/* INDUTEC Industrial Platform — Design System */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg:     #0A0A0F;
  --bg2:    #111118;
  --bg3:    #16161F;
  --bg4:    #1C1C27;
  --border: rgba(255,255,255,.07);
  --border2:rgba(255,255,255,.12);
  --txt:    #E8E8F0;
  --txt2:   rgba(232,232,240,.5);
  --txt3:   rgba(232,232,240,.3);
  --accent: #00C2FF;
  --accent2:#6C3AE8;
  --success:#22C55E;
  --warn:   #F59E0B;
  --danger: #EF4444;
  --info:   #3B82F6;
  --ff:     'Inter', system-ui, sans-serif;
  --mono:   'JetBrains Mono', monospace;
  --r:      10px;
  --r2:     14px;
  --trans:  .18s ease;
  --shadow: 0 4px 24px rgba(0,0,0,.4);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 14px; }
body { font-family: var(--ff); background: var(--bg); color: var(--txt); line-height: 1.5; min-height: 100vh; }

a { color: inherit; text-decoration: none; }
button { font-family: var(--ff); cursor: pointer; border: none; }

/* ── Layout ── */
.platform-shell {
  display: grid;
  grid-template-columns: 220px 1fr;
  grid-template-rows: 52px 1fr;
  min-height: 100vh;
}
.platform-topbar {
  grid-column: 1/-1;
  display: flex; align-items: center; gap: 12px;
  padding: 0 20px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 100;
}
.platform-sidebar {
  background: var(--bg2);
  border-right: 1px solid var(--border);
  padding: 16px 0;
  overflow-y: auto;
  position: sticky; top: 52px;
  height: calc(100vh - 52px);
}
.platform-main {
  padding: 24px;
  overflow-y: auto;
}

/* ── Topbar ── */
.topbar-logo { display: flex; align-items: center; gap: 8px; }
.topbar-logo-mark { width: 28px; height: 28px; background: var(--accent); border-radius: 6px; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 13px; color: #000; }
.topbar-brand { font-weight: 700; font-size: 14px; letter-spacing: .02em; }
.topbar-sep { width: 1px; height: 20px; background: var(--border2); margin: 0 4px; }
.topbar-plant { font-size: 12px; color: var(--txt2); }
.topbar-spacer { flex: 1; }
.live-badge { display: flex; align-items: center; gap: 6px; font-size: 11px; font-weight: 600; color: var(--success); letter-spacing: .06em; }
.live-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--success); animation: pulse 2s ease infinite; }
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.5;transform:scale(.85)} }
.offline-badge { color: var(--txt2); }
.offline-badge .live-dot { background: var(--txt2); animation: none; }

/* ── Language switcher ── */
.lang-switcher { display: flex; align-items: center; gap: 2px; margin-right: 6px; }
.lang-opt { background: none; border: 1px solid transparent; border-radius: 6px; padding: 2px 5px; font-size: 15px; cursor: pointer; opacity: .5; transition: all var(--trans); line-height: 1; }
.lang-opt:hover { opacity: .85; border-color: var(--border2); background: var(--bg3); }
.lang-opt.active { opacity: 1; border-color: rgba(0,194,255,.4); background: rgba(0,194,255,.08); }

/* Hub page lang switcher */
.hub-lang { display: flex; justify-content: center; gap: 4px; margin-top: 14px; }

/* ── Sidebar nav ── */
.sidebar-section { padding: 0 12px 4px; font-size: 10px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--txt3); margin-top: 16px; margin-bottom: 4px; }
.sidebar-link {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: var(--r); margin: 1px 8px;
  font-size: 13px; font-weight: 500; color: var(--txt2);
  transition: all var(--trans); cursor: pointer;
}
.sidebar-link:hover { background: var(--bg3); color: var(--txt); }
.sidebar-link.active { background: rgba(0,194,255,.1); color: var(--accent); }
.sidebar-link.active .sidebar-ico { color: var(--accent); }
.sidebar-ico { font-size: 15px; width: 20px; text-align: center; }
.sidebar-alarm { margin-left: auto; background: var(--danger); color: #fff; font-size: 10px; font-weight: 700; padding: 1px 6px; border-radius: 20px; min-width: 18px; text-align: center; }

/* ── Page header ── */
.page-header { margin-bottom: 24px; }
.page-eyebrow { font-size: 11px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--accent); margin-bottom: 4px; }
.page-title { font-size: 22px; font-weight: 700; }
.page-sub { font-size: 13px; color: var(--txt2); margin-top: 4px; }

/* ── KPI Grid ── */
.kpi-row { display: grid; gap: 14px; margin-bottom: 20px; }
.kpi-row.cols-4 { grid-template-columns: repeat(4, 1fr); }
.kpi-row.cols-3 { grid-template-columns: repeat(3, 1fr); }
.kpi-row.cols-2 { grid-template-columns: repeat(2, 1fr); }
.kpi-card {
  background: var(--bg2); border: 1px solid var(--border); border-radius: var(--r2);
  padding: 16px 18px; position: relative; overflow: hidden;
}
.kpi-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: var(--accent); border-radius: var(--r2) var(--r2) 0 0; opacity: 0; transition: opacity var(--trans); }
.kpi-card.ok::before  { background: var(--success); opacity: 1; }
.kpi-card.warn::before{ background: var(--warn);    opacity: 1; }
.kpi-card.alert::before{ background: var(--danger); opacity: 1; }
.kpi-card.accent::before{ background: var(--accent); opacity: 1; }
.kpi-label { font-size: 10px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--txt2); margin-bottom: 8px; }
.kpi-value { font-size: 26px; font-weight: 700; font-family: var(--mono); line-height: 1; }
.kpi-value.ok    { color: var(--success); }
.kpi-value.warn  { color: var(--warn); }
.kpi-value.alert { color: var(--danger); }
.kpi-sub { font-size: 11px; color: var(--txt2); margin-top: 6px; }

/* ── Cards ── */
.card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--r2); overflow: hidden;
}
.card-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px; border-bottom: 1px solid var(--border);
}
.card-title { font-size: 13px; font-weight: 600; }
.card-badge { font-size: 11px; font-weight: 600; padding: 2px 8px; border-radius: 20px; }
.card-badge.live { background: rgba(34,197,94,.12); color: var(--success); }
.card-badge.warn { background: rgba(245,158,11,.12); color: var(--warn); }
.card-body { padding: 16px 18px; }

/* ── Charts ── */
.chart-wrap { position: relative; }
.chart-lbl { font-size: 11px; font-weight: 600; color: var(--txt2); margin-bottom: 10px; letter-spacing: .04em; }

/* ── Machine list ── */
.machine-list { display: flex; flex-direction: column; gap: 6px; }
.machine-row {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; background: var(--bg3); border-radius: var(--r);
  font-size: 12px;
}
.machine-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.machine-dot.running { background: var(--success); box-shadow: 0 0 6px var(--success); }
.machine-dot.warn    { background: var(--warn); }
.machine-dot.alert   { background: var(--danger); box-shadow: 0 0 6px var(--danger); }
.machine-dot.ok      { background: var(--success); }
.machine-name  { font-weight: 500; flex: 1; }
.machine-value { font-family: var(--mono); font-size: 11px; color: var(--txt2); }

/* ── Alarm list ── */
.alarm-item {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 10px 14px; border-radius: var(--r);
  margin-bottom: 6px; font-size: 12px;
}
.alarm-item.warn  { background: rgba(245,158,11,.08); border-left: 2px solid var(--warn); }
.alarm-item.alert { background: rgba(239,68,68,.08);  border-left: 2px solid var(--danger); }
.alarm-ico { font-size: 14px; margin-top: 1px; }
.alarm-msg { flex: 1; font-weight: 500; }
.alarm-ts  { font-size: 10px; color: var(--txt2); white-space: nowrap; }
.no-alarms { color: var(--txt2); font-size: 12px; text-align: center; padding: 20px 0; }

/* ── Status indicators ── */
.status-pill { display: inline-flex; align-items: center; gap: 5px; font-size: 11px; font-weight: 600; padding: 3px 10px; border-radius: 20px; }
.status-pill.running { background: rgba(34,197,94,.1); color: var(--success); }
.status-pill.alert   { background: rgba(239,68,68,.1); color: var(--danger); }
.status-pill.warn    { background: rgba(245,158,11,.1); color: var(--warn); }
.status-pill.ok      { background: rgba(34,197,94,.1); color: var(--success); }

/* ── Two-col layout ── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; }
.col-span-2 { grid-column: span 2; }
.col-span-3 { grid-column: span 3; }

/* ── Chat ── */
.chat-wrap  { display: flex; flex-direction: column; height: 460px; }
.chat-msgs  { flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 12px; scrollbar-width: thin; scrollbar-color: var(--border2) transparent; }
.chat-msg   { max-width: 82%; padding: 10px 14px; border-radius: 12px; font-size: 13px; line-height: 1.55; }
.chat-msg.u { background: rgba(0,194,255,.1); border: 1px solid rgba(0,194,255,.2); align-self: flex-end; }
.chat-msg.b { background: var(--bg3); border: 1px solid var(--border); align-self: flex-start; }
.chat-msg.b strong { color: var(--accent); }
.chat-src   { display: block; font-size: 9px; color: var(--txt3); font-family: var(--mono); margin-top: 6px; }
.chat-footer{ display: flex; gap: 8px; padding: 12px 16px; border-top: 1px solid var(--border); background: var(--bg2); }
.chat-input { flex: 1; background: var(--bg3); border: 1px solid var(--border); border-radius: 8px; padding: 9px 12px; color: var(--txt); font-family: var(--ff); font-size: 13px; outline: none; transition: border-color var(--trans); }
.chat-input:focus { border-color: rgba(0,194,255,.3); }
.chat-send  { background: var(--accent); color: #000; font-weight: 700; border-radius: 8px; padding: 9px 16px; font-size: 13px; transition: opacity var(--trans); }
.chat-send:hover { opacity: .85; }
.typing-indicator { display: flex; gap: 4px; align-items: center; padding: 10px 14px; background: var(--bg3); border: 1px solid var(--border); border-radius: 12px; width: fit-content; }
.typing-indicator span { width: 6px; height: 6px; border-radius: 50%; background: var(--txt2); animation: bounce .9s ease infinite; }
.typing-indicator span:nth-child(2) { animation-delay: .15s; }
.typing-indicator span:nth-child(3) { animation-delay: .3s; }
@keyframes bounce { 0%,60%,100%{transform:translateY(0)} 30%{transform:translateY(-5px)} }

/* ── SCADA specific ── */
.scada-wrap { background: var(--bg3); border-radius: var(--r2); padding: 24px; min-height: 380px; display: flex; align-items: center; justify-content: center; }
.gauge-wrap { text-align: center; }
.gauge-val  { font-family: var(--mono); font-size: 28px; font-weight: 700; }
.gauge-unit { font-size: 13px; color: var(--txt2); }
.gauge-lbl  { font-size: 11px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--txt2); margin-top: 4px; }

/* ── Twin SVG ── */
.twin-machine { cursor: pointer; transition: opacity .2s; }
.twin-machine:hover { opacity: .85; }
.twin-label { font-family: var(--ff); font-size: 10px; fill: rgba(232,232,240,.6); }
.twin-status { font-family: var(--mono); font-size: 9px; }

/* ── Responsive ── */
@media (max-width: 900px) {
  .platform-shell { grid-template-columns: 1fr; grid-template-rows: 52px auto 1fr; }
  .platform-sidebar { height: auto; position: static; display: flex; overflow-x: auto; padding: 8px; border-right: none; border-bottom: 1px solid var(--border); }
  .kpi-row.cols-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-2 { grid-template-columns: 1fr; }
}