/* Dark theme (default) */
:root {
  --bg: #0b1020;
  --fg: #ffffff;
  --card: #0e1530;
  --border: rgba(255, 255, 255, 0.2);
  --border-light: rgba(255, 255, 255, 0.1);
  --hover: rgba(255, 255, 255, 0.1);
  --shadow: rgba(0, 0, 0, 0.25);
  --input-bg: rgba(255, 255, 255, 0.05);
  --pre-bg: rgba(0, 0, 0, 0.3);
  --table-header: rgba(0, 0, 0, 0.3);
  --primary: #6c9cf2;
  --success: #4CAF50;
  --danger: #f44336;
  --warning: #ff9800;
  --muted: rgba(255, 255, 255, 0.6);
  --sidebar-bg: #0a0f1e;
  /* Login page (dark) */
  --login-bg: #1a1e2b;
  --login-card: #272c3e;
  --login-input-bg: #1e2230;
  --login-fg: #f0f2f5;
  --login-muted: #a0a4b3;
  --login-accent: #4a7aff;
  --login-border: rgba(255, 255, 255, 0.12);
  --login-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
  /* Responsive spacing (overridden in media queries) */
  --space-page: 32px;
  --space-content: 32px;
  --space-card: 20px;
  --space-touch: 44px;
}

/* Light theme */
body.light {
  --bg: #f5f5f5;
  --fg: #111111;
  --card: #ffffff;
  --border: rgba(0, 0, 0, 0.15);
  --border-light: rgba(0, 0, 0, 0.1);
  --hover: rgba(0, 0, 0, 0.05);
  --shadow: rgba(0, 0, 0, 0.1);
  --input-bg: rgba(0, 0, 0, 0.03);
  --pre-bg: rgba(0, 0, 0, 0.05);
  --table-header: rgba(0, 0, 0, 0.05);
  --primary: #1976d2;
  --success: #388e3c;
  --danger: #d32f2f;
  --warning: #f57c00;
  --muted: rgba(0, 0, 0, 0.6);
  --sidebar-bg: #fafafa;
  /* Login page (light) */
  --login-bg: #e8eaef;
  --login-card: #ffffff;
  --login-input-bg: #f5f6f8;
  --login-fg: #1a1d26;
  --login-muted: #6b7280;
  --login-accent: #4a7aff;
  --login-border: rgba(0, 0, 0, 0.12);
  --login-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
}

* {
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  padding: var(--space-page);
  margin: 0;
  transition: background-color 0.3s ease, color 0.3s ease;
  background: var(--bg);
  color: var(--fg);
  min-height: 100vh;
}

.box {
  max-width: 980px;
  margin: 24px auto;
  padding: 24px;
  border-radius: 14px;
  background: var(--card);
  box-shadow: 0 10px 30px var(--shadow);
  border: 1px solid var(--border-light);
}

/* Login Page Styles */
.login-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 80px 40px 32px 40px;
  background: var(--login-bg);
  background-image:
    radial-gradient(circle at 20% 30%, rgba(74, 122, 255, 0.06) 0%, transparent 45%),
    radial-gradient(circle at 80% 70%, rgba(74, 122, 255, 0.04) 0%, transparent 45%);
}

body.light .login-container {
  background-image:
    radial-gradient(circle at 20% 30%, rgba(74, 122, 255, 0.08) 0%, transparent 45%),
    radial-gradient(circle at 80% 70%, rgba(74, 122, 255, 0.05) 0%, transparent 45%);
}

.login-box {
  width: 100%;
  max-width: 420px;
  padding: 44px 40px 32px;
  border-radius: 20px;
  background: var(--login-card);
  box-shadow: var(--login-shadow);
  border: 1px solid var(--login-border);
}

/* Login + panel: responsive padding (tablet) */
@media (max-width: 900px) {
  .login-container {
    padding: 72px 24px 28px 24px;
  }
  .login-box {
    padding: 36px 28px 28px;
  }
}

/* Login + panel: responsive padding (mobile) */
@media (max-width: 600px) {
  .login-container {
    padding: 64px 16px 24px 16px;
  }
  .login-box {
    padding: 28px 20px 24px;
  }
  .login-header {
    margin-bottom: 24px;
  }
  .login-form .form-group {
    margin-bottom: 16px;
  }
  .login-page-footer {
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
    margin-top: 24px;
    padding: 0 8px;
  }
}

@media (max-width: 380px) {
  .login-container {
    padding: 56px 12px 20px 12px;
  }
  .login-box {
    padding: 24px 16px 20px;
  }
}

/* Touch targets on small screens */
@media (max-width: 600px) {
  .password-toggle {
    min-width: 44px;
    min-height: 44px;
  }
  .captcha-group .captcha-refresh {
    min-width: 44px;
    min-height: 44px;
  }
  .login-btn {
    min-height: 48px;
  }
}

.login-header {
  text-align: center;
  margin-bottom: 32px;
}

.login-header-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: rgba(74, 122, 255, 0.12);
  color: var(--login-accent);
  line-height: 0;
}

.login-header-icon i {
  font-size: 1.75rem;
  display: block;
}

body.light .login-header-icon {
  background: rgba(74, 122, 255, 0.1);
}

.login-title {
  font-size: 1.75rem;
  font-weight: 700;
  margin: 0 0 6px 0;
  color: var(--login-fg);
  letter-spacing: -0.02em;
}

.login-subtitle {
  color: var(--login-muted);
  font-size: 14px;
  margin: 0;
  font-weight: 400;
}

.login-form {
  width: 100%;
}

.login-form .form-group {
  margin-bottom: 20px;
}

.login-form label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: var(--login-fg);
  font-size: 14px;
}

.input-with-icon {
  position: relative;
  display: flex;
  align-items: center;
}

.input-with-icon .input-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  color: var(--login-muted);
}

.input-with-icon .input-icon i {
  font-size: 0.9375rem;
  line-height: 1;
  display: block;
}

.input-with-icon input {
  width: 100%;
  padding: 14px 16px 14px 48px;
  border-radius: 12px;
  border: 1px solid var(--login-border);
  background: var(--login-input-bg);
  color: var(--login-fg);
  font-size: 16px;
  transition: border-color 0.2s, box-shadow 0.2s;
  box-sizing: border-box;
}

.input-password-wrap input {
  padding-right: 48px;
}

.input-with-icon input::placeholder {
  color: var(--login-muted);
}

.input-with-icon input:focus {
  outline: none;
  border-color: var(--login-accent);
  box-shadow: 0 0 0 3px rgba(74, 122, 255, 0.2);
}

.password-toggle {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  padding: 0;
  border: none;
  background: transparent;
  color: var(--login-muted);
  cursor: pointer;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s, background 0.2s;
}

.password-toggle:hover {
  color: var(--login-fg);
  background: rgba(74, 122, 255, 0.15);
}

.password-toggle i {
  font-size: 1rem;
  line-height: 1;
  display: block;
}

.login-form .captcha-group input {
  padding: 14px 16px;
}

.captcha-group .captcha-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.captcha-group .captcha-question {
  font-weight: 600;
  color: var(--login-fg);
  font-size: 15px;
}

.captcha-group .captcha-refresh {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid var(--login-border);
  background: var(--login-input-bg);
  color: var(--login-muted);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.captcha-group .captcha-refresh i {
  font-size: 1rem;
  line-height: 1;
  display: block;
}

.captcha-group .captcha-refresh:hover {
  background: var(--login-card);
  border-color: var(--login-accent);
  color: var(--login-fg);
}

.login-btn {
  width: 100%;
  margin-top: 8px;
  padding: 14px 20px;
  border: none;
  border-radius: 12px;
  background: var(--login-accent);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: filter 0.2s, transform 0.15s;
  box-shadow: 0 4px 14px rgba(74, 122, 255, 0.4);
}

.login-btn:hover {
  filter: brightness(1.08);
  transform: translateY(-1px);
}

.login-btn:active {
  transform: translateY(0);
}

.login-btn .btn-arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.login-btn .btn-arrow i {
  font-size: 0.95em;
  line-height: 1;
  display: block;
}

.login-secured {
  text-align: center;
  margin: 20px 0 0 0;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--login-muted);
  text-transform: uppercase;
}

.login-error {
  margin-top: 16px;
  padding: 12px;
  border-radius: 8px;
  background: rgba(244, 67, 54, 0.12);
  color: var(--danger);
  font-size: 14px;
  text-align: center;
  display: none;
}

.login-error:not(:empty) {
  display: block;
}

.login-page-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  margin-top: 28px;
  font-size: 13px;
  color: var(--login-muted);
}

.login-status,
.login-encryption {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.status-dot {
  width: 8px;
  height: 8px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 8px rgba(76, 175, 80, 0.6);
}

.encryption-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.encryption-icon i {
  font-size: 0.875rem;
  line-height: 1;
  display: block;
  color: var(--login-muted);
}

/* Nav and panels: icon spacing */
.sidebar-nav .nav-item span i,
.sidebar-nav .nav-item span .fa-solid {
  margin-right: 10px;
  width: 1.25em;
  text-align: center;
  opacity: 0.9;
}

/* Admin sidebar: section labels */
.sidebar-section-label {
  display: block;
  padding: 12px 16px 6px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--muted);
  text-transform: uppercase;
}

.admin-sidebar .sidebar-header {
  padding-bottom: 16px;
}

.admin-user-badge {
  background: rgba(74, 122, 255, 0.15);
  color: var(--primary);
  font-size: 12px;
  padding: 6px 14px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

body.light .admin-user-badge {
  background: rgba(25, 118, 210, 0.12);
  color: var(--primary);
}

/* User Management page */
.users-page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 24px;
}

.users-page-title-block {
  flex: 1;
  min-width: 0;
}

.users-page-title {
  margin: 0 0 4px 0;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--fg);
}

.users-page-subtitle {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
}

.btn-add-user {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 10px;
  border: none;
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: filter 0.2s, transform 0.15s;
}

.btn-add-user:hover {
  filter: brightness(1.08);
  transform: translateY(-1px);
}

.btn-add-user i {
  font-size: 0.9em;
}

/* Shared admin page layout (all admin pages use this theme) */
.admin-page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 24px;
}

.admin-page-title-block {
  flex: 1;
  min-width: 0;
}

.admin-page-title {
  margin: 0 0 4px 0;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--fg);
}

.admin-page-subtitle {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
}

.btn-primary-action {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 10px;
  border: none;
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: filter 0.2s, transform 0.15s;
}

.btn-primary-action:hover {
  filter: brightness(1.08);
  transform: translateY(-1px);
}

.btn-primary-action i {
  font-size: 0.9em;
}

.admin-section-card {
  background: var(--card);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: 0 1px 3px var(--shadow);
}

.admin-section-card h5 {
  margin: 0 0 16px 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--fg);
}

.admin-section-card #audit-log {
  min-height: 80px;
}

.admin-section-card #audit-log .audit-entry {
  padding: 12px 0;
  border-bottom: 1px solid var(--border-light);
}

.admin-section-card #audit-log .audit-entry:last-child {
  border-bottom: none;
}

.admin-filter-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.admin-filter-row .users-search-wrap {
  margin-bottom: 0;
}

/* Admin tables: reuse same look as users table */
.admin-table-wrap {
  overflow-x: auto;
  border-radius: 12px;
  border: 1px solid var(--border-light);
  background: var(--card);
  box-shadow: 0 1px 3px var(--shadow);
  margin-bottom: 16px;
}

.admin-table-wrap .users-table,
.admin-table-wrap table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.admin-table-wrap th {
  text-align: left;
  padding: 14px 16px;
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--muted);
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
  background: var(--table-header);
}

.admin-table-wrap td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-light);
  color: var(--fg);
  vertical-align: middle;
}

.admin-table-wrap tbody tr:last-child td {
  border-bottom: none;
}

.admin-table-wrap tbody tr:hover {
  background: var(--hover);
}

.summary-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.summary-card {
  background: var(--card);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 1px 3px var(--shadow);
}

.summary-card-value {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 4px;
}

.summary-card-value .status-dot-inline {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  margin-right: 6px;
  vertical-align: middle;
  box-shadow: 0 0 8px rgba(76, 175, 80, 0.5);
}

.summary-card-label {
  font-size: 13px;
  color: var(--muted);
}

.users-search-wrap {
  position: relative;
  margin-bottom: 20px;
  max-width: 320px;
}

.users-search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  font-size: 14px;
  pointer-events: none;
}

.users-search-input {
  width: 100%;
  padding: 12px 16px 12px 42px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--fg);
  font-size: 14px;
  transition: border-color 0.2s;
}

.users-search-input:focus {
  outline: none;
  border-color: var(--primary);
}

.table-wrap {
  overflow-x: auto;
  border-radius: 12px;
  border: 1px solid var(--border-light);
  background: var(--card);
  box-shadow: 0 1px 3px var(--shadow);
  margin-bottom: 16px;
}

.users-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.users-table th {
  text-align: left;
  padding: 14px 16px;
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--muted);
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
  background: var(--table-header);
}

.users-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-light);
  color: var(--fg);
  vertical-align: middle;
}

.users-table tbody tr:last-child td {
  border-bottom: none;
}

.users-table tbody tr:hover {
  background: var(--hover);
}

.users-table td.users-cell-username {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.users-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
}

.users-username {
  font-weight: 500;
  color: var(--fg);
}

.badge-system-admin {
  background: #9C27B0 !important;
  color: #fff !important;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.users-status-check {
  color: var(--success);
  font-size: 1rem;
}

/* Toggle switch */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  flex-shrink: 0;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--border);
  border-radius: 24px;
  transition: 0.25s;
}

.toggle-slider::before {
  content: '';
  position: absolute;
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background: #fff;
  border-radius: 50%;
  transition: 0.25s;
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}

.toggle-switch input:checked + .toggle-slider {
  background: var(--primary);
}

.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(20px);
}

.users-role-admin {
  color: var(--primary);
  font-size: 1rem;
}

.users-role-user {
  color: var(--muted);
  font-size: 1rem;
}

.users-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.users-action-btn {
  width: 36px;
  height: 36px;
  padding: 0;
  border: none;
  border-radius: 8px;
  background: var(--input-bg);
  color: var(--fg);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, color 0.2s;
}

.users-action-btn:hover {
  background: var(--hover);
  color: var(--primary);
}

.users-action-btn.users-action-delete:hover {
  background: rgba(244, 67, 54, 0.15);
  color: var(--danger);
}

.users-actions-dash {
  color: var(--muted);
}

.users-table-empty {
  text-align: center;
  color: var(--muted);
  padding: 32px 16px !important;
}

.users-pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

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

.users-pagination-buttons {
  display: flex;
  gap: 8px;
}

.users-pagination-btn {
  width: 36px;
  height: 36px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  color: var(--fg);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, border-color 0.2s;
}

.users-pagination-btn:hover:not(:disabled) {
  background: var(--hover);
  border-color: var(--primary);
}

.users-pagination-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* When login page is visible: full viewport, theme button matches card */
body:has(#login:not(.hidden)) {
  padding: 0;
}

body:has(#login:not(.hidden)) #theme {
  background: var(--login-card);
  border-color: var(--login-border);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
}

body.light:has(#login:not(.hidden)) #theme {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 16px 0;
  color: var(--fg);
}

h2 {
  font-size: 1.5em;
  text-align: center;
  margin-bottom: 24px;
}

h3 {
  font-size: 1.3em;
}

h4 {
  font-size: 1.1em;
  margin-bottom: 12px;
}

input {
  width: 100%;
  margin: 8px 0;
  padding: 12px 16px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--fg);
  font-size: 16px;
  transition: border-color 0.2s, background-color 0.2s;
}

input:focus {
  outline: none;
  border-color: rgba(100, 150, 255, 0.6);
  background: var(--card);
}

input::placeholder {
  color: var(--fg);
  opacity: 0.5;
}

button {
  padding: 10px 16px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--fg);
  cursor: pointer;
  transition: all 0.2s;
  font-size: 14px;
  font-weight: 500;
}

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

button:active {
  transform: translateY(0);
}

#theme {
  position: fixed;
  top: 16px;
  right: 16px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  z-index: 1000;
  border: 1px solid var(--border);
  background: var(--card);
  box-shadow: 0 4px 12px var(--shadow);
}

/* Reserve space so theme toggle never overlaps content (admin/user panels) */
.panel-container .main-content {
  padding-right: 80px;
}

@media (max-width: 900px) {
  .panel-container .main-content {
    padding-right: 72px;
  }
}

@media (max-width: 600px) {
  .panel-container .main-content {
    padding-right: 64px;
  }
}

#theme:hover {
  transform: scale(1.1);
}

.hidden {
  display: none !important;
}

.row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

pre {
  white-space: pre-wrap;
  word-break: break-word;
  background: var(--pre-bg);
  padding: 12px;
  border-radius: 10px;
  font-family: 'Courier New', monospace;
  font-size: 13px;
  line-height: 1.5;
  border: 1px solid var(--border-light);
  overflow-x: auto;
}

#msg {
  margin-top: 12px;
  color: #ff4444;
  font-size: 14px;
}

.cfg {
  border-top: 1px solid var(--border-light);
  padding-top: 16px;
  margin-top: 16px;
}

.cfg:first-child {
  border-top: none;
  padding-top: 0;
  margin-top: 0;
}

.qr {
  margin-top: 12px;
  padding: 16px;
  border: 2px dashed var(--border);
  border-radius: 10px;
  text-align: center;
  background: var(--input-bg);
}

small {
  opacity: 0.7;
  font-size: 0.9em;
}

.tabs {
  display: flex;
  gap: 8px;
  margin: 20px 0;
  border-bottom: 2px solid var(--border-light);
  padding-bottom: 8px;
}

.tab-btn {
  padding: 10px 20px;
  border: none;
  background: transparent;
  cursor: pointer;
  border-radius: 8px;
  font-weight: 500;
  transition: all 0.2s;
  border-bottom: 2px solid transparent;
  margin-bottom: -10px;
}

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

.tab-btn.active {
  background: var(--hover);
  border-bottom-color: rgba(100, 150, 255, 0.8);
  color: var(--fg);
}

.share-links-filter-btn {
  padding: 8px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--fg);
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.share-links-filter-btn:hover {
  background: var(--hover);
  border-color: var(--primary);
}

.share-links-filter-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.admin-tab {
  margin-top: 20px;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
  background: var(--card);
}

th, td {
  padding: 12px;
  text-align: left;
  border-bottom: 1px solid var(--border-light);
}

th {
  font-weight: 600;
  background: var(--table-header);
  color: var(--fg);
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 0.5px;
}

tr:hover {
  background: var(--hover);
}

td {
  color: var(--fg);
}

.download-item {
  border-top: 1px solid var(--border-light);
  padding-top: 16px;
  margin-top: 16px;
}

.download-item:first-child {
  border-top: none;
  padding-top: 0;
  margin-top: 0;
}

/* Cost tracking styles */
.cost-section {
  margin-bottom: 24px;
  padding: 16px;
  background: var(--card);
  border-radius: 12px;
  border: 1px solid var(--border);
}

.cost-section h5 {
  margin-top: 0;
  margin-bottom: 16px;
  color: var(--fg);
}

.profit-box {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  padding: 16px;
  background: rgba(76, 175, 80, 0.05);
  border-radius: 12px;
  border: 1px solid var(--border);
}

.profit-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.profit-item span {
  font-size: 14px;
  color: var(--muted);
}

.profit-item strong {
  font-size: 24px;
  font-weight: 600;
}

.audit-entry {
  padding: 12px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 8px;
  font-size: 14px;
}

.audit-entry strong {
  color: var(--primary);
  display: inline-block;
  min-width: 180px;
}

/* Messaging System */
.message-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 16px;
  transition: all 0.2s;
}

.message-item:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.unread-message {
  border-left: 4px solid #4CAF50;
  background: rgba(76, 175, 80, 0.05);
}

.message-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  font-size: 14px;
}

.message-subject {
  font-size: 16px;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 8px;
}

.message-body {
  color: var(--fg);
  margin-bottom: 12px;
  padding: 12px;
  background: var(--input-bg);
  border-radius: 8px;
  white-space: pre-wrap;
  word-wrap: break-word;
}

.message-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.message-actions button {
  padding: 6px 12px;
  font-size: 12px;
}

.badge {
  background: #f44336;
  color: white;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: bold;
  margin-left: 6px;
}

.badge.hidden {
  display: none;
}

.badge-has-file {
  background: var(--success, #28a745) !important;
  color: white !important;
  font-size: 10px !important;
  padding: 2px 6px !important;
}

.user-tab {
  display: block;
}

.user-tab.hidden {
  display: none;
}

/* Panel Container with Sidebar */
.panel-container {
  display: flex;
  min-height: 100vh;
  margin: calc(var(--space-page) * -1);
  width: calc(100% + var(--space-page) * 2);
  min-width: 0;
}

.sidebar {
  width: 260px;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  padding: 24px 0;
  display: flex;
  flex-direction: column;
}

.sidebar-header {
  padding: 0 24px 24px 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}

.sidebar-header h3 {
  margin: 0 0 8px 0;
  font-size: 18px;
  color: var(--fg);
}

.user-badge {
  display: inline-block;
  padding: 4px 12px;
  background: var(--primary);
  color: white;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 0 12px;
}

.nav-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  color: var(--muted);
  text-decoration: none;
  border-radius: 10px;
  transition: all 0.2s;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
}

.nav-item:hover {
  background: var(--hover);
  color: var(--fg);
}

.nav-item.active {
  background: var(--primary);
  color: white;
}

.nav-item.logout {
  margin-top: auto;
  color: var(--danger);
}

.nav-item.logout:hover {
  background: rgba(244, 67, 54, 0.1);
}

.main-content {
  flex: 1;
  padding: var(--space-content);
  overflow-y: auto;
  max-height: 100vh;
  min-width: 0;
}

.page-content {
  display: block;
  animation: fadeIn 0.3s ease;
}

.page-content.hidden {
  display: none;
}

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

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.page-header h3 {
  margin: 0;
}

/* Modal System */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  animation: fadeIn 0.2s ease;
  overflow-y: auto;
  padding: 20px;
}

.modal-content {
  background: var(--card);
  border-radius: 16px;
  padding: 32px;
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border);
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

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

.modal-header h3 {
  margin: 0 0 8px 0;
  font-size: 22px;
}

.modal-header p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--fg);
  font-size: 14px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--fg);
  font-size: 14px;
  transition: all 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--card);
}

/* Inputs with icon (e.g. login): text must not go under the icon; override .form-group input padding */
.form-group .input-with-icon input {
  padding-left: 48px;
  padding-right: 16px;
}
.form-group .input-with-icon.input-password-wrap input {
  padding-right: 48px;
}

.form-group textarea {
  min-height: 100px;
  resize: vertical;
  font-family: inherit;
}

.checkbox-group {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px;
  background: var(--input-bg);
  border-radius: 10px;
}

.checkbox-group input[type="checkbox"] {
  width: 20px;
  height: 20px;
  margin: 0;
  cursor: pointer;
}

.checkbox-group label {
  margin: 0;
  cursor: pointer;
  font-weight: 500;
}

.modal-actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}

.modal-actions button {
  flex: 1;
  padding: 14px;
  font-size: 15px;
  font-weight: 600;
}

.btn-primary {
  background: var(--primary) !important;
  color: white !important;
  border-color: var(--primary) !important;
}

.btn-primary:hover {
  opacity: 0.9;
}

.btn-secondary {
  background: var(--muted) !important;
  color: white !important;
  border-color: var(--muted) !important;
}

.btn-danger {
  background: var(--danger) !important;
  color: white !important;
  border-color: var(--danger) !important;
}

/* Panel topbar + hamburger: hidden on desktop, shown only on small screens */
.panel-topbar {
  display: none !important;
}

.sidebar-close {
  display: none !important;
}

.sidebar-backdrop {
  display: none !important;
}

/* Desktop (769px+): force sidebar layout, never show topbar/hamburger */
@media (min-width: 769px) {
  .panel-container {
    flex-direction: row;
  }
  .panel-topbar {
    display: none !important;
  }
  .sidebar-toggle {
    display: none !important;
  }
  .sidebar-close {
    display: none !important;
  }
  .sidebar-backdrop {
    display: none !important;
  }
  .sidebar {
    position: relative;
    transform: none;
    width: 260px;
    flex-shrink: 0;
  }
}

/* Small screens only (≤768px): show topbar + hamburger, sidebar as overlay drawer */
@media (max-width: 768px) {
  :root {
    --space-page: 24px;
    --space-content: 24px;
    --space-card: 16px;
  }

  .panel-container {
    flex-direction: column;
  }

  /* Top bar with hamburger – visible only on small screens */
  .panel-topbar {
    display: flex !important;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
    padding: 12px var(--space-content);
    background: var(--sidebar-bg);
    border-bottom: 1px solid var(--border);
    min-height: 56px;
  }

  .sidebar-toggle {
    display: inline-flex !important;
    width: 44px;
    height: 44px;
    min-width: 44px;
    min-height: 44px;
    padding: 0;
    border: none;
    border-radius: 10px;
    background: var(--input-bg);
    color: var(--fg);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: background 0.2s, color 0.2s;
  }

  .sidebar-toggle:hover {
    background: var(--hover);
    color: var(--primary);
  }

  .panel-topbar-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--fg);
  }

  /* Sidebar as overlay drawer */
  .sidebar-backdrop {
    display: block !important;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
  }

  .panel-container.sidebar-open .sidebar-backdrop {
    opacity: 1;
    pointer-events: auto;
  }

  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: 280px;
    max-width: 85vw;
    z-index: 1001;
    transform: translateX(-100%);
    transition: transform 0.25s ease;
    box-shadow: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border);
    overflow-y: auto;
  }

  .panel-container.sidebar-open .sidebar {
    transform: translateX(0);
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.3);
  }

  .sidebar-header {
    padding: 12px 16px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
  }

  .sidebar-close {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    min-width: 44px;
    min-height: 44px;
    padding: 0;
    border: none;
    border-radius: 10px;
    background: var(--input-bg);
    color: var(--fg);
    cursor: pointer;
    font-size: 1.25rem;
    margin-left: auto;
    transition: background 0.2s, color 0.2s;
  }

  .sidebar-close:hover {
    background: var(--hover);
    color: var(--danger);
  }

  .sidebar-header h3 {
    flex: 1;
    min-width: 0;
    margin: 0;
  }

  .sidebar-nav {
    flex-direction: column;
    overflow-x: visible;
    overflow-y: auto;
    padding: 0 12px 24px;
    gap: 4px;
    -webkit-overflow-scrolling: touch;
  }

  .sidebar-nav .nav-item {
    white-space: normal;
    min-height: 48px;
    padding: 12px 16px;
    flex-shrink: 0;
  }

  .main-content {
    padding: 0;
    padding-right: 0;
  }

  .panel-container .main-content {
    padding-right: 0;
    display: flex;
    flex-direction: column;
  }

  .panel-container .main-content > .page-content {
    padding: var(--space-content);
    padding-top: 16px;
    padding-right: 72px; /* space for theme toggle */
  }

  .admin-page-header,
  .page-header {
    gap: 12px;
    margin-bottom: 20px;
  }

  .admin-section-card {
    padding: var(--space-card);
    margin-bottom: 16px;
  }

  .summary-cards {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 12px;
    margin-bottom: 20px;
  }

  .summary-card {
    padding: 16px;
  }

  .admin-filter-row {
    gap: 10px;
    margin-bottom: 16px;
  }

  .table-wrap,
  .admin-table-wrap {
    margin-left: calc(var(--space-content) * -1);
    margin-right: calc(var(--space-content) * -1);
    border-radius: 0;
    border-left: none;
    border-right: none;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .users-table th,
  .users-table td,
  .admin-table-wrap th,
  .admin-table-wrap td {
    padding: 12px 14px;
  }
}

/* Responsive: Mobile (≤768px) */
@media (max-width: 768px) {
  :root {
    --space-page: 16px;
    --space-content: 16px;
    --space-card: 14px;
  }

  body {
    padding: var(--space-page);
  }

  .box {
    padding: var(--space-card);
    margin: 16px auto;
  }

  .panel-container {
    margin: calc(var(--space-page) * -1);
    width: calc(100% + var(--space-page) * 2);
  }

  .sidebar-header {
    padding: 0 16px 14px;
  }

  .sidebar-nav {
    padding: 0 12px 10px;
  }

  .sidebar-nav .nav-item {
    padding: 12px 14px;
    min-height: 44px;
  }

  .panel-container .main-content {
    padding-right: 0;
  }

  .panel-container .main-content > .page-content {
    padding-right: 64px;
  }

  .admin-page-header {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    margin-bottom: 16px;
  }

  .admin-page-header .btn-primary-action {
    width: 100%;
    justify-content: center;
  }

  .admin-section-card {
    padding: var(--space-card);
  }

  .summary-cards {
    grid-template-columns: 1fr;
    gap: 10px;
    margin-bottom: 16px;
  }

  .summary-card {
    padding: 14px;
  }

  .users-search-wrap {
    max-width: none;
    margin-bottom: 16px;
  }

  .admin-filter-row {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    margin-bottom: 14px;
  }

  .admin-filter-row .users-search-wrap {
    max-width: none;
  }

  .users-pagination {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }

  .users-pagination-buttons {
    justify-content: center;
  }

  .users-table th,
  .users-table td,
  .admin-table-wrap th,
  .admin-table-wrap td {
    padding: 10px 12px;
    font-size: 13px;
  }

  .modal-overlay {
    padding: 12px;
    align-items: flex-start;
    padding-top: max(12px, env(safe-area-inset-top));
  }

  .modal-content {
    padding: 20px;
    max-height: calc(100vh - 24px);
  }

  .modal-header {
    margin-bottom: 20px;
  }

  .modal-actions {
    flex-direction: column;
    margin-top: 20px;
    gap: 10px;
  }

  .modal-actions button {
    width: 100%;
  }

  .config-card,
  .download-card,
  .profile-card {
    padding: var(--space-card);
  }

  .page-header {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    margin-bottom: 16px;
  }

  .row {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }

  table {
    font-size: 14px;
  }

  #theme {
    top: max(12px, env(safe-area-inset-top));
    right: max(12px, env(safe-area-inset-right));
    width: 44px;
    height: 44px;
    font-size: 20px;
  }
}

/* Responsive: Small mobile (≤480px) */
@media (max-width: 480px) {
  :root {
    --space-page: 12px;
    --space-content: 12px;
    --space-card: 12px;
  }

  body {
    padding: var(--space-page);
  }

  .panel-container {
    margin: calc(var(--space-page) * -1);
    width: calc(100% + var(--space-page) * 2);
  }

  .panel-container .main-content {
    padding-right: 0;
  }

  .panel-container .main-content > .page-content {
    padding-right: 56px;
  }

  .sidebar-nav .nav-item {
    padding: 10px 12px;
  }

  .users-table th,
  .users-table td,
  .admin-table-wrap th,
  .admin-table-wrap td {
    padding: 8px 10px;
    font-size: 12px;
  }

  .btn-primary-action,
  .users-action-btn,
  .users-pagination-btn {
    min-height: 44px;
  }

  #theme {
    width: 40px;
    height: 40px;
    font-size: 18px;
  }
}

/* Config Cards */
.config-card {
  background: var(--input-bg);
  padding: 16px;
  border-radius: 10px;
  margin-bottom: 16px;
  border: 1px solid var(--border);
}

.config-card h5 {
  margin: 0 0 12px 0;
  color: var(--primary);
}

.config-card pre {
  background: var(--pre-bg);
  padding: 12px;
  border-radius: 8px;
  overflow-x: auto;
  font-size: 13px;
  margin-top: 12px;
}

/* Download Cards */
.download-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--input-bg);
  padding: 16px;
  border-radius: 10px;
  margin-bottom: 12px;
  border: 1px solid var(--border);
  transition: all 0.2s;
}

.download-card:hover {
  background: var(--hover);
  border-color: var(--primary);
}

.download-card h5 {
  margin: 0 0 8px 0;
}

/* Profile Card */
.profile-card {
  background: var(--input-bg);
  padding: 24px;
  border-radius: 10px;
  border: 1px solid var(--border);
}

/* Profit Grid */
.profit-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.profit-item {
  background: var(--input-bg);
  padding: 16px;
  border-radius: 10px;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.profit-item span {
  color: var(--muted);
  font-size: 14px;
}

.profit-item strong {
  font-size: 20px;
}

/* Audit Entries */
.audit-entry {
  padding: 12px;
  margin-bottom: 8px;
  border-radius: 8px;
  background: var(--input-bg);
  border-left: 3px solid var(--primary);
}

.audit-entry small {
  color: var(--muted);
}

/* Tickets Container - Split View */
.tickets-container {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 24px;
  height: calc(100vh - 200px);
  min-height: 600px;
}

.tickets-list {
  overflow-y: auto;
  padding-right: 12px;
  border-right: 1px solid var(--border);
}

.ticket-preview {
  background: var(--input-bg);
  padding: 16px;
  border-radius: 10px;
  margin-bottom: 12px;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.2s;
}

.ticket-preview:hover {
  background: var(--hover);
  border-color: var(--primary);
  transform: translateX(4px);
}

.ticket-preview.has-unread {
  border-left: 4px solid var(--primary);
  background: rgba(108, 156, 242, 0.08);
}

.ticket-preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.ticket-preview-header h5 {
  margin: 0;
  font-size: 15px;
  color: var(--fg);
}

.ticket-preview-meta {
  display: flex;
  gap: 12px;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 8px;
}

.ticket-preview-last {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--border-light);
}

.ticket-preview-last p {
  margin: 0 0 4px 0;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.4;
}

.ticket-preview-last small {
  font-size: 11px;
  color: var(--muted);
}

/* Ticket Detail View */
.ticket-detail {
  display: flex;
  flex-direction: column;
  background: var(--input-bg);
  border-radius: 10px;
  border: 1px solid var(--border);
  overflow: hidden;
}

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

.ticket-header h4 {
  margin: 0 0 8px 0;
  font-size: 18px;
}

.ticket-participants {
  display: flex;
  gap: 16px;
  font-size: 13px;
  color: var(--muted);
}

.ticket-actions-header {
  display: flex;
  gap: 8px;
}

/* Chat Messages Area */
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.chat-message {
  max-width: 70%;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.chat-message-sent {
  align-self: flex-end;
}

.chat-message-received {
  align-self: flex-start;
}

.chat-message-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--muted);
  padding: 0 8px;
}

.chat-message-body {
  padding: 12px 16px;
  border-radius: 12px;
  line-height: 1.5;
  word-wrap: break-word;
}

.chat-message-sent .chat-message-body {
  background: var(--primary);
  color: white;
  border-bottom-right-radius: 4px;
}

.chat-message-received .chat-message-body {
  background: var(--card);
  border: 1px solid var(--border);
  border-bottom-left-radius: 4px;
}

/* Chat Input */
.chat-input-container {
  padding: 16px;
  border-top: 1px solid var(--border);
  background: var(--card);
}

.chat-input-container textarea {
  width: 100%;
  resize: vertical;
  min-height: 60px;
  margin-bottom: 12px;
}

.chat-input-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

/* Empty State */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  min-height: 300px;
  color: var(--muted);
  text-align: center;
  padding: 40px;
}

.empty-state p {
  margin: 8px 0;
  font-size: 16px;
}

.empty-hint {
  font-size: 14px;
  opacity: 0.7;
}

/* Loading Spinner */
.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3000;
}

.loading-content {
  background: var(--card);
  padding: 32px 48px;
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.loading-spinner-large {
  width: 48px;
  height: 48px;
  border: 4px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.loading-text {
  color: var(--fg);
  font-size: 16px;
  font-weight: 500;
}

/* Upload progress modal */
.upload-progress-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2100;
  animation: fadeIn 0.2s ease;
}
.upload-progress-content {
  background: var(--card);
  padding: 28px 40px;
  border-radius: 16px;
  min-width: 320px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border);
}
.upload-progress-label {
  color: var(--fg);
  font-size: 15px;
  font-weight: 500;
  margin-bottom: 12px;
}
.upload-progress-bar-wrap {
  height: 10px;
  background: var(--input-bg);
  border-radius: 5px;
  overflow: hidden;
  margin-bottom: 8px;
}
.upload-progress-bar {
  height: 100%;
  background: var(--primary);
  border-radius: 5px;
  transition: width 0.2s ease;
}
.upload-progress-percent {
  color: var(--muted);
  font-size: 13px;
  text-align: right;
}

/* Success/Error Messages */
.toast {
  position: fixed;
  top: 24px;
  right: 24px;
  padding: 16px 24px;
  border-radius: 10px;
  box-shadow: 0 10px 30px var(--shadow);
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 2500;
  animation: slideInRight 0.3s ease;
  max-width: 400px;
}

@keyframes slideInRight {
  from {
    transform: translateX(400px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.toast-success {
  background: var(--success);
  color: white;
}

.toast-error {
  background: var(--danger);
  color: white;
}

.toast-info {
  background: var(--primary);
  color: white;
}

.toast-warning {
  background: var(--warning);
  color: white;
}

/* Button Loading State */
button.loading {
  position: relative;
  color: transparent !important;
  pointer-events: none;
}

button.loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  top: 50%;
  left: 50%;
  margin-left: -8px;
  margin-top: -8px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  color: white;
}

/* Smooth Transitions */
.page-content, .modal-content, .ticket-preview, .nav-item {
  transition: all 0.2s ease;
}

button, input, select, textarea {
  transition: all 0.15s ease;
}

/* Hover Effects */
button:not(:disabled):hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px var(--shadow);
}

button:not(:disabled):active {
  transform: translateY(0);
}

.ticket-preview:hover {
  transform: translateX(4px);
}

.download-card:hover, .config-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px var(--shadow);
}

/* Responsive Tickets */
@media (max-width: 968px) {
  .tickets-container {
    grid-template-columns: 1fr;
    height: auto;
    gap: 16px;
    min-height: 400px;
  }

  .tickets-list {
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding-bottom: 16px;
    padding-right: 0;
    max-height: 400px;
  }

  .ticket-detail {
    min-height: 400px;
  }

  .chat-message {
    max-width: 85%;
  }

  .toast {
    right: max(16px, env(safe-area-inset-right));
    left: max(16px, env(safe-area-inset-left));
    max-width: calc(100% - 32px);
    top: max(16px, env(safe-area-inset-top));
  }
}

@media (max-width: 600px) {
  .toast {
    right: max(12px, env(safe-area-inset-right));
    left: max(12px, env(safe-area-inset-left));
    max-width: calc(100% - 24px);
    padding: 12px 16px;
  }
}

/* Config Item Management */
.config-item {
  background: var(--input-bg);
  padding: 12px;
  border-radius: 8px;
  margin-bottom: 12px;
  border: 1px solid var(--border);
}

.config-item label {
  font-weight: 600;
  color: var(--primary);
}

.config-item textarea {
  font-family: 'Courier New', monospace;
  font-size: 13px;
}

#configs-container {
  max-height: 400px;
  overflow-y: auto;
  margin-bottom: 16px;
}

/* Better select styling */
select {
  width: 100%;
  padding: 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--fg);
  font-size: 14px;
  transition: all 0.2s;
  cursor: pointer;
}

select:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--card);
}

select option {
  background: var(--card);
  color: var(--fg);
  padding: 8px;
}

.btn-download {
  padding: 10px 20px;
  border-radius: 10px;
  border: 1px solid rgba(100, 150, 255, 0.5);
  background: rgba(100, 150, 255, 0.15);
  color: var(--fg);
  text-decoration: none;
  display: inline-block;
  transition: all 0.2s;
  font-weight: 500;
}

.btn-download:hover {
  background: rgba(100, 150, 255, 0.25);
  border-color: rgba(100, 150, 255, 0.7);
  transform: translateY(-1px);
}

.audit-entry {
  padding: 12px;
  margin: 8px 0;
  background: var(--pre-bg);
  border-radius: 8px;
  font-size: 0.9em;
  border-left: 3px solid var(--border);
  line-height: 1.6;
}

.audit-entry strong {
  color: var(--fg);
  font-weight: 600;
}

#downloads-section {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border-light);
}

#downloads-section h4 {
  margin-bottom: 16px;
}

p {
  color: var(--fg);
  opacity: 0.7;
  margin: 12px 0;
}

/* Legacy global table cell padding (fine-tuned in breakpoints above) */
@media (max-width: 768px) {
  th, td {
    padding: 10px 12px;
  }
}

/* Loading state */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

/* Success/Error messages */
.success, .success-msg {
  color: #4caf50;
  font-weight: 500;
  margin-top: 12px;
}

.error, .error-msg {
  color: #f44336;
  font-weight: 500;
  margin-top: 12px;
}

.info-msg {
  color: var(--primary);
  font-weight: 500;
  margin-top: 12px;
}

.warning {
  color: #ff9800;
  font-weight: 500;
}