/* ── DeepManthan AI shared dark theme — matches HVAC ecosystem exactly ── */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: 'Space Grotesk', sans-serif;
  background: linear-gradient(135deg, #070B12 0%, #0A0F1A 100%);
  color: #DCE6F2;
  min-height: 100vh;
}

/* NAV */
.dm-nav {
  background: rgba(10, 15, 26, 0.95);
  border-bottom: 1px solid rgba(56,225,255,0.2);
  padding: 14px 40px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.dm-nav-brand {
  font-size: 1.1rem;
  font-weight: 700;
  background: linear-gradient(90deg,#38E1FF,#2DD4BF);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.dm-nav-sep { color: rgba(56,225,255,0.3); }
.dm-nav a { color: #A0D8FF; text-decoration: none; font-size: 0.9rem; transition: color 0.2s; }
.dm-nav a:hover { color: #38E1FF; }
.dm-nav-right { margin-left: auto; }

/* PAGE HEADER */
.dm-page-header {
  text-align: center;
  padding: 50px 40px 36px;
  border-bottom: 1px solid rgba(56,225,255,0.15);
  background: rgba(10,15,26,0.6);
}
.dm-eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #2DD4BF;
  margin-bottom: 12px;
}
.dm-page-header h1 {
  font-size: 2rem;
  font-weight: 700;
  color: #38E1FF;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.dm-page-header p {
  color: #A0D8FF;
  font-size: 1rem;
  line-height: 1.6;
  max-width: 620px;
  margin: 0 auto;
}

/* TOC links */
.dm-toc { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; margin-top: 20px; }
.dm-toc a {
  color: #38E1FF;
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 5px 14px;
  border: 1px solid rgba(56,225,255,0.35);
  border-radius: 20px;
  transition: all 0.2s;
}
.dm-toc a:hover { background: rgba(56,225,255,0.12); }

/* CONTAINER */
.dm-container { max-width: 900px; margin: 0 auto; padding: 36px 40px; width: 100%; }

/* SECTION HEADINGS */
h2.dm-h2 {
  font-size: 1.35rem;
  font-weight: 700;
  color: #38E1FF;
  margin: 44px 0 8px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(56,225,255,0.2);
}
h2.dm-h2:first-child { margin-top: 0; }
h3.dm-h3 { font-size: 1rem; font-weight: 600; color: #2DD4BF; margin: 20px 0 8px; }

/* KPI ROW */
.dm-kpi-row { display: grid; grid-template-columns: repeat(auto-fit,minmax(150px,1fr)); gap: 12px; margin: 16px 0; }
.dm-kpi {
  background: rgba(56,225,255,0.06);
  border: 1px solid rgba(56,225,255,0.2);
  border-radius: 8px;
  padding: 14px 16px;
}
.dm-kpi .kl { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.08em; color: #7DD3C0; margin-bottom: 6px; font-weight: 600; }
.dm-kpi .kv { font-size: 1.5rem; font-weight: 700; color: #38E1FF; line-height: 1.1; }
.dm-kpi .ks { font-size: 0.73rem; color: #A0D8FF; margin-top: 4px; }
.dm-kpi.cyan .kv  { color: #38E1FF; }
.dm-kpi.teal .kv  { color: #2DD4BF; }
.dm-kpi.green .kv { color: #4ade80; }
.dm-kpi.amber .kv { color: #fbbf24; }
.dm-kpi.red .kv   { color: #f87171; }

/* CONTROLS */
.dm-controls {
  background: rgba(56,225,255,0.05);
  border: 1px solid rgba(56,225,255,0.2);
  border-radius: 10px;
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.dm-controls label { font-size: 0.82rem; color: #A0D8FF; font-weight: 500; }
.dm-controls select {
  background: rgba(10,15,26,0.8);
  border: 1px solid rgba(56,225,255,0.35);
  border-radius: 6px;
  color: #DCE6F2;
  padding: 5px 10px;
  font-size: 0.82rem;
  font-family: 'Space Grotesk', sans-serif;
}

/* BUTTONS */
.dm-btn {
  background: transparent;
  color: #38E1FF;
  border: 1px solid #38E1FF;
  border-radius: 6px;
  padding: 8px 18px;
  font-size: 0.85rem;
  font-weight: 600;
  font-family: 'Space Grotesk', sans-serif;
  cursor: pointer;
  transition: all 0.2s;
}
.dm-btn:hover { background: #38E1FF; color: #070B12; }
.dm-btn.active { background: #38E1FF; color: #070B12; }

/* SLIDERS */
input[type=range] {
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  background: rgba(56,225,255,0.2);
  border-radius: 2px;
  outline: none;
}
input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: #38E1FF;
  cursor: pointer;
}

/* CARD — generic glass card */
.dm-card {
  background: linear-gradient(135deg, rgba(56,225,255,0.08), rgba(45,212,191,0.04));
  border: 1px solid rgba(56,225,255,0.25);
  border-radius: 10px;
  padding: 20px 24px;
  margin: 12px 0;
}

/* FORMULA */
.dm-formula {
  background: rgba(56,225,255,0.06);
  border: 1px solid rgba(56,225,255,0.25);
  border-left: 3px solid #38E1FF;
  border-radius: 0 8px 8px 0;
  padding: 12px 16px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.92rem;
  color: #38E1FF;
  margin: 12px 0;
}

/* TABLE */
table.dm-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; margin: 12px 0; }
table.dm-table th {
  background: rgba(56,225,255,0.12);
  color: #38E1FF;
  font-weight: 600;
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid rgba(56,225,255,0.3);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}
table.dm-table td { padding: 9px 12px; border-bottom: 1px solid rgba(56,225,255,0.1); color: #A0D8FF; }
table.dm-table tr:last-child td { border-bottom: none; }
table.dm-table tr:hover td { background: rgba(56,225,255,0.04); }

/* INSIGHT BOX */
.dm-insight {
  background: rgba(56,225,255,0.06);
  border-left: 3px solid #38E1FF;
  border-radius: 0 8px 8px 0;
  padding: 14px 18px;
  font-size: 0.88rem;
  color: #A0D8FF;
  line-height: 1.7;
  margin: 16px 0;
}
.dm-insight strong { color: #38E1FF; }

/* ALERT */
.dm-alert {
  background: rgba(248,113,113,0.1);
  border: 1px solid rgba(248,113,113,0.45);
  border-radius: 8px;
  padding: 12px 18px;
  font-size: 0.87rem;
  color: #fca5a5;
  margin: 12px 0;
  display: none;
}
.dm-alert strong { color: #f87171; font-weight: 700; }

/* TRIGGER GRID */
.dm-trigger-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(170px,1fr)); gap: 12px; margin: 12px 0 20px; }
.dm-trigger {
  background: rgba(56,225,255,0.05);
  border: 1px solid rgba(56,225,255,0.25);
  border-radius: 10px;
  padding: 16px;
  text-align: left;
  font-family: 'Space Grotesk', sans-serif;
  cursor: pointer;
  transition: all 0.25s;
}
.dm-trigger:hover { border-color: #38E1FF; box-shadow: 0 0 14px rgba(56,225,255,0.2); }
.dm-trigger.active { border-color: #38E1FF; background: rgba(56,225,255,0.12); }
.dm-trigger .t-icon { font-size: 1.5rem; margin-bottom: 8px; }
.dm-trigger .t-name { font-size: 0.87rem; font-weight: 700; color: #38E1FF; }
.dm-trigger .t-desc { font-size: 0.75rem; color: #A0D8FF; margin-top: 4px; }

/* ZONE CARDS */
.dm-zone-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(190px,1fr)); gap: 12px; margin: 12px 0; }
.dm-zone {
  background: rgba(56,225,255,0.05);
  border: 1.5px solid rgba(56,225,255,0.2);
  border-radius: 10px;
  padding: 14px 16px;
  transition: all 0.3s;
}
.dm-zone.ok    { border-color: rgba(74,222,128,0.5); }
.dm-zone.warn  { border-color: rgba(251,191,36,0.5); }
.dm-zone.danger{ border-color: rgba(248,113,113,0.6); background: rgba(248,113,113,0.06); }
.dm-zone .z-name { font-size: 0.85rem; font-weight: 700; color: #38E1FF; }
.dm-zone .z-type { font-size: 0.73rem; color: #7DD3C0; margin-bottom: 10px; }
.dm-bar-wrap { background: rgba(255,255,255,0.07); border-radius: 3px; height: 8px; margin-bottom: 8px; overflow: hidden; }
.dm-bar { height: 8px; border-radius: 3px; transition: width 0.5s, background 0.4s; }
.dm-zone .z-vals { font-size: 0.78rem; display: flex; justify-content: space-between; color: #A0D8FF; }
.dm-status { display: inline-block; font-size: 0.68rem; font-weight: 700; padding: 3px 8px; border-radius: 10px; margin-top: 6px; }
.dm-status.ok     { background: rgba(74,222,128,0.15); color: #4ade80; }
.dm-status.warn   { background: rgba(251,191,36,0.15); color: #fbbf24; }
.dm-status.danger { background: rgba(248,113,113,0.15); color: #f87171; }

/* ESCALATION LADDER */
.dm-ladder { margin: 12px 0; }
.dm-ladder-step {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 12px 16px; border-radius: 8px; margin-bottom: 6px;
  border: 1px solid rgba(56,225,255,0.15);
  background: rgba(56,225,255,0.03);
  transition: all 0.25s;
}
.dm-ladder-step.active { border-color: rgba(251,191,36,0.5); background: rgba(251,191,36,0.06); }
.dm-ladder-step.done   { border-color: rgba(74,222,128,0.4); background: rgba(74,222,128,0.04); opacity: 0.7; }
.dm-ls-num {
  width: 26px; height: 26px; border-radius: 50%;
  background: rgba(56,225,255,0.1); border: 1px solid rgba(56,225,255,0.3);
  color: #A0D8FF; font-weight: 700; font-size: 0.78rem;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.dm-ls-num.active { background: #fbbf24; border-color: #fbbf24; color: #070B12; }
.dm-ls-num.done   { background: #4ade80; border-color: #4ade80; color: #070B12; }
.dm-ls-title { font-size: 0.88rem; font-weight: 700; color: #38E1FF; }
.dm-ls-desc  { font-size: 0.78rem; color: #A0D8FF; margin-top: 3px; }

/* TREND / CHART BARS */
.dm-chart-wrap { background: rgba(56,225,255,0.04); border: 1px solid rgba(56,225,255,0.2); border-radius: 10px; padding: 16px 20px; margin: 12px 0; overflow-x: auto; }
.dm-chart-bars { display: flex; align-items: flex-end; gap: 2px; height: 110px; }
.dm-bar-chart { flex: 1; min-width: 10px; border-radius: 2px 2px 0 0; cursor: pointer; transition: opacity 0.15s; }
.dm-bar-chart:hover { opacity: 0.7; }
.dm-bar-chart.selected { outline: 2px solid #38E1FF; outline-offset: 1px; }
.dm-chart-labels { display: flex; gap: 2px; margin-top: 4px; }
.dm-chart-labels span { flex: 1; text-align: center; font-size: 7.5px; color: rgba(56,225,255,0.4); }
.dm-trend-wrap { background: rgba(56,225,255,0.04); border: 1px solid rgba(56,225,255,0.2); border-radius: 10px; padding: 16px 20px; margin: 12px 0; }
.dm-trend-bars { display: flex; align-items: flex-end; gap: 2px; height: 72px; }
.dm-tb { flex: 1; border-radius: 2px 2px 0 0; transition: height 0.5s, background 0.5s; }

/* SCENARIO BOX */
.dm-scenario {
  background: rgba(56,225,255,0.05);
  border: 1px solid rgba(56,225,255,0.2);
  border-radius: 10px;
  padding: 16px 20px;
  margin-bottom: 20px;
}
.dm-scenario .sc-label { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.1em; color: #7DD3C0; margin-bottom: 10px; font-weight: 600; }
.dm-scenario .sc-vals { display: flex; gap: 24px; flex-wrap: wrap; }
.dm-sv .sv { font-size: 0.95rem; font-weight: 700; color: #38E1FF; display: block; }
.dm-sv .sk { font-size: 0.72rem; color: #7DD3C0; }

/* Q&A ACCORDION */
.dm-qa { background: rgba(56,225,255,0.04); border: 1px solid rgba(56,225,255,0.2); border-radius: 8px; margin-bottom: 6px; overflow: hidden; transition: border-color 0.2s; }
.dm-qa:hover { border-color: rgba(56,225,255,0.4); }
.dm-qa-header { display: flex; align-items: center; gap: 10px; padding: 12px 16px; cursor: pointer; }
.dm-qa-tag {
  font-size: 0.64rem; font-weight: 700; padding: 3px 8px; border-radius: 3px;
  white-space: nowrap; flex-shrink: 0; text-transform: uppercase; letter-spacing: 0.05em;
  font-family: 'IBM Plex Mono', monospace;
}
.dm-qa-tag.pumps  { background: rgba(56,225,255,0.15); color: #38E1FF; }
.dm-qa-tag.pipes  { background: rgba(45,212,191,0.15); color: #2DD4BF; }
.dm-qa-tag.tanks  { background: rgba(251,191,36,0.15); color: #fbbf24; }
.dm-qa-tag.leaks  { background: rgba(248,113,113,0.15); color: #f87171; }
.dm-qa-tag.energy { background: rgba(167,139,250,0.15); color: #a78bfa; }
.dm-qa-tag.ai     { background: rgba(74,222,128,0.15); color: #4ade80; }
.dm-qa-q { font-size: 0.88rem; font-weight: 600; color: #DCE6F2; flex: 1; }
.dm-qa-chev { color: rgba(56,225,255,0.4); font-size: 0.75rem; transition: transform 0.2s; flex-shrink: 0; }
.dm-qa.open .dm-qa-chev { transform: rotate(180deg); }
.dm-qa.open { border-color: rgba(56,225,255,0.4); }
.dm-qa-answer { display: none; padding: 0 16px 14px; border-top: 1px solid rgba(56,225,255,0.1); }
.dm-qa.open .dm-qa-answer { display: block; }
.dm-qa-answer p { font-size: 0.85rem; color: #A0D8FF; margin-top: 10px; line-height: 1.7; }
.dm-qa-answer strong { color: #38E1FF; }

/* FILTER PILLS */
.dm-filter-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.dm-filter {
  padding: 5px 14px; border-radius: 20px; font-size: 0.78rem; font-weight: 600;
  cursor: pointer; border: 1px solid rgba(56,225,255,0.3);
  background: transparent; color: #A0D8FF; font-family: 'Space Grotesk', sans-serif;
  transition: all 0.2s;
}
.dm-filter:hover, .dm-filter.active { background: rgba(56,225,255,0.15); color: #38E1FF; border-color: #38E1FF; }

/* SEARCH */
.dm-search-wrap { position: relative; margin-bottom: 16px; }
.dm-search-wrap input {
  width: 100%; padding: 9px 14px 9px 34px;
  background: rgba(10,15,26,0.8); border: 1px solid rgba(56,225,255,0.3);
  border-radius: 8px; color: #DCE6F2; font-size: 0.85rem; font-family: 'Space Grotesk', sans-serif;
}
.dm-search-wrap input::placeholder { color: rgba(160,216,255,0.4); }
.dm-search-wrap input:focus { outline: none; border-color: #38E1FF; }
.dm-search-wrap::before { content: '🔍'; position: absolute; left: 10px; top: 50%; transform: translateY(-50%); font-size: 0.8rem; }

/* SVG CARD */
.dm-svg-card { background: rgba(10,15,26,0.6); border: 1px solid rgba(56,225,255,0.2); border-radius: 10px; overflow: hidden; }

/* BILLING CARD */
.dm-billing {
  background: linear-gradient(135deg,rgba(251,191,36,0.1),rgba(251,191,36,0.04));
  border: 1px solid rgba(251,191,36,0.35);
  border-radius: 12px;
  padding: 24px 28px;
  margin: 12px 0;
}
.dm-billing h3 { color: #fbbf24; font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.dm-billing p  { font-size: 0.85rem; color: #A0D8FF; margin-bottom: 12px; }

/* FOOTER */
.dm-footer {
  background: rgba(10,15,26,0.95);
  border-top: 1px solid rgba(56,225,255,0.2);
  padding: 36px 40px;
  text-align: center;
  color: #7DD3C0;
  font-size: 0.82rem;
  margin-top: 60px;
}

@media (max-width: 768px) {
  .dm-container { padding: 24px 20px; }
  .dm-page-header { padding: 36px 20px 28px; }
  .dm-footer { padding: 28px 20px; }
  .dm-nav { padding: 12px 20px; }
}