/* Modern pass: layers on style.css, same tokens. Wider stage, one rhythm, calls to attention. */
:root { --stage: 1280px; --measure: 62rem; --grad: linear-gradient(100deg, var(--blue), var(--green)); --r: 20px; }
.wrap { width: min(var(--stage), 100%); padding-inline: clamp(18px, 4vw, 40px); }
section.wrap { padding-block: clamp(3rem, 8vw, 6rem); }
section.wrap + section.wrap { border-top: 1px solid color-mix(in srgb, var(--line) 55%, transparent); }
p { max-width: none; }
section.wrap > p, .eyebrow + h2 + p { max-width: var(--measure); }

/* progress + header */
.progress { position: fixed; inset: 0 0 auto 0; height: 3px; z-index: 30; pointer-events: none; }
.progress i { display: block; height: 100%; width: 100%; background: var(--grad); transform: scaleX(var(--p, 0)); transform-origin: left; }
.top-in { padding-block: .85rem; }
.top nav { gap: .35rem; }
.top nav a { padding: .4rem .75rem; border-radius: 999px; transition: color .15s, background .15s; }
.top nav a:not(.gh):hover { background: var(--card); }
.top nav a.on { color: var(--ink); background: var(--card); }
.top nav .gh { margin-left: .4rem; padding: .4rem 1rem; }
.top nav .gh:hover { border-color: var(--blue); }
@media (max-width: 900px) { .top nav a:not(.gh) { display: none; } }

/* hero */
.hero { text-align: center;
  isolation: isolate; }
.hero::before { content: ''; position: absolute; inset: 0; z-index: -1; opacity: .5;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 56px 56px; -webkit-mask-image: radial-gradient(70% 65% at 50% 30%, #000, transparent 75%); mask-image: radial-gradient(70% 65% at 50% 30%, #000, transparent 75%); }
.hero-in { padding-block: clamp(2.5rem, 7vw, 5.5rem) clamp(2.5rem, 6vw, 4rem); display: flex; flex-direction: column; align-items: center; }
.kicker { display: inline-flex; align-items: center; gap: .55rem; margin: 0 0 1.4rem; padding: .35rem .9rem; font-size: .85rem; font-weight: 700; letter-spacing: .02em; color: var(--muted); background: var(--surface); border: 1px solid var(--line); border-radius: 999px; box-shadow: var(--shadow); }
.kicker .dot { width: .55rem; height: .55rem; border-radius: 50%; background: var(--green); }
.hero h1 img { width: min(440px, 70vw); }
.tagline { max-width: none; margin: 1.4rem 0 0; font-size: clamp(2rem, 6.4vw, 5rem); font-weight: 900; line-height: 1.04; letter-spacing: -.04em; display: flex; flex-wrap: wrap; justify-content: center; column-gap: .35em; }
.tagline span { white-space: nowrap; }
.tagline b { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.t-learn b { background: linear-gradient(100deg, var(--green), var(--blue)); -webkit-background-clip: text; background-clip: text; }
.lede { max-width: 40em; margin: 1.3rem auto 0; font-size: clamp(1.15rem, 2.2vw, 1.5rem); }
.lede strong { color: var(--ink); }
.cta { margin: 2rem 0 1.6rem; }
.btn { padding: .85rem 1.7rem; border-radius: 14px; transition: transform .15s, box-shadow .15s, border-color .15s, background .15s; }
.btn:hover { transform: translateY(-2px); }
.btn.ghost { background: transparent; box-shadow: none; }
.btn.primary { box-shadow: none; }
.hero-code { width: min(620px, 100%); margin: 0; text-align: left; }
.hero-code pre { padding: 1.2rem 5.5rem 1.2rem 1.4rem; font-size: .95rem; box-shadow: var(--shadow); }
.hero .fine { margin: .9rem 0 0; max-width: none; }
.fine code { font-size: .85em; }
.proof { list-style: none; padding: 0; margin: clamp(2rem, 5vw, 3.5rem) 0 0; width: 100%; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; box-shadow: var(--shadow); }
.proof li { max-width: none; background: var(--surface); padding: 1.3rem 1.2rem; display: flex; flex-direction: column; gap: .25rem; align-items: center; }
.proof b { font-size: clamp(1.6rem, 3.4vw, 2.2rem); font-weight: 900; letter-spacing: -.03em; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; line-height: 1.1; }
.proof span { font-size: .92rem; color: var(--muted); }

/* section heads: one rhythm */
.eyebrow { display: flex; align-items: center; gap: .7rem; margin: 0 0 .9rem; max-width: none; }
.eyebrow span { font-family: var(--mono); letter-spacing: .04em; padding: .15rem .55rem; border-radius: 6px; color: var(--blue); background: color-mix(in srgb, var(--blue) 12%, transparent); }
section.wrap > h2 { font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 900; letter-spacing: -.035em; margin-bottom: .7rem; }
section.wrap .eyebrow + h2 { margin-top: 0; }
.eyebrow ~ h2 { position: relative; }
.how, .how .sub { text-align: left; }
.sub { font-size: 1.15rem; }

/* diagram on center stage */
.big { max-width: 1100px; margin: 2.2rem auto 0; }
.big img { border-radius: 28px; border: 1px solid var(--line); transition: transform .4s; }
.demo img, .big img { box-shadow: var(--shadow); }

/* install */
.cols { gap: 0 clamp(1.5rem, 4vw, 3.5rem); }
.cols > div { padding: 1.4rem 1.6rem 1.2rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); box-shadow: var(--shadow); }
.cols > div > h3:first-child { margin-top: 0; }
.install > h3 { margin-top: 2.4rem; }

/* cards + table */
.cards { gap: 1.2rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 270px), 1fr)); counter-reset: c; }
.card { position: relative; padding: 1.6rem 1.5rem 1.4rem; border-radius: var(--r); transition: transform .2s, border-color .2s, box-shadow .2s; }
.card::before { counter-increment: c; content: counter(c); display: grid; place-items: center; width: 2rem; height: 2rem; margin-bottom: 1rem; border-radius: 10px; font-weight: 900; color: var(--btn-ink); background: var(--grad); }
.card:hover { transform: translateY(-4px); border-color: var(--blue); }
.card .start code { color: var(--blue); }
table { border-radius: var(--r); }
tbody tr:hover > * { background: color-mix(in srgb, var(--card) 70%, transparent); }

/* call-to-action band */
.band-wrap { padding-block: clamp(2rem, 5vw, 3.5rem) !important; border-top: 0 !important; }
.band { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1.5rem 3rem; padding: clamp(1.8rem, 4vw, 3rem); border-radius: 28px; color: var(--code-ink); background:
  radial-gradient(60% 120% at 0% 0%, color-mix(in srgb, var(--blue) 40%, transparent), transparent 70%),
  radial-gradient(60% 120% at 100% 100%, color-mix(in srgb, var(--green) 35%, transparent), transparent 70%), var(--code-bg); border: 1px solid var(--code-line); box-shadow: var(--shadow); }
.band h2 { color: #fff; margin: 0 0 .4rem; }
.band p { color: #c3d1e4; margin: 0; }
.band .cta { margin: 0; justify-content: flex-start; }
.band .btn:not(.primary) { background: rgba(255,255,255,.08); color: #fff; border-color: rgba(255,255,255,.28); box-shadow: none; }
.band .btn.primary { background: #b7ff83; border-color: #b7ff83; color: #050914; }
.band .btn.primary:hover { background: #d0ffae; }

/* limits: scannable */
.plain { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 380px), 1fr)); gap: 1rem; }
.plain li { max-width: none; margin: 0; padding: 1.2rem 1.4rem; background: var(--surface); border: 1px solid var(--line); border-left: 4px solid var(--amber); border-radius: 14px; }

.foot { margin-top: 2rem; }

/* scroll reveal (only when JS is on; reduced motion = none) */
@media (prefers-reduced-motion: no-preference) {
  .js .rv { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.2,1); transition-delay: var(--d, 0s); }
  .js .rv.in { opacity: 1; transform: none; }
}
@media (max-width: 600px) {
  .tagline span { white-space: normal; }
  .hero-code pre { padding-right: 1rem; padding-top: 2.6rem; }
}
@media (max-width: 700px) {
  .kicker { font-size: .76rem; padding: .3rem .75rem; text-align: left; }
  .code pre { white-space: pre-wrap; word-break: break-word; }
  .big { overflow-x: auto; border-radius: 20px; -webkit-overflow-scrolling: touch; }
  .big img { min-width: 640px; width: 640px; border-radius: 20px; }
  .big::after { content: 'Swipe to see the whole diagram \2192'; display: block; position: sticky; left: 0; padding: .6rem 0 0; font-size: .8rem; color: var(--muted); }
}

/* one frame: every section, the player included, sits in the same column and shares its left edge */
.player { width: 100%; margin-inline: 0; }
.pintro, .sabout { max-width: var(--measure); }
.big { max-width: none; margin-inline: 0; }
.how, .how .sub, .big { text-align: left; }
.split { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 460px), 1fr)); gap: 0 clamp(1.5rem, 4vw, 3.5rem); align-items: start; margin-top: 1.5rem; }
.split > div > :first-child { margin-top: 0; }
.split .code { margin-top: 0; }
.install > .split h3 { margin-top: 0; }
.lead { font-size: clamp(1.25rem, 2.4vw, 1.7rem); line-height: 1.5; letter-spacing: -.01em; }
.lead p { margin: 0; max-width: 56rem; }
/* short labels never break mid-phrase */
.pstab b, .goalgate, .chip, .cat, .vrow .chip, .big-gate, .cons, .esc, .pstep, .stepno, .dlabel, .tlabel { white-space: nowrap; }
.vrow { grid-template-columns: minmax(7rem, max-content) auto minmax(0, 1fr); }
.pfoot > * { white-space: nowrap; }
.pfoot { row-gap: .3rem; }
.tq, .task > div { max-width: none; }
.hero { background: none; }
.code[data-copy] pre { padding-right: 5.5rem; white-space: pre-wrap; overflow-wrap: anywhere; }

/* agents: which agents it runs in, and how far each is verified */
.agents .sub { margin-bottom: 1.4rem; }
.legend { list-style: none; display: flex; flex-wrap: wrap; gap: .6rem 1.6rem; padding: 0; margin: 0 0 1.4rem; color: var(--muted); font-size: .92rem; }
.legend li { display: flex; align-items: center; gap: .55rem; max-width: none; }
.st { display: inline-flex; align-items: center; gap: .3rem; white-space: nowrap; padding: .2rem .65rem; border-radius: 999px; font: 800 .74rem var(--sans); letter-spacing: .04em; text-transform: uppercase; border: 1px solid transparent; }
.st.ok { color: var(--pass); background: var(--pass-bg); border-color: color-mix(in srgb, var(--pass) 35%, transparent); }
.st.wip { color: var(--unsure); background: var(--unsure-bg); border-color: color-mix(in srgb, var(--unsure) 35%, transparent); }
.agent-grid { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 270px), 1fr)); gap: 1rem; }
.agent { max-width: none; display: grid; grid-template-columns: auto minmax(0, 1fr); grid-template-areas: "m n" "m s"; gap: .15rem 1rem; align-items: center; padding: 1.1rem 1.2rem; background: var(--surface); border: 1px solid var(--line); border-radius: 16px; box-shadow: var(--shadow); }
.agent.is-ok { border-color: var(--pass); border-width: 1.5px; }
.agent .mono { grid-area: m; display: grid; place-items: center; width: 2.9rem; height: 2.9rem; border-radius: 12px; font: 800 1rem var(--mono); letter-spacing: -.03em; color: var(--ink); background: var(--card); border: 1px solid var(--line); }
.agent.is-ok .mono { color: var(--btn-ink); background: var(--btn-bg); border-color: var(--btn-bg); }
.agent .an { grid-area: n; display: flex; flex-direction: column; gap: .1rem; min-width: 0; }
.agent .an b { font-size: 1.02rem; line-height: 1.25; }
.agent .an code { align-self: flex-start; font-size: .78rem; color: var(--muted); }
.agent .st { grid-area: s; justify-self: start; margin-top: .45rem; }
.agent.any { border-style: dashed; box-shadow: none; background: transparent; }
.agents-note { margin-top: 1.4rem; max-width: var(--measure); }
.agent.any { grid-column: 1 / -1; grid-template-columns: auto minmax(0, 1fr) auto; grid-template-areas: "m n s"; }
.agent.any .st { margin-top: 0; }
@media (max-width: 560px) { .agent.any { grid-template-columns: auto minmax(0, 1fr); grid-template-areas: "m n" "m s"; } .agent.any .st { margin-top: .45rem; } }

/* compact install tabs + agent chips (replaces the big agents section) */
.agents, .agent-grid, .legend { display: none; }
.itabs { width: min(620px, 100%); text-align: left; }
.itabs [hidden] { display: none !important; }
.tablist { display: inline-flex; gap: .25rem; padding: .25rem; margin-bottom: .7rem; background: var(--card); border: 1px solid var(--line); border-radius: 12px; }
.tablist button { font: 700 .88rem var(--sans); color: var(--muted); background: transparent; border: 0; border-radius: 9px; padding: .45rem 1rem; cursor: pointer; transition: background .15s, color .15s; }
.tablist button:hover { color: var(--ink); }
.tablist button[aria-selected="true"] { background: var(--surface); color: var(--ink); box-shadow: 0 1px 2px rgba(15,27,45,.12); }
.works { margin-top: 1.6rem; width: 100%; }
.chips { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; justify-content: center; gap: .5rem; }
.chips li { max-width: none; display: inline-flex; align-items: center; gap: .5rem; padding: .3rem .8rem .3rem .35rem; font-size: .88rem; font-weight: 600; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: 999px; white-space: nowrap; }
.chips i { font: 800 .7rem var(--mono); font-style: normal; display: grid; place-items: center; width: 1.7rem; height: 1.7rem; border-radius: 50%; color: var(--muted); background: var(--card); }
.chips li.ok { border-color: var(--pass); }
.chips li.ok i { color: var(--btn-ink); background: var(--btn-bg); }
.tick { color: var(--pass); font-weight: 900; }
.chips li.more { padding: .3rem .9rem; color: var(--muted); border-style: dashed; background: transparent; font-weight: 500; }
.works-k { margin: .9rem 0 0; max-width: none; font-size: .85rem; color: var(--muted); }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
@media (max-width: 700px) { .pfoot > * { white-space: normal; } }
.works { width: min(860px, 100%); margin: 1.6rem auto 0; text-align: left; padding: 1rem 1.3rem; background: var(--surface); border: 1px solid var(--line); border-radius: 16px; }
.works dl { margin: 0; display: grid; gap: .55rem; }
.wr { display: grid; grid-template-columns: 7.6rem minmax(0, 1fr); gap: .8rem; align-items: baseline; }
.wr dt { font: 800 .72rem var(--sans); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.wr dd { margin: 0; font-size: .96rem; font-weight: 600; line-height: 1.6; }
.wr .sep { color: var(--line); font-weight: 400; margin-inline: .25rem; }
.wr code { font-size: .8em; font-weight: 500; }
.tick { color: var(--pass); font-weight: 900; }
.works-k { margin: .9rem 0 0; padding-top: .8rem; border-top: 1px solid var(--line); max-width: none; font-size: .84rem; line-height: 1.55; color: var(--muted); }
.works-k code { font-size: .9em; }
@media (max-width: 560px) { .wr { grid-template-columns: 1fr; gap: .1rem; } }

/* hero: one quiet line instead of a card */
.works-line { margin: 1.6rem auto 0; max-width: 46rem; text-align: center; color: var(--muted); font-size: 1.02rem; }
.works-line a { font-weight: 700; white-space: nowrap; }
.st.exp { color: var(--muted); background: var(--card); border-color: var(--line); }

/* agent support page */
.pg-h { font-size: clamp(2.2rem, 5.5vw, 3.6rem); font-weight: 900; letter-spacing: -.04em; margin: 0 0 .8rem; }
.agpage { padding-top: clamp(2rem, 5vw, 3.5rem); }
.legend2 { list-style: none; display: flex; flex-wrap: wrap; gap: .6rem 1.8rem; padding: 0; margin: 1.4rem 0 .6rem; color: var(--muted); font-size: .92rem; }
.legend2 li { max-width: none; display: flex; align-items: center; gap: .55rem; }
.ag-h { font-size: 1.3rem; font-weight: 800; letter-spacing: -.02em; margin: 2.2rem 0 .2rem; }
table.ag th[scope=row] { width: 17%; } table.ag td { vertical-align: middle; }
.pend { color: var(--muted); font-size: .9rem; }
section.wrap > h2.ag-h { font-size: 1.35rem; font-weight: 800; letter-spacing: -.02em; margin: 2.4rem 0 .3rem; }
table.ag th, table.ag td { vertical-align: middle; }
table.ag td code { display: inline; width: auto; margin: 0; font-size: .85rem; font-weight: 600; }
.pend { font-size: 1.1rem; }
table.ag { table-layout: fixed; }
table.ag th:nth-child(1) { width: 17%; } table.ag th:nth-child(2) { width: 24%; } table.ag th:nth-child(3) { width: 19%; } table.ag th:nth-child(4) { width: 25%; } table.ag th:nth-child(5) { width: 15%; }
@media (max-width: 720px) { table.ag { table-layout: auto; } table.ag th:nth-child(n) { width: auto; } }

/* pattern playbook */
.lad { list-style: none; margin: 1.6rem 0 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: .6rem; }
.lad li { max-width: none; }
.lad a { display: flex; flex-direction: column; gap: .1rem; padding: .8rem 1rem; text-decoration: none; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: 14px; transition: border-color .15s, transform .15s; }
.lad a:hover { border-color: var(--blue); transform: translateY(-2px); }
.lad b { font-size: 1.5rem; font-weight: 900; letter-spacing: -.03em; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; line-height: 1.1; }
.lad span { font-size: .85rem; color: var(--muted); font-weight: 600; }
.lvl-h { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 0 clamp(1.2rem, 3vw, 2.4rem); align-items: start; margin-bottom: 1.8rem; }
.lvl-x { margin: 0; max-width: none; font-size: clamp(3.4rem, 9vw, 6.5rem); font-weight: 900; letter-spacing: -.06em; line-height: .9; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lvl-h .eyebrow { margin-bottom: .4rem; }
.lvl-h .eyebrow span { color: var(--green); background: color-mix(in srgb, var(--green) 14%, transparent); font-family: var(--sans); font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
section.wrap.lvl > header h2, .lvl-h h2 { font-size: clamp(1.7rem, 4vw, 2.5rem); margin: 0; }
.say { margin: .3rem 0 0; font-size: 1.25rem; font-weight: 700; color: var(--blue); font-style: italic; }
.premise { margin: .8rem 0 0; font-size: 1.12rem; max-width: 52rem; }
.watch { margin: .5rem 0 0; color: var(--muted); max-width: 52rem; }
.cx { display: inline-flex; gap: 3px; margin-left: .2rem; vertical-align: middle; }
.cx i { width: 14px; height: 6px; border-radius: 3px; background: var(--track); }
.cx i.on { background: var(--green); }
.rgrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 330px), 1fr)); gap: 1.1rem; }
.rcp { --bar: var(--blue); display: flex; flex-direction: column; background: var(--surface); border: 1px solid var(--line); border-top: 4px solid var(--bar); border-radius: 16px; padding: 1.1rem 1.2rem 1.2rem; box-shadow: var(--shadow); }
.rcp.mdl { --bar: var(--green); }
.rcp .rv { margin: 0; max-width: none; font: 800 .74rem var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--bar); }
.rcp h3 { margin: .15rem 0 .35rem; font-size: 1.25rem; }
.rcp > p:not(.rv) { margin: 0 0 .8rem; font-size: .96rem; color: var(--muted); max-width: none; }
.rcp pre { margin: auto 0 0; padding: .8rem .95rem; overflow-x: auto; font-size: .8rem; line-height: 1.55; background: var(--code-bg); color: var(--code-ink); border: 1px solid var(--code-line); border-radius: 10px; }
.rcp pre code { background: none; border: 0; padding: 0; font-size: inherit; color: inherit; }
.pbend { padding-block: 1rem 3rem !important; border-top: 0 !important; }
@media (max-width: 560px) { .lvl-h { grid-template-columns: 1fr; } }
.rcp pre { white-space: pre-wrap; overflow-wrap: anywhere; }
.pb-cta { margin-top: 1.2rem; }
.shape .sub strong { color: var(--ink); }
.shape-grid { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 1.4rem 2rem; margin-top: 1.4rem; align-items: start; }
.shape-code { background: var(--surface); border: 1px solid var(--line); border-top: 4px solid var(--green); border-radius: 16px; padding: 1.1rem 1.2rem 1.2rem; box-shadow: var(--shadow); }
.shape-code .rv { margin: 0 0 .6rem; max-width: none; font: 800 .74rem var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--green); }
.shape-code pre { margin: 0; padding: .9rem 1rem; overflow-x: auto; font-size: .82rem; line-height: 1.7; background: var(--code-bg); color: var(--code-ink); border: 1px solid var(--code-line); border-radius: 10px; }
.shape-code pre code { background: none; border: 0; padding: 0; font-size: inherit; color: inherit; }
.shape-list { list-style: none; margin: 0; padding: 0; display: grid; gap: .9rem; }
.shape-list li { max-width: none; padding: .9rem 1rem; background: var(--surface); border: 1px solid var(--line); border-left: 4px solid var(--green); border-radius: 12px; }
.shape-list b { display: block; font: 800 .8rem var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--green); margin-bottom: .2rem; }
.shape-list span { color: var(--muted); font-size: .95rem; }
.shape-list em { color: var(--ink); font-style: normal; font-weight: 600; }
@media (max-width: 900px) { .shape-grid { grid-template-columns: 1fr; } }