:root {
  color-scheme: light;
  --ink: #2f2630;
  --muted: #766c75;
  --pink-grid: #fdadd8;
  --pink-line: #fcd3e6;
  --window-shadow: #fcdfb1;
  --purple: #534bad;
  --purple-hover: #40398c;
  --replace-bg: #fff2a8;
  --replace-ink: #6d2c91;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  min-height: 100%;
  background-color: var(--pink-grid);
  background-image: url("../assets/bg-grid.png");
  background-repeat: repeat;
  background-size: 12px 12px;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans TC", sans-serif;
  background: transparent;
}

.about-page {
  display: flex;
  width: 100%;
  min-height: 100svh;
  flex-direction: column;
  align-items: center;
  padding: max(32px, env(safe-area-inset-top)) 24px max(32px, env(safe-area-inset-bottom));
}

.about-window {
  position: relative;
  width: min(100%, 680px);
  scroll-margin-top: 24px;
}

.about-window-panel {
  position: relative;
  isolation: isolate;
}

.about-window-panel::before {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--window-shadow);
  border-radius: 12px;
  content: "";
  pointer-events: none;
  transform: translate(6px, 5px);
}

.about-titlebar {
  position: relative;
  z-index: 0;
  display: flex;
  width: 100%;
  height: 38px;
  align-items: flex-start;
  padding: 8px 16px 16px;
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  line-height: 14px;
  background: linear-gradient(
    90deg,
    #acb1fd 0%,
    #a696fc 30.258%,
    #9c97fc 47.596%,
    #97a9fc 74.185%,
    #ac9bfc 100%
  );
  border: 1px solid #000;
  border-radius: 12px 12px 0 0;
  box-shadow: inset 1px 1px 0 #000, inset 3px 1px 0 #fffffd;
}

.about-content {
  position: relative;
  z-index: 1;
  margin-top: -10px;
  padding: 30px clamp(20px, 5vw, 48px) 36px;
  background: #fff;
  border: 1px solid #000;
  border-radius: 12px;
  box-shadow: inset 3px 0 0 var(--pink-line);
}

.about-heading {
  padding-bottom: 24px;
  border-bottom: 2px solid #d9d9d9;
}

h1 {
  margin: 0;
  color: #00000e;
  font-size: clamp(28px, 7vw, 40px);
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: -.03em;
}

section {
  margin-top: 36px;
}

h2 {
  margin: 0 0 14px;
  color: #00000e;
  font-size: 18px;
  line-height: 1.45;
}

p {
  margin: 18px 0 0;
  font-size: 16px;
  line-height: 1.85;
}

.game-visual {
  margin: 18px 0 24px;
}

.game-visual img {
  display: block;
  width: 100%;
  height: auto;
}

.game-cta {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  margin-top: 22px;
  padding: 12px 22px;
  color: #fff;
  font-size: 16px;
  font-weight: 800;
  line-height: 1.4;
  text-align: center;
  text-decoration: none;
  background: var(--purple);
  border: 1px solid #000;
  border-radius: 999px;
  box-shadow: 4px 4px 0 #f4b5d4;
  transition: transform 150ms ease, box-shadow 150ms ease, background-color 150ms ease;
}

.game-cta:hover {
  color: #fff;
  background: var(--purple-hover);
  box-shadow: 2px 2px 0 #f4b5d4;
  transform: translate(2px, 2px);
}

.game-cta:focus-visible {
  outline: 3px solid #7b4ce2;
  outline-offset: 4px;
}

.contact-line {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

/* 黃色標示代表正式發布前一定要替換的文字。 */
.replace-me {
  display: inline-block;
  padding: 4px 8px;
  color: var(--replace-ink);
  font-weight: 800;
  line-height: 1.45;
  background: var(--replace-bg);
  border: 2px dashed #a963c5;
  border-radius: 6px;
}

@media (max-width: 560px) {
  .about-page {
    padding-right: 24px;
    padding-left: 24px;
  }

  .about-content {
    padding-right: 20px;
    padding-left: 20px;
  }

  .game-cta {
    width: 100%;
  }
}

@media (max-width: 360px) {
  .about-page {
    padding-right: 18px;
    padding-left: 18px;
  }

  .about-content {
    padding-right: 17px;
    padding-left: 17px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
  }
}