:root{--primary-color:#1b48c4;--primary-light:#2563eb;--primary-dark:#1e40af;--secondary-color:#f0f5ff;--text-color:#0f172a;--text-light:#64748b;--background-color:#fff;--card-background:#fff;--section-padding:3rem;--border-radius:8px;--box-shadow:0 4px 6px -1px rgba(0,0,0,.1),0 2px 4px -1px rgba(0,0,0,.06)}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.5;background-color:var(--background-color)}body,h1,h2,h3,h4,h5,h6{color:var(--text-color)}h1,h2,h3,h4,h5,h6{font-weight:700;margin-bottom:1rem;line-height:1.2}h1{font-size:2.75rem;margin-bottom:1.5rem}h2{font-size:2rem;margin-bottom:1.2rem}h3{font-size:1.5rem}h3,p{margin-bottom:1rem}p{color:var(--text-light)}.container{width:100%;max-width:1280px;margin:0 auto;padding:0 1.5rem}.section{padding:5rem 0}.section-title{text-align:center;margin-bottom:3rem}.section-title h2{font-size:2.5rem;font-weight:700;margin-bottom:1rem;background:linear-gradient(to right,var(--primary-color),var(--primary-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.section-title p{font-size:1.125rem;color:var(--text-light);max-width:600px;margin:0 auto}.button{display:inline-flex;align-items:center;justify-content:center;padding:.75rem 1.5rem;font-weight:500;border-radius:var(--border-radius);transition:all .3s ease;text-decoration:none;cursor:pointer;background-color:var(--primary-color);color:#fff;border:none}.button:hover{background-color:var(--primary-light);transform:translateY(-1px)}.button-outline{background-color:transparent;border:2px solid var(--primary-color);color:var(--primary-color)}.button-outline:hover{background-color:var(--primary-color);color:#fff}.card{background-color:var(--card-background);border-radius:var(--border-radius);box-shadow:var(--box-shadow);padding:1.5rem;margin-bottom:1.5rem;transition:transform .3s ease,box-shadow .3s ease}.card:hover{transform:translateY(-5px);box-shadow:0 15px 30px rgba(0,0,0,.1)}.feature-card{background-color:#fff;color:var(--text-color);border-radius:var(--border-radius);padding:1.75rem;margin:.5rem;flex:1 1;min-width:250px;display:flex;flex-direction:column;align-items:center;text-align:center;box-shadow:var(--box-shadow);transition:transform .3s ease,box-shadow .3s ease}.feature-card:hover{transform:translateY(-5px);box-shadow:0 15px 30px rgba(0,0,0,.1)}.feature-card h3{margin-top:1.25rem;margin-bottom:.75rem;font-size:1.25rem}.feature-card p{color:var(--text-light);font-size:.9375rem}.feature-icon{width:60px;height:60px;display:flex;align-items:center;justify-content:center;background-color:var(--secondary-color);border-radius:50%;color:var(--primary-color)}.language-selector{display:flex;gap:.5rem;margin:1rem 0;flex-wrap:wrap}.language-button{padding:.5rem 1.25rem;background-color:transparent;border-radius:30px;border:1px solid #e2e8f0;cursor:pointer;display:flex;align-items:center;gap:.5rem;font-weight:500;transition:all .3s ease}.language-button.active{background-color:var(--primary-color);color:#fff;border-color:var(--primary-color)}.language-button:hover:not(.active){border-color:var(--primary-color);color:var(--primary-color)}.tip-options{display:flex;flex-wrap:wrap;gap:1.5rem;margin:2rem 0}.tip-option{background-color:#fff;border:1px solid #e2e8f0;border-radius:var(--border-radius);padding:1.5rem;flex:1 1;min-width:250px;display:flex;align-items:center;justify-content:space-between;box-shadow:var(--box-shadow);transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease}.tip-option:hover{transform:translateY(-5px);box-shadow:0 15px 30px rgba(0,0,0,.1);border-color:var(--primary-color)}.tip-price{font-weight:700;color:var(--primary-color);font-size:1.5rem}.hero-text{max-width:700px}.hero-section{background-color:var(--background-color);position:relative;overflow:hidden}.about-section{background-color:var(--secondary-color)}.features-section{background-color:var(--background-color)}.support-section{background-color:#f8fafc}@media (max-width:1024px){h1{font-size:2.5rem}h2{font-size:2rem}.section{padding:2.5rem 0}}@media (max-width:768px){h1{font-size:2.25rem}h2{font-size:1.75rem}.section{padding:4rem 0}.section-title h2{font-size:2rem}.section-title p{font-size:1rem}.container{padding:0 1.25rem}.feature-card,.tip-option{min-width:100%}}@media (max-width:480px){.container{padding:0 1rem}.section{padding:3rem 0}.section-title h2{font-size:1.75rem}}