:root{
    --bg-0:#080a10;
    --bg-1:#0d1119;
    --surface:#131826;
    --surface-2:#1a2032;
    --line:#232a3d;
    --blue:#2f6fff;
    --blue-soft:#1e3a8a;
    --cyan:#22d3ee;
    --text-0:#eef1f7;
    --text-1:#9aa3b8;
    --text-2:#7885a3;
    --green:#22c55e;
    --amber:#f5a623;
    --red:#f04545;
    --radius:14px;
    --mono: 'JetBrains Mono', 'Courier New', monospace;
    --disp: 'Space Grotesk', 'Segoe UI', sans-serif;
    --body: 'Inter', 'Segoe UI', sans-serif;
  }

  *{box-sizing:border-box; margin:0; padding:0;}
  html,body{height:100%;}
  body{
    background:var(--bg-0);
    color:var(--text-0);
    font-family:var(--body);
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  #app{min-height:100vh; position:relative;}
  a{color:inherit;}
  button{font-family:inherit; cursor:pointer;}
  ::selection{background:var(--blue-soft); color:#fff;}

  /* ---------- utility ---------- */
  .hidden{display:none !important;}
  .view{min-height:100vh; width:100%;}
  .container{max-width:1080px; margin:0 auto; padding:0 20px;}
  .eyebrow{
    font-family:var(--mono); font-size:11px; letter-spacing:.14em; text-transform:uppercase;
    color:var(--cyan); display:flex; align-items:center; gap:8px;
  }
  .eyebrow::before{content:''; width:6px; height:6px; border-radius:50%; background:var(--cyan); box-shadow:0 0 8px var(--cyan);}
  .btn{
    border:none; border-radius:10px; padding:13px 20px; font-weight:600; font-size:14.5px;
    transition:transform .15s ease, box-shadow .15s ease, background .15s ease; display:inline-flex; align-items:center; justify-content:center; gap:8px;
  }
  .btn:active{transform:scale(.98);}
  .btn-primary{background:linear-gradient(135deg, var(--blue), #1550d6); color:#fff; box-shadow:0 8px 24px -8px rgba(47,111,255,.55);}
  .btn-primary:hover{box-shadow:0 10px 28px -6px rgba(47,111,255,.7);}
  .btn-ghost{background:transparent; color:var(--text-1); border:1px solid var(--line);}
  .btn-ghost:hover{color:var(--text-0); border-color:var(--blue);}
  .btn-danger{background:transparent; color:var(--red); border:1px solid rgba(240,69,69,.35);}
  .btn-block{width:100%;}
  .btn-sm{padding:8px 14px; font-size:13px; border-radius:8px;}
  .field{margin-bottom:16px;}
  .field label{display:block; font-size:12.5px; color:var(--text-1); margin-bottom:7px; font-weight:500;}
  .field input, .field select, .field textarea{
    width:100%; background:var(--bg-1); border:1px solid var(--line); border-radius:9px;
    padding:12px 14px; color:var(--text-0); font-size:14.5px; font-family:inherit; outline:none;
    transition:border-color .15s ease, box-shadow .15s ease;
  }
  .field textarea{resize:vertical; min-height:80px;}
  .field input:focus, .field select:focus, .field textarea:focus{border-color:var(--blue); box-shadow:0 0 0 3px rgba(47,111,255,.18);}
  .field input:focus-visible, .field select:focus-visible, button:focus-visible{outline:2px solid var(--cyan); outline-offset:2px;}
  .badge{font-family:var(--mono); font-size:10.5px; letter-spacing:.06em; padding:4px 9px; border-radius:100px; text-transform:uppercase; font-weight:600;}
  .badge-active{background:rgba(34,197,94,.12); color:var(--green); border:1px solid rgba(34,197,94,.3);}
  .badge-soon{background:rgba(245,166,35,.12); color:var(--amber); border:1px solid rgba(245,166,35,.3);}
  .badge-archived{background:rgba(148,163,184,.14); color:var(--text-2); border:1px solid rgba(148,163,184,.3);}
  .badge-rejected{background:rgba(239,68,68,.12); color:#f16565; border:1px solid rgba(239,68,68,.3);}
  .toast{
    position:fixed; bottom:24px; left:50%; transform:translateX(-50%) translateY(20px);
    background:var(--surface-2); border:1px solid var(--line); padding:13px 22px; border-radius:10px;
    font-size:13.5px; color:var(--text-0); opacity:0; transition:all .25s ease; z-index:999; pointer-events:none;
    box-shadow:0 12px 30px -8px rgba(0,0,0,.6);
  }
  .toast.show{opacity:1; transform:translateX(-50%) translateY(0);}

  /* ---------- view transitions ---------- */
  .view.view-animate{ animation: viewFadeIn .38s cubic-bezier(.16,.84,.44,1); }
  @keyframes viewFadeIn{ from{opacity:0; transform:translateY(14px);} to{opacity:1; transform:translateY(0);} }
  @media (prefers-reduced-motion: reduce){ .view.view-animate{animation:none;} }

  /* ---------- admin panel switch transitions ---------- */
  .admin-panel.panel-animate{ animation: panelFadeIn .3s ease; }
  @keyframes panelFadeIn{ from{opacity:0; transform:translateX(10px);} to{opacity:1; transform:translateX(0);} }
  @media (prefers-reduced-motion: reduce){ .admin-panel.panel-animate{animation:none;} }

  /* ---------- agent card stagger ---------- */
  .agent-card{ animation: cardIn .4s cubic-bezier(.16,.84,.44,1) backwards; }
  @keyframes cardIn{ from{opacity:0; transform:translateY(16px) scale(.98);} to{opacity:1; transform:translateY(0) scale(1);} }
  @media (prefers-reduced-motion: reduce){ .agent-card{animation:none;} }

  /* ---------- calculator drawer ---------- */
  .calc-backdrop{
    position:fixed; inset:0; background:rgba(4,6,12,.6); backdrop-filter:blur(2px); z-index:150;
    opacity:0; pointer-events:none; transition:opacity .32s ease;
  }
  .calc-backdrop.show{ opacity:1; pointer-events:auto; }
  #view-calculator.calc-drawer{
    position:fixed; top:0; right:0; height:100vh; width:min(460px, 92vw);
    background:var(--bg-0); border-left:1px solid var(--line); z-index:160;
    transform:translateX(100%); transition:transform .38s cubic-bezier(.16,.84,.44,1);
    overflow-y:auto; box-shadow:-40px 0 70px -20px rgba(0,0,0,.65); min-height:100vh;
  }
  #view-calculator.calc-drawer.calc-open{ transform:translateX(0); }
  @media (prefers-reduced-motion: reduce){ #view-calculator.calc-drawer, .calc-backdrop{ transition:none; } }

  /* ---------- vista fundador: la calculadora se centra en pantalla en vez de anclarse al borde ---------- */
  #view-calculator.calc-drawer.role-admin{
    top:50%; left:50%; right:auto; bottom:auto; height:auto; max-height:86vh; width:min(560px, 92vw);
    border:1px solid var(--line); border-radius:var(--radius); box-shadow:0 40px 90px -20px rgba(0,0,0,.7);
    transform:translate(-50%,-50%) scale(.96); opacity:0; pointer-events:none;
    transition:transform .32s cubic-bezier(.16,.84,.44,1), opacity .28s ease;
  }
  #view-calculator.calc-drawer.role-admin.calc-open{
    transform:translate(-50%,-50%) scale(1); opacity:1; pointer-events:auto;
  }
  @media (prefers-reduced-motion: reduce){ #view-calculator.calc-drawer.role-admin{ transition:none; } }

  /* ---------- mis solicitudes drawer (cliente) ---------- */
  #view-myrequests.calc-drawer{
    position:fixed; top:0; right:0; height:100vh; width:min(460px, 92vw);
    background:var(--bg-0); border-left:1px solid var(--line); z-index:160;
    transform:translateX(100%); transition:transform .38s cubic-bezier(.16,.84,.44,1);
    overflow-y:auto; box-shadow:-40px 0 70px -20px rgba(0,0,0,.65); min-height:100vh;
  }
  #view-myrequests.calc-drawer.calc-open{ transform:translateX(0); }
  @media (prefers-reduced-motion: reduce){ #view-myrequests.calc-drawer{ transition:none; } }

  /* ---------- muro de eventos/mensajes por solicitud ---------- */
  .event-wall{ margin-top:14px; display:flex; flex-direction:column; gap:8px; max-height:280px; overflow-y:auto; padding-right:2px; }
  .event-bubble{ background:var(--bg-1); border:1px solid var(--line); border-radius:10px; padding:8px 10px; font-size:12.5px; }
  .event-bubble.mine{ background:rgba(47,111,255,.10); border-color:rgba(47,111,255,.3); }
  .event-bubble.type-quote{ border-color:rgba(34,197,94,.35); }
  .event-meta{ font-family:var(--mono); font-size:10.5px; color:var(--text-2); margin-bottom:3px; }
  .event-body{ color:var(--text-1); line-height:1.5; word-break:break-word; }
  .event-compose{ display:flex; flex-direction:column; gap:8px; margin-top:12px; }
  .event-compose textarea{ min-height:60px; }

  /* ---------- preview banner ---------- */
  .preview-banner{
    position:fixed; top:14px; left:50%; transform:translateX(-50%) translateY(-140%);
    z-index:300; background:linear-gradient(135deg, var(--amber), #d98d1a); color:#241a05;
    padding:10px 12px 10px 18px; border-radius:100px; display:flex; align-items:center; gap:14px;
    font-size:13px; font-weight:600; box-shadow:0 14px 30px -10px rgba(245,166,35,.5);
    transition:transform .35s cubic-bezier(.16,.84,.44,1); pointer-events:none;
  }
  .preview-banner.active{ transform:translateX(-50%) translateY(0); pointer-events:auto; }
  .preview-banner .btn-primary{ background:#241a05; color:#fff; box-shadow:none; }
  @media (max-width:480px){ .preview-banner{ font-size:11.5px; padding:8px 8px 8px 14px; gap:8px; } }

  /* ---------- node network bg ---------- */
  .node-bg{position:absolute; inset:0; overflow:hidden; z-index:0; opacity:.55;}
  .node-bg svg{width:100%; height:100%;}
  .node-bg circle{animation:pulse 4s ease-in-out infinite;}
  @keyframes pulse{0%,100%{opacity:.35;} 50%{opacity:1;}}
  @media (prefers-reduced-motion: reduce){ .node-bg circle{animation:none;} }

  /* ============ LOGIN ============ */
  #view-login{
    display:flex; flex-direction:column; align-items:center; justify-content:center; padding:40px 20px; position:relative;
    background:
      radial-gradient(60% 50% at 50% 0%, rgba(47,111,255,.16), transparent 70%),
      var(--bg-0);
  }
  .login-card{
    position:relative; z-index:1; width:100%; max-width:400px;
    background:var(--surface); border:1px solid var(--line); border-radius:18px; padding:34px 30px;
    box-shadow:0 30px 60px -20px rgba(0,0,0,.6);
  }
  .brand{display:flex; align-items:center; gap:10px; justify-content:center; margin-bottom:6px;}
  .brand-mark{width:34px; height:34px; border-radius:9px; background:linear-gradient(135deg,var(--blue),var(--cyan)); display:flex; align-items:center; justify-content:center; font-family:var(--disp); font-weight:700; color:#04101f; font-size:16px;}
  .brand-name{font-family:var(--disp); font-weight:700; font-size:21px; letter-spacing:-.01em;}
  .login-sub{text-align:center; color:var(--text-1); font-size:13.5px; margin-bottom:26px;}
  .auth-tabs{display:flex; background:var(--bg-1); border:1px solid var(--line); border-radius:10px; padding:4px; margin:18px 0 16px; gap:4px;}
  .auth-tab{flex:1; background:none; border:none; padding:9px 0; border-radius:7px; font-size:13px; font-weight:600; color:var(--text-2);}
  .auth-tab.active{background:var(--surface-2); color:var(--text-0); box-shadow:0 4px 12px -4px rgba(0,0,0,.4);}
  .login-toggle{
    display:flex; text-align:center; margin-top:6px; font-size:12.5px; color:var(--text-2);
  }
  .login-toggle button{background:none; border:none; color:var(--text-2); font-size:12.5px; text-decoration:underline; text-underline-offset:3px;}
  .login-toggle button:hover{color:var(--cyan);}
  .admin-extra{
    margin-top:2px; padding-top:14px; border-top:1px dashed var(--line);
  }
  .admin-note{font-family:var(--mono); font-size:11px; color:var(--amber); margin-bottom:14px; display:flex; gap:6px; align-items:flex-start;}
  .error-msg{color:var(--red); font-size:12.5px; margin-top:-8px; margin-bottom:14px; display:none;}

  /* ============ CLIENT DASHBOARD ============ */
  #view-dashboard{background:var(--bg-0);}
  .topbar{
    position:sticky; top:0; z-index:20; background:rgba(8,10,16,.85); backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line); padding:16px 0;
  }
  .topbar-row{display:flex; align-items:center; justify-content:space-between;}
  .top-actions{display:flex; gap:10px; align-items:center;}
  .icon-btn{
    width:38px; height:38px; border-radius:10px; background:var(--surface); border:1px solid var(--line);
    display:flex; align-items:center; justify-content:center; color:var(--text-1); transition:all .15s;
  }
  .icon-btn:hover{color:var(--cyan); border-color:var(--cyan);}

  .hero{padding:56px 0 40px; position:relative; overflow:hidden;}
  .hero-grid{display:grid; grid-template-columns:1.3fr 1fr; gap:40px; align-items:center; position:relative; z-index:1;}
  @media (max-width:760px){.hero-grid{grid-template-columns:1fr;}}
  .hero h1{font-family:var(--disp); font-size:clamp(28px,4.5vw,42px); line-height:1.08; letter-spacing:-.02em; margin:14px 0 16px;}
  .hero h1 span{color:var(--cyan);}
  .hero p{color:var(--text-1); font-size:15.5px; line-height:1.65; max-width:480px;}
  .hero-stats{display:flex; gap:28px; margin-top:26px; flex-wrap:wrap;}
  .stat b{font-family:var(--mono); font-size:22px; color:var(--text-0); display:block;}
  .stat span{font-size:11.5px; color:var(--text-2); text-transform:uppercase; letter-spacing:.06em;}
  .hero-visual{position:relative; height:280px;}

  .section-head{display:flex; align-items:baseline; justify-content:space-between; margin:8px 0 22px; gap:12px; flex-wrap:wrap;}
  .section-head h2{font-family:var(--disp); font-size:22px; letter-spacing:-.01em;}
  .section-head p{color:var(--text-2); font-size:13.5px;}

  .agent-grid{display:grid; grid-template-columns:repeat(auto-fill, minmax(250px,1fr)); gap:16px; padding:6px 0 60px;}
  .agent-card{
    background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); padding:22px;
    display:flex; flex-direction:column; gap:14px; cursor:pointer; transition:all .18s ease; position:relative; overflow:hidden;
  }
  .agent-card:hover{border-color:var(--blue); transform:translateY(-3px); box-shadow:0 16px 34px -14px rgba(47,111,255,.4);}
  .agent-card::after{
    content:''; position:absolute; top:0; right:0; width:110px; height:110px;
    background:radial-gradient(circle, rgba(47,111,255,.14), transparent 70%); pointer-events:none;
  }
  .agent-icon{
    width:44px; height:44px; border-radius:11px; background:var(--bg-1); border:1px solid var(--line);
    display:flex; align-items:center; justify-content:center; color:var(--cyan);
  }
  .agent-icon svg{width:22px; height:22px;}
  .agent-card h3{font-family:var(--disp); font-size:16.5px; font-weight:600; line-height:1.3;}
  .agent-card p{color:var(--text-1); font-size:13px; line-height:1.55; flex:1;}
  .agent-card-foot{display:flex; align-items:center; justify-content:space-between; margin-top:2px;}
  .agent-card-media{width:100%; height:110px; border-radius:9px; background-size:cover; background-position:center; margin-bottom:2px; border:1px solid var(--line);}
  .agent-meta-row{display:flex; flex-wrap:wrap; gap:6px;}
  .meta-chip{font-family:var(--mono); font-size:10.5px; background:var(--bg-1); border:1px solid var(--line); color:var(--text-1); padding:4px 9px; border-radius:7px;}

  /* ---------- system status strip ---------- */
  .status-strip{
    display:flex; flex-wrap:wrap; gap:16px 24px; align-items:center;
    background:var(--surface); border:1px solid var(--line); border-radius:12px;
    padding:12px 18px; margin-bottom:18px; font-size:12.5px; color:var(--text-1);
  }
  .status-item{display:flex; align-items:center; gap:6px;}
  .status-item b{color:var(--text-0); font-family:var(--mono); font-weight:600;}
  .status-dot{width:7px; height:7px; border-radius:50%; background:var(--green); box-shadow:0 0 6px var(--green); display:inline-block;}
  .status-sep{padding-left:16px; border-left:1px solid var(--line);}
  @media (max-width:600px){ .status-sep{border-left:none; padding-left:0;} }
  .demo-note{ text-align:center; font-size:11px; color:var(--text-2); margin-top:16px; opacity:.7; }

  /* ---------- initial loading overlay (mientras se verifica la sesión) ---------- */
  .app-loading{
    position:fixed; inset:0; z-index:9999; background:var(--bg-0);
    display:flex; align-items:center; justify-content:center;
    transition:opacity .3s ease;
  }
  .app-loading.hidden{ opacity:0; pointer-events:none; }
  .app-loading-inner{ display:flex; flex-direction:column; align-items:center; gap:14px; color:var(--text-1); font-family:var(--mono); font-size:12.5px; letter-spacing:.04em; }
  .app-loading-mark{
    width:44px; height:44px; border-radius:12px; background:linear-gradient(135deg,var(--blue),var(--cyan));
    display:flex; align-items:center; justify-content:center; font-family:var(--disp); font-weight:700; color:#04101f; font-size:20px;
    animation:pulse 1.6s ease-in-out infinite;
  }
  .agent-arrow{color:var(--text-2); font-size:13px;}

  /* ============ AGENT DETAIL ============ */
  #view-agent{background:var(--bg-0);}
  .detail-head{padding:30px 0 10px;}
  .back-link{display:inline-flex; align-items:center; gap:7px; color:var(--text-1); font-size:13.5px; background:none; border:none; margin-bottom:20px;}
  .back-link:hover{color:var(--cyan);}
  .detail-top{display:flex; gap:18px; align-items:flex-start; flex-wrap:wrap;}
  .detail-icon{width:60px; height:60px; border-radius:14px; background:linear-gradient(135deg,var(--surface-2),var(--bg-1)); border:1px solid var(--line); display:flex; align-items:center; justify-content:center; color:var(--cyan); flex-shrink:0;}
  .detail-icon svg{width:28px; height:28px;}
  .detail-title h2{font-family:var(--disp); font-size:26px; margin-bottom:6px;}
  .detail-title p{color:var(--text-1); font-size:14.5px; max-width:560px;}
  .detail-body{padding:26px 0 70px; display:grid; grid-template-columns:1.4fr 1fr; gap:26px;}
  @media (max-width:760px){.detail-body{grid-template-columns:1fr;}}
  .card-block{background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); padding:24px;}
  .card-block h4{font-family:var(--disp); font-size:14.5px; margin-bottom:16px; color:var(--text-0); display:flex; align-items:center; gap:8px;}
  .card-block h4::before{content:''; width:4px; height:14px; background:var(--blue); border-radius:2px;}
  .feature-list{list-style:none; display:flex; flex-direction:column; gap:12px;}
  .feature-list li{display:flex; gap:10px; font-size:13.5px; color:var(--text-1); line-height:1.5;}
  .feature-list li::before{content:'✓'; color:var(--green); font-weight:700; flex-shrink:0;}
  .tag-row{display:flex; gap:8px; flex-wrap:wrap; margin-top:4px;}
  .tag{font-family:var(--mono); font-size:11px; background:var(--bg-1); border:1px solid var(--line); padding:5px 10px; border-radius:7px; color:var(--text-1);}
  .cta-block{margin-top:20px;}

  /* ============ ADMIN PANEL ============ */
  #view-admin{background:var(--bg-0);}
  .admin-shell{display:grid; grid-template-columns:220px 1fr; min-height:100vh;}
  @media (max-width:820px){.admin-shell{grid-template-columns:1fr;}}
  .admin-side{background:var(--surface); border-right:1px solid var(--line); padding:22px 16px; display:flex; flex-direction:column; gap:4px;}
  @media (max-width:820px){.admin-side{border-right:none; border-bottom:1px solid var(--line); flex-direction:row; overflow-x:auto;}}
  .admin-brand{display:flex; align-items:center; gap:9px; padding:6px 10px 20px;}
  @media (max-width:820px){.admin-brand{display:none;}}
  .side-link{
    display:flex; align-items:center; gap:10px; padding:11px 12px; border-radius:9px; background:none; border:none;
    color:var(--text-1); font-size:13.5px; text-align:left; white-space:nowrap;
  }
  .side-link:hover{color:var(--text-0); background:var(--bg-1);}
  .side-link.active{background:rgba(47,111,255,.14); color:var(--cyan); font-weight:600;}
  .admin-main{padding:26px 24px 70px;}
  .admin-topbar{display:flex; justify-content:space-between; align-items:center; margin-bottom:26px; flex-wrap:wrap; gap:12px;}
  .admin-topbar h2{font-family:var(--disp); font-size:22px;}
  .admin-panel{display:none;}
  .admin-panel.active{display:block;}
  .agent-row{
    background:var(--surface); border:1px solid var(--line); border-radius:12px; padding:16px 18px;
    display:flex; align-items:center; gap:14px; margin-bottom:10px; flex-wrap:wrap;
  }
  .agent-row .row-icon{width:36px; height:36px; border-radius:9px; background:var(--bg-1); display:flex; align-items:center; justify-content:center; color:var(--cyan); flex-shrink:0;}
  .agent-row .row-icon svg{width:18px; height:18px;}
  .agent-row .row-info{flex:1; min-width:160px;}
  .agent-row .row-info b{font-size:14px; display:block; margin-bottom:2px;}
  .agent-row .row-info span{font-size:12px; color:var(--text-2);}
  .row-actions{display:flex; gap:8px;}
  .modal-overlay{
    position:fixed; inset:0; background:rgba(4,6,12,.72); backdrop-filter:blur(3px); z-index:100;
    display:flex; align-items:flex-start; justify-content:center; padding:40px 16px; overflow-y:auto;
  }
  .modal{
    background:var(--surface); border:1px solid var(--line); border-radius:16px; padding:28px; width:100%; max-width:520px;
    box-shadow:0 30px 70px -20px rgba(0,0,0,.7);
  }
  .modal h3{font-family:var(--disp); font-size:19px; margin-bottom:20px;}
  .modal-actions{display:flex; gap:10px; margin-top:6px;}
  .stat-cards{display:grid; grid-template-columns:repeat(auto-fit,minmax(150px,1fr)); gap:14px; margin-bottom:26px;}
  .stat-card{background:var(--surface); border:1px solid var(--line); border-radius:12px; padding:18px;}
  .stat-card b{font-family:var(--mono); font-size:24px; display:block; color:var(--cyan);}
  .stat-card span{font-size:12px; color:var(--text-2);}
  .btn:disabled{opacity:.35; cursor:not-allowed; pointer-events:none;}
  .pipeline-track{display:flex; align-items:center; flex-wrap:wrap; gap:4px; margin:12px 0; font-family:var(--mono); font-size:10.5px;}
  .pipeline-step{padding:5px 9px; border-radius:100px; background:var(--bg-1); border:1px solid var(--line); color:var(--text-2); white-space:nowrap;}
  .pipeline-step.done{color:var(--text-1); border-color:var(--blue);}
  .pipeline-step.current{background:rgba(47,111,255,.16); color:var(--cyan); border-color:var(--cyan); font-weight:600;}
  .pipeline-arrow{color:var(--text-2); font-size:11px;}
  .quote-box{border-top:1px dashed var(--line); padding-top:14px; margin-top:4px;}

  /* ============ CALCULATOR ============ */
  .calc-tabs{display:flex; gap:8px; margin-bottom:20px; border-bottom:1px solid var(--line);}
  .calc-tab{background:none; border:none; padding:10px 4px; margin-right:18px; color:var(--text-2); font-size:14px; font-weight:600; border-bottom:2px solid transparent; position:relative; top:1px;}
  .calc-tab.active{color:var(--cyan); border-bottom-color:var(--cyan);}
  .line-row{display:grid; grid-template-columns:1fr 90px 110px 34px; gap:8px; margin-bottom:10px; align-items:center;}
  @media (max-width:600px){.line-row{grid-template-columns:1fr 70px 90px 30px;}}
  .line-row-simple{display:grid; grid-template-columns:1fr 110px 34px; gap:8px; margin-bottom:10px; align-items:center;}

  /* ---------- calculadora: visibilidad según rol ---------- */
  .calc-drawer.role-client .admin-only{ display:none !important; }
  .calc-drawer.role-admin .client-only{ display:none !important; }
  .line-row input, .line-row select{padding:10px 11px; font-size:13.5px;}
  .row-remove{background:none; border:none; color:var(--red); font-size:16px; opacity:.7;}
  .row-remove:hover{opacity:1;}
  .calc-summary{display:flex; flex-direction:column; gap:10px; margin-top:18px; padding-top:18px; border-top:1px solid var(--line);}
  .summary-line{display:flex; justify-content:space-between; font-size:14px; color:var(--text-1);}
  .summary-line.total{font-size:19px; color:var(--text-0); font-weight:700; font-family:var(--mono);}
  .invoice-preview{
    background:var(--bg-1); border:1px solid var(--line); border-radius:12px; padding:22px; margin-top:20px;
    font-family:var(--mono); font-size:13px; line-height:1.9; white-space:pre-wrap;
  }

  /* ===================== VITRINA TÉCNICA ===================== */
  .tech-view{ background:var(--bg-0); }
  .tech-eyebrow{
    font-family:var(--mono); font-size:11.5px; letter-spacing:.14em; text-transform:uppercase;
    color:var(--cyan); display:flex; align-items:center; gap:8px;
  }
  .tech-eyebrow::before{content:''; width:6px; height:6px; border-radius:50%; background:var(--cyan); box-shadow:0 0 8px var(--cyan);}
  .tech-sub{color:var(--text-1); font-size:13.5px; margin-top:4px;}
  .tech-note{color:var(--text-2); font-size:12px; text-align:center; margin:14px 0 30px;}

  .tech-stage{
    position:relative; width:100%; min-height:600px; margin-top:22px;
    background:radial-gradient(circle at 50% 15%, rgba(47,111,255,.14), transparent 55%), var(--bg-1);
    border:1px solid var(--line); border-radius:16px; overflow:hidden;
  }
  .tech-stage svg{ width:100%; height:100%; display:block; }

  .tech-layer-label{
    position:absolute; top:14px; transform:translateX(-50%);
    font-family:var(--mono); font-size:10px; letter-spacing:.1em; text-transform:uppercase;
    color:var(--text-2); pointer-events:none; white-space:nowrap;
  }

  .tech-node-card{
    position:absolute; transform:translate(-50%,-50%);
    display:flex; flex-direction:column; align-items:center; gap:5px;
    width:82px; text-align:center; pointer-events:none;
  }
  .tech-node-dot{
    width:44px; height:44px; border-radius:12px;
    background:linear-gradient(150deg, var(--surface-2), var(--bg-1));
    border:1px solid var(--line);
    display:flex; align-items:center; justify-content:center; font-size:18px;
    box-shadow:0 8px 20px -10px rgba(0,0,0,.6);
  }
  .tech-node-label{ font-size:10.5px; color:var(--text-1); font-weight:600; line-height:1.25; }

  /* Nodo n8n: núcleo de la automatización, con animación de iluminación (glow) */
  .tech-node-card.is-core .tech-node-dot{
    border-color:var(--cyan);
    animation: techCoreGlow 2.6s ease-in-out infinite;
  }
  .tech-node-card.is-core .tech-node-label{ color:var(--cyan); font-weight:700; }
  @keyframes techCoreGlow{
    0%, 100%{ box-shadow:0 0 10px 0 rgba(34,211,238,.35), 0 8px 20px -10px rgba(0,0,0,.6); border-color:rgba(34,211,238,.5); }
    50%{ box-shadow:0 0 26px 6px rgba(34,211,238,.65), 0 8px 20px -10px rgba(0,0,0,.6); border-color:var(--cyan); }
  }

  /* Nodos secundarios "vivos": glow más sutil, desfasado del núcleo */
  .tech-node-card.is-live .tech-node-dot{
    animation: techLiveGlow 3.4s ease-in-out infinite;
  }
  @keyframes techLiveGlow{
    0%, 100%{ box-shadow:0 0 6px 0 rgba(47,111,255,.25), 0 8px 20px -10px rgba(0,0,0,.6); }
    50%{ box-shadow:0 0 16px 2px rgba(47,111,255,.5), 0 8px 20px -10px rgba(0,0,0,.6); border-color:var(--blue); }
  }

  /* Nodo de seguridad: acento distinto para diferenciar la capa de protección */
  .tech-node-card.is-security .tech-node-dot{ border-color:rgba(34,211,238,.35); }
  .tech-node-card.is-security .tech-node-label{ color:var(--text-2); }

  .tech-particle{ fill:var(--cyan); filter:drop-shadow(0 0 3px rgba(34,211,238,.9)); }

  /* Conexiones: línea base + trazo que "fluye" encima */
  .tech-link{ fill:none; stroke:var(--line); stroke-width:1.5; }
  .tech-link-flow{
    fill:none; stroke:var(--cyan); stroke-width:1.6; stroke-linecap:round;
    stroke-dasharray:6 14; opacity:.85;
    animation: techFlow 2.4s linear infinite;
  }
  @keyframes techFlow{ to{ stroke-dashoffset:-40; } }

  @media (prefers-reduced-motion: reduce){
    .tech-node-card.is-core .tech-node-dot{ animation:none; box-shadow:0 0 18px 2px rgba(34,211,238,.5); }
    .tech-node-card.is-live .tech-node-dot{ animation:none; box-shadow:0 0 10px 1px rgba(47,111,255,.35); }
    .tech-link-flow{ animation:none; opacity:.5; }
    .tech-particle{ display:none; }
  }

  @media (max-width:640px){
    .tech-stage{ min-height:720px; }
    .tech-node-card{ width:68px; }
    .tech-node-dot{ width:38px; height:38px; font-size:15px; }
    .tech-node-label{ font-size:9px; }
    .tech-layer-label{ display:none; }
  }

  /* ===================== CENTRO DE IMPLEMENTACIÓN ===================== */
  .imp-view{ background:var(--bg-0); }
  .imp-head{ padding-top:36px; }

  .imp-tabs{ display:flex; gap:6px; margin:24px 0 22px; border-bottom:1px solid var(--line); }
  .imp-tab{
    background:none; border:none; padding:10px 4px; margin-right:22px; color:var(--text-2);
    font-size:14px; font-weight:600; border-bottom:2px solid transparent; position:relative; top:1px;
    transition:color .15s ease, border-color .15s ease;
  }
  .imp-tab:hover{ color:var(--text-0); }
  .imp-tab.active{ color:var(--cyan); border-bottom-color:var(--cyan); }

  .imp-auto-grid{
    display:grid; grid-template-columns:repeat(auto-fit,minmax(280px,1fr)); gap:18px; margin-bottom:36px;
  }
  .imp-auto-card{
    background:linear-gradient(160deg, var(--surface), var(--surface-2));
    border:1px solid var(--line); border-radius:16px; padding:22px;
    display:flex; flex-direction:column; gap:14px;
    box-shadow:0 20px 40px -24px rgba(0,0,0,.6);
    transition:transform .18s ease, border-color .18s ease;
  }
  .imp-auto-card:hover{ transform:translateY(-3px); border-color:rgba(34,211,238,.3); }
  .imp-auto-card-head{ display:flex; justify-content:space-between; align-items:flex-start; gap:10px; }
  .imp-auto-card h3{ font-family:var(--disp); font-size:16.5px; font-weight:600; }
  .imp-auto-version{ font-family:var(--mono); font-size:11.5px; color:var(--text-2); margin-top:2px; }

  .imp-health-dot{ width:8px; height:8px; border-radius:50%; display:inline-block; margin-right:6px; }
  .imp-health-dot.ok{ background:#3ee08a; box-shadow:0 0 6px #3ee08a; }
  .imp-health-dot.warn{ background:#f0b93e; box-shadow:0 0 6px #f0b93e; }
  .imp-health-row{ font-size:12px; color:var(--text-1); display:flex; align-items:center; }

  .imp-meta-grid{
    display:grid; grid-template-columns:1fr 1fr; gap:8px 14px;
    font-size:11.5px; color:var(--text-2); padding:12px 0; border-top:1px dashed var(--line); border-bottom:1px dashed var(--line);
  }
  .imp-meta-grid b{ color:var(--text-1); font-weight:600; }

  .imp-quick-actions{ display:grid; grid-template-columns:repeat(3,1fr); gap:8px; }
  .imp-quick-btn{
    background:var(--bg-1); border:1px solid var(--line); border-radius:10px; padding:9px 6px;
    color:var(--text-1); font-size:11.5px; font-weight:600; display:flex; align-items:center; gap:5px; justify-content:center;
    transition:border-color .15s ease, color .15s ease;
  }
  .imp-quick-btn:hover{ border-color:var(--cyan); color:var(--cyan); }

  .imp-health-detail-row{ display:flex; align-items:flex-start; gap:10px; }
  .imp-health-detail-row .imp-health-dot{ margin-top:5px; width:11px; height:11px; }

  .imp-empty{ color:var(--text-2); font-size:13.5px; padding:20px 0; }

  /* ---------- certificado de implementación ---------- */
  .modal-lg{ max-width:680px; }
  .certificate{
    background:radial-gradient(circle at 15% 0%, rgba(47,111,255,.16), transparent 55%), var(--bg-1);
    border:1px solid var(--cyan); border-radius:14px; padding:32px;
  }
  .certificate-head{ display:flex; justify-content:space-between; align-items:flex-start; margin-bottom:26px; }
  .certificate-brand{ font-family:var(--disp); font-weight:700; font-size:15px; }
  .certificate-brand span{ color:var(--cyan); }
  .certificate-id{ font-family:var(--mono); font-size:11px; color:var(--text-2); text-align:right; }
  .certificate-title{ font-family:var(--disp); font-size:22px; margin-bottom:4px; }
  .certificate-sub{ color:var(--text-2); font-size:12.5px; margin-bottom:24px; }
  .certificate-grid{ display:grid; grid-template-columns:1fr 1fr; gap:16px 24px; }
  .certificate-grid .field-label{ font-size:10.5px; text-transform:uppercase; letter-spacing:.08em; color:var(--text-2); margin-bottom:3px; }
  .certificate-grid .field-value{ font-size:14px; color:var(--text-0); font-weight:600; }
  .certificate-foot{ margin-top:28px; padding-top:16px; border-top:1px dashed var(--line); font-size:11px; color:var(--text-2); text-align:center; }

  /* ---------- historial de versiones ---------- */
  .imp-timeline{ display:flex; flex-direction:column; gap:0; margin:6px 0 4px; max-height:50vh; overflow-y:auto; }
  .imp-timeline-item{ position:relative; padding:0 0 22px 26px; border-left:2px solid var(--line); }
  .imp-timeline-item:last-child{ border-left-color:transparent; padding-bottom:2px; }
  .imp-timeline-item::before{
    content:''; position:absolute; left:-6px; top:2px; width:10px; height:10px; border-radius:50%;
    background:var(--cyan); box-shadow:0 0 8px var(--cyan);
  }
  .imp-timeline-version{ font-family:var(--mono); font-weight:700; color:var(--cyan); font-size:13px; }
  .imp-timeline-date{ font-size:11px; color:var(--text-2); margin-left:8px; }
  .imp-timeline-summary{ font-size:13px; color:var(--text-1); margin-top:4px; line-height:1.5; }
  .imp-timeline-engineer{ font-size:11px; color:var(--text-2); margin-top:4px; }

  /* ---------- formas de pago (detalle + QR) ---------- */
  .pay-method-card{
    background:var(--bg-1); border:1px solid var(--line); border-radius:12px; padding:14px 16px; margin-bottom:10px;
  }
  .pay-method-head{ display:flex; justify-content:space-between; align-items:center; gap:10px; }
  .pay-method-label{ font-size:13.5px; font-weight:600; color:var(--text-1); }
  .pay-method-value{ font-family:var(--mono); font-size:13px; color:var(--text-0); margin-top:8px; word-break:break-word; }
  .pay-method-note{ font-size:12.5px; color:var(--text-2); margin-top:10px; line-height:1.5; }
  .pay-qr-img{
    display:block; max-width:220px; width:100%; margin:12px auto 0; border-radius:10px; border:1px solid var(--line);
  }

  .pay-proof-toggle{
    display:flex; align-items:center; gap:7px; font-size:12px; color:var(--text-2); margin-top:7px; cursor:pointer;
  }
  .pay-proof-toggle input{ width:auto; margin:0; }

  .pay-submit-box{
    background:var(--bg-1); border:1px solid var(--line); border-radius:12px; padding:16px; margin:14px 0;
  }
  .pay-status-line{ font-size:13px; color:var(--text-1); line-height:1.5; }

  @media (max-width:480px){
    .modal{ padding:18px; }
    .certificate{ padding:20px; }
    .certificate-grid{ grid-template-columns:1fr; gap:14px; }
    .imp-meta-grid{ grid-template-columns:1fr; }
    .imp-quick-actions{ grid-template-columns:repeat(2,1fr); }
    .certificate-head{ flex-direction:column; gap:8px; }
    .certificate-id{ text-align:left; }
  }

  /* ---------- utilidades (evitan repetir el mismo style inline) ---------- */
  .empty-state-note{ color:var(--text-2); font-size:13.5px; }
  .card-header-row{ display:flex; justify-content:space-between; align-items:flex-start; gap:10px; flex-wrap:wrap; }