/* GLOBAL */

@font-face {
  font-family: 'Inter';
  src: url('/assets/fonts/Inter-Regular.woff2') format('woff2');
  font-display: swap;
}

:root {
  --hero: #1c1c1f;
  --body: #1c1c1f;
  --black: #020202;
  --white: #f0f0f0;
  --footer: #0a0d18;
  --accent-color: #f2a71d;

  --border-radius: 1rem;

  --primary-font: 'Inter', sans-serif;
  --secondary-font: system-ui, sans-serif;
}

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

html {
  font-size: 100%;
}

body {
  background-color: var(--body);
  color: var(--white);
  font-family: var(--primary-font);
  letter-spacing: 0.025em;
}

a {
  color: var(--accent-color);
  font-weight: 500;
  text-decoration: none;
}

button {
  cursor: pointer;
}

button,
input,
textarea,
select {
  font-size: inherit;
  font-family: inherit;
}

a,
button,
summary {
  outline-offset: 0.5rem;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

h1,
h2,
h3 {
  text-wrap: balance;
}

p {
  text-wrap: pretty;
  line-height: 1.4;
}

/* COMMON CLASSES */

.section {
  padding: 5rem 2.5rem;
}

.container {
  max-width: 43.75rem;
  margin: 0 auto;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 500;
  text-align: center;
  width: 80%;
  margin: 0 auto;
}

.highlighter-svg-container {
  margin-top: 2rem;
  display: grid;
  place-items: center;
}

/* HERO SECTION */

.hero-section {
  background-color: var(--hero);
  padding: 7.5rem 2.5rem 2.5rem;
  text-align: center;
}

.hero-section .container {
  max-width: 60rem;
  margin: 0 auto;
}

.hero-title {
  font-size: 5rem;
  line-height: 1.1;
}

.hero-subtitle {
  font-size: 1.5rem;
  font-weight: 400;
  max-width: 80%;
  margin: 1.875rem auto 0;
}

.hero-subtitle-span {
  color: var(--accent-color);
  font-weight: 500;
  opacity: 1;
}

/* AREAS SECTION */

.areas {
  margin-top: 3.75rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
}

.area-link {
  border-radius: var(--border-radius);
  background-color: #eae8e8;
  padding: 2.5rem 1.25rem;
  min-height: 100%;
  text-align: center;
  gap: 0.625rem;
  transition: filter 0.3s;
}

.area-link:hover {
  filter: opacity(80%);
}

.area-link.seo {
  background-color: #ffeaea;
}

.area-link.ux {
  background-color: #dbe8fa;
}

.area-link.velocity {
  background-color: #e6fff3;
}

.area-link.accessibility {
  background-color: #e3dfff;
}

.area-link svg {
  width: 3.75rem;
  height: 3.75rem;
}

.area-heading {
  display: block;
  margin: 0.5rem 0 0.25rem;
  font-size: 1.5rem;
  color: #0a0d18;
  text-align: center;
}

.area-description {
  display: block;
  font-size: 1.125rem;
  color: #0a0d18;
  text-align: center;
}

/* USEFUL SITES SECTION */

.sites {
  margin-top: 3.75rem;
  display: grid;
  justify-content: center;
  gap: 1.25rem;
}

.site-link {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 80%;
  margin: 0 auto;
  padding: 1rem;
  border: 2px solid var(--body);
}

.site-link:hover {
  border-radius: var(--border-radius);
  border: 2px solid lightgray;
}

.site-logo {
  border-radius: var(--border-radius);
}

.site-heading {
  margin-top: 2rem;
  font-size: 1.25rem;
  text-align: center;
}

.site-description {
  margin-top: 0.5rem;
  font-size: 1.125rem;
  text-align: center;
  text-wrap: balance;
  color: var(--white);
  opacity: 0.85;
}

/*=============================== 
SECTION: FAQS
================================*/

.faqs {
  margin-top: 3.75rem;
  display: grid;
  gap: 1.25rem;
}

.details {
  border-radius: var(--border-radius);
  background-color: var(--hero);
  background-color: rgba(10, 13, 24, 0.65);
}

.summary {
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.25rem;
  padding: 1.25rem;
}

.summary h3 {
  font-size: 1.25rem;
  font-weight: 500;
  line-height: 1.4;
}

.summary-icon {
  min-width: 2.4rem;
  height: 2.4rem;
  fill: var(--accent-color);
  transition: transform .3s ease;
}

.details[open] .summary-icon {
  transform: rotate(180deg);
}

.answer {
  padding: 0 1.25rem 1.25rem;
  width: 90%;
  font-size: 1.125rem;
  opacity: 0.85;
}

.answer-grid {
  display: grid;
  gap: 1rem;
}

/* CALL TO ACTION */

.call-to-action {
  margin-top: 3.75rem;
  display: grid;
  gap: 2.5rem;
}

.call-to-action p {
  font-size: 1.125rem;
  text-align: center;
  opacity: 0.85;
  width: 80%;
  margin: 0 auto;
}

.email-link {
  text-decoration: underline;
}

/* FOOTER */

.footer {
  background-color: var(--footer);
  padding: 5rem 2.5rem;
}

.footer p {
  font-family: var(--secondary-font);
  font-size: 1.125rem;
  font-weight: 300;
  text-align: center;
  opacity: 0.85;
  margin-bottom: 1.25rem;
}

.footer .icons {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.625rem;
}

.footer a {
  color: var(--white);
  opacity: 0.8;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 0.2rem;
  transition: color 0.4s;
}

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

.github-icon,
.linkedin-icon,
.website-icon {
  width: 2rem;
  height: 2rem;
}

/* RESPONSIVE */

/* 576px */
@media (max-width: 36rem) {
  .section {
    padding: 2.5rem 1.25rem;
  }

  .section-title {
    font-size: 1.625rem;
    width: 100%;
  }

  .hero-section {
    padding: 4.5rem 1.25rem 2rem;
  }

  .hero-title {
    font-size: 3.75rem;
  }

  .hero-subtitle {
    margin-top: 1.25rem;
    font-size: 1.125rem;
    max-width: 100%;
  }

  .areas {
    grid-template-columns: 1fr;
  }

  .area-link {
    padding: 1.25rem;
  }

  .area-link:hover {
    filter: opacity(100%);
  }

  .area-link svg {
    width: 2.5rem;
    height: 2.5rem;
  }

  .site-link {
    font-size: 1rem;
    width: 100%;
  }

  .site-link:hover {
    border: 2px solid var(--body);
  }

  .call-to-action p {
    width: 90%;
  }

  .footer {
    padding: 2.5rem 1.25rem;
  }

  .footer p {
    font-size: 1rem;
  }

  .footer a:hover {
    color: var(--white);
  }

  .github-icon,
  .linkedin-icon,
  .website-icon {
    width: 1.875rem;
    height: 1.875rem;
  }
}

/* 320px */
@media (max-width: 20rem) {
  .hero-title {
    font-size: 3rem;
  }
}