/* Operator training (en/training.html, fr/formation.html). Builds on style.css tokens. */

/* Hero */
.trn-hero { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
.trn-hero .render { filter: drop-shadow(0 30px 40px rgba(0, 0, 0, 0.6)); }
.trn-hero .render-wrap::before { content: ''; position: absolute; inset: 10% 5%; background: radial-gradient(ellipse at 50% 55%, rgba(42, 102, 214, 0.24), transparent 65%); }
.trn-hero .render-wrap img { position: relative; }
.trn-model { position: relative; background: radial-gradient(ellipse at 50% 60%, rgba(42, 102, 214, 0.2), transparent 65%), var(--bg-2); border: 1px solid var(--line); padding: 8px 0 10px; }
.trn-model img { background: transparent !important; border: 0 !important; margin: 0 auto; }
.trn-meta { display: flex; flex-wrap: wrap; gap: 8px; }
.trn-meta span { font-family: var(--mono); font-size: 12px; letter-spacing: 1px; color: var(--text-2); border: 1px solid var(--line-2); padding: 6px 10px; }
.trn-note { font-size: 14px; color: var(--faint); max-width: 40em; }
@media (max-width: 900px) { .trn-hero { grid-template-columns: minmax(0, 1fr); } }

/* App shell */
.trn { display: grid; grid-template-columns: 300px minmax(0, 1fr); gap: 28px; align-items: start; }
.trn-side { position: sticky; top: 96px; background: var(--panel); border: 1px solid var(--line); padding: 22px; display: flex; flex-direction: column; gap: 20px; max-height: calc(100vh - 116px); overflow: auto; }
.trn-meter { display: flex; align-items: center; gap: 18px; }
.trn-ring { --p: 0; flex: none; width: 104px; height: 104px; border-radius: 50%; background: conic-gradient(var(--accent) calc(var(--p) * 1%), var(--line) 0); display: grid; place-items: center; position: relative; }
.trn-ring::before { content: ''; position: absolute; inset: 9px; border-radius: 50%; background: var(--panel); }
.trn-ring div { position: relative; text-align: center; line-height: 1; }
.trn-ring strong { display: block; font-family: var(--display); font-size: 2rem; font-weight: 600; }
.trn-ring span { font-family: var(--mono); font-size: 10px; letter-spacing: 1px; color: var(--faint); text-transform: uppercase; }
.trn-stats { margin: 0; display: grid; gap: 10px; }
.trn-stats div { display: flex; flex-direction: column; }
.trn-stats dt { font-family: var(--mono); font-size: 11px; letter-spacing: 1px; color: var(--faint); text-transform: uppercase; }
.trn-stats dd { margin: 0; font-family: var(--display); font-size: 1.6rem; font-weight: 600; line-height: 1.1; font-variant-numeric: tabular-nums; }
.trn-panel-sec > summary { font-family: var(--mono); font-size: 12px; letter-spacing: 1px; color: var(--faint); text-transform: uppercase; cursor: pointer; list-style: none; margin-bottom: 10px; display: flex; justify-content: space-between; gap: 8px; }
.trn-panel-sec > summary::-webkit-details-marker { display: none; }
.trn-panel-sec > summary::after { content: '▾'; }
.trn-panel-sec:not([open]) > summary { margin-bottom: 0; }
.trn-panel-sec:not([open]) > summary::after { content: '▸'; }

/* Saved progress */
.trn-saves { display: flex; flex-direction: column; gap: 10px; }
.trn-saves .who { display: flex; align-items: center; gap: 8px; font: 600 16px var(--body); color: var(--text); overflow-wrap: anywhere; }
.trn-saves .who::before { content: ''; flex: none; width: 8px; height: 8px; border-radius: 50%; background: var(--ok); }
.trn-saves .status { font: 12px var(--mono); color: var(--faint); }
.trn-saves .status.is-warn { color: var(--warn); }
.trn-saves h4 { margin: 6px 0 0; font: 500 11px var(--mono); letter-spacing: 1px; color: var(--faint); text-transform: uppercase; }
.trn-row { display: flex; flex-wrap: wrap; gap: 6px; }
.trn-mini { font: 500 13px var(--body); color: var(--text); background: var(--bg-2); border: 1px solid var(--line-2); padding: 0 10px; min-height: 36px; cursor: pointer; }
.trn-mini:hover { border-color: var(--text-2); }
.trn-mini--danger { border-color: #7A2A2A; color: var(--bad); }
.trn-mini--go { background: var(--accent); border-color: var(--accent); color: #FFFFFF; }
.trn-profiles { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; }
.trn-profiles li { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 6px; align-items: center; border-top: 1px solid var(--line); padding: 6px 0; font-size: 14px; color: var(--text-2); }
.trn-profiles li > span { overflow-wrap: anywhere; }
.trn-profiles .meta { display: block; font: 11px var(--mono); color: var(--faint); }
.trn-profiles .is-active { color: var(--ok); }
.trn-inline { display: flex; gap: 6px; }
.trn-inline input { flex: 1; min-width: 0; min-height: 36px; background: var(--bg-2); border: 1px solid var(--line-2); color: var(--text); padding: 4px 8px; font: 14px var(--body); }
.trn-savemsg { font-size: 13px; color: var(--ok); margin: 0; }
.trn-savemsg.is-bad { color: var(--bad); }
.trn-savemsg:empty { display: none; }

/* Module and step tree */
.trn-tree { display: flex; flex-direction: column; gap: 2px; }
.trn-tmod > summary { list-style: none; display: grid; grid-template-columns: 26px minmax(0, 1fr) auto; gap: 8px; align-items: center; padding: 8px 8px 8px 10px; cursor: pointer; font: 500 14px var(--body); color: var(--text-2); min-height: 40px; border-left: 2px solid transparent; }
.trn-tmod > summary::-webkit-details-marker { display: none; }
.trn-tmod > summary:hover { background: var(--panel-2); color: #FFFFFF; }
.trn-tmod .num { font-family: var(--mono); font-size: 12px; color: var(--faint); }
.trn-tmod .count { font-family: var(--mono); font-size: 11px; color: var(--faint); }
.trn-tmod.is-current > summary { border-left-color: var(--accent); background: var(--panel-2); color: #FFFFFF; }
.trn-tmod.is-done .num { color: var(--ok); }
.trn-tmod ol { list-style: none; margin: 2px 0 8px 22px; padding: 0 0 0 6px; border-left: 1px solid var(--line); display: flex; flex-direction: column; }
.trn-tstep { width: 100%; display: grid; grid-template-columns: 18px minmax(0, 1fr) auto; gap: 8px; align-items: center; text-align: left; background: transparent; border: 0; color: var(--muted); font: 13px/1.35 var(--body); padding: 6px 8px; cursor: pointer; min-height: 36px; }
.trn-tstep:hover { background: var(--panel-2); color: #FFFFFF; }
.trn-tstep .ico { font: 12px var(--mono); color: var(--faint); text-align: center; }
.trn-tstep .st { font: 11px var(--mono); color: #5F6B79; white-space: nowrap; }
.trn-tstep.is-done .st, .trn-tstep.is-done .ico { color: var(--ok); }
.trn-tstep.is-current { background: var(--panel-2); color: #FFFFFF; box-shadow: inset 2px 0 0 var(--accent); }
.trn-reset { align-self: flex-start; background: transparent; border: 0; color: var(--faint); font: 13px var(--body); text-decoration: underline; cursor: pointer; padding: 4px 0; }
.trn-reset:hover { color: var(--text); }
.trn-reset.is-armed, .trn-mini.is-armed, .btn.is-armed { color: var(--bad); border-color: var(--bad); }

.trn-main { min-width: 0; display: flex; flex-direction: column; gap: 16px; }
.trn-progress { height: 6px; background: var(--line); }
.trn-progress span { display: block; height: 100%; background: var(--accent); transition: width 0.5s ease; }
.trn-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 10px 20px; }
.trn-head .eyebrow { font-size: 12px; }
.trn-dots { display: flex; gap: 6px; list-style: none; margin: 0; padding: 0; align-items: center; }
.trn-dots li { width: 10px; height: 10px; border: 1px solid var(--line-2); }
.trn-dots .is-done { background: var(--ok); border-color: var(--ok); }
.trn-dots .is-current { background: var(--text); border-color: var(--text); }
.trn-dots-label { font-family: var(--mono); font-size: 12px; color: var(--faint); margin-left: 8px; }

.trn-card { background: var(--panel); border: 1px solid var(--line); padding: clamp(20px, 3vw, 36px); display: flex; flex-direction: column; gap: 20px; }
.trn-card h2 { font-family: var(--display); font-weight: 600; letter-spacing: -0.02em; font-size: clamp(1.7rem, 3vw, 2.3rem); line-height: 1; margin: 0; }
.trn-kind { font-family: var(--mono); font-size: 11px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--signal); }
.trn-body { display: flex; flex-direction: column; gap: 14px; color: var(--text-2); font-size: 17px; max-width: 70ch; }
.trn-body strong { color: var(--text); }
.trn-body ul, .trn-body ol { margin: 0; padding-left: 1.3em; display: flex; flex-direction: column; gap: 6px; }
.trn-body code, .trn-card code { font-family: var(--mono); font-size: 0.92em; background: var(--bg-2); border: 1px solid var(--line); padding: 1px 6px; color: var(--text); }
.trn-flow { font-family: var(--mono); font-size: 15px; color: var(--text); background: var(--bg-2); border: 1px solid var(--line); padding: 12px 14px; }
.trn-callout { border-left: 3px solid var(--info); background: rgba(141, 182, 232, 0.07); padding: 12px 16px; font-size: 15px; color: var(--text-2); max-width: 70ch; }
.trn-callout--warn { border-left-color: var(--warn); background: rgba(232, 184, 101, 0.08); }
.trn-figure { margin: 0; display: flex; flex-direction: column; gap: 8px; }
.trn-figure img { border: 1px solid var(--line); background: #FFFFFF; max-height: 460px; width: auto; max-width: 100%; }
.trn-figure img.is-dark { background: transparent; }
.trn-figure figcaption { font-size: 13px; color: var(--faint); }
.trn-cols { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.trn-cols--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.trn-tile { background: var(--bg-2); border: 1px solid var(--line); padding: 18px; display: flex; flex-direction: column; gap: 8px; }
.trn-tile h3 { font-family: var(--display); font-weight: 600; font-size: 1.2rem; line-height: 1.2; margin: 0; color: var(--text); }
.trn-tile p { font-size: 15px; color: var(--muted); }
.trn-tile .mono { font-size: 11px; letter-spacing: 1px; color: var(--signal); }
@media (max-width: 1100px) { .trn-cols--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .trn-cols, .trn-cols--4 { grid-template-columns: minmax(0, 1fr); } }
.trn-checklist { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 24px; counter-reset: p; }
.trn-checklist li { counter-increment: p; display: grid; grid-template-columns: 34px minmax(0, 1fr); gap: 8px; font-size: 15px; color: var(--text-2); border-top: 1px solid var(--line); padding-top: 10px; }
.trn-checklist li::before { content: counter(p, decimal-leading-zero); font-family: var(--mono); font-size: 12px; color: var(--signal); padding-top: 3px; }
@media (max-width: 700px) { .trn-checklist { grid-template-columns: minmax(0, 1fr); } }
.trn-phone-wifi { width: min(100%, 340px); background: #000000; color: #FFFFFF; border-radius: 14px; padding: 16px; font: 15px var(--body); display: flex; flex-direction: column; gap: 10px; }
.trn-phone-wifi .row { background: #1E1F22; border-radius: 12px; padding: 12px 14px; display: flex; justify-content: space-between; align-items: center; }
.trn-phone-wifi .toggle { width: 38px; height: 22px; border-radius: 11px; background: #A8C7FA; position: relative; }
.trn-phone-wifi .toggle::after { content: ''; position: absolute; right: 3px; top: 3px; width: 16px; height: 16px; border-radius: 50%; background: #0B3D91; }
.trn-phone-wifi small { color: #BDC1C6; display: block; font-size: 13px; }

/* Task / hint boxes and feedback */
.trn-task { display: flex; gap: 12px; align-items: flex-start; border: 1px dashed var(--line-2); padding: 12px 14px; font-size: 15px; color: var(--text-2); }
.trn-task b { font-family: var(--mono); font-size: 11px; letter-spacing: 1px; color: var(--warn); font-weight: 500; padding-top: 3px; flex: none; }
.trn-task--hint b { color: var(--info); }
.trn-result { border-left: 3px solid var(--ok); background: rgba(127, 209, 158, 0.08); padding: 12px 16px; font-size: 15px; color: var(--text); }
.trn-result--meh { border-left-color: var(--warn); background: rgba(232, 184, 101, 0.08); }
.trn-result--bad { border-left-color: var(--bad); background: rgba(242, 121, 107, 0.08); }
.trn-skip { align-self: flex-start; background: transparent; border: 0; color: var(--faint); font: 13px var(--body); text-decoration: underline; cursor: pointer; padding: 0; }

/* Navigation */
.trn-nav { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.trn-nav .btn:disabled { opacity: 0.4; cursor: not-allowed; }
.trn-nav .btn--ghost:disabled:hover { border-color: var(--line-2); }
.trn-nav-msg { font-size: 14px; color: var(--faint); flex: 1 1 200px; text-align: center; }

/* Quiz */
.trn-q { font-size: 1.2rem; font-weight: 600; color: var(--text); max-width: 60ch; }
.trn-opts { display: grid; gap: 10px; list-style: none; margin: 0; padding: 0; }
.trn-opts--art { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.trn-opt { width: 100%; display: flex; gap: 14px; align-items: flex-start; text-align: left; background: var(--bg-2); border: 1px solid var(--line-2); color: var(--text); font: 16px/1.45 var(--body); padding: 14px 16px; cursor: pointer; min-height: 52px; }
.trn-opt:hover:not(:disabled) { border-color: var(--text-2); }
.trn-opt:disabled { cursor: default; }
.trn-opt .key { flex: none; width: 26px; height: 26px; display: grid; place-items: center; border: 1px solid var(--line-2); font: 500 12px var(--mono); color: var(--faint); }
.trn-opt[aria-pressed="true"] { border-color: var(--info); }
.trn-opt[aria-pressed="true"] .key { background: var(--info); color: var(--bg); border-color: var(--info); }
.trn-opt.is-right { border-color: var(--ok); background: rgba(127, 209, 158, 0.1); }
.trn-opt.is-right .key { background: var(--ok); color: var(--bg); border-color: var(--ok); }
.trn-opt.is-wrong { border-color: var(--bad); background: rgba(242, 121, 107, 0.08); opacity: 0.8; }
.trn-opt.is-wrong .key { background: var(--bad); color: var(--bg); border-color: var(--bad); }
.trn-opt.is-missed { border-style: dashed; border-color: var(--ok); }
.trn-opts--art .trn-opt { flex-direction: column; align-items: stretch; }
.trn-opts--art svg { width: 100%; height: auto; background: #0A0E13; border: 1px solid var(--line); }
.trn-explain { font-size: 15px; color: var(--text-2); border-top: 1px solid var(--line); padding-top: 14px; max-width: 70ch; }
.trn-explain strong { color: var(--ok); }
.trn-check { align-self: flex-start; }

/* Ordering */
.trn-order { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.trn-order li { display: grid; grid-template-columns: 32px minmax(0, 1fr) auto; gap: 10px; align-items: center; background: var(--bg-2); border: 1px solid var(--line-2); padding: 8px 8px 8px 12px; user-select: none; }
.trn-order li.is-drag { opacity: 0.85; border-color: var(--info); box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5); position: relative; z-index: 2; }
.trn-order .grip { font-family: var(--mono); color: var(--faint); cursor: grab; font-size: 13px; touch-action: none; padding: 10px 0; }
.trn-order .txt { font-size: 16px; color: var(--text); }
.trn-order .mv { display: flex; gap: 4px; }
.trn-order .mv button { width: 40px; height: 40px; background: var(--panel); border: 1px solid var(--line-2); color: var(--text); cursor: pointer; font-size: 14px; }
.trn-order .mv button:disabled { opacity: 0.3; cursor: default; }
.trn-order li.is-right { border-color: var(--ok); }
.trn-order li.is-right .grip { color: var(--ok); }
.trn-order li.is-wrong { border-color: var(--bad); }

/* Sorting */
.trn-sort { display: flex; flex-direction: column; gap: 8px; }
.trn-sort-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 12px; align-items: center; background: var(--bg-2); border: 1px solid var(--line-2); padding: 8px 8px 8px 14px; }
.trn-sort-row.is-right { border-color: var(--ok); }
.trn-sort-row.is-wrong { border-color: var(--bad); }
.trn-seg { display: flex; flex-wrap: wrap; gap: 4px; }
.trn-seg button { min-height: 40px; padding: 0 12px; background: var(--panel); border: 1px solid var(--line-2); color: var(--text-2); font: 500 14px var(--body); cursor: pointer; }
.trn-seg button[aria-pressed="true"] { background: var(--text); color: var(--bg); border-color: var(--text); }
@media (max-width: 640px) { .trn-sort-row { grid-template-columns: minmax(0, 1fr); } }

/* Hotspot tour */
.trn-spots { position: relative; border: 1px solid var(--line); }
.trn-spots img { display: block; width: 100%; height: auto; }
.trn-spot { position: absolute; transform: translate(-50%, -50%); width: 30px; height: 30px; border-radius: 50%; border: 2px solid #FFFFFF; background: var(--accent); color: #FFFFFF; font: 600 13px var(--mono); cursor: pointer; display: grid; place-items: center; box-shadow: 0 0 0 0 rgba(42, 102, 214, 0.7); animation: trn-pulse 2s infinite; }
.trn-spot.is-seen { background: #3A4757; animation: none; }
.trn-spot[aria-expanded="true"] { background: var(--info); color: var(--bg); animation: none; }
@keyframes trn-pulse { 0% { box-shadow: 0 0 0 0 rgba(42, 102, 214, 0.7); } 70% { box-shadow: 0 0 0 12px rgba(42, 102, 214, 0); } 100% { box-shadow: 0 0 0 0 rgba(42, 102, 214, 0); } }
.trn-spot-info { min-height: 72px; border: 1px solid var(--line); background: var(--bg-2); padding: 12px 16px; font-size: 15px; color: var(--text-2); }
.trn-spot-info strong { color: var(--text); display: block; margin-bottom: 2px; }
.trn-spot-count { font-family: var(--mono); font-size: 12px; color: var(--faint); }

/* Simulation frame */
.trn-sim { position: relative; background: var(--bg-2); border: 1px solid var(--line); display: flex; flex-direction: column; }
.trn-sim-tag { position: absolute; top: 0; right: 0; z-index: 3; font-family: var(--mono); font-size: 10px; letter-spacing: 1.5px; color: var(--faint); background: var(--bg); padding: 4px 8px; pointer-events: none; }
.trn-stage { position: relative; width: 100%; }
.trn-canvas { display: block; width: 100%; touch-action: none; cursor: crosshair; }
.trn-canvas:focus-visible { outline: 2px solid var(--accent-text); outline-offset: -2px; }
.trn-controls { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; padding: 12px; border-top: 1px solid var(--line); }
.trn-controls .grow { flex: 1 1 180px; }
.trn-sim label.grow { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--text-2); }
.trn-sim label.grow input[type="range"] { flex: 1; min-width: 120px; accent-color: var(--accent); }
.trn-sim label.grow b { white-space: nowrap; font-weight: 500; color: var(--text); }
.trn-controls label { font-size: 14px; color: var(--text-2); display: flex; align-items: center; gap: 8px; }
.trn-controls input[type="range"] { width: 100%; accent-color: var(--accent); }
.trn-chip { font: 500 14px var(--body); color: var(--text); background: var(--panel); border: 1px solid var(--line-2); padding: 0 14px; min-height: 44px; cursor: pointer; }
.trn-chip:hover:not(:disabled) { border-color: var(--text-2); }
.trn-chip[aria-pressed="true"] { background: var(--text); color: var(--bg); border-color: var(--text); }
.trn-chip:disabled { opacity: 0.4; cursor: not-allowed; }
.trn-chip--go { background: var(--accent); border-color: var(--accent); color: #FFFFFF; }
.trn-chip--go:hover:not(:disabled) { background: var(--accent-hover); border-color: var(--accent-hover); }
.trn-readout { font-family: var(--mono); font-size: 13px; color: var(--text-2); padding: 0 12px 12px; margin: 0; }
.trn-readout b { color: var(--text); font-weight: 500; }
.trn-grouplabel { font-family: var(--mono); font-size: 11px; letter-spacing: 1px; color: var(--faint); text-transform: uppercase; width: 100%; }
.trn-panel { padding: 12px; display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.trn-check-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 4px; font-size: 14px; color: var(--faint); }
.trn-check-list li::before { content: '○ '; font-family: var(--mono); }
.trn-check-list li.is-on { color: var(--ok); }
.trn-check-list li.is-on::before { content: '● '; }

/* Exercises on the Liberandum screen simulator (sims-liberandum.js) */
.trn-sim--device { padding: 12px; gap: 12px; }
/* Narrow screens: the simulator uses the card's padding too, to keep the phone at real size longer. */
@media (max-width: 1000px) { .trn-card .trn-sim--device { margin-inline: calc(-1 * clamp(20px, 3vw, 36px)); padding: 8px; border-inline: 0; } }
.trn-lbx { display: grid; grid-template-columns: minmax(0, 1fr); background: var(--panel); border: 1px solid var(--line); }
.trn-lbx.has-side { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
.trn-lbx:not(.has-side) > .trn-lbx-col + .trn-lbx-col { display: none; }
.trn-lbx-col { padding: 12px 14px; display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.trn-lbx-col + .trn-lbx-col { border-left: 1px solid var(--line); }
.trn-lbx-steps { counter-reset: s; }
.trn-lbx-steps li { counter-increment: s; }
.trn-lbx-steps li::before { content: counter(s) ' ○ '; }
.trn-lbx-steps li.is-on::before { content: counter(s) ' ● '; }
.trn-lbx-msg { margin: 0; font-size: 15px; color: var(--text); min-height: 1.4em; }
.trn-lbx-msg:empty { display: none; }
.trn-lbx-q { display: flex; flex-direction: column; gap: 10px; }
.trn-lbx-q .trn-q { font-size: 1.05rem; margin: 0; }
.trn-lbx-q .trn-opt { font-size: 15px; padding: 10px 12px; min-height: 44px; }
.trn-lbx-tabs { display: flex; flex-wrap: wrap; gap: 8px; }
.trn-lbx-aside { display: flex; flex-direction: column; gap: 8px; }
.trn-lbx-actions { display: flex; flex-direction: column; gap: 8px; }
.trn-lbx-actions .trn-chip { width: 100%; }
.trn-lbx-actions .trn-chip[hidden] { display: none; }
.trn-lbx-status { margin: 0; font-family: var(--mono); font-size: 12px; color: var(--muted); }
.trn-lbx-status:empty { display: none; }
@media (max-width: 760px) { .trn-lbx, .trn-lbx.has-side { grid-template-columns: minmax(0, 1fr); } .trn-lbx-col + .trn-lbx-col { border-left: 0; border-top: 1px solid var(--line); } }
/* A simulator step that needs the full width to show the phone at real size: the course panel goes below. */
.trn.trn--device { grid-template-columns: minmax(0, 1fr); }
.trn.trn--device .trn-side { order: 2; position: static; max-height: none; }


/* Processing chain */
.trn-chain { padding: 16px; display: flex; flex-direction: column; gap: 14px; }
.trn-chain-row { display: flex; align-items: stretch; gap: 0; }
.trn-chain-node { flex: 1 1 0; min-width: 0; background: var(--panel); border: 1px solid var(--line-2); color: var(--text); font: 600 14px var(--body); padding: 12px 8px; cursor: pointer; text-align: center; min-height: 64px; }
.trn-chain-node[aria-pressed="true"] { border-color: var(--signal); background: rgba(100, 210, 255, 0.08); }
.trn-chain-node small { display: block; font: 11px var(--mono); color: var(--faint); letter-spacing: 1px; margin-bottom: 4px; }
.trn-chain-arrow { flex: 0 0 28px; position: relative; align-self: center; height: 2px; background: var(--line-2); }
.trn-chain-arrow::after { content: ''; position: absolute; top: -4px; left: 0; width: 10px; height: 10px; border-radius: 50%; background: var(--accent-text); animation: trn-flow 1.6s linear infinite; }
@keyframes trn-flow { from { left: -4px; opacity: 0; } 20% { opacity: 1; } to { left: 22px; opacity: 0; } }
.trn-chain-info { background: var(--bg); border: 1px solid var(--line); padding: 12px 14px; font-size: 15px; color: var(--text-2); min-height: 64px; margin: 0; }
.trn-compare { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.trn-compare > div { border: 1px solid var(--line); padding: 14px; display: flex; flex-direction: column; gap: 8px; }
.trn-compare h4 { margin: 0; font: 500 12px var(--mono); letter-spacing: 1px; color: var(--faint); text-transform: uppercase; }
.trn-compare .boxes { display: flex; flex-wrap: wrap; gap: 6px; }
.trn-compare .hw { font: 13px var(--mono); padding: 8px 10px; border: 1px solid var(--line-2); background: var(--panel); color: var(--text-2); }
.trn-compare .hw--chip { border-style: solid; border-color: #6B4F2A; color: var(--warn); }
.trn-compare .sw { font: 13px var(--mono); padding: 8px 10px; border: 1px solid var(--line-2); color: var(--text-2); animation: trn-glow 4s infinite; }
.trn-compare .sw:nth-child(2) { animation-delay: 1s; } .trn-compare .sw:nth-child(3) { animation-delay: 2s; } .trn-compare .sw:nth-child(4) { animation-delay: 3s; }
@keyframes trn-glow { 0%, 20% { border-color: var(--ok); color: var(--ok); background: rgba(127, 209, 158, 0.12); } 30%, 100% { border-color: var(--line-2); color: var(--text-2); background: transparent; } }
.trn-compare p { font-size: 14px; color: var(--muted); }
@media (max-width: 700px) { .trn-chain-row { flex-direction: column; } .trn-chain-arrow { flex-basis: 18px; width: 2px; height: 18px; align-self: center; } .trn-chain-arrow::after { left: -4px; animation-name: trn-flow-v; } .trn-compare { grid-template-columns: minmax(0, 1fr); } }
@keyframes trn-flow-v { from { top: -4px; opacity: 0; } 20% { opacity: 1; } to { top: 12px; opacity: 0; } }

/* Stage stepper */
.trn-stages { padding: 16px; display: flex; flex-direction: column; gap: 14px; }
.trn-stage-row { display: flex; gap: 6px; flex-wrap: wrap; }
.trn-stage-btn { flex: 1 1 110px; background: var(--panel); border: 1px solid var(--line-2); color: var(--text-2); font: 600 14px var(--body); padding: 10px; cursor: pointer; text-align: left; min-height: 64px; display: flex; flex-direction: column; gap: 4px; }
.trn-stage-btn span { font: 500 20px var(--display); color: var(--faint); }
.trn-stage-btn[aria-pressed="true"] { border-color: var(--accent); background: rgba(42, 102, 214, 0.16); color: #FFFFFF; }
.trn-stage-btn[aria-pressed="true"] span { color: var(--signal); }
.trn-stage-btn.is-seen span { color: var(--ok); }
.trn-stage-detail { background: var(--bg); border: 1px solid var(--line); padding: 14px 16px; min-height: 150px; }
.trn-stage-detail h4 { margin: 0 0 8px; font: 600 1.15rem var(--display); color: var(--text); }
.trn-stage-detail ol { margin: 0; padding-left: 1.3em; display: flex; flex-direction: column; gap: 4px; color: var(--text-2); font-size: 15px; }
.trn-stage-detail p { margin-top: 10px; font-size: 14px; color: var(--warn); }

/* Results */
.trn-score-big { font-family: var(--display); font-weight: 600; font-size: clamp(3.5rem, 9vw, 6rem); line-height: 0.9; }
.trn-score-big small { font-size: 0.4em; color: var(--faint); }
.trn-bars { display: flex; flex-direction: column; gap: 8px; }
.trn-bar-row { display: grid; grid-template-columns: minmax(0, 1fr) 160px 64px; gap: 12px; align-items: center; font-size: 14px; color: var(--text-2); }
.trn-bar-row .bar { height: 10px; background: var(--panel-2); margin: 0; }
.trn-bar-row .bar span { background: var(--ok); }
.trn-bar-row.is-low .bar span { background: var(--warn); }
.trn-bar-row .val { font-family: var(--mono); font-size: 12px; text-align: right; color: var(--faint); }
@media (max-width: 600px) { .trn-bar-row { grid-template-columns: minmax(0, 1fr) 70px; } .trn-bar-row .bar { grid-column: 1 / -1; order: 3; } }
.trn-name { display: flex; flex-direction: column; gap: 6px; font-size: 14px; color: var(--text-2); max-width: 360px; }
.trn-name input { min-height: 44px; background: var(--bg-2); border: 1px solid var(--line-2); color: var(--text); padding: 8px 12px; font: 16px var(--body); }
.trn-cert { display: grid; gap: 14px; border: 1px solid var(--line-2); border-left: 3px solid var(--accent); background: var(--bg-2); padding: 18px 20px; max-width: 70ch; }
.trn-cert h3 { margin: 0; }
.trn-cert p { margin: 0; }
.trn-cert-fields { display: flex; flex-wrap: wrap; gap: 14px; }
.trn-cert-fields .trn-name { flex: 1 1 220px; }
.trn-cert-status { font-size: 15px; color: var(--text-2); min-height: 1.4em; }
.trn-print-only { display: none; }

@media (max-width: 960px) {
  .trn { grid-template-columns: minmax(0, 1fr); }
  .trn-side { position: static; max-height: none; }
}

@media (prefers-reduced-motion: reduce) {
  .trn-spot, .trn-chain-arrow::after, .trn-compare .sw { animation: none; }
  .trn-progress span { transition: none; }
}

@media print {
  .site-header, .site-footer, .trn-hero, .trn-side, .trn-nav, .trn-progress, .trn-head, .trn-no-print, .lang-switch { display: none !important; }
  body, .band, .band--alt, .trn-card { background: #FFFFFF !important; color: #000000 !important; border: 0 !important; }
  .trn { display: block; }
  .trn-card * { color: #000000 !important; }
  .trn-print-only { display: block; }
  .trn-bar-row .bar { border: 1px solid #000000; }
  .trn-bar-row .bar span { background: #000000 !important; }
}