/* ==========================================================================
   OmniBlast - Modern Design System & Styles
   ========================================================================== */

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

:root {
  /* Color Palette - Vibrant Dark Mode */
  --bg-dark: #0b0f19;
  --bg-card: #131b2e;
  --bg-card-hover: #1a243d;
  --bg-glass: rgba(19, 27, 46, 0.75);
  --bg-input: #1b2640;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-highlight: rgba(99, 102, 241, 0.3);

  /* Brand Colors */
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-light: rgba(99, 102, 241, 0.15);
  --primary-glow: rgba(99, 102, 241, 0.4);

  --accent-cyan: #06b6d4;
  --accent-purple: #a855f7;
  --accent-pink: #ec4899;

  /* Status Colors */
  --success: #10b981;
  --success-bg: rgba(16, 185, 129, 0.15);
  --warning: #f59e0b;
  --warning-bg: rgba(245, 158, 11, 0.15);
  --danger: #ef4444;
  --danger-bg: rgba(239, 68, 68, 0.15);
  --info: #3b82f6;
  --info-bg: rgba(59, 130, 246, 0.15);

  /* Typography Colors */
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;

  /* Layout Constants */
  --sidebar-width: 260px;
  --header-height: 70px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-card: 0 10px 25px -5px rgba(0, 0, 0, 0.4), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Global */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.5;
  overflow-x: hidden;
  min-height: 100vh;
}

/* Typography Helpers */
code, pre, .font-mono {
  font-family: 'JetBrains Mono', monospace;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--text-main);
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* Layout Grid */
.app-container {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-card);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
}

.brand {
  padding: 1.5rem 1.75rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

.brand-logo {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary), var(--accent-purple));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 4px 15px var(--primary-glow);
}

.brand-title {
  font-size: 1.25rem;
  font-weight: 800;
  background: linear-gradient(135deg, #fff 30%, var(--accent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-badge {
  font-size: 0.65rem;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 700;
  text-transform: uppercase;
  margin-left: auto;
}

.nav-menu {
  padding: 1.25rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  flex: 1;
}

.nav-section-title {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  font-weight: 700;
  padding: 0.75rem 0.75rem 0.25rem;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  transition: var(--transition-fast);
  cursor: pointer;
}

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

.nav-item.active {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  box-shadow: 0 4px 15px var(--primary-glow);
}

.nav-item i {
  font-size: 1.2rem;
}

.sidebar-footer {
  padding: 1.25rem;
  border-top: 1px solid var(--border-color);
}

.system-status {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 10px var(--success);
}

.status-text h5 {
  font-size: 0.8rem;
  font-weight: 600;
}

.status-text p {
  font-size: 0.7rem;
  color: var(--text-muted);
}

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

/* Header */
.top-header {
  height: var(--header-height);
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  position: sticky;
  top: 0;
  z-index: 90;
}

.page-heading {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.page-title {
  font-size: 1.35rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Page Views */
.content-area {
  padding: 2rem;
  flex: 1;
}

.view-panel {
  display: none;
  animation: fadeIn 0.3s ease;
}

.view-panel.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.875rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition-fast);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  color: #fff;
  box-shadow: 0 4px 14px var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px var(--primary-glow);
}

.btn-secondary {
  background: var(--bg-card-hover);
  color: var(--text-main);
  border-color: var(--border-color);
}

.btn-secondary:hover {
  background: var(--border-color);
}

.btn-success {
  background: linear-gradient(135deg, var(--success), #059669);
  color: #fff;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
}

.btn-success:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

.btn-danger {
  background: linear-gradient(135deg, var(--danger), #dc2626);
  color: #fff;
}

.btn-icon {
  padding: 0.65rem;
  border-radius: var(--radius-md);
}

.btn-sm {
  padding: 0.4rem 0.85rem;
  font-size: 0.8rem;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* Cards & Containers */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--border-color);
}

.card-title {
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* KPI Dashboard Grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: var(--transition-fast);
}

.kpi-card:hover {
  border-color: var(--border-highlight);
  transform: translateY(-2px);
}

.kpi-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.kpi-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.kpi-icon.indigo { background: var(--primary-light); color: var(--primary); }
.kpi-icon.cyan { background: rgba(6, 182, 212, 0.15); color: var(--accent-cyan); }
.kpi-icon.emerald { background: var(--success-bg); color: var(--success); }
.kpi-icon.amber { background: var(--warning-bg); color: var(--warning); }

.kpi-title {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 600;
}

.kpi-value {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.kpi-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.kpi-sub.up { color: var(--success); }
.kpi-sub.down { color: var(--danger); }

/* Charts Layout */
.dashboard-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

@media (max-width: 1100px) {
  .dashboard-grid { grid-template-columns: 1fr; }
}

/* Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.custom-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.875rem;
}

.custom-table th {
  background: rgba(0, 0, 0, 0.2);
  color: var(--text-muted);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  padding: 0.85rem 1.25rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.custom-table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-main);
  vertical-align: middle;
}

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

.custom-table tr:hover td {
  background: var(--bg-card-hover);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.65rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-success { background: var(--success-bg); color: var(--success); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-danger { background: var(--danger-bg); color: var(--danger); }
.badge-info { background: var(--info-bg); color: var(--info); }
.badge-secondary { background: var(--bg-input); color: var(--text-muted); }

/* Forms & Inputs */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-main);
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.9rem;
  transition: var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

textarea.form-control {
  resize: vertical;
  min-height: 100px;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
}

/* Wizard Steps */
.wizard-steps {
  display: flex;
  justify-content: space-between;
  margin-bottom: 2rem;
  position: relative;
  padding: 0 1rem;
}

.wizard-steps::before {
  content: '';
  position: absolute;
  top: 20px;
  left: 2rem;
  right: 2rem;
  height: 2px;
  background: var(--border-color);
  z-index: 1;
}

.step-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  position: relative;
  z-index: 2;
  cursor: pointer;
}

.step-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 2px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: var(--transition-fast);
}

.step-item.active .step-icon {
  border-color: var(--primary);
  background: var(--primary);
  color: #fff;
  box-shadow: 0 0 15px var(--primary-glow);
}

.step-item.completed .step-icon {
  border-color: var(--success);
  background: var(--success);
  color: #fff;
}

.step-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
}

.step-item.active .step-label {
  color: var(--text-main);
}

/* Drag & Drop Upload */
.dropzone {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-lg);
  padding: 3rem 2rem;
  text-align: center;
  background: rgba(0, 0, 0, 0.15);
  transition: var(--transition-fast);
  cursor: pointer;
}

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

.dropzone-icon {
  font-size: 2.5rem;
  color: var(--primary);
  margin-bottom: 1rem;
}

/* Template Selector Grid */
.template-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.template-card {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-input);
  padding: 1.25rem;
  cursor: pointer;
  transition: var(--transition-fast);
  text-align: center;
}

.template-card:hover, .template-card.selected {
  border-color: var(--primary);
  background: var(--primary-light);
  transform: translateY(-2px);
}

.template-card i {
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: 0.75rem;
}

.template-card h4 {
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
}

.template-card p {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Live Email Editor Layout */
.editor-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  min-height: 450px;
}

@media (max-width: 992px) {
  .editor-container { grid-template-columns: 1fr; }
}

.preview-frame {
  width: 100%;
  height: 450px;
  background: #fff;
  border-radius: var(--radius-md);
  border: none;
}

.preview-mobile {
  max-width: 375px;
  margin: 0 auto;
  border: 12px solid #222;
  border-radius: 36px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

/* Spam Auditor Card */
.spam-auditor {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  margin-top: 1rem;
}

.score-bar-container {
  height: 8px;
  background: var(--bg-input);
  border-radius: 4px;
  overflow: hidden;
  margin: 0.5rem 0 1rem;
}

.score-bar {
  height: 100%;
  width: 90%;
  background: var(--success);
  transition: var(--transition-normal);
}

/* Modal Overlay */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-normal);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 700px;
  box-shadow: var(--shadow-card);
  overflow: hidden;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}

.modal-header {
  padding: 1.25rem 1.75rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-body {
  padding: 1.75rem;
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  padding: 1.25rem 1.75rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

/* Live Terminal Log for Blast Engine */
.terminal-log {
  background: #050811;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: #10b981;
  height: 200px;
  overflow-y: auto;
  margin-top: 1rem;
}

.log-line {
  margin-bottom: 0.35rem;
  display: flex;
  gap: 0.5rem;
}

.log-time { color: var(--text-dim); }
.log-info { color: var(--accent-cyan); }
.log-success { color: var(--success); }
.log-error { color: var(--danger); }

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.toast {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.25rem;
  color: var(--text-main);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 280px;
  animation: slideInRight 0.3s ease;
}

.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--danger); }
.toast.warning { border-left-color: var(--warning); }

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

/* Tag Pill */
.tag-pill {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 600;
  margin: 2px;
  cursor: pointer;
}
.tag-pill:hover {
  background: var(--primary);
  color: #fff;
}