:root {
  --bg-primary: #1e1f22;
  --bg-secondary: #2b2d31;
  --bg-tertiary: #313338;
  --bg-darker: #111214;
  --bg-floating: #232428;
  --border-color: #3f4147;
  --border-subtle: rgba(255, 255, 255, 0.08);

  --text-normal: #dbdee1;
  --text-muted: #949ba4;
  --text-header: #f2f3f5;
  --text-link: #00a8fc;

  --blurple: #5865f2;
  --blurple-hover: #4752c4;
  --green: #23a55a;
  --green-glow: rgba(35, 165, 90, 0.25);
  --yellow: #fee75c;
  --red: #f23f43;
  --red-bg: rgba(242, 63, 67, 0.15);
  --red-border: rgba(242, 63, 67, 0.4);
  --purple: #eb459e;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.25);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.45);
}

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

body {
  font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-darker);
  color: var(--text-normal);
  line-height: 1.5;
  height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* Scrollbars */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: #1a1b1e;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #2e3035;
}

/* Top Navigation Bar */
.topbar {
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-subtle);
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  z-index: 20;
}

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

.brand-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--blurple), #7289da);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 20px;
  box-shadow: 0 4px 12px rgba(88, 101, 242, 0.35);
}

.brand-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-header);
  letter-spacing: -0.3px;
}

.brand-subtitle {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Stats Badges in Header */
.header-stats {
  display: flex;
  align-items: center;
  gap: 12px;
}

.stat-pill {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.stat-pill .val {
  font-weight: 700;
  color: var(--text-header);
}

.stat-pill.danger {
  border-color: var(--red-border);
  background: var(--red-bg);
}

.stat-pill.danger .val {
  color: #ff7b72;
}

/* Live Gateway Indicator */
.gateway-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-secondary);
  padding: 6px 14px;
  border-radius: 20px;
  border: 1px solid var(--border-subtle);
  font-size: 12px;
  font-weight: 600;
}

.pulse-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background-color: var(--green);
  box-shadow: 0 0 10px var(--green);
  animation: pulse 2s infinite;
}

.pulse-dot.disconnected {
  background-color: var(--red);
  box-shadow: 0 0 10px var(--red);
  animation: none;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(35, 165, 90, 0.7); }
  70% { transform: scale(1.1); box-shadow: 0 0 0 8px rgba(35, 165, 90, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(35, 165, 90, 0); }
}

/* Action Buttons */
.btn {
  background: var(--bg-tertiary);
  color: var(--text-header);
  border: 1px solid var(--border-subtle);
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s ease;
}

.btn:hover {
  background: #393c41;
  color: #ffffff;
  border-color: #4e5058;
}

.btn-primary {
  background: var(--blurple);
  border-color: transparent;
  color: white;
}

.btn-primary:hover {
  background: var(--blurple-hover);
}

.btn-danger {
  background: var(--red);
  color: white;
  border-color: transparent;
}

.btn-sm {
  padding: 4px 8px;
  font-size: 11px;
}

/* Main Layout */
.app-container {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* Sidebar Channels */
.sidebar {
  width: 270px;
  background: var(--bg-primary);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
}

.sidebar-section-title {
  padding: 14px 16px 8px;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.channel-list {
  flex: 1;
  overflow-y: auto;
  padding: 6px 8px;
}

.channel-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 12px;
  margin-bottom: 3px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

.channel-item:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-normal);
}

.channel-item.active {
  background: rgba(88, 101, 242, 0.18);
  color: #ffffff;
  font-weight: 600;
  border-left: 3px solid var(--blurple);
}

.chan-left {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow: hidden;
}

.chan-hash {
  font-size: 16px;
  color: var(--text-muted);
  font-weight: 700;
}

.chan-name {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 14px;
}

.expiry-tag {
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: 700;
  letter-spacing: 0.2px;
  white-space: nowrap;
}

.expiry-60s {
  background: #f23f43;
  color: #fff;
  box-shadow: 0 0 8px rgba(242, 63, 67, 0.4);
}

.expiry-24h {
  background: #f0b232;
  color: #111;
  font-weight: 800;
}

.expiry-permanent {
  background: #3f4147;
  color: #b5bac1;
}

.chan-count {
  font-size: 11px;
  background: var(--bg-tertiary);
  padding: 2px 6px;
  border-radius: 10px;
  color: var(--text-muted);
}

/* Content Area */
.content-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--bg-tertiary);
  overflow: hidden;
}

/* Filter Controls Toolbar */
.filter-toolbar {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-subtle);
  padding: 12px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.filter-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.search-box {
  flex: 1;
  min-width: 240px;
  position: relative;
}

.search-box input {
  width: 100%;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  padding: 8px 12px 8px 34px;
  border-radius: var(--radius-sm);
  color: var(--text-header);
  font-size: 13px;
  outline: none;
}

.search-box input:focus {
  border-color: var(--blurple);
}

.search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 14px;
}

/* Date Range Controls */
.date-presets {
  display: flex;
  gap: 6px;
}

.preset-btn {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.preset-btn:hover {
  background: #35373c;
  color: var(--text-header);
}

.preset-btn.active {
  background: var(--blurple);
  color: white;
  border-color: transparent;
}

.date-input-group {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 12px;
}

.date-input-group input[type="date"] {
  background: transparent;
  border: none;
  color: var(--text-header);
  font-size: 12px;
  outline: none;
}

.toggle-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-normal);
  cursor: pointer;
  user-select: none;
}

/* Messages Feed */
.messages-container {
  flex: 1;
  overflow-y: auto;
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-muted);
  text-align: center;
  gap: 12px;
}

.empty-state-icon {
  font-size: 48px;
  opacity: 0.5;
}

/* Message Card (Discord Aesthetic) */
.message-card {
  display: flex;
  gap: 14px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: rgba(43, 45, 49, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.03);
  transition: background 0.15s ease, border-color 0.15s ease;
  position: relative;
  background: var(--bg-primary) !important;
  border: 1px solid var(--border-subtle) !important;
  border-left: 1px solid var(--border-subtle) !important;
}

.message-card:hover,
.message-card.is-deleted,
.message-card.is-deleted:hover {
  background: var(--bg-secondary) !important;
  border-color: var(--border-subtle) !important;
  border-left: 1px solid var(--border-subtle) !important;
}

.message-card.is-new-flash {
  animation: flash-border 1.5s ease-out;
}

@keyframes flash-border {
  0% { box-shadow: 0 0 16px rgba(88, 101, 242, 0.8); border-color: var(--blurple); }
  100% { box-shadow: none; border-color: var(--border-subtle); }
}

.author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--blurple);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 15px;
  flex-shrink: 0;
  overflow: hidden;
}

.author-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.message-body {
  flex: 1;
  min-width: 0;
}

.message-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
  flex-wrap: wrap;
}

.author-name {
  font-size: 14px;
  font-weight: 600;
  color: #ffffff;
}

.author-handle {
  font-size: 12px;
  color: var(--text-muted);
}

.message-timestamp {
  font-size: 11px;
  color: var(--text-muted);
}

.channel-pill {
  font-size: 10px;
  background: var(--bg-primary);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--text-muted);
  font-family: monospace;
}

.status-badge {
  font-size: 10px;
  padding: 2px 7px;
  border-radius: 4px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.status-badge.deleted {
  background: var(--red-bg);
  color: #ff7b72;
  border: 1px solid var(--red-border);
}

.status-badge.active {
  background: var(--green-glow);
  color: #7ee787;
  border: 1px solid rgba(35, 165, 90, 0.4);
}

/* Reply Reference */
.reply-reference {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 4px;
  padding-left: 12px;
  border-left: 2px solid #4e5058;
}

.reply-reference strong {
  color: #c9cdfb;
}

/* Message Content Text */
.message-content {
  font-size: 14px;
  color: var(--text-normal);
  word-break: break-word;
  white-space: pre-wrap;
  margin-bottom: 8px;
}

/* Attachments */
.attachment-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 6px;
}

.att-image {
  max-width: 480px;
  max-height: 340px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 1px solid rgba(255,255,255,0.06);
  transition: transform 0.15s ease;
}

.att-image:hover {
  transform: scale(1.01);
}

.att-file-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-link);
  text-decoration: none;
  font-size: 13px;
  width: fit-content;
}

.att-file-pill:hover {
  background: #27282c;
  text-decoration: underline;
}

/* Embeds */
.embed-card {
  border-left: 4px solid var(--blurple);
  background: var(--bg-secondary);
  padding: 10px 14px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-top: 6px;
  max-width: 520px;
}

.embed-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-header);
  margin-bottom: 4px;
}

.embed-desc {
  font-size: 12px;
  color: var(--text-muted);
}

/* Pagination Bar */
.pagination-bar {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-muted);
}

/* Modal Windows */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  width: 90%;
  max-width: 580px;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  max-height: 85vh;
}

.modal-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-header);
}

.modal-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 20px;
  cursor: pointer;
}

.modal-close:hover {
  color: white;
}

.modal-body {
  padding: 20px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

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

.form-group input, .form-group select {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-header);
  font-size: 13px;
  outline: none;
}

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

.help-text {
  font-size: 11px;
  color: var(--text-muted);
}

.modal-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}

/* Delete button on individual message cards */
.msg-actions {
  position: absolute;
  top: 8px;
  right: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.message-card:hover .msg-actions,
.message-card.selected .msg-actions {
  opacity: 1;
}

.msg-delete-btn {
  background: rgba(35, 36, 40, 0.85);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  width: 28px;
  height: 28px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 13px;
  transition: all 0.15s ease;
}

.msg-delete-btn:hover {
  background: var(--red);
  color: white;
  border-color: transparent;
  transform: scale(1.08);
}

.msg-checkbox {
  width: 16px;
  height: 16px;
  cursor: pointer;
  accent-color: var(--blurple);
}

.message-card.selected {
  border-color: var(--blurple);
  background: rgba(88, 101, 242, 0.12);
}

/* Floating Bulk Selection Actions Bar */
.bulk-toolbar {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 28px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.6);
  padding: 8px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  z-index: 90;
  animation: slideUp 0.2s ease-out;
}

@keyframes slideUp {
  from { transform: translate(-50%, 30px); opacity: 0; }
  to { transform: translate(-50%, 0); opacity: 1; }
}

.bulk-count {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-header);
}

/* Wipe Modal Options */
.wipe-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.wipe-card:hover {
  border-color: var(--red);
  background: rgba(242, 63, 67, 0.05);
}

.wipe-card.active {
  border-color: var(--red);
  background: rgba(242, 63, 67, 0.08);
}

.wipe-title {
  font-size: 14px;
  font-weight: 700;
  color: #ff7b72;
  display: flex;
  align-items: center;
  gap: 6px;
}

.wipe-desc {
  font-size: 12px;
  color: var(--text-muted);
}

/* Fullscreen Login Screen Overlay */
.login-overlay {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at 50% 30%, #1e2029 0%, #0d0e11 100%);
  backdrop-filter: blur(12px);
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.login-card {
  width: 100%;
  max-width: 480px;
  background: #232428;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  padding: 36px 32px;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.6);
  display: flex;
  flex-direction: column;
  gap: 20px;
  animation: fadeInModal 0.25s ease-out;
}

@keyframes fadeInModal {
  from { opacity: 0; transform: scale(0.96); }
  to { opacity: 1; transform: scale(1); }
}

.login-header {
  text-align: center;
}

.login-icon {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, var(--blurple), #7289da);
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  color: white;
  margin-bottom: 12px;
  box-shadow: 0 6px 18px rgba(88, 101, 242, 0.4);
}

.login-title {
  font-size: 20px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 4px;
}

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

/* Selectable Role Buttons (Cards) */
.role-buttons-container {
  display: flex;
  gap: 12px;
}

.role-select-btn {
  flex: 1;
  background: #1a1b1e;
  border: 2px solid #35373c;
  border-radius: 12px;
  padding: 16px 12px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  text-align: center;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  user-select: none;
  position: relative;
}

.role-select-btn:hover {
  border-color: #5865f2;
  background: #24262b;
  transform: translateY(-2px);
}

.role-select-btn.active {
  border-color: var(--blurple);
  background: rgba(88, 101, 242, 0.16);
  box-shadow: 0 0 20px rgba(88, 101, 242, 0.35);
}

.role-btn-icon {
  font-size: 26px;
  margin-bottom: 2px;
}

.role-btn-title {
  font-size: 15px;
  font-weight: 700;
  color: #ffffff;
}

.role-btn-desc {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.3;
}

.role-btn-check {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--blurple);
  color: white;
  font-size: 11px;
  display: none;
  align-items: center;
  justify-content: center;
}

.role-select-btn.active .role-btn-check {
  display: flex;
}

.preset-hint-pill {
  font-size: 11px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 3px 8px;
  border-radius: 12px;
  color: #949ba4;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: all 0.15s ease;
}

.preset-hint-pill:hover {
  background: rgba(88, 101, 242, 0.2);
  color: #c9cdfb;
  border-color: var(--blurple);
}

/* Role Badges in Header */
.role-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  border: 1px solid transparent;
}

.role-badge.admin {
  background: rgba(88, 101, 242, 0.18);
  border-color: rgba(88, 101, 242, 0.45);
  color: #c9cdfb;
}

.role-badge.user {
  background: rgba(35, 165, 90, 0.18);
  border-color: rgba(35, 165, 90, 0.45);
  color: #7ee787;
}

/* Hide admin controls when role is user */
body.role-user .admin-only {
  display: none !important;
}

/* Login Audit Status Badges */
.auth-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.auth-badge.success {
  background: rgba(35, 165, 90, 0.15);
  border: 1px solid rgba(35, 165, 90, 0.4);
  color: #7ee787;
}

.auth-badge.failed {
  background: rgba(242, 63, 67, 0.15);
  border: 1px solid rgba(242, 63, 67, 0.4);
  color: #ff7b72;
}

.login-row {
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: background 0.15s ease;
}

.login-row:hover {
  background: rgba(255, 255, 255, 0.03);
}

/* ========================================================
   MESSAGE CARD ACTIONS & INTERACTIVE CONTROLS
   ======================================================== */
.msg-actions {
  position: absolute;
  top: 10px;
  right: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  z-index: 2;
}

.msg-checkbox {
  width: 16px;
  height: 16px;
  cursor: pointer;
  accent-color: var(--blurple);
}

.msg-delete-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  padding: 4px 7px;
  font-size: 13px;
  cursor: pointer;
  opacity: 0.6;
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.msg-delete-btn:hover {
  background: rgba(242, 63, 67, 0.2);
  border-color: rgba(242, 63, 67, 0.4);
  opacity: 1;
  transform: scale(1.05);
}

/* ========================================================
   RESPONSIVE DESIGN (MOBILE & LAPTOP OPTIMIZATIONS)
   ======================================================== */

/* Mobile Nav Toggle & Backdrop Elements */
.mobile-nav-toggle {
  display: none;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  width: 38px;
  height: 38px;
  align-items: center;
  justify-content: center;
  color: var(--text-header);
  font-size: 18px;
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.15s ease;
}

.mobile-nav-toggle:active {
  transform: scale(0.95);
  background: #35373c;
}

.mobile-close-sidebar {
  display: none;
  background: rgba(255, 255, 255, 0.08);
  border: none;
  color: var(--text-muted);
  width: 28px;
  height: 28px;
  border-radius: 6px;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  cursor: pointer;
}

.mobile-close-sidebar:hover {
  color: white;
  background: rgba(255, 255, 255, 0.15);
}

.sidebar-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 55;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.sidebar-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

/* Laptop & Tablet Landscape (<= 1100px) */
@media (max-width: 1100px) {
  .topbar {
    padding: 10px 14px;
    gap: 10px;
    flex-wrap: wrap;
  }

  .header-stats {
    gap: 6px;
  }

  .stat-pill {
    padding: 4px 8px;
    font-size: 11px;
  }

  .sidebar {
    width: 240px;
  }
}

/* Tablet Portrait & Mobile (<= 768px) */
@media (max-width: 768px) {
  /* Topbar Mobile Layout */
  .mobile-nav-toggle {
    display: inline-flex;
  }

  .topbar {
    padding: 8px 12px;
    gap: 8px;
    position: sticky;
    top: 0;
  }

  .brand-title {
    font-size: 15px;
  }

  .brand-subtitle {
    display: none;
  }

  .gateway-badge {
    padding: 4px 10px;
    font-size: 11px;
    gap: 6px;
  }

  #gateway-text {
    display: none;
  }

  .header-stats {
    order: 3;
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 2px;
    display: flex;
    gap: 6px;
  }

  .header-stats::-webkit-scrollbar {
    display: none;
  }

  .stat-pill {
    flex-shrink: 0;
    padding: 4px 8px;
    font-size: 11px;
  }

  .header-actions {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .header-actions .btn {
    padding: 6px 9px;
    font-size: 12px;
    border-radius: 6px;
  }

  /* Off-Canvas Slide-In Sidebar Drawer */
  .sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    width: 280px;
    max-width: 82vw;
    height: 100vh;
    height: 100dvh;
    z-index: 60;
    box-shadow: 4px 0 28px rgba(0, 0, 0, 0.7);
    transform: translateX(-100%);
    transition: transform 0.26s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .sidebar.mobile-open {
    transform: translateX(0);
  }

  .mobile-close-sidebar {
    display: inline-flex;
  }

  /* Filter Toolbar Mobile */
  .filter-toolbar {
    padding: 10px 12px;
  }

  .filter-row {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .search-box {
    width: 100%;
  }

  .search-box input {
    font-size: 16px; /* Prevents auto-zoom on mobile safari */
    padding: 10px 12px 10px 36px;
  }

  .date-presets {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    flex-wrap: nowrap;
    padding-bottom: 4px;
    gap: 6px;
  }

  .date-presets::-webkit-scrollbar {
    display: none;
  }

  .preset-btn {
    flex-shrink: 0;
    padding: 6px 12px;
    font-size: 12px;
  }

  .date-input-group {
    flex-wrap: wrap;
    gap: 6px;
    width: 100%;
  }

  .date-input-group input[type="date"] {
    flex: 1;
    min-width: 120px;
    padding: 6px 8px;
  }

  /* Message Feed Mobile */
  .messages-container {
    padding: 10px 12px;
  }

  .message-card {
    padding: 10px 12px;
    margin-bottom: 8px;
    gap: 10px;
  }

  .author-avatar {
    width: 34px;
    height: 34px;
    font-size: 13px;
  }

  .author-name {
    font-size: 13.5px;
  }

  .message-header {
    gap: 6px;
    font-size: 12px;
  }

  .message-content {
    font-size: 13.5px;
    line-height: 1.45;
  }

  .msg-actions {
    top: 8px;
    right: 8px;
  }

  .msg-delete-btn {
    opacity: 0.85;
    padding: 5px 8px;
  }

  /* Attachments scaling */
  .att-image {
    max-width: 100%;
    height: auto;
    max-height: 280px;
    object-fit: contain;
  }

  video, audio {
    max-width: 100% !important;
  }

  .att-file-pill {
    max-width: 100%;
    word-break: break-all;
  }

  /* Modal Bottom-Sheet on Mobile */
  .modal-overlay {
    align-items: flex-end;
    padding: 0;
  }

  .modal-content {
    width: 100%;
    max-width: 100%;
    border-radius: 18px 18px 0 0;
    max-height: 88vh;
    max-height: 88dvh;
    animation: slideUp 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  }

  @keyframes slideUp {
    from { transform: translateY(100%); }
    to { transform: translateY(0); }
  }

  .modal-header {
    padding: 14px 16px;
  }

  .modal-body {
    padding: 14px 16px;
  }

  /* Login Role Buttons Tap Target */
  .role-buttons-container {
    gap: 10px;
  }

  .role-select-btn {
    padding: 12px 10px;
    min-height: 48px;
  }

  /* Audit Table Horizontal Scroll on Mobile */
  .login-history-table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    width: 100%;
  }

  /* Pagination Bar Mobile */
  .pagination-bar {
    padding: 8px 12px;
    padding-bottom: calc(8px + env(safe-area-inset-bottom, 0px));
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  .pagination-bar .btn {
    padding: 8px 14px;
    min-height: 40px;
  }
}

/* Smartphone Portrait (<= 480px) */
@media (max-width: 480px) {
  .brand-title {
    font-size: 14px;
  }

  .brand-icon {
    width: 32px;
    height: 32px;
    font-size: 16px;
  }

  .role-buttons-container {
    flex-direction: column;
    gap: 8px;
  }

  .role-select-btn {
    flex-direction: row;
    text-align: left;
    padding: 12px 14px;
    gap: 12px;
  }

  .role-btn-icon {
    margin-bottom: 0;
    font-size: 24px;
  }

  .header-actions {
    width: 100%;
    justify-content: flex-start;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 2px;
  }

  .header-actions::-webkit-scrollbar {
    display: none;
  }

  .header-actions .btn {
    flex-shrink: 0;
  }
}