/* LRPR · 戀愛實價登錄 · 閱讀器樣式 */

:root {
  color-scheme: light;

  --bg:           #e8e2d8;
  --paper:        #fefcf5;
  --paper-soft:   #f2ece0;
  --chrome:       #252018;
  --chrome-mid:   #312b21;
  --chrome-text:  #ccc3b6;
  --chrome-muted: #6e6558;
  --grid:         rgba(148, 132, 110, .16);

  --ink:    #1c1810;
  --muted:  #675849;
  --muted-2:#9a8c7e;

  --line:       #ccc4b0;
  --line-light: #ddd7c8;

  --accent:        #a02c1c;
  --accent-soft:   rgba(160, 44, 28, .09);
  --accent-2:      #1a5e6e;
  --accent-2-soft: rgba(26, 94, 110, .09);

  --down: #c44030;
  --up:   #2a9e58;

  --shadow:    0 14px 56px rgba(18, 12, 6, .14);
  --shadow-sm: 0 3px 12px rgba(18, 12, 6, .09);

  --reader-size:  19px;
  --reader-width: 720px;
  --sidebar-w:    296px;
}

[data-theme="night"] {
  color-scheme: dark;

  --bg:           #0b0e10;
  --paper:        #161a1d;
  --paper-soft:   #1e2428;
  --chrome:       #07090b;
  --chrome-mid:   #0f1316;
  --chrome-text:  #bdb5ac;
  --chrome-muted: #565050;
  --grid:         rgba(255, 255, 255, .025);

  --ink:    #e2dbd2;
  --muted:  #9e9488;
  --muted-2:#6c6560;

  --line:       #292e32;
  --line-light: #212629;

  --accent:        #d06255;
  --accent-soft:   rgba(208, 98, 85, .12);
  --accent-2:      #55b0c0;
  --accent-2-soft: rgba(85, 176, 192, .1);

  --down: #d05545;
  --up:   #3aaa62;

  --shadow:    0 14px 56px rgba(0, 0, 0, .4);
  --shadow-sm: 0 3px 12px rgba(0, 0, 0, .24);
}

/* ── Reset & Base ─────────────────────────────── */

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background-color: var(--bg);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 40px 40px;
  color: var(--ink);
  font-family: "Noto Serif TC", "Songti TC", "PMingLiU", Georgia, serif;
  line-height: 1.85;
}

button, input { font: inherit; }

/* ── App Layout ───────────────────────────────── */

.app {
  min-height: 100vh;
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
}

/* ── Sidebar ──────────────────────────────────── */

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--line);
  background: color-mix(in srgb, var(--paper) 90%, transparent);
  backdrop-filter: blur(18px);
  overflow: hidden;
}

/* Brand header — dark chrome */
.brand {
  flex: 0 0 auto;
  padding: 16px 16px 14px;
  background: var(--chrome);
  border-bottom: 1px solid rgba(255, 255, 255, .05);
}

.brand-sys {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 11px;
  color: var(--chrome-muted);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 10px;
  letter-spacing: .14em;
}

.brand-id {
  color: var(--accent);
  font-weight: 700;
}

.brand-ver { margin-left: auto; opacity: .65; }

.brand h1 {
  margin: 0 0 4px;
  color: var(--chrome-text);
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: -.01em;
}

.brand-sub {
  margin: 0 0 12px;
  color: var(--chrome-muted);
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-size: 11.5px;
  letter-spacing: .02em;
}

.market-status {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 9px;
  border: 1px solid rgba(255, 255, 255, .07);
  border-radius: 5px;
  background: rgba(255, 255, 255, .04);
  color: var(--chrome-muted);
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-size: 11px;
  letter-spacing: .02em;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--up);
  flex-shrink: 0;
  box-shadow: 0 0 5px var(--up);
}

.market-index {
  margin-left: auto;
  color: var(--down);
  font-weight: 700;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 10.5px;
}

/* Scrollable sidebar body */
.sidebar-body {
  flex: 1 1 0;
  padding: 14px 12px 24px;
  overflow-y: auto;
  scrollbar-width: thin;
}

/* Toolbar */
.toolbar {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 7px;
  margin-bottom: 12px;
}

.tool-button,
.nav-button,
.menu-button {
  min-height: 36px;
  padding: 0 8px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--paper-soft);
  color: var(--muted);
  cursor: pointer;
  font-size: 13px;
  transition: transform .14s, border-color .14s, color .14s;
}

.tool-button:hover,
.nav-button:hover,
.menu-button:hover {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--accent) 50%, var(--line));
  color: var(--accent);
}

/* Search */
.search {
  display: block;
  width: 100%;
  height: 36px;
  margin-bottom: 12px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--paper);
  color: var(--ink);
  font-size: 13px;
  outline: none;
  transition: border-color .14s;
}

.search:focus { border-color: var(--accent-2); }

/* TOC label */
.toc-label {
  margin: 0 0 8px 2px;
  color: var(--muted-2);
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-size: 10.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
}

/* TOC list */
.toc {
  display: grid;
  gap: 3px;
  margin: 0;
  padding: 0;
  list-style: none;
}

/* Chapter link */
.chapter-link {
  width: 100%;
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 8px;
  align-items: center;
  padding: 8px 7px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: transparent;
  text-align: left;
  cursor: pointer;
  transition: background .14s, border-color .14s;
}

.chapter-link:hover {
  background: var(--accent-soft);
  border-color: color-mix(in srgb, var(--accent) 20%, transparent);
}

.chapter-link.active {
  background: var(--accent-soft);
  border-color: color-mix(in srgb, var(--accent) 30%, transparent);
}

/* keyword badge (left column) */
.chapter-kw {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  border-radius: 5px;
  border: 1px solid var(--line);
  background: var(--paper-soft);
  color: var(--muted);
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: .02em;
  text-align: center;
  transition: background .14s, border-color .14s, color .14s;
}

.chapter-link:hover .chapter-kw {
  border-color: color-mix(in srgb, var(--accent) 35%, transparent);
  background: var(--accent-soft);
  color: var(--accent);
}

.chapter-link.active .chapter-kw {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* info (right column) */
.chapter-info { min-width: 0; }

.chapter-case {
  display: block;
  margin-bottom: 1px;
  color: var(--muted-2);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 10px;
  letter-spacing: .08em;
}

.chapter-title {
  display: block;
  color: var(--ink);
  font-size: 13px;
  line-height: 1.4;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: color .14s;
}

.chapter-link.active .chapter-title {
  color: var(--accent);
  font-weight: 600;
}

/* ── Mobile Topbar ────────────────────────────── */

.mobile-topbar { display: none; }

/* ── Main ─────────────────────────────────────── */

.main {
  min-width: 0;
  padding: 40px 28px 80px;
}

.reader-shell {
  width: min(100%, var(--reader-width));
  margin: 0 auto;
}

.reader-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  padding: 0 3px;
  color: var(--muted-2);
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-size: 12px;
  letter-spacing: .03em;
}

.reader-meta-id {
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 11px;
  color: var(--accent-2);
  letter-spacing: .08em;
}

.reader-meta-words { margin-left: auto; }

/* Reader card */
.reader {
  min-height: 70vh;
  padding: clamp(26px, 5.5vw, 60px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  box-shadow: var(--shadow);
  font-size: var(--reader-size);
}

/* Chapter title */
.reader h1 {
  display: flex;
  align-items: baseline;
  gap: .35em;
  margin: 0 0 34px;
  color: var(--accent);
  font-size: clamp(26px, 4.5vw, 38px);
  line-height: 1.4;
  letter-spacing: -.01em;
  white-space: nowrap;
}

.reader h1 .chapter-mark {
  flex: 0 0 auto;
  font-size: .62em;
  color: var(--accent-2);
  font-weight: 700;
}

.reader h1 .chapter-name { min-width: 0; }

.reader h2 {
  margin: 40px 0 14px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  color: var(--ink);
  font-size: 24px;
  line-height: 1.45;
  letter-spacing: -.01em;
}

.reader h3 {
  margin: 28px 0 10px;
  color: var(--accent-2);
  font-size: 20px;
  line-height: 1.45;
}

.reader p {
  margin: 0 0 1.1em;
  text-align: justify;
}

.reader-image {
  margin: 0 0 24px;
}

.reader-image img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper-soft);
  box-shadow: var(--shadow-sm);
}

.reader blockquote {
  margin: 24px 0;
  padding: 10px 18px 10px 16px;
  border-left: 3px solid var(--accent);
  border-radius: 0 5px 5px 0;
  background: var(--paper-soft);
  color: var(--muted);
}

.reader hr {
  margin: 36px auto;
  width: 40%;
  border: 0;
  border-top: 1px solid var(--line);
}

.reader table {
  width: 100%;
  margin: 22px 0;
  border-collapse: collapse;
  font-size: .87em;
  line-height: 1.6;
}

.reader th,
.reader td {
  padding: 8px 10px;
  border: 1px solid var(--line);
  vertical-align: top;
}

.reader th {
  background: var(--paper-soft);
  color: var(--accent-2);
  font-weight: 600;
}

.reader strong {
  color: var(--accent);
  font-weight: 700;
}

.reader code {
  padding: .1em .32em;
  border-radius: 4px;
  background: var(--paper-soft);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: .88em;
}

.reader ul,
.reader ol {
  margin: 0 0 1.1em;
  padding-left: 1.6em;
}

.reader li { margin-bottom: .3em; }

/* ── Bottom Nav ───────────────────────────────── */

.bottom-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 20px;
}

.nav-button {
  padding: 10px 14px;
  font-size: 13.5px;
  text-align: center;
}

/* ── Progress Bar ─────────────────────────────── */

.progress {
  position: fixed;
  inset: 0 0 auto;
  z-index: 10;
  height: 3px;
  background: transparent;
}

.progress span {
  display: block;
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width .1s linear;
}

/* ── Empty State ──────────────────────────────── */

.empty {
  color: var(--muted);
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-size: .9em;
  text-align: center;
}

/* ── Responsive ───────────────────────────────── */

@media (max-width: 860px) {
  .app { display: block; }

  .mobile-topbar {
    position: sticky;
    top: 0;
    z-index: 8;
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 52px;
    padding: 8px 12px;
    border-bottom: 1px solid rgba(255, 255, 255, .06);
    background: color-mix(in srgb, var(--chrome) 96%, transparent);
    backdrop-filter: blur(16px);
  }

  .mobile-title {
    overflow: hidden;
    color: var(--chrome-text);
    font-family: ui-sans-serif, system-ui, sans-serif;
    font-size: 14px;
    font-weight: 600;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .menu-button {
    width: 40px;
    height: 36px;
    flex: 0 0 auto;
    background: rgba(255, 255, 255, .07);
    border-color: rgba(255, 255, 255, .12);
    color: var(--chrome-text);
  }

  .menu-button:hover {
    border-color: rgba(255, 255, 255, .22);
    color: var(--chrome-text);
    transform: none;
  }

  .sidebar {
    position: fixed;
    inset: 52px 0 0;
    z-index: 9;
    width: min(88vw, 320px);
    height: auto;
    transform: translateX(-110%);
    transition: transform .22s ease;
    box-shadow: var(--shadow);
  }

  .sidebar.open { transform: translateX(0); }

  .main { padding: 22px 12px 56px; }

  .reader { padding: 22px 16px; }

  .reader h1 { font-size: clamp(20px, 7vw, 28px); }

  .reader-meta { padding: 0 2px; }
}