*{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#0f1117;--bg2:#161b26;--bg3:#1e2535;--bg4:#252d3d;
  --border:#2a3347;--border2:#3a4560;
  --text:#e8edf5;--text2:#8b9ab5;--text3:#5a6a85;
  --accent:#3b82f6;--accent2:#1d4ed8;--accentbg:rgba(59,130,246,0.12);
  --green:#10b981;--greenbg:rgba(16,185,129,0.12);
  --amber:#f59e0b;--amberbg:rgba(245,158,11,0.12);
  --red:#ef4444;--redbg:rgba(239,68,68,0.12);
  --purple:#8b5cf6;--purplebg:rgba(139,92,246,0.12);
  --radius:10px;--radius2:14px;
}
body{background:var(--bg);color:var(--text);min-height:100vh;font-size:14px;font-family:'DM Sans',sans-serif}
a{text-decoration:none;color:inherit}

/* Layout */
.layout{display:flex;height:100vh;overflow:hidden}
.sidebar{width:220px;background:var(--bg2);border-right:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0}
.sidebar-logo{padding:20px 16px 16px;border-bottom:1px solid var(--border)}
.brand{display:flex;align-items:center;gap:10px}
.brand-icon{width:32px;height:32px;background:var(--accent);border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;flex-shrink:0}
.brand-name{font-size:13px;font-weight:600;color:var(--text);line-height:1.2}
.brand-sub{font-size:11px;color:var(--text3);margin-top:1px}
.sidebar-nav{padding:12px 8px;flex:1;overflow-y:auto}
.nav-section{margin-bottom:20px}
.nav-section-title{font-size:10px;font-weight:600;color:var(--text3);text-transform:uppercase;letter-spacing:.08em;padding:0 8px;margin-bottom:6px}
.nav-item{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:8px;cursor:pointer;color:var(--text2);font-size:13px;font-weight:400;transition:all .15s;margin-bottom:2px;border:none;background:none;width:100%;text-align:left}
.nav-item:hover{background:var(--bg3);color:var(--text)}
.nav-item.active{background:var(--accentbg);color:var(--accent);font-weight:500}
.nav-item .ti{font-size:16px;flex-shrink:0}
.sidebar-footer{padding:12px 8px;border-top:1px solid var(--border)}
.user-info{display:flex;align-items:center;gap:8px;padding:6px 8px}
.user-avatar{width:28px;height:28px;border-radius:50%;background:var(--accentbg);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:600;color:var(--accent);flex-shrink:0}
.user-name{font-size:12px;font-weight:500;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.user-role{font-size:11px;color:var(--text3)}
.main{flex:1;display:flex;flex-direction:column;overflow:hidden}
.topbar{height:56px;background:var(--bg2);border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 24px;gap:16px;flex-shrink:0}
.topbar-title{font-size:15px;font-weight:500;flex:1}
.topbar-actions{display:flex;gap:8px;align-items:center}
.content{flex:1;overflow-y:auto;padding:24px}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:8px;font-size:13px;font-weight:500;cursor:pointer;border:none;transition:all .15s;font-family:inherit;white-space:nowrap}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent2)}
.btn-secondary{background:var(--bg3);color:var(--text);border:1px solid var(--border)}
.btn-secondary:hover{background:var(--bg4)}
.btn-danger{background:var(--redbg);color:var(--red);border:1px solid rgba(239,68,68,.3)}
.btn-danger:hover{background:rgba(239,68,68,.2)}
.btn-success{background:var(--greenbg);color:var(--green);border:1px solid rgba(16,185,129,.3)}
.btn-amber{background:var(--amberbg);color:var(--amber);border:1px solid rgba(245,158,11,.3)}
.btn-sm{padding:5px 10px;font-size:12px}
.btn-xs{padding:3px 8px;font-size:11px}

/* Cards */
.card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius2);padding:20px;margin-bottom:16px}
.card-title{font-size:14px;font-weight:500;margin-bottom:16px;display:flex;align-items:center;justify-content:space-between}
.stat-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius2);padding:20px}
.stat-card .label{font-size:11px;color:var(--text3);text-transform:uppercase;letter-spacing:.06em;margin-bottom:10px}
.stat-card .value{font-size:26px;font-weight:600;font-family:'DM Mono',monospace;color:var(--text)}
.stat-card .sub{font-size:12px;color:var(--text2);margin-top:6px}
.stat-card .icon-wrap{float:right;width:36px;height:36px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:18px}

/* Grids */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:24px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px}

/* Tables */
.table-wrap{overflow-x:auto}
.table{width:100%;border-collapse:collapse}
.table th{text-align:left;font-size:11px;font-weight:600;color:var(--text3);text-transform:uppercase;letter-spacing:.06em;padding:10px 14px;border-bottom:1px solid var(--border)}
.table td{padding:11px 14px;border-bottom:1px solid var(--border);font-size:13px;color:var(--text2);vertical-align:middle}
.table tr:last-child td{border-bottom:none}
.table tbody tr:hover td{background:var(--bg3)}

/* Badges */
.badge{display:inline-flex;align-items:center;gap:4px;padding:3px 9px;border-radius:20px;font-size:11px;font-weight:500}
.badge-green{background:var(--greenbg);color:var(--green)}
.badge-amber{background:var(--amberbg);color:var(--amber)}
.badge-blue{background:var(--accentbg);color:var(--accent)}
.badge-red{background:var(--redbg);color:var(--red)}

/* Forms */
.form-group{margin-bottom:16px}
.form-label{display:block;font-size:12px;font-weight:500;color:var(--text2);margin-bottom:6px}
.form-input{width:100%;background:var(--bg3);border:1px solid var(--border);border-radius:8px;padding:9px 12px;color:var(--text);font-size:13px;font-family:inherit;outline:none;transition:border .15s}
.form-input:focus{border-color:var(--accent)}
.form-input option{background:var(--bg2)}
select.form-input{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%238b9ab5' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14L2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:32px}
textarea.form-input{resize:vertical}

/* Modal */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.7);display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px}
.modal{background:var(--bg2);border:1px solid var(--border2);border-radius:var(--radius2);padding:28px;width:580px;max-width:100%;max-height:90vh;overflow-y:auto}
.modal-lg{width:720px}
.modal-title{font-size:16px;font-weight:600;margin-bottom:20px;display:flex;align-items:center;justify-content:space-between}
.modal-close{background:none;border:none;color:var(--text2);cursor:pointer;font-size:20px;padding:2px;line-height:1}

/* Section header */
.section-header{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:24px;gap:16px}
.section-title{font-size:18px;font-weight:600}
.section-sub{font-size:13px;color:var(--text2);margin-top:3px}
.section-actions{display:flex;gap:8px;align-items:center;flex-shrink:0}

/* Search */
.search-wrap{position:relative;display:inline-block}
.search-wrap .ti{position:absolute;left:10px;top:50%;transform:translateY(-50%);color:var(--text3);font-size:16px;pointer-events:none}
.search-input{background:var(--bg3);border:1px solid var(--border);border-radius:8px;padding:8px 12px 8px 36px;color:var(--text);font-size:13px;font-family:inherit;outline:none;width:230px;transition:border .15s}
.search-input:focus{border-color:var(--accent)}

/* Items en cuenta */
.item-row{display:flex;gap:8px;align-items:center;margin-bottom:8px;background:var(--bg3);padding:10px 12px;border-radius:8px;border:1px solid var(--border)}
.item-nombre{flex:1;background:none;border:none;color:var(--text);font-size:13px;font-family:inherit;outline:none}
.item-valor{width:130px;text-align:right;font-family:'DM Mono',monospace}
.item-del{background:none;border:none;color:var(--text3);cursor:pointer;font-size:16px;padding:2px 4px;line-height:1}
.item-del:hover{color:var(--red)}
.total-area{background:var(--bg3);border:1px solid var(--border);border-radius:8px;padding:14px;margin-top:10px}
.total-row{display:flex;justify-content:space-between;font-size:13px;color:var(--text2);padding:4px 0}
.total-row.final{font-size:16px;font-weight:600;color:var(--text);border-top:1px solid var(--border);padding-top:10px;margin-top:6px;font-family:'DM Mono',monospace}

/* Toggle */
.toggle{position:relative;width:36px;height:20px;flex-shrink:0}
.toggle input{opacity:0;width:0;height:0;position:absolute}
.slider{position:absolute;inset:0;background:var(--border2);border-radius:20px;cursor:pointer;transition:.2s}
.slider::before{content:'';position:absolute;width:14px;height:14px;left:3px;top:3px;background:#fff;border-radius:50%;transition:.2s}
.toggle input:checked+.slider{background:var(--accent)}
.toggle input:checked+.slider::before{transform:translateX(16px)}

/* Método pago */
.pago-method{display:flex;align-items:center;gap:12px;padding:14px;background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:8px}
.pago-method .pm-icon{width:40px;height:40px;border-radius:10px;background:var(--accentbg);display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--accent);flex-shrink:0}
.pago-method .pm-info{flex:1}
.pago-method .pm-name{font-size:13px;font-weight:500;color:var(--text)}
.pago-method .pm-det{font-size:12px;color:var(--text3);margin-top:2px}
.pago-method .pm-actions{display:flex;gap:6px;align-items:center}

/* Upload */
.upload-area{border:2px dashed var(--border2);border-radius:var(--radius);padding:24px;text-align:center;cursor:pointer;transition:all .15s;background:var(--bg3)}
.upload-area:hover{border-color:var(--accent);background:var(--accentbg)}

/* Alert */
.alert{padding:12px 14px;border-radius:8px;font-size:13px;margin-bottom:16px;display:flex;align-items:center;gap:8px}
.alert-success{background:var(--greenbg);color:var(--green);border:1px solid rgba(16,185,129,.3)}
.alert-danger{background:var(--redbg);color:var(--red);border:1px solid rgba(239,68,68,.3)}
.alert-amber{background:var(--amberbg);color:var(--amber);border:1px solid rgba(245,158,11,.3)}

/* Bar chart */
.bar-row{display:flex;align-items:center;gap:10px;margin-bottom:8px;font-size:12px}
.bar-label{width:130px;color:var(--text2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;text-align:right;font-size:11px}
.bar-track{flex:1;background:var(--bg3);border-radius:4px;height:22px;overflow:hidden}
.bar-fill{height:100%;background:var(--accent);border-radius:4px;display:flex;align-items:center;padding-left:8px;font-size:11px;color:#fff;font-family:'DM Mono',monospace;min-width:2px}

/* Invoice print */
.invoice-preview{background:#fff;color:#333;border-radius:12px;padding:32px;font-family:'DM Sans',sans-serif;font-size:12px;line-height:1.5}
@media print{
  .sidebar,.topbar,.modal-overlay .btn,.modal-title button{display:none!important}
  .invoice-preview{border-radius:0;padding:20px;box-shadow:none}
  body{background:#fff}
}

/* Mono */
.mono{font-family:'DM Mono',monospace}

/* Empty state */
.empty-state{text-align:center;padding:48px 24px;color:var(--text3)}
.empty-state .ti{font-size:40px;display:block;margin-bottom:12px}
.empty-state p{font-size:13px}

/* Login */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg)}
.login-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius2);padding:40px;width:380px}
.login-title{font-size:22px;font-weight:600;margin-bottom:6px;text-align:center}
.login-sub{font-size:13px;color:var(--text3);text-align:center;margin-bottom:28px}

/* Responsive */
/* ── Botón X cierre sidebar (dentro del aside, solo móvil) ── */
.sidebar-close{
  display:none;
  position:absolute;top:10px;right:10px;
  width:32px;height:32px;
  align-items:center;justify-content:center;
  background:none;border:none;
  color:var(--text2);cursor:pointer;
  border-radius:6px;font-size:18px;padding:0;
}
.sidebar-close:hover{background:var(--bg3);color:var(--text1)}

/* ── Overlay oscuro detrás del sidebar (móvil) ── */
.sidebar-overlay{
  display:none;
  position:fixed;inset:0;
  background:rgba(0,0,0,.55);
  z-index:199;
}
.sidebar-overlay.active{display:block}

/* ── Botón hamburguesa en el topbar (oculto en desktop) ── */
.btn-hamburger{
  display:none;
  align-items:center;justify-content:center;
  width:36px;height:36px;
  background:none;border:none;
  color:var(--text1);cursor:pointer;
  border-radius:6px;flex-shrink:0;
  font-size:22px;padding:0;margin-right:4px;
}
.btn-hamburger:hover{background:var(--bg3)}

/* ── Barra superior móvil (solo visible en móvil) ── */
.mobile-topbar{
  display:none;
  align-items:center;
  gap:12px;
  padding:0 16px;
  height:50px;
  background:var(--bg2);
  border-bottom:1px solid var(--border);
  flex-shrink:0;
  position:sticky;top:0;z-index:100;
}

@media(max-width:768px){
  .mobile-topbar{display:flex}

  /* El sidebar se convierte en drawer lateral */
  .sidebar{
    position:fixed;top:0;left:0;bottom:0;
    z-index:200;
    transform:translateX(-100%);
    transition:transform .25s ease;
    box-shadow:4px 0 24px rgba(0,0,0,.3);
    height:100vh;
  }
  .sidebar.open{transform:translateX(0)}
  .sidebar-close{display:flex}

  .grid-4,.grid-3{grid-template-columns:1fr 1fr}
  .grid-2,.two-col{grid-template-columns:1fr}
  .content{padding:16px}
}