/* ============================================
   Editor CSS — 在线文章编辑器
   ============================================ */

:root {
  --ed-bg: #f0f2f5;
  --ed-surface: #fff;
  --ed-toolbar-bg: #1e293b;
  --ed-toolbar-text: #e2e8f0;
  --ed-primary: #2563eb;
  --ed-primary-hover: #1d4ed8;
  --ed-text: #1e293b;
  --ed-text-secondary: #64748b;
  --ed-border: #e2e8f0;
  --ed-radius: 6px;
  --ed-shadow: 0 2px 8px rgba(0,0,0,0.06);
  --ed-transition: 0.15s ease;
}

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

.editor-body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'PingFang SC',
               'HarmonyOS Sans', 'Microsoft YaHei', sans-serif;
  background: var(--ed-bg);
  color: var(--ed-text);
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
}

/* ---- Toolbar ---- */
.ed-toolbar {
  height: 48px; min-height: 48px;
  background: var(--ed-toolbar-bg);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 12px; gap: 8px;
  z-index: 100; box-shadow: 0 1px 4px rgba(0,0,0,0.15);
  flex-shrink: 0;
}
.ed-toolbar-left { display: flex; align-items: center; gap: 4px; flex-wrap: nowrap; overflow: hidden; }
.ed-toolbar-right { display: flex; align-items: center; gap: 6px; }
.ed-toolbar-sep { width: 1px; height: 20px; background: #475569; margin: 0 4px; flex-shrink: 0; }

/* Buttons */
.ed-btn {
  padding: 5px 12px; border: 1px solid transparent; border-radius: var(--ed-radius);
  font-size: 12px; cursor: pointer; font-family: inherit; font-weight: 500;
  white-space: nowrap; transition: all var(--ed-transition);
  line-height: 1.4;
}
.ed-btn-ghost {
  background: transparent; color: var(--ed-toolbar-text); border: 1px solid #475569;
  font-size: 12px;
}
.ed-btn-ghost:hover { background: rgba(255,255,255,0.1); border-color: #94a3b8; }
.ed-btn-primary { background: var(--ed-primary); color: #fff; border-color: var(--ed-primary); }
.ed-btn-primary:hover { background: var(--ed-primary-hover); }
.ed-btn-outline { background: transparent; color: #93c5fd; border: 1px solid #475569; }
.ed-btn-outline:hover { background: rgba(59,130,246,0.15); border-color: #60a5fa; }
.ed-btn-tog { min-width: 98px; }

/* Select */
.ed-select {
  padding: 4px 8px; border: 1px solid #475569; border-radius: var(--ed-radius);
  background: #334155; color: var(--ed-toolbar-text);
  font-size: 12px; cursor: pointer; font-family: inherit;
  max-width: 220px; outline: none;
}
.ed-select:focus { border-color: var(--ed-primary); }

/* Save status */
.ed-save-status {
  font-size: 11px; color: #94a3b8; padding: 2px 8px;
  border-radius: 10px; white-space: nowrap;
  transition: all 0.3s;
}
.ed-status-dirty { color: #fbbf24; }
.ed-status-ok { color: #4ade80; }

/* ---- Main Layout ---- */
.ed-main {
  flex: 1; display: flex; overflow: hidden; position: relative;
}

/* ---- Panes ---- */
.ed-pane {
  display: flex; flex-direction: column; overflow: hidden;
  min-width: 0;
}
.ed-pane-code { flex: 1; }
.ed-pane-preview { flex: 1; border-left: 1px solid var(--ed-border); }

.ed-pane-header {
  height: 32px; min-height: 32px;
  background: var(--ed-surface); border-bottom: 1px solid var(--ed-border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 12px; flex-shrink: 0;
}
.ed-pane-title { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: var(--ed-text-secondary); }
.ed-pane-info { font-size: 11px; color: #94a3b8; }

/* ---- Editor ---- */
.ed-editor-wrap {
  flex: 1; display: flex; overflow: hidden; position: relative;
}
.ed-line-numbers {
  width: 48px; min-width: 48px;
  background: #f8fafc; border-right: 1px solid var(--ed-border);
  padding: 10px 6px 10px 10px; font-family: 'SF Mono','Consolas','Fira Code',monospace;
  font-size: 13px; line-height: 1.65; color: #94a3b8; text-align: right;
  overflow: hidden; user-select: none;
  white-space: pre;
}
.ed-textarea {
  flex: 1; border: none; resize: none; outline: none;
  padding: 10px 14px; font-family: 'SF Mono','Consolas','Fira Code',monospace;
  font-size: 13px; line-height: 1.65; color: var(--ed-text);
  background: #fafbfd; tab-size: 2;
  white-space: pre; overflow-wrap: normal; overflow-x: auto;
}
.ed-textarea:focus { background: #fff; }
.ed-textarea::placeholder { color: #cbd5e1; }

/* ---- Preview ---- */
.ed-preview-iframe {
  flex: 1; border: none; background: #fff; width: 100%;
}

/* ---- Resizer ---- */
.ed-resizer {
  width: 5px; cursor: col-resize; background: transparent;
  position: relative; flex-shrink: 0; z-index: 10;
}
.ed-resizer:hover, .ed-resizer:active { background: var(--ed-primary); opacity: 0.3; }

/* ---- Footer Stats ---- */
.ed-footer {
  height: 32px; min-height: 32px;
  background: var(--ed-surface); border-top: 1px solid var(--ed-border);
  display: flex; align-items: center; gap: 16px;
  padding: 0 16px; flex-shrink: 0; z-index: 10;
}
.ed-footer-item { font-size: 11px; color: var(--ed-text-secondary); }
.ed-footer-item strong { color: var(--ed-primary); font-weight: 700; }
.ed-footer-right { margin-left: auto; color: #94a3b8; font-family: 'SF Mono',monospace; font-size: 11px; }

/* ---- Modal ---- */
.ed-modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.5);
  display: flex; align-items: center; justify-content: center;
  z-index: 9999; backdrop-filter: blur(2px);
  animation: edFadeIn 0.2s ease;
}
@keyframes edFadeIn { from { opacity: 0; } to { opacity: 1; } }
.ed-modal {
  background: #fff; border-radius: 16px; padding: 36px 40px;
  max-width: 420px; width: 90%; text-align: center;
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
  animation: edSlideUp 0.3s ease;
}
@keyframes edSlideUp { from { opacity:0; transform:translateY(20px); } to { opacity:1; transform:translateY(0); } }
.ed-modal-icon { font-size: 44px; margin-bottom: 12px; }
.ed-modal-title { font-size: 18px; font-weight: 700; color: var(--ed-text); margin-bottom: 8px; }
.ed-modal-desc { font-size: 14px; color: var(--ed-text-secondary); margin-bottom: 24px; }
.ed-modal-actions { display: flex; gap: 10px; justify-content: center; }
.ed-modal-actions .ed-btn { padding: 8px 20px; font-size: 13px; }
.ed-modal-actions .ed-btn-ghost { color: var(--ed-text); border-color: var(--ed-border); min-width: 100px; }

/* ---- Toast ---- */
.ed-toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(80px);
  background: #1e293b; color: #fff; padding: 10px 24px;
  border-radius: 20px; font-size: 13px; z-index: 9999;
  opacity: 0; transition: all 0.3s ease;
  pointer-events: none; box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}
.ed-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---- Utility ---- */
.ed-hidden { display: none !important; }
.ed-full { flex: 2 !important; }

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .ed-toolbar { height: auto; min-height: 48px; flex-wrap: wrap; padding: 6px 10px; gap: 4px; }
  .ed-toolbar-left { flex-wrap: wrap; }
  .ed-toolbar-right { flex-wrap: wrap; }
  .ed-toolbar-sep { display: none; }
  .ed-select { max-width: 160px; }

  .ed-main { flex-direction: column; }
  .ed-pane-code { flex: none; height: 50%; min-height: 200px; }
  .ed-pane-preview { flex: none; height: 50%; border-left: none; border-top: 1px solid var(--ed-border); }
  .ed-resizer { display: none; }

  .ed-footer { gap: 8px; padding: 0 10px; overflow-x: auto; }
  .ed-footer-item { font-size: 10px; }
  .ed-footer-right { display: none; }
}