/* ═══════════════════════════════════════════════════
   tobiers.top — DeepSeek 配色极简博客
   ═══════════════════════════════════════════════════ */

/* ── CSS 变量 ─────────────────────────────────────── */
:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f7f8fa;
  --bg-tertiary: #f0f2f5;
  --text-primary: #1d1d1f;
  --text-secondary: #6b7280;
  --text-tertiary: #9ca3af;
  --brand: #3b6ffe;
  --brand-hover: #2960e0;
  --brand-light: #eef3ff;
  --border: #e5e7eb;
  --border-light: #f0f0f5;
  --shadow: 0 1px 3px rgba(0,0,0,.06);
  --shadow-lg: 0 4px 24px rgba(0,0,0,.08);
  --radius: 8px;
  --radius-lg: 12px;
  --sidebar-bg: #f9fafb;
  --card-bg: #ffffff;
  --code-bg: #f6f8fa;
  --overlay: rgba(0,0,0,.3);
}

[data-theme="dark"] {
  --bg-primary: #0d0d0d;
  --bg-secondary: #1a1a1a;
  --bg-tertiary: #262626;
  --text-primary: #e8e8e8;
  --text-secondary: #999999;
  --text-tertiary: #666666;
  --brand: #5b9cf5;
  --brand-hover: #7ab4ff;
  --brand-light: #152233;
  --border: #333333;
  --border-light: #2a2a2a;
  --shadow: 0 1px 3px rgba(0,0,0,.5);
  --shadow-lg: 0 4px 24px rgba(0,0,0,.7);
  --sidebar-bg: #111111;
  --card-bg: #1c1c1c;
  --code-bg: #1e1e1e;
  --overlay: rgba(0,0,0,.7);
}

/* ── Reset ────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;-webkit-font-smoothing:antialiased}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
     background:var(--bg-primary);color:var(--text-primary);line-height:1.7;min-height:100vh}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--brand-hover)}
img{max-width:100%}

/* ── 遮罩 ─────────────────────────────────────────── */
.overlay{position:fixed;inset:0;background:var(--overlay);z-index:90;opacity:0;
          pointer-events:none;transition:opacity .3s}
.overlay.show{opacity:1;pointer-events:auto}

/* ── 侧边栏 ───────────────────────────────────────── */
.sidebar{position:fixed;top:0;left:0;width:300px;height:100vh;z-index:100;
         background:var(--sidebar-bg);border-right:1px solid var(--border);
         transform:translateX(-100%);transition:transform .3s cubic-bezier(.4,0,.2,1);
         display:flex;flex-direction:column}
.sidebar.open{transform:translateX(0)}
.sidebar-inner{flex:1;overflow-y:auto;padding:20px 16px;display:flex;flex-direction:column;gap:16px}

/* 搜索 */
.sidebar-search{position:relative;display:flex;align-items:center}
.search-icon{position:absolute;left:12px;color:var(--text-tertiary);pointer-events:none}
.sidebar-search-input{width:100%;padding:10px 36px 10px 36px;border:1px solid var(--border);
  border-radius:20px;background:var(--bg-primary);color:var(--text-primary);
  font-size:14px;outline:none;transition:border .2s,box-shadow .2s}
.sidebar-search-input:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-light)}
.sidebar-search-input::placeholder{color:var(--text-tertiary)}
.search-clear{position:absolute;right:8px;background:none;border:none;color:var(--text-tertiary);
  font-size:18px;cursor:pointer;padding:4px;line-height:1}
.search-clear:hover{color:var(--text-primary)}

/* 标签列表 */
.sidebar-tags{display:flex;flex-direction:column;gap:2px}
.sidebar-empty{text-align:center;color:var(--text-tertiary);font-size:14px;padding:24px 0}
.tag-group{border-radius:6px;overflow:hidden}
.tag-header{display:flex;align-items:center;gap:8px;padding:8px 10px;cursor:pointer;
  border-radius:6px;transition:background .15s;user-select:none}
.tag-header:hover{background:var(--bg-tertiary)}
.tag-arrow{color:var(--text-tertiary);flex-shrink:0;transition:transform .2s}
.tag-arrow.rotated{transform:rotate(90deg)}
.tag-name{font-size:14px;font-weight:500;color:var(--text-primary);flex:1}
.tag-count{font-size:12px;color:var(--text-tertiary);background:var(--bg-tertiary);
  padding:1px 8px;border-radius:10px;min-width:24px;text-align:center}
.tag-articles{margin-left:18px;border-left:2px solid var(--border-light);padding:4px 0 4px 12px}
.tag-article-link{display:block;padding:4px 8px;font-size:13px;color:var(--text-secondary);
  border-radius:4px;transition:background .15s,color .15s;white-space:nowrap;
  overflow:hidden;text-overflow:ellipsis;cursor:pointer}
.tag-article-link:hover,.tag-article-link.active{color:var(--brand);background:var(--brand-light)}

/* 搜索结果 */
.sidebar-results{display:flex;flex-direction:column;gap:12px}
.search-section-title{font-size:11px;font-weight:600;color:var(--text-tertiary);
  text-transform:uppercase;letter-spacing:.5px;padding:0 4px}
.search-content-item{margin-bottom:8px}
.search-snippet{font-size:12px;color:var(--text-tertiary);padding:4px 8px 8px;
  line-height:1.5}
.search-snippet em{color:var(--brand);font-style:normal;font-weight:600}

/* ── 主内容 ───────────────────────────────────────── */
.main-wrap{transition:margin-left .3s cubic-bezier(.4,0,.2,1);min-height:100vh;
           display:flex;flex-direction:column}
/* 侧边栏打开时不需要推挤（用浮层，更简洁） */


/* ── 导航栏 ───────────────────────────────────────── */
.navbar{display:flex;align-items:center;justify-content:space-between;
  padding:0 24px;height:56px;border-bottom:1px solid var(--border);
  background:var(--bg-primary);position:sticky;top:0;z-index:50}
.nav-left,.nav-right{display:flex;align-items:center;gap:8px}
.nav-brand{font-size:18px;font-weight:700;color:var(--text-primary);letter-spacing:-.5px}
.nav-brand:hover{color:var(--brand)}
.nav-btn{background:none;border:none;color:var(--text-secondary);
  cursor:pointer;padding:6px;border-radius:6px;display:flex;align-items:center;
  justify-content:center;transition:background .15s,color .15s}
.nav-btn:hover{background:var(--bg-secondary);color:var(--text-primary)}
.login-btn,.admin-btn{font-size:14px;padding:6px 16px;font-weight:500}
.login-btn{color:var(--brand)}
.admin-btn{color:var(--text-secondary)}

/* ── 内容区 ───────────────────────────────────────── */
.content{flex:1;max-width:760px;width:100%;margin:0 auto;padding:40px 24px}

/* ── 首页 Hero ────────────────────────────────────── */
.hero{text-align:center;padding:60px 0 48px}
.hero-title{font-size:2.5rem;font-weight:800;letter-spacing:-1px;
  background:linear-gradient(135deg,var(--brand),#a78bfa);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent}
.hero-subtitle{font-size:1.1rem;color:var(--text-secondary);margin-top:8px}

/* ── 文章列表 ─────────────────────────────────────── */
.post-list{display:flex;flex-direction:column;gap:0}
.post-card{padding:24px;margin-bottom:16px;background:var(--card-bg);
  border:1.5px solid #d1d5db;border-radius:var(--radius-lg);
  box-shadow:0 2px 8px rgba(0,0,0,.08);transition:box-shadow .2s}
.post-card:hover{box-shadow:0 4px 16px rgba(0,0,0,.12)}
[data-theme="dark"] .post-card{border-color:#444;box-shadow:0 2px 8px rgba(0,0,0,.6)}
[data-theme="dark"] .post-card:hover{box-shadow:0 4px 16px rgba(0,0,0,.8)}
.post-card:last-child{margin-bottom:0}
.post-title{font-size:1.3rem;font-weight:600;margin-bottom:6px}
.post-title a{color:var(--text-primary)}
.post-title a:hover{color:var(--brand)}
.post-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-tertiary);margin-bottom:8px}
.post-tag{display:inline-block;padding:1px 8px;border-radius:4px;
  background:var(--brand-light);color:var(--brand);font-size:12px;margin-right:4px}
.post-summary{font-size:15px;color:var(--text-secondary);line-height:1.7;
  display:-webkit-box;-webkit-box-orient:vertical;overflow:hidden;
  -webkit-line-clamp:3}
@media (max-width:768px){.post-summary{-webkit-line-clamp:2;font-size:14px}}
.post-thumbs{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:12px}
.post-thumb{aspect-ratio:16/10;overflow:hidden;border-radius:6px;border:1px solid var(--border-light)}
.post-thumb img{width:100%;height:100%;object-fit:cover;display:block}
@media (max-width:768px){.post-thumbs{grid-template-columns:repeat(2,1fr)}}
@media (max-width:480px){.post-thumbs{grid-template-columns:repeat(2,1fr);gap:6px}}
.empty-state{text-align:center;color:var(--text-tertiary);padding:60px 0;font-size:15px}

/* ── 文章详情 ─────────────────────────────────────── */
.article-detail{padding-top:20px}
.article-title{font-size:2rem;font-weight:700;margin-bottom:12px;line-height:1.3}
.article-meta{display:flex;align-items:center;gap:12px;font-size:14px;
  color:var(--text-tertiary);margin-bottom:32px;padding-bottom:20px;
  border-bottom:1px solid var(--border-light)}
.article-body{font-size:16px;line-height:1.85;color:var(--text-primary)}
.article-body h1,.article-body h2,.article-body h3{margin-top:2em;margin-bottom:.6em;font-weight:600}
.article-body h1{font-size:1.6em}.article-body h2{font-size:1.3em}.article-body h3{font-size:1.1em}
.article-body p{margin-bottom:1em}
.article-body ul,.article-body ol{margin-bottom:1em;padding-left:1.5em}
.article-body li{margin-bottom:.3em}
.article-body blockquote{border-left:3px solid var(--brand);padding:4px 16px;margin:1em 0;
  color:var(--text-secondary);background:var(--bg-secondary);border-radius:0 6px 6px 0}
.article-body pre{background:var(--code-bg);border-radius:var(--radius);padding:16px 20px;
  overflow-x:auto;font-size:14px;line-height:1.6;margin:1em 0;border:1px solid var(--border)}
.article-body code{font-family:"JetBrains Mono","Fira Code",monospace;font-size:.9em}
.article-body p code{background:var(--code-bg);padding:2px 6px;border-radius:4px}
.article-body img{border-radius:var(--radius);margin:1em 0}
.article-body table{width:100%;border-collapse:collapse;margin:1em 0}
.article-body th,.article-body td{border:1px solid var(--border);padding:8px 12px;text-align:left}
.article-body th{background:var(--bg-secondary);font-weight:600}
.article-back{margin-top:40px;padding-top:20px;border-top:1px solid var(--border-light)}

/* ── 登录 ─────────────────────────────────────────── */
.page-login{display:flex;justify-content:center;align-items:center;min-height:60vh}
.login-card{width:100%;max-width:380px;background:var(--card-bg);
  padding:40px 32px;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);
  border:1px solid var(--border)}
.login-card h2{font-size:1.5rem;font-weight:700;margin-bottom:24px;text-align:center}
.login-card .input{width:100%;margin-bottom:16px}
.login-error{color:#ef4444;font-size:13px;margin-bottom:12px;text-align:center}
.otp-hint{text-align:center;color:var(--text-secondary);font-size:14px;margin-bottom:16px}
.otp-input{text-align:center;font-size:24px!important;letter-spacing:8px;font-family:monospace}
.login-actions{display:flex;gap:12px;justify-content:flex-end;margin-top:16px}

/* ── 表单组件 ─────────────────────────────────────── */
.input{padding:10px 14px;border:1px solid var(--border);border-radius:var(--radius);
  background:var(--bg-primary);color:var(--text-primary);font-size:15px;
  font-family:inherit;outline:none;transition:border .2s,box-shadow .2s}
.input:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-light)}
.input::placeholder{color:var(--text-tertiary)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:8px 20px;font-size:14px;font-weight:500;border-radius:var(--radius);
  border:1px solid transparent;cursor:pointer;font-family:inherit;
  transition:all .15s;white-space:nowrap}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-hover)}
.btn-secondary{background:var(--bg-secondary);color:var(--text-primary);border-color:var(--border)}
.btn-secondary:hover{background:var(--bg-tertiary)}
.btn-small{padding:4px 12px;font-size:13px}
.btn-danger{color:#ef4444;border-color:transparent;background:transparent}
.btn-danger:hover{background:#fef2f2;color:#dc2626}
.btn:disabled{opacity:.6;cursor:not-allowed}

/* ── 管理面板 ─────────────────────────────────────── */
.admin-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.admin-header h2{font-size:1.5rem;font-weight:700}
.admin-list{display:flex;flex-direction:column;gap:2px}
.admin-item{display:flex;align-items:center;justify-content:space-between;
  padding:14px 16px;border-radius:var(--radius);transition:background .15s;
  border:1px solid var(--border-light)}
.admin-item:hover{background:var(--bg-secondary)}
.admin-item.draft{opacity:.7}
.admin-item-info{display:flex;flex-direction:column;gap:4px;min-width:0;flex:1}
.admin-item-title{font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.admin-item-meta{font-size:12px;color:var(--text-tertiary);display:flex;align-items:center;gap:8px}
.admin-badge{font-size:11px;padding:1px 6px;border-radius:4px;font-weight:500}
.badge-pub{background:#dcfce7;color:#16a34a}
[data-theme="dark"] .badge-pub{background:#0d3b1e;color:#4ade80}
.badge-draft{background:var(--bg-tertiary);color:var(--text-secondary)}
.admin-item-actions{display:flex;gap:4px;flex-shrink:0}

/* ── 编辑器 ───────────────────────────────────────── */
.page-editor{display:flex;flex-direction:column;gap:16px;max-width:100%}
.editor-top,.editor-tags-row{max-width:760px}
.editor-title{font-size:1.4rem!important;font-weight:600!important;width:100%}
.editor-body{display:flex;gap:16px;flex:1;min-height:50vh}
.editor-pane,.preview-pane{flex:1;min-width:0}
.editor-textarea{width:100%;height:100%;min-height:50vh;padding:16px;
  border:1px solid var(--border);border-radius:var(--radius);
  background:var(--bg-primary);color:var(--text-primary);
  font-family:"JetBrains Mono","Fira Code",monospace;font-size:14px;
  line-height:1.7;resize:none;outline:none}
.editor-textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-light)}
.preview-content{min-height:50vh;padding:16px;border:1px solid var(--border-light);
  border-radius:var(--radius);background:var(--bg-secondary);
  font-size:15px;line-height:1.8}
.preview-content h1,.preview-content h2,.preview-content h3{margin-top:1.5em;margin-bottom:.5em}
.preview-content p{margin-bottom:.8em}
.preview-content pre{background:var(--code-bg);padding:12px 16px;border-radius:6px;
  overflow-x:auto;font-size:13px;border:1px solid var(--border)}
.preview-content code{font-size:.9em}
.preview-content blockquote{border-left:3px solid var(--brand);padding:4px 12px;
  color:var(--text-secondary);margin:.8em 0}
.preview-content img{border-radius:6px;max-width:100%}
.editor-toolbar{display:flex;align-items:center;justify-content:space-between;
  padding-top:12px;border-top:1px solid var(--border-light)}
.editor-toolbar-left,.editor-toolbar-right{display:flex;align-items:center;gap:8px}
.draft-indicator{font-size:12px;padding:2px 8px;border-radius:4px}
.draft-indicator.saved{color:#16a34a;background:#dcfce7}
[data-theme="dark"] .draft-indicator.saved{color:#4ade80;background:#0d3b1e}
.draft-indicator.unsaved{color:#f59e0b;background:#fef3c7}
[data-theme="dark"] .draft-indicator.unsaved{color:#fbbf24;background:#2d1f0a}

/* 恢复提示 */
.recover-banner{background:var(--brand-light);border:1px solid var(--brand);
  border-radius:var(--radius);padding:12px 16px;font-size:14px;
  display:flex;align-items:center;gap:8px}
.recover-banner a{font-weight:600}
.recover-dismiss{margin-left:auto;background:none;border:none;color:var(--text-tertiary);
  font-size:18px;cursor:pointer}

/* ── 响应式 ───────────────────────────────────────── */
@media (max-width:768px){
  .editor-body{flex-direction:column}
  .navbar{padding:0 16px}
  .content{padding:24px 16px}
  .hero{padding:40px 0 32px}
  .hero-title{font-size:1.8rem}
  .sidebar{width:280px}
  .login-card{padding:32px 24px}
}