/* ============================================
   Portfolio — Technical Drawing / Blueprint
   Engineering grid, crosshairs, mono annotation.
   Self-contained: system fonts, no requests.
   ============================================ */

:root {
  --paper: #FAFAF7;
  --surface: #FFFFFF;
  --ink: #1A1A18;
  --ink-2: #5C5C57;
  --ink-3: #8A8A85;

  --green: #2D5A3D;
  --terra: #A8542E;

  --line: #C9C9C2;                 /* plate / hairline borders */
  --grid: rgba(26, 26, 24, 0.055); /* engineering paper */
  --grid-major: rgba(26, 26, 24, 0.10);
  --nav-bg: rgba(250, 250, 247, 0.95);

  --mono: ui-monospace, 'SF Mono', 'SFMono-Regular', Menlo, 'Cascadia Mono', 'Roboto Mono', monospace;
  --sans: -apple-system, 'Helvetica Neue', Arial, system-ui, sans-serif;

  --gutter: 2rem;
  --space-xs: 0.5rem; --space-sm: 1rem; --space-md: 1.5rem;
  --space-lg: 3rem; --space-xl: 5rem; --space-2xl: 8rem;
  --grid-size: 26px;
  --max-width: 82rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #141412; --surface: #1B1B19; --ink: #E8E8E3; --ink-2: #96968F; --ink-3: #5E5E58;
    --green: #5A9E6E; --terra: #C4693E;
    --line: #34342F; --grid: rgba(232, 232, 227, 0.045); --grid-major: rgba(232,232,227,0.085);
    --nav-bg: rgba(20, 20, 18, 0.95);
  }
}
[data-theme="dark"] {
  --paper: #141412; --surface: #1B1B19; --ink: #E8E8E3; --ink-2: #96968F; --ink-3: #5E5E58;
  --green: #5A9E6E; --terra: #C4693E;
  --line: #34342F; --grid: rgba(232,232,227,0.045); --grid-major: rgba(232,232,227,0.085); --nav-bg: rgba(20,20,18,0.95);
}
[data-theme="light"] {
  --paper: #FAFAF7; --surface: #FFFFFF; --ink: #1A1A18; --ink-2: #5C5C57; --ink-3: #8A8A85;
  --green: #2D5A3D; --terra: #A8542E;
  --line: #C9C9C2; --grid: rgba(26,26,24,0.055); --grid-major: rgba(26,26,24,0.10); --nav-bg: rgba(250,250,247,0.95);
}

/* --- Reset & base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body {
  font-family: var(--sans); color: var(--ink); background-color: var(--paper);
  line-height: 1.6; font-weight: 400; overflow-x: hidden; counter-reset: sec;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px),
    linear-gradient(var(--grid-major) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-major) 1px, transparent 1px);
  background-size:
    var(--grid-size) var(--grid-size),
    var(--grid-size) var(--grid-size),
    calc(var(--grid-size) * 5) calc(var(--grid-size) * 5),
    calc(var(--grid-size) * 5) calc(var(--grid-size) * 5);
  background-position: -1px -1px;
}
a { color: var(--green); text-decoration: none; transition: color .15s ease; }
a:hover { color: var(--terra); }
img { max-width: 100%; display: block; }

/* --- Typography --- */
h1, h2, h3 { font-family: var(--sans); font-weight: 700; letter-spacing: -0.02em; line-height: 1.02; }
h1 { font-size: clamp(2.6rem, 7vw, 5.2rem); }
h2 { font-size: clamp(1.7rem, 3.6vw, 2.7rem); }
h3 { font-size: 1.15rem; letter-spacing: -0.01em; }
p { max-width: 40rem; }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 var(--gutter); }
section { padding: var(--space-2xl) 0; }

/* --- Mono helpers --- */
.mono { font-family: var(--mono); }

/* --- Plate: a drawing with corner registration crosshairs --- */
.plate { position: relative; border: 1px solid var(--line); background: var(--surface); }
.plate::before, .plate::after {
  content: ""; position: absolute; width: 11px; height: 11px; pointer-events: none; z-index: 2;
  background:
    linear-gradient(var(--terra), var(--terra)) center / 1px 100% no-repeat,
    linear-gradient(var(--terra), var(--terra)) center / 100% 1px no-repeat;
}
.plate::before { top: -6px; left: -6px; }
.plate::after { bottom: -6px; right: -6px; }

/* --- Section label as sheet annotation --- */
.section-label {
  counter-increment: sec;
  font-family: var(--mono); font-size: 0.72rem; font-weight: 500; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--ink-2); margin-bottom: var(--space-lg);
  display: flex; align-items: center; gap: 0.85rem;
}
.section-label::before {
  content: "SEC " counter(sec, decimal-leading-zero); color: var(--terra);
  letter-spacing: 0.1em; flex-shrink: 0;
}
.section-label::after { content: ""; flex: 1; height: 1px; background: var(--line); }

/* --- Navigation --- */
.nav { position: fixed; inset: 0 0 auto 0; z-index: 100; background: var(--nav-bg); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--ink); }
.nav__inner { max-width: var(--max-width); margin: 0 auto; padding: 0 var(--gutter); display: flex; align-items: center; justify-content: space-between; height: 3.75rem; }
.nav__name { font-family: var(--mono); font-size: 0.85rem; font-weight: 600; letter-spacing: 0.02em; color: var(--ink); display: inline-flex; align-items: center; gap: 0.55rem; }
.nav__name::before { content: "+"; color: var(--terra); font-weight: 700; }
.nav__links { display: flex; align-items: center; gap: var(--space-md); list-style: none; }
.nav__links a { font-family: var(--mono); font-size: 0.74rem; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-2); }
.nav__links a:hover { color: var(--ink); }

.lang-toggle { display: flex; border: 1px solid var(--line); }
.lang-toggle__btn { background: none; border: none; font-family: var(--mono); font-size: 0.72rem; font-weight: 500; padding: 0.2rem 0.45rem; cursor: pointer; color: var(--ink-3); transition: all .15s ease; }
.lang-toggle__btn + .lang-toggle__btn { border-left: 1px solid var(--line); }
.lang-toggle__btn.active { background: var(--ink); color: var(--paper); }
.lang-toggle__btn:not(.active):hover { color: var(--ink); }

.theme-toggle { background: none; border: none; cursor: pointer; padding: 0.25rem; color: var(--ink-2); display: flex; align-items: center; line-height: 0; transition: color .15s ease; }
.theme-toggle:hover { color: var(--ink); }
.theme-toggle svg { width: 1rem; height: 1rem; display: block; }

.nav__cta { font-family: var(--mono); font-size: 0.74rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--ink) !important; padding: 0.4rem 0.8rem; border: 1px solid var(--ink); }
.nav__cta:hover { background: var(--green); color: var(--paper) !important; border-color: var(--green); }

/* --- Hamburger --- */
.nav__hamburger { display: none; flex-direction: column; justify-content: center; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; color: var(--ink); }
.nav__hamburger span { display: block; width: 22px; height: 1.5px; background: currentColor; transition: transform .2s ease, opacity .2s ease; }
.nav--open .nav__hamburger span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav--open .nav__hamburger span:nth-child(2) { opacity: 0; }
.nav--open .nav__hamburger span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* --- Hero --- */
.hero { padding: calc(var(--space-2xl) + 3.75rem) 0 var(--space-2xl); }
.hero__frame { position: relative; border: 1px solid var(--ink); background: transparent; padding: clamp(1.75rem, 4vw, 3.5rem); }
/* dimension ticks on the frame's top edge */
.hero__dim { position: absolute; top: -1px; left: 12%; right: 12%; height: 0; border-top: 1px solid var(--terra); }
.hero__dim::before, .hero__dim::after { content: ""; position: absolute; top: -5px; width: 1px; height: 11px; background: var(--terra); }
.hero__dim::before { left: 0; } .hero__dim::after { right: 0; }
.hero__dim span { position: absolute; top: -1.5rem; left: 50%; transform: translateX(-50%); font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.12em; color: var(--terra); background: var(--paper); padding: 0 0.5rem; white-space: nowrap; }

.hero__tagline { font-size: clamp(2.6rem, 7.5vw, 5.4rem); line-height: 0.98; letter-spacing: -0.03em; max-width: 16ch; margin-bottom: var(--space-lg); overflow-wrap: break-word; }
.hero__tagline em { font-style: normal; color: var(--terra); position: relative; }
.hero__tagline em::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0.04em; border-bottom: 2px dashed var(--green); }
.hero__bio { font-size: 1.1rem; line-height: 1.65; color: var(--ink-2); max-width: 34rem; }

/* drafting title block, pinned bottom-right of the frame */
.titleblock { margin-top: var(--space-xl); border: 1px solid var(--line); display: grid; grid-template-columns: repeat(4, 1fr); font-family: var(--mono); }
.titleblock div { padding: 0.6rem 0.8rem; border-right: 1px solid var(--line); }
.titleblock div:last-child { border-right: none; }
.titleblock dt { font-size: 0.6rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 0.25rem; }
.titleblock dd { font-size: 0.78rem; color: var(--ink); }
.titleblock dd b { color: var(--terra); font-weight: 600; }

/* --- Services --- */
.services__intro, .projects__intro { font-size: 1.1rem; line-height: 1.6; color: var(--ink-2); max-width: 44rem; margin-bottom: var(--space-lg); }
h2 { margin-bottom: var(--space-sm); }

.services__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.25rem; margin-top: var(--space-xl); }
.service-card { padding: clamp(1.25rem, 3vw, 2rem); }
.service-card__number { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.12em; color: var(--terra); display: block; margin-bottom: var(--space-md); }
.service-card__number::before { content: "FIG. "; color: var(--ink-3); }
.service-card__title { font-size: 1.25rem; font-weight: 700; margin-bottom: var(--space-sm); }
.service-card__text { font-size: 0.95rem; color: var(--ink-2); line-height: 1.65; max-width: none; }

/* --- Projects --- */
.project { margin-top: var(--space-lg); }
.project__strip { display: flex; align-items: center; gap: 0.85rem; padding: 0.6rem 1rem; border-bottom: 1px solid var(--line); font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-2); }
.project__pn { color: var(--paper); background: var(--green); padding: 0.15rem 0.5rem; letter-spacing: 0.1em; }
.project:nth-of-type(even) .project__pn { background: var(--terra); }
.project__strip-line { flex: 1; height: 1px; background: var(--line); }
.project__body { display: grid; grid-template-columns: 1.1fr 0.9fr; }
.project__main { padding: clamp(1.25rem, 3vw, 2rem); border-right: 1px solid var(--line); }
.project__side { padding: clamp(1.25rem, 3vw, 2rem); }
.project__label { font-family: var(--mono); font-size: 0.7rem; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; color: var(--green); margin-bottom: var(--space-xs); }
.project:nth-of-type(even) .project__label { color: var(--terra); }
.project__title { font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight: 700; letter-spacing: -0.02em; line-height: 1.02; margin-bottom: var(--space-md); }
.project__detail { font-size: 0.95rem; color: var(--ink-2); line-height: 1.65; }

.project__tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: var(--space-lg); }
.project__tag { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.02em; padding: 0.22rem 0.5rem; border: 1px solid var(--line); color: var(--ink-2); }
.project__tag::before { content: "["; color: var(--ink-3); margin-right: 1px; }
.project__tag::after { content: "]"; color: var(--ink-3); margin-left: 1px; }
.project__link { display: inline-flex; align-items: center; gap: 0.5rem; font-family: var(--mono); font-size: 0.76rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink); border-bottom: 1px solid var(--terra); padding-bottom: 3px; }
.project__link:hover { color: var(--terra); }
.project__link svg { width: 15px; height: 15px; transition: transform .2s ease; }
.project__link:hover svg { transform: translateX(4px); }

.card-bullets { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 0.65rem; }
.card-bullets li { padding-left: 1.4rem; position: relative; }
.card-bullets li::before { content: "—"; position: absolute; left: 0; color: var(--terra); font-family: var(--mono); }

/* --- Approach --- */
.how__text { font-size: 1.1rem; line-height: 1.75; color: var(--ink-2); margin-bottom: var(--space-md); max-width: 46rem; }
.how__text:first-of-type { font-size: 1.3rem; color: var(--ink); line-height: 1.5; letter-spacing: -0.01em; }
.how__text b { color: var(--ink); font-weight: 700; }

/* --- About --- */
.about__content { display: grid; grid-template-columns: 17rem 1fr; gap: var(--space-xl); align-items: start; }
.about__photo { position: relative; width: 100%; aspect-ratio: 4 / 5; padding: 0; }
.about__photo img { width: 100%; height: 100%; object-fit: cover; }
.about__cap { font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); margin-top: 0.6rem; display: block; }
.about__cap b { color: var(--terra); font-weight: 500; }
.about__text { font-size: 1.08rem; color: var(--ink-2); line-height: 1.8; max-width: 40rem; }
.about__text p + p { margin-top: var(--space-md); }

/* --- Contact --- */
.contact__text { font-size: 1.2rem; line-height: 1.55; color: var(--ink); margin-bottom: var(--space-lg); max-width: 46rem; }
.contact__email { display: inline-block; max-width: 100%; overflow-wrap: break-word; font-family: var(--sans); font-size: clamp(1.5rem, 5vw, 3.4rem); font-weight: 700; letter-spacing: -0.03em; color: var(--ink); border-bottom: 2px solid var(--terra); padding-bottom: 0.1rem; transition: color .15s ease; }
.contact__email:hover { color: var(--terra); }
.contact__links { margin-top: var(--space-lg); display: flex; gap: var(--space-md); }
.contact__links a { font-family: var(--mono); font-size: 0.76rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink); border: 1px solid var(--line); padding: 0.45rem 0.9rem; }
.contact__links a:hover { border-color: var(--terra); color: var(--terra); }

/* --- Footer --- */
.footer { padding: var(--space-lg) 0; border-top: 1px solid var(--ink); }
.footer__inner { display: flex; justify-content: space-between; align-items: center; font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-3); }
.footer__links { display: flex; gap: var(--space-md); }
.footer__links a { font-size: 0.72rem; color: var(--ink-3); }
.footer__links a:hover { color: var(--terra); }

/* --- Back to top --- */
.to-top { position: fixed; bottom: var(--space-md); right: var(--space-md); width: 2.6rem; height: 2.6rem; background: var(--surface); border: 1px solid var(--ink); display: flex; align-items: center; justify-content: center; cursor: pointer; color: var(--ink); opacity: 0; pointer-events: none; transition: opacity .2s ease, background .15s ease, color .15s ease; z-index: 99; }
.to-top.visible { opacity: 1; pointer-events: auto; }
.to-top:hover { background: var(--green); color: var(--paper); border-color: var(--green); }

/* --- Language switch transition --- */
::view-transition-old(root), ::view-transition-new(root) { animation-duration: 280ms; animation-timing-function: ease; }
@media (prefers-reduced-motion: reduce) { ::view-transition-old(root), ::view-transition-new(root) { animation-duration: 0ms; } }

/* --- Responsive --- */
@media (max-width: 860px) {
  .services__grid { grid-template-columns: 1fr; }
  .project__body { grid-template-columns: 1fr; }
  .project__main { border-right: none; border-bottom: 1px solid var(--line); }
  .titleblock { grid-template-columns: repeat(2, 1fr); }
  .titleblock div:nth-child(2) { border-right: none; }
  .titleblock div:nth-child(1), .titleblock div:nth-child(2) { border-bottom: 1px solid var(--line); }
  .about__content { grid-template-columns: 1fr; gap: var(--space-lg); }
  .about__photo { max-width: 17rem; }
  section { padding: var(--space-xl) 0; }
}
@media (max-width: 768px) {
  .nav__hamburger { display: flex; }
  .nav__links { display: none; }
  .nav--open .nav__links { display: flex; flex-direction: column; align-items: flex-start; gap: var(--space-sm); position: absolute; top: 3.75rem; left: 0; right: 0; background: var(--nav-bg); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--ink); padding: var(--space-md) var(--gutter) var(--space-lg); }
  .nav--open .nav__links li { width: 100%; }
  .nav--open .nav__links a { font-size: 1rem; padding: 0.3rem 0; }
}
@media (max-width: 480px) {
  .hero__frame { padding: 1.25rem; }
  .titleblock { grid-template-columns: 1fr 1fr; }
}

/* ============================================
   Animation & graphics layer
   ============================================ */

/* Scroll-reveal */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s cubic-bezier(.2,.8,.2,1), transform .6s cubic-bezier(.2,.8,.2,1); }
.reveal.in { opacity: 1; transform: none; }

/* Crosshair "snap" when a plate reveals */
.plate.reveal.in::before, .plate.reveal.in::after { animation: tick-pop .45s cubic-bezier(.2,.9,.2,1) both; }
@keyframes tick-pop { 0% { transform: scale(0); opacity: 0; } 60% { transform: scale(1.35); opacity: 1; } 100% { transform: scale(1); } }

/* Hero load choreography */
.hero__frame { animation: frame-in .8s cubic-bezier(.2,.8,.2,1) both; }
@keyframes frame-in { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
.hero__dim { animation: dim-grow 1s cubic-bezier(.4,0,.1,1) .35s both; }
@keyframes dim-grow { from { left: 50%; right: 50%; opacity: 0; } to { left: 12%; right: 12%; opacity: 1; } }
.hero__dim span { animation: fade-up .6s ease 1s both; }
.hero__tagline { animation: fade-up .7s cubic-bezier(.2,.8,.2,1) .15s both; }
.hero__bio { animation: fade-up .7s cubic-bezier(.2,.8,.2,1) .3s both; }
.hero__tagline em::after { transform-origin: left center; animation: draw-x .55s ease 1s both; }
@keyframes draw-x { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@keyframes fade-up { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.titleblock div { animation: fade-up .5s ease both; }
.titleblock div:nth-child(1) { animation-delay: .7s; }
.titleblock div:nth-child(2) { animation-delay: .8s; }
.titleblock div:nth-child(3) { animation-delay: .9s; }
.titleblock div:nth-child(4) { animation-delay: 1s; }

/* Registration compass — drafting graphic, top-right of hero frame */
.hero__mark { position: absolute; top: 1rem; right: 1rem; width: 54px; height: 54px; color: var(--terra); opacity: .85; animation: mark-in 1s cubic-bezier(.2,.8,.2,1) .5s both; }
.hero__mark .spin { transform-origin: 27px 27px; animation: slow-spin 36s linear infinite; }
@keyframes mark-in { from { opacity: 0; transform: rotate(-25deg) scale(.6); } to { opacity: .85; transform: none; } }
@keyframes slow-spin { to { transform: rotate(360deg); } }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero__frame, .hero__dim, .hero__dim span, .hero__tagline, .hero__bio, .titleblock div, .hero__mark { animation: none; }
  .hero__dim { left: 12%; right: 12%; }
  .hero__tagline em::after { animation: none; transform: none; }
  .hero__mark .spin { animation: none; }
  .plate.reveal.in::before, .plate.reveal.in::after { animation: none; }
}

/* ============================================
   Case study + Impressum (drafting sheets)
   ============================================ */
.case-study { padding-top: calc(var(--space-2xl) + 3.75rem); padding-bottom: var(--space-2xl); counter-reset: csec; }
.case-study__back { display: inline-flex; align-items: center; gap: 0.55rem; font-family: var(--mono); font-size: 0.76rem; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-2); margin-bottom: var(--space-xl); }
.case-study__back:hover { color: var(--terra); }
.case-study__back svg { width: 14px; height: 14px; transition: transform .2s ease; }
.case-study__back:hover svg { transform: translateX(-4px); }

.cs__kicker { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--terra); margin-bottom: var(--space-md); display: flex; align-items: center; gap: 0.8rem; }
.cs__kicker::after { content: ""; flex: 1; height: 1px; background: var(--line); }

.case-study__header { margin-bottom: var(--space-2xl); }
.case-study__logo { display: inline-flex; align-items: center; justify-content: center; width: 168px; height: 68px; padding: 0 1rem; background: #fff; border: 1px solid var(--line); margin-bottom: var(--space-lg); }
.case-study__logo img { max-width: 100%; max-height: 70%; object-fit: contain; filter: brightness(0); }
.case-study__title { font-size: clamp(2.2rem, 5.5vw, 4rem); letter-spacing: -0.03em; line-height: 1; margin-bottom: var(--space-md); }
.case-study__subtitle { font-size: 1.2rem; color: var(--ink-2); max-width: 46rem; line-height: 1.6; }

.case-study__meta-bar { display: grid; grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr)); border: 1px solid var(--line); margin-top: var(--space-xl); overflow: hidden; }
.case-study__meta-item { padding: 0.8rem 1rem; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); margin: 0 -1px -1px 0; }
.case-study__meta-item dt { font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 0.3rem; }
.case-study__meta-item dd { font-family: var(--mono); font-size: 0.82rem; color: var(--ink); line-height: 1.4; }
.case-study__meta-item dd a { color: var(--green); }

.case-study__section { counter-increment: csec; border-top: 1px solid var(--line); padding: var(--space-xl) 0; max-width: 52rem; }
.case-study__section h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); margin-bottom: var(--space-md); }
.case-study__section h2::before { content: "SEC " counter(csec, decimal-leading-zero); display: block; font-family: var(--mono); font-size: 0.72rem; font-weight: 500; letter-spacing: 0.14em; color: var(--terra); margin-bottom: 0.7rem; }
.case-study__section p { font-size: 1.05rem; color: var(--ink-2); line-height: 1.8; max-width: 46rem; }
.case-study__section p + p { margin-top: var(--space-md); }
.case-study__section p b { color: var(--ink); }

.case-study__testimonial-section { border-top: 1px solid var(--line); padding: var(--space-xl) 0; max-width: 52rem; }
.case-study__testimonial { position: relative; padding: var(--space-lg); background: var(--surface); border: 1px solid var(--line); border-left: 3px solid var(--terra); }
.case-study__testimonial p { font-size: 1.2rem; font-style: italic; color: var(--ink); line-height: 1.6; max-width: none; }
.case-study__testimonial cite { display: block; margin-top: var(--space-md); font-family: var(--mono); font-size: 0.8rem; font-style: normal; letter-spacing: 0.04em; color: var(--ink-2); }
.case-study__links { display: flex; flex-wrap: wrap; gap: var(--space-sm) var(--space-md); margin-top: var(--space-lg); }
.case-study__link { display: inline-flex; align-items: center; gap: 0.5rem; font-family: var(--mono); font-size: 0.76rem; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; color: var(--ink); border: 1px solid var(--line); padding: 0.5rem 0.9rem; }
.case-study__link:hover { border-color: var(--terra); color: var(--terra); }
.case-study__link svg { width: 14px; height: 14px; transition: transform .2s ease; }
.case-study__link:hover svg { transform: translate(2px, -2px); }

@media (max-width: 768px) {
  .case-study { padding-top: calc(var(--space-xl) + 3.75rem); }
  .case-study__section { padding: var(--space-lg) 0; }
}