/* Prompt 4 wave pages: Work, Research, 54co shell, Lab, Writing. */

.p4-page {
  background: var(--cream);
}

.p4-main {
  position: relative;
  z-index: 2;
}

.p4-hero {
  width: min(100% - 2.5rem, var(--max));
  margin: 0 auto;
  padding: clamp(140px, 14vw, 190px) 0 clamp(56px, 8vw, 96px);
}

.p4-hero--split {
  min-height: clamp(600px, 88vh, 780px);
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(300px, 0.62fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}

.p4-hero h1 {
  max-width: 12ch;
  margin-top: var(--s-5);
}

.p4-hero__lede {
  margin-top: var(--s-5);
  font-size: var(--fs-lede);
  line-height: 1.5;
  color: var(--charcoal);
}

.p4-section {
  width: min(100% - 2.5rem, var(--max));
  margin: 0 auto;
  padding: clamp(72px, 9vw, 120px) 0;
}

.p4-section__head {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(280px, 0.48fr);
  gap: clamp(1.5rem, 5vw, 4rem);
  align-items: end;
  margin-bottom: var(--s-7);
}

.p4-section__head h2 {
  margin-top: var(--s-4);
}

.p4-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3);
  margin-top: var(--s-6);
}

/* Work: tilted numbered proof cards */
.p4-work-rail {
  position: relative;
  min-height: 430px;
}

.p4-work-rail__path {
  position: absolute;
  inset: 4% 0 0;
  width: 100%;
  height: 90%;
  pointer-events: none;
}

.p4-work-note {
  position: absolute;
  right: 8%;
  top: 8%;
  width: min(210px, 42vw);
  padding: var(--s-5);
  background: var(--butter-tint);
  border: 1px solid rgba(217, 184, 62, 0.25);
  border-radius: var(--r-sm);
  box-shadow: var(--shadow-stick);
  transform: rotate(7deg);
  z-index: 2;
}

.p4-work-note p {
  margin-top: var(--s-3);
  font-family: var(--font-emphasis);
  font-style: italic;
  font-size: 1.55rem;
  line-height: 1.08;
  color: var(--ink);
}

.p4-work-stamp {
  position: absolute;
  left: 4%;
  bottom: 8%;
  width: 150px;
  transform: rotate(-10deg);
  z-index: 1;
}

.p4-case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1rem, 2.4vw, 2rem);
  align-items: stretch;
}

.p4-case-card {
  position: relative;
  min-height: 360px;
  padding: clamp(1.5rem, 3vw, 2.25rem);
  background: var(--paper);
  border: 1px solid var(--hairline);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
}

.p4-case-card:nth-child(1) { transform: rotate(-1.4deg); }
.p4-case-card:nth-child(2) { transform: rotate(1deg); margin-top: var(--s-5); }
.p4-case-card:nth-child(3) { transform: rotate(-0.7deg); }
.p4-case-card:hover { transform: translateY(-5px) rotate(0deg); box-shadow: var(--shadow-lift); color: inherit; }

.p4-case-card__number {
  display: block;
  font-family: var(--font-emphasis);
  font-size: clamp(3.2rem, 7vw, 5.8rem);
  font-style: italic;
  line-height: 0.8;
  color: var(--accent-color, var(--coral));
}

.p4-case-card h3 {
  margin-top: var(--s-5);
  font-size: clamp(1.45rem, 2.3vw, 2.2rem);
  line-height: 1;
}

.p4-case-card p {
  margin-top: var(--s-4);
  color: var(--charcoal);
}

.p4-case-card__link {
  position: absolute;
  left: clamp(1.5rem, 3vw, 2.25rem);
  right: clamp(1.5rem, 3vw, 2.25rem);
  bottom: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 600;
  color: var(--ink);
}

.p4-cta-strip {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--s-5);
  align-items: center;
  padding: clamp(1.75rem, 4vw, 3rem);
  background: var(--ink);
  color: var(--cream);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-card);
}

.p4-cta-strip h2,
.p4-cta-strip p {
  color: var(--cream);
}

.p4-cta-strip h2 {
  font-size: clamp(1.8rem, 3.6vw, 3.2rem);
  max-width: 14ch;
}

/* Research: divided lists, tilted published cards, method spine */
.p4-thread-list {
  border-top: 1px solid var(--hairline-strong);
}

.p4-thread {
  display: grid;
  grid-template-columns: minmax(220px, 0.42fr) minmax(0, 1fr) auto;
  gap: clamp(1rem, 4vw, 3rem);
  align-items: start;
  padding: var(--s-5) 0;
  border-bottom: 1px solid var(--hairline);
}

.p4-thread h3 {
  font-family: var(--font-ui);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  font-weight: 600;
}

.p4-thread p {
  color: var(--charcoal);
}

.p4-status {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 82px;
  padding: 7px 12px;
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.p4-status--open {
  background: var(--coral-tint);
  color: var(--coral-deep);
}

.p4-status--ongoing {
  background: var(--ink);
  color: var(--cream);
}

.p4-published-grid,
.p4-tool-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--s-4);
}

.p4-published-card,
.p4-tool-card,
.p4-pin-card {
  position: relative;
  min-height: 300px;
  padding: var(--s-5);
  background: var(--paper);
  border: 1px solid var(--hairline);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-card);
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
}

.p4-published-card::before {
  content: "";
  position: absolute;
  left: var(--s-5);
  right: var(--s-5);
  top: 0;
  height: 5px;
  background: var(--accent-color, var(--coral));
  border-radius: 0 0 var(--r-sm) var(--r-sm);
}

.p4-published-card:nth-child(1) { transform: rotate(-1.2deg); }
.p4-published-card:nth-child(2) { transform: rotate(1deg); margin-top: var(--s-5); }
.p4-published-card:nth-child(3) { transform: rotate(-0.5deg); }
.p4-published-card:nth-child(4) { transform: rotate(0.8deg); margin-top: var(--s-3); }
.p4-published-card:hover,
.p4-tool-card:hover,
.p4-pin-card:hover {
  transform: translateY(-4px) rotate(0deg);
  box-shadow: var(--shadow-lift);
  color: inherit;
}

.p4-published-card h3,
.p4-tool-card h3,
.p4-pin-card h3 {
  margin-top: var(--s-4);
  font-size: clamp(1.35rem, 2.2vw, 1.9rem);
}

.p4-card-link {
  position: absolute;
  left: var(--s-5);
  bottom: var(--s-5);
  font-weight: 600;
}

.p4-method-list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: method;
  border-top: 1px solid var(--hairline-strong);
}

.p4-method-list li {
  counter-increment: method;
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: var(--s-5);
  padding: var(--s-5) 0;
  border-bottom: 1px solid var(--hairline);
}

.p4-method-list li::before {
  content: counter(method, decimal-leading-zero);
  font-family: var(--font-emphasis);
  font-style: italic;
  font-size: 2.6rem;
  line-height: 1;
  color: var(--coral);
}

.p4-method-list strong {
  display: block;
  color: var(--ink);
}

/* 54co shell */
.p4-shell-status {
  display: inline-block;
  margin-top: var(--s-5);
  padding: 10px 14px;
  background: var(--ink);
  color: var(--cream);
  border-radius: var(--r-sm);
}

.p4-method-note {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--s-3);
}

.p4-method-note article,
.p4-finding,
.p4-question-card {
  background: var(--paper);
  border: 1px solid var(--hairline);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-card);
  padding: var(--s-5);
}

.p4-method-note strong {
  display: block;
  margin-top: var(--s-3);
  color: var(--ink);
}

.p4-findings {
  display: grid;
  gap: var(--s-4);
}

.p4-finding {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: var(--s-5);
}

.p4-finding__number {
  font-family: var(--font-emphasis);
  font-size: 3.3rem;
  font-style: italic;
  line-height: 0.85;
  color: var(--coral);
}

.p4-finding__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--s-4);
  margin-top: var(--s-4);
}

.p4-surprise {
  padding: clamp(2rem, 5vw, 4rem);
  background: var(--butter-tint);
  border: 1px solid rgba(217, 184, 62, 0.25);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-stick);
}

.p4-question-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--s-4);
}

/* African tech ecosystem field guide */
.field-guide-page .p4-hero h1 {
  max-width: 11ch;
}

.field-hero {
  padding-bottom: var(--s-6);
}

.field-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(300px, 0.48fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: end;
}

.field-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3);
  margin-top: var(--s-6);
}

.field-thesis-card {
  position: relative;
  padding: clamp(1.5rem, 3vw, 2.25rem);
  background: var(--paper);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-card);
  transform: rotate(1.2deg);
}

.field-thesis-card p {
  margin-top: var(--s-4);
  font-size: var(--fs-body-lg);
  color: var(--ink);
}

.field-thesis-card__rail {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  margin-top: var(--s-5);
}

.field-thesis-card__rail span {
  padding: 6px 10px;
  border: 1px solid var(--hairline);
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: var(--ls-label);
  color: var(--mute);
}

.field-stat-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--s-3);
  margin-top: var(--s-7);
  border-top: 1px solid var(--hairline-strong);
}

.field-stat-grid article {
  padding-top: var(--s-4);
}

.field-stat-grid strong {
  display: block;
  font-family: var(--font-emphasis);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(2.2rem, 4vw, 4rem);
  line-height: 0.9;
  color: var(--coral);
}

.field-stat-grid span {
  display: block;
  margin-top: var(--s-2);
  color: var(--charcoal);
}

.field-method-note article:nth-child(2) {
  background: var(--lavender-tint);
  border-color: rgba(157, 137, 196, 0.24);
}

.field-method-note article:nth-child(3) {
  background: var(--sky-tint);
  border-color: rgba(82, 144, 184, 0.22);
}

.field-method-note article:nth-child(4) {
  background: var(--mint-tint);
  border-color: rgba(111, 176, 136, 0.22);
}

.field-actor-map {
  display: grid;
  grid-template-columns: minmax(240px, 0.38fr) minmax(0, 1fr);
  gap: var(--s-4);
  align-items: stretch;
}

.field-actor-map__center,
.field-actor-map__ring article,
.field-finding,
.field-persona,
.field-audit-card,
.field-source-card,
.field-insight-card {
  background: var(--paper);
  border: 1px solid var(--hairline);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-card);
}

.field-actor-map__center {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 320px;
  padding: clamp(1.5rem, 3vw, 2.25rem);
  background: var(--ink);
  color: var(--cream);
}

.field-actor-map__center h3,
.field-actor-map__center p,
.field-actor-map__center .mono-label {
  color: var(--cream);
}

.field-actor-map__center h3 {
  margin: var(--s-4) 0;
  font-size: clamp(2rem, 4vw, 3.5rem);
}

.field-actor-map__ring {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--s-3);
}

.field-actor-map__ring article {
  min-height: 150px;
  padding: var(--s-5);
}

.field-actor-map__ring strong {
  display: block;
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: var(--fs-body-lg);
}

.field-actor-map__ring span {
  display: block;
  margin-top: var(--s-3);
  color: var(--charcoal);
}

.field-findings {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--s-4);
}

.field-finding {
  min-height: 330px;
  padding: var(--s-5);
}

.field-finding__number {
  display: block;
  font-family: var(--font-emphasis);
  font-size: clamp(2.6rem, 5vw, 4.5rem);
  font-style: italic;
  line-height: 0.85;
  color: var(--coral);
}

.field-finding h3 {
  margin-top: var(--s-4);
  font-size: clamp(1.35rem, 2vw, 1.85rem);
}

.field-finding p {
  margin-top: var(--s-4);
  color: var(--charcoal);
}

.field-persona-grid,
.field-audit-list,
.field-source-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--s-4);
}

.field-persona,
.field-audit-card,
.field-source-card {
  min-height: 260px;
  padding: var(--s-5);
}

.field-persona .mono-label,
.field-audit-card .mono-label,
.field-source-card .mono-label {
  color: var(--coral);
}

.field-persona h3,
.field-source-card h3 {
  margin-top: var(--s-4);
  font-size: clamp(1.35rem, 2vw, 1.85rem);
}

.field-persona p,
.field-audit-card p,
.field-source-card p {
  margin-top: var(--s-4);
  color: var(--charcoal);
}

.field-explorer {
  border-top: 1px solid var(--hairline-strong);
  border-bottom: 1px solid var(--hairline-strong);
}

.field-explorer__head {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(260px, 0.3fr);
  gap: clamp(1.5rem, 5vw, 4rem);
  align-items: end;
  margin-bottom: var(--s-6);
}

.field-explorer__head h2 {
  margin-top: var(--s-4);
}

.field-explorer__note {
  padding: var(--s-5);
  background: var(--butter-tint);
  border: 1px solid rgba(217, 184, 62, 0.28);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-stick);
  transform: rotate(-1deg);
}

.field-explorer__note p {
  margin-top: var(--s-3);
  color: var(--ink);
}

.field-explorer__controls {
  display: grid;
  gap: var(--s-4);
  padding: var(--s-5);
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
}

.field-filter-group {
  display: grid;
  grid-template-columns: 90px minmax(0, 1fr);
  gap: var(--s-3);
  align-items: start;
}

.field-filter-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
}

.field-filter-button {
  min-height: 36px;
  padding: 8px 12px;
  border: 1px solid var(--hairline);
  border-radius: var(--r-pill);
  background: var(--paper);
  color: var(--charcoal);
  font-size: var(--fs-caption);
  font-weight: 600;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}

.field-filter-button:hover,
.field-filter-button.is-active {
  background: var(--ink);
  color: var(--cream);
  border-color: var(--ink);
}

.field-insight-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--s-4);
  margin-top: var(--s-5);
}

.field-insight-card {
  display: flex;
  flex-direction: column;
  min-height: 330px;
  padding: var(--s-5);
}

.field-insight-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
}

.field-insight-card__meta span {
  padding: 5px 9px;
  border-radius: var(--r-pill);
  background: var(--lavender-tint);
  color: var(--lavender-deep);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
}

.field-insight-card h3 {
  margin-top: var(--s-4);
  font-size: clamp(1.45rem, 2.2vw, 2rem);
}

.field-insight-card p {
  margin-top: var(--s-4);
  color: var(--charcoal);
}

.field-insight-card dl {
  display: grid;
  gap: var(--s-3);
  margin: auto 0 0;
  padding-top: var(--s-5);
}

.field-insight-card div {
  min-width: 0;
}

.field-insight-card dt {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  color: var(--coral);
}

.field-insight-card dd {
  margin: 4px 0 0;
  color: var(--ink);
}

.field-tensions {
  display: grid;
  grid-template-columns: minmax(0, 0.42fr) minmax(0, 0.58fr);
  gap: clamp(1.5rem, 5vw, 4rem);
  padding: clamp(2rem, 5vw, 4rem);
  background: var(--ink);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-card);
}

.field-tensions h2,
.field-tensions li {
  color: var(--cream);
}

.field-tensions ul {
  display: grid;
  gap: var(--s-4);
  margin: 0;
  padding: 0;
  list-style: none;
}

.field-tensions li {
  position: relative;
  padding-left: 22px;
}

.field-tensions li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--butter);
}

/* Venture studio: field signal to business OS */
.studio-page .p4-hero h1 {
  max-width: 11ch;
  font-size: clamp(2.95rem, 5.6vw, 4.8rem);
}

.studio-hero {
  min-height: clamp(620px, 88vh, 780px);
  padding-top: clamp(84px, 8vw, 120px);
  padding-bottom: clamp(48px, 7vw, 80px);
}

.studio-hero .p4-actions {
  margin-top: var(--s-4);
}

.studio-hero__note {
  margin-top: var(--s-4);
  padding-left: var(--s-4);
  border-left: 2px solid var(--coral);
  color: var(--ink);
}

.studio-board {
  position: relative;
  min-height: 520px;
}

.studio-board__path {
  position: absolute;
  inset: 7% 0 5%;
  width: 100%;
  height: 88%;
  pointer-events: none;
}

.studio-board__path path {
  fill: none;
  stroke: rgba(26, 26, 26, 0.18);
  stroke-width: 1.3;
  stroke-dasharray: 3 7;
}

.studio-board__card {
  position: absolute;
  width: min(240px, 44vw);
  padding: var(--s-5);
  background: var(--paper);
  border: 1px solid var(--hairline);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-card);
  z-index: 2;
}

.studio-board__card strong,
.studio-board__card small {
  display: block;
}

.studio-board__card strong {
  margin-top: var(--s-3);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: var(--fs-body-lg);
  line-height: 1.2;
}

.studio-board__card small {
  margin-top: var(--s-2);
  color: var(--mute);
}

.studio-board__card--research {
  left: 0;
  top: 6%;
  transform: rotate(-3deg);
  background: var(--lavender-tint);
  border-color: rgba(157, 137, 196, 0.24);
}

.studio-board__card--expert {
  right: 2%;
  top: 22%;
  transform: rotate(3deg);
  background: var(--butter-tint);
  border-color: rgba(217, 184, 62, 0.28);
}

.studio-board__card--test {
  left: 0;
  bottom: 18%;
  transform: rotate(2deg);
  background: var(--mint-tint);
  border-color: rgba(111, 176, 136, 0.22);
}

.studio-board__card--venture {
  right: -1%;
  bottom: -7%;
  transform: rotate(-2deg);
}

.studio-board__stamp {
  position: absolute;
  left: 36%;
  top: 43%;
  width: 130px;
  transform: rotate(-12deg);
  opacity: 0.68;
  z-index: 1;
}

.studio-plain {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(280px, 0.48fr);
  gap: clamp(1.5rem, 5vw, 4rem);
  align-items: end;
  padding: clamp(2rem, 5vw, 4rem);
  background: var(--paper);
  border: 1px solid var(--hairline);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-card);
}

.studio-plain h2 {
  margin-top: var(--s-4);
  font-size: clamp(2rem, 4.6vw, 4.2rem);
  max-width: 14ch;
}

.studio-plain p:last-child {
  color: var(--charcoal);
}

.studio-source-grid,
.studio-leverage-grid,
.studio-looking__grid,
.studio-proof-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--s-4);
}

.studio-source-card {
  position: relative;
  min-height: 420px;
  padding: var(--s-5);
  background: var(--paper);
  border: 1px solid var(--hairline);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-card);
}

.studio-source-card:nth-child(1) { transform: rotate(-1.4deg); }
.studio-source-card:nth-child(2) { transform: rotate(1.1deg); margin-top: var(--s-6); }
.studio-source-card:nth-child(3) { transform: rotate(-0.6deg); margin-top: var(--s-2); }

.studio-source-card::before {
  content: "";
  position: absolute;
  left: var(--s-5);
  right: var(--s-5);
  top: 0;
  height: 5px;
  background: var(--accent-color, var(--coral));
  border-radius: 0 0 var(--r-sm) var(--r-sm);
}

.studio-source-card__number {
  display: block;
  font-family: var(--font-emphasis);
  font-size: clamp(3rem, 6vw, 5.2rem);
  font-style: italic;
  line-height: 0.85;
  color: var(--accent-color, var(--coral));
}

.studio-source-card h3 {
  margin-top: var(--s-5);
  font-size: clamp(1.45rem, 2.3vw, 2.1rem);
}

.studio-source-card p {
  margin-top: var(--s-4);
  color: var(--charcoal);
}

.studio-loop-list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: studio-loop;
  border-top: 1px solid var(--hairline-strong);
}

.studio-loop-list li {
  counter-increment: studio-loop;
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  gap: var(--s-5);
  padding: var(--s-5) 0;
  border-bottom: 1px solid var(--hairline);
}

.studio-loop-list li::before {
  content: counter(studio-loop, decimal-leading-zero);
  font-family: var(--font-emphasis);
  font-style: italic;
  font-size: clamp(2.7rem, 5vw, 4.4rem);
  line-height: 0.9;
  color: var(--coral);
}

.studio-loop-list strong {
  display: block;
  color: var(--ink);
  font-size: var(--fs-body-lg);
}

.studio-loop-list p {
  margin-top: var(--s-2);
  color: var(--charcoal);
}

.studio-loop-list span {
  display: block;
  margin-top: var(--s-3);
  color: var(--mute);
}

.studio-leverage-grid {
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.studio-leverage-card {
  min-height: 280px;
  padding: var(--s-5);
  background: var(--paper);
  border: 1px solid var(--hairline);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-card);
}

.studio-leverage-card:nth-child(1),
.studio-leverage-card:nth-child(2),
.studio-leverage-card:nth-child(3) {
  grid-column: span 2;
}

.studio-leverage-card:nth-child(4),
.studio-leverage-card:nth-child(5),
.studio-leverage-card:nth-child(6) {
  grid-column: span 2;
}

.studio-leverage-card span {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 5px 10px;
  background: var(--coral-tint);
  border-radius: var(--r-pill);
  color: var(--coral-deep);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
}

.studio-leverage-card:nth-child(2) span,
.studio-leverage-card:nth-child(5) span {
  background: var(--sky-tint);
  color: var(--sky-deep);
}

.studio-leverage-card:nth-child(3) span,
.studio-leverage-card:nth-child(6) span {
  background: var(--mint-tint);
  color: var(--mint-deep);
}

.studio-leverage-card h3 {
  margin-top: var(--s-4);
  font-size: clamp(1.3rem, 2vw, 1.85rem);
}

.studio-leverage-card p {
  margin-top: var(--s-4);
  color: var(--charcoal);
}

.studio-forms {
  display: grid;
  grid-template-columns: minmax(260px, 0.36fr) minmax(0, 0.64fr);
  gap: clamp(1.5rem, 5vw, 4rem);
  padding: clamp(2rem, 5vw, 4rem);
  background: var(--ink);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-card);
}

.studio-forms h2,
.studio-forms h3,
.studio-forms p {
  color: var(--cream);
}

.studio-form-list {
  display: grid;
  gap: var(--s-4);
}

.studio-form-list article {
  padding-bottom: var(--s-4);
  border-bottom: 1px solid rgba(250, 247, 242, 0.16);
}

.studio-form-list article:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.studio-form-list h3 {
  margin-top: var(--s-2);
  font-size: clamp(1.3rem, 2vw, 1.8rem);
}

.studio-form-list p {
  margin-top: var(--s-3);
  color: rgba(250, 247, 242, 0.76);
}

.studio-looking {
  padding: clamp(2rem, 5vw, 4rem);
  background: var(--butter-tint);
  border: 1px solid rgba(217, 184, 62, 0.28);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-stick);
}

.studio-looking h2 {
  margin-top: var(--s-4);
  max-width: 16ch;
}

.studio-looking__grid {
  margin-top: var(--s-7);
}

.studio-looking__grid article {
  padding: var(--s-5);
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid var(--hairline);
  border-radius: var(--r-md);
}

.studio-looking__grid h3 {
  font-size: clamp(1.3rem, 2vw, 1.8rem);
}

.studio-looking__grid p {
  margin-top: var(--s-4);
  color: var(--charcoal);
}

.studio-looking__grid a {
  display: inline-flex;
  margin-top: var(--s-5);
  font-weight: 700;
  color: var(--ink);
}

.studio-proof-grid .p4-published-card {
  min-height: 340px;
}

/* Lab: bubble cards */
.p4-lab-dock {
  display: grid;
  gap: var(--s-4);
}

.p4-dock-row {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  padding: var(--s-4);
  background: rgba(255,255,255,0.62);
  border: 1px solid var(--hairline);
  border-radius: var(--r-pill);
  box-shadow: var(--shadow-faint);
  transform: rotate(var(--tilt, 0deg));
}

.p4-tool-grid {
  gap: clamp(1.25rem, 3vw, 2.75rem);
}

.p4-tool-card {
  min-height: 340px;
}

.p4-tool-card:nth-child(1) { transform: rotate(-2deg); }
.p4-tool-card:nth-child(2) { transform: rotate(1.6deg); margin-top: var(--s-7); }
.p4-tool-card:nth-child(3) { transform: rotate(-0.8deg); margin-top: var(--s-3); }
.p4-tool-card:nth-child(4) { transform: rotate(1.1deg); margin-top: var(--s-5); }

.p4-tool-card .bubble {
  width: 68px;
  height: 68px;
  font-size: 30px;
}

/* Writing: pinned + divider feed */
.p4-writing-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.42fr) minmax(0, 1fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
}

.p4-pin-card {
  min-height: 360px;
  transform: rotate(-1.2deg);
  background: var(--coral-tint);
  border-color: rgba(201, 90, 53, 0.24);
}

.p4-pin-card .bubble {
  width: 64px;
  height: 64px;
  font-size: 28px;
  background: var(--paper);
}

.p4-pin-card h2 {
  margin-top: var(--s-4);
  font-size: clamp(2rem, 3.8vw, 3.1rem);
  line-height: 0.95;
}

.p4-feed {
  border-top: 1px solid var(--hairline-strong);
}

.p4-feed-row {
  display: grid;
  grid-template-columns: 120px 130px minmax(0, 1fr);
  gap: var(--s-5);
  align-items: baseline;
  padding: var(--s-5) 0;
  border-bottom: 1px solid var(--hairline);
}

.p4-feed-row h3 {
  font-family: var(--font-ui);
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  font-weight: 600;
}

.p4-feed-row p {
  margin-top: var(--s-2);
  color: var(--charcoal);
}

@media (max-width: 980px) {
  .p4-hero--split,
  .p4-section__head,
  .p4-cta-strip,
  .p4-writing-layout,
  .studio-plain,
  .studio-forms,
  .field-hero__grid,
  .field-actor-map,
  .field-explorer__head,
  .field-tensions {
    grid-template-columns: 1fr;
  }

  .p4-work-rail {
    min-height: 260px;
  }

  .p4-case-grid,
  .p4-published-grid,
  .p4-tool-grid,
  .p4-method-note,
  .p4-finding__grid,
  .p4-question-list,
  .studio-source-grid,
  .studio-looking__grid,
  .studio-proof-grid,
  .field-stat-grid,
  .field-actor-map__ring,
  .field-findings,
  .field-persona-grid,
  .field-audit-list,
  .field-source-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .p4-work-note {
    right: 0;
    top: 20px;
  }

  .p4-work-stamp {
    left: 0;
    bottom: 0;
    width: 116px;
  }

  .studio-board {
    min-height: 430px;
  }

  .studio-board__stamp {
    left: 42%;
    width: 108px;
  }

  .studio-leverage-card:nth-child(n) {
    grid-column: span 3;
  }
}

@media (max-width: 720px) {
  .p4-hero {
    padding-top: 150px;
  }

  .p4-hero h1 {
    max-width: 100%;
  }

  .p4-case-grid,
  .p4-published-grid,
  .p4-tool-grid,
  .p4-method-note,
  .p4-finding__grid,
  .p4-question-list,
  .studio-source-grid,
  .studio-leverage-grid,
  .studio-looking__grid,
  .studio-proof-grid,
  .field-stat-grid,
  .field-actor-map__ring,
  .field-findings,
  .field-persona-grid,
  .field-audit-list,
  .field-source-grid,
  .field-insight-grid {
    grid-template-columns: 1fr;
  }

  .p4-thread,
  .p4-method-list li,
  .p4-finding,
  .p4-feed-row,
  .studio-loop-list li,
  .field-filter-group {
    grid-template-columns: 1fr;
    gap: var(--s-3);
  }

  .p4-case-card:nth-child(n),
  .p4-published-card:nth-child(n),
  .p4-tool-card:nth-child(n),
  .studio-source-card:nth-child(n) {
    margin-top: 0;
    transform: none;
  }

  .p4-cta-strip {
    border-radius: var(--r-lg);
  }

  .studio-board {
    min-height: auto;
    display: grid;
    gap: var(--s-3);
  }

  .studio-board__path,
  .studio-board__stamp {
    display: none;
  }

  .studio-board__card {
    position: static;
    width: auto;
    transform: none;
  }

  .studio-plain,
  .studio-forms,
  .studio-looking {
    border-radius: var(--r-lg);
  }

  .studio-source-card,
  .studio-leverage-card,
  .studio-looking__grid article,
  .studio-proof-grid .p4-published-card {
    min-height: auto;
  }

  .studio-leverage-card:nth-child(n) {
    grid-column: auto;
  }

  .field-thesis-card {
    transform: none;
  }

  .field-actor-map__center,
  .field-finding,
  .field-persona,
  .field-audit-card,
  .field-source-card,
  .field-insight-card {
    min-height: auto;
  }

  .field-tensions {
    border-radius: var(--r-lg);
  }
}