body{
    margin:0;
    overflow:hidden;
    background:#0b0b0b;
    font-family:Arial, sans-serif;
}

#viewport{
    width:100vw;
    height:100vh;
    overflow:hidden;
    position:relative;
}

#map{
    position:absolute;
    width:2700px;
    height:2000px;
    transform-origin:0 0;
}

/* PANEL DE RUTA */
#routePanel{
    position:fixed;
    top:20px;
    left:20px;
    width:340px;
    background:rgba(10,10,10,0.92);
    border:1px solid #444;
    border-radius:12px;
    padding:14px;
    color:#fff;
    z-index:30;
    box-shadow:0 0 18px rgba(0,0,0,0.35);
}

#routePanel h3{
    margin:0 0 10px 0;
    font-size:16px;
}

.route-row{
    display:flex;
    flex-direction:column;
    gap:6px;
    margin-bottom:10px;
}

.route-row label{
    font-size:12px;
    color:#cfcfcf;
}

.route-row select,
.route-row input{
    width:100%;
    padding:8px 10px;
    border-radius:8px;
    border:1px solid #555;
    background:#181818;
    color:#fff;
    font-size:13px;
    box-sizing:border-box;
}

.route-row input.invalid{
    border-color:#ff5c5c;
    box-shadow:0 0 0 1px #ff5c5c inset;
}

.route-actions{
    display:flex;
    gap:8px;
    margin-top:10px;
}

.route-actions button{
    flex:1;
    padding:9px 10px;
    border:none;
    border-radius:8px;
    cursor:pointer;
    color:#fff;
    background:#2b2b2b;
}

.route-actions button:hover{
    background:#3b3b3b;
}

#routeResult{
    margin-top:12px;
    font-size:13px;
    color:#ddd;
    line-height:1.5;
}

/* NODOS */
.node{
    position:absolute;
    width:26px;
    height:26px;
    border-radius:50%;
    background:#222;
    border:2px solid #aaa;
    color:#fff;
    font-size:10px;
    text-align:center;
    line-height:26px;
    cursor:pointer;
    transform:translate(-50%,-50%);
    z-index:3;
}

.node:hover::after{
    content: attr(data-name);
    position:absolute;
    bottom:30px;
    left:-70px;
    width:170px;
    text-align:center;
    font-size:11px;
    background:#111;
    padding:4px 6px;
    border:1px solid #444;
    z-index:50;
    white-space:normal;
}

.node.selected{
    border-color:#ffd54a;
    box-shadow:0 0 10px #ffd54a;
    background:#333;
}

/* NODOS RED FLÚ */
.node.flu{
    background:#1f5f2a;
    border-color:#6dff88;
    box-shadow:0 0 8px rgba(109,255,136,0.45);
}

.node.flu-hub{
    background:#0b3d2e;
    border:2px solid #00ff9c;
    box-shadow:0 0 12px #00ff9c;
}

/* ETIQUETAS DE CONEXIÓN */
.conn-label{
    position:absolute;
    transform:translate(-50%,-100%);
    font-size:11px;
    color:#fff;
    background:rgba(17,17,17,0.92);
    border:1px solid #555;
    padding:3px 6px;
    border-radius:6px;
    white-space:nowrap;
    z-index:4;
    pointer-events:none;
}

/* LINEAS */
svg{
    position:absolute;
    width:100%;
    height:100%;
    pointer-events:none;
    z-index:1;
}

line{
    stroke:#cfcfcf;
    stroke-width:2;
    opacity:0.7;
}

.flu-line{
    stroke:#38ff8c;
    stroke-width:2.5;
    stroke-dasharray:10 8;
    opacity:0.18;
}

.flu-line.active{
    opacity:1;
    stroke:#7dffb2;
    stroke-width:5;
}

/* MODAL SIMPLE */
#modal{
    position:fixed;
    bottom:20px;
    right:20px;
    width:400px;
    height:250px;
    background:#000c;
    opacity:0;
    transition:.3s;
    z-index:20;
    pointer-events:none;
}

#modal.active{
    opacity:1;
    pointer-events:auto;
}

#modal img{
    width:100%;
    height:100%;
    object-fit:cover;
    background:#000;
}

#modal.full{
    width:80vw;
    height:80vh;
    top:50%;
    left:50%;
    bottom:auto;
    right:auto;
    transform:translate(-50%,-50%);
}

#modal.full img{
    object-fit:contain;
}

#closeBtn{
    position:absolute;
    top:5px;
    right:10px;
    color:#fff;
    cursor:pointer;
    z-index:21;
    font-size:18px;
}

/* MODAL DE RUTA */
#routeModal{
    position:fixed;
    inset:0;
    background:rgba(0,0,0,0.82);
    display:none;
    align-items:center;
    justify-content:center;
    z-index:60;
}

#routeModal.active{
    display:flex;
}

#routeModalContent{
    width:min(1100px, 92vw);
    max-height:85vh;
    overflow:auto;
    background:#101010;
    border:1px solid #444;
    border-radius:14px;
    padding:18px;
    color:#fff;
    position:relative;
}

#routeModalClose{
    position:absolute;
    top:12px;
    right:14px;
    font-size:20px;
    cursor:pointer;
    color:#fff;
}

#routeModalContent h2{
    margin:0 0 12px 0;
    font-size:20px;
}

#routeSequence{
    margin:0 0 16px 0;
    color:#cfcfcf;
    font-size:13px;
    line-height:1.5;
}

.routeGallery{
    display:grid;
    grid-template-columns:repeat(auto-fit, minmax(220px, 1fr));
    gap:18px;
    padding:8px;
}

.routeCard{
    background:#171717;
    border:1px solid #333;
    border-radius:12px;
    overflow:hidden;
    position:relative;
}

.routeCard img{
    width:100%;
    height:170px;
    object-fit:cover;
    display:block;
    background:#000;
    cursor:pointer;
}

.routeCard .meta{
    padding:10px;
    background:#171717;
}

.routeCard .meta strong{
    display:block;
    font-size:14px;
    margin-bottom:4px;
}

.routeCard .meta span{
    font-size:12px;
    color:#bbb;
}

/* PREVIEW GRANDE POR HOVER */
#hoverPreview{
    position:fixed;
    inset:0;
    display:none;
    align-items:center;
    justify-content:center;
    background:rgba(0,0,0,0.78);
    z-index:9999;
    pointer-events:none;
}

#hoverPreview.active{
    display:flex;
}

#hoverPreviewBox{
    width:min(88vw, 1500px);
    height:min(88vh, 900px);
    background:#050505;
    border:1px solid rgba(255,255,255,0.12);
    border-radius:18px;
    box-shadow:0 20px 60px rgba(0,0,0,0.65);
    overflow:hidden;
    display:flex;
    flex-direction:column;
}

#hoverPreviewImg{
    flex:1;
    width:100%;
    height:100%;
    object-fit:contain;
    background:#000;
}

#hoverPreviewCaption{
    padding:14px 18px;
    font-size:18px;
    font-weight:600;
    color:#fff;
    background:rgba(18,18,18,0.96);
    border-top:1px solid rgba(255,255,255,0.08);
}

/* PANEL LATERAL */
#infoPanel{
    position:fixed;
    top:20px;
    right:20px;
    width:310px;
    max-height:50vh;
    overflow:auto;
    background:rgba(10,10,10,0.9);
    border:1px solid #444;
    border-radius:10px;
    padding:12px;
    color:#fff;
    z-index:15;
}

#infoPanel h3{
    margin:0 0 8px 0;
    font-size:16px;
}

#infoPanel .sub{
    margin:0 0 10px 0;
    font-size:12px;
    color:#bbb;
}

#infoPanel ul{
    margin:0;
    padding-left:18px;
}

#infoPanel li{
    margin:4px 0;
    font-size:13px;
}

#clearSelection{
    margin-top:10px;
    width:100%;
    padding:8px 10px;
    border:none;
    border-radius:8px;
    background:#2b2b2b;
    color:#fff;
    cursor:pointer;
}

#clearSelection:hover{
    background:#3b3b3b;
}

.node.restricted{
    background:#3a0000;
    border-color:#ff3b3b;
    box-shadow:0 0 8px rgba(255,0,0,0.6);
}

.node.restricted::before{
    content:"⛔";
    position:absolute;
    top:-12px;
    right:-12px;
    font-size:13px;
    line-height:1;
    pointer-events:none;
}