:root{
  --main-bg: #0a0a0a;
  --main-color: #00fff2;
  --accent-color: #04c5e7;
  --text-color: #ffffff;
  --text-color-invert: #000000;
  --sub-color: #cccccc;
  --high-light-color: #39FF14;

}

a{
  color: inherit;
  text-decoration: none; /* 下線を消す */
}

body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  background-color: var(--main-bg);
  color: var(--text-color);
  /*背景グリッド*/
  background-image:
    linear-gradient(rgba(0, 238, 255, 0.2) 1px, transparent 3px),
    linear-gradient(90deg, rgba(0, 240, 255, 0.2) 1px, transparent 3px);
  background-size: 50px 50px;

}

.hero {
  /*background: radial-gradient(circle at center, #111 0%, #000 100%);*/
  color: var(--main-color);
  text-align: center;
  padding: 50px 20px;
}

.hero .site-logo {
  width: 80%;
}

.hero h1 {
  font-size: 2.5em;
  margin-bottom: 10px;
}

.hero p {
  font-size: 1.2em;
  color: var(--text-color);
}

.cta-button {
  display: inline-block;
  margin-top: 30px;
  padding: 12px 28px;
  color: var(--text-color-invert);
  background-color: var(--main-color);
  text-decoration: none;
  font-weight: bold;
  border-radius: 6px;
  transition: background 0.3s, transform 0.3s;
}

.cta-button:hover {
  background-color: #00cccc;
  transform: scale(1.05);
}

.section {
  padding: 60px 20px;
  text-align: center;
}

.section h2 {
  color: var(--main-color);
  font-size: 2.0em;
  margin-bottom: 30px;
}


.cards {
  margin: 0 auto;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;

}

.card {
  display: flex;
  margin: 30px auto;
  padding: 50px 30px;
  background-color: #1f1f1f;
  border-radius: 10px;
  max-width: 1000px;
  box-shadow: 0 0 10px rgba(0,255,255,0.2);
  transition: transform 0.3s;
}

.card:hover {
  transform: translateY(-10px);
}

.service{
  flex: 1;
  text-align: left;
  padding: 0 20px 0 20px;
}

.product{
  flex: 1;
  position: relative;
  width: 200px;
  height: 200px;  
  margin: 0 20px 0 20px;
  color: var(--main-color);
  transition: transform 0.3s;
}

.product p{
  font-size: 18px;
  line-height: 1.4;
}

.product::before,
.product::after {
  content: "";
  position: absolute;
  width: 20px;
  height: 20px;
  border: 3px solid #ffffff;
}

.product::before {
  top: 0;
  left: 0;
  border-right: none;
  border-bottom: none;
}

.product::after {
  bottom: 0;
  right: 0;
  border-left: none;
  border-top: none;
  
}

/*製品1 - おはなしつくーる*/
.product.pd-01{
  transition: 
      transform 0.3s,
      background-color 0.5s ease,
      color 0.5s ease,
      font-family 0.5s ease;
      
}
.product.pd-02{
  transition: 
      transform 0.3s,
      background-color 0.5s ease,
      color 0.5s ease,
      font-family 0.5s ease;
}
.product.pd-03{
  transition: 
      transform 0.3s,
      background-color 0.5s ease,
      color 0.5s ease,
      font-family 0.5s ease;
}
.product.pd-04{
  transition: 
      transform 0.3s,
      background-color 0.5s ease,
      color 0.5s ease,
      font-family 0.5s ease;
}

/*製品1 - おはなしつくーる*/
.product.pd-01:hover{
  transform: scale(1.15);
  color: rgb(255, 255, 255);
  background-color: rgba(200, 253, 255, 0.9);
  font-family: 'Kosugi Maru', sans-serif;
  /*
  text-shadow:
  0 0 2px rgb(120, 255, 255),
  0 0 5px rgb(120, 255, 255),
  0 0 10px rgb(120, 255, 255);
  */

  text-shadow:
      -1px -1px 0 #664e4d,
      1px -1px 0 #664e4d,
      -1px 1px 0 #664e4d,
      1px 1px 0 #664e4d;
}

.product.pd-01:hover .product-name{
  margin: 30px 0 0 0; 
}
.product.pd-01:hover .product-description{
  margin: 25px 0 0 0; 
}
.product.pd-01:hover .product-name span:nth-child(1){
  color: #ffdf4e;
}
.product.pd-01:hover .product-name span:nth-child(2){
  color: #7bcaff;
}
.product.pd-01:hover .product-name span:nth-child(3){
  color: #ffa0a0;
}
.product.pd-01:hover .product-name span:nth-child(4){
  color: #aeff7f;
}
.product.pd-01:hover .product-name span:nth-child(5){
  color: #7bcaff;
}
.product.pd-01:hover .product-name span:nth-child(6){
  color: #aeff7f;
}
.product.pd-01:hover .product-name span:nth-child(7){
  color: #7bcaff;
}

/*製品2 - 優雅変換*/
.product.pd-02:hover{
  transform: scale(1.15);
  color: rgb(82, 57, 29);
  background-color: rgba(255, 236, 184, 0.9);
  font-family: 'Noto Serif JP', serif;
}

/*製品3 - 蘇神*/
.product.pd-03:hover{
  transform: scale(1.15);
  color: rgb(139, 41, 41);
  background-color: rgba(252, 231, 204, 0.9);
  font-family: "Yuji Syuku", serif;
}

/*製品4 - THE POSTER*/
.product.pd-04:hover{
  transform: scale(1.15);
  color: rgb(255, 255, 255);
  background-color: rgba(248, 72, 49, 0.9);
  font-family: 'Orbitron', sans-serif;
}

.product.pd-04.product-description{
  transition: 
      color 0.5s ease,
}
.product.pd-04:hover .product-description{
  color: rgb(19, 33, 70);
}

.card h3{
  font-size: 24px;
  margin: 0 0 10px 0;
  padding: 0 0 0 10px;
  border-left: 5px solid var(--accent-color);
}
.product h4{
  font-size: 30px;
  margin: 20px 0;
}

.product-link{
  display: block;
  width: 100%;
  height: 100%;
  text-decoration: none;
  color: inherit;
}

.anchor-inner{
    padding: 10px 20px 10px 20px;
}

form {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 400px;
  margin: 0 auto;
}



input, textarea {
  padding: 12px;
  background-color: #111;
  color: #e0e0e0;
  border: 1px solid #333;
  border-radius: 6px;
}

button {
  padding: 12px;
  background-color: #00ffff;
  color: #000;
  border: none;
  border-radius: 6px;
  font-weight: bold;
  cursor: pointer;
  transition: background 0.3s;
}

button:hover {
  background-color: #00cccc;
}

footer {
  text-align: center;
  padding: 20px;
  background-color: #111;
  color: var(--sub-color)
}

.background-video {
  width: 60vw;
}

.contact-link {
  display: inline-block;
  width: 250px;
  margin: 20px 0 10px 10px;
  padding: 10px 20px;
  background-color: var(--main-color);
  color: #000;
  text-decoration: none;
  border-radius: 6px;
  transition: background-color 0.3s, transform 0.3s;
}

.mainhp-link {
  display: inline-block;
  width: 250px;
  margin: 20px 0 10px 10px;
  padding: 10px 20px;
  background-color: var(--text-color);
  color: #000;
  text-decoration: none;
  border-radius: 6px;
  transition: background-color 0.3s, transform 0.3s;
}

/* --- スマホ対応レスポンシブCSS --- */
@media (max-width: 768px) {
  .hero {
    height: 40vh;
    min-height: 220px;
    padding: 0;
  }
  .background-video{
    width: 100%;
  }
  .site-logo {
    left: 12px;
    top: 12px;
    padding: 20px 0;
  }
  .hero-content h1 {
    font-size: 1.3rem;
  }
  .hero-content p {
    font-size: 1rem;
  }
  .cta-button {
    font-size: 1rem;
    padding: 10px 20px;
  }
  #services{
    margin: 300px 0 0 0;
  }
  .cards {
    margin: 0;
  }
  .card {
    display: block;
    margin: 0 auto;
    padding: 50px 10px 20px 10px;
    font-size: 1rem;
  }
  .product{
    /*display: none;*/
    width: auto;
    margin: 30px 20px;
    min-height: 160px;
    transition: 
      transform 0.3s;
  }
  .section{
    padding: 40px 0;
    transform: none;
  }
  .card:hover{
    transform: none;
  }
  /*
  .card:hover .product{
    display: block;
  }*/

  section.section {
  }
  
}

@media (max-width: 480px) {
  .hero {
    height: 28vh;
    min-height: 120px;
  }
  .hero-content h1 {
    font-size: 1rem;
  }
  .site-logo {
    left: 6px;
    top: 6px;
  }
}

/*追加分＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝*/
.neon {
  color: #0ff;
  text-shadow:
    0 0 2px #0ff,
    0 0 5px #0ff,
    0 0 10px #0ff;
  font-family: 'Orbitron', sans-serif;
  font-size: 2.5rem;
}