/* ========================================
   MandarinVoice CMS — 精致阅读 & 管理体验
   ======================================== */

/* ---------- Variables ---------- */
:root {
  /* Light — warm & refined */
  --bg: #fcfaf7;
  --bg-subtle: #f5f0eb;
  --bg-card: #ffffff;
  --bg-elevated: #ffffff;
  --text: #1c1917;
  --text-secondary: #78716c;
  --text-tertiary: #a8a29e;
  --border: #e7e2db;
  --border-light: #f0ebe5;
  --accent: #b45309;
  --accent-hover: #92400e;
  --accent-subtle: #fffbeb;
  --accent-soft: #fef3c7;
  --danger: #dc2626;
  --danger-hover: #b91c1c;
  --success: #059669;
  --success-subtle: #ecfdf5;
  --warning: #d97706;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.05);
  --shadow: 0 1px 3px rgba(0,0,0,.07), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 8px -1px rgba(0,0,0,.08), 0 2px 5px -1px rgba(0,0,0,.05);
  --shadow-lg: 0 12px 28px -4px rgba(0,0,0,.09), 0 4px 10px -2px rgba(0,0,0,.05);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-xs: 6px;
  --max-w: 720px;
  --max-w-wide: 1100px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "SF Pro Display", "Noto Sans SC", "PingFang SC", sans-serif;
  --font-mono: "SF Mono", "Fira Code", "JetBrains Mono", "Cascadia Code", monospace;
  --transition: .2s cubic-bezier(.4,0,.2,1);
}
[data-theme="dark"] {
  --bg: #100c0a;
  --bg-subtle: #1c1713;
  --bg-card: #221c17;
  --bg-elevated: #2a231d;
  --text: #e7e0d8;
  --text-secondary: #a8a09a;
  --text-tertiary: #797069;
  --border: #2e271f;
  --border-light: #251f19;
  --accent: #f59e0b;
  --accent-hover: #fbbf24;
  --accent-subtle: #2a231d;
  --accent-soft: #3d2e13;
  --danger: #f87171;
  --danger-hover: #ef4444;
  --success: #34d399;
  --success-subtle: #064e3b;
  --warning: #fbbf24;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.25);
  --shadow: 0 1px 4px rgba(0,0,0,.35);
  --shadow-md: 0 4px 8px rgba(0,0,0,.45);
  --shadow-lg: 0 12px 28px rgba(0,0,0,.55);
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
body{
  font-family:var(--font);background:var(--bg);color:var(--text);
  line-height:1.7;min-height:100vh;transition:background var(--transition),color var(--transition);
}
a{color:var(--accent);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--accent-hover)}
img{max-width:100%;height:auto}

/* ---------- Utilities ---------- */
.container{max-width:var(--max-w);margin:0 auto;padding:0 24px}
.container-wide{max-width:var(--max-w-wide);margin:0 auto;padding:0 24px}
@media(max-width:600px){.container,.container-wide{padding:0 16px}}

/* ---------- Header ---------- */
.header{
  border-bottom:1px solid var(--border-light);
  background:rgba(252,250,247,.7);
  backdrop-filter:blur(18px) saturate(160%);
  -webkit-backdrop-filter:blur(18px) saturate(160%);
  position:sticky;top:0;z-index:100;
}
[data-theme="dark"] .header{background:rgba(16,12,10,.78)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:60px}
.logo{
  font-size:1.25rem;font-weight:800;color:var(--text);letter-spacing:-.03em;
  display:flex;align-items:center;gap:8px;
}
.logo:hover{color:var(--accent)}
.nav{display:flex;align-items:center;gap:6px}
.nav a,.nav button{
  color:var(--text-secondary);font-size:.88rem;font-weight:500;
  padding:6px 14px;border-radius:var(--radius-xs);
  transition:all var(--transition);
}
.nav a:hover{color:var(--text);background:var(--bg-subtle);text-decoration:none}
.theme-btn{
  background:none;border:1px solid var(--border);cursor:pointer;
  font-size:1rem;padding:5px 8px;border-radius:var(--radius-xs);
  color:var(--text-secondary);transition:all var(--transition);line-height:1;
}
.theme-btn:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-subtle)}

/* ---------- Hero ---------- */
.hero{padding:72px 24px 48px;text-align:center}
.hero h1{
  font-size:2.75rem;font-weight:800;letter-spacing:-.03em;
  line-height:1.15;margin-bottom:14px;
  background:linear-gradient(135deg,var(--text) 20%,var(--accent) 100%);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
}
.hero p{color:var(--text-secondary);font-size:1.1rem;max-width:480px;margin:0 auto}
@media(max-width:600px){.hero{padding:48px 16px 36px}.hero h1{font-size:2rem}}

/* ---------- Search & Filter ---------- */
.search-section{padding-bottom:40px}
.search-bar{
  display:flex;gap:10px;max-width:560px;margin:0 auto;
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:100px;padding:4px;
  box-shadow:var(--shadow);
  transition:box-shadow var(--transition),border-color var(--transition);
}
.search-bar:focus-within{box-shadow:var(--shadow-md);border-color:var(--accent)}
.search-bar input{
  flex:1;border:none;background:transparent;padding:8px 16px;
  font-size:.92rem;color:var(--text);outline:none;min-width:0;
}
.search-bar input::placeholder{color:var(--text-tertiary)}
.search-bar select{
  border:1px solid var(--border);border-radius:100px;padding:6px 14px;
  font-size:.85rem;background:var(--bg-subtle);color:var(--text-secondary);
  cursor:pointer;outline:none;min-width:100px;
}
.search-bar button{
  background:var(--accent);color:#fff;border:none;
  padding:8px 22px;border-radius:100px;
  font-size:.88rem;font-weight:600;cursor:pointer;
  transition:all var(--transition);white-space:nowrap;
}
.search-bar button:hover{background:var(--accent-hover);box-shadow:0 2px 8px rgba(180,83,9,.25)}
@media(max-width:600px){.search-bar{flex-wrap:wrap;border-radius:var(--radius);padding:8px}.search-bar input{width:100%}}

/* ---------- Post Grid ---------- */
.posts-grid{display:grid;gap:20px;padding-bottom:24px}

/* ---------- Post Card ---------- */
.post-card{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);padding:28px 32px;
  cursor:pointer;transition:all var(--transition);
  position:relative;
}
.post-card:hover{
  border-color:transparent;box-shadow:var(--shadow-lg);
  transform:translateY(-3px);
}
.post-card:active{transform:translateY(-1px)}
.post-card .cat{
  display:inline-flex;font-size:.75rem;font-weight:600;
  color:var(--accent);background:var(--accent-subtle);
  padding:3px 10px;border-radius:100px;margin-bottom:12px;
  letter-spacing:.02em;
}
.post-card h2{
  font-size:1.3rem;font-weight:700;line-height:1.4;margin-bottom:8px;
}
.post-card h2 a{color:var(--text);transition:color var(--transition)}
.post-card h2 a:hover{color:var(--accent);text-decoration:none}
.post-card .excerpt{
  color:var(--text-secondary);font-size:.92rem;line-height:1.65;
  margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card .meta{
  display:flex;align-items:center;gap:12px;
  font-size:.82rem;color:var(--text-tertiary);
}
.post-card .meta .dot{width:3px;height:3px;border-radius:50%;background:var(--text-tertiary);opacity:.4}
.post-card .cover{
  width:100%;height:220px;object-fit:cover;
  border-radius:var(--radius-sm);margin-bottom:18px;
  background:var(--bg-subtle);
}
@media(max-width:600px){.post-card{padding:20px}.post-card h2{font-size:1.15rem}}

/* ---------- Pagination ---------- */
.pagination{
  display:flex;justify-content:center;align-items:center;
  gap:12px;padding:32px 0 56px;
}
.pagination button{
  padding:8px 20px;border:1px solid var(--border);border-radius:var(--radius-xs);
  background:var(--bg);color:var(--text-secondary);font-size:.88rem;
  cursor:pointer;transition:all var(--transition);
}
.pagination button:not(:disabled):hover{background:var(--accent-subtle);border-color:var(--accent);color:var(--accent)}
.pagination button:disabled{opacity:.35;cursor:not-allowed}
.pagination .info{font-size:.85rem;color:var(--text-tertiary);min-width:100px;text-align:center}

/* ---------- Article Detail ---------- */
.detail{padding:48px 0 80px}
.detail .back{
  display:inline-flex;align-items:center;gap:6px;
  font-size:.88rem;color:var(--text-tertiary);margin-bottom:28px;
  transition:color var(--transition);
}
.detail .back:hover{color:var(--accent);text-decoration:none}
.detail .cat{
  display:inline-flex;font-size:.78rem;font-weight:600;
  color:var(--accent);background:var(--accent-subtle);
  padding:4px 12px;border-radius:100px;margin-bottom:14px;
}
.detail h1{
  font-size:2.2rem;font-weight:800;line-height:1.25;
  letter-spacing:-.02em;margin-bottom:14px;
}
.detail .meta{
  display:flex;align-items:center;gap:14px;
  font-size:.88rem;color:var(--text-tertiary);margin-bottom:36px;flex-wrap:wrap;
}
.detail .meta .dot{width:3px;height:3px;border-radius:50%;background:var(--text-tertiary);opacity:.4}
.detail .cover-hero{
  width:100%;max-height:420px;object-fit:cover;
  border-radius:var(--radius);margin-bottom:36px;
}
@media(max-width:600px){.detail{padding:24 0 48px}.detail h1{font-size:1.6rem}}

/* ---------- Article Content ---------- */
.article{
  font-size:1.05rem;line-height:1.85;color:var(--text);max-width:var(--max-w);
}
.article h2{font-size:1.55rem;font-weight:700;margin:2em 0 .8em;letter-spacing:-.01em}
.article h3{font-size:1.2rem;font-weight:600;margin:1.6em 0 .6em}
.article p{margin-bottom:1.2em}
.article ul,.article ol{margin-bottom:1.2em;padding-left:1.6em}
.article li{margin-bottom:.35em}
.article a{text-decoration:underline;text-underline-offset:2px}
.article a:hover{text-decoration-thickness:2px}
.article blockquote{
  border-left:3px solid var(--accent);
  margin:1.5em 0;padding:4px 20px 4px 24px;
  color:var(--text-secondary);font-style:italic;
}
.article pre{
  background:#131a2b;color:#e2e8f0;
  padding:20px 24px;border-radius:var(--radius-sm);
  overflow-x:auto;margin:1.5em 0;
  font-size:.88rem;line-height:1.6;
  border:1px solid rgba(255,255,255,.06);
}
.article pre code{background:none!important;padding:0;font-family:var(--font-mono)}
.article code{
  background:var(--accent-subtle);padding:2px 7px;border-radius:4px;
  font-size:.88em;font-family:var(--font-mono);
  border:1px solid var(--border-light);
}
.article img{border-radius:var(--radius-sm);margin:1.5em 0}
.article hr{border:none;border-top:1px solid var(--border);margin:2.5em 0}
.article table{width:100%;border-collapse:collapse;margin:1.5em 0}
.article th,.article td{border:1px solid var(--border);padding:10px 14px;text-align:left;font-size:.92rem}
.article th{background:var(--bg-subtle);font-weight:600}

/* ---------- Login Page ---------- */
.login-page{
  display:flex;align-items:center;justify-content:center;
  min-height:100vh;background:var(--bg-subtle);
  padding:24px;
}
.login-card{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);padding:44px 40px 36px;
  width:100%;max-width:400px;box-shadow:var(--shadow-lg);
}
.login-card h1{text-align:center;font-size:1.35rem;font-weight:700;margin-bottom:6px}
.login-card .sub{text-align:center;color:var(--text-tertiary);font-size:.88rem;margin-bottom:28px}
.form-group{margin-bottom:18px}
.form-group label{display:block;font-size:.82rem;font-weight:600;margin-bottom:6px;color:var(--text-secondary)}
.form-group input{
  width:100%;padding:10px 14px;border:1px solid var(--border);border-radius:var(--radius-xs);
  font-size:.92rem;background:var(--bg);color:var(--text);outline:none;
  transition:border-color var(--transition);
}
.form-group input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(180,83,9,.12)}
.login-error{color:var(--danger);font-size:.85rem;text-align:center;margin-bottom:12px;display:none}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:9px 22px;border-radius:var(--radius-xs);
  font-size:.88rem;font-weight:600;border:none;cursor:pointer;
  transition:all var(--transition);white-space:nowrap;
  line-height:1.4;
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-hover);box-shadow:0 2px 8px rgba(180,83,9,.25)}
.btn-primary:active{transform:scale(.97)}
.btn-secondary{background:var(--bg-subtle);color:var(--text-secondary);border:1px solid var(--border)}
.btn-secondary:hover{background:var(--border);color:var(--text)}
.btn-danger{background:var(--danger);color:#fff}
.btn-danger:hover{background:var(--danger-hover)}
.btn-ghost{background:transparent;color:var(--text-secondary);border:none;padding:6px 12px}
.btn-ghost:hover{background:var(--bg-subtle);color:var(--text)}
.btn-sm{padding:6px 14px;font-size:.82rem}

/* ---------- Admin Layout ---------- */
.admin-layout{display:flex;height:100vh;overflow:hidden}

/* Sidebar */
.admin-sidebar{
  width:300px;border-right:1px solid var(--border);
  display:flex;flex-direction:column;background:var(--bg-card);
  flex-shrink:0;
}
.admin-sidebar-head{
  padding:16px 18px;border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;
}
.admin-sidebar-head h2{font-size:.92rem;font-weight:700}
.admin-post-list{flex:1;overflow-y:auto;padding:8px}
.admin-post-item{
  padding:12px 16px;border-radius:var(--radius-xs);cursor:pointer;
  transition:all .12s;margin-bottom:2px;
}
.admin-post-item:hover{background:var(--bg-subtle)}
.admin-post-item.active{background:var(--accent-subtle);border-left:3px solid var(--accent);box-shadow:inset 0 0 0 1px var(--accent-soft)}
.admin-post-item .title{font-weight:600;font-size:.88rem;margin-bottom:3px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.admin-post-item .sub{display:flex;align-items:center;gap:8px;font-size:.72rem;color:var(--text-tertiary)}
.status-badge{display:inline-block;font-size:.65rem;font-weight:600;padding:2px 8px;border-radius:100px}
.status-badge.pub{background:var(--success-subtle);color:var(--success)}
.status-badge.draft{background:var(--accent-soft);color:var(--accent-hover)}
[data-theme="dark"] .status-badge.draft{background:var(--accent-soft);color:var(--accent)}

/* Toolbar */
.admin-toolbar{
  padding:10px 20px;border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  background:var(--bg-subtle);flex-wrap:wrap;
}
.admin-toolbar .current-title{font-size:.92rem;font-weight:600;color:var(--text-secondary)}
.admin-toolbar .actions{display:flex;gap:6px;flex-wrap:wrap}

/* Editor */
.admin-editor{flex:1;display:flex;overflow:hidden}
.editor-pane{flex:1;display:flex;flex-direction:column;border-right:1px solid var(--border);overflow:hidden}
.editor-meta{
  display:flex;gap:8px;padding:12px 16px;
  border-bottom:1px solid var(--border);background:var(--bg-subtle);
  flex-wrap:wrap;
}
.editor-meta input,.editor-meta select{
  padding:7px 12px;border:1px solid var(--border);border-radius:var(--radius-xs);
  font-size:.82rem;background:var(--bg);color:var(--text);outline:none;
  transition:border-color var(--transition);
}
.editor-meta input:focus,.editor-meta select:focus{border-color:var(--accent)}
.editor-meta .title-input{flex:1;min-width:180px;font-size:.95rem;font-weight:600}
.editor-meta .slug-input{font-family:var(--font-mono);font-size:.78rem}
.editor-meta .field{display:flex;flex-direction:column;gap:2px}
.editor-meta .field label{font-size:.65rem;font-weight:600;color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.04em}
.editor-textarea{
  flex:1;padding:20px;border:none;resize:none;
  font-family:var(--font-mono);font-size:.88rem;line-height:1.7;
  background:var(--bg);color:var(--text);outline:none;tab-size:2;
}

/* Editor Toolbar */
.editor-toolbar{
  display:flex;align-items:center;gap:6px;
  padding:6px 16px;border-bottom:1px solid var(--border);
  background:var(--bg-subtle);flex-wrap:wrap;
}
.toolbar-btn{
  background:none;border:1px solid transparent;border-radius:var(--radius-xs);
  cursor:pointer;font-size:1.05rem;padding:4px 8px;line-height:1;
  color:var(--text-secondary);transition:all var(--transition);
}
.toolbar-btn:hover{border-color:var(--border);background:var(--bg);color:var(--text)}
.toolbar-sep{width:1px;height:18px;background:var(--border);margin:0 4px}
.toolbar-label{font-size:.72rem;font-weight:600;color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.04em}
.toolbar-select{
  padding:3px 8px;border:1px solid var(--border);border-radius:var(--radius-xs);
  font-size:.78rem;background:var(--bg);color:var(--text-secondary);
  cursor:pointer;outline:none;
}
.toolbar-select:focus{border-color:var(--accent)}

/* Font size classes */
.editor-textarea.font-xs{font-size:.78rem}
.editor-textarea.font-sm{font-size:.82rem}
.editor-textarea.font-md{font-size:.88rem}
.editor-textarea.font-lg{font-size:.95rem}
.editor-textarea.font-xl{font-size:1.05rem}
.preview-content.font-xs{font-size:.92rem;line-height:1.75}
.preview-content.font-sm{font-size:.98rem;line-height:1.78}
.preview-content.font-md{font-size:1.05rem;line-height:1.82}
.preview-content.font-lg{font-size:1.12rem;line-height:1.85}
.preview-content.font-xl{font-size:1.2rem;line-height:1.9}

/* Cover field (URL + upload button) */
.cover-field{display:flex;gap:6px;align-items:center}
.cover-field input{flex:1;min-width:120px}

/* Preview */
.preview-pane{
  flex:1;overflow-y:auto;padding:24px;
  background:var(--bg);
}
.preview-pane .preview-label{
  font-size:.7rem;font-weight:600;text-transform:uppercase;
  color:var(--text-tertiary);margin-bottom:16px;letter-spacing:.06em;
}
.preview-content{max-width:var(--max-w)}
.preview-content h1{font-size:1.5rem;font-weight:700;margin-bottom:12px}

/* ---------- States ---------- */
.empty-state{text-align:center;padding:64px 20px;color:var(--text-tertiary)}
.empty-state .icon{font-size:3rem;margin-bottom:12px;opacity:.4}
.empty-state p{font-size:1rem;margin-bottom:4px}
.loading{text-align:center;padding:48px;color:var(--text-tertiary);font-size:.92rem}

/* ---------- Toast ---------- */
.toast{
  position:fixed;bottom:24px;right:24px;z-index:9999;
  padding:12px 24px;border-radius:var(--radius-sm);
  background:var(--text);color:var(--bg);
  font-size:.88rem;font-weight:500;
  box-shadow:var(--shadow-lg);
  opacity:0;transform:translateY(10px) scale(.96);
  transition:all .25s cubic-bezier(.4,0,.2,1);
  pointer-events:none;
}
.toast.show{opacity:1;transform:translateY(0) scale(1)}
.toast.error{background:var(--danger)}
.toast.success{background:var(--success)}

/* ---------- Responsive (Admin) ---------- */
@media(max-width:768px){
  .admin-layout{flex-direction:column}
  .admin-sidebar{width:100%;max-height:180px;border-right:none;border-bottom:1px solid var(--border)}
  .admin-editor{flex-direction:column}
  .editor-pane{border-right:none;border-bottom:1px solid var(--border);max-height:50vh}
  .preview-pane{max-height:50vh}
}

/* ---------- Animations ---------- */
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.post-card{animation:fadeIn .35s ease both}

/* ---------- Tags (inline from JS) ---------- */
.tag{display:inline-flex;font-size:.75rem;padding:2px 10px;border-radius:100px;background:var(--accent-subtle);color:var(--accent)}

/* ---------- Footer ---------- */
.footer{border-top:1px solid var(--border);padding:32px 0;text-align:center;font-size:.85rem;color:var(--text-tertiary)}

/* ---------- Auth Guard ---------- */
.auth-guard{display:flex;align-items:center;justify-content:center;min-height:100vh;background:var(--bg-subtle)}
.auth-guard-inner{text-align:center;color:var(--text-tertiary);font-size:.92rem}

/* Upload progress overlay */
.upload-overlay{
  position:fixed;inset:0;z-index:9998;
  display:flex;align-items:center;justify-content:center;
  background:rgba(0,0,0,.4);backdrop-filter:blur(4px);
}
.upload-overlay-inner{
  background:var(--bg-card);padding:32px 40px;border-radius:var(--radius);
  box-shadow:var(--shadow-lg);text-align:center;
}
.upload-overlay-inner .spinner{font-size:2rem;margin-bottom:12px;animation:spin 1s linear infinite}
@keyframes spin{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}
.upload-overlay-inner p{font-size:.92rem;color:var(--text-secondary)}

/* ---------- Preview inline ---------- */
.preview-cat{display:inline-flex;font-size:.75rem;font-weight:600;color:var(--accent);background:var(--accent-subtle);padding:3px 10px;border-radius:100px;margin-bottom:12px}
.preview-tags{margin-bottom:16px}
.preview-tag{display:inline-flex;font-size:.72rem;padding:2px 8px;border-radius:100px;background:var(--accent-subtle);color:var(--accent);margin-right:6px}

/* ---------- User Display ---------- */
.user-display{font-size:.82rem;color:var(--text-tertiary)}

/* ---------- Delete button color ---------- */
.delete-btn{color:var(--danger)!important}