/* Shared grade loader — editorial ring with italic g */

.grade-loader {
  --loader-size: 48px;
  --loader-thickness: 3px;
  position: relative;
  width: var(--loader-size);
  height: var(--loader-size);
  flex-shrink: 0;
  display: inline-block;
}

.grade-loader::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(
    from 0deg,
    transparent 0deg 40deg,
    var(--accent) 40deg 130deg,
    var(--excellent) 130deg 220deg,
    rgba(17, 20, 15, 0.18) 220deg 300deg,
    transparent 300deg 360deg
  );
  -webkit-mask: radial-gradient(
    farthest-side,
    transparent calc(100% - var(--loader-thickness)),
    #000 calc(100% - var(--loader-thickness))
  );
  mask: radial-gradient(
    farthest-side,
    transparent calc(100% - var(--loader-thickness)),
    #000 calc(100% - var(--loader-thickness))
  );
  animation: grade-loader-spin 1.15s cubic-bezier(0.45, 0.05, 0.55, 0.95) infinite;
}

.grade-loader::after {
  content: "";
  position: absolute;
  inset: calc(var(--loader-thickness) + 3px);
  border-radius: 50%;
  background: var(--paper);
  box-shadow: inset 0 0 0 1px rgba(17, 20, 15, 0.07);
}

.grade-loader__g {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: calc(var(--loader-size) * 0.36);
  line-height: 1;
  color: var(--accent);
  letter-spacing: -0.04em;
  animation: grade-loader-breathe 2.4s ease-in-out infinite;
}

.grade-loader__orbit {
  position: absolute;
  inset: 0;
  z-index: 2;
  animation: grade-loader-spin 1.8s linear infinite reverse;
  pointer-events: none;
}
.grade-loader__orbit::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: 5px;
  height: 5px;
  margin-left: -2.5px;
  margin-top: -1px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 2px rgba(156, 42, 47, 0.15);
}

/* Sizes */
.grade-loader--xs {
  --loader-size: 18px;
  --loader-thickness: 2px;
}
.grade-loader--xs .grade-loader__g,
.grade-loader--xs .grade-loader__orbit { display: none; }

.grade-loader--sm {
  --loader-size: 20px;
  --loader-thickness: 2px;
}
.grade-loader--sm .grade-loader__g,
.grade-loader--sm .grade-loader__orbit { display: none; }

.grade-loader--md {
  --loader-size: 56px;
  --loader-thickness: 3px;
}

.grade-loader--lg {
  --loader-size: 80px;
  --loader-thickness: 3.5px;
}
.grade-loader--lg .grade-loader__g {
  font-size: calc(var(--loader-size) * 0.34);
}

@keyframes grade-loader-spin {
  to { transform: rotate(360deg); }
}

@keyframes grade-loader-breathe {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.72; transform: scale(0.94); }
}

@media (prefers-reduced-motion: reduce) {
  .grade-loader::before,
  .grade-loader__orbit,
  .grade-loader__g { animation: none; }
  .grade-loader::before { opacity: 0.85; }
}

/* Screen-reader only label when used as status */
.grade-loader__sr {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}