/* ============================================================
   Sunlit Studio OS™ — builder platform styles.

   Load order:  sunlit-brand.css -> sunlit-type.css -> app.css
   Tokens (colour, type faces) come from sunlit-brand.css and
   the type scale from sunlit-type.css; neither is redeclared
   here. Components follow the site funnel: square corners,
   hairline stone borders, brass-deep primary, cream selection.
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }
html { background: var(--stone-lt); }
body { margin: 0; min-height: 100vh; display: flex; flex-direction: column; background: var(--stone-lt); }
main { flex: 1; outline: none; }

.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link { position: absolute; left: 16px; top: -60px; z-index: 100; background: var(--paper); padding: 10px 16px; }
.skip-link:focus { top: 12px; }

:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }

/* ---- Header --------------------------------------------------------------- */

.os-head { background: var(--paper); border-bottom: 1px solid var(--stone-line); }
.os-head__inner {
  max-width: 1200px; margin: 0 auto; padding: 12px clamp(16px, 4vw, 40px);
  display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 76px;
}
.os-brand { display: flex; align-items: center; gap: 14px; text-decoration: none; color: var(--ink); }
.os-brand img { width: 52px; height: 52px; display: block; }
.os-brand__name {
  font-family: var(--display); font-weight: var(--w-head); font-size: 1.05rem;
  letter-spacing: .16em; text-transform: uppercase; white-space: nowrap;
}
.os-head__account { display: flex; align-items: center; gap: 22px; font-size: var(--t-small); }
.os-head__email { color: var(--greige); max-width: 26ch; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.os-head__link {
  background: none; border: 0; padding: 10px 0; cursor: pointer; font: inherit;
  font-size: var(--t-micro); font-weight: var(--w-title); letter-spacing: .14em; text-transform: uppercase;
  color: var(--ink); text-decoration: none; min-height: 44px; display: inline-flex; align-items: center;
}
.os-head__link:hover { color: var(--brass-d); }

@media (max-width: 720px) {
  .os-head__email { display: none; }
  .os-brand img { width: 44px; height: 44px; }
  .os-brand__name { font-size: .92rem; letter-spacing: .12em; }
  .os-head__account { gap: 16px; }
}
@media (max-width: 420px) { .os-brand__name { display: none; } }

/* ---- Screen --------------------------------------------------------------- */

.screen {
  max-width: 920px; margin: 0 auto;
  padding: clamp(36px, 7vh, 88px) clamp(16px, 4vw, 40px) clamp(56px, 9vh, 112px);
}
.screen--narrow { max-width: 560px; }
.screen--wide { max-width: 1040px; }
.screen--center { text-align: center; }
.screen--center p { margin-inline: auto; }
.screen--welcome { padding-top: clamp(64px, 14vh, 160px); max-width: 720px; }

.screen-eyebrow { margin: 0 0 18px; }
.screen-title {
  font-size: clamp(1.75rem, 1.3rem + 1.7vw, 2.6rem);
  line-height: var(--lh-tight);
  outline: none;
  max-width: 30ch;
  text-wrap: balance;
}
.screen--center .screen-title { margin-inline: auto; }
.screen-title--display { font-size: clamp(2.1rem, 1.5rem + 2.4vw, 3.4rem); max-width: 26ch; }
.screen-sub {
  font-size: var(--t-lead); color: var(--greige); margin: 18px 0 0; max-width: 58ch;
}
.screen-note { margin: 18px 0 0; font-size: var(--t-small); color: var(--greige); letter-spacing: .04em; }
.screen-body { margin-top: clamp(28px, 5vh, 44px); }

/* ---- Progress (understated: eyebrow + 2px brass line) --------------------- */

.progress { margin-bottom: clamp(28px, 5vh, 48px); }
.progress__meta { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; margin-bottom: 12px; }
.progress__count { color: var(--greige); letter-spacing: .14em; }
.progress__track { height: 2px; background: var(--stone-line); }
.progress__fill { height: 100%; background: var(--brass); transition: width .35s ease; }
.save-state { font-size: var(--t-micro); color: var(--greige); letter-spacing: .06em; min-height: 1em; }
.save-state[data-state="error"] { color: #8A3B2E; }

/* ---- Selection cards ------------------------------------------------------ */

.choice { border: 0; padding: 0; margin: 0; min-width: 0; }
.choice__legend {
  font-family: var(--display); font-size: var(--t-h3); font-weight: var(--w-head);
  color: var(--ink); padding: 0; margin: 0 0 16px;
}
.question-stack { display: grid; gap: clamp(32px, 5vh, 48px); }

.cards { display: grid; gap: 14px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (min-width: 1000px) { .cards--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 560px) { .cards, .cards--3 { grid-template-columns: 1fr; gap: 10px; } }

.card {
  position: relative; display: flex; align-items: center; justify-content: space-between; gap: 16px;
  min-height: 92px; padding: 22px 22px 22px 24px;
  background: var(--paper); border: 1px solid var(--stone-line);
  cursor: pointer; user-select: none;
  transition: border-color .15s ease, background-color .15s ease, box-shadow .15s ease;
}
@media (max-width: 560px) { .card { min-height: 68px; padding: 16px 18px; } }
.card input { position: absolute; opacity: 0; width: 1px; height: 1px; pointer-events: none; }
.card__label {
  font-family: var(--display); font-weight: var(--w-head); font-size: 1.3rem; line-height: 1.25;
  color: var(--ink); letter-spacing: .01em;
}
.card__mark {
  flex: 0 0 auto; width: 22px; height: 22px; border: 1px solid var(--stone-line); background: var(--paper);
  display: grid; place-items: center; transition: background-color .15s ease, border-color .15s ease;
}
.card__mark--radio { border-radius: 50%; }
.card:hover { border-color: var(--brass); background: #FFFDF9; }
.card.is-selected, .card:has(input:checked) {
  border-color: var(--brass-d); background: var(--cream); box-shadow: inset 0 0 0 1px var(--brass-d);
}
.card.is-selected .card__mark, .card:has(input:checked) .card__mark { background: var(--brass-d); border-color: var(--brass-d); }
.card.is-selected .card__mark::after, .card:has(input:checked) .card__mark::after {
  content: ""; width: 6px; height: 11px; border: solid var(--paper); border-width: 0 2px 2px 0;
  transform: translateY(-1px) rotate(45deg);
}
.card:has(input:focus-visible) { outline: 2px solid var(--ink); outline-offset: 3px; }

/* ---- Fields --------------------------------------------------------------- */

.fields { display: grid; gap: 22px 24px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.fields--single { grid-template-columns: 1fr; max-width: 560px; }
.field--full { grid-column: 1 / -1; }
@media (max-width: 640px) { .fields { grid-template-columns: 1fr; } }

.field label {
  display: flex; align-items: baseline; gap: 8px; margin-bottom: 8px;
  font-size: var(--t-micro); font-weight: var(--w-title); letter-spacing: .12em; text-transform: uppercase; color: var(--ink);
}
.field .req { color: var(--brass-d); margin-left: -4px; }
.field .optional { font-weight: 400; letter-spacing: .06em; text-transform: none; color: var(--greige); font-size: var(--t-micro); }
.field input, .field select, .field textarea {
  width: 100%; min-height: 54px; padding: 14px 16px;
  font: inherit; font-size: 1rem; color: var(--ink);
  background: var(--paper); border: 1px solid var(--stone-line); border-radius: 0;
  transition: border-color .15s ease;
  -webkit-appearance: none; appearance: none;
}
.field select {
  background-image: linear-gradient(45deg, transparent 50%, var(--brass-d) 50%), linear-gradient(135deg, var(--brass-d) 50%, transparent 50%);
  background-position: calc(100% - 22px) 50%, calc(100% - 16px) 50%;
  background-size: 6px 6px; background-repeat: no-repeat; padding-right: 44px;
}
.field textarea { min-height: 96px; resize: vertical; line-height: var(--lh-body); }
.field input::placeholder, .field textarea::placeholder { color: #A39B90; }
.field input:hover, .field select:hover, .field textarea:hover { border-color: var(--brass); }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--brass-d); outline: 2px solid transparent; box-shadow: inset 0 0 0 1px var(--brass-d); }
.field input:focus-visible, .field select:focus-visible, .field textarea:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
.field [aria-invalid="true"] { border-color: #8A3B2E; }
.field-help { margin: 8px 0 0; font-size: var(--t-small); color: var(--greige); }
.field-help--count { text-align: right; font-size: var(--t-micro); letter-spacing: .06em; }
.field-error { margin: 8px 0 0; font-size: var(--t-small); color: #8A3B2E; }
.field--notes { margin-top: clamp(28px, 4vh, 40px); max-width: 640px; }

/* ---- Competitors ---------------------------------------------------------- */

.competitors { display: grid; gap: 18px; }
.competitor { border: 0; border-top: 1px solid var(--stone-line); padding: 18px 0 0; margin: 0; min-width: 0; }
.competitor__legend { padding: 0 0 12px; font-size: var(--t-micro); font-weight: var(--w-title); letter-spacing: var(--ls-eyebrow); text-transform: uppercase; color: var(--brass-d); }
.competitor__fields { display: grid; grid-template-columns: 3fr 2fr; gap: 16px 20px; }
@media (max-width: 640px) { .competitor__fields { grid-template-columns: 1fr; } }
.add-row {
  margin-top: 22px; background: none; border: 0; padding: 12px 0; min-height: 44px; cursor: pointer;
  font: inherit; font-size: var(--t-micro); font-weight: var(--w-title); letter-spacing: .14em; text-transform: uppercase; color: var(--brass-d);
}
.add-row:hover { color: var(--ink); }

/* ---- Buttons (Brand Kit 04: square, brass-deep) ----------------------------- */

.os-btn {
  display: inline-flex; align-items: center; justify-content: center; text-align: center;
  min-height: 52px; padding: 14px 34px;
  font-family: var(--body); font-size: .78rem; font-weight: var(--w-title);
  letter-spacing: var(--ls-button); text-transform: uppercase; text-decoration: none;
  border: 1px solid var(--brass-d); border-radius: 0; cursor: pointer;
  transition: background-color .15s ease, color .15s ease, border-color .15s ease;
}
.os-btn--solid { background: var(--brass-d); color: var(--paper); }
.os-btn--solid:hover { background: var(--ink); border-color: var(--ink); }
.os-btn--outline { background: transparent; color: var(--brass-d); }
.os-btn--outline:hover { background: var(--brass-d); color: var(--paper); }
.os-btn--quiet { background: transparent; color: var(--ink); border-color: transparent; padding-inline: 18px; }
.os-btn--quiet:hover { color: var(--brass-d); }
.os-btn[disabled] { opacity: .55; cursor: default; }
.os-btn[aria-busy="true"] { cursor: progress; }

.link-back {
  background: none; border: 0; padding: 12px 0; min-height: 44px; display: inline-flex; align-items: center; cursor: pointer;
  font: inherit; font-size: var(--t-micro); font-weight: var(--w-title); letter-spacing: .14em; text-transform: uppercase;
  color: var(--greige); text-decoration: none;
}
.link-back::before { content: "←"; margin-right: 10px; letter-spacing: 0; }
.link-back:hover { color: var(--ink); }

.screen-actions {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  margin-top: clamp(36px, 6vh, 56px); padding-top: 26px; border-top: 1px solid var(--stone-line);
}
.screen-actions__right { display: flex; align-items: center; gap: 8px; }
.screen-actions--center { justify-content: center; border-top: 0; padding-top: 0; }
.screen-actions--start { justify-content: flex-start; border-top: 0; padding-top: 0; margin-top: 28px; flex-wrap: wrap; }
.screen-actions--stack { flex-direction: column; align-items: stretch; border-top: 0; padding-top: 0; }
.screen--center .screen-actions--stack { align-items: center; }
@media (max-width: 560px) {
  .screen-actions { flex-wrap: wrap-reverse; }
  .screen-actions__right { flex: 1 1 100%; flex-direction: column-reverse; align-items: stretch; }
  .screen-actions__right .os-btn { width: 100%; }
  .screen-actions--center .os-btn, .screen-actions--stack .os-btn { width: 100%; }
  .screen-actions--start { flex-direction: column; align-items: stretch; }
  .screen-actions--start .os-btn { width: 100%; }
  .project-row { flex-direction: column; align-items: flex-start; gap: 10px; padding: 20px; }
}

.form-error { margin: 24px 0 0; color: #8A3B2E; font-size: var(--t-small); }

.notice { background: var(--paper); border: 1px solid var(--stone-line); border-top: 2px solid var(--brass); padding: 28px; margin-top: 32px; }
.notice__title { font-family: var(--display); font-size: var(--t-h3); text-transform: uppercase; letter-spacing: var(--ls-display); margin: 0 0 10px; }

/* ---- Upload --------------------------------------------------------------- */

.drop {
  position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center;
  min-height: clamp(240px, 34vh, 340px); padding: 40px 24px;
  background: var(--paper); border: 1px dashed #C9C0B1;
  transition: border-color .15s ease, background-color .15s ease;
}
.drop.is-over { border-color: var(--brass-d); border-style: solid; background: var(--cream); }
.drop__title { font-family: var(--display); font-size: clamp(1.5rem, 1.2rem + 1vw, 2rem); font-weight: var(--w-head); letter-spacing: var(--ls-display); text-transform: uppercase; margin: 0; }
.drop__or { margin: 10px 0 18px; color: var(--greige); font-size: var(--t-small); }
.drop__types { margin: 22px 0 0; font-size: var(--t-micro); letter-spacing: .08em; color: var(--greige); }
/* Phones cannot drag files in; iPads can (from Files), so keep the prompt there. */
@media (hover: none) and (max-width: 640px) { .drop__title, .drop__or { display: none; } }

.file-list { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 8px; }
.file {
  display: grid; grid-template-columns: minmax(0, 1fr) auto auto auto; align-items: center; gap: 16px;
  background: var(--paper); border: 1px solid var(--stone-line); padding: 12px 16px; min-height: 60px;
}
.file__name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--ink); text-decoration: none; }
a.file__name:hover { color: var(--brass-d); text-decoration: underline; }
.file__meta { color: var(--greige); font-size: var(--t-small); }
.file__status { font-size: var(--t-micro); letter-spacing: .1em; text-transform: uppercase; color: var(--brass-d); min-width: 90px; }
.file.is-error .file__status { text-transform: none; letter-spacing: 0; font-size: var(--t-small); color: #8A3B2E; min-width: 0; }
.file__bar { display: block; width: 90px; height: 2px; background: var(--stone-line); }
.file__bar-fill { display: block; height: 100%; width: 0; background: var(--brass); transition: width .2s ease; }
.file__remove {
  background: none; border: 0; cursor: pointer; font: inherit; min-height: 44px; padding: 0 4px;
  font-size: var(--t-micro); letter-spacing: .12em; text-transform: uppercase; color: var(--greige);
}
.file__remove:hover { color: var(--ink); }
@media (max-width: 640px) {
  .file { grid-template-columns: minmax(0, 1fr) auto; row-gap: 4px; }
  .file__meta { grid-column: 1; }
  .file__status { grid-column: 1; }
  .file__remove { grid-column: 2; grid-row: 1 / span 3; }
}

/* ---- Project list --------------------------------------------------------- */

.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.project-list { list-style: none; padding: 0; margin: 36px 0 0; display: grid; gap: 12px; }
.project-row {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  background: var(--paper); border: 1px solid var(--stone-line); padding: 24px 28px;
  text-decoration: none; color: var(--ink); transition: border-color .15s ease;
}
.project-row:hover { border-color: var(--brass); }
.project-row__main { display: grid; gap: 4px; min-width: 0; }
.project-row__name { font-family: var(--display); font-size: 1.45rem; font-weight: var(--w-head); }
.project-row__meta { color: var(--greige); font-size: var(--t-small); }
.project-row__status { flex: 0 0 auto; font-size: var(--t-micro); font-weight: var(--w-title); letter-spacing: .14em; text-transform: uppercase; color: var(--brass-d); }
.project-row__status.is-draft { color: var(--greige); }
.empty { margin-top: 36px; padding: 48px 28px; background: var(--paper); border: 1px solid var(--stone-line); text-align: center; }
.empty .screen-sub { margin: 0 auto; }

/* ---- Screen 20 ------------------------------------------------------------ */

.ready-grid { display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); gap: 20px; margin-top: clamp(32px, 5vh, 48px); }
@media (max-width: 820px) { .ready-grid { grid-template-columns: 1fr; } }
.summary-card { background: var(--paper); border: 1px solid var(--stone-line); border-top: 3px solid var(--brass); padding: clamp(28px, 4vw, 44px); }
.summary-card__name { font-size: clamp(1.6rem, 1.3rem + 1vw, 2.1rem); margin: 10px 0 8px; text-transform: none; letter-spacing: .01em; }
.summary-card__place { margin: 0; color: var(--greige); font-size: var(--t-lead); }
.summary-card__community { margin: 4px 0 0; color: var(--greige); }
.summary-card__facts { margin: 28px 0 0; display: grid; gap: 0; }
.summary-card__facts div { display: flex; justify-content: space-between; gap: 16px; padding: 14px 0; border-top: 1px solid var(--stone-line); }
.summary-card__facts dt { font-size: var(--t-micro); font-weight: var(--w-title); letter-spacing: .12em; text-transform: uppercase; color: var(--greige); }
.summary-card__facts dd { margin: 0; text-align: right; font-family: var(--display); font-size: 1.2rem; }
.status-card { background: var(--paper); border: 1px solid var(--stone-line); padding: clamp(24px, 3vw, 36px); align-self: start; }
.status-list { list-style: none; margin: 0; padding: 0; }
.status-list li { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 16px 0; border-top: 1px solid var(--stone-line); font-family: var(--display); font-size: 1.25rem; }
.status-list li:first-child { border-top: 0; padding-top: 0; }
.status-list__mark { color: var(--brass-d); font-family: var(--body); font-size: 1rem; }
.status-list li.is-later { color: var(--greige); }
.next-panel { margin-top: 20px; background: var(--cream); border: 1px solid var(--stone-line); padding: clamp(28px, 4vw, 48px); }
.next-panel__copy { font-family: var(--display); font-size: clamp(1.25rem, 1.1rem + .5vw, 1.55rem); line-height: 1.4; margin: 14px 0 0; max-width: 46ch; }

/* ---- Header: current section ---------------------------------------------- */

.os-head__link[aria-current="page"] { color: var(--brass-d); box-shadow: inset 0 -1px 0 var(--brass); }

/* ---- Panels (Builder Profile, workspace) ------------------------------------ */

.panel { background: var(--paper); border: 1px solid var(--stone-line); padding: clamp(24px, 3vw, 36px); min-width: 0; }
.panel .eyebrow { margin: 0 0 14px; }
.panel__title { font-size: clamp(1.4rem, 1.2rem + .8vw, 1.8rem); text-transform: none; letter-spacing: .01em; margin: 0 0 18px; }
.panel__lead { font-family: var(--display); font-size: 1.3rem; line-height: 1.35; margin: 0; }
.panel__note { margin: 12px 0 0; color: var(--greige); font-size: var(--t-small); }
.facts { margin: 0; }
.facts div { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; padding: 12px 0; border-top: 1px solid var(--stone-line); }
.facts div:first-child { border-top: 0; padding-top: 0; }
.facts dt { font-size: var(--t-micro); font-weight: var(--w-title); letter-spacing: .12em; text-transform: uppercase; color: var(--greige); flex: 0 0 auto; }
.facts dd { margin: 0; text-align: right; font-family: var(--display); font-size: 1.15rem; min-width: 0; overflow-wrap: anywhere; }
.plain-list { list-style: none; margin: 0; padding: 0; }
.plain-list li { font-family: var(--display); font-size: 1.2rem; padding: 8px 0; border-top: 1px solid var(--stone-line); }
.plain-list li:first-child { border-top: 0; padding-top: 0; }
.muted { color: var(--greige); }
.panel .status-list li:first-child { padding-top: 0; }
.status-list a { color: var(--brass-d); }

.profile-grid, .ws-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin-top: clamp(28px, 4vh, 40px); }
@media (max-width: 760px) { .profile-grid, .ws-grid { grid-template-columns: 1fr; } }
.account-line { display: flex; flex-wrap: wrap; align-items: baseline; gap: 14px; margin-top: 32px; padding-top: 22px; border-top: 1px solid var(--stone-line); color: var(--greige); font-size: var(--t-small); }

/* ---- Project workspace ------------------------------------------------------ */

.screen--workspace { padding-top: clamp(28px, 5vh, 56px); }
.screen--workspace > .link-back { margin-bottom: 10px; }
.ws-title { text-transform: none; letter-spacing: .01em; max-width: none; }
.ws-meta { margin: 10px 0 0; color: var(--greige); }
.ws-tabs {
  display: flex; gap: clamp(20px, 3vw, 36px); margin-top: clamp(24px, 4vh, 36px);
  border-bottom: 1px solid var(--stone-line); overflow-x: auto; scrollbar-width: none;
}
.ws-tabs::-webkit-scrollbar { display: none; }
.ws-tabs a {
  flex: 0 0 auto; padding: 14px 0 13px; min-height: 44px; text-decoration: none; white-space: nowrap;
  font-size: var(--t-micro); font-weight: var(--w-title); letter-spacing: .14em; text-transform: uppercase; color: var(--greige);
  border-bottom: 2px solid transparent; margin-bottom: -1px;
}
.ws-tabs a:hover { color: var(--ink); }
.ws-tabs a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--brass); }
.ws-body { padding-top: 4px; }
.ws-body .ws-grid { margin-top: 28px; }
.ws-files { margin-top: 28px; }
.coming { margin-top: 28px; padding: clamp(40px, 7vh, 72px) clamp(24px, 4vw, 48px); background: var(--paper); border: 1px solid var(--stone-line); text-align: center; }
.coming p { margin-inline: auto; }
.coming .eyebrow { margin: 0 auto 16px; }
.coming__title { font-size: clamp(1.8rem, 1.4rem + 1.4vw, 2.6rem); margin: 0; }
.coming__copy { font-family: var(--display); font-size: clamp(1.2rem, 1.1rem + .4vw, 1.45rem); line-height: 1.4; margin: 18px auto 0; max-width: 44ch; }
.coming__note { margin: 18px auto 0; color: var(--greige); font-size: var(--t-small); }

/* ---- BuildAnalytics(TM) ----------------------------------------------------
   Same tokens and components as the rest of the OS. Evidence labels are
   distinguished by weight and outline, not by bright colour. */

.ba-nav, .ba-seg {
  display: flex; gap: clamp(18px, 2.6vw, 30px); margin-top: 18px; overflow-x: auto; scrollbar-width: none;
}
.ba-nav::-webkit-scrollbar, .ba-seg::-webkit-scrollbar { display: none; }
.ba-nav a, .ba-seg a {
  flex: 0 0 auto; padding: 10px 0; min-height: 44px; display: inline-flex; align-items: center; text-decoration: none; white-space: nowrap;
  font-size: var(--t-micro); letter-spacing: .12em; text-transform: uppercase; color: var(--greige);
  border-bottom: 1px solid transparent;
}
.ba-nav a:hover, .ba-seg a:hover { color: var(--ink); }
.ba-nav a[aria-current="page"], .ba-seg a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--brass); }
.ba-seg { margin: 6px 0 8px; padding: 4px 0; border-bottom: 1px solid var(--stone-line); }
.ba-demo { margin: 18px 0 0; padding: 10px 14px; border: 1px dashed #B9A27A; background: #FFFDF8; font-size: var(--t-small); color: var(--greige); }
.ba-body { padding-top: 8px; }

.ba-intro { margin-top: clamp(26px, 4vh, 40px); }
.ba-intro .eyebrow { margin: 0 0 10px; }
.ba-intro--inner { margin-top: 24px; }
.ba-h2 { font-size: clamp(1.5rem, 1.2rem + 1.1vw, 2.1rem); line-height: 1.2; max-width: 32ch; }
.ba-h2--display { font-size: clamp(1.8rem, 1.4rem + 1.6vw, 2.7rem); }
.ba-h3 { font-size: 1.15rem; letter-spacing: .06em; margin: 0; }
.ba-sub { margin: 6px 0 0; color: var(--greige); font-size: var(--t-small); }
.ba-section { margin-top: clamp(30px, 5vh, 48px); }
.ba-section > .eyebrow { margin: 0 0 14px; }
.ba-empty { margin: 18px 0 0; padding: 26px; border: 1px dashed var(--stone-line); color: var(--greige); font-size: var(--t-small); text-align: center; background: var(--paper); }

.ba-grid { display: grid; gap: 16px; margin-top: 22px; }
.ba-grid--overview { grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); }
.ba-grid--two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 820px) { .ba-grid--overview, .ba-grid--two { grid-template-columns: 1fr; } }
.ba-position { margin-top: 22px; }

.ba-progress { list-style: none; margin: 0; padding: 0; }
.ba-progress li { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; padding: 11px 0; border-top: 1px solid var(--stone-line); font-family: var(--display); font-size: 1.12rem; }
.ba-progress li:first-child { border-top: 0; padding-top: 0; }
.ba-status { font-family: var(--body); font-size: var(--t-micro); letter-spacing: .12em; text-transform: uppercase; color: var(--greige); white-space: nowrap; }
.ba-status::before { content: ""; display: inline-block; width: 7px; height: 7px; margin-right: 8px; border-radius: 50%; border: 1px solid var(--stone-line); vertical-align: 1px; }
.ba-status--researching::before { border-color: var(--brass); }
.ba-status--analysis_ready::before { background: var(--cream); border-color: var(--brass); }
.ba-status--reviewed { color: var(--ink); }
.ba-status--reviewed::before { background: var(--brass); border-color: var(--brass); }
.ba-status--approved { color: var(--brass-d); }
.ba-status--approved::before { background: var(--brass-d); border-color: var(--brass-d); }

.ba-question { margin: clamp(30px, 5vh, 44px) 0 0; padding: clamp(26px, 4vw, 40px); background: var(--cream); border: 1px solid var(--stone-line); }
.ba-question .eyebrow { margin: 0 0 12px; }
.ba-question p:last-child { font-family: var(--display); font-style: italic; font-size: clamp(1.3rem, 1.1rem + .8vw, 1.75rem); line-height: 1.35; margin: 0; max-width: 40ch; }

.ba-signals { list-style: none; counter-reset: sig; margin: 0; padding: 0; display: grid; gap: 12px; }
.ba-signals li { counter-increment: sig; background: var(--paper); border: 1px solid var(--stone-line); padding: 18px 20px 18px 56px; position: relative; }
.ba-signals li::before { content: counter(sig, decimal-leading-zero); position: absolute; left: 20px; top: 17px; font-family: var(--display); color: var(--brass); font-size: 1.1rem; }
.ba-signals li p { margin: 0 0 8px; font-family: var(--display); font-size: 1.18rem; line-height: 1.4; }

.ba-cards { display: grid; gap: 14px; grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 16px; }
.ba-cards--comp { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.ba-cards--comp { align-items: start; }
/* A lone card spans the row (capped for reading) instead of leaving a half-empty grid. */
.ba-cards > :only-child { grid-column: 1 / -1; max-width: 760px; }
@media (max-width: 760px) { .ba-cards, .ba-cards--comp { grid-template-columns: 1fr; } }
.ba-card { background: var(--paper); border: 1px solid var(--stone-line); padding: clamp(20px, 2.4vw, 28px); display: flex; flex-direction: column; min-width: 0; }
.ba-card__head { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; margin-bottom: 14px; }
.ba-card__foot { margin-top: auto; padding-top: 16px; }
.ba-k { margin: 12px 0 3px; font-size: var(--t-micro); font-weight: var(--w-title); letter-spacing: .14em; text-transform: uppercase; color: var(--greige); }
.ba-card__head + .ba-k { margin-top: 0; }
.ba-v { margin: 0; font-size: .98rem; line-height: 1.5; max-width: 62ch; }
.ba-v--lead { font-family: var(--display); font-size: 1.22rem; line-height: 1.35; }
.ba-contra { margin: 14px 0 0; padding: 10px 12px; background: var(--stone-lt); border-left: 2px solid var(--brass); font-size: var(--t-small); }
.ba-confidence, .ba-class { font-size: var(--t-micro); letter-spacing: .08em; color: var(--greige); }
.ba-class { text-transform: uppercase; letter-spacing: .12em; color: var(--ink); }

.ba-chip { display: inline-block; padding: 4px 9px; font-size: .66rem; font-weight: var(--w-title); letter-spacing: .14em; text-transform: uppercase; border: 1px solid var(--stone-line); color: var(--greige); background: var(--paper); line-height: 1.4; }
.ba-chip--best_in_class { background: var(--brass-d); border-color: var(--brass-d); color: var(--paper); }
.ba-chip--market_practice { border-color: var(--brass-d); color: var(--brass-d); }
.ba-chip--sunlit_recommendation { background: var(--cream); border-color: var(--brass); color: var(--ink); }
.ba-chip--intelligent_standardization { border-color: var(--ink); color: var(--ink); }
.ba-chip--hypothesis, .ba-chip--validate { border-style: dashed; }

.ba-evidence-btn { background: none; border: 0; padding: 8px 0; min-height: 40px; cursor: pointer; font: inherit; font-size: var(--t-micro); font-weight: var(--w-title); letter-spacing: .14em; text-transform: uppercase; color: var(--brass-d); }
.ba-evidence-btn:hover { color: var(--ink); }
.ba-evidence-btn__n { color: var(--greige); font-weight: 400; }
.ba-evidence-none { font-size: var(--t-micro); letter-spacing: .08em; color: var(--greige); }

.ba-comp__name { font-family: var(--display); font-size: 1.3rem; font-weight: var(--w-head); margin: 0; text-transform: none; letter-spacing: .01em; }
.ba-comp__meta { margin: 6px 0 0; font-size: var(--t-small); color: var(--greige); }
.ba-attrs { margin: 14px 0 0; }
.ba-attrs div { padding: 9px 0; border-top: 1px solid var(--stone-line); }
.ba-attrs dt { font-size: var(--t-micro); letter-spacing: .12em; text-transform: uppercase; color: var(--greige); }
.ba-attrs dd { margin: 3px 0 0; font-size: .96rem; }
.ba-observed { margin: 10px 0 0; font-size: var(--t-micro); color: var(--greige); letter-spacing: .06em; }

.ba-hypothesis { border-top: 2px solid var(--brass); }
.ba-source-note { margin: 14px 0 0; font-size: var(--t-small); color: var(--greige); }
.ba-mini { list-style: none; margin: 0; padding: 0; }
.ba-mini li { padding: 10px 0; border-top: 1px solid var(--stone-line); font-size: .98rem; line-height: 1.45; }
.ba-mini li:first-child { border-top: 0; padding-top: 0; }
.ba-mini__cat { display: block; font-size: var(--t-micro); letter-spacing: .12em; text-transform: uppercase; color: var(--greige); margin-bottom: 2px; }

.ba-tiers { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-top: 16px; }
@media (max-width: 1000px) { .ba-tiers { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .ba-tiers { grid-template-columns: 1fr; } }
.ba-tier { background: var(--paper); border: 1px solid var(--stone-line); padding: 18px; }
.ba-tier--high_value { border-top: 3px solid var(--brass-d); }
.ba-tier--expected { border-top: 3px solid var(--brass); }
.ba-tier--low_differentiation { border-top: 3px solid var(--stone-line); }
.ba-tier--unproven { border-top: 3px dashed var(--stone-line); }
.ba-tier__name { margin: 0; font-family: var(--display); font-size: 1.2rem; text-transform: uppercase; letter-spacing: .06em; }
.ba-tier__note { margin: 4px 0 10px; font-size: var(--t-small); color: var(--greige); }
.ba-tier ul { list-style: none; margin: 0; padding: 0; }
.ba-tier li { padding: 10px 0; border-top: 1px solid var(--stone-line); font-size: .95rem; }
.ba-tier__none { color: var(--greige); margin: 0; }

.ba-group { padding-top: 4px; }
.ba-group > .ba-h3::before { content: ""; display: inline-block; width: 18px; height: 1px; background: var(--brass); margin-right: 10px; vertical-align: 5px; }
.ba-is { margin: 10px 0 0; }
.ba-principle { margin: 8px 0 0; font-family: var(--display); font-style: italic; font-size: clamp(1.2rem, 1.05rem + .5vw, 1.45rem); max-width: 46ch; }
.ba-standard-note { margin: 30px 0 0; padding: 16px 18px; border-left: 2px solid var(--brass); background: var(--paper); font-size: var(--t-small); color: var(--greige); max-width: 70ch; }

/* Evidence drawer */
.ba-drawer { position: fixed; inset: 0; z-index: 80; }
.ba-drawer[hidden] { display: none; }
.ba-drawer__scrim { position: absolute; inset: 0; background: rgba(43, 38, 32, .32); }
.ba-drawer__panel { position: absolute; top: 0; right: 0; bottom: 0; width: min(520px, 100%); background: var(--stone-lt); box-shadow: -8px 0 30px rgba(43, 38, 32, .12); display: flex; flex-direction: column; outline: none; }
.ba-drawer__head { display: flex; justify-content: space-between; align-items: center; padding: 18px 24px; background: var(--paper); border-bottom: 1px solid var(--stone-line); }
.ba-drawer__head .eyebrow { margin: 0; }
.ba-drawer__close { background: none; border: 0; cursor: pointer; font: inherit; font-size: var(--t-micro); letter-spacing: .14em; text-transform: uppercase; color: var(--ink); min-height: 44px; padding: 0 4px; }
.ba-drawer__body { overflow-y: auto; padding: 20px 24px 40px; display: grid; gap: 14px; }
body.ba-drawer-open { overflow: hidden; }
@media (max-width: 560px) { .ba-drawer__panel { width: 100%; } }
.ba-ev { background: var(--paper); border: 1px solid var(--stone-line); padding: 20px; }
.ba-ev__org { margin: 0; font-size: var(--t-micro); letter-spacing: .14em; text-transform: uppercase; color: var(--brass-d); }
.ba-ev__title { margin: 6px 0 4px; font-family: var(--display); font-size: 1.2rem; text-transform: none; letter-spacing: .01em; }
.ba-ev__meta { margin: 0; font-size: var(--t-small); color: var(--greige); }
.ba-ev__flag { margin: 10px 0 0; padding: 8px 10px; background: var(--stone-lt); font-size: var(--t-small); }
.ba-ev__dl { margin: 14px 0 0; }
.ba-ev__dl div { padding: 8px 0; border-top: 1px solid var(--stone-line); }
.ba-ev__dl dt { font-size: var(--t-micro); letter-spacing: .12em; text-transform: uppercase; color: var(--greige); }
.ba-ev__dl dd { margin: 3px 0 0; font-size: .95rem; line-height: 1.45; }
.ba-ev__link, .ba-ev__ref { display: inline-block; margin-top: 12px; font-size: var(--t-small); color: var(--brass-d); }

/* Deliverable */
.vcs-status { margin: 8px 0 0; font-size: var(--t-micro); letter-spacing: .12em; text-transform: uppercase; color: var(--greige); }
.vcs { margin-top: 24px; background: var(--paper); border: 1px solid var(--stone-line); border-top: 3px solid var(--brass); padding: clamp(24px, 4vw, 48px); }
.vcs-summary { margin: 0; font-family: var(--display); font-size: clamp(1.25rem, 1.1rem + .5vw, 1.5rem); line-height: 1.45; max-width: 60ch; }
.vcs-block { margin-top: 28px; padding-top: 22px; border-top: 1px solid var(--stone-line); }
.vcs-h { font-size: 1rem; letter-spacing: .1em; margin: 0 0 10px; }
.vcs-p { margin: 0 0 10px; max-width: 64ch; }
.vcs-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.vcs-list li { line-height: 1.5; }
.vcs-list__t { font-family: var(--display); font-size: 1.1rem; }
.vcs-list .ba-chip { vertical-align: 2px; margin-left: 4px; }
.vcs-list .ba-evidence-btn { padding: 0 0 0 8px; min-height: 0; }
.vcs-tag { font-size: var(--t-micro); letter-spacing: .12em; text-transform: uppercase; color: var(--brass-d); }
.vcs-mandates { margin: 0; padding-left: 22px; display: grid; gap: 8px; font-family: var(--display); font-size: 1.12rem; }
.vcs-approve { margin-top: 20px; }
.vcs-confirm { margin: 16px 0 0; padding: 12px 14px; background: var(--paper); border: 1px solid var(--stone-line); font-size: var(--t-small); }
.pvb { margin-top: 24px; background: var(--cream); border: 1px solid var(--stone-line); padding: clamp(24px, 4vw, 44px); }
.pvb-grid { margin: 20px 0 0; }
.pvb-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 16px; padding: 14px 0; border-top: 1px solid var(--stone-line); }
.pvb-row dt { font-size: var(--t-micro); letter-spacing: .12em; text-transform: uppercase; color: var(--greige); padding-top: 3px; }
.pvb-row dd { margin: 0; }
.pvb-row p { margin: 0; }
.pvb-list { margin: 0; padding-left: 18px; }
@media (max-width: 640px) { .pvb-row { grid-template-columns: 1fr; gap: 4px; } }

/* Request funnel */
.ba-request { margin-top: clamp(26px, 4vh, 40px); max-width: 860px; }
.ba-request .eyebrow { margin: 0 0 12px; }
.ba-request .screen-sub { margin-top: 10px; }
.ba-inactive .screen-actions, .ba-received .screen-actions { margin-top: 28px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; }
}