/* === NAVIGATION === */
/* Unified fixed/pinned navigation across all sections */
/* IMPORTANT: Nav styles must be consistent regardless of section */

.nav-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 60px;
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  display: flex;
  align-items: center;
  padding: 0 var(--spacing-lg);
  gap: var(--spacing-xl);
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
  /* Force sans-serif on nav, override any section body font */
  font-family: var(--font-sans) !important;
}

/* Site branding - IPH monogram */
.nav-brand {
  font-family: var(--font-sans) !important;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.1em;
  color: var(--text-primary);
  white-space: nowrap;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.nav-brand:hover {
  color: var(--primary-color, var(--accent));
  text-decoration: none;
}

/* Navigation links */
.nav-links {
  display: flex;
  gap: var(--spacing-lg);
  align-items: center;
  flex: 1;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.nav-links a {
  font-family: var(--font-sans) !important;
  white-space: nowrap;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  padding: var(--spacing-sm) 0;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
  position: relative;
}

.nav-links a:hover {
  color: var(--text-primary);
  text-decoration: none;
  border-bottom-color: var(--primary-color, var(--accent));
}

.nav-links a.active {
  color: var(--text-primary);
  border-bottom-color: var(--primary-color, var(--accent));
  font-weight: 600;
}

/* === NAV LINK COLORS === */
/* Each nav item uses its own section color on hover/active only */
.nav-links a[href="/"]:hover,
.nav-links a[href="/"].active {
  border-bottom-color: var(--nav-home);
}

.nav-links a[href="/work/"]:hover,
.nav-links a[href="/work/"].active {
  border-bottom-color: var(--nav-work);
}

.nav-links a[href="/building/"]:hover,
.nav-links a[href="/building/"].active {
  border-bottom-color: var(--nav-building);
}

.nav-links a[href="/thinking/"]:hover,
.nav-links a[href="/thinking/"].active {
  border-bottom-color: var(--nav-thinking);
}

.nav-links a[href="/interests/"]:hover,
.nav-links a[href="/interests/"].active {
  border-bottom-color: var(--nav-interests);
}

.nav-links a[href="/faith/"]:hover,
.nav-links a[href="/faith/"].active {
  border-bottom-color: var(--nav-faith);
}

.nav-links a[href="/timeline/"]:hover,
.nav-links a[href="/timeline/"].active {
  border-bottom-color: var(--nav-timeline);
}

.nav-links a[href="/connect/"]:hover,
.nav-links a[href="/connect/"].active {
  border-bottom-color: var(--nav-connect);
}

/* Right side controls */
.nav-controls {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
  margin-left: auto;
  white-space: nowrap;
}

/* Follow button */
.nav-follow {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 6px 12px;
  color: var(--text-primary);
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.nav-follow:hover {
  border-color: var(--text-tertiary);
  background-color: var(--bg-secondary);
  text-decoration: none;
  color: var(--text-primary);
}

.nav-follow svg {
  flex-shrink: 0;
}

.nav-follow-text {
  font-family: var(--font-sans);
}

/* Content padding to account for fixed nav */
main {
  margin-top: 80px;
  padding-bottom: var(--spacing-2xl);
}

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
  color: var(--text-primary);
  font-size: 1.5rem;
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .nav-bar {
    padding: 0 var(--spacing-md);
    gap: var(--spacing-md);
    height: 56px;
  }

  .nav-brand {
    font-size: 1rem;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    flex-direction: column;
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    gap: 0;
    padding: var(--spacing-md) 0;
    max-height: calc(100vh - 56px);
    overflow-y: auto;
  }

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

  .nav-links a {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: none;
    border-left: 4px solid transparent;
  }

  .nav-links a:hover,
  .nav-links a.active {
    background-color: var(--bg-secondary);
  }

  /* Mobile: section-specific left border colors */
  .nav-links a[href="/"]:hover,
  .nav-links a[href="/"].active {
    border-left-color: var(--nav-home);
  }

  .nav-links a[href="/work/"]:hover,
  .nav-links a[href="/work/"].active {
    border-left-color: var(--nav-work);
  }

  .nav-links a[href="/building/"]:hover,
  .nav-links a[href="/building/"].active {
    border-left-color: var(--nav-building);
  }

  .nav-links a[href="/thinking/"]:hover,
  .nav-links a[href="/thinking/"].active {
    border-left-color: var(--nav-thinking);
  }

  .nav-links a[href="/interests/"]:hover,
  .nav-links a[href="/interests/"].active {
    border-left-color: var(--nav-interests);
  }

  .nav-links a[href="/faith/"]:hover,
  .nav-links a[href="/faith/"].active {
    border-left-color: var(--nav-faith);
  }

  .nav-links a[href="/timeline/"]:hover,
  .nav-links a[href="/timeline/"].active {
    border-left-color: var(--nav-timeline);
  }

  .nav-links a[href="/connect/"]:hover,
  .nav-links a[href="/connect/"].active {
    border-left-color: var(--nav-connect);
  }

  .nav-toggle {
    display: block;
    order: -1;
  }

  .nav-controls {
    gap: var(--spacing-sm);
  }

  main {
    margin-top: 70px;
  }
}

@media (max-width: 480px) {
  .nav-bar {
    height: 52px;
    padding: 0 var(--spacing-sm);
  }

  .nav-brand {
    font-size: 0.95rem;
  }

  .nav-links {
    top: 52px;
  }

  main {
    margin-top: 65px;
  }
}