.inner-page {
  background: var(--canvas);
}

.page-shell-inner {
  min-height: 100svh;
  padding-bottom: 1px;
}

.inner-main {
  padding-top: clamp(2rem, 4vw, 3.5rem);
}

.course-overview {
  --course-overview-inset: clamp(1.25rem, 4vw, 3.25rem);
  --course-overview-top-inset: clamp(1rem, 2.25vw, 1.75rem);
  --course-overview-bottom-inset: clamp(0.75rem, 2vw, 1.5rem);
  --course-overview-duration: 720ms;
  position: relative;
  isolation: isolate;
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: clamp(2.5rem, 5vw, 4.5rem);
  padding: 0;
  transition: gap var(--course-overview-duration) cubic-bezier(0.22, 1, 0.36, 1), padding-inline var(--course-overview-duration) cubic-bezier(0.22, 1, 0.36, 1), padding-bottom var(--course-overview-duration) cubic-bezier(0.22, 1, 0.36, 1);
}

.course-overview::before {
  position: absolute;
  z-index: -1;
  inset: calc(var(--course-overview-top-inset) * -1) 0 0;
  border: 1px solid rgba(255, 255, 255, 0.76);
  border-radius: 1.5rem;
  background: rgba(255, 255, 255, 0.46);
  box-shadow: 0 20px 60px rgba(50, 45, 39, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.72);
  -webkit-backdrop-filter: blur(24px) saturate(125%);
  backdrop-filter: blur(24px) saturate(125%);
  clip-path: circle(0 at var(--course-overview-origin-x, 50%) var(--course-overview-origin-y, 50%));
  content: "";
  opacity: 0;
  pointer-events: none;
  transform: scale(0.96);
  transform-origin: var(--course-overview-origin-x, 50%) var(--course-overview-origin-y, 50%);
  transition: clip-path var(--course-overview-duration) cubic-bezier(0.22, 1, 0.36, 1), opacity 240ms ease, transform var(--course-overview-duration) cubic-bezier(0.22, 1, 0.36, 1);
  will-change: clip-path, opacity, transform;
}

.course-overview.is-expanded {
  gap: var(--course-overview-bottom-inset);
  padding-inline: var(--course-overview-inset);
  padding-bottom: var(--course-overview-bottom-inset);
}

.course-overview.is-expanded::before {
  clip-path: circle(150% at var(--course-overview-origin-x, 50%) var(--course-overview-origin-y, 50%));
  opacity: 1;
  transform: scale(1);
}

.course-overview-heading {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  width: fit-content;
}

.course-overview h1 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(3rem, 3vw, 6rem);
  font-weight: 720;
  letter-spacing: -0.07em;
  line-height: 0.95;
  text-wrap: balance;
}

.course-overview-toggle {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 3rem;
  height: 3rem;
  margin-top: 0.3rem;
  padding: 0;
  color: var(--ink-muted);
  border: 0;
  border-radius: 0;
  background: transparent;
  cursor: pointer;
  transition: color 180ms var(--ease), transform 180ms var(--ease);
}

.course-overview-toggle:hover {
  color: var(--ink);
  transform: translateX(0.15rem);
}

.course-overview-toggle:active {
  transform: scale(0.94);
}

.course-overview-toggle .icon {
  width: 1.15rem;
  height: 1.15rem;
  transition: transform 600ms cubic-bezier(0.22, 1, 0.36, 1);
}

.course-overview.is-expanded .course-overview-toggle .icon {
  transform: rotate(90deg);
}

.course-overview-summary {
  width: 100%;
  max-width: 65rem;
  align-self: center;
  max-height: 0;
  overflow: hidden;
  transform: translateY(-0.35rem);
  visibility: hidden;
  transition: max-height var(--course-overview-duration) cubic-bezier(0.22, 1, 0.36, 1), transform var(--course-overview-duration) cubic-bezier(0.22, 1, 0.36, 1), visibility 0s linear var(--course-overview-duration);
}

.course-overview-summary p {
  margin: 0;
  color: var(--ink-muted);
  font-size: clamp(1rem, 1.35vw, 1.15rem);
  line-height: 1.8;
}

.course-overview.is-expanded .course-overview-summary {
  max-height: 20rem;
  transform: translateY(0);
  visibility: visible;
  transition: max-height var(--course-overview-duration) cubic-bezier(0.22, 1, 0.36, 1), transform var(--course-overview-duration) cubic-bezier(0.22, 1, 0.36, 1), visibility 0s linear 0s;
}

.course-overview + .directory-list {
  margin-top: 0;
}

.directory-header {
  display: block;
  padding-bottom: 0;
}

.directory-header h1 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(3rem, 3vw, 6rem);
  font-weight: 720;
  letter-spacing: -0.07em;
  line-height: 0.95;
}

.directory-list {
  margin-top: 1.25rem;
}

/* Keep the empty state visible even while the directory module is unavailable. */
.directory-list:empty {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: auto auto;
  place-items: center;
  gap: 1rem;
  min-height: clamp(18rem, 50svh, 32rem);
  padding: 2rem 0 3rem;
  border-bottom: 0;
}

.directory-list:empty::before {
  content: '';
  grid-row: 1;
  display: block;
  width: 4.8rem;
  height: 3.6rem;
  border-radius: 0.22rem;
  background:
    radial-gradient(circle at 54% 20%, #f1ba91 0 0.34rem, transparent 0.38rem),
    radial-gradient(ellipse at 54% 12%, var(--orange) 0 0.58rem, transparent 0.62rem),
    linear-gradient(var(--orange), var(--orange)) 50% 52% / 1.55rem 1.2rem no-repeat,
    linear-gradient(var(--ink), var(--ink)) 44% 86% / 0.35rem 1rem no-repeat,
    linear-gradient(var(--ink), var(--ink)) 63% 86% / 0.35rem 1rem no-repeat,
    linear-gradient(25deg, transparent 46%, #f1ba91 47% 57%, transparent 58%) 30% 53% / 2rem 1rem no-repeat,
    linear-gradient(-22deg, transparent 44%, #f1ba91 45% 55%, transparent 56%) 63% 53% / 2rem 1rem no-repeat,
    linear-gradient(-18deg, var(--ink) 0 8%, transparent 9%) 70% 48% / 1.35rem 0.25rem no-repeat;
  background-repeat: no-repeat;
  box-shadow: 0 0.35rem 0 rgba(41, 41, 41, 0.08);
  transform: rotate(-5deg);
  animation: worker-breathe 2.8s ease-in-out infinite;
}

.directory-list:empty::after {
  content: '正在開發中...';
  grid-row: 2;
  margin-top: -0.2rem;
  color: var(--ink-muted);
  font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  font-weight: 650;
  letter-spacing: -0.025em;
}

.directory-row {
  display: grid;
  grid-template-columns: minmax(4.5rem, 0.18fr) minmax(0, 1fr) auto;
  align-items: center;
  gap: 1rem;
  min-height: 5.25rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line);
}

.directory-row-meta {
  align-self: stretch;
  display: flex;
  align-items: center;
  padding-right: 1rem;
  color: var(--orange-deep);
  border-right: 1px solid var(--line);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.directory-row h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(1.35rem, 2.2vw, 1.85rem);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 1.2;
}

.directory-row-arrow {
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  color: var(--orange-deep);
  border: 1px solid rgba(215, 95, 40, 0.24);
  border-radius: 50%;
  background: rgba(243, 112, 33, 0.08);
  font-size: 1.25rem;
  line-height: 1;
}

.directory-row-muted {
  opacity: 0.58;
}

.directory-row:last-child {
  border-bottom: 0;
}

.directory-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 1rem;
  min-height: clamp(18rem, 50svh, 32rem);
  padding: 2rem 0 3rem;
  text-align: center;
}

.directory-empty-visual {
  position: relative;
  width: 4.8rem;
  height: 3.6rem;
}

.directory-empty-worker {
  position: absolute;
  inset: 0;
  display: block;
  animation: worker-breathe 2.8s ease-in-out infinite;
}

.worker-helmet,
.worker-head,
.worker-torso,
.worker-leg,
.worker-arm,
.worker-tool {
  position: absolute;
  display: block;
}

.worker-helmet {
  top: 0.2rem;
  left: 2rem;
  width: 1.3rem;
  height: 0.62rem;
  border: 0.12rem solid var(--orange-deep);
  border-bottom-width: 0.2rem;
  border-radius: 0.8rem 0.8rem 0.25rem 0.25rem;
  background: var(--orange);
  box-shadow: 0 0.12rem 0 rgba(41, 41, 41, 0.18);
  animation: worker-helmet-bob 2.8s ease-in-out infinite;
}

.worker-head {
  top: 0.75rem;
  left: 2.25rem;
  width: 0.78rem;
  height: 0.72rem;
  border-radius: 0.35rem 0.35rem 0.42rem 0.42rem;
  background: #f1ba91;
  box-shadow: inset -0.12rem 0 rgba(194, 82, 39, 0.14);
}

.worker-torso {
  top: 1.38rem;
  left: 1.85rem;
  width: 1.75rem;
  height: 1.22rem;
  border-radius: 0.5rem 0.5rem 0.28rem 0.28rem;
  background: var(--orange);
  box-shadow: inset 0 -0.22rem 0 rgba(41, 41, 41, 0.12);
}

.worker-torso::after {
  content: '';
  position: absolute;
  top: 0.38rem;
  left: 0;
  width: 100%;
  height: 0.16rem;
  background: #fff4e8;
  opacity: 0.85;
}

.worker-leg {
  top: 2.42rem;
  width: 0.42rem;
  height: 1rem;
  border-radius: 0.25rem 0.25rem 0.12rem 0.12rem;
  background: var(--ink);
  transform-origin: top center;
}

.worker-leg-back {
  left: 2.05rem;
  transform: rotate(12deg);
  opacity: 0.82;
}

.worker-leg-front {
  left: 2.92rem;
  transform: rotate(-13deg);
  animation: worker-step 2.8s ease-in-out infinite;
}

.worker-arm {
  top: 1.55rem;
  width: 1.05rem;
  height: 0.32rem;
  border-radius: 999px;
  background: #f1ba91;
  transform-origin: 0.12rem 50%;
}

.worker-arm-back {
  left: 1.65rem;
  transform: rotate(38deg);
  opacity: 0.8;
}

.worker-arm-front {
  left: 3.05rem;
  transform: rotate(25deg);
  animation: worker-swing-tool 1.9s ease-in-out infinite;
}

.worker-tool {
  top: -0.18rem;
  left: 0.78rem;
  width: 1.45rem;
  height: 0.2rem;
  border-radius: 999px;
  background: var(--ink);
  transform: rotate(-20deg);
  transform-origin: left center;
}

.worker-tool::after {
  content: '';
  position: absolute;
  top: -0.2rem;
  right: -0.04rem;
  width: 0.36rem;
  height: 0.58rem;
  border-radius: 0.1rem;
  background: var(--orange-deep);
}

.directory-empty-worker::after {
  content: '';
  position: absolute;
  left: 1.62rem;
  bottom: 0.02rem;
  width: 2.2rem;
  height: 0.14rem;
  border-radius: 999px;
  background: rgba(41, 41, 41, 0.18);
  transform: scaleX(0.92);
}

.directory-empty-label {
  margin: 0;
  color: var(--ink-muted);
  font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  font-weight: 650;
  letter-spacing: -0.025em;
}

.directory-empty-dots {
  display: inline-flex;
  gap: 0.18rem;
  margin-left: 0.22rem;
  vertical-align: 0.04em;
}

.directory-empty-dots span {
  width: 0.28rem;
  height: 0.28rem;
  border-radius: 50%;
  background: var(--orange);
  animation: construction-dot 1.35s ease-in-out infinite;
}

.directory-empty-dots span:nth-child(2) {
  animation-delay: 0.18s;
}

.directory-empty-dots span:nth-child(3) {
  animation-delay: 0.36s;
}

@keyframes worker-breathe {
  from {
    transform: translate3d(0, 0, 0);
  }

  to {
    transform: translate3d(0, -0.08rem, 0);
  }
}

@keyframes worker-helmet-bob {
  0%,
  100% {
    transform: translateY(0) rotate(-2deg);
  }

  50% {
    transform: translateY(-0.08rem) rotate(2deg);
  }
}

@keyframes worker-swing-tool {
  0%,
  100% {
    transform: rotate(25deg);
  }

  50% {
    transform: rotate(-22deg);
  }
}

@keyframes worker-step {
  0%,
  100% {
    transform: rotate(-13deg);
  }

  50% {
    transform: rotate(5deg) translateY(-0.05rem);
  }
}

@keyframes construction-dot {
  0%,
  100% {
    opacity: 0.28;
    transform: translateY(0);
  }

  50% {
    opacity: 1;
    transform: translateY(-0.16rem);
  }
}

.teacher-application-main,
.admin-main {
  padding-bottom: 5rem;
}

.teacher-application-card,
.admin-panel,
.admin-denied {
  max-width: 58rem;
  margin: 0 auto;
  padding: clamp(1.25rem, 4vw, 2rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: rgba(255, 255, 255, 0.54);
  box-shadow: var(--shadow-soft);
}

.teacher-application-card h1,
.admin-panel h1,
.admin-denied h1 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 720;
  letter-spacing: -0.07em;
  line-height: 0.95;
}

.teacher-application-card > p,
.admin-panel-header p,
.admin-denied p {
  margin: 0.9rem 0 0;
  color: var(--ink-muted);
  font-size: 0.9rem;
}

.teacher-application-form-page {
  display: grid;
  gap: 1rem;
  max-width: 42rem;
  margin-top: 2rem;
}

.teacher-application-form-page label {
  display: grid;
  gap: 0.4rem;
  color: var(--ink-muted);
  font-size: 0.78rem;
  font-weight: 650;
}

.teacher-application-date-range {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
}

.teacher-application-date-title {
  display: block;
  grid-column: 1 / -1;
  color: var(--ink-muted);
  font: inherit;
  font-size: 0.78rem;
  font-weight: 650;
  line-height: 1.4;
}

.teacher-application-date-fields {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  grid-column: 1 / -1;
  align-items: end;
  gap: 0.55rem;
}

.teacher-application-date-separator {
  padding-bottom: 0.78rem;
  color: var(--orange);
  font-size: 1rem;
  font-weight: 700;
}

.teacher-application-form-page input,
.teacher-application-form-page textarea,
.admin-application-row input {
  width: 100%;
  padding: 0.7rem 0.8rem;
  color: var(--ink);
  border: 1px solid var(--line-strong);
  border-radius: 0.7rem;
  outline: 0;
  background: rgba(255, 255, 255, 0.62);
  font: inherit;
  font-size: 0.88rem;
  resize: vertical;
}

.teacher-application-form-page input,
.admin-application-row input {
  min-height: 2.75rem;
}

.teacher-application-form-page input:focus,
.teacher-application-form-page textarea:focus,
.admin-application-row input:focus {
  border-color: var(--orange);
  box-shadow: 0 0 0 3px rgba(243, 112, 33, 0.14);
}

.teacher-application-actions,
.admin-panel-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 0.35rem;
}

.teacher-application-page-status,
.admin-page-status {
  min-height: 1.3rem;
  margin: 1.25rem 0 0;
  color: var(--orange-deep);
  font-size: 0.78rem;
}

.teacher-application-notice {
  margin-top: 2rem;
  padding: 1rem 1.1rem;
  border-radius: 0.9rem;
  background: rgba(243, 112, 33, 0.08);
  color: var(--ink-muted);
  font-size: 0.86rem;
}

.admin-panel-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--line);
}

.admin-panel-header p {
  margin-bottom: 0;
}

.admin-section {
  margin-top: 1rem;
  padding: 1.15rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.42);
}

.admin-section h2 {
  margin: 0;
  color: var(--ink);
  font-size: 1.2rem;
  letter-spacing: -0.04em;
}

.admin-section > p {
  margin: 0.4rem 0 0;
  color: var(--ink-muted);
  font-size: 0.78rem;
}

.admin-application-list {
  display: grid;
  gap: 0.7rem;
  margin-top: 1rem;
}

.admin-application-row {
  display: grid;
  gap: 0.7rem;
  padding: 0.9rem;
  border-radius: 0.8rem;
  background: rgba(255, 255, 255, 0.56);
}

.admin-application-copy {
  display: grid;
  gap: 0.18rem;
}

.admin-application-copy strong {
  color: var(--ink);
  font-size: 0.9rem;
}

.admin-application-copy span,
.admin-application-copy p {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.78rem;
  line-height: 1.55;
}

.admin-application-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
}

.admin-application-fields label {
  display: grid;
  gap: 0.3rem;
  color: var(--ink-muted);
  font-size: 0.72rem;
  font-weight: 650;
}

.admin-application-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.6rem;
}

.admin-empty {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.82rem;
}

.manage-main {
  min-height: min(34rem, calc(100svh - 9rem));
}

.manage-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.85rem;
  max-width: 48rem;
  min-height: 18rem;
  margin: 0 auto;
}

.manage-loading-line {
  width: 1.8rem;
  height: 0.18rem;
  flex: 0 0 auto;
  border-radius: 999px;
  background: var(--orange);
}

.manage-loading h1 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(3rem, 3vw, 6rem);
  font-weight: 720;
  letter-spacing: -0.07em;
  line-height: 0.95;
}

.manage-loading p {
  margin: 0.75rem 0 0;
  color: var(--ink-muted);
  font-size: 0.86rem;
}

.manage-gate {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: clamp(1.25rem, 5vw, 4rem);
  max-width: 48rem;
  min-height: 18rem;
  margin: 0 auto;
  padding: clamp(1.5rem, 5vw, 3rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: rgba(255, 255, 255, 0.62);
  box-shadow: var(--shadow-soft);
}

.manage-gate-symbol {
  display: grid;
  place-items: center;
  width: 4.5rem;
  height: 4.5rem;
  color: var(--orange-deep);
  border: 1px solid rgba(215, 95, 40, 0.24);
  border-radius: 1.2rem;
  background: rgba(243, 112, 33, 0.08);
}

.manage-gate-symbol .icon {
  width: 1.45rem;
  height: 1.45rem;
}

.manage-gate h1 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 720;
  letter-spacing: -0.07em;
  line-height: 0.95;
}

.manage-gate-copy > p:first-of-type {
  margin: 1rem 0 0;
  color: var(--ink-soft);
  font-size: 1rem;
}

.auth-status {
  width: fit-content;
  margin: 1rem 0 0;
  padding: 0.35rem 0.6rem;
  color: var(--orange-deep);
  border: 1px solid rgba(215, 95, 40, 0.22);
  border-radius: 999px;
  background: rgba(243, 112, 33, 0.08);
  font-size: 0.72rem;
}

.manage-gate .button {
  margin-top: 1.25rem;
}

.manage-gate .button:disabled {
  cursor: wait;
  opacity: 0.62;
}

.manage-panel,
.manage-denied {
  position: relative;
  z-index: 3;
  max-width: 58rem;
  margin: 0 auto;
  pointer-events: auto;
}

.manage-panel-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--line);
}

.manage-panel h1,
.manage-denied h1 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(3rem, 3vw, 6rem);
  font-weight: 720;
  letter-spacing: -0.07em;
  line-height: 0.95;
}

.manage-panel-header p,
.manage-denied p {
  margin: 0.85rem 0 0;
  color: var(--ink-muted);
  font-size: 0.86rem;
}

.button-secondary {
  color: var(--ink);
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.62);
}

.button-secondary:hover {
  border-color: rgba(215, 95, 40, 0.35);
  background: rgba(243, 112, 33, 0.1);
}

.manage-settings {
  display: grid;
  gap: 1rem;
  margin-top: 1.25rem;
}

.manage-setting {
  padding: clamp(1.25rem, 3vw, 1.75rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: rgba(255, 255, 255, 0.5);
  box-shadow: var(--shadow-soft);
}

.manage-setting-heading {
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
}

.manage-setting-index {
  color: var(--orange-deep);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.manage-setting h2 {
  margin: 0;
  color: var(--ink);
  font-size: 1.25rem;
  font-weight: 700;
}

.manage-setting-heading p {
  margin: 0.35rem 0 0;
  color: var(--ink-muted);
  font-size: 0.78rem;
}

.manage-setting-fields {
  display: grid;
  gap: 0.7rem;
  margin-top: 1rem;
  margin-left: 4rem;
}

.manage-setting-list {
  display: grid;
  gap: 0.7rem;
  margin-top: 1rem;
  margin-left: 4rem;
}

.manage-setting-row {
  display: grid;
  grid-template-columns: minmax(10rem, 0.32fr) minmax(0, 1fr) auto auto;
  gap: 0.7rem;
}

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

.manage-setting input,
.manage-setting select {
  width: 100%;
  min-height: 2.75rem;
  padding: 0.5rem 0.75rem;
  color: var(--ink);
  border: 1px solid var(--line-strong);
  border-radius: 0.7rem;
  outline: 0;
  background: rgba(255, 255, 255, 0.56);
  font: inherit;
  font-size: 0.82rem;
}

.manage-setting input:focus,
.manage-setting select:focus {
  border-color: var(--orange);
  box-shadow: 0 0 0 3px rgba(243, 112, 33, 0.14);
}

.manage-add-button,
.manage-remove-button {
  color: var(--orange-deep);
  border: 0;
  background: transparent;
  font: inherit;
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
}

.manage-add-button {
  margin: 0.85rem 0 0 4rem;
  padding: 0.2rem 0;
}

.manage-add-button:hover,
.manage-remove-button:hover {
  color: var(--ink);
}

.manage-remove-button {
  align-self: center;
  min-width: 2rem;
  min-height: 2.75rem;
  padding: 0 0.35rem;
}

.manage-verify-button {
  min-height: 2.75rem;
  padding: 0 0.7rem;
  color: var(--orange-deep);
  border: 1px solid rgba(215, 95, 40, 0.24);
  border-radius: 0.7rem;
  background: rgba(243, 112, 33, 0.08);
  font: inherit;
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
}

.manage-verify-button:hover {
  color: #fffaf6;
  background: var(--orange);
}

.manage-verify-button:disabled,
.manage-remove-button:disabled,
.manage-add-button:disabled {
  cursor: wait;
  opacity: 0.62;
}

.ai-base-url {
  display: grid;
  grid-column: 1 / -1;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 0.7rem;
  color: var(--ink-muted);
  font-size: 0.74rem;
}

.manage-setting-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 1rem;
  margin-top: 1rem;
}

.manage-inline-status {
  min-height: 1.2rem;
  margin: 0 auto 0 0;
  color: var(--ink-muted);
  font-size: 0.74rem;
}

.ai-key-row > .manage-inline-status {
  grid-column: 1 / -1;
}

.manage-setting-fields label {
  display: grid;
  gap: 0.35rem;
  color: var(--ink-muted);
  font-size: 0.74rem;
  font-weight: 650;
}

.manage-settings-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 1rem;
  padding-top: 1.25rem;
}

.manage-settings-actions .auth-status {
  margin: 0 auto 0 0;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.manage-denied {
  padding: clamp(1.5rem, 5vw, 3rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: rgba(255, 255, 255, 0.62);
  box-shadow: var(--shadow-soft);
}

.manage-denied .auth-status {
  margin-top: 1rem;
}

.google-mark {
  display: grid;
  place-items: center;
  width: 1.3rem;
  height: 1.3rem;
  color: var(--orange-deep);
  border-radius: 50%;
  background: #fff;
  font-weight: 800;
}

@media (max-width: 900px) {
  .directory-row {
    grid-template-columns: minmax(4rem, 0.2fr) minmax(0, 1fr) auto;
  }
}

@media (max-width: 640px) {
  .inner-main {
    padding-top: 4.5rem;
  }

  .course-overview {
    margin-bottom: 2.75rem;
  }

  .course-overview::before {
    border-radius: 1rem;
  }

  .course-overview-heading {
    gap: 0.9rem;
  }

  .course-overview-toggle {
    width: 2.75rem;
    height: 2.75rem;
  }

  .directory-row {
    grid-template-columns: minmax(3.5rem, auto) minmax(0, 1fr) auto;
    gap: 0.7rem;
  }

  .directory-empty {
    min-height: clamp(16rem, 48svh, 26rem);
  }

  .directory-list:empty {
    min-height: clamp(16rem, 48svh, 26rem);
  }

  .directory-row-meta {
    padding-right: 0.7rem;
  }

  .directory-row h2 {
    font-size: 1.25rem;
  }

  .directory-row-arrow {
    width: 2.35rem;
    height: 2.35rem;
  }

  .manage-main {
    min-height: 30rem;
  }

  .manage-gate {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .manage-panel-header {
    align-items: stretch;
    flex-direction: column;
  }

  .manage-panel-header .button {
    align-self: flex-start;
  }

  .manage-setting-list,
  .manage-setting-fields {
    margin-left: 0;
  }

  .manage-add-button {
    margin-left: 0;
  }

  .manage-setting-fields {
    grid-template-columns: 1fr;
  }

  .manage-setting-row {
    grid-template-columns: minmax(0, 1fr) auto auto;
  }

  .manage-setting-row select,
  .manage-setting-row input[data-ai-key] {
    grid-column: 1 / -1;
  }

  .manage-setting {
    padding: 1rem;
  }

  .manage-setting-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .manage-setting-actions .manage-inline-status {
    margin-right: 0;
  }

  .manage-settings-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .manage-settings-actions .auth-status {
    margin-right: 0;
  }

  .admin-panel-header {
    align-items: stretch;
    flex-direction: column;
  }

  .admin-application-fields {
    grid-template-columns: 1fr;
  }

  .teacher-application-date-range {
    grid-template-columns: 1fr;
  }

  .teacher-application-date-fields {
    grid-template-columns: minmax(0, 1fr);
  }

  .teacher-application-date-separator {
    display: none;
  }

  .admin-application-actions,
  .teacher-application-actions {
    align-items: stretch;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  .course-overview,
  .course-overview::before,
  .course-overview-summary,
  .course-overview-toggle,
  .course-overview-toggle .icon {
    transition-duration: 0.01ms;
  }

  .course-overview::before {
    clip-path: none;
    transform: none;
  }

}

@media (prefers-reduced-transparency: reduce) {
  .course-overview::before {
    background: var(--surface-solid);
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }
}