main{flex:1;display:flex;flex-direction:column;align-items:center;padding:32px 24px}.container-wide{width:100%;max-width:1080px;display:flex;flex-direction:column;gap:24px}.title-section{text-align:center}.title{color:#fff;font-size:28px;font-weight:700;background:linear-gradient(135deg,#fff 0%,var(--text) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.calc-layout{display:grid;grid-template-columns:1fr 320px;gap:20px}.calc-main{display:flex;flex-direction:column;gap:12px}.calc-display{background:var(--bg2);border:1px solid var(--border);border-radius:12px;padding:20px;text-align:right;min-height:100px;display:flex;flex-direction:column;justify-content:flex-end}.calc-expression{font-size:16px;color:var(--muted);font-family:JetBrains Mono,monospace;word-break:break-all;min-height:24px}.calc-result{font-size:36px;font-weight:700;color:#fff;font-family:JetBrains Mono,monospace;word-break:break-all}.calc-mode-bar{display:flex;gap:8px}.calc-mode-bar .mode-btn.active{background:var(--accent);border-color:var(--accent);color:#000}.calc-buttons{display:flex;flex-direction:column;gap:6px}.calc-row{display:flex;gap:6px}.calc-btn{flex:1;padding:12px 8px;font-size:15px;font-family:JetBrains Mono,monospace;border-radius:var(--r);min-height:48px}.calc-btn.num{background:var(--bg2)}.calc-btn.op{background:var(--bg3);color:var(--accent)}.calc-btn.fn{background:var(--bg3);color:var(--warning);font-size:12px}.calc-btn.mem{background:var(--bg3);color:var(--muted);font-size:11px}.calc-btn:hover{filter:brightness(1.3)}.calc-side{display:flex;flex-direction:column;gap:16px}.calc-history-card,.calc-graph-card{background:var(--bg2);border:1px solid var(--border);border-radius:12px;padding:16px;display:flex;flex-direction:column;gap:10px}.calc-history-list{max-height:180px;overflow-y:auto;display:flex;flex-direction:column;gap:4px}.calc-history-list .history-item{padding:6px 8px;background:var(--bg3);border:1px solid var(--border);border-radius:6px;cursor:pointer;font-family:JetBrains Mono,monospace;font-size:11px;display:flex;justify-content:space-between;transition:border-color .2s}.calc-history-list .history-item:hover{border-color:var(--accent)}.calc-history-list .history-item .expr{color:var(--text)}.calc-history-list .history-item .res{color:var(--accent);font-weight:600}.calc-history-list .history-empty{color:var(--muted);font-style:italic;font-size:12px}#graphCanvas{width:100%;height:200px;background:var(--bg3);border-radius:var(--r);cursor:crosshair}.graph-input-row{display:flex;gap:6px}.graph-input-row input{flex:1;background:var(--bg3);border:1px solid var(--border);color:#fff;padding:6px 10px;border-radius:var(--r);outline:none;font-family:JetBrains Mono,monospace;font-size:12px}.graph-input-row input:focus{border-color:var(--accent)}@media(max-width:768px){main{padding:20px 12px}.calc-layout{grid-template-columns:1fr}}