*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#f8f9fc;--surface:#ffffff;--surface2:#f3f4f8;--surface3:#e8eaef;
  --border:#e2e5eb;--border2:#edf0f5;
  --text:#1a1a1f;--text2:#52525b;--text3:#9ca3af;
  --accent:#4f46e5;--accent2:#6366f1;--accent-soft:#eef2ff;--accent-hover:#4338ca;
  --red:#ef4444;--green:#22c55e;--orange:#f59e0b;
  --r:12px;--rsm:8px;--rxs:6px;
  --sh:0 1px 3px rgba(0,0,0,.06),0 4px 12px rgba(0,0,0,.04);
  --shm:0 4px 16px rgba(0,0,0,.1),0 1px 4px rgba(0,0,0,.06);
  --shl:0 8px 32px rgba(0,0,0,.14),0 2px 8px rgba(0,0,0,.08);
  --font:'Noto Sans SC',sans-serif;
  --serif:'Noto Serif SC',serif;
  --mono:'DM Mono',monospace;
  --left-w:100px;
}
html,body{height:100%;overflow:hidden}
body{font-family:var(--font);background:var(--bg);color:var(--text);font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased;transition:background .2s,color .2s,background-image .3s}
::-webkit-scrollbar{width:5px;height:5px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}
button{font-family:var(--font);cursor:pointer;border:none;background:none;outline:none}
input,textarea{font-family:var(--font);outline:none;border:none;background:transparent;color:var(--text)}
/* ══ LAYOUT ══ */
#app{display:flex;height:100dvh;min-height:100dvh;overflow:hidden;position:relative;background:transparent}
/* ══ LEFT PANEL ══ */
#left{
  width:var(--left-w);min-width:var(--left-w);
  background:var(--surface);border-right:1px solid var(--border);
  display:flex;flex-direction:column;overflow:hidden;
  transition:width .2s ease,min-width .2s ease;
  flex-shrink:0;z-index:56;position:relative;
}
#left.collapsed{width:0;min-width:0;border-right:none}
/* hover zone for sidebar expand */
#left-hover-zone{
  position:fixed;left:0;top:0;bottom:0;width:8px;z-index:60;
  pointer-events:none;
}
#left-hover-zone.active{pointer-events:all;cursor:pointer}
#left-inner{display:flex;flex-direction:column;height:100%;overflow:hidden;min-width:var(--left-w);min-height:0}
/* left nav - vertical icon bar */
#left-nav{display:flex;flex-direction:column;align-items:center;gap:4px;padding:12px 8px calc(12px + env(safe-area-inset-bottom));background:var(--surface);flex-shrink:0;overflow-y:auto;flex:1}
.nav-icon-btn{width:40px;height:40px;flex-shrink:0;border-radius:var(--rsm);display:flex;align-items:center;justify-content:center;color:var(--text2);transition:all .15s}
.nav-icon-btn:hover{background:var(--surface2);color:var(--text)}
.nav-icon-btn.on{background:var(--accent-soft);color:var(--accent)}
.nav-text-btn{display:block;width:100%;padding:10px 8px;border-radius:var(--rsm);text-align:center;font-size:13px;color:var(--text2);transition:all .15s;text-decoration:none;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;cursor:pointer}
.nav-text-btn:hover{background:var(--surface2);color:var(--text)}
/* recycle bin */
.trash-row{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--rsm);cursor:pointer;transition:all .15s;font-size:14px;color:var(--text2);margin-bottom:2px}
.trash-row:hover{background:var(--surface2);color:var(--text)}
.trash-icon{width:28px;height:28px;border-radius:var(--rsm);background:var(--surface3);display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0}
.trash-info{flex:1;min-width:0}
.trash-title{font-size:13px;color:var(--text);font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.trash-meta{font-size:11px;color:var(--text3);font-family:var(--mono)}
.trash-actions{display:flex;gap:4px}
.trash-btn{width:28px;height:28px;border-radius:var(--rxs);display:flex;align-items:center;justify-content:center;font-size:12px;transition:all .15s}
.trash-btn.restore{color:var(--green);background:var(--surface3)}
.trash-btn.restore:hover{background:var(--green);color:#fff}
.trash-btn.delete{color:var(--red);background:var(--surface3)}
.trash-btn.delete:hover{background:var(--red);color:#fff}
.trash-empty{font-size:13px;color:var(--text3);padding:20px 8px;text-align:center}
.trash-badge{font-size:10px;color:var(--red);background:var(--surface3);padding:1px 5px;border-radius:8px;font-family:var(--mono);margin-left:4px}
.left-view-switch{min-width:100px;padding:8px 12px;font-size:12px;display:flex;align-items:center;justify-content:center;white-space:nowrap;flex-shrink:0;border-radius:var(--rsm);background:var(--surface2);color:var(--text2)}
.left-view-switch:hover{background:var(--surface3);color:var(--text)}
/* ══ CENTER ══ */
#center{flex:1;display:flex;flex-direction:column;overflow:hidden;min-width:0;background:transparent;position:relative}
#topbar{display:flex;align-items:center;justify-content:center;gap:10px;padding:12px 22px;background:transparent;border-bottom:1px solid transparent;flex-shrink:0;position:relative;z-index:60}
.topbar-view-switch{margin-left:auto}
.search-wrap{display:flex;align-items:center;gap:8px;background:var(--surface2);border:1px solid var(--border2);border-radius:20px;padding:8px 15px;width:420px;position:absolute;left:50%;transform:translateX(-50%);transition:border-color .2s,box-shadow .2s}
.search-wrap:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.search-wrap input{flex:1;font-size:14px}
.search-wrap input::placeholder{color:var(--text3)}
.search-mode{border:1px solid var(--border2);background:var(--surface);color:var(--text2);border-radius:8px;padding:3px 6px;font-size:12px;outline:none;max-width:84px}
.search-go{display:none;width:26px;height:26px;border-radius:50%;border:1px solid var(--border2);background:var(--surface);color:var(--text2);align-items:center;justify-content:center;font-size:12px;line-height:1;cursor:pointer;transition:all .15s}
.search-go:hover{border-color:color-mix(in srgb,var(--accent) 40%,var(--border2));color:var(--accent);background:var(--accent-soft)}
/* 全局搜索浮层 */
.global-search-dropdown{position:absolute;top:100%;left:0;right:0;margin-top:6px;background:var(--surface);border:1px solid var(--border2);border-radius:12px;box-shadow:0 8px 32px rgba(0,0,0,.18);z-index:200;max-height:420px;overflow-y:auto;overscroll-behavior:contain;animation:gsDropIn .15s ease}
@keyframes gsDropIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}
.gs-section{padding:6px 0}
.gs-section-title{font-size:11px;font-weight:600;color:var(--text3);padding:4px 14px;text-transform:uppercase;letter-spacing:.5px;display:flex;align-items:center;gap:4px}
.gs-section-title .gs-count{font-weight:400;opacity:.7}
.gs-item{display:flex;align-items:center;gap:10px;padding:8px 14px;cursor:pointer;transition:background .12s;border-radius:6px;margin:0 6px}
.gs-item:hover{background:var(--surface3)}
.gs-item-icon{flex-shrink:0;font-size:14px;width:22px;text-align:center}
.gs-item-body{flex:1;min-width:0}
.gs-item-title{font-size:13px;font-weight:500;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.gs-item-preview{font-size:12px;color:var(--text3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:1px}
.gs-empty{padding:20px 14px;text-align:center;color:var(--text3);font-size:13px}
.gs-more{font-size:12px;color:var(--accent);padding:6px 14px;cursor:pointer}
.gs-more:hover{text-decoration:underline}
.kbd{font-size:11px;color:var(--text3);font-family:var(--mono);background:var(--surface3);padding:2px 7px;border-radius:4px}
.topbar-actions{margin-right:auto;display:flex;gap:7px;align-items:center}
#topbar .topbar-view-switch{padding:6px 14px;font-size:13px;min-width:88px;display:flex;align-items:center;justify-content:center;background:var(--surface2);color:var(--text2);border-radius:var(--rsm);transition:all .15s}
#topbar .topbar-view-switch:hover{background:var(--surface3);color:var(--text)}
#topbar .topbar-view-switch.active{background:var(--surface);color:var(--accent);font-weight:600;box-shadow:var(--sh)}
.filter-badge{font-size:13px;color:var(--accent);background:var(--accent-soft);padding:3px 12px;border-radius:10px;cursor:pointer}
.filter-badge:hover{background:var(--accent);color:#fff}
#bookmark-page{display:none;flex:1;overflow-y:auto;padding:16px 22px 80px;background:var(--bg);scrollbar-width:auto;scrollbar-color:color-mix(in srgb,var(--accent) 40%,var(--border)) color-mix(in srgb,var(--surface2) 70%,transparent)}

#bookmark-page::-webkit-scrollbar{width:9px}
#bookmark-page::-webkit-scrollbar-track{background:color-mix(in srgb,var(--surface2) 65%,transparent);border-radius:8px}
#bookmark-page::-webkit-scrollbar-thumb{background:color-mix(in srgb,var(--accent) 38%,var(--border));border-radius:8px;border:2px solid transparent;background-clip:padding-box}
#bookmark-page::-webkit-scrollbar-thumb:hover{background:color-mix(in srgb,var(--accent) 55%,var(--border))}
.bm-toolbar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:12px}
.bm-stat{font-size:12px;color:var(--text3);font-family:var(--mono);margin-right:auto}
.bm-tabs{display:flex;gap:4px;margin-bottom:16px;overflow-x:auto;scrollbar-width:thin;scrollbar-color:var(--border) transparent}
.bm-tabs::-webkit-scrollbar{height:4px}
.bm-tabs::-webkit-scrollbar-track{background:transparent}
.bm-tabs::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px}
.bm-tab{padding:8px 16px;border-radius:10px;background:var(--surface2);color:var(--text2);font-size:13px;white-space:nowrap;cursor:pointer;transition:all .1s ease}
.bm-tab:hover{background:var(--accent-soft);color:var(--accent)}
.bm-tab.active{background:var(--accent);color:#fff}
.bm-sections{display:flex;flex-direction:column;gap:14px}
.bm-sec{display:none;background:transparent;border-radius:12px;padding:12px}
.bm-sec.active{display:block}
.bm-sec-title{font-size:15px;color:var(--text2);font-weight:600;margin-bottom:10px;display:flex;align-items:center;gap:6px}
.bm-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:10px}
.bm-link{display:flex;align-items:center;gap:8px;padding:8px 10px;border-radius:10px;text-decoration:none;transition:all .15s}
.bm-link:hover{transform:translateY(-2px);box-shadow:none}
.bm-link-icon{width:20px;height:20px;border-radius:3px;flex-shrink:0}
.bm-link-content{flex:1;min-width:0;display:flex;align-items:center;gap:6px}
.bm-search-results .bm-link-content{flex-direction:column;align-items:flex-start;gap:1px}
.bm-link-title{font-size:16px;color:var(--text);font-weight:400;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;width:100%;max-width:100%}
.bm-link-cat{font-size:11px;color:var(--text3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex-shrink:0}
.bm-search-hint{font-size:13px;color:var(--text3);padding:4px 0 10px;text-align:center}
.bm-search-results .bm-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}
.bm-empty{padding:24px 12px;text-align:center;color:var(--text3);font-size:13px}
.bm-editor-modal{display:flex;flex-direction:column}
.bm-editor-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.bm-editor-hdr-btns{display:flex;gap:8px;align-items:center}
.bm-editor-hint{font-size:12px;color:var(--text3);margin:-4px 0 10px}
#bm-editor-text{width:100%;height:72vh;min-height:520px;resize:vertical;border:1px solid var(--border2);border-radius:10px;background:var(--surface2);color:var(--text);padding:12px 14px;font-size:13px;line-height:1.7;font-family:var(--mono)}
#bm-editor-text:focus{border-color:var(--accent);outline:none}
#bm-editor-text{scrollbar-width:auto;scrollbar-color:color-mix(in srgb,var(--accent) 50%,var(--border)) color-mix(in srgb,var(--surface3) 85%,transparent)}
#bm-editor-text::-webkit-scrollbar{width:12px}
#bm-editor-text::-webkit-scrollbar-track{background:color-mix(in srgb,var(--surface3) 78%,transparent);border-radius:10px}
#bm-editor-text::-webkit-scrollbar-thumb{background:color-mix(in srgb,var(--accent) 46%,var(--border));border-radius:10px;border:2px solid transparent;background-clip:padding-box}
#bm-editor-text::-webkit-scrollbar-thumb:hover{background:color-mix(in srgb,var(--accent) 62%,var(--border))}
/* Article Layout */
.article-page-layout {
  height: 100%;
  background: transparent;
  overflow: hidden;
}
/* 桌面端隐藏移动端关闭按钮 */
#mobile-close-btn{
  display:none;
}
@media (max-width:900px){
  .bm-editor-modal{width:min(99vw,760px);max-height:94vh}
  #bm-editor-text{height:66vh;min-height:360px}
  #app{flex-direction:row}
  #left{
    position:fixed;
    left:0;
    top:0;
    height:100%;
    z-index:200;
    transform:translateX(-100%);
    transition:transform .25s ease;
    overflow:visible;
  }
  #left.show{transform:translateX(0)}
  #center{flex:1;min-width:0;width:100%;padding-top:104px}
  #topbar{
    display:flex !important;
    position:fixed;
    top:0;
    left:0;
    right:0;
    padding:10px 12px;
    gap:8px;
    flex-wrap:wrap;
    background:var(--surface);
    border-bottom:1px solid var(--border);
    z-index:100;
  }
  #topbar .topbar-view-switch{
    display:flex !important;
    flex-shrink:0;
    font-size:12px;
    padding:6px 10px;
    min-width:auto;
  }
  #topbar .search-wrap{
    position:relative !important;
    left:auto !important;
    transform:none !important;
    width:100%;
    min-width:100%;
    flex:1 1 100%;
    padding:6px 10px;
    border-radius:16px;
    order:10;
    margin-top:4px;
  }
  #topbar .search-wrap input{
    font-size:13px;
    min-width:0;
  }
  #topbar .search-mode{
    max-width:60px;
    font-size:11px;
    padding:2px 4px;
  }
  #topbar .search-go{
    display:flex !important;
    flex-shrink:0;
    width:24px;
    height:24px;
    font-size:11px;
  }
  .global-search-dropdown{
    left:8px!important;
    right:8px!important;
    width:auto!important;
    max-height:60vh;
  }
  #topbar .topbar-actions{
    flex-shrink:0;
    gap:4px;
  }
  #topbar .topbar-actions .btn{
    padding:6px 8px;
    font-size:12px;
  }
  #topbar .filter-badge{
    font-size:11px;
    padding:3px 6px;
  }
  .mobile-menu-btn{
    display:flex !important;
    position:relative;
    z-index:205;
  }
  #mobile-close-btn{
    display:block;
    width:100%;
    padding:10px 8px;
    border-radius:var(--rsm);
    text-align:center;
    font-size:13px;
    color:var(--text2);
    background:transparent;
    border:none;
    cursor:pointer;
    transition:all .15s;
    font-family:var(--font);
    margin-bottom:2px;
  }
  #mobile-close-btn:hover{
    background:var(--surface2);
    color:var(--text);
  }
  /* Mobile Article Layout */
  .article-page-layout {
    position: relative;
  }
  .art-sidebar-layout {
    width: 100%;
    position: absolute;
    inset: 0;
    z-index: 10;
    transition: transform 0.25s ease;
    border-right: none;
  }
  .art-editor-layout {
    width: 100%;
    position: absolute;
    inset: 0;
    z-index: 20;
    transform: translateX(100%);
    transition: transform 0.25s ease;
    padding: 10px;
  }
  #art-title {
    font-size: 16px !important;
  }
}
/* Article List Styles */
#art-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 12px;
  padding: 16px 22px;
}
.art-card {
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 8px;
  padding: 12px 14px;
  cursor: pointer;
  transition: all .15s;
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: rgba(255, 255, 255, 0.55);
}
.art-card:hover {
  background: rgba(255, 255, 255, 0.85);
  border-color: rgba(0, 0, 0, 0.12);
}
.art-card.active {
  border-color: var(--accent);
  background: var(--accent-soft) !important;
}
.art-card-header {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.art-card-lock {
  font-size: 12px;
  opacity: 0.6;
  flex-shrink: 0;
  margin-top: 2px;
}
.art-card-title {
  flex: 1;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  line-height: 1.4;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
.art-card.active .art-card-title {
  color: var(--accent);
  font-weight: 600;
}
.art-card-preview {
  font-size: 13px;
  color: var(--text2);
  line-height: 1.5;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  margin-top: -2px;
}
.art-card-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: auto;
  padding-top: 8px;
  border-top: 1px solid var(--border2);
}
.art-card-time {
  font-size: 11px;
  color: var(--text3);
  font-family: var(--mono);
  flex-shrink: 0;
}
.art-empty {
  padding: 80px 20px;
  text-align: center;
  color: var(--text3);
  font-size: 14px;
}
.art-empty-icon {
  font-size: 48px;
  margin-bottom: 12px;
  opacity: 0.3;
}
#art-search-inp:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .art-list {
    grid-template-columns: 1fr;
    padding: 12px 16px;
  }
  .art-card {
    padding: 14px;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .art-list {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  }
}
/* ══ THEME PICKER MODAL ══ */
.theme-grid{display:flex;gap:8px;margin-top:8px;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}.theme-grid::-webkit-scrollbar{display:none}
.theme-swatch{
  width:40px;height:40px;border-radius:50%;cursor:pointer;border:2px solid transparent;
  transition:transform .15s,border-color .15s;position:relative;
}
.setting-switch{display:flex;align-items:center;justify-content:space-between;gap:10px;background:var(--surface2);border:1px solid var(--border2);border-radius:10px;padding:10px 12px;margin-top:8px}
.setting-switch .text{font-size:13px;color:var(--text2)}
.setting-switch input[type="checkbox"]{width:18px;height:18px;accent-color:var(--accent);cursor:pointer}
.theme-swatch:hover{transform:scale(1.04)}
.theme-swatch.active{border-color:var(--accent)}
/* ══ MODALS ══ */
.overlay{position:fixed;inset:0;background:rgba(0,0,0,.32);display:flex;align-items:center;justify-content:center;z-index:200;opacity:0;pointer-events:none;transition:opacity .2s}
.overlay.open{opacity:1;pointer-events:all}
.modal{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:24px;width:440px;max-width:94vw;box-shadow:0 20px 60px rgba(0,0,0,.22);transform:translateY(10px);transition:transform .2s}
.modal.bm-editor-modal{width:min(1680px,calc(100vw - 32px));max-width:calc(100vw - 32px);max-height:96vh}
.overlay.open .modal{transform:translateY(0)}
.modal-title{font-size:16px;font-weight:600;margin-bottom:16px}
.form-row{margin-bottom:14px}
.form-lbl{font-size:13px;font-weight:500;color:var(--text2);margin-bottom:6px;display:block}
.form-inp{width:100%;padding:10px 13px;border:1px solid var(--border);border-radius:var(--rsm);font-size:14px;background:var(--surface2);color:var(--text);transition:border-color .2s}
.form-inp:focus{border-color:var(--accent);outline:none}
.form-inp::placeholder{color:var(--text3)}
.modal-btns{display:flex;gap:8px;justify-content:flex-end;margin-top:20px}
.btn{padding:9px 17px;border-radius:var(--rsm);font-size:14px;font-weight:500;transition:all .15s;cursor:pointer;border:none}
.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}
.btn-ghost{background:transparent;color:var(--text)}.btn-ghost:hover{background:var(--border)}
.btn-danger{background:#fff1f0;color:var(--red)}.btn-danger:hover{background:var(--red);color:#fff}
.btn-sm{padding:6px 12px;font-size:13px}
/* ══ LOGIN ══ */
#login-screen{position:fixed;inset:0;background:var(--bg);display:flex;align-items:center;justify-content:center;z-index:1000}
.login-card{background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:44px 40px;width:380px;box-shadow:var(--shm);text-align:center}
.login-logo{font-family:var(--serif);font-size:30px;font-weight:700;margin-bottom:6px}
.login-sub{font-size:15px;color:var(--text3);margin-bottom:28px}
.login-inp{width:100%;padding:14px 16px;border:1.5px solid var(--border);border-radius:12px;font-size:16px;background:var(--surface2);color:var(--text);transition:border-color .2s,box-shadow .2s;text-align:center;letter-spacing:2px}
.login-inp:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);outline:none}
.login-inp::placeholder{letter-spacing:0;color:var(--text3)}
.login-btn{width:100%;padding:14px;background:var(--accent);color:#fff;border-radius:12px;font-size:16px;font-weight:600;margin-top:16px;transition:background .15s}
.login-btn:hover{background:var(--accent-hover)}
.login-err{font-size:13px;color:var(--red);min-height:20px;margin-top:8px}
/* ══ TOAST ══ */
#toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(60px);background:var(--text);color:var(--bg);padding:10px 22px;border-radius:20px;font-size:14px;z-index:500;pointer-events:none;transition:transform .22s ease;white-space:nowrap;display:none}
#toast.show{display:block;transform:translateX(-50%) translateY(0)}
/* ══ EMBED VIEW ══ */
#embed-view{
  position:absolute;top:56px;left:0;right:0;bottom:0;z-index:55;
  background:var(--bg);display:none;flex-direction:column;
}
#embed-header{
  display:flex;align-items:center;gap:12px;
  padding:10px 22px;background:var(--surface);
  border-bottom:1px solid var(--border);flex-shrink:0;
}
.embed-back-btn{
  padding:6px 14px;border-radius:var(--rsm);
  background:var(--accent-soft);color:var(--accent);
  font-size:13px;font-weight:500;cursor:pointer;
  transition:all .15s;border:none;font-family:var(--font);
}
.embed-back-btn:hover{background:var(--accent);color:#fff}
#embed-title-text{
  font-size:14px;font-weight:600;color:var(--text);
}
#embed-iframe{
  flex:1;width:100%;border:none;background:var(--surface);
}
.settings-tab.active{
  background:var(--accent);
  color:#fff;
}