.page-h1-math-calculator[data-v-154664c4]{width:100%;text-align:center;color:#ffffffe6;font-size:1.25rem;font-weight:700;margin:0 0 16px;padding:0}.calc-wrapper[data-v-154664c4]{max-width:420px;margin:auto;padding:20px 16px;background:#1f1f1f;border-radius:18px;color:#fff}.screen[data-v-154664c4]{background:#111;padding:16px;border-radius:12px;text-align:right}.expr[data-v-154664c4]{font-size:14px;color:#aaa;overflow-x:auto}.result[data-v-154664c4]{font-size:36px;font-weight:700}.mode-toggle[data-v-154664c4]{display:flex;justify-content:center;gap:8px;margin-top:12px;margin-bottom:8px}.mode-btn[data-v-154664c4]{padding:6px 16px;border:2px solid #3a3a3a;border-radius:8px;background:transparent;color:#aaa;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s ease}.mode-btn[data-v-154664c4]:hover{border-color:#555;color:#fff}.mode-btn.active[data-v-154664c4]{background:#ff9f0a;border-color:#ff9f0a;color:#fff}.keys[data-v-154664c4]{margin-top:12px;display:grid;grid-template-columns:repeat(4,1fr);gap:10px}button[data-v-154664c4]{height:56px;border:none;border-radius:12px;background:#2f2f2f;color:#fff;font-size:18px;cursor:pointer;transition:opacity .15s ease}button[data-v-154664c4]:hover{opacity:.85}button[data-v-154664c4]:active{opacity:.7}button.op[data-v-154664c4]{background:#ff9f0a}button.fn[data-v-154664c4]{background:#3a3a3a}button.equal[data-v-154664c4]{background:#34c759}button.zero[data-v-154664c4]{grid-column:span 2}button.const-btn[data-v-154664c4]{background:#5856d6;font-weight:600}.history-section[data-v-154664c4]{margin-top:16px;padding:12px;background:#161616;border-radius:12px;border:1px solid #2a2a2a}.history-header[data-v-154664c4]{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;padding-bottom:8px;border-bottom:1px solid #2a2a2a}.history-title[data-v-154664c4]{font-size:14px;font-weight:600;color:#ccc}.clear-history-btn[data-v-154664c4]{padding:4px 12px;border:1px solid #ff6b6b;border-radius:6px;background:transparent;color:#ff6b6b;font-size:12px;cursor:pointer;transition:all .2s ease}.clear-history-btn[data-v-154664c4]:hover{background:#ff6b6b;color:#fff}.history-list[data-v-154664c4]{max-height:200px;overflow-y:auto}.history-item[data-v-154664c4]{padding:8px 10px;margin-bottom:4px;background:#1e1e1e;border-radius:6px;font-size:13px;color:#bbb;cursor:pointer;transition:all .15s ease;word-break:break-all}.history-item[data-v-154664c4]:hover{background:#2a2a2a;color:#fff}.history-item[data-v-154664c4]:last-child{margin-bottom:0}@media(max-width:480px){.result[data-v-154664c4]{font-size:30px}button[data-v-154664c4]{height:48px}.page-h1-math-calculator[data-v-154664c4]{font-size:1.1rem;margin-bottom:12px}}