.announcements-page {
  width: min(1120px, 100%);
  margin: 0 auto;
  padding: clamp(18px, 3vw, 38px);
  color: var(--text-primary, #f8fafc);
}

.announcements-page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  margin-bottom: 24px;
}

.announcements-page-header h1 {
  margin: 2px 0 7px;
  color: var(--text-primary, #f8fafc);
  font-size: clamp(1.65rem, 3vw, 2.2rem);
  font-weight: 820;
  letter-spacing: -.035em;
}

.announcements-eyebrow {
  margin: 0;
  color: #818cf8;
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.announcements-page-subtitle {
  max-width: 720px;
  margin: 0;
  color: var(--text-secondary, #94a3b8);
  font-size: .94rem;
  line-height: 1.65;
}

.announcements-unread-summary {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 9px;
  padding: 10px 14px;
  color: var(--text-secondary, #cbd5e1);
  font-size: .82rem;
  font-weight: 700;
  border: 1px solid rgba(129, 140, 248, .22);
  border-radius: 999px;
  background: rgba(99, 102, 241, .09);
}

.announcements-unread-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #818cf8;
  box-shadow: 0 0 12px rgba(129, 140, 248, .55);
}

.announcement-list {
  display: grid;
  gap: 16px;
}

.announcement-card,
.announcement-editor,
.announcement-empty-state {
  border: 1px solid rgba(148, 163, 184, .16);
  border-radius: 20px;
  background: rgba(15, 23, 42, .42);
  box-shadow: 0 12px 28px rgba(0, 0, 0, .08);
}

.announcement-card {
  padding: clamp(18px, 2.5vw, 26px);
  transition: border-color .18s ease, transform .18s ease;
}

.announcement-card:hover {
  border-color: rgba(129, 140, 248, .34);
  transform: translateY(-1px);
}

.announcement-card.is-read {
  opacity: .88;
}

.announcement-card-topline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.announcement-category,
.announcement-status-chip {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: .72rem;
  font-weight: 800;
  line-height: 1.2;
}

.announcement-category-general {
  color: #c7d2fe;
  border: 1px solid rgba(129, 140, 248, .28);
  background: rgba(99, 102, 241, .14);
}

.announcement-category-exam {
  color: #fed7aa;
  border: 1px solid rgba(251, 146, 60, .33);
  background: rgba(249, 115, 22, .14);
}

.announcement-category-deadline {
  color: #99f6e4;
  border: 1px solid rgba(45, 212, 191, .28);
  background: rgba(20, 184, 166, .13);
}

.announcement-category-urgent {
  color: #fecdd3;
  border: 1px solid rgba(251, 113, 133, .32);
  background: rgba(244, 63, 94, .14);
}

.announcement-status-chip.is-unread {
  color: #e0e7ff;
  border: 1px solid rgba(129, 140, 248, .26);
  background: rgba(99, 102, 241, .13);
}

.announcement-status-chip.is-acknowledged,
.announcement-status-chip.is-published {
  color: #a7f3d0;
  border: 1px solid rgba(52, 211, 153, .24);
  background: rgba(16, 185, 129, .11);
}

.announcement-status-chip.is-draft {
  color: #fde68a;
  border: 1px solid rgba(250, 204, 21, .24);
  background: rgba(234, 179, 8, .1);
}

.announcement-status-chip.is-archived,
.announcement-status-chip.is-expired {
  color: #cbd5e1;
  border: 1px solid rgba(148, 163, 184, .22);
  background: rgba(100, 116, 139, .12);
}

.announcement-card-title {
  margin: 0 0 12px;
  color: var(--text-primary, #f8fafc);
  font-size: clamp(1.12rem, 2vw, 1.35rem);
  font-weight: 780;
  line-height: 1.45;
}

.announcement-card-message,
.announcement-modal-message {
  margin: 0;
  color: var(--text-secondary, #cbd5e1);
  font-size: .94rem;
  line-height: 1.75;
  white-space: pre-line;
  overflow-wrap: anywhere;
}

.announcement-image {
  display: block;
  width: 100%;
  max-height: 430px;
  margin: 14px 0 18px;
  border: 1px solid rgba(148, 163, 184, .18);
  border-radius: 16px;
  background: rgba(15, 23, 42, .4);
  object-fit: contain;
  cursor: zoom-in;
}

.announcement-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 18px;
  color: var(--text-muted, #94a3b8);
  font-size: .76rem;
  line-height: 1.5;
}

.announcement-card-actions,
.announcement-modal-actions,
.announcement-form-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.announcement-card-actions {
  margin-top: 18px;
}

.announcement-button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid transparent;
  border-radius: 12px;
  color: inherit;
  font: inherit;
  font-size: .86rem;
  font-weight: 750;
  cursor: pointer;
  transition: transform .16s ease, filter .16s ease, border-color .16s ease;
}

.announcement-button:hover:not(:disabled) {
  filter: brightness(1.08);
  transform: translateY(-1px);
}

.announcement-button:focus-visible,
.announcement-input:focus-visible,
.announcement-modal-close:focus-visible {
  outline: 3px solid rgba(129, 140, 248, .68);
  outline-offset: 3px;
}

.announcement-button:disabled {
  cursor: wait;
  opacity: .58;
}

.announcement-button-primary {
  color: #fff;
  background: linear-gradient(135deg, #6366f1, #4f46e5);
  box-shadow: 0 8px 20px rgba(79, 70, 229, .23);
}

.announcement-button-secondary {
  color: var(--text-primary, #f8fafc);
  border-color: rgba(148, 163, 184, .32);
  background: rgba(30, 41, 59, .36);
}

.announcement-button-quiet {
  color: var(--text-secondary, #cbd5e1);
  border-color: rgba(148, 163, 184, .16);
  background: transparent;
}

.announcement-empty-state {
  display: grid;
  justify-items: center;
  gap: 8px;
  padding: clamp(40px, 8vw, 82px) 22px;
  text-align: center;
}

.announcement-empty-icon {
  display: grid;
  width: 54px;
  height: 54px;
  place-items: center;
  margin-bottom: 8px;
  border: 1px solid rgba(129, 140, 248, .2);
  border-radius: 18px;
  color: #a5b4fc;
  background: rgba(99, 102, 241, .12);
  font-size: 1.55rem;
}

.announcement-empty-state h2 {
  margin: 0;
  color: var(--text-primary, #f8fafc);
  font-size: 1.25rem;
}

.announcement-empty-state p,
.announcement-list-empty {
  margin: 0;
  color: var(--text-secondary, #94a3b8);
  font-size: .9rem;
  line-height: 1.65;
}

.announcement-loading {
  padding: 52px 24px;
  color: var(--text-secondary, #94a3b8);
  text-align: center;
}

.announcement-editor {
  margin-bottom: 28px;
  padding: clamp(18px, 3vw, 30px);
}

.announcement-editor-heading {
  margin-bottom: 20px;
}

.announcement-editor-heading h2,
.announcement-list-heading h2 {
  margin: 6px 0 0;
  color: var(--text-primary, #f8fafc);
  font-size: 1.3rem;
  font-weight: 780;
}

.announcement-form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.announcement-field {
  display: grid;
  min-width: 0;
  gap: 7px;
  color: var(--text-secondary, #cbd5e1);
  font-size: .82rem;
  font-weight: 700;
}

.announcement-field-wide {
  grid-column: 1 / -1;
}

.announcement-field-label {
  line-height: 1.4;
}

.announcement-input {
  width: 100%;
  min-width: 0;
  min-height: 44px;
  padding: 10px 12px;
  border: 1px solid rgba(148, 163, 184, .24);
  border-radius: 11px;
  color: var(--text-primary, #f8fafc);
  background: rgba(15, 23, 42, .42);
  font: inherit;
  font-size: .9rem;
}

.announcement-input::placeholder {
  color: var(--text-muted, #94a3b8);
  opacity: .82;
}

.announcement-input option {
  color: #0f172a;
  background: #fff;
}

.announcement-message-input {
  min-height: 132px;
  resize: vertical;
  line-height: 1.65;
}

.announcement-input[type="file"] {
  padding: 8px;
}

.announcement-input[type="file"]::file-selector-button {
  margin-right: 10px;
  padding: 8px 11px;
  border: 0;
  border-radius: 8px;
  color: #fff;
  background: #4f46e5;
  font: inherit;
  font-size: .8rem;
  font-weight: 700;
  cursor: pointer;
}

.announcement-help {
  color: var(--text-muted, #94a3b8);
  font-size: .74rem;
  font-weight: 500;
}

.announcement-upload-preview {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 12px;
  border: 1px solid rgba(148, 163, 184, .18);
  border-radius: 14px;
  background: rgba(15, 23, 42, .28);
}

.announcement-upload-preview[hidden],
.announcement-course-field[hidden] {
  display: none;
}

.announcement-upload-preview-image {
  display: block;
  width: 100%;
  max-height: 250px;
  border-radius: 10px;
  object-fit: contain;
}

.announcement-feedback {
  min-height: 1.3em;
  margin: 12px 0;
  color: var(--text-muted, #94a3b8);
  font-size: .82rem;
}

.announcement-feedback.is-error {
  color: #fb7185;
}

.announcement-feedback.is-loading {
  color: #a5b4fc;
}

.announcement-form-actions {
  justify-content: flex-end;
  padding-top: 4px;
}

.announcement-list-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin: 0 0 14px;
}

.announcement-list-heading h2 {
  margin: 0;
}

.announcement-list-count {
  color: var(--text-muted, #94a3b8);
  font-size: .82rem;
}

.announcement-list-empty {
  padding: 28px 20px;
  border: 1px dashed rgba(148, 163, 184, .25);
  border-radius: 14px;
  text-align: center;
}

.announcement-management-card .announcement-card-title {
  font-size: 1.08rem;
}

.announcement-management-image {
  max-width: 700px;
  max-height: 240px;
}

.announcement-management-stats {
  margin: 12px 0 0;
  color: var(--text-muted, #94a3b8);
  font-size: .78rem;
}

.announcement-nav-badge {
  display: inline-flex;
  flex: 0 0 auto;
  min-width: 19px;
  height: 19px;
  align-items: center;
  justify-content: center;
  margin-left: auto;
  padding: 0 5px;
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 999px;
  color: #fff;
  background: #e54868;
  font-size: .66rem;
  font-weight: 850;
}

.announcement-modal-open {
  overflow: hidden;
}

.announcement-modal-overlay {
  position: fixed;
  z-index: 10020;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(3, 7, 18, .72);
  -webkit-backdrop-filter: blur(7px);
  backdrop-filter: blur(7px);
  animation: announcement-fade-in .18s ease-out both;
}

.announcement-modal {
  position: relative;
  width: min(650px, 100%);
  max-height: min(90vh, 860px);
  overflow: auto;
  padding: clamp(24px, 4vw, 42px);
  border: 1px solid rgba(129, 140, 248, .38);
  border-radius: 24px;
  color: var(--text-primary, #f8fafc);
  background: linear-gradient(150deg, rgba(22, 32, 59, .98), rgba(15, 23, 42, .98));
  box-shadow: 0 30px 90px rgba(0, 0, 0, .42), 0 0 0 1px rgba(255, 255, 255, .03) inset;
  animation: announcement-modal-in .22s ease-out both;
}

.announcement-modal-close {
  position: absolute;
  top: 13px;
  right: 15px;
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border: 0;
  border-radius: 12px;
  color: #cbd5e1;
  background: transparent;
  font-size: 1.9rem;
  line-height: 1;
  cursor: pointer;
}

.announcement-modal-close:hover {
  color: #fff;
  background: rgba(148, 163, 184, .12);
}

.announcement-modal-icon {
  display: grid;
  width: 58px;
  height: 58px;
  place-items: center;
  margin: 0 auto 12px;
  border: 1px solid rgba(251, 146, 60, .22);
  border-radius: 20px;
  background: rgba(249, 115, 22, .13);
  font-size: 1.7rem;
}

.announcement-modal-eyebrow {
  margin: 0;
  color: #a5b4fc;
  font-size: .8rem;
  font-weight: 750;
  text-align: center;
}

.announcement-modal-heading {
  margin: 4px 0 18px;
  color: var(--text-primary, #fff);
  font-size: clamp(1.25rem, 3vw, 1.65rem);
  font-weight: 820;
  text-align: center;
}

.announcement-modal-title {
  margin: 12px 0 8px;
  color: var(--text-primary, #fff);
  font-size: clamp(1.15rem, 2.7vw, 1.45rem);
  font-weight: 790;
  line-height: 1.45;
}

.announcement-modal-content {
  margin-top: 13px;
  padding: clamp(15px, 2.6vw, 22px);
  border: 1px solid rgba(148, 163, 184, .17);
  border-radius: 17px;
  background: rgba(30, 41, 59, .47);
}

.announcement-modal-content .announcement-image {
  max-height: 320px;
  margin: 0 0 16px;
  border-radius: 12px;
}

.announcement-modal-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin-top: 14px;
  color: #94a3b8;
  font-size: .76rem;
}

.announcement-modal-actions {
  justify-content: center;
  margin-top: 18px;
}

.announcement-modal-actions .announcement-button {
  min-width: min(210px, 100%);
  flex: 1 1 180px;
}

.announcement-image-viewer {
  position: fixed;
  z-index: 10040;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(1, 4, 12, .9);
}

.announcement-image-viewer-close {
  position: fixed;
  top: 18px;
  right: 20px;
  min-height: 40px;
  padding: 8px 14px;
  border: 1px solid rgba(255, 255, 255, .25);
  border-radius: 10px;
  color: #fff;
  background: rgba(15, 23, 42, .8);
  font: inherit;
  cursor: pointer;
}

.announcement-image-viewer-image {
  display: block;
  max-width: min(1100px, 100%);
  max-height: 88vh;
  object-fit: contain;
  border-radius: 12px;
}

body.light-theme .announcement-card,
body.light-theme .announcement-editor,
body.light-theme .announcement-empty-state {
  border-color: rgba(100, 116, 139, .16);
  background: rgba(255, 255, 255, .82);
  box-shadow: 0 12px 32px rgba(30, 64, 110, .06);
}

body.light-theme .announcement-card:hover {
  border-color: rgba(79, 70, 229, .3);
}

body.light-theme .announcement-category-general {
  color: #4338ca;
  background: #eef2ff;
}

body.light-theme .announcement-category-exam {
  color: #c2410c;
  background: #fff7ed;
}

body.light-theme .announcement-category-deadline {
  color: #0f766e;
  background: #f0fdfa;
}

body.light-theme .announcement-category-urgent {
  color: #be123c;
  background: #fff1f2;
}

body.light-theme .announcement-status-chip.is-unread {
  color: #4338ca;
  background: #eef2ff;
}

body.light-theme .announcement-status-chip.is-acknowledged,
body.light-theme .announcement-status-chip.is-published {
  color: #047857;
  background: #ecfdf5;
}

body.light-theme .announcement-status-chip.is-draft {
  color: #a16207;
  background: #fefce8;
}

body.light-theme .announcement-status-chip.is-archived,
body.light-theme .announcement-status-chip.is-expired {
  color: #475569;
  background: #f1f5f9;
}

body.light-theme .announcement-input {
  color: #0f172a;
  border-color: #cbd5e1;
  background: rgba(255, 255, 255, .94);
}

body.light-theme .announcement-button-secondary {
  color: #253252;
  border-color: #cbd5e1;
  background: #fff;
}

body.light-theme .announcement-button-quiet {
  color: #475569;
  border-color: #dbe3ee;
}

body.light-theme .announcement-modal {
  background: linear-gradient(150deg, #17233f, #0f172a);
}

@keyframes announcement-fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes announcement-modal-in {
  from { opacity: 0; transform: translateY(8px) scale(.99); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@media (max-width: 680px) {
  .announcements-page {
    padding: 18px 14px 28px;
  }

  .announcements-page-header {
    display: grid;
    align-items: start;
    gap: 14px;
  }

  .announcements-unread-summary {
    justify-self: start;
  }

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

  .announcement-field-wide {
    grid-column: auto;
  }

  .announcement-list-heading {
    align-items: flex-end;
  }

  .announcement-modal-overlay {
    align-items: end;
    padding: 10px;
  }

  .announcement-modal {
    width: 100%;
    max-height: 92vh;
    padding: 26px 18px 18px;
    border-radius: 22px 22px 16px 16px;
  }

  .announcement-modal-content {
    padding: 14px;
  }

  .announcement-modal-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .announcement-modal-actions .announcement-button {
    width: 100%;
  }

  .announcement-form-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .announcement-form-actions .announcement-button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .announcement-modal-overlay,
  .announcement-modal {
    animation: none;
  }
}