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

:root{
    --bg:#0f172a;
    --panel:#111827;
    --card:#1e293b;
    --soft:#334155;
    --text:#f8fafc;
    --muted:#94a3b8;
    --accent:#8b5cf6;
    --radius:20px;
}

body{
    font-family:'Inter',sans-serif;
    background:
    radial-gradient(circle at top left,#312e81 0%,transparent 30%),
    radial-gradient(circle at bottom right,#0f766e 0%,transparent 30%),
    var(--bg);
    min-height:100vh;
    color:var(--text);
}

.app{
    display:grid;
    grid-template-columns:350px 1fr;
    min-height:100vh;
}

/* SIDEBAR */

.sidebar{
    background:rgba(15,23,42,.9);
    border-right:1px solid rgba(255,255,255,.08);
    backdrop-filter:blur(12px);
    padding:24px;
    overflow:auto;
}

.logo{
    font-size:28px;
    font-weight:800;
    margin-bottom:24px;
    background:linear-gradient(to right,#a78bfa,#22d3ee);
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
}

.nav{
    display:flex;
    flex-direction:column;
    gap:10px;
    margin-bottom:30px;
}

.nav button{
    border:none;
    background:#172033;
    color:#cbd5e1;
    padding:14px 16px;
    border-radius:14px;
    text-align:left;
    font-size:15px;
    cursor:pointer;
    transition:.25s;
}

.nav button.active,
.nav button:hover{
    background:linear-gradient(135deg,#7c3aed,#06b6d4);
    color:white;
    transform:translateY(-1px);
}

.panel{
    display:none;
    animation:fade .25s ease;
}

.panel.active{
    display:block;
}

@keyframes fade{
    from{
        opacity:0;
        transform:translateY(8px);
    }
    to{
        opacity:1;
        transform:translateY(0);
    }
}

.section-title{
    margin:22px 0 14px;
    font-size:14px;
    text-transform:uppercase;
    letter-spacing:1px;
    color:#94a3b8;
}

.field{
    margin-bottom:14px;
}

.field label{
    display:block;
    margin-bottom:8px;
    font-size:13px;
    color:#cbd5e1;
}

.field input,
.field textarea,
.field select{
    width:100%;
    border:none;
    outline:none;
    background:#1e293b;
    color:white;
    padding:12px;
    border-radius:12px;
    font-size:14px;
}

.field textarea{
    min-height:90px;
    resize:vertical;
}

.row{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:10px;
}

.presets{
    display:grid;
    gap:12px;
}

.preset{
    padding:14px;
    border-radius:16px;
    background:#1e293b;
    border:1px solid rgba(255,255,255,.05);
    cursor:pointer;
    transition:.25s;
}

.preset:hover{
    transform:translateY(-3px);
    background:#273449;
}

/* MAIN */

.main{
    padding:26px;
    overflow:auto;
}

.topbar{
    display:flex;
    justify-content:space-between;
    align-items:center;
    margin-bottom:24px;
}

.topbar h1{
    font-size:34px;
    font-weight:800;
}

.live{
    padding:10px 16px;
    border-radius:999px;
    background:rgba(34,197,94,.18);
    color:#4ade80;
    font-size:14px;
    border:1px solid rgba(34,197,94,.2);
}

.preview-card,
.code-card{
    background:rgba(17,24,39,.82);
    border:1px solid rgba(255,255,255,.06);
    border-radius:24px;
    padding:24px;
    backdrop-filter:blur(10px);
    margin-bottom:24px;
}

.preview-title {
    font-size:20px;
    margin-bottom:20px;
    font-weight:700;
}

.preview-title a {
    float: right;
    -webkit-text-decoration: none;
    -moz-text-decoration: none;
    text-decoration: none;
    color: #ffffff;
    font-size: 16px;
    z-index: 10;
}

#previewArea{
    border-radius:20px;
    overflow:hidden;
    border:1px solid rgba(255,255,255,.08);
}

.code-box{
    width:100%;
    min-height:420px;
    background:#020617;
    color:#67e8f9;
    border:none;
    border-radius:18px;
    padding:20px;
    resize:vertical;
    font-family:monospace;
    line-height:1.5;
    font-size:13px;
}

.copy-btn{
    margin-top:14px;
    padding:12px 18px;
    border:none;
    border-radius:14px;
    cursor:pointer;
    background:linear-gradient(to right,#8b5cf6,#06b6d4);
    color:white;
    font-weight:700;
}

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

    .sidebar{
        border-right:none;
        border-bottom:1px solid rgba(255,255,255,.08);
    }
}