/* Shared: project cards + site footer */

/* ============================================================
       PROJECTS — INSTITUTIONAL SHOWCASE
       ============================================================ */
    .projects-institutional {
      background: #ffffff;
      padding-top: 2rem;
      padding-bottom: 3rem;
    }

    #Intro.section.intro {
      padding-bottom: 3rem;
    }

    .projects-inst-title {
      font-size: calc(1.2vw + 1.75rem);
      font-weight: 600;
      color: #000000;
      letter-spacing: -0.02em;
      line-height: 1.15;
      margin: 0 0 1.25rem;
    }

    .projects-inst-sub {
      color: rgba(0, 0, 0, 0.55);
      font-size: 20px;
      line-height: 1.6;
      max-width: 42rem;
      margin: 0 0 3rem;
    }

    /* ── Grid ── */
    .projects-inst-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    /* ── Card ── */
    .projects-inst-card {
      background-color: #f9f9f9;
      border: 1px solid rgba(0, 0, 0, 0.06);
      border-radius: 8px;
      overflow: hidden;
      cursor: pointer;
      text-decoration: none;
      display: block;
      color: inherit;
      transition:
        box-shadow 0.40s cubic-bezier(0.22, 0.61, 0.36, 1),
        transform   0.40s cubic-bezier(0.22, 0.61, 0.36, 1),
        border-color 0.40s ease;
    }

    .projects-inst-card:hover {
      border-color: transparent;
      box-shadow:
        0 4px  8px  rgba(0, 0, 0, 0.04),
        0 12px 28px rgba(0, 0, 0, 0.08),
        0 24px 48px rgba(0, 0, 0, 0.12);
      transform: translateY(-5px);
    }

    /* ── Image Container ── */
    .projects-inst-img-wrap {
      width: 100%;
      aspect-ratio: 16 / 10;
      overflow: hidden;
      background: #e2e2e2;
    }

    .projects-inst-img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.55s cubic-bezier(0.22, 0.61, 0.36, 1);
    }

    .projects-inst-card:hover .projects-inst-img {
      transform: scale(1.045);
    }

    /* ── Card Body ── */
    .projects-inst-card-body {
      padding: 22px 24px 28px;
    }

    .projects-inst-label {
      display: block;
      font-size: 18px;
      font-weight: 400;
      color: rgba(0, 0, 0, 0.45);
      margin-bottom: 10px;
    }

    .projects-inst-card-title {
      color: #111111;
      font-size: 20px;
      font-weight: 600;
      line-height: 1.4;
      margin: 0;
      letter-spacing: -0.01em;
    }

    /* ── Responsive: Tablet ≤ 1024px ── */
    @media screen and (max-width: 1024px) {
      .projects-inst-title { font-size: 36px; }
      .projects-inst-grid  { gap: 20px; }
    }

    /* ── Responsive: Mobile ≤ 768px ── */
    @media screen and (max-width: 768px) {
      .projects-institutional { padding-top: 1.5rem; padding-bottom: 4rem; }
      #Intro.section.intro    { padding-bottom: 2.5rem; }
      .projects-inst-title    { font-size: 1.75rem; }
      .projects-inst-sub      { margin-bottom: 2rem; }
      .projects-inst-grid {
        display: flex;
        flex-direction: column;
        gap: 20px;
      }
      .projects-inst-card { width: 100%; }
    }

    @media screen and (max-width: 479px) {
      .projects-inst-title      { font-size: 1.5rem; }
      .projects-inst-card-title { font-size: 16px; }
    }

    .see-all-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 0.5rem 1rem;
      background-color: #111111;
      color: #ffffff;
      font-size: 1rem;
      font-weight: 500;
      letter-spacing: -0.01em;
      text-decoration: none;
      border-radius: 9999px;
      border: none;
      transition: background-color 0.25s ease;
    }

    .see-all-btn:hover {
      background-color: #333333;
    }

    .projects-inst-cta {
      text-align: center;
      margin-top: 2.5rem;
    }

    /* ============================================================
       SITE FOOTER — institutional multi-column
       ============================================================ */
    .si-footer {
      background-color: #f5f5f7;
      color: #111111;
      font-family: inherit;
      width: 100%;
      padding: 4.5rem 5% 2.5rem;
    }

    .si-footer-inner {
      max-width: 75rem;
      margin: 0 auto;
    }

    .si-footer-grid {
      display: grid;
      grid-template-columns: 1.35fr 1fr 1fr 1fr;
      gap: 3rem 2.5rem;
      align-items: start;
    }

    .si-footer-brand {
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      gap: 1.25rem;
      max-width: 22rem;
    }

    .si-footer-logo {
      width: 2.75rem;
      height: 2.75rem;
      display: block;
      filter: brightness(0);
    }

    .si-footer-social {
      display: flex;
      align-items: center;
      gap: 0.75rem;
    }

    .si-footer-social-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 2rem;
      height: 2rem;
      color: #111111;
      opacity: 0.72;
    }

    .si-footer-social-icon svg {
      width: 1.125rem;
      height: 1.125rem;
      fill: currentColor;
    }

    .si-footer-tagline {
      margin: 0;
      font-size: 1.35rem;
      font-weight: 600;
      line-height: 1.35;
      letter-spacing: -0.02em;
      color: #111111;
    }

    .si-footer-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-top: 0.25rem;
      padding: 0.7rem 1.35rem;
      background-color: #111111;
      color: #ffffff;
      font-family: inherit;
      font-size: 1.3rem;
      font-weight: 500;
      letter-spacing: 0.02em;
      border-radius: 3rem;
      border: none;
      cursor: pointer;
      white-space: nowrap;
      text-decoration: none;
      transition: background-color 0.2s ease;
    }

    a.si-footer-cta:hover {
      background-color: #333333;
    }

    .si-footer-col-title {
      margin: 0 0 1.1rem;
      font-size: 1rem;
      font-weight: 600;
      letter-spacing: -0.01em;
      color: #111111;
    }

    .si-footer-list {
      list-style: none;
      margin: 0;
      padding: 0;
      display: flex;
      flex-direction: column;
      gap: 0.55rem;
    }

    .si-footer-list li {
      font-size: 0.95rem;
      font-weight: 400;
      line-height: 1.45;
      color: rgba(0, 0, 0, 0.62);
    }

    .si-footer-list li strong {
      font-weight: 500;
      color: rgba(0, 0, 0, 0.82);
    }

    .si-footer-list a {
      color: rgba(0, 0, 0, 0.62);
      text-decoration: none;
    }

    .si-footer-list a:hover {
      text-decoration: underline;
    }

    .si-footer-bottom {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 1rem 2rem;
      margin-top: 3.5rem;
      padding-top: 1.75rem;
      border-top: 1px solid rgba(0, 0, 0, 0.08);
    }

    .si-footer-copy {
      margin: 0;
      font-size: 0.875rem;
      color: rgba(0, 0, 0, 0.5);
      line-height: 1.5;
    }

    .si-footer-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 0.35rem 1.25rem;
      font-size: 0.875rem;
      color: rgba(0, 0, 0, 0.5);
    }

    @media screen and (max-width: 1024px) {
      .si-footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2.5rem 2rem;
      }

      .si-footer-brand {
        grid-column: 1 / -1;
        max-width: 28rem;
      }
    }

    @media screen and (max-width: 640px) {
      .si-footer {
        padding: 3rem 1.25rem 2rem;
      }

      .si-footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
      }

      .si-footer-brand {
        max-width: none;
      }

      .si-footer-tagline {
        font-size: 1.2rem;
      }

      .si-footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        margin-top: 2.5rem;
      }
    }