/* 
  xpaiements.com Premium Style System 
  Author: Antigravity
  Theme: Dark Mode First, Neon Cyan/Purple Accents
*/

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --bg-color: #06070a;
  --card-bg: rgba(17, 19, 28, 0.75);
  --card-border: rgba(255, 255, 255, 0.06);
  --card-hover-border: rgba(0, 210, 255, 0.3);
  
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #4b5563;
  
  --accent-cyan: #00d2ff;
  --accent-purple: #7928ca;
  --accent-pink: #ff007a;
  
  --accent-glow: rgba(0, 210, 255, 0.2);
  --purple-glow: rgba(121, 40, 202, 0.2);
  
  --green-success: #10b981;
  --red-error: #ef4444;
  
  --header-h: 75px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
}

[data-theme="light"] {
  --bg-color: #f6f8fb;
  --card-bg: rgba(255, 255, 255, 0.9);
  --card-border: rgba(0, 0, 0, 0.06);
  --card-hover-border: rgba(121, 40, 202, 0.3);
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --accent-glow: rgba(0, 210, 255, 0.1);
  --purple-glow: rgba(121, 40, 202, 0.1);
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-body);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
  transition: background-color 0.3s ease, color 0.3s ease;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* Header */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(var(--bg-color), 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--card-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 3rem;
  transition: background 0.3s ease, border-bottom 0.3s ease;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: inherit;
}

.logo-icon {
  font-size: 1.8rem;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 10px var(--accent-glow));
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

.nav-link:hover {
  color: var(--accent-cyan);
  background: rgba(0, 210, 255, 0.04);
}

.nav-link.active {
  color: var(--accent-cyan);
  background: var(--accent-glow);
  border: 1px solid rgba(0, 210, 255, 0.2);
}

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

.theme-toggle, .lang-toggle {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.theme-toggle:hover, .lang-toggle:hover {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 8px var(--accent-glow);
  transform: translateY(-2px);
}

.lang-toggle {
  font-weight: 700;
  font-size: 0.85rem;
  font-family: var(--font-display);
  border-radius: 8px;
  width: auto;
  padding: 0 0.85rem;
}

/* Container */
.app-content {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

/* Sections */
.tab-section {
  display: none;
}

.tab-section.active {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  animation: fadeIn 0.3s ease-in-out;
}

/* Card layout */
.portal-card {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--card-border);
  border-radius: 18px;
  padding: 2.2rem;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
}

.portal-card:hover {
  border-color: var(--card-hover-border);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.card-header {
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--card-border);
  padding-bottom: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-title {
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.card-title i {
  color: var(--accent-cyan);
}

/* Grid splits */
.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
}

@media (max-width: 768px) {
  .split-grid {
    grid-template-columns: 1fr;
  }
  header {
    padding: 0 1rem;
  }
  .nav-menu {
    display: none; /* Mobile navigation toggle can be integrated, or simplified */
  }
}

/* Forms styling */
.input-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.input-group label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 600;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-prefix {
  position: absolute;
  left: 1rem;
  color: var(--text-muted);
  font-weight: 700;
}

.input-field {
  width: 100%;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--card-border);
  color: var(--text-primary);
  padding: 0.85rem 1rem 0.85rem 2.2rem;
  border-radius: 10px;
  font-size: 1rem;
  font-family: var(--font-body);
  transition: all 0.2s ease;
}

.input-field:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.select-field {
  padding-left: 1rem;
}

/* Buttons */
.btn-primary {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  color: #fff;
  border: none;
  padding: 0.85rem 2rem;
  border-radius: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  justify-content: center;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 15px rgba(0, 210, 255, 0.4);
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--accent-cyan);
  color: var(--accent-cyan);
}

.btn-secondary:hover {
  background: var(--accent-glow);
  box-shadow: 0 0 10px var(--accent-glow);
}

/* Simulated Checkout Widget */
.checkout-widget {
  background: #0c0e16;
  border: 1px solid rgba(0, 210, 255, 0.15);
  border-radius: 16px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  box-shadow: 0 0 30px rgba(0,0,0,0.4);
}

.checkout-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  padding-bottom: 1rem;
}

.merchant-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
}

.coin-selectors {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

.coin-option {
  border: 1px solid var(--card-border);
  background: rgba(255, 255, 255, 0.02);
  border-radius: 10px;
  padding: 0.75rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
}

.coin-option:hover {
  border-color: var(--accent-cyan);
  background: var(--accent-glow);
}

.coin-option.active {
  border-color: var(--accent-cyan);
  background: var(--accent-glow);
  box-shadow: 0 0 10px var(--accent-glow);
}

.coin-icon {
  font-size: 1.5rem;
}

.coin-option.btc .coin-icon { color: #f7931a; }
.coin-option.eth .coin-icon { color: #627eea; }
.coin-option.usdt .coin-icon { color: #26a17b; }

.qr-section {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--card-border);
  padding: 1rem;
  border-radius: 10px;
}

.qr-code {
  background: #fff;
  width: 100px;
  height: 100px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 4px solid #fff;
}

.qr-code img {
  width: 100%;
  height: 100%;
}

.payment-details {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.85rem;
}

.payment-address {
  font-family: monospace;
  background: rgba(255,255,255,0.05);
  padding: 0.3rem 0.6rem;
  border-radius: 4px;
  margin-top: 0.25rem;
  word-break: break-all;
  font-size: 0.75rem;
}

/* Payment Status Indicator */
.status-indicator {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--card-border);
  padding: 0.75rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
}

.status-indicator.pending {
  color: var(--accent-cyan);
}

.status-indicator.confirming {
  color: var(--accent-purple);
}

.status-indicator.success {
  color: var(--green-success);
  background: rgba(16, 185, 129, 0.05);
  border-color: rgba(16, 185, 129, 0.2);
}

/* Merchant Analytics dashboard elements */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-bottom: 2rem;
}

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

.stat-box {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-val {
  font-size: 1.8rem;
  font-weight: 700;
  font-family: var(--font-display);
  background: linear-gradient(135deg, #fff 40%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Analytics Graph Canvas */
.graph-container {
  height: 280px;
  width: 100%;
  position: relative;
  margin-top: 1rem;
}

/* Transactions Table */
.table-container {
  overflow-x: auto;
  margin-top: 1rem;
}

.trans-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}

.trans-table th {
  border-bottom: 1px solid var(--card-border);
  padding: 0.75rem;
  color: var(--text-secondary);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

.trans-table td {
  border-bottom: 1px solid rgba(255,255,255,0.03);
  padding: 0.75rem;
  color: var(--text-primary);
}

.badge-status {
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 700;
}

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

.badge-status.processing {
  background: rgba(0, 210, 255, 0.1);
  color: var(--accent-cyan);
}

/* Developer Docs list styles */
.docs-step {
  display: flex;
  gap: 1.5rem;
  background: rgba(255, 255, 255, 0.01);
  border: 1px solid var(--card-border);
  padding: 1.5rem;
  border-radius: 12px;
  margin-bottom: 1.5rem;
  align-items: flex-start;
}

.docs-step-num {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 0 10px var(--accent-glow);
}

.docs-step-content {
  flex: 1;
}

.docs-code-box {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 1rem;
  font-family: monospace;
  font-size: 0.85rem;
  color: var(--text-primary);
  margin-top: 0.75rem;
  overflow-x: auto;
}

/* Footer */
footer {
  border-top: 1px solid var(--card-border);
  background: rgba(0, 0, 0, 0.4);
  padding: 3rem;
  text-align: center;
  margin-top: 4rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  list-style: none;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--accent-cyan);
}

.footer-text {
  font-size: 0.8rem;
  color: var(--text-muted);
}

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