:root {
  --ms-washi: #f8f3e7;
  --ms-washi-mid: #f5f0e6;
  --ms-washi-edge: #e9dfc8;
  --ms-ink: #241f1a;
  --ms-ink-soft: #57503f;
  --ms-ink-mute: #7b7361;
  --ms-gold: #c9a227;
  --ms-gold-deep: #a5811a;
  --ms-gold-light: #f2d98a;
  --ms-gold-pale: #fbf1cf;
  --ms-seal: #b73f2e;
  --ms-seal-soft: #cf5a44;
  --ms-serif: "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", "Noto Serif JP", "Noto Serif CJK JP", "Source Han Serif JP", "Songti SC", "Times New Roman", serif;
  --ms-sans: "Noto Sans JP", "Yu Gothic", Meiryo, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --ms-card-max: 640px;
}

.milestone-page {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(120% 80% at 50% 0%, #2b2721 0%, #171512 58%, #0e0c0a 100%);
  color: var(--ms-washi);
  font-family: var(--ms-sans);
}

.milestone-shell {
  max-width: 1120px;
  margin: 0 auto;
  padding: 84px 20px 72px;
}

.milestone-page-head {
  text-align: center;
  margin-bottom: 34px;
}

.milestone-back {
  display: inline-block;
  color: var(--ms-gold-light);
  text-decoration: none;
  font-size: 15px;
  letter-spacing: 0.04em;
  border-bottom: 1px solid rgba(242, 217, 138, 0.35);
  padding-bottom: 2px;
}

.milestone-page-head h1 {
  margin: 16px 0 8px;
  font-family: var(--ms-serif);
  font-size: clamp(28px, 4vw, 46px);
  font-weight: 600;
  letter-spacing: 0.14em;
}

.milestone-page-head p {
  margin: 0;
  color: #cfc7b6;
  font-size: 15px;
}

.milestone-loading {
  text-align: center;
  color: #cfc7b6;
}

/* --- 賞状カード ------------------------------------------------------- */

.milestone-card {
  position: relative;
  margin: 0 auto;
  max-width: var(--ms-card-max);
  padding: 46px 44px 30px;
  color: var(--ms-ink);
  text-align: center;
  /* 和紙: 生成りの地に、ごく淡い横の繊維と、四隅を落とす光を重ねる。 */
  background:
    radial-gradient(120% 70% at 50% 0%, rgba(255, 255, 255, 0.75) 0%, rgba(255, 255, 255, 0) 58%),
    radial-gradient(140% 120% at 50% 120%, rgba(201, 162, 39, 0.09) 0%, rgba(201, 162, 39, 0) 60%),
    repeating-linear-gradient(180deg, var(--ms-washi) 0 11px, var(--ms-washi-mid) 11px 12px);
  border: 3px solid var(--ms-gold);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.5) inset,
    0 0 0 9px var(--ms-washi) inset,
    0 0 0 10px rgba(201, 162, 39, 0.55) inset,
    0 30px 80px rgba(0, 0, 0, 0.5),
    0 2px 0 rgba(255, 255, 255, 0.35) inset;
}

.milestone-card.is-large {
  border-color: var(--ms-seal-soft);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.5) inset,
    0 0 0 9px var(--ms-washi) inset,
    0 0 0 10px rgba(183, 63, 46, 0.5) inset,
    0 30px 80px rgba(0, 0, 0, 0.5);
}

.milestone-frame {
  position: absolute;
  inset: 14px;
  pointer-events: none;
  border: 1px solid rgba(201, 162, 39, 0.6);
}

/* 花菱(四弁の飾り)。罫線の四隅に置く。 */
.milestone-corner {
  position: absolute;
  width: 20px;
  height: 20px;
  background: var(--ms-gold-light);
  border: 1px solid var(--ms-gold-deep);
  transform: rotate(45deg);
}
.milestone-corner::after {
  content: "";
  position: absolute;
  inset: 5px;
  background: var(--ms-gold);
  transform: rotate(45deg);
}
.milestone-corner.is-tl {
  top: -11px;
  left: -11px;
}
.milestone-corner.is-tr {
  top: -11px;
  right: -11px;
}
.milestone-corner.is-bl {
  bottom: -11px;
  left: -11px;
}
.milestone-corner.is-br {
  bottom: -11px;
  right: -11px;
}

.milestone-seal {
  width: 84px;
  height: 84px;
  margin: 2px auto 20px;
  border: 3px solid var(--ms-seal);
  border-radius: 50%;
  color: var(--ms-seal);
  font-family: var(--ms-serif);
  font-size: 46px;
  line-height: 78px;
  transform: rotate(-3deg);
  box-shadow:
    0 0 0 4px rgba(183, 63, 46, 0.08),
    0 0 0 1px rgba(183, 63, 46, 0.35) inset;
  background: radial-gradient(60% 60% at 32% 28%, rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0) 70%);
}

.milestone-label {
  margin: 0 0 16px;
  font-family: var(--ms-serif);
  font-size: clamp(24px, 3.6vw, 36px);
  font-weight: 600;
  letter-spacing: 0.16em;
  text-indent: 0.16em;
  color: var(--ms-ink);
}

.milestone-rule {
  position: relative;
  width: 220px;
  height: 1px;
  margin: 0 auto 26px;
  background: linear-gradient(90deg, transparent, var(--ms-gold) 18%, var(--ms-gold) 82%, transparent);
}
.milestone-rule-mark {
  position: absolute;
  top: -4px;
  left: 50%;
  width: 9px;
  height: 9px;
  margin-left: -4.5px;
  background: var(--ms-gold);
  transform: rotate(45deg);
}

.milestone-count {
  font-family: var(--ms-serif);
  font-size: clamp(56px, 13vw, 118px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.01em;
  font-variant-numeric: tabular-nums lining-nums;
  /* 金の箔: 明暗の縞を数字へ流し込む。 */
  background: linear-gradient(
    168deg,
    var(--ms-gold-deep) 0%,
    var(--ms-gold) 16%,
    var(--ms-gold-light) 34%,
    var(--ms-gold) 52%,
    var(--ms-gold-deep) 72%,
    var(--ms-gold) 100%
  );
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 1px 0 rgba(255, 255, 255, 0.5));
}

.milestone-count-note {
  margin: 10px 0 30px;
  font-family: var(--ms-serif);
  font-size: clamp(15px, 2.2vw, 20px);
  letter-spacing: 0.08em;
  color: var(--ms-ink-soft);
}

.milestone-invocation {
  margin: 0 0 10px;
  font-family: var(--ms-serif);
  font-size: clamp(17px, 2.5vw, 23px);
  letter-spacing: 0.1em;
  color: var(--ms-ink);
}

.milestone-body {
  margin: 0 auto 26px;
  max-width: 42em;
  font-size: 14.5px;
  line-height: 2;
  text-align: justify;
  color: var(--ms-ink-soft);
}

.milestone-representative {
  margin: 0 0 26px;
  padding: 18px 16px;
  border-top: 1px solid rgba(201, 162, 39, 0.45);
  border-bottom: 1px solid rgba(201, 162, 39, 0.45);
  background: linear-gradient(180deg, rgba(242, 217, 138, 0.16), rgba(242, 217, 138, 0.03));
}

.milestone-representative span {
  display: block;
  font-size: 11.5px;
  letter-spacing: 0.24em;
  text-indent: 0.24em;
  color: var(--ms-gold-deep);
}

.milestone-representative a {
  display: inline-block;
  margin-top: 8px;
  color: var(--ms-ink);
  font-family: var(--ms-serif);
  font-size: clamp(17px, 2.7vw, 23px);
  letter-spacing: 0.06em;
  text-decoration: none;
  border-bottom: 1px solid var(--ms-gold);
  padding-bottom: 2px;
}
.milestone-representative a:hover {
  color: var(--ms-gold-deep);
}

.milestone-artifacts {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  text-align: left;
  border-top: 1px solid rgba(36, 31, 26, 0.1);
}

.milestone-artifacts li {
  display: grid;
  grid-template-columns: 14px 6.2em minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  padding: 12px 2px;
  border-bottom: 1px solid rgba(36, 31, 26, 0.1);
  font-size: 14.5px;
}

.artifact-mark {
  width: 6px;
  height: 6px;
  background: var(--ms-gold);
  transform: rotate(45deg);
}

.artifact-kind {
  color: var(--ms-gold-deep);
  font-size: 12.5px;
  letter-spacing: 0.08em;
}

.artifact-title {
  color: var(--ms-ink);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.artifact-title:hover {
  border-bottom-color: var(--ms-gold);
}

.artifact-pending {
  color: var(--ms-ink-mute);
  font-size: 12.5px;
}

.milestone-free {
  display: inline-block;
  margin: 0 0 22px;
  padding: 8px 20px;
  border: 1px solid var(--ms-gold);
  border-radius: 999px;
  color: var(--ms-ink);
  font-size: 13px;
  letter-spacing: 0.06em;
  background: linear-gradient(180deg, var(--ms-gold-pale), rgba(242, 217, 138, 0.35));
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.6) inset;
}

.milestone-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 22px;
}

.milestone-actions a,
.milestone-actions button {
  padding: 12px 20px;
  border: 1px solid var(--ms-gold-deep);
  border-radius: 8px;
  background: linear-gradient(180deg, var(--ms-gold-light), var(--ms-gold));
  color: #231d10;
  font: inherit;
  font-size: 14px;
  letter-spacing: 0.04em;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.55) inset, 0 6px 14px rgba(120, 92, 12, 0.18);
  transition: transform 120ms ease, box-shadow 120ms ease, background 120ms ease;
}
.milestone-actions a:hover,
.milestone-actions button:hover {
  transform: translateY(-1px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.6) inset, 0 9px 18px rgba(120, 92, 12, 0.26);
}
.milestone-actions .is-ghost {
  background: rgba(255, 255, 255, 0.5);
  color: var(--ms-ink);
  box-shadow: none;
}
.milestone-actions .is-ghost:hover {
  background: var(--ms-gold-pale);
}
.milestone-actions :focus-visible,
.milestone-overlay-close:focus-visible,
.milestone-archive-list button:focus-visible {
  outline: 2px solid var(--ms-gold-deep);
  outline-offset: 2px;
}

.milestone-credit-rule {
  width: 100%;
  height: 1px;
  margin-bottom: 14px;
  background: linear-gradient(90deg, transparent, rgba(201, 162, 39, 0.65) 20%, rgba(201, 162, 39, 0.65) 80%, transparent);
}

.milestone-credit {
  margin: 0;
  color: var(--ms-ink-mute);
  font-size: 11.5px;
  line-height: 1.75;
  word-break: break-word;
}

.milestone-credit a {
  color: var(--ms-ink-mute);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 162, 39, 0.5);
}
.milestone-credit a:hover {
  color: var(--ms-gold-deep);
}

.milestone-related {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  text-align: center;
  font-size: 13px;
}

.milestone-related li {
  margin: 5px 0;
}

.milestone-related a {
  color: var(--ms-ink-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 162, 39, 0.5);
}

/* --- オーバーレイ ----------------------------------------------------- */

.milestone-overlay {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 28px 16px;
  overflow: auto;
  background: radial-gradient(120% 80% at 50% 0%, rgba(28, 24, 18, 0.72), rgba(8, 7, 6, 0.88));
  backdrop-filter: blur(4px);
}

.milestone-overlay[hidden] {
  display: none;
}

.milestone-overlay-card {
  position: relative;
  width: min(var(--ms-card-max), 100%);
  max-height: calc(100vh - 56px);
  overflow: auto;
  border-radius: 4px;
}

.milestone-overlay-card .milestone-card {
  animation: milestone-rise 460ms cubic-bezier(0.22, 1, 0.36, 1) both;
}
.milestone-overlay-card .milestone-corner {
  animation: milestone-corner 520ms cubic-bezier(0.22, 1, 0.36, 1) both;
}
.milestone-overlay-card .milestone-seal {
  animation: milestone-stamp 420ms cubic-bezier(0.2, 1.6, 0.4, 1) 160ms both;
}
.milestone-overlay-card .milestone-count {
  animation: milestone-foil 900ms ease-out 260ms both;
}

.milestone-overlay-close {
  /* 賞状の四隅の飾りと重ならないよう、画面の右上へ固定する。 */
  position: fixed;
  top: 18px;
  right: 18px;
  z-index: 3;
  width: 42px;
  height: 42px;
  border: 1px solid var(--ms-gold);
  border-radius: 50%;
  background: #1c1916;
  color: var(--ms-gold-light);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.45);
}
.milestone-overlay-close:hover {
  background: #2a251f;
}

@keyframes milestone-rise {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.992);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes milestone-corner {
  from {
    opacity: 0;
    transform: rotate(45deg) scale(0.3);
  }
  to {
    opacity: 1;
    transform: rotate(45deg) scale(1);
  }
}

@keyframes milestone-stamp {
  0% {
    opacity: 0;
    transform: rotate(-14deg) scale(1.5);
  }
  100% {
    opacity: 1;
    transform: rotate(-3deg) scale(1);
  }
}

@keyframes milestone-foil {
  from {
    opacity: 0;
    letter-spacing: 0.14em;
  }
  to {
    opacity: 1;
    letter-spacing: 0.01em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .milestone-overlay-card .milestone-card,
  .milestone-overlay-card .milestone-corner,
  .milestone-overlay-card .milestone-seal,
  .milestone-overlay-card .milestone-count {
    animation: none;
  }
}

/* --- 過去の記念回 ----------------------------------------------------- */

.milestone-archive {
  margin-top: 52px;
  border-top: 1px solid rgba(201, 162, 39, 0.35);
  padding-top: 24px;
}

.milestone-archive h2 {
  font-family: var(--ms-serif);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.12em;
  margin: 0 0 14px;
  text-align: center;
}

.milestone-archive-list {
  list-style: none;
  margin: 0 auto;
  padding: 0;
  max-width: var(--ms-card-max);
  display: grid;
  gap: 8px;
}

.milestone-archive-list button {
  width: 100%;
  padding: 13px 16px;
  border: 1px solid rgba(201, 162, 39, 0.4);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--ms-washi);
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: border-color 120ms ease, background 120ms ease;
}

.milestone-archive-list button:hover {
  border-color: var(--ms-gold);
  background: rgba(242, 217, 138, 0.1);
}

.milestone-archive-list button[aria-current="true"] {
  border-color: var(--ms-gold);
  background: rgba(242, 217, 138, 0.16);
}

.milestone-archive-list small {
  display: block;
  margin-top: 4px;
  color: #bdb4a3;
}

@media (max-width: 640px) {
  .milestone-shell {
    padding: 72px 14px 56px;
  }
  .milestone-card {
    padding: 34px 20px 26px;
  }
  .milestone-frame {
    inset: 10px;
  }
  .milestone-corner {
    width: 15px;
    height: 15px;
  }
  .milestone-corner::after {
    inset: 4px;
  }
  .milestone-corner.is-tl,
  .milestone-corner.is-tr,
  .milestone-corner.is-bl,
  .milestone-corner.is-br {
    --corner-offset: -8px;
  }
  .milestone-corner.is-tl { top: -8px; left: -8px; }
  .milestone-corner.is-tr { top: -8px; right: -8px; }
  .milestone-corner.is-bl { bottom: -8px; left: -8px; }
  .milestone-corner.is-br { bottom: -8px; right: -8px; }
  .milestone-artifacts li {
    grid-template-columns: 12px 5.4em minmax(0, 1fr);
    gap: 8px;
  }
  .milestone-overlay {
    align-items: flex-start;
    padding: 52px 12px 24px;
  }
  .milestone-overlay-close {
    top: 12px;
    right: 12px;
    width: 38px;
    height: 38px;
  }
  .milestone-body {
    text-align: left;
  }
}

/* 画像として保存する時と同じ見え方にするため、印刷では賞状だけを出す。 */
@media print {
  .milestone-page {
    background: #fff;
    color: #000;
  }
  .milestone-page-head,
  .milestone-archive,
  .milestone-actions,
  .ms-menu-toggle {
    display: none !important;
  }
  .milestone-card {
    box-shadow: none;
    border-color: var(--ms-gold-deep);
  }
}