:root {
  --cf-navy: #0A1628;
  --cf-navy-soft: #142238;
  --cf-teal: #00D4AA;
  --cf-teal-dim: #00B894;
  --cf-gold: #F5A623;
  --cf-success: #00D4AA;
  --cf-error: #FF6B6B;
  --cf-white: #FFFFFF;
  --cf-gray-100: #F7F9FC;
  --cf-gray-200: #E8ECF4;
  --cf-gray-400: #94A3B8;
  --cf-gray-600: #64748B;
  --cf-gray-900: #1E293B;
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background: var(--cf-navy);
  color: var(--cf-white);
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
}

#app {
  min-height: 100vh;
  min-height: 100dvh;
  padding-bottom: calc(80px + env(safe-area-inset-bottom));
}

.cf-container {
  max-width: 480px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  padding-top: calc(1rem + env(safe-area-inset-top));
}

/* Auth Pages */
.cf-auth-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 2rem 1.5rem;
}

.cf-logo {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--cf-teal);
  text-shadow: 0 0 40px rgba(0, 212, 170, 0.4);
  margin-bottom: 0.5rem;
}

.cf-hero-title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--cf-white);
  margin-bottom: 0.5rem;
  text-align: center;
}

.cf-hero-subtitle {
  font-size: 1rem;
  color: var(--cf-gray-400);
  margin-bottom: 2rem;
  text-align: center;
}

.cf-form {
  width: 100%;
  max-width: 360px;
}

.cf-input-group {
  position: relative;
  margin-bottom: 1rem;
}

.cf-input {
  width: 100%;
  padding: 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  background: var(--cf-navy-soft);
  border: 2px solid transparent;
  border-radius: 12px;
  color: var(--cf-white);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.cf-input::placeholder {
  color: var(--cf-gray-600);
}

.cf-input:focus {
  outline: none;
  border-color: var(--cf-teal);
  box-shadow: 0 0 0 4px rgba(0, 212, 170, 0.15);
}

.cf-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem 1.5rem;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  min-height: 52px;
}

.cf-btn:active {
  transform: scale(0.98);
}

.cf-btn-primary {
  width: 100%;
  color: var(--cf-navy);
  background: linear-gradient(135deg, var(--cf-teal) 0%, var(--cf-teal-dim) 100%);
}

.cf-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 212, 170, 0.3);
}

.cf-btn-outline {
  background: transparent;
  border: 2px solid var(--cf-gray-600);
  color: var(--cf-white);
}

.cf-btn-outline:hover {
  border-color: var(--cf-teal);
  color: var(--cf-teal);
}

.cf-btn-sm {
  padding: 0.75rem 1.25rem;
  font-size: 0.875rem;
  min-height: 44px;
}

.cf-auth-switch {
  margin-top: 1.5rem;
  color: var(--cf-gray-400);
  text-align: center;
}

.cf-link {
  color: var(--cf-gold);
  text-decoration: none;
  font-weight: 500;
}

.cf-link:hover {
  text-decoration: underline;
}

.cf-error-msg {
  color: var(--cf-error);
  font-size: 0.875rem;
  margin-bottom: 1rem;
  text-align: center;
}

/* Dashboard */
.cf-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  padding-top: calc(1rem + env(safe-area-inset-top));
}

.cf-header-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--cf-teal);
}

.cf-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cf-teal) 0%, var(--cf-teal-dim) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--cf-navy);
  cursor: pointer;
}

/* Balance Card */
.cf-balance-card {
  position: relative;
  padding: 2rem 1.5rem;
  background: linear-gradient(180deg, rgba(255,255,255,0.08) 0%, rgba(255,255,255,0.02) 100%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 24px;
  backdrop-filter: blur(20px);
  overflow: hidden;
  margin-bottom: 2rem;
}

.cf-balance-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 200%;
  height: 100%;
  background: radial-gradient(ellipse, rgba(0, 212, 170, 0.2) 0%, transparent 60%);
  pointer-events: none;
}

.cf-balance-label {
  display: block;
  font-size: 0.875rem;
  color: var(--cf-gray-400);
  margin-bottom: 0.5rem;
}

.cf-balance-amount {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: var(--cf-white);
  text-shadow: 0 0 40px rgba(0, 212, 170, 0.4);
  letter-spacing: -0.02em;
}

.cf-balance-currency {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  margin-left: 0.5rem;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--cf-teal);
  background: rgba(0, 212, 170, 0.15);
  border-radius: 20px;
  vertical-align: middle;
}

.cf-balance-actions {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

.cf-balance-actions .cf-btn {
  flex: 1;
}

/* Section */
.cf-section {
  margin-bottom: 2rem;
}

.cf-section-title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

/* Transactions */
.cf-transaction-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.cf-transaction {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--cf-navy-soft);
  border-radius: 16px;
  transition: transform 0.15s ease;
  cursor: pointer;
}

.cf-transaction:hover {
  transform: translateX(4px);
}

.cf-transaction-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cf-teal) 0%, var(--cf-teal-dim) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--cf-navy);
  flex-shrink: 0;
}

.cf-transaction-info {
  flex: 1;
  min-width: 0;
}

.cf-transaction-name {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.cf-transaction-note {
  font-size: 0.875rem;
  color: var(--cf-gray-400);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cf-transaction-amount {
  font-family: var(--font-display);
  font-weight: 600;
  text-align: right;
}

.cf-transaction-amount.sent {
  color: var(--cf-error);
}

.cf-transaction-amount.received {
  color: var(--cf-success);
}

.cf-transaction-time {
  font-size: 0.75rem;
  color: var(--cf-gray-600);
  text-align: right;
}

.cf-empty {
  text-align: center;
  padding: 2rem;
  color: var(--cf-gray-400);
}

/* Bottom Navigation */
.cf-bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: calc(72px + env(safe-area-inset-bottom));
  padding-bottom: env(safe-area-inset-bottom);
  background: var(--cf-navy);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-around;
  align-items: center;
  z-index: 99;
}

.cf-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  padding: 0.5rem 1.5rem;
  color: var(--cf-gray-400);
  text-decoration: none;
  cursor: pointer;
  transition: color 0.2s ease;
  min-width: 64px;
}

.cf-nav-item:hover,
.cf-nav-item.active {
  color: var(--cf-teal);
}

.cf-nav-icon {
  font-size: 1.5rem;
}

.cf-nav-label {
  font-size: 0.75rem;
  font-weight: 500;
}

/* Send Page */
.cf-page-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.5rem;
  padding-top: calc(1rem + env(safe-area-inset-top));
}

.cf-back-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--cf-white);
  font-size: 1.5rem;
  cursor: pointer;
}

.cf-page-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
}

.cf-search-results {
  margin-top: 1rem;
}

.cf-user-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  border-radius: 12px;
  cursor: pointer;
  transition: background 0.15s ease;
}

.cf-user-row:hover {
  background: rgba(255, 255, 255, 0.05);
}

.cf-user-row.selected {
  background: rgba(0, 212, 170, 0.1);
  border: 1px solid var(--cf-teal);
}

/* Amount Input */
.cf-amount-section {
  text-align: center;
  padding: 3rem 1.5rem;
}

.cf-amount-input {
  width: 100%;
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 700;
  text-align: center;
  color: var(--cf-white);
  background: transparent;
  border: none;
  caret-color: var(--cf-teal);
}

.cf-amount-input::placeholder {
  color: var(--cf-gray-600);
}

.cf-amount-input:focus {
  outline: none;
}

.cf-available-balance {
  color: var(--cf-gray-400);
  margin-top: 0.5rem;
}

.cf-note-input {
  width: 100%;
  max-width: 300px;
  margin: 1.5rem auto 0;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  text-align: center;
  background: var(--cf-navy-soft);
  border: none;
  border-radius: 8px;
  color: var(--cf-white);
}

.cf-note-input::placeholder {
  color: var(--cf-gray-600);
}

.cf-note-input:focus {
  outline: none;
}

/* Confirm Card */
.cf-confirm-card {
  text-align: center;
  padding: 2rem;
  background: var(--cf-navy-soft);
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  margin: 2rem 1.5rem;
}

.cf-confirm-label {
  font-size: 0.875rem;
  color: var(--cf-gray-400);
  margin-bottom: 1rem;
}

.cf-confirm-amount {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--cf-white);
  margin: 1rem 0;
}

.cf-confirm-note {
  color: var(--cf-gray-400);
  font-style: italic;
}

/* Success Screen */
.cf-success-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 2rem;
  text-align: center;
}

.cf-success-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--cf-success);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  animation: pop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes pop {
  0% { transform: scale(0); opacity: 0; }
  50% { transform: scale(1.2); }
  100% { transform: scale(1); opacity: 1; }
}

.cf-success-title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.cf-success-detail {
  color: var(--cf-gray-400);
  margin-bottom: 2rem;
}

/* Sticky Bottom */
.cf-sticky-bottom {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1rem 1.5rem calc(1rem + env(safe-area-inset-bottom));
  background: linear-gradient(to top, var(--cf-navy) 80%, transparent);
}

/* Toast */
.cf-toast {
  position: fixed;
  bottom: calc(100px + env(safe-area-inset-bottom));
  left: 50%;
  transform: translateX(-50%);
  padding: 0.75rem 1.5rem;
  background: var(--cf-navy-soft);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  color: var(--cf-white);
  font-size: 0.875rem;
  z-index: 200;
  animation: fadeInUp 0.3s ease;
}

.cf-toast.error {
  border-color: var(--cf-error);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

/* Page animations */
.cf-page-enter {
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Loading */
.cf-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  color: var(--cf-gray-400);
}

/* Utility */
.hidden {
  display: none !important;
}

@media (min-width: 480px) {
  .cf-balance-amount {
    font-size: 3.5rem;
  }
  
  .cf-amount-input {
    font-size: 4rem;
  }
}