:root {
  --accent: #fed136;
  --accent-dark: #fec503;
  --dark: #212529;
}

body {
  font-family:
    "Roboto Slab",
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  scroll-behavior: smooth;
}

h1,
h2,
h3,
h4,
h5,
h6,
.navbar-brand,
.navbar-nav .nav-link,
.btn {
  font-family:
    "Montserrat",
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  font-weight: 700;
}

.text-primary {
  color: var(--accent) !important;
}

/* ---------- Navbar ---------- */
#mainNav {
  background-color: var(--dark);
  transition:
    padding-top 0.3s ease-in-out,
    padding-bottom 0.3s ease-in-out,
    background-color 0.3s ease-in-out;
  padding-top: 1rem;
  padding-bottom: 1rem;
}

#mainNav .navbar-brand {
  color: var(--accent);
  font-size: 1.5rem;
  letter-spacing: 0.05rem;
}

#mainNav .navbar-brand span {
  color: #fff;
}

#mainNav .navbar-nav .nav-link {
  font-size: 0.9rem;
  letter-spacing: 0.0625em;
  color: rgba(255, 255, 255, 0.75);
  padding: 0.75rem 0;
  margin: 0 0.75rem;
  border-bottom: 2px solid transparent;
  transition:
    color 0.2s ease-in-out,
    border-color 0.2s ease-in-out;
}

#mainNav .navbar-nav .nav-link:hover,
#mainNav .navbar-nav .nav-link.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

#mainNav .navbar-toggler {
  font-size: 0.75rem;
  font-family: "Montserrat", sans-serif;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--dark);
  background-color: var(--accent);
  border: 0;
  padding: 0.6rem 0.9rem;
}

@media (min-width: 992px) {
  #mainNav {
    padding-top: 1.5rem;
    padding-bottom: 1.5rem;
    background-color: transparent;
  }

  #mainNav.navbar-shrink {
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
    background-color: var(--dark);
    box-shadow: 0 0.25rem 1rem rgba(0, 0, 0, 0.25);
  }
}

/* ---------- Masthead ---------- */
.masthead {
  padding-top: 10.5rem;
  padding-bottom: 6rem;
  text-align: center;
  color: #fff;
  background-color: var(--dark);
  background-image:
    linear-gradient(to bottom, rgba(33, 37, 41, 0.72), rgba(33, 37, 41, 0.72)),
    url("https://images.unsplash.com/photo-1497366216548-37526070297c?auto=format&fit=crop&w=1950&q=80");
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
}

.masthead-subheading {
  font-family: "Roboto Slab", sans-serif;
  font-size: 1.5rem;
  font-style: italic;
  line-height: 1.5rem;
  margin-bottom: 1.5rem;
}

.masthead-heading {
  font-family: "Montserrat", sans-serif;
  font-size: 3.25rem;
  font-weight: 700;
  line-height: 3.25rem;
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  .masthead {
    padding-top: 17rem;
    padding-bottom: 12.5rem;
  }

  .masthead-subheading {
    font-size: 2.25rem;
    line-height: 2.25rem;
    margin-bottom: 2rem;
  }

  .masthead-heading {
    font-size: 4.5rem;
    line-height: 4.5rem;
    margin-bottom: 4rem;
  }
}

/* ---------- Buttons ---------- */
.btn-primary,
.btn-primary:active,
.btn-primary:focus {
  background-color: var(--accent);
  border-color: var(--accent);
  color: var(--dark);
}

.btn-primary:hover {
  background-color: var(--accent-dark);
  border-color: var(--accent-dark);
  color: var(--dark);
}

.btn-xl {
  font-size: 1.125rem;
  font-weight: 700;
  padding: 1.25rem 2.5rem;
  letter-spacing: 0.0625em;
  border-radius: 3rem;
}

.btn-social {
  border-radius: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
}

/* ---------- Sections ---------- */
.page-section {
  padding: 6rem 0;
  scroll-margin-top: 70px;
}

.section-heading {
  font-size: 2.5rem;
  margin-top: 0;
  margin-bottom: 0.75rem;
}

.section-subheading {
  font-family: "Roboto Slab", sans-serif;
  font-size: 1rem;
  font-style: italic;
  font-weight: 400;
  text-transform: none;
  margin-bottom: 4rem;
}

/* ---------- About ---------- */
.about-avatar {
  width: 12rem;
  height: 12rem;
  margin: 0 auto;
  border-radius: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--accent);
  color: #fff;
  font-size: 5rem;
  border: 7px solid #fff;
  box-shadow: 0 0.5rem 1.5rem rgba(0, 0, 0, 0.15);
}

.about-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  margin: 0 0.25rem;
  border-radius: 100%;
  background-color: var(--dark);
  color: #fff;
  text-decoration: none;
  transition: background-color 0.2s ease-in-out;
}

.about-social a:hover {
  background-color: var(--accent);
  color: var(--dark);
}

.about-stat {
  text-align: center;
  padding: 1rem 0;
}

.about-stat-number {
  display: block;
  font-family: "Montserrat", sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
}

.about-stat-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #6c757d;
}

/* ---------- Services ---------- */
#services .fa-stack {
  transition: transform 0.25s ease-in-out;
}

#services .col-md-4:hover .fa-stack {
  transform: translateY(-0.5rem);
}

/* ---------- Footer ---------- */
.footer {
  background-color: #f8f9fa;
  text-align: center;
  font-size: 0.9rem;
}

.footer a:hover {
  color: var(--accent-dark) !important;
}