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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: #0a0a0a;
  color: #e0e0e0;
  min-height: 100vh;
}

.navbar {
  background: #111;
  padding: 1rem 2rem;
  border-bottom: 1px solid #222;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  color: #25d366;
  text-decoration: none;
  font-size: 1.3rem;
  font-weight: 700;
}

.navbar .btn-logout {
  padding: 0.35rem 0.8rem;
  background: transparent;
  border: 1px solid #333;
  border-radius: 6px;
  color: #999;
  cursor: pointer;
  font-size: 0.8rem;
  text-decoration: none;
  transition: all 0.2s;
}

.navbar .btn-logout:hover {
  border-color: #dc3545;
  color: #ff6666;
}

/* Login page */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 2rem;
}

.login-card {
  background: #161616;
  border: 1px solid #252525;
  border-radius: 12px;
  padding: 2.5rem;
  width: 100%;
  max-width: 400px;
}

.login-header {
  text-align: center;
  margin-bottom: 1.5rem;
}

.login-header h1 {
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
}

.login-header p {
  color: #666;
  font-size: 0.9rem;
}

.login-btn {
  width: 100%;
  padding: 0.7rem;
  font-size: 0.95rem;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

h1 {
  margin-bottom: 1.5rem;
  color: #fff;
}

h2 {
  margin-bottom: 1rem;
  color: #ccc;
  font-size: 1.3rem;
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1rem;
}

.card {
  background: #161616;
  border: 1px solid #252525;
  border-radius: 10px;
  overflow: hidden;
}

.card-header {
  padding: 1rem 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  border-bottom: 1px solid #252525;
}

.card-header h3 {
  font-size: 1rem;
  color: #fff;
}

.card-body {
  padding: 1rem 1.2rem;
}

.card-body p {
  margin-bottom: 0.4rem;
  font-size: 0.9rem;
  color: #999;
}

.card-footer {
  padding: 0.8rem 1.2rem;
  border-top: 1px solid #252525;
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* Status */
.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}

.status-dot.online { background: #25d366; box-shadow: 0 0 6px #25d366; }
.status-dot.offline { background: #ff4444; }

/* Instance info */
.instance-info {
  background: #161616;
  padding: 0.8rem 1.2rem;
  border-radius: 8px;
  margin-bottom: 1.5rem;
  border: 1px solid #252525;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.55rem 1.2rem;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  transition: opacity 0.2s;
}

.btn:hover { opacity: 0.85; }
.btn-sm { padding: 0.35rem 0.8rem; font-size: 0.8rem; }
.btn-primary { background: #25d366; color: #000; }
.btn-secondary { background: #333; color: #ccc; }
.btn-danger { background: #dc3545; color: #fff; }
.btn-warning { background: #f0ad4e; color: #000; }
.btn-success { background: #28a745; color: #fff; }

/* Forms */
.form-container {
  background: #161616;
  border: 1px solid #252525;
  border-radius: 10px;
  padding: 1.5rem;
  margin: 1rem 0;
}

.form-container.hidden { display: none; }

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

.form-group label {
  display: block;
  margin-bottom: 0.3rem;
  font-size: 0.85rem;
  color: #999;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.55rem 0.8rem;
  background: #0d0d0d;
  border: 1px solid #333;
  border-radius: 6px;
  color: #e0e0e0;
  font-size: 0.9rem;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #25d366;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
}

.inline-form {
  display: inline;
}

.inline-form input[type="text"] {
  padding: 0.45rem 0.7rem;
  background: #0d0d0d;
  border: 1px solid #333;
  border-radius: 6px;
  color: #e0e0e0;
  font-size: 0.85rem;
  width: 240px;
  margin-right: 0.5rem;
}

/* Checkbox list */
.checkbox-list {
  background: #0d0d0d;
  border: 1px solid #333;
  border-radius: 6px;
  padding: 0.5rem;
  max-height: 250px;
  overflow-y: auto;
}

.checkbox-list.scrollable {
  max-height: 200px;
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.5rem;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.85rem;
}

.checkbox-item:hover {
  background: #1a1a1a;
}

.checkbox-item input[type="checkbox"] {
  accent-color: #25d366;
}

.select-all-label {
  border-bottom: 1px solid #252525;
  margin-bottom: 0.3rem;
  padding-bottom: 0.5rem;
}

/* Days grid */
.days-grid {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.days-grid label {
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  color: #ccc;
}

/* Table */
.table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}

.table th,
.table td {
  padding: 0.7rem 0.8rem;
  text-align: left;
  border-bottom: 1px solid #222;
  font-size: 0.85rem;
}

.table th {
  color: #999;
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
}

.content-preview {
  color: #777;
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-text { background: #1a3a2a; color: #25d366; }
.badge-image { background: #2a2a1a; color: #f0ad4e; }
.badge-video { background: #2a1a2a; color: #e066ff; }
.badge-document { background: #1a2a3a; color: #66b2ff; }
.badge-audio { background: #3a1a1a; color: #ff6666; }
.badge-poll { background: #1a3a3a; color: #66ffff; }
.badge-contact { background: #3a3a1a; color: #ffff66; }
.badge-location { background: #2a1a1a; color: #ff9966; }
.badge-active { background: #1a3a2a; color: #25d366; }
.badge-inactive { background: #3a1a1a; color: #ff6666; }

/* Alerts */
.alert {
  padding: 0.8rem 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.alert.error { background: #2a1111; border: 1px solid #dc3545; color: #ff6666; }
.alert.info { background: #111a2a; border: 1px solid #2a4a6a; color: #66b2ff; }

/* Section */
.section {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid #222;
}

/* Schedule cards */
.schedules-list {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
}

.schedule-card.inactive {
  opacity: 0.5;
}

/* Hidden fields */
.msg-fields.hidden {
  display: none;
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 3rem;
  color: #666;
}

.empty-text {
  color: #555;
  font-size: 0.9rem;
  margin-top: 1rem;
}

/* Top bar */
.top-bar {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.top-bar h1 {
  flex: 1;
  margin-bottom: 0;
}

/* Groups page */
.groups-stats {
  display: flex;
  gap: 2rem;
  background: #161616;
  padding: 0.8rem 1.2rem;
  border-radius: 8px;
  margin-bottom: 1.5rem;
  border: 1px solid #252525;
  font-size: 0.9rem;
}

.groups-list {
  display: grid;
  gap: 0.8rem;
}

.group-card {
  transition: border-color 0.2s;
}

.group-header {
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

.group-title-row {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.group-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.group-avatar-placeholder {
  background: #333;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #666;
  font-size: 1rem;
}

.group-meta {
  font-size: 0.8rem;
  color: #666;
}

.member-count {
  color: #999;
}

.group-tags {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.expand-icon {
  font-size: 0.7rem;
  color: #555;
  transition: transform 0.2s;
  margin-left: 0.3rem;
}

.badge-admin { background: #1a2a3a; color: #4da6ff; }
.badge-admin-sm { background: #1a2a3a; color: #4da6ff; font-size: 0.6rem; padding: 0.1rem 0.3rem; }
.badge-full { background: #3a1a1a; color: #ff4444; animation: pulse-badge 2s infinite; }
.badge-announce { background: #2a2a1a; color: #f0ad4e; }
.badge-restrict { background: #2a1a2a; color: #cc66ff; }

@keyframes pulse-badge {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

.group-body {
  padding: 1rem 1.2rem;
  border-top: 1px solid #252525;
}

.group-body.hidden { display: none; }

.group-info-section {
  margin-bottom: 1rem;
}

.group-desc {
  margin-bottom: 0.5rem;
}

.group-desc p {
  color: #888;
  font-size: 0.85rem;
  white-space: pre-wrap;
  margin-top: 0.3rem;
}

.group-meta-detail {
  font-size: 0.8rem;
  color: #666;
  margin-top: 0.5rem;
}

.group-meta-detail code {
  background: #0d0d0d;
  padding: 0.15rem 0.4rem;
  border-radius: 3px;
  font-size: 0.75rem;
  color: #999;
}

/* Admin actions */
.admin-actions {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid #252525;
}

.admin-actions h4 {
  color: #4da6ff;
  margin-bottom: 0.8rem;
  font-size: 0.9rem;
}

.admin-tabs {
  display: flex;
  gap: 0.3rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 0.4rem 0.8rem;
  background: #222;
  border: 1px solid #333;
  border-radius: 6px;
  color: #999;
  cursor: pointer;
  font-size: 0.8rem;
  transition: all 0.2s;
}

.tab-btn:hover { background: #2a2a2a; color: #ccc; }
.tab-btn.active { background: #1a2a3a; color: #4da6ff; border-color: #4da6ff; }

.tab-content { display: none; }
.tab-content.active { display: block; }

.bulk-input {
  width: 100%;
  margin-top: 0.5rem;
  padding: 0.4rem 0.6rem;
  background: #0d0d0d;
  border: 1px solid #333;
  border-radius: 6px;
  color: #e0e0e0;
  font-size: 0.8rem;
  font-family: inherit;
}

/* Progress bar */
.progress-bar-bg {
  width: 100%;
  height: 8px;
  background: #222;
  border-radius: 4px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: #25d366;
  border-radius: 4px;
  transition: width 0.3s ease;
}

.bulk-log {
  margin-top: 0.8rem;
  max-height: 200px;
  overflow-y: auto;
  font-size: 0.8rem;
  font-family: monospace;
}

.bulk-log-ok { color: #25d366; }
.bulk-log-err { color: #ff4444; }

/* Responsive */
@media (max-width: 768px) {
  .container { padding: 1rem; }
  .form-row { grid-template-columns: 1fr; }
  .inline-form input[type="text"] { width: 100%; margin-bottom: 0.5rem; }
  .groups-stats { flex-direction: column; gap: 0.5rem; }
  .group-header { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
  .admin-tabs { gap: 0.2rem; }
  .tab-btn { font-size: 0.7rem; padding: 0.3rem 0.5rem; }
}