/* ============================================================
   main.css — Layout, typography, nav, global
   ============================================================ */

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

:root {
  --ui-scale: 1.16;
  --color-primary: #2563EB;
  --color-primary-dark: #1D4ED8;
  --color-primary-light: #DBEAFE;
  --color-success: #16A34A;
  --color-success-light: #DCFCE7;
  --color-warning: #D97706;
  --color-warning-light: #FEF3C7;
  --color-danger: #DC2626;
  --color-danger-light: #FEE2E2;
  --color-gray-50: #F9FAFB;
  --color-gray-100: #F3F4F6;
  --color-gray-200: #E5E7EB;
  --color-gray-300: #D1D5DB;
  --color-gray-400: #9CA3AF;
  --color-gray-500: #6B7280;
  --color-gray-600: #4B5563;
  --color-gray-700: #374151;
  --color-gray-800: #1F2937;
  --color-gray-900: #111827;
  --color-sidebar-bg: #1E293B;
  --color-sidebar-hover: #334155;
  --color-sidebar-active: #2563EB;
  --color-sidebar-text: #CBD5E1;
  --color-sidebar-text-active: #FFFFFF;
  --sidebar-width: calc(240px * var(--ui-scale));
  --topbar-height: calc(56px * var(--ui-scale));
  --radius-sm: 5px;
  --radius-md: 7px;
  --radius-lg: 9px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
  --transition: 150ms ease;
}

html, body {
  margin: 0; padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: calc(14px * var(--ui-scale));
  line-height: 1.5;
  color: var(--color-gray-800);
  background: var(--color-gray-50);
  height: 100%;
  overflow-x: clip;
}

html {
  -webkit-text-size-adjust: 100%;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

h1 { font-size: 1.5rem; font-weight: 700; margin: 0 0 1rem; }
h2 { font-size: 1.25rem; font-weight: 600; margin: 0 0 .75rem; }
h3 { font-size: 1rem; font-weight: 600; margin: 0 0 .5rem; }

p { margin: 0 0 .75rem; }

/* ---- App Shell ---- */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* ---- Sidebar ---- */
.sidebar {
  width: var(--sidebar-width);
  background: var(--color-sidebar-bg);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  overflow-y: auto;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 20px 22px;
  border-bottom: 1px solid rgba(255,255,255,.07);
  text-decoration: none;
}

.sidebar-brand-icon {
  width: 36px; height: 36px;
  background: var(--color-primary);
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  flex-shrink: 0;
}

.sidebar-brand-name {
  color: #fff;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -.2px;
}

.sidebar-nav { flex: 1; padding: 12px 0; }

.nav-section-label {
  font-size: 11.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--color-gray-500);
  padding: 12px 20px 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 10px 22px;
  color: var(--color-sidebar-text);
  text-decoration: none;
  border-radius: 0;
  transition: background var(--transition), color var(--transition);
  cursor: pointer;
  font-size: 15.5px;
  position: relative;
}
.nav-item:hover {
  background: var(--color-sidebar-hover);
  color: #fff;
  text-decoration: none;
}
.nav-item.active {
  background: rgba(37,99,235,.2);
  color: var(--color-sidebar-text-active);
  font-weight: 500;
}
.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--color-primary);
  border-radius: 0 2px 2px 0;
}
.nav-item-icon {
  width: 20px;
  text-align: center;
  opacity: .8;
  flex-shrink: 0;
}
.nav-badge {
  margin-left: auto;
  background: var(--color-danger);
  color: #fff;
  font-size: 11.5px;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: 10px;
  min-width: 18px;
  text-align: center;
  display: none;
}
.nav-badge.visible { display: inline-block; }

.sidebar-footer {
  border-top: 1px solid rgba(255,255,255,.07);
  padding: 12px 0;
}

/* ---- Main Content Area ---- */
.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-width: 0;
  width: 100%;
}

/* ---- Top Bar ---- */
.topbar {
  height: var(--topbar-height);
  background: #fff;
  border-bottom: 1px solid var(--color-gray-200);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 50;
}

.topbar-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-gray-900);
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.mobile-menu-toggle {
  display: none;
  flex-shrink: 0;
}

.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  z-index: 99;
  border: none;
  padding: 0;
  cursor: pointer;
}

.sidebar-backdrop.visible {
  display: block;
}

body.sidebar-open {
  overflow: hidden;
}

.user-menu {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--radius-md);
  transition: background var(--transition);
}
.user-menu:hover { background: var(--color-gray-100); }
.user-menu-avatar {
  width: 34px; height: 34px;
  background: var(--color-primary);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  font-size: 13.5px;
  font-weight: 600;
}
.user-menu-info { line-height: 1.2; }
.user-menu-name { font-size: 15px; font-weight: 500; color: var(--color-gray-800); }
.user-menu-role { font-size: 12.5px; color: var(--color-gray-500); }
.user-menu-dropdown {
  position: relative;
}
.user-dropdown-menu {
  position: absolute;
  right: 0; top: calc(100% + 4px);
  background: #fff;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  min-width: 160px;
  z-index: 200;
  display: none;
}
.user-dropdown-menu.open { display: block; }
.user-dropdown-menu a,
.user-dropdown-menu button {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 14px;
  color: var(--color-gray-700);
  font-size: 15px;
  text-decoration: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 100%;
  text-align: left;
}
.user-dropdown-menu a:hover,
.user-dropdown-menu button:hover { background: var(--color-gray-50); }
.user-dropdown-menu hr { margin: 4px 0; border: none; border-top: 1px solid var(--color-gray-200); }

/* ---- Page Body ---- */
.page-body { padding: 27px; flex: 1; }

/* ---- Alert Banner (global) ---- */
.alert-banner {
  padding: 10px 24px;
  font-size: 15px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.alert-banner.warning { background: var(--color-warning-light); color: #92400E; border-bottom: 1px solid #FCD34D; }
.alert-banner.danger { background: var(--color-danger-light); color: #991B1B; border-bottom: 1px solid #FCA5A5; }
.alert-banner.info { background: var(--color-primary-light); color: #1E40AF; border-bottom: 1px solid #BFDBFE; }
#gateway-alert { display: none; }

/* ---- Page Header ---- */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  gap: 16px;
}
.page-header-left { display: flex; flex-direction: column; gap: 2px; }
.page-header-title { font-size: 23px; font-weight: 700; color: var(--color-gray-900); margin: 0; }
.page-header-sub { font-size: 15px; color: var(--color-gray-500); }
.page-header-actions { display: flex; align-items: center; gap: 8px; }

/* ---- Dashboard Cards ---- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.dashboard-stats {
  grid-template-columns: repeat(5, 1fr);
}
@media (max-width: 1200px) {
  .dashboard-stats { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 767px) {
  .dashboard-stats { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 479px) {
  .dashboard-stats { grid-template-columns: 1fr; }
}

.stat-card {
  background: #fff;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: box-shadow var(--transition);
}
.stat-card:hover { box-shadow: var(--shadow-md); }

.stat-card-icon {
  font-size: 26px;
  line-height: 1;
  margin-bottom: 2px;
}
.stat-card-label {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--color-gray-500);
}
.stat-card-value {
  font-size: 34px;
  font-weight: 700;
  color: var(--color-gray-900);
  line-height: 1;
}
.stat-card-sub { font-size: 13.5px; color: var(--color-gray-500); }

/* Stat card color variants */
.stat-card-blue  { border-top: 3px solid var(--color-primary); }
.stat-card-blue .stat-card-value { color: var(--color-primary); }
.stat-card-green { border-top: 3px solid var(--color-success); }
.stat-card-green .stat-card-value { color: var(--color-success); }
.stat-card-orange { border-top: 3px solid var(--color-warning); }
.stat-card-orange .stat-card-value { color: var(--color-warning); }
.stat-card-purple { border-top: 3px solid #7C3AED; }
.stat-card-purple .stat-card-value { color: #7C3AED; }
.stat-card-teal { border-top: 3px solid #0891B2; }
.stat-card-teal .stat-card-value { color: #0891B2; }

/* ---- Quick Actions ---- */
.quick-actions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 12px;
}
.quick-action-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: inherit;
  background: var(--color-gray-50);
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.quick-action-card:hover {
  background: #fff;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
}
.quick-action-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-lg);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}
.quick-action-title { font-size: 15.5px; font-weight: 600; color: var(--color-gray-900); }
.quick-action-sub { font-size: 13px; color: var(--color-gray-500); margin-top: 2px; }

/* ---- Grid layout ---- */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

/* ---- Card ---- */
.card {
  background: #fff;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.card-header {
  padding: 16px 22px;
  border-bottom: 1px solid var(--color-gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.card-title { font-size: 16px; font-weight: 600; margin: 0; }
.card-body { padding: 22px; }
.card-footer {
  padding: 12px 20px;
  border-top: 1px solid var(--color-gray-200);
  background: var(--color-gray-50);
}

/* ---- Split View (Conversations) ---- */
.split-layout {
  display: flex;
  height: calc(100vh - var(--topbar-height) - 48px);
  gap: 0;
  background: #fff;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.split-left {
  width: calc(340px * var(--ui-scale));
  flex-shrink: 0;
  border-right: 1px solid var(--color-gray-200);
  display: flex;
  flex-direction: column;
}
.split-right { flex: 1; display: flex; flex-direction: column; }

/* ---- Responsive ---- */
@media (max-width: 1023px) {
  .mobile-menu-toggle { display: inline-flex; }
  .sidebar { transform: translateX(-100%); transition: transform .2s ease; width: min(var(--sidebar-width), calc(100vw - 48px)); }
  .sidebar.open { transform: translateX(0); box-shadow: var(--shadow-lg); }
  .main-content { margin-left: 0; }
  .grid-2 { grid-template-columns: 1fr; }
  .topbar { padding: 0 16px; gap: 12px; }
  .page-body { padding: 16px; }
}

@media (max-width: 767px) {
  :root { --ui-scale: 1; }
  .grid-3 { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .split-layout { flex-direction: column; height: auto; min-height: 420px; }
  .split-left {
    width: 100%;
    height: auto;
    max-height: 45vh;
    border-right: none;
    border-bottom: 1px solid var(--color-gray-200);
  }
  .ai-settings-grid { grid-template-columns: 1fr; }
  .ai-test-panel { position: static; }
}

@media (max-width: 479px) {
  :root { --ui-scale: 1; }

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

  .stat-card { padding: 14px 16px; }
  .stat-card-value { font-size: 28px; }

  .page-body { padding: 12px; }
  .topbar { padding: 0 10px; gap: 8px; }
  .topbar-title { font-size: 15px; white-space: normal; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
  .topbar-actions { gap: 6px; flex-shrink: 0; }
  .topbar-actions .btn { padding-left: 10px; padding-right: 10px; }

  .page-header { flex-direction: column; align-items: stretch; }
  .page-header-actions { flex-wrap: wrap; }

  .card-header,
  .card-body,
  .card-footer { padding-left: 14px; padding-right: 14px; }
  .card-header { flex-wrap: wrap; gap: 8px; }

  .grid-3 { grid-template-columns: 1fr; }
  .quick-actions-grid { grid-template-columns: 1fr; }

  .wizard-steps { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .wizard-step { padding: 10px 12px; font-size: 14px; }

  .login-card { padding: 24px 16px; margin: 12px; max-width: none; }
  .dropzone { padding: 24px 12px; }

  .alert-banner { padding: 8px 12px; font-size: 13.5px; }

  .msg-bubble { max-width: 90%; font-size: 15px; }
  .msg-media img { max-width: 100%; max-height: 200px; height: auto; }

  .chat-page-card {
    height: calc(100dvh - var(--topbar-height) - 16px);
    min-height: 280px;
  }
  .chat-compose { padding: 8px 10px 10px; }
  .chat-input-bar { gap: 6px; }
  .chat-ai-bar { padding: 8px 10px; }

  .qr-image-wrap { width: min(244px, calc(100vw - 48px)); min-height: 0; }
  .qr-image-wrap img { width: 100%; height: auto; max-width: 220px; aspect-ratio: 1; }
}

@media (max-width: 359px) {
  .quick-action-card { padding: 12px; gap: 10px; }
  .quick-action-icon { width: 40px; height: 40px; font-size: 18px; }
  .stat-card-label { font-size: 11px; letter-spacing: 0; }
}

/* ---- Login Page ---- */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #EFF6FF 0%, #F0FDF4 100%);
}
.login-card {
  background: #fff;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: 46px;
  width: 100%;
  max-width: calc(380px * var(--ui-scale));
  box-shadow: var(--shadow-lg);
}
.login-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 28px;
}
.login-logo-icon {
  width: 44px; height: 44px;
  background: var(--color-primary);
  border-radius: var(--radius-lg);
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  font-size: 25px;
  font-weight: 700;
}
.login-logo-text { font-size: 25px; font-weight: 700; color: var(--color-gray-900); }

/* ---- Wizard ---- */
.wizard-steps {
  display: flex;
  gap: 0;
  margin-bottom: 24px;
  border-bottom: 2px solid var(--color-gray-200);
}
.wizard-step {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  font-size: 15px;
  color: var(--color-gray-500);
  cursor: default;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  flex-shrink: 0;
}
.wizard-step.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  font-weight: 500;
}
.wizard-step.done { color: var(--color-success); }
.wizard-step-num {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--color-gray-200);
  color: var(--color-gray-600);
  display: flex; align-items: center; justify-content: center;
  font-size: 12.5px;
  font-weight: 700;
  flex-shrink: 0;
}
.wizard-step.active .wizard-step-num { background: var(--color-primary); color: #fff; }
.wizard-step.done .wizard-step-num { background: var(--color-success); color: #fff; }

.wizard-panel { display: none; }
.wizard-panel.active { display: block; }

/* ---- Progress Bar ---- */
.progress-bar-wrap {
  background: var(--color-gray-200);
  border-radius: 99px;
  height: 8px;
  overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: 99px;
  transition: width .5s ease;
}
.progress-bar-fill.success { background: var(--color-success); }

/* ---- Chat ---- */
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.msg-bubble {
  max-width: 72%;
  padding: 8px 12px;
  border-radius: 12px;
  font-size: 15.5px;
  line-height: 1.5;
}
.msg-in { background: var(--color-gray-100); align-self: flex-start; border-radius: 2px 12px 12px 12px; }
.msg-out { background: var(--color-primary-light); align-self: flex-end; border-radius: 12px 2px 12px 12px; }
.msg-meta { font-size: 11.5px; color: var(--color-gray-400); margin-top: 2px; }
.msg-ticks { margin-left: 4px; }
.msg-ticks.sent { color: var(--color-gray-400); }
.msg-ticks.delivered { color: var(--color-primary); }
.msg-ticks.read { color: var(--color-success); }

.msg-media { margin-bottom: 6px; }
.msg-media img {
  max-width: 240px;
  max-height: 240px;
  border-radius: 8px;
  display: block;
  cursor: pointer;
}
.msg-media-doc {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  background: rgba(0,0,0,.04);
  border-radius: 8px;
  color: inherit;
  text-decoration: none;
  font-size: 13px;
}
.msg-media-doc:hover { text-decoration: underline; }

.chat-attach-preview {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 8px;
  margin-bottom: 8px;
  background: var(--color-gray-100);
  border-radius: var(--radius-md);
  font-size: 12px;
  max-width: 100%;
}
.chat-attach-preview.is-hidden { display: none; }
.chat-attach-preview button {
  border: none;
  background: transparent;
  cursor: pointer;
  color: var(--color-gray-500);
  padding: 0 4px;
}

.template-media-preview {
  margin-top: 8px;
  font-size: 12px;
  color: var(--color-gray-600);
}
.template-media-preview.is-hidden { display: none; }
.template-media-preview img {
  max-width: 100%;
  max-height: 160px;
  border-radius: 8px;
  margin-top: 6px;
  display: block;
}

.chat-ai-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 10px 16px;
  border-top: 1px solid var(--color-gray-200);
  background: var(--color-gray-50);
}
.chat-ai-bar.is-hidden { display: none; }

.chat-compose {
  border-top: 1px solid var(--color-gray-200);
  background: #fff;
  padding: 8px 16px 12px;
}

.chat-page-card {
  padding: 0;
  height: calc(100dvh - var(--topbar-height) - 48px);
  min-height: 320px;
  display: flex;
  flex-direction: column;
}

.chat-input-bar {
  display: flex;
  gap: 8px;
  align-items: flex-end;
}
.chat-input-bar textarea {
  flex: 1;
  min-width: 0;
  resize: none;
  min-height: 40px;
  max-height: 120px;
  padding: 8px 12px;
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 16px;
  outline: none;
  transition: border-color var(--transition);
}
.chat-input-bar textarea:focus { border-color: var(--color-primary); }
.chat-attach-btn {
  flex-shrink: 0;
  min-width: 40px;
  min-height: 40px;
  font-size: 20px;
  line-height: 1;
}

/* ---- Drag-Drop Zone ---- */
.dropzone {
  border: 2px dashed var(--color-gray-300);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
}
.dropzone:hover, .dropzone.dragover {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}
.dropzone-icon { font-size: 41px; margin-bottom: 10px; }
.dropzone-hint { font-size: 15px; color: var(--color-gray-500); margin-top: 6px; }

/* ---- Template Preview ---- */
.template-form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  align-items: start;
  min-width: 0;
  width: 100%;
}
@media (min-width: 1024px) {
  .template-form-grid {
    grid-template-columns: minmax(0, 1fr) min(320px, 36%);
  }
}
.template-preview-card {
  position: static;
}
@media (min-width: 1024px) {
  .template-preview-card {
    position: sticky;
    top: calc(var(--topbar-height) + 16px);
  }
}
.template-preview-box {
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: 16px;
  min-height: 120px;
  font-size: 15.5px;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--color-gray-800);
}
@media (min-width: 1024px) {
  .template-preview-box {
    position: sticky;
    top: calc(var(--topbar-height) + 16px);
  }
}

/* ---- Page width helpers ---- */
.content-narrow {
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  min-width: 0;
}

/* ---- QR Block ---- */
.qr-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 24px;
}
.qr-image-wrap {
  width: 244px;
  min-height: 244px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  background: #fff;
  overflow: hidden;
  padding: 12px;
  box-sizing: border-box;
}
.qr-image-wrap img {
  width: 220px;
  height: 220px;
  image-rendering: pixelated;
}
.qr-status-text {
  font-size: 16px;
  color: var(--color-gray-600);
  text-align: center;
  max-width: 300px;
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--color-gray-300); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-gray-400); }

/* ---- AI Settings ---- */
.ai-settings-layout {
  max-width: 1100px;
}
.ai-settings-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  align-items: start;
  min-width: 0;
  width: 100%;
}
@media (min-width: 960px) {
  .ai-settings-grid {
    grid-template-columns: minmax(0, 1fr) min(360px, 38%);
  }
}
.ai-textarea {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 13px;
  line-height: 1.45;
  min-height: 200px;
}
.ai-status-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.ai-status-list li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 15px;
  color: var(--color-gray-700);
}
.ai-test-panel {
  position: sticky;
  top: calc(var(--topbar-height) + 16px);
}
.ai-test-result {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.ai-test-result.is-hidden { display: none; }
.ai-test-label {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--color-gray-500);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}
.ai-test-box {
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  padding: 12px;
  font-size: 15px;
  white-space: pre-wrap;
}
.ai-test-pre {
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  padding: 10px;
  font-size: 12px;
  overflow: auto;
  max-height: 200px;
  margin: 0;
}

/* ---- Mobile layout fixes (320px+, must stay at end) ---- */
@media (max-width: 767px) {
  .app-layout,
  .main-content,
  .page-body {
    max-width: 100%;
    min-width: 0;
  }

  .topbar {
    flex-wrap: wrap;
    align-items: flex-start;
    height: auto;
    min-height: var(--topbar-height);
    padding-top: 10px;
    padding-bottom: 10px;
  }

  .topbar-title {
    white-space: normal;
    overflow: visible;
    text-overflow: unset;
    display: block;
    -webkit-line-clamp: unset;
    -webkit-box-orient: unset;
  }

  .topbar-actions {
    width: 100%;
    flex-wrap: wrap;
    justify-content: stretch;
    flex-shrink: 1;
  }

  .topbar-actions .btn {
    flex: 1 1 calc(50% - 4px);
    min-width: 0;
    justify-content: center;
    text-align: center;
  }

  .template-preview-box,
  .template-preview-card {
    position: static;
  }

  .content-narrow {
    max-width: none;
  }
}

@media (max-width: 479px) {
  .topbar-actions .btn {
    flex: 1 1 100%;
    font-size: 12px;
    padding: 7px 10px;
  }

  .topbar-actions .btn-sm {
    white-space: normal;
    line-height: 1.25;
  }
}