* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg: #0f1419;
  --bg-secondary: #16202a;
  --bg-card: #1c2732;
  --bg-hover: #22303c;
  --border: #2f3b47;
  --text: #e7e9ea;
  --text-secondary: #8b98a5;
  --accent: #1d9bf0;
  --accent-hover: #1a8cd8;
  --green: #00ba7c;
  --pink: #f91880;
  --yellow: #ffd700;
  --highlight: rgba(29, 155, 240, 0.2);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
}

/* Header */
.header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
  text-align: center;
}

.header-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 20px;
}

.logo {
  font-size: 28px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.5px;
}

.tagline {
  color: var(--text-secondary);
  font-size: 14px;
  margin-top: 4px;
}

/* Main */
.main {
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
  min-height: calc(100vh - 140px);
}

/* Persona Selector */
.persona-selector h2 {
  font-size: 20px;
  margin-bottom: 16px;
  color: var(--text);
}

/* Global search card */
.global-search-card {
  background: linear-gradient(135deg, rgba(29, 155, 240, 0.12), rgba(249, 24, 128, 0.08));
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  margin-bottom: 24px;
}

.global-search-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
  letter-spacing: -0.2px;
}

.global-search-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.global-search-bar input {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 14px 18px;
  border-radius: 25px;
  font-size: 15px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.global-search-bar input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(29, 155, 240, 0.15);
}

.global-search-bar input::placeholder {
  color: var(--text-secondary);
}

.global-search-modes {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.mode-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.mode-btn:hover {
  color: var(--text);
  border-color: var(--accent);
}

.mode-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

/* Global results */
.global-results {
  animation: fadeIn 0.3s ease;
  margin-bottom: 24px;
}

.global-results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.global-results-info {
  font-size: 14px;
  color: var(--text-secondary);
}

.global-results-info strong {
  color: var(--accent);
}

.global-loading {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-secondary);
  font-size: 14px;
}

.global-loading::after {
  content: '';
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-left: 8px;
  vertical-align: middle;
}

.result-persona-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  padding: 4px 12px 4px 4px;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.15s;
  margin-bottom: 10px;
  text-decoration: none;
  color: var(--text);
}

.result-persona-chip:hover {
  border-color: var(--accent);
  background: var(--bg-hover);
}

.result-persona-chip img {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  object-fit: cover;
}

.result-persona-chip .chip-name {
  font-size: 13px;
  font-weight: 600;
}

.result-persona-chip .chip-handle {
  font-size: 12px;
  color: var(--text-secondary);
}

.result-type-badge {
  display: inline-block;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 2px 8px;
  border-radius: 10px;
  margin-left: 8px;
  vertical-align: middle;
}

.result-type-badge.nota {
  color: var(--pink);
  border-color: rgba(249, 24, 128, 0.4);
}

.result-type-badge.tweet {
  color: var(--accent);
  border-color: rgba(29, 155, 240, 0.4);
}

.persona-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
}

.persona-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 14px;
}

.persona-foto {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.persona-card:hover {
  background: var(--bg-hover);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.persona-card .name {
  font-size: 18px;
  font-weight: 700;
}

.persona-card .handle {
  color: var(--text-secondary);
  font-size: 14px;
}

.persona-card .stats {
  margin-top: 8px;
  font-size: 13px;
  color: var(--text-secondary);
}

/* Search Panel */
.search-panel {
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.persona-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.btn-back {
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 20px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-back:hover {
  background: var(--bg-hover);
  border-color: var(--accent);
}

.persona-info h2 {
  font-size: 20px;
  font-weight: 700;
}

.persona-info .handle {
  color: var(--text-secondary);
  font-size: 14px;
  margin-right: 12px;
}

.tweet-count {
  background: var(--accent);
  color: white;
  font-size: 12px;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 12px;
}

/* Search Bar */
.search-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.search-bar input {
  flex: 1;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 12px 16px;
  border-radius: 25px;
  font-size: 15px;
  outline: none;
  transition: border-color 0.2s;
}

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

.search-bar input::placeholder {
  color: var(--text-secondary);
}

.btn-search {
  background: var(--accent);
  color: white;
  border: none;
  padding: 12px 24px;
  border-radius: 25px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s;
  white-space: nowrap;
}

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

/* Filters */
.filters {
  display: flex;
  gap: 12px;
  align-items: flex-end;
  flex-wrap: wrap;
  margin-bottom: 16px;
  padding: 12px 16px;
  background: var(--bg-secondary);
  border-radius: 12px;
  border: 1px solid var(--border);
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.filter-group label {
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.filter-group input,
.filter-group select {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 13px;
  outline: none;
}

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

.btn-clear {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
  margin-left: auto;
}

.btn-clear:hover {
  border-color: var(--pink);
  color: var(--pink);
}

/* Results Info */
.results-info {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 12px;
  padding: 0 4px;
}

.results-info strong {
  color: var(--accent);
}

/* Tweet Cards */
.tweets-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.tweet-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  transition: background 0.15s;
}

.tweet-card:hover {
  background: var(--bg-hover);
}

.tweet-date {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.tweet-text {
  font-size: 15px;
  line-height: 1.6;
  margin-bottom: 12px;
  white-space: pre-wrap;
  word-wrap: break-word;
}

.tweet-text mark {
  background: var(--highlight);
  color: var(--accent);
  padding: 1px 3px;
  border-radius: 3px;
  font-weight: 600;
}

.tweet-metrics {
  display: flex;
  gap: 20px;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.metric {
  display: flex;
  align-items: center;
  gap: 4px;
}

.metric-replies { color: var(--accent); }
.metric-retweets { color: var(--green); }
.metric-likes { color: var(--pink); }
.metric-views { color: var(--text-secondary); }

.tweet-link {
  display: inline-block;
  color: var(--accent);
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  padding: 4px 12px;
  border: 1px solid var(--accent);
  border-radius: 20px;
  transition: all 0.2s;
}

.tweet-link:hover {
  background: var(--accent);
  color: white;
}

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 20px;
  padding: 16px 0;
}

.btn-page {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 20px;
  border-radius: 20px;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-page:hover:not(:disabled) {
  background: var(--accent);
  border-color: var(--accent);
}

.btn-page:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

#pageInfo {
  font-size: 14px;
  color: var(--text-secondary);
}

/* Content Selector */
.content-selector {
  animation: fadeIn 0.3s ease;
}

.content-selector .btn-back {
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 20px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.content-selector .btn-back:hover {
  background: var(--bg-hover);
  border-color: var(--accent);
}

.persona-info-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.persona-foto-lg {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  object-fit: cover;
}

.persona-info-header h2 {
  font-size: 22px;
  font-weight: 700;
}

.persona-info-header .handle {
  color: var(--text-secondary);
  font-size: 15px;
}

.content-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.content-option {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px 24px;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 16px;
}

.content-option:hover {
  background: var(--bg-hover);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.content-option-icon {
  color: var(--accent);
  flex-shrink: 0;
}

.content-option-text h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 4px;
}

.content-option-text p {
  font-size: 13px;
  color: var(--text-secondary);
}

.content-option.disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.content-option.disabled:hover {
  background: var(--bg-card);
  border-color: var(--border);
  transform: none;
}

/* Nota Cards */
.nota-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  transition: background 0.15s;
}

.nota-card:hover {
  background: var(--bg-hover);
}

.nota-header {
  margin-bottom: 12px;
}

.nota-titulo {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 4px;
}

.nota-subtitulo {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.4;
  margin-bottom: 8px;
}

.nota-meta {
  display: flex;
  gap: 16px;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.nota-fuente {
  background: var(--accent);
  color: white;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 8px;
}

.nota-cuerpo-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.nota-texto {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text);
  white-space: pre-wrap;
  word-wrap: break-word;
}

.nota-texto mark {
  background: var(--highlight);
  color: var(--accent);
  padding: 1px 3px;
  border-radius: 3px;
  font-weight: 600;
}

.nota-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

.btn-expand {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-expand:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.nota-link {
  display: inline-block;
  color: var(--accent);
  text-decoration: none;
  font-size: 12px;
  font-weight: 600;
  padding: 6px 14px;
  border: 1px solid var(--accent);
  border-radius: 20px;
  transition: all 0.2s;
}

.nota-link:hover {
  background: var(--accent);
  color: white;
}

/* No Results */
.no-results {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
}

.no-results h3 {
  font-size: 18px;
  margin-bottom: 8px;
  color: var(--text);
}

/* Loading */
.loading {
  text-align: center;
  padding: 40px;
  color: var(--text-secondary);
}

.loading::after {
  content: '';
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-left: 8px;
  vertical-align: middle;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Footer */
.footer {
  text-align: center;
  padding: 20px;
  font-size: 12px;
  color: var(--text-secondary);
  border-top: 1px solid var(--border);
}

/* Utility */
.hidden {
  display: none !important;
}

/* Responsive */
@media (max-width: 600px) {
  .header-content { padding: 0 16px; }
  .main { padding: 16px; }
  .logo { font-size: 22px; }

  .search-bar {
    flex-direction: column;
  }

  .filters {
    flex-direction: column;
    align-items: stretch;
  }

  .filter-group {
    width: 100%;
  }

  .filter-group input,
  .filter-group select {
    width: 100%;
  }

  .btn-clear {
    margin-left: 0;
    text-align: center;
  }

  .tweet-metrics {
    flex-wrap: wrap;
    gap: 12px;
  }

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

  .content-options {
    grid-template-columns: 1fr;
  }
}