*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color:#3498db;--primary-hover:#2980b9;--secondary-color:#2ecc71;--danger-color:#e74c3c;--warning-color:#f39c12;--info-color:#3498db;--dark-color:#2c3e50;--gray-color:#7f8c8d;--light-gray:#ecf0f1;--white:#fff;--border-color:#ddd;--shadow:0 2px 10px rgba(0,0,0,.1);--radius:4px}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;font-size:16px;line-height:1.6;color:var(--dark-color);background-color:#f8f9fa}.wrapper{min-height:100vh;display:flex;flex-direction:column}.container{max-width:1200px;margin:0 auto;padding:0 20px}.header{background-color:var(--white);box-shadow:var(--shadow);position:sticky;top:0;z-index:1000}.header-inner{display:flex;justify-content:space-between;align-items:center;padding:1rem 0}.logo{font-size:1.5rem}.logo a{color:var(--primary-color);text-decoration:none;font-weight:bold}.nav{display:flex;align-items:center;gap:1rem}.nav-user{color:var(--gray-color)}.logout-form{display:inline}.main{flex:1;padding:2rem 0}.footer{background-color:var(--dark-color);color:var(--white);padding:2rem 0;text-align:center;margin-top:auto}.btn{display:inline-block;padding:.5rem 1rem;font-size:1rem;font-weight:500;text-align:center;text-decoration:none;border:none;border-radius:var(--radius);cursor:pointer;transition:all .3s ease;line-height:1.5}.btn-primary{background-color:var(--primary-color);color:var(--white)}.btn-primary:hover{background-color:var(--primary-hover)}.btn-outline{background-color:transparent;color:var(--primary-color);border:2px solid var(--primary-color)}.btn-outline:hover{background-color:var(--primary-color);color:var(--white)}.btn-danger{background-color:var(--danger-color);color:var(--white)}.btn-logout{background:none;border:none;color:var(--danger-color);cursor:pointer;font-size:1rem}.btn-block{display:block;width:100%}.btn-lg{padding:.75rem 1.5rem;font-size:1.125rem}.form-group{margin-bottom:1rem}.form-group label{display:block;margin-bottom:.5rem;font-weight:500;color:var(--dark-color)}.form-control{width:100%;padding:.5rem;font-size:1rem;border:1px solid var(--border-color);border-radius:var(--radius);transition:border-color .3s}.form-control:focus{outline:none;border-color:var(--primary-color)}.login-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:2rem}.login-box{background:var(--white);padding:2rem;border-radius:8px;box-shadow:var(--shadow);width:100%;max-width:400px}.login-title{text-align:center;margin-bottom:2rem;color:var(--dark-color)}.login-footer{margin-top:2rem;text-align:center}.alert{padding:1rem;margin-bottom:1rem;border-radius:var(--radius)}.alert-error{background-color:#fee;color:var(--danger-color);border:1px solid #fcc}.alert-success{background-color:#efe;color:var(--secondary-color);border:1px solid #cfc}.hero-section{background:linear-gradient(135deg,var(--primary-color),var(--primary-hover));color:var(--white);padding:4rem 0;text-align:center}.hero-title{font-size:3rem;margin-bottom:1rem}.hero-subtitle{font-size:1.25rem;margin-bottom:2rem;opacity:.9}.hero-buttons{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}.features-section{padding:4rem 0;background-color:var(--white)}.section-title{text-align:center;font-size:2.5rem;margin-bottom:3rem;color:var(--dark-color)}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem}.feature-card{text-align:center;padding:2rem;border-radius:8px;transition:transform .3s}.feature-card:hover{transform:translateY(-5px)}.feature-icon{font-size:3rem;margin-bottom:1rem}.feature-card h3{margin-bottom:1rem;color:var(--dark-color)}.pricing-section{padding:4rem 0;background-color:#f8f9fa}.pricing-card{background:var(--white);padding:3rem;border-radius:8px;box-shadow:var(--shadow);max-width:600px;margin:0 auto;text-align:center}.price{display:flex;justify-content:space-between;align-items:baseline;padding:1rem 0;border-bottom:1px solid var(--light-gray)}.price-label{font-size:1.125rem;color:var(--gray-color)}.price-amount{font-size:2rem;font-weight:bold;color:var(--primary-color)}.price-amount small{font-size:1rem;font-weight:normal;color:var(--gray-color)}.price-features{list-style:none;padding:2rem 0}.price-features li{padding:.5rem 0;color:var(--dark-color)}.price-features li::before{content:"✓ ";color:var(--secondary-color);font-weight:bold}.cta-section{padding:4rem 0;background-color:var(--dark-color);color:var(--white);text-align:center}.cta-section h2{font-size:2rem;margin-bottom:1rem}.cta-section p{margin-bottom:2rem;opacity:.9}.login-links{padding:2rem 0;background-color:var(--white);text-align:center;border-top:1px solid var(--light-gray)}.login-buttons{margin-top:1rem}.text-center{text-align:center}.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.5rem}.mt-4{margin-top:2rem}.mb-1{margin-bottom:.5rem}.mb-2{margin-bottom:1rem}.mb-3{margin-bottom:1.5rem}.mb-4{margin-bottom:2rem}@media (max-width:768px){.hero-title{font-size:2rem}.hero-subtitle{font-size:1rem}.section-title{font-size:2rem}.features-grid{grid-template-columns:1fr}}