/* ============================================
   صفحة الملفات — Files Page
   Download links with images for software
   Admin can add/edit/delete
   ============================================ */

/* ===== PAGE HEADER ===== */
.files-hero {
  padding: 140px 20px 40px;
  text-align: center;
  position: relative;
}

.files-hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  color: var(--accent);
  text-shadow: 0 0 30px rgba(0, 212, 255, 0.4);
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}

.files-hero p {
  font-size: 1.1rem;
  color: var(--gray-light);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ===== ADMIN BAR ===== */
.files-admin-bar {
  max-width: 1200px;
  margin: 0 auto 30px;
  padding: 0 20px;
  display: none;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
}

.files-admin-bar.visible {
  display: flex;
}

.admin-bar-info {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.95rem;
}

.admin-bar-info::before {
  content: '';
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

/* ===== FILES GRID ===== */
.files-grid {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px 60px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.file-card {
  background: linear-gradient(145deg, rgba(10, 20, 40, 0.9), rgba(5, 13, 26, 0.95));
  border: 1px solid rgba(0, 170, 255, 0.2);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
}

.file-card:hover {
  border-color: rgba(0, 212, 255, 0.5);
  box-shadow: 0 12px 40px rgba(0, 170, 255, 0.2), 0 0 20px rgba(0, 212, 255, 0.1);
  transform: translateY(-4px);
}

.file-card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  background: var(--dark-3);
  border-bottom: 1px solid rgba(0, 170, 255, 0.15);
  display: block;
}

.file-card-image-placeholder {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, var(--dark-3), var(--dark-4));
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid rgba(0, 170, 255, 0.15);
  font-size: 3rem;
  color: rgba(0, 170, 255, 0.3);
}

.file-card-body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.file-card-category {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.3);
  padding: 3px 12px;
  border-radius: 20px;
  margin-bottom: 10px;
  align-self: flex-start;
}

.file-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--light);
  margin-bottom: 8px;
  line-height: 1.4;
}

.file-card-desc {
  font-size: 0.9rem;
  color: var(--gray-light);
  line-height: 1.6;
  margin-bottom: 16px;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.file-card-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* ===== BUTTONS ===== */
.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #001020;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  flex: 1;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(0, 170, 255, 0.3);
}

.btn-download:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 212, 255, 0.5);
  filter: brightness(1.15);
}

.btn-download:active {
  transform: translateY(0);
}

.btn-download svg {
  width: 18px;
  height: 18px;
}

.btn-edit, .btn-delete {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-weight: 600;
  font-size: 0.85rem;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid;
  cursor: pointer;
  transition: var(--transition);
  background: transparent;
}

.btn-edit {
  color: var(--accent);
  border-color: rgba(0, 212, 255, 0.4);
}

.btn-edit:hover {
  background: rgba(0, 212, 255, 0.15);
  border-color: var(--accent);
}

.btn-delete {
  color: #ff6b6b;
  border-color: rgba(255, 107, 107, 0.4);
}

.btn-delete:hover {
  background: rgba(255, 107, 107, 0.15);
  border-color: #ff6b6b;
}

.btn-add {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--accent-dark), var(--primary));
  color: #001020;
  font-weight: 700;
  font-size: 1rem;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(0, 170, 255, 0.3);
}

.btn-add:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 212, 255, 0.5);
  filter: brightness(1.15);
}

.btn-add svg, .btn-edit svg, .btn-delete svg {
  width: 16px;
  height: 16px;
}

.file-card-admin-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(0, 170, 255, 0.1);
}

/* ===== MODAL ===== */
.files-modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 5, 16, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.files-modal-overlay.visible {
  display: flex;
}

.files-modal {
  background: linear-gradient(145deg, var(--dark-3), var(--dark-2));
  border: 1px solid rgba(0, 212, 255, 0.3);
  border-radius: var(--radius);
  max-width: 560px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8), 0 0 40px rgba(0, 170, 255, 0.15);
  animation: modal-slide-in 0.3s ease;
}

@keyframes modal-slide-in {
  from { opacity: 0; transform: translateY(20px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.files-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid rgba(0, 170, 255, 0.15);
}

.files-modal-header h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
}

.files-modal-close {
  background: none;
  border: none;
  color: var(--gray);
  font-size: 1.8rem;
  cursor: pointer;
  padding: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: var(--transition);
  line-height: 1;
}

.files-modal-close:hover {
  color: var(--light);
  background: rgba(0, 170, 255, 0.15);
}

.files-modal-body {
  padding: 24px;
}

/* ===== FORM ===== */
.files-form-group {
  margin-bottom: 20px;
}

.files-form-group label {
  display: block;
  font-weight: 600;
  color: var(--gray-light);
  margin-bottom: 8px;
  font-size: 0.95rem;
}

.files-form-group input[type="text"],
.files-form-group input[type="url"],
.files-form-group textarea,
.files-form-group select {
  width: 100%;
  background: rgba(0, 5, 16, 0.6);
  border: 1px solid rgba(0, 170, 255, 0.25);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--light);
  font-size: 1rem;
  font-family: inherit;
  transition: var(--transition);
  outline: none;
}

.files-form-group input:focus,
.files-form-group textarea:focus,
.files-form-group select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.15);
}

.files-form-group textarea {
  resize: vertical;
  min-height: 80px;
}

.files-form-group input::placeholder,
.files-form-group textarea::placeholder {
  color: rgba(138, 164, 200, 0.5);
}

.files-form-hint {
  font-size: 0.8rem;
  color: var(--gray);
  margin-top: 6px;
}

.files-image-preview {
  margin-top: 12px;
  width: 100%;
  max-height: 180px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(0, 170, 255, 0.2);
  display: none;
}

.files-image-preview.visible {
  display: block;
}

.files-modal-footer {
  display: flex;
  gap: 12px;
  padding: 0 24px 24px;
  justify-content: flex-start;
}

.btn-save {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--accent), var(--primary));
  color: #001020;
  font-weight: 700;
  font-size: 1rem;
  padding: 12px 32px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(0, 212, 255, 0.3);
}

.btn-save:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 212, 255, 0.5);
  filter: brightness(1.15);
}

.btn-save:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-cancel {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--gray-light);
  font-weight: 600;
  font-size: 1rem;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(138, 164, 200, 0.3);
  cursor: pointer;
  transition: var(--transition);
}

.btn-cancel:hover {
  border-color: var(--gray-light);
  color: var(--light);
}

/* ===== EMPTY STATE ===== */
.files-empty {
  max-width: 600px;
  margin: 60px auto;
  text-align: center;
  padding: 40px 20px;
}

.files-empty-icon {
  font-size: 4rem;
  color: rgba(0, 170, 255, 0.2);
  margin-bottom: 20px;
}

.files-empty h3 {
  font-size: 1.5rem;
  color: var(--gray-light);
  margin-bottom: 10px;
}

.files-empty p {
  color: var(--gray);
  font-size: 1rem;
}

/* ===== TOAST NOTIFICATION ===== */
.files-toast {
  position: fixed;
  bottom: 30px;
  right: 50%;
  transform: translateX(50%) translateY(100px);
  background: linear-gradient(135deg, var(--dark-3), var(--dark-2));
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 14px 28px;
  color: var(--light);
  font-weight: 600;
  z-index: 3000;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5), 0 0 20px rgba(0, 212, 255, 0.3);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  opacity: 0;
  max-width: 90%;
  text-align: center;
}

.files-toast.visible {
  transform: translateX(50%) translateY(0);
  opacity: 1;
}

.files-toast.error {
  border-color: #ff6b6b;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5), 0 0 20px rgba(255, 107, 107, 0.3);
}

/* ===== LOADING ===== */
.files-loading {
  text-align: center;
  padding: 80px 20px;
  color: var(--gray);
  font-size: 1.1rem;
}

.files-loading-spinner {
  display: inline-block;
  width: 40px;
  height: 40px;
  border: 3px solid rgba(0, 170, 255, 0.2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-bottom: 16px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .files-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .files-admin-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-add {
    justify-content: center;
  }

  .files-modal-footer {
    flex-direction: column-reverse;
  }

  .btn-save, .btn-cancel {
    width: 100%;
    justify-content: center;
  }
}