/*
 * EmailPlatform - Modern Clean SaaS Design System
 * Inspired by modern email automation platforms (Inter, Stripe, Linear)
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --primary-border: #bfdbfe;
  
  --bg-page: #f8fafc;
  --bg-card: #ffffff;
  --bg-subtle: #f1f5f9;
  
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-subtle: #94a3b8;
  
  --border-color: #e2e8f0;
  --border-light: #f1f5f9;
  
  --success: #10b981;
  --success-bg: #ecfdf5;
  --success-border: #a7f3d0;
  
  --warning: #f59e0b;
  --warning-bg: #fffbeb;
  --warning-border: #fde68a;
  --warning-text: #b45309;
  
  --danger: #ef4444;
  --danger-bg: #fef2f2;
  --danger-border: #fecaca;
  
  --purple: #8b5cf6;
  --purple-bg: #f5f3ff;
  --purple-border: #ddd6fe;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -4px rgba(0, 0, 0, 0.03);
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', Menlo, Consolas, monospace;
}

[data-theme="dark"] {
  --primary: #3b82f6;
  --primary-hover: #60a5fa;
  --primary-light: rgba(59, 130, 246, 0.15);
  --primary-border: rgba(59, 130, 246, 0.35);
  
  --bg-page: #0b0f19;
  --bg-card: #111827;
  --bg-subtle: #1e293b;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-subtle: #64748b;
  
  --border-color: #1e293b;
  --border-light: #182234;
  
  --success-bg: rgba(16, 185, 129, 0.14);
  --success-border: rgba(16, 185, 129, 0.3);
  
  --warning-bg: rgba(245, 158, 11, 0.14);
  --warning-border: rgba(245, 158, 11, 0.3);
  --warning-text: #fbbf24;
  
  --danger-bg: rgba(239, 68, 68, 0.14);
  --danger-border: rgba(239, 68, 68, 0.3);
  
  --purple-bg: rgba(139, 92, 246, 0.14);
  --purple-border: rgba(139, 92, 246, 0.3);
  
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.35);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.45), 0 2px 4px -2px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 10px 18px -3px rgba(0, 0, 0, 0.55), 0 4px 8px -4px rgba(0, 0, 0, 0.45);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-page);
  color: var(--text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.25s ease, color 0.25s ease;
}

/* Modern Scrollbars */
::-webkit-scrollbar {
  width: 7px;
  height: 7px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}
[data-theme="dark"] ::-webkit-scrollbar-thumb {
  background: #334155;
}
[data-theme="dark"] ::-webkit-scrollbar-thumb:hover {
  background: #475569;
}

/* Layout Container */
.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header & Top Navigation */
.platform-header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  padding: 14px 0;
  position: sticky;
  top: 0;
  z-index: 100;
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.brand-logo {
  width: 36px;
  height: 36px;
  background: var(--primary);
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 1.2rem;
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.3);
}

.brand-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.status-dot {
  width: 8px;
  height: 8px;
  background: var(--success);
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
}

.header-menu-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-main);
  font-size: 1.25rem;
  cursor: pointer;
  transition: all 0.15s ease;
}

.header-menu-btn:hover {
  background: var(--bg-subtle);
  border-color: #cbd5e1;
}

/* Quick Nav Links in Header (Top Bar Navigation) */
.header-nav-links {
  display: none;
  align-items: center;
  gap: 6px;
}

@media (min-width: 820px) {
  .header-nav-links {
    display: flex;
  }
}

.header-nav-item {
  background: transparent;
  border: 1px solid transparent;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s ease;
}

.header-nav-item:hover {
  background: var(--bg-subtle);
  color: var(--text-main);
}

.header-nav-item.active {
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
}

.header-nav-item .pill-count {
  background: var(--bg-subtle);
  color: var(--text-muted);
  font-size: 0.72rem;
  padding: 1px 6px;
  border-radius: var(--radius-full);
  font-weight: 600;
}

.header-nav-item.active .pill-count {
  background: rgba(37, 99, 235, 0.15);
  color: var(--primary);
}

[data-theme="dark"] .header-nav-item.active {
  background: rgba(59, 130, 246, 0.2);
  color: #60a5fa;
}

[data-theme="dark"] .header-nav-item.active .pill-count {
  background: rgba(59, 130, 246, 0.3);
  color: #93c5fd;
}

/* Three-Line Menu Floating Dropdown Drawer */
.header-menu-dropdown-wrapper {
  position: relative;
}

.header-nav-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  width: 280px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: 0 16px 36px -4px rgba(15, 23, 42, 0.14), 0 4px 12px -2px rgba(15, 23, 42, 0.08);
  padding: 8px;
  z-index: 1050;
  display: none;
  animation: dropdownPop 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  backdrop-filter: blur(8px);
}

.header-nav-dropdown.open {
  display: block;
}

@keyframes dropdownPop {
  from { transform: translateY(-6px) scale(0.97); opacity: 0; }
  to { transform: translateY(0) scale(1); opacity: 1; }
}

.dropdown-header {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  padding: 8px 12px 6px 12px;
  border-bottom: 1px solid var(--border-light);
  margin-bottom: 4px;
}

.header-nav-dropdown .dropdown-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-main);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
}

.header-nav-dropdown .dropdown-item:hover {
  background: var(--bg-subtle);
  transform: translateX(2px);
}

.header-nav-dropdown .dropdown-item.active {
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
}

[data-theme="dark"] .header-nav-dropdown {
  box-shadow: 0 16px 36px -4px rgba(0, 0, 0, 0.65);
  border-color: #334155;
}

[data-theme="dark"] .header-nav-dropdown .dropdown-item.active {
  background: rgba(59, 130, 246, 0.2);
  color: #60a5fa;
}

/* Main Dashboard Area */
.dashboard-main {
  padding: 32px 0 60px 0;
}

/* Overview Title & Action Bar */
.overview-header {
  margin-bottom: 24px;
}

.overview-title {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.overview-subtitle {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-top: 6px;
  font-weight: 400;
}

/* Actions Row: Pill + Refresh + New Campaign */
.action-bar-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.pacing-countdown-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--warning-bg);
  border: 1px solid var(--warning-border);
  color: var(--warning-text);
  font-size: 0.92rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.pacing-countdown-pill i {
  font-size: 1.05rem;
}

.icon-action-btn {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 1.15rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.icon-action-btn:hover {
  color: var(--text-main);
  border-color: #cbd5e1;
  background: #f8fafc;
  transform: rotate(45deg);
}

.btn-primary-action {
  background: var(--primary);
  color: #ffffff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 10px 20px;
  font-size: 0.95rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
  transition: all 0.2s ease;
}

.btn-primary-action:hover {
  background: var(--primary-hover);
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.35);
  transform: translateY(-1px);
}

/* 5 Core Stat Cards Grid */
.stat-cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 24px;
}

@media (min-width: 768px) {
  .stat-cards-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1050px) {
  .stat-cards-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  position: relative;
}

.metric-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: #cbd5e1;
}

.metric-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.metric-label {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.metric-icon-badge {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
}

/* Specific Badge Palette */
.badge-blue {
  background: #eff6ff;
  color: #3b82f6;
}

.badge-amber {
  background: #fef3c7;
  color: #f59e0b;
}

.badge-green {
  background: #dcfce7;
  color: #10b981;
}

.badge-purple {
  background: #f3e8ff;
  color: #a855f7;
}

.badge-cyan {
  background: #ecfeff;
  color: #0891b2;
}

.metric-value {
  font-size: 2.15rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin: 16px 0 6px 0;
}

.metric-subtext {
  font-size: 0.86rem;
  color: var(--text-muted);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Navigation Tabs Bar */
.platform-tabs-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 32px 0 20px 0;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 12px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.platform-tabs-nav::-webkit-scrollbar {
  display: none;
}

.tab-pill {
  background: transparent;
  border: none;
  outline: none;
  padding: 8px 16px;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.tab-pill:hover {
  background: var(--bg-subtle);
  color: var(--text-main);
}

.tab-pill.active {
  background: #ffffff;
  color: var(--primary);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  border: 1px solid var(--border-color);
}

.tab-pill .pill-count {
  background: var(--bg-subtle);
  color: var(--text-muted);
  font-size: 0.75rem;
  padding: 2px 7px;
  border-radius: var(--radius-full);
}

.tab-pill.active .pill-count {
  background: var(--primary-light);
  color: var(--primary);
}

/* Tab Panels */
.tab-content-pane {
  display: none;
  animation: fadeIn 0.25s ease;
}

.tab-content-pane.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Content Cards & Sections */
.content-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 24px;
}

.content-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}

.content-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 10px;
}

.content-card-subtitle {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Dispatch Controller Bar */
.dispatch-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
  flex-wrap: wrap;
  gap: 16px;
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

.dispatch-status-indicator {
  display: flex;
  align-items: center;
  gap: 14px;
}

.pulse-beacon {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #64748b;
  position: relative;
}

.pulse-beacon.active {
  background: var(--success);
  box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.2);
  animation: pulseBeacon 2s infinite;
}

.pulse-beacon.paused {
  background: var(--warning);
  box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.2);
}

@keyframes pulseBeacon {
  0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
  70% { box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.dispatch-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-ctrl {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.92rem;
  font-weight: 600;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-ctrl:active {
  transform: scale(0.97);
}

.btn-ctrl-start {
  background: var(--success);
  color: #ffffff;
  border: none;
  box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
}

.btn-ctrl-start:hover {
  background: #059669;
  transform: translateY(-1px);
}

.btn-ctrl-pause {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
}

.btn-ctrl-pause:hover {
  background: var(--bg-subtle);
}

.btn-ctrl-stop {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--danger);
}

.btn-ctrl-stop:hover {
  background: var(--danger-bg);
  border-color: var(--danger-border);
}

/* Hourly Activity Chart Styles */
.activity-chart-card {
  margin-bottom: 24px;
  border: 1px solid var(--border-color);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.25s ease;
}

.activity-chart-card:hover {
  border-color: var(--primary-border);
  box-shadow: var(--shadow-md);
}

.chart-header-badges {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.chart-stat-chip {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  padding: 5px 12px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
}

.chart-stat-chip strong {
  color: var(--text-main);
  font-weight: 700;
}

.text-amber { color: #f59e0b; }
.text-green { color: #10b981; }
.text-blue { color: var(--primary); }

.chart-container-wrapper {
  position: relative;
  width: 100%;
  height: 190px;
  margin-top: 16px;
}

#dispatchActivityCanvas {
  width: 100%;
  height: 100%;
  display: block;
  border-radius: var(--radius-sm);
}

/* Terminal Log Feed */
.terminal-card {
  background: #0f172a;
  border-radius: var(--radius-md);
  padding: 18px;
  color: #f8fafc;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  max-height: 280px;
  overflow-y: auto;
}

.log-entry {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 6px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.log-time {
  color: #94a3b8;
  font-size: 0.78rem;
  min-width: 75px;
}

.log-badge-success { color: #34d399; }
.log-badge-warn { color: #fbbf24; }
.log-badge-error { color: #f87171; }
.log-badge-info { color: #60a5fa; }

/* Tables */
.custom-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.custom-table th {
  background: var(--bg-subtle);
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 12px 16px;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.custom-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-light);
  font-size: 0.9rem;
  color: var(--text-main);
}

.custom-table tr:hover td {
  background: #f8fafc;
}

/* Badges */
.status-pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
  line-height: 1;
}

.pill-accepted {
  background: var(--success-bg);
  color: var(--success);
  border: 1px solid var(--success-border);
}

.pill-bounced {
  background: #fef3c7;
  color: #d97706;
  border: 1px solid #fde68a;
}

.pill-failed {
  background: var(--danger-bg);
  color: var(--danger);
  border: 1px solid var(--danger-border);
}

.pill-pending {
  background: #f1f5f9;
  color: #64748b;
  border: 1px solid #cbd5e1;
}

.pill-replied {
  background: var(--purple-bg);
  color: var(--purple);
  border: 1px solid var(--purple-border);
}

/* Forms & Inputs */
.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 6px;
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  font-family: inherit;
  font-size: 0.92rem;
  color: var(--text-main);
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background-color 0.25s ease;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-helper {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 5px;
}

/* Modal Dialog */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(5px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-overlay.open {
  display: flex;
}

.modal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  max-width: 680px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  padding: 28px;
  animation: modalPop 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

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

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.modal-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
}

.modal-close-btn {
  background: transparent;
  border: none;
  font-size: 1.3rem;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
}

.modal-close-btn:hover {
  color: var(--text-main);
}

/* Dropzone */
.file-dropzone {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: 36px 20px;
  text-align: center;
  background: var(--bg-subtle);
  cursor: pointer;
  transition: all 0.2s ease;
}

.file-dropzone:hover, .file-dropzone.dragover {
  border-color: var(--primary);
  background: var(--primary-light);
}

/* Theme Toggle Button */
.theme-toggle-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-main);
  font-size: 1.15rem;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.theme-toggle-btn:hover {
  background: var(--bg-subtle);
  border-color: var(--primary-border);
  color: var(--primary);
  transform: rotate(20deg) scale(1.05);
}

/* Dark Mode Adjustments for Badges and Deliverability Banner */
[data-theme="dark"] .deliverability-shield-banner {
  background: rgba(16, 185, 129, 0.08);
  border-color: rgba(16, 185, 129, 0.25);
}

[data-theme="dark"] .deliverability-shield-title {
  color: #34d399;
}

[data-theme="dark"] .deliverability-shield-desc {
  color: #a7f3d0;
}

[data-theme="dark"] .badge-blue {
  background: rgba(59, 130, 246, 0.15);
  color: #60a5fa;
}

[data-theme="dark"] .badge-amber {
  background: rgba(245, 158, 11, 0.15);
  color: #fbbf24;
}

[data-theme="dark"] .badge-green {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
}

[data-theme="dark"] .badge-purple {
  background: rgba(168, 85, 247, 0.15);
  color: #c084fc;
}

[data-theme="dark"] .badge-cyan {
  background: rgba(8, 145, 178, 0.2);
  color: #22d3ee;
}

[data-theme="dark"] .pill-pending {
  background: #1e293b;
  color: #94a3b8;
  border-color: #334155;
}

[data-theme="dark"] .pill-bounced {
  background: rgba(245, 158, 11, 0.12);
  color: #fbbf24;
  border-color: rgba(245, 158, 11, 0.25);
}

[data-theme="dark"] .pacing-countdown-pill {
  background: #1e293b;
  color: #fbbf24;
  border-color: #334155;
}

[data-theme="dark"] .icon-action-btn {
  background: var(--bg-card);
  color: var(--text-muted);
  border-color: var(--border-color);
}

[data-theme="dark"] .tab-pill {
  color: var(--text-muted);
}

[data-theme="dark"] .tab-pill:hover {
  background: var(--bg-subtle);
  color: var(--text-main);
}

[data-theme="dark"] .tab-pill.active {
  background: var(--primary);
  color: #ffffff;
}

[data-theme="dark"] .tab-pill.active .pill-count {
  background: rgba(255, 255, 255, 0.2);
  color: #ffffff;
}

.dropzone-icon {
  font-size: 2.2rem;
  color: var(--primary);
  margin-bottom: 8px;
}

/* Delivery Sentinel Shield Box */
.deliverability-shield-banner {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: var(--radius-md);
  padding: 16px 20px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 20px;
}

.deliverability-shield-banner .shield-icon {
  color: #16a34a;
  font-size: 1.4rem;
  margin-top: 2px;
}

.deliverability-shield-title {
  font-weight: 700;
  color: #166534;
  font-size: 0.95rem;
}

.deliverability-shield-desc {
  font-size: 0.85rem;
  color: #15803d;
  margin-top: 3px;
  line-height: 1.4;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast-msg {
  background: #0f172a;
  color: #ffffff;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slideInRight 0.2s ease;
}

@keyframes slideInRight {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}