/* ============================================================
   TecnoCable — Hoja de Estilos Principal + Responsive
   ============================================================ */

/* ── Variables CSS ────────────────────────────────────────── */
:root {
  --bg:           hsl(222 30% 7%);
  --fg:           hsl(210 30% 94%);
  --card:         hsl(222 28% 10%);
  --card-fg:      hsl(210 30% 94%);
  --muted:        hsl(222 22% 14%);
  --muted-fg:     hsl(215 15% 55%);
  --border:       hsl(220 20% 16%);
  --primary:      hsl(213 100% 55%);
  --primary-fg:   hsl(0 0% 100%);
  --destructive:  hsl(0 80% 58%);
  --radius:       0.75rem;
  --sidebar-bg:   hsl(224 35% 14%);
  --sidebar-w:    16rem;
  --sidebar-w-sm: 5rem;
  --topbar-h:     4rem;
  --blue:#3b82f6; --green:#10b981; --red:#ef4444;
  --orange:#f97316; --purple:#8b5cf6; --cyan:#06b6d4;
  --yellow:#f59e0b; --pink:#ec4899;
}

/* ── Reset ────────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{font-family:'Inter',system-ui,sans-serif;background:var(--bg);color:var(--fg);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
button{cursor:pointer;background:none;border:none;font:inherit;color:inherit}
ul,ol{list-style:none}

/* ── Layout Shell ─────────────────────────────────────────── */
.app-shell{display:flex;height:100vh;overflow:hidden}

/* ── SIDEBAR ─────────────────────────────────────────────── */
.sidebar{
  width:var(--sidebar-w);
  background:var(--sidebar-bg);
  display:flex;flex-direction:column;flex-shrink:0;
  box-shadow:2px 0 20px rgba(0,0,0,.4);
  z-index:200;
  transition:width .3s ease,transform .3s ease;
  overflow:hidden;
}
.app-shell.sidebar-collapsed .sidebar{width:var(--sidebar-w-sm)}

/* Overlay oscuro para móvil */
.sidebar-overlay{
  display:none;position:fixed;inset:0;
  background:rgba(0,0,0,.65);z-index:199;
  backdrop-filter:blur(2px);
}
.sidebar-overlay.activo{display:block}

/* Logo */
.sidebar-logo{
  display:flex;align-items:center;gap:.75rem;
  padding:1.25rem;border-bottom:1px solid rgba(255,255,255,.08);
  flex-shrink:0;min-height:var(--topbar-h);
}
.logo-icon{
  width:2.25rem;height:2.25rem;
  background:linear-gradient(135deg,#7c3aed,#2563eb);
  border-radius:.75rem;display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.logo-icon svg{width:1.1rem;height:1.1rem;stroke:#fff}
.logo-text{overflow:hidden}
.logo-name{display:block;font-weight:700;font-size:.875rem;color:#fff;white-space:nowrap}
.logo-sub{display:block;font-size:.7rem;color:rgba(255,255,255,.45);white-space:nowrap}

/* Nav */
.sidebar-nav{flex:1;padding:1rem .75rem;overflow-y:auto;scrollbar-width:none}
.sidebar-nav::-webkit-scrollbar{display:none}
.nav-section{margin-bottom:.25rem}
.nav-section-toggle{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  padding:.75rem .75rem .25rem;color:#fff;
}
.nav-section-label{
  font-size:.65rem;font-weight:600;text-transform:uppercase;
  letter-spacing:.08em;color:rgba(255,255,255,.38);
  transition:color .15s;white-space:nowrap;
}
.nav-section-toggle:hover .nav-section-label{color:rgba(255,255,255,.65)}
.nav-chevron{width:.75rem;height:.75rem;stroke:rgba(255,255,255,.3);transition:transform .2s}
.nav-section-items{display:none}
.nav-section-items.open{display:block}

.nav-link{
  display:flex;align-items:center;gap:.75rem;
  padding:.625rem .75rem;border-radius:.75rem;
  color:rgba(255,255,255,.55);
  transition:background .15s,color .15s;
  margin-bottom:.125rem;white-space:nowrap;overflow:hidden;
}
.nav-link:hover{background:rgba(255,255,255,.07);color:#fff}
.nav-link.active{
  background:linear-gradient(90deg,rgba(124,58,237,.7),rgba(37,99,235,.5));
  color:#fff;box-shadow:0 2px 10px rgba(99,102,241,.25);
}
.nav-link--danger:hover{background:rgba(239,68,68,.1);color:#f87171}
.nav-icon{width:1.25rem;height:1.25rem;flex-shrink:0}
.nav-icon svg{width:1.25rem;height:1.25rem}
.nav-label{font-size:.875rem;font-weight:500}

/* Sidebar colapsado desktop */
.sidebar.collapsed .nav-label,
.sidebar.collapsed .logo-text,
.sidebar.collapsed .nav-section-label,
.sidebar.collapsed .nav-chevron{display:none}
.sidebar.collapsed .nav-section-toggle{pointer-events:none}
.sidebar.collapsed .nav-section-items{display:block}
.sidebar.collapsed .nav-link{justify-content:center;padding:.625rem}
.sidebar.collapsed .nav-section::before{
  content:'';display:block;margin:.5rem .75rem;
  border-top:1px solid rgba(255,255,255,.08);
}

.sidebar-bottom{padding:1rem .75rem;border-top:1px solid rgba(255,255,255,.08);flex-shrink:0}

/* ── MAIN AREA ───────────────────────────────────────────── */
.main-area{flex:1;display:flex;flex-direction:column;overflow:hidden;min-width:0}

/* Topbar */
.topbar{
  height:var(--topbar-h);background:var(--card);
  border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 1rem;flex-shrink:0;gap:.5rem;
  box-shadow:0 1px 6px rgba(0,0,0,.2);
}
.topbar-toggle{
  padding:.5rem;border-radius:.5rem;
  color:var(--muted-fg);transition:background .15s,color .15s;flex-shrink:0;
}
.topbar-toggle:hover{background:var(--muted);color:var(--fg)}
.topbar-toggle svg{width:1.25rem;height:1.25rem}
.topbar-right{display:flex;align-items:center;gap:.5rem;flex-shrink:0}
.topbar-btn{
  position:relative;padding:.5rem;border-radius:.5rem;
  color:var(--muted-fg);transition:background .15s;
}
.topbar-btn:hover{background:var(--muted)}
.topbar-btn svg{width:1.25rem;height:1.25rem}
.notif-dot{
  position:absolute;top:.375rem;right:.375rem;
  width:.5rem;height:.5rem;background:#ef4444;border-radius:50%;
}
.topbar-user{
  display:flex;align-items:center;gap:.5rem;
  padding:.375rem .5rem;border-radius:.5rem;cursor:pointer;transition:background .15s;
}
.topbar-user:hover{background:var(--muted)}
.user-avatar{
  width:1.75rem;height:1.75rem;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,#8b5cf6,#3b82f6);
  display:flex;align-items:center;justify-content:center;
}
.user-avatar span{color:#fff;font-size:.7rem;font-weight:700}
.user-name{font-size:.875rem;font-weight:500;white-space:nowrap}
.user-rol{font-size:.65rem;color:var(--muted-fg);white-space:nowrap}
.user-chevron{width:1rem;height:1rem;color:var(--muted-fg)}

/* Contenido */
.page-content{flex:1;overflow-y:auto;padding:1.25rem}

/* ── COMPONENTES ─────────────────────────────────────────── */
.page-header{
  display:flex;align-items:flex-start;justify-content:space-between;
  gap:.75rem;margin-bottom:1.25rem;flex-wrap:wrap;
}
.page-header-left{display:flex;align-items:center;gap:.75rem;min-width:0}
.page-header-icon{
  width:2.25rem;height:2.25rem;border-radius:.75rem;flex-shrink:0;
  background:linear-gradient(135deg,#6366f1,#3b82f6);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 12px rgba(99,102,241,.3);
}
.page-header-icon svg{width:1rem;height:1rem;stroke:#fff}
.page-header h1{font-size:1.25rem;font-weight:700;letter-spacing:-.02em}
.page-header p{font-size:.75rem;color:var(--muted-fg);margin-top:.1rem}
.page-header-actions{display:flex;gap:.4rem;flex-wrap:wrap;align-items:center}

.card{background:var(--card);border:1px solid var(--border);border-radius:1rem;padding:1.25rem}
.card-title{font-size:.875rem;font-weight:600;margin-bottom:.25rem}
.card-sub{font-size:.75rem;color:var(--muted-fg);margin-bottom:1rem}

/* KPI Grid — 2 cols mobile, 4 cols desktop */
.kpi-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:.75rem;margin-bottom:1.25rem;
}
@media(min-width:1024px){.kpi-grid{grid-template-columns:repeat(4,1fr);gap:1rem}}

.kpi-card{
  position:relative;overflow:hidden;
  background:var(--card);border-radius:1rem;border:1px solid;
  padding:1rem;cursor:default;transition:transform .2s;
}
.kpi-card:hover{transform:scale(1.02)}
.kpi-card-inner{position:relative;z-index:1}
.kpi-card-top{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:.625rem}
.kpi-icon{
  width:2.25rem;height:2.25rem;border-radius:.75rem;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
}
.kpi-icon svg{width:1.1rem;height:1.1rem}
.kpi-badge{
  display:flex;align-items:center;gap:.25rem;
  font-size:.65rem;font-weight:700;
  padding:.2rem .45rem;border-radius:.5rem;white-space:nowrap;
}
.kpi-badge svg{width:.7rem;height:.7rem}
.kpi-value{font-size:1.35rem;font-weight:700;color:#fff;letter-spacing:-.02em;margin-bottom:.1rem}
.kpi-title{font-size:.68rem;color:rgba(255,255,255,.5);font-weight:500}
.kpi-sub{font-size:.62rem;color:rgba(255,255,255,.3);margin-top:.1rem}

.skeleton{background:rgba(255,255,255,.08);border-radius:.5rem;animation:pulse 1.5s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}

/* KPI colors */
.kpi--blue{border-color:rgba(59,130,246,.25)}.kpi--blue .kpi-icon{background:rgba(59,130,246,.18)}.kpi--blue .kpi-icon svg{stroke:#60a5fa}
.kpi--green{border-color:rgba(16,185,129,.25)}.kpi--green .kpi-icon{background:rgba(16,185,129,.18)}.kpi--green .kpi-icon svg{stroke:#34d399}
.kpi--red{border-color:rgba(239,68,68,.25)}.kpi--red .kpi-icon{background:rgba(239,68,68,.18)}.kpi--red .kpi-icon svg{stroke:#f87171}
.kpi--orange{border-color:rgba(249,115,22,.25)}.kpi--orange .kpi-icon{background:rgba(249,115,22,.18)}.kpi--orange .kpi-icon svg{stroke:#fb923c}
.kpi--purple{border-color:rgba(139,92,246,.25)}.kpi--purple .kpi-icon{background:rgba(139,92,246,.18)}.kpi--purple .kpi-icon svg{stroke:#a78bfa}
.kpi--cyan{border-color:rgba(6,182,212,.25)}.kpi--cyan .kpi-icon{background:rgba(6,182,212,.18)}.kpi--cyan .kpi-icon svg{stroke:#22d3ee}
.kpi--yellow{border-color:rgba(245,158,11,.25)}.kpi--yellow .kpi-icon{background:rgba(245,158,11,.18)}.kpi--yellow .kpi-icon svg{stroke:#fbbf24}
.kpi--pink{border-color:rgba(236,72,153,.25)}.kpi--pink .kpi-icon{background:rgba(236,72,153,.18)}.kpi--pink .kpi-icon svg{stroke:#f472b6}

.badge-up{background:rgba(16,185,129,.15);color:#34d399}
.badge-down{background:rgba(239,68,68,.15);color:#f87171}

/* Alertas */
.alertas-card{margin-bottom:0}
.alertas-header{display:flex;align-items:center;gap:.5rem;margin-bottom:1rem}
.alertas-icon{width:2rem;height:2rem;border-radius:.5rem;background:rgba(59,130,246,.15);display:flex;align-items:center;justify-content:center}
.alertas-icon svg{width:1rem;height:1rem;stroke:var(--primary)}
.alertas-title{font-size:.875rem;font-weight:600}
.alertas-sub{font-size:.7rem;color:var(--muted-fg)}
.alertas-list{display:flex;flex-direction:column;gap:.5rem}
.alerta-item{display:flex;align-items:flex-start;gap:.75rem;padding:.75rem;border-radius:.75rem;border:1px solid}
.alerta-ico{width:1.75rem;height:1.75rem;border-radius:.5rem;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:.1rem}
.alerta-ico svg{width:.875rem;height:.875rem}
.alerta-msg{font-size:.7rem;font-weight:600}
.alerta-detail{font-size:.65rem;color:rgba(255,255,255,.3);margin-top:.15rem}
.alerta--green{border-color:rgba(16,185,129,.22);background:rgba(16,185,129,.07)}.alerta--green .alerta-ico{background:rgba(16,185,129,.18)}.alerta--green .alerta-ico svg{stroke:#34d399}.alerta--green .alerta-msg{color:#6ee7b7}
.alerta--yellow{border-color:rgba(245,158,11,.22);background:rgba(245,158,11,.07)}.alerta--yellow .alerta-ico{background:rgba(245,158,11,.18)}.alerta--yellow .alerta-ico svg{stroke:#fbbf24}.alerta--yellow .alerta-msg{color:#fde68a}
.alerta--red{border-color:rgba(239,68,68,.22);background:rgba(239,68,68,.07)}.alerta--red .alerta-ico{background:rgba(239,68,68,.18)}.alerta--red .alerta-ico svg{stroke:#f87171}.alerta--red .alerta-msg{color:#fca5a5}

/* Grids */
.grid-2{display:grid;grid-template-columns:1fr;gap:1rem}
@media(min-width:768px){.grid-2{grid-template-columns:repeat(2,1fr)}}
.charts-grid{display:grid;grid-template-columns:1fr;gap:1rem;margin-bottom:1.5rem}
@media(min-width:1280px){.charts-grid{grid-template-columns:8fr 4fr}}
.chart-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1rem;flex-wrap:wrap;gap:.5rem}
.chart-title{font-size:.875rem;font-weight:600}
.chart-sub{font-size:.7rem;color:var(--muted-fg)}

/* Tablas */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
table{width:100%;border-collapse:collapse}
th,td{padding:.625rem .75rem;text-align:left;white-space:nowrap}
th{font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--muted-fg);border-bottom:1px solid var(--border)}
td{font-size:.8rem;border-bottom:1px solid rgba(255,255,255,.04)}
tr:last-child td{border-bottom:none}
tr:hover td{background:rgba(255,255,255,.03)}

/* Status */
.status{display:inline-flex;align-items:center;gap:.3rem;padding:.2rem .55rem;border-radius:9999px;font-size:.65rem;font-weight:600}
.status::before{content:'';width:.45rem;height:.45rem;border-radius:50%}
.status--active{background:rgba(16,185,129,.15);color:#34d399}.status--active::before{background:#34d399}
.status--suspended{background:rgba(239,68,68,.15);color:#f87171}.status--suspended::before{background:#f87171}
.status--pending{background:rgba(245,158,11,.15);color:#fbbf24}.status--pending::before{background:#fbbf24}
.status--baja{background:rgba(100,116,139,.15);color:#94a3b8}.status--baja::before{background:#94a3b8}

/* Botones */
.btn{display:inline-flex;align-items:center;gap:.4rem;padding:.45rem .875rem;border-radius:.625rem;font-size:.78rem;font-weight:500;transition:all .15s;cursor:pointer;border:none;white-space:nowrap}
.btn svg{width:.9rem;height:.9rem}
.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{filter:brightness(1.1)}
.btn-outline{background:transparent;color:var(--fg);border:1px solid var(--border)}.btn-outline:hover{background:var(--muted)}
.btn-ghost{background:transparent;color:var(--muted-fg)}.btn-ghost:hover{background:var(--muted);color:var(--fg)}
.btn-danger{background:rgba(239,68,68,.15);color:#f87171}.btn-danger:hover{background:rgba(239,68,68,.25)}

/* Inputs */
.input-group{display:flex;flex-direction:column;gap:.35rem;margin-bottom:1rem}
.input-label{font-size:.75rem;font-weight:500;color:var(--fg)}
.input{background:var(--muted);border:1px solid var(--border);border-radius:.625rem;color:var(--fg);padding:.6rem .875rem;font-size:.875rem;font-family:inherit;width:100%;transition:border-color .15s;outline:none}
.input:focus{border-color:var(--primary)}
.input::placeholder{color:var(--muted-fg)}
.input-icon{position:relative}
.input-icon .input{padding-left:2.5rem}
.input-icon>svg{position:absolute;left:.75rem;top:50%;transform:translateY(-50%);width:1rem;height:1rem;stroke:var(--muted-fg);pointer-events:none}

/* Tabs */
.tabs{display:flex;gap:.25rem;border-bottom:1px solid var(--border);margin-bottom:1.25rem;overflow-x:auto;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tab-btn{padding:.6rem 1rem;font-size:.8rem;font-weight:500;color:var(--muted-fg);border-bottom:2px solid transparent;margin-bottom:-1px;transition:all .15s;white-space:nowrap}
.tab-btn:hover{color:var(--fg)}
.tab-btn.active{color:var(--primary);border-bottom-color:var(--primary)}
.tab-pane{display:none}.tab-pane.active{display:block}
.section-label{font-size:.65rem;font-weight:600;text-transform:uppercase;letter-spacing:.1em;color:rgba(255,255,255,.28);margin-bottom:.75rem}

/* Scrollbar */
::-webkit-scrollbar{width:5px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,.12);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:rgba(255,255,255,.22)}

/* ══════════════════════════════════════════════════
   MÓVIL  < 768px
══════════════════════════════════════════════════ */
@media(max-width:767px){
  /* Sidebar como drawer */
  .sidebar{
    position:fixed;top:0;left:0;bottom:0;
    height:100vh;z-index:200;
    width:var(--sidebar-w) !important;
    transform:translateX(-100%);
  }
  .sidebar.mobile-open{
    transform:translateX(0);
    box-shadow:4px 0 30px rgba(0,0,0,.6);
  }
  .main-area{width:100%}

  /* Topbar */
  .topbar{padding:0 .875rem}
  .user-name,.user-chevron,.user-rol{display:none}

  /* Page header apilado */
  .page-header{flex-direction:column;align-items:flex-start;gap:.625rem}
  .page-header h1{font-size:1.1rem}
  .page-header-actions{width:100%}

  /* KPI 2 columnas */
  .kpi-grid{grid-template-columns:repeat(2,1fr);gap:.625rem}
  .kpi-value{font-size:1.1rem}
  .kpi-card{padding:.875rem}
  .kpi-title{font-size:.63rem}

  /* Padding de contenido */
  .page-content{padding:.875rem}

  /* Grids */
  .grid-2{grid-template-columns:1fr}

  /* Botones compactos */
  .btn{padding:.4rem .625rem;font-size:.73rem}
}

/* ══════════════════════════════════════════════════
   TABLET  768px – 1023px
══════════════════════════════════════════════════ */
@media(min-width:768px) and (max-width:1023px){
  /* Sidebar solo iconos en tablet */
  .sidebar{width:var(--sidebar-w-sm)}
  .sidebar .nav-label,
  .sidebar .logo-text,
  .sidebar .nav-section-label,
  .sidebar .nav-chevron{display:none}
  .sidebar .nav-section-toggle{pointer-events:none}
  .sidebar .nav-section-items{display:block}
  .sidebar .nav-link{justify-content:center;padding:.625rem}
  .sidebar .sidebar-bottom .nav-link{justify-content:center;padding:.625rem}
  .sidebar .nav-section::before{content:'';display:block;margin:.5rem .75rem;border-top:1px solid rgba(255,255,255,.08)}

  .kpi-grid{grid-template-columns:repeat(2,1fr)}
  .page-content{padding:1.25rem 1rem}
  .user-name{display:none}
}