:root{--color-primary: #4CC9F0;--color-secondary: #7209B7;--color-accent-pink: #F72585;--color-accent-yellow: #FFD60A;--color-background: #E0F7FA;--color-text: #2B2D42;--color-white: #FFFFFF;--color-success: #4CAF50;--color-error: #F44336;--spacing-xs: .5rem;--spacing-sm: 1rem;--spacing-md: 1.5rem;--spacing-lg: 2rem;--spacing-xl: 3rem;--radius-sm: 8px;--radius-md: 16px;--radius-lg: 24px;--radius-full: 9999px;--shadow-sm: 0 2px 4px rgba(0, 0, 0, .1);--shadow-md: 0 4px 8px rgba(0, 0, 0, .15);--shadow-lg: 0 8px 16px rgba(0, 0, 0, .2);--shadow-pop: 0 8px 0 rgba(0, 0, 0, .15)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background-color:var(--color-background);color:var(--color-text);line-height:1.6;-webkit-font-smoothing:antialiased}#root{min-height:100vh;display:flex;flex-direction:column}h1,h2,h3{font-weight:800;color:var(--color-secondary);line-height:1.2}h1{font-size:3rem;text-shadow:2px 2px 0px var(--color-accent-pink)}h2{font-size:2rem}h3{font-size:1.5rem}button{font-family:inherit;cursor:pointer;border:none;outline:none}.app-header{background-color:#fff;padding:var(--spacing-md) var(--spacing-xl);display:flex;justify-content:space-between;align-items:center;box-shadow:var(--shadow-md);position:sticky;top:0;z-index:100}.logo{display:flex;align-items:center;gap:var(--spacing-sm);cursor:pointer;transition:transform .2s}.logo:hover{transform:scale(1.05)}.logo-icon{font-size:2rem}.app-header h1{font-family:Fredoka One,cursive;color:var(--color-secondary);font-size:2rem;margin:0;text-shadow:none}.header-actions{display:flex;align-items:center;gap:15px}.icon-btn{background:none;border:none;color:var(--color-primary);cursor:pointer;padding:8px;border-radius:50%;transition:background-color .2s;display:flex;align-items:center;justify-content:center}.icon-btn:hover{background-color:var(--color-background);color:var(--color-secondary)}.nav-btn{background-color:var(--color-primary);color:#fff;padding:8px 16px;border-radius:var(--radius-full);font-weight:700;transition:transform .2s,background-color .2s}.nav-btn:hover{transform:scale(1.05);background-color:#3aa8c9}.user-profile{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--color-secondary)}.container{max-width:1200px;margin:0 auto;padding:var(--spacing-md);width:100%}.flex-center{display:flex;justify-content:center;align-items:center}.grid-center{display:grid;place-items:center}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes pop{0%{transform:scale(.9)}50%{transform:scale(1.1)}to{transform:scale(1)}}.animate-pop{animation:pop .3s cubic-bezier(.175,.885,.32,1.275)}