:root {
  color-scheme: light dark;
  font-family: "Inter", "Segoe UI", sans-serif;
  background-color: #f5f5f5;
  color: #1f2933;
}

body {
  margin: 0;
  background-color: inherit;
}

.admin-shell {
  min-height: 100vh;
  display: flex;
  align-items: stretch;
  justify-content: center;
  padding: 2rem 1rem;
}

.admin-card {
  width: min(100%, 1080px);
  background: #ffffffcc;
  backdrop-filter: blur(8px);
  border-radius: 18px;
  box-shadow: 0 20px 60px rgba(15, 23, 42, 0.15);
  padding: 2.5rem;
}

.admin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  border-bottom: 1px solid rgba(148, 163, 184, 0.45);
  padding-bottom: 1.5rem;
  margin-bottom: 2rem;
}

.admin-header h1 {
  margin: 0;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  color: #0f172a;
}

.admin-nav {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.admin-nav button {
  border: none;
  background: rgba(148, 163, 184, 0.2);
  color: #1f2933;
  padding: 0.6rem 1rem;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
}

.admin-nav button.active,
.admin-nav button:hover {
  background: #2563eb;
  color: #fff;
  transform: translateY(-1px);
}

.admin-content {
  display: grid;
  gap: 2rem;
}

.section-stack {
  display: grid;
  gap: 2rem;
}

.section-card {
  background: #ffffff;
  border-radius: 16px;
  padding: 1.5rem;
  border: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
}

.section-card h2 {
  margin-top: 0;
  margin-bottom: 1rem;
  font-size: 1.35rem;
  color: #0f172a;
}

.list {
  display: grid;
  gap: 0.75rem;
}

.list-item {
  border: 1px solid rgba(15, 23, 42, 0.08);
  padding: 1rem;
  border-radius: 12px;
  display: grid;
  gap: 0.35rem;
  background: #f8fafc;
}

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

button, input, textarea {
  font: inherit;
}

.primary-btn,
.secondary-btn {
  border-radius: 8px;
  border: none;
  padding: 0.55rem 1.1rem;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.primary-btn {
  background: linear-gradient(120deg, #2563eb, #9333ea);
  color: #fff;
  box-shadow: 0 10px 25px rgba(79, 70, 229, 0.4);
}

.primary-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 35px rgba(79, 70, 229, 0.45);
}

.secondary-btn {
  background: rgba(148, 163, 184, 0.25);
  color: #0f172a;
}

.secondary-btn:hover {
  transform: translateY(-1px);
  background: rgba(148, 163, 184, 0.35);
}

form {
  display: grid;
  gap: 1rem;
}

.field {
  display: grid;
  gap: 0.4rem;
}

.field label {
  font-weight: 600;
  color: #1f2933;
}

.field input,
.field textarea {
  border-radius: 8px;
  border: 1px solid rgba(148, 163, 184, 0.6);
  padding: 0.65rem 0.75rem;
  background: rgba(255, 255, 255, 0.9);
}

.field textarea {
  min-height: 140px;
  resize: vertical;
}

.image-field {
  gap: 0.6rem;
}

.image-preview {
  border: 1px dashed rgba(148, 163, 184, 0.6);
  border-radius: 10px;
  padding: 0.5rem;
  background: rgba(248, 250, 252, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 140px;
}

.image-preview img {
  max-width: 100%;
  max-height: 220px;
  display: block;
  object-fit: contain;
  border-radius: 6px;
}

.upload-actions {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
}

.upload-progress {
  width: 100%;
  height: 0.6rem;
  accent-color: #2563eb;
}

.upload-status {
  margin: 0;
}

.helper-text {
  font-size: 0.85rem;
  color: #64748b;
}

.error-banner {
  color: #b91c1c;
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.3);
  padding: 0.75rem 1rem;
  border-radius: 10px;
}

.success-banner {
  color: #166534;
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.32);
  padding: 0.75rem 1rem;
  border-radius: 10px;
}

.login-card {
  max-width: 420px;
  margin: 5vh auto;
  padding: 2.5rem 2rem;
  background: #ffffff;
  border-radius: 18px;
  border: 1px solid rgba(148, 163, 184, 0.4);
  box-shadow: 0 35px 80px rgba(15, 23, 42, 0.15);
}

.login-card h1 {
  margin: 0 0 1rem;
  text-align: center;
}

.login-card form {
  margin-top: 1.5rem;
}

.validation-error {
  color: #b91c1c;
  font-size: 0.85rem;
}

.loading-indicator {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: #0f172a;
}

.loading-indicator::before {
  content: "";
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid rgba(37, 99, 235, 0.35);
  border-top-color: #2563eb;
  animation: spin 0.8s linear infinite;
}

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

@media (max-width: 768px) {
  .admin-card {
    padding: 1.75rem;
  }

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