/* =====================================================
   OnChain Wallet — Design System & Styles
   ===================================================== */

/* ---- Google Fonts already loaded via <link> ---- */

/* =====================================================
   1. CSS CUSTOM PROPERTIES (Design Tokens)
   ===================================================== */
:root {
  /* Core palette — dark */
  --bg-base:        #0a0c12;
  --bg-surface:     #0f1117;
  --bg-elevated:    #161822;
  --bg-overlay:     rgba(255,255,255,0.04);

  /* Glass */
  --glass-bg:       rgba(22, 24, 34, 0.72);
  --glass-border:   rgba(255,255,255,0.08);
  --glass-shadow:   0 8px 40px rgba(0,0,0,0.45);
  --glass-blur:     20px;

  /* Brand */
  --accent:         #7c5cfc;
  --accent-light:   #9b82fd;
  --accent-dark:    #5a3fe8;
  --accent-glow:    rgba(124, 92, 252, 0.35);
  --accent-subtle:  rgba(124, 92, 252, 0.12);

  /* Semantic */
  --success:        #22d3a0;
  --success-subtle: rgba(34, 211, 160, 0.12);
  --danger:         #f44c7f;
  --danger-subtle:  rgba(244, 76, 127, 0.12);
  --warning:        #f5a623;
  --warning-subtle: rgba(245, 166, 35, 0.12);
  --info:           #38bdf8;
  --info-subtle:    rgba(56, 189, 248, 0.12);
  --neutral:        #64748b;

  /* Typography */
  --text-primary:   #f0f2f8;
  --text-secondary: #8892a4;
  --text-muted:     #505870;
  --text-inverse:   #0a0c12;

  /* Sizing */
  --sidebar-width:  240px;
  --header-h:       64px;
  --radius-sm:      8px;
  --radius-md:      14px;
  --radius-lg:      20px;
  --radius-xl:      28px;
  --radius-full:    9999px;

  /* Transitions */
  --transition:     0.22s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);

  /* ETH / BTC / USDC colours */
  --eth-color:  #627eea;
  --btc-color:  #f7931a;
  --usdc-color: #2775ca;
  --gas-color:  #f44c7f;
}

/* ---- Light Mode Overrides ---- */
[data-theme="light"] {
  --bg-base:        #f0f2f8;
  --bg-surface:     #f8f9fd;
  --bg-elevated:    #ffffff;
  --bg-overlay:     rgba(0,0,0,0.03);

  --glass-bg:       rgba(255, 255, 255, 0.78);
  --glass-border:   rgba(0,0,0,0.08);
  --glass-shadow:   0 8px 40px rgba(0,0,0,0.10);

  --text-primary:   #0d1117;
  --text-secondary: #4a5568;
  --text-muted:     #94a3b8;
  --text-inverse:   #f0f2f8;
}

/* =====================================================
   2. RESET & BASE
   ===================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 15px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  transition: background var(--transition-slow), color var(--transition-slow);
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-primary);
}

a { color: var(--accent-light); text-decoration: none; }
a:hover { color: var(--accent); }

code, .wallet-address, .receive-address {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem;
  word-break: break-all;
}

input, select, textarea, button {
  font-family: inherit;
  font-size: inherit;
}

/* Utility */
.hidden { display: none !important; }
.mt-8  { margin-top: 8px; }

/* =====================================================
   3. SCREEN MANAGEMENT
   ===================================================== */
.screen { display: none; }
.screen.active { display: flex; }
#login-screen { min-height: 100vh; align-items: center; justify-content: center; position: relative; overflow: hidden; }
#app-screen { min-height: 100vh; }

/* =====================================================
   4. GLASS CARD
   ===================================================== */
.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  box-shadow: var(--glass-shadow);
  padding: 24px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.glass-card:hover {
  border-color: rgba(124, 92, 252, 0.18);
}

/* =====================================================
   5. LOGIN SCREEN
   ===================================================== */
.login-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  background: radial-gradient(ellipse 80% 60% at 20% 30%, rgba(124,92,252,0.22) 0%, transparent 60%),
              radial-gradient(ellipse 60% 50% at 80% 70%, rgba(34,211,160,0.12) 0%, transparent 55%),
              radial-gradient(ellipse 100% 80% at 50% 50%, rgba(10,12,18,1) 0%, rgba(15,17,23,1) 100%);
}

.login-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  animation: orb-float 8s ease-in-out infinite;
}
.orb-1 { width: 420px; height: 420px; background: var(--accent); top: -100px; left: -80px; animation-delay: 0s; }
.orb-2 { width: 300px; height: 300px; background: var(--success); bottom: -60px; right: -60px; animation-delay: -3s; }
.orb-3 { width: 200px; height: 200px; background: var(--info); top: 50%; left: 60%; animation-delay: -5s; }

@keyframes orb-float {
  0%, 100% { transform: translateY(0) scale(1); }
  50%       { transform: translateY(-30px) scale(1.06); }
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(124,92,252,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124,92,252,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
}

.login-container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 440px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.login-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-primary);
}

.brand-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: white;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.brand-name {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.login-card {
  width: 100%;
  padding: 36px;
}

.login-header {
  text-align: center;
  margin-bottom: 28px;
}

.login-header h1 {
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.login-header p {
  color: var(--text-secondary);
  margin-top: 6px;
  font-size: 0.92rem;
}

/* =====================================================
   6. FORM COMPONENTS
   ===================================================== */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 7px;
  margin-bottom: 18px;
}

.form-group label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.input-icon {
  position: absolute;
  left: 14px;
  color: var(--text-muted);
  font-size: 0.9rem;
  pointer-events: none;
  z-index: 1;
}

.input-wrapper input,
.input-wrapper select,
.input-wrapper textarea {
  width: 100%;
  padding: 11px 14px 11px 38px;
  background: var(--bg-overlay);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
  appearance: none;
}

/* Inputs without icon */
.form-group > input,
.form-group > select,
.form-group > textarea {
  width: 100%;
  padding: 11px 14px;
  background: var(--bg-overlay);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.input-wrapper input:focus,
.input-wrapper select:focus,
.form-group > input:focus,
.form-group > select:focus,
.form-group > textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-subtle);
  background: var(--bg-elevated);
}

.input-wrapper select option { background: var(--bg-elevated); color: var(--text-primary); }

.toggle-password {
  position: absolute;
  right: 12px;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  transition: color var(--transition);
}
.toggle-password:hover { color: var(--accent); }

.field-error {
  font-size: 0.78rem;
  color: var(--danger);
  display: flex;
  align-items: center;
  gap: 4px;
}

.form-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

/* Checkbox */
.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 0.88rem;
  color: var(--text-secondary);
  user-select: none;
}
.checkbox-label input[type="checkbox"] { display: none; }
.checkmark {
  width: 18px;
  height: 18px;
  border: 2px solid var(--glass-border);
  border-radius: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), border-color var(--transition);
  flex-shrink: 0;
}
.checkbox-label input:checked + .checkmark {
  background: var(--accent);
  border-color: var(--accent);
}
.checkbox-label input:checked + .checkmark::after {
  content: '';
  width: 5px;
  height: 9px;
  border: 2px solid white;
  border-top: none;
  border-left: none;
  transform: rotate(45deg) translateY(-1px);
}

.forgot-link {
  font-size: 0.85rem;
  color: var(--accent-light);
  transition: color var(--transition);
}
.forgot-link:hover { color: var(--accent); }

/* Textarea */
textarea {
  resize: vertical;
  min-height: 80px;
}

/* =====================================================
   7. BUTTONS
   ===================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.88rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0);
  transition: background var(--transition);
}
.btn:hover::before { background: rgba(255,255,255,0.06); }
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn:disabled:active { transform: none; }

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: white;
  box-shadow: 0 4px 16px var(--accent-glow);
}
.btn-primary:hover { box-shadow: 0 6px 24px var(--accent-glow); }

.btn-outline {
  background: transparent;
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}
.btn-ghost:hover { color: var(--accent); background: var(--accent-subtle); }

.btn-full { width: 100%; }

.btn-sm { padding: 7px 14px; font-size: 0.8rem; border-radius: 8px; }
.btn-xs { padding: 4px 10px; font-size: 0.76rem; border-radius: 6px; }

.btn-metamask {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 11px 20px;
  background: var(--bg-overlay);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.88rem;
  transition: all var(--transition);
}
.btn-metamask:hover {
  border-color: #e2761b;
  background: rgba(226, 118, 27, 0.08);
  color: #e2761b;
}

.btn-loader { display: inline-flex; }

.login-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 18px 0;
  color: var(--text-muted);
  font-size: 0.8rem;
}
.login-divider::before,
.login-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--glass-border);
}

.login-footer {
  text-align: center;
  margin-top: 18px;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.login-footer code {
  color: var(--accent-light);
  background: var(--accent-subtle);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.78rem;
}

/* =====================================================
   8. ALERTS & TOASTS
   ===================================================== */
.alert {
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}
.alert-error   { background: var(--danger-subtle); border: 1px solid rgba(244,76,127,0.3); color: var(--danger); }
.alert-success { background: var(--success-subtle); border: 1px solid rgba(34,211,160,0.3); color: var(--success); }
.alert-info    { background: var(--info-subtle); border: 1px solid rgba(56,189,248,0.3); color: var(--info); }
.alert-warning { background: var(--warning-subtle); border: 1px solid rgba(245,166,35,0.3); color: var(--warning); }

/* Toast */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast {
  padding: 14px 18px;
  border-radius: var(--radius-md);
  font-size: 0.86rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
  animation: toast-in 0.3s ease forwards;
  pointer-events: all;
  max-width: 360px;
  border: 1px solid transparent;
}

.toast-success { background: rgba(34,211,160,0.15); border-color: rgba(34,211,160,0.4); color: var(--success); }
.toast-error   { background: rgba(244,76,127,0.15); border-color: rgba(244,76,127,0.4); color: var(--danger); }
.toast-info    { background: rgba(124,92,252,0.15); border-color: rgba(124,92,252,0.4); color: var(--accent-light); }
.toast-warning { background: rgba(245,166,35,0.15); border-color: rgba(245,166,35,0.4); color: var(--warning); }

.toast.toast-out { animation: toast-out 0.3s ease forwards; }

@keyframes toast-in {
  from { opacity: 0; transform: translateX(60px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes toast-out {
  from { opacity: 1; transform: translateX(0); }
  to   { opacity: 0; transform: translateX(60px); }
}

/* =====================================================
   9. APP LAYOUT
   ===================================================== */
#app-screen {
  display: flex;
  background: var(--bg-base);
}

/* ---- Sidebar ---- */
.sidebar {
  position: fixed;
  left: 0; top: 0; bottom: 0;
  width: var(--sidebar-width);
  background: var(--glass-bg);
  border-right: 1px solid var(--glass-border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  display: flex;
  flex-direction: column;
  padding: 20px 0;
  z-index: 100;
  transition: transform var(--transition-slow), background var(--transition-slow);
}

.sidebar .sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 20px;
  margin-bottom: 32px;
}

.sidebar .brand-icon {
  width: 36px;
  height: 36px;
  font-size: 16px;
}

.sidebar .brand-name {
  font-size: 1.25rem;
}

/* Nav items */
.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 0 12px;
  flex: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.9rem;
  transition: all var(--transition);
  position: relative;
  text-decoration: none;
}

.nav-item i {
  width: 18px;
  text-align: center;
  font-size: 0.95rem;
}

.nav-item:hover {
  background: var(--accent-subtle);
  color: var(--accent-light);
}

.nav-item.active {
  background: linear-gradient(135deg, var(--accent-subtle) 0%, rgba(124,92,252,0.06) 100%);
  color: var(--accent-light);
  border: 1px solid rgba(124,92,252,0.2);
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: -12px;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 20px;
  background: var(--accent);
  border-radius: 0 3px 3px 0;
}

/* Sidebar footer */
.sidebar-footer {
  padding: 0 12px;
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.network-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--bg-overlay);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  font-size: 0.76rem;
  color: var(--text-secondary);
}

.network-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 8px var(--success);
  flex-shrink: 0;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 6px var(--success); }
  50%       { box-shadow: 0 0 14px var(--success); }
}

.btn-logout {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: transparent;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  width: 100%;
}
.btn-logout:hover {
  background: var(--danger-subtle);
  border-color: var(--danger);
  color: var(--danger);
}

/* ---- Mobile Header ---- */
.mobile-header {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-h);
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  z-index: 101;
  padding: 0 16px;
  align-items: center;
  justify-content: space-between;
}

.mobile-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--text-primary);
}

.hamburger {
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---- Main Content ---- */
.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  min-height: 100vh;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  background: var(--bg-base);
  transition: background var(--transition-slow);
}

/* Topbar */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.topbar-left {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-title {
  font-size: 1.55rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.breadcrumb {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.session-timer {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--bg-overlay);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  color: var(--text-secondary);
  font-family: 'JetBrains Mono', monospace;
  cursor: help;
}

.session-timer i { color: var(--success); }

.icon-btn {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: var(--bg-overlay);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition);
}
.icon-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-subtle);
}

.user-avatar {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 0.82rem;
  cursor: pointer;
  box-shadow: 0 4px 12px var(--accent-glow);
  transition: box-shadow var(--transition);
  user-select: none;
}
.user-avatar:hover { box-shadow: 0 6px 20px var(--accent-glow); }

/* ---- Pages ---- */
.page { display: none; flex-direction: column; gap: 20px; animation: page-in 0.3s ease; }
.page.active { display: flex; }

@keyframes page-in {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 10px;
}
.card-header h3 {
  font-size: 1rem;
  font-weight: 700;
}

/* =====================================================
   10. DASHBOARD — PORTFOLIO HERO
   ===================================================== */
.portfolio-hero {
  background: linear-gradient(135deg,
    rgba(124,92,252,0.18) 0%,
    rgba(22,24,34,0.72) 60%,
    rgba(34,211,160,0.08) 100%);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  padding: 32px;
}

.portfolio-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}

.portfolio-value {
  font-size: 2.6rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, #fff 0%, var(--accent-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 10px;
}

.portfolio-change {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-full);
}
.portfolio-change.positive {
  color: var(--success);
  background: var(--success-subtle);
}
.portfolio-change.negative {
  color: var(--danger);
  background: var(--danger-subtle);
}

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

/* =====================================================
   11. STATS GRID
   ===================================================== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.stat-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px;
  cursor: default;
  transition: transform var(--transition), box-shadow var(--transition);
}
.stat-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 48px rgba(0,0,0,0.5);
}

.stat-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}
.stat-icon.eth  { background: rgba(98,126,234,0.15); color: var(--eth-color); }
.stat-icon.btc  { background: rgba(247,147,26,0.15); color: var(--btc-color); }
.stat-icon.usdc { background: rgba(39,117,202,0.15); color: var(--usdc-color); }
.stat-icon.gas  { background: var(--danger-subtle); color: var(--gas-color); }

.stat-label { font-size: 0.75rem; color: var(--text-muted); font-weight: 500; margin-bottom: 3px; }
.stat-value { font-size: 1.05rem; font-weight: 700; color: var(--text-primary); }
.stat-sub   { font-size: 0.76rem; font-weight: 600; margin-top: 3px; }
.stat-sub.positive { color: var(--success); }
.stat-sub.negative { color: var(--danger); }
.stat-sub.neutral  { color: var(--text-muted); }

/* =====================================================
   12. CHARTS
   ===================================================== */
.charts-row {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 16px;
}

.chart-card { overflow: hidden; }

.chart-tabs {
  display: flex;
  gap: 4px;
  background: var(--bg-overlay);
  border-radius: var(--radius-full);
  padding: 3px;
}

.chart-tab {
  padding: 5px 14px;
  border-radius: var(--radius-full);
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}
.chart-tab.active {
  background: var(--accent);
  color: white;
  box-shadow: 0 2px 8px var(--accent-glow);
}

.chart-wrap {
  height: 220px;
  position: relative;
}

.donut-wrap {
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.allocation-legend {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 14px;
}

.legend-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
}

.legend-label {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.legend-pct {
  font-weight: 700;
  color: var(--text-primary);
}

/* =====================================================
   13. TRANSACTIONS
   ===================================================== */
.tx-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.tx-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
  cursor: pointer;
}
.tx-item:hover { background: var(--bg-overlay); }

.tx-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}
.tx-icon.send    { background: var(--danger-subtle); color: var(--danger); }
.tx-icon.receive { background: var(--success-subtle); color: var(--success); }
.tx-icon.swap    { background: var(--info-subtle); color: var(--info); }

.tx-body { flex: 1; min-width: 0; }
.tx-title { font-weight: 600; font-size: 0.9rem; color: var(--text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tx-sub   { font-size: 0.77rem; color: var(--text-muted); margin-top: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.tx-amount {
  text-align: right;
  flex-shrink: 0;
}
.tx-val   { font-weight: 700; font-size: 0.9rem; }
.tx-val.send    { color: var(--danger); }
.tx-val.receive { color: var(--success); }
.tx-val.swap    { color: var(--info); }
.tx-usd { font-size: 0.76rem; color: var(--text-muted); margin-top: 2px; }

.tx-status {
  padding: 3px 8px;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 600;
  flex-shrink: 0;
}
.status-confirmed { background: var(--success-subtle); color: var(--success); }
.status-pending   { background: var(--warning-subtle); color: var(--warning); }
.status-failed    { background: var(--danger-subtle); color: var(--danger); }

.tx-pagination {
  display: flex;
  justify-content: center;
  padding-top: 16px;
}

.filter-row {
  display: flex;
  gap: 8px;
}

.filter-row select {
  padding: 6px 10px;
  background: var(--bg-overlay);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.8rem;
  outline: none;
  cursor: pointer;
  appearance: none;
}

/* =====================================================
   14. WALLET PAGE
   ===================================================== */
.wallet-card { margin-bottom: 0; }

.wallet-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.wallet-address-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
}

.wallet-address {
  background: var(--bg-overlay);
  padding: 7px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--glass-border);
  font-size: 0.78rem;
  color: var(--text-secondary);
  max-width: 340px;
  display: block;
}

.wallet-btns { display: flex; gap: 8px; flex-wrap: wrap; }

.seed-warning {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: var(--warning-subtle);
  border: 1px solid rgba(245,166,35,0.3);
  color: var(--warning);
  font-size: 0.82rem;
  font-weight: 500;
  margin-bottom: 16px;
}
.seed-warning.danger {
  background: var(--danger-subtle);
  border-color: rgba(244,76,127,0.3);
  color: var(--danger);
}

.seed-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 8px;
}

.seed-word {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 10px;
  background: var(--bg-overlay);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
}
.seed-word span.num {
  color: var(--text-muted);
  font-size: 0.7rem;
  font-family: 'JetBrains Mono', monospace;
  min-width: 14px;
}
.seed-word span.word {
  color: var(--text-primary);
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
}

.wallet-address-block {
  display: block;
  width: 100%;
  padding: 12px;
  background: var(--bg-overlay);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  color: var(--accent-light);
  word-break: break-all;
}

.badge {
  font-size: 0.68rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.badge-danger { background: var(--danger-subtle); color: var(--danger); }

/* Token list */
.token-list { display: flex; flex-direction: column; gap: 2px; }

.token-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 12px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}
.token-item:hover { background: var(--bg-overlay); }

.token-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 700;
  flex-shrink: 0;
}

.token-body { flex: 1; }
.token-name { font-weight: 600; font-size: 0.9rem; }
.token-symbol { font-size: 0.76rem; color: var(--text-muted); }

.token-balance { text-align: right; }
.token-amount { font-weight: 700; font-size: 0.95rem; }
.token-usd { font-size: 0.76rem; color: var(--text-muted); margin-top: 2px; }
.token-change { font-size: 0.76rem; font-weight: 600; }
.token-change.pos { color: var(--success); }
.token-change.neg { color: var(--danger); }

/* =====================================================
   15. SEND PAGE
   ===================================================== */
.send-card { max-width: 580px; }

.gas-estimate-box {
  margin-bottom: 18px;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.gas-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.84rem;
  color: var(--text-secondary);
}
.gas-row i { color: var(--accent); margin-right: 4px; }
.gas-row strong { color: var(--text-primary); font-weight: 700; }

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: overlay-in 0.2s ease;
}
@keyframes overlay-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.modal {
  width: 100%;
  max-width: 440px;
  animation: modal-in 0.25s cubic-bezier(0.34,1.56,0.64,1);
}
@keyframes modal-in {
  from { opacity: 0; transform: scale(0.9) translateY(20px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

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

.confirm-details {
  background: var(--bg-overlay);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.confirm-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  font-size: 0.85rem;
  gap: 12px;
}
.confirm-row span:first-child { color: var(--text-muted); flex-shrink: 0; }
.confirm-row span:last-child { color: var(--text-primary); font-weight: 600; text-align: right; word-break: break-all; }

.modal-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

/* =====================================================
   16. RECEIVE PAGE
   ===================================================== */
.receive-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  align-items: start;
}

.receive-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.qr-container {
  width: 200px;
  height: 200px;
  background: white;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 16px 0;
  padding: 12px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}

#qrcode-canvas canvas,
#qrcode-canvas img {
  border-radius: 6px;
}

.receive-address-wrap {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.receive-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.receive-address {
  font-size: 0.73rem;
  color: var(--accent-light);
  word-break: break-all;
  text-align: center;
}

.receive-info-card { padding: 28px; }
.receive-info-card h3 { margin-bottom: 20px; }

.steps-list { display: flex; flex-direction: column; gap: 18px; margin-bottom: 24px; }

.step {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.step-num {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--accent-subtle);
  border: 1px solid rgba(124,92,252,0.3);
  color: var(--accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  flex-shrink: 0;
}

.step-text strong { font-size: 0.9rem; display: block; margin-bottom: 3px; }
.step-text p { font-size: 0.82rem; color: var(--text-muted); }

.network-selector {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.network-selector label { font-size: 0.8rem; color: var(--text-muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; }
.network-selector select {
  padding: 9px 12px;
  background: var(--bg-overlay);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.88rem;
  outline: none;
  appearance: none;
}

/* =====================================================
   17. SETTINGS
   ===================================================== */
.settings-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  align-items: start;
}

.settings-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--glass-border);
}
.settings-item:last-child { border-bottom: none; padding-bottom: 0; }

.settings-item strong { font-size: 0.9rem; display: block; margin-bottom: 3px; }
.settings-item p { font-size: 0.8rem; color: var(--text-muted); }

.setting-select {
  padding: 7px 10px;
  background: var(--bg-overlay);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.82rem;
  outline: none;
  flex-shrink: 0;
  appearance: none;
  min-width: 130px;
}

.setting-input {
  flex: 1;
  max-width: 260px;
  padding: 7px 10px;
  background: var(--bg-overlay);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.82rem;
  outline: none;
}
.setting-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-subtle); }

/* Toggle switch */
.toggle-switch {
  position: relative;
  width: 42px;
  height: 24px;
  cursor: pointer;
  flex-shrink: 0;
}
.toggle-switch input { display: none; }
.toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--bg-overlay);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  transition: background var(--transition);
}
.toggle-slider::before {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--text-muted);
  top: 3px;
  left: 3px;
  transition: transform var(--transition), background var(--transition);
}
.toggle-switch input:checked + .toggle-slider {
  background: var(--accent);
  border-color: var(--accent);
}
.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(18px);
  background: white;
}

/* Profile */
.profile-info {
  display: flex;
  align-items: center;
  gap: 16px;
}
.profile-avatar {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 800;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.profile-name { font-weight: 700; font-size: 1rem; margin-bottom: 3px; }
.profile-email { font-size: 0.82rem; color: var(--text-secondary); }
.profile-username { font-size: 0.78rem; color: var(--text-muted); font-family: 'JetBrains Mono', monospace; }

/* Theme switcher */
.theme-switcher { display: flex; gap: 6px; }
.theme-btn {
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--glass-border);
  background: var(--bg-overlay);
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}
.theme-btn.active { background: var(--accent); border-color: var(--accent); color: white; }
.theme-btn:hover:not(.active) { border-color: var(--accent); color: var(--accent); }

/* =====================================================
   18. SIDEBAR OVERLAY (MOBILE)
   ===================================================== */
.sidebar-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 99;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

/* =====================================================
   19. IMPORT RESULT
   ===================================================== */
#import-result {
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.84rem;
}

/* =====================================================
   20. MISSING UTILITIES & EXTRAS
   ===================================================== */

/* screen.hidden overrides */
.screen.hidden { display: none !important; }
#app-screen.active { display: flex !important; }

/* Mobile topbar right actions wrapper */
.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Price ticker strip at top of dashboard */
.ticker-strip {
  display: flex;
  align-items: center;
  gap: 0;
  overflow: hidden;
  background: var(--bg-elevated);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  padding: 0 4px;
  height: 36px;
  flex: 1;
  max-width: 560px;
}

.ticker-track {
  display: flex;
  gap: 28px;
  align-items: center;
  animation: ticker-scroll 30s linear infinite;
  white-space: nowrap;
  padding: 0 14px;
}

.ticker-strip:hover .ticker-track { animation-play-state: paused; }

@keyframes ticker-scroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.ticker-item {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: default;
}

.ticker-sym {
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-primary);
}

.ticker-price { color: var(--text-primary); font-family: 'JetBrains Mono', monospace; }
.ticker-chg.pos { color: var(--success); }
.ticker-chg.neg { color: var(--danger); }

/* Loading shimmer */
.shimmer {
  background: linear-gradient(90deg,
    var(--bg-overlay) 25%,
    rgba(124,92,252,0.05) 50%,
    var(--bg-overlay) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.6s infinite;
  border-radius: var(--radius-sm);
}
@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Transaction hash link */
.tx-hash-link {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  color: var(--accent-light);
  text-decoration: none;
  transition: color var(--transition);
}
.tx-hash-link:hover { color: var(--accent); }

/* Empty state */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 40px 20px;
  color: var(--text-muted);
  text-align: center;
}
.empty-state i { font-size: 2.2rem; opacity: 0.4; }
.empty-state p { font-size: 0.85rem; }

/* Dashboard welcome banner */
.welcome-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 2px 4px;
}
.welcome-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
}
.welcome-text strong {
  color: var(--text-primary);
}

/* =====================================================
   21. SCROLLBAR
   ===================================================== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--glass-border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* =====================================================
   21. RESPONSIVE — TABLET
   ===================================================== */
@media (max-width: 1100px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .charts-row { grid-template-columns: 1fr; }
  .settings-grid { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .receive-grid { grid-template-columns: 1fr; }
}

/* =====================================================
   22. RESPONSIVE — MOBILE
   ===================================================== */
@media (max-width: 768px) {
  :root { --sidebar-width: 0px; }

  .sidebar {
    transform: translateX(-100%);
    width: 260px;
    z-index: 200;
  }

  .sidebar.open { transform: translateX(0); }

  .mobile-header { display: flex; }

  .main-content {
    margin-left: 0;
    padding: 80px 16px 20px;
    gap: 16px;
  }

  .portfolio-hero { padding: 22px; }
  .portfolio-value { font-size: 2rem; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }

  .stat-card { padding: 14px; }
  .stat-icon { width: 36px; height: 36px; font-size: 1rem; }
  .stat-value { font-size: 0.9rem; }

  .wallet-header { flex-direction: column; }
  .wallet-btns { width: 100%; }

  .send-card { max-width: 100%; }

  .topbar { display: none; }

  .toast-container { bottom: 16px; right: 16px; left: 16px; }
  .toast { max-width: 100%; }

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

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .portfolio-value { font-size: 1.7rem; }
  .charts-row { grid-template-columns: 1fr; }
  .modal-actions { flex-direction: column; }
  .modal-actions .btn { width: 100%; }
}