select:not([multiple]):not([size]) {
  min-height: 2.75rem;
  border-radius: 0.75rem;
  border-color: rgb(203 213 225);
  background-color: rgba(255, 255, 255, 0.96);
  background-image:
    linear-gradient(45deg, transparent 50%, #0f766e 50%),
    linear-gradient(135deg, #0f766e 50%, transparent 50%),
    linear-gradient(to right, rgba(15, 118, 110, 0.12), rgba(59, 130, 246, 0.10));
  background-position:
    calc(100% - 20px) 50%,
    calc(100% - 14px) 50%,
    100% 0;
  background-size:
    6px 6px,
    6px 6px,
    3rem 100%;
  background-repeat: no-repeat;
  color: rgb(15 23 42);
  font-weight: 500;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.06);
  transition:
    border-color 180ms ease,
    background-color 180ms ease,
    box-shadow 180ms ease,
    transform 180ms ease;
}

select:not([multiple]):not([size]):hover {
  border-color: rgb(20 184 166);
  background-color: #fff;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.10);
}

select:not([multiple]):not([size]):focus {
  border-color: rgb(20 184 166);
  box-shadow:
    0 0 0 4px rgba(20, 184, 166, 0.14),
    0 12px 30px rgba(15, 23, 42, 0.12);
}

select:not([multiple]):not([size]):disabled {
  cursor: not-allowed;
  background-color: rgb(241 245 249);
  color: rgb(100 116 139);
  box-shadow: none;
}

.alphaion-select {
  position: relative;
  min-width: 11.25rem;
  color: rgb(15 23 42);
}

.alphaion-select.is-full {
  width: 100%;
}

.alphaion-select.is-flex {
  flex: 1 1 0%;
}

.alphaion-select-native {
  position: absolute !important;
  inset: 0;
  width: 100% !important;
  height: 100% !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

.alphaion-select-trigger {
  width: 100%;
  min-height: 2.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  border: 1px solid rgba(203, 213, 225, 0.95);
  border-radius: 0.9rem;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.98), rgba(248, 250, 252, 0.96)) padding-box,
    linear-gradient(135deg, rgba(20, 184, 166, 0.55), rgba(59, 130, 246, 0.38)) border-box;
  padding: 0.7rem 0.75rem 0.7rem 1rem;
  color: rgb(15 23 42);
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.2;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.05);
  transition:
    border-color 180ms ease,
    box-shadow 180ms ease,
    transform 180ms ease,
    background-color 180ms ease;
}

.alphaion-select-trigger:hover {
  border-color: rgba(20, 184, 166, 0.9);
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.12);
  transform: translateY(-1px);
}

.alphaion-select.is-open .alphaion-select-trigger,
.alphaion-select-trigger:focus-visible {
  outline: none;
  border-color: rgba(20, 184, 166, 1);
  box-shadow:
    0 0 0 4px rgba(20, 184, 166, 0.14),
    0 16px 36px rgba(15, 23, 42, 0.14);
}

.alphaion-select-label {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.alphaion-select-chevron {
  width: 2rem;
  height: 2rem;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border-radius: 0.7rem;
  background: linear-gradient(135deg, rgba(20, 184, 166, 0.16), rgba(59, 130, 246, 0.14));
  color: #0f766e;
  transition:
    transform 220ms cubic-bezier(0.22, 1, 0.36, 1),
    background-color 180ms ease;
}

.alphaion-select-chevron::before {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: translateY(-1px) rotate(45deg);
}

.alphaion-select.is-open .alphaion-select-chevron {
  transform: rotate(180deg);
}

.alphaion-select-menu {
  position: absolute;
  left: 0;
  right: 0;
  top: calc(100% + 0.45rem);
  z-index: 70;
  max-height: min(18rem, 55vh);
  overflow: auto;
  border: 1px solid rgba(203, 213, 225, 0.8);
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.98);
  box-shadow:
    0 24px 60px rgba(15, 23, 42, 0.20),
    0 8px 20px rgba(15, 23, 42, 0.10);
  padding: 0.4rem;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-0.45rem) scale(0.98);
  transform-origin: top center;
  transition:
    opacity 180ms ease,
    transform 220ms cubic-bezier(0.22, 1, 0.36, 1);
}

.alphaion-select.is-open .alphaion-select-menu {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

.alphaion-select-menu::-webkit-scrollbar {
  width: 0.55rem;
}

.alphaion-select-menu::-webkit-scrollbar-track {
  background: transparent;
}

.alphaion-select-menu::-webkit-scrollbar-thumb {
  background: rgba(148, 163, 184, 0.6);
  border-radius: 999px;
}

.alphaion-select-option {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  border-radius: 0.75rem;
  padding: 0.7rem 0.75rem;
  color: rgb(51 65 85);
  font-size: 0.875rem;
  font-weight: 600;
  text-align: left;
  transition:
    background-color 160ms ease,
    color 160ms ease,
    transform 160ms ease;
}

.alphaion-select-option:hover,
.alphaion-select-option.is-active {
  background: linear-gradient(135deg, rgba(240, 253, 250, 0.95), rgba(239, 246, 255, 0.95));
  color: rgb(15 23 42);
  transform: translateX(2px);
}

.alphaion-select-option.is-selected {
  background: linear-gradient(135deg, rgb(20 184 166), rgb(37 99 235));
  color: #fff;
  box-shadow: 0 10px 22px rgba(37, 99, 235, 0.24);
}

.alphaion-select-option.is-selected::after {
  content: "";
  width: 0.72rem;
  height: 0.4rem;
  border-left: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: translateY(-1px) rotate(-45deg);
  flex: 0 0 auto;
}

@media (prefers-reduced-motion: reduce) {
  .alphaion-select-trigger,
  .alphaion-select-chevron,
  .alphaion-select-menu,
  .alphaion-select-option {
    transition: none;
  }
}

.alphaion-syllabus-aside {
  width: 100%;
  flex: 0 0 auto;
}

.alphaion-syllabus-panel {
  position: relative;
  width: 100%;
}

.alphaion-syllabus-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.9rem;
}

.alphaion-syllabus-heading::before {
  content: "";
  width: 2.5rem;
  height: 0.22rem;
  border-radius: 999px;
  background: rgb(15 23 42);
  position: absolute;
  top: -0.9rem;
  left: 0;
}

.alphaion-syllabus-nav {
  display: flex;
  gap: 0.65rem;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 0.15rem 0.05rem 0.65rem;
  scroll-snap-type: x proximity;
  scrollbar-width: none;
}

.alphaion-syllabus-nav::-webkit-scrollbar {
  display: none;
}

.alphaion-syllabus-link {
  min-width: min(17rem, 82vw);
  scroll-snap-align: start;
  border: 1px solid rgba(226, 232, 240, 0.95);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
}

.alphaion-syllabus-link:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 32px rgba(15, 23, 42, 0.10);
}

.alphaion-syllabus-help {
  margin-top: 1rem;
  border-radius: 1rem;
}

@media (max-width: 767px) {
  .alphaion-syllabus-aside {
    margin-top: -0.25rem;
  }

  .alphaion-syllabus-panel {
    border: 1px solid rgba(226, 232, 240, 0.92);
    border-radius: 1.25rem;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(248, 250, 252, 0.94));
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
    padding: 1.25rem;
  }

  .alphaion-syllabus-heading {
    margin-top: 0.7rem;
  }

  .alphaion-syllabus-heading::before {
    top: 0;
    left: 1.25rem;
  }

  .alphaion-syllabus-help {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.95rem 1rem;
  }

  .alphaion-syllabus-help p {
    display: none;
  }
}

@media (min-width: 768px) {
  .alphaion-syllabus-aside {
    width: 15rem;
    min-width: 15rem;
    max-width: 15rem;
  }

  .alphaion-syllabus-panel {
    position: sticky;
    top: 6rem;
  }

  .alphaion-syllabus-heading {
    display: block;
    margin-bottom: 1.5rem;
  }

  .alphaion-syllabus-heading::before {
    position: static;
    display: block;
    margin-bottom: 0.75rem;
  }

  .alphaion-syllabus-nav {
    display: block;
    overflow: visible;
    padding: 0;
  }

  .alphaion-syllabus-link {
    min-width: 0;
    box-shadow: none;
  }

  .alphaion-syllabus-help {
    margin-top: 2rem;
  }
}

.alphaion-mobile-menu {
  display: block;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-0.75rem);
  transform-origin: top;
  transition:
    max-height 320ms cubic-bezier(0.22, 1, 0.36, 1),
    opacity 220ms ease,
    transform 260ms cubic-bezier(0.22, 1, 0.36, 1);
}

.alphaion-mobile-menu.is-open {
  max-height: calc(100vh - 4rem);
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.alphaion-mobile-menu a {
  border-radius: 0.75rem;
  padding-left: 0.75rem;
  padding-right: 0.75rem;
  transition:
    background-color 180ms ease,
    color 180ms ease,
    transform 180ms ease;
}

.alphaion-mobile-menu a:hover,
.alphaion-mobile-menu a:focus-visible {
  background-color: rgba(255, 255, 255, 0.10);
  transform: translateX(0.25rem);
}

@media (min-width: 768px) {
  .alphaion-mobile-menu {
    display: none;
  }
}