:root {
  --paper: oklch(100% 0 0);
  --ink: oklch(20% 0 0);
  --font: 100%/1.5 system-ui;
  --space: clamp(10px, 1vw + 10px, 40px);
  --line: 1px solid;
  --container: 1280px;
  --base: linear-gradient(90deg, rgba(2, 0, 36, 1) 0%, rgba(9, 9, 121, 1) 39%, rgba(0, 212, 255, 1) 100%);
  --cards: radial-gradient(circle, rgba(227, 233, 241, 1) 0%, rgba(227, 233, 241, 1) 12%, rgba(227, 233, 241, 1) 5%, rgba(226, 233, 240, 1) 36%, rgba(202, 219, 238, 1) 53%, rgba(191, 212, 237, 1) 60%, rgba(200, 217, 238, 1) 75%, rgba(215, 226, 239, 1) 100%, rgba(148, 187, 233, 1) 100%, rgba(242, 242, 242, 1) 100%);
  --text-sm: clamp(0.8rem, 0.17vw + 0.76rem, 0.89rem);
  --text-base: clamp(1rem, 0.34vw + 0.91rem, 1.19rem);
  --text-p: clamp(0.91rem, 0.61vw + 1.1rem, 1rem);
  --text-h2: clamp(1.56rem, 1vw + 1.31rem, 2.11rem);
  --text-h3: clamp(1rem, 8vw + 1rem, 2rem);
  --title: clamp(1rem, 6vw + 1rem, 3rem);
  --footer-h3: #f18930;
}


header {
  width: 80%;
  text-align: center;
  color: var(--paper);
  margin: auto;
}

body {
  background: var(--base);
  background-attachment: fixed;
  font-family: system-ui, sans-serif;
  margin: 0;
  padding-bottom: 12rem;
}



main {
  width: 70%;
  max-width: var(--container);
  margin: 0 auto calc(var(--space) * 3) auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space);

  >*:first-child {
    grid-column: span 2;
  }
}

h1 {
  font-size: var(--title);
}

h2 {
  color: blue;
  font-size: var(--text-h2);
}

p {
  font-size: var(--text-p);
  margin-top: 0;
  margin-bottom: 1rem;
  line-height: 1.5;
}


section,
article {
  background: var(--cards);
  border: var(--line);
  padding-bottom: var(--space);
  text-align: left;
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  grid-template-columns: var(--space) 1fr var(--space);
  row-gap: 1rem;

  >* {
    grid-column: 2/3;
  }

  >img {
    grid-column: span 3;
    /* background-size: cover; */
    width: 100%;
    object-fit: cover;
    height: auto;
  }
}

/* ---------------  button section and article  ----------------- */
.a-button {
  grid-column: 2 / 3;
  justify-self: start;
  align-self: end;
  width: 120px;
  text-align: center;
  padding: 10px 0;
  border: var(--line);
  text-decoration: none;
  margin-top: var(--space);
  background: var(--base);
  color: white;
  position: relative;
  display: inline-block;
}


.a-button:hover {
  color: blue;
  background: #a7f4c4;
  border-color: #fffdef;
  box-shadow: inset 0 0 5px rgba(255, 253, 239, 0.2);
  transform: scale(1.05);
}

.a-button:hover::after {
  opacity: 1;
  filter: drop-shadow(0 10px 8px #fffdef);
  transform: translateY(-8px) rotate(15deg);
}

.a-button::after {
  content: "★★";
  position: absolute;
  top: -12px;
  right: -8px;
  color: #fffdef;
  font-size: 18px;
  opacity: 0;
  transition: all 0.3s ease;
  pointer-events: none;
}


/* ------------------- footer ----------------------- */
footer {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: #343434;
  color: var(--paper);
  margin: 7rem, 0 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: flex-start;
  z-index: 1000;
  height: 15rem;

  .footer-content {
    flex: 1;
    min-width: 200px;
    max-width: 400px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;

    h3 {
      font-size: 1rem;
      color: var(--footer-h3)
    }

    p {
      margin: 5px 0;
      font-size: 12px;
    }
  }

/* ------------------- links list ----------------------- */
.list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;

  li {
    position: relative;
    font-size: 12px;
    padding-bottom: 2px;

    a {
      all: unset;
      cursor: pointer;
      color: var(--paper);
    }

    &::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 50%;
      width: 0;
      height: 2px;
      background-color: var(--footer-h3);
      transition: all 0.4s ease;
      transform: translateX(-50%);
    }

    &:hover::after {
      width: 85%;
    }

    &:hover a {
      color: var(--footer-h3)
    }
  }
}

/* ---------------- Social Icons links ----------------------- */
  .socials-icons {
    display: flex;
    justify-content: center;
    gap: 30px;


    a {
      all: unset;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      transition: transform 0.3s ease;
      width: 40px;
      height: 40px;
    } 

    i {
      font-size: 20px;
      color: var(--paper);
      display: block;
    }

    a:hover i {
      color: var(--footer-h3)
    }

    a:hover {
      transform: translateY(-5px) scale(1.2);
    }
  }

  .botton-bar {
    width: 100%;
    background: var(--footer-h3);
    margin-top: auto;
    display: flex;
    justify-content: center;
    align-items: center;

    p {
      color: #343434;
      margin: 0;
      padding: 8px 0;
      font-size: 14px;
      font-weight: bold;
    }
  }
}