*{margin:0;padding:0;box-sizing:border-box}:root{--primary: #2563eb;--primary-hover: #1d4ed8;--bg: #ffffff;--bg-secondary: #f8fafc;--border: #e2e8f0;--text: #1e293b;--text-secondary: #64748b;--shadow: 0 1px 3px 0 rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1);--radius: 12px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--bg-secondary);color:var(--text)}#app{min-height:100vh}button{cursor:pointer;border:none;font-family:inherit;transition:all .2s ease}button:active{transform:scale(.98)}input,textarea{font-family:inherit}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}.app[data-v-b6f1754d]{min-height:100vh}.auth-view[data-v-b6f1754d]{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:2rem;background:linear-gradient(135deg,#667eea,#764ba2)}.auth-container[data-v-b6f1754d]{background:var(--bg);border-radius:var(--radius);padding:3rem;width:100%;max-width:420px;box-shadow:0 20px 25px -5px #0000001a}.auth-logo[data-v-b6f1754d]{font-size:2.5rem;text-align:center;margin-bottom:.5rem}.auth-subtitle[data-v-b6f1754d]{text-align:center;color:var(--text-secondary);margin-bottom:2rem}.auth-tabs[data-v-b6f1754d]{display:flex;gap:.5rem;margin-bottom:2rem;border-bottom:2px solid 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640px){.view-header[data-v-b6f1754d]{flex-direction:column;align-items:stretch}.topics-grid[data-v-b6f1754d],.flashcards-grid[data-v-b6f1754d]{grid-template-columns:1fr}.auth-container[data-v-b6f1754d]{padding:2rem}.header-content[data-v-b6f1754d]{flex-direction:column;gap:1rem;align-items:stretch}.user-section[data-v-b6f1754d]{flex-direction:column;align-items:stretch}}