/*
 * copilot.css
 * EnergizeOS Microgrid EMS — Phase 2 Copilot
 *
 * Shared stylesheet for all copilot-ph2 pages.
 * Design tokens: EnergizeOS Slate & Volt system.
 * Mobile-responsive: 900px tablet + 480px mobile breakpoints.
 */

/* ------------------------------------------------------------------ tokens */
:root {
  --slate:   #1A2B3C;
  --mid:     #2E4A6E;
  --volt:    #D4840A;
  --tint:    #FDF4E7;
  --paper:   #FCFCFA;
  --ink:     #27313C;
  --muted:   #5E6B78;
  --line:    #E3E0D8;
  --good:    #1A7A4A;
  --good-bg: #EAF7EF;
  --warn:    #B45309;
  --warn-bg: #FEF3C7;
  --bad:     #B91C1C;
  --bad-bg:  #FEE2E2;
  --info:    #1D4ED8;
  --info-bg: #EFF6FF;
}

/* ----------------------------------------------------------------- reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}
body {
  font-family: 'DM Sans', Arial, sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  overflow-x: hidden;
}
h1, h2, h3, h4, p, li, td, th, div, span {
  word-wrap: break-word;
  overflow-wrap: break-word;
}
a { color: var(--mid); }
code, .mono {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.88em;
}

/* ---------------------------------------------------------------- header */
header {
  position: sticky; top: 0; z-index: 60;
  background: rgba(252, 252, 250, 0.95);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.hwrap {
  max-width: 1280px; margin: 0 auto;
  padding: 0 24px; height: 60px;
  display: flex; align-items: center;
  justify-content: space-between; gap: 14px;
}
.brand {
  display: flex; align-items: center;
  gap: 10px; text-decoration: none;
  flex-shrink: 0;
}
.brand .mark {
  width: 20px; height: 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 2px;
}
.brand .mark i { display: block; }
.brand .mark i:nth-child(1), .brand .mark i:nth-child(4) { background: var(--slate); }
.brand .mark i:nth-child(2), .brand .mark i:nth-child(3) { background: var(--volt); }
.brand b {
  font-family: 'Playfair Display', serif;
  font-size: 0.98rem; color: var(--slate); font-weight: 700;
}
.brand span {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.64rem; letter-spacing: 0.14em;
  color: var(--muted); text-transform: uppercase;
  border-left: 1px solid var(--line); padding-left: 10px;
}
nav.top {
  display: flex; gap: 4px; flex-wrap: nowrap; overflow: hidden;
}
nav.top a {
  font-size: 0.78rem; font-weight: 500;
  text-decoration: none; color: var(--muted);
  padding: 6px 10px; border-radius: 5px;
  white-space: nowrap;
  transition: background 0.12s;
}
nav.top a:hover { background: #F0F0EC; color: var(--slate); }
nav.top a.active {
  background: var(--slate); color: #fff;
}
.burger {
  display: none; background: none;
  border: 1px solid var(--line); border-radius: 6px;
  width: 40px; height: 36px; cursor: pointer;
  flex-direction: column; align-items: center;
  justify-content: center; gap: 4px;
}
.burger i { width: 16px; height: 2px; background: var(--slate); display: block; }
.mnav {
  display: none;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  padding: 8px 24px 16px;
}
.mnav a {
  display: block; padding: 10px 0;
  text-decoration: none; color: var(--ink);
  font-size: 0.92rem;
  border-bottom: 1px solid var(--line);
}
.mnav a.active { color: var(--volt); font-weight: 600; }

/* ----------------------------------------------------------------- layout */
.page-wrap {
  max-width: 1280px; margin: 0 auto;
  padding: 0 24px 80px;
}
.page-hero {
  padding: 36px 0 20px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 28px;
}
.eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.68rem; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--volt);
  margin-bottom: 8px;
}
.page-hero h1 {
  font-family: 'Playfair Display', serif;
  font-size: 2rem; color: var(--slate);
  font-weight: 700; line-height: 1.2;
}
.page-hero p {
  margin-top: 8px; font-size: 0.96rem;
  color: var(--muted); max-width: 720px;
}
.ph2-badge {
  display: inline-block;
  background: var(--volt); color: #fff;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.65rem; letter-spacing: 0.1em;
  padding: 3px 8px; border-radius: 3px;
  text-transform: uppercase; margin-left: 10px;
  vertical-align: middle;
}

/* -------------------------------------------------------------- two-column */
.two-col {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 24px;
  align-items: start;
}
.two-col.wide-right { grid-template-columns: 1fr 480px; }

/* ----------------------------------------------------------------- cards */
.card {
  background: #fff; border: 1px solid var(--line);
  border-radius: 10px; padding: 20px;
}
.card h2 {
  font-family: 'Playfair Display', serif;
  font-size: 1.12rem; color: var(--slate);
  margin-bottom: 14px;
}
.card h3 {
  font-size: 0.84rem; font-weight: 600;
  color: var(--muted); text-transform: uppercase;
  letter-spacing: 0.1em; margin: 16px 0 8px;
}
.card h3:first-child { margin-top: 0; }

/* -------------------------------------------------------------- status pills */
.pill {
  display: inline-block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.08em; padding: 3px 10px;
  border-radius: 20px; text-transform: uppercase;
}
.pill.good    { background: var(--good-bg);  color: var(--good); }
.pill.warn    { background: var(--warn-bg);  color: var(--warn); }
.pill.bad     { background: var(--bad-bg);   color: var(--bad);  }
.pill.info    { background: var(--info-bg);  color: var(--info); }
.pill.neutral { background: #F0F0EC;         color: var(--muted);}

/* -------------------------------------------------------------- metrics */
.metric-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px; margin-bottom: 16px;
}
.metric {
  background: var(--paper); border: 1px solid var(--line);
  border-radius: 8px; padding: 12px 14px;
}
.metric .label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.66rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--muted);
  margin-bottom: 4px;
}
.metric .value {
  font-size: 1.4rem; font-weight: 700;
  color: var(--slate); line-height: 1.1;
}
.metric .sub {
  font-size: 0.75rem; color: var(--muted); margin-top: 2px;
}
.metric.highlight { border-left: 3px solid var(--volt); }
.metric.alert-bad { border-left: 3px solid var(--bad); background: var(--bad-bg); }
.metric.alert-good { border-left: 3px solid var(--good); }

/* -------------------------------------------------------------- interlocks */
.interlock-grid {
  display: flex; flex-direction: column; gap: 6px;
}
.interlock-row {
  display: grid;
  grid-template-columns: 42px 24px 1fr;
  gap: 8px; align-items: start;
  padding: 8px 10px; border-radius: 7px;
  background: var(--paper); border: 1px solid var(--line);
  transition: border-color 0.15s;
}
.interlock-row.il-true  { border-left: 3px solid var(--good); }
.interlock-row.il-false { border-left: 3px solid var(--bad); background: var(--bad-bg); }
.il-id {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.78rem; font-weight: 600;
  color: var(--slate);
}
.il-icon { font-size: 1rem; line-height: 1; margin-top: 1px; }
.il-body {}
.il-label { font-size: 0.86rem; font-weight: 600; color: var(--ink); }
.il-detail { font-size: 0.76rem; color: var(--muted); margin-top: 2px; }
.il-block  { font-size: 0.76rem; color: var(--bad);  margin-top: 2px; font-weight: 500; }

/* -------------------------------------------------------- power flow bar */
.flow-bar-wrap { margin: 14px 0; }
.flow-bar-label {
  display: flex; justify-content: space-between;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem; color: var(--muted);
  margin-bottom: 4px;
}
.flow-bar {
  height: 14px; background: var(--line);
  border-radius: 7px; overflow: hidden;
  position: relative;
}
.flow-bar-fill {
  height: 100%; border-radius: 7px;
  transition: width 0.4s ease, background 0.3s;
}

/* ------------------------------------------------------- control buttons */
.btn {
  display: inline-flex; align-items: center;
  gap: 6px; font-size: 0.86rem; font-weight: 600;
  padding: 9px 18px; border-radius: 6px;
  border: none; cursor: pointer;
  transition: opacity 0.15s, transform 0.1s;
  text-decoration: none;
}
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }
.btn-primary { background: var(--slate); color: #fff; }
.btn-danger  { background: var(--bad);   color: #fff; }
.btn-warn    { background: var(--volt);  color: #fff; }
.btn-ghost   { background: transparent; color: var(--slate);
               border: 1px solid var(--slate); }
.btn-good    { background: var(--good);  color: #fff; }
.btn-sm { font-size: 0.78rem; padding: 6px 12px; }

/* ----------------------------------------------------------- fault toggles */
.fault-panel { margin-top: 14px; }
.fault-row {
  display: flex; align-items: center;
  justify-content: space-between;
  padding: 8px 0; border-bottom: 1px solid var(--line);
  font-size: 0.86rem;
}
.fault-row:last-child { border-bottom: none; }
.toggle-wrap { display: flex; align-items: center; gap: 8px; }
.toggle {
  position: relative; width: 38px; height: 20px;
  cursor: pointer;
}
.toggle input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
  position: absolute; inset: 0;
  background: var(--line); border-radius: 20px;
  transition: background 0.2s;
}
.toggle-slider::before {
  content: ""; position: absolute;
  height: 14px; width: 14px; left: 3px; bottom: 3px;
  background: #fff; border-radius: 50%;
  transition: transform 0.2s;
}
.toggle input:checked + .toggle-slider { background: var(--bad); }
.toggle input:checked + .toggle-slider::before { transform: translateX(18px); }

/* ------------------------------------------------------------ state badge */
.state-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--slate); color: #fff;
  padding: 8px 16px; border-radius: 7px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.82rem; font-weight: 600;
  letter-spacing: 0.06em;
}
.state-badge.island   { background: var(--warn); }
.state-badge.lockout  { background: var(--bad); }
.state-badge.sync     { background: var(--info); }
.state-badge.reclose  { background: var(--good); }
.state-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: rgba(255,255,255,0.6);
  animation: pulse 1.5s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 0.6; }
  50%       { opacity: 1; transform: scale(1.3); }
}

/* -------------------------------------------------------------- event log */
.event-log {
  max-height: 260px; overflow-y: auto;
  font-size: 0.76rem; font-family: 'IBM Plex Mono', monospace;
}
.event-row {
  display: grid;
  grid-template-columns: 70px 52px 62px 1fr;
  gap: 6px; padding: 5px 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}
.ev-ts    { color: var(--muted); }
.ev-sev   { font-weight: 600; }
.ev-cat   { color: var(--muted); }
.ev-msg   { color: var(--ink); }
.ev-sev.INFO     { color: var(--info); }
.ev-sev.WARNING  { color: var(--warn); }
.ev-sev.CRITICAL { color: var(--bad); }

/* --------------------------------------------------------- AI Copilot panel */
.copilot-panel {
  position: fixed;
  bottom: 0; right: 24px;
  width: 400px; max-height: 560px;
  background: #fff; border: 1px solid var(--line);
  border-top-left-radius: 12px; border-top-right-radius: 12px;
  box-shadow: 0 -4px 24px rgba(0,0,0,0.10);
  display: flex; flex-direction: column;
  z-index: 100;
  transition: transform 0.25s ease;
}
.copilot-panel.collapsed { transform: translateY(calc(100% - 52px)); }
.copilot-header {
  display: flex; align-items: center;
  justify-content: space-between;
  padding: 0 16px; height: 52px;
  border-bottom: 1px solid var(--line);
  cursor: pointer; user-select: none;
  background: var(--slate); border-radius: inherit;
  border-bottom-left-radius: 0; border-bottom-right-radius: 0;
}
.copilot-header span {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.8rem; font-weight: 600;
  color: #fff; letter-spacing: 0.06em;
}
.copilot-toggle-btn {
  background: none; border: none; cursor: pointer;
  color: rgba(255,255,255,0.7); font-size: 1rem;
  line-height: 1; padding: 4px;
}
.copilot-messages {
  flex: 1; overflow-y: auto;
  padding: 14px 16px; display: flex;
  flex-direction: column; gap: 10px;
}
.msg-bubble {
  max-width: 90%; padding: 10px 13px;
  border-radius: 10px; font-size: 0.86rem;
  line-height: 1.5;
}
.msg-bubble.user {
  background: var(--slate); color: #fff;
  align-self: flex-end;
  border-bottom-right-radius: 3px;
}
.msg-bubble.assistant {
  background: var(--paper); border: 1px solid var(--line);
  align-self: flex-start;
  border-bottom-left-radius: 3px;
  white-space: pre-wrap;
}
.msg-bubble.assistant strong { font-weight: 700; }
.msg-typing {
  background: var(--paper); border: 1px solid var(--line);
  align-self: flex-start; border-radius: 10px;
  padding: 10px 14px; font-size: 0.8rem;
  color: var(--muted); font-style: italic;
  display: none;
}
.copilot-input-row {
  display: flex; gap: 8px;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
}
.copilot-input {
  flex: 1; border: 1px solid var(--line);
  border-radius: 6px; padding: 8px 12px;
  font-size: 0.86rem; font-family: inherit;
  resize: none; line-height: 1.4;
  max-height: 80px; overflow-y: auto;
  background: var(--paper);
}
.copilot-input:focus { outline: none; border-color: var(--mid); }
.copilot-send {
  background: var(--volt); color: #fff;
  border: none; border-radius: 6px;
  padding: 8px 14px; cursor: pointer;
  font-size: 0.9rem; line-height: 1;
  flex-shrink: 0;
}
.copilot-send:disabled { opacity: 0.4; cursor: not-allowed; }
.copilot-quick {
  display: flex; flex-wrap: wrap; gap: 6px;
  padding: 8px 14px 2px; border-top: 1px solid var(--line);
}
.q-chip {
  font-size: 0.72rem; padding: 4px 9px;
  border: 1px solid var(--line); border-radius: 20px;
  cursor: pointer; background: var(--paper);
  color: var(--muted); transition: background 0.12s;
  white-space: nowrap;
}
.q-chip:hover { background: var(--tint); color: var(--volt); border-color: var(--volt); }

/* ------------------------------------------------------------ toast alerts */
.toast-container {
  position: fixed; top: 72px; right: 20px;
  display: flex; flex-direction: column; gap: 8px;
  z-index: 200; pointer-events: none;
}
.toast {
  background: var(--slate); color: #fff;
  padding: 12px 18px; border-radius: 8px;
  font-size: 0.84rem; max-width: 340px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.18);
  animation: slideIn 0.2s ease, fadeOut 0.4s ease 3.6s forwards;
  pointer-events: auto;
}
.toast.warn { background: var(--warn); }
.toast.error { background: var(--bad); }
.toast.success { background: var(--good); }
@keyframes slideIn { from { transform: translateX(120px); opacity: 0; } to { transform: none; opacity: 1; } }
@keyframes fadeOut { to { opacity: 0; transform: translateX(40px); } }

/* --------------------------------------------------------- chart container */
.chart-wrap {
  position: relative; width: 100%;
  margin: 12px 0;
}

/* -------------------------------------------------------- info note */
.note {
  background: var(--tint); border-left: 3px solid var(--volt);
  padding: 12px 16px; border-radius: 0 6px 6px 0;
  font-size: 0.86rem; margin: 14px 0;
}
.note.alert { background: var(--bad-bg); border-left-color: var(--bad); }
.note.good  { background: var(--good-bg); border-left-color: var(--good); }

/* ------------------------------------------------------------ table */
.tablewrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.86rem; }
th {
  text-align: left; padding: 8px 10px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.68rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--muted);
  border-bottom: 2px solid var(--slate);
}
td { padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }

/* ------------------------------------------------------------ footer */
footer {
  border-top: 1px solid var(--line);
  padding: 24px; font-size: 0.78rem;
  color: var(--muted);
}
footer .fwrap {
  max-width: 1280px; margin: 0 auto;
  display: flex; justify-content: space-between;
  gap: 12px; flex-wrap: wrap;
}
footer a { color: var(--muted); }

/* ======================================================== RESPONSIVE ===== */
/* 900px — tablet */
@media (max-width: 900px) {
  nav.top    { display: none; }
  .burger    { display: flex; }
  .mnav.open { display: block; }
  .two-col,
  .two-col.wide-right { grid-template-columns: 1fr; }
  .metric-grid { grid-template-columns: repeat(2, 1fr); }
  .copilot-panel { width: 100%; right: 0; border-radius: 12px 12px 0 0; }
}

/* 480px — mobile */
@media (max-width: 480px) {
  .page-hero h1 { font-size: 1.5rem; }
  .hwrap { padding: 0 14px; }
  .page-wrap { padding: 0 14px 80px; }
  .brand span { display: none; }
  .metric-grid { grid-template-columns: 1fr; }
  .interlock-row { grid-template-columns: 38px 22px 1fr; }
  .btn { font-size: 0.8rem; padding: 8px 14px; }
  .event-row { grid-template-columns: 60px 1fr; }
  .ev-sev, .ev-cat { display: none; }
}