:root {
      --color-bg: #ffffff;
      --color-text: #000000;
      --color-accent: #e53935;
      --font-body: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
      --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
      --space-1: 4px;
      --space-2: 8px;
      --space-3: 12px;
      --space-4: 16px;
      --space-5: 20px;
      --space-6: 24px;
      --space-8: 32px;
      --space-10: 40px;
      --space-12: 48px;
      --space-16: 64px;
      --grid-max: 1120px;
    }

    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      font-family: var(--font-body);
      font-size: 16px;
      line-height: 1.5;
      background: var(--color-bg);
      color: var(--color-text);
      -webkit-font-smoothing: antialiased;
    }

    body {
      min-height: 100vh;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    a[href], button {
      cursor: pointer;
    }

    button {
      border: none;
      background: none;
      font: inherit;
      color: inherit;
    }

    :focus-visible {
      outline: 3px solid var(--color-accent);
      outline-offset: 3px;
    }

    .skip-link {
      position: absolute;
      left: -9999px;
      top: var(--space-4);
      padding: var(--space-2) var(--space-4);
      background: var(--color-accent);
      color: #ffffff;
      font-weight: 700;
    }

    .skip-link:focus-visible {
      left: var(--space-4);
    }

    .page {
      max-width: var(--grid-max);
      margin-inline: auto;
      padding-inline: var(--space-4);
    }

    .grid {
      display: grid;
      grid-template-columns: repeat(12, minmax(0, 1fr));
      column-gap: var(--space-4);
      align-items: flex-start;
    }

    header {
      margin-bottom: var(--space-10);
    }

    .header-inner {
      padding-block: var(--space-4);
      align-items: center;
    }

    .brand {
      grid-column: 1 / span 6;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      font-size: 0.875rem;
      font-weight: 700;
    }

    .brand span {
      display: block;
    }

    .brand span:first-child {
      font-size: 1rem;
    }

    .header-nav {
      grid-column: 7 / span 3;
      justify-self: end;
      display: flex;
      gap: var(--space-3);
      font-size: 0.875rem;
      text-transform: uppercase;
    }

    .header-nav a {
      padding-block: 2px;
    }

    .header-controls {
      grid-column: 10 / span 3;
      justify-self: end;
      display: flex;
      gap: var(--space-2);
      align-items: center;
    }

    .btn-outline {
      border: 2px solid #000000;
      padding: var(--space-2) var(--space-3);
      text-transform: uppercase;
      font-size: 0.75rem;
      letter-spacing: 0.08em;
    }

    .btn-accent {
      border: 2px solid #000000;
      background: var(--color-accent);
      color: #ffffff;
      padding: var(--space-2) var(--space-3);
      text-transform: uppercase;
      font-size: 0.75rem;
      letter-spacing: 0.08em;
    }

    main {
      padding-block: var(--space-8) var(--space-12);
    }

    .section {
      padding-block: var(--space-12);
    }

    .section-head {
      grid-column: 1 / span 3;
      text-transform: uppercase;
      font-size: 0.75rem;
      letter-spacing: 0.14em;
      font-weight: 700;
    }

    .section-head span {
      display: block;
    }

    .section-body {
      grid-column: 4 / span 9;
    }

    /* ── Hero ─────────────────────────────────────────── */

    .hero-block {
      max-width: 40rem;
    }

    .hero-block > * {
      margin-left: 0;
    }

    .hero-title {
      font-size: clamp(2.5rem, 4vw, 3.5rem);
      line-height: 1.05;
      text-transform: uppercase;
      letter-spacing: 0.06em;
      margin-bottom: var(--space-4);
    }

    .hero-title em {
      font-style: normal;
      color: var(--color-accent);
    }

    .hero-text {
      max-width: 48rem;
      font-size: 1rem;
      margin-bottom: var(--space-4);
    }

    .hero-tags {
      font-family: var(--font-mono);
      font-weight: 500;
      display: flex;
      flex-wrap: wrap;
      gap: normal;
      font-size: 0.75rem;
    }

    .hero-tags span {
      padding: var(--space-1) var(--space-2);
    }

    .hero-actions {
      margin-top: var(--space-4);
      display: flex;
      flex-wrap: wrap;
      gap: var(--space-3);
    }

    .hero-meta {
      margin-top: var(--space-4);
      font-size: 0.875rem;
    }

    .hero-meta dl {
      display: grid;
      grid-template-columns: minmax(0, 8rem) minmax(0, 1fr);
      row-gap: var(--space-2);
      column-gap: var(--space-4);
    }

    .hero-meta dt {
      text-transform: uppercase;
      letter-spacing: 0.08em;
      font-size: 0.75rem;
    }

    .hero-meta dd {
      margin: 0;
    }

    /* ── Expertise ────────────────────────────────────── */

    .list {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: var(--space-4);
    }

    .list-item h3 {
      text-transform: uppercase;
      letter-spacing: 0.06em;
      font-size: 0.875rem;
      margin-bottom: var(--space-2);
    }

    .list-item p {
      font-size: 0.875rem;
      line-height: 170%;
    }

    .list-tags {
      font-family: var(--font-mono);
      font-weight: 500;
      margin-top: var(--space-2);
      font-size: 0.75rem;
      display: flex;
      flex-wrap: wrap;
      gap: var(--space-4);
  
    }

    .list-tags span {
      padding: 0;
    }

    /* ── Projects ─────────────────────────────────────── */

    .projects-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: var(--space-8);
    }

    .project {
      display: flex;
      flex-direction: column;
    }

    .project h3 {
      text-transform: uppercase;
      letter-spacing: 0.06em;
      font-size: 0.875rem;
      margin-bottom: var(--space-2);
    }

    .project p {
      font-size: 0.875rem;
      flex-grow: 1;
      margin-bottom: var(--space-3);
      line-height: 170%;
    }

    .project-tags {
      font-family: var(--font-mono);
      font-weight: 500;
      font-size: 0.75rem;
      display: flex;
      flex-wrap: wrap;
      gap: var(--space-3);
      margin-bottom: var(--space-3);
    }

    .project-links {
      display: flex;
      gap: var(--space-2);
      flex-wrap: wrap;
    }

    /* ── Timeline ─────────────────────────────────────── */

    .timeline {
      display: grid;
      gap: var(--space-6);
      font-size: 0.875rem;
    }

    .timeline-item small {
      display: block;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      font-size: 0.75rem;
      line-height: 170%;
      margin-bottom: 2px;
    }

    .timeline-item h3 {
      font-size: 0.875rem;
      text-transform: uppercase;
      letter-spacing: 0.06em;
      margin-bottom: var(--space-1);
    }

    .timeline-item p {
      font-size: 0.875rem;
    line-height: 170%;    }

    /* ── Contact ──────────────────────────────────────── */

    .contact-actions {
      margin-top: var(--space-4);
      display: flex;
      flex-wrap: wrap;
      gap: var(--space-3);
    }

    /* ── Footer ───────────────────────────────────────── */

    footer {
      padding-block: var(--space-8);
      font-size: 0.75rem;
      text-transform: uppercase;
      letter-spacing: 0.08em;
    }

    footer .grid {
      align-items: center;
    }

    footer p {
      grid-column: 1 / span 6;
      line-height: 170%;
    }

    footer span {
      grid-column: 7 / span 6;
      justify-self: end;
    }

    /* ── Mobile ───────────────────────────────────────── */

    @media (max-width: 800px) {
      .grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
      }
      .brand {
        grid-column: 1 / span 4;
      }
      .header-nav {
        display: none;
      }
      .header-controls {
        grid-column: 1 / span 4;
        justify-self: start;
        margin-top: var(--space-2);
      }
      .section-head {
        grid-column: 1 / span 4;
        margin-bottom: var(--space-3);
      }
      .section-body {
        grid-column: 1 / span 4;
      }
      .list, .projects-grid {
        grid-template-columns: 1fr;
      }
      footer p {
        grid-column: 1 / span 4;
      }
      footer span {
        grid-column: 1 / span 4;
        justify-self: start;
        margin-top: var(--space-2);
      }
    }
/* ── Case pages / language switch ─────────────────── */

.case {
  max-width: 720px;
  margin: 0 auto;
}

.case-header {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

.case-header h1 {
  font-size: 1.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.case-subtitle {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text);
  opacity: 0.7;
}

.lang-switch {
  display: inline-flex;
  gap: var(--space-2);
  align-items: center;
  margin-top: var(--space-2);
}

.lang-btn {
  border: 1px solid #000000;
  background: transparent;
  color: inherit;
  padding: 0.25rem 0.75rem;
  font-size: 0.8rem;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition:
    background 0.15s ease,
    color 0.15s ease,
    border-color 0.15s ease;
}

.lang-btn.is-active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #ffffff;
}

.case-section {
  margin-bottom: var(--space-6);
}

.case-section h2 {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-2);
}

.case-section p,
.case-section li {
  font-size: 0.9rem;
}

.case-section ul {
  list-style: disc;
  padding-left: 1.25rem;
  display: grid;
  row-gap: var(--space-2);
}