body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background-color:#eef2f5;color:#333;margin:0;padding:0;display:flex;justify-content:center;align-items:center;min-height:100vh;overflow:hidden}.hidden{display:none!important}.landing-container{width:100%;height:100vh;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;background-color:#eef2f5;padding:20px;animation:fadeIn .5s ease-in-out}.landing-logo{width:120px;height:auto;margin-bottom:20px;filter:drop-shadow(0 5px 10px rgba(0,0,0,.1))}.landing-content h1{font-size:2.5rem;margin:0 0 10px;font-weight:800;color:#000}.landing-content p{color:#666;margin-bottom:40px;font-size:1rem;max-width:300px;line-height:1.5}.btn-primary{background:#000;color:#fff;border:none;padding:15px 45px;font-size:1.1rem;font-weight:700;border-radius:30px;cursor:pointer;transition:transform .2s,box-shadow .2s;box-shadow:0 10px 20px #0003}.btn-primary:hover{transform:translateY(-2px);background:#333;box-shadow:0 15px 25px #0000004d}.btn-primary:active{transform:translateY(0)}.loading-container{display:flex;flex-direction:column;justify-content:center;align-items:center;height:100vh;width:100%;background-color:#eef2f5;position:absolute;top:0;left:0;z-index:100}.spinner{width:50px;height:50px;border:5px solid #ddd;border-top:5px solid #000;border-radius:50%;animation:spin 1s linear infinite;margin-bottom:20px}.loading-container p{color:#666;font-size:.9rem;font-weight:500}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.app-container{width:100%;max-width:400px;height:90vh;background-color:#fff;border-radius:25px;padding:20px;box-shadow:0 20px 40px #0000001a;box-sizing:border-box;display:flex;flex-direction:column;overflow:hidden;position:relative;animation:slideUp .5s ease-out}header{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px;padding-bottom:10px;border-bottom:2px solid #f0f0f0}header h2{margin:0;font-size:1.5rem;font-weight:800;color:#000}header p{margin:0;font-size:.8rem;color:#888}.btn-icon{background:#000;color:#fff;border:none;width:35px;height:35px;border-radius:50%;font-size:1.2rem;cursor:pointer;transition:transform .3s;display:flex;justify-content:center;align-items:center}.btn-icon:hover{transform:rotate(180deg);background:#333}.crypto-list{flex:1;overflow-y:auto;padding-right:5px;display:flex;flex-direction:column;gap:12px}.crypto-list::-webkit-scrollbar{width:4px}.crypto-list::-webkit-scrollbar-thumb{background-color:#ccc;border-radius:10px}.coin-card{background-color:#000;color:#fff;border-radius:15px;padding:15px;display:flex;align-items:center;justify-content:space-between;box-shadow:0 4px 10px #0000001a;transition:transform .2s}.coin-card:hover{transform:translateY(-2px);background-color:#222}.coin-rank{width:30px;text-align:center;font-size:1.1rem;font-weight:700;color:#666;margin-right:10px}.coin-info{flex:1}.coin-name{display:block;font-size:.75rem;color:#aaa;margin-bottom:2px}.coin-symbol{font-size:1.1rem;font-weight:800;text-transform:uppercase;letter-spacing:.5px}.coin-price-box{text-align:right}.currency-label{display:block;font-size:.7rem;color:#aaa;margin-bottom:2px}.coin-price.white-theme{color:#fff;font-size:1.1rem;font-weight:700}.btn-small-back{background:transparent;border:1px solid #ddd;color:#666;padding:10px 20px;border-radius:20px;cursor:pointer;font-size:.9rem;margin-top:15px;width:100%;transition:all .2s}.btn-small-back:hover{background:#f1f1f1;color:#333;border-color:#ccc}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}