:root {
  color-scheme: dark;
  --ink: #f4f5ef;
  --muted: #9aa9a8;
  --line: rgba(155, 190, 185, .2);
  --night: #071416;
  --panel: #0c2022;
  --accent: #49d3c4;
  --cobalt: #356de8;
}

* { box-sizing: border-box; }

html,
body {
  width: 100%;
  min-width: 0;
  height: 100%;
  margin: 0;
  overflow: hidden;
  color: var(--ink);
  background: var(--night);
  font-family: Pretendard, "Noto Sans KR", "Apple SD Gothic Neo", sans-serif;
}

button,
a { font: inherit; }

.html-reader-shell {
  height: 100vh;
  height: 100dvh;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  background:
    radial-gradient(circle at 86% 2%, rgba(53, 109, 232, .18), transparent 27rem),
    var(--night);
}

.html-reader-toolbar {
  z-index: 2;
  min-height: 76px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 20px;
  align-items: center;
  padding: 11px clamp(14px, 2.5vw, 34px);
  border-bottom: 1px solid var(--line);
  background: rgba(7, 20, 22, .96);
  box-shadow: 0 9px 35px rgba(0, 0, 0, .18);
}

.html-reader-back,
.html-reader-actions a,
.html-reader-actions button {
  min-height: 40px;
  display: inline-flex;
  gap: 7px;
  align-items: center;
  justify-content: center;
  padding: 0 13px;
  color: var(--ink);
  background: rgba(255, 255, 255, .035);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 12px;
  font-weight: 750;
  text-decoration: none;
  cursor: pointer;
}

.html-reader-back:hover,
.html-reader-actions a:hover,
.html-reader-actions button:hover,
.html-reader-back:focus-visible,
.html-reader-actions a:focus-visible,
.html-reader-actions button:focus-visible {
  color: #fff;
  border-color: var(--accent);
  outline: none;
}

.html-reader-title {
  min-width: 0;
  display: grid;
  grid-template-columns: auto minmax(0, auto) auto;
  gap: 8px 14px;
  align-items: baseline;
}

.html-reader-title small {
  color: var(--accent);
  font-size: 9px;
  font-weight: 850;
  letter-spacing: .2em;
}

.html-reader-title strong {
  overflow: hidden;
  font-family: "Noto Serif KR", "Nanum Myeongjo", serif;
  font-size: clamp(16px, 1.7vw, 22px);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.html-reader-title span {
  overflow: hidden;
  color: var(--muted);
  font-size: 11px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.html-reader-actions {
  display: flex;
  gap: 7px;
  align-items: center;
}

.html-reader-actions a {
  color: #fff;
  background: var(--cobalt);
  border-color: transparent;
}

.html-reader-stage {
  position: relative;
  min-width: 0;
  min-height: 0;
  padding: clamp(4px, .7vw, 10px);
  background: #d8d9d3;
}

.html-reader-stage iframe {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  display: block;
  background: #f8f7f1;
  border: 0;
  border-radius: 5px;
}

.html-reader-loading {
  position: absolute;
  inset: 50% auto auto 50%;
  margin: 0;
  color: #314443;
  font-size: 13px;
  font-weight: 750;
  transform: translate(-50%, -50%);
}

.html-reader-stage.is-ready .html-reader-loading { display: none; }

.html-reader-stage:fullscreen {
  padding: 0;
  background: #f8f7f1;
}

.html-reader-stage:fullscreen iframe { border-radius: 0; }

@media (max-width: 720px) {
  .html-reader-toolbar {
    min-height: 108px;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 8px 11px;
    padding: 9px 10px;
  }

  .html-reader-back {
    min-width: 42px;
    padding: 0 9px;
  }

  .html-reader-back span:last-child { display: none; }

  .html-reader-title {
    grid-template-columns: 1fr auto;
    gap: 2px 8px;
  }

  .html-reader-title small { grid-column: 1 / -1; }
  .html-reader-title strong { font-size: 15px; }
  .html-reader-title span { max-width: 85px; }

  .html-reader-actions {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .html-reader-actions a,
  .html-reader-actions button {
    min-height: 34px;
    padding: 0 7px;
    font-size: 11px;
  }

  .html-reader-stage { padding: 0; }
  .html-reader-stage iframe { border-radius: 0; }
}

@media (max-width: 360px) {
  .html-reader-actions a,
  .html-reader-actions button { font-size: 10px; }
}

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