/* === APP SHELL === */
#app{display:flex;flex-direction:column;height:100vh;overflow:hidden}

/* === HEADER === */
.app-header{height:54px;background:var(--surface);border-bottom:1px solid var(--border);display:flex;align-items:center;gap:16px;padding:0 20px;flex-shrink:0;position:relative;z-index:100}
.logo{font-family:var(--font-display);font-size:18px;font-weight:800;letter-spacing:-.5px;color:var(--text);display:flex;align-items:center;gap:8px;cursor:pointer;white-space:nowrap}
.logo-dot{width:8px;height:8px;background:var(--accent);border-radius:50%;animation:pulse 2.5s infinite;flex-shrink:0}

.main-nav{display:flex;align-items:center;gap:2px;flex:1}
.nav-link{padding:6px 11px;border-radius:5px;font-size:10px;font-family:var(--font-mono);color:var(--muted);cursor:pointer;transition:all .15s;letter-spacing:.3px;white-space:nowrap;text-transform:uppercase}
.nav-link:hover{color:var(--text);background:var(--surface2)}
.nav-link.active{color:var(--accent);background:rgba(0,229,160,.1);font-weight:700}

.header-right{display:flex;align-items:center;gap:10px;flex-shrink:0}
.exchange-selector select{background:var(--bg);border:1px solid var(--border2);border-radius:var(--radius);padding:5px 10px;font-size:11px;color:var(--text);outline:none;cursor:pointer}
.sync-status{display:flex;align-items:center;gap:6px;font-size:10px;color:var(--muted);white-space:nowrap}
.status-dot{width:6px;height:6px;border-radius:50%;background:var(--muted2);flex-shrink:0}
.status-dot.ok{background:var(--green);box-shadow:0 0 6px var(--green)}
.status-dot.err{background:var(--red);box-shadow:0 0 6px var(--red)}
.status-dot.loading{background:var(--yellow);animation:pulse 1s infinite}

/* === PAGE CONTAINER === */
.page-container{flex:1;overflow:hidden;display:flex;flex-direction:column}

/* === TWO-COLUMN LAYOUT === */
.two-col{display:grid;grid-template-columns:260px 1fr;height:100%;overflow:hidden}
.three-col{display:grid;grid-template-columns:240px 1fr 260px;height:100%;overflow:hidden}

/* === SIDEBAR === */
.sidebar{background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden}
.sidebar-hdr{padding:14px 16px;border-bottom:1px solid var(--border);display:flex;flex-direction:column;gap:9px;flex-shrink:0}
.sidebar-title{font-family:var(--font-display);font-size:10px;font-weight:700;color:var(--muted);letter-spacing:1.5px;text-transform:uppercase}
.sidebar-body{flex:1;overflow-y:auto}

/* === STOCK LIST ITEM === */
.stock-item{padding:10px 16px;border-bottom:1px solid var(--border);cursor:pointer;transition:background .12s;display:flex;align-items:center;gap:10px;position:relative}
.stock-item:hover{background:var(--surface2)}
.stock-item.active{background:var(--surface2);border-left:2px solid var(--accent)}
.si-info{flex:1;min-width:0}
.si-sym{font-family:var(--font-display);font-size:12px;font-weight:700;color:var(--text)}
.si-name{font-size:9px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:1px}
.si-right{text-align:right;flex-shrink:0}
.si-price{font-size:11px;font-weight:700}
.si-chg{font-size:9px;margin-top:1px}

/* === CONTENT PANE === */
.content-pane{flex:1;display:flex;flex-direction:column;overflow:hidden}
.pane-header{padding:18px 22px 14px;border-bottom:1px solid var(--border);background:var(--surface);flex-shrink:0;display:flex;align-items:flex-start;justify-content:space-between;gap:16px}
.pane-body{flex:1;overflow:auto;padding:20px 22px}
.pane-body-np{flex:1;overflow:auto}

/* === RIGHT PANEL === */
.right-panel{border-left:1px solid var(--border);background:var(--surface);overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:14px}

/* === PAGE HEADER === */
.page-hdr{padding:18px 22px 14px;border-bottom:1px solid var(--border);background:var(--surface);flex-shrink:0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.page-title{font-family:var(--font-display);font-size:20px;font-weight:800;letter-spacing:-.5px}
.page-subtitle{font-size:11px;color:var(--muted);margin-top:2px}

/* === DETAIL HEADER === */
.detail-hdr{background:var(--surface);border-bottom:1px solid var(--border);padding:18px 22px;display:grid;grid-template-columns:1fr auto;gap:24px;align-items:start;flex-shrink:0}
.detail-sym{font-family:var(--font-display);font-size:24px;font-weight:800;letter-spacing:-1px}
.detail-meta{display:flex;align-items:center;gap:8px;margin-top:5px;flex-wrap:wrap}
.meta-tag{font-size:9px;padding:2px 8px;border-radius:3px;background:var(--bg);border:1px solid var(--border2);color:var(--muted);letter-spacing:.5px;text-transform:uppercase}
.detail-price{text-align:right}
.detail-price-main{font-family:var(--font-display);font-size:30px;font-weight:800;letter-spacing:-1.5px}
.detail-price-chg{font-size:12px;font-weight:700;margin-top:3px}

/* === GRID LAYOUTS === */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.market-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px}

/* === CHART TOOLS === */
.chart-tools{display:flex;align-items:center;gap:8px;margin-bottom:14px}
.chart-label{font-size:9px;color:var(--muted);text-transform:uppercase;letter-spacing:1.5px}
.period-btns{display:flex;gap:3px;margin-left:auto}
.period-btn{padding:4px 10px;border-radius:4px;font-family:var(--font-mono);font-size:9px;background:var(--bg);border:1px solid var(--border);color:var(--muted);cursor:pointer;transition:all .15s;font-weight:700;letter-spacing:.5px}
.period-btn.active,.period-btn:hover{background:var(--accent);color:#000;border-color:var(--accent)}

/* === INFO ROWS === */
.info-rows{display:flex;flex-direction:column;gap:0}
.info-row{display:flex;justify-content:space-between;align-items:center;padding:7px 0;border-bottom:1px solid var(--border);font-size:10px}
.info-row:last-child{border-bottom:none}
.info-key{color:var(--muted)}
.info-val{font-weight:700;text-align:right;color:var(--text)}

/* === WORKSPACE TABS === */
.workspace-bar{display:flex;align-items:center;gap:8px;padding:10px 20px;border-bottom:1px solid var(--border);background:var(--surface);overflow-x:auto;flex-shrink:0}
.ws-tab{padding:5px 14px;border-radius:5px;font-size:10px;font-family:var(--font-mono);color:var(--muted);cursor:pointer;transition:all .15s;white-space:nowrap;border:1px solid transparent}
.ws-tab:hover{background:var(--surface2);color:var(--text)}
.ws-tab.active{background:rgba(0,229,160,.1);color:var(--accent);border-color:rgba(0,229,160,.2);font-weight:700}
.ws-add{padding:4px 10px;font-size:16px;color:var(--muted);cursor:pointer;border-radius:4px;transition:all .15s}
.ws-add:hover{color:var(--accent);background:var(--surface2)}

/* === EXCHANGE BANNER === */
.exchange-banner{background:linear-gradient(135deg,var(--surface) 0%,var(--surface2) 100%);border:1px solid var(--border2);border-radius:var(--radius2);padding:18px 22px;margin-bottom:18px;display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.banner-flag{font-size:32px}
.banner-info{flex:1}
.banner-name{font-family:var(--font-display);font-size:20px;font-weight:800}
.banner-sub{font-size:11px;color:var(--muted);margin-top:2px}
.banner-stats{display:flex;gap:24px;flex-wrap:wrap}
.banner-stat{text-align:center}
.banner-stat-val{font-family:var(--font-display);font-size:18px;font-weight:700}
.banner-stat-lbl{font-size:9px;color:var(--muted);text-transform:uppercase;letter-spacing:.8px;margin-top:2px}

/* === RESPONSIVE === */
@media(max-width:900px){
  .three-col{grid-template-columns:220px 1fr}
  .three-col .right-panel{display:none}
  .main-nav .nav-link{padding:5px 8px;font-size:9px}
}
@media(max-width:768px){
  .two-col{grid-template-columns:1fr}
  .two-col .sidebar{display:none}
  .grid-3,.grid-4{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){
  .app-header{padding:0 12px;gap:10px}
  .main-nav{display:none}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
}