*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Elms Sans", sans-serif;
}
html{
  scroll-behavior: smooth;
}
body{
    background: var(--bg);
}
main{
    overflow-x: hidden;
}

:root{
  --fg: #333;
  --bg: #fdfdfd;
  --accent: #0E7E0C;
  --accent-hover: #0c5c0a;
  --nav-Height: 4.2rem;
}

h1,h2{
  font-family: "Source Sans 3", sans-serif;
}

h1{
  margin-top: 0.5rem;
  text-align: center;
  font-size: 3rem;
  color: var(--fg);
  margin-bottom: 2rem;
}

/* navbar */
nav{
  display: flex;
  justify-content: space-between;
  align-items: center;
background: linear-gradient(135deg, #fdfdfda0, #fdfdfd);
  padding: 1rem 2rem;
  box-shadow: 0 4px 12px #0003;
  backdrop-filter: blur(3px);
  z-index: 100000;
  transition: 300ms ease-in-out;
  position: sticky;
  top: 0;
}

nav ul{
  display: none;
  justify-content: center;
  gap: 0.5rem;
}

nav ul li{
  list-style: none;
}

nav ul li a{
  position: relative;
  color: var(--fg);
  font-weight: 300;
  font-size: 1.2rem;
  letter-spacing: 1px;
  padding: 0.5rem 1rem;
  text-decoration: none;
}

nav ul li a::after{
  content: "";
  position: absolute;
  bottom: 0.2rem;
  left: 1rem;
  width: calc(100% - 2rem);
  height: 2px;
  background: var(--fg);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

nav ul li a:hover::after,
nav ul li a.active::after{
  transform: scaleX(1);
}

nav ul li a:hover{
  color: var(--fg);
}

.hamburger{
  display: none;
  flex-direction: column;
  gap: 5px;
  margin-left: auto;
  width: fit-content;
  cursor: pointer;
  position: relative;
  z-index: 10;
}

.hamburger span{
  width: 30px;
  height: 3px;
  background: var(--fg);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.mobile-logo{
  height: 3rem;
  border-radius: 5px;
}

footer a{
  margin: 0 0.5rem;
}

.js .slide-in-left,
.js .slide-in-right, .js .slide-in {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.js .slide-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}
.js .slide-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.js .slide-in.visible{
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: no-preference) {
  .js .slide-in-left {
    transform: translateX(-60px);
  }
  .js .slide-in-right {
    transform: translateX(60px);
  }
  .js .slide-in {
    transform: translateY(40px);
  }
}

@media screen and (max-width: 1000px){
  nav ul li a{font-size: 1rem;padding: 0.5rem 0.75rem;}
}
@media screen and (max-width: 860px){
  nav ul li a{font-size: 0.9rem;padding: 0.5rem 0.5rem;}
}

/* mobile */
@media (max-width: 768px){

  :root{
    --nav-Height: 3.5rem;
  }

  .hamburger{
    display: flex;
  }

  .mobile-logo{
    display: block;
    height: 2.5rem;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    z-index: 1000;
  }

  nav{
    position: sticky;
    height: var(--nav-Height);
    top: 0;
  }
  
  nav ul{
    display: flex;
    visibility: hidden;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    flex-direction: column;
    align-items: center;
    padding: 1rem 0;
    transform: translateY(-100%);
    height: 100vh;
    max-height: 0;
    overflow: hidden;
    pointer-events: none;
    background: linear-gradient(135deg, var(--bg), #dedede);
  }


  nav.nav-open ul{
    visibility: visible;
    max-height: 100vh;
    height: 100vh;
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
    gap: 1.5rem;
    text-align: center;
  }

  nav ul li a::after{
    all: unset;
  }

  nav.nav-open .hamburger span:nth-child(1){
    transform: translateY(8px) rotate(45deg);
  }

  nav.nav-open .hamburger span:nth-child(2){
    opacity: 0;
  }

  nav.nav-open .hamburger span:nth-child(3){
    transform: translateY(-8px) rotate(-45deg);
  }

  nav ul li a{
    font-size: 1.5rem;
    padding: 1rem 2rem;
  }

  .training-container .contact-link{
    font-size: small;
  }
}

/* desktop */
@media (min-width: 769px){
  nav ul{
    display: flex;
  }
}

.primary-btn{
  display: inline-block;
  padding: 0.9rem 2rem;
  background: var(--accent);
  color: var(--bg);
  border-radius: 6px;
  font-size: 1.2rem;
  text-decoration: none;
  transition: 200ms ease;
}

.primary-btn:hover{
  transform: translateY(-3px);
  background: var(--accent-hover);
}

.site-footer {
  background: #f9f9f9;
  color: #333;
  box-shadow: 0 -1px 2rem #0002;
  padding: 3rem 1rem;
  font-family: sans-serif;
  margin-top: 2rem;
}

.footer-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.footer-info, .footer-links, .footer-social {
  flex: 1 1 250px;
}

.footer-links ul {
  list-style: none;
  padding: 0;
}

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

.footer-bottom {
  text-align: center;
  margin-top: 2rem;
  font-size: 0.9rem;
  color: #666;
}

.site-footer a{
  text-decoration: none;
  color: var(--accent);
}

.footer-bottom a{
  margin: 0;
  color: #444;
}

.footer-bottom a:hover{
  text-decoration: underline;
}

section.first{
  margin-top: 4rem;
}

.cta {
  background: #0E7E0C33;
  padding: 60px 20px;
  text-align: center;
  margin: 4rem 0 0;
}

.cta-container {
  max-width: 800px;
  margin: 0 auto;
}

.cta h2 {
  font-size: 2rem;
  color: var(--accent);
  margin-bottom: 16px;
  font-weight: 700;
}

.cta p {
  font-size: 1.1rem;
  color: #2c3e50;
  margin-bottom: 30px;
  line-height: 1.6;
}

.cta-button {
  display: inline-block;
  padding: 14px 32px;
  background-color: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: 1rem;
  border-radius: 25px;
  text-decoration: none;
  transition: background-color 0.3s ease, transform 0.2s ease;
}

.cta-button:hover {
  background-color: var(--accent-hover);
  transform: translateY(-2px);
}