:root{--tg-theme-bg-color: #ffffff;--tg-theme-text-color: #000000;--tg-theme-hint-color: #999999;--tg-theme-link-color: #2481cc;--tg-theme-button-color: #2481cc;--tg-theme-button-text-color: #ffffff;--tg-theme-secondary-bg-color: #f0f0f0;--tg-theme-header-bg-color: #ffffff;--tg-theme-section-bg-color: #ffffff;--tg-theme-section-header-text-color: #1a1a1a;--tg-theme-subtitle-text-color: #6e6e6e;--tg-theme-destructive-text-color: #e53935;--uc-primary: #0891b2;--uc-primary-light: #22d3ee;--uc-primary-dark: #0e7490;--uc-accent: #0d9488;--uc-gradient: linear-gradient(135deg, #0891b2, #0d9488);--uc-radius: 12px;--uc-radius-sm: 8px;--uc-shadow: 0 2px 8px rgba(0, 0, 0, .08);--uc-shadow-lg: 0 4px 16px rgba(0, 0, 0, .12);--uc-transition: .2s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background-color:var(--tg-theme-bg-color);color:var(--tg-theme-text-color);line-height:1.5;min-height:100vh;overflow-x:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{display:flex;flex-direction:column;min-height:100vh}input,select,button,textarea{font-family:inherit;font-size:inherit;color:inherit;border:none;outline:none;background:none}button{cursor:pointer;-webkit-user-select:none;user-select:none}input::-webkit-outer-spin-button,input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}input[type=number]{-moz-appearance:textfield;appearance:textfield}::-webkit-scrollbar{width:0;height:0}::selection{background-color:var(--uc-primary);color:#fff}.app{max-width:480px;margin:0 auto;padding:12px 16px 32px;display:flex;flex-direction:column;gap:16px;width:100%}.app-header{display:flex;align-items:center;justify-content:space-between;padding:8px 0}.app-title{font-size:1.35rem;font-weight:700;background:var(--uc-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.usage-badge{font-size:.7rem;font-weight:600;padding:4px 10px;border-radius:20px;background:var(--tg-theme-secondary-bg-color);color:var(--tg-theme-hint-color);white-space:nowrap}.premium-badge{font-size:.7rem;font-weight:700;padding:4px 12px;border-radius:20px;background:linear-gradient(135deg,#f59e0b,#f97316);color:#fff;white-space:nowrap}.tabs-container{overflow:hidden;margin:0 -16px;padding:0 16px}.tabs-scroll{display:flex;gap:8px;overflow-x:auto;padding:4px 0 8px;scrollbar-width:none;-ms-overflow-style:none}.tabs-scroll::-webkit-scrollbar{display:none}.tab-btn{display:flex;flex-direction:column;align-items:center;gap:4px;padding:10px 14px;border-radius:var(--uc-radius);background:var(--tg-theme-secondary-bg-color);border:2px solid transparent;transition:all var(--uc-transition);flex-shrink:0;min-width:64px;position:relative}.tab-btn:active{transform:scale(.95)}.tab-active{background:linear-gradient(135deg,#0891b21f,#0d94881f);border-color:var(--uc-primary)}.tab-locked{opacity:.55}.tab-icon{font-size:1.25rem;line-height:1}.tab-label{font-size:.65rem;font-weight:600;color:var(--tg-theme-text-color);white-space:nowrap}.tab-active .tab-label{color:var(--uc-primary-dark)}.tab-lock{position:absolute;top:2px;right:4px;font-size:.55rem}.converter-card{background:var(--tg-theme-section-bg-color);border-radius:var(--uc-radius);padding:20px 16px;box-shadow:var(--uc-shadow);display:flex;flex-direction:column;gap:12px}.unit-row{display:flex;flex-direction:column;gap:4px}.unit-label{font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--tg-theme-hint-color)}.unit-select{width:100%;padding:10px 32px 10px 12px;border-radius:var(--uc-radius-sm);background:var(--tg-theme-secondary-bg-color);color:var(--tg-theme-text-color);font-size:.95rem;font-weight:500;appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23999' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;cursor:pointer;transition:background-color var(--uc-transition)}.unit-select:focus{outline:2px solid var(--uc-primary);outline-offset:-2px}.input-row{position:relative;display:flex;align-items:center}.value-input{width:100%;padding:14px 50px 14px 16px;font-size:1.5rem;font-weight:700;border-radius:var(--uc-radius-sm);background:var(--tg-theme-secondary-bg-color);color:var(--tg-theme-text-color);transition:background-color var(--uc-transition)}.value-input:focus{outline:2px solid var(--uc-primary);outline-offset:-2px}.value-input::placeholder{color:var(--tg-theme-hint-color);font-weight:400;font-size:1.1rem}.input-symbol{position:absolute;right:14px;font-size:.9rem;font-weight:600;color:var(--tg-theme-hint-color);pointer-events:none}.swap-row{display:flex;justify-content:center;margin:-4px 0}.swap-btn{width:44px;height:44px;border-radius:50%;background:var(--uc-gradient);color:#fff;font-size:1.3rem;display:flex;align-items:center;justify-content:center;box-shadow:var(--uc-shadow);transition:transform .4s cubic-bezier(.34,1.56,.64,1);border:3px solid var(--tg-theme-section-bg-color)}.swap-btn:active{box-shadow:var(--uc-shadow-lg)}.result-container{display:flex;align-items:baseline;gap:8px;padding:16px;background:linear-gradient(135deg,#0891b214,#0d948814);border-radius:var(--uc-radius-sm);min-height:64px;justify-content:center;flex-wrap:wrap}.result-value{font-size:2rem;font-weight:800;color:var(--uc-primary-dark);line-height:1.1;word-break:break-all;text-align:center;transition:filter var(--uc-transition)}.result-blurred{filter:blur(6px);-webkit-user-select:none;user-select:none}.result-symbol{font-size:1rem;font-weight:600;color:var(--uc-accent)}.limit-notice{text-align:center;padding:12px;background:#e5393514;border-radius:var(--uc-radius-sm)}.limit-notice p{font-size:.85rem;font-weight:600;color:var(--tg-theme-destructive-text-color);margin-bottom:8px}.premium-btn{padding:10px 24px;border-radius:24px;background:linear-gradient(135deg,#f59e0b,#f97316);color:#fff;font-size:.85rem;font-weight:700;border:none;box-shadow:0 2px 8px #f59e0b4d;transition:all var(--uc-transition)}.premium-btn:active{transform:scale(.96)}.formula-hint{text-align:center;font-size:.78rem;color:var(--tg-theme-hint-color);font-weight:500;padding:4px 0}.quick-section{display:flex;flex-direction:column;gap:10px}.section-title{font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--tg-theme-section-header-text-color)}.quick-chips{display:flex;flex-wrap:wrap;gap:8px}.quick-chip{padding:7px 14px;border-radius:20px;font-size:.78rem;font-weight:600;background:var(--tg-theme-secondary-bg-color);color:var(--tg-theme-text-color);transition:all var(--uc-transition);white-space:nowrap;border:1.5px solid transparent}.quick-chip:active{transform:scale(.95)}.chip-active{background:linear-gradient(135deg,#0891b226,#0d948826);border-color:var(--uc-primary);color:var(--uc-primary-dark)}.history-section{display:flex;flex-direction:column;gap:8px}.history-header{display:flex;align-items:center;justify-content:space-between}.history-toggle{background:none;border:none;display:flex;align-items:center;gap:6px;cursor:pointer;padding:0;color:var(--tg-theme-section-header-text-color)}.toggle-arrow{font-size:.85rem;transition:transform var(--uc-transition);display:inline-block}.arrow-open{transform:rotate(180deg)}.clear-btn{font-size:.72rem;font-weight:600;color:var(--tg-theme-destructive-text-color);padding:4px 10px;border-radius:12px;background:#e5393514;transition:all var(--uc-transition)}.clear-btn:active{transform:scale(.95)}.history-list{display:flex;flex-direction:column;gap:6px}.history-empty{text-align:center;font-size:.82rem;color:var(--tg-theme-hint-color);padding:20px 0}.history-item{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;background:var(--tg-theme-secondary-bg-color);border-radius:var(--uc-radius-sm);cursor:pointer;transition:all var(--uc-transition)}.history-item:active{transform:scale(.98)}.history-conversion{display:flex;align-items:center;gap:6px;font-size:.82rem;font-weight:500;flex:1;min-width:0;overflow:hidden}.history-input{color:var(--tg-theme-text-color);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.history-arrow{color:var(--tg-theme-hint-color);flex-shrink:0}.history-result{color:var(--uc-primary-dark);font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.history-meta{font-size:.68rem;color:var(--tg-theme-hint-color);white-space:nowrap;margin-left:10px;flex-shrink:0}.premium-banner{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;background:linear-gradient(135deg,#f59e0b1a,#f973161a);border-radius:var(--uc-radius);gap:12px}.premium-text{display:flex;flex-direction:column;gap:2px}.premium-text strong{font-size:.85rem;color:var(--tg-theme-text-color)}.premium-text span{font-size:.7rem;color:var(--tg-theme-hint-color)}.premium-btn-sm{padding:8px 16px;border-radius:20px;background:linear-gradient(135deg,#f59e0b,#f97316);color:#fff;font-size:.75rem;font-weight:700;white-space:nowrap;border:none;box-shadow:0 2px 6px #f59e0b40;transition:all var(--uc-transition);flex-shrink:0}.premium-btn-sm:active{transform:scale(.95)}@media(max-width:360px){.app{padding:10px 12px 28px;gap:12px}.value-input{font-size:1.25rem;padding:12px 44px 12px 12px}.result-value{font-size:1.6rem}.tab-btn{padding:8px 10px;min-width:56px}.tab-icon{font-size:1.1rem}.tab-label{font-size:.6rem}}