CJK JP", "Noto Sans JP", "Yu Gothic", "Meiryo", sans-serif;
  font-size: 14px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding: 28px max(24px, calc((100% - 1260px) / 2));
  color: rgba(255, 255, 255, .78);
  background: linear-gradient(120deg, var(--night), #0e1e2d);
  font-family: "Noto Sans CJK JP", "Noto Sans JP", "Yu Gothic", "Meiryo", sans-serif;
}

.site-footer p,
.site-footer small {
  margin: 0;
  font-size: 13px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 980px) {
  .site-header {
    position: absolute;
  }

  .site-nav {
    display: none;
  }

  .athlete-cards,
  .activity-grid {
    grid-template-columns: 1fr;
  }

  .info-strip {
    grid-template-columns: 1fr;
  }

  .info-strip article {
    min-height: 0;
    padding: 22px 24px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .info-heading {
    margin-bottom: 6px;
  }

  .info-strip article:last-child {
    border-bottom: 0;
  }

  .support-band {
    grid-template-columns: 1fr;
  }

}

@media (max-width: 640px) {
  .site-header {
    padding: 18px;
  }

  .brand {
    color: var(--white);
    text-shadow: 0 2px 16px rgba(0, 0, 0, .28);
  }

  .hero-image {
    aspect-ratio: 1536 / 2590;
    background: #f4f1ec;
  }

  .hero-image img {
    object-fit: cover;
  }

  .lead-section {
    padding: 42px 0 28px;
  }

  .lead-section p:last-child {
    text-align: left;
  }

  .athletes-section {
    padding: 24px 0 44px;
  }

  .athlete-card {
    min-height: 0;
    background-image: none;
  }

  .athlete-text {
    max-width: none;
    padding: 32px 24px;
  }

  .athlete-text h3 {
    font-size: clamp(30px, 9vw, 40px);
  }

  .roman {
    margin-bottom: 18px;
  }

  .athlete-sp-image {
    display: block;
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    object-position: center top;
    border-radius: 6px;
    margin: 0 0 28px;
  }

  .profile-block {
    width: 100%;
  }

  .profile-block p {
    width: 100%;
  }

  .activity-grid h3 {
    font-size: 19px;
    line-height: 1.45;
  }

  .info-strip {
    grid-template-columns: 1fr;
  }

  .info-strip article,
  .info-strip article:nth-child(2) {
    min-height: 0;
    padding: 20px 22px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .info-heading {
    margin-bottom: 6px;
  }

  .info-strip article:last-child {
    border-bottom: 0;
  }

  .support-band {
    padding: 44px 24px;
  }

  .support-sp-join {
    display: none;
  }

  .sp-title-break {
    display: block;
  }

  .back-to-top {
    text-align: center;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}