/* Personal-site story scenes: persistent Soul creation + flexible collaboration. */

.runtime-roadmap { margin-top: 46px; padding: 26px; border: 1px solid var(--line); border-radius: var(--r-lg); background: var(--paper); box-shadow: var(--shadow-soft); }
.runtime-legend { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-bottom: 20px; color: var(--ink-faint); font: 500 10px/1 var(--font-mono); letter-spacing: .1em; text-transform: uppercase; }
.runtime-legend span { display: inline-flex; align-items: center; gap: 7px; }
.runtime-legend i { width: 7px; height: 7px; border: 1px solid var(--line-strong); border-radius: 50%; background: var(--paper-2); }
.runtime-legend i.is-ready { border-color: var(--amber); background: var(--amber); }
.runtime-badge-cloud { display: flex; flex-wrap: wrap; gap: 10px; }
.runtime-badge { display: inline-flex; align-items: center; gap: 9px; min-height: 45px; padding: 6px 16px 6px 8px; border: 1px solid var(--line-strong); border-radius: 999px; color: var(--ink-faint); background: rgba(246,239,221,.52); font-size: 14px; font-weight: 600; letter-spacing: var(--track-tight); }
.runtime-badge i { position: relative; display: block; flex: 0 0 30px; width: 30px; height: 30px; border: 1px solid var(--line); border-radius: 50%; color: var(--ink-faint); background: var(--paper); font-size: 0; font-style: normal; line-height: 0; }
.runtime-badge i::before { content: ''; position: absolute; top: 50%; left: 50%; display: block; width: 17px; height: 17px; background-image: var(--runtime-mark); background-position: 50% 50%; background-repeat: no-repeat; background-size: contain; transform: translate(-50%, -50%); transform-origin: 50% 50%; }
.runtime-badge:nth-child(1) { --runtime-mark: url("../assets/agents/kimi-code.svg"); }
.runtime-badge:nth-child(2) { --runtime-mark: url("../assets/agents/zcode.svg"); }
.runtime-badge:nth-child(3) { --runtime-mark: url("../assets/agents/codex.svg"); }
.runtime-badge:nth-child(4) { --runtime-mark: url("../assets/agents/claude-code.svg"); }
.runtime-badge:nth-child(5) { --runtime-mark: url("../assets/agents/cursor.svg"); }
.runtime-badge:nth-child(6) { --runtime-mark: url("../assets/agents/grok.svg"); }
.runtime-badge:nth-child(7) { --runtime-mark: url("../assets/agents/antigravity.svg"); }
.runtime-badge:nth-child(8) { --runtime-mark: url("../assets/agents/opencode.svg"); }
.runtime-badge:nth-child(9) { --runtime-mark: url("../assets/agents/pi.svg"); }
.runtime-badge:nth-child(10) { --runtime-mark: url("../assets/agents/hermes.svg"); }
.runtime-badge:nth-child(11) { --runtime-mark: url("../assets/agents/openclaw.svg"); }
.runtime-badge:nth-child(12) { --runtime-mark: url("../assets/agents/workbuddy.svg"); }
.runtime-badge:nth-child(13) { --runtime-mark: url("../assets/agents/qoder.svg"); }
.runtime-badge:nth-child(14) { --runtime-mark: url("../assets/agents/trae.svg"); }
.runtime-badge:not(.runtime-badge--ready) i::before { opacity: .45; }
.runtime-badge--ready { border-color: var(--amber); color: var(--amber); background: rgba(201,123,67,.06); }
.runtime-badge--ready i { border-color: rgba(201,123,67,.42); color: var(--ink); background: var(--paper-warm); }

.agent-builder { overflow: hidden; background: var(--paper); }
.builder-layout { display: grid; grid-template-columns: minmax(0, .72fr) minmax(600px, 1.28fr); gap: 64px; align-items: center; }
html[lang="en"] .builder-layout { grid-template-columns: minmax(0, .82fr) minmax(600px, 1.18fr); gap: 48px; }
.builder-layout > *, .builder-card > *, .collab-shell > * { min-width: 0; }
.builder-copy .h2 { max-width: 13ch; }
html[lang="en"] .builder-copy .h2 { max-width: 19ch; font-size: clamp(1.8rem, 2.65vw, 2.3rem); line-height: 1.1; }
.builder-notes { display: grid; gap: 0; margin-top: 36px; border-top: 1px solid var(--line); }
.builder-notes > div { display: grid; grid-template-columns: 34px 1fr; gap: 12px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.builder-notes span { padding-top: 3px; color: var(--amber); font: 500 10px/1 var(--font-mono); letter-spacing: .14em; }
.builder-notes p { color: var(--ink-soft); font: 15px/1.55 var(--font-serif); }
.builder-notes strong { display: block; margin-bottom: 2px; color: var(--ink); font: 700 14px/1.4 var(--font-ui); }

.agent-onboarding { position: relative; overflow: hidden; border: 1px solid var(--line-strong); border-radius: 28px; background: var(--paper-2); box-shadow: var(--shadow-lift); }
.agent-onboarding::before { content: ''; position: absolute; inset: 0; background: radial-gradient(circle at 16% 10%, rgba(227,179,73,.18), transparent 24%), radial-gradient(circle at 90% 82%, rgba(143,168,134,.22), transparent 30%); pointer-events: none; }
.builder-windowbar { position: relative; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; min-height: 48px; padding: 0 18px; border-bottom: 1px solid var(--line); background: rgba(246,239,221,.74); font-size: 13px; font-weight: 700; }
.window-dots { display: flex; gap: 6px; }
.window-dots i { width: 8px; height: 8px; border-radius: 50%; background: var(--rose); }
.window-dots i:nth-child(2) { background: var(--butter); }
.window-dots i:nth-child(3) { background: var(--sage); }
.builder-window-status { justify-self: end; color: var(--ink-faint); font: 500 9px/1 var(--font-mono); letter-spacing: .08em; text-transform: uppercase; }
.builder-profile-nav { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); border-bottom: 1px solid var(--line); background: rgba(246,239,221,.68); }
.builder-profile-nav button { position: relative; padding: 10px 6px; border: 0; color: var(--ink-faint); background: transparent; font-size: 10px; font-weight: 700; transition: .2s ease; }
.builder-profile-nav button::after { content: ''; position: absolute; right: 18%; bottom: -1px; left: 18%; height: 2px; border-radius: 2px; background: transparent; }
.builder-profile-nav button[aria-selected="true"] { color: var(--ink); background: rgba(143,168,134,.08); }
.builder-profile-nav button[aria-selected="true"]::after { background: var(--amber); }
.builder-card { position: relative; display: grid; grid-template-columns: 178px minmax(0, 1fr); min-height: 452px; }
.builder-preview { display: flex; flex-direction: column; align-items: center; padding: 48px 18px 24px; border-right: 1px solid var(--line); background: rgba(246,239,221,.48); }
.builder-portrait { position: relative; display: grid; place-items: end center; width: 132px; height: 154px; overflow: hidden; border: 1px solid var(--line); border-radius: 66px 66px 22px 22px; background: linear-gradient(180deg, rgba(143,168,134,.22), rgba(246,239,221,.9)); }
.builder-portrait::after { content: ''; position: absolute; bottom: 12px; width: 92px; height: 10px; border-radius: 50%; background: rgba(42,38,32,.08); }
.builder-portrait svg { position: relative; z-index: 1; width: 110px; height: 130px; overflow: visible; transform-origin: 50% 100%; transition: transform .3s ease; }
.agent-onboarding[data-step="look"] .builder-portrait svg { animation: builder-pop .8s cubic-bezier(.2,.8,.2,1); }
@keyframes builder-pop { 0% { opacity: .3; transform: translateY(18px) rotate(-6deg); } 60% { transform: translateY(-4px) rotate(3deg); } }
.builder-nameplate { display: grid; gap: 2px; margin-top: 18px; text-align: center; }
.builder-nameplate strong { font-size: 17px; }
.builder-nameplate span { color: var(--ink-faint); font: 500 9px/1.4 var(--font-mono); letter-spacing: .12em; text-transform: uppercase; }
.builder-saved { display: flex; align-items: center; gap: 6px; margin-top: auto; padding: 7px 10px; border: 1px solid rgba(143,168,134,.35); border-radius: 999px; color: var(--sage-ink); background: rgba(143,168,134,.14); font-size: 10px; font-weight: 700; opacity: 0; transform: translateY(8px); transition: .3s ease; }
.builder-saved span { display: grid; place-items: center; width: 15px; height: 15px; border-radius: 50%; background: var(--sage); color: var(--paper-warm); }
.agent-onboarding[data-step="runtime"] .builder-saved { opacity: 1; transform: none; transition-delay: 1.1s; }

.builder-form { display: grid; align-content: start; gap: 10px; padding: 22px; }
.builder-field { position: relative; padding: 11px 12px; border: 1px solid transparent; border-radius: 12px; background: rgba(246,239,221,.42); opacity: .5; transition: opacity .3s ease, border-color .3s ease, background .3s ease, transform .3s ease; }
.builder-field.is-active { opacity: 1; border-color: rgba(201,123,67,.55); background: var(--paper-warm); box-shadow: 0 4px 16px rgba(42,38,32,.08); transform: translateX(-4px); }
.builder-field.is-complete { opacity: .82; }
.builder-field label, .builder-field-head > span { display: block; margin-bottom: 6px; color: var(--ink-faint); font: 500 8px/1 var(--font-mono); letter-spacing: .14em; text-transform: uppercase; }
.builder-field-head { display: flex; align-items: center; justify-content: space-between; }
.builder-field-head b { color: var(--amber); font-size: 9px; font-weight: 700; }
.builder-look-controls { display: grid; grid-template-columns: 23px 1fr 23px; align-items: center; gap: 6px; }
.builder-look-controls button { width: 23px; height: 23px; padding: 0; border: 1px solid var(--line); border-radius: 7px; color: var(--ink-soft); background: var(--paper); }
.builder-look-controls span { text-align: center; font-size: 11px; font-weight: 700; }
.builder-swatches { display: flex; justify-content: center; gap: 7px; margin-top: 8px; }
.builder-swatches i { width: 13px; height: 13px; border: 2px solid var(--paper-warm); border-radius: 50%; background: #8fa886; box-shadow: 0 0 0 1px var(--line); }
.builder-swatches i:nth-child(2) { background: #c97b43; }
.builder-swatches i:nth-child(3) { background: #e3b349; }
.builder-swatches i:nth-child(4) { background: #d8a89b; }
.builder-swatches i:nth-child(5) { background: #7e8ca0; }
.builder-swatches i:nth-child(6) { background: #3e4458; }
.builder-input { min-height: 28px; padding: 6px 9px; border: 1px solid var(--line); border-radius: 8px; background: var(--paper); color: var(--ink-soft); font-size: 10.5px; }
.builder-input i { display: inline-block; width: 1px; height: 12px; margin-left: 2px; vertical-align: -2px; background: var(--amber); animation: builder-caret .75s steps(1) infinite; }
@keyframes builder-caret { 50% { opacity: 0; } }
.builder-persona { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; }
.builder-persona label { grid-column: 1 / -1; margin: 0; }
.builder-soul-result { position: relative; min-height: 54px; padding: 8px 10px; overflow: hidden; border: 1px solid var(--line); border-radius: 8px; background: var(--paper); }
.builder-soul-result p { color: var(--ink-soft); font: 9px/1.48 var(--font-serif); opacity: 0; transform: translateY(5px); transition: .35s ease; }
.builder-soul.is-generated .builder-soul-result p { opacity: 1; transform: none; }
.builder-soul-loader { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; gap: 5px; opacity: 0; }
.builder-soul.is-generating .builder-soul-loader { opacity: 1; }
.builder-soul-loader i { width: 5px; height: 5px; border-radius: 50%; background: var(--amber); animation: soul-dot .9s ease-in-out infinite; }
.builder-soul-loader i:nth-child(2) { animation-delay: .15s; }
.builder-soul-loader i:nth-child(3) { animation-delay: .3s; }
@keyframes soul-dot { 0%,100% { opacity: .28; transform: translateY(0); } 50% { opacity: 1; transform: translateY(-4px); } }
.builder-runtimes { display: grid; grid-template-columns: repeat(4, 1fr); gap: 5px; }
.builder-runtimes button { min-width: 0; padding: 7px 5px; border: 1px solid var(--line); border-radius: 8px; color: var(--ink); background: var(--paper); text-align: left; transition: .3s ease; }
.builder-runtimes strong, .builder-runtimes span { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.builder-runtimes strong { font-size: 8.5px; }
.builder-runtimes span { margin-top: 2px; color: var(--ink-faint); font-size: 7.5px; }
.builder-runtimes button.is-selected { border-color: var(--amber); background: rgba(201,123,67,.11); box-shadow: inset 0 0 0 1px rgba(201,123,67,.25); transform: translateY(-2px); }
.builder-progress { position: relative; display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--line); background: rgba(246,239,221,.72); }
.builder-progress button { position: relative; z-index: 1; display: flex; justify-content: center; gap: 7px; padding: 14px 6px; border: 0; color: var(--ink-faint); background: transparent; font: 600 10px/1 var(--font-ui); transition: .25s ease; }
.builder-progress button::before { content: ''; position: absolute; top: -1px; left: 12%; right: 12%; height: 2px; background: transparent; }
.builder-progress button.is-active { color: var(--ink); }
.builder-progress button.is-active::before { background: var(--amber); }
.builder-progress button.is-complete { color: var(--sage-ink); }
.builder-progress span { font: 500 8px/1 var(--font-mono); }

.collaboration { overflow: hidden; background: var(--paper-2); }
.collab-heading { display: grid; grid-template-columns: 1fr .78fr; gap: 56px; align-items: end; }
.collab-heading .section-lead { margin: 0; }
.usecase-block { margin-top: 64px; }
.usecase-intro { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(320px, .72fr); gap: 64px; align-items: end; }
.usecase-intro h3 { max-width: 19ch; margin-top: 14px; font-size: clamp(26px, 3.6vw, 40px); line-height: 1.12; letter-spacing: var(--track-tighter); text-wrap: balance; }
.usecase-intro p { max-width: 54ch; color: var(--ink-soft); font: clamp(16px, 1.6vw, 19px)/1.65 var(--font-serif); }
.usecase-showcase { margin-top: 34px; overflow: hidden; border: 1px solid var(--line-strong); border-radius: var(--r-xl); background: var(--paper-warm); box-shadow: var(--shadow-lift); }
.usecase-toolbar { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: stretch; border-bottom: 1px solid var(--line); background: rgba(242,234,213,.82); }
.usecase-rail { display: flex; gap: 6px; min-width: 0; overflow-x: auto; padding: 10px; scroll-padding-inline: 10px; scroll-snap-type: x proximity; scrollbar-width: none; }
.usecase-rail::-webkit-scrollbar { display: none; }
.usecase-rail button { display: grid; grid-template-columns: 22px minmax(0, 1fr); flex: 0 0 auto; width: 174px; min-height: 52px; gap: 8px; align-items: center; padding: 9px 12px; border: 1px solid transparent; border-radius: 13px; color: var(--ink-soft); background: transparent; scroll-snap-align: center; text-align: left; transition: color .22s cubic-bezier(.25,1,.5,1), background .22s cubic-bezier(.25,1,.5,1), transform .22s cubic-bezier(.25,1,.5,1); }
.usecase-rail button:hover { color: var(--ink); background: rgba(246,239,221,.88); }
.usecase-rail button[aria-selected="true"] { color: var(--paper-warm); background: var(--sage-ink); }
.usecase-rail button:focus-visible, .usecase-controls button:focus-visible { outline: 2px solid var(--amber); outline-offset: -2px; }
.usecase-rail button span { color: var(--amber); font: 500 9px/1 var(--font-mono); letter-spacing: .12em; }
.usecase-rail button strong { font-size: 13px; line-height: 1.25; text-wrap: balance; }
.usecase-controls { display: flex; align-items: center; gap: 6px; padding: 10px 12px 10px 8px; border-left: 1px solid var(--line); }
.usecase-controls button { display: grid; place-items: center; width: 38px; height: 38px; border: 1px solid var(--line-strong); border-radius: 50%; color: var(--sage-ink); background: var(--paper-warm); font-size: 15px; transition: transform .18s cubic-bezier(.25,1,.5,1), background .18s cubic-bezier(.25,1,.5,1); }
.usecase-controls button:hover { transform: translateY(-2px); background: var(--paper); }
.usecase-stage { display: grid; grid-template-columns: minmax(310px, .78fr) minmax(0, 1.22fr); min-height: 480px; }
.usecase-stage > * { transition: opacity .18s ease, transform .3s cubic-bezier(.25,1,.5,1); }
.usecase-stage.is-switching > * { opacity: 0; transform: translateY(8px); }
.usecase-copy { display: flex; flex-direction: column; padding: clamp(30px, 4vw, 48px); color: var(--paper-warm); background: var(--sage-ink); }
.usecase-copy > span { color: var(--butter); font: 500 9px/1.4 var(--font-mono); letter-spacing: .13em; text-transform: uppercase; }
.usecase-copy h3 { max-width: 17ch; margin-top: 18px; font-size: clamp(25px, 3vw, 36px); line-height: 1.08; letter-spacing: var(--track-tighter); text-wrap: balance; }
.usecase-copy > p { max-width: 42ch; margin-top: 18px; color: rgba(246,239,221,.72); font: 16px/1.65 var(--font-serif); }
.usecase-outcome { margin-top: auto; padding-top: 30px; border-top: 1px solid rgba(246,239,221,.16); }
.usecase-outcome > span { color: rgba(246,239,221,.46); font: 500 8px/1 var(--font-mono); letter-spacing: .16em; text-transform: uppercase; }
.usecase-outcome strong { display: block; max-width: 24ch; margin-top: 9px; font-size: 15px; line-height: 1.45; }
.usecase-outcome ul { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; }
.usecase-outcome li { padding: 5px 9px; border: 1px solid rgba(246,239,221,.18); border-radius: 999px; color: rgba(246,239,221,.7); font-size: 10px; line-height: 1.2; }
.usecase-scene { position: relative; display: flex; flex-direction: column; min-width: 0; height: 560px; padding: 28px 30px 0; overflow: hidden; background: radial-gradient(circle at 85% 10%, rgba(227,179,73,.12), transparent 28%), linear-gradient(rgba(42,38,32,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(42,38,32,.035) 1px, transparent 1px); background-size: auto, 28px 28px, 28px 28px; }
.usecase-scene::after { content: ''; position: absolute; right: -62px; bottom: -82px; width: 210px; height: 210px; border: 1px solid rgba(143,168,134,.24); border-radius: 50%; box-shadow: 0 0 0 30px rgba(143,168,134,.05), 0 0 0 60px rgba(143,168,134,.035); pointer-events: none; }
.usecase-scene-head { position: relative; z-index: 2; display: flex; justify-content: space-between; gap: 24px; align-items: flex-start; }
.usecase-scene-head > div:first-child span { display: block; color: var(--amber); font: 500 8px/1 var(--font-mono); letter-spacing: .15em; }
.usecase-scene-head strong { display: block; margin-top: 7px; font-size: 14px; line-height: 1.3; }
.usecase-participant-key { display: flex; gap: 14px; color: var(--ink-faint); font-size: 9px; }
.usecase-participant-key span { display: inline-flex; align-items: center; gap: 5px; }
.usecase-participant-key span::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--sage-ink); }
.usecase-participant-key span + span::before { background: var(--amber); }
.usecase-chat-scroll { position: relative; z-index: 2; flex: 1; min-height: 0; margin-top: 20px; padding: 0 9px 64px 0; overflow-y: auto; overscroll-behavior: contain; scrollbar-color: var(--sage) transparent; scrollbar-width: thin; }
.usecase-chat-scroll:focus-visible { outline: 2px solid var(--amber); outline-offset: -3px; }
.usecase-trigger-rule { margin-bottom: 10px; padding: 8px 10px; border: 1px solid rgba(201,123,67,.24); border-radius: 10px; color: var(--sage-ink); background: rgba(246,239,221,.82); font-size: 10px; font-weight: 700; line-height: 1.4; }
.usecase-roster { display: flex; flex-wrap: wrap; gap: 7px; }
.usecase-roster-item { display: inline-flex; align-items: center; gap: 6px; padding: 4px 9px 4px 4px; border: 1px solid var(--line); border-radius: 999px; color: var(--ink-soft); background: rgba(246,239,221,.86); box-shadow: 0 2px 8px rgba(42,38,32,.04); font-size: 9px; font-weight: 700; }
.usecase-roster-item i { display: grid; place-items: center; width: 20px; height: 20px; border-radius: 50%; color: var(--paper-warm); background: var(--sage-ink); font: 500 9px/1 var(--font-serif); font-style: normal; }
.usecase-roster-item.is-agent { border-color: rgba(201,123,67,.24); color: var(--sage-ink); }
.usecase-roster-item.is-agent i { background: var(--amber); }
.usecase-chat-feed { display: flex; flex-direction: column; gap: 12px; margin-top: 20px; }
.usecase-message { width: min(84%, 410px); padding: 11px 13px 12px; border: 1px solid var(--line); border-radius: 4px 15px 15px; background: var(--paper-warm); box-shadow: var(--shadow-soft); animation: usecase-message-in .42s cubic-bezier(.25,1,.5,1) both; animation-delay: calc(var(--message-order) * 55ms); }
.usecase-message.is-ai, .usecase-message.is-handoff, .usecase-message.is-final { align-self: flex-start; border-color: rgba(61,74,54,.72); border-radius: 4px 15px 15px; color: var(--paper-warm); background: var(--sage-ink); }
.usecase-message.is-handoff { border-color: rgba(227,179,73,.48); background: color-mix(in srgb, var(--sage-ink) 88%, var(--amber) 12%); }
.usecase-message.is-final, .usecase-message.has-artifact { width: min(94%, 470px); border-color: rgba(227,179,73,.62); box-shadow: 0 9px 24px rgba(42,38,32,.14); }
.usecase-message-meta { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.usecase-message-meta span { color: var(--ink-faint); font: 500 8px/1 var(--font-mono); letter-spacing: .08em; }
.usecase-message-meta i { color: var(--ink-faint); font: 600 7px/1 var(--font-ui); font-style: normal; letter-spacing: .06em; text-transform: uppercase; }
.usecase-message.is-ai .usecase-message-meta span, .usecase-message.is-handoff .usecase-message-meta span, .usecase-message.is-final .usecase-message-meta span { color: var(--butter); }
.usecase-message.is-ai .usecase-message-meta i, .usecase-message.is-handoff .usecase-message-meta i, .usecase-message.is-final .usecase-message-meta i { color: rgba(246,239,221,.54); }
.usecase-message > p { margin-top: 7px; color: var(--ink); font-size: 12px; line-height: 1.55; }
.usecase-message.is-ai p, .usecase-message.is-handoff p, .usecase-message.is-final p { color: rgba(246,239,221,.9); }
.usecase-mention { padding: 1px 3px; border-radius: 4px; color: #8a4f25; background: rgba(227,179,73,.2); font-weight: 800; }
.usecase-message.is-ai .usecase-mention, .usecase-message.is-handoff .usecase-mention, .usecase-message.is-final .usecase-mention { color: var(--butter); background: rgba(227,179,73,.14); }
.usecase-message-quote { margin-top: 8px; padding: 8px 9px; overflow: hidden; border: 1px solid rgba(42,38,32,.11); border-radius: 8px; background: rgba(42,38,32,.035); }
.usecase-message-quote span { display: block; color: var(--ink-soft); font-size: 9px; font-weight: 700; line-height: 1.2; }
.usecase-message-quote p { margin-top: 3px; overflow: hidden; color: var(--ink-faint); font-size: 10px; line-height: 1.35; text-overflow: ellipsis; white-space: nowrap; }
.usecase-message.is-ai .usecase-message-quote, .usecase-message.is-handoff .usecase-message-quote, .usecase-message.is-final .usecase-message-quote { border-color: rgba(246,239,221,.13); background: rgba(246,239,221,.055); }
.usecase-message.is-ai .usecase-message-quote span, .usecase-message.is-handoff .usecase-message-quote span, .usecase-message.is-final .usecase-message-quote span { color: var(--butter); }
.usecase-message.is-ai .usecase-message-quote p, .usecase-message.is-handoff .usecase-message-quote p, .usecase-message.is-final .usecase-message-quote p { color: rgba(246,239,221,.58); }
.usecase-context-chip { display: inline-flex; margin-top: 8px; padding: 4px 7px; border: 1px solid rgba(227,179,73,.28); border-radius: 999px; color: var(--butter); background: rgba(227,179,73,.08); font: 600 9px/1.2 var(--font-ui); }
.usecase-artifact { position: relative; display: grid; grid-template-columns: 40px minmax(0, 1fr) auto; gap: 10px; align-items: center; min-height: 58px; margin-top: 9px; padding: 9px 10px; overflow: hidden; border: 1px solid rgba(42,38,32,.12); border-radius: 10px; color: var(--ink); background: var(--paper-warm); box-shadow: 0 4px 12px rgba(42,38,32,.08); }
.usecase-artifact-icon { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 9px; color: var(--paper-warm); background: var(--amber); font: 700 8px/1 var(--font-mono); }
.usecase-artifact.is-doc .usecase-artifact-icon, .usecase-artifact.is-sheet .usecase-artifact-icon { background: #3370ff; }
.usecase-artifact.is-pdf .usecase-artifact-icon { background: #e6534d; }
.usecase-artifact.is-html .usecase-artifact-icon { background: #4f6fe8; font-size: 11px; }
.usecase-artifact.is-ppt .usecase-artifact-icon { background: #c86542; }
.usecase-artifact.is-image .usecase-artifact-icon { background: var(--sage); }
.usecase-artifact strong { display: block; overflow: hidden; font-size: 11px; line-height: 1.3; text-overflow: ellipsis; white-space: nowrap; }
.usecase-artifact small { display: block; margin-top: 4px; color: var(--ink-faint); font-size: 9px; line-height: 1.25; }
.usecase-artifact > i { color: #3370ff; font-size: 9px; font-style: normal; font-weight: 700; white-space: nowrap; }
.usecase-artifact-preview { grid-column: 1 / -1; height: 56px; margin: 0 -1px -1px; border-radius: 7px; background: radial-gradient(circle at 74% 25%, rgba(227,179,73,.85) 0 8px, transparent 9px), linear-gradient(145deg, transparent 48%, rgba(61,74,54,.9) 49% 62%, transparent 63%), linear-gradient(35deg, rgba(143,168,134,.9) 0 48%, transparent 49%), var(--paper-2); }
.usecase-scroll-cue { position: absolute; z-index: 4; right: 30px; bottom: 14px; padding: 8px 12px; border: 1px solid rgba(201,123,67,.32); border-radius: 999px; color: var(--sage-ink); background: rgba(246,239,221,.96); box-shadow: var(--shadow-soft); font: 700 9px/1 var(--font-ui); pointer-events: none; transition: opacity .2s ease, transform .2s ease; }
.usecase-scroll-cue.is-hidden { opacity: 0; transform: translateY(6px); }
@keyframes usecase-message-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.usecase-progress { height: 3px; background: rgba(42,38,32,.06); }
.usecase-progress span { display: block; width: 100%; height: 100%; background: var(--amber); transform: scaleX(0); transform-origin: left; }
.usecase-progress span.is-running { animation: usecase-progress 6.8s linear forwards; }
@keyframes usecase-progress { to { transform: scaleX(1); } }
.collab-methods-heading { display: grid; grid-template-columns: 190px minmax(0, 1fr); gap: 36px; align-items: baseline; margin-top: 68px; padding-top: 30px; border-top: 1px solid var(--line-strong); }
.collab-methods-heading h3 { max-width: 28ch; font-size: clamp(22px, 3vw, 32px); line-height: 1.2; letter-spacing: var(--track-tighter); text-wrap: balance; }
.collab-shell { display: grid; grid-template-columns: 310px 1fr; margin-top: 54px; overflow: hidden; border: 1px solid var(--line-strong); border-radius: var(--r-xl); background: var(--paper-warm); box-shadow: var(--shadow-lift); }
.collab-mode-list { padding: 16px; border-right: 1px solid var(--line); background: rgba(242,234,213,.78); }
.collab-mode-list button { position: relative; display: grid; grid-template-columns: 24px 1fr; width: 100%; gap: 2px 10px; padding: 18px 14px; border: 0; border-radius: 14px; color: var(--ink); background: transparent; text-align: left; transition: .25s ease; }
.collab-mode-list button + button { margin-top: 2px; }
.collab-mode-list button:hover { background: rgba(246,239,221,.8); }
.collab-mode-list button[aria-selected="true"] { background: var(--paper-warm); box-shadow: var(--shadow-soft); }
.collab-mode-list button[aria-selected="true"]::after { content: ''; position: absolute; top: 18px; bottom: 18px; left: 0; width: 3px; border-radius: 3px; background: var(--amber); }
.collab-mode-list span { grid-row: 1 / 3; color: var(--amber); font: 500 9px/1.5 var(--font-mono); letter-spacing: .12em; }
.collab-mode-list strong { font-size: 14px; }
.collab-mode-list small { color: var(--ink-soft); font: 12px/1.5 var(--font-serif); }
.collab-canvas { position: relative; min-height: 452px; overflow: hidden; background: radial-gradient(circle at 50% 50%, rgba(143,168,134,.1), transparent 46%), linear-gradient(rgba(42,38,32,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(42,38,32,.035) 1px, transparent 1px); background-size: auto, 28px 28px, 28px 28px; }
.collab-context { position: absolute; top: 18px; left: 26px; right: 26px; z-index: 5; display: grid; grid-template-columns: 1fr auto 1fr; align-items: start; gap: 14px; }
.collab-context > div:last-child { text-align: right; }
.collab-context span { display: block; color: var(--ink); font: 700 10px/1.2 var(--font-ui); }
.collab-context small { display: block; margin-top: 4px; color: var(--ink-faint); font: 500 7px/1.2 var(--font-mono); letter-spacing: .08em; text-transform: uppercase; }
.collab-context i { color: var(--amber); font: 500 7px/1.2 var(--font-mono); font-style: normal; letter-spacing: .12em; text-transform: uppercase; }
.collab-lines { position: absolute; inset: 34px 0 28px; width: 100%; height: calc(100% - 62px); overflow: visible; }
.collab-lines path { fill: none; stroke: rgba(143,168,134,.24); stroke-width: 2; stroke-dasharray: 4 7; opacity: 0; transition: opacity .35s ease, stroke .35s ease; }
.collab-lines path.is-on { opacity: 1; stroke: var(--sage); animation: collab-flow 1.1s linear infinite; }
@keyframes collab-flow { to { stroke-dashoffset: -22; } }
.collab-node { position: absolute; z-index: 3; display: grid; place-items: center; width: 76px; min-height: 76px; padding: 8px; border: 1px solid var(--line); border-radius: 22px; background: var(--paper-warm); box-shadow: var(--shadow-soft); opacity: .16; transform: scale(.9); transition: opacity .35s ease, transform .35s ease, border-color .35s ease; }
.collab-node.is-on { opacity: 1; transform: scale(1); border-color: rgba(143,168,134,.6); }
.collab-node strong { width: 100%; font-size: 10px; line-height: 1.1; text-align: center; text-wrap: balance; }
.collab-node small { width: 100%; color: var(--ink-faint); font: 8px/1 var(--font-mono); text-align: center; }
.collab-node.human { border-radius: 50%; color: var(--paper-warm); background: var(--sage-ink); }
.collab-node.human span { display: grid; place-items: center; width: 28px; height: 28px; margin-bottom: 3px; border-radius: 50%; background: rgba(242,234,213,.18); font-family: var(--font-serif); }
.collab-node.human strong { color: rgba(242,234,213,.68); }
.collab-node.agent svg { width: 40px; height: 40px; }
.human-a { left: 8%; top: 42%; }
.human-b { left: 8%; top: 13%; }
.human-c { left: 8%; bottom: 10%; }
.agent-a { left: 44%; top: 10%; }
.agent-b { left: 53%; top: 42%; }
.agent-c { left: 44%; bottom: 8%; }
.collab-message { position: absolute; z-index: 6; right: 4%; top: 33%; width: 190px; padding: 11px 13px; border: 1px solid var(--line); border-radius: 15px 15px 4px 15px; background: var(--paper-warm); box-shadow: var(--shadow-lift); opacity: 0; transform: translateY(12px); transition: .35s ease .15s; }
.collab-message.is-on { opacity: 1; transform: none; }
.collab-message span { color: var(--amber); font: 500 8px/1 var(--font-mono); letter-spacing: .1em; text-transform: uppercase; }
.collab-message p { margin-top: 5px; font-size: 11px; line-height: 1.45; }
.collab-handoff { position: absolute; z-index: 7; right: 4%; bottom: 12%; display: flex; align-items: center; gap: 5px; padding: 7px 9px; border: 1px solid rgba(143,168,134,.35); border-radius: 999px; color: var(--sage-ink); background: var(--paper-warm); box-shadow: var(--shadow-soft); font-size: 8px; font-weight: 700; opacity: 0; transform: translateY(8px); transition: .35s ease .3s; }
.collab-handoff.is-on { opacity: 1; transform: none; }
.collab-handoff i { color: var(--amber); font-style: normal; }
.collab-caption { grid-column: 2; display: flex; align-items: center; gap: 10px; min-height: 50px; padding: 0 24px; border-top: 1px solid var(--line); color: var(--ink-soft); background: rgba(246,239,221,.86); font: 13px/1.5 var(--font-serif); }
.collab-caption-dot { flex: none; width: 6px; height: 6px; border-radius: 50%; background: var(--sage); animation: pulse-dot 2s ease-in-out infinite; }

.comparison { overflow: hidden; background: var(--paper-2); }
.comparison-heading { display: grid; grid-template-columns: minmax(0, 1fr) minmax(360px, .72fr); gap: 64px; align-items: end; }
.comparison-heading .h2 { max-width: 15ch; }
html[lang="en"] .comparison-heading .h2 { max-width: 18ch; font-size: clamp(2rem, 3.25vw, 2.6rem); }
.comparison-heading .section-lead { margin: 0; }
.comparison-principles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: 48px; border-top: 1px solid var(--line-strong); border-bottom: 1px solid var(--line-strong); }
.comparison-principle { position: relative; min-height: 190px; padding: 28px 30px 30px; }
.comparison-principle + .comparison-principle { border-left: 1px solid var(--line-strong); }
.comparison-principle span { color: var(--amber); font: 500 10px/1 var(--font-mono); letter-spacing: .18em; }
.comparison-principle h3 { margin-top: 32px; font-size: 18px; line-height: 1.25; letter-spacing: var(--track-tight); }
.comparison-principle p { margin-top: 8px; color: var(--ink-soft); font: 15px/1.55 var(--font-serif); }
.comparison-shell { width: min(1380px, calc(100% - 48px)); margin: 48px auto 0; overflow: hidden; border: 1px solid var(--line-strong); border-radius: 26px; background: var(--paper-warm); box-shadow: var(--shadow-lift); }
.comparison-scroll { max-width: 100%; overflow-x: auto; overscroll-behavior-inline: contain; scrollbar-color: var(--sage) transparent; scrollbar-width: thin; }
.comparison-scroll:focus-visible { outline: 2px solid var(--amber); outline-offset: -4px; }
.comparison-table { --comparison-text-size: 12px; --comparison-meta-size: 11px; --comparison-name-size: 13px; width: 100%; min-width: 1560px; border-collapse: separate; border-spacing: 0; table-layout: fixed; color: var(--ink-soft); font-size: var(--comparison-text-size); line-height: 1.55; }
.comparison-table th, .comparison-table td { padding: 20px 14px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); text-align: center; vertical-align: middle; }
.comparison-table tr > :last-child { border-right: 0; }
.comparison-table tbody tr:last-child > * { border-bottom: 0; }
.comparison-table thead th { height: 96px; color: var(--ink-soft); background: rgba(242,234,213,.92); vertical-align: middle; }
.comparison-table thead th:first-child, .comparison-table tbody th { width: 154px; }
.comparison-table thead th:not(:first-child) { width: 166px; }
.comparison-product-name { display: block; color: var(--ink-soft); font-size: var(--comparison-name-size); font-weight: 700; line-height: 1.25; letter-spacing: var(--track-tight); }
.comparison-table th small, .comparison-table td small { display: block; margin-top: 5px; color: var(--ink-faint); font: 500 var(--comparison-meta-size)/1.45 var(--font-ui); letter-spacing: 0; }
.comparison-table tbody th { color: var(--ink-soft); background: var(--paper-warm); font-size: var(--comparison-text-size); font-weight: 700; line-height: 1.45; }
.comparison-table tbody td { background: rgba(246,239,221,.58); }
.comparison-table .is-intovibe { position: sticky; left: 0; z-index: 3; color: var(--sage-ink); background: color-mix(in srgb, var(--paper-warm) 84%, var(--sage) 16%); }
.comparison-table thead .is-intovibe { z-index: 4; }
.comparison-table td.is-intovibe strong { display: block; color: var(--sage-ink); font-size: var(--comparison-text-size); line-height: 1.45; }
.comparison-tradeoff { display: block; max-width: 18ch; margin: 10px auto 0; color: #8a4f25; font-size: var(--comparison-meta-size); font-weight: 700; line-height: 1.4; }
html[lang="en"] .comparison-tradeoff { max-width: 20ch; }
.comparison-brand-logo { display: block; width: 126px; max-width: 92%; height: auto; margin: 0 auto; }
.comparison-swipe { display: none; }

@media (max-width: 1040px) {
  .builder-layout, html[lang="en"] .builder-layout { grid-template-columns: minmax(0, 1fr); }
  .builder-copy { max-width: 720px; }
  .collab-shell { grid-template-columns: 260px 1fr; }
  .usecase-intro { grid-template-columns: minmax(0, 1fr); gap: 22px; }
  .usecase-intro p { max-width: 62ch; }
  .usecase-stage { grid-template-columns: minmax(280px, .76fr) minmax(0, 1.24fr); }
  .comparison-heading { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .comparison-heading .section-lead { max-width: 700px; }
  .comparison-principle { padding-inline: 22px; }
}

@media (max-width: 760px) {
  .builder-layout, .collab-heading { grid-template-columns: minmax(0, 1fr); gap: 34px; }
  .builder-card { grid-template-columns: 130px 1fr; }
  .builder-preview { padding-inline: 10px; }
  .builder-persona { grid-template-columns: 1fr; }
  .builder-persona label { grid-column: auto; }
  .builder-runtimes { grid-template-columns: repeat(2, 1fr); }
  .collab-shell { grid-template-columns: minmax(0, 1fr); }
  .usecase-block { margin-top: 52px; }
  .usecase-stage { grid-template-columns: minmax(0, 1fr); }
  .usecase-copy { min-height: 410px; }
  .usecase-scene { height: 520px; }
  .collab-methods-heading { grid-template-columns: minmax(0, 1fr); gap: 12px; margin-top: 52px; }
  .collab-mode-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 4px; border-right: 0; border-bottom: 1px solid var(--line); }
  .collab-mode-list button + button { margin-top: 0; }
  .collab-caption { grid-column: 1; }
  .comparison-principles { grid-template-columns: minmax(0, 1fr); }
  .comparison-principle { min-height: 0; padding: 24px 0; }
  .comparison-principle + .comparison-principle { border-top: 1px solid var(--line-strong); border-left: 0; }
  .comparison-principle h3 { margin-top: 18px; }
}

@media (max-width: 560px) {
  .runtime-roadmap { margin-top: 32px; padding: 18px 14px; }
  .runtime-badge-cloud { gap: 8px; }
  .runtime-badge { min-height: 40px; padding: 5px 13px 5px 6px; font-size: 12px; }
  .runtime-badge i { flex-basis: 28px; width: 28px; height: 28px; }
  .builder-notes > div { padding: 13px 0; }
  .builder-windowbar { grid-template-columns: auto 1fr; gap: 12px; }
  .builder-windowbar > span:nth-child(2) { text-align: center; }
  .builder-window-status { display: none; }
  .builder-card { display: block; }
  .builder-preview { flex-direction: row; justify-content: flex-start; gap: 12px; padding: 14px; border-right: 0; border-bottom: 1px solid var(--line); }
  .builder-portrait { flex: none; width: 72px; height: 82px; border-radius: 36px 36px 14px 14px; }
  .builder-portrait svg { width: 62px; height: 74px; }
  .builder-nameplate { margin: 0; text-align: left; }
  .builder-saved { margin: 0 0 0 auto; }
  .builder-form { padding: 12px; gap: 7px; }
  .builder-field { padding: 9px 10px; }
  .builder-progress button { gap: 0; padding: 12px 2px; font-size: 0; }
  .builder-progress span { font-size: 9px; }
  .usecase-intro h3 { font-size: clamp(25px, 8vw, 34px); }
  .usecase-showcase { margin-top: 26px; border-radius: 22px; }
  .usecase-toolbar { grid-template-columns: minmax(0, 1fr); }
  .usecase-rail { padding: 9px 9px 4px; }
  .usecase-rail button { width: min(68vw, 230px); }
  .usecase-controls { justify-content: flex-end; padding: 5px 10px 9px; border-left: 0; }
  .usecase-controls button { width: 34px; height: 34px; }
  .usecase-copy { min-height: 430px; padding: 28px 22px; }
  .usecase-copy h3 { font-size: clamp(24px, 8.2vw, 32px); }
  .usecase-copy > p { font-size: 15px; }
  .usecase-scene { height: 540px; padding: 24px 16px 0; }
  .usecase-scene-head { display: block; }
  .usecase-participant-key { margin-top: 12px; }
  .usecase-chat-scroll { margin-top: 16px; padding-right: 5px; overscroll-behavior-y: auto; }
  .usecase-message { width: 86%; }
  .usecase-scroll-cue { right: 16px; bottom: 12px; }
  .collab-methods-heading { margin-top: 46px; }
  .collab-mode-list { display: flex; overflow-x: auto; padding: 10px; scroll-snap-type: x mandatory; }
  .collab-mode-list button { flex: 0 0 76%; scroll-snap-align: center; }
  .collab-canvas { min-height: 390px; }
  .collab-context { left: 16px; right: 16px; grid-template-columns: 1fr 1fr; }
  .collab-context i { display: none; }
  .collab-node { width: 62px; min-height: 62px; border-radius: 18px; }
  .collab-node.agent svg { width: 32px; height: 32px; }
  .human-a, .human-b, .human-c { left: 4%; }
  .agent-a, .agent-c { left: 38%; }
  .agent-b { left: 49%; }
  .collab-message { right: 12px; width: min(146px, 42%); }
  .collab-caption { padding: 12px 16px; }
  .comparison-heading .h2, html[lang="en"] .comparison-heading .h2 { max-width: none; font-size: clamp(1.9rem, 9vw, 2.25rem); }
  .comparison-principles { margin-top: 36px; }
  .comparison-shell { width: calc(100% - 36px); }
  .comparison-shell { margin-top: 32px; border-radius: 20px; }
  .comparison-table { min-width: 1340px; font-size: 12px; }
  .comparison-table thead th:first-child, .comparison-table tbody th { width: 132px; }
  .comparison-table thead th:not(:first-child) { width: 151px; }
  .comparison-table th, .comparison-table td { padding: 15px 12px; }
  .comparison-swipe { display: block; padding: 10px 14px; border-top: 1px solid var(--line); color: var(--ink-faint); background: var(--paper); font: 500 9px/1 var(--font-mono); letter-spacing: .08em; text-align: right; text-transform: uppercase; }
}

@media (prefers-reduced-motion: reduce) {
  .agent-onboarding[data-step="look"] .builder-portrait svg, .collab-lines path.is-on, .usecase-message, .usecase-progress span.is-running { animation: none; }
  .usecase-stage > *, .usecase-rail button, .usecase-controls button, .usecase-scroll-cue { transition: none; }
}