/* ============================================================================
 * Continuity Wallet - Stylesheet
 * ============================================================================
 * Developer:     Kevin McNamara
 * Company:       Mjolnir Photonics
 * Copyright:     © Mjolnir Photonics 2025. All Rights Reserved.
 * ============================================================================
 */

/* CSS Variables for theming */
:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-tertiary: #ffffff;
  --bg-card: #ffffff;
  --bg-elevated: #ffffff;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-tertiary: #94a3b8;
  --border-primary: #e2e8f0;
  --border-secondary: #cbd5e1;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --accent-primary: #3b82f6;
  --accent-secondary: #8b5cf6;
  --accent-success: #10b981;
  --accent-warning: #f59e0b;
  --accent-danger: #ef4444;
  --accent-info: #06b6d4;
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gradient-success: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --bg-card: #1e293b;
  --bg-elevated: #334155;
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-tertiary: #64748b;
  --border-primary: #334155;
  --border-secondary: #475569;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.4);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.4);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', 'Roboto', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  transition: var(--transition);
  min-height: 100vh;
}

/* Header Styles */
header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-primary);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
}

.header-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-section {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo {
  font-size: 1.75rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo-badge {
  background: var(--accent-success);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.theme-toggle {
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  padding: 0.5rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
}

.theme-toggle:hover {
  background: var(--bg-elevated);
  transform: scale(1.05);
}

.btn {
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.875rem;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}

.btn-primary {
  background: var(--accent-primary);
  color: white;
}

.btn-primary:hover {
  background: #2563eb;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-primary);
}

.btn-ghost:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

/* Container */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem;
}

/* Navigation Tabs */
.nav-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2rem;
  background: var(--bg-secondary);
  padding: 0.5rem;
  border-radius: var(--radius-lg);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.nav-tab {
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--text-secondary);
  border: none;
  cursor: pointer;
  font-weight: 500;
  font-size: 0.9375rem;
  transition: var(--transition);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-tab:hover {
  background: var(--bg-elevated);
  color: var(--text-primary);
}

.nav-tab.active {
  background: var(--bg-card);
  color: var(--accent-primary);
  box-shadow: var(--shadow-sm);
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--bg-card);
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-primary);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: var(--transition);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-primary);
}

.stat-card:hover::before {
  opacity: 1;
}

.stat-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  background: var(--bg-secondary);
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.stat-label {
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
}

.stat-change {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.875rem;
  font-weight: 600;
  margin-top: 0.5rem;
}

.stat-change.positive { color: var(--accent-success); }
.stat-change.negative { color: var(--accent-danger); }

/* Section */
.section {
  display: none;
  animation: fadeIn 0.3s ease;
}

.section.active {
  display: block;
}

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

@keyframes fadeOut {
  from { opacity: 1; }
  to { opacity: 0; }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-primary);
}

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

/* Balance Display */
.balance-display {
  text-align: center;
  padding: 3rem 2rem;
  background: var(--gradient-primary);
  border-radius: var(--radius-xl);
  color: white;
  margin-bottom: 2rem;
  position: relative;
  overflow: hidden;
}

.balance-display::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
  animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.5; }
  50% { transform: scale(1.1); opacity: 0.8; }
}

.balance-value {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  position: relative;
  z-index: 1;
}

.balance-label {
  font-size: 1rem;
  opacity: 0.9;
  position: relative;
  z-index: 1;
}

.balance-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
  position: relative;
  z-index: 1;
}

.balance-actions .btn {
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.balance-actions .btn:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* Flow Steps */
.flow-steps {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.flow-step {
  display: flex;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-primary);
  transition: var(--transition);
  position: relative;
}

.flow-step:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 2rem;
  bottom: -1rem;
  width: 2px;
  height: 1rem;
  background: var(--border-secondary);
}

.flow-step:hover {
  background: var(--bg-elevated);
  transform: translateX(4px);
}

.step-number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.125rem;
  flex-shrink: 0;
}

.step-content {
  flex: 1;
}

.step-title {
  font-weight: 600;
  font-size: 1.0625rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.step-description {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* Code Block */
.code-block {
  background: #1e293b;
  color: #e2e8f0;
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  overflow-x: auto;
  font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Courier New', monospace;
  font-size: 0.875rem;
  line-height: 1.7;
  margin: 1.5rem 0;
  border: 1px solid #334155;
}

/* Table */
.table-container {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-primary);
  overflow: hidden;
}

table {
  width: 100%;
  border-collapse: collapse;
}

thead {
  background: var(--bg-secondary);
}

th {
  padding: 1rem 1.5rem;
  text-align: left;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border-primary);
}

td {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border-primary);
  color: var(--text-primary);
}

tbody tr {
  transition: var(--transition);
}

tbody tr:hover {
  background: var(--bg-secondary);
}

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

/* Status Badge */
.status-badge {
  padding: 0.375rem 0.875rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
}

.status-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.status-badge.completed {
  background: rgba(16, 185, 129, 0.1);
  color: var(--accent-success);
}

.status-badge.pending {
  background: rgba(245, 158, 11, 0.1);
  color: var(--accent-warning);
}

.status-badge.failed {
  background: rgba(239, 68, 68, 0.1);
  color: var(--accent-danger);
}

/* Transaction Type */
.tx-type {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.tx-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.tx-icon.receive {
  background: rgba(16, 185, 129, 0.1);
  color: var(--accent-success);
}

.tx-icon.send {
  background: rgba(239, 68, 68, 0.1);
  color: var(--accent-danger);
}

/* Amount */
.amount {
  font-family: 'SF Mono', monospace;
  font-weight: 600;
  font-size: 0.9375rem;
}

.amount.positive { color: var(--accent-success); }
.amount.negative { color: var(--accent-danger); }

/* Alert Box */
.alert {
  padding: 1.25rem;
  border-radius: var(--radius-lg);
  margin-bottom: 1.5rem;
  display: flex;
  gap: 1rem;
  border-left: 4px solid;
}

.alert-info {
  background: rgba(6, 182, 212, 0.1);
  border-color: var(--accent-info);
  color: var(--text-primary);
}

.alert-success {
  background: rgba(16, 185, 129, 0.1);
  border-color: var(--accent-success);
  color: var(--text-primary);
}

.alert-warning {
  background: rgba(245, 158, 11, 0.1);
  border-color: var(--accent-warning);
  color: var(--text-primary);
}

.alert-danger {
  background: rgba(239, 68, 68, 0.1);
  border-color: var(--accent-danger);
  color: var(--text-primary);
}

.alert-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.alert-content {
  flex: 1;
}

.alert-title {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.alert-message {
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

/* Feature Grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.feature-card {
  padding: 1.5rem;
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-primary);
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-primary);
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--gradient-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 1rem;
}

.feature-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.feature-description {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* Footer */
footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border-primary);
  margin-top: 4rem;
  padding: 3rem 0;
}

.footer-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  text-align: center;
}

.footer-text {
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.footer-link {
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition);
  font-size: 0.875rem;
}

.footer-link:hover {
  color: var(--accent-primary);
}

/* Login Overlay */
.login-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  animation: fadeIn 0.3s ease;
}

.login-overlay.hidden {
  display: none;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.login-container {
  width: 90%;
  max-width: 450px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  border: 1px solid var(--border-primary);
  animation: slideUp 0.4s ease;
}

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

.login-header {
  padding: 2rem 2rem 1.5rem 2rem;
  text-align: center;
  border-bottom: 1px solid var(--border-primary);
}

.login-logo {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.login-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.login-subtitle {
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.login-step {
  padding: 2rem;
  display: none;
}

.login-step.active {
  display: block;
}

.login-step form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.login-mfa-icon {
  font-size: 4rem;
  text-align: center;
  margin-bottom: 1rem;
}

.login-mfa-text {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.login-error {
  padding: 0.75rem 1rem;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid var(--accent-danger);
  border-radius: var(--radius-md);
  color: var(--accent-danger);
  font-size: 0.875rem;
  display: none;
}

.login-error.show {
  display: block;
}

.btn-block {
  width: 100%;
}

.login-footer {
  padding: 1.5rem 2rem;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-primary);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.login-demo-hint {
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-align: center;
  line-height: 1.8;
}

.login-demo-hint code {
  background: var(--code-bg);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  font-family: 'SF Mono', monospace;
  font-size: 0.8125rem;
  color: var(--accent-primary);
  font-weight: 600;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-10px); }
  20%, 40%, 60%, 80% { transform: translateX(10px); }
}

@keyframes fadeOut {
  from { opacity: 1; }
  to { opacity: 0; }
}

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

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

/* Responsive */
@media (max-width: 768px) {
  .container {
    padding: 1rem;
  }

  .header-content {
    padding: 1rem;
    flex-direction: column;
    gap: 1rem;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }

  .balance-value {
    font-size: 2.5rem;
  }

  .nav-tabs {
    overflow-x: auto;
  }

  .table-container {
    overflow-x: auto;
  }

  table {
    min-width: 600px;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }
}

/* Utility Classes */
.text-center { text-align: center; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.flex { display: flex; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }

/* Camera Overlay Instruction Animation */
@keyframes fadeInScale {
  from {
    opacity: 0;
    transform: translateX(-50%) scale(0.9);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) scale(1);
  }
}

/* Pulsing animation for emphasis */
@keyframes pulse {
  0%, 100% {
    border-color: rgba(100, 200, 255, 0.5);
  }
  50% {
    border-color: rgba(100, 200, 255, 0.9);
  }
}

#biometric-camera-overlay-instruction {
  animation: fadeInScale 0.4s ease-out, pulse 2s ease-in-out infinite;
}