:root{
  --bg:#F5F0EB;--bg-card:#FDFBF9;--bg-soft:#EFE8E2;
  --primary:#C9A9A6;--primary-light:#E0CDCB;--primary-dark:#A8867F;
  --accent:#B8A9C9;--accent-light:#D4CDDC;
  --text:#5C4E4A;--text-light:#8B7D78;--text-muted:#B0A39E;
  --border:#E5DDD7;--border-light:#EFE9E4;
  --success:#A8C4A2;--warning:#D4BC8E;--danger:#C99E9E;--info:#A9C4C9;
  --review:#D4BC8E;--review-light:#F0E6D0;
  --lock:#B8A9C9;--lock-light:#E8E2F0;
  --radius:16px;--radius-sm:10px;--radius-lg:24px;
  --shadow:0 2px 12px rgba(139,113,105,.06);
  --shadow-md:0 4px 20px rgba(139,113,105,.08);
  --shadow-lg:0 8px 32px rgba(139,113,105,.12);
  --sidebar-w:240px;--transition:.3s cubic-bezier(.4,0,.2,1);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans SC","Microsoft YaHei","Helvetica Neue",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%;overflow:hidden}
body{font-family:var(--font);background:var(--bg);color:var(--text);font-size:14px;line-height:1.6;-webkit-font-smoothing:antialiased}
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:var(--primary-light)}

/* Sidebar */
.sidebar{position:fixed;left:0;top:0;bottom:0;width:var(--sidebar-w);background:var(--bg-card);border-right:1px solid var(--border);display:flex;flex-direction:column;z-index:100;transition:var(--transition)}
.sidebar-header{padding:20px 20px 14px;text-align:center;border-bottom:1px solid var(--border-light)}
.sidebar-logo{font-size:18px;font-weight:700;color:var(--primary-dark);letter-spacing:.5px}
.sidebar-logo span{font-size:11px;color:var(--text-muted);font-weight:400;display:block;margin-top:2px}
.sync-status{display:inline-flex;align-items:center;gap:6px;margin-top:10px;padding:4px 12px;border-radius:20px;background:var(--bg-soft);cursor:pointer;transition:var(--transition);font-size:12px}
.sync-status:hover{background:var(--border)}
.sync-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0;transition:var(--transition)}
.sync-dot-offline{background:var(--text-muted)}
.sync-dot-connected{background:var(--success);box-shadow:0 0 0 3px rgba(168,196,162,.2)}
.sync-dot-syncing{background:var(--warning);animation:pulse 1.5s infinite}
.sync-dot-error{background:var(--danger)}
.sync-text{font-size:11px;color:var(--text-light);font-weight:500}
.nav-list{flex:1;overflow-y:auto;padding:12px 10px}
.nav-item{display:flex;align-items:center;gap:10px;padding:11px 14px;margin-bottom:3px;border-radius:var(--radius-sm);cursor:pointer;color:var(--text-light);transition:var(--transition);position:relative;overflow:hidden}
.nav-item svg{width:20px;height:20px;flex-shrink:0;stroke-width:1.5}
.nav-item:hover{background:var(--bg-soft);color:var(--text)}
.nav-item.active{background:linear-gradient(135deg,var(--primary-light),var(--bg-soft));color:var(--primary-dark);font-weight:600}
.nav-item.active::before{content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:60%;background:var(--primary);border-radius:0 3px 3px 0}
.nav-label{font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nav-badge{position:absolute;top:8px;right:10px;width:7px;height:7px;border-radius:50%;background:var(--review);display:none}
.nav-badge.show{display:block;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.sidebar-footer{padding:10px 16px;border-top:1px solid var(--border-light);text-align:center}
.save-indicator{font-size:11px;color:var(--success);font-weight:500;margin-bottom:4px;transition:var(--transition)}
.save-indicator.saving{color:var(--warning)}
.footer-text{font-size:10px;color:var(--text-muted);line-height:1.5}
.sidebar-overlay{display:none;position:fixed;inset:0;background:rgba(92,78,74,.3);z-index:99;backdrop-filter:blur(2px)}

/* Main */
.main{margin-left:var(--sidebar-w);height:100vh;overflow-y:auto;transition:var(--transition)}
.content{padding:24px 32px;max-width:1400px;margin:0 auto}
.mobile-header{display:none;position:sticky;top:0;background:var(--bg-card);padding:12px 16px;border-bottom:1px solid var(--border);z-index:50;align-items:center;gap:12px}
.hamburger{width:36px;height:36px;border:none;background:var(--bg-soft);border-radius:var(--radius-sm);cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.hamburger svg{width:20px;height:20px;stroke:var(--text)}
.mobile-title{font-size:15px;font-weight:600;color:var(--primary-dark);flex:1}

/* Pages */
.page{display:none;animation:fadeIn .4s ease}
.page.active{display:block}
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.page-title{font-size:22px;font-weight:700;color:var(--text);margin-bottom:4px;display:flex;align-items:center;gap:8px}
.page-subtitle{font-size:13px;color:var(--text-muted);margin-bottom:20px}

/* Cards */
.card{background:var(--bg-card);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);border:1px solid var(--border-light)}
.card-title{font-size:15px;font-weight:600;margin-bottom:14px;color:var(--text);display:flex;align-items:center;justify-content:space-between}
.grid{display:grid;gap:16px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

/* Dashboard */
.clock-card{background:linear-gradient(135deg,var(--primary-light),var(--accent-light));border-radius:var(--radius-lg);padding:28px;text-align:center;color:var(--text);box-shadow:var(--shadow-md)}
.clock-time{font-size:42px;font-weight:300;letter-spacing:2px;line-height:1.2}
.clock-date{font-size:14px;color:var(--text-light);margin-top:4px}
.clock-greeting{font-size:16px;margin-top:12px;font-weight:500}
.stat-card{background:var(--bg-card);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);border:1px solid var(--border-light);transition:var(--transition)}
.stat-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.stat-icon{width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:10px}
.stat-icon svg{width:22px;height:22px;stroke-width:1.5}
.stat-value{font-size:28px;font-weight:700;line-height:1}
.stat-label{font-size:12px;color:var(--text-muted);margin-top:4px}
.mode-badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:20px;font-size:12px;font-weight:500;background:var(--bg-soft);color:var(--text-light)}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border:none;border-radius:var(--radius-sm);font-size:13px;font-family:inherit;cursor:pointer;transition:var(--transition);font-weight:500}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark)}
.btn-soft{background:var(--bg-soft);color:var(--text)}
.btn-soft:hover{background:var(--border)}
.btn-ghost{background:transparent;color:var(--text-light);border:1px solid var(--border)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary-dark)}
.btn-success{background:var(--success);color:#fff}
.btn-success:hover{opacity:.9}
.btn-danger{background:var(--danger);color:#fff}
.btn-sm{padding:5px 10px;font-size:12px}
.btn svg{width:16px;height:16px;stroke-width:1.5}

/* Inputs */
.input,.select,.textarea{width:100%;padding:10px 14px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:13px;font-family:inherit;background:var(--bg-card);color:var(--text);transition:var(--transition)}
.input:focus,.select:focus,.textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(201,169,166,.1)}
.textarea{resize:vertical;min-height:80px}
.label{display:block;font-size:12px;color:var(--text-light);margin-bottom:5px;font-weight:500}
.search-box{display:flex;gap:8px;margin-bottom:12px;align-items:center}
.search-box .input{flex:1}

/* Collapsible Form Sections */
.form-section{border:1px solid var(--border-light);border-radius:var(--radius-sm);margin-bottom:12px;overflow:hidden;transition:var(--transition)}
.form-section-header{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;background:var(--bg-soft);cursor:pointer;font-size:13px;font-weight:600;color:var(--text);user-select:none;transition:var(--transition)}
.form-section-header:hover{background:var(--border)}
.form-section-icon{font-size:10px;transition:var(--transition);color:var(--text-muted)}
.form-section-body{max-height:0;overflow:hidden;transition:max-height .35s ease,padding .35s ease;padding:0 14px}
.form-section.open .form-section-body{max-height:800px;padding:14px}
.form-section.open .form-section-icon{transform:rotate(180deg)}

/* Tags */
.tag{display:inline-flex;align-items:center;padding:3px 10px;border-radius:20px;font-size:11px;font-weight:500;background:var(--bg-soft);color:var(--text-light)}
.tag-primary{background:var(--primary-light);color:var(--primary-dark)}
.tag-accent{background:var(--accent-light);color:var(--accent)}
.tag-success{background:rgba(168,196,162,.2);color:#6B9262}
.tag-warning{background:rgba(212,188,142,.2);color:#A68B4E}
.tag-danger{background:rgba(201,158,158,.2);color:#9B6E6E}
.tag-info{background:rgba(169,196,201,.2);color:#6E9299}
.tag-review{background:var(--review-light);color:var(--warning);cursor:pointer}
.tag-style{background:var(--accent-light);color:var(--accent);font-size:10px}

/* Video Links */
.video-link{display:inline-flex;align-items:center;gap:4px;padding:4px 12px;border-radius:20px;font-size:11px;font-weight:500;text-decoration:none;border:1px solid;transition:var(--transition);cursor:pointer}
.video-link:hover{transform:translateY(-1px);box-shadow:var(--shadow)}
.video-link-douyin{border-color:#333;color:#333;background:rgba(0,0,0,.03)}
.video-link-bilibili{border-color:#FB7299;color:#FB7299;background:rgba(251,114,153,.05)}
.video-link-youtube{border-color:#FF0000;color:#cc0000;background:rgba(255,0,0,.03)}
.video-link-xhs{border-color:#FF2442;color:#FF2442;background:rgba(255,36,66,.03)}
.video-link-web{border-color:var(--info);color:#6E9299;background:rgba(169,196,201,.05)}

/* Exercise cards */
.exercise-card{background:var(--bg-card);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow);border:1px solid var(--border-light);transition:var(--transition);cursor:pointer;position:relative;overflow:hidden}
.exercise-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:var(--primary-light)}
.exercise-card.review-due{border-color:var(--review);box-shadow:0 2px 12px rgba(212,188,142,.15)}
.exercise-img{width:100%;height:130px;border-radius:var(--radius-sm);overflow:hidden;margin-bottom:10px;background:var(--bg-soft)}
.exercise-img svg{width:100%;height:100%;display:block}
.exercise-img-detail{width:100%;height:200px;border-radius:var(--radius);overflow:hidden;margin-bottom:16px;background:var(--bg-soft)}
.exercise-img-detail svg{width:100%;height:100%;display:block}
.drag-item-thumb{width:44px;height:44px;border-radius:8px;overflow:hidden;flex-shrink:0;background:var(--bg-soft)}
.drag-item-thumb svg{width:100%;height:100%;display:block}
.exercise-name{font-size:15px;font-weight:600;margin-bottom:4px}
.exercise-name-en{font-size:12px;color:var(--text-muted)}
.exercise-meta{display:flex;flex-wrap:wrap;gap:4px;margin-top:8px}
.fav-btn{position:absolute;top:12px;right:12px;width:28px;height:28px;border:none;background:transparent;cursor:pointer;color:var(--text-muted);transition:var(--transition)}
.fav-btn:hover{color:var(--warning)}
.fav-btn.active{color:var(--warning)}
.review-badge{position:absolute;top:12px;left:12px;padding:2px 8px;border-radius:12px;font-size:10px;font-weight:600;background:var(--review);color:#fff;z-index:1;animation:pulse 2s infinite}

/* Modal */
.modal-overlay{display:none;position:fixed;inset:0;background:rgba(92,78,74,.35);z-index:200;backdrop-filter:blur(3px);align-items:center;justify-content:center;padding:20px}
.modal-overlay.show{display:flex;animation:fadeIn .25s ease}
.modal{background:var(--bg-card);border-radius:var(--radius-lg);max-width:560px;width:100%;max-height:85vh;overflow-y:auto;box-shadow:var(--shadow-lg);animation:slideUp .3s cubic-bezier(.4,0,.2,1)}
@keyframes slideUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.modal-header{padding:20px 24px;border-bottom:1px solid var(--border-light);display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;background:var(--bg-card);z-index:1}
.modal-title{font-size:17px;font-weight:600}
.modal-close{width:30px;height:30px;border:none;background:var(--bg-soft);border-radius:8px;cursor:pointer;font-size:18px;color:var(--text-light);transition:var(--transition);display:flex;align-items:center;justify-content:center}
.modal-close:hover{background:var(--border);color:var(--text)}
.modal-body{padding:24px}
.modal-footer{padding:16px 24px;border-top:1px solid var(--border-light);display:flex;gap:10px;justify-content:flex-end}

/* Drag & Drop */
.drag-zone{min-height:200px;border:2px dashed var(--border);border-radius:var(--radius);padding:12px;transition:var(--transition)}
.drag-zone.drag-over{border-color:var(--primary);background:rgba(201,169,166,.05)}
.drag-item{background:var(--bg-soft);border-radius:var(--radius-sm);padding:10px 12px;margin-bottom:8px;display:flex;align-items:center;gap:8px;cursor:grab;transition:var(--transition)}
.drag-item:hover{background:var(--border)}
.drag-item .grip{color:var(--text-muted);cursor:grab}
.drag-item .remove{margin-left:auto;cursor:pointer;color:var(--danger);width:24px;height:24px;display:flex;align-items:center;justify-content:center;font-size:18px;border:none;background:transparent}

/* Toggle */
.toggle{position:relative;width:44px;height:24px;background:var(--border);border-radius:12px;cursor:pointer;transition:var(--transition);flex-shrink:0}
.toggle.on{background:var(--primary)}
.toggle::after{content:'';position:absolute;top:2px;left:2px;width:20px;height:20px;background:#fff;border-radius:50%;transition:var(--transition);box-shadow:0 1px 3px rgba(0,0,0,.2)}
.toggle.on::after{transform:translateX(20px)}
.toggle-label{font-size:12px;color:var(--text-muted);font-weight:500}

/* Chips */
.filter-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.chip{padding:6px 14px;border-radius:20px;font-size:12px;cursor:pointer;transition:var(--transition);background:var(--bg-card);border:1px solid var(--border);color:var(--text-light)}
.chip:hover{border-color:var(--primary);color:var(--primary-dark)}
.chip.active{background:var(--primary);color:#fff;border-color:var(--primary)}

/* AI Search */
.ai-search-box{display:flex;gap:8px;align-items:center;margin-bottom:12px}
.ai-search-box .input{flex:1}
.ai-toggle-wrap{display:flex;align-items:center;gap:8px;padding:6px 12px;background:var(--bg-soft);border-radius:var(--radius-sm);white-space:nowrap}
.ai-result-card{padding:14px;background:linear-gradient(135deg,var(--accent-light),var(--bg-soft));border-radius:var(--radius);margin-bottom:10px;border:1px solid var(--accent-light)}
.ai-result-title{font-size:13px;font-weight:600;color:var(--accent);margin-bottom:6px;display:flex;align-items:center;gap:6px}
.ai-result-body{font-size:12px;color:var(--text-light);line-height:1.7}
.ai-searching{text-align:center;padding:30px;color:var(--text-muted)}
.ai-searching .spinner{width:32px;height:32px;border:3px solid var(--bg-soft);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite;margin:0 auto 10px}
@keyframes spin{to{transform:rotate(360deg)}}

/* Lock Screen */
.lock-screen{text-align:center;padding:40px 20px}
.lock-icon{width:64px;height:64px;margin:0 auto 16px;background:var(--lock-light);border-radius:50%;display:flex;align-items:center;justify-content:center}
.lock-icon svg{width:32px;height:32px;stroke:var(--lock);stroke-width:1.5}
.lock-title{font-size:18px;font-weight:600;color:var(--text);margin-bottom:6px}
.lock-desc{font-size:13px;color:var(--text-muted);margin-bottom:20px}
.lock-input{max-width:280px;margin:0 auto}
.lock-input .input{text-align:center;letter-spacing:4px;font-size:18px}

/* Review System */
.review-banner{background:linear-gradient(135deg,var(--review-light),var(--bg-soft));border-radius:var(--radius);padding:14px 18px;margin-bottom:16px;display:flex;align-items:center;gap:12px;border:1px solid var(--review-light)}
.review-banner-icon{width:36px;height:36px;background:var(--review);border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.review-banner-icon svg{width:20px;height:20px;stroke:#fff;stroke-width:1.5}
.review-banner-text{flex:1}
.review-banner-title{font-size:13px;font-weight:600;color:var(--text)}
.review-banner-sub{font-size:12px;color:var(--text-muted);margin-top:2px}
.mastery-btn{padding:6px 14px;border-radius:20px;font-size:12px;cursor:pointer;border:1px solid var(--border);background:var(--bg-card);color:var(--text-light);transition:var(--transition)}
.mastery-btn:hover{border-color:var(--primary);color:var(--primary-dark)}
.mastery-btn.mastered{background:var(--success);color:#fff;border-color:var(--success)}
.review-progress{display:flex;gap:4px;margin-top:8px}
.review-dot{width:24px;height:6px;border-radius:3px;background:var(--border)}
.review-dot.done{background:var(--success)}
.review-dot.current{background:var(--review)}

/* Book Reader */
.book-highlight{background:rgba(212,188,142,.12);border-left:3px solid var(--warning);padding:10px 14px;border-radius:0 8px 8px 0;margin-bottom:8px;cursor:pointer;transition:var(--transition)}
.book-highlight:hover{background:rgba(212,188,142,.2)}
.book-highlight-text{font-size:13px;color:var(--text);line-height:1.7}
.book-highlight-meta{font-size:11px;color:var(--text-muted);margin-top:4px;display:flex;align-items:center;gap:8px}

/* Posture Cards */
.posture-card{background:var(--bg-card);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);border:1px solid var(--border-light);border-left:3px solid var(--accent);cursor:pointer;transition:var(--transition)}
.posture-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}

/* Ledger */
.ledger-row{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid var(--border-light)}
.ledger-amount{font-weight:600;font-size:15px}
.ledger-amount.income{color:var(--success)}
.ledger-amount.expense{color:var(--danger)}

/* Chart */
.chart-container{position:relative;width:100%;height:200px}
.chart-svg{width:100%;height:100%}

/* Task Check-in */
.task-item{display:flex;align-items:flex-start;gap:12px;padding:14px;background:var(--bg-card);border-radius:var(--radius);border:1px solid var(--border-light);margin-bottom:10px;transition:var(--transition)}
.task-item:hover{box-shadow:var(--shadow)}
.task-item.completed{opacity:.6}
.task-item.completed .task-title{text-decoration:line-through;color:var(--text-muted)}
.task-checkbox{width:22px;height:22px;border:2px solid var(--border);border-radius:6px;cursor:pointer;flex-shrink:0;display:flex;align-items:center;justify-content:center;transition:var(--transition);margin-top:2px}
.task-checkbox.checked{background:var(--success);border-color:var(--success);color:#fff;font-size:14px}
.task-content{flex:1;min-width:0}
.task-title{font-size:14px;font-weight:600;color:var(--text)}
.task-meta{display:flex;flex-wrap:wrap;gap:6px;margin-top:4px}
.task-actions{display:flex;gap:6px;flex-shrink:0}

/* History */
.history-date-group{margin-bottom:24px}
.history-date-header{font-size:14px;font-weight:700;color:var(--primary-dark);margin-bottom:10px;padding:6px 14px;background:var(--bg-soft);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:space-between}
.history-item{display:flex;align-items:center;gap:10px;padding:10px 14px;border-bottom:1px solid var(--border-light)}
.history-item-icon{width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:14px}
.history-item-content{flex:1;min-width:0}
.history-item-title{font-size:13px;font-weight:500;color:var(--text)}
.history-item-meta{font-size:11px;color:var(--text-muted)}

/* Settings */
.settings-section{background:var(--bg-card);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);border:1px solid var(--border-light);margin-bottom:16px}
.settings-section-title{font-size:15px;font-weight:600;margin-bottom:14px;color:var(--text);display:flex;align-items:center;gap:8px}
.settings-row{display:flex;align-items:center;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--border-light)}
.settings-row:last-child{border-bottom:none}
.sql-block{background:#2d2d2d;color:#ccc;padding:14px;border-radius:var(--radius-sm);font-size:11px;font-family:monospace;line-height:1.6;overflow-x:auto;margin-top:10px;white-space:pre}
.connection-test{padding:10px 14px;border-radius:var(--radius-sm);font-size:12px;margin-top:10px;display:none}
.connection-test.show{display:block}
.connection-test.success{background:rgba(168,196,162,.15);color:#6B9262;border:1px solid rgba(168,196,162,.3)}
.connection-test.error{background:rgba(201,158,158,.15);color:#9B6E6E;border:1px solid rgba(201,158,158,.3)}

/* Toast */
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(100px);background:var(--text);color:#fff;padding:10px 24px;border-radius:var(--radius-sm);font-size:13px;z-index:300;transition:var(--transition);box-shadow:var(--shadow-lg)}
.toast.show{transform:translateX(-50%) translateY(0)}

/* Empty */
.empty{text-align:center;padding:40px 20px;color:var(--text-muted)}
.empty svg{width:48px;height:48px;stroke:var(--border);margin-bottom:12px}

/* Color picker */
.color-grid{display:flex;gap:10px;flex-wrap:wrap}
.color-swatch{width:36px;height:36px;border-radius:10px;cursor:pointer;border:2px solid transparent;transition:var(--transition)}
.color-swatch:hover{transform:scale(1.1)}
.color-swatch.active{border-color:var(--text);box-shadow:0 0 0 2px var(--bg-card),0 0 0 4px var(--text)}

.note-editor{min-height:120px}

/* Section divider */
.section-divider{height:1px;background:var(--border-light);margin:20px 0}
.section-label{font-size:12px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:1px;margin-bottom:12px;padding:0 4px}

/* Tab bar */
.tab-bar{display:flex;gap:4px;background:var(--bg-soft);border-radius:var(--radius-sm);padding:4px;margin-bottom:16px}
.tab-btn{flex:1;padding:8px 12px;border:none;background:transparent;border-radius:8px;font-size:13px;cursor:pointer;color:var(--text-muted);transition:var(--transition);font-family:inherit}
.tab-btn.active{background:var(--bg-card);color:var(--primary-dark);font-weight:600;box-shadow:var(--shadow)}

/* Link card */
.link-card{display:flex;align-items:center;gap:10px;padding:10px 14px;background:var(--bg-soft);border-radius:var(--radius-sm);margin-bottom:8px;cursor:pointer;transition:var(--transition)}
.link-card:hover{background:var(--border)}

/* Utils */
.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-2{gap:8px}.gap-3{gap:12px}.gap-4{gap:16px}
.mt-2{margin-top:8px}.mt-3{margin-top:12px}.mt-4{margin-top:16px}.mb-2{margin-bottom:8px}.mb-3{margin-bottom:12px}.mb-4{margin-bottom:16px}
.text-sm{font-size:12px}.text-muted{color:var(--text-muted)}.text-light{color:var(--text-light)}.text-center{text-align:center}
.w-full{width:100%}.cursor-pointer{cursor:pointer}.relative{position:relative}
.badge-dot{width:8px;height:8px;border-radius:50%;display:inline-block}

/* Responsive */
@media(max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .content{padding:20px 24px}
}
@media(max-width:768px){
  :root{--sidebar-w:0px}
  .sidebar{transform:translateX(-100%);width:260px}
  .sidebar.open{transform:translateX(0)}
  .sidebar-overlay.show{display:block}
  .main{margin-left:0}
  .mobile-header{display:flex}
  .content{padding:16px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .clock-time{font-size:32px}
  .modal{max-width:100%;border-radius:var(--radius)}
  .search-box{flex-direction:column}
  .ai-search-box{flex-direction:column;align-items:stretch}
  .ai-toggle-wrap{justify-content:center}
  .tab-bar{flex-wrap:wrap}
}
@media(max-width:480px){
  .clock-time{font-size:28px}
  .stat-value{font-size:24px}
  .nav-item{padding:12px}
  .tab-btn{font-size:12px;padding:6px 8px}
}