:root {
    /* =========================================================
       Color System
    ========================================================= */
    --bg-deep: #00050d;
    --text-light: #e0f2ff;
    --accent-blue: #0044ff;
    --accent-cyan: #00f2ff;
    --core-gold: #c5a059;

    /* =========================================================
       Font System
    ========================================================= */
    --font-base: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

    /* Title（Wallpoet） */
    --font-title: "PrismTitle", var(--font-base);

    /* Display（Unica One） */
    --font-display: "PrismDisplay", var(--font-base);

    /* Script（Story Script） */
    --font-script: "PrismScript", cursive;
}

html {
    min-height: 100%;
}

body {
    margin: 0;
    background-color: var(--bg-deep);
    color: var(--text-light);
    font-family: var(--font-base);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: inherit;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

a:visited {
    color: inherit;
}

a:hover {
    opacity: 0.7;
}

.pc_only {
  display: inline;
}

.sp_only {
  display: none;
}

.l-footer-copy {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;

    text-align: center;

    font-size: 0.75rem;
    letter-spacing: 0.14em;
    line-height: 1.7;

    color: rgba(224, 242, 255, 0.5);
    opacity: 0.6;

    padding-bottom: 4px;
}

.l-footer-copy a {
    color: inherit;
    text-decoration: none;
}

.l-footer-copy .copy {
    font-family: var(--font-title);
    letter-spacing: 0.12em;
}

.l-footer-copy .copy_line {
  display: block;
}

@media (min-width: 768px) {
    .l-footer-copy .copy {
        text-align: left;
        padding-left: 24px;
    }
}

@media (max-width: 767px) {

  .pc_only {
    display: none;
  }

  .sp_only {
    display: block;
  }

  .l-footer-copy .copy {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;

    font-size: 0.65rem;
    letter-spacing: 0.12em;
    line-height: 1.4;
    text-align: center;

    white-space: normal;
  }

  .l-footer-copy .copy a {
    display: inline;
  }
}