:root {
  --outer: #ececea;
  --paper: #ffffff;
  --ink: #1d252e;
  --navy: #071522;
  --orange: #f06400;
  --line: #e7e7e3;
  --warm: #f7f6f2;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--outer);
  color: var(--ink);
  font-family:
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    "Hiragino Sans",
    "Hiragino Kaku Gothic ProN",
    "Yu Gothic",
    Meiryo,
    sans-serif;
  line-height: 1.85;
  letter-spacing: 0.015em;
}

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

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

.page {
  width: min(1160px, calc(100% - 36px));
  margin: 22px auto 40px;
  overflow: hidden;
  background: var(--paper);
  border: 1px solid #dfdfdc;
}

/* --------------------------------
   Header
-------------------------------- */

.header {
  min-height: 78px;
  padding: 0 34px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--navy);
}

.header-logo {
  width: 228px;
  height: auto;
}

.special {
  color: #f4f6f7;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
}

/* --------------------------------
   Hero
-------------------------------- */

.hero {
  min-height: 390px;
  display: grid;
  grid-template-columns: 54% 46%;
  background: #ffffff;
}

.hero-copy {
  padding: 54px 44px 48px 54px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-eyebrow {
  margin-bottom: 18px;
  color: var(--orange);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.hero-meta {
  margin: 0 0 22px;
  color: #37434d;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.7;
}

.hero h1 {
  margin: 0;
  color: var(--navy);
  font-family:
    "Yu Mincho",
    "Hiragino Mincho ProN",
    serif;
  font-size: clamp(38px, 5vw, 58px);
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: 0.03em;
}

.hero-photo {
  position: relative;
  overflow: hidden;
  background: #d9dde0;
}

.hero-photo::before {
  position: absolute;
  z-index: 1;
  inset: 0;
  content: "";
  pointer-events: none;
  background:
    linear-gradient(
      90deg,
      rgba(255, 255, 255, 0.65) 0%,
      rgba(255, 255, 255, 0.12) 22%,
      rgba(255, 255, 255, 0) 40%
    );
}

.hero-photo img {
  width: 100%;
  height: 100%;
  min-height: 390px;
  object-fit: cover;
  object-position: center center;
}

/* --------------------------------
   Common section
-------------------------------- */

.section {
  padding: 58px 54px;
  border-top: 1px solid var(--line);
}

.section h2 {
  margin: 0 0 22px;
  color: var(--navy);
  font-family:
    "Yu Mincho",
    "Hiragino Mincho ProN",
    serif;
  font-size: clamp(27px, 3vw, 38px);
  line-height: 1.5;
  letter-spacing: 0.02em;
}

.section p {
  margin: 0 0 14px;
  color: #47515a;
  font-size: 16px;
}

/* --------------------------------
   Crowd / sponsorship
-------------------------------- */

.day {
  display: grid;
  grid-template-columns: 52% 48%;
  gap: 44px;
  align-items: center;
}

.day-photo img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

/* --------------------------------
   Fireworks video
-------------------------------- */

.movie-section {
  padding: 58px 54px 62px;
  color: #ffffff;
  background: var(--navy);
}

.movie-grid {
  display: grid;
  grid-template-columns: 36% 64%;
  gap: 44px;
  align-items: center;
}

.movie-section h2 {
  margin: 0 0 20px;
  color: #ffffff;
  font-family:
    "Yu Mincho",
    "Hiragino Mincho ProN",
    serif;
  font-size: clamp(27px, 3vw, 38px);
  line-height: 1.5;
}

.movie-section p {
  margin: 0 0 14px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 15px;
}

.movie-wrap {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #000000;
}

.movie-wrap iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* --------------------------------
   Cleanup activity
-------------------------------- */

.cleanup {
  background: var(--warm);
}

.cleanup-grid {
  display: grid;
  grid-template-columns: 46% 54%;
  gap: 46px;
  align-items: center;
}

.cleanup-action img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.group-row {
  margin-top: 36px;
  display: grid;
  grid-template-columns: 26% 74%;
  gap: 28px;
  align-items: end;
}

.group-label {
  color: #7b838a;
  font-size: 12px;
  line-height: 1.8;
}

.group-photo img {
  width: 100%;
  max-height: 430px;
  object-fit: cover;
}

/* --------------------------------
   Closing message
-------------------------------- */

.closing {
  padding: 54px 54px 48px;
  text-align: center;
  background: #ffffff;
  border-top: 1px solid var(--line);
}

.closing h2 {
  margin: 0 0 22px;
  color: var(--navy);
  font-family:
    "Yu Mincho",
    "Hiragino Mincho ProN",
    serif;
  font-size: clamp(29px, 3.2vw, 42px);
  line-height: 1.5;
}

.closing p {
  max-width: 780px;
  margin: 0 auto;
  color: #535d65;
  font-size: 16px;
  line-height: 2;
}

/* --------------------------------
   Footer
-------------------------------- */

.footer {
  min-height: 100px;
  padding: 20px 34px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 9px;
  background: var(--navy);
}

.footer-brand {
  width: 250px;
  max-width: 70vw;
  height: auto;
}

.footer-copy {
  color: #c5ccd1;
  font-size: 10px;
  letter-spacing: 0.1em;
}

/* --------------------------------
   Responsive
-------------------------------- */

@media (max-width: 820px) {
  .page {
    width: 100%;
    margin: 0;
    border: 0;
  }

  .header {
    min-height: 66px;
    padding: 0 20px;
  }

  .header-logo {
    width: 190px;
  }

  .special {
    font-size: 9px;
  }

  .hero {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    padding: 38px 24px 34px;
  }

  .hero h1 {
    font-size: 39px;
  }

  .hero-photo img {
    min-height: 240px;
  }

  .hero-photo::before {
    background:
      linear-gradient(
        180deg,
        #ffffff 0%,
        rgba(255, 255, 255, 0.1) 12%,
        transparent 25%
      );
  }

  .section,
  .movie-section {
    padding: 42px 24px;
  }

  .day,
  .movie-grid,
  .cleanup-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .group-row {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .closing {
    padding: 42px 24px 38px;
  }
}

@media (max-width: 480px) {
  .header {
    padding: 0 16px;
  }

  .header-logo {
    width: 165px;
  }

  .special {
    font-size: 8px;
  }

  .hero-copy {
    padding: 32px 18px 28px;
  }

  .hero h1 {
    font-size: 33px;
  }

  .section,
  .movie-section {
    padding: 36px 18px;
  }

  .section p,
  .closing p {
    font-size: 15px;
  }
}