body {
  background:
    radial-gradient(circle at 1px 1px, rgba(255,255,255,.18) 1px, transparent 1px),
    #0b6f8f;
  background-size: 8px 8px, auto;
  color: #000;
  font-family: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", system-ui, sans-serif;
  image-rendering: pixelated;
}

.board-main {
  background: transparent;
  color: #000;
  font-family: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", system-ui, sans-serif;
  min-height: calc(100vh - 34px);
  padding: 12px;
}

.board-shell {
  background: #c0c0c0;
  border-top: 2px solid #ffffff;
  border-left: 2px solid #ffffff;
  border-right: 2px solid #404040;
  border-bottom: 2px solid #404040;
  box-shadow: inset -1px -1px 0 #808080, inset 1px 1px 0 #dfdfdf;
  margin: 0 auto;
  max-width: 1080px;
  padding: 3px;
}

.board-head,
.board-thread-head {
  background: #c0c0c0;
  border: 0;
  padding: 0;
}

.board-head::before,
.board-thread-head::before,
.board-list-head::before,
.board-post-box h2::before,
.board-reply h2::before,
.board-side-note h2::before,
.board-report h2::before {
  content: "";
}

.board-kicker {
  background: #000080;
  color: #fff;
  display: block;
  font-family: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", system-ui, sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1;
  margin: 0;
  padding: 4px 6px;
  text-transform: none;
}

.board-free-banner {
  background: #b00000;
  border-top: 2px solid #ffb0b0;
  border-left: 2px solid #ffb0b0;
  border-right: 2px solid #400000;
  border-bottom: 2px solid #400000;
  color: #fff;
  display: grid;
  gap: 3px;
  margin: 0 0 4px;
  padding: 7px 9px;
}

.board-free-banner strong {
  color: #fff;
  font-size: 15px;
  line-height: 1.4;
}

.board-free-banner span {
  color: #fff8d8;
  font-size: 12px;
  line-height: 1.6;
}

.board-head h1,
.board-thread-head h1 {
  background: #c0c0c0;
  border-top: 1px solid #ffffff;
  border-left: 1px solid #ffffff;
  border-right: 1px solid #808080;
  border-bottom: 1px solid #808080;
  color: #000;
  font-size: 22px;
  font-weight: 700;
  line-height: 1.45;
  margin: 4px;
  padding: 8px;
}

.board-head p,
.board-thread-head p {
  background: #ffffe1;
  border: 1px solid #808080;
  color: #000;
  font-size: 14px;
  line-height: 1.8;
  margin: 4px;
  padding: 6px;
}

.board-notice,
.board-small {
  color: #000;
  font-size: 12px;
}

.board-tabs {
  background: #c0c0c0;
  border-top: 2px solid #808080;
  border-left: 2px solid #808080;
  border-right: 2px solid #ffffff;
  border-bottom: 2px solid #ffffff;
  display: flex;
  flex-wrap: wrap;
  margin: 4px;
  padding: 3px;
}

.board-rules {
  background: #c0c0c0;
  border-top: 2px solid #ffffff;
  border-left: 2px solid #ffffff;
  border-right: 2px solid #404040;
  border-bottom: 2px solid #404040;
  box-shadow: inset -1px -1px 0 #808080, inset 1px 1px 0 #dfdfdf;
  margin: 4px;
  padding: 3px;
}

.board-rules-title {
  background: #800000;
  color: #ffffff;
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  padding: 4px 6px;
}

.board-rules-body {
  background: #ffffe1;
  border-top: 2px solid #404040;
  border-left: 2px solid #404040;
  border-right: 2px solid #ffffff;
  border-bottom: 2px solid #ffffff;
  margin-top: 3px;
  padding: 8px 10px;
}

.board-rules-body ul {
  margin: 0;
  padding-left: 18px;
}

.board-rules-body li {
  color: #000;
  font-size: 13px;
  line-height: 1.75;
}

.board-tabs a,
.board-list-head a,
.board-back a,
.board-login-link {
  color: #000080;
  font-size: 13px;
  text-decoration: underline;
}

.board-tabs a {
  background: #c0c0c0;
  border-top: 2px solid #ffffff;
  border-left: 2px solid #ffffff;
  border-right: 2px solid #404040;
  border-bottom: 2px solid #404040;
  color: #000;
  margin: 2px;
  padding: 5px 8px;
  text-decoration: none;
}

.board-tabs a.is-current,
.board-tabs a:hover {
  background: #000080;
  border-top-color: #404040;
  border-left-color: #404040;
  border-right-color: #ffffff;
  border-bottom-color: #ffffff;
  color: #ffffff;
}

.board-home-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 4px;
  margin: 4px;
}

.board-post-box,
.board-list-wrap,
.board-reply,
.board-thread,
.board-side-note,
.board-report {
  background: #c0c0c0;
  border-top: 2px solid #ffffff;
  border-left: 2px solid #ffffff;
  border-right: 2px solid #404040;
  border-bottom: 2px solid #404040;
  box-shadow: inset -1px -1px 0 #808080, inset 1px 1px 0 #dfdfdf;
  padding: 3px;
}

.board-home-grid .board-list-wrap {
  border-right: 2px solid #404040;
}

.board-side {
  display: grid;
  gap: 4px;
}

.board-list-head {
  align-items: center;
  background: #000080;
  color: #fff;
  display: flex;
  gap: 10px;
  justify-content: space-between;
  margin: 0 0 3px;
  padding: 4px 6px;
}

.board-list-head h2,
.board-post-box h2,
.board-reply h2,
.board-side-note h2,
.board-report h2 {
  background: #000080;
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  margin: 0 0 4px;
  padding: 4px 6px;
}

.board-list-head h2 {
  margin: 0;
}

.board-list-head a {
  color: #fff;
}

.board-thread-list,
.board-res-list {
  background: #fff;
  border-top: 2px solid #404040;
  border-left: 2px solid #404040;
  border-right: 2px solid #ffffff;
  border-bottom: 2px solid #ffffff;
  list-style: none;
  margin: 0;
  padding: 2px;
}

.board-thread-row {
  border-bottom: 1px dotted #808080;
  display: grid;
  gap: 2px;
  padding: 5px 6px;
}

.board-thread-row:nth-child(even) {
  background: #e8e8e8;
}

.board-thread-row:hover {
  background: #000080;
  color: #fff;
}

.board-thread-title {
  color: #000080;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.6;
  text-decoration: underline;
}

.board-thread-row:hover .board-thread-title,
.board-thread-row:hover .board-thread-meta {
  color: #fff;
}

.board-thread-meta {
  color: #404040;
  font-size: 12px;
}

.board-empty {
  background: #fff;
  border: 1px solid #808080;
  color: #000;
  font-size: 13px;
  margin: 0;
  padding: 8px;
}

.board-form {
  background: #c0c0c0;
  display: grid;
  gap: 7px;
  padding: 4px;
}

.board-form label {
  display: grid;
  gap: 3px;
}

.board-form label span {
  color: #000;
  font-size: 13px;
  font-weight: 400;
}

.board-form input,
.board-form select,
.board-form textarea {
  background: #ffffff;
  border-top: 2px solid #404040;
  border-left: 2px solid #404040;
  border-right: 2px solid #ffffff;
  border-bottom: 2px solid #ffffff;
  border-radius: 0;
  color: #000;
  font-family: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", system-ui, sans-serif;
  font-size: 14px;
  padding: 5px;
  width: 100%;
}

.board-form textarea {
  line-height: 1.75;
  resize: vertical;
}

.board-form button,
.board-submit {
  background: #c0c0c0;
  border-top: 2px solid #ffffff;
  border-left: 2px solid #ffffff;
  border-right: 2px solid #404040;
  border-bottom: 2px solid #404040;
  border-radius: 0;
  color: #000;
  cursor: pointer;
  font-family: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", system-ui, sans-serif;
  font-size: 13px;
  font-weight: 700;
  justify-self: start;
  padding: 6px 14px;
}

.board-form button:active,
.board-submit:active {
  border-top-color: #404040;
  border-left-color: #404040;
  border-right-color: #ffffff;
  border-bottom-color: #ffffff;
  padding: 7px 13px 5px 15px;
}

.board-register p,
.board-reply p,
.board-report p,
.board-login-box p,
.board-side-note li {
  color: #000;
  font-size: 13px;
  line-height: 1.75;
}

.board-register p,
.board-reply p,
.board-report p,
.board-login-box p {
  margin: 0 0 7px;
}

.board-login-box {
  border-top: 1px dotted #808080;
  margin-top: 10px;
  padding-top: 8px;
}

.board-report {
  margin-top: 8px;
}

.board-report h2 {
  background: #404040;
}

.board-report .board-form {
  gap: 5px;
}

.board-report textarea {
  min-height: 84px;
}

.board-admin-action {
  display: inline;
  margin: 0;
}

.board-delete-button {
  background: #c0c0c0;
  border-top: 2px solid #ffffff;
  border-left: 2px solid #ffffff;
  border-right: 2px solid #404040;
  border-bottom: 2px solid #404040;
  border-radius: 0;
  color: #800000;
  cursor: pointer;
  font-family: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", system-ui, sans-serif;
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
  padding: 3px 8px;
}

.board-delete-button:active {
  border-top-color: #404040;
  border-left-color: #404040;
  border-right-color: #ffffff;
  border-bottom-color: #ffffff;
  padding: 4px 7px 2px 9px;
}

.board-side-note ul {
  background: #fff;
  border-top: 2px solid #404040;
  border-left: 2px solid #404040;
  border-right: 2px solid #ffffff;
  border-bottom: 2px solid #ffffff;
  margin: 0;
  padding: 8px 8px 8px 22px;
}

.board-alert {
  background: #ffffe1;
  border: 1px solid #808080;
  color: #800000;
  padding: 6px;
}

.board-back {
  align-items: center;
  background: #c0c0c0;
  border-top: 2px solid #ffffff;
  border-left: 2px solid #ffffff;
  border-right: 2px solid #404040;
  border-bottom: 2px solid #404040;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: space-between;
  margin: 4px;
  padding: 5px 6px;
}

.board-res {
  border-bottom: 1px dotted #808080;
  padding: 8px;
}

.board-res:nth-child(even) {
  background: #e8e8e8;
}

.board-res-meta {
  color: #008000;
  display: flex;
  flex-wrap: wrap;
  font-size: 13px;
  gap: 8px;
  line-height: 1.5;
  margin-bottom: 6px;
}

.board-res-meta strong {
  color: #008000;
}

.board-res-body {
  color: #000;
  font-size: 14px;
  line-height: 1.8;
}

.board-res-body p {
  margin: 0 0 8px;
}

.board-res-body p:last-child {
  margin-bottom: 0;
}

.board-comment-form .form-submit {
  margin: 0;
}

.board-comment-form .comment-form-cookies-consent {
  align-items: center;
  display: flex;
  gap: 6px;
}

.board-comment-form .comment-form-cookies-consent input {
  width: auto;
}

.board-pagination {
  background: #c0c0c0;
  font-size: 13px;
  margin-top: 4px;
  padding: 4px;
}

.board-pagination a,
.board-pagination span {
  color: #000080;
  margin-right: 6px;
}

@media (max-width: 760px) {
  .board-main {
    min-height: calc(100vh - 40px);
    height: auto;
    overflow-x: hidden;
    overflow-y: visible;
    padding: 6px;
    width: 100%;
  }

  .board-shell {
    max-width: none;
    padding: 2px;
    width: 100%;
  }

  .board-kicker {
    font-size: 12px;
    padding: 5px 6px;
  }

  .board-free-banner {
    margin-bottom: 3px;
    padding: 7px;
  }

  .board-free-banner strong {
    font-size: 14px;
  }

  .board-head h1,
  .board-thread-head h1 {
    font-size: 19px;
    margin: 3px;
    padding: 7px;
  }

  .board-head p,
  .board-thread-head p {
    font-size: 13px;
    line-height: 1.7;
    margin: 3px;
    padding: 6px;
  }

  .board-rules,
  .board-tabs,
  .board-home-grid,
  .board-back {
    margin: 3px;
  }

  .board-rules-body {
    padding: 7px 8px;
  }

  .board-rules-body ul,
  .board-side-note ul {
    padding-left: 18px;
  }

  .board-tabs {
    display: grid;
    gap: 3px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .board-tabs a {
    display: block;
    margin: 0;
    padding: 8px 6px;
    text-align: center;
  }

  .board-list-head {
    align-items: stretch;
    display: grid;
    gap: 4px;
  }

  .board-home-grid {
    gap: 5px;
    grid-template-columns: 1fr;
  }

  .board-home-grid .board-list-wrap {
    border-right: 2px solid #404040;
  }

  .board-thread-row {
    padding: 7px 6px;
  }

  .board-thread-title {
    font-size: 14px;
    overflow-wrap: anywhere;
    word-break: break-word;
  }

  .board-thread-meta,
  .board-res-meta {
    font-size: 12px;
    gap: 5px;
  }

  .board-form {
    gap: 9px;
    padding: 5px;
  }

  .board-form input,
  .board-form select,
  .board-form textarea {
    font-size: 16px;
    min-height: 42px;
    padding: 7px;
  }

  .board-form textarea {
    min-height: 130px;
  }

  .board-form button,
  .board-submit {
    justify-self: stretch;
    min-height: 42px;
    text-align: center;
  }

  .board-res {
    padding: 9px 7px;
  }

  .board-res-body {
    font-size: 14px;
    overflow-wrap: anywhere;
  }
}

@media (max-width: 380px) {
  .board-tabs {
    grid-template-columns: 1fr;
  }

  .board-head h1,
  .board-thread-head h1 {
    font-size: 18px;
  }
}