/* Credit Card Tracker - Modern & Colorful Theme */

:root {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-card: #334155;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --accent-blue: #3b82f6;
  --accent-green: #22c55e;
  --accent-purple: #8b5cf6;
  --accent-orange: #f97316;
  --border-color: #475569;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --radius: 12px;
}

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

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

/* Navigation */
.navbar {
  background: var(--bg-secondary);
  padding: 1rem 2rem;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border-color);
}

.navbar-content {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
  padding: 0.5rem 1rem;
  border-radius: 8px;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
  background: var(--bg-card);
}

/* Sub-Navigation (for My Cards sub-pages) */
.sub-navbar {
  background: var(--bg-primary);
  padding: 0.75rem 2rem;
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 60px;
  z-index: 99;
}

.sub-navbar-content {
  max-width: 1400px;
  margin: 0 auto;
}

.sub-nav-links {
  display: flex;
  gap: 0.5rem;
  list-style: none;
}

.sub-nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  transition: all 0.2s;
  border: 1px solid transparent;
}

.sub-nav-links a:hover {
  color: var(--text-primary);
  background: var(--bg-secondary);
}

.sub-nav-links a.active {
  color: var(--accent-blue);
  background: rgba(59, 130, 246, 0.1);
  border-color: var(--accent-blue);
}

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

/* Hero Section */
.hero {
  text-align: center;
  padding: 4rem 2rem;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  border-radius: var(--radius);
  margin-bottom: 3rem;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--text-primary), var(--accent-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Stats Bar */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.stat-card {
  background: var(--bg-secondary);
  padding: 1.5rem;
  border-radius: var(--radius);
  text-align: center;
  border: 1px solid var(--border-color);
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-blue);
}

.stat-label {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

/* Card Grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 1.5rem;
}

/* Credit Card Display */
.credit-card {
  background: var(--bg-secondary);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
  border: 1px solid var(--border-color);
}

.credit-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.card-header {
  padding: 1.5rem;
  color: white;
  position: relative;
}

.card-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: rgba(255,255,255,0.3);
}

.card-issuer {
  font-size: 0.75rem;
  opacity: 0.8;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.card-name {
  font-size: 1.25rem;
  font-weight: 700;
  margin-top: 0.25rem;
}

.card-body {
  padding: 1.5rem;
}

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

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

.fee-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-orange);
}

/* Earning Rates */
.earning-rates {
  margin-bottom: 1rem;
}

.earning-rates h4 {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.75rem;
}

.rate-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
  border-bottom: 1px dashed var(--border-color);
}

.rate-item:last-child {
  border-bottom: none;
}

.rate-category {
  font-size: 0.875rem;
}

.rate-multiplier {
  font-weight: 700;
  color: var(--accent-green);
  background: rgba(34, 197, 94, 0.1);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.875rem;
}

/* Credits Section */
.credits-section {
  margin-top: 1rem;
}

.credit-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem;
  background: var(--bg-card);
  border-radius: 8px;
  margin-bottom: 0.5rem;
}

.credit-name {
  font-size: 0.875rem;
}

.credit-value {
  font-weight: 600;
  color: var(--accent-blue);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
  font-size: 0.875rem;
}

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

.btn-primary:hover {
  background: #2563eb;
}

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

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

.btn-full {
  width: 100%;
  margin-top: 1rem;
}

/* Benefit Tracker */
.tracker-card {
  background: var(--bg-secondary);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  border: 1px solid var(--border-color);
}

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

.tracker-title {
  font-size: 1.25rem;
  font-weight: 600;
}

.tracker-progress {
  font-size: 0.875rem;
  color: var(--accent-green);
}

.benefit-checklist {
  list-style: none;
}

.benefit-item {
  display: flex;
  align-items: center;
  padding: 1rem;
  background: var(--bg-card);
  border-radius: 8px;
  margin-bottom: 0.75rem;
  cursor: pointer;
  transition: all 0.2s;
}

.benefit-item:hover {
  background: var(--border-color);
}

.benefit-item.completed {
  opacity: 0.6;
}

.benefit-item.completed .benefit-text {
  text-decoration: line-through;
}

.benefit-checkbox {
  width: 24px;
  height: 24px;
  border: 2px solid var(--border-color);
  border-radius: 6px;
  margin-right: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.2s;
}

.benefit-item.completed .benefit-checkbox {
  background: var(--accent-green);
  border-color: var(--accent-green);
}

.benefit-checkbox::after {
  content: '✓';
  color: white;
  font-weight: bold;
  opacity: 0;
  transition: opacity 0.2s;
}

.benefit-item.completed .benefit-checkbox::after {
  opacity: 1;
}

.benefit-content {
  flex: 1;
}

.benefit-text {
  font-weight: 500;
}

.benefit-description {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

.benefit-value {
  font-weight: 600;
  color: var(--accent-blue);
  margin-left: 1rem;
}

/* Progress Bar */
.progress-container {
  margin-top: 1rem;
}

.progress-bar {
  height: 8px;
  background: var(--bg-card);
  border-radius: 4px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
  border-radius: 4px;
  transition: width 0.3s ease;
}

.progress-text {
  display: flex;
  justify-content: space-between;
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* Comparison Table */
.comparison-container {
  overflow-x: auto;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  overflow: hidden;
}

.comparison-table th,
.comparison-table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
  background: var(--bg-card);
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.comparison-table td {
  font-size: 0.875rem;
}

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

/* Filter Bar */
.filter-bar {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.5rem 1rem;
  border-radius: 20px;
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
  font-size: 0.875rem;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
  color: white;
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
}

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

.modal {
  background: var(--bg-secondary);
  border-radius: var(--radius);
  max-width: 600px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  padding: 2rem;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Tabs */
.tabs {
  display: flex;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 1.5rem;
}

.tab {
  padding: 1rem 1.5rem;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  font-weight: 500;
  position: relative;
  transition: color 0.2s;
}

.tab:hover,
.tab.active {
  color: var(--text-primary);
}

.tab.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent-blue);
}

/* Responsive */
@media (max-width: 768px) {
  /* Keep navbar in single row on mobile */
  .navbar {
    padding: 0.75rem 1rem;
  }

  .navbar-content {
    flex-direction: row;
    gap: 0.5rem;
  }

  .logo {
    font-size: 1.1rem;
  }

  .nav-links {
    gap: 0.25rem;
    flex-wrap: nowrap;
  }

  .nav-links a {
    padding: 0.4rem 0.6rem;
    font-size: 0.8rem;
  }

  .sub-navbar {
    padding: 0.5rem 1rem;
    position: sticky;
    top: 49px; /* Height of mobile navbar */
    z-index: 99;
  }

  .sub-nav-links {
    flex-wrap: nowrap;
    justify-content: flex-start;
    gap: 0.25rem;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .sub-nav-links a {
    font-size: 0.75rem;
    padding: 0.4rem 0.6rem;
    white-space: nowrap;
  }

  .hero h1 {
    font-size: 2rem;
  }

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

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

  /* Card settings on mobile */
  .my-card-settings .date-picker-group {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .month-day-year-picker select {
    padding: 0.35rem 0.5rem;
    font-size: 0.75rem;
  }
}

/* Credit Card Visual Component */
.card-visual {
  width: 85px;
  height: 54px;
  border-radius: 6px;
  position: relative;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 6px 8px;
  overflow: hidden;
}

.card-visual::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, transparent 50%);
  pointer-events: none;
}

.card-visual .card-logo {
  font-size: 0.5rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.9);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.card-visual .card-chip {
  width: 16px;
  height: 12px;
  background: linear-gradient(135deg, #ffd700 0%, #c5a300 100%);
  border-radius: 2px;
  position: absolute;
  left: 8px;
  top: 50%;
  transform: translateY(-50%);
}

.card-visual .card-network {
  font-size: 0.45rem;
  color: rgba(255, 255, 255, 0.8);
  text-align: right;
  align-self: flex-end;
  font-weight: 600;
}

/* Card issuer-specific styles */
.card-visual.chase {
  background: linear-gradient(135deg, #004879 0%, #003366 100%);
}

.card-visual.amex {
  background: linear-gradient(135deg, #006FCF 0%, #004B87 100%);
}

.card-visual.capital-one {
  background: linear-gradient(135deg, #D03027 0%, #8B0000 100%);
}

.card-visual.citi {
  background: linear-gradient(135deg, #1B3668 0%, #0D1F3C 100%);
}

.card-visual.bilt {
  background: linear-gradient(135deg, #1a1a1a 0%, #333333 100%);
}

.card-visual.discover {
  background: linear-gradient(135deg, #FF6B00 0%, #CC5500 100%);
}

.card-visual.wells-fargo {
  background: linear-gradient(135deg, #B71C1C 0%, #8B0000 100%);
}

.card-visual.us-bank {
  background: linear-gradient(135deg, #0033A0 0%, #001F5C 100%);
}

.card-visual.barclays {
  background: linear-gradient(135deg, #00AEEF 0%, #0072CE 100%);
}

.card-visual.bofa {
  background: linear-gradient(135deg, #E31837 0%, #9B1026 100%);
}

/* Metal card effect for premium cards */
.card-visual.metal {
  background: linear-gradient(135deg, #3a3a3a 0%, #5a5a5a 50%, #3a3a3a 100%);
}

.card-visual.metal::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.1) 50%, transparent 100%);
  pointer-events: none;
}

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

.fade-in {
  animation: fadeIn 0.3s ease forwards;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-muted { color: var(--text-secondary); }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mt-2 { margin-top: 1rem; }
.flex { display: flex; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }