:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:dark;color:#ffffffde;background-color:#0f172a;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh;background:radial-gradient(circle at top left,#1e293b,#0f172a)}#root{max-width:1280px;margin:0 auto;padding:2rem;width:100%}*{box-sizing:border-box}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1e293b;cursor:pointer;transition:all .25s}button:hover{border-color:#646cff;background-color:#334155;transform:translateY(-2px)}button:active{transform:translateY(0)}.card{background:#1e293b80;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.1);border-radius:24px;padding:2rem;box-shadow:0 10px 30px #0000004d}h1{font-size:3.2em;line-height:1.1;background:linear-gradient(to right,#60a5fa,#a78bfa);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:2rem}.container{display:flex;flex-direction:column;gap:3rem;align-items:center}header{width:100%;max-width:600px;text-align:center;position:relative;margin-bottom:1rem}.header-actions{position:absolute;top:0;left:0;right:0;display:flex;justify-content:space-between;align-items:center}.user-profile{display:flex;align-items:center;gap:.75rem;background:#ffffff0d;padding:.5rem 1rem;border-radius:20px;border:1px solid rgba(255,255,255,.1)}.user-info{display:flex;align-items:center;gap:.5rem;font-size:.9rem;color:#e2e8f0}.logout-btn{background:transparent;border:none;color:#94a3b8;cursor:pointer;display:flex;align-items:center;padding:.25rem;transition:color 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.2s}.history-item:hover{transform:scale(1.02);background:#1e293b99}.mood-icon{width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;color:#0f172a}.mood-info{display:flex;flex-direction:column}.mood-label{font-weight:600;color:#f1f5f9}.mood-reason{margin:.25rem 0;font-size:.95rem;color:#cbd5e1;line-height:1.4}.mood-time{font-size:.85rem;color:#94a3b8}.empty-state{text-align:center;padding:3rem;color:#64748b;font-style:italic}@media(max-width:640px){.mood-grid{grid-template-columns:repeat(3,1fr)}.user-profile{position:static;margin-bottom:1rem;justify-content:center}}.auth-container{min-height:80vh;display:flex;align-items:center;justify-content:center;width:100%}.auth-card{width:100%;max-width:400px;padding:2.5rem;text-align:center}.form-group{margin-bottom:1.25rem}.form-group input{width:100%;padding:.875rem 1.25rem;background:#0f172a80;border:1px solid rgba(255,255,255,.1);border-radius:12px;color:#fff;font-size:1rem;transition:border-color .2s,box-shadow .2s}.form-group input:focus{outline:none;border-color:#6366f1;box-shadow:0 0 0 2px #6366f133}.auth-msg{margin-bottom:1rem;font-size:.9rem;padding:.75rem;border-radius:8px}.auth-msg.error{background:#f43f5e1a;color:#fb7185;border:1px solid rgba(244,63,94,.2)}.auth-msg.success{background:#22c55e1a;color:#4ade80;border:1px solid rgba(34,197,94,.2)}.auth-toggle{margin-top:1.5rem;color:#94a3b8;font-size:.9rem}.auth-toggle button{background:transparent;border:none;color:#6366f1;font-weight:600;cursor:pointer;padding:0 .25rem}.auth-toggle button:hover{text-decoration:underline}.language-selector-floating{position:fixed;top:2rem;right:2rem;z-index:100}.lang-btn{display:flex;align-items:center;gap:.5rem;background:#ffffff1a;border:1px solid rgba(255,255,255,.2);color:#fff;padding:.5rem 1rem;border-radius:30px;cursor:pointer;transition:all 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