/* Usina — sistema de design compartilhado (admin, cliente, agente)
   Referência visual: rede elétrica / medidores / sinalização industrial. */

:root {
  --bg: #0e0f13;
  --bg-2: #121419;
  --panel: #171a21;
  --panel-2: #1d2029;
  --line: #262a33;
  --line-2: #343945;
  --ink: #ece8df;
  --ink-2: #b9b4a9;
  --mute: #7f8593;
  --fil: #f5b942;          /* filamento: acento de sinalização */
  --fil-dim: rgba(245, 185, 66, .14);
  --ok: #4fcf8f;
  --ok-dim: rgba(79, 207, 143, .14);
  --err: #f0605d;
  --err-dim: rgba(240, 96, 93, .14);
  --cool: #7fb3ff;
  --display: 'Barlow Condensed', 'Arial Narrow', 'Helvetica Neue', sans-serif;
  --sans: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --rail: 224px;
  --r: 10px;
  --t: 160ms cubic-bezier(.2, .7, .2, 1);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 14px/1.5 var(--sans); -webkit-font-smoothing: antialiased;
  background-image:
    linear-gradient(to right, rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 40px 40px;
}
a { color: var(--cool); text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; }
:focus-visible { outline: 2px solid var(--fil); outline-offset: 2px; border-radius: 4px; }
::selection { background: var(--fil-dim); }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } }

/* ---------- casca: trilho + conteúdo ---------- */
.shell { display: grid; grid-template-columns: var(--rail) 1fr; min-height: 100vh; }
.rail { position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column; padding: 22px 16px 16px; background: var(--bg-2); border-right: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 10px; padding: 2px 8px 22px; }
.brand svg { width: 26px; height: 26px; flex: none; }
.brand b { font: 700 22px/1 var(--display); letter-spacing: .14em; text-transform: uppercase; }
.brand small { display: block; font: 500 11px/1 var(--display); letter-spacing: .18em; color: var(--mute); text-transform: uppercase; margin-top: 4px; }
.nav { display: flex; flex-direction: column; gap: 2px; }
.nav a { display: flex; align-items: center; gap: 10px; padding: 9px 10px; border-radius: 8px; color: var(--ink-2); font-weight: 500; transition: background var(--t), color var(--t); }
.nav a svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; opacity: .8; }
.nav a:hover { background: var(--panel); color: var(--ink); }
.nav a.on { background: var(--panel-2); color: var(--ink); box-shadow: inset 2px 0 0 var(--fil); }
.nav a .count { margin-left: auto; font: 500 12px var(--mono); color: var(--mute); }
.rail-foot { margin-top: auto; padding-top: 14px; border-top: 1px solid var(--line); font-size: 12px; color: var(--mute); display: flex; flex-direction: column; gap: 6px; }
.main { min-width: 0; padding: 28px 36px 60px; }
.page.enter { animation: rise var(--t) both; }
@keyframes rise { from { opacity: 0; transform: translateY(6px); } }

/* ---------- cabeçalho de página ---------- */
.ph { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 22px; }
.eyebrow { font: 600 12px/1 var(--display); letter-spacing: .2em; text-transform: uppercase; color: var(--fil); margin: 0 0 8px; }
.ph h1 { margin: 0; font: 600 34px/1 var(--display); letter-spacing: .01em; }
.ph p { margin: 6px 0 0; color: var(--mute); max-width: 60ch; }
.ph .actions { display: flex; gap: 8px; align-items: center; }

/* ---------- componentes ---------- */
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); padding: 16px 18px; }
.card.tight { padding: 12px 14px; }
.grid { display: grid; gap: 14px; }
.g2 { grid-template-columns: 1fr 1fr; } .g3 { grid-template-columns: repeat(3, 1fr); } .g4 { grid-template-columns: repeat(4, 1fr); }
.gauto { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
@media (max-width: 1100px) { .g3, .g4 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 760px) { .shell { grid-template-columns: 1fr; } .rail { position: static; height: auto; flex-direction: row; flex-wrap: wrap; align-items: center; } .nav { flex-direction: row; flex-wrap: wrap; } .rail-foot { display: none; } .main { padding: 18px 16px 40px; } .g2, .g3, .g4 { grid-template-columns: 1fr; } .ph { flex-direction: column; align-items: flex-start; } }

.stat { display: flex; flex-direction: column; gap: 4px; }
.stat .lbl { font: 600 11px/1 var(--display); letter-spacing: .18em; text-transform: uppercase; color: var(--mute); }
.stat .val { font: 600 40px/1 var(--display); font-variant-numeric: tabular-nums; letter-spacing: .01em; }
.stat .val small { font-size: 18px; color: var(--mute); margin-left: 4px; }
.stat .sub { font: 400 12px var(--mono); color: var(--mute); }

.sec { margin-top: 26px; }
.sec-h { display: flex; align-items: baseline; gap: 10px; margin: 0 0 10px; }
.sec-h h2 { margin: 0; font: 600 13px/1 var(--display); letter-spacing: .18em; text-transform: uppercase; color: var(--ink-2); }
.sec-h .n { font: 500 12px var(--mono); color: var(--mute); }
.sec-h .sp { flex: 1; }

/* medidor segmentado (assinatura) */
.meter { position: relative; height: 10px; border-radius: 3px; background: var(--panel-2); overflow: hidden; }
.meter i { position: absolute; inset: 0; width: 0%; background: var(--fil); transition: width 400ms ease; }
.meter i.ok { background: var(--ok); } .meter i.err { background: var(--err); } .meter i.cool { background: var(--cool); }
.meter::after { content: ''; position: absolute; inset: 0; background: repeating-linear-gradient(to right, transparent 0 8px, var(--panel) 8px 10px); pointer-events: none; }
.meter-row { display: grid; grid-template-columns: 150px 1fr 70px; gap: 12px; align-items: center; font-size: 13px; }
.meter-row .v { font: 500 12px var(--mono); color: var(--ink-2); text-align: right; }

.pill { display: inline-flex; align-items: center; gap: 6px; padding: 3px 9px; border-radius: 999px; background: var(--panel-2); border: 1px solid var(--line); font-size: 12px; color: var(--ink-2); white-space: nowrap; }
.pill.ok { color: var(--ok); border-color: rgba(79,207,143,.35); } .pill.err { color: var(--err); border-color: rgba(240,96,93,.35); } .pill.fil { color: var(--fil); border-color: rgba(245,185,66,.35); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--mute); display: inline-block; flex: none; }
.dot.ok { background: var(--ok); box-shadow: 0 0 8px var(--ok); } .dot.fil { background: var(--fil); box-shadow: 0 0 8px var(--fil); animation: pulse 1.2s infinite; } .dot.err { background: var(--err); }
@keyframes pulse { 50% { opacity: .35; } }
.tag { font: 500 11px var(--mono); padding: 2px 7px; border-radius: 4px; background: var(--panel-2); border: 1px solid var(--line); color: var(--ink-2); }
.mono { font-family: var(--mono); font-size: 12px; } .mute { color: var(--mute); } .ok { color: var(--ok); } .err { color: var(--err); } .fil { color: var(--fil); }
.num { font-variant-numeric: tabular-nums; }

.btn { display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; border-radius: 8px; border: 1px solid var(--line-2); background: var(--panel-2); color: var(--ink); font-weight: 500; transition: background var(--t), border-color var(--t), transform var(--t); }
.btn svg { width: 15px; height: 15px; stroke: currentColor; fill: none; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.btn:hover { background: var(--line); } .btn:active { transform: translateY(1px); }
.btn.primary { background: var(--fil); border-color: var(--fil); color: #1a1408; font-weight: 600; } .btn.primary:hover { background: #ffc85a; }
.btn.ghost { background: transparent; } .btn.danger { color: var(--err); } .btn.sm { padding: 5px 10px; font-size: 12px; }
.btn:disabled { opacity: .45; cursor: default; transform: none; }
input, select, textarea { background: var(--bg-2); color: var(--ink); border: 1px solid var(--line-2); border-radius: 8px; padding: 9px 12px; font: inherit; transition: border-color var(--t); }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--fil); }
input.sm { padding: 5px 8px; font-size: 13px; } input[type=number] { font-family: var(--mono); }
.field { display: grid; gap: 6px; } .field > span { font-size: 12px; color: var(--mute); }
.form-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px 18px; }
.switch { appearance: none; width: 36px; height: 20px; border-radius: 999px; background: var(--line-2); position: relative; cursor: pointer; transition: background var(--t); flex: none; }
.switch:checked { background: var(--ok); } .switch::after { content: ''; position: absolute; top: 2px; left: 2px; width: 16px; height: 16px; border-radius: 50%; background: #fff; transition: left var(--t); } .switch:checked::after { left: 18px; }

table { width: 100%; border-collapse: collapse; }
.tbl { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); overflow: auto; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { font: 600 11px/1 var(--display); letter-spacing: .16em; text-transform: uppercase; color: var(--mute); background: var(--bg-2); }
tr:last-child td { border-bottom: 0; }
tbody tr { transition: background var(--t); } tbody tr:hover { background: var(--panel-2); }
tr.link { cursor: pointer; }
td.r, th.r { text-align: right; } td.nowrap, th.nowrap { white-space: nowrap; } td.mono { font-family: var(--mono); font-size: 12px; white-space: nowrap; }
td.ell { max-width: 0; width: 40%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ell-s { max-width: 170px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
@media (max-width: 1440px) { .tbl .wide, .tbl th:has(> .wide) { display: none; } }
.empty { padding: 28px; text-align: center; color: var(--mute); border: 1px dashed var(--line-2); border-radius: var(--r); }
.empty b { display: block; color: var(--ink-2); font-weight: 500; margin-bottom: 4px; }

.kv { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; font-size: 13px; }
.kv b { color: var(--mute); font-weight: 500; }
pre.box { font: 12px/1.5 var(--mono); white-space: pre-wrap; background: var(--bg-2); border: 1px solid var(--line); padding: 12px; border-radius: 8px; max-height: 360px; overflow: auto; margin: 0; }
code { font-family: var(--mono); font-size: 12px; background: var(--bg-2); border: 1px solid var(--line); padding: 2px 6px; border-radius: 5px; }
.cmd { display: flex; align-items: center; gap: 8px; background: var(--bg-2); border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; }
.cmd code { background: none; border: 0; padding: 0; flex: 1; overflow: auto; white-space: nowrap; }
.log { font: 12px/1.6 var(--mono); background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--r); padding: 12px 14px; max-height: 70vh; overflow: auto; }
.log time { color: var(--mute); margin-right: 10px; }

.toast { position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%); background: var(--panel-2); border: 1px solid var(--line-2); border-radius: 8px; padding: 9px 14px; font-size: 13px; box-shadow: 0 12px 30px rgba(0,0,0,.4); animation: rise var(--t) both; z-index: 20; }
.toast.err { border-color: var(--err); }
.drawer-bg { position: fixed; inset: 0; background: rgba(8,9,12,.65); backdrop-filter: blur(2px); z-index: 10; animation: fade var(--t) both; }
@keyframes fade { from { opacity: 0; } }
.drawer { position: fixed; top: 0; right: 0; bottom: 0; width: min(760px, 94vw); background: var(--bg-2); border-left: 1px solid var(--line); overflow: auto; padding: 24px 28px; z-index: 11; animation: slide var(--t) both; }
@keyframes slide { from { transform: translateX(24px); opacity: 0; } }

/* ---------- login ---------- */
.gate { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.gate form { width: 360px; display: grid; gap: 12px; }
.gate .brand { padding: 0 0 8px; }
.tabs { display: flex; gap: 14px; border-bottom: 1px solid var(--line); margin-bottom: 4px; }
.tabs button { background: none; border: 0; padding: 8px 2px; color: var(--mute); border-bottom: 2px solid transparent; margin-bottom: -1px; font-weight: 500; }
.tabs button.on { color: var(--ink); border-color: var(--fil); }