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var(--spring);max-height:85vh;overflow-y:auto}.bottom-sheet-handle{width:36px;height:4px;background:var(--tg-theme-hint-color);opacity:.3;border-radius:var(--radius-full);margin:0 auto var(--space-md)}.bottom-nav{position:fixed;bottom:0;left:0;right:0;display:flex;justify-content:space-around;padding:var(--space-sm) 0;padding-bottom:calc(var(--safe-area-bottom) + var(--space-sm));background:var(--tg-theme-bg-color);border-top:1px solid var(--tg-theme-secondary-bg-color);z-index:100}.nav-item{display:flex;flex-direction:column;align-items:center;gap:4px;padding:var(--space-sm) var(--space-md);color:var(--tg-theme-hint-color);text-decoration:none;font-size:var(--font-size-xs);font-weight:500;transition:color var(--transition-fast);border:none;background:none;cursor:pointer}.nav-item.active{color:var(--color-primary)}.nav-icon{font-size:24px;transition:transform var(--transition-fast)}.nav-item.active .nav-icon{transform:scale(1.1)}.loading-screen{position:fixed;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;background:var(--tg-theme-bg-color);gap:var(--space-md);z-index:1000}.loader{width:48px;height:48px;border:3px solid var(--tg-theme-secondary-bg-color);border-top-color:var(--color-primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loader-text{color:var(--tg-theme-hint-color);font-size:var(--font-size-sm)}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-2xl);text-align:center;flex:1}.empty-icon{font-size:64px;margin-bottom:var(--space-md);opacity:.5}.empty-title{font-size:var(--font-size-lg);font-weight:600;margin-bottom:var(--space-sm)}.empty-description{font-size:var(--font-size-sm);color:var(--tg-theme-hint-color)}.text-center{text-align:center}.text-hint{color:var(--tg-theme-hint-color)}.text-primary{color:var(--color-primary)}.text-success{color:var(--color-success)}.text-error{color:var(--color-error)}.mt-sm{margin-top:var(--space-sm)}.mt-md{margin-top:var(--space-md)}.mt-lg{margin-top:var(--space-lg)}.mb-sm{margin-bottom:var(--space-sm)}.mb-md{margin-bottom:var(--space-md)}.mb-lg{margin-bottom:var(--space-lg)}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-sm{gap:var(--space-sm)}.gap-md{gap:var(--space-md)}.w-full{width:100%}.flex-1{flex:1}::-webkit-scrollbar{width:4px;height:4px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--tg-theme-hint-color);border-radius:2px;opacity:.3}.fade-in{animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.slide-up{animation:slideUp .3s var(--spring)}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.scale-in{animation:scaleIn .3s var(--spring)}@keyframes scaleIn{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}.touch-feedback{transition:transform var(--transition-fast),opacity var(--transition-fast)}.touch-feedback:active{transform:scale(.97);opacity:.8}