:root{--sui-blue: #4DA2FF;--sui-cyan: #00D1FF;--sui-bg: #010915;--sui-card: rgba(255, 255, 255, .05);--sui-glass-border: rgba(255, 255, 255, .1);--sui-text: #E0E6ED;--sui-text-dim: #94A3B8;--font-main: "Outfit", sans-serif}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-main);background-color:var(--sui-bg);background-image:radial-gradient(circle at 10% 20%,rgba(77,162,255,.1) 0%,transparent 40%),radial-gradient(circle at 90% 80%,rgba(0,209,255,.1) 0%,transparent 40%);color:var(--sui-text);min-height:100vh;display:flex;justify-content:center;align-items:center;overflow-x:hidden}.header-top-nav{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}.logo-icon-small{width:32px;height:32px;transition:transform .3s ease}.logo-link:hover .logo-icon-small{transform:scale(1.1)}.lang-switcher-container{display:flex;gap:10px}.lang-switcher-container button{background:none;border:none;font-size:1.2rem;cursor:pointer;opacity:.4;transition:all .3s ease;filter:grayscale(100%);padding:0}.lang-switcher-container button.active{opacity:1;filter:grayscale(0%);transform:scale(1.2)}.glass-card{background:var(--sui-card);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--sui-glass-border);border-radius:24px;padding:2.5rem;width:100%;max-width:500px;box-shadow:0 25px 50px -12px #00000080;animation:fadeIn .6s ease-out;margin:20px auto}@media(max-width:600px){.glass-card{padding:1.5rem;border-radius:16px;margin:10px;width:auto}h1{font-size:1.5rem}.result-value{font-size:1.8rem}}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}h1{font-size:2rem;font-weight:700;margin-bottom:.5rem;background:linear-gradient(to right,var(--sui-blue),var(--sui-cyan));-webkit-background-clip:text;-webkit-text-fill-color:transparent;text-align:center}p.subtitle{color:var(--sui-text-dim);text-align:center;margin-bottom:2rem;font-size:.95rem}.input-group{margin-bottom:1.5rem}label{display:block;margin-bottom:.5rem;color:var(--sui-text-dim);font-size:.85rem;text-transform:uppercase;letter-spacing:.05em}input,select{width:100%;background:#ffffff08;border:1px solid var(--sui-glass-border);border-radius:12px;padding:1rem;color:var(--sui-text);font-family:var(--font-main);font-size:1.1rem;transition:all .3s ease;outline:none}input:focus,select:focus{border-color:var(--sui-blue);box-shadow:0 0 0 4px #4da2ff26;background:#ffffff0d}.converter-grid{display:grid;grid-template-columns:1fr auto 1fr;align-items:end;gap:1rem;margin-bottom:2rem}.swap-btn{background:var(--sui-card);border:1px solid var(--sui-glass-border);border-radius:50%;width:44px;height:44px;display:flex;justify-content:center;align-items:center;cursor:pointer;color:var(--sui-cyan);transition:all .3s ease;margin-bottom:.25rem}.swap-btn:hover{transform:rotate(180deg);background:#ffffff1a;border-color:var(--sui-cyan)}.result-container{margin-top:2rem;padding:1.5rem;background:#4da2ff0d;border-radius:16px;text-align:center;border:1px dashed rgba(77,162,255,.3)}.result-value{font-size:2.5rem;font-weight:800;color:var(--sui-cyan);display:block;margin:.5rem 0}.result-info{font-size:.9rem;color:var(--sui-text-dim)}.footer{margin-top:2rem;text-align:center;font-size:.8rem;color:var(--sui-text-dim)}.footer a{color:var(--sui-blue);text-decoration:none}input::-webkit-outer-spin-button,input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}input[type=number]{-moz-appearance:textfield}.app-container{width:100%;display:flex;justify-content:center;padding:20px}