:root{--primary-color: #3f51b5;--secondary-color: #f50057;--background-color: #f5f5f5;--card-bg: #ffffff;--text-color: #333333;--text-light: #757575;--border-radius: 8px;--box-shadow: 0 4px 6px rgba(0, 0, 0, .1);--transition: all .3s ease}body{font-family:Roboto,sans-serif;background-color:var(--background-color);color:var(--text-color);margin:0;padding:0}.app-container{max-width:1200px;margin:0 auto;padding:20px}.navbar{display:flex;justify-content:space-between;align-items:center;background-color:var(--primary-color);color:#fff;padding:10px 20px;margin-bottom:20px;box-shadow:var(--box-shadow)}.navbar h1{margin:0;font-size:1.5rem}.nav-links a{color:#fff;text-decoration:none;margin-left:20px;font-weight:500}.nav-links a:hover{text-decoration:underline}.btn{display:flex;align-items:center;justify-content:center;gap:6px;padding:8px 16px;border:none;border-radius:4px;cursor:pointer;font-size:.9rem;font-weight:500;transition:var(--transition)}.btn-primary{background-color:var(--primary-color);color:#fff}.btn-primary:hover{background-color:#303f9f}.btn-secondary{background-color:var(--secondary-color);color:#fff}.btn-secondary:hover{background-color:#c51162}.btn-outline{border:1px solid var(--primary-color);color:var(--primary-color);background:transparent}.btn-outline:hover{background-color:#3f51b50a}.btn-danger{background-color:#f44336;color:#fff}.btn-danger:hover{background-color:#d32f2f}.dashboard{display:flex;flex-direction:column;gap:20px}.profile-section{background:var(--card-bg);padding:20px;border-radius:var(--border-radius);box-shadow:var(--box-shadow);display:flex;justify-content:space-between;align-items:center}.shared-input-section{background:var(--card-bg);padding:20px;border-radius:var(--border-radius);box-shadow:var(--box-shadow);display:flex;gap:10px;align-items:center}.shared-input-section input{flex:1;padding:10px;border:1px solid #ddd;border-radius:4px;font-size:1rem}.snippets-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}.snippet-card{background:var(--card-bg);padding:20px;border-radius:var(--border-radius);box-shadow:var(--box-shadow);transition:var(--transition);position:relative;display:flex;flex-direction:column}.snippets-list .snippet-card{cursor:pointer}.snippet-card:hover{transform:translateY(-5px);box-shadow:0 6px 12px #00000026}.snippet-card h3{margin-top:0;color:var(--primary-color)}.snippet-preview{background-color:#f8f8f8;padding:10px;border-radius:4px;overflow:hidden;max-height:100px;font-family:Fira Code,monospace;font-size:.85rem;margin-bottom:15px;flex-grow:1}.card-actions{display:flex;justify-content:space-between;align-items:center;margin-top:10px;border-top:1px solid #eee;padding-top:10px}.icon-btn{background:none;border:none;cursor:pointer;font-size:1.2rem;color:var(--text-light);padding:5px;transition:color .2s}.icon-btn:hover{color:var(--primary-color)}.icon-btn.delete:hover{color:#f44336}.modal-overlay{position:fixed;inset:0;background-color:#00000080;display:flex;justify-content:center;align-items:center;z-index:1000}.modal-content{background:#fff;padding:30px;border-radius:var(--border-radius);width:90%;max-width:500px;max-height:90vh;overflow-y:auto;box-shadow:0 10px 25px #0003;animation:slideIn .3s ease}.modal-content::-webkit-scrollbar{width:8px}.modal-content::-webkit-scrollbar-track{background:#f1f1f1;border-radius:10px}.modal-content::-webkit-scrollbar-thumb{background:var(--primary-color);border-radius:10px;transition:background .3s ease}.modal-content::-webkit-scrollbar-thumb:hover{background:#303f9f}.modal-content{scrollbar-width:thin;scrollbar-color:var(--primary-color) #f1f1f1}@keyframes slideIn{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.modal-header h2{margin:0}.close-btn{background:none;border:none;font-size:1.5rem;cursor:pointer}.form-group{margin-bottom:15px}.form-group label{display:block;margin-bottom:5px;font-weight:500}.form-group input,.form-group textarea,.form-group select{width:100%;padding:10px;border:1px solid #ddd;border-radius:4px;font-size:1rem}.form-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:20px}.auth-container{max-width:400px;margin:50px auto;background:var(--card-bg);padding:30px;border-radius:var(--border-radius);box-shadow:var(--box-shadow)}.auth-container h2{text-align:center;color:var(--primary-color)}.shared-access-container{max-width:500px;margin:50px auto;background:var(--card-bg);padding:30px;border-radius:var(--border-radius);box-shadow:var(--box-shadow);text-align:center}.loading-container{display:flex;justify-content:center;align-items:center;height:100vh;width:100%}.copy-tooltip{position:absolute;top:-45px;right:0;background-color:var(--primary-color);color:#fff;padding:8px 12px;border-radius:6px;font-size:.85rem;font-weight:500;display:flex;align-items:center;gap:6px;box-shadow:0 4px 12px #3f51b54d;animation:tooltipFadeIn .3s ease;z-index:10}.copy-tooltip:after{content:"";position:absolute;bottom:-6px;right:20px;width:0;height:0;border-left:6px solid transparent;border-right:6px solid transparent;border-top:6px solid var(--primary-color)}@keyframes tooltipFadeIn{0%{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:translateY(0)}}.markdown-preview{line-height:1.6}.markdown-preview h1,.markdown-preview h2,.markdown-preview h3{margin-top:1.5em;margin-bottom:.5em;color:#333}.markdown-preview 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