/* ============================================================
   HASANI. Portfolio — stylesheet
   Rebuilt from design_handoff_portfolio (.dc.html reference files)
   Design direction: Industrial Precision × Editorial Technology
   ============================================================ */

:root {
  --bg-main: #F3F2ED;
  --bg-dark: #181B1D;
  --bg-dark-secondary: #24282B;
  --text-primary: #121416;
  --text-secondary: #6E7377;
  --text-on-dark: #F3F2ED;
  --text-on-dark-secondary: #9BA0A3;
  --border-light: #D5D4CF;
  --border-dark: #34383B;
  --accent: #2C63FF;
  --placeholder-a: #E4E2DA;
  --placeholder-b: #EDECE6;
  --placeholder-caption: #8A8D8F;
  --chip-dark-bg: #2C2F31;

  --font-display: 'Inter Tight', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --container-max: 1360px;
  --container-pad: 64px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  padding: 0;
  background: var(--bg-main);
  color: var(--text-primary);
  font-family: var(--font-body);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--text-primary); }
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

img { max-width: 100%; display: block; }

.wrap {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}

.mono {
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 20px;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 44px;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0 0 24px;
  max-width: 800px;
}

.section-intro {
  font-size: 17px;
  line-height: 1.65;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 0 48px;
  text-align: justify;
  hyphens: auto;
}

.tag {
  display: inline-flex;
  padding: 5px 11px;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.tag--sm { padding: 4px 9px; font-size: 10px; }

.tag-row { display: flex; gap: 8px; flex-wrap: wrap; }

.btn {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  border-radius: 4px;
  padding: 16px 26px;
  display: inline-block;
  text-transform: none;
  border: 1px solid transparent;
}

.btn--primary { background: var(--text-primary); color: var(--bg-main); }
.btn--primary:hover { background: #000; color: var(--bg-main); }
.btn--outline { border-color: var(--text-primary); color: var(--text-primary); }
.btn--outline:hover { background: var(--text-primary); color: var(--bg-main); }
.btn--disabled {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  opacity: 0.55;
  cursor: not-allowed;
  padding: 16px 4px;
}

/* ---------- Nav ---------- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding: 0 var(--container-pad);
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background .2s, border-color .2s;
}

.site-nav.is-scrolled {
  background: var(--bg-main);
  border-bottom-color: var(--border-light);
}

.site-nav__mark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.site-nav__links { display: flex; gap: 36px; }
.site-nav__links a { font-size: 14px; font-weight: 500; color: var(--text-primary); }
.site-nav__links a:hover { color: var(--accent); }

.site-nav--simple {
  border-bottom: 1px solid var(--border-light);
  position: static;
  max-width: none;
}
.site-nav--simple .back-link {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
}
.site-nav--simple .back-link:hover { color: var(--accent); }

/* ---------- Hero ---------- */
.hero {
  padding: 96px var(--container-pad) 64px;
  min-height: calc(100vh - 72px);
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 64px;
  align-items: center;
  max-width: var(--container-max);
  margin: 0 auto;
}

.hero__meta {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  text-transform: uppercase;
  margin-bottom: 40px;
  padding-right: 24px;
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 80px;
  line-height: 1.04;
  letter-spacing: -0.02em;
  margin: 0 0 28px;
  color: var(--text-primary);
}

.hero p {
  font-size: 19px;
  line-height: 1.6;
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 0 40px;
}

.hero__ctas { display: flex; gap: 20px; align-items: center; }

.hero__diagram {
  position: relative;
  padding-left: 32px;
  border-left: 1px solid var(--border-light);
}

.hero__step {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  margin-bottom: 36px;
}
.hero__step:last-child { margin-bottom: 0; }

.hero__node {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--bg-main);
  border: 1px solid var(--text-primary);
  flex: none;
  margin-top: 2px;
}

.hero__step-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 4px;
}

.hero__step-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 19px;
  margin-bottom: 4px;
}

.hero__step-desc {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
}

.hero-footer-row {
  display: flex;
  justify-content: space-between;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad) 48px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  text-transform: uppercase;
}

/* ---------- Impact strip ---------- */
.impact {
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  padding: 56px var(--container-pad);
  max-width: var(--container-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
}

.impact__item { border-left: 1px solid var(--border-light); padding-left: 28px; }

.impact__value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 44px;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}

.impact__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  text-transform: uppercase;
  line-height: 1.5;
}

/* ---------- Generic section ---------- */
.section { padding: 128px var(--container-pad); max-width: var(--container-max); margin: 0 auto; }
.section--tight-top { padding-top: 0; }
.section--dark { background: var(--bg-dark); color: var(--text-on-dark); padding: 128px var(--container-pad); max-width: none; }
.section--dark .section-inner { max-width: var(--container-max); margin: 0 auto; }
.section--dark .eyebrow { color: var(--accent); }

/* ---------- Filter pills ---------- */
.filter-row { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 64px; }

.filter-pill {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  padding: 8px 14px;
  border-radius: 4px;
  cursor: pointer;
  text-transform: uppercase;
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-light);
  transition: background .15s, color .15s, border-color .15s;
}

.filter-pill.is-active {
  background: var(--text-primary);
  color: var(--bg-main);
  border-color: var(--text-primary);
}

.no-results {
  padding: 48px 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-secondary);
  display: none;
}
.no-results.is-visible { display: block; }

/* ---------- Placeholder image block ---------- */
.placeholder-img {
  background: repeating-linear-gradient(135deg, var(--placeholder-a), var(--placeholder-a) 10px, var(--placeholder-b) 10px, var(--placeholder-b) 20px);
  border-radius: 6px;
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
}
.placeholder-img span {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--placeholder-caption);
  text-transform: uppercase;
  text-align: center;
  padding: 0 16px;
}

/* ---------- Flagship projects ---------- */
.flagship-list { display: flex; flex-direction: column; gap: 96px; margin-bottom: 96px; }

.flagship-item {
  display: grid;
  gap: 48px;
  align-items: start;
  border-top: 1px solid var(--border-light);
  padding-top: 48px;
  grid-template-columns: 7fr 5fr;
}
.flagship-item[data-flip="true"] { grid-template-columns: 5fr 7fr; }
.flagship-item[data-flip="true"] .placeholder-img { order: 2; }
.flagship-item[data-flip="true"] .flagship-item__body { order: 1; }
.flagship-item[data-flip="false"] .placeholder-img { order: 1; }
.flagship-item[data-flip="false"] .flagship-item__body { order: 2; }
.flagship-item.is-hidden { display: none; }

.flagship-item__eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.flagship-item h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 38px;
  line-height: 1.1;
  margin: 0 0 12px;
}

.flagship-item p {
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-secondary);
  margin: 0 0 20px;
}

.flagship-item__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  text-transform: uppercase;
  margin-bottom: 20px;
}

.flagship-item .tag-row { margin-bottom: 28px; }

.flagship-item__link {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  font-weight: 500;
  border-bottom: 1px solid var(--text-primary);
  padding-bottom: 2px;
}
.flagship-item__link:hover { color: var(--accent); border-color: var(--accent); }

.flagship-item__status {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

/* ---------- Standard projects ---------- */
.standard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px 64px;
  margin-bottom: 96px;
}

.standard-item { border-top: 1px solid var(--border-light); padding-top: 28px; }
.standard-item.is-hidden { display: none; }

.standard-item__meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.standard-item h4 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 26px;
  line-height: 1.2;
  margin: 0 0 10px;
}

.standard-item p {
  font-size: 15px;
  line-height: 1.55;
  color: var(--text-secondary);
  margin: 0 0 18px;
}

.standard-item .tag-row { margin-bottom: 18px; gap: 7px; }

.standard-item__link {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

/* ---------- Archive ---------- */
.archive-list { border-top: 1px solid var(--border-light); }

.archive-row {
  display: grid;
  grid-template-columns: 80px 1fr 260px 30px;
  gap: 16px;
  align-items: center;
  padding: 18px 0;
  border-bottom: 1px solid var(--border-light);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--text-secondary);
}
.archive-row.is-hidden { display: none; }

.archive-row__title {
  color: var(--text-primary);
  text-transform: none;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
}
.archive-row__org { text-transform: uppercase; }
.archive-row__arrow { text-align: right; }

.archive-toggle {
  margin-top: 24px;
  background: none;
  border: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--accent);
  cursor: pointer;
  padding: 0;
}
.archive-toggle:hover { color: var(--text-primary); }
.archive-toggle.is-hidden { display: none; }

/* ---------- Philosophy (dark) ---------- */
.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
}

.philosophy-item { border-top: 1px solid var(--border-dark); padding-top: 28px; }

.philosophy-item__n {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 16px;
}

.philosophy-item h4 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 24px;
  margin: 0 0 20px;
}

.philosophy-item__list { display: flex; flex-direction: column; gap: 10px; }
.philosophy-item__list span { font-size: 14px; color: var(--text-on-dark-secondary); }

/* ---------- Experience timeline ---------- */
.timeline { display: flex; flex-direction: column; }

.timeline-row {
  display: grid;
  grid-template-columns: 22% 78%;
  gap: 32px;
  border-top: 1px solid var(--border-light);
  padding: 40px 0;
}

.timeline-row__period {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
}

.timeline-row h4 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 22px;
  margin: 0 0 4px;
}

.timeline-row__role { font-size: 15px; font-weight: 500; color: var(--accent); margin-bottom: 4px; }
.timeline-row__location { font-family: var(--font-mono); font-size: 12px; color: var(--text-secondary); margin-bottom: 16px; }
.timeline-row__summary { font-size: 15px; line-height: 1.6; color: var(--text-secondary); max-width: 640px; margin: 0 0 16px; }
.timeline-row__focus { display: flex; flex-direction: column; gap: 6px; margin-bottom: 18px; }
.timeline-row__focus span { font-size: 14px; color: var(--text-primary); }
.timeline-row .tag-row { gap: 7px; }

/* ---------- Capabilities (dark) ---------- */
.tech-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px 64px; }

.tech-cat { border-top: 1px solid var(--border-dark); padding-top: 24px; }

.tech-cat h4 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  margin: 0 0 18px;
}

.tech-logos { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 18px; }

.tech-logo { display: flex; flex-direction: column; align-items: center; gap: 6px; width: 60px; }

.tech-logo__chip {
  width: 38px;
  height: 38px;
  background: var(--bg-main);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.tech-logo__chip img {
  width: 20px;
  height: 20px;
  opacity: 0.9;
  transition: transform .2s, opacity .2s;
}
.tech-logo:hover .tech-logo__chip img { transform: scale(1.12); opacity: 1; }

.tech-logo__chip--nologo {
  background: var(--chip-dark-bg);
  border: 1px solid var(--border-dark);
}
.tech-logo__chip--nologo span {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--text-on-dark-secondary);
  text-align: center;
  padding: 0 2px;
}

.tech-logo__name {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--text-on-dark-secondary);
  text-align: center;
  line-height: 1.3;
}

.tech-caps { display: flex; gap: 7px; flex-wrap: wrap; }
.tech-caps span {
  padding: 5px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.03em;
  color: var(--text-on-dark-secondary);
}

/* image-drop placeholder for MATLAB / Simulink (no icon available) */
.tech-logo__slot {
  width: 38px;
  height: 38px;
  background: var(--bg-main);
  border-radius: 4px;
  border: 1px dashed var(--border-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 7px;
  color: var(--text-secondary);
  text-align: center;
  cursor: default;
}

/* ---------- Awards ---------- */
.award-featured {
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  padding: 40px 0;
  display: grid;
  grid-template-columns: 100px 1fr 200px;
  gap: 24px;
  align-items: start;
  margin-bottom: 48px;
}
.award-featured__year { font-family: var(--font-mono); font-size: 13px; color: var(--accent); }
.award-featured h4 { font-family: var(--font-display); font-weight: 600; font-size: 26px; margin: 0 0 10px; }
.award-featured__meta { font-size: 14px; color: var(--text-secondary); margin-bottom: 14px; }

.award-row {
  display: grid;
  grid-template-columns: 80px 1fr 220px;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border-light);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
}
.award-row__title { color: var(--text-primary); text-transform: none; font-family: var(--font-body); font-size: 14px; font-weight: 500; }

/* ---------- IP ---------- */
.ip-summary { display: flex; gap: 64px; margin-bottom: 56px; flex-wrap: wrap; }
.ip-summary__num { font-family: var(--font-display); font-weight: 700; font-size: 36px; }
.ip-summary__label { font-family: var(--font-mono); font-size: 11px; color: var(--text-secondary); text-transform: uppercase; }

.ip-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px 40px; }

.ip-card { border: 1px solid var(--border-light); border-radius: 6px; padding: 24px; }
.ip-card__head {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  text-transform: uppercase;
  margin-bottom: 16px;
}
.ip-card__head span.type { color: var(--accent); }
.ip-card h4 { font-family: var(--font-display); font-weight: 600; font-size: 18px; line-height: 1.3; margin: 0 0 18px; }
.ip-card__foot { font-family: var(--font-mono); font-size: 11px; color: var(--text-secondary); display: flex; justify-content: space-between; }

/* ---------- Publications ---------- */
.publication { border-top: 1px solid var(--border-light); padding: 32px 0; }
.publication__meta { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.05em; color: var(--text-secondary); text-transform: uppercase; margin-bottom: 12px; }
.publication h4 { font-family: var(--font-display); font-weight: 600; font-size: 22px; line-height: 1.3; margin: 0 0 10px; max-width: 820px; }
.publication__journal { font-size: 14px; color: var(--text-secondary); margin-bottom: 12px; }
.publication__domain { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.04em; color: var(--text-secondary); text-transform: uppercase; }

/* ---------- Leadership ---------- */
.leadership-featured {
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  padding: 40px 0;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 24px;
  margin-bottom: 8px;
}
.leadership-featured__period { font-family: var(--font-mono); font-size: 13px; color: var(--text-secondary); }
.leadership-featured h4 { font-family: var(--font-display); font-weight: 600; font-size: 24px; margin: 0 0 4px; }
.leadership-featured__role { font-size: 15px; color: var(--accent); font-weight: 500; margin-bottom: 16px; }
.leadership-featured__contributions { display: flex; flex-direction: column; gap: 8px; margin-bottom: 16px; }
.leadership-featured__contributions span { font-size: 14px; line-height: 1.5; color: var(--text-primary); }

.leadership-row {
  display: grid;
  grid-template-columns: 220px 1fr 200px;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--border-light);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
}
.leadership-row__org { color: var(--text-primary); text-transform: none; font-family: var(--font-body); font-size: 14px; font-weight: 500; }

/* ---------- Education ---------- */
.education-row {
  border-top: 1px solid var(--border-light);
  padding-top: 32px;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 24px;
}
.education-row__meta { font-family: var(--font-mono); font-size: 13px; color: var(--text-secondary); }
.education-row h4 { font-family: var(--font-display); font-weight: 600; font-size: 24px; margin: 0 0 6px; }
.education-row__degree { font-size: 15px; color: var(--text-secondary); margin-bottom: 16px; }
.education-row__list { display: flex; flex-direction: column; gap: 6px; }
.education-row__list span { font-size: 14px; color: var(--text-primary); }

/* ---------- Scholarships / Certs ---------- */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; }
.simple-entry { border-top: 1px solid var(--border-light); padding: 20px 0; }
.simple-entry__year { font-family: var(--font-mono); font-size: 12px; color: var(--text-secondary); margin-bottom: 6px; }
.simple-entry__title { font-size: 16px; font-weight: 500; margin-bottom: 2px; }
.simple-entry__detail { font-size: 13px; color: var(--text-secondary); }

/* ---------- About ---------- */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; }
.about-bio { font-size: 16px; line-height: 1.7; color: #3A3D3F; display: flex; flex-direction: column; gap: 18px; }
.about-bio p { margin: 0; text-align: justify; }
.about-approach { display: flex; flex-direction: column; gap: 24px; }
.about-approach__item { border-top: 1px solid var(--border-light); padding-top: 16px; }
.about-approach__item h5 { font-family: var(--font-display); font-weight: 600; font-size: 18px; margin: 0 0 6px; }
.about-approach__item p { font-size: 14px; color: var(--text-secondary); margin: 0; }

/* ---------- Industrial focus (dark) ---------- */
.wordmarks { display: flex; flex-wrap: wrap; gap: 16px 40px; margin-bottom: 64px; }
.wordmarks span { font-family: var(--font-display); font-weight: 700; font-size: 32px; color: var(--border-dark); }

.industrial-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.industrial-item { border-top: 1px solid var(--border-dark); padding-top: 20px; }
.industrial-item h4 { font-family: var(--font-display); font-weight: 600; font-size: 17px; margin: 0 0 14px; }
.industrial-item__list { display: flex; flex-direction: column; gap: 8px; }
.industrial-item__list span { font-size: 13px; color: var(--text-on-dark-secondary); }

/* ---------- Contact ---------- */
.contact h2 { font-size: 56px; }
.contact-ctas { display: flex; gap: 16px; margin-bottom: 56px; flex-wrap: wrap; }
.contact-details { display: flex; gap: 64px; flex-wrap: wrap; font-family: var(--font-mono); font-size: 13px; color: var(--text-secondary); }
.contact-details__label { margin-bottom: 6px; }
.contact-details__value { color: var(--text-primary); }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border-light);
  padding: 48px var(--container-pad);
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.site-footer__name { font-family: var(--font-display); font-weight: 700; font-size: 16px; margin-bottom: 4px; }
.site-footer__tagline, .site-footer__loc {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.site-footer--simple {
  display: flex;
  justify-content: space-between;
  max-width: 1200px;
}
.site-footer--simple a { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.05em; color: var(--text-primary); }
.site-footer--simple a:hover { color: var(--accent); }

/* ---------- Case study page ---------- */
.cs-header { padding: 96px var(--container-pad) 64px; max-width: 1200px; margin: 0 auto; }
.cs-header__eyebrow { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.08em; color: var(--accent); text-transform: uppercase; margin-bottom: 24px; }
.cs-header h1 { font-family: var(--font-display); font-weight: 700; line-height: 1.08; letter-spacing: -0.01em; margin: 0 0 16px; max-width: 900px; }
.cs-header__sub { font-size: 19px; line-height: 1.5; color: var(--text-secondary); max-width: 760px; margin: 0 0 40px; }

.cs-meta-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  padding: 28px 0;
  margin-bottom: 32px;
}
.cs-meta-grid__label { font-family: var(--font-mono); font-size: 11px; color: var(--text-secondary); text-transform: uppercase; margin-bottom: 6px; }
.cs-meta-grid__value { font-size: 15px; font-weight: 500; }

.cs-hero-image {
  max-width: 1200px;
  margin: 0 auto 96px;
  padding: 0 var(--container-pad);
}
.cs-hero-image .placeholder-img { aspect-ratio: 16/7; }

.cs-main {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 var(--container-pad) 128px;
  display: flex;
  flex-direction: column;
  gap: 72px;
}

.cs-section__eyebrow { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.06em; color: var(--accent); margin-bottom: 16px; }
.cs-section p { font-size: 16px; line-height: 1.6; color: var(--text-primary); margin: 0; }
.cs-section p.tbd { font-size: 16px; line-height: 1.55; color: var(--text-secondary); font-style: italic; }

.cs-architecture { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.04em; color: var(--text-secondary); text-transform: uppercase; }
.cs-architecture span.node { padding: 10px 14px; border: 1px solid var(--border-light); border-radius: 4px; }
.cs-architecture-note { font-size: 13px; color: var(--text-secondary); margin: 16px 0 0; font-style: italic; }

.cs-evidence-card { border: 1px solid var(--border-light); border-radius: 6px; padding: 20px; }
.cs-evidence-card__title { font-size: 15px; font-weight: 500; margin-bottom: 6px; }
.cs-evidence-card__detail { font-size: 15px; color: var(--text-primary); margin-bottom: 4px; }
.cs-evidence-card__source { font-size: 13px; color: var(--text-secondary); }

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  :root { --container-pad: 32px; }
  .hero { grid-template-columns: 1fr; gap: 40px; }
  .hero h1 { font-size: 56px; }
  .impact { grid-template-columns: repeat(2, 1fr); gap: 32px 24px; }
  .impact__item:nth-child(odd) { border-left: none; padding-left: 0; }
  .site-nav__links { display: none; }
  .flagship-item, .flagship-item[data-flip="true"] { grid-template-columns: 1fr; }
  .flagship-item .placeholder-img,
  .flagship-item[data-flip="true"] .placeholder-img { order: 1 !important; }
  .flagship-item .flagship-item__body,
  .flagship-item[data-flip="true"] .flagship-item__body { order: 2 !important; }
  .standard-grid { grid-template-columns: 1fr; }
  .philosophy-grid { grid-template-columns: 1fr 1fr; }
  .tech-grid { grid-template-columns: 1fr; }
  .timeline-row { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .two-col { grid-template-columns: 1fr; }
  .industrial-grid { grid-template-columns: 1fr 1fr; }
  .archive-row { grid-template-columns: 60px 1fr 30px; }
  .archive-row__org { display: none; }
  .cs-meta-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .hero h1 { font-size: 40px; }
  .hero__meta { flex-direction: column; gap: 6px; }
  .impact { grid-template-columns: 1fr; }
  .impact__item { border-left: none; padding-left: 0; border-top: 1px solid var(--border-light); padding-top: 20px; }
  .philosophy-grid, .industrial-grid { grid-template-columns: 1fr; }
  .section-title, .contact h2 { font-size: 32px; }
  .award-featured, .leadership-featured, .education-row { grid-template-columns: 1fr; }
  .cs-meta-grid { grid-template-columns: 1fr 1fr; }
}