/*
Theme Name: LBNotes - 實用筆記
Theme URI: https://lbnotes.com
Author: LBNotes Studio
Author URI: https://lbnotes.com
Description: 專注於 Notion、個人生產力、知識管理、實用工具與實測筆記的數位手帳主題。採用溫潤奶油色、大器留白與典雅 Editorial / Notes 視覺風格。完全相容主流 SEO 外掛（Yoast / Rank Math），支援原生 Custom Post Types（Tools、Templates、Experiments）、動態首頁配置、動態作者與更新時間、實用速覽（Quick Answer）、互動清單、純前端工具安全處理與全站無障礙設計。
Version: 2.0.0
Tested up to: 6.7
Requires at least: 5.9
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: lbnotes
Tags: notes, notion, productivity, knowledge-management, tools, templates, experiments, warm-cream, editorial, clean, responsive, accessibility, seo-friendly
*/

/* ==========================================================================
   Design Tokens: Warm Cream & Editorial Notes Palette
   ========================================================================== */
:root {
  /* Warm Cream & Paper Canvas */
  --lb-bg-base: #FAF8F5;          /* Soft Milk Foam Cream */
  --lb-bg-surface: #FFFFFF;       /* Pure Ivory White Card */
  --lb-bg-soft: #F4EFE6;          /* Warm Biscuit / Oatmeal */
  --lb-bg-tint: #EFE8DC;          /* Subtle Sand Tone */
  --lb-bg-code: #F2ECE1;          /* Warm Code & Pill Canvas */

  /* Text & Inks */
  --lb-ink-main: #2D2723;         /* Roasted Charcoal (Primary Heading) */
  --lb-ink-body: #4C433C;         /* Warm Cocoa (Body Reading) */
  --lb-ink-muted: #7A6F65;        /* Muted Taupe (Subtitles & Meta) */
  --lb-ink-light: #A5998E;        /* Soft Sand Stone (Placeholders) */

  /* Editorial Accents */
  --lb-accent-peach: #D9825B;     /* Warm Terracotta / Peach */
  --lb-accent-hover: #BF6943;     /* Deep Terracotta */
  --lb-accent-soft: #F7EAE3;      /* Soft Terracotta Tint */
  --lb-accent-sage: #5E7D68;      /* Calming Eucalyptus Sage */
  --lb-sage-soft: #E9F1EC;        /* Soft Sage Tint */
  --lb-accent-blue: #587A8F;      /* Slate Cloud Blue */
  --lb-blue-soft: #EBF2F6;        /* Soft Slate Tint */
  --lb-accent-amber: #C98A2C;     /* Focus Amber */
  --lb-amber-soft: #FBF4E8;

  /* Borders & Shadows */
  --lb-border: #EAE3D6;           /* Subtle Warm Border */
  --lb-border-light: #F3ECE1;     /* Hairline Divider */
  --lb-shadow-soft: 0 2px 12px rgba(60, 45, 35, 0.04);
  --lb-shadow-hover: 0 8px 24px rgba(60, 45, 35, 0.08);

  /* Border Radii */
  --lb-radius-sm: 8px;
  --lb-radius-md: 14px;
  --lb-radius-lg: 22px;
  --lb-radius-pill: 9999px;

  /* Typography */
  --lb-font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC", "Noto Sans TC", Roboto, Helvetica, Arial, sans-serif;
  --lb-font-serif: "Noto Serif TC", "Songti TC", Georgia, Cambria, serif;
  --lb-font-mono: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace;

  /* Dimensions */
  --lb-max-width: 1160px;
  --lb-read-width: 780px;
}

/* ==========================================================================
   Base & Reset
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--lb-font-sans);
  background-color: var(--lb-bg-base);
  color: var(--lb-ink-body);
  line-height: 1.85;
  font-weight: 400;
  letter-spacing: 0.012em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Accessibility: Focus and Screen Reader */
:focus-visible {
  outline: 2px solid var(--lb-accent-peach);
  outline-offset: 3px;
}

.screen-reader-text {
  border: 0;
  clip: rect(1px, 1px, 1px, 1px);
  clip-path: inset(50%);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute !important;
  width: 1px;
  word-wrap: normal !important;
}

.screen-reader-text:focus {
  background-color: var(--lb-bg-surface);
  border-radius: var(--lb-radius-sm);
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.15);
  clip: auto !important;
  clip-path: none;
  color: var(--lb-ink-main);
  display: block;
  font-size: 0.95rem;
  font-weight: 700;
  height: auto;
  left: 16px;
  line-height: normal;
  padding: 12px 20px;
  text-decoration: none;
  top: 16px;
  width: auto;
  z-index: 100000;
}

/* Typography Scale */
h1, h2, h3, h4, h5, h6 {
  color: var(--lb-ink-main);
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 0.8rem;
  letter-spacing: -0.015em;
}

h1 { font-size: clamp(1.85rem, 3.2vw, 2.45rem); }
h2 { font-size: clamp(1.4rem, 2.2vw, 1.85rem); }
h3 { font-size: clamp(1.18rem, 1.7vw, 1.42rem); }
h4 { font-size: 1.12rem; }

p {
  margin-bottom: 1.45rem;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, opacity 0.2s ease;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Containers */
.lb-container {
  width: 100%;
  max-width: var(--lb-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.lb-container-read {
  width: 100%;
  max-width: var(--lb-read-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.lb-site-header {
  position: sticky;
  top: 0;
  z-index: 99;
  background-color: rgba(250, 248, 245, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--lb-border);
  transition: all 0.25s ease;
}

.lb-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 20px;
}

.lb-brand-wrap {
  display: flex;
  align-items: baseline;
  gap: 12px;
  text-decoration: none;
}

.lb-brand-text-link {
  display: inline-flex;
  align-items: baseline;
  text-decoration: none;
}

.lb-brand-name {
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--lb-ink-main);
}

.lb-brand-dot {
  color: var(--lb-accent-peach);
}

.lb-brand-desc {
  font-size: 0.85rem;
  color: var(--lb-ink-muted);
  font-weight: 500;
  border-left: 1px solid var(--lb-border);
  padding-left: 12px;
  line-height: 1.2;
}

@media (max-width: 768px) {
  .lb-brand-desc {
    display: none;
  }
}

/* Nav Menu */
.lb-nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 8px;
  margin: 0;
  padding: 0;
}

.lb-nav-menu li a {
  display: inline-block;
  padding: 7px 14px;
  font-size: 0.93rem;
  font-weight: 500;
  color: var(--lb-ink-muted);
  border-radius: var(--lb-radius-pill);
  transition: all 0.2s ease;
}

.lb-nav-menu li a:hover,
.lb-nav-menu li.current-menu-item > a,
.lb-nav-menu li.current_page_item > a {
  color: var(--lb-ink-main);
  background-color: var(--lb-bg-soft);
}

.lb-header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.lb-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--lb-border);
  background: var(--lb-bg-surface);
  color: var(--lb-ink-muted);
  cursor: pointer;
  transition: all 0.2s ease;
}

.lb-icon-btn:hover {
  color: var(--lb-ink-main);
  border-color: var(--lb-ink-light);
  transform: translateY(-1px);
}

.lb-mobile-nav-btn {
  display: none;
}

@media (max-width: 860px) {
  .lb-mobile-nav-btn {
    display: inline-flex;
  }
  .lb-nav-menu {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background-color: var(--lb-bg-base);
    border-bottom: 1px solid var(--lb-border);
    flex-direction: column;
    padding: 16px 24px 24px;
    gap: 10px;
    box-shadow: var(--lb-shadow-soft);
  }
  .lb-nav-menu.is-open {
    display: flex;
  }
  .lb-nav-menu li {
    width: 100%;
  }
  .lb-nav-menu li a {
    display: block;
    padding: 10px 16px;
    font-size: 1rem;
    border-radius: var(--lb-radius-sm);
  }
}

/* Search Dropdown Panel */
.lb-search-panel {
  display: none;
  background-color: var(--lb-bg-surface);
  border-bottom: 1px solid var(--lb-border);
  padding: 18px 0;
  box-shadow: var(--lb-shadow-soft);
}

.lb-search-panel.is-open {
  display: block;
  animation: lbFadeSlide 0.2s ease forwards;
}

@keyframes lbFadeSlide {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

.lb-search-inner {
  display: flex;
  gap: 10px;
  max-width: 680px;
  margin: 0 auto;
}

.lb-search-box {
  flex: 1;
  padding: 12px 18px;
  font-size: 0.98rem;
  font-family: inherit;
  border: 1px solid var(--lb-border);
  border-radius: var(--lb-radius-pill);
  background-color: var(--lb-bg-base);
  color: var(--lb-ink-main);
  outline: none;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.lb-search-box:focus {
  border-color: var(--lb-accent-peach);
  background-color: var(--lb-bg-surface);
}

.lb-search-btn {
  padding: 12px 24px;
  border: none;
  border-radius: var(--lb-radius-pill);
  background-color: var(--lb-ink-main);
  color: #FFFFFF;
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.lb-search-btn:hover {
  background-color: var(--lb-accent-peach);
}

/* Reading Progress Bar */
.lb-reading-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--lb-accent-peach), var(--lb-accent-sage));
  width: 0%;
  z-index: 999;
  transition: width 0.1s ease-out;
}

/* ==========================================================================
   Buttons & UI Badges
   ========================================================================== */
.lb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--lb-radius-pill);
  font-size: 0.92rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid transparent;
  line-height: 1.2;
}

.lb-btn-primary {
  background-color: var(--lb-ink-main);
  color: #FFFFFF;
}

.lb-btn-primary:hover {
  background-color: var(--lb-accent-peach);
  color: #FFFFFF;
  transform: translateY(-1px);
}

.lb-btn-outline {
  background-color: transparent;
  border-color: var(--lb-border);
  color: var(--lb-ink-main);
}

.lb-btn-outline:hover {
  border-color: var(--lb-ink-main);
  background-color: var(--lb-bg-surface);
  transform: translateY(-1px);
}

.lb-btn-soft {
  background-color: var(--lb-bg-soft);
  color: var(--lb-ink-main);
}

.lb-btn-soft:hover {
  background-color: var(--lb-bg-tint);
}

.lb-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  font-size: 0.76rem;
  font-weight: 600;
  border-radius: var(--lb-radius-pill);
  line-height: 1.3;
  letter-spacing: 0.02em;
}

.lb-badge-peach { background-color: var(--lb-accent-soft); color: var(--lb-accent-hover); }
.lb-badge-sage  { background-color: var(--lb-sage-soft); color: var(--lb-accent-sage); }
.lb-badge-blue  { background-color: var(--lb-blue-soft); color: var(--lb-accent-blue); }
.lb-badge-amber { background-color: var(--lb-amber-soft); color: var(--lb-accent-amber); }
.lb-badge-gray  { background-color: var(--lb-bg-soft); color: var(--lb-ink-muted); }

/* ==========================================================================
   Hero Section (Editorial Welcome)
   ========================================================================== */
.lb-hero-section {
  padding: 64px 0 42px;
}

.lb-hero-card {
  background-color: var(--lb-bg-surface);
  border: 1px solid var(--lb-border);
  border-radius: var(--lb-radius-lg);
  padding: 56px 48px;
  box-shadow: var(--lb-shadow-soft);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.lb-hero-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--lb-accent-peach), var(--lb-accent-sage));
}

.lb-hero-subtitle {
  display: inline-block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--lb-accent-peach);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.lb-hero-title {
  font-size: clamp(2rem, 3.8vw, 2.75rem);
  font-weight: 800;
  color: var(--lb-ink-main);
  max-width: 820px;
  margin: 0 auto 18px;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

.lb-hero-desc {
  font-size: 1.06rem;
  color: var(--lb-ink-muted);
  max-width: 660px;
  margin: 0 auto 30px;
  line-height: 1.8;
}

.lb-hero-search {
  max-width: 580px;
  margin: 0 auto 32px;
}

.lb-hero-search form {
  display: flex;
  gap: 8px;
  background: var(--lb-bg-base);
  padding: 6px;
  border-radius: var(--lb-radius-pill);
  border: 1px solid var(--lb-border);
}

.lb-hero-search input {
  flex: 1;
  border: none;
  background: transparent;
  padding: 10px 18px;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--lb-ink-main);
  outline: none;
}

.lb-hero-quick-pills {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 10px;
}

.lb-quick-pill {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--lb-ink-muted);
  background-color: var(--lb-bg-base);
  border: 1px solid var(--lb-border);
  border-radius: var(--lb-radius-pill);
  transition: all 0.2s ease;
}

.lb-quick-pill:hover,
.lb-quick-pill.is-active {
  color: var(--lb-ink-main);
  background-color: var(--lb-bg-soft);
  border-color: var(--lb-border);
  transform: translateY(-1px);
}

@media (max-width: 768px) {
  .lb-hero-card {
    padding: 36px 20px;
  }
}

/* ==========================================================================
   Section Header Bar
   ========================================================================== */
.lb-section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 28px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--lb-border);
  gap: 16px;
}

.lb-section-title-wrap h2 {
  font-size: 1.55rem;
  font-weight: 800;
  margin-bottom: 4px;
  letter-spacing: -0.02em;
}

.lb-section-subtitle {
  font-size: 0.9rem;
  color: var(--lb-ink-muted);
}

.lb-section-more-link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--lb-accent-peach);
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.lb-section-more-link:hover {
  color: var(--lb-accent-hover);
  text-decoration: underline;
}

/* Section Wrapper Spacing */
.lb-section-block {
  padding: 38px 0;
}

/* ==========================================================================
   Cards: Notes (Articles)
   ========================================================================== */
.lb-grid-layout {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 26px;
}

.lb-note-card,
.lb-baby-card {
  background-color: var(--lb-bg-surface);
  border: 1px solid var(--lb-border);
  border-radius: var(--lb-radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--lb-shadow-soft);
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.lb-note-card:hover,
.lb-baby-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--lb-shadow-hover);
  border-color: var(--lb-ink-light);
}

.lb-card-media {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background-color: var(--lb-bg-soft);
  overflow: hidden;
}

.lb-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.lb-note-card:hover .lb-card-img,
.lb-baby-card:hover .lb-card-img {
  transform: scale(1.03);
}

.lb-card-badge-pill,
.lb-card-stage-pill {
  position: absolute;
  top: 14px;
  left: 14px;
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(6px);
  color: var(--lb-ink-main);
  padding: 4px 10px;
  font-size: 0.76rem;
  font-weight: 700;
  border-radius: var(--lb-radius-pill);
  border: 1px solid var(--lb-border);
  z-index: 2;
}

.lb-card-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.lb-card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--lb-ink-muted);
  margin-bottom: 10px;
}

.lb-card-title {
  font-size: 1.18rem;
  font-weight: 700;
  line-height: 1.42;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.lb-card-title a {
  color: var(--lb-ink-main);
}

.lb-card-title a:hover {
  color: var(--lb-accent-peach);
}

.lb-card-excerpt {
  font-size: 0.91rem;
  color: var(--lb-ink-body);
  line-height: 1.68;
  margin-bottom: 18px;
  flex: 1;
}

.lb-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--lb-border-light);
  padding-top: 14px;
  font-size: 0.84rem;
  color: var(--lb-ink-muted);
}

.lb-card-readmore {
  color: var(--lb-accent-peach);
  font-weight: 600;
}

/* Featured Note Prominent Card */
.lb-featured-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 26px;
}

.lb-featured-card {
  background-color: var(--lb-bg-surface);
  border: 1px solid var(--lb-border);
  border-radius: var(--lb-radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--lb-shadow-soft);
  position: relative;
  transition: transform 0.22s ease, box-shadow 0.22s ease;
}

.lb-featured-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--lb-shadow-hover);
}

.lb-featured-flag {
  position: absolute;
  top: 14px;
  right: 14px;
  background-color: var(--lb-ink-main);
  color: #FFFFFF;
  padding: 4px 10px;
  font-size: 0.74rem;
  font-weight: 700;
  border-radius: var(--lb-radius-pill);
  z-index: 2;
  letter-spacing: 0.04em;
}

/* ==========================================================================
   Categories & Topic Pills
   ========================================================================== */
.lb-cat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

.lb-cat-card {
  background-color: var(--lb-bg-surface);
  border: 1px solid var(--lb-border);
  border-radius: var(--lb-radius-md);
  padding: 18px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all 0.2s ease;
}

.lb-cat-card:hover {
  background-color: var(--lb-bg-soft);
  border-color: var(--lb-ink-light);
  transform: translateY(-2px);
}

.lb-cat-card-title {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--lb-ink-main);
}

.lb-cat-card-count {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--lb-ink-muted);
  background: var(--lb-bg-base);
  padding: 3px 8px;
  border-radius: var(--lb-radius-pill);
}

/* ==========================================================================
   Cards: Tools (Client-Side & Privacy Focus)
   ========================================================================== */
.lb-tool-card {
  background-color: var(--lb-bg-surface);
  border: 1px solid var(--lb-border);
  border-radius: var(--lb-radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--lb-shadow-soft);
  transition: all 0.22s ease;
}

.lb-tool-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--lb-shadow-hover);
  border-color: var(--lb-accent-sage);
}

.lb-tool-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  gap: 8px;
}

.lb-tool-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--lb-ink-main);
}

.lb-tool-card-desc {
  font-size: 0.9rem;
  color: var(--lb-ink-body);
  line-height: 1.65;
  margin-bottom: 18px;
  flex: 1;
}

.lb-privacy-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--lb-accent-sage);
  background-color: var(--lb-sage-soft);
  padding: 3px 8px;
  border-radius: var(--lb-radius-pill);
}

/* ==========================================================================
   Cards: Templates (Notion / Workflows)
   ========================================================================== */
.lb-template-card {
  background-color: var(--lb-bg-surface);
  border: 1px solid var(--lb-border);
  border-radius: var(--lb-radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--lb-shadow-soft);
  transition: all 0.22s ease;
}

.lb-template-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--lb-shadow-hover);
  border-color: var(--lb-accent-peach);
}

.lb-template-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.lb-template-platform {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--lb-accent-peach);
  background-color: var(--lb-accent-soft);
  padding: 3px 10px;
  border-radius: var(--lb-radius-pill);
}

/* ==========================================================================
   Cards: Experiments (Labs & Benchmarks)
   ========================================================================== */
.lb-experiment-card {
  background-color: var(--lb-bg-surface);
  border: 1px solid var(--lb-border);
  border-radius: var(--lb-radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--lb-shadow-soft);
  transition: all 0.22s ease;
}

.lb-experiment-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--lb-shadow-hover);
  border-color: var(--lb-accent-blue);
}

.lb-experiment-status {
  font-size: 0.76rem;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: var(--lb-radius-pill);
}

.lb-experiment-metric-box {
  background-color: var(--lb-bg-soft);
  border-left: 3px solid var(--lb-accent-blue);
  padding: 8px 12px;
  font-size: 0.84rem;
  color: var(--lb-ink-main);
  border-radius: 0 var(--lb-radius-sm) var(--lb-radius-sm) 0;
  margin-bottom: 16px;
}

/* ==========================================================================
   Single Post & Editorial Layout
   ========================================================================== */
.lb-article-wrap {
  padding: 38px 0 72px;
}

/* Breadcrumb Navigation */
.lb-breadcrumb-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--lb-ink-muted);
  margin-bottom: 24px;
}

.lb-breadcrumb-nav a:hover {
  color: var(--lb-accent-peach);
  text-decoration: underline;
}

.lb-breadcrumb-sep {
  color: var(--lb-ink-light);
  user-select: none;
}

.lb-post-title {
  font-size: clamp(2rem, 3.6vw, 2.65rem);
  font-weight: 800;
  color: var(--lb-ink-main);
  line-height: 1.32;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.lb-author-strip {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--lb-border);
  margin-bottom: 28px;
  font-size: 0.88rem;
  color: var(--lb-ink-muted);
}

.lb-author-avatar {
  border-radius: 50%;
  border: 1px solid var(--lb-border);
}

.lb-author-strip a {
  font-weight: 600;
  color: var(--lb-ink-main);
}

.lb-author-strip a:hover {
  color: var(--lb-accent-peach);
}

.lb-author-dot {
  margin: 0 4px;
  color: var(--lb-ink-light);
}

.lb-article-hero {
  margin: 28px 0 36px;
  border-radius: var(--lb-radius-md);
  overflow: hidden;
  border: 1px solid var(--lb-border);
}

/* Quick Answer / TL;DR Box */
.lb-quick-answer-card,
.lb-baby-guide-box {
  background-color: var(--lb-bg-surface);
  border: 1px solid var(--lb-border);
  border-radius: var(--lb-radius-md);
  padding: 26px 28px;
  margin-bottom: 36px;
  box-shadow: var(--lb-shadow-soft);
  position: relative;
}

.lb-quick-answer-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 4px;
  background-color: var(--lb-accent-peach);
  border-radius: var(--lb-radius-sm) 0 0 var(--lb-radius-sm);
}

.lb-quick-answer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.lb-quick-answer-label {
  font-size: 0.84rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--lb-accent-peach);
}

.lb-quick-answer-body {
  font-size: 1.02rem;
  line-height: 1.75;
  color: var(--lb-ink-main);
  font-weight: 500;
}

/* Table of Contents */
.lb-toc-wrapper {
  background-color: var(--lb-bg-soft);
  border: 1px solid var(--lb-border);
  border-radius: var(--lb-radius-md);
  padding: 20px 24px;
  margin: 32px 0;
}

.lb-toc-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.lb-toc-title {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--lb-ink-main);
  margin: 0;
}

.lb-toc-toggle {
  background: none;
  border: none;
  font-size: 0.84rem;
  color: var(--lb-ink-muted);
  cursor: pointer;
}

.lb-toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.lb-toc-item {
  margin-bottom: 8px;
  font-size: 0.92rem;
}

.lb-toc-item a {
  color: var(--lb-ink-body);
}

.lb-toc-item a:hover {
  color: var(--lb-accent-peach);
}

.lb-toc-level-3 {
  padding-left: 20px;
  font-size: 0.88rem;
}

/* Article Body Entry Content */
.entry-content {
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--lb-ink-body);
}

.entry-content h2 {
  font-size: 1.68rem;
  margin-top: 2.2rem;
  margin-bottom: 1rem;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--lb-border);
}

.entry-content h3 {
  font-size: 1.34rem;
  margin-top: 1.8rem;
  margin-bottom: 0.8rem;
}

.entry-content ul,
.entry-content ol {
  margin-bottom: 1.6rem;
  padding-left: 24px;
}

.entry-content li {
  margin-bottom: 0.5rem;
}

.entry-content blockquote {
  border-left: 3px solid var(--lb-accent-peach);
  padding: 14px 20px;
  margin: 24px 0;
  background-color: var(--lb-bg-soft);
  border-radius: 0 var(--lb-radius-sm) var(--lb-radius-sm) 0;
  font-style: italic;
  color: var(--lb-ink-main);
}

.entry-content code {
  font-family: var(--lb-font-mono);
  background-color: var(--lb-bg-code);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.88em;
  color: var(--lb-accent-hover);
}

.entry-content pre {
  background-color: var(--lb-ink-main);
  color: #FAF8F5;
  padding: 18px 22px;
  border-radius: var(--lb-radius-sm);
  overflow-x: auto;
  font-family: var(--lb-font-mono);
  font-size: 0.9rem;
  line-height: 1.6;
  margin: 24px 0;
}

.entry-content pre code {
  background: transparent;
  padding: 0;
  color: inherit;
}

/* Interactive Checklist (Saved locally in browser) */
.lb-checklist-box {
  background-color: var(--lb-bg-surface);
  border: 1px solid var(--lb-border);
  border-radius: var(--lb-radius-md);
  padding: 24px;
  margin: 32px 0;
}

.lb-checklist-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--lb-ink-main);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.lb-checklist-items {
  list-style: none;
  padding: 0;
  margin: 0;
}

.lb-check-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 8px 10px;
  border-radius: var(--lb-radius-sm);
  cursor: pointer;
  transition: background-color 0.15s ease;
}

.lb-check-item:hover {
  background-color: var(--lb-bg-soft);
}

.lb-check-item input[type="checkbox"] {
  margin-top: 5px;
  width: 17px;
  height: 17px;
  cursor: pointer;
  accent-color: var(--lb-accent-sage);
}

.lb-check-item.is-done .lb-check-text {
  text-decoration: line-through;
  color: var(--lb-ink-light);
}

/* FAQ Details Accordion */
.lb-clean-faq-item {
  background-color: var(--lb-bg-surface);
  border: 1px solid var(--lb-border);
  border-radius: var(--lb-radius-sm);
  margin-bottom: 10px;
  overflow: hidden;
}

.lb-clean-faq-q {
  padding: 14px 18px;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  color: var(--lb-ink-main);
  background-color: var(--lb-bg-soft);
}

.lb-clean-faq-a {
  padding: 14px 18px;
  font-size: 0.94rem;
  line-height: 1.7;
  color: var(--lb-ink-body);
}

/* Article Tags & Share */
.lb-article-tags-wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 32px 0 24px;
}

.lb-tag-pill {
  display: inline-block;
  font-size: 0.82rem;
  padding: 4px 12px;
  background-color: var(--lb-bg-soft);
  color: var(--lb-ink-muted);
  border-radius: var(--lb-radius-pill);
  transition: all 0.2s ease;
}

.lb-tag-pill:hover {
  background-color: var(--lb-bg-tint);
  color: var(--lb-ink-main);
}

.lb-article-share-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  background-color: var(--lb-bg-surface);
  border: 1px solid var(--lb-border);
  border-radius: var(--lb-radius-md);
  margin-bottom: 36px;
  gap: 12px;
}

.lb-share-pill-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--lb-ink-main);
  background-color: var(--lb-bg-base);
  border: 1px solid var(--lb-border);
  border-radius: var(--lb-radius-pill);
  cursor: pointer;
  transition: all 0.2s ease;
}

.lb-share-pill-btn:hover {
  border-color: var(--lb-ink-main);
  background-color: var(--lb-bg-soft);
}

/* Author Bio Card */
.lb-author-bio-card {
  display: flex;
  align-items: center;
  gap: 20px;
  background-color: var(--lb-bg-surface);
  border: 1px solid var(--lb-border);
  border-radius: var(--lb-radius-md);
  padding: 24px;
  margin-bottom: 38px;
}

.lb-author-bio-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--lb-ink-main);
  margin-bottom: 6px;
}

.lb-author-bio-text {
  font-size: 0.92rem;
  color: var(--lb-ink-muted);
  line-height: 1.65;
  margin: 0;
}

/* Post Navigation (Prev / Next) */
.lb-post-navigation {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-bottom: 48px;
}

.lb-post-navigation > div a {
  display: flex;
  flex-direction: column;
  padding: 18px;
  background-color: var(--lb-bg-surface);
  border: 1px solid var(--lb-border);
  border-radius: var(--lb-radius-sm);
  height: 100%;
  transition: all 0.2s ease;
}

.lb-post-navigation > div a:hover {
  background-color: var(--lb-bg-soft);
  border-color: var(--lb-ink-light);
}

.lb-nav-dir {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--lb-accent-peach);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.lb-nav-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--lb-ink-main);
  line-height: 1.4;
}

@media (max-width: 600px) {
  .lb-post-navigation {
    grid-template-columns: 1fr;
  }
}

/* Related Content Section */
.lb-related-notes-wrap {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--lb-border);
}

.lb-related-heading {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 22px;
  color: var(--lb-ink-main);
}

/* ==========================================================================
   Tool Single Page & Privacy Callout
   ========================================================================== */
.lb-privacy-promise-banner {
  background-color: var(--lb-sage-soft);
  border: 1px solid rgba(94, 125, 104, 0.2);
  border-radius: var(--lb-radius-md);
  padding: 18px 22px;
  margin-bottom: 28px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.lb-privacy-promise-title {
  font-weight: 700;
  color: var(--lb-accent-sage);
  font-size: 0.96rem;
  margin-bottom: 4px;
}

.lb-privacy-promise-desc {
  font-size: 0.88rem;
  color: var(--lb-ink-body);
  line-height: 1.6;
  margin: 0;
}

.lb-tool-workspace {
  background-color: var(--lb-bg-surface);
  border: 1px solid var(--lb-border);
  border-radius: var(--lb-radius-md);
  padding: 28px;
  margin: 28px 0;
  box-shadow: var(--lb-shadow-soft);
}

/* ==========================================================================
   Pagination
   ========================================================================== */
.lb-pagination-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-top: 44px;
}

.lb-pagination-wrap .page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  height: 38px;
  padding: 0 12px;
  border-radius: var(--lb-radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--lb-ink-muted);
  background-color: var(--lb-bg-surface);
  border: 1px solid var(--lb-border);
  text-decoration: none;
  transition: all 0.2s ease;
}

.lb-pagination-wrap .page-numbers:hover,
.lb-pagination-wrap .page-numbers.current {
  background-color: var(--lb-ink-main);
  color: #FFFFFF;
  border-color: var(--lb-ink-main);
}

/* ==========================================================================
   Comments Area
   ========================================================================== */
.lb-comments-area {
  margin-top: 54px;
  padding-top: 36px;
  border-top: 1px solid var(--lb-border);
}

.lb-comments-title {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 24px;
}

.lb-comment-list {
  list-style: none;
  padding: 0;
  margin: 0 0 36px;
}

.lb-comment-body {
  background-color: var(--lb-bg-surface);
  border: 1px solid var(--lb-border);
  border-radius: var(--lb-radius-sm);
  padding: 20px;
  margin-bottom: 16px;
}

.lb-comment-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.lb-comment-author-name {
  font-weight: 700;
  color: var(--lb-ink-main);
  font-size: 0.95rem;
}

.lb-comment-time {
  font-size: 0.8rem;
  color: var(--lb-ink-muted);
}

.lb-form-row {
  margin-bottom: 16px;
}

.lb-form-row label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--lb-ink-main);
  margin-bottom: 6px;
}

.lb-form-row input[type="text"],
.lb-form-row input[type="email"],
.lb-form-row textarea {
  width: 100%;
  padding: 10px 14px;
  font-family: inherit;
  font-size: 0.95rem;
  border: 1px solid var(--lb-border);
  border-radius: var(--lb-radius-sm);
  background-color: var(--lb-bg-base);
  color: var(--lb-ink-main);
  outline: none;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.lb-form-row input:focus,
.lb-form-row textarea:focus {
  border-color: var(--lb-accent-peach);
  background-color: var(--lb-bg-surface);
}

/* ==========================================================================
   Empty State
   ========================================================================== */
.lb-empty-state {
  text-align: center;
  padding: 44px 20px;
  background-color: var(--lb-bg-surface);
  border: 1px dashed var(--lb-border);
  border-radius: var(--lb-radius-md);
  margin: 16px 0;
}

.lb-empty-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--lb-ink-main);
  margin-bottom: 6px;
}

.lb-empty-desc {
  font-size: 0.9rem;
  color: var(--lb-ink-muted);
  max-width: 480px;
  margin: 0 auto;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.lb-site-footer {
  background-color: var(--lb-bg-surface);
  border-top: 1px solid var(--lb-border);
  padding: 64px 0 32px;
  margin-top: 64px;
}

.lb-footer-cols {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 48px;
  margin-bottom: 48px;
}

.lb-footer-brand-col {
  max-width: 480px;
  flex: 1 1 320px;
}

.lb-footer-nav-col {
  min-width: 180px;
}

.lb-footer-cols h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--lb-ink-main);
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.lb-footer-cols ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.lb-footer-cols li {
  margin-bottom: 10px;
  font-size: 0.9rem;
}

.lb-footer-cols a {
  color: var(--lb-ink-muted);
}

.lb-footer-cols a:hover {
  color: var(--lb-accent-peach);
}

.lb-footer-bottom-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--lb-border-light);
  padding-top: 24px;
  font-size: 0.86rem;
  color: var(--lb-ink-muted);
  flex-wrap: wrap;
  gap: 12px;
}

@media (max-width: 768px) {
  .lb-footer-cols {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

/* Back to Top Button */
.lb-top-btn {
  position: fixed;
  bottom: 26px;
  right: 26px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--lb-bg-surface);
  border: 1px solid var(--lb-border);
  color: var(--lb-ink-main);
  font-size: 1.15rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--lb-shadow-soft);
  opacity: 0;
  pointer-events: none;
  transition: all 0.25s ease;
  z-index: 90;
}

.lb-top-btn.is-active {
  opacity: 1;
  pointer-events: auto;
}

.lb-top-btn:hover {
  background-color: var(--lb-ink-main);
  color: #FFFFFF;
  border-color: var(--lb-ink-main);
  transform: translateY(-2px);
}