/* Focused Tutoring Pages: grid focus and progressive rotary navigation. */
[data-course-guide-selector] {
  --cg-card-opacity: 1;
  --cg-card-scale-x: 1;
  --cg-card-scale-y: 1;
  --cg-card-lift: 0px;
}

[data-course-guide-selector]:not(.is-course-guide-ready) .course-guide-instruction {
  display: none;
}

.course-guide-instruction {
  max-width: 620px;
  margin: 18px auto 0;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: .78rem;
  line-height: 1.55;
}

.course-guide-stage {
  position: relative;
  isolation: isolate;
}

.is-course-guide-ready [data-course-guide-card] {
  --cg-x: 0px;
  --cg-y: 0px;
  --cg-morph-x: 0px;
  --cg-morph-y: 0px;
  --cg-card-opacity: 1;
  --cg-card-scale-x: 1;
  --cg-card-scale-y: 1;
  --cg-card-lift: 0px;
  opacity: var(--cg-card-opacity);
  transform:
    translate3d(var(--cg-morph-x), var(--cg-morph-y), 0)
    translate3d(0, var(--cg-card-lift), 0)
    scaleX(var(--cg-card-scale-x))
    scaleY(var(--cg-card-scale-y));
  transform-origin: center bottom;
  transition:
    opacity .36s cubic-bezier(.22, 1, .36, 1),
    border-color .36s cubic-bezier(.22, 1, .36, 1),
    background-color .36s cubic-bezier(.22, 1, .36, 1),
    box-shadow .36s cubic-bezier(.22, 1, .36, 1);
  will-change: transform, opacity;
}

.is-course-guide-ready [data-course-guide-card].is-course-selected {
  z-index: 4;
  border-color: var(--green);
  box-shadow: 0 18px 42px rgba(22, 34, 63, .14), 0 0 0 3px var(--green-tint);
}

.is-course-guide-ready [data-course-guide-card].is-course-selected > .btn {
  border-color: var(--green);
  background: var(--green);
  color: var(--white);
}

.is-course-guide-ready [data-course-guide-card].is-course-near {
  z-index: 2;
}

.is-course-guide-ready [data-course-guide-card]:hover,
.is-course-guide-ready [data-course-guide-card].is-keyboard-focused {
  --cg-card-opacity: 1 !important;
  z-index: 6;
}

.is-course-guide-ready [data-course-guide-card].is-keyboard-focused {
  border-color: var(--green-dark);
  box-shadow: 0 0 0 4px var(--green-tint), 0 18px 42px rgba(22, 34, 63, .14);
}

.is-course-guide-ready [data-course-guide-card] > .btn:focus-visible,
.course-guide-open:focus-visible,
.course-guide-control:focus-visible {
  outline: 3px solid var(--highlighter);
  outline-offset: 3px;
}

.course-guide-center,
.course-guide-controls {
  display: none;
}

/* The same cards become the wheel; no replacement carousel is rendered. */
.is-course-guide-rotary .course-guide-stage {
  --cg-ring-width: min(76vw, 760px);
  --cg-ring-height: min(45vw, 440px);
  min-height: 650px;
  overflow: hidden;
  overflow: clip;
  touch-action: pan-y;
}

.is-course-guide-rotary .course-guide-stage::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  width: var(--cg-ring-width);
  height: var(--cg-ring-height);
  border: 1px solid var(--border);
  border-radius: 50%;
  background:
    radial-gradient(circle at center, var(--green-tint) 0 3px, transparent 4px),
    linear-gradient(90deg, transparent calc(50% - .5px), rgba(29, 43, 79, .08) 50%, transparent calc(50% + .5px)),
    linear-gradient(transparent calc(50% - .5px), rgba(29, 43, 79, .08) 50%, transparent calc(50% + .5px));
  transform: translate(-50%, -50%);
  pointer-events: none;
  opacity: .82;
}

.is-course-guide-rotary .course-guide-grid {
  display: block;
  position: absolute;
  inset: 0;
  width: 100%;
  max-width: none;
  height: 100%;
  margin: 0;
}

.is-course-guide-rotary [data-course-guide-card] {
  position: absolute;
  left: 50%;
  top: 50%;
  width: clamp(150px, 16vw, 190px);
  min-height: 88px;
  height: auto;
  padding: 15px 14px;
  justify-content: center;
  text-align: center;
  transform:
    translate(-50%, -50%)
    translate3d(var(--cg-x), var(--cg-y), 0)
    translate3d(var(--cg-morph-x), var(--cg-morph-y), 0)
    translate3d(0, var(--cg-card-lift), 0)
    scaleX(var(--cg-card-scale-x))
    scaleY(var(--cg-card-scale-y));
  transform-origin: center;
  -webkit-transform-origin: center;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.is-course-guide-rotary [data-course-guide-card] h3 {
  margin: 0;
  font-size: clamp(.92rem, 1.45vw, 1.1rem);
  line-height: 1.15;
  pointer-events: none;
}

.is-course-guide-rotary [data-course-guide-card] > p {
  display: none;
}

.is-course-guide-rotary [data-course-guide-card] > .btn {
  position: absolute;
  inset: 0;
  z-index: 3;
  min-width: 44px;
  min-height: 44px;
  padding: 0;
  border: 0;
  background: transparent;
  color: transparent;
  opacity: 0;
}

.is-course-guide-rotary [data-course-guide-card].is-course-selected {
  background: var(--green);
  border-color: var(--green);
  color: var(--white);
  box-shadow: 0 20px 48px rgba(22, 34, 63, .18), 0 0 0 4px var(--green-tint);
}

.is-course-guide-rotary [data-course-guide-card].is-course-selected h3 {
  color: var(--white);
}

.is-course-guide-rotary [data-course-guide-card].is-keyboard-focused {
  box-shadow: 0 0 0 4px var(--highlighter), 0 20px 48px rgba(22, 34, 63, .18);
}

.is-course-guide-rotary .course-guide-center {
  display: flex;
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 3;
  width: min(250px, 24vw);
  min-height: 190px;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--paper);
  box-shadow: 0 16px 38px rgba(22, 34, 63, .09);
  transform: translate(-50%, -50%);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.course-guide-monogram {
  color: var(--green-dark);
  font-family: var(--serif);
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1;
}

.course-guide-monogram sup {
  font-family: var(--mono);
  font-size: .58em;
}

.course-guide-center-label {
  margin: 10px 0 3px;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: .63rem;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.course-guide-selected-name {
  margin: 0 0 12px;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.15;
}

.course-guide-open {
  width: 100%;
  padding: 9px 11px;
  font-size: .78rem;
}

.is-course-guide-rotary .course-guide-controls {
  display: flex;
  position: absolute;
  left: 50%;
  bottom: 20px;
  z-index: 8;
  gap: 12px;
  transform: translateX(-50%);
}

.course-guide-control {
  display: inline-grid;
  width: 46px;
  height: 46px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--white);
  color: var(--ink);
  box-shadow: var(--shadow-sm);
  place-items: center;
  font: 700 1.2rem/1 var(--sans);
  cursor: pointer;
  transition: color .2s ease, border-color .2s ease, background-color .2s ease, transform .2s ease;
  -webkit-tap-highlight-color: transparent;
}

.course-guide-control:hover {
  border-color: var(--green);
  background: var(--green-tint);
  color: var(--green-dark);
  transform: translateY(-2px);
}

@media (max-width: 900px) {
  .is-course-guide-rotary .course-guide-stage {
    --cg-ring-width: min(82vw, 650px);
    --cg-ring-height: min(58vw, 430px);
    min-height: 620px;
  }

  .is-course-guide-rotary [data-course-guide-card] {
    width: clamp(132px, 20vw, 166px);
    min-height: 78px;
    padding: 12px 10px;
  }

  .is-course-guide-rotary .course-guide-center {
    width: min(220px, 30vw);
    min-height: 174px;
    padding: 16px;
  }
}

@media (max-width: 600px) {
  .course-guide-instruction {
    font-size: .72rem;
  }

  .is-course-guide-rotary .course-guide-stage {
    --cg-ring-width: calc(100vw - 52px);
    --cg-ring-height: 500px;
    min-height: 660px;
    margin-inline: 0;
  }

  .is-course-guide-rotary [data-course-guide-card] {
    width: clamp(88px, 26vw, 104px);
    min-height: 64px;
    padding: 10px 8px;
    border-radius: 8px;
  }

  .is-course-guide-rotary [data-course-guide-card] h3 {
    font-size: clamp(.67rem, 2.8vw, .8rem);
    line-height: 1.12;
  }

  .is-course-guide-rotary .course-guide-center {
    width: 132px;
    min-height: 132px;
    padding: 11px;
  }

  .course-guide-monogram {
    font-size: .94rem;
  }

  .course-guide-center-label {
    margin-top: 7px;
    font-size: .55rem;
  }

  .course-guide-selected-name {
    margin-bottom: 8px;
    font-size: .82rem;
  }

  .course-guide-open {
    padding: 7px 6px;
    font-size: .63rem;
  }

  .is-course-guide-rotary .course-guide-controls {
    display: none;
  }
}

@media (max-width: 350px) {
  .is-course-guide-rotary .course-guide-stage {
    --cg-ring-width: calc(100vw - 44px);
    --cg-ring-height: 500px;
    min-height: 660px;
  }

  .is-course-guide-rotary [data-course-guide-card] {
    width: 90px;
  }

  .is-course-guide-rotary .course-guide-center {
    width: 128px;
    min-height: 128px;
  }
}

@media (prefers-reduced-motion: reduce) {
  [data-course-guide-selector] [data-course-guide-card],
  [data-course-guide-selector] [data-course-guide-card] > .btn,
  [data-course-guide-selector] .course-guide-control {
    animation: none !important;
    transition: none !important;
  }

  [data-course-guide-selector] [data-course-guide-card] {
    opacity: 1 !important;
    transform: none !important;
    will-change: auto;
  }

  [data-course-guide-selector] .course-guide-instruction {
    display: none;
  }
}