/* ═══════════════════════════════════════════════════════════════
   PHM TRANSMISSION LENS · Component CSS
   Paired with phm-transmission-lens.js
   Mount: <div class="tl-mount" data-case="01"></div>
   ═══════════════════════════════════════════════════════════════ */

.tl-root {
  --d-bg:         #16181A;
  --d-bg-deep:    #0E1012;
  --d-bg-card:    #1D2024;
  --d-bg-card-hi: #252A2F;
  --d-rule:       rgba(255,255,255,0.06);
  --d-rule-hi:    rgba(255,255,255,0.14);
  --d-ink:        rgba(255,255,255,0.95);
  --d-ink-soft:   rgba(255,255,255,0.72);
  --d-ink-muted:  rgba(255,255,255,0.50);
  --d-ink-faint:  rgba(255,255,255,0.32);
  --tl-green:     #3FA867;
  --tl-green-mid: #2A7A4A;
  --tl-green-deep:#0D5C2E;
  --tl-green-glow:rgba(63,168,103,0.30);
  --tl-green-bg:  rgba(63,168,103,0.10);
  --tl-red:       #E07060;
  --tl-red-bg:    rgba(224,112,96,0.10);
  --tl-amber:     #E8A040;
  --tl-amber-bg:  rgba(232,160,64,0.10);
  --tl-display:   'Montserrat', system-ui, sans-serif;
  --tl-body:      'Figtree', system-ui, sans-serif;
  max-width: 1280px;
  margin: 40px auto;
  background: var(--d-bg);
  border: 1px solid var(--d-rule);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 12px 48px rgba(0,0,0,0.15);
  color: var(--d-ink);
  -webkit-font-smoothing: antialiased;
}
.tl-root *, .tl-root *::before, .tl-root *::after { box-sizing: border-box; }

.tl-header {
  padding: 24px 40px;
  background: var(--d-bg-deep);
  border-bottom: 1px solid var(--d-rule);
  display: flex; justify-content: space-between; align-items: baseline;
  gap: 32px; flex-wrap: wrap;
}
.tl-title { font-family: var(--tl-display); font-weight: 500; font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--tl-green); margin: 0; }
.tl-meta { font-family: var(--tl-display); font-weight: 500; font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--d-ink-muted); }
.tl-meta .tl-pulse { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--tl-green); margin-right: 8px; vertical-align: middle; animation: tl-pulse 2s ease-in-out infinite; }
@keyframes tl-pulse { 0%,100% { box-shadow: 0 0 0 0 rgba(63,168,103,0.5); } 50% { box-shadow: 0 0 0 6px rgba(63,168,103,0); } }

.tl-callout {
  padding: 18px 40px;
  background: linear-gradient(90deg, var(--tl-green-bg) 0%, rgba(63,168,103,0.03) 100%);
  border-bottom: 1px solid var(--d-rule);
  display: flex; align-items: center; gap: 20px; flex-wrap: wrap;
}
.tl-callout-badge {
  font-family: var(--tl-display); font-weight: 500; font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--tl-green);
  padding: 6px 12px; border: 1px solid var(--tl-green); border-radius: 3px;
  display: inline-flex; align-items: center; gap: 8px; flex-shrink: 0;
  background: rgba(63,168,103,0.05);
}
.tl-callout-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--tl-green); animation: tl-callout-pulse 2s ease-in-out infinite; }
@keyframes tl-callout-pulse { 0%,100% { box-shadow: 0 0 0 0 rgba(63,168,103,0.5); } 50% { box-shadow: 0 0 0 5px rgba(63,168,103,0); } }
.tl-callout-text { font-family: var(--tl-body); font-weight: 300; font-size: 13.5px; color: var(--d-ink-soft); line-height: 1.55; flex: 1; min-width: 300px; margin: 0; }
.tl-callout-text strong { color: var(--d-ink); font-weight: 500; }

.tl-grid { display: grid; grid-template-columns: 260px 1fr 320px; gap: 0; background: var(--d-rule); }
.tl-col { background: var(--d-bg); padding: 32px 28px; min-height: 420px; }
.tl-col-head {
  font-family: var(--tl-display); font-weight: 500; font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--d-ink-muted);
  margin: 0 0 20px 0; padding-bottom: 12px; border-bottom: 1px solid var(--d-rule);
}

.tl-source {
  background: var(--d-bg-card); border: 1px solid var(--d-rule-hi); border-left: 3px solid var(--tl-red);
  border-radius: 6px; padding: 24px 22px; position: relative;
}
.tl-source[data-kind="inherited"], .tl-source[data-kind="positive"] { border-left-color: var(--tl-green); }
.tl-source-badge {
  font-family: var(--tl-display); font-weight: 500; font-size: 9px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--tl-red);
  margin-bottom: 14px; display: inline-flex; align-items: center; gap: 6px;
}
.tl-source-badge::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: currentColor; }
.tl-source[data-kind="inherited"] .tl-source-badge, .tl-source[data-kind="positive"] .tl-source-badge { color: var(--tl-green); }
.tl-source-name { font-family: var(--tl-display); font-weight: 900; font-size: 22px; line-height: 1.1; color: var(--d-ink); letter-spacing: -0.02em; margin: 0 0 6px 0; }
.tl-source-detail { font-family: var(--tl-display); font-weight: 500; font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--tl-green); margin-bottom: 18px; }
.tl-source-body { font-family: var(--tl-body); font-weight: 300; font-size: 13px; line-height: 1.6; color: var(--d-ink-soft); padding-top: 16px; border-top: 1px solid var(--d-rule); margin: 0; }

.tl-paths { display: flex; flex-direction: column; gap: 10px; }
.tl-path {
  background: var(--d-bg-card); border: 1px solid var(--d-rule); border-radius: 6px;
  padding: 16px 48px 16px 20px;
  display: grid; grid-template-columns: 20px 1fr auto; gap: 16px; align-items: center;
  cursor: pointer; transition: border-color 0.18s, background 0.18s, transform 0.18s; position: relative;
}
.tl-path.entering { opacity: 0; transform: translateX(-8px); animation: tl-path-enter 0.4s ease-out forwards; }
.tl-path.entering:nth-child(1) { animation-delay: 0.05s; }
.tl-path.entering:nth-child(2) { animation-delay: 0.15s; }
.tl-path.entering:nth-child(3) { animation-delay: 0.25s; }
.tl-path.entering:nth-child(4) { animation-delay: 0.35s; }
.tl-path.entering:nth-child(5) { animation-delay: 0.45s; }
@keyframes tl-path-enter { to { opacity: 1; transform: translateX(0); } }
.tl-path::before {
  content: '→'; position: absolute; right: 18px; top: 50%; transform: translateY(-50%);
  font-family: var(--tl-display); font-weight: 500; font-size: 14px; color: var(--d-ink-faint);
  opacity: 0; transition: opacity 0.18s, right 0.18s, color 0.18s; pointer-events: none;
}
.tl-path:hover { background: var(--d-bg-card-hi); border-color: var(--d-rule-hi); transform: translateX(4px); }
.tl-path:hover::before { opacity: 1; color: var(--tl-green); right: 14px; }
.tl-path.focus { border-color: var(--tl-green); background: var(--tl-green-bg); animation: tl-focus-pulse 3s ease-in-out infinite; }
@keyframes tl-focus-pulse { 0%,100% { box-shadow: 0 0 0 0 rgba(63,168,103,0); } 50% { box-shadow: 0 0 0 3px rgba(63,168,103,0.15); } }
.tl-path-dot { width: 12px; height: 12px; border-radius: 50%; background: var(--tl-green); box-shadow: 0 0 0 3px var(--tl-green-bg); transition: all 0.2s; }
.tl-path.inactive .tl-path-dot { background: transparent; border: 1.5px solid var(--d-ink-faint); box-shadow: none; }
.tl-path-body { min-width: 0; }
.tl-path-param { font-family: var(--tl-display); font-weight: 500; font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--d-ink-muted); margin-bottom: 3px; }
.tl-path-name { font-family: var(--tl-display); font-weight: 900; font-size: 14px; color: var(--d-ink); letter-spacing: -0.01em; line-height: 1.3; }
.tl-path.inactive .tl-path-name { color: var(--d-ink-muted); text-decoration: line-through; text-decoration-color: var(--d-ink-faint); }
.tl-path-delta {
  font-family: var(--tl-display); font-weight: 900; font-size: 15px; color: var(--tl-red);
  letter-spacing: -0.01em; text-align: right; white-space: nowrap;
  min-width: 100px; font-variant-numeric: tabular-nums;
}
.tl-path.inactive .tl-path-delta { color: var(--d-ink-faint); text-decoration: line-through; }
.tl-path[data-sign="positive"] .tl-path-delta { color: var(--tl-green); }
.tl-path[data-sign="neutral"] .tl-path-delta { color: var(--tl-amber); }

.tl-outcome {
  background: var(--d-bg-card); border: 1px solid var(--d-rule-hi); border-radius: 6px;
  padding: 26px 26px; display: flex; flex-direction: column; gap: 20px;
}
.tl-outcome-row { display: flex; flex-direction: column; gap: 4px; }
.tl-outcome-label { font-family: var(--tl-display); font-weight: 500; font-size: 10px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--d-ink-muted); }
/* Fixed-width values prevent reflow when digits change (e.g. +9.7% → +2.5%) */
.tl-outcome-val {
  font-family: var(--tl-display); font-weight: 900; font-size: 38px; line-height: 1;
  letter-spacing: -0.03em; color: var(--d-ink); transition: color 0.25s;
  font-variant-numeric: tabular-nums;
  min-height: 38px;
}
.tl-outcome-val.standard { color: var(--d-ink-soft); }
.tl-outcome-val.compound { color: var(--tl-red); font-size: 46px; min-height: 46px; }
.tl-root[data-mode="positive"] .tl-outcome-val.compound { color: var(--tl-green); }
/* Reserve 2 lines minimum on subtitles to keep layout steady */
.tl-outcome-sub {
  font-family: var(--tl-body); font-weight: 300; font-size: 12px; color: var(--d-ink-muted);
  margin-top: 2px; min-height: 2.8em; line-height: 1.4;
}
.tl-outcome-divider { height: 1px; background: var(--d-rule); margin: 4px 0; }
.tl-factor { padding: 16px 18px; background: var(--tl-red-bg); border-left: 2px solid var(--tl-red); border-radius: 0 4px 4px 0; }
.tl-root[data-mode="positive"] .tl-factor { background: var(--tl-green-bg); border-left-color: var(--tl-green); }
.tl-factor-label { font-family: var(--tl-display); font-weight: 500; font-size: 9px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--tl-red); margin-bottom: 4px; }
.tl-root[data-mode="positive"] .tl-factor-label { color: var(--tl-green); }
.tl-factor-val { font-family: var(--tl-display); font-weight: 900; font-size: 28px; color: var(--tl-red); line-height: 1; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.tl-root[data-mode="positive"] .tl-factor-val { color: var(--tl-green); }
/* Reserve 3 lines minimum on factor subtext — text varies between active and inert states */
.tl-factor-sub {
  font-family: var(--tl-body); font-weight: 300; font-size: 11px; color: var(--d-ink-soft);
  margin-top: 6px; line-height: 1.5; min-height: 4.5em;
}
.tl-factor.inert { background: transparent; border-left-color: var(--d-rule-hi); }
.tl-factor.inert .tl-factor-label, .tl-factor.inert .tl-factor-val { color: var(--d-ink-faint) !important; }

.tl-instruction {
  padding: 14px 40px; background: var(--d-bg-deep);
  border-top: 1px solid var(--d-rule); border-bottom: 1px solid var(--d-rule);
  display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap;
}
.tl-instruction-text { font-family: var(--tl-body); font-weight: 300; font-size: 13px; color: var(--d-ink-soft); font-style: italic; margin: 0; }
.tl-instruction-text strong { color: var(--d-ink); font-weight: 500; font-style: normal; }
.tl-reset {
  font-family: var(--tl-display); font-weight: 500; font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--d-ink-muted);
  background: transparent; border: 1px solid var(--d-rule-hi); padding: 7px 14px; border-radius: 3px; cursor: pointer;
  transition: all 0.2s; opacity: 0; visibility: hidden;
}
.tl-reset.visible { opacity: 1; visibility: visible; color: var(--tl-green); border-color: var(--tl-green); }
.tl-reset.visible:hover { background: var(--tl-green-bg); }

.tl-detail { padding: 28px 40px 32px; background: var(--d-bg); position: relative; min-height: 280px; }
.tl-detail::before { content: ''; position: absolute; top: 0; left: 40px; width: 2px; height: 14px; background: var(--tl-green); }
.tl-detail-head { display: flex; align-items: baseline; gap: 16px; margin-bottom: 20px; padding-bottom: 16px; border-bottom: 1px solid var(--d-rule); flex-wrap: wrap; min-height: 54px; }
.tl-detail-eye { font-family: var(--tl-display); font-weight: 500; font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--tl-green); }
.tl-detail-title { font-family: var(--tl-display); font-weight: 900; font-size: 20px; color: var(--d-ink); letter-spacing: -0.015em; line-height: 1.2; margin: 0; }
.tl-detail-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 24px; }
.tl-detail-item-label { font-family: var(--tl-display); font-weight: 500; font-size: 9px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--d-ink-muted); margin-bottom: 8px; }
/* Reserve 4 lines minimum per item so switching between short and long mechanism descriptions doesn't jolt the layout */
.tl-detail-item-body { font-family: var(--tl-body); font-weight: 300; font-size: 14px; line-height: 1.6; color: var(--d-ink); margin: 0; min-height: 6.4em; }
.tl-detail-item-body strong { color: var(--d-ink); font-weight: 500; }
.tl-detail-item-body em { color: var(--tl-green); font-style: normal; font-weight: 500; }

/* ── METHODOLOGY FOOTNOTE ──────────────────────────────────────── */
/* Quiet, muted, clearly a footnote. Inside the dark frame as the
   final row so the methodology stays attached to the artifact it
   explains. Lead word "Methodology." is picked up from the prose
   via the content itself — we style the first word via JS-wrapped
   <span class="tl-method-lead">. Width capped for readability. */
.tl-methodology {
  padding: 18px 40px 22px;
  background: var(--d-bg-deep);
  border-top: 1px solid var(--d-rule);
  font-family: var(--tl-body);
  font-weight: 300;
  font-size: 12px;
  line-height: 1.65;
  color: var(--d-ink-muted);
  max-width: 960px;
}
.tl-methodology .tl-method-lead {
  font-family: var(--tl-display);
  font-weight: 500;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--d-ink-soft);
  margin-right: 6px;
}

@media (max-width: 1080px) {
  .tl-root { margin: 32px 16px; }
  .tl-grid { grid-template-columns: 1fr; }
  .tl-col { min-height: unset; }
  .tl-outcome-val { font-size: 32px; }
  .tl-outcome-val.compound { font-size: 40px; }
}
@media (max-width: 640px) {
  .tl-header { padding: 18px 24px; }
  .tl-col { padding: 24px 20px; }
  .tl-callout { padding: 16px 24px; }
  .tl-instruction { padding: 14px 24px; }
  .tl-detail { padding: 24px; }
  .tl-detail::before { left: 24px; }
}