/* Admin Panel CSS */

:root {
  --primary: #1e40af;
  --primary-light: #3b82f6;
  --primary-dark: #1e3a8a;
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-500: #64748b;
  --gray-700: #334155;
  --danger: #ef4444;
  --success: #22c55e;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  background: var(--gray-100);
  color: var(--gray-700);
  min-height: 100vh;
}

.admin-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
.admin-header {
  background: var(--white);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.school-logo {
  height: 40px;
  width: auto;
  margin-top: -6px;
}

.header-logo h1 {
  font-size: 1.25rem;
  color: var(--gray-700);
  font-weight: 700;
}

.admin-nav {
  display: flex;
  gap: 0.5rem;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  text-decoration: none;
  color: var(--gray-700);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.2s ease;
}

.nav-link:hover {
  background: var(--gray-100);
  color: var(--primary);
}

.nav-link svg {
  flex-shrink: 0;
}

/* Main content */
.admin-main {
  flex: 1;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* Sections */
section {
  background: var(--white);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

section h2 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.1rem;
  color: var(--gray-700);
  margin-bottom: 1.5rem;
  font-weight: 600;
}

section h2 svg {
  color: var(--primary);
}

/* Upload section */
.upload-form {
  width: 100%;
}

.upload-area {
  border: 2px dashed var(--gray-300);
  border-radius: 12px;
  padding: 3rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
  background: var(--gray-50);
}

.upload-area:hover {
  border-color: var(--primary-light);
  background: var(--gray-100);
}

.upload-area.dragover {
  border-color: var(--primary);
  background: var(--gray-100);
}

.upload-area svg {
  color: var(--gray-500);
  margin-bottom: 1rem;
}

.upload-area p {
  color: var(--gray-700);
  font-weight: 500;
}

.upload-hint {
  color: var(--gray-500) !important;
  font-size: 0.85rem !important;
  font-weight: 400 !important;
}

.upload-progress {
  margin-top: 1rem;
}

.upload-progress.hidden {
  display: none;
}

.progress-bar {
  height: 6px;
  background: var(--gray-200);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 0.5rem;
}

.progress-fill {
  height: 100%;
  background: var(--primary);
  border-radius: 3px;
  transition: width 0.3s ease;
  width: 0%;
}

#progress-text {
  font-size: 0.85rem;
  color: var(--gray-500);
}

/* Posters grid */
.posters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}

.poster-card {
  position: relative;
  background: var(--gray-50);
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--gray-200);
  transition: all 0.2s ease;
}

.poster-card:hover {
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  transform: translateY(-2px);
}

.poster-preview {
  aspect-ratio: 9 / 16;
  overflow: hidden;
  background: var(--gray-200);
}

.poster-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.poster-info {
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.poster-filename {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--gray-700);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.poster-date {
  font-size: 0.75rem;
  color: var(--gray-500);
}

.poster-duration {
  padding: 0.5rem 0.75rem;
  border-top: 1px solid var(--gray-200);
  background: var(--gray-100);
}

.duration-label {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.7rem;
  color: var(--gray-500);
  font-weight: 500;
  margin-bottom: 0.35rem;
}

.duration-label svg {
  flex-shrink: 0;
}

.duration-input-wrapper {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.duration-input {
  flex: 1;
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--gray-300);
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--gray-700);
  background: var(--white);
}

.duration-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(30, 64, 175, 0.1);
}

.duration-suffix {
  font-size: 0.7rem;
  color: var(--gray-500);
  font-weight: 500;
}

.btn-delete {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  width: 32px;
  height: 32px;
  border-radius: 6px;
  border: none;
  background: rgba(255,255,255,0.9);
  color: var(--danger);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: all 0.2s ease;
}

.poster-card:hover .btn-delete {
  opacity: 1;
}

.btn-delete:hover {
  background: var(--danger);
  color: white;
}

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 3rem;
  color: var(--gray-500);
}

.empty-state svg {
  margin-bottom: 1rem;
}

/* Events section */
.events-editor {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.events-header {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.events-header label {
  font-weight: 500;
  color: var(--gray-700);
}

.events-header input {
  flex: 1;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--gray-300);
  border-radius: 6px;
  font-size: 0.9rem;
}

.events-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.event-row {
  display: grid;
  grid-template-columns: 1fr 1fr 2fr auto;
  gap: 0.5rem;
  align-items: center;
}

.event-row input {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--gray-300);
  border-radius: 6px;
  font-size: 0.9rem;
}

.event-row input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

.btn-remove-event {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  border: 1px solid var(--gray-300);
  background: var(--white);
  color: var(--gray-500);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.btn-remove-event:hover {
  border-color: var(--danger);
  color: var(--danger);
}

.btn-add-event,
.btn-save-events {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
}

.btn-add-event {
  background: var(--gray-100);
  color: var(--gray-700);
  width: fit-content;
}

.btn-add-event:hover {
  background: var(--gray-200);
}

.btn-save-events {
  background: var(--primary);
  color: white;
}

.btn-save-events:hover {
  background: var(--primary-dark);
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal.hidden {
  display: none;
}

.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.5);
}

.modal-content {
  position: relative;
  background: var(--white);
  border-radius: 12px;
  padding: 1.5rem;
  max-width: 400px;
  width: 90%;
  box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1);
}

.modal-content h3 {
  font-size: 1.1rem;
  color: var(--gray-700);
  margin-bottom: 0.5rem;
}

.modal-content p {
  color: var(--gray-500);
  margin-bottom: 1rem;
}

.modal-actions {
  display: flex;
  gap: 0.5rem;
  justify-content: flex-end;
}

.btn-cancel,
.btn-confirm-delete {
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid;
}

.btn-cancel {
  background: var(--white);
  border-color: var(--gray-300);
  color: var(--gray-700);
}

.btn-cancel:hover {
  background: var(--gray-100);
}

.btn-confirm-delete {
  background: var(--danger);
  border-color: var(--danger);
  color: white;
}

.btn-confirm-delete:hover {
  background: #dc2626;
}

/* Toast notifications */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 1001;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  padding: 1rem 1.5rem;
  border-radius: 8px;
  color: white;
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
  opacity: 0;
  transform: translateY(1rem);
  transition: all 0.3s ease;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.toast-success {
  background: var(--success);
}

.toast-error {
  background: var(--danger);
}

.toast-info {
  background: var(--primary);
}

/* Responsive */
@media (max-width: 768px) {
  .admin-header {
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
  }

  .admin-main {
    padding: 1rem;
  }

  .event-row {
    grid-template-columns: 1fr;
  }

  .btn-remove-event {
    width: 100%;
  }

  .posters-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }

  .toast-container {
    left: 1rem;
    right: 1rem;
    bottom: 1rem;
  }
}