.tn-host { position: relative; padding: clamp(80px, 10vw, 140px) 0; background: linear-gradient(180deg, var(--ink), var(--ink-3)); }
.tn-host-head { max-width: 860px; margin-bottom: clamp(36px, 5vw, 70px); }
.tn-host-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(30px, 5vw, 80px); align-items: start; }
.tn-host-visual { position: sticky; top: 110px; }
.tn-maker { margin: 0; border-radius: 18px; overflow: hidden; background: rgba(6,13,23,.85); border: 1px solid rgba(255,255,255,.10); box-shadow: 0 60px 120px -60px rgba(0,0,0,.95), 0 30px 80px -60px rgba(153,44,255,.5); }
.tn-maker-bar { display: flex; align-items: center; gap: 6px; padding: 12px 16px; border-bottom: 1px solid rgba(255,255,255,.07); background: rgba(255,255,255,.02); }
.tn-maker-bar i { width: 9px; height: 9px; border-radius: 50%; background: rgba(255,255,255,.14); }
.tn-maker-bar span { margin-left: 10px; color: var(--muted); font: 500 12px/1 var(--f-body); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tn-maker-body { display: grid; grid-template-columns: 1.25fr 1fr; gap: 18px; padding: 20px; }
.tn-maker-form { display: grid; gap: 10px; align-content: start; }
.tn-mf-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.tn-mf { display: grid; gap: 5px; min-width: 0; }
.tn-mf > span, .tn-unlock > span { font: 600 10px/1 var(--f-ui); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.tn-mf b { display: block; min-height: 36px; padding: 10px 11px; border-radius: 8px; border: 1px solid rgba(255,255,255,.10); background: rgba(255,255,255,.03); font: 500 12px/1.3 var(--f-body); color: var(--text-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tn-mf b i { color: #b88cff; }
.tn-code { display: grid; grid-template-columns: repeat(6, 1fr); gap: 6px; }
.tn-code i { height: 38px; border-radius: 8px; border: 1px solid rgba(208,250,0,.35); background: rgba(208,250,0,.04); position: relative; }
.tn-code i::after { content: ""; position: absolute; left: 50%; top: 50%; width: 7px; height: 7px; margin: -3.5px; border-radius: 50%; background: var(--lime); }
.tn-mf-code small { color: var(--muted); font: 400 11px/1.4 var(--f-body); }
.tn-unlock ul { list-style: none; margin: 6px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.tn-unlock li { padding: 7px 10px; border-radius: 999px; border: 1px solid rgba(184,140,255,.35); color: #cdb4ff; font: 600 11px/1 var(--f-ui); }
.tn-art { display: grid; gap: 10px; align-content: start; }
.tn-art-card { position: relative; aspect-ratio: 4/5; border-radius: 12px; overflow: hidden; display: flex; flex-direction: column; justify-content: flex-end; gap: 4px; padding: 16px; border: 1px solid rgba(255,255,255,.12); background: url(../img/gpt-3-800.webp) 62% 12% / auto 190% no-repeat, #272a30; transition: filter .8s var(--ease-out); }
.tn-art-card::before { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(6,13,23,.95), rgba(6,13,23,.1) 70%); transition: background .8s var(--ease-out); }
.tn-art-card > * { position: relative; }
.tn-art-card small { font: 700 9px/1 var(--f-ui); letter-spacing: .2em; color: var(--lime); }
.tn-art-card strong { font: 800 26px/.95 var(--f-display); text-transform: uppercase; }
.tn-art-card em { font: 500 12px/1.3 var(--f-body); color: var(--text-2); font-style: normal; }
.tn-art-card[data-theme="stadium"]::before { background: linear-gradient(0deg, rgba(4,20,40,.95), rgba(20,70,120,.25) 70%); }
.tn-art-card[data-theme="neon"]::before { background: linear-gradient(0deg, rgba(20,4,40,.95), rgba(153,44,255,.35) 70%); }
.tn-art-themes { display: flex; gap: 6px; flex-wrap: wrap; }
.tn-art-themes span { padding: 6px 9px; border-radius: 6px; border: 1px solid rgba(255,255,255,.10); color: var(--muted); font: 600 10px/1 var(--f-ui); transition: color .4s, border-color .4s; }
.tn-art-themes span.is-on { color: var(--lime); border-color: rgba(208,250,0,.45); }
/* step gating of the illustration */
.tn-host [data-show] { transition: opacity .7s var(--ease-out), transform .7s var(--ease-out), filter .7s; }
.tn-host[data-step="1"] [data-show="2"], .tn-host[data-step="1"] [data-show="3"], .tn-host[data-step="1"] [data-show="4"],
.tn-host[data-step="2"] [data-show="3"], .tn-host[data-step="2"] [data-show="4"],
.tn-host[data-step="3"] [data-show="4"] { opacity: .16; filter: grayscale(1); transform: translateY(6px); }
.tn-steps { list-style: none; margin: 0; padding: 0; }
.tn-step { position: relative; min-height: 62vh; display: flex; flex-direction: column; justify-content: center; padding: 0 0 0 26px; border-left: 1px solid rgba(255,255,255,.10); transition: opacity .6s var(--ease-out); }
.tn-step::before { content: ""; position: absolute; left: -1px; top: 50%; width: 2px; height: 0; background: var(--lime); transform: translateY(-50%); transition: height .8s var(--ease-out); }
.tn-step-n { font: 800 15px/1 var(--f-display); color: var(--lime); letter-spacing: .1em; }
.tn-step h3 { margin: 12px 0 10px; font: 800 clamp(28px, 3vw, 40px)/1 var(--f-display); text-transform: uppercase; }
.tn-step p { margin: 0; color: var(--text-2); font: 400 17px/1.65 var(--f-body); max-width: 44ch; }
.tn-step-ctas { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; margin-top: 24px; }
.js-steps .tn-step { opacity: .35; }
.js-steps .tn-step.is-active { opacity: 1; }
.js-steps .tn-step.is-active::before { height: 60%; }
@media (max-width: 1023px) {
  .tn-host-grid { grid-template-columns: 1fr; }
  .tn-host-visual { position: relative; top: 0; }
  .tn-step { min-height: 0; padding: 26px 0 26px 22px; }
  .js-steps .tn-step { opacity: 1; }
}
@media (max-width: 560px) {
  .tn-maker-body { grid-template-columns: 1fr; padding: 14px; }
  .tn-art-card { aspect-ratio: 16/10; }
  .tn-step-ctas .btn { width: 100%; justify-content: center; }
}