:root {
  --bg: #0f172a;
  --surface: #111c3a;
  --card: rgba(15, 23, 42, 0.92);
  --accent: #38bdf8;
  --accent-soft: rgba(56, 189, 248, 0.15);
  --text: #e2e8f0;
  --muted: #94a3b8;
  --border: rgba(148, 163, 184, 0.15);
  --shadow: 0 18px 40px rgba(8, 15, 35, 0.35);
  --radius: 16px;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}

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

body {
  margin: 0;
  background: radial-gradient(circle at top, rgba(56, 189, 248, 0.2), transparent 60%), var(--bg);
  color: var(--text);
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(1100px, 90vw);
  margin: 0 auto;
}

.app-header {
  border-bottom: 1px solid var(--border);
  background: rgba(10, 14, 32, 0.6);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.35), rgba(56, 189, 248, 0.05));
  font-size: 20px;
  font-weight: 700;
  color: var(--accent);
}

.brand-title {
  font-weight: 600;
  font-size: 18px;
}

.brand-subtitle {
  font-size: 13px;
  color: var(--muted);
}

.nav-links {
  display: flex;
  gap: 18px;
}

.nav-links a {
  font-weight: 500;
  color: var(--text);
  padding: 6px 10px;
  border-radius: 10px;
  transition: background 0.2s ease;
}

.nav-links a:hover {
  background: rgba(56, 189, 248, 0.12);
}

/* Desktop navigation - visible by default */
.nav-desktop {
  display: flex;
  gap: 18px;
}

.nav-desktop a {
  text-decoration: none;
}

/* Mobile navigation - hidden by default */
.nav-mobile {
  display: none;
}

/* Mobile styles - below 768px */
@media (max-width: 768px) {
  .nav-desktop {
    display: none;
  }

  .nav-mobile {
    display: flex;
    gap: 10px;
    align-items: center;
  }

  .nav-dropdown {
    position: relative;
  }

  .nav-dropdown-toggle {
    background: rgba(56, 189, 248, 0.1);
    border: 1px solid rgba(56, 189, 248, 0.2);
    color: var(--text);
    padding: 8px 14px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: all 0.2s ease;
    white-space: nowrap;
  }

  .nav-dropdown-toggle:hover {
    background: rgba(56, 189, 248, 0.15);
  }

  .dropdown-arrow {
    font-size: 10px;
    transition: transform 0.2s ease;
  }

  .nav-dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    min-width: 150px;
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    z-index: 1000;
  }

  .nav-dropdown-menu.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .nav-dropdown-menu a {
    display: block;
    padding: 12px 16px;
    color: var(--text);
    text-decoration: none;
    border-bottom: 1px solid var(--border);
    transition: background 0.2s ease;
    font-size: 14px;
  }

  .nav-dropdown-menu a:last-child {
    border-bottom: none;
  }

  .nav-dropdown-menu a:hover {
    background: rgba(56, 189, 248, 0.1);
  }

  .nav-mobile-link {
    background: rgba(56, 189, 248, 0.1);
    border: 1px solid rgba(56, 189, 248, 0.2);
    color: var(--text);
    padding: 8px 14px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: all 0.2s ease;
    white-space: nowrap;
  }

  .nav-mobile-link:hover {
    background: rgba(56, 189, 248, 0.15);
  }

  /* Make header slightly more compact on mobile */
  .header-content {
    padding: 12px 0;
  }

  .brand-subtitle {
    display: none;
  }
}

.main-content {
  padding: 48px 0 80px;
}

.hero {
  background: var(--card);
  padding: 40px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: grid;
  gap: 16px;
  margin-bottom: 40px;
}

.hero h1 {
  margin: 0;
  font-size: 32px;
}

.hero p {
  margin: 0;
  color: var(--muted);
  max-width: 520px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 14px;
  color: var(--muted);
}

.hero-meta strong {
  color: var(--text);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  padding: 10px 18px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  cursor: pointer;
}

.button.primary {
  background: linear-gradient(135deg, #38bdf8, #60a5fa);
  color: #0f172a;
}

.button.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(56, 189, 248, 0.25);
}

.button.secondary {
  border: 1px solid rgba(96, 165, 250, 0.4);
  color: var(--text);
  background: rgba(96, 165, 250, 0.08);
}

.button.secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(96, 165, 250, 0.15);
}

.button.ghost {
  border: 1px solid var(--border);
  color: var(--muted);
  background: transparent;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 22px;
  margin-bottom: 48px;
}

.stat-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.stat-label {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 12px;
}

.stat-value {
  font-size: 32px;
  font-weight: 700;
}

.stat-detail {
  margin-top: 8px;
  font-size: 14px;
  color: var(--muted);
}

.content-section {
  background: var(--card);
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  margin-bottom: 36px;
}

.thread-teasers {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.thread-list {
  display: grid;
  gap: 24px;
}

.thread-card {
  background: rgba(15, 23, 42, 0.85);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 20px;
  display: grid;
  gap: 12px;
}

.thread-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.thread-header h3 {
  margin: 0;
  font-size: 18px;
}

.thread-meta {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.thread-score {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 999px;
  padding: 4px 10px;
}

.log-lines {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 6px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 13px;
}

.log-lines li {
  display: grid;
  grid-template-columns: 70px 120px 1fr;
  gap: 8px;
  align-items: baseline;
}

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

.log-nick {
  color: var(--accent);
}

.log-message {
  color: var(--text);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.section-header h2 {
  margin: 0;
  font-size: 20px;
}

.two-column {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.table-wrapper {
  overflow-x: auto;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.04);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 320px;
}

th,
td {
  text-align: left;
  padding: 14px 16px;
}

thead {
  background: rgba(56, 189, 248, 0.1);
  color: var(--text);
}

tbody tr:nth-child(even) {
  background: rgba(255, 255, 255, 0.02);
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-soft);
  color: var(--text);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 14px;
  border: 1px solid rgba(56, 189, 248, 0.25);
}

.chip-count {
  color: var(--muted);
  font-size: 12px;
}

.page-header {
  margin-bottom: 24px;
}

.page-header h1 {
  margin: 0 0 8px;
  font-size: 28px;
}

.page-header p {
  margin: 0;
  color: var(--muted);
}

.filter-form {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  align-items: flex-end;
  background: var(--card);
  border-radius: var(--radius);
  padding: 20px;
  border: 1px solid var(--border);
  margin-bottom: 28px;
  box-shadow: var(--shadow);
}

.form-group {
  display: flex;
  flex-direction: column;
  min-width: 200px;
  flex: 1;
}

.form-group label {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 6px;
}

input[type="search"],
select {
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 14px;
  color: var(--text);
  font-size: 15px;
}

/* Custom select styling */
.custom-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
  cursor: pointer;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.custom-select:hover {
  border-color: rgba(56, 189, 248, 0.4);
}

.custom-select:focus {
  outline: none;
  border-color: var(--accent);
  background-color: rgba(15, 23, 42, 0.85);
}

.form-actions {
  display: flex;
  gap: 10px;
}

.quote-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.quote-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 20px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  display: grid;
  gap: 12px;
}

.quote-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 12px;
  color: var(--muted);
  font-size: 13px;
}

.quote-meta-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.quote-meta-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.quote-time {
  font-size: 12px;
  color: var(--muted);
}

.quote-score {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 999px;
  padding: 2px 8px;
}

.quote-rank {
  font-size: 12px;
  color: var(--muted);
  background: rgba(148, 163, 184, 0.16);
  border-radius: 999px;
  padding: 2px 8px;
}

.quote-nick {
  font-weight: 600;
  color: var(--accent);
}

.quote-text {
  margin: 0;
  white-space: pre-wrap;
  line-height: 1.5;
}

.quote-foot {
  display: flex;
  gap: 12px;
  font-size: 12px;
  color: var(--muted);
}

.replay-controls {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.replay-controls .button {
  padding: 8px 14px;
}

.replay-controls label {
  font-size: 13px;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.replay-controls select {
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 10px;
  color: var(--text);
}

.replay-status {
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 13px;
}

.replay-log .day-line {
  opacity: 0;
  animation: fadeIn 0.3s ease forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.day-log {
  display: grid;
  gap: 6px;
  max-height: 70vh;
  overflow: auto;
  padding-right: 6px;
}

.day-line {
  display: grid;
  grid-template-columns: 70px 140px 1fr;
  gap: 10px;
  align-items: baseline;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 13px;
  padding: 6px 8px;
  border-radius: 8px;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(148, 163, 184, 0.12);
}

.day-line:nth-child(odd) {
  background: rgba(15, 23, 42, 0.75);
}

.empty-state,
.empty-cell {
  color: var(--muted);
  text-align: center;
  padding: 20px;
}

.card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.word-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.word-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  border-radius: 12px;
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.18);
}

.word-term {
  font-weight: 600;
  letter-spacing: 0.02em;
}

.word-count {
  color: var(--muted);
  font-size: 13px;
}

/* Tag-based participant picker */
.tag-container {
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 8px;
  min-height: 42px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  cursor: text;
  transition: border-color 0.2s ease;
}

.tag-container:focus-within {
  border-color: var(--accent);
}

.tag-placeholder {
  color: var(--muted);
  font-size: 14px;
  user-select: none;
  pointer-events: none;
}

.participant-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.25), rgba(96, 165, 250, 0.15));
  color: var(--text);
  border: 1px solid rgba(56, 189, 248, 0.35);
  border-radius: 8px;
  padding: 4px 8px 4px 10px;
  font-size: 13px;
  font-weight: 500;
  animation: tagFadeIn 0.2s ease;
}

@keyframes tagFadeIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.remove-tag {
  background: none;
  border: none;
  color: var(--accent);
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  padding: 0;
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: background 0.15s ease;
}

.remove-tag:hover {
  background: rgba(56, 189, 248, 0.2);
}

.dropdown-list {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  background: rgba(15, 23, 42, 0.98);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  max-height: 300px;
  overflow-y: auto;
  z-index: 1000;
  backdrop-filter: blur(10px);
}

.dropdown-item {
  padding: 10px 14px;
  cursor: pointer;
  transition: background 0.15s ease;
  font-size: 14px;
  border-bottom: 1px solid rgba(148, 163, 184, 0.08);
}

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

.dropdown-item:hover {
  background: rgba(56, 189, 248, 0.12);
}

.dropdown-item.selected {
  background: rgba(56, 189, 248, 0.08);
  color: var(--accent);
}

/* Advanced filters styling */
.advanced-filters-section {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0;
  margin-bottom: 24px;
}

.advanced-filters-toggle {
  cursor: pointer;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  user-select: none;
  transition: background 0.2s ease;
}

.advanced-filters-toggle:hover {
  background: rgba(56, 189, 248, 0.05);
}

.toggle-icon {
  color: var(--accent);
  font-size: 14px;
  transition: transform 0.2s ease;
}

details[open] .toggle-icon {
  transform: rotate(90deg);
}

.advanced-filter-form {
  padding: 20px;
  border-top: 1px solid var(--border);
}

.filter-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}

.filter-group {
  display: flex;
  flex-direction: column;
}

.filter-group label {
  display: flex;
  align-items: center;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 6px;
  font-weight: 500;
}

.filter-group input[type="number"],
.filter-group input[type="date"] {
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  color: var(--text);
  font-size: 14px;
  transition: border-color 0.2s ease;
}

.filter-group input:focus {
  outline: none;
  border-color: var(--accent);
}

/* Context messages styling */
.context-message {
  background: rgba(148, 163, 184, 0.08) !important;
  border-left: 3px solid rgba(148, 163, 184, 0.3);
  padding-left: 12px !important;
  opacity: 0.85;
}

.original-message {
  border-left: 3px solid transparent;
  padding-left: 12px;
}

.context-badge {
  display: inline-block;
  margin-left: 8px;
  padding: 2px 6px;
  background: rgba(148, 163, 184, 0.2);
  border-radius: 4px;
  font-size: 11px;
  color: var(--muted);
  cursor: pointer;
  transition: background 0.2s ease;
}

.context-badge:hover {
  background: rgba(148, 163, 184, 0.3);
}

.app-footer {
  border-top: 1px solid var(--border);
  background: rgba(10, 14, 32, 0.75);
  backdrop-filter: blur(10px);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 0;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 720px) {
  .header-content {
    flex-direction: column;
    gap: 16px;
  }

  .nav-links {
    flex-wrap: wrap;
    justify-content: center;
  }

  .hero {
    padding: 30px;
  }

  .hero-meta {
    justify-content: center;
    text-align: center;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .two-column {
    grid-template-columns: 1fr;
  }

  .log-lines li {
    grid-template-columns: 55px 90px 1fr;
  }

  .day-line {
    grid-template-columns: 55px 90px 1fr;
  }

  .footer-content {
    flex-direction: column;
    gap: 6px;
    text-align: center;
  }
}