:root {
  color-scheme: light;
  /* Unified green palette */
  --bg: #f0f8f5;
  --bg-alt: #e8f5f0;
  --bg-mid: #dcebd8;
  --bg-soft: #eef6f3;
  --header-accent: #547261;
  --card-bg: rgba(255,255,255,0.82);
  --card-bg-alt: rgba(252,252,250,0.85);
  --text-primary: #2f2a24;
  --text-secondary: #5e564e;
  --accent: #6b8e72;
  --accent-muted: rgba(107,142,114,0.18);
  --accent-green: #6b8e72;
  --accent-green-light: #8ba895;
  --accent-green-muted: rgba(107,142,114,0.2);
  --border: rgba(84,114,97,0.22);
  --shadow: 0 18px 32px -24px rgba(70,82,75,0.35);
  font-family: "Source Sans 3", system-ui, sans-serif;
}

*,
*::before,
*::after { box-sizing: border-box; }

body { margin:0; min-height:100vh; display:flex; flex-direction:column; color:var(--text-primary);
  background-color: var(--bg);
  background-image:
    linear-gradient(rgba(84,114,97,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(84,114,97,0.035) 1px, transparent 1px),
    radial-gradient(circle at 50% 50%, rgba(255,255,255,0.55) 0%, rgba(240,248,245,0.4) 60%, rgba(240,248,245,0.25) 100%);
  background-size: 42px 42px, 42px 42px, 100% 100%;
  background-attachment: fixed;
  animation: unitGridDrift 140s linear infinite;
}
@keyframes unitGridDrift { 0%{background-position:0 0,0 0,0 0;} 50%{background-position:12px 10px,-10px 7px,0 0;} 100%{background-position:0 0,0 0,0 0;} }
@media (prefers-reduced-motion:reduce){ body { animation:none; } }
header { padding: 3.2rem 4vw 1.2rem; text-align: center; }
h1 { margin: 0; font-family: "Cormorant Garamond", "Times New Roman", serif; font-size: clamp(2.8rem, 4vw, 3.6rem); letter-spacing: 0.01em; color: #3d5a4a; text-shadow:0 1px 2px rgba(61,90,74,0.2); }
p.lead { color:#3d5a4a; font-weight:500; }
.panel-intro { color:#3d5a4a; }
p.lead { margin: 0.75rem auto 0; max-width: 720px; font-size: 1.05rem; color: var(--text-secondary); line-height: 1.7; }

.timeline-wrapper { position: relative; padding: 2rem 0 3rem; }
.timeline-scroll { margin: 0 auto; width: min(1320px, 96vw); overflow-x: auto; overflow-y: hidden; scroll-behavior: smooth; padding-bottom: 0.5rem; }
.timeline-scroll::-webkit-scrollbar { height: 0.65rem; }
.timeline-scroll::-webkit-scrollbar-track { background: rgba(15, 23, 42, 0.6); border-radius: 999px; }
.timeline-scroll::-webkit-scrollbar-thumb { background: var(--accent-muted); border-radius: 999px; }
.timeline-track { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(300px, 380px); gap: 2.2rem; padding: 1rem 1rem 2rem; position: relative; }
.timeline-track::before { content: ""; position: absolute; top: 58px; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, rgba(107, 142, 114, 0), rgba(107, 142, 114, 0.7), rgba(107, 142, 114, 0)); z-index: 0; }

.event-card { position: relative; min-height: 430px; border-radius: 18px; perspective: 1100px; outline: none; opacity: 0; animation: cardStaggerIn 620ms cubic-bezier(.25,.7,.3,1) forwards; animation-delay: calc(var(--stagger-index, 0) * 90ms); }
.event-index-chip { position: absolute; top: 10px; right: 12px; z-index: 4; min-width: 34px; text-align: center; border-radius: 999px; padding: 0.2rem 0.5rem 0.18rem; font-size: 0.68rem; letter-spacing: 0.12em; font-weight: 700; color: #3d5a4a; background: rgba(139,168,149,0.18); border: 1px solid rgba(107,142,114,0.28); }
.event-card:hover .event-card-face,
.event-card:focus-visible .event-card-face { border-color: var(--accent-green); box-shadow: 0 20px 42px -24px rgba(70,82,75,0.45); }
.timeline-track:hover .event-card:not(:hover):not(:focus-within) .event-card-face { opacity: 0.78; filter: saturate(0.88); }
.event-card::before { content: ""; position: absolute; top: 52px; left: -1.2rem; width: 16px; height: 16px; border-radius: 50%; border: 3px solid var(--bg); background: var(--accent-green); box-shadow: 0 0 0 5px var(--accent-green-muted); }
.event-card-inner { position: relative; min-height: 430px; transform-style: preserve-3d; transition: transform 520ms cubic-bezier(.25,.7,.3,1); }
.event-card.is-flipped .event-card-inner { transform: rotateY(180deg); }
.event-card-face { position: absolute; inset: 0; background: var(--card-bg); border: 1px solid var(--border); border-radius: 18px; padding: 1.6rem; backdrop-filter: blur(14px); box-shadow: var(--shadow); backface-visibility: hidden; transition: border-color 220ms ease, box-shadow 220ms ease, background-color 220ms ease; display: flex; flex-direction: column; overflow: hidden; }
.event-card-front { background: var(--card-bg); }
.event-card-back { transform: rotateY(180deg); background: var(--card-bg-alt); }
.event-era { display: inline-flex; align-items: center; gap: 0.35rem; font-size: 0.83rem; color: var(--accent-green); letter-spacing: 0.1em; text-transform: uppercase; font-weight: 700; }
.event-genre { margin: 0.55rem 0 0.5rem; font-family: "Cormorant Garamond", "Times New Roman", serif; font-size: 1.86rem; line-height: 1.1; font-weight: 600; letter-spacing: 0.03em; }
.event-description { margin: 0.45rem 0 0.78rem; color: var(--text-secondary); line-height: 1.68; font-size: 0.97rem; }
.event-contribution { margin: 0; padding: 0.75rem 1rem; border-radius: 14px; background: rgba(107, 142, 114, 0.08); border: 1px solid rgba(107, 142, 114, 0.18); color: var(--text-primary); font-size: 0.95rem; line-height: 1.5; }
.flip-trigger { margin-top: auto; align-self: flex-start; background: rgba(107,142,114,0.12); color: var(--text-primary); border: 1px solid rgba(107,142,114,0.28); border-radius: 999px; padding: 0.5rem 0.9rem 0.45rem; font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; font-weight: 600; cursor: pointer; transition: background-color 180ms ease, border-color 180ms ease; }
.flip-trigger:hover,
.flip-trigger:focus-visible { background: rgba(107,142,114,0.22); border-color: var(--accent-green); outline: none; }
.event-back-title { margin: 0 0 0.55rem; font-family: "Cormorant Garamond", "Times New Roman", serif; font-size: 1.45rem; color: var(--header-accent); }
.event-extended { margin: 0 0 1rem; color: var(--text-secondary); line-height: 1.8; font-size: 0.9rem; flex: 1; overflow-y: auto; padding-right: 0.35rem; scrollbar-width: thin; scrollbar-color: rgba(107,142,114,0.6) rgba(107,142,114,0.14); }
.event-extended::-webkit-scrollbar { width: 0.45rem; }
.event-extended::-webkit-scrollbar-track { background: rgba(107,142,114,0.14); border-radius: 999px; }
.event-extended::-webkit-scrollbar-thumb { background: linear-gradient(180deg, rgba(139,168,149,0.85), rgba(84,114,97,0.85)); border-radius: 999px; }
.event-extended::-webkit-scrollbar-thumb:hover { background: linear-gradient(180deg, rgba(107,142,114,0.95), rgba(84,114,97,0.95)); }

@keyframes cardStaggerIn {
  0% { opacity: 0; transform: translateY(14px) scale(0.985); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}

@media (prefers-reduced-motion: reduce) {
  .event-card { animation: none; opacity: 1; }
  .event-card-inner { transition: none; }
}

.footer-note { text-align: center; color: var(--text-secondary); font-size: 0.85rem; padding: 1.6rem 0 2.4rem; }
.breadcrumb { padding: 1.5rem 4vw 0; }
.breadcrumb a { display: inline-flex; align-items: center; gap: 0.4rem; color: var(--text-secondary); text-decoration: none; font-size: 0.95rem; transition: color 200ms ease; }
.breadcrumb a:hover { color: var(--accent-green); }
.unit-content { max-width: 1100px; margin: 0 auto; padding: 0 4vw 3rem; }
.panel { background: rgba(255,255,255,0.82); border: 1px solid var(--border); border-radius: 20px; padding: 2rem 2.2rem; box-shadow: var(--shadow); backdrop-filter:blur(8px); }
.panel + .panel { margin-top: 2.5rem; }
.panel h2 { margin: 0 0 1rem; font-family: "Cormorant Garamond", serif; font-size: 2rem; color: var(--header-accent); }
.panel-intro { margin: 0 0 1.4rem; color: var(--text-secondary); font-size: 0.95rem; line-height: 1.6; }
.table-wrapper { overflow-x: auto; }
.companion-table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
.companion-table thead th { text-align: left; font-weight: 600; padding: 0.6rem 0.75rem; font-family: "Source Sans 3", sans-serif; color: var(--text-primary); border-bottom: 2px solid rgba(95,84,70,0.3); background: linear-gradient(to bottom, rgba(107,142,114,0.08), transparent); }
.companion-table tbody td { padding: 0.65rem 0.75rem; vertical-align: middle; border-bottom: 1px solid rgba(95,84,70,0.18); }
.companion-row { cursor: pointer; transition: background-color 180ms ease; opacity: 0; animation: rowStaggerIn 580ms cubic-bezier(.25,.7,.3,1) forwards; animation-delay: calc(var(--row-stagger-index, 0) * 80ms); }
.companion-row:focus { outline: 2px solid var(--accent-green); outline-offset: 2px; }
.companion-row:hover { background-color: rgba(107,142,114,0.09); }
.rank-cell { width: 3rem; font-weight: 600; color: var(--accent-green); font-size: 0.85rem; letter-spacing: 0.05em; }
.name-cell { font-family: "Cormorant Garamond", serif; font-size: 1.06rem; font-weight: 500; letter-spacing: 0.01em; }
.count-cell { width: 40%; }
.bar-wrapper { position: relative; display: flex; align-items: center; gap: 0.6rem; }
.count-bar { --target-width: 0%; width: 0%; height: 10px; border-radius: 6px; background: linear-gradient(90deg, #8ba895, #6b8e72); box-shadow: inset 0 0 0 1px rgba(95,84,70,0.25); transition: width 720ms cubic-bezier(.34,.7,.32,.98); }
.count-bar.animate { width: var(--target-width); }

@keyframes rowStaggerIn {
  0% { opacity: 0; transform: translateY(8px); }
  100% { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  .companion-row { animation: none; opacity: 1; }
}
.count-number { font-size: 0.8rem; color: var(--text-secondary); min-width: 3.2rem; text-align: right; }
.notes-row td { padding: 0; border: none; }
.notes-content { margin: 0.3rem 0.75rem 0.9rem; padding: 0.85rem 1rem; background: rgba(107,142,114,0.08); border: 1px solid rgba(95,84,70,0.18); border-radius: 12px; font-size: 0.88rem; line-height: 1.5; color: var(--text-secondary); max-height: 0; overflow: hidden; opacity: 0; transform: translateY(-4px); transition: max-height 420ms ease, opacity 320ms ease, transform 320ms ease; }
.notes-row.open .notes-content { max-height: 160px; opacity: 1; transform: translateY(0); }
.error-cell { text-align: center; padding: 1.5rem; color: var(--text-secondary); }

/* ========== Unit 3 Reliability Timeline ========== */
.reliability-panel { overflow: visible; }
.reliability-timeline { position: relative; display: flex; gap: 3rem; justify-content: space-between; align-items: flex-start; max-width: 80%; margin: 2.2rem auto 0; padding: 2rem 1rem 2.5rem; background: linear-gradient(135deg, rgba(232,245,240,0.65), rgba(240,248,245,0.38)); border: 1px solid rgba(84,114,97,0.25); border-radius: 26px; backdrop-filter:blur(6px); }

/* --- Shared subtle reveal animation (mirrors landing page) --- */
.reveal-init { opacity:0; transform:translateY(18px) scale(.975); }
.reveal-in { opacity:1; transform:translateY(0) scale(1); transition:opacity 640ms cubic-bezier(.25,.7,.3,1), transform 640ms cubic-bezier(.25,.7,.3,1); }
@media (prefers-reduced-motion:reduce){ .reveal-init, .reveal-in { opacity:1 !important; transform:none !important; transition:none !important; } }

/* Mild parallax container opt-in */
header.parallax-header { position:relative; overflow:hidden; }
header.parallax-header::before { content:""; position:absolute; inset:0; background:linear-gradient(135deg,#e8f5f0,#f0f8f5); opacity:.55; transition:transform 60ms linear; will-change:transform; }

/* Professional neutral variants matching updated landing palette */
.panel.variant-soft { background:rgba(246,241,228,0.65); backdrop-filter:blur(6px); }
.panel.variant-green { background:rgba(232,245,240,0.75); backdrop-filter:blur(6px); }
.panel.variant-outline { background:rgba(255,255,255,0.78); backdrop-filter:blur(6px); border-color:rgba(95,84,70,0.28); }
/* Figure / image placeholder panel */
.figure-box { background:rgba(255,255,255,0.75); border:1px dashed var(--accent-green); border-radius:18px; padding:1.4rem 1.6rem; text-align:center; font-size:.85rem; color:var(--text-secondary); font-style:italic; box-shadow:0 6px 18px -12px rgba(70,82,75,.25); transition:background 240ms ease,border-color 240ms ease; }
.figure-box:hover { background:rgba(255,255,255,0.85); border-color:var(--accent-green-light); }

/* Reliability node reveal */
.rel-node { opacity:1; }
.rel-node.reveal-init { opacity:0; transform:translateY(10px) scale(.96); }
.rel-node.reveal-in { opacity:1; transform:translateY(0) scale(1); transition:opacity 520ms cubic-bezier(.25,.7,.3,1), transform 520ms cubic-bezier(.25,.7,.3,1); }
@media (prefers-reduced-motion:reduce){ .rel-node.reveal-init, .rel-node.reveal-in { opacity:1 !important; transform:none !important; transition:none !important; } }

/* Layout toggle button (Unit 3) */
.layout-toggle { display:inline-flex; align-items:center; gap:.45rem; font-size:.7rem; letter-spacing:.12em; text-transform:uppercase; font-weight:600; background:var(--accent-green); color:#fff; border:none; border-radius:999px; padding:.55rem .9rem .5rem; cursor:pointer; box-shadow:0 4px 14px -6px rgba(70,82,75,.4); transition:background 180ms ease, transform 180ms ease; }
.layout-toggle:hover { background:#547261; }
.layout-toggle:active { transform:translateY(2px); }
@media (prefers-reduced-motion:reduce){ .layout-toggle { transition:none; } }

/* Smooth transition when toggling reliability layout */
.reliability-timeline, .reliability-timeline.vertical-mode { transition:all 480ms cubic-bezier(.25,.7,.3,1); }

/* Professional gradient mesh background for Units 1 & 2 */
.bg-gradient-mesh { 
  position:fixed; 
  top:0; 
  left:0; 
  width:100%; 
  height:100%; 
  pointer-events:none; 
  z-index:0; 
  overflow:hidden;
  background:
    radial-gradient(ellipse at 20% 30%, rgba(107,142,114,0.04) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 70%, rgba(139,168,149,0.04) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(232,245,240,0.02) 0%, transparent 60%);
  background-size: 200% 200%;
  animation: meshShift 45s ease-in-out infinite;
}
.bg-gradient-mesh::before {
  content:'';
  position:absolute;
  inset:0;
  background:
    linear-gradient(135deg, transparent 0%, rgba(107,142,114,0.015) 50%, transparent 100%);
  animation: shimmer 35s linear infinite;
}
@keyframes meshShift { 0%,100%{background-position:0% 50%;} 50%{background-position:100% 50%;} }
@keyframes shimmer { 0%{transform:translateX(-100%) rotate(0deg);} 100%{transform:translateX(100%) rotate(5deg);} }
@media (prefers-reduced-motion:reduce){ .bg-gradient-mesh,.bg-gradient-mesh::before { animation:none; } }

.reliability-timeline .rail { content: ""; position: absolute; top: 50%; left: 3%; right: 3%; height: 2px; background: linear-gradient(90deg, rgba(170,140,95,0.1), rgba(170,140,95,0.55), rgba(170,140,95,0.1)); pointer-events: none; }
.reliability-timeline .column { flex: 1; position: relative; }
.column-title { margin: 0 0 1.2rem; font-family: "EB Garamond","Cormorant Garamond",serif; font-size: 1.4rem; letter-spacing: 0.02em; font-weight: 600; display: flex; align-items: center; gap: 0.5rem; }
.column.accreditation .column-title { color: #6d7333; }
.column.criticism .column-title { color: #7d3b30; }
.nodes { display: flex; flex-wrap: nowrap; gap: 1.1rem; position: relative; justify-content: flex-start; }
.rel-node { position: relative; border: none; background: rgba(255,255,255,0.85); font: 500 0.75rem "Open Sans", sans-serif; padding: 0.6rem 0.75rem 0.55rem 0.9rem; border-radius: 18px; cursor: pointer; display: flex; align-items: center; gap: 0.55rem; min-width: 150px; max-width: 190px; text-align: left; line-height: 1.25; color: var(--text-primary); box-shadow: 0 4px 10px -4px rgba(70,52,35,0.25); transition: background-color 200ms ease, transform 200ms ease, box-shadow 220ms ease; }
.rel-node .label { flex: 1; }
.rel-node .plus { font-size: 1rem; line-height: 1; opacity: 0.55; transition: opacity 150ms; }
.rel-node:hover .plus, .rel-node:focus .plus { opacity: 0.85; }
.rel-node:focus { outline: 2px solid var(--accent); outline-offset: 2px; }
.rel-node .dot { width: 14px; height: 14px; border-radius: 50%; box-shadow: 0 0 0 2px rgba(0,0,0,0.06); flex-shrink: 0; }
.rel-node.acc .dot { background: linear-gradient(135deg,#9aa541,#c9d072); border: 1px solid #6d7333; }
.rel-node.crit .dot { background: linear-gradient(135deg,#b75b49,#e49b7d); border: 1px solid #7d3b30; }
.rel-node.acc:hover, .rel-node.acc:focus { background: rgba(157,167,72,0.18); transform: translateY(-4px); }
.rel-node.crit:hover, .rel-node.crit:focus { background: rgba(183,91,73,0.16); transform: translateY(-4px); }
#popover-layer { position: fixed; top: 0; left: 0; width: 100%; height: 100%; pointer-events: none; z-index: 40; }
.rel-popover { position: absolute; width: min(380px, 92vw); background: #fffdf9; border: 1px solid rgba(95,84,70,0.25); box-shadow: 0 18px 42px -22px rgba(70,52,35,0.35), 0 4px 10px -4px rgba(70,52,35,0.25); padding: 1.15rem 1.15rem 1.05rem; border-radius: 18px; opacity: 0; transform: translateY(6px) scale(.96); transition: opacity 180ms ease, transform 220ms cubic-bezier(.25,.7,.3,1); pointer-events: auto; }
.rel-popover.below { transform: translateY(-6px) scale(.96); }
.rel-popover.open { opacity: 1; transform: translateY(0) scale(1); }
.rel-popover.acc { border-color: rgba(109,115,51,0.4); }
.rel-popover.crit { border-color: rgba(125,59,48,0.4); }
.rel-popover .close-btn { position: absolute; top: 6px; right: 8px; border: none; background: transparent; font-size: 1.2rem; line-height: 1; cursor: pointer; color: #7b6c5d; }
.rel-popover .close-btn:hover { color: #3d332b; }
.pop-term { margin: 0 0 .55rem; font-family: "EB Garamond","Cormorant Garamond",serif; font-size: 1.15rem; letter-spacing: .01em; }
.implication { margin: 0 0 .9rem; font-size: 0.82rem; line-height: 1.5; color: var(--text-secondary); }
.notes-label { display: block; font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.08em; font-weight: 600; color: #8a7a69; margin-bottom: 0.35rem; }
.notes-static { font: 400 0.78rem/1.45 "Open Sans", sans-serif; padding: 0.6rem 0.7rem; border: 1px solid rgba(120,105,90,0.35); background: #fdfaf4; border-radius: 8px; color: #2f2a24; min-height: 70px; white-space: pre-wrap; }
.notes-area { width: 100%; min-height: 90px; resize: vertical; font: 400 0.78rem/1.4 "Open Sans", sans-serif; padding: 0.55rem 0.6rem; border: 1px solid rgba(120,105,90,0.4); border-radius: 8px; background: #fdfaf4; color: #2f2a24; transition: border-color 160ms ease, box-shadow 160ms ease; }
.notes-area:focus { outline: none; border-color: var(--accent-green); box-shadow: 0 0 0 2px var(--accent-green-muted); }
.reliability-timeline.vertical-mode { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; max-width: 80%; margin: 2.2rem auto 0; padding: 2.2rem 2rem 2.6rem; background: linear-gradient(135deg, rgba(232,245,240,0.65), rgba(240,248,245,0.38)); border: 1px solid rgba(84,114,97,0.25); border-radius: 26px; backdrop-filter:blur(6px); }
.reliability-timeline.vertical-mode .column { position: relative; padding-left: 1.4rem; }
.reliability-timeline.vertical-mode .column::before { content: ""; position: absolute; top: 3.1rem; bottom: 0.4rem; left: 0.55rem; width: 2px; background: linear-gradient(to bottom, rgba(170,140,95,0.15), rgba(170,140,95,0.55), rgba(170,140,95,0.15)); }
.reliability-timeline.vertical-mode .nodes.vertical { display: flex; flex-direction: column; gap: 0.9rem; }
.reliability-timeline.vertical-mode .rel-node { max-width: 100%; min-width: 0; }
.reliability-timeline.vertical-mode .rel-node .dot { position: relative; }
.reliability-timeline.vertical-mode .rel-node::before { content: ""; position: absolute; left: -1.05rem; top: 50%; width: 12px; height: 2px; background: rgba(170,140,95,0.35); transform: translateY(-50%); }
@media (max-width: 700px) { header { padding: 2.5rem 6vw 1rem; } .timeline-track { grid-auto-columns: minmax(240px, 72vw); gap: 1.5rem; } .event-card::before { left: calc(8vw * -1); } .count-cell { width: 50%; } .name-cell { font-size: 1rem; } .panel { padding: 1.6rem 1.4rem; } }

body.ui-compact header { padding: 2.4rem 4vw 0.8rem; }
body.ui-compact .timeline-wrapper { padding: 1.2rem 0 2rem; }
body.ui-compact .timeline-track { gap: 1.5rem; grid-auto-columns: minmax(280px, 344px); }
body.ui-compact .unit-content { max-width: 980px; padding: 0 4vw 2.1rem; }
body.ui-compact .panel { padding: 1.45rem 1.6rem; }
body.ui-compact .panel + .panel { margin-top: 1.8rem; }
body.ui-compact .reliability-timeline.vertical-mode { max-width: 88%; padding: 1.6rem 1.4rem 1.9rem; }

body.ui-accent .breadcrumb a { color: #3d5a4a; }
body.ui-accent .panel,
body.ui-accent .event-card-face,
body.ui-accent .reliability-timeline,
body.ui-accent .reliability-timeline.vertical-mode { border-color: rgba(84,114,97,0.42); box-shadow: 0 22px 34px -26px rgba(70,82,75,.58); }
body.ui-accent .companion-row:hover { background-color: rgba(107,142,114,0.14); }
body.ui-accent .event-index-chip { background: rgba(139,168,149,0.28); border-color: rgba(84,114,97,0.48); }

@keyframes unitCardFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}
body.ui-motion .event-card:hover .event-card-inner { transform: translateY(-6px); }
body.ui-motion .panel.reveal-in { animation: unitCardFloat 12s ease-in-out infinite; }
body.ui-motion .companion-row { transition: background-color 180ms ease, transform 180ms ease; }
body.ui-motion .companion-row:hover { transform: translateX(3px); }
@media (max-width: 1000px) { .reliability-timeline { flex-direction: column; gap: 2.2rem; max-width: 100%; } .reliability-timeline .rail { display: none; } .nodes { flex-wrap: wrap; } .rel-node { max-width: 100%; } }
@media (max-width: 900px) { .reliability-timeline.vertical-mode { grid-template-columns: 1fr; gap: 2.4rem; max-width: 100%; } .reliability-timeline.vertical-mode .column { padding-left: 1.2rem; } .reliability-timeline.vertical-mode .column::before { left: 0.4rem; } .reliability-timeline.vertical-mode .rel-node::before { left: -0.9rem; width: 10px; } }