*{margin:0;padding:0;box-sizing:border-box}:root{--primary-purple: #8563B5;--light-purple: #e6d4ff;--primary-green: #68b5ab;--primary-green-dark: #497E77;--light-green: #d4f5e9;--dark-purple: #9675c0;--white: #ffffff;--gray-light: #f8fafc;--gray-dark: #334155}html{scroll-behavior:smooth}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;line-height:1.6;color:var(--gray-dark)}header{background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 2px 20px #0000001a;position:fixed;top:0;width:100%;z-index:1000;transition:all .3s ease}nav{display:flex;align-items:center;padding:1rem 5%;max-width:1400px;margin:0 auto}.logo{font-size:1.8rem;font-weight:700;background:var(--dark-purple);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-right:auto;display:flex;align-items:center;gap:10px}.view-more-link{text-decoration:none;color:var(--primary-green);font-weight:600;transition:all .3s}.nav-links{display:flex;list-style:none;gap:2rem}.nav-links a{text-decoration:none;text-transform:uppercase;color:var(--dark-purple);font-weight:600;transition:all .3s;padding:.5rem 1rem;border-radius:25px;position:relative}.nav-links a:hover,.nav-links a.active{background:var(--primary-green);color:var(--white);transform:translateY(-2px)}.hero{min-height:100vh;background:var(--dark-purple);display:flex;align-items:center;justify-content:center;text-align:center;padding:80px 5% 0;position:relative;overflow:hidden}.hero-content{max-width:800px;z-index:2}.hero h1{font-size:3.5rem;color:var(--white);margin-bottom:1.5rem;font-weight:700;line-height:1.2}.hero-subtitle{font-size:1.3rem;color:var(--white);margin-bottom:2rem;opacity:.9}.hero-description{font-size:1.1rem;color:var(--white);margin-bottom:3rem;line-height:1.8;margin-left:auto;margin-right:auto}.cta-button{background:var(--primary-green);text-transform:uppercase;color:#fff;padding:15px 40px;border:none;border-radius:50px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:all .3s ease;text-decoration:none;display:inline-block;box-shadow:0 10px 30px #b19cd966}.cta-button:hover{transform:translateY(-3px);box-shadow:0 15px 35px #b19cd999;color:#fff}.floating-element{position:absolute;font-size:2rem;opacity:.6;animation:float 6s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(0) rotate(0)}50%{transform:translateY(-20px) rotate(10deg)}}section{padding:80px 5%;margin:0 auto;content-visibility:auto;contain-intrinsic-size:1000px}.section-header{text-align:center;margin-bottom:4rem}.section-title{font-size:2.5rem;color:var(--dark-purple);margin-bottom:1rem;font-weight:700}.section-subtitle{font-size:1.2rem;color:var(--gray-dark);opacity:.8;max-width:600px;margin:0 auto}.groups-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem}.group-card{background:#fff;border-radius:20px;padding:2.5rem;text-align:center;box-shadow:0 10px 40px #0000001a;transition:all .3s ease;border:2px solid transparent;position:relative;overflow:hidden}.group-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(45deg,var(--primary-purple),var(--primary-green))}.group-card:hover{transform:translateY(-10px);box-shadow:0 20px 50px #00000026;border-color:var(--light-purple)}.group-icon{font-size:3rem;margin-bottom:1rem}.group-card h3{color:var(--dark-purple);margin-bottom:1rem;font-size:1.5rem;font-weight:600}.group-card p{color:var(--gray-dark);margin-bottom:1.5rem;line-height:1.6}.age-badge{background:var(--primary-green);text-transform:uppercase;color:#fff;padding:.5rem 1.5rem;border-radius:25px;font-weight:600;font-size:.9rem;text-decoration:none;display:inline-block;transition:background .3s}.age-badge:hover{background:var(--primary-green-dark);color:#fff}.groups-section{max-width:1200px}.fade-up{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .6s ease}footer{background:var(--dark-purple);color:#fff;text-align:center;padding:3rem 5%}.footer-simple{padding:40px 5%;text-align:center;margin-top:60px}.footer-copy{font-size:1rem;margin-bottom:25px;opacity:.9}.footer-links{display:flex;gap:25px;justify-content:center;flex-wrap:wrap}.footer-links a{text-decoration:none;font-size:.95rem;font-weight:500;color:#fff}@media (max-width: 600px){.footer-links{gap:15px}.footer-links a{font-size:.9rem}}.hamburger{display:none;flex-direction:column;cursor:pointer}.hamburger span{width:25px;height:3px;background:var(--primary-purple);margin:3px 0;transition:.3s;border-radius:2px}@media (max-width: 768px){.nav-links{display:none;position:absolute;top:100%;left:0;width:100%;background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);flex-direction:column;padding:2rem;box-shadow:0 5px 20px #0000001a}.nav-links.active,.hamburger{display:flex}.hero h1{font-size:2.5rem}.hero-subtitle{font-size:1.1rem}.section-title{font-size:2rem}.groups-grid,.songs-grid,.books-grid{grid-template-columns:1fr}}.fade-up{opacity:0;transform:translateY(30px);transition:all .6s ease}.fade-up.visible{opacity:1;transform:translateY(0)}.book-cover{height:200px;display:flex;justify-content:center;font-size:1.5rem;position:relative}.books-section{padding:40px 20px;text-align:center}.books-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:25px;margin-top:20px}.book-card{background:#fff;border-radius:18px;padding:18px;box-shadow:0 5px 15px #0000001a;transition:transform .25s ease,box-shadow .25s ease;display:flex;flex-direction:column;align-items:center}.book-card:hover{transform:translateY(-4px);box-shadow:0 8px 18px #00000026}.book-cover{width:100%;max-height:240px;-o-object-fit:cover;object-fit:cover;border-radius:12px;margin-bottom:15px}.book-info-box{text-align:center;margin-bottom:10px}.book-title{color:var(--dark-purple);margin:1rem;font-size:1rem;font-weight:600}.book-author,.book-level{font-size:14px;color:#555}.book-btn{margin-top:auto;background:var(--primary-green);color:#fff;padding:10px 20px;border:none;border-radius:12px;cursor:pointer;font-weight:600;width:100%;transition:background .2s ease}.book-btn:hover{background:var(--primary-green-dark)}.book-modal-box{max-width:480px;padding:25px 28px}.book-modal-image{max-width:250px;max-height:300px;width:100%;border-radius:10px;margin:15px 0;box-shadow:0 5px 15px #0000001f}.book-info{font-size:14px;margin-bottom:10px;color:#444}.book-description{line-height:1.5;color:#333;margin-bottom:20px;font-size:15px}.modal-btn.confirm{display:inline-block;text-align:center}.buy-button{display:inline-block;margin-top:15px;background:var(--primary-green);color:#fff;padding:10px 18px;border-radius:8px;text-decoration:none;transition:.2s}.buy-button:hover{background:var(--primary-green-dark)}@keyframes fadeIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.custom-modal{display:none;position:fixed;z-index:9999;inset:0;background:#0006;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);justify-content:center;align-items:center;padding:20px}.custom-modal-content{background:#fff;width:100%;max-width:420px;border-radius:16px;padding:25px 28px;position:relative;animation:modalFadeIn .25s ease-out;box-shadow:0 8px 25px #00000026}@keyframes modalFadeIn{0%{opacity:0;transform:translateY(15px)}to{opacity:1;transform:translateY(0)}}.custom-modal-close{position:absolute;top:12px;right:15px;font-size:28px;background:none;border:none;cursor:pointer;color:#666}.custom-modal-close:hover{color:#000}.modal-title{font-size:20px;font-weight:700;color:var(--dark-purple);margin-bottom:15px}.modal-group-name{color:#333}.modal-error{background:#fdd;color:#a70000;padding:10px;border-radius:8px;margin-bottom:15px;font-size:14px}.modal-label{display:block;font-size:14px;margin-bottom:6px}.modal-input{width:100%;padding:10px 12px;border-radius:10px;border:1px solid #ccc;font-size:15px}.modal-footer{display:flex;justify-content:space-between;gap:10px;margin-top:20px}.modal-btn{flex:1;padding:10px;border-radius:12px;border:none;font-weight:600;cursor:pointer;transition:.2s ease}.modal-btn.cancel{background:#eee}.modal-btn.cancel:hover{background:#ddd}.modal-btn.confirm{background:var(--primary-green);color:#fff;text-decoration:none}.modal-btn.confirm:hover{background:var(--primary-green-dark)}.alert-error{background:#ffe5e5;color:#b20000;padding:8px 12px;border-radius:6px;margin-bottom:12px;font-size:.9rem}.view-more-btn{display:inline-block;background:var(--primary-green);color:#fff;padding:10px 20px;border-radius:12px;font-weight:600;width:100%;text-decoration:none;transition:background .3s ease;border:none}.view-more-btn:hover{background:var(--primary-green-dark)}.materials-section{padding:80px 5%;max-width:1200px;margin:0 auto}.logout-button{background:var(--primary-purple);color:#fff;border:none;padding:10px 25px;border-radius:25px;font-weight:600;cursor:pointer;transition:all .3s ease}.logout-button:hover{background:var(--dark-purple);transform:translateY(-2px)}.material-group{margin-bottom:3rem}.material-section-title{font-size:1.6rem;color:var(--dark-purple);font-weight:700;margin-bottom:1.5rem}.materials-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem}.material-card{background:#fff;border-radius:15px;box-shadow:0 5px 25px #0000001a;overflow:hidden;transition:transform .3s ease,box-shadow .3s ease;display:flex;flex-direction:column}.material-card:hover{transform:translateY(-6px);box-shadow:0 12px 30px #00000026}.material-content{padding:1.5rem;display:flex;flex-direction:column;height:100%}.material-title{font-size:1.2rem;color:var(--dark-purple);margin-bottom:.5rem;font-weight:600}.material-description{color:var(--gray-dark);opacity:.8;margin-bottom:1rem;font-size:.95rem;line-height:1.5}.material-image{width:100%;border-radius:12px;margin-bottom:1rem;-o-object-fit:cover;object-fit:cover}.material-frame{width:100%;height:200px;border:1px solid #ccc;border-radius:8px;margin-bottom:1rem}.material-video iframe,.material-spotify iframe{width:100%;border-radius:12px;height:250px;margin-bottom:1rem}.material-audio{width:100%;margin-bottom:1rem}.download-button{background:var(--primary-green);color:#fff;text-align:center;padding:10px;border-radius:8px;font-weight:600;text-decoration:none;margin-top:auto;transition:background .3s ease}.download-button:hover{background:var(--primary-green-dark)}@media (max-width: 768px){.material-section-title{font-size:1.3rem;text-align:center}.materials-section{padding:60px 5%}}