/* ==========================================================================
   STYLE.CSS - Main Design System
   SYS Wallet Platform
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ==========================================================================
   CSS Variables - Dark Theme
   ========================================================================== */

:root {
  /* Backgrounds */
  --bg-primary: #0f1117;
  --bg-secondary: #1a1d27;
  --bg-tertiary: #242736;
  --bg-card: #1e2130;
  --bg-hover: #2a2d3e;
  --bg-input: #161822;

  /* Text */
  --text-primary: #e4e6f0;
  --text-secondary: #8f93a2;
  --text-muted: #5c5f73;
  --text-heading: #ffffff;

  /* Accent Colors */
  --accent-primary: #6366f1;
  --accent-primary-hover: #818cf8;
  --accent-primary-bg: rgba(99, 102, 241, 0.1);
  --accent-success: #22c55e;
  --accent-success-bg: rgba(34, 197, 94, 0.1);
  --accent-warning: #f59e0b;
  --accent-warning-bg: rgba(245, 158, 11, 0.1);
  --accent-danger: #ef4444;
  --accent-danger-bg: rgba(239, 68, 68, 0.1);
  --accent-info: #3b82f6;
  --accent-info-bg: rgba(59, 130, 246, 0.1);

  /* Borders */
  --border-color: #2a2d3e;
  --border-light: #1e2130;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;

  /* Sidebar */
  --sidebar-width: 260px;
  --sidebar-collapsed: 70px;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

/* ==========================================================================
   Reset & Base Styles
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Firefox scrollbar */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) var(--bg-primary);
}

body {
  font-family: var(--font-family);
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  min-height: 100vh;
  overflow-x: hidden;
}

a {
  color: var(--accent-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--accent-primary-hover);
}

img {
  max-width: 100%;
  display: block;
}

ul, ol {
  list-style: none;
}

/* ==========================================================================
   Layout
   ========================================================================== */

.app-layout {
  display: flex;
  min-height: 100vh;
  width: 100%;
}

/* Sidebar */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: width var(--transition-normal);
  overflow: hidden;
}

.sidebar.collapsed {
  width: var(--sidebar-collapsed);
}

/* Sidebar Logo */
.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--border-color);
  min-height: 68px;
  flex-shrink: 0;
}

.sidebar-logo .logo-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-primary-hover));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  color: #fff;
  flex-shrink: 0;
}

.sidebar-logo .logo-text {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-heading);
  white-space: nowrap;
  letter-spacing: -0.02em;
}

.sidebar.collapsed .logo-text {
  display: none;
}

/* Sidebar Navigation */
.sidebar-nav {
  flex: 1;
  padding: 12px 0;
  overflow-y: auto;
}

.nav-section {
  margin-bottom: 8px;
}

.nav-section-title {
  padding: 8px 20px 6px;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  white-space: nowrap;
}

.sidebar.collapsed .nav-section-title {
  text-align: center;
  padding: 8px 0 6px;
  font-size: 0;
}

.sidebar.collapsed .nav-section-title::after {
  content: '\2022';
  font-size: 10px;
  color: var(--text-muted);
}

.nav-divider {
  height: 1px;
  background: var(--border-color);
  margin: 8px 16px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 20px;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  border-left: 3px solid transparent;
  transition: all var(--transition-fast);
  cursor: pointer;
  white-space: nowrap;
  position: relative;
}

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

.nav-link.active {
  color: var(--accent-primary);
  background: var(--accent-primary-bg);
  border-left-color: var(--accent-primary);
}

.nav-link .nav-icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 16px;
}

.nav-link .nav-label {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav-link .nav-badge {
  font-size: 10px;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: var(--radius-full);
  background: var(--accent-danger);
  color: #fff;
  min-width: 18px;
  text-align: center;
}

.sidebar.collapsed .nav-label,
.sidebar.collapsed .nav-badge {
  display: none;
}

.sidebar.collapsed .nav-link {
  justify-content: center;
  padding: 10px 0;
  border-left: none;
}

.sidebar.collapsed .nav-link.active {
  border-left: none;
  background: var(--accent-primary-bg);
}

/* Sidebar User Info */
.sidebar-user {
  padding: 16px 20px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.sidebar-user .user-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--accent-primary), #a855f7);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  flex-shrink: 0;
}

.sidebar-user .user-info {
  flex: 1;
  min-width: 0;
}

.sidebar-user .user-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-user .user-role {
  font-size: 11px;
  color: var(--text-muted);
}

.sidebar.collapsed .user-info {
  display: none;
}

/* Main Content */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  padding: 24px 32px;
  min-height: 100vh;
  transition: margin-left var(--transition-normal);
}

.sidebar.collapsed ~ .main-content {
  margin-left: var(--sidebar-collapsed);
}

/* Page Header */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
  gap: 16px;
  flex-wrap: wrap;
}

.page-header .page-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-heading);
  letter-spacing: -0.02em;
}

.page-header .page-subtitle {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 2px;
}

.page-header .page-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Content Grid */
.content-grid {
  display: grid;
  gap: 20px;
}

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

.content-grid.cols-3 {
  grid-template-columns: repeat(3, 1fr);
}

.content-grid.cols-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* ==========================================================================
   Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  color: var(--text-heading);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

h1 { font-size: 28px; font-weight: 700; }
h2 { font-size: 22px; }
h3 { font-size: 18px; }
h4 { font-size: 16px; }
h5 { font-size: 14px; }
h6 { font-size: 12px; text-transform: uppercase; letter-spacing: 0.05em; }

p {
  color: var(--text-secondary);
  line-height: 1.7;
}

.text-primary { color: var(--text-primary) !important; }
.text-secondary { color: var(--text-secondary) !important; }
.text-muted { color: var(--text-muted) !important; }
.text-accent { color: var(--accent-primary) !important; }
.text-success { color: var(--accent-success) !important; }
.text-danger { color: var(--accent-danger) !important; }
.text-warning { color: var(--accent-warning) !important; }
.text-info { color: var(--accent-info) !important; }
.text-white { color: #ffffff !important; }

.font-mono {
  font-family: var(--font-mono);
  font-size: 13px;
}

.font-bold { font-weight: 600; }
.font-semibold { font-weight: 500; }
.font-light { font-weight: 300; }

.text-xs { font-size: 11px; }
.text-sm { font-size: 12px; }
.text-base { font-size: 14px; }
.text-lg { font-size: 16px; }
.text-xl { font-size: 20px; }
.text-2xl { font-size: 24px; }
.text-3xl { font-size: 30px; }

/* ==========================================================================
   Utility Classes
   ========================================================================== */

/* Flexbox */
.flex { display: flex; }
.flex-col { display: flex; flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.gap-xs { gap: 4px; }
.gap-sm { gap: 8px; }
.gap-md { gap: 16px; }
.gap-lg { gap: 24px; }
.gap-xl { gap: 32px; }

/* Spacing - Margin */
.mt-xs { margin-top: 4px; }
.mt-sm { margin-top: 8px; }
.mt-md { margin-top: 16px; }
.mt-lg { margin-top: 24px; }
.mt-xl { margin-top: 32px; }

.mb-xs { margin-bottom: 4px; }
.mb-sm { margin-bottom: 8px; }
.mb-md { margin-bottom: 16px; }
.mb-lg { margin-bottom: 24px; }
.mb-xl { margin-bottom: 32px; }

.ml-auto { margin-left: auto; }
.mr-auto { margin-right: auto; }

/* Spacing - Padding */
.p-xs { padding: 4px; }
.p-sm { padding: 8px; }
.p-md { padding: 16px; }
.p-lg { padding: 24px; }
.p-xl { padding: 32px; }

.px-sm { padding-left: 8px; padding-right: 8px; }
.px-md { padding-left: 16px; padding-right: 16px; }
.px-lg { padding-left: 24px; padding-right: 24px; }

.py-sm { padding-top: 8px; padding-bottom: 8px; }
.py-md { padding-top: 16px; padding-bottom: 16px; }
.py-lg { padding-top: 24px; padding-bottom: 24px; }

/* Text Alignment */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

/* Visibility */
.hidden { display: none !important; }
.visible { display: block !important; }
.invisible { visibility: hidden; }
.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }

/* Width */
.w-full { width: 100%; }
.w-auto { width: auto; }
.max-w-sm { max-width: 480px; }
.max-w-md { max-width: 640px; }
.max-w-lg { max-width: 960px; }
.max-w-xl { max-width: 1200px; }

/* Overflow */
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }

/* Text Utilities */
.truncate {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.uppercase { text-transform: uppercase; }
.capitalize { text-transform: capitalize; }
.no-wrap { white-space: nowrap; }

/* Copy Text (for wallet addresses) */
.copy-text {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-primary);
  cursor: pointer;
  padding: 2px 4px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  position: relative;
}

.copy-text::after {
  content: '\1F4CB';
  font-size: 12px;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.copy-text:hover {
  background: var(--bg-tertiary);
}

.copy-text:hover::after {
  opacity: 0.6;
}

.copy-text.copied::after {
  content: '\2713';
  color: var(--accent-success);
  opacity: 1;
}

/* Border Utilities */
.border { border: 1px solid var(--border-color); }
.border-top { border-top: 1px solid var(--border-color); }
.border-bottom { border-bottom: 1px solid var(--border-color); }
.rounded-sm { border-radius: var(--radius-sm); }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-full { border-radius: var(--radius-full); }

/* Background Utilities */
.bg-primary { background-color: var(--bg-primary); }
.bg-secondary { background-color: var(--bg-secondary); }
.bg-tertiary { background-color: var(--bg-tertiary); }
.bg-card { background-color: var(--bg-card); }

/* Cursor */
.cursor-pointer { cursor: pointer; }
.cursor-default { cursor: default; }

/* Position */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; top: 0; z-index: 10; }

/* Selection */
::selection {
  background: var(--accent-primary);
  color: #fff;
}

/* Focus Visible */
:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

/* ==========================================================================
   Animations
   ========================================================================== */

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

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

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

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.animate-fade-in { animation: fadeIn 0.3s ease forwards; }
.animate-slide-up { animation: slideUp 0.3s ease forwards; }
.animate-slide-down { animation: slideDown 0.3s ease forwards; }
.animate-spin { animation: spin 1s linear infinite; }
.animate-pulse { animation: pulse 2s ease-in-out infinite; }