:root{--primary-color:#4361ee;--secondary-color:#3f37c9;--accent-color:#4895ef;--light-color:#f8f9fa;--dark-color:#212529;--success-color:#4bb543;--danger-color:#ff3333;--warning-color:#ffcc00}*{margin:0;padding:0;box-sizing:border-box}body{font-family:'Poppins',sans-serif;line-height:1.6;color:var(--dark-color);background-color:#f5f7fa}.container{width:90%;max-width:1200px;margin:0 auto;padding:0 15px}header{background-color:#fff;box-shadow:0 2px 10px rgb(0 0 0 / .1);position:fixed;width:100%;top:0;z-index:1000}nav{display:flex;justify-content:space-between;align-items:center;padding:1rem 0}.logo a{font-size:1.5rem;font-weight:700;color:var(--primary-color);text-decoration:none}.nav-links{display:flex;list-style:none}.nav-links li{margin-left:2rem}.nav-links a{text-decoration:none;color:var(--dark-color);font-weight:500;transition:color 0.3s}.nav-links a:hover{color:var(--primary-color)}.hamburger{display:none;cursor:pointer}main{margin-top:80px;min-height:calc(100vh - 160px)}.form-container{max-width:500px;margin:2rem auto;padding:2rem;background:#fff;border-radius:8px;box-shadow:0 0 20px rgb(0 0 0 / .1)}.form-title{text-align:center;margin-bottom:1.5rem;color:var(--primary-color)}.form-group{margin-bottom:1.5rem}.form-group label{display:block;margin-bottom:.5rem;font-weight:500}.form-control{width:100%;padding:.75rem;border:1px solid #ddd;border-radius:4px;font-size:1rem;transition:border-color 0.3s}.form-control:focus{border-color:var(--primary-color);outline:none}.btn{display:inline-block;padding:.75rem 1.5rem;background-color:var(--primary-color);color:#fff;border:none;border-radius:4px;font-size:1rem;cursor:pointer;transition:background-color 0.3s}.btn:hover{background-color:var(--secondary-color)}.btn-block{display:block;width:100%}.alert{padding:1rem;margin-bottom:1rem;border-radius:4px}.alert-success{background-color:#d4edda;color:#155724}.alert-danger{background-color:#f8d7da;color:#721c24}.url-form{margin:3rem auto;max-width:800px;background:#fff;padding:2rem;border-radius:8px;box-shadow:0 0 20px rgb(0 0 0 / .1)}.url-form h2{text-align:center;margin-bottom:1.5rem;color:var(--primary-color)}.url-input-group{display:flex;margin-bottom:1rem}.url-input{flex:1;padding:.75rem;border:1px solid #ddd;border-radius:4px 0 0 4px;font-size:1rem}.url-submit{padding:.75rem 1.5rem;background-color:var(--primary-color);color:#fff;border:none;border-radius:0 4px 4px 0;cursor:pointer;transition:background-color 0.3s}.url-submit:hover{background-color:var(--secondary-color)}.custom-alias-container{margin-top:1rem}.dashboard{display:grid;grid-template-columns:250px 1fr;gap:2rem}.sidebar{background:#fff;border-radius:8px;padding:1.5rem;box-shadow:0 0 10px rgb(0 0 0 / .1)}.sidebar-menu{list-style:none}.sidebar-menu li{margin-bottom:.5rem}.sidebar-menu a{display:block;padding:.75rem;color:var(--dark-color);text-decoration:none;border-radius:4px;transition:background-color 0.3s}.sidebar-menu a:hover,.sidebar-menu a.active{background-color:var(--primary-color);color:#fff}.dashboard-content{background:#fff;border-radius:8px;padding:1.5rem;box-shadow:0 0 10px rgb(0 0 0 / .1)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem;margin-bottom:2rem}.stat-card{background:#fff;border-radius:8px;padding:1.5rem;box-shadow:0 0 10px rgb(0 0 0 / .1);text-align:center}.stat-card h3{font-size:2rem;color:var(--primary-color);margin-bottom:.5rem}.stat-card p{color:#666}.table{width:100%;border-collapse:collapse;margin-bottom:1.5rem}.table th,.table td{padding:.75rem;text-align:left;border-bottom:1px solid #ddd}.table th{background-color:#f5f7fa;font-weight:600}.table tr:hover{background-color:#f5f7fa}footer{background-color:var(--dark-color);color:#fff;padding:3rem 0 1rem}.footer-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem;margin-bottom:2rem}.footer-section h3{margin-bottom:1rem;font-size:1.2rem}.footer-section ul{list-style:none}.footer-section ul li{margin-bottom:.5rem}.footer-section ul li a{color:#ddd;text-decoration:none;transition:color 0.3s}.footer-section ul li a:hover{color:var(--accent-color)}.social-icons{display:flex;gap:1rem}.social-icons a{color:#fff;font-size:1.2rem;transition:color 0.3s}.social-icons a:hover{color:var(--accent-color)}.footer-bottom{text-align:center;padding-top:1rem;border-top:1px solid #444}@media (max-width:768px){.nav-links{display:none;position:absolute;top:70px;left:0;width:100%;background:#fff;flex-direction:column;padding:1rem;box-shadow:0 2px 10px rgb(0 0 0 / .1)}.nav-links.active{display:flex}.nav-links li{margin:.5rem 0}.hamburger{display:block}.dashboard{grid-template-columns:1fr}.url-input-group{flex-direction:column}.url-input{border-radius:4px;margin-bottom:.5rem}.url-submit{border-radius:4px;width:100%}}.admin-container{display:grid;grid-template-columns:250px 1fr;min-height:calc(100vh - 80px)}.admin-sidebar{background-color:var(--dark-color);color:#fff;padding:1.5rem}.admin-brand{margin-bottom:2rem;text-align:center}.admin-brand h2{color:#fff}.admin-menu{list-style:none}.admin-menu li{margin-bottom:.5rem}.admin-menu a{display:block;padding:.75rem;color:#ddd;text-decoration:none;border-radius:4px;transition:all 0.3s}.admin-menu a:hover,.admin-menu a.active{background-color:var(--primary-color);color:#fff}.admin-menu i{width:20px;text-align:center;margin-right:.5rem}.admin-main{padding:2rem;background-color:#f5f7fa}.data-table{width:100%;border-collapse:collapse;margin-bottom:1.5rem}.data-table th,.data-table td{padding:.75rem;border:1px solid #ddd}.data-table th{background-color:#f5f7fa;font-weight:600;text-align:left}.data-table tr:nth-child(even){background-color:#f9f9f9}.data-table tr:hover{background-color:#f1f1f1}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;margin-bottom:1.5rem}.form-actions{display:flex;justify-content:flex-end;gap:1rem;margin-top:1.5rem}.btn-sm{padding:.5rem 1rem;font-size:.875rem}.btn-danger{background-color:var(--danger-color)}.btn-danger:hover{background-color:#c00}.btn-warning{background-color:var(--warning-color);color:var(--dark-color)}.btn-warning:hover{background-color:#e6b800}.btn-success{background-color:var(--success-color)}.btn-success:hover{background-color:#3a9a32}.card{background:#fff;border-radius:8px;padding:1.5rem;box-shadow:0 0 10px rgb(0 0 0 / .1);margin-bottom:1.5rem}.card-title{margin-bottom:1rem;padding-bottom:.5rem;border-bottom:1px solid #eee}@media (max-width:992px){.admin-container{grid-template-columns:1fr}.admin-sidebar{display:none}.form-row{grid-template-columns:1fr}}.message-list{max-height:500px;overflow-y:auto}.message{background:#fff;border:1px solid #ddd;border-radius:4px;padding:1rem;margin-bottom:1rem}.message.responded{border-left:4px solid var(--success-color)}.message-header{display:flex;justify-content:space-between;margin-bottom:.5rem;font-size:.875rem;color:#666}.message-content{padding:.5rem 0}.message-response{margin-top:1rem;padding-top:1rem;border-top:1px solid #eee}.badge{display:inline-block;padding:.25rem .5rem;border-radius:4px;font-size:.75rem;font-weight:600}.badge-success{background-color:var(--success-color);color:#fff}.badge-warning{background-color:var(--warning-color);color:var(--dark-color)}.badge-danger{background-color:var(--danger-color);color:#fff}.modal{display:none;position:fixed;z-index:1001;left:0;top:0;width:100%;height:100%;overflow:auto;background-color:rgb(0 0 0 / .4)}.modal-content{background-color:#fefefe;margin:5% auto;padding:2rem;border-radius:8px;width:80%;max-width:800px;box-shadow:0 0 20px rgb(0 0 0 / .2)}.close{color:#aaa;float:right;font-size:1.5rem;font-weight:700;cursor:pointer}.close:hover{color:var(--dark-color)}.error-container{display:flex;justify-content:center;align-items:center;min-height:calc(100vh - 160px);text-align:center}.error-content h1{font-size:6rem;color:var(--primary-color);margin-bottom:1rem}.error-content h2{font-size:2rem;margin-bottom:1rem}.error-content p{font-size:1.2rem;margin-bottom:2rem;color:#666}.copy-tooltip{position:absolute;background:var(--dark-color);color:#fff;padding:.25rem .5rem;border-radius:4px;font-size:.75rem;top:-30px;left:50%;transform:translateX(-50%);white-space:nowrap}.copy-tooltip::after{content:'';position:absolute;top:100%;left:50%;margin-left:-5px;border-width:5px;border-style:solid;border-color:var(--dark-color) #fff0 #fff0 #fff0}.form-text{display:block;margin-top:.25rem;font-size:.875rem;color:var(--gray-color)}.url-input:invalid{border-color:var(--danger-color)}.url-input:valid{border-color:var(--success-color)}.chart-container{position:relative;margin:auto}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem;margin-bottom:1.5rem}.stat-card{background:#fff;border-radius:8px;padding:1.5rem;box-shadow:0 0 10px rgb(0 0 0 / .1);text-align:center;border-top:4px solid var(--primary-color)}.stat-card h3{font-size:2rem;color:var(--primary-color);margin-bottom:.5rem}.stat-card p{color:var(--gray-color)}.table{width:100%;border-collapse:collapse;margin-bottom:1.5rem}.table th{background-color:var(--light-gray);font-weight:600;text-align:left;padding:.75rem;border-bottom:2px solid #ddd}.table td{padding:.75rem;border-bottom:1px solid #eee}.table tr:hover{background-color:var(--light-gray)}