:root {
  --navy:       #0d1b2a;
  --navy2:      #112236;
  --navy3:      #16304d;
  --accent:     #00c2ff;
  --accent2:    #0098cc;
  --accent-dim: rgba(0,194,255,0.12);
  --steel:      #8faab8;
  --white:      #f0f6fb;
  --success:    #00e57a;
  --warn:       #ffb300;
  --danger:     #ff4444;
  --card:       rgba(255,255,255,0.04);
  --border:     rgba(0,194,255,0.13);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:var(--navy);
  color:var(--white);
  font-family:'Barlow',sans-serif;
  min-height:100vh;
  overflow-x:hidden;
}

/* ─── LOGIN ─── */
.login-screen{
  min-height:100vh;display:flex;align-items:center;justify-content:center;
  padding:20px;
  background:radial-gradient(circle at 20% 20%, rgba(0,194,255,.08), transparent 60%), var(--navy);
}
.login-card{
  width:380px;max-width:100%;
  background:var(--card);border:1px solid var(--border);border-radius:14px;
  padding:36px 30px;text-align:center;
}
.login-logo{
  font-family:'Rajdhani',sans-serif;font-size:28px;font-weight:700;
  letter-spacing:1px;margin-bottom:4px;
}
.login-logo .logo-accent{color:var(--accent);}
.login-sub{font-size:12px;color:var(--steel);margin-bottom:26px;}
.login-card .field{text-align:left;margin-bottom:16px;}
.login-msg{font-size:12.5px;color:var(--steel);margin-top:16px;line-height:1.6;}
.login-msg.success{color:var(--success);}
.login-msg.error{color:var(--danger);}
.hidden{display:none !important;}

/* ─── GRID LAYOUT ─── */
.app{display:grid;grid-template-columns:220px 1fr;grid-template-rows:auto 1fr auto;min-height:100vh;}

/* ─── FOOTER ─── */
.app-footer{
  grid-column:1/-1;
  background:var(--navy2);border-top:1px solid var(--border);
  padding:12px 24px;
  display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap;
}
.footer-text{font-size:11px;color:var(--steel);}
.footer-sep{font-size:11px;color:var(--border);}
.footer-logo{
  display:inline-flex;align-items:center;
  background:#fff;border-radius:5px;padding:3px 8px;
  height:20px;
}
.footer-logo img{height:100%;width:auto;display:block;}

/* ─── TOPBAR ─── */
.topbar{
  grid-column:1/-1;
  background:linear-gradient(90deg,var(--navy2) 0%,var(--navy3) 100%);
  border-bottom:1px solid var(--border);
  display:flex;align-items:center;gap:20px;
  padding:0 24px;height:58px;
  position:sticky;top:0;z-index:200;
}
.logo{
  font-family:'Rajdhani',sans-serif;
  font-size:22px;font-weight:700;
  color:var(--white);letter-spacing:1px;
  display:flex;align-items:center;gap:8px;
  white-space:nowrap;
}
.logo-accent{color:var(--accent);}
.logo-badge{
  background:var(--accent);color:var(--navy);
  font-size:9px;font-weight:700;padding:2px 6px;border-radius:3px;
  letter-spacing:1px;
}
.topbar-center{flex:1;display:flex;align-items:center;gap:16px;padding:0 24px;}
.project-selector{
  background:var(--accent-dim);border:1px solid var(--border);
  border-radius:8px;padding:7px 14px;
  color:var(--accent);font-family:'Rajdhani',sans-serif;
  font-size:14px;font-weight:600;cursor:pointer;outline:none;
  min-width:200px;
}
.project-selector option{background:var(--navy2);color:var(--white);}
.sync-indicator{
  display:flex;align-items:center;gap:6px;
  font-size:11px;color:var(--steel);
}
.sync-dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--success);
  box-shadow:0 0 8px var(--success);
  animation:pulse 2s infinite;
}
.sync-dot.off{background:var(--danger);box-shadow:0 0 8px var(--danger);animation:none;}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.4;}}
.topbar-right{display:flex;gap:10px;margin-left:auto;align-items:center;}
.hamburger{
  display:none;background:none;border:none;color:var(--white);
  font-size:20px;cursor:pointer;padding:4px 8px;flex-shrink:0;
}
.user-chip{
  display:flex;align-items:center;gap:8px;font-size:11px;color:var(--steel);
  padding:6px 10px;border:1px solid var(--border);border-radius:8px;
}
.user-chip .role-badge{
  font-size:9px;font-weight:700;padding:2px 7px;border-radius:20px;
  background:var(--accent-dim);color:var(--accent);letter-spacing:.5px;
}

/* ─── SIDEBAR ─── */
.sidebar{
  background:var(--navy2);
  border-right:1px solid var(--border);
  padding:20px 0;
  position:sticky;top:58px;
  height:calc(100vh - 58px);
  overflow-y:auto;
}
.sidebar-backdrop{display:none;}
.nav-group-label{
  font-size:9px;font-weight:700;letter-spacing:2px;
  text-transform:uppercase;color:var(--steel);
  padding:16px 20px 6px;
}
.nav-item{
  display:flex;align-items:center;gap:10px;
  padding:10px 20px;
  font-size:13px;font-weight:500;color:var(--steel);
  cursor:pointer;transition:all .15s;
  border-left:3px solid transparent;
  position:relative;
}
.nav-item:hover{color:var(--white);background:rgba(0,194,255,.05);}
.nav-item.active{
  color:var(--accent);background:var(--accent-dim);
  border-left-color:var(--accent);
}
.nav-icon{font-size:15px;width:18px;text-align:center;flex-shrink:0;}
.nav-badge{
  margin-left:auto;background:var(--danger);color:#fff;
  font-size:10px;font-weight:700;padding:1px 6px;border-radius:10px;
}

/* ─── MAIN ─── */
.main{padding:24px 28px;overflow-y:auto;}

/* ─── SECTION HANDLING ─── */
.section{display:none;}
.section.active{display:block;animation:fadeIn .25s ease;}
@keyframes fadeIn{from{opacity:0;transform:translateY(6px);}to{opacity:1;transform:none;}}

/* ─── PAGE TITLE ─── */
.page-header{margin-bottom:22px;}
.page-title{
  font-family:'Rajdhani',sans-serif;
  font-size:24px;font-weight:700;letter-spacing:.5px;
}
.page-sub{font-size:12px;color:var(--steel);margin-top:2px;}

/* ─── KPI GRID ─── */
.kpi-row{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-bottom:22px;}
.kpi{
  background:var(--card);border:1px solid var(--border);
  border-radius:10px;padding:16px;
  position:relative;overflow:hidden;
}
.kpi::after{
  content:'';position:absolute;top:0;left:0;right:0;height:2px;
}
.kpi.blue::after{background:var(--accent);}
.kpi.green::after{background:var(--success);}
.kpi.warn::after{background:var(--warn);}
.kpi.red::after{background:var(--danger);}
.kpi.steel::after{background:var(--steel);}
.kpi-lbl{font-size:10px;text-transform:uppercase;letter-spacing:1.5px;color:var(--steel);margin-bottom:8px;}
.kpi-val{font-family:'Rajdhani',sans-serif;font-size:32px;font-weight:700;}
.kpi.blue .kpi-val{color:var(--accent);}
.kpi.green .kpi-val{color:var(--success);}
.kpi.warn .kpi-val{color:var(--warn);}
.kpi.red .kpi-val{color:var(--danger);}
.kpi.steel .kpi-val{color:var(--steel);}
.kpi-sub{font-size:11px;color:var(--steel);margin-top:4px;}

/* ─── CARDS ─── */
.card{
  background:var(--card);border:1px solid var(--border);
  border-radius:10px;overflow:hidden;margin-bottom:20px;
}
.card-header{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 20px;border-bottom:1px solid var(--border);
  background:rgba(0,0,0,.1);
}
.card-title{
  font-family:'Rajdhani',sans-serif;font-size:14px;
  font-weight:700;text-transform:uppercase;letter-spacing:1px;
  color:var(--accent);
}
.card-actions{display:flex;gap:8px;}

/* ─── FILTER BAR ─── */
.filter-bar{display:flex;gap:8px;flex-wrap:wrap;padding:14px 20px;border-bottom:1px solid var(--border);}
.chip{
  padding:5px 13px;border-radius:20px;font-size:11px;font-weight:600;
  border:1px solid var(--border);color:var(--steel);
  background:none;cursor:pointer;transition:all .15s;
  font-family:'Barlow',sans-serif;
}
.chip:hover{border-color:var(--accent);color:var(--accent);}
.chip.active{background:var(--accent);color:var(--navy);border-color:var(--accent);}

/* ─── SEARCH ─── */
.search-wrap{display:flex;align-items:center;gap:8px;background:rgba(255,255,255,.04);border:1px solid var(--border);border-radius:7px;padding:7px 12px;}
.search-wrap input{background:none;border:none;outline:none;color:var(--white);font-family:'Barlow',sans-serif;font-size:13px;width:180px;}
.search-wrap input::placeholder{color:var(--steel);}

/* ─── TABLE ─── */
.tbl-wrap{overflow-x:auto;}
table{width:100%;border-collapse:collapse;}
thead th{
  padding:11px 14px;text-align:left;
  font-size:9px;font-weight:700;text-transform:uppercase;letter-spacing:1.5px;
  color:var(--steel);background:rgba(0,0,0,.18);
  border-bottom:1px solid var(--border);white-space:nowrap;
}
tbody tr{border-bottom:1px solid rgba(0,194,255,.05);transition:background .12s;}
tbody tr:hover{background:rgba(0,194,255,.04);}
tbody tr:last-child{border-bottom:none;}
tbody td{padding:11px 14px;font-size:12.5px;vertical-align:middle;}

/* ─── BADGES ─── */
.badge{display:inline-block;padding:3px 9px;border-radius:20px;font-size:10px;font-weight:700;letter-spacing:.3px;}
.b-ok{background:rgba(0,229,122,.12);color:var(--success);}
.b-low{background:rgba(255,179,0,.12);color:var(--warn);}
.b-crit{background:rgba(255,68,68,.12);color:var(--danger);}
.b-cat{background:var(--accent-dim);color:var(--accent);font-size:9px;}
.b-proj{background:rgba(255,255,255,.07);color:var(--white);font-size:9px;}
.b-admin{background:rgba(255,179,0,.15);color:var(--warn);}
.b-editor{background:rgba(0,229,122,.15);color:var(--success);}
.b-viewer{background:rgba(0,194,255,.15);color:var(--accent);}

/* ─── STOCK BAR ─── */
.sbar{width:70px;height:4px;background:rgba(255,255,255,.08);border-radius:2px;}
.sbar-fill{height:100%;border-radius:2px;transition:width .4s;}
.sbar-ok{background:var(--success);}
.sbar-low{background:var(--warn);}
.sbar-crit{background:var(--danger);}

/* ─── ACTION BTNS ─── */
.abt{background:none;border:none;cursor:pointer;font-size:13px;padding:4px 5px;border-radius:4px;color:var(--steel);transition:all .15s;}
.abt:hover{background:rgba(255,255,255,.08);color:var(--white);}

/* ─── BUTTONS ─── */
.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:7px;border:none;font-family:'Barlow',sans-serif;font-size:12px;font-weight:600;cursor:pointer;transition:all .2s;white-space:nowrap;}
.btn:disabled{opacity:.4;cursor:not-allowed;}
.btn-primary{background:var(--accent);color:var(--navy);}
.btn-primary:hover{background:var(--accent2);transform:translateY(-1px);}
.btn-outline{background:transparent;border:1px solid var(--border);color:var(--accent);}
.btn-outline:hover{border-color:var(--accent);background:var(--accent-dim);}
.btn-success{background:rgba(0,229,122,.15);border:1px solid rgba(0,229,122,.3);color:var(--success);}
.btn-success:hover{background:rgba(0,229,122,.25);}
.btn-danger{background:rgba(255,68,68,.15);border:1px solid rgba(255,68,68,.3);color:var(--danger);}
.btn-danger:hover{background:rgba(255,68,68,.25);}
.btn-warn{background:rgba(255,179,0,.15);border:1px solid rgba(255,179,0,.3);color:var(--warn);}
.btn-warn:hover{background:rgba(255,179,0,.25);}
.btn-sm{padding:5px 10px;font-size:11px;}
.btn-xl{padding:12px 24px;font-size:14px;font-weight:700;}

/* ─── FORMS ─── */
.form-grid{display:grid;gap:14px;}
.form-grid.cols2{grid-template-columns:1fr 1fr;}
.form-grid.cols3{grid-template-columns:1fr 1fr 1fr;}
.field label{display:block;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:1.2px;color:var(--steel);margin-bottom:6px;}
.field input,.field select,.field textarea{
  width:100%;background:rgba(255,255,255,.05);
  border:1px solid var(--border);border-radius:7px;
  padding:9px 12px;color:var(--white);
  font-family:'Barlow',sans-serif;font-size:13px;outline:none;
  transition:border-color .2s;
}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--accent);}
.field select option{background:var(--navy2);}
.field textarea{resize:vertical;min-height:60px;}
.field-hint{font-size:11px;color:var(--steel);margin-top:6px;}

/* ─── MODAL ─── */
.overlay{
  display:none;position:fixed;inset:0;
  background:rgba(0,0,0,.75);backdrop-filter:blur(4px);
  z-index:500;align-items:center;justify-content:center;padding:20px;
}
.overlay.open{display:flex;}
.modal{
  background:var(--navy2);border:1px solid var(--border);
  border-radius:14px;width:520px;max-width:100%;
  max-height:90vh;overflow-y:auto;
  box-shadow:0 30px 80px rgba(0,0,0,.6);
}
.modal-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:20px 24px;border-bottom:1px solid var(--border);
}
.modal-title{font-family:'Rajdhani',sans-serif;font-size:18px;font-weight:700;color:var(--accent);letter-spacing:.5px;}
.modal-close{background:none;border:none;font-size:20px;color:var(--steel);cursor:pointer;line-height:1;}
.modal-close:hover{color:var(--white);}
.modal-body{padding:24px;}
.modal-foot{display:flex;gap:10px;justify-content:flex-end;padding:16px 24px;border-top:1px solid var(--border);}

/* ─── HISTORIAL ─── */
.hist-row{
  display:flex;align-items:center;gap:14px;
  padding:12px 20px;border-bottom:1px solid rgba(0,194,255,.05);
  font-size:12.5px;
}
.hist-row:last-child{border:none;}
.hist-ico{
  width:34px;height:34px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;flex-shrink:0;
}
.ico-in{background:rgba(0,229,122,.12);}
.ico-out{background:rgba(255,68,68,.12);}
.hist-meta{flex:1;}
.hist-name{font-weight:600;}
.hist-detail{font-size:11px;color:var(--steel);margin-top:2px;}
.hist-photo{width:34px;height:34px;object-fit:cover;border-radius:6px;border:1px solid var(--border);flex-shrink:0;}
.hist-qty{font-family:'Rajdhani',sans-serif;font-size:18px;font-weight:700;}
.hist-qty.pos{color:var(--success);}
.hist-qty.neg{color:var(--danger);}

/* ─── ALERT ITEM ─── */
.alert-row{
  display:flex;align-items:center;gap:14px;
  padding:13px 20px;border-bottom:1px solid rgba(0,194,255,.05);
}
.alert-row:last-child{border:none;}
.alert-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0;}
.dot-crit{background:var(--danger);box-shadow:0 0 8px var(--danger);}
.dot-low{background:var(--warn);box-shadow:0 0 8px var(--warn);}
.alert-info{flex:1;}
.alert-name{font-weight:600;font-size:13px;}
.alert-sub{font-size:11px;color:var(--steel);margin-top:2px;}
.alert-stock{font-family:'Rajdhani',sans-serif;font-size:20px;font-weight:700;margin-left:auto;}

/* ─── GRIDS DE SECCIÓN ─── */
.dash-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.proyectos-grid{display:grid;grid-template-columns:300px 1fr;gap:20px;}
.accesos-grid{display:grid;grid-template-columns:360px 1fr;gap:20px;}
.exportar-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}

/* ─── CONSUMO PANEL ─── */
.consumo-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.consumo-preview{
  background:rgba(0,0,0,.2);border:1px solid var(--border);
  border-radius:8px;padding:16px;margin-top:14px;
}
.preview-row{display:flex;justify-content:space-between;padding:6px 0;font-size:13px;border-bottom:1px solid rgba(255,255,255,.05);}
.preview-row:last-child{border:none;font-weight:700;font-size:14px;padding-top:10px;}
.preview-label{color:var(--steel);}
.preview-after{color:var(--accent);}

/* ─── EMPTY ─── */
.empty{text-align:center;padding:48px;color:var(--steel);}
.empty-icon{font-size:36px;opacity:.3;margin-bottom:12px;}
.empty-text{font-size:13px;}

/* ─── TOAST ─── */
.toast-wrap{position:fixed;bottom:24px;right:24px;z-index:999;display:flex;flex-direction:column;gap:8px;}
.toast{
  background:var(--navy3);border:1px solid var(--border);
  border-radius:8px;padding:12px 18px;
  font-size:13px;display:flex;align-items:center;gap:10px;
  box-shadow:0 8px 30px rgba(0,0,0,.4);
  animation:slideIn .3s ease;min-width:280px;
}
@keyframes slideIn{from{transform:translateX(100%);opacity:0;}to{transform:none;opacity:1;}}
.toast.success{border-left:3px solid var(--success);}
.toast.error{border-left:3px solid var(--danger);}
.toast.warn{border-left:3px solid var(--warn);}

/* ─── INLINE FORM ─── */
.inline-form{padding:22px 20px;}

/* ─── PROJECT TAG ─── */
.proj-dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:6px;}

/* ─── ACCESOS ─── */
.access-row{
  display:flex;align-items:center;gap:14px;
  padding:13px 20px;border-bottom:1px solid rgba(0,194,255,.05);
  flex-wrap:wrap;
}
.access-row:last-child{border:none;}
.access-info{flex:1;min-width:160px;}
.access-name{font-weight:600;font-size:13px;}
.access-email{font-size:11px;color:var(--steel);}
.access-grants{display:flex;gap:6px;flex-wrap:wrap;}

/* ─── SCROLLBAR ─── */
::-webkit-scrollbar{width:5px;height:5px;}
::-webkit-scrollbar-track{background:transparent;}
::-webkit-scrollbar-thumb{background:rgba(0,194,255,.15);border-radius:3px;}

/* RESPONSIVE */
@media(max-width:768px){
  .app{grid-template-columns:1fr;}
  .hamburger{display:block;}

  /* sidebar pasa a ser un drawer deslizable en vez de desaparecer */
  .sidebar{
    display:block;position:fixed;top:58px;left:0;bottom:0;
    width:240px;transform:translateX(-100%);
    transition:transform .25s ease;z-index:400;
  }
  .sidebar.open{transform:translateX(0);box-shadow:12px 0 30px rgba(0,0,0,.5);}
  .sidebar-backdrop{
    display:none;position:fixed;top:58px;left:0;right:0;bottom:0;
    background:rgba(0,0,0,.55);z-index:399;
  }
  .sidebar-backdrop.open{display:block;}

  /* topbar: permite que los botones bajen a una segunda fila si no caben */
  .topbar{flex-wrap:wrap;height:auto;min-height:58px;padding:10px 14px;gap:10px;}
  .topbar-center{order:3;flex:1 1 100%;padding:0;gap:10px;}
  .project-selector{min-width:0;flex:1;}
  .sync-indicator{display:none;}
  .topbar-right{gap:6px;flex-wrap:wrap;}
  .topbar-right .btn span{display:none;}
  #btn-export-excel,#btn-entrada,#btn-material{padding:7px 10px;}
  .user-chip #user-email{display:none;}

  .main{padding:16px;}
  .page-title{font-size:20px;}

  .kpi-row{grid-template-columns:repeat(2,1fr);}
  .dash-grid,.proyectos-grid,.accesos-grid,.exportar-grid,.consumo-grid{grid-template-columns:1fr;}
  .form-grid.cols2,.form-grid.cols3{grid-template-columns:1fr;}

  .modal{width:100%;border-radius:12px;}
  .modal-body{padding:18px;}

  .alert-row{flex-wrap:wrap;}
  .alert-stock{margin-left:0;}
}

@media(max-width:420px){
  .kpi-row{grid-template-columns:1fr 1fr;}
  .kpi-val{font-size:26px;}
  .search-wrap input{width:120px;}
}