/* =========================
   Global Reset
========================= */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  background-color: #f9fafb;
  color: #1f2937;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* =========================
   Typography
========================= */
h1,
h2,
h3,
h4 {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  line-height: 1.25;
  margin-top: 0;
  color: #111827;
}

h1 {
  font-size: 2.25rem;
  margin-bottom: 1rem;
}

h2 {
  font-size: 1.75rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

h3 {
  font-size: 1.25rem;
  margin-top: 1.5rem;
}

p {
  margin-bottom: 1rem;
  max-width: 65ch;
}

ul {
  padding-left: 1.25rem;
}

li {
  margin-bottom: 0.5rem;
}

/* =========================
   Layout
========================= */
header {
  background: #ffffff;
  padding: 1.5rem 2rem;
  border-bottom: 1px solid #e5e7eb;
}

.site-title {
  font-family: 'Poppins', sans-serif;
  font-size: 1.5rem;
  font-weight: 600;
}

nav {
  background: #ffffff;
  border-bottom: 1px solid #e5e7eb;
  position: relative;
}

nav a {
  text-decoration: none;
  font-weight: 500;
  color: #1f2937;
}

nav a:hover {
  color: #2563eb;
}

main {
  padding: 2rem;
  max-width: 960px;
  margin: 0 auto;
}

footer {
  margin-top: 4rem;
  padding: 2rem;
  background: #ffffff;
  border-top: 1px solid #e5e7eb;
  text-align: center;
  font-size: 0.9rem;
  color: #4b5563;
}

/* .footer-icon {
  height: 1em;
  width: auto;
  vertical-align: -0.15em;
  margin-right: 0.05em;
} */

.mainLogo {
  height: 1em;
  width: auto;
  vertical-align: -0.15em;
  margin-right: 0.05em;
}

.site-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 1.5rem;
  padding: 0;
  margin: 0;
}

.menu-toggle {
  display: none;
  font-size: 1.5rem;
  background-color: #ffffff;
  color: #222;
  border: 2px solid #222;
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  cursor: pointer;
}

.menu-toggle:focus {
  outline: 3px solid #4c9aff;
  outline-offset: 2px;
}

.validation {
  color: red
}

/* =========================
   Links
========================= */
a {
  color: #2563eb;
  text-decoration: underline;
}

a:hover {
  color: #1d4ed8;
}

a:focus {
  outline: 3px solid #2563eb;
  outline-offset: 2px;
}

/* =========================
   Buttons
========================= */
button {
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  padding: 0.6rem 1rem;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  background-color: #2563eb;
  color: white;
  transition: background-color 0.2s ease;
}

button:hover {
  background-color: #1d4ed8;
}

button:focus {
  outline: 3px solid #1d4ed8;
  outline-offset: 2px;
}

/* =========================
   Forms
========================= */
label {
  display: block;
  margin-bottom: 0.4rem;
  font-weight: 500;
  margin-top: 1rem;
}

input,
textarea,
select {
  width: 100%;
  padding: 0.6rem;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  font-family: inherit;
  font-size: 1rem;
  /* margin-bottom: 1rem; */
}

input:focus,
textarea:focus,
select:focus {
  outline: 3px solid #2563eb;
  border-color: #2563eb;
}

/* =========================
   Code Blocks
========================= */
pre {
  background: #111827;
  color: #f9fafb;
  padding: 1rem;
  overflow-x: auto;
  border-radius: 6px;
}

code {
  font-family: monospace;
}

/* =========================
   Accessibility Enhancements
========================= */
:focus-visible {
  outline: 3px solid #2563eb;
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* =========================
   Responsive Navigation
========================= */
@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }

  .nav-list {
    display: none;
    /* hidden by default */
    flex-direction: column;
    gap: 1rem;
    position: absolute;
    /* position below nav */
    top: 60px;
    /* right below nav */
    left: 0;
    width: 100%;
    background-color: #ffffff;
    padding: 1rem 2rem;
    border-top: 1px solid #e5e7eb;
    z-index: 1000;
    /* appear on top of everything */
  }

  .nav-list.active {
    display: flex;
    /* JS toggles this */
  }

  main {
    padding: 1.5rem;
  }

}