:root{
  --coral:#F48591;
  --peach:#FA8D85;
  --salmon:#FEA283;
  --orange:#FFB872;
  --sage:#8DA599;
  --periwinkle:#8D96C1;
  --mauve:#C18EA9;

  --bg:#FFFFFF;
  --cream:#FBF7F1;
  --sidebar-bg:#F6F1EA;
  --ink:#2B2A28;
  --ink-soft:#6b675f;
  --line:#E9E2D6;
  --shadow:0 8px 24px rgba(43,42,40,.10);
  --shadow-sm:0 2px 8px rgba(43,42,40,.08);
  --radius:16px;
  --sidebar-w:64px;
  --ease:cubic-bezier(.2,.8,.2,1);
}

*{box-sizing:border-box;}
html,body{
  height:100dvh;
  margin:0;
  padding:0;
  overflow:hidden;
  overscroll-behavior:none;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}

button{font-family:inherit;cursor:pointer;background:none;border:none;color:inherit;}
input{font-family:inherit;}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
}

/* ---------- shell ---------- */
.app-shell{
  display:grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  height:100dvh;
  width:100vw;
  overflow:hidden;
}

/* ---------- sidebar ---------- */
.sidebar{
  background:var(--sidebar-bg);
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  align-items:center;
  padding:12px 0 max(12px, env(safe-area-inset-bottom)) 0;
  gap:10px;
}

.icon-btn{
  width:36px;height:36px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  color:var(--ink-soft);
  transition:background .18s var(--ease), transform .12s var(--ease), color .18s var(--ease);
}
.icon-btn svg{width:19px;height:19px;}
.icon-btn:hover{background:rgba(0,0,0,.06);color:var(--ink);}
.icon-btn:active{transform:scale(.9);}

.home-btn{margin-bottom:2px;}

.sidebar-spaces{
  display:flex;flex-direction:column;gap:8px;
  width:100%;align-items:center;
  overflow-y:auto;
  scrollbar-width:none;
}
.sidebar-spaces::-webkit-scrollbar{display:none;}

.space-circle{
  position:relative;
  width:38px;height:38px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:600;color:#fff;
  transition:transform .16s var(--ease), box-shadow .16s var(--ease);
  flex:none;
}
.space-circle:hover{transform:scale(1.07);}
.space-circle:active{transform:scale(.94);}
.space-circle.active{box-shadow:0 0 0 2px var(--sidebar-bg), 0 0 0 4px currentColor;}
.space-circle .edit-dot{
  position:absolute;bottom:-2px;right:-2px;
  width:14px;height:14px;border-radius:50%;
  background:var(--sidebar-bg);
  display:flex;align-items:center;justify-content:center;
  opacity:0;transition:opacity .15s var(--ease);
  color:var(--ink-soft);
}
.space-circle:hover .edit-dot{opacity:1;}
.space-circle .edit-dot svg{width:9px;height:9px;}

.sidebar-spacer{flex:1;min-height:8px;}

.sidebar-apps{
  display:flex;flex-direction:column;gap:8px;
  width:100%;align-items:center;
  max-height:40%;
  overflow-y:auto;
  scrollbar-width:none;
}
.sidebar-apps::-webkit-scrollbar{display:none;}

.pinned-app{
  width:32px;height:32px;border-radius:9px;
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;color:#fff;
  transition:transform .16s var(--ease);
  flex:none;
}
.pinned-app:hover{transform:scale(1.08);}
.pinned-app:active{transform:scale(.92);}

.add-btn{margin-top:2px;}

/* ---------- main ---------- */
.main{
  display:flex;flex-direction:column;
  min-width:0;
  background:var(--bg);
}

.titlebar{
  display:flex;align-items:center;
  height:42px;
  padding:6px 8px 0 10px;
  gap:2px;
  background:var(--cream);
  border-bottom:1px solid var(--line);
}
.tabs{
  flex:1;display:flex;align-items:flex-end;gap:4px;
  overflow-x:auto;scrollbar-width:none;height:100%;
}
.tabs::-webkit-scrollbar{display:none;}

.tab{
  display:flex;align-items:center;gap:6px;
  max-width:190px;min-width:110px;
  height:32px;padding:0 10px;
  border-radius:10px 10px 0 0;
  background:transparent;
  color:var(--ink-soft);
  font-size:13px;
  white-space:nowrap;
  cursor:pointer;
  transition:background .15s var(--ease), color .15s var(--ease);
  flex:none;
  animation:tabIn .18s var(--ease);
}
@keyframes tabIn{from{opacity:0;transform:translateY(4px);}to{opacity:1;transform:translateY(0);}}
.tab:hover{background:rgba(0,0,0,.05);}
.tab.active{background:var(--bg);color:var(--ink);font-weight:600;}
.tab .tab-icon{width:14px;height:14px;border-radius:4px;flex:none;display:flex;align-items:center;justify-content:center;font-size:9px;font-weight:800;color:#fff;}
.tab .tab-title{overflow:hidden;text-overflow:ellipsis;flex:1;}
.tab .tab-close{
  width:16px;height:16px;border-radius:5px;
  display:flex;align-items:center;justify-content:center;
  opacity:.55;flex:none;
}
.tab .tab-close:hover{opacity:1;background:rgba(0,0,0,.1);}
.tab .tab-close svg{width:10px;height:10px;}

.new-tab-btn{
  width:28px;height:28px;border-radius:9px;
  display:flex;align-items:center;justify-content:center;
  color:var(--ink-soft);flex:none;margin-bottom:3px;
  transition:background .15s var(--ease);
}
.new-tab-btn svg{width:15px;height:15px;}
.new-tab-btn:hover{background:rgba(0,0,0,.06);}

/* ---------- addressbar ---------- */
.addressbar{
  display:flex;align-items:center;gap:2px;
  padding:8px 10px;
  background:var(--bg);
  border-bottom:1px solid var(--line);
}
.nav-btn{
  width:30px;height:30px;border-radius:9px;
  display:flex;align-items:center;justify-content:center;
  color:var(--ink-soft);flex:none;
  transition:background .15s var(--ease), color .15s var(--ease);
}
.nav-btn svg{width:16px;height:16px;}
.nav-btn:hover{background:rgba(0,0,0,.06);color:var(--ink);}
.nav-btn:disabled{opacity:.35;pointer-events:none;}

.url-wrap{
  flex:1;display:flex;align-items:center;gap:6px;
  background:var(--cream);
  border-radius:10px;
  padding:0 6px 0 10px;
  height:34px;
  margin:0 6px;
  transition:box-shadow .15s var(--ease);
}
.url-wrap:focus-within{box-shadow:0 0 0 2px var(--periwinkle);}
.star-btn{width:22px;height:22px;flex:none;color:var(--ink-soft);display:flex;align-items:center;justify-content:center;}
.star-btn svg{width:15px;height:15px;}
.star-btn.starred{color:var(--orange);}
.url-input{
  flex:1;border:none;background:transparent;outline:none;
  font-size:13.5px;color:var(--ink);height:100%;
}
.url-input::placeholder{color:#a39d90;}

/* ---------- bookmarks bar ---------- */
.bookmarks-bar{
  display:flex;align-items:center;gap:4px;
  padding:6px 10px;
  overflow-x:auto;scrollbar-width:none;
  border-bottom:1px solid var(--line);
  background:var(--bg);
  min-height:34px;
}
.bookmarks-bar::-webkit-scrollbar{display:none;}
.bm-folder{
  position:relative;
  display:flex;align-items:center;gap:5px;
  padding:5px 9px;border-radius:8px;
  font-size:12.5px;color:var(--ink-soft);
  white-space:nowrap;flex:none;
  transition:background .15s var(--ease);
}
.bm-folder:hover{background:var(--cream);color:var(--ink);}
.bm-folder svg{width:13px;height:13px;flex:none;}
.bm-add{
  font-size:16px;color:var(--ink-soft);
  width:26px;height:26px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;flex:none;
}
.bm-add:hover{background:var(--cream);}

.bm-dropdown{
  position:absolute;top:calc(100% + 6px);left:0;
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:12px;
  box-shadow:var(--shadow);
  min-width:200px;max-width:280px;
  padding:6px;
  z-index:40;
  animation:popIn .14s var(--ease);
}
@keyframes popIn{from{opacity:0;transform:translateY(-4px) scale(.98);}to{opacity:1;transform:translateY(0) scale(1);}}
.bm-link{
  display:flex;align-items:center;gap:8px;
  padding:8px 10px;border-radius:8px;font-size:13px;
  color:var(--ink);
}
.bm-link:hover{background:var(--cream);}
.bm-link-remove{margin-left:auto;opacity:0;color:var(--ink-soft);}
.bm-link:hover .bm-link-remove{opacity:.6;}
.bm-link-remove:hover{opacity:1 !important;}
.bm-empty{padding:10px;font-size:12.5px;color:var(--ink-soft);}
.bm-add-link{
  display:block;width:100%;text-align:left;
  padding:8px 10px;border-radius:8px;font-size:13px;
  color:var(--periwinkle);font-weight:600;
}
.bm-add-link:hover{background:var(--cream);}

/* ---------- content ---------- */
.content-area{
  flex:1;position:relative;
  background:var(--bg);
  overflow:hidden;
}
.content-frame{
  width:100%;height:100%;border:none;display:block;
  background:#fff;
  animation:fadeIn .2s var(--ease);
}
@keyframes fadeIn{from{opacity:0;}to{opacity:1;}}

.open-external{
  position:absolute;top:12px;right:16px;
  display:flex;align-items:center;gap:6px;
  padding:7px 12px;border-radius:999px;
  background:rgba(43,42,40,.82);color:#fff;
  font-size:12px;font-weight:600;
  box-shadow:var(--shadow-sm);
  z-index:5;
  transition:transform .15s var(--ease), background .15s var(--ease);
}
.open-external:hover{background:#000;transform:translateY(-1px);}
.open-external svg{width:12px;height:12px;}

.new-tab-page{
  height:100%;width:100%;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:24px;
  overflow-y:auto;
  animation:fadeUp .3s var(--ease);
}
@keyframes fadeUp{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:translateY(0);}}
.ntp-greeting{font-size:26px;font-weight:700;margin-bottom:22px;color:var(--ink);text-align:center;}
.ntp-search{
  width:min(560px,88vw);
  display:flex;align-items:center;gap:10px;
  background:var(--cream);
  border-radius:999px;
  padding:14px 20px;
  box-shadow:var(--shadow-sm);
  margin-bottom:36px;
  transition:box-shadow .15s var(--ease);
}
.ntp-search:focus-within{box-shadow:0 0 0 2px var(--periwinkle);}
.ntp-search svg{width:18px;height:18px;color:var(--ink-soft);flex:none;}
.ntp-search input{flex:1;border:none;background:transparent;outline:none;font-size:15px;color:var(--ink);}

.ntp-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(64px,64px));
  gap:18px;
  justify-content:center;
  width:min(640px,92vw);
}
.ntp-tile{
  display:flex;flex-direction:column;align-items:center;gap:6px;
  transition:transform .15s var(--ease);
}
.ntp-tile:hover{transform:translateY(-2px);}
.ntp-tile-icon{
  width:52px;height:52px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:700;color:#fff;
  box-shadow:var(--shadow-sm);
}
.ntp-tile-icon.ghost{background:var(--cream);color:var(--ink-soft);border:1.5px dashed var(--line);box-shadow:none;}
.ntp-tile-label{font-size:11.5px;color:var(--ink-soft);max-width:70px;text-align:center;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- overlays ---------- */
.overlay{
  position:fixed;inset:0;
  background:rgba(43,42,40,.4);
  backdrop-filter:blur(3px);
  display:flex;align-items:center;justify-content:center;
  z-index:100;
  animation:fadeIn .15s var(--ease);
  padding:20px;
}
.overlay.hidden{display:none;}

.catalog{
  width:min(880px,94vw);height:min(620px,86vh);
  background:var(--bg);
  border-radius:20px;
  box-shadow:var(--shadow);
  display:flex;flex-direction:column;
  overflow:hidden;
  animation:scaleIn .18s var(--ease);
}
@keyframes scaleIn{from{opacity:0;transform:scale(.96) translateY(8px);}to{opacity:1;transform:scale(1) translateY(0);}}
.catalog-header{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 20px;border-bottom:1px solid var(--line);
}
.catalog-header h2{margin:0;font-size:17px;}
.catalog-body{flex:1;display:flex;min-height:0;}
.catalog-sidebar{
  width:200px;border-right:1px solid var(--line);
  padding:16px;display:flex;flex-direction:column;gap:14px;
  overflow-y:auto;
}
.catalog-search{
  border:1px solid var(--line);border-radius:10px;
  padding:9px 12px;font-size:13px;outline:none;background:var(--cream);
}
.catalog-search:focus{box-shadow:0 0 0 2px var(--periwinkle);}
.catalog-categories{display:flex;flex-direction:column;gap:2px;}
.catalog-cat{
  text-align:left;padding:8px 10px;border-radius:8px;
  font-size:13px;color:var(--ink-soft);
}
.catalog-cat:hover{background:var(--cream);}
.catalog-cat.active{background:var(--periwinkle);color:#fff;font-weight:600;}
.custom-app-btn{
  margin-top:auto;
  padding:10px 12px;border-radius:10px;
  background:var(--cream);color:var(--ink);
  font-size:12.5px;font-weight:600;text-align:center;
  border:1px dashed var(--line);
  transition:background .15s var(--ease);
}
.custom-app-btn:hover{background:var(--line);}

.catalog-grid{
  flex:1;overflow-y:auto;
  padding:18px;
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(84px,1fr));
  gap:14px;
  align-content:start;
}
.catalog-app{
  display:flex;flex-direction:column;align-items:center;gap:6px;
  padding:8px 4px;border-radius:12px;
  transition:background .15s var(--ease), transform .12s var(--ease);
}
.catalog-app:hover{background:var(--cream);transform:translateY(-1px);}
.catalog-app-icon{
  width:44px;height:44px;border-radius:13px;
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;color:#fff;
}
.catalog-app-name{font-size:11px;color:var(--ink-soft);text-align:center;max-width:78px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- space edit / modal ---------- */
.space-edit,.modal-box{
  width:min(360px,92vw);
  background:var(--bg);
  border-radius:20px;
  box-shadow:var(--shadow);
  padding:0 0 20px;
  animation:scaleIn .18s var(--ease);
}
.modal-box{padding:22px;}
.field-label{display:block;font-size:12px;font-weight:600;color:var(--ink-soft);margin:16px 20px 8px;}
.text-input,.url-input-modal{
  display:block;width:calc(100% - 40px);margin:0 20px;
  border:1px solid var(--line);border-radius:10px;
  padding:10px 12px;font-size:14px;outline:none;
}
.text-input:focus,.url-input-modal:focus{box-shadow:0 0 0 2px var(--periwinkle);border-color:var(--periwinkle);}
.color-swatches{display:flex;gap:10px;padding:0 20px;flex-wrap:wrap;}
.swatch{
  width:30px;height:30px;border-radius:50%;
  transition:transform .15s var(--ease);
  position:relative;
}
.swatch:hover{transform:scale(1.1);}
.swatch.selected::after{
  content:"";position:absolute;inset:-4px;border-radius:50%;
  border:2px solid var(--ink);
}
.space-edit-actions{
  display:flex;justify-content:space-between;align-items:center;
  padding:20px 20px 0;
}
.solid-btn{
  background:var(--periwinkle);color:#fff;font-weight:600;font-size:13.5px;
  padding:10px 18px;border-radius:10px;
  transition:transform .12s var(--ease), background .15s var(--ease);
}
.solid-btn:hover{filter:brightness(1.05);}
.solid-btn:active{transform:scale(.96);}
.ghost-btn{
  font-size:13px;font-weight:600;padding:10px 14px;border-radius:10px;color:var(--ink-soft);
}
.ghost-btn:hover{background:var(--cream);}
.ghost-btn.danger{color:#c0554f;}
.ghost-btn.danger:hover{background:#fbeceb;}

.modal-box h3{margin:0 0 14px;font-size:16px;}
.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:18px;}

/* ---------- responsive (mobile) ---------- */
@media (max-width:760px){
  .app-shell{grid-template-columns:1fr;grid-template-rows:1fr auto;}
  .sidebar{
    order:2;
    flex-direction:row;width:100%;height:64px;
    padding:6px 10px max(6px, env(safe-area-inset-bottom)) 10px;
    border-right:none;border-top:1px solid var(--line);
    overflow-x:auto;
  }
  .sidebar-spaces{flex-direction:row;overflow-x:auto;overflow-y:hidden;width:auto;}
  .sidebar-spacer{display:none;}
  .sidebar-apps{flex-direction:row;width:auto;max-height:none;overflow-x:auto;overflow-y:hidden;}
  .main{order:1;min-height:0;}
  .catalog-body{flex-direction:column;}
  .catalog-sidebar{width:100%;border-right:none;border-bottom:1px solid var(--line);flex-direction:row;flex-wrap:wrap;align-items:center;}
  .catalog-categories{flex-direction:row;flex-wrap:wrap;}
  .custom-app-btn{margin-top:0;}
}