.achievement-header-button {
  isolation: isolate;
  overflow: visible;
}

.achievement-header-visual {
  position: absolute;
  inset: 0;
  z-index: 0;
  display: grid;
  overflow: hidden;
  place-items: center;
  border-radius: inherit;
  pointer-events: none;
}

.achievement-header-visual::before {
  position: absolute;
  top: -18%;
  left: -46%;
  z-index: 0;
  width: 34%;
  height: 136%;
  background: linear-gradient(90deg, transparent, rgba(224, 228, 236, 0.13), transparent);
  content: "";
  opacity: 0;
  pointer-events: none;
  transform: translateX(-170%) skewX(-18deg);
}

.achievement-header-visual i {
  position: relative;
  z-index: 1;
  color: #74777e;
  font-size: 20px;
  transform-origin: 50% 72%;
  transition: color 0.2s ease;
}

.achievement-header-button:hover .achievement-header-visual i,
.achievement-header-button:focus-visible .achievement-header-visual i {
  color: #74777e;
  animation: achievementHeaderEarned 0.62s cubic-bezier(0.16, 1, 0.3, 1);
}

.achievement-header-button:hover .achievement-header-visual::before,
.achievement-header-button:focus-visible .achievement-header-visual::before {
  animation: achievementHeaderSweep 0.72s ease-out;
}

.achievement-header-button .hx-count {
  min-width: 17px;
  padding: 0 4px;
  z-index: 7;
}

.achievement-toast-region {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 10020;
  display: flex;
  width: min(390px, calc(100vw - 28px));
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.achievement-toast {
  --toast-rarity: #f8e71c;
  position: relative;
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr) auto;
  align-items: center;
  gap: 13px;
  min-height: 88px;
  padding: 14px 15px 14px 13px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-left: 3px solid var(--toast-rarity);
  border-radius: 6px;
  color: #fff;
  background:
    linear-gradient(110deg, color-mix(in srgb, var(--toast-rarity) 9%, transparent), transparent 46%),
    linear-gradient(145deg, #1a1a1a, #101010 74%);
  opacity: 0;
  pointer-events: auto;
  text-decoration: none;
  transform: translateX(28px);
  transition: opacity 0.32s ease, transform 0.42s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.2s ease;
}

.achievement-toast.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.achievement-toast:hover {
  border-color: color-mix(in srgb, var(--toast-rarity) 55%, rgba(255, 255, 255, 0.14));
}

.achievement-toast[data-rarity="common"] { --toast-rarity: #b7b7b7; }
.achievement-toast[data-rarity="uncommon"] { --toast-rarity: #65d5a6; }
.achievement-toast[data-rarity="rare"] { --toast-rarity: #62a7ff; }
.achievement-toast[data-rarity="epic"] { --toast-rarity: #d886ff; }
.achievement-toast[data-rarity="legendary"] { --toast-rarity: #f8e71c; }

.achievement-toast-icon {
  display: grid;
  width: 54px;
  height: 54px;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--toast-rarity) 55%, transparent);
  border-radius: 5px;
  color: var(--toast-rarity);
  background: linear-gradient(145deg, color-mix(in srgb, var(--toast-rarity) 12%, #151515), #111);
  font-size: 25px;
}

.achievement-toast-copy {
  min-width: 0;
}

.achievement-toast-copy > span {
  display: block;
  margin-bottom: 3px;
  color: var(--toast-rarity);
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.achievement-toast-copy strong {
  display: block;
  overflow: hidden;
  color: #fff;
  font-size: 14px;
  font-weight: 800;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.achievement-toast-copy p {
  display: -webkit-box;
  margin: 4px 0 0;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  color: #8b8b8b;
  font-size: 10px;
  line-height: 1.45;
}

.achievement-toast-points {
  align-self: flex-start;
  color: #777;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.achievement-toast-progress {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 2px;
  background: rgba(255, 255, 255, 0.06);
}

.achievement-toast-progress span {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--toast-rarity);
  transform-origin: left;
  animation: achievementToastTimer 18s linear forwards;
}

body.language-convergence-active {
  overflow: hidden;
}

.language-convergence {
  position: fixed;
  z-index: 10080;
  inset: 0;
  display: grid;
  overflow: hidden;
  place-items: center;
  background:
    radial-gradient(circle at center, rgba(248, 231, 28, 0.14), transparent 25%),
    linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    radial-gradient(circle at center, #161616 0, #080808 58%, #020202 100%);
  background-size: auto, 44px 44px, 44px 44px, auto;
  opacity: 0;
  pointer-events: all;
  transition: opacity 0.45s ease;
}

.language-convergence::before,
.language-convergence::after {
  position: absolute;
  inset: -30%;
  content: "";
  pointer-events: none;
}

.language-convergence::before {
  background: repeating-conic-gradient(from 0deg at center, rgba(248, 231, 28, 0.03) 0 1deg, transparent 1deg 12deg);
  animation: languageConvergenceField 14s linear infinite;
}

.language-convergence::after {
  background: linear-gradient(110deg, transparent 35%, rgba(255, 255, 255, 0.08) 48%, transparent 61%);
  opacity: 0;
  transform: translateX(-55%);
}

.language-convergence.is-running {
  opacity: 1;
}

.language-convergence.is-running::after {
  animation: languageConvergenceSweep 1.35s 1.35s ease-out both;
}

.language-convergence.is-leaving {
  opacity: 0;
}

.language-convergence-stage {
  position: relative;
  width: min(760px, 94vw);
  height: min(650px, 90vh);
}

.language-convergence-halo,
.language-convergence-flags,
.language-convergence-sparks,
.language-convergence-banner {
  position: absolute;
  top: 50%;
  left: 50%;
}

.language-convergence-halo {
  width: min(520px, 78vw);
  aspect-ratio: 1;
  border: 1px solid rgba(248, 231, 28, 0.18);
  border-radius: 50%;
  opacity: 0;
  box-shadow: inset 0 0 90px rgba(248, 231, 28, 0.07), 0 0 110px rgba(248, 231, 28, 0.08);
  transform: translate(-50%, -50%) scale(0.65);
}

.language-convergence-halo::before,
.language-convergence-halo::after {
  position: absolute;
  border-radius: inherit;
  content: "";
}

.language-convergence-halo::before {
  inset: 8%;
  border: 1px dashed rgba(255, 255, 255, 0.19);
}

.language-convergence-halo::after {
  inset: 22%;
  border: 1px solid rgba(248, 231, 28, 0.58);
  box-shadow: 0 0 28px rgba(248, 231, 28, 0.2);
}

.language-convergence.is-running .language-convergence-halo {
  animation: languageConvergenceHalo 3.4s 0.25s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.language-convergence-flags,
.language-convergence-sparks {
  width: 1px;
  height: 1px;
}

.language-convergence-flag {
  --language-start-x: -42vw;
  --language-start-y: -34vh;
  --language-start-rotation: -28deg;
  --language-orbit-x: -190px;
  --language-orbit-y: -118px;
  --language-delay: 0s;
  position: absolute;
  display: grid;
  width: 86px;
  height: 60px;
  place-items: center;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 8px;
  background: #111;
  box-shadow: 0 14px 45px rgba(0, 0, 0, 0.5), 0 0 22px rgba(248, 231, 28, 0.12);
  opacity: 0;
  transform: translate(var(--language-start-x), var(--language-start-y)) rotate(var(--language-start-rotation)) scale(0.55);
}

.language-convergence-flag:nth-child(2) { --language-start-x: 42vw; --language-start-y: -31vh; --language-start-rotation: 31deg; --language-orbit-x: 190px; --language-orbit-y: -118px; --language-delay: 0.08s; }
.language-convergence-flag:nth-child(3) { --language-start-x: -45vw; --language-start-y: 28vh; --language-start-rotation: 24deg; --language-orbit-x: -220px; --language-orbit-y: 76px; --language-delay: 0.16s; }
.language-convergence-flag:nth-child(4) { --language-start-x: 44vw; --language-start-y: 30vh; --language-start-rotation: -34deg; --language-orbit-x: 220px; --language-orbit-y: 76px; --language-delay: 0.24s; }
.language-convergence-flag:nth-child(5) { --language-start-x: 0; --language-start-y: 45vh; --language-start-rotation: 12deg; --language-orbit-x: 0; --language-orbit-y: 205px; --language-delay: 0.32s; }

.language-convergence-flag img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.language-convergence-flag small {
  position: absolute;
  right: 4px;
  bottom: 3px;
  padding: 2px 4px;
  border-radius: 3px;
  color: #111;
  background: #f8e71c;
  font-size: 7px;
  font-weight: 950;
  letter-spacing: 0.12em;
}

.language-convergence.is-running .language-convergence-flag {
  animation: languageFlagConverge 2.15s var(--language-delay) cubic-bezier(0.16, 0.86, 0.23, 1) both;
}

.language-convergence-sparks span {
  position: absolute;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #f8e71c;
  box-shadow: 0 0 12px rgba(248, 231, 28, 0.95);
  opacity: 0;
}

.language-convergence.is-running .language-convergence-sparks span {
  animation: languageConvergenceSpark 1.15s calc(1.48s + var(--language-spark-delay)) ease-out both;
}

.language-convergence-banner {
  z-index: 4;
  display: flex;
  width: min(560px, 90vw);
  align-items: center;
  flex-direction: column;
  justify-content: center;
  gap: 18px;
  color: #fff;
  opacity: 0;
  text-align: center;
  transform: translate(-50%, -50%) scale(0.72);
}

.language-convergence-standard {
  position: relative;
  display: grid;
  width: min(430px, 82vw);
  aspect-ratio: 1.72;
  place-items: center;
  overflow: hidden;
  border: 1px solid rgba(248, 231, 28, 0.62);
  border-radius: 18px;
  background:
    linear-gradient(115deg, transparent 0 42%, rgba(255, 255, 255, 0.085) 49%, transparent 56%),
    linear-gradient(145deg, rgba(248, 231, 28, 0.13), transparent 38%),
    linear-gradient(155deg, #1b1b1b 0 54%, #0b0b0b 54% 100%);
  box-shadow: 0 30px 100px rgba(0, 0, 0, 0.72), 0 0 78px rgba(248, 231, 28, 0.16), inset 0 0 54px rgba(248, 231, 28, 0.04);
  transform-origin: center;
}

.language-convergence-standard::before,
.language-convergence-standard::after {
  position: absolute;
  content: "";
  pointer-events: none;
}

.language-convergence-standard::before {
  inset: 10px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  background:
    linear-gradient(135deg, transparent 0 47%, rgba(248, 231, 28, 0.06) 47% 53%, transparent 53%),
    repeating-linear-gradient(90deg, transparent 0 42px, rgba(255, 255, 255, 0.018) 42px 43px);
}

.language-convergence-standard::after {
  inset: 0;
  border-top: 4px solid #f8e71c;
  border-bottom: 2px solid rgba(248, 231, 28, 0.42);
  border-radius: inherit;
}

.language-convergence.is-running .language-convergence-banner {
  animation: languageBannerMerge 2.4s 1.72s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.language-convergence.is-running .language-convergence-standard {
  animation: languageStandardSettle 2.4s 1.72s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.language-convergence-standard-kicker {
  position: absolute;
  top: 25px;
  left: 50%;
  color: rgba(255, 255, 255, 0.54);
  font-size: 8px;
  font-weight: 900;
  letter-spacing: 0.32em;
  text-indent: 0.32em;
  transform: translateX(-50%);
  white-space: nowrap;
}

.language-convergence-crest {
  position: relative;
  display: grid;
  width: 126px;
  height: 126px;
  place-items: center;
  border: 1px solid rgba(248, 231, 28, 0.46);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(248, 231, 28, 0.1), rgba(0, 0, 0, 0.64) 69%);
  box-shadow: 0 0 42px rgba(248, 231, 28, 0.17), inset 0 0 24px rgba(248, 231, 28, 0.045);
}

.language-convergence-crest::before {
  position: absolute;
  inset: -8px;
  border: 1px dashed rgba(248, 231, 28, 0.28);
  border-radius: inherit;
  content: "";
  animation: languageLogoOrbit 9s linear infinite;
}

.language-convergence-crest img {
  position: relative;
  z-index: 2;
  width: 96px;
  max-height: 104px;
  object-fit: contain;
  filter: drop-shadow(0 0 16px rgba(248, 231, 28, 0.32));
}

.language-convergence-standard-foot {
  position: absolute;
  right: 27px;
  bottom: 23px;
  left: 27px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 13px;
  color: rgba(255, 255, 255, 0.58);
  font-size: 8px;
  font-style: normal;
  font-weight: 900;
  letter-spacing: 0.22em;
}

.language-convergence-standard-foot i {
  width: 58px;
  height: 1px;
  background: linear-gradient(90deg, transparent, #f8e71c, transparent);
}

.language-convergence-brandline {
  display: flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  white-space: nowrap;
}

.language-convergence-powered {
  color: #858585;
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.28em;
}

.language-convergence-brand-logo {
  width: 27px;
  height: 31px;
  object-fit: contain;
  filter: drop-shadow(0 0 9px rgba(248, 231, 28, 0.32));
}

.language-convergence-brand {
  color: #fff;
  font-family: BigNoodleTitling, "Sora", sans-serif;
  font-size: clamp(34px, 6vw, 50px);
  font-weight: 400;
  letter-spacing: 0.045em;
  line-height: 1;
  text-shadow: 0 0 28px rgba(248, 231, 28, 0.14);
}

.language-convergence-signal {
  display: grid;
  gap: 5px;
  place-items: center;
  color: #f8e71c;
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.24em;
  text-indent: 0.24em;
}

.language-convergence-signal small {
  color: #696969;
  font-size: 7px;
  letter-spacing: 0.2em;
}

@keyframes languageConvergenceField { to { transform: rotate(360deg); } }
@keyframes languageConvergenceSweep {
  0% { opacity: 0; transform: translateX(-55%); }
  28% { opacity: 1; }
  100% { opacity: 0; transform: translateX(55%); }
}
@keyframes languageConvergenceHalo {
  0% { opacity: 0; transform: translate(-50%, -50%) scale(0.55) rotate(0); }
  22% { opacity: 1; }
  72% { opacity: 0.9; transform: translate(-50%, -50%) scale(1) rotate(220deg); }
  100% { opacity: 0; transform: translate(-50%, -50%) scale(1.35) rotate(360deg); }
}
@keyframes languageFlagConverge {
  0% { opacity: 0; transform: translate(var(--language-start-x), var(--language-start-y)) rotate(var(--language-start-rotation)) scale(0.55); }
  18% { opacity: 1; }
  52% { opacity: 1; transform: translate(var(--language-orbit-x), var(--language-orbit-y)) rotate(0deg) scale(1); }
  74% { opacity: 1; transform: translate(var(--language-orbit-x), var(--language-orbit-y)) rotate(14deg) scale(0.92); filter: brightness(1.15); }
  92% { opacity: 1; transform: translate(0, 0) rotate(0deg) scale(0.5); filter: brightness(2.2); }
  100% { opacity: 0; transform: translate(0, 0) rotate(0deg) scale(0.04); filter: brightness(4); }
}
@keyframes languageConvergenceSpark {
  0% { opacity: 0; transform: translate(0, 0) scale(0.2); }
  16% { opacity: 1; }
  100% { opacity: 0; transform: translate(var(--language-spark-x), var(--language-spark-y)) scale(0); }
}
@keyframes languageBannerMerge {
  0% { opacity: 0; transform: translate(-50%, -50%) scale(0.7); filter: brightness(2.8); }
  16% { opacity: 1; transform: translate(-50%, -50%) scale(1.055); filter: brightness(1.55); }
  34%, 100% { opacity: 1; transform: translate(-50%, -50%) scale(1); filter: brightness(1); }
}
@keyframes languageStandardSettle {
  0% { transform: perspective(900px) rotateY(-28deg) rotateX(12deg) scale(0.72); }
  24% { transform: perspective(900px) rotateY(4deg) rotateX(-2deg) scale(1.03); }
  42%, 100% { transform: perspective(900px) rotateY(0) rotateX(0) scale(1); }
}
@keyframes languageLogoOrbit { to { transform: rotate(360deg); } }

.achievement-page {
  --ach-yellow: #f8e71c;
  --ach-copy: #fff;
  --ach-muted: #858585;
  --ach-surface: #171717;
  --ach-deep: #101010;
  --ach-line: rgba(255, 255, 255, 0.09);
  --ach-line-strong: rgba(255, 255, 255, 0.16);
  display: grid;
  gap: 20px;
  min-height: calc(100vh - 131px);
  padding-bottom: 20px;
}

.achievement-shell.body-bg::before {
  display: none;
}

.achievement-hero,
.achievement-library {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--ach-line);
  border-radius: 6px;
  background: linear-gradient(142deg, #191919, #101010 72%);
}

.achievement-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(380px, 0.65fr);
  min-height: 294px;
  background:
    linear-gradient(108deg, rgba(248, 231, 28, 0.105), transparent 39%),
    linear-gradient(142deg, #191919, #0f0f0f 72%);
}

.achievement-hero::before {
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--ach-yellow);
  content: "";
}

.achievement-hero::after {
  position: absolute;
  top: -90px;
  right: 23%;
  width: 160px;
  height: 470px;
  background: repeating-linear-gradient(90deg, transparent 0 13px, rgba(255, 255, 255, 0.025) 13px 14px);
  content: "";
  pointer-events: none;
  transform: rotate(20deg);
}

.achievement-hero-copy,
.achievement-summary {
  position: relative;
  z-index: 1;
}

.achievement-hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 38px 40px;
}

.achievement-kicker,
.achievement-library-heading > div > span {
  color: var(--ach-yellow);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.23em;
  text-transform: uppercase;
}

.achievement-hero h1 {
  margin: 9px 0 12px;
  color: var(--ach-copy);
  font-size: clamp(40px, 5vw, 64px);
  font-weight: 850;
  letter-spacing: -0.055em;
  line-height: 0.94;
}

.achievement-hero-copy > p {
  max-width: 760px;
  margin: 0;
  color: #969696;
  font-size: 13px;
  line-height: 1.75;
}

.achievement-sound-toggle {
  display: inline-grid;
  grid-template-columns: 34px auto 36px;
  align-items: center;
  gap: 10px;
  width: fit-content;
  margin-top: 24px;
  padding: 9px 11px;
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 5px;
  color: #fff;
  background: rgba(9, 9, 9, 0.5);
  text-align: left;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.achievement-sound-toggle:hover,
.achievement-sound-toggle:focus-visible {
  border-color: rgba(248, 231, 28, 0.42);
  outline: 0;
  background: rgba(248, 231, 28, 0.045);
}

.achievement-sound-toggle > i {
  color: var(--ach-yellow);
  font-size: 19px;
  text-align: center;
}

.achievement-sound-toggle > span {
  display: grid;
  gap: 1px;
}

.achievement-sound-toggle small {
  color: #707070;
  font-size: 8px;
  font-weight: 900;
  letter-spacing: 0.15em;
}

.achievement-sound-toggle b {
  color: #d8d8d8;
  font-size: 11px;
  font-weight: 700;
}

.achievement-sound-toggle em {
  position: relative;
  width: 36px;
  height: 20px;
  border: 1px solid rgba(248, 231, 28, 0.45);
  border-radius: 20px;
  background: rgba(248, 231, 28, 0.12);
}

.achievement-sound-toggle em span {
  position: absolute;
  top: 3px;
  left: 18px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--ach-yellow);
  transition: left 0.22s ease, background 0.22s ease;
}

.achievement-sound-toggle[aria-checked="false"] em {
  border-color: rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.04);
}

.achievement-sound-toggle[aria-checked="false"] em span {
  left: 4px;
  background: #6a6a6a;
}

.achievement-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-content: center;
  gap: 1px;
  padding: 36px;
  border-left: 1px solid rgba(255, 255, 255, 0.07);
  background: rgba(9, 9, 9, 0.42);
}

.achievement-summary article {
  min-width: 0;
  padding: 18px 13px;
  border: 1px solid rgba(255, 255, 255, 0.075);
  background: rgba(255, 255, 255, 0.018);
}

.achievement-summary article > span {
  display: block;
  margin-bottom: 8px;
  color: #707070;
  font-size: 8px;
  font-weight: 900;
  letter-spacing: 0.16em;
}

.achievement-summary strong {
  display: flex;
  align-items: baseline;
  gap: 4px;
  color: #fff;
  font-size: 27px;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.achievement-summary strong b {
  color: var(--ach-yellow);
}

.achievement-summary strong small {
  color: #696969;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0;
}

.achievement-summary-track {
  grid-column: 1 / -1;
  height: 5px;
  margin-top: 13px;
  overflow: hidden;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.065);
}

.achievement-summary-track span,
.achievement-card-progress span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, #cdbd00, #f8e71c, #fff36a);
  transition: width 0.75s cubic-bezier(0.16, 1, 0.3, 1);
}

.achievement-library {
  padding: 28px;
}

.achievement-library-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 22px;
}

.achievement-library-heading h2 {
  margin: 6px 0 0;
  color: #fff;
  font-size: 25px;
  font-weight: 800;
  letter-spacing: -0.035em;
}

.achievement-library-heading p {
  max-width: 570px;
  margin: 0;
  color: #818181;
  font-size: 11px;
  line-height: 1.65;
  text-align: right;
}

.achievement-filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.achievement-filter-row button {
  min-height: 34px;
  padding: 0 15px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 4px;
  color: #858585;
  background: #121212;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.05em;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

.achievement-filter-row button:hover,
.achievement-filter-row button:focus-visible {
  border-color: rgba(248, 231, 28, 0.36);
  outline: 0;
  color: #d7d7d7;
}

.achievement-filter-row button.is-active {
  border-color: var(--ach-yellow);
  color: #111;
  background: var(--ach-yellow);
}

.achievement-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.achievement-card {
  --rarity: #b7b7b7;
  position: relative;
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 15px;
  min-height: 184px;
  padding: 18px;
  overflow: hidden;
  border: 1px solid var(--ach-line);
  border-left: 3px solid var(--rarity);
  border-radius: 5px;
  background:
    linear-gradient(118deg, color-mix(in srgb, var(--rarity) 5%, transparent), transparent 42%),
    linear-gradient(145deg, #181818, #111 72%);
  opacity: 0;
  transform: translateY(10px);
  animation: achievementCardReveal 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.achievement-card[data-rarity="common"] { --rarity: #b7b7b7; }
.achievement-card[data-rarity="uncommon"] { --rarity: #65d5a6; }
.achievement-card[data-rarity="rare"] { --rarity: #62a7ff; }
.achievement-card[data-rarity="epic"] { --rarity: #d886ff; }
.achievement-card[data-rarity="legendary"] { --rarity: #f8e71c; }

.achievement-card.is-locked {
  --rarity: #565656;
  background: linear-gradient(145deg, #151515, #101010 72%);
}

.achievement-card-icon {
  display: grid;
  width: 62px;
  height: 62px;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--rarity) 42%, transparent);
  border-radius: 5px;
  color: var(--rarity);
  background: linear-gradient(145deg, color-mix(in srgb, var(--rarity) 10%, #151515), #111);
  font-size: 27px;
}

.achievement-card.is-locked .achievement-card-icon {
  color: #616161;
}

.achievement-card-body {
  display: flex;
  min-width: 0;
  flex-direction: column;
}

.achievement-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 6px;
}

.achievement-card-meta span {
  color: var(--rarity);
  font-size: 8px;
  font-weight: 900;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.achievement-card-meta b {
  color: #717171;
  font-size: 9px;
  font-weight: 800;
  white-space: nowrap;
}

.achievement-card h3 {
  margin: 0 0 6px;
  color: #efefef;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.achievement-card p {
  display: -webkit-box;
  margin: 0;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  color: #818181;
  font-size: 10px;
  line-height: 1.55;
}

.achievement-card-footer {
  margin-top: auto;
  padding-top: 14px;
}

.achievement-card-progress-copy {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 6px;
  color: #656565;
  font-size: 8px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.achievement-card.is-unlocked .achievement-card-progress-copy span:first-child {
  color: var(--rarity);
}

.achievement-card-progress {
  height: 4px;
  overflow: hidden;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.065);
}

.achievement-card-progress span {
  background: var(--rarity);
}

.achievement-loading,
.achievement-empty,
.achievement-error {
  grid-column: 1 / -1;
  min-height: 180px;
  border: 1px dashed rgba(255, 255, 255, 0.1);
  border-radius: 5px;
  color: #747474;
  background: #111;
  font-size: 11px;
}

.achievement-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.achievement-loading i {
  color: var(--ach-yellow);
  animation: achievementSpin 1s linear infinite;
}

.achievement-empty,
.achievement-error {
  display: grid;
  place-items: center;
  padding: 30px;
  text-align: center;
}

@keyframes achievementToastTimer {
  to { transform: scaleX(0); }
}

@keyframes achievementHeaderEarned {
  0%, 100% { transform: translateY(0) scale(1); }
  34% { transform: translateY(-2px) scale(1.09); }
  56% { transform: translateY(1px) scale(0.97); }
  76% { transform: translateY(-0.5px) scale(1.025); }
}

@keyframes achievementHeaderSweep {
  0% { opacity: 0; transform: translateX(-170%) skewX(-18deg); }
  22% { opacity: 1; }
  100% { opacity: 0; transform: translateX(520%) skewX(-18deg); }
}

@keyframes achievementCardReveal {
  to { opacity: 1; transform: translateY(0); }
}

@keyframes achievementSpin {
  to { transform: rotate(360deg); }
}

@media (max-width: 1280px) {
  .achievement-hero {
    grid-template-columns: minmax(0, 1fr) minmax(330px, 0.75fr);
  }

  .achievement-summary {
    grid-template-columns: 1fr;
  }

  .achievement-summary-track {
    grid-column: auto;
  }

  .achievement-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 860px) {
  .achievement-hero {
    grid-template-columns: 1fr;
  }

  .achievement-summary {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    padding: 22px;
    border-top: 1px solid rgba(255, 255, 255, 0.07);
    border-left: 0;
  }

  .achievement-summary-track {
    grid-column: 1 / -1;
  }

  .achievement-library-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .achievement-library-heading p {
    text-align: left;
  }
}

@media (max-width: 640px) {
  .achievement-toast-region {
    right: 14px;
    bottom: 14px;
    left: 14px;
    width: auto;
  }

  .achievement-toast {
    grid-template-columns: 46px minmax(0, 1fr);
    min-height: 80px;
  }

  .achievement-toast-icon {
    width: 46px;
    height: 46px;
    font-size: 22px;
  }

  .achievement-toast-points {
    display: none;
  }

  .achievement-hero-copy {
    padding: 30px 24px;
  }

  .achievement-hero h1 {
    font-size: 43px;
  }

  .achievement-summary {
    grid-template-columns: 1fr;
    padding: 18px 24px 24px;
  }

  .achievement-summary-track {
    grid-column: auto;
  }

  .achievement-library {
    padding: 23px 18px;
  }

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

  .achievement-card {
    grid-template-columns: 52px minmax(0, 1fr);
    padding: 15px;
  }

  .achievement-card-icon {
    width: 52px;
    height: 52px;
    font-size: 23px;
  }
}

@media (max-width: 640px) {
  .language-convergence-stage {
    width: 100vw;
    height: 100vh;
  }

  .language-convergence-flag {
    width: 64px;
    height: 45px;
  }

  .language-convergence-flag:nth-child(1) { --language-orbit-x: -118px; --language-orbit-y: -142px; }
  .language-convergence-flag:nth-child(2) { --language-orbit-x: 118px; --language-orbit-y: -142px; }
  .language-convergence-flag:nth-child(3) { --language-orbit-x: -135px; --language-orbit-y: 54px; }
  .language-convergence-flag:nth-child(4) { --language-orbit-x: 135px; --language-orbit-y: 54px; }
  .language-convergence-flag:nth-child(5) { --language-orbit-x: 0; --language-orbit-y: 148px; }

  .language-convergence-banner {
    width: 94vw;
    gap: 14px;
  }

  .language-convergence-standard {
    width: 86vw;
    border-radius: 14px;
  }

  .language-convergence-standard-kicker {
    top: 18px;
    font-size: 7px;
  }

  .language-convergence-crest {
    width: 94px;
    height: 94px;
  }

  .language-convergence-crest img {
    width: 72px;
    max-height: 78px;
  }

  .language-convergence-standard-foot {
    bottom: 17px;
  }

  .language-convergence-brandline {
    min-height: 34px;
    gap: 7px;
  }

  .language-convergence-powered {
    font-size: 7px;
    letter-spacing: 0.19em;
  }

  .language-convergence-brand-logo {
    width: 21px;
    height: 25px;
  }

  .language-convergence-brand {
    font-size: clamp(28px, 9.5vw, 39px);
  }

  .language-convergence-signal {
    font-size: 8px;
    letter-spacing: 0.18em;
    text-indent: 0.18em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .achievement-toast,
  .achievement-header-visual i,
  .achievement-header-visual::before,
  .achievement-summary-track span,
  .achievement-card-progress span,
  .achievement-sound-toggle em span {
    transition: none;
  }

  .achievement-card,
  .achievement-loading i,
  .achievement-header-button:hover .achievement-header-visual i,
  .achievement-header-button:focus-visible .achievement-header-visual i,
  .achievement-header-button:hover .achievement-header-visual::before,
  .achievement-header-button:focus-visible .achievement-header-visual::before,
  .achievement-toast-progress span {
    animation: none;
  }

  .achievement-card {
    opacity: 1;
    transform: none;
  }

  .language-convergence::before,
  .language-convergence::after,
  .language-convergence-halo,
  .language-convergence-flag,
  .language-convergence-sparks span,
  .language-convergence-banner,
  .language-convergence-standard,
  .language-convergence-crest::before {
    animation: none !important;
  }

  .language-convergence-flag,
  .language-convergence-sparks {
    display: none;
  }

  .language-convergence.is-running .language-convergence-halo {
    opacity: 0.35;
    transform: translate(-50%, -50%) scale(1);
  }

  .language-convergence.is-running .language-convergence-banner {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
  }

  .language-convergence.is-running .language-convergence-standard {
    transform: none;
  }
}