/* ==========================================================================
   阅读器专用样式 · 主题变量化
   ========================================================================== */

.nv-reader {
    position: relative;
    margin: 0 auto;
    min-height: 100vh;
    background: var(--nv-bg, var(--mn-bg-card, #fff));
    color: var(--nv-fg, var(--mn-text, #333));
    transition: background-color .25s, color .25s;
}

/* 三套主题变量（作用在根节点，所有子元素继承） */
.nv-reader[data-nv-theme="day"] {
    --nv-bg: var(--mn-bg-card, #fff);
    --nv-fg: var(--mn-text, #333);
    --nv-bg-top: var(--mn-bg-card, #fff);
    --nv-bg-soft: var(--mn-bg-soft, #f8fafc);
}
.nv-reader[data-nv-theme="night"] {
    --nv-bg: #1a1a1a;
    --nv-fg: #c8c8c8;
    --nv-bg-top: #202020;
    --nv-bg-soft: #262626;
}
.nv-reader[data-nv-theme="sepia"] {
    --nv-bg: #f5ecd9;
    --nv-fg: #4b3a25;
    --nv-bg-top: #ede0c7;
    --nv-bg-soft: #eee1c7;
}

/* ---------- 顶部工具条 ---------- */
.nv-rd-topbar {
    position: sticky; top: 0; z-index: 30;
    display: flex; align-items: center; gap: 10px;
    padding: 10px 16px;
    background: var(--nv-bg-top, var(--mn-bg-card, #fff));
    border-bottom: 1px solid color-mix(in srgb, var(--nv-fg, #333) 12%, transparent);
    backdrop-filter: saturate(150%) blur(8px);
}
.nv-rd-title {
    flex: 1; font-size: 14px; font-weight: 500;
    color: var(--nv-fg, var(--mn-text, #333));
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.nv-rd-topright { display: flex; gap: 4px; }
.nv-rd-btn {
    background: transparent;
    border: 1px solid transparent;
    color: var(--nv-fg, var(--mn-text, #333));
    padding: 6px 10px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    line-height: 1;
    transition: background .15s, border-color .15s;
}
.nv-rd-btn:hover {
    background: color-mix(in srgb, var(--nv-fg, #333) 8%, transparent);
    border-color: color-mix(in srgb, var(--nv-fg, #333) 15%, transparent);
}
.nv-rd-primary {
    background: var(--mn-primary, #0066cc) !important;
    border-color: var(--mn-primary, #0066cc) !important;
    color: #fff !important;
}
.nv-rd-warn {
    background: #ef4444 !important;
    border-color: #ef4444 !important;
    color: #fff !important;
}

/* 顶部进度条 */
.nv-rd-progress {
    height: 3px;
    background: color-mix(in srgb, var(--nv-fg, #333) 10%, transparent);
    position: sticky; top: 53px; z-index: 29;
}
.nv-rd-progress-fill {
    height: 100%; width: 0;
    background: linear-gradient(90deg, var(--mn-primary, #0066cc), #9b7cff);
    transition: width .2s;
}

/* ---------- 正文 ---------- */
.nv-rd-content-wrap {
    max-width: 800px;
    margin: 0 auto;
    padding: 30px 24px 100px;
    box-sizing: border-box;
}
.nv-rd-chapter-title {
    font-size: 22px;
    font-weight: 700;
    margin: 10px 0 26px;
    color: var(--nv-fg, var(--mn-text, #333));
    line-height: 1.4;
}
.nv-rd-content {
    font-size: 18px;
    line-height: 1.9;
    color: var(--nv-fg, var(--mn-text, #333));
    word-break: break-word;
}
.nv-rd-content p {
    margin: 0 0 1em;
    text-indent: 0;
}
.nv-rd-content img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 1em auto;
    border-radius: 8px;
}
.nv-rd-wordcount {
    color: color-mix(in srgb, var(--nv-fg, #333) 55%, transparent);
    font-size: 13px;
    text-align: right;
    margin-top: 30px;
    padding-top: 14px;
    border-top: 1px dashed color-mix(in srgb, var(--nv-fg, #333) 15%, transparent);
}

/* ---------- 底部导航 ---------- */
.nv-rd-nav {
    position: fixed; left: 0; right: 0; bottom: 0;
    z-index: 25;
    display: flex; gap: 10px; justify-content: center;
    padding: 12px 16px;
    background: var(--nv-bg-top, var(--mn-bg-card, #fff));
    border-top: 1px solid color-mix(in srgb, var(--nv-fg, #333) 12%, transparent);
    backdrop-filter: saturate(150%) blur(8px);
}
.nv-rd-navbtn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 9px 22px;
    border-radius: 10px;
    border: 1px solid color-mix(in srgb, var(--nv-fg, #333) 20%, transparent);
    background: transparent;
    color: var(--nv-fg, var(--mn-text, #333));
    text-decoration: none;
    cursor: pointer;
    font-size: 14px;
    transition: all .15s;
}
.nv-rd-navbtn:hover {
    background: color-mix(in srgb, var(--nv-fg, #333) 8%, transparent);
    transform: translateY(-1px);
}
.nv-rd-navbtn.disabled { opacity: .4; pointer-events: none; }

/* ---------- 目录抽屉 & 设置面板 ---------- */
.nv-rd-drawer, .nv-rd-panel {
    position: fixed; top: 0; bottom: 0;
    width: 360px; max-width: 92vw;
    background: var(--nv-bg, var(--mn-bg-card, #fff));
    color: var(--nv-fg, var(--mn-text, #333));
    z-index: 60;
    box-shadow: 0 0 28px rgba(0, 0, 0, .18);
    overflow-y: auto;
    animation: nvSlideIn .2s ease-out;
}
@keyframes nvSlideIn {
    from { transform: translateX(var(--nv-slide, -100%)); opacity: 0; }
    to   { transform: translateX(0); opacity: 1; }
}
.nv-rd-drawer { left: 0; --nv-slide: -100%; }
.nv-rd-panel { right: 0; --nv-slide: 100%; }

.nv-rd-drawer header, .nv-rd-panel header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 14px 16px;
    border-bottom: 1px solid color-mix(in srgb, var(--nv-fg, #333) 12%, transparent);
    font-weight: 600;
    position: sticky; top: 0;
    background: var(--nv-bg, var(--mn-bg-card, #fff));
    z-index: 1;
}

.nv-rd-cat-search { padding: 10px 12px; }
.nv-rd-cat-search input {
    width: 100%; padding: 8px 12px;
    border: 1px solid color-mix(in srgb, var(--nv-fg, #333) 20%, transparent);
    border-radius: 8px;
    background: transparent;
    color: var(--nv-fg, var(--mn-text, #333));
    box-sizing: border-box;
    outline: none;
    font-size: 14px;
}
.nv-rd-cat-search input:focus { border-color: var(--mn-primary, #0066cc); }

.nv-rd-catlist { list-style: none; padding: 0; margin: 0; }
.nv-rd-catlist li a {
    display: block;
    padding: 10px 16px;
    color: var(--nv-fg, var(--mn-text, #333));
    text-decoration: none;
    border-bottom: 1px solid color-mix(in srgb, var(--nv-fg, #333) 8%, transparent);
    font-size: 14px;
    transition: background .12s;
}
.nv-rd-catlist li a:hover { background: color-mix(in srgb, var(--nv-fg, #333) 6%, transparent); }
.nv-rd-catlist li.active a {
    color: var(--mn-primary, #0066cc);
    background: color-mix(in srgb, var(--mn-primary, #0066cc) 12%, transparent);
    font-weight: 500;
}

/* 设置面板分组 */
.nv-rd-group {
    padding: 14px 16px;
    border-bottom: 1px solid color-mix(in srgb, var(--nv-fg, #333) 8%, transparent);
}
.nv-rd-group label {
    display: block; margin-bottom: 8px;
    color: var(--nv-fg, var(--mn-text, #333));
    font-size: 13px; font-weight: 500;
    opacity: .88;
}
.nv-rd-group input[type="range"] {
    width: 100%;
    accent-color: var(--mn-primary, #0066cc);
}
.nv-rd-group select,
.nv-rd-group textarea,
.nv-rd-group input[type="text"],
.nv-rd-group input[type="number"] {
    width: 100%; padding: 8px 10px;
    border: 1px solid color-mix(in srgb, var(--nv-fg, #333) 20%, transparent);
    border-radius: 8px;
    background: transparent;
    color: var(--nv-fg, var(--mn-text, #333));
    font-size: 14px;
    box-sizing: border-box;
    outline: none;
    font-family: inherit;
}
.nv-rd-group select:focus,
.nv-rd-group textarea:focus,
.nv-rd-group input:focus { border-color: var(--mn-primary, #0066cc); }
.nv-rd-group textarea { resize: vertical; }

.nv-rd-themes { display: flex; flex-wrap: wrap; gap: 6px; }
.nv-rd-th {
    padding: 6px 14px;
    border-radius: 999px;
    border: 1px solid color-mix(in srgb, var(--nv-fg, #333) 20%, transparent);
    cursor: pointer;
    background: transparent;
    color: var(--nv-fg, var(--mn-text, #333));
    font-size: 13px;
    transition: all .15s;
}
.nv-rd-th:hover { border-color: var(--mn-primary, #0066cc); }
.nv-rd-th.active {
    background: var(--mn-primary, #0066cc);
    color: #fff;
    border-color: var(--mn-primary, #0066cc);
}
.nv-th-day   { background: linear-gradient(135deg, #fff 50%, #f5f5f5 50%); color: #333; }
.nv-th-night { background: linear-gradient(135deg, #2a2a2a 50%, #1a1a1a 50%); color: #fff; }
.nv-th-sepia { background: #f5ecd9; color: #4b3a25; }
.nv-th-auto  { background: linear-gradient(135deg, #fff 50%, #1a1a1a 50%); color: #fff; }
.nv-rd-th.active { box-shadow: 0 0 0 3px color-mix(in srgb, var(--mn-primary, #0066cc) 30%, transparent); }

.nv-rd-row { display: flex; gap: 10px; align-items: center; }
.nv-rd-row > * { flex: 0 0 auto; }
.nv-rd-row input[type="range"] { flex: 1 1 auto; }

.nv-rd-list { list-style: none; padding: 0; margin: 0; }
.nv-rd-list li {
    padding: 10px 0;
    border-bottom: 1px dashed color-mix(in srgb, var(--nv-fg, #333) 12%, transparent);
    font-size: 13px;
}
.nv-rd-list li a { color: var(--mn-primary, #0066cc); text-decoration: none; }
.nv-rd-list li a:hover { text-decoration: underline; }
.nv-rd-list em {
    display: block;
    color: color-mix(in srgb, var(--nv-fg, #333) 65%, transparent);
    font-style: normal; font-size: 12px;
    margin-bottom: 4px;
}
.nv-rd-list p { margin: 4px 0; color: var(--nv-fg, var(--mn-text, #333)); }

.nv-rd-hint {
    color: color-mix(in srgb, var(--nv-fg, #333) 55%, transparent);
    font-size: 12px; line-height: 1.7;
    margin: 0;
}

/* ---------- 快速跳转 ---------- */
.nv-rd-jump {
    position: fixed;
    left: 50%; bottom: 80px;
    transform: translateX(-50%);
    z-index: 40;
    background: var(--nv-bg, var(--mn-bg-card, #fff));
    border: 1px solid color-mix(in srgb, var(--nv-fg, #333) 15%, transparent);
    border-radius: 12px;
    padding: 10px;
    display: flex; gap: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, .18);
}
.nv-rd-jump input {
    width: 100px;
    padding: 6px 10px;
    border: 1px solid color-mix(in srgb, var(--nv-fg, #333) 20%, transparent);
    border-radius: 8px;
    background: transparent;
    color: var(--nv-fg, var(--mn-text, #333));
    font-size: 14px;
    outline: none;
}

/* ---------- 摸鱼模式 ---------- */
.nv-rd-moyu { background: #fff !important; color: #333 !important; }
.nv-rd-moyu .nv-rd-topbar,
.nv-rd-moyu .nv-rd-nav { display: none; }
.nv-rd-moyu .nv-rd-content-wrap { padding-top: 20px; }
.nv-rd-moyu .nv-rd-content { color: #333 !important; }

/* ---------- 图片隐藏（选项控制） ---------- */
.nv-reader[data-hide-images="1"] .nv-rd-content img { display: none; }

/* ---------- 全屏 ---------- */
.nv-rd-fullscreen { position: fixed; inset: 0; z-index: 100; }

/* ---------- 分页模式 & 动画 ---------- */
.nv-reader[data-page-mode="page"] .nv-rd-content-wrap {
    max-width: var(--nv-maxw, 800px);
}
.nv-reader[data-animation="0"] .nv-rd-content * { transition: none !important; }

/* 选中文字快捷笔记气泡 */
.nv-rd-note-bubble {
    position: absolute;
    z-index: 100;
    padding: 4px;
    background: var(--nv-bg, var(--mn-bg-card, #fff));
    border: 1px solid color-mix(in srgb, var(--nv-fg, #333) 15%, transparent);
    border-radius: 10px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, .15);
    display: none;
}
.nv-rd-note-bubble .nv-rd-btn { padding: 6px 12px; font-size: 13px; }

/* ---------- 响应式 ---------- */
@media (max-width: 640px) {
    .nv-rd-content-wrap { padding: 20px 16px 90px; }
    .nv-rd-chapter-title { font-size: 18px; margin-bottom: 18px; }
    .nv-rd-content { font-size: 17px; }
    .nv-rd-drawer, .nv-rd-panel { width: 100%; }
    .nv-rd-navbtn { padding: 8px 16px; font-size: 13px; }
}