/* Neon / terminal "hackertyper" theme.
   Dense, operator-oriented UI — no framework, hand-tuned CSS.
   Class names are load-bearing (HTML + renderer/app.js reference them);
   this file only restyles, it doesn't rename anything. */

:root {
  /* Near-black base, faintly green-shifted like a phosphor display. */
  --bg: #03070a;
  --bg-elev: #070d12;
  --bg-elev-2: #0c151c;

  /* Phosphor-tinted text. */
  --fg: #d7f7ea;
  --fg-dim: #6f9b8e;
  --border: #123026;

  /* Neon accents. */
  --neon: #00ffa3;          /* primary — terminal green/cyan */
  --neon-soft: #19f9d8;
  --cyan: #38e1ff;
  --magenta: #ff3df0;

  --accent: var(--neon);
  --accent-hover: var(--neon-soft);
  --ok: #2bff88;
  --warn: #ffc44d;
  --danger: #ff3b6b;
  --danger-hover: #ff5d85;
  --info: var(--cyan);

  --mono: "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;

  /* Reusable glow shadows. */
  --glow-neon: 0 0 6px rgba(0, 255, 163, 0.55);
  --glow-neon-strong: 0 0 10px rgba(0, 255, 163, 0.7), 0 0 22px rgba(0, 255, 163, 0.35);
  --glow-danger: 0 0 8px rgba(255, 59, 107, 0.6);
  --glow-cyan: 0 0 8px rgba(56, 225, 255, 0.55);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--bg);
  color: var(--fg);
  /* Monospace everywhere — terminal feel. */
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.45;
}

/* Ambient phosphor vignette behind everything. */
body {
  background:
    radial-gradient(1200px 600px at 50% -10%, rgba(0, 255, 163, 0.08), transparent 60%),
    radial-gradient(900px 500px at 100% 110%, rgba(56, 225, 255, 0.06), transparent 60%),
    var(--bg);
}

/* CRT scanline + flicker overlay. Non-interactive, sits above content. */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  background: repeating-linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0) 0px,
    rgba(0, 0, 0, 0) 2px,
    rgba(0, 0, 0, 0.18) 3px,
    rgba(0, 0, 0, 0) 4px
  );
  mix-blend-mode: multiply;
  opacity: 0.5;
  animation: scanflicker 6s steps(60) infinite;
}
@keyframes scanflicker {
  0%, 97%, 100% { opacity: 0.5; }
  98% { opacity: 0.62; }
  99% { opacity: 0.42; }
}

::selection { background: rgba(0, 255, 163, 0.28); color: #fff; text-shadow: none; }

/* Neon scrollbars (WebKit / Chromium — Electron). */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-elev); }
::-webkit-scrollbar-thumb {
  background: #0f3a2c;
  border-radius: 6px;
  border: 1px solid var(--border);
}
::-webkit-scrollbar-thumb:hover { background: #135a44; box-shadow: var(--glow-neon); }

code {
  font-family: var(--mono);
  background: var(--bg-elev-2);
  padding: 1px 4px;
  border-radius: 3px;
  font-size: 12px;
  color: var(--neon-soft);
  border: 1px solid var(--border);
}
.muted { color: var(--fg-dim); }
.small { font-size: 12px; }
.hidden { display: none !important; }
.error { color: var(--danger); text-shadow: var(--glow-danger); }
.row { display: flex; gap: 8px; align-items: center; }
.inline { display: inline-flex; align-items: center; gap: 6px; }

.topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 16px;
  background: linear-gradient(180deg, rgba(0, 255, 163, 0.05), transparent), var(--bg-elev);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 0 rgba(0, 255, 163, 0.15), 0 6px 18px -10px rgba(0, 255, 163, 0.3);
}
.topbar .brand {
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--neon);
  text-shadow: var(--glow-neon-strong);
  animation: brandflicker 4.5s infinite;
}
.topbar .brand::before { content: "▌ "; color: var(--neon); opacity: 0.8; }
@keyframes brandflicker {
  0%, 19%, 21%, 55%, 57%, 100% { opacity: 1; text-shadow: var(--glow-neon-strong); }
  20% { opacity: 0.7; }
  56% { opacity: 0.85; text-shadow: var(--glow-neon); }
}
.topbar .session { margin-left: auto; color: var(--cyan); font-family: var(--mono); font-size: 12px; text-shadow: var(--glow-cyan); }

.view { display: flex; gap: 0; height: calc(100vh - 45px); }
#view-login { justify-content: center; align-items: flex-start; padding-top: 60px; }

.card {
  background: var(--bg-elev);
  border: 1px solid var(--neon);
  border-radius: 8px;
  padding: 24px;
  width: 440px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: var(--glow-neon-strong), inset 0 0 30px rgba(0, 255, 163, 0.05);
}
.card h1 { margin: 0 0 4px; font-size: 18px; color: var(--neon); text-shadow: var(--glow-neon); letter-spacing: 1px; }
.card p { margin: 0 0 8px; }

label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  color: var(--fg-dim);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
label.inline { flex-direction: row; align-items: center; gap: 6px; color: var(--fg); text-transform: none; letter-spacing: 0; }

input[type="text"], input[type="password"], input[type="url"],
input[type="number"], input[type="search"], input[type="datetime-local"],
select {
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  color: var(--fg);
  padding: 7px 9px;
  border-radius: 4px;
  font-size: 13px;
  font-family: var(--mono);
  outline: none;
  transition: border-color 0.12s ease, box-shadow 0.12s ease;
}
input::placeholder { color: #3f5e54; }
input:focus, select:focus {
  border-color: var(--neon);
  box-shadow: var(--glow-neon), inset 0 0 8px rgba(0, 255, 163, 0.12);
  caret-color: var(--neon);
}
/* Glowing checkbox accent. */
input[type="checkbox"] { accent-color: var(--neon); }

button {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.5px;
  padding: 7px 14px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: var(--bg-elev-2);
  color: var(--fg);
  cursor: pointer;
  transition: border-color 0.12s ease, box-shadow 0.12s ease, color 0.12s ease, background 0.12s ease;
}
button:hover:not(:disabled) { border-color: var(--neon); color: var(--neon); box-shadow: var(--glow-neon); }
button:disabled { opacity: 0.4; cursor: not-allowed; }

button.primary {
  background: rgba(0, 255, 163, 0.1);
  color: var(--neon);
  border-color: var(--neon);
  font-weight: 700;
  text-transform: uppercase;
  text-shadow: var(--glow-neon);
  box-shadow: var(--glow-neon), inset 0 0 10px rgba(0, 255, 163, 0.12);
}
button.primary:hover:not(:disabled) {
  background: rgba(0, 255, 163, 0.18);
  color: #002a1c;
  background-color: var(--neon);
  box-shadow: var(--glow-neon-strong);
  text-shadow: none;
}
button.ghost { background: transparent; }
button.ghost:hover:not(:disabled) { border-color: var(--cyan); color: var(--cyan); box-shadow: var(--glow-cyan); }

button.danger {
  background: rgba(255, 59, 107, 0.12);
  color: var(--danger);
  border-color: var(--danger);
  font-weight: 700;
  text-transform: uppercase;
  text-shadow: var(--glow-danger);
  box-shadow: var(--glow-danger), inset 0 0 10px rgba(255, 59, 107, 0.12);
}
button.danger:hover:not(:disabled) {
  background: var(--danger);
  color: #1a0008;
  border-color: var(--danger-hover);
  box-shadow: 0 0 12px rgba(255, 59, 107, 0.8), 0 0 26px rgba(255, 59, 107, 0.4);
  text-shadow: none;
}

.panel-left {
  width: 320px;
  padding: 16px;
  border-right: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(0, 255, 163, 0.03), transparent 240px), var(--bg-elev);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.panel-left h2 {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--neon);
  text-shadow: var(--glow-neon);
  margin: 12px 0 0;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--border);
}
.panel-left h2:first-child { margin-top: 0; }

.panel-main {
  flex: 1;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow: hidden;
}
.panel-main h2 { margin: 0; font-size: 15px; color: var(--fg); letter-spacing: 0.5px; }
.fleet-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; }
.fleet-head h2 span { color: var(--neon); text-shadow: var(--glow-neon); }

.selected-summary {
  background: var(--bg-elev-2);
  padding: 8px 10px;
  border-radius: 4px;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.selected-summary strong { color: var(--neon); text-shadow: var(--glow-neon); }

.fleet-table-wrap {
  flex: 1;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 4px;
  box-shadow: inset 0 0 24px rgba(0, 255, 163, 0.04);
}
.fleet-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}
.fleet-table thead th {
  position: sticky;
  top: 0;
  background: var(--bg-elev);
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--neon);
  color: var(--neon);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 700;
  text-shadow: var(--glow-neon);
  z-index: 1;
}
.fleet-table tbody td {
  padding: 6px 10px;
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 12px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 320px;
}
.fleet-table tbody tr:hover { background: rgba(0, 255, 163, 0.06); }
.fleet-table tbody tr.selected {
  background: rgba(0, 255, 163, 0.12);
  box-shadow: inset 3px 0 0 var(--neon), inset 0 0 18px rgba(0, 255, 163, 0.12);
}

.status-ok    { color: var(--ok); text-shadow: 0 0 6px rgba(43, 255, 136, 0.55); }
.status-warn  { color: var(--warn); text-shadow: 0 0 6px rgba(255, 196, 77, 0.5); }
.status-err   { color: var(--danger); text-shadow: var(--glow-danger); }
.status-info  { color: var(--info); text-shadow: var(--glow-cyan); }
.status-pending { color: var(--fg-dim); }

/* Compact FEC counter readout under the health pill in the preview
   table. Each line is "tail=value" so the operator can correlate with
   the same names used by the PON Manager UI (Pre-FEC BER etc.). */
.fec-cell { white-space: normal; max-width: 280px; }

/* Verify-view table cells contain stacked before/after blocks; let
   them wrap and align to the top so before/after lines line up. */
#verify-table tbody td { white-space: normal; vertical-align: top; }
#verify-table .delta-arrow { color: var(--neon); font-size: 11px; }
#verify-table .before-line, #verify-table .after-line { display: block; }
#verify-table .before-line { color: var(--fg-dim); font-size: 11px; }
.fec-pill { font-weight: 700; }
.fec-counters {
  display: block;
  margin-top: 3px;
  color: var(--fg-dim);
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.35;
}
.fec-counters .pre  { color: var(--warn); }
.fec-counters .post { color: var(--danger); }
.fec-counters .ok   { color: var(--fg-dim); }

.slot-arrow {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 3px;
  background: var(--bg-elev-2);
  border: 1px solid var(--neon);
  color: var(--neon);
  text-shadow: var(--glow-neon);
}