:root {
  --black: #010C01;
  --evergreen: #021901;
  --black-2: #000801;
  --olive-leaf: #195C10;
  --medium-jungle: #15A20B;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;

  color: var(--medium-jungle);

  background-image: url(https://i.ibb.co/whP8RV7J/ezgif-8ca4fed96e4d7e68-upscaled-2-5x.gif);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

/* CONTAINER */
#container {
  width: 100%;
  max-width: 1000px;
  margin: auto;
  padding: 10px;
  box-sizing: border-box;
}

/* HEADER */
#header {
  border-radius: 60px 60px 0 0 / 30px 30px 0 0;

  max-width: 1000px;
  height: 200px;

  background-image: url(https://i.ibb.co/whP8RV7J/ezgif-8ca4fed96e4d7e68-upscaled-2-5x.gif);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;

  border-bottom: 6px solid var(--medium-jungle);

  display: flex;
  align-items: center;
  justify-content: center;

  color: var(--medium-jungle);

  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.7);
}

/* NAV BAR */
#topbar {
  border-radius: 0 0 60px 60px / 0 0 30px 30px;

  background: rgba(0, 8, 1, 0.85);

  padding: 15px;
  text-align: center;

  border-bottom: 2px solid var(--olive-leaf);
}

/* MAIN CONTENT */
#content {
  text-align: center;

  background: rgba(2, 25, 1, 0.88);

  padding: 20px;
  margin-top: 10px;

  border: 1px solid var(--olive-leaf);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);

  color: var(--medium-jungle);

  border-radius: 5px 20px 6px;
}

/* FOOTER */
#footer {
  background: rgba(1, 12, 1, 0.9);

  padding: 15px;
  text-align: center;
  margin-top: 10px;

  border-top: 2px solid var(--olive-leaf);
}

/* BOXES */
.box {
  background: rgba(0, 8, 1, 0.75);

  padding: 15px;
  border-radius: 10px;
  margin-top: 20px;

  border: 1px solid var(--medium-jungle);
}

/* LINKS */
a {
  color: var(--medium-jungle);
}

a:hover {
  color: var(--olive-leaf);
}

/* POSTS (BLOG SYSTEM) */
.post {
  background: rgba(0, 8, 1, 0.9);

  margin-top: 20px;

  border-radius: 12px;

  border: 1px solid var(--olive-leaf);

  color: var(--medium-jungle);

  text-align: left;

  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.6);

  overflow: hidden;
}

.post summary {
  cursor: pointer;
  padding: 20px;
  list-style: none;
}

.post summary::-webkit-details-marker {
  display: none;
}

.post h2 {
  margin: 0;
  color: var(--medium-jungle);
}

.date {
  opacity: 0.7;
  font-size: 14px;
  margin-top: 5px;
}

.post-content {
  padding: 0 20px 20px 20px;
  line-height: 1.6;
}

/* MOBILE */
@media screen and (max-width: 768px) {

  #header {
    height: 150px;
  }

  #content {
    padding: 15px;
  }

  #topbar {
    font-size: 14px;
    padding: 10px;
  }

  .box {
    padding: 12px;
  }
}