/* ==========================================================================
   Site-specific styles — Website navigation, footer, page layout
   Brand styling will be applied from shared design system
   ========================================================================== */

/* ---------- Navigation ---------- */
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-5) var(--page-padding);
  max-width: calc(925px + 2 * var(--page-padding));
  margin: 0 auto;
  width: 100%;
  box-sizing: border-box;
}

.nav-name {
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 700;
  color: var(--color-ink);
  text-decoration: none;
}

.nav-name:hover {
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: var(--space-6);
  list-style: none;
}

.nav-links a {
  font-size: var(--text-base);
  color: var(--color-ink-mid);
  text-decoration: none;
  font-weight: 400;
}

.nav-links a:hover {
  color: var(--color-ink);
}

.nav-links a.active {
  color: var(--color-ink);
  font-weight: 500;
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-ink);
  margin: 4px 0;
  transition: transform 0.2s;
}

/* ---------- Footer ---------- */
.footer {
  padding: var(--space-10) var(--page-padding);
  max-width: var(--page-wide-max);
  margin: 0 auto;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-contact {
  font-size: var(--text-sm);
  color: var(--color-ink-light);
}

.footer-contact a {
  color: var(--color-ink-mid);
}

/* ---------- Case Study Page Layout ---------- */
.case-study-header {
  padding: var(--space-16) var(--page-padding) var(--space-10);
  max-width: var(--page-max-width);
  margin: 0 auto;
}

.case-study-meta {
  font-size: var(--text-sm);
  color: var(--color-ink-light);
  margin-bottom: var(--space-3);
}

.case-study-nav {
  display: flex;
  justify-content: space-between;
  padding: var(--space-10) var(--page-padding);
  max-width: var(--page-max-width);
  margin: 0 auto;
}

.case-study-nav a {
  font-size: var(--text-sm);
  color: var(--color-ink-mid);
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 60px;
    right: 0;
    left: 0;
    background: var(--color-white);
    padding: var(--space-4) var(--page-padding);
    border-bottom: 1px solid var(--color-border);
    z-index: 100;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-toggle {
    display: block;
  }

  .nav {
    position: relative;
    z-index: 100;
  }

  .footer {
    flex-direction: column;
    gap: var(--space-3);
    text-align: center;
  }
}

/* ---------- Client Logo Grid ---------- */
.client-logo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-6) var(--space-8);
  margin-top: var(--space-6);
}

.client-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-5);
  background: var(--color-white);
  border: 1px solid var(--color-cream);
  border-radius: var(--radius-md);
  transition: all 0.3s ease;
  min-height: 80px;
}

.client-logo img {
  max-width: 100%;
  max-height: 50px;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: grayscale(100%) opacity(0.7);
  transition: filter 0.3s ease;
}

.client-logo:hover {
  border-color: var(--color-ink-light);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.client-logo:hover img {
  filter: grayscale(0%) opacity(1);
}

@media (max-width: 768px) {
  .client-logo-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
  }
  
  .client-logo {
    font-size: var(--text-sm);
    min-height: 60px;
    padding: var(--space-3) var(--space-4);
  }
}