:root{
    --bg:#0b1020;
    --panel:rgba(255,255,255,0.06);
    --border:rgba(255,255,255,0.12);
    --text:#f8fafc;
    --muted:#94a3b8;
    --accent:#8b5cf6;
    --accent-2:#06b6d4;
    --success:#22c55e;
    --radius:24px;
    --shadow:0 10px 40px rgba(0,0,0,.35);
}

*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

body{
    min-height:100vh;
    font-family:"Inter",sans-serif;
    background:
        radial-gradient(circle at top left,#312e81 0%,transparent 30%),
        radial-gradient(circle at bottom right,#0ea5e9 0%,transparent 30%),
        var(--bg);
    color:var(--text);
    padding:40px;
    overflow-x:hidden;
}

body::before{
    content:"";
    position:fixed;
    inset:0;
    backdrop-filter:blur(100px);
    z-index:-1;
}

.app{
    max-width:1600px;
    margin:auto;
}

.header{
    margin-bottom:30px;
}

.header h1{
    font-size:clamp(2.5rem,5vw,5rem);
    font-weight:800;
    letter-spacing:-3px;
    background:linear-gradient(90deg,#fff,#8b5cf6,#06b6d4);
    -webkit-background-clip:text;
    color:transparent;
}

.header a { 
    position: fixed;
    top: 16px;
    right: 20px;
    -webkit-text-decoration: none;
    -moz-text-decoration: none;
    text-decoration: none;
    color: #ffffff;
    font-size: 16px;
    z-index: 10;
}

.header p{
    margin-top:10px;
    color:var(--muted);
    font-size:1.05rem;
}

.grid{
    display:grid;
    grid-template-columns:420px 1fr;
    gap:24px;
}

.panel{
    background:var(--panel);
    border:1px solid var(--border);
    border-radius:var(--radius);
    box-shadow:var(--shadow);
    backdrop-filter:blur(20px);
}

.controls{
    padding:24px;
    display:flex;
    flex-direction:column;
    gap:18px;
}

.section-title{
    font-size:.85rem;
    text-transform:uppercase;
    letter-spacing:2px;
    color:#cbd5e1;
    margin-bottom:5px;
}

.form-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:14px;
}

.control{
    display:flex;
    flex-direction:column;
    gap:8px;
}

.control.full{
    grid-column:1/-1;
}

label{
    font-size:.9rem;
    color:#cbd5e1;
}

input,
select,
textarea{
    width:100%;
    border:none;
    outline:none;
    background:rgba(255,255,255,0.05);
    border:1px solid rgba(255,255,255,0.08);
    color:white;
    border-radius:16px;
    padding:14px;
    font-size:.95rem;
    transition:.25s ease;
}

input:focus,
select:focus,
textarea:focus{
    border-color:var(--accent);
    box-shadow:0 0 0 4px rgba(139,92,246,.15);
    transform:translateY(-1px);
}

textarea{
    min-height:300px;
    resize:vertical;
    font-family:monospace;
    line-height:1.5;
}

button{
    border:none;
    outline:none;
    padding:16px 24px;
    border-radius:18px;
    cursor:pointer;
    font-weight:700;
    font-size:1rem;
    color:white;
    background:linear-gradient(135deg,var(--accent),var(--accent-2));
    transition:.3s ease;
    position:relative;
    overflow:hidden;
}

button:hover{
    transform:translateY(-3px);
    box-shadow:
        0 10px 25px rgba(139,92,246,.35),
        0 10px 25px rgba(6,182,212,.2);
}

.right{
    display:flex;
    flex-direction:column;
    gap:24px;
}

.preview{
    position:relative;
    height:420px;
    overflow:hidden;
    display:flex;
    align-items:center;
    justify-content:center;
}

.preview::before{
    content:"";
    position:absolute;
    inset:0;
    background-image:
        linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
        linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
    background-size:40px 40px;
}

.stage{
    width:100%;
    height:100%;
    position:relative;
    display:flex;
    align-items:center;
    justify-content:center;
}

.animated-box{
    width:110px;
    height:110px;
    border-radius:30px;
    background:
        linear-gradient(135deg,#8b5cf6,#06b6d4);
    box-shadow:
        0 20px 40px rgba(139,92,246,.4),
        inset 0 0 25px rgba(255,255,255,.25);
}

.code-panel{
    padding:24px;
}

.code-header{
    display:flex;
    justify-content:space-between;
    align-items:center;
    margin-bottom:18px;
}

.copy-btn{
    padding:10px 16px;
    font-size:.85rem;
    border-radius:12px;
    background:rgba(255,255,255,.08);
}

.copy-btn:hover{
    background:rgba(255,255,255,.15);
    box-shadow:none;
}

pre{
    background:#020617;
    border-radius:20px;
    padding:24px;
    overflow:auto;
    color:#dbeafe;
    line-height:1.6;
    border:1px solid rgba(255,255,255,.08);
}

.glow{
    position:absolute;
    width:500px;
    height:500px;
    background:radial-gradient(circle,rgba(139,92,246,.2),transparent 70%);
    filter:blur(50px);
    z-index:-1;
}

@media(max-width:1100px){
    .grid{
        grid-template-columns:1fr;
    }

    .form-grid{
        grid-template-columns:1fr;
    }
}