.project-hero {
  background:
    linear-gradient(90deg, rgba(8,20,33,.025) 1px, transparent 1px),
    linear-gradient(rgba(8,20,33,.025) 1px, transparent 1px),
    var(--paper);
  background-size: 44px 44px;
  border-bottom: 1px solid var(--line);
}

.project-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, .55fr);
  gap: 80px;
  align-items: end;
  padding-top: 96px;
  padding-bottom: 88px;
}

.project-id {
  margin: 0 0 20px;
  color: var(--signal);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.project-hero h1 {
  max-width: 900px;
  font-size: clamp(48px, 6vw, 78px);
}

.project-summary {
  max-width: 820px;
  margin-bottom: 0;
  color: #42515d;
  font-size: clamp(19px, 2vw, 23px);
  line-height: 1.5;
}

.project-meta {
  border-top: 4px solid var(--signal);
  background: var(--navy);
  color: var(--white);
  padding: 30px;
}

.meta-row {
  padding: 18px 0;
  border-bottom: 1px solid rgba(255,255,255,.14);
}

.meta-row:first-child { padding-top: 0; }
.meta-row:last-child { padding-bottom: 0; border-bottom: 0; }
.meta-label {
  display: block;
  margin-bottom: 6px;
  color: var(--cyan);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .13em;
  text-transform: uppercase;
}
.meta-value { font-size: 16px; font-weight: 650; }
.status-active { display: inline-flex; align-items: center; gap: 8px; }
.status-active::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--signal);
}

.project-subnav {
  background: var(--white);
  border-bottom: 1px solid var(--line);
}
.project-subnav-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 26px;
  padding-top: 18px;
  padding-bottom: 18px;
}
.project-subnav a {
  color: #44515c;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}
.project-subnav a:hover { color: var(--signal); }

.project-section { padding: 92px 0; }
.project-section-muted { background: var(--paper); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.project-section-dark { background: var(--navy); color: var(--white); }
.project-section-dark h2, .project-section-dark h3 { color: var(--white); }

.project-layout {
  display: grid;
  grid-template-columns: minmax(220px, .42fr) minmax(0, 1fr);
  gap: 92px;
  align-items: start;
}

.project-section-label {
  margin: 4px 0 0;
  color: var(--signal);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .13em;
  text-transform: uppercase;
}
.project-section-dark .project-section-label { color: var(--cyan); }

.project-content { max-width: 820px; }
.project-content h2 {
  margin: 0 0 30px;
  font-size: clamp(34px, 4vw, 54px);
}
.project-content h3 {
  margin: 34px 0 12px;
  color: var(--navy);
  font-size: 24px;
  line-height: 1.2;
}
.project-content p {
  margin-bottom: 22px;
  color: #46535f;
  font-size: 18px;
  line-height: 1.65;
}
.project-section-dark .project-content p { color: #bdc8d0; }

.research-question {
  margin: 0;
  padding: 32px 34px;
  border-left: 5px solid var(--signal);
  background: var(--white);
  color: var(--navy);
  font-size: clamp(25px, 3vw, 36px);
  line-height: 1.3;
  font-weight: 650;
}

.hypothesis-list {
  display: grid;
  gap: 0;
  border-top: 1px solid rgba(255,255,255,.22);
}
.hypothesis-item {
  display: grid;
  grid-template-columns: 74px 1fr;
  gap: 28px;
  padding: 30px 0;
  border-bottom: 1px solid rgba(255,255,255,.22);
}
.hypothesis-code {
  color: var(--cyan);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .1em;
}
.hypothesis-item p { margin: 0; }

.conditions-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.condition-card {
  min-height: 210px;
  padding: 30px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--white);
}
.condition-card h3 { margin: 0 0 12px; font-size: 23px; }
.condition-card p { margin: 0; font-size: 16px; }
.condition-code {
  display: block;
  margin-bottom: 34px;
  color: var(--signal);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .12em;
}

.method-list { counter-reset: method; border-top: 1px solid var(--line); }
.method-step {
  counter-increment: method;
  display: grid;
  grid-template-columns: 62px 1fr;
  gap: 28px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}
.method-step::before {
  content: "0" counter(method);
  color: var(--signal);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .12em;
}
.method-step h3 { margin: 0 0 8px; font-size: 22px; }
.method-step p { margin: 0; font-size: 17px; }

.measure-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 34px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}
.measure-list li {
  position: relative;
  padding-left: 20px;
  color: #46535f;
  font-size: 16px;
}
.measure-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .7em;
  width: 7px;
  height: 2px;
  background: var(--signal);
}

.outputs-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}
.output-card {
  padding: 28px;
  background: rgba(255,255,255,.035);
  border: 1px solid rgba(255,255,255,.18);
}
.output-card span {
  display: block;
  margin-bottom: 30px;
  color: var(--cyan);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .12em;
}
.output-card h3 { margin: 0 0 12px; font-size: 24px; }
.output-card p { margin: 0; font-size: 16px; }

.status-table { border-top: 1px solid var(--line); }
.status-row {
  display: grid;
  grid-template-columns: 1.2fr .6fr 1.6fr;
  gap: 30px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
}
.status-row strong { color: var(--navy); }
.status-tag {
  display: inline-flex;
  width: fit-content;
  padding: 5px 9px;
  background: var(--soft);
  color: #4e5b65;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.status-tag.active { background: #fdebed; color: #9e2630; }
.status-row p { margin: 0; font-size: 15px; }

.project-contact {
  background: var(--signal);
  color: var(--white);
  padding: 78px 0;
}
.project-contact-grid {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 80px;
  align-items: center;
}
.project-contact h2 { color: var(--white); margin-bottom: 0; }
.project-contact p { margin-bottom: 22px; font-size: 18px; }

.back-link {
  display: inline-block;
  margin-bottom: 28px;
  color: #53616d;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}
.back-link:hover { color: var(--signal); }

@media (max-width: 900px) {
  .project-hero-grid,
  .project-layout,
  .project-contact-grid { grid-template-columns: 1fr; gap: 42px; }
  .project-hero-grid { padding-top: 68px; padding-bottom: 64px; }
  .project-section { padding: 72px 0; }
  .conditions-grid,
  .outputs-grid { grid-template-columns: 1fr; }
  .status-row { grid-template-columns: 1fr; gap: 9px; }
}

@media (max-width: 520px) {
  .project-hero h1 { font-size: 46px; }
  .project-subnav-inner { gap: 14px 20px; }
  .hypothesis-item,
  .method-step { grid-template-columns: 1fr; gap: 10px; }
  .measure-list { grid-template-columns: 1fr; }
  .research-question { padding: 26px; font-size: 25px; }
}