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

:root {
  --bg: #f7f7f8;
  --card-bg: #ffffff;
  --text: #1a1a1a;
  --muted: #6b7280;
  --accent: #f6821f;
  --border: #e5e7eb;
}

body {
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-header {
  text-align: center;
  padding: 3rem 1.5rem 2rem;
}

.site-header h1 {
  font-size: 2rem;
  letter-spacing: -0.02em;
}

.tagline {
  color: var(--muted);
  margin-top: 0.25rem;
}

main {
  flex: 1;
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
  padding: 0 1.5rem 3rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: #e5e7eb;
}

.card-body {
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
}

.card-body h3 {
  font-size: 1.05rem;
}

.card-body p {
  color: var(--muted);
  font-size: 0.9rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.tag {
  background: #fef1e6;
  color: var(--accent);
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
}

.empty {
  text-align: center;
  color: var(--muted);
  padding: 3rem 0;
}

.site-footer {
  text-align: center;
  padding: 1.5rem;
  color: var(--muted);
  font-size: 0.85rem;
}

/* modal */
.modal {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

.modal[hidden] {
  display: none;
}

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

.modal-content {
  position: relative;
  background: var(--card-bg);
  border-radius: 12px;
  max-width: 560px;
  width: calc(100% - 2rem);
  max-height: 90vh;
  overflow-y: auto;
  padding: 1.5rem;
}

.modal-content img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 1rem;
  background: #e5e7eb;
}

.modal-content h2 {
  margin-bottom: 0.5rem;
}

.modal-content .tags {
  margin-bottom: 0.75rem;
}

.modal-content p {
  color: var(--text);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.modal-content a {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
}

.modal-close {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background: none;
  border: none;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  color: var(--muted);
}

/* admin */
.admin-layout {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

.admin-form {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}

.admin-form label {
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.admin-form input,
.admin-form textarea {
  font: inherit;
  padding: 0.5rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 6px;
}

.admin-form textarea {
  resize: vertical;
  min-height: 5rem;
}

.admin-form button {
  align-self: flex-start;
  background: var(--accent);
  color: white;
  border: none;
  padding: 0.6rem 1.4rem;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
}

.admin-form button.secondary {
  background: var(--border);
  color: var(--text);
}

.admin-list-item {
  display: flex;
  gap: 1rem;
  align-items: center;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem;
  margin-bottom: 0.75rem;
}

.admin-list-item img {
  width: 72px;
  height: 54px;
  object-fit: cover;
  border-radius: 6px;
  background: #e5e7eb;
  flex-shrink: 0;
}

.admin-list-item .info {
  flex: 1;
  min-width: 0;
}

.admin-list-item .info h3 {
  font-size: 0.95rem;
}

.admin-list-item .actions {
  display: flex;
  gap: 0.5rem;
}

.admin-list-item .actions button {
  font: inherit;
  padding: 0.3rem 0.7rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: white;
  cursor: pointer;
}

.status-message {
  font-size: 0.9rem;
  padding: 0.6rem 0.8rem;
  border-radius: 6px;
}

.status-message.error {
  background: #fee2e2;
  color: #b91c1c;
}

.status-message.success {
  background: #dcfce7;
  color: #15803d;
}