body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(47, 110, 219, 0.09), transparent 28%),
    radial-gradient(circle at top right, rgba(242, 140, 40, 0.09), transparent 24%),
    linear-gradient(180deg, #fbfaf7 0%, #f3f6fb 44%, #edf3fb 100%);
}

.manage-wrap {
  padding: 28px 14px 40px;
}

.manage-shell {
  width: 100%;
  max-width: 1680px;
  margin: 0 auto;
}

.manage-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 26px;
  margin-bottom: 22px;
  padding: 28px 30px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(221, 228, 239, 0.9);
  border-radius: 30px;
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.08);
  backdrop-filter: blur(10px);
}

.manage-header h1 {
  margin: 0 0 12px;
  font-size: clamp(2.1rem, 3vw, 3.1rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
}

.manage-intro {
  margin: 0;
  max-width: 760px;
  color: #646057;
  font-size: 1rem;
  line-height: 1.7;
}

.manage-header-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px;
}

.manage-link-btn,
.manage-primary-btn,
.manage-danger-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: auto;
  min-height: 48px;
  padding: 12px 18px;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast),
    background var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast);
}

button.manage-link-btn {
  font: inherit;
}

.manage-link-btn:hover,
.manage-primary-btn:hover,
.manage-danger-btn:hover {
  transform: translateY(-1px);
}

.manage-link-btn {
  border: 1px solid #d8d1c7;
  background: rgba(255, 255, 255, 0.94);
  color: #302b25;
  box-shadow: 0 10px 26px rgba(15, 23, 42, 0.05);
}

.manage-link-btn-primary,
.manage-primary-btn {
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  box-shadow: 0 16px 30px rgba(17, 17, 17, 0.12);
}

.manage-link-btn-primary:hover,
.manage-primary-btn:hover {
  background: #222;
}

.manage-logout-btn {
  border-color: #f3caca;
  background: #fff7f7;
  color: #a61b1b;
}

.manage-logout-btn:hover {
  background: #fff0f0;
}

.manage-logout-icon {
  display: inline-flex;
  width: 24px;
  height: 24px;
  margin-right: 8px;
}

.manage-logout-icon svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
}

.manage-danger-btn {
  border: 1px solid #f2c8c8;
  background: #fff7f7;
  color: #991b1b;
}

.manage-danger-btn:hover {
  background: #fff0f0;
}

.manage-danger-btn.is-solid {
  border-color: #b91c1c;
  background: #b91c1c;
  color: #fff;
  box-shadow: 0 16px 28px rgba(185, 28, 28, 0.18);
}

.manage-danger-btn.is-solid:hover {
  background: #991b1b;
}

.manage-trash-icon {
  display: inline-flex;
  width: 16px;
  height: 16px;
  margin-right: 8px;
}

.manage-trash-icon svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
}

.manage-flash {
  margin-bottom: 20px;
  padding: 16px 18px;
  border-radius: 20px;
  font-weight: 700;
  box-shadow: 0 12px 26px rgba(15, 23, 42, 0.05);
}

.manage-flash.is-success {
  background: #ecfdf3;
  color: #166534;
  border: 1px solid #b7e8c7;
}

.manage-flash.is-error {
  background: #fff1f2;
  color: #991b1b;
  border: 1px solid #fecdd3;
}

.manage-nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 16px;
  background: #fff;
  border: 1px solid #e1dacf;
  border-radius: 999px;
  color: #3d3933;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.05);
  transition:
    transform var(--transition-fast),
    background var(--transition-fast);
}

.manage-nav-link:hover {
  transform: translateY(-1px);
  background: #fcfaf7;
}

.manage-nav-mobile {
  display: none;
}

.manage-week-today {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 8px 14px;
  background: #111;
  border: 1px solid #111;
  border-radius: 999px;
  color: #fff;
  font-size: 0.85rem;
  font-weight: 700;
  text-decoration: none;
  transition:
    transform var(--transition-fast),
    background var(--transition-fast),
    opacity var(--transition-fast);
}

.manage-week-today:hover {
  transform: translateY(-1px);
  background: #222;
}

.manage-week-today.is-current {
  background: #f4f1eb;
  border-color: #e2d9cd;
  color: #5d554b;
}

.manage-board {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  align-items: start;
  gap: 12px;
}

.manage-day-column {
  min-width: 250px;
  display: flex;
  flex-direction: column;
  background: rgba(255, 255, 255, 0.66);
  border: 1px solid rgba(221, 228, 239, 0.92);
  border-radius: 28px;
  box-shadow: 0 18px 42px rgba(15, 23, 42, 0.06);
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.manage-day-header {
  padding: 16px 16px 14px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(247, 250, 255, 0.92));
  border-bottom: 1px solid #e8edf3;
}

.manage-day-header h2 {
  margin: 0 0 5px;
  font-size: 1.02rem;
  letter-spacing: -0.02em;
}

.manage-day-header p {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.manage-day-body {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 10px;
}

.manage-slot-card {
  position: relative;
  padding: 12px;
  background: linear-gradient(180deg, #ffffff, #fcfbf8);
  border: 1px solid #e4ddd3;
  border-radius: 22px;
  box-shadow: 0 16px 28px rgba(15, 23, 42, 0.06);
}

.manage-slot-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  bottom: 18px;
  width: 4px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--lang-en), var(--lang-de));
}

.manage-slot-card.language-en {
  background: linear-gradient(180deg, #ffffff, var(--lang-en-soft));
  border-color: #d8e4ff;
}

.manage-slot-card.language-en .manage-meta {
  background: #f6f9ff;
  border-color: #dce7ff;
}

.manage-slot-card.language-en::before {
  background: linear-gradient(180deg, var(--lang-en), #78a6f4);
}

.manage-slot-card.language-de {
  background: linear-gradient(180deg, #ffffff, var(--lang-de-soft));
  border-color: #f1deca;
}

.manage-slot-card.language-de .manage-meta {
  background: #fff8f1;
  border-color: #f4e2d0;
}

.manage-slot-card.language-de::before {
  background: linear-gradient(180deg, var(--lang-de), #f6b469);
}

.manage-slot-card.is-inactive {
  background: linear-gradient(180deg, #fffafa, #fff4f4);
  border-color: #f1d7d7;
}

.manage-slot-card.is-inactive::before {
  background: linear-gradient(180deg, #ef4444, #fb7185);
}

.manage-slot-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  padding-left: 10px;
}

.manage-slot-top h3 {
  margin: 0 0 6px;
  font-size: 1.08rem;
  letter-spacing: -0.02em;
}

.manage-slot-subtitle {
  margin: 0;
  color: #6c655d;
  font-size: 0.92rem;
  line-height: 1.4;
}

.manage-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px;
}

.manage-badge,
.manage-mini-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
}

.manage-badge {
  background: #f3f6ff;
  color: #2d5397;
  border: 1px solid #dbe5ff;
}

.manage-mini-badge {
  width: fit-content;
  background: #f8f4ee;
  color: #615447;
  border: 1px solid #ece1d3;
}

.manage-badge.is-success {
  background: #ecfdf3;
  color: #166534;
  border-color: #c7f0d6;
}

.manage-badge.is-danger {
  background: #fff1f2;
  color: #be123c;
  border-color: #fecdd3;
}

.manage-meta {
  display: grid;
  gap: 7px;
  margin-top: 14px;
  padding: 12px 14px;
  background: #f8fbff;
  border: 1px solid #e7eef7;
  border-radius: 16px;
  color: #4b5563;
  font-size: 0.9rem;
}

.manage-section {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid #f0ebe4;
}

.manage-section-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.manage-section-head h4 {
  margin: 0;
  font-size: 0.95rem;
}

.manage-section-head span {
  color: var(--muted);
  font-size: 0.82rem;
}

.manage-students {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.manage-student-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  padding: 12px;
  background: #fafcff;
  border: 1px solid #e6edf6;
  border-radius: 16px;
}

.manage-student-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.manage-student-info strong {
  font-size: 0.95rem;
}

.manage-student-info span {
  color: #586273;
  font-size: 0.88rem;
  line-height: 1.4;
  word-break: break-word;
}

.manage-inline-form {
  display: flex;
  align-self: center;
}

.manage-editor {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid #f0ebe4;
}

.manage-editor summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  color: #2f6edb;
  font-weight: 700;
  list-style: none;
}

.manage-editor summary::-webkit-details-marker {
  display: none;
}

.manage-editor summary::after {
  content: "+";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: #f2f6ff;
  border-radius: 50%;
  font-size: 1rem;
  line-height: 1;
}

.manage-editor[open] summary::after {
  content: "-";
}

.manage-form,
.manage-cancel-form,
.manage-delete-form {
  margin-top: 14px;
}

.manage-delete-form {
  margin-top: 12px;
  padding-top: 14px;
  border-top: 1px dashed #eadfd0;
}

.manage-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.manage-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.manage-field.full {
  grid-column: 1 / -1;
}

.manage-field label {
  font-weight: 700;
  font-size: 0.9rem;
  color: #413b34;
}

.manage-field input,
.manage-field select {
  width: 100%;
  min-height: 46px;
  padding: 11px 12px;
  background: #fff;
  border: 1px solid #d7d1c8;
  border-radius: 14px;
  font-size: 15px;
}

.manage-field input:focus,
.manage-field select:focus {
  border-color: #c3b29b;
  box-shadow: 0 0 0 3px rgba(191, 182, 170, 0.16);
}

.manage-scope-box {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.manage-scope-option {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: #faf7f2;
  border: 1px solid #eadfd0;
  border-radius: 14px;
  font-size: 0.9rem;
}

.manage-scope-option input {
  width: auto;
  min-height: auto;
  margin: 0;
}

.manage-field-note {
  margin: 0;
  color: #6e6a63;
  font-size: 0.83rem;
  line-height: 1.5;
}

.manage-form-actions {
  margin-top: 14px;
}

.manage-empty {
  padding: 18px 14px;
  text-align: center;
  color: var(--muted);
  background: linear-gradient(180deg, #fbfdff, #f6faff);
  border: 1px dashed #d9e3ef;
  border-radius: 18px;
  line-height: 1.5;
}

.manage-empty.small {
  padding: 12px;
  font-size: 0.9rem;
}

.manage-modal[hidden] {
  display: none;
}

.manage-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 28px;
}

.manage-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(17, 17, 17, 0.42);
  backdrop-filter: blur(8px);
}

.manage-modal-dialog {
  position: relative;
  z-index: 1;
  width: min(1100px, calc(100vw - 56px));
  max-height: calc(100vh - 56px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid rgba(223, 216, 206, 0.94);
  border-radius: 30px;
  box-shadow: 0 28px 80px rgba(15, 23, 42, 0.22);
}

.manage-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 18px;
  padding: 22px 24px 18px;
  border-bottom: 1px solid #ede6dc;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(250, 247, 242, 0.94));
}

.manage-modal-header h2 {
  margin: 4px 0 0;
  font-size: 1.45rem;
  letter-spacing: -0.03em;
}

.manage-modal-kicker {
  display: inline-flex;
  align-items: center;
  padding: 7px 10px;
  border-radius: 999px;
  background: #f7f2ea;
  border: 1px solid #eadfd0;
  color: #6a6054;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.manage-modal-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  border: 1px solid #e4d9cb;
  border-radius: 50%;
  background: #fff;
  color: #433d36;
  font-size: 1.8rem;
  line-height: 1;
  cursor: pointer;
  transition:
    transform var(--transition-fast),
    background var(--transition-fast);
}

.manage-modal-close:hover {
  transform: translateY(-1px);
  background: #faf7f2;
}

.manage-modal-frame-wrap {
  flex: 1 1 auto;
  min-height: 0;
  background: linear-gradient(180deg, #fcfbf8, #f5f7fb);
}

.manage-modal-frame {
  display: block;
  width: 100%;
  height: min(78vh, 980px);
  border: 0;
  background: transparent;
}

.manage-flash {
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.manage-flash.is-hiding {
  opacity: 0;
  transform: translateY(-6px);
}

@media (max-width: 1480px) {
  .manage-wrap {
    padding-left: 18px;
    padding-right: 18px;
  }
}

@media (max-width: 1240px) {
  .manage-header,
  .manage-weekbar {
    flex-direction: column;
    align-items: stretch;
  }

  .manage-header-actions {
    justify-content: flex-start;
  }

  .manage-weekbar-center {
    text-align: center;
  }
}

@media (max-width: 700px) {
  .manage-wrap {
    padding: 16px 12px 28px;
  }

  .manage-header,
  .manage-weekbar {
    padding: 18px 16px;
    border-radius: 22px;
  }

  .manage-header h1 {
    font-size: 1.9rem;
  }

  .manage-weekbar {
    display: grid;
    grid-template-columns: 48px minmax(0, 1fr) 48px;
    gap: 10px 12px;
    align-items: center;
  }

  .manage-weekbar-center {
    display: contents;
  }

  .manage-weekbar-label {
    grid-column: 1 / -1;
    grid-row: 1;
    margin-bottom: 0;
    text-align: center;
  }

  .manage-weekbar-center strong {
    grid-column: 1 / -1;
    grid-row: 2;
    text-align: center;
  }

  .manage-weekbar-actions {
    grid-column: 2;
    grid-row: 3;
    margin-top: 0;
    justify-content: center;
  }

  .manage-weekbar > .manage-nav-link:first-of-type,
  .manage-weekbar > .manage-nav-link:last-of-type {
    grid-row: 3;
    min-height: 44px;
    width: 44px;
    padding: 0;
    border-radius: 999px;
    font-size: 0;
  }

  .manage-weekbar > .manage-nav-link:first-of-type {
    grid-column: 1;
    justify-self: start;
  }

  .manage-weekbar > .manage-nav-link:last-of-type {
    grid-column: 3;
    justify-self: end;
  }

  .manage-weekbar > .manage-nav-link:first-of-type::before {
    content: "‹";
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1;
  }

  .manage-weekbar > .manage-nav-link:last-of-type::before {
    content: "›";
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1;
  }

  .manage-nav-desktop {
    display: none;
  }

  .manage-nav-mobile {
    display: inline;
  }

  .manage-modal {
    padding: 0;
  }

  .manage-modal-dialog {
    width: 100vw;
    max-height: 100vh;
    height: 100vh;
    border-radius: 0;
    border: 0;
  }

  .manage-modal-header {
    padding: 16px;
  }

  .manage-modal-header h2 {
    font-size: 1.2rem;
  }

  .manage-modal-frame {
    height: calc(100vh - 90px);
  }

  .manage-day-column {
    border-radius: 22px;
  }

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

  .manage-student-row,
  .manage-header-actions,
  .manage-scope-box {
    flex-direction: column;
  }

  .manage-link-btn,
  .manage-primary-btn,
  .manage-danger-btn,
  .manage-inline-form,
  .manage-inline-form button,
  .manage-cancel-form button,
  .manage-delete-form button {
    width: 100%;
  }

  .manage-weekbar-center {
    order: -1;
  }
}