/* Hand-built figures for lesson 9, Training stages. */

/* shared: two columns that stack on a phone, bars, chart text, readouts */
.ts-two { display: grid; gap: 22px 28px; grid-template-columns: 1fr; align-items: start; }
@media (min-width: 820px) { .ts-two { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); } }
.ts-track { display: block; height: 18px; border-radius: 6px; background: var(--surface-2); overflow: hidden; min-width: 0; }
.ts-track i { display: block; height: 100%; min-width: 2px; background: var(--accent); transition: width 0.2s; }
.ts-track i.good { background: var(--good); } .ts-track i.bad { background: var(--bad); }
.ts-track i.teacher { background: var(--gold); } .ts-track i.student { background: var(--accent); }
.ts-track i.full { background: var(--ink-3); } .ts-track i.lora { background: var(--gold); }
.ts-axis { stroke: var(--ink-3); stroke-width: 1.2; }
.ts-drop { stroke: var(--ink-3); stroke-dasharray: 4 4; }
.ts-tick { font: 12px var(--f-mono); fill: var(--ink-3); }
.ts-tick.hi { fill: var(--ink); font-weight: 600; }
.ts-tick.pre { fill: var(--ink-2); } .ts-tick.sft { fill: var(--accent-ink); font-weight: 600; }
.ts-work { font: 0.92rem/1.6 var(--f-mono); color: var(--ink-2); margin: 0 0 8px; overflow-wrap: anywhere; }
.ts-big { font: 400 1.5rem/1.25 var(--f-display); margin: 8px 0; overflow-wrap: anywhere; }
.ts-big b { color: var(--gold); font-weight: 400; }
.ts-check { display: flex; gap: 8px; align-items: center; font-size: 0.85rem; color: var(--ink-2); margin: 10px 0; }
.ts-two .slider, .nl-top .slider, .sm-top .slider, .st-temp .slider { font-size: 0.85rem; margin: 6px 0; }
.ts-two .muted { font-size: 0.85rem; line-height: 1.5; }
.ts-two input[type="range"], .st-temp input[type="range"] { width: min(220px, 55vw); }
.sw { display: inline-block; width: 12px; height: 12px; border-radius: 3px; vertical-align: -1px; margin-right: 4px; }
.sw.prompt { background: var(--ink-3); } .sw.reply { background: var(--accent); }
.sw.line { height: 0; width: 18px; border-top: 2px dashed var(--ink-2); vertical-align: 3px; }
.sw.line.sft { border-color: var(--accent); }

/* hero: an assistant is built in layers */
.hs { display: flex; flex-direction: column; align-items: center; gap: 8px; padding: 6px 0 4px; }
.hs-layer { width: max(var(--w), 230px); max-width: 100%; box-sizing: border-box; min-height: 52px; padding: 8px 16px; border-radius: var(--r-2); border: 1.5px solid var(--c); background: color-mix(in oklab, var(--c) 18%, var(--surface)); display: flex; flex-direction: column; justify-content: center; text-align: center; opacity: 0; transition: opacity 0.6s; }
.hs-layer.in { opacity: 1; }
.hs-layer b { font: 500 1rem var(--f-ui); color: var(--ink); }
.hs-layer span { font: 0.82rem/1.3 var(--f-ui); color: var(--ink-2); }
.hs-layer.c1 { --c: var(--c1); } .hs-layer.c2 { --c: var(--c2); } .hs-layer.c3 { --c: var(--c3); } .hs-layer.c7 { --c: var(--c7); }

/* the idea: which stage taught it that? */
.sp-choices { flex-wrap: wrap; margin-bottom: 16px; border-radius: 14px; }
.sp-choices button { white-space: normal; text-align: left; }
.sp-pipe { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 8px; margin: 6px 0 12px; }
.sp-stage { padding: 8px 12px; border-radius: var(--r-1); border: 1px solid var(--line-2); background: var(--surface-2); font: 500 0.88rem var(--f-ui); color: var(--ink-2); transition: background 0.25s, color 0.25s, border-color 0.25s; }
.sp-stage.on { background: var(--gold); color: var(--bg); border-color: var(--gold); }
.sp-arrow { color: var(--ink-3); }
.sp-read { font-size: 0.95rem; line-height: 1.55; min-height: 4.6em; margin: 0; }

/* 1: every position is a guess */
.nl-top, .sm-top, .st-temp { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 22px; margin-bottom: 12px; }
.nl-count, .sm-hint { font-size: 0.85rem; color: var(--ink-3); }
.nl-chips, .sm-chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 4px 0 14px; }
.nl-chip, .sm-chip { min-width: 40px; padding: 6px 10px; border-radius: 8px; text-align: center; font: 500 0.9rem var(--f-mono); color: var(--ink-3); background: var(--surface-2); border: 1px solid var(--line); }
.nl-chip.seen { color: var(--ink); background: var(--accent-soft); border-color: var(--accent); }
.nl-chip.target { color: var(--bg); background: var(--gold); border-color: var(--gold); }
.sm-chip.prompt { color: var(--ink-2); border-style: dashed; }
.sm-chip.reply { color: var(--ink); background: var(--accent-soft); border-color: var(--accent); }
.nl-row { display: grid; grid-template-columns: 82px minmax(0, 1fr) minmax(0, 1fr); gap: 8px 14px; align-items: center; padding: 6px 8px; margin: 2px -8px; border-radius: var(--r-1); font-size: 0.85rem; }
.nl-row.now { background: var(--bg-2); }
.nl-row .slider { margin: 0; }
.nl-row input[type="range"] { width: min(160px, 40vw); }
.nl-lbl { color: var(--ink-2); font-size: 0.85rem; }
.nl-bar { display: grid; grid-template-columns: minmax(0, 1fr) 52px; gap: 10px; align-items: center; }
.nl-bar b { text-align: right; }
@media (max-width: 640px) { .nl-row { grid-template-columns: 82px minmax(0, 1fr); } .nl-bar { grid-column: 1 / -1; } }
.nl-read { font-size: 0.95rem; margin-top: 14px; overflow-wrap: anywhere; }
.nl-big { font: 400 1.5rem/1 var(--f-display); color: var(--gold); }

/* 2: the SFT mask */
.sm-bars { width: 100%; display: block; }
.sm-bar.graded { fill: var(--accent); } .sm-bar.masked { fill: var(--ink-3); fill-opacity: 0.55; }
.sm-avg { stroke-dasharray: 6 4; stroke-width: 1.5; }
.sm-avg.pre { stroke: var(--ink-2); } .sm-avg.sft { stroke: var(--accent); stroke-width: 2; }
.sm-key { font-size: 0.8rem; color: var(--ink-2); margin: 8px 0 0; line-height: 1.8; }
.sm-read { font-size: 0.92rem; margin: 10px 0 0; font-family: var(--f-mono); overflow-wrap: anywhere; }

/* 3a: the taste test */
.tt-curve, .dm-curve { width: 100%; display: block; }
.tt-sig { fill: none; stroke: var(--accent); stroke-width: 2.5; }
.tt-dot { fill: var(--gold); stroke: var(--bg); stroke-width: 2; }
.tt-read .muted, .dm-read .muted { font-size: 0.9rem; }

/* 3b: DPO */
.dm-left .kicker, .dm-right .kicker { margin-bottom: 8px; }
.dm-curve { margin-top: 8px; }
.dm-row, .st-row, .ln-row { display: grid; grid-template-columns: 150px minmax(0, 1fr) 56px; gap: 10px; align-items: center; margin: 10px 0; font-size: 0.88rem; }
.dm-row b, .st-row b, .ln-row b { text-align: right; }
.ln-row { grid-template-columns: 150px minmax(0, 1fr) 100px; }
@media (max-width: 480px) { .dm-row, .st-row, .ln-row { grid-template-columns: minmax(0, 1fr) 70px; } .dm-row .ts-track, .st-row .ts-track, .ln-row .ts-track { grid-column: 1 / -1; } .ln-row { grid-template-columns: minmax(0, 1fr) 100px; } }
.dm-name { color: var(--ink-2); }

/* 4: LoRA */
.ln-ctl { display: grid; gap: 10px; }
.ln-grp { display: flex; flex-wrap: wrap; gap: 4px 18px; align-items: center; padding: 8px 10px; border-radius: var(--r-1); background: var(--bg-2); border: 1px solid var(--line); }
.ln-g { flex-basis: 100%; font: 500 0.8rem var(--f-ui); color: var(--ink-2); }
.ln-grp .slider { margin: 0; font-size: 0.85rem; }
.ln-grp input[type="range"] { width: 110px; }
.ln-flow { display: grid; gap: 8px; margin-top: 14px; }
.ln-step { display: grid; gap: 2px; padding: 8px 12px; border-left: 3px solid var(--ink-3); font-size: 0.85rem; }
.ln-step.adapter { border-color: var(--gold); } .ln-step.out { border-color: var(--accent); }
.ln-step .mono { font-size: 0.9rem; color: var(--ink); overflow-wrap: anywhere; }
.ln-step .mono b { color: var(--gold); }
.ln-tag { font: 600 0.72rem var(--f-ui); text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink-3); }
.ln-count .kicker { margin-bottom: 8px; }
.ln-count .ts-big { margin-top: 14px; }

/* 5: the flowchart walk */
.aw-ask { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 6px 14px; padding: 8px 0; border-bottom: 1px solid var(--line); font-size: 0.9rem; }
.aw-ask.off { opacity: 0.45; }
.aw-qt { flex: 1 1 200px; }
.aw-q .kicker { margin: 14px 0 8px; }
.aw-presets { display: flex; flex-wrap: wrap; gap: 8px; }
.aw-presets .btn { height: auto; min-height: 36px; padding: 6px 12px; white-space: normal; text-align: left; line-height: 1.3; }
.aw-chart { display: grid; grid-template-columns: minmax(0, 1.4fr) auto minmax(0, 1fr); gap: 4px 8px; align-items: center; font-size: 0.85rem; }
.aw-node { padding: 8px 10px; border-radius: var(--r-1); border: 1px solid var(--line-2); background: var(--surface-2); color: var(--ink-2); line-height: 1.35; transition: background 0.25s, color 0.25s; }
.aw-node.q { border-radius: 14px; }
.aw-node.on { border-color: var(--accent); color: var(--ink); background: var(--accent-soft); }
.aw-node.land { background: var(--gold); border-color: var(--gold); color: var(--bg); font-weight: 600; }
.aw-edge { color: var(--ink-3); font: 0.78rem/1.3 var(--f-ui); white-space: nowrap; }
.aw-edge.down { grid-column: 1; padding: 2px 0 2px 12px; white-space: normal; }
.aw-edge.on { color: var(--ink); font-weight: 600; }
.aw-read { font-size: 0.92rem; margin-top: 14px; }
.aw-read b { color: var(--gold); }
@media (max-width: 480px) { .aw-chart { font-size: 0.8rem; } .aw-edge { white-space: normal; } }

/* 6: soft targets */
.st-side .kicker { margin-bottom: 6px; }
.st-side .slider { font-size: 0.85rem; margin: 4px 0; }
.st-side input[type="range"] { width: min(180px, 45vw); }
.st-bars { margin-top: 10px; }
.st-read { font-size: 0.9rem; font-family: var(--f-mono); margin-top: 14px; line-height: 1.7; overflow-wrap: anywhere; }
.st-read b { color: var(--gold); }