/* ============================================================
   SCAH — Theme (estilo "command center" oscuro, ambar)
   Adaptado del boceto de referencia del cliente.
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Barlow:wght@300;400;500;600;700;800&family=Barlow+Condensed:wght@400;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg-void:    #080A0E;
  --bg-base:    #0D1017;
  --bg-surface: #121720;
  --bg-raised:  #181F2C;
  --bg-hover:   #1E2738;
  --bg-active:  #232E42;

  --border:     #1E2A3A;
  --border-mid: #253345;
  --border-hi:  #2E4060;

  --text-primary:   #E8EDF5;
  --text-secondary: #8A99B0;
  --text-muted:     #4A5568;
  --text-dim:       #2D3748;

  --amber:      #F5A623;
  --amber-dim:  #7A5010;
  --amber-glow: rgba(245,166,35,0.12);
  --red:        #E8404A;
  --red-dim:    #6B1A1F;
  --red-glow:   rgba(232,64,74,0.12);
  --green:      #3DD68C;
  --green-dim:  #1A5C3A;
  --green-glow: rgba(61,214,140,0.10);
  --blue:       #4A9EFF;
  --blue-dim:   #1A3D6B;
  --blue-glow:  rgba(74,158,255,0.10);

  --font-ui:   'Barlow', sans-serif;
  --font-head: 'Barlow Condensed', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --sidebar-width: 220px;
  --topbar-height: 60px;
  --radius: 12px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: var(--font-ui);
  background: var(--bg-void);
  color: var(--text-primary);
}
a { color: inherit; text-decoration: none; }

/* ---------- Layout general ---------- */
.app-layout {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  grid-template-rows: var(--topbar-height) 1fr;
  grid-template-areas: "sidebar topbar" "sidebar main";
  min-height: 100vh;
}

.topbar {
  grid-area: topbar;
  background: var(--bg-void);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px;
}
.topbar .page-title {
  font-family: var(--font-head); font-size: 1.1rem; font-weight: 800;
  letter-spacing: 0.04em; text-transform: uppercase; color: var(--text-primary);
}
.topbar .topbar-user { font-size: 0.82rem; color: var(--text-secondary); }
.topbar .topbar-user a { color: var(--text-muted); margin-left: 12px; }
.topbar .topbar-user a:hover { color: var(--amber); }

.sidebar {
  grid-area: sidebar;
  background: var(--bg-base);
  border-right: 1px solid var(--border);
  padding: 20px 0;
  overflow-x: hidden;
}
.sidebar-section { padding: 0 12px; margin-bottom: 6px; }
.sidebar-label {
  font-size: 0.62rem; font-weight: 700; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--text-dim); padding: 8px 12px 6px;
}
.sidebar a.sidebar-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: 7px;
  font-size: 0.82rem; font-weight: 500;
  color: var(--text-secondary); margin-bottom: 1px;
}
.sidebar a.sidebar-item:hover { background: var(--bg-raised); color: var(--text-primary); }
.sidebar a.sidebar-item.active {
  background: var(--amber-glow); color: var(--amber);
  border: 1px solid var(--amber-dim);
}
.sidebar-badge {
  margin-left: auto; font-family: var(--font-mono); font-size: 0.65rem;
  background: var(--red-dim); color: var(--red); padding: 1px 6px; border-radius: 10px;
}

.main-content { grid-area: main; padding: 24px; overflow-y: auto; }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 8px 16px; border-radius: 7px;
  font-family: var(--font-ui); font-size: 0.8rem; font-weight: 600;
  border: none; cursor: pointer;
}
.btn-primary { background: var(--amber); color: #000; }
.btn-primary:hover { background: #FFB733; }
.btn-ghost { background: var(--bg-raised); color: var(--text-secondary); border: 1px solid var(--border-mid); }
.btn-ghost:hover { background: var(--bg-hover); color: var(--text-primary); }

/* ---------- Cards ---------- */
.card { background: var(--bg-surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.card-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--border);
}
.card-title {
  font-family: var(--font-head); font-size: 0.85rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-secondary);
}

/* ---------- Stat cards (KPIs) ---------- */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 20px; }
@media (max-width: 820px) { .stats-grid { grid-template-columns: repeat(2, 1fr); } }
.stat-card {
  background: var(--bg-surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px 20px; position: relative; overflow: hidden;
}
.stat-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; }
.stat-card.amber::before { background: var(--amber); }
.stat-card.red::before   { background: var(--red); }
.stat-card.green::before { background: var(--green); }
.stat-card.blue::before  { background: var(--blue); }
.stat-label {
  font-size: 0.7rem; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--text-muted); margin-bottom: 10px;
}
.stat-value { font-family: var(--font-head); font-size: 2.2rem; font-weight: 800; line-height: 1; margin-bottom: 8px; }
.stat-card.amber .stat-value { color: var(--amber); }
.stat-card.red   .stat-value { color: var(--red); }
.stat-card.green .stat-value { color: var(--green); }
.stat-card.blue  .stat-value { color: var(--blue); }
.stat-delta { font-size: 0.72rem; color: var(--text-muted); }

/* ---------- Tabla ---------- */
.data-table { width: 100%; border-collapse: collapse; }
.data-table th {
  font-size: 0.68rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--text-muted); padding: 10px 16px; text-align: left;
  border-bottom: 1px solid var(--border); background: var(--bg-base);
}
.data-table td { padding: 12px 16px; font-size: 0.82rem; border-bottom: 1px solid var(--border); }
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--bg-raised); }
.data-table .code {
  font-family: var(--font-mono); font-size: 0.75rem; color: var(--amber);
  background: var(--amber-glow); padding: 2px 7px; border-radius: 4px;
}
.data-table .name { font-weight: 600; color: var(--text-primary); }
.data-table .sub  { font-size: 0.72rem; color: var(--text-muted); margin-top: 2px; }
.row-overdue td { background: rgba(232,64,74,0.04); }
.row-overdue td:first-child { border-left: 2px solid var(--red); }

/* ---------- Badges ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 0.68rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase;
  padding: 3px 9px; border-radius: 5px;
}
.badge::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: currentColor; }
.badge-available { background: var(--green-glow); color: var(--green); }
.badge-loaned     { background: var(--amber-glow); color: var(--amber); }
.badge-overdue    { background: var(--red-glow); color: var(--red); }
.badge-returned   { background: var(--green-glow); color: var(--green); }
.badge-maintenance{ background: var(--blue-glow); color: var(--blue); }

/* ---------- Barras de progreso / uso ---------- */
.chart-bar-wrap { padding: 20px; }
.chart-row { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.chart-row:last-child { margin-bottom: 0; }
.chart-label { font-size: 0.73rem; color: var(--text-secondary); width: 90px; text-align: right; flex-shrink: 0; }
.chart-track { flex: 1; height: 8px; background: var(--bg-raised); border-radius: 4px; overflow: hidden; }
.chart-fill { height: 100%; border-radius: 4px; }
.chart-fill.amber { background: linear-gradient(90deg, var(--amber-dim), var(--amber)); }
.chart-fill.green { background: linear-gradient(90deg, var(--green-dim), var(--green)); }
.chart-fill.red   { background: linear-gradient(90deg, var(--red-dim), var(--red)); }
.chart-fill.blue  { background: linear-gradient(90deg, var(--blue-dim), var(--blue)); }
.chart-val { font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-muted); width: 30px; }

/* ---------- Feed de actividad ---------- */
.feed-item { display: flex; gap: 14px; padding: 12px 20px; border-bottom: 1px solid var(--border); }
.feed-item:last-child { border-bottom: none; }
.feed-dot { width: 8px; height: 8px; border-radius: 50%; margin-top: 5px; flex-shrink: 0; }
.feed-text { font-size: 0.8rem; color: var(--text-secondary); line-height: 1.4; }
.feed-text strong { color: var(--text-primary); font-weight: 600; }
.feed-time { font-family: var(--font-mono); font-size: 0.68rem; color: var(--text-dim); margin-top: 3px; }

/* ---------- Grids ---------- */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 20px; }
.three-col { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 16px; margin-bottom: 20px; }
@media (max-width: 1000px) { .three-col, .two-col { grid-template-columns: 1fr; } }

/* ---------- Login / instalador ---------- */
.install-page, .login-page {
  display: flex; align-items: center; justify-content: center; min-height: 100vh; background: var(--bg-void);
}
.install-box, .login-box {
  background: var(--bg-surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 32px; width: 100%; max-width: 420px;
}
.install-box h1, .login-box h1 { font-family: var(--font-head); text-transform: uppercase; letter-spacing: .04em; }
.install-box h2 { margin-top: 24px; font-size: 15px; color: var(--text-secondary); font-family: var(--font-head); text-transform: uppercase; }
.install-box label, .login-box label { display: block; margin-bottom: 14px; font-size: 13px; color: var(--text-secondary); }
.install-box input, .login-box input {
  width: 100%; padding: 8px 10px; margin-top: 4px;
  background: var(--bg-raised); border: 1px solid var(--border-mid); border-radius: 7px;
  color: var(--text-primary); font-size: 14px;
}
.install-box button, .login-box button { margin-top: 6px; }

/* ---------- Formularios dentro de tarjetas (crear/editar cliente, herramienta, usuario, etc.) ---------- */
.form-fields label {
  display: block; margin-bottom: 14px; font-size: 13px; color: var(--text-secondary);
}
.form-fields input,
.form-fields select,
.form-fields textarea {
  width: 100%; padding: 8px 10px; margin-top: 4px;
  background: var(--bg-raised); border: 1px solid var(--border-mid); border-radius: 7px;
  color: var(--text-primary); font-size: 14px; font-family: var(--font-ui);
}
.form-fields input:disabled { opacity: 0.6; }
.form-fields input[type="file"] { padding: 6px 8px; }
.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 16px; list-style: none; font-size: 13px; }
.alert-error   { background: var(--red-glow);   color: var(--red);   border: 1px solid var(--red-dim); }
.alert-success { background: var(--green-glow); color: var(--green); border: 1px solid var(--green-dim); }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-base); }
::-webkit-scrollbar-thumb { background: var(--border-mid); border-radius: 3px; }