/* OnPurpose Academy */

/* Hero: an institutional entrance — arch, ivory, monumental type */
.ac-hero { padding-top: clamp(2rem, 4vw, 3.5rem); background: linear-gradient(180deg, var(--paper) 0%, var(--ivory) 100%); }
.ac-hero__grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--col-gap); row-gap: var(--space-7); align-items: end; }
.ac-hero__grid > * { min-width: 0; }
.ac-hero__copy { grid-column: 1 / span 7; padding-bottom: clamp(0rem, 3vw, 3rem); }
.ac-hero__title { font-size: clamp(3rem, 1.2rem + 6.4vw, 7.6rem); line-height: .95; max-width: 11ch; }
.ac-hero__media { grid-column: 8 / span 5; position: relative; }
.ac-arch { position: relative; aspect-ratio: 4 / 5; overflow: hidden; border-radius: 999px 999px 0 0; background: var(--cream); box-shadow: inset 0 0 0 1px var(--line-on-light); }
.ac-arch img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 30%; }
.ac-arch::after { content: ""; position: absolute; inset: 14px 14px 0; border: 1px solid rgba(166,132,90,.55); border-bottom: 0; border-radius: 999px 999px 0 0; pointer-events: none; }
.ac-hero__motto { margin-top: 1rem; color: var(--gold-ink); letter-spacing: .14em; text-transform: uppercase; font-size: .7rem; text-align: center; }
@media (max-width: 960px) {
  .ac-hero__copy, .ac-hero__media { grid-column: 1 / -1; }
  .ac-hero__media { max-width: 440px; width: 100%; justify-self: center; }
}

/* Promise: steps + ledger */
.ac-promise__steps { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--line-on-dark-strong); }
.ac-step { width: 100%; display: flex; flex-direction: column; align-items: flex-start; gap: .4rem; padding: 1.3rem 1rem 1.4rem 0; border: 0; background: none; color: var(--mist); text-align: left; position: relative; transition: color var(--dur-2); }
.ac-step::before { content: ""; position: absolute; left: 0; right: 1rem; top: -1px; height: 2px; background: var(--gold); transform: scaleX(0); transform-origin: left; transition: transform var(--dur-3) var(--ease-out); }
.ac-step__n { font-family: var(--font-mono); font-size: .75rem; color: var(--gold); }
.ac-step__word { font-family: var(--font-serif); font-size: clamp(1.6rem, 1rem + 2.4vw, 3.1rem); line-height: 1; letter-spacing: -.015em; }
.ac-step[aria-selected="true"] { color: var(--ivory); }
.ac-step[aria-selected="true"]::before { transform: scaleX(1); }
.ac-step.is-past { color: var(--fog); }
@media (hover: hover) { .ac-step:hover { color: var(--ivory); } }
.ac-promise__stage { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(2rem, 5vw, 5rem); margin-top: clamp(2rem, 4vw, 3.5rem); align-items: start; }
.ac-panel .h3 { font-size: var(--fs-h2); }
.ac-panel p { margin-top: 1rem; font-size: var(--fs-lead); line-height: 1.55; color: var(--fog); max-width: 52ch; }
.ac-panel__meta { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.5rem; margin: 2rem 0 0; padding-top: 1.25rem; border-top: 1px solid var(--line-on-dark); }
.ac-panel__meta dt { font-family: var(--font-mono); font-size: var(--fs-micro); letter-spacing: .08em; text-transform: uppercase; color: var(--gold); }
.ac-panel__meta dd { margin: .35rem 0 0; font-weight: 650; }
.ac-ledger { padding: 1.4rem 1.5rem; border: 1px solid var(--line-on-dark); background: linear-gradient(180deg, rgba(246,241,231,.045), rgba(246,241,231,.015)); }
.ac-ledger__head, .ac-ledger__foot { font-size: var(--fs-micro); letter-spacing: .08em; text-transform: uppercase; color: var(--mist); }
.ac-ledger__foot { margin-top: 1rem; }
.ac-ledger__rows { list-style: none; padding: 0; margin: 1rem 0 0; border-top: 1px solid var(--line-on-dark); }
.ac-ledger__rows li { display: grid; grid-template-columns: 2rem minmax(0, 1fr) auto; gap: .75rem; align-items: center; padding: .8rem 0; border-bottom: 1px solid var(--line-on-dark); font-size: var(--fs-small); color: var(--fog); opacity: .32; transition: opacity var(--dur-3) var(--ease-out); }
.ac-ledger__rows li .mono { color: var(--gold); }
.ac-ledger__state { font-family: var(--font-mono); font-size: .66rem; letter-spacing: .06em; text-transform: uppercase; padding: .2rem .5rem; border: 1px solid var(--line-on-dark-strong); border-radius: 999px; }
.ac-ledger__rows li.is-on { opacity: 1; }
.ac-ledger__rows li.is-on .ac-ledger__state { border-color: var(--gold); color: var(--gold-soft); }
.ac-ledger__rows li.is-current { color: var(--ivory); }
@media (max-width: 860px) {
  .ac-promise__steps { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .ac-step { padding-right: .4rem; }
  .ac-step__word { font-size: clamp(.95rem, 3.6vw, 1.6rem); }
  .ac-promise__stage { grid-template-columns: 1fr; }
}

/* Courses */
.ac-courses { border-top: 1px solid var(--line-on-light-strong); }
.ac-course { border-bottom: 1px solid var(--line-on-light); }
.ac-course__head { width: 100%; display: grid; grid-template-columns: 9rem minmax(0, 14rem) minmax(0, 1fr) 2.5rem; gap: 1.5rem; align-items: baseline; padding: 1.75rem 0; border: 0; background: none; text-align: left; color: inherit; }
.ac-course__code { font-family: var(--font-mono); font-size: .9rem; color: var(--gold-ink); letter-spacing: .04em; }
.ac-course__name { font-family: var(--font-serif); font-size: clamp(2rem, 1.4rem + 2vw, 3.25rem); line-height: 1; letter-spacing: -.015em; }
.ac-course__teaser { color: var(--slate); font-size: var(--fs-body); }
.ac-course__plus { position: relative; width: 28px; height: 28px; align-self: center; justify-self: end; }
.ac-course__plus::before, .ac-course__plus::after { content: ""; position: absolute; left: 50%; top: 50%; width: 18px; height: 1.5px; margin: -.75px 0 0 -9px; background: var(--gold-deep); transition: transform var(--dur-2) var(--ease-out); }
.ac-course__plus::after { transform: rotate(90deg); }
.ac-course__head[aria-expanded="true"] .ac-course__plus::after { transform: rotate(0deg); }
@media (hover: hover) { .ac-course__head:hover .ac-course__name { color: var(--gold-ink); } }
.ac-course__body { padding: 0 0 2rem 10.5rem; }
.ac-course__cols { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--col-gap); }
.ac-course__cols p { margin-top: .4rem; font-size: var(--fs-small); color: var(--slate); }
@media (max-width: 900px) {
  .ac-course__head { grid-template-columns: minmax(0, 1fr) 2.5rem; gap: .35rem 1rem; }
  .ac-course__code, .ac-course__name, .ac-course__teaser { grid-column: 1; }
  .ac-course__plus { grid-column: 2; grid-row: 1 / span 3; }
  .ac-course__body { padding-left: 0; }
  .ac-course__cols { grid-template-columns: 1fr; gap: 1rem; }
}
.ac-families { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; margin-top: clamp(3rem, 5vw, 5rem); background: var(--line-on-light); border: 1px solid var(--line-on-light); }
.ac-family { display: flex; flex-direction: column; gap: .7rem; padding: 1.6rem; background: var(--paper); }
.ac-family > .mono { color: var(--gold-ink); font-size: var(--fs-micro); text-transform: uppercase; letter-spacing: .08em; }
.ac-family p:not(.mono) { font-size: var(--fs-small); color: var(--slate); }
.ac-family .link-arrow, .ac-family .tag { margin-top: auto; align-self: flex-start; }
@media (max-width: 1100px) { .ac-families { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .ac-families { grid-template-columns: 1fr; } }
.ac-principles { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--col-gap); list-style: none; padding: 0; margin: clamp(2.5rem, 4vw, 4rem) 0 0; font-size: var(--fs-small); color: var(--slate); }
.ac-principles li { display: grid; gap: .4rem; padding-top: 1rem; border-top: 1px solid var(--gold-deep); }
.ac-principles .mono { color: var(--ink); font-weight: 500; text-transform: uppercase; letter-spacing: .06em; font-size: .7rem; }
@media (max-width: 900px) { .ac-principles { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .ac-principles { grid-template-columns: 1fr; } }

/* Recognition staircase */
.ac-stair { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(2rem, 5vw, 5rem); align-items: end; }
.ac-stair__levels { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); align-items: end; gap: 6px; min-height: 420px; }
.ac-stair__levels li { display: flex; }
.ac-level { width: 100%; display: flex; flex-direction: column; justify-content: space-between; align-items: flex-start; gap: 1rem; padding: 1rem .9rem; border: 1px solid var(--line-on-light-strong); background: var(--ivory); color: var(--ink); text-align: left; font-size: .875rem; font-weight: 650; line-height: 1.3; transition: background-color var(--dur-2), color var(--dur-2), border-color var(--dur-2), transform var(--dur-2) var(--ease-out); }
.ac-stair__levels li:nth-child(1) .ac-level { height: 130px; }
.ac-stair__levels li:nth-child(2) .ac-level { height: 200px; }
.ac-stair__levels li:nth-child(3) .ac-level { height: 270px; }
.ac-stair__levels li:nth-child(4) .ac-level { height: 340px; }
.ac-stair__levels li:nth-child(5) .ac-level { height: 420px; }
.ac-level .mono { font-family: var(--font-serif); font-size: 2rem; line-height: 1; color: var(--gold-ink); }
.ac-level--fellow { background: var(--navy-900); color: var(--ivory); border-color: var(--navy-900); }
.ac-level--fellow .mono { color: var(--gold-soft); }
.ac-level[aria-selected="true"] { background: var(--gold); border-color: var(--gold); color: var(--navy-950); transform: translateY(-6px); }
.ac-level[aria-selected="true"] .mono { color: var(--navy-950); }
@media (hover: hover) { .ac-level:not([aria-selected="true"]):hover { border-color: var(--gold-deep); transform: translateY(-3px); } }
.ac-stair__panel { padding-bottom: .5rem; }
.ac-stair__panel:focus-visible { outline-offset: 8px; }
.ac-stair__kicker { color: var(--gold-ink); letter-spacing: .08em; text-transform: uppercase; font-size: var(--fs-micro); }
.ac-stair__panel .h3 { margin-top: .6rem; font-size: var(--fs-h2); }
.ac-stair__panel p { margin-top: 1rem; color: var(--slate); max-width: 50ch; }
.ac-stair__panel .ac-stair__note { margin-top: 1.25rem; padding-top: 1rem; border-top: 1px solid var(--line-on-light); font-size: var(--fs-small); }
.ac-recog__grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(2rem, 5vw, 5rem); margin-top: clamp(2.5rem, 4vw, 4rem); align-items: start; }
.ac-checks { list-style: none; padding: 0; margin: 1rem 0 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .6rem 1.5rem; }
.ac-checks li { display: flex; gap: .6rem; align-items: center; font-weight: 600; padding: .7rem 0; border-bottom: 1px solid var(--line-on-light); }
.ac-checks li::before { content: ""; width: 9px; height: 9px; border-radius: 50%; border: 1.5px solid var(--gold-deep); flex: none; }
@media (max-width: 900px) {
  .ac-stair, .ac-recog__grid { grid-template-columns: 1fr; }
  .ac-stair__levels { min-height: 0; grid-template-columns: 1fr; gap: 4px; }
  .ac-stair__levels li .ac-level, .ac-stair__levels li:nth-child(n) .ac-level { height: auto; flex-direction: row; align-items: center; gap: 1rem; }
  .ac-stair__levels li:nth-child(1) .ac-level { margin-right: 32%; }
  .ac-stair__levels li:nth-child(2) .ac-level { margin-right: 24%; }
  .ac-stair__levels li:nth-child(3) .ac-level { margin-right: 16%; }
  .ac-stair__levels li:nth-child(4) .ac-level { margin-right: 8%; }
  .ac-level .mono { font-size: 1.4rem; width: 2.2rem; }
  .ac-level[aria-selected="true"] { transform: translateX(6px); }
}
@media (max-width: 520px) {
  .ac-stair__levels li:nth-child(n) .ac-level { margin-right: 0; }
  .ac-checks { grid-template-columns: 1fr; }
}

/* Experience Engine */
.ac-engine__grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(2rem, 5vw, 5rem); align-items: center; }
.ac-equation { display: grid; grid-template-columns: minmax(0, 1fr) 96px minmax(0, 1fr); gap: 1rem; align-items: center; }
.ac-equation ul { list-style: none; padding: 0; margin: 0; display: grid; gap: .5rem; }
.ac-equation li { padding: .8rem 1rem; border: 1px solid var(--line-on-light-strong); background: var(--paper); font-size: var(--fs-small); font-weight: 600; position: relative; }
.ac-equation__in li::after { content: ""; position: absolute; left: 100%; top: 50%; width: 1rem; height: 1px; background: var(--gold-deep); }
.ac-equation__out li { background: var(--navy-900); color: var(--ivory); border-color: var(--navy-900); }
.ac-equation__out li::before { content: ""; position: absolute; right: 100%; top: 50%; width: 1rem; height: 1px; background: var(--gold-deep); }
.ac-equation__core { display: grid; place-items: center; aspect-ratio: 1; border-radius: 50%; border: 1px solid var(--gold-deep); background: var(--paper); }
@media (max-width: 900px) {
  .ac-engine__grid { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .ac-equation { grid-template-columns: 1fr; justify-items: stretch; }
  .ac-equation__core { width: 72px; justify-self: center; }
  .ac-equation li::after, .ac-equation li::before { display: none; }
}

/* Dashboard preview */
.ac-app { border: 1px solid var(--line-on-dark-strong); border-radius: var(--radius-m); overflow: hidden; background: var(--paper); color: var(--ink); box-shadow: 0 50px 100px -40px rgba(0,0,0,.7); }
.ac-app__bar { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; padding: .65rem 1rem; background: var(--cream); border-bottom: 1px solid var(--line-on-light); }
.ac-app__dots { display: flex; gap: 6px; }
.ac-app__dots i { width: 10px; height: 10px; border-radius: 50%; background: var(--stone); }
.ac-app__url { color: var(--slate); font-size: .72rem; }
.ac-app__flags { margin-left: auto; display: flex; gap: .4rem; flex-wrap: wrap; }
/* QA: the app mock is a light surface inside a deep section — use the light-ground tag style */
.ac-app .tag { color: color-mix(in srgb, var(--tag-c) 55%, var(--ink)); border-color: color-mix(in srgb, var(--tag-c) 45%, transparent); background: color-mix(in srgb, var(--tag-c) 7%, transparent); }
.ac-app__body { display: grid; grid-template-columns: 240px minmax(0, 1fr); min-height: 460px; }
.ac-app__nav { padding: 1.25rem; border-right: 1px solid var(--line-on-light); background: var(--ivory); display: flex; flex-direction: column; gap: 1.5rem; }
.ac-app__who { display: flex; gap: .7rem; align-items: center; }
.ac-app__who > span:last-child { display: grid; font-size: .875rem; line-height: 1.3; }
.ac-app__who .mono { font-size: .66rem; color: var(--slate); }
.ac-app__avatar { width: 40px; height: 40px; flex: none; border-radius: 50%; display: grid; place-items: center; background: var(--navy-900); color: var(--gold-soft); font-weight: 700; font-size: .8rem; }
.ac-app__tabs { display: grid; gap: .2rem; }
.ac-app__tabs [role="tab"] { text-align: left; padding: .65rem .8rem; border: 0; border-radius: var(--radius-s); background: none; font-size: .875rem; font-weight: 600; color: var(--slate); min-height: 40px; }
.ac-app__tabs [role="tab"][aria-selected="true"] { background: var(--white); color: var(--ink); box-shadow: inset 2px 0 0 var(--gold-deep), var(--shadow-lift); }
@media (hover: hover) { .ac-app__tabs [role="tab"]:hover { color: var(--ink); } }
.ac-app__main { padding: clamp(1rem, 2.5vw, 1.75rem); min-width: 0; }
.ac-app__grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .9rem; }
.ac-card { padding: 1.1rem 1.2rem; background: var(--white); border: 1px solid var(--line-on-light); border-radius: var(--radius-s); display: grid; gap: .45rem; align-content: start; }
.ac-card--wide { grid-column: span 2; }
.ac-card__label { font-family: var(--font-mono); font-size: .66rem; letter-spacing: .08em; text-transform: uppercase; color: var(--slate); }
.ac-card__big { font-family: var(--font-serif); font-size: 2.3rem; line-height: 1; font-variant-numeric: tabular-nums; }
.ac-card__big span { font-size: 1.2rem; margin-left: .1rem; color: var(--slate); }
.ac-card__big--sm { font-size: 1.5rem; }
.ac-card__sub { font-size: .8125rem; color: var(--slate); }
.ac-card__quote { font-family: var(--font-serif); font-style: italic; font-size: 1.2rem; line-height: 1.35; }
.ac-progress { height: 6px; border-radius: 6px; background: var(--cream); overflow: hidden; }
.ac-progress span { display: block; height: 100%; background: linear-gradient(90deg, var(--gold-deep), var(--gold)); border-radius: inherit; }
.ac-table { width: 100%; border-collapse: collapse; font-size: .875rem; }
.ac-table th, .ac-table td { text-align: left; padding: .8rem .6rem; border-bottom: 1px solid var(--line-on-light); }
.ac-table th { font-family: var(--font-mono); font-size: .66rem; letter-spacing: .08em; text-transform: uppercase; color: var(--slate); font-weight: 500; }
.ac-table td:nth-child(2) { font-variant-numeric: tabular-nums; }
.ac-pill { display: inline-block; padding: .2rem .55rem; border-radius: 999px; font-size: .72rem; font-weight: 650; background: color-mix(in srgb, var(--st-development) 14%, transparent); color: #6E4C16; white-space: nowrap; }
.ac-pill--ok { background: color-mix(in srgb, var(--st-verified) 14%, transparent); color: #2C5A3F; }
.ac-evidence { list-style: none; padding: 0; margin: 0; }
.ac-evidence li { display: grid; grid-template-columns: 6.5rem minmax(0, 1fr) auto; gap: 1rem; align-items: center; padding: .85rem 0; border-bottom: 1px solid var(--line-on-light); font-size: .9rem; }
.ac-evidence__type { color: var(--gold-ink); font-size: .68rem; text-transform: uppercase; letter-spacing: .06em; }
.ac-comps { list-style: none; padding: 0; margin: 0; display: grid; gap: 1rem; }
.ac-comps li { display: grid; grid-template-columns: minmax(0, 12rem) minmax(0, 1fr) 6rem; gap: 1rem; align-items: center; font-size: .9rem; font-weight: 600; }
.ac-comps__bar { height: 8px; background: var(--cream); border-radius: 8px; overflow: hidden; }
.ac-comps__bar i { display: block; height: 100%; background: var(--navy-700); border-radius: inherit; }
.ac-comps .mono { font-size: .68rem; color: var(--slate); text-align: right; }
@media (max-width: 860px) {
  .ac-app__body { grid-template-columns: minmax(0, 1fr); } /* QA: 1fr let the scrolling tab strip blow the mock out to 510px at 390 */
  .ac-app__nav { min-width: 0; border-right: 0; border-bottom: 1px solid var(--line-on-light); }
  .ac-app__tabs { grid-auto-flow: column; grid-auto-columns: max-content; overflow-x: auto; }
  .ac-app__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ac-card--wide { grid-column: 1 / -1; }
  .ac-app__flags { margin-left: 0; }
}
@media (max-width: 520px) {
  .ac-evidence li { grid-template-columns: minmax(0, 1fr) auto; }
  .ac-evidence__type { grid-column: 1 / -1; }
  .ac-comps li { grid-template-columns: minmax(0, 1fr) 5rem; }
  .ac-comps__bar { grid-column: 1 / -1; grid-row: 2; }
  .ac-table td:first-child { min-width: 0; }
}

/* Register */
.ac-register__grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(2rem, 5vw, 6rem); align-items: start; }
.ac-choices { grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr)); }
.ac-choices .choice input { accent-color: var(--navy-900); }
@media (max-width: 900px) { .ac-register__grid { grid-template-columns: 1fr; } }