:root {
  --admin-bg: #0a0a0f;
  --admin-surface: #14141c;
  --admin-border: #2a2a3a;
  --admin-text: #e8e8ed;
  --admin-text-muted: #8888a0;
  --admin-accent: #c12841;
  --admin-accent-hover: #d93a55;
  --admin-danger: #ff4444;
  --admin-input-bg: #1e1e2a;
  --admin-radius: 8px;
  --admin-shadow: 0 4px 24px rgba(0,0,0,0.4);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--admin-bg);
  color: var(--admin-text);
  min-height: 100vh;
}

/* LOGIN */
.admin-login {
  position: fixed; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: var(--admin-bg);
  z-index: 9999;
}
.admin-login__box {
  background: var(--admin-surface);
  border: 1px solid var(--admin-border);
  border-radius: 12px;
  padding: 40px;
  width: 360px;
  max-width: 90vw;
}
.admin-login__brand {
  font-size: 1.3rem; font-weight: 800;
  margin-bottom: 4px;
}
.admin-login__hint {
  color: var(--admin-text-muted);
  font-size: 0.85rem;
  margin-bottom: 20px;
}
.admin-login__error {
  color: var(--admin-danger);
  font-size: 0.85rem;
  margin-bottom: 12px;
  display: none;
}
.admin-login__error.visible { display: block; }
.admin-login input {
  width: 100%;
  padding: 12px 14px;
  margin-bottom: 12px;
  background: var(--admin-input-bg);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius);
  color: var(--admin-text);
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s;
}
.admin-login input:focus {
  border-color: var(--admin-accent);
}
.admin-login button {
  width: 100%;
  padding: 12px;
  background: var(--admin-accent);
  border: none;
  border-radius: var(--admin-radius);
  color: #fff;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}
.admin-login button:hover {
  background: var(--admin-accent-hover);
}

/* NAV */
.admin-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: var(--admin-surface);
  border-bottom: 1px solid var(--admin-border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.admin-nav__brand {
  font-weight: 800;
  font-size: 1.05rem;
}
.admin-nav__actions {
  display: flex;
  gap: 10px;
}

/* LAYOUT */
.admin-layout {
  display: flex;
  min-height: calc(100vh - 57px);
}
.admin-sidebar {
  width: 200px;
  min-width: 200px;
  background: var(--admin-surface);
  border-right: 1px solid var(--admin-border);
  padding: 16px 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.admin-tab {
  background: none;
  border: none;
  color: var(--admin-text-muted);
  padding: 10px 20px;
  text-align: left;
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  border-left: 3px solid transparent;
  font-family: inherit;
}
.admin-tab:hover {
  color: var(--admin-text);
  background: rgba(255,255,255,0.03);
}
.admin-tab.active {
  color: var(--admin-accent);
  background: rgba(193,40,65,0.08);
  border-left-color: var(--admin-accent);
}

/* MAIN */
.admin-main {
  flex: 1;
  padding: 32px;
  overflow-y: auto;
}
.admin-panel { display: none; }
.admin-panel.active { display: block; }

.admin-panel__header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.admin-panel__header h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-right: auto;
}
.admin-panel__hint {
  color: var(--admin-text-muted);
  font-size: 0.82rem;
  margin-bottom: 16px;
}

/* BUTTONS */
.admin-btn {
  padding: 8px 16px;
  border-radius: var(--admin-radius);
  border: 1px solid var(--admin-border);
  background: var(--admin-input-bg);
  color: var(--admin-text);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  font-family: inherit;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.admin-btn:hover { background: #2a2a3a; }
.admin-btn--primary {
  background: var(--admin-accent);
  border-color: var(--admin-accent);
  color: #fff;
}
.admin-btn--primary:hover { background: var(--admin-accent-hover); }
.admin-btn--ghost {
  background: transparent;
  border-color: transparent;
  color: var(--admin-text-muted);
}
.admin-btn--ghost:hover { color: var(--admin-text); background: rgba(255,255,255,0.04); }
.admin-btn--outline {
  background: transparent;
  border-color: var(--admin-border);
}
.admin-btn--outline:hover { border-color: var(--admin-text-muted); }
.admin-btn--sm { padding: 5px 10px; font-size: 0.8rem; }
.admin-btn--danger { color: var(--admin-danger); border-color: var(--admin-danger); }
.admin-btn--danger:hover { background: rgba(255,68,68,0.1); }

/* FORM */
.admin-form { max-width: 700px; }
.admin-form__group {
  margin-bottom: 16px;
}
.admin-form__group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--admin-text-muted);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.admin-form__group input,
.admin-form__group textarea {
  width: 100%;
  padding: 10px 12px;
  background: var(--admin-input-bg);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius);
  color: var(--admin-text);
  font-size: 0.9rem;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s;
}
.admin-form__group input:focus,
.admin-form__group textarea:focus {
  border-color: var(--admin-accent);
}
.admin-form__group textarea { resize: vertical; }
.admin-form__actions { margin-top: 24px; }

/* SORTABLE LIST */
.admin-sortable {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 20px;
  min-height: 40px;
}
.admin-sortable__item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--admin-surface);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius);
  cursor: grab;
  transition: background 0.15s, border-color 0.15s;
  user-select: none;
}
.admin-sortable__item:hover {
  background: #1a1a28;
  border-color: #3a3a4a;
}
.admin-sortable__item.dragging {
  opacity: 0.4;
  border-style: dashed;
}
.admin-sortable__item.drag-over {
  border-color: var(--admin-accent);
  background: rgba(193,40,65,0.08);
}
.admin-sortable__item .drag-handle {
  color: var(--admin-text-muted);
  font-size: 1rem;
  cursor: grab;
  flex-shrink: 0;
  opacity: 0.5;
}
.admin-sortable__item .item-preview {
  width: 36px;
  height: 36px;
  border-radius: 6px;
  background: var(--admin-input-bg);
  object-fit: cover;
  flex-shrink: 0;
}
.admin-sortable__item .item-info {
  flex: 1;
  min-width: 0;
}
.admin-sortable__item .item-title {
  font-size: 0.9rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.admin-sortable__item .item-sub {
  font-size: 0.78rem;
  color: var(--admin-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.admin-sortable__item .item-remove {
  background: none;
  border: none;
  color: var(--admin-text-muted);
  font-size: 1.1rem;
  cursor: pointer;
  padding: 4px 6px;
  border-radius: 4px;
  transition: all 0.15s;
  flex-shrink: 0;
}
.admin-sortable__item .item-remove:hover {
  color: var(--admin-danger);
  background: rgba(255,68,68,0.1);
}

/* SUBSECTION */
.admin-subsection {
  margin-bottom: 28px;
}
.admin-subsection h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--admin-text-muted);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* MODAL */
.admin-edit-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
}
.admin-edit-modal.active { display: flex; }
.admin-edit-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.7);
}
.admin-edit-modal__content {
  position: relative;
  background: var(--admin-surface);
  border: 1px solid var(--admin-border);
  border-radius: 12px;
  width: 480px;
  max-width: 90vw;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--admin-shadow);
}
.admin-edit-modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px 0;
}
.admin-edit-modal__header h3 {
  font-size: 1.15rem;
  font-weight: 700;
}
.admin-edit-modal__close {
  background: none;
  border: none;
  color: var(--admin-text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 4px;
  line-height: 1;
}
.admin-edit-modal__close:hover { color: var(--admin-text); }
.admin-edit-modal__body {
  padding: 20px 24px;
  overflow-y: auto;
  flex: 1;
}
.admin-edit-modal__body .admin-form__group {
  margin-bottom: 14px;
}
.admin-edit-modal__footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 16px 24px;
  border-top: 1px solid var(--admin-border);
}

/* COLLAGE */
.collage-canvas {
  position: relative;
  width: 100%;
  min-height: 400px;
  background: var(--admin-input-bg);
  border: 2px dashed var(--admin-border);
  border-radius: var(--admin-radius);
  overflow: hidden;
}
.collage-canvas .collage-item {
  position: absolute;
  cursor: move;
  border: 2px solid transparent;
  border-radius: 6px;
  overflow: hidden;
  transition: border-color 0.15s;
  min-width: 60px;
  min-height: 60px;
}
.collage-canvas .collage-item:hover {
  border-color: var(--admin-accent);
}
.collage-canvas .collage-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
}
.collage-canvas .collage-item .resize-handle {
  position: absolute;
  bottom: 0; right: 0;
  width: 14px; height: 14px;
  background: var(--admin-accent);
  border-radius: 0 0 6px 0;
  cursor: nwse-resize;
  opacity: 0;
  transition: opacity 0.15s;
}
.collage-canvas .collage-item:hover .resize-handle {
  opacity: 1;
}
.collage-canvas .collage-item .collage-remove {
  position: absolute;
  top: 4px; right: 4px;
  width: 22px; height: 22px;
  background: rgba(0,0,0,0.7);
  border: none;
  border-radius: 50%;
  color: #fff;
  font-size: 0.85rem;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  line-height: 1;
}
.collage-canvas .collage-item:hover .collage-remove {
  display: flex;
}

/* SCROLLBAR */
.admin-main::-webkit-scrollbar,
.admin-edit-modal__body::-webkit-scrollbar {
  width: 6px;
}
.admin-main::-webkit-scrollbar-track,
.admin-edit-modal__body::-webkit-scrollbar-track {
  background: transparent;
}
.admin-main::-webkit-scrollbar-thumb,
.admin-edit-modal__body::-webkit-scrollbar-thumb {
  background: var(--admin-border);
  border-radius: 3px;
}
.admin-main::-webkit-scrollbar-thumb:hover {
  background: #3a3a4a;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .admin-layout { flex-direction: column; }
  .admin-sidebar { width: 100%; min-width: auto; flex-direction: row; overflow-x: auto; border-right: none; border-bottom: 1px solid var(--admin-border); padding: 8px; }
  .admin-tab { border-left: none; border-bottom: 2px solid transparent; padding: 8px 14px; white-space: nowrap; }
  .admin-tab.active { border-left-color: transparent; border-bottom-color: var(--admin-accent); }
  .admin-main { padding: 16px; }
  .admin-nav { flex-wrap: wrap; gap: 8px; }
  .admin-nav__actions { flex-wrap: wrap; }
}