:root{--light-pink: #FFE5F0;--dark-coral: #d66b6b}body{transition:background-color .3s ease,color .3s ease}*{transition-property:color,background-color,border-color;transition-duration:.3s;transition-timing-function:ease}:root{--mobile-max: 480px;--tablet-max: 768px;--desktop-small-max: 1024px;--desktop-large-max: 1400px}.mobile-overlay{display:none;position:fixed;inset:0;background:#00000080;z-index:1050;opacity:0;transition:opacity .3s ease}.mobile-overlay.active{display:block;opacity:1}.mobile-nav-toggle{display:none;width:44px;height:44px;background:transparent;border:none;border-radius:8px;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;padding:0;transition:background .2s ease}@media(max-width:768px){.mobile-nav-toggle{display:flex}}.mobile-nav-toggle span{display:block;width:24px;height:3px;background:var(--theme-primary);border-radius:2px;transition:all .3s ease}.mobile-nav-toggle:hover{background:var(--theme-secondary, rgba(0, 0, 0, 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var(--brand-primary);box-shadow:0 8px 25px #0000001a}.btn-brand-secondary:hover{background:var(--brand-primary);color:var(--brand-white);transform:translateY(-2px);box-shadow:0 12px 35px var(--brand-shadow)}.btn-theme-primary{background:var(--theme-primary);color:var(--theme-background)}.btn-theme-primary:hover:not(:disabled){background:var(--theme-accent);transform:translateY(-2px)}.btn-theme-secondary{background:var(--theme-secondary);color:var(--theme-text);border:1px solid var(--theme-secondary)}.btn-theme-secondary:hover:not(:disabled){background:var(--theme-primary);color:var(--theme-background)}.btn-theme-outline{background:transparent;color:var(--theme-primary);border:1px solid var(--theme-primary)}.btn-theme-outline:hover{background:var(--theme-primary);color:var(--theme-background);transform:translateY(-1px)}.btn-danger:hover{background:var(--error-color);color:var(--brand-white);border-color:var(--error-color)}.btn-sm{padding:.3rem 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#0003}.btn-play:active{transform:scale(1.05)}.avatar{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:1.1rem;flex-shrink:0}.avatar-brand{background:var(--brand-dark);color:#fff}.avatar-theme{background:var(--theme-primary);color:var(--theme-background)}.btn-circle{border-radius:50%}.btn-pill{border-radius:50px;padding:15px 40px;min-width:140px}.btn-full{width:100%}.btn-block{display:block;margin:0 auto}.btn-icon:hover{transform:scale(1.1);box-shadow:0 4px 12px #0003}.btn-icon:active{transform:scale(1.05)}.btn-loading{position:relative;pointer-events:none;opacity:.7}.btn-loading:after{content:"";position:absolute;right:12px;top:50%;transform:translateY(-50%);width:16px;height:16px;border:2px solid transparent;border-top-color:currentColor;border-radius:50%;animation:spin .6s linear infinite}.form-group{display:flex;flex-direction:column;gap:.5rem}.form-row{display:flex;gap:.75rem}.form-row 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