:root{--bg-primary: #121318;--bg-secondary: #1a1c23;--bg-tertiary: #252833;--btn-num: #2d313f;--btn-op: #3a3f52;--btn-accent: #ff9500;--btn-fn: #232733;--text-main: #f0f2f5;--text-muted: #8e95a5;--text-accent: #00e699;--border-color: #2e3342;--chat-sent: #007aff;--chat-received: #282c37;--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--safe-area-top: env(safe-area-inset-top, 0px);--safe-area-bottom: env(safe-area-inset-bottom, 0px)}*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent;-webkit-user-select:none;user-select:none}body{background-color:var(--bg-primary);color:var(--text-main);font-family:var(--font-family);height:100vh;height:100dvh;overflow:hidden;display:flex;flex-direction:column}#app{width:100%;height:100%;display:flex;flex-direction:column}.calc-container{display:flex;flex-direction:column;height:100%;max-width:440px;max-height:100dvh;margin:0 auto;width:100%;padding:var(--safe-area-top) 12px var(--safe-area-bottom) 12px;background-color:var(--bg-primary);overflow:hidden}.calc-header{height:40px;flex:0 0 auto;display:flex;align-items:center;justify-content:space-between;padding:0 8px}.calc-title{font-size:1.05rem;font-weight:600;color:var(--text-muted);letter-spacing:.5px;cursor:pointer}.calc-title.armed{color:var(--text-muted)}.calc-mode-indicator{font-size:.75rem;font-weight:700;padding:2px 8px;background-color:var(--bg-tertiary);color:var(--text-accent);border-radius:4px}.calc-display{flex:0 0 auto;min-height:80px;display:flex;flex-direction:column;justify-content:flex-end;align-items:flex-end;padding:12px;background-color:var(--bg-secondary);border-radius:16px;margin-bottom:8px;overflow:hidden;border:1px solid var(--border-color)}.calc-history-line{font-size:1rem;color:var(--text-muted);min-height:20px;word-break:break-all;text-align:right;opacity:.8}.calc-current-line{font-size:2.2rem;font-weight:300;color:var(--text-main);word-break:break-all;text-align:right;line-height:1.2}.calc-keypad{flex:1;display:grid;grid-template-columns:repeat(5,1fr);grid-template-rows:repeat(9,1fr);gap:6px;padding-bottom:8px;min-height:0}.calc-btn{border:none;outline:none;border-radius:10px;font-size:1.1rem;font-weight:500;color:var(--text-main);background-color:var(--btn-num);display:flex;align-items:center;justify-content:center;cursor:pointer;height:100%;width:100%;transition:filter .1s ease,transform .05s ease}.calc-btn:active{filter:brightness(1.3);transform:scale(.96)}.calc-btn.btn-fn{background-color:var(--btn-fn);color:#7d889e;font-size:.9rem}.calc-btn.btn-op{background-color:var(--btn-op);color:#64b5f6;font-size:1.1rem}.calc-btn.btn-accent{background-color:var(--btn-accent);color:#fff;font-weight:600;font-size:1.3rem}.calc-btn.btn-sub{font-size:.85rem}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background-color:#000000bf;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:999;padding:16px}.modal-card{background-color:var(--bg-secondary);border:1px solid var(--border-color);border-radius:20px;padding:24px;width:100%;max-width:360px;display:flex;flex-direction:column;gap:16px}.modal-title{font-size:1.2rem;font-weight:600;color:var(--text-main);text-align:center}.modal-subtitle{font-size:.85rem;color:var(--text-muted);text-align:center;line-height:1.4}.modal-input{width:100%;padding:12px 16px;background-color:var(--bg-primary);border:1px solid var(--border-color);border-radius:10px;color:var(--text-main);font-size:1.1rem;text-align:center;letter-spacing:4px;outline:none}.modal-btn{padding:12px;background-color:var(--chat-sent);color:#fff;border:none;border-radius:10px;font-size:1rem;font-weight:600;cursor:pointer}.chat-container{display:flex;flex-direction:column;height:100%;max-width:600px;margin:0 auto;width:100%;background-color:var(--bg-primary)}.chat-header{height:56px;padding:0 16px;background-color:var(--bg-secondary);border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between}.chat-header-title{font-weight:600;font-size:1.05rem;display:flex;align-items:center;gap:8px}.chat-status-dot{width:8px;height:8px;border-radius:50%;background-color:#ff3b30}.chat-status-dot.online{background-color:#34c759}.chat-actions{display:flex;align-items:center;gap:12px}.icon-btn{background:none;border:none;color:var(--text-main);font-size:1.2rem;cursor:pointer;padding:6px;border-radius:8px}.icon-btn:hover{background-color:var(--bg-tertiary)}.chat-messages{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:10px}.msg-bubble{max-width:78%;padding:10px 14px;border-radius:16px;font-size:.95rem;line-height:1.4;position:relative;word-break:break-word}.msg-bubble.sent{align-self:flex-end;background-color:var(--chat-sent);color:#fff;border-bottom-right-radius:4px}.msg-bubble.received{align-self:flex-start;background-color:var(--chat-received);color:var(--text-main);border-bottom-left-radius:4px}.msg-meta{display:flex;align-items:center;justify-content:flex-end;gap:4px;font-size:.7rem;opacity:.75;margin-top:4px}.msg-img{max-width:100%;border-radius:10px;margin-top:4px;cursor:pointer}.typing-indicator{font-size:.8rem;color:var(--text-muted);padding:4px 16px;font-style:italic}.chat-input-bar{padding:12px 16px;background-color:var(--bg-secondary);border-top:1px solid var(--border-color);display:flex;align-items:center;gap:10px}.chat-input{flex:1;background-color:var(--bg-primary);border:1px solid var(--border-color);border-radius:20px;padding:10px 16px;color:var(--text-main);font-size:.95rem;outline:none}.privacy-cover{position:fixed;top:0;right:0;bottom:0;left:0;background-color:var(--bg-primary);z-index:99999;display:flex;align-items:center;justify-content:center}.privacy-cover.hidden{display:none}.privacy-calculator-mock{width:90%;max-width:380px;background-color:var(--bg-secondary);border-radius:20px;padding:20px;display:flex;flex-direction:column;gap:16px}.mock-header{font-weight:600;color:var(--text-muted);text-align:center}.mock-display{font-size:2.5rem;text-align:right;color:var(--text-main)}