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

:root {
  --bg-body: #F2F2F7;
  --bg-hero: #000000;
  
  --card-metal: linear-gradient(135deg, #CFCFCF 0%, #A0A0A0 100%);
  --card-text: #1C1C1E;
  
  --text-dark: #000000;
  --text-light: #FFFFFF;
  --text-grey: #8E8E93;
  
  --success: #34C759;
  
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  
  --radius-hero: 40px;
  --radius-card: 20px;
  --radius-icon: 50%;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-body);
  color: var(--text-dark);
  min-height: 100vh;
  /* Prevent bounce on mobile if needed */
  overscroll-behavior-y: none;
}

#app {
  max-width: 480px; /* Mobile focused default */
  margin: 0 auto;
  background: var(--bg-body);
  min-height: 100vh;
  position: relative;
  padding-bottom: 100px; /* Space for bottom nav */
  box-shadow: 0 0 40px rgba(0,0,0,0.1);
  transition: max-width 0.3s ease;
}

/* --- Hero Section (Black) --- */
.hero-container {
  background-color: var(--bg-hero);
  color: var(--text-light);
  padding: 60px 24px 40px; /* Top padding for status bar area */
  border-bottom-left-radius: var(--radius-hero);
  border-bottom-right-radius: var(--radius-hero);
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.site-logo {
  height: 40px;
  width: auto;
  align-self: flex-start;
  margin-bottom: -12px; /* Pull it a bit closer if needed, or rely on gap */
}

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

.greeting {
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.5px;
}

.hero-actions {
  display: flex;
  gap: 12px;
}

.icon-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #1C1C1E; /* Dark grey for buttons on black */
  border: none;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s;
}

.icon-btn:active { background: #3A3A3C; }

/* New Pill Button Style for Reload Card */
.action-pill-btn {
  height: 44px;
  border-radius: 99px;
  background: #1C1C1E;
  border: none;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 0 20px;
  gap: 8px;
  font-weight: 500;
  font-size: 14px;
  transition: background 0.2s;
}
.action-pill-btn:active { background: #3A3A3C; }

.balance-block {
  margin-top: 8px;
}

.balance-label {
  font-size: 13px;
  color: var(--text-grey);
  margin-bottom: 4px;
}

.balance-amount {
  font-size: 42px;
  font-weight: 600;
  letter-spacing: -1px;
}

/* --- Metal Card --- */
.card-wrapper {
  margin-top: 40px; /* Increased to make room for label */
  width: 100%;
  aspect-ratio: 1.586;
  perspective: 1000px;
  position: relative;
}

.metal-card {
  width: 100%;
  height: 100%;
  background: var(--card-metal);
  border-radius: var(--radius-card);
  position: relative;
  padding: 24px;
  color: var(--card-text);
  box-shadow: 0 10px 30px rgba(0,0,0,0.3);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.3s ease;
  overflow: hidden; /* Ensure overlay doesn't spill */
}

/* Eye Overlay */
.card-eye-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 56px;
  height: 56px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  z-index: 20;
  opacity: 0.7; /* Default visible but subtle */
  transition: all 0.3s ease;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  pointer-events: none; /* Let clicks pass through to card container if needed, but handled by JS on card */
}

.metal-card:hover .card-eye-overlay {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1.1);
  background: rgba(255, 255, 255, 0.25);
}

#card-label {
    transition: opacity 0.3s ease;
}

.card-contactless {
  position: absolute;
  top: 24px;
  right: 24px;
  opacity: 0.6;
}

.card-chip {
  width: 40px;
  height: 28px;
  background: rgba(0,0,0,0.1);
  border-radius: 6px;
  margin-top: 30px;
}

.card-number-hidden {
  font-size: 14px;
  font-family: monospace;
  letter-spacing: 2px;
  margin-top: auto;
  margin-bottom: 24px;
  opacity: 0.7;
}

.card-bottom {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.card-info-group {
  display: flex;
  flex-direction: column;
  gap: 8px; /* Space between last4 and name */
}

.card-last4 {
  font-family: monospace;
  font-size: 15px;
  letter-spacing: 2px;
  opacity: 0.9;
  font-weight: 600;
}

.card-name {
  font-size: 14px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
  opacity: 0.8;
}

.card-logo {
  text-align: right;
  line-height: 1;
}

.visa-text {
  font-size: 24px;
  font-weight: 700;
  font-style: italic;
}

.platinum-text {
  font-size: 10px;
  text-transform: uppercase;
  display: block;
  opacity: 0.7;
  margin-top: 2px;
}

/* --- Card Navigation --- */
.card-nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,0.2);
  border: none;
  color: white;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  backdrop-filter: blur(4px);
}

.card-nav-btn:active {
  background: rgba(255,255,255,0.4);
}

#card-prev-btn { left: -12px; }
#card-next-btn { right: -12px; }

.card-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 16px;
}

.card-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  cursor: pointer;
  transition: all 0.2s;
}

.card-dot.active {
  background: white;
  transform: scale(1.2);
}

/* --- Transactions Section --- */
.transactions-section {
  padding: 32px 24px;
}

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

.section-title {
  font-size: 18px;
  font-weight: 600;
}

.see-all {
  font-size: 14px;
  color: var(--text-grey);
  text-decoration: none;
}

.tx-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.tx-row {
  display: flex;
  align-items: center;
  gap: 16px;
}

.tx-icon-circle {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #E5E5EA; /* Light grey circle */
  display: flex;
  align-items: center;
  justify-content: center;
  color: #000;
  flex-shrink: 0;
  overflow: hidden;
}

.tx-details {
  flex: 1;
}

.tx-title {
  font-size: 16px;
  font-weight: 600;
  color: #000;
  margin-bottom: 2px;
}

.tx-subtitle {
  font-size: 13px;
  color: var(--text-grey);
}

.tx-amount {
  text-align: right;
  font-size: 16px;
  font-weight: 500;
}

.tx-amount.positive { color: var(--success); }
.tx-amount.negative { color: #000; }

/* --- Floating Navigation --- */
.floating-nav {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  background: #1C1C1E; /* Almost black */
  border-radius: 32px;
  padding: 6px;
  display: flex;
  gap: 8px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
  z-index: 100;
}

.nav-item {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #8E8E93;
  cursor: pointer;
  transition: all 0.2s;
  background: transparent;
  border: none;
}

.nav-item.active {
  background: #FFFFFF;
  color: #000000;
}

.nav-item:hover:not(.active) {
  color: #FFFFFF;
}

/* --- Modals (Keep styles functional but updated slightly) --- */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: flex-end; /* Sheet style on mobile */
  justify-content: center;
}

.modal-content {
  width: 100%;
  max-width: 480px;
  background: white;
  border-top-left-radius: 24px;
  border-top-right-radius: 24px;
  padding: 32px 24px 48px;
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}

@media (min-width: 480px) {
  .modal { align-items: center; }
  .modal-content { border-radius: 24px; padding: 32px; }
}

/* Utilities */
.hidden { display: none !important; }
.text-success { color: var(--success); }

/* Login Screen Override */
#login-screen {
  background: #000;
  display: grid;
  place-items: center;
}
.login-box {
  background: #1C1C1E;
  color: white;
  width: 90%;
  max-width: 360px;
  padding: 32px;
  border-radius: 24px;
}
.login-input {
  background: #2C2C2E;
  border: none;
  color: white;
  padding: 16px;
  border-radius: 12px;
  width: 100%;
  margin-bottom: 16px;
  font-size: 16px;
  outline: none;
}
.login-submit {
  background: white;
  color: black;
  width: 100%;
  padding: 16px;
  border-radius: 99px;
  font-weight: 600;
  border: none;
  cursor: pointer;
}

/* --- DESKTOP RESPONSIVE STYLES --- */
@media (min-width: 1024px) {
  #app {
    max-width: 1440px;
    padding: 40px;
    display: flex; /* Flex for alignment */
    flex-direction: column;
    height: 100vh;
    box-shadow: none; /* Remove mobile box shadow */
  }

  /* Grid Layout for Dashboard */
  #card-dashboard {
    display: grid;
    grid-template-columns: 420px 1fr;
    grid-template-rows: auto auto; /* Two rows for left column elements */
    gap: 40px;
    align-items: start;
    height: 100%;
  }

  /* Hero Section (Left Column) */
  .hero-container {
    grid-column: 1;
    grid-row: 1;
    position: relative; /* Reset sticky for now, or manage complex sticky container */
    top: 0;
    border-radius: 32px;
    height: auto;
    min-height: 500px;
    justify-content: flex-start;
  }

  /* Card Wrapper - slightly bigger on desktop */
  .card-wrapper {
    margin-top: 60px;
  }

  /* Transactions Section (Right Column) */
  .transactions-section {
    grid-column: 2;
    grid-row: 1 / span 2; /* Span both hero and nav rows */
    background: white;
    border-radius: 32px;
    padding: 40px;
    height: calc(100vh - 80px); /* Fill remaining height */
    overflow-y: auto; /* Internal scroll */
    box-shadow: 0 4px 24px rgba(0,0,0,0.04);
  }

  /* Navigation (Left Column, Row 2) */
  .floating-nav {
    grid-column: 1;
    grid-row: 2;
    position: static;
    transform: none;
    width: 100%;
    background: transparent;
    box-shadow: none;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: flex-start; /* Align left to match content */
    gap: 16px;
    border-radius: 0;
  }

  /* Desktop Nav Item Styles - Text Buttons */
  .nav-item {
    width: auto;
    height: 48px;
    border-radius: 99px;
    background: white;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    color: #000;
    font-weight: 500;
    padding: 0 24px;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s;
  }

  .nav-item i {
    width: 18px;
    height: 18px;
  }
  
  .nav-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0,0,0,0.1);
  }

  .nav-item.active {
    background: #000;
    color: white;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  }
}

/* Mobile: Hide nav labels */
.nav-label {
  display: none;
}

@media (min-width: 1024px) {
  .nav-label {
    display: inline-block;
  }
}