/* =========================================================
   /novel/ — a reading sub-site in the ChatGPT web app idiom:
   left history sidebar, quiet top bar, one centered column,
   a "user bubble" for the piece, a composer-shaped next link.
   Shares tokens and fonts with site.css.
   ========================================================= */

.novel-app {
  --nv-side: #f9f9f9;
  --nv-side-hover: #ececec;
  --nv-side-active: #e3e3e3;
  --nv-main: #ffffff;
  --nv-bubble: #f4f4f4;
  --nv-ink: #0d0d0d;
  --nv-ink-2: #5d5d5d;
  --nv-ink-3: #8f8f8f;
  --nv-line: #e5e5e5;
  --nv-composer: #ffffff;
  --nv-col: 720px;
  background: var(--nv-main);
  color: var(--nv-ink);
}

:root[data-theme="dark"] .novel-app {
  --nv-side: #181818;
  --nv-side-hover: #232323;
  --nv-side-active: #2a2a2a;
  --nv-main: #212121;
  --nv-bubble: #303030;
  --nv-ink: #ececec;
  --nv-ink-2: #b4b4b4;
  --nv-ink-3: #8a8a8a;
  --nv-line: #323232;
  --nv-composer: #303030;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .novel-app {
    --nv-side: #181818;
    --nv-side-hover: #232323;
    --nv-side-active: #2a2a2a;
    --nv-main: #212121;
    --nv-bubble: #303030;
    --nv-ink: #ececec;
    --nv-ink-2: #b4b4b4;
    --nv-ink-3: #8a8a8a;
    --nv-line: #323232;
    --nv-composer: #303030;
  }
}

.nv {
  display: flex;
  min-height: 100vh;
}

/* ---------- Sidebar ---------- */

.nv-side {
  position: sticky;
  top: 0;
  flex: 0 0 260px;
  height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 10px 10px 12px;
  background: var(--nv-side);
  overflow-y: auto;
}

.nv-side__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 44px;
  padding: 0 4px 0 8px;
}

.nv-brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 15px;
  font-weight: 600;
  color: var(--nv-ink);
}

.nv-brand .brand__mark {
  height: 18px;
  width: auto;
}

.nv-icon-btn {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--nv-ink-2);
  cursor: pointer;
  transition: background-color 120ms ease, color 120ms ease;
}

.nv-icon-btn:hover {
  background: var(--nv-side-hover);
  color: var(--nv-ink);
}

.nv-side__new {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 6px;
  padding: 9px 10px;
  border-radius: 10px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--nv-ink);
  transition: background-color 120ms ease;
}

.nv-side__new:hover,
.nv-side__list a:hover {
  background: var(--nv-side-hover);
}

.nv-side__new.is-active,
.nv-side__list a.is-active {
  background: var(--nv-side-active);
}

.nv-side__label {
  margin: 22px 10px 6px;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--nv-ink-3);
}

.nv-side__list a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 10px;
  font-size: 14.5px;
  color: var(--nv-ink);
  transition: background-color 120ms ease;
}

.nv-side__title {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nv-side__date {
  flex: 0 0 auto;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--nv-ink-3);
}

.nv-side__foot {
  margin-top: auto;
  padding-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nv-side__theme,
.nv-side__home {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  font-size: 13.5px;
  color: var(--nv-ink-2);
  text-align: left;
  cursor: pointer;
  transition: background-color 120ms ease, color 120ms ease;
}

.nv-side__theme:hover,
.nv-side__home:hover {
  background: var(--nv-side-hover);
  color: var(--nv-ink);
}

/* ---------- Main + top bar ---------- */

.nv-main {
  flex: 1 1 auto;
  min-width: 0;
  background: var(--nv-main);
}

.nv-bar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 4px;
  height: 56px;
  padding: 0 12px;
  background: color-mix(in srgb, var(--nv-main) 92%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.nv-open {
  display: none;
}

.nv-bar__title {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  padding: 7px 10px;
  border-radius: 10px;
  font-size: 17px;
  font-weight: 600;
  color: var(--nv-ink);
  white-space: nowrap;
  transition: background-color 120ms ease;
}

.nv-bar__title:hover {
  background: var(--nv-side-hover);
}

.nv-bar__chev {
  color: var(--nv-ink-3);
  font-weight: 400;
}

.nv-bar__sub {
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: 400;
  color: var(--nv-ink-2);
}

.nv-content {
  padding: 8px 24px 96px;
}

.nv-scrim {
  display: none;
}

/* ---------- Index ---------- */

.nv-index {
  max-width: 980px;
  margin: 0 auto;
}

.nv-index__title {
  margin-top: clamp(40px, 8vh, 96px);
  font-size: clamp(28px, 3.2vw, 34px);
  font-weight: 600;
  letter-spacing: -0.01em;
  text-align: center;
}

.nv-index__lead {
  margin-top: 10px;
  font-size: 15.5px;
  color: var(--nv-ink-2);
  text-align: center;
}

.nv-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 44px 28px;
  margin-top: clamp(36px, 6vh, 64px);
}

.nv-card {
  position: relative;
  display: flex;
  flex-direction: column;
}

.nv-card--lead {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: 28px;
  align-items: center;
}

.nv-card__media {
  position: relative;
  display: block;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-radius: 16px;
  background: var(--nv-bubble);
}

.nv-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 500ms cubic-bezier(0.2, 0.7, 0.2, 1);
}

.nv-card:hover .nv-card__media img {
  transform: scale(1.03);
}

.nv-card__media::after,
.nv-read__cover::after {
  content: "";
  position: absolute;
  inset: 40% 0 0;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.55));
  pointer-events: none;
}

.nv-card__mark {
  z-index: 1;
  position: absolute;
  inset: auto 20px 18px;
  font-size: clamp(20px, 2.4vw, 30px);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: rgba(255, 255, 255, 0.92);
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.35), 0 1px 24px rgba(0, 0, 0, 0.3);
}

.nv-card__body {
  padding-top: 16px;
}

.nv-card--lead .nv-card__body {
  padding-top: 0;
}

.nv-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  font-size: 13px;
  color: var(--nv-ink-3);
}

.nv-card__title {
  margin-top: 8px;
  font-size: 21px;
  font-weight: 600;
  line-height: 1.35;
}

.nv-card--lead .nv-card__title {
  font-size: clamp(24px, 2.4vw, 30px);
}

.nv-card__title a::after {
  content: "";
  position: absolute;
  inset: 0;
}

.nv-card__excerpt {
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--nv-ink-2);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.nv-card--lead .nv-card__excerpt {
  -webkit-line-clamp: 5;
}

/* ---------- Reading ---------- */

.nv-read {
  max-width: var(--nv-col);
  margin: 0 auto;
}

.nv-ask {
  display: flex;
  justify-content: flex-end;
  margin-top: 24px;
}

.nv-ask__bubble {
  max-width: 70%;
  padding: 10px 18px;
  border-radius: 22px;
  background: var(--nv-bubble);
  font-size: 15.5px;
  line-height: 1.6;
}

.nv-ask__bubble span {
  margin-left: 10px;
  font-size: 13px;
  color: var(--nv-ink-3);
}

.nv-read__cover {
  position: relative;
  margin: 28px 0 0;
  aspect-ratio: 16 / 7;
  overflow: hidden;
  border-radius: 16px;
}

.nv-read__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.nv-read__cover figcaption {
  z-index: 1;
  position: absolute;
  inset: auto 24px 20px;
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 600;
  color: rgba(255, 255, 255, 0.92);
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.35), 0 1px 24px rgba(0, 0, 0, 0.3);
}

.nv-read__head {
  margin-top: 32px;
}

.nv-read__title {
  font-size: clamp(26px, 3vw, 32px);
  font-weight: 600;
  line-height: 1.3;
}

.nv-read__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  margin-top: 10px;
  font-size: 13.5px;
  color: var(--nv-ink-3);
}

.nv-prose {
  margin-top: 28px;
  font-size: 17px;
  line-height: 1.95;
  color: var(--nv-ink);
}

.nv-prose p + p {
  margin-top: 1.05em;
}

.nv-prose strong {
  font-weight: 650;
}

.nv-prose ol,
.nv-prose ul {
  margin: 1.05em 0;
  padding-left: 1.4em;
  list-style: decimal;
}

.nv-prose blockquote {
  margin: 0 0 2.2em;
  padding: 16px 20px;
  border-radius: 14px;
  background: var(--nv-bubble);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--nv-ink-2);
}

.nv-prose blockquote p + p {
  margin-top: 0.4em;
}

.nv-prose blockquote strong {
  color: var(--nv-ink);
}

.nv-prose hr.scene-break {
  width: 64px;
  margin: 2.4em auto;
  border: 0;
  border-top: 1px solid var(--nv-line);
}

.nv-read__end {
  margin-top: 3em;
  font-size: 13px;
  letter-spacing: 0.3em;
  color: var(--nv-ink-3);
  text-align: center;
}

.nv-composer {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 48px;
  padding: 10px 10px 10px 22px;
  border: 1px solid var(--nv-line);
  border-radius: 28px;
  background: var(--nv-composer);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.nv-composer:hover {
  border-color: var(--nv-ink-3);
  box-shadow: 0 6px 22px rgba(0, 0, 0, 0.08);
}

.nv-composer__hint {
  font-size: 13.5px;
  color: var(--nv-ink-3);
}

.nv-composer__text {
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 16px;
}

.nv-composer__send {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--nv-ink);
  color: var(--nv-main);
}

.nv-read__note {
  margin-top: 14px;
  font-size: 12px;
  color: var(--nv-ink-3);
  text-align: center;
}

/* ---------- Narrow screens: sidebar becomes a drawer ---------- */

@media (max-width: 900px) {
  .nv-side {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 40;
    width: min(280px, 84vw);
    transform: translateX(-100%);
    transition: transform 220ms cubic-bezier(0.2, 0.7, 0.2, 1);
  }

  .nv.is-open .nv-side {
    transform: none;
  }

  .nv.is-open .nv-scrim {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 30;
    background: rgba(0, 0, 0, 0.35);
  }

  .nv-open {
    display: inline-grid;
  }

  .nv-content {
    padding: 4px 16px 72px;
  }

  .nv-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .nv-card--lead {
    display: flex;
    flex-direction: column;
    gap: 0;
  }

  .nv-card--lead .nv-card__body {
    padding-top: 16px;
  }

  .nv-ask__bubble {
    max-width: 88%;
  }

  .nv-prose {
    font-size: 16.5px;
    line-height: 1.9;
  }
}

@media (min-width: 901px) {
  .nv-close {
    display: none;
  }
}