:root {
  --stroke-color: rgba(234, 89, 6, 0.756);
  --base-background:rgb(63, 63, 63);
}

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

header {
    position: relative;
    top: 0;
    left: 0;
    right: 0;
    z-index: 500;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    transition: all 0.3s ease;
}

body {
    overflow-x: hidden;
    background: black;
    color: white;
    font-family: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Helvetica Neue", Arial, Meiryo,sans-serif;
}

section {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  opacity: 0;
  z-index: 0;
  transition: opacity 0.5s ease;
}

section.active {
  opacity: 1;
  z-index: 10;
}

.section-title {
  font-size: 2em;
  margin-bottom: 1.5em;
  color: #f5f5f5;
}

.section-content{
  position: absolute;
  width: calc(100% - 80px);
  padding: 1em;
  box-sizing: border-box;
  overflow-y: auto;
}

.right-sidebar {
  position: fixed;
  top: 0;
  right: 2px;
  width: 80px;
  height: 100vh;
  display: flex;
  flex-direction: column;
  text-align: center;
  align-items: center;
  gap: 40px;
  padding: 10px 2px;
  z-index: 1000;
}

h1,h2 {
  color: white;
  margin-bottom: 2%;
  -webkit-text-stroke-width: 1px;
  -webkit-text-stroke-color: var(--stroke-color);
}

h1{
  text-align: center;
}

footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 5px 20px;
    text-align: center;
    background: rgba(0, 0, 0, 0.3);
    color: rgba(255, 255, 255, 0.6);
    font-size: 10px;
    z-index: 1000;
    backdrop-filter: blur(5px);
}

.contact-link {
  display: inline-block;
  margin-top: 10px;
  padding: 10px 16px;
  color: white;
  background-color: rgba(255, 68, 0, 0.4);
  border-radius: 8px;
  text-decoration: none;
  transition: 0.3s;
}

.contact-link:hover {
  background-color: rgba(255, 68, 0, 0.8);
  transform: scale(1.1);
}