/* 
 * 全龙语2.0 Style Sheets
 * Created with premium modern aesthetics: HSL color system, glassmorphism, responsive grid, and day/night transitions.
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;600;800&family=Noto+Sans+SC:wght@300;400;500;700&display=swap');

/* --- CSS Variables & Design System --- */
:root {
  /* Day Theme (Light Mode) */
  --bg-primary: hsl(210, 30%, 98%);
  --bg-surface: rgba(255, 255, 255, 0.7);
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-modal: rgba(255, 255, 255, 0.9);
  --border-color: rgba(226, 232, 240, 0.7);
  --border-hover: rgba(99, 102, 241, 0.3);
  --text-primary: hsl(215, 25%, 15%);
  --text-secondary: hsl(215, 15%, 45%);
  --text-muted: hsl(215, 12%, 60%);
  --accent-color: hsl(250, 70%, 55%);
  --accent-hover: hsl(250, 80%, 45%);
  --accent-glow: rgba(99, 102, 241, 0.15);
  --accent-gradient: linear-gradient(135deg, hsl(250, 70%, 55%), hsl(280, 75%, 60%));
  --heart-color: hsl(350, 80%, 60%);
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
  --shadow-lg: 0 20px 25px -5px rgba(31, 38, 135, 0.06), 0 10px 10px -5px rgba(0, 0, 0, 0.02);
  --glass-blur: blur(12px);
  --card-radius: 16px;
  --transition-speed: 0.3s;
}

[data-theme="dark"] {
  /* Night Theme (Dark Mode) */
  --bg-primary: hsl(222, 47%, 10%);
  --bg-surface: rgba(15, 23, 42, 0.55);
  --bg-card: rgba(30, 41, 59, 0.7);
  --bg-modal: rgba(15, 23, 42, 0.9);
  --border-color: rgba(51, 65, 85, 0.5);
  --border-hover: rgba(139, 92, 246, 0.4);
  --text-primary: hsl(210, 40%, 96%);
  --text-secondary: hsl(215, 20%, 75%);
  --text-muted: hsl(215, 15%, 55%);
  --accent-color: hsl(250, 85%, 72%);
  --accent-hover: hsl(250, 95%, 80%);
  --accent-glow: rgba(139, 92, 246, 0.25);
  --accent-gradient: linear-gradient(135deg, hsl(250, 85%, 72%), hsl(285, 80%, 75%));
  --heart-color: hsl(350, 90%, 65%);
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.2), 0 2px 4px -1px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  --glass-blur: blur(16px);
}

/* --- Base & Scrollbar --- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Outfit', 'Inter', 'Noto Sans SC', sans-serif;
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
}

html, body {
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
  position: relative;
}

/* Background blobs for premium depth */
body::before, body::after {
  content: '';
  position: absolute;
  width: 40vw;
  height: 40vw;
  border-radius: 50%;
  z-index: -1;
  filter: blur(100px);
  opacity: 0.15;
  pointer-events: none;
}

body::before {
  top: -10vw;
  left: -10vw;
  background: var(--accent-color);
}

body::after {
  bottom: 10vw;
  right: -10vw;
  background: hsl(280, 75%, 60%);
}

/* Scrollbar Customization */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* --- Header / Navigation --- */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  transition: background-color var(--transition-speed) ease, border-color var(--transition-speed) ease;
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
}

.logo-section {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.logo-section h1 {
  font-size: 1.5rem;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.5px;
}

.logo-icon {
  font-size: 1.8rem;
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Common button styles */
.icon-btn, .text-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  outline: none;
}

.icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  font-size: 1.1rem;
}

.icon-btn:hover {
  background-color: var(--border-color);
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.text-btn {
  padding: 0.5rem 1.2rem;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 500;
}

.text-btn:hover {
  background-color: var(--border-color);
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.text-btn.primary {
  background: var(--accent-gradient);
  color: white;
  border: none;
  box-shadow: 0 4px 14px var(--accent-glow);
}

.text-btn.primary:hover {
  opacity: 0.95;
  box-shadow: 0 6px 20px var(--accent-glow);
}

/* User identity pill */
.user-pill {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 0.35rem 1rem 0.35rem 0.6rem;
  border-radius: 24px;
  cursor: pointer;
  max-width: 180px;
  transition: all 0.2s ease;
}

.user-pill:hover {
  border-color: var(--border-hover);
  background-color: var(--border-color);
  transform: translateY(-1px);
}

.user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent-gradient);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.8rem;
}

.username-label {
  font-size: 0.85rem;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Notification wrapper */
.notif-wrapper {
  position: relative;
}

.notif-badge {
  position: absolute;
  top: -2px;
  right: -2px;
  background-color: var(--heart-color);
  color: white;
  font-size: 0.7rem;
  font-weight: 700;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

/* --- Hero Banner --- */
.hero-banner {
  max-width: 1400px;
  margin: 2.5rem auto 1.5rem;
  padding: 0 2rem;
  text-align: center;
}

.hero-banner h2 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  letter-spacing: -1px;
}

.hero-banner p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

/* --- Search & Filters Bar --- */
.controls-container {
  max-width: 1400px;
  margin: 1rem auto 2rem;
  padding: 0 2rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
}

.search-box {
  position: relative;
  flex: 1;
  min-width: 280px;
  max-width: 500px;
}

.search-input {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.8rem;
  border-radius: 30px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  color: var(--text-primary);
  outline: none;
  font-size: 0.95rem;
  transition: all 0.25s ease;
  backdrop-filter: var(--glass-blur);
}

.search-input:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.search-icon {
  position: absolute;
  left: 1.1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 1.1rem;
  pointer-events: none;
}

.filter-section {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.select-filter {
  padding: 0.7rem 1.5rem;
  border-radius: 20px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  color: var(--text-primary);
  outline: none;
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.2s;
}

.select-filter:focus {
  border-color: var(--accent-color);
}

.stat-tag {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
}

/* --- Quote Grid --- */
.quotes-grid {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem 3rem;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
  flex: 1;
}

.quote-card {
  position: relative;
  background-color: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  padding: 1.8rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1.2rem;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  box-shadow: var(--shadow-sm);
  overflow: visible;
}

/* Locally clipped watermark container so the decorative mark doesn't bleed out */
.card-watermark {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
  border-radius: var(--card-radius);
  pointer-events: none;
  z-index: 0;
}

.card-watermark::before {
  content: '“';
  position: absolute;
  bottom: -20px;
  right: 15px;
  font-size: 8rem;
  font-family: Georgia, serif;
  color: var(--border-color);
  opacity: 0.12;
  line-height: 1;
  pointer-events: none;
  transition: opacity 0.3s;
}

.quote-card:hover .card-watermark::before {
  opacity: 0.22;
}

.quote-card-content {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  flex: 1;
}

.quote-footer {
  display: flex;
  justify-content: flex-end;
  margin-top: auto;
  padding-top: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
}

.quote-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-lg);
}

.quote-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.2rem;
}

.quote-id {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  background-color: var(--border-color);
  color: var(--text-secondary);
  padding: 0.2rem 0.6rem;
  border-radius: 12px;
}

.quote-date {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
}

.quote-body {
  font-size: 1.1rem;
  line-height: 1.6;
  font-weight: 500;
  color: var(--text-primary);
  flex: 1;
  word-break: break-word;
}

/* --- Comment Indicators --- */
/* 1. Comment Dot (when empty) - Inline next to sentence */
.comment-dot {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  vertical-align: middle;
  cursor: pointer;
  position: relative;
  transition: all 0.25s ease;
  margin-left: 0.5rem;
  font-size: 0.85rem;
  user-select: none;
}

.comment-dot::before {
  content: '💬';
  opacity: 0.35;
  transition: all 0.25s ease;
}

.comment-dot:hover::before {
  opacity: 1;
}

.comment-dot:hover {
  transform: scale(1.2);
}

.comment-dot::after {
  content: '点击添加留言';
  position: absolute;
  bottom: 150%;
  left: 50%;
  transform: translateX(-50%) scale(0.8);
  background-color: var(--text-primary);
  color: var(--bg-primary);
  padding: 0.3rem 0.6rem;
  font-size: 0.75rem;
  border-radius: 6px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: all 0.2s ease;
  z-index: 10;
}

.comment-dot:hover::after {
  opacity: 1;
  transform: translateX(-50%) scale(1);
}

/* 2. Comment Pill (when has comments < 20 likes) - Inline next to sentence */
.comment-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  padding: 0.15rem 0.5rem;
  border-radius: 12px;
  background-color: var(--border-color);
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
  vertical-align: middle;
  margin-left: 0.5rem;
}

.comment-pill:hover {
  background-color: var(--accent-color);
  color: white;
  transform: translateY(-1px);
}

/* 3. Block Comment wrapper for Hot comments */
.quote-block-comment {
  margin-top: 0.8rem;
  border-top: 1px dashed var(--border-color);
  padding-top: 0.8rem;
  width: 100%;
}

/* 4. Hot Comment Card (when comment has > 20 likes) - Displayed below */
.hot-comment-card {
  background-color: var(--border-color);
  border-radius: 12px;
  padding: 0.6rem 0.8rem;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 0.85rem;
  border: 1px solid transparent;
  width: 100%;
}

.hot-comment-card:hover {
  border-color: var(--border-hover);
  background-color: var(--bg-surface);
  transform: translateY(-1px);
}

.hot-comment-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.2rem;
  align-items: center;
}

.hot-comment-user {
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.hot-comment-likes {
  color: var(--heart-color);
  font-size: 0.75rem;
  font-weight: 600;
}

.hot-comment-text {
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* --- Global Guestbook (总留言) --- */
.guestbook-section {
  max-width: 1400px;
  margin: 3rem auto;
  padding: 0 2rem;
  width: 100%;
}

.guestbook-card {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 2px solid var(--accent-color);
  box-shadow: var(--shadow-lg), 0 0 15px var(--accent-glow);
  border-radius: 20px;
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
}

.guestbook-card::before {
  content: 'GUESTBOOK';
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--border-color);
  opacity: 0.3;
  letter-spacing: 3px;
  pointer-events: none;
}

.guestbook-title {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.guestbook-desc {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

/* Form Styling */
.guestbook-form {
  margin-bottom: 2rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-input-text {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  color: var(--text-primary);
  padding: 0.8rem 1rem;
  font-size: 0.95rem;
  outline: none;
  transition: all 0.2s ease;
}

.form-input-text:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-textarea {
  min-height: 100px;
  resize: vertical;
}

.form-actions {
  display: flex;
  justify-content: flex-end;
}

/* List of global guestbook entries */
.guestbook-list {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  max-height: 500px;
  overflow-y: auto;
  padding-right: 0.5rem;
}

.guestbook-item {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.2rem;
  transition: all 0.2s ease;
}

.guestbook-item:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-sm);
}

.guestbook-item-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.guestbook-item-meta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.guestbook-item-user {
  font-weight: 700;
  font-size: 0.9rem;
}

.guestbook-item-date {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.guestbook-item-content {
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--text-primary);
  margin-bottom: 0.6rem;
  word-break: break-all;
}

.guestbook-item-footer {
  display: flex;
  gap: 1rem;
  font-size: 0.8rem;
}

/* --- Modals / Popups --- */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  padding: 1.5rem;
}

#authModal, #deleteModal {
  z-index: 250; /* Higher z-index to overlay on top of the comment details modal */
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-container {
  background-color: var(--bg-modal);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  box-shadow: var(--shadow-lg);
  max-width: 600px;
  width: 100%;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  transform: translateY(20px);
  transition: transform 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  overflow: hidden;
}

.modal-overlay.active .modal-container {
  transform: translateY(0);
}

.modal-header {
  padding: 1.2rem 1.8rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  font-size: 1.2rem;
  font-weight: 700;
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
  transition: color 0.2s;
  display: flex;
  align-items: center;
}

.modal-close-btn:hover {
  color: var(--text-primary);
}

.modal-body {
  padding: 1.8rem;
  overflow-y: auto;
  flex: 1;
}

/* Auth modal specifics */
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--text-secondary);
}

/* Comment Detail Modal Scroll List */
.comment-detail-quote {
  background-color: var(--bg-surface);
  border-left: 4px solid var(--accent-color);
  padding: 1rem;
  border-radius: 0 12px 12px 0;
  margin-bottom: 1.5rem;
  font-weight: 500;
  font-size: 1.05rem;
}

.comments-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.comment-node {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.8rem;
}

.comment-node:last-child {
  border-bottom: none;
}

.comment-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  margin-bottom: 0.3rem;
}

.comment-user {
  font-weight: 700;
  display: inline-flex;
  align-items: center;
}

/* Badge for self comments / anonymous self comments */
.my-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 0.1rem 0.4rem;
  border-radius: 6px;
  margin-left: 0.35rem;
  vertical-align: middle;
  line-height: 1.2;
  background: var(--accent-gradient);
  color: white;
  box-shadow: 0 2px 4px var(--accent-glow);
}

/* For identified self comment "我" */
.my-badge.outline {
  background: transparent;
  color: var(--accent-color);
  border: 1px solid var(--accent-color);
  box-shadow: none;
}

/* Color adjustments for users */
.user-anon-me {
  color: var(--accent-color) !important;
  font-weight: 700;
}

.user-me {
  color: var(--text-primary) !important;
  font-weight: 700;
}

/* Inline containers to align user tags */
.reply-user-container, .hot-comment-user, .guestbook-item-user {
  display: inline-flex;
  align-items: center;
}

.comment-time {
  color: var(--text-muted);
}

.comment-text {
  font-size: 0.92rem;
  line-height: 1.5;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
  word-break: break-all;
}

.comment-actions {
  display: flex;
  gap: 1rem;
  font-size: 0.78rem;
}

.action-link {
  color: var(--text-secondary);
  text-decoration: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  background: none;
  border: none;
  outline: none;
  transition: color 0.15s;
}

.action-link:hover {
  color: var(--accent-color);
}

.action-link.like-btn.liked {
  color: var(--heart-color);
}

.action-link.delete-btn {
  color: var(--text-muted);
}

.action-link.delete-btn:hover {
  color: var(--heart-color);
}

/* Nested replies list */
.replies-list {
  margin-top: 0.8rem;
  padding-left: 1.5rem;
  border-left: 2px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.reply-node {
  font-size: 0.85rem;
}

.reply-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.2rem;
}

.reply-user {
  font-weight: 700;
}

.reply-to-tag {
  color: var(--accent-color);
  font-weight: 600;
}

.reply-time {
  color: var(--text-muted);
}

.reply-text {
  line-height: 1.4;
  color: var(--text-secondary);
  margin-bottom: 0.3rem;
  word-break: break-all;
}

/* Comment Form */
.comment-form {
  border-top: 1px solid var(--border-color);
  padding-top: 1.2rem;
}

.reply-indicator {
  display: none;
  background-color: var(--border-color);
  padding: 0.4rem 1rem;
  border-radius: 8px;
  font-size: 0.8rem;
  margin-bottom: 0.8rem;
  justify-content: space-between;
  align-items: center;
}

.reply-indicator.active {
  display: flex;
}

/* --- Notification Center Panel --- */
.notif-popover {
  position: absolute;
  top: 110%;
  right: 0;
  width: 320px;
  max-height: 400px;
  background-color: var(--bg-modal);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  z-index: 150;
  display: none;
  flex-direction: column;
  overflow: hidden;
}

.notif-popover.active {
  display: flex;
  animation: slideDown 0.25s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.notif-header {
  padding: 0.8rem 1.2rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.notif-title {
  font-weight: 700;
  font-size: 0.9rem;
}

.notif-list {
  overflow-y: auto;
  flex: 1;
}

.notif-item {
  padding: 0.8rem 1.2rem;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.82rem;
  line-height: 1.4;
  cursor: pointer;
  transition: background-color 0.2s;
}

.notif-item:hover {
  background-color: var(--border-color);
}

.notif-item:last-child {
  border-bottom: none;
}

.notif-item.unread {
  background-color: var(--accent-glow);
}

.notif-item-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.15rem;
}

.notif-user {
  font-weight: 700;
}

.notif-time {
  color: var(--text-muted);
  font-size: 0.75rem;
}

.notif-content {
  color: var(--text-secondary);
}

.notif-empty {
  padding: 2rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* --- Footer --- */
footer {
  text-align: center;
  padding: 2.5rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  margin-top: auto;
}

/* --- Animations --- */
@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.1); }
  100% { transform: scale(1); }
}

.heart-beat {
  animation: pulse 0.3s ease-in-out;
}

/* --- Responsive Adaptations --- */
@media (max-width: 768px) {
  .nav-container {
    padding: 0.8rem 1rem;
  }
  
  .hero-banner {
    margin: 1.5rem auto 1rem;
    padding: 0 1rem;
  }
  
  .hero-banner h2 {
    font-size: 1.8rem;
  }
  
  .controls-container {
    padding: 0 1rem;
    flex-direction: column;
    align-items: stretch;
    gap: 0.8rem;
  }
  
  .search-box {
    max-width: none;
  }
  
  .filter-section {
    justify-content: space-between;
    width: 100%;
  }
  
  .quotes-grid {
    padding: 0 1rem 2rem;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  }
  
  .guestbook-section {
    padding: 0 1rem;
    margin: 2rem auto;
  }
  
  .guestbook-card {
    padding: 1.5rem;
  }
  
  .guestbook-card::before {
    display: none;
  }
}

/* Mobile fine-tuning optimizations */
@media (max-width: 500px) {
  .logo-section h1 {
    font-size: 1.25rem;
  }
  
  .logo-icon {
    font-size: 1.5rem;
  }
  
  .nav-controls {
    gap: 0.6rem;
  }
  
  .icon-btn {
    width: 36px;
    height: 36px;
    font-size: 1rem;
  }
  
  /* Profile Pill: show only avatar on very small screens to save space */
  .username-label {
    display: none;
  }
  
  .user-pill {
    padding: 0.35rem;
    border-radius: 50%;
  }
  
  .quotes-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
    padding: 0 0.8rem 1.5rem;
  }
  
  .quote-card {
    padding: 1.2rem;
    gap: 0.8rem;
  }
  
  .quote-body {
    font-size: 1rem;
  }
  
  .quote-card::before {
    font-size: 5rem;
    bottom: -10px;
    right: 10px;
  }
  
  /* Select and filter layout grid */
  .filter-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    width: 100%;
  }
  
  .select-filter {
    padding: 0.6rem 1rem;
    font-size: 0.82rem;
    text-align: center;
  }
  
  .stat-tag {
    padding: 0.6rem 1rem;
    font-size: 0.82rem;
    text-align: center;
  }
  
  /* Modals */
  .modal-overlay {
    padding: 0.8rem;
  }
  
  .modal-container {
    max-height: 90vh;
  }
  
  .modal-header {
    padding: 1rem 1.2rem;
  }
  
  .modal-body {
    padding: 1.2rem;
  }
  
  /* Replies nested layout */
  .replies-list {
    padding-left: 0.8rem;
  }
  
  /* Fixed positioning for notifications panel on mobile to prevent clipping */
  .notif-popover {
    position: fixed;
    top: 60px;
    left: 10px;
    right: 10px;
    width: auto;
    max-height: 60vh;
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
  }
}

/* --- Onboarding Toast for Quote Comments --- */
.onboarding-toast {
  position: fixed;
  top: 5.5rem; /* Positioned below the header */
  left: 50%;
  transform: translate(-50%, -50px);
  background-color: var(--bg-modal);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--accent-color);
  color: var(--text-primary);
  padding: 0.6rem 1.2rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  box-shadow: var(--shadow-lg), 0 0 10px var(--accent-glow);
  z-index: 1000;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s ease;
  opacity: 0;
  pointer-events: none;
  white-space: nowrap;
}

.onboarding-toast.show {
  transform: translate(-50%, 0);
  opacity: 1;
}

@media (max-width: 500px) {
  .onboarding-toast {
    font-size: 0.78rem;
    padding: 0.5rem 1rem;
    top: 5rem;
  }
}

/* --- Floating Guestbook Button --- */
.floating-gb-btn {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background-color: var(--bg-modal);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--accent-color);
  color: var(--text-primary);
  padding: 0.7rem 1.2rem;
  border-radius: 30px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--shadow-md), 0 0 10px var(--accent-glow);
  z-index: 90;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  user-select: none;
}

.floating-gb-btn:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: var(--shadow-lg), 0 0 15px var(--accent-glow);
  border-color: var(--accent-hover);
}

.floating-gb-btn:active {
  transform: translateY(-1px) scale(0.98);
}

.floating-gb-btn.hidden {
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
}

@media (max-width: 768px) {
  .floating-gb-btn {
    bottom: 1.5rem;
    right: 1.5rem;
    padding: 0.6rem 1rem;
    font-size: 0.82rem;
  }
}