/* ==========================================================================
   edvlabs Arena — Admin Panel Stylesheet (admin.css)
   ========================================================================== */

:root {
  --admin-bg: #111214;
  --admin-surface: #181a1e;
  --admin-surface-2: #202329;
  --admin-surface-3: #2a2e36;
  --admin-border: rgba(255, 255, 255, 0.1);
  --admin-border-strong: rgba(255, 255, 255, 0.2);
  --admin-text: #f6f6f6;
  --admin-text-muted: #9ca3af;
  --admin-accent: #00b181;
  --admin-accent-blue: #213ded;
  --admin-accent-cyan: #00acd7;
  --admin-accent-warm: #e6c82a;
  --admin-danger: #ff3700;
  --admin-radius-sm: 8px;
  --admin-radius-md: 12px;
  --admin-radius-lg: 16px;
  --font-sans: 'Hanken Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html,
body {
  height: 100%;
  background: var(--admin-bg);
  color: var(--admin-text);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

/* --- Layout --- */
.admin-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  height: 100vh;
  overflow: hidden;
}

/* --- Sidebar --- */
.admin-sidebar {
  background: var(--admin-surface);
  border-right: 1px solid var(--admin-border);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.25rem 0.85rem;
  overflow-y: auto;
}

.admin-sidebar__brand {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 0.5rem 1.25rem;
  border-bottom: 1px solid var(--admin-border);
  margin-bottom: 1rem;
}

.admin-brand-logo {
  height: 36px;
  width: auto;
  display: block;
}

.admin-badge {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  background: linear-gradient(90deg, #213ded, #00acd7, #00b181);
  color: #fff;
}

.admin-nav {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  flex: 1;
}

.admin-nav__item {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  width: 100%;
  padding: 0.7rem 0.85rem;
  border: 1px solid transparent;
  border-radius: var(--admin-radius-sm);
  background: transparent;
  color: var(--admin-text-muted);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  transition: all 0.18s ease;
}

.admin-nav__item:hover {
  background: var(--admin-surface-2);
  color: var(--admin-text);
}

.admin-nav__item.is-active {
  background: var(--admin-surface-3);
  color: #fff;
  border-color: var(--admin-border-strong);
  font-weight: 600;
}

.admin-nav__count {
  margin-left: auto;
  font-size: 11px;
  font-weight: 700;
  padding: 0.12rem 0.45rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.09);
  color: var(--admin-text);
}

.admin-sidebar__footer {
  padding-top: 1rem;
  border-top: 1px solid var(--admin-border);
}

/* --- Main Area & Topbar --- */
.admin-main {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

.admin-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1.5rem;
  background: var(--admin-surface);
  border-bottom: 1px solid var(--admin-border);
  flex-shrink: 0;
}

.admin-topbar__left {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.admin-topbar__title {
  font-size: 1.15rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.admin-sync-pill {
  font-size: 12px;
  padding: 0.22rem 0.65rem;
  border-radius: 999px;
  background: rgba(0, 177, 129, 0.14);
  color: #34d399;
  border: 1px solid rgba(0, 177, 129, 0.3);
}

.admin-sync-pill.is-dirty {
  background: rgba(230, 200, 42, 0.15);
  color: #facc15;
  border-color: rgba(230, 200, 42, 0.35);
}

.admin-topbar__actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.admin-history-group {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding-right: 0.35rem;
  border-right: 1px solid var(--admin-border);
}

/* --- Buttons & Inputs --- */
.admin-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.55rem 1rem;
  border-radius: var(--admin-radius-sm);
  border: 1px solid transparent;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--admin-text);
  background: var(--admin-surface-3);
  text-decoration: none;
  cursor: pointer;
  transition: all 0.18s ease;
}

.admin-btn:hover:not(:disabled) {
  background: #353a44;
}

.admin-btn:disabled {
  opacity: 0.38;
  cursor: not-allowed;
}

.admin-btn--primary {
  background: linear-gradient(135deg, #00b181, #00acd7);
  color: #0b0d0e;
  font-weight: 700;
}

.admin-btn--primary:hover:not(:disabled) {
  filter: brightness(1.08);
}

.admin-btn--outline {
  background: transparent;
  border-color: var(--admin-border-strong);
}

.admin-btn--outline:hover:not(:disabled) {
  background: var(--admin-surface-2);
}

.admin-btn--ghost {
  background: var(--admin-surface-2);
  border-color: var(--admin-border);
}

.admin-btn--ghost[aria-pressed="true"] {
  border-color: var(--admin-accent-cyan);
  color: #fff;
}

.admin-btn--danger-ghost {
  background: rgba(255, 55, 0, 0.1);
  border-color: rgba(255, 55, 0, 0.3);
  color: #ff6b42;
}

.admin-btn--danger-ghost:hover:not(:disabled) {
  background: rgba(255, 55, 0, 0.2);
}

.admin-btn--sm {
  padding: 0.38rem 0.7rem;
  font-size: 0.75rem;
}

.admin-btn--icon {
  padding: 0.38rem 0.6rem;
  font-size: 0.9rem;
}

.admin-btn--full {
  width: 100%;
}

.admin-input,
.admin-textarea,
.admin-select {
  width: 100%;
  padding: 0.6rem 0.8rem;
  border-radius: var(--admin-radius-sm);
  border: 1px solid var(--admin-border-strong);
  background: var(--admin-bg);
  color: var(--admin-text);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  transition: border-color 0.18s ease;
}

.admin-input:focus,
.admin-textarea:focus,
.admin-select:focus {
  outline: none;
  border-color: var(--admin-accent-cyan);
}

.admin-textarea {
  min-height: 86px;
  resize: vertical;
}

/* --- Workspace Split View --- */
.admin-workspace {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  flex: 1;
  overflow: hidden;
}

.admin-workspace.preview-hidden {
  grid-template-columns: 1fr;
}

.admin-workspace.preview-hidden .admin-preview-pane {
  display: none;
}

.admin-editor-pane {
  overflow-y: auto;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* --- Preview Pane --- */
.admin-preview-pane {
  background: #0b0c0e;
  border-left: 1px solid var(--admin-border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.admin-preview-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.6rem 1rem;
  background: var(--admin-surface);
  border-bottom: 1px solid var(--admin-border);
}

.admin-preview-toolbar__label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--admin-text-muted);
}

.admin-viewport-switch {
  display: inline-flex;
  background: var(--admin-bg);
  padding: 0.2rem;
  border-radius: var(--admin-radius-sm);
  border: 1px solid var(--admin-border);
}

.viewport-btn {
  border: none;
  background: transparent;
  color: var(--admin-text-muted);
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.3rem 0.65rem;
  border-radius: 6px;
  cursor: pointer;
}

.viewport-btn.is-active {
  background: var(--admin-surface-3);
  color: #fff;
}

.admin-preview-stage {
  flex: 1;
  display: flex;
  align-items: stretch;
  justify-content: center;
  padding: 0;
  overflow: auto;
  background: radial-gradient(circle at center, #1c1f26 0%, #0b0c0e 100%);
}

.admin-preview-stage iframe {
  width: 100%;
  height: 100%;
  border: none;
  background: #1e1e1e;
  transition: width 0.28s ease, height 0.28s ease, border-radius 0.28s ease;
}

.admin-preview-stage[data-mode="tablet"] {
  padding: 1rem;
}

.admin-preview-stage[data-mode="tablet"] iframe {
  width: 768px;
  max-width: 100%;
  height: 100%;
  border-radius: 14px;
  border: 2px solid var(--admin-border-strong);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
}

.admin-preview-stage[data-mode="mobile"] {
  padding: 1rem;
}

.admin-preview-stage[data-mode="mobile"] iframe {
  width: 375px;
  max-width: 100%;
  height: 812px;
  max-height: 100%;
  border-radius: 24px;
  border: 3px solid var(--admin-border-strong);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.65);
}

/* --- Editor Cards & Sections --- */
.editor-banner {
  background: linear-gradient(135deg, rgba(33, 61, 237, 0.16), rgba(0, 177, 129, 0.12));
  border: 1px solid rgba(0, 172, 215, 0.28);
  border-radius: var(--admin-radius-md);
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.editor-banner p {
  color: var(--admin-text-muted);
  font-size: 0.85rem;
  margin-top: 0.2rem;
}

.editor-card {
  background: var(--admin-surface);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius-md);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.editor-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  border-bottom: 1px solid var(--admin-border);
  padding-bottom: 0.75rem;
}

.editor-card__title {
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.editor-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 1rem;
}

.item-card {
  background: var(--admin-surface-2);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s ease;
}

.item-card:hover {
  border-color: var(--admin-border-strong);
}

.item-card__media {
  position: relative;
  height: 170px;
  background: #101215;
  overflow: hidden;
}

.item-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.item-card__media--contain img {
  object-fit: contain;
  padding: 1.25rem;
}

.item-card__badge {
  position: absolute;
  top: 0.6rem;
  left: 0.6rem;
  background: rgba(17, 18, 20, 0.86);
  backdrop-filter: blur(8px);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 0.22rem 0.55rem;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.item-card__media-actions {
  position: absolute;
  bottom: 0.6rem;
  right: 0.6rem;
  display: flex;
  gap: 0.4rem;
}

.item-card__body {
  padding: 0.95rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  flex: 1;
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.field-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--admin-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.item-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.5rem;
  border-top: 1px solid var(--admin-border);
  margin-top: auto;
}

.image-inline-picker {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--admin-surface-2);
  padding: 0.75rem;
  border-radius: var(--admin-radius-sm);
  border: 1px solid var(--admin-border);
}

.image-inline-picker__thumb {
  width: 96px;
  height: 68px;
  border-radius: 6px;
  object-fit: cover;
  background: #0d0e11;
  flex-shrink: 0;
}

.image-inline-picker__controls {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

/* --- Media Modal --- */
.admin-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.admin-modal-backdrop[hidden] {
  display: none !important;
}

.admin-modal {
  background: var(--admin-surface);
  border: 1px solid var(--admin-border-strong);
  border-radius: var(--admin-radius-lg);
  width: 100%;
  max-width: 960px;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 25px 70px rgba(0, 0, 0, 0.65);
}

.admin-modal__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 1.15rem 1.5rem;
  border-bottom: 1px solid var(--admin-border);
}

.admin-modal__subtitle {
  font-size: 0.825rem;
  color: var(--admin-text-muted);
  margin-top: 0.2rem;
}

.admin-modal__close {
  background: none;
  border: none;
  color: var(--admin-text-muted);
  font-size: 1.75rem;
  line-height: 1;
  cursor: pointer;
}

.admin-modal__controls {
  padding: 0.9rem 1.5rem;
  border-bottom: 1px solid var(--admin-border);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.media-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.media-filter-btn {
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--admin-border);
  background: var(--admin-surface-2);
  color: var(--admin-text-muted);
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
}

.media-filter-btn.is-active {
  background: var(--admin-text);
  color: var(--admin-bg);
  border-color: var(--admin-text);
}

.media-search-upload {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.media-upload-label {
  white-space: nowrap;
  flex-shrink: 0;
}

.media-grid {
  padding: 1.25rem 1.5rem;
  overflow-y: auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(155px, 1fr));
  gap: 0.85rem;
  flex: 1;
}

.media-tile {
  background: var(--admin-surface-2);
  border: 2px solid transparent;
  border-radius: var(--admin-radius-sm);
  overflow: hidden;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  text-align: left;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.media-tile:hover,
.media-tile:focus-visible {
  transform: translateY(-2px);
  border-color: var(--admin-accent-cyan);
  outline: none;
}

.media-tile__thumb {
  width: 100%;
  height: 110px;
  object-fit: cover;
  background: #0e1013;
}

.media-tile__meta {
  padding: 0.5rem 0.6rem;
}

.media-tile__label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--admin-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.media-tile__cat {
  font-size: 0.68rem;
  color: var(--admin-text-muted);
}

.admin-modal__footer {
  padding: 0.9rem 1.5rem;
  border-top: 1px solid var(--admin-border);
  background: var(--admin-surface-2);
}

.media-custom-url-row {
  display: flex;
  gap: 0.6rem;
}

/* --- Toast --- */
.admin-toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10000;
  background: #10b981;
  color: #06281e;
  font-weight: 700;
  padding: 0.65rem 1.25rem;
  border-radius: 999px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.45);
}

/* --- Responsive Admin Layout --- */
@media (max-width: 1180px) {
  .admin-workspace {
    grid-template-columns: 1fr;
  }

  .admin-preview-pane {
    display: none;
  }

  .admin-workspace.force-preview-mobile .admin-preview-pane {
    display: flex;
    height: 55vh;
    border-left: none;
    border-top: 1px solid var(--admin-border);
  }
}

@media (max-width: 767px) {
  .admin-layout {
    grid-template-columns: 1fr;
    height: auto;
    min-height: 100vh;
    overflow: visible;
  }

  .admin-main {
    height: auto;
    overflow: visible;
  }

  .admin-sidebar {
    border-right: none;
    border-bottom: 1px solid var(--admin-border);
  }

  .admin-nav {
    flex-direction: row;
    overflow-x: auto;
    padding-bottom: 0.35rem;
  }

  .admin-nav__item {
    width: auto;
    white-space: nowrap;
  }
}