/* ==========================================================================
   Telegram Multi-Account VC Scraper & Auto-DM System - Design System
   Color Palette: Pure White (#FFFFFF), Slate (#F8FAFC, #E2E8F0, #64748B, #0F172A),
   Electric Indigo (#4F46E5, #4338CA), Success (#10B981), Amber (#F59E0B), Danger (#EF4444)
   ========================================================================== */

:root {
  --bg-primary: #FFFFFF;
  --bg-secondary: #F8FAFC;
  --bg-tertiary: #F1F5F9;
  
  --surface-card: #FFFFFF;
  --surface-card-hover: #FAFAFA;
  --surface-muted: #F8FAFC;
  --border-subtle: #E2E8F0;
  --border-strong: #CBD5E1;
  
  --text-primary: #0F172A;
  --text-secondary: #64748B;
  --text-muted: #94A3B8;
  
  --accent-primary: #4F46E5;
  --accent-hover: #4338CA;
  --accent-subtle: #EEF2FF;
  --accent-ring: rgba(79, 70, 229, 0.2);
  
  --status-success: #10B981;
  --status-success-bg: #ECFDF5;
  --status-warning: #F59E0B;
  --status-warning-bg: #FFFBEB;
  --status-danger: #EF4444;
  --status-danger-bg: #FEF2F2;
  --status-info: #0EA5E9;
  --status-info-bg: #F0F9FF;
  --status-purple: #8B5CF6;
  --status-purple-bg: #F5F3FF;

  --terminal-bg: #0F172A;
  --terminal-text: #F8FAFC;
  --terminal-border: #1E293B;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.04);

  --font-sans: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

/* App Layout Container */
.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Navigation Header */
.navbar {
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow-sm);
}

.navbar-inner {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.brand-logo {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #4F46E5, #8B5CF6);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  box-shadow: 0 4px 10px rgba(79, 70, 229, 0.3);
}

.brand-info h1 {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand-info p {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Live Heartbeat Indicator */
.connection-badge {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 0.75rem;
  background-color: var(--status-success-bg);
  color: #065F46;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--status-success);
  border-radius: 50%;
  animation: pulse-ring 2s infinite cubic-bezier(0.4, 0, 0.6, 1);
}

@keyframes pulse-ring {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(1.3); }
}

/* Main Dashboard Body */
.dashboard-main {
  max-width: 1440px;
  width: 100%;
  margin: 0 auto;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* Stats Metric Cards Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.stat-card {
  background-color: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.15rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.stat-content .stat-label {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-secondary);
  margin-bottom: 0.25rem;
}

.stat-content .stat-value {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.stat-content .stat-sub {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

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

.stat-icon.indigo { background-color: var(--accent-subtle); color: var(--accent-primary); }
.stat-icon.purple { background-color: var(--status-purple-bg); color: var(--status-purple); }
.stat-icon.emerald { background-color: var(--status-success-bg); color: var(--status-success); }
.stat-icon.amber { background-color: var(--status-warning-bg); color: var(--status-warning); }

/* Modular Card Components */
.dashboard-card {
  background-color: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.card-header {
  padding: 1.15rem 1.35rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: #FFFFFF;
}

.card-title-group {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.card-title-group h2 {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.card-title-group .card-badge {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.15rem 0.55rem;
  border-radius: var(--radius-full);
  background-color: var(--accent-subtle);
  color: var(--accent-primary);
}

.card-body {
  padding: 1.35rem;
}

/* Two-column layout for monitor & sequencer */
.grid-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 1024px) {
  .grid-2col {
    grid-template-columns: 1fr;
  }
}

/* Buttons & Controls */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.55rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  line-height: 1;
}

.btn-primary {
  background-color: var(--accent-primary);
  color: #FFFFFF;
  box-shadow: 0 2px 4px rgba(79, 70, 229, 0.2);
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  box-shadow: 0 4px 8px rgba(79, 70, 229, 0.3);
}

.btn-secondary {
  background-color: #FFFFFF;
  color: var(--text-primary);
  border-color: var(--border-strong);
}

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

.btn-outline-indigo {
  background-color: var(--accent-subtle);
  color: var(--accent-primary);
  border-color: rgba(79, 70, 229, 0.2);
}

.btn-outline-indigo:hover {
  background-color: #E0E7FF;
}

.btn-danger {
  background-color: var(--status-danger-bg);
  color: var(--status-danger);
  border-color: rgba(239, 68, 68, 0.2);
}

.btn-danger:hover {
  background-color: #FEE2E2;
}

.btn-sm {
  padding: 0.38rem 0.75rem;
  font-size: 0.75rem;
}

/* Accounts Grid */
.accounts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1rem;
}

.account-card {
  background-color: #FFFFFF;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  transition: var(--transition);
  position: relative;
}

.account-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
}

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

.account-user-meta {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.account-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, #6366F1, #4F46E5);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
}

.account-names h4 {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-primary);
}

.account-names p {
  font-size: 0.74rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

/* Status Badges */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.22rem 0.65rem;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.status-pill.online { background-color: var(--status-success-bg); color: #047857; }
.status-pill.scanning { background-color: var(--accent-subtle); color: var(--accent-primary); }
.status-pill.in_vc { background-color: var(--status-purple-bg); color: var(--status-purple); }
.status-pill.restricted { background-color: var(--status-danger-bg); color: var(--status-danger); }
.status-pill.cooling_down { background-color: var(--status-warning-bg); color: var(--status-warning); }
.status-pill.offline { background-color: var(--surface-muted); color: var(--text-muted); }

.account-vc-status {
  background-color: var(--surface-muted);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.75rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.account-card-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-subtle);
  padding-top: 0.65rem;
}

/* VC Monitor Active View */
.vc-active-panel {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.vc-current-banner {
  background: linear-gradient(135deg, #1E1B4B, #312E81);
  color: #FFFFFF;
  border-radius: var(--radius-md);
  padding: 1.25rem;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(49, 46, 129, 0.25);
}

.vc-current-banner .banner-tag {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: rgba(255, 255, 255, 0.15);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-full);
  display: inline-block;
  margin-bottom: 0.4rem;
}

.vc-current-banner h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.vc-current-banner p {
  font-size: 0.78rem;
  color: #C7D2FE;
}

.vc-banner-meta {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-top: 0.85rem;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.78rem;
}

/* Scraped Participants List */
.participants-box {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  max-height: 260px;
  overflow-y: auto;
}

.participant-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 0.9rem;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.8rem;
}

.participant-row:last-child {
  border-bottom: none;
}

.participant-info {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.participant-info .uname {
  font-weight: 600;
  color: var(--text-primary);
}

.participant-info .uid {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* Sequencer & Campaign Form */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 1rem;
}

.form-label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.form-input, .form-textarea, .form-select {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  padding: 0.6rem 0.85rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  background-color: #FFFFFF;
  color: var(--text-primary);
  outline: none;
  transition: var(--transition);
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-ring);
}

.form-textarea {
  min-height: 80px;
  resize: vertical;
}

/* Voice Message Uploader & Audio Recorder */
.audio-action-card {
  background-color: var(--surface-muted);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-md);
  padding: 0.9rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.audio-controls-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.65rem;
}

.audio-status-badge {
  font-size: 0.74rem;
  font-family: var(--font-mono);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.audio-player-preview {
  width: 100%;
  height: 32px;
}

/* Live Progress Bar */
.progress-container {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin: 1rem 0;
}

.progress-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.progress-track {
  width: 100%;
  height: 9px;
  background-color: var(--border-subtle);
  border-radius: var(--radius-full);
  overflow: hidden;
  display: flex;
}

.progress-bar-sent {
  background-color: var(--status-success);
  height: 100%;
  transition: width 0.3s ease;
}

.progress-bar-failed {
  background-color: var(--status-danger);
  height: 100%;
  transition: width 0.3s ease;
}

.progress-bar-skipped {
  background-color: var(--status-warning);
  height: 100%;
  transition: width 0.3s ease;
}

/* Terminal Log Stream Component */
.terminal-window {
  background-color: var(--terminal-bg);
  border: 1px solid var(--terminal-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
}

.terminal-header {
  background-color: #0A0F1D;
  padding: 0.6rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--terminal-border);
}

.terminal-dots {
  display: flex;
  align-items: center;
  gap: 6px;
}

.t-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.t-dot.red { background-color: #EF4444; }
.t-dot.amber { background-color: #F59E0B; }
.t-dot.green { background-color: #10B981; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: #94A3B8;
  letter-spacing: 0.05em;
}

.terminal-body {
  height: 320px;
  overflow-y: auto;
  padding: 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  color: #E2E8F0;
}

.log-line {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  line-height: 1.4;
  word-break: break-all;
}

.log-time {
  color: #64748B;
  flex-shrink: 0;
}

.log-module {
  padding: 0.05rem 0.35rem;
  border-radius: 3px;
  font-weight: 700;
  font-size: 0.68rem;
  flex-shrink: 0;
}

.log-module.AUTH { background: rgba(99, 102, 241, 0.2); color: #818CF8; }
.log-module.VC_SCANNER { background: rgba(139, 92, 246, 0.2); color: #C084FC; }
.log-module.SEQUENCER { background: rgba(14, 165, 233, 0.2); color: #38BDF8; }
.log-module.SPAMBOT { background: rgba(245, 158, 11, 0.2); color: #FCD34D; }
.log-module.SYSTEM { background: rgba(148, 163, 184, 0.2); color: #CBD5E1; }

.log-msg.INFO { color: #F1F5F9; }
.log-msg.SUCCESS { color: #34D399; }
.log-msg.WARNING { color: #FBBF24; }
.log-msg.ERROR { color: #F87171; }

/* Modal Backdrop & Window */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background-color: #FFFFFF;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 480px;
  box-shadow: var(--shadow-xl);
  transform: scale(0.95);
  transition: transform 0.2s ease;
}

.modal-overlay.active .modal-card {
  transform: scale(1);
}

.modal-header {
  padding: 1.15rem 1.35rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.modal-body {
  padding: 1.35rem;
}

.modal-footer {
  padding: 1rem 1.35rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.65rem;
  background-color: var(--surface-muted);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  background-color: var(--text-primary);
  color: #FFFFFF;
  padding: 0.75rem 1.15rem;
  border-radius: var(--radius-md);
  font-size: 0.82rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  animation: slide-in-toast 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slide-in-toast {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

.toast.success { border-left: 4px solid var(--status-success); }
.toast.error { border-left: 4px solid var(--status-danger); }
.toast.warning { border-left: 4px solid var(--status-warning); }