/* ==========================================================================
   1. VARIABLES, RESETS & THEME DEFINITIONS (DARK & LIGHT)
   ========================================================================== */

:root {
  --w3w-bg-dark: #070a13;
  --w3w-card-bg: #0d1322;
  --w3w-card-border: #18233c;
  --w3w-input-bg: #090e1a;
  --w3w-input-border: #1b263f;
  --w3w-text-main: #ffffff;
  --w3w-text-muted: #7e8b9f;
  --w3w-accent-primary: #3b49df;
  --w3w-accent-hover: #4d5bf0;
  --w3w-green-accent: #00d084;
  --w3w-danger-accent: #ef4444;
  --w3w-warning-accent: #f59e0b;
  --w3w-radius-sm: 6px;
  --w3w-radius-md: 10px;
  --w3w-radius-lg: 14px;
  --w3w-font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
  --w3w-badge-bg: #151d30;
  --w3w-modal-bg: #0b1120;
  --w3w-seed-box-bg: #060911;
  --w3w-seed-chip-bg: #0e1628;
}

/* Light Theme Variables */
.web3-wallet-container[data-theme="light"],
.web3-wallet-portal-mount[data-theme="light"] {
  --w3w-bg-dark: #ffffff;
  --w3w-card-bg: #ffffff;
  --w3w-card-border: #e2e8f0;
  --w3w-input-bg: #f8fafc;
  --w3w-input-border: #cbd5e1;
  --w3w-text-main: #0f172a;
  --w3w-text-muted: #64748b;
  --w3w-badge-bg: #f1f5f9;
  --w3w-modal-bg: #ffffff;
  --w3w-seed-box-bg: #f8fafc;
  --w3w-seed-chip-bg: #edf2f7;
}

.web3-wallet-portal-mount * {
  box-sizing: border-box;
  font-family: var(--w3w-font-sans);
}

.web3-wallet-portal-mount {
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
  background-color: var(--w3w-bg-dark);
  color: var(--w3w-text-main);
  border-radius: var(--w3w-radius-lg);
  padding: 32px 28px;
  border: 1px solid var(--w3w-card-border);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.45);
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

/* ==========================================================================
   2. HEADER & NAVIGATION BAR
   ========================================================================== */

.w3w-header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 28px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--w3w-card-border);
}

.w3w-brand-wrapper {
  display: flex;
  align-items: center;
  gap: 14px;
}

.w3w-brand-logo {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, #2b3990 0%, #151b3b 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  color: #60a5fa;
  border: 1px solid #2e3d6b;
}

.w3w-brand-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--w3w-text-main);
  margin: 0;
  line-height: 1.2;
}

.w3w-brand-subtitle {
  font-size: 13px;
  color: var(--w3w-text-muted);
  margin: 3px 0 0 0;
}

.w3w-auth-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.w3w-btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--w3w-badge-bg);
  color: var(--w3w-text-main);
  border: 1px solid var(--w3w-card-border);
  padding: 8px 14px;
  border-radius: var(--w3w-radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease-in-out;
}

.w3w-btn-outline:hover {
  background-color: var(--w3w-input-border);
  border-color: #2b3b60;
  color: var(--w3w-text-main);
}

.w3w-btn-backup {
  border-color: #3b49df;
  color: #93c5fd;
}

.w3w-btn-backup:hover {
  background-color: #1e293b;
  border-color: #60a5fa;
}

/* Explicit Light Mode Contrast Overrides */
.web3-wallet-container[data-theme="light"] .w3w-brand-title,
.web3-wallet-portal-mount[data-theme="light"] .w3w-brand-title {
  color: #0f172a !important;
}

.web3-wallet-container[data-theme="light"] .w3w-brand-subtitle,
.web3-wallet-portal-mount[data-theme="light"] .w3w-brand-subtitle {
  color: #64748b !important;
}

.web3-wallet-container[data-theme="light"] .w3w-btn-outline,
.web3-wallet-portal-mount[data-theme="light"] .w3w-btn-outline {
  background-color: #f1f5f9;
  border-color: #cbd5e1;
  color: #0f172a !important;
}

.web3-wallet-container[data-theme="light"] .w3w-btn-outline:hover,
.web3-wallet-portal-mount[data-theme="light"] .w3w-btn-outline:hover {
  background-color: #e2e8f0;
  border-color: #94a3b8;
}

.web3-wallet-container[data-theme="light"] #w3w-mode-toggle-btn,
.web3-wallet-portal-mount[data-theme="light"] #w3w-mode-toggle-btn {
  background-color: #fff7ed !important;
  border-color: #fdba74 !important;
  color: #c2410c !important;
}

.web3-wallet-container[data-theme="light"] .w3w-btn-backup,
.web3-wallet-portal-mount[data-theme="light"] .w3w-btn-backup {
  background-color: #eff6ff !important;
  border-color: #93c5fd !important;
  color: #1d4ed8 !important;
}

.web3-wallet-container[data-theme="light"] #w3w-logout-btn,
.web3-wallet-portal-mount[data-theme="light"] #w3w-logout-btn {
  background-color: #f8fafc !important;
  border-color: #cbd5e1 !important;
  color: #334155 !important;
}

/* ==========================================================================
   3. STATUS, INFO BAR, TOOLTIP & COPY BUTTON
   ========================================================================== */

.w3w-status-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: var(--w3w-card-bg);
  border: 1px solid var(--w3w-card-border);
  border-radius: var(--w3w-radius-md);
  padding: 14px 20px;
  margin-bottom: 24px;
}

.w3w-status-left {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--w3w-text-muted);
}

.w3w-status-left strong {
  color: var(--w3w-text-main);
  font-family: monospace;
  position: relative;
  cursor: pointer;
}

.w3w-btn-copy-addr {
  background: transparent;
  border: none;
  color: var(--w3w-text-muted);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 3px 6px;
  border-radius: 4px;
  transition: all 0.2s ease;
  vertical-align: middle;
}

.w3w-btn-copy-addr:hover {
  color: #38bdf8;
  background-color: var(--w3w-badge-bg);
}

.w3w-btn-refresh {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: var(--w3w-badge-bg);
  border: 1px solid var(--w3w-card-border);
  color: var(--w3w-text-main);
  padding: 6px 14px;
  border-radius: var(--w3w-radius-sm);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s ease;
}

.w3w-btn-refresh:hover {
  background-color: var(--w3w-input-border);
}

/* ==========================================================================
   4. BALANCE CARDS GRID
   ========================================================================== */

.w3w-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-bottom: 28px;
}

@media (max-width: 768px) {
  .w3w-cards-grid {
    grid-template-columns: 1fr;
  }
}

.w3w-card {
  background-color: var(--w3w-card-bg);
  border: 1px solid var(--w3w-card-border);
  border-radius: var(--w3w-radius-md);
  padding: 22px;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.w3w-card-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--w3w-text-muted);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.w3w-card-amount {
  font-size: 28px;
  font-weight: 700;
  color: var(--w3w-text-main);
  margin-bottom: 8px;
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.w3w-card-amount span {
  font-size: 16px;
  color: var(--w3w-text-muted);
  font-weight: 500;
}

.w3w-card-desc {
  font-size: 13px;
  color: #3b82f6;
  margin: 0;
  font-weight: 500;
}

.w3w-card-desc.w3w-green {
  color: var(--w3w-green-accent);
}

.w3w-trend-icon {
  position: absolute;
  top: 22px;
  right: 22px;
  color: var(--w3w-green-accent);
  font-size: 18px;
}

/* ==========================================================================
   5. TRANSFER PANEL, ASSET SELECTOR & GAS ESTIMATION BOX
   ========================================================================== */

.w3w-transfer-container {
  background-color: var(--w3w-card-bg);
  border: 1px solid var(--w3w-card-border);
  border-radius: var(--w3w-radius-md);
  padding: 24px;
}

.w3w-transfer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 22px;
  flex-wrap: wrap;
  gap: 12px;
}

.w3w-transfer-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  margin: 0;
  color: var(--w3w-text-main);
}

.w3w-asset-toggle-group {
  display: inline-flex;
  background-color: var(--w3w-input-bg);
  border: 1px solid var(--w3w-input-border);
  border-radius: var(--w3w-radius-sm);
  padding: 3px;
}

.w3w-asset-toggle-btn {
  background: transparent;
  border: none;
  color: var(--w3w-text-muted);
  font-size: 12px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.w3w-asset-toggle-btn.active {
  background-color: var(--w3w-accent-primary);
  color: #ffffff;
}

.web3-wallet-container[data-theme="light"] .w3w-asset-toggle-btn:not(.active),
.web3-wallet-portal-mount[data-theme="light"] .w3w-asset-toggle-btn:not(.active) {
  color: #64748b !important;
}

.w3w-form-group {
  margin-bottom: 18px;
}

.w3w-form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--w3w-text-muted);
  margin-bottom: 8px;
}

.w3w-form-control {
  width: 100%;
  background-color: var(--w3w-input-bg);
  border: 1px solid var(--w3w-input-border);
  border-radius: var(--w3w-radius-sm);
  padding: 14px 16px;
  color: var(--w3w-text-main);
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
}

.w3w-form-control:focus {
  border-color: var(--w3w-accent-primary);
}

.w3w-form-control::placeholder {
  color: #64748b;
}

.w3w-gas-estimate-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--w3w-input-bg);
  border: 1px solid var(--w3w-input-border);
  border-radius: var(--w3w-radius-sm);
  padding: 10px 14px;
  margin-bottom: 18px;
  font-size: 13px;
}

.w3w-gas-estimate-label {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--w3w-text-muted);
}

.w3w-gas-estimate-value {
  font-family: monospace;
  font-weight: 600;
  color: #38bdf8;
}

.web3-wallet-container[data-theme="light"] .w3w-gas-estimate-value,
.web3-wallet-portal-mount[data-theme="light"] .w3w-gas-estimate-value {
  color: #0284c7 !important;
}

.w3w-btn-submit {
  width: 100%;
  background-color: var(--w3w-accent-primary);
  color: #ffffff;
  border: none;
  padding: 16px;
  border-radius: var(--w3w-radius-sm);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s;
  margin-top: 8px;
}

.w3w-btn-submit:hover:not(:disabled) {
  background-color: var(--w3w-accent-hover);
}

.w3w-btn-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ==========================================================================
   6. 12-WORD MNEMONIC MODAL & SEED GRID
   ========================================================================== */

.w3w-modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99999;
  padding: 20px;
}

.w3w-modal-box {
  background-color: var(--w3w-modal-bg);
  border: 1px solid var(--w3w-card-border);
  border-radius: var(--w3w-radius-lg);
  max-width: 540px;
  width: 100%;
  padding: 28px;
  color: var(--w3w-text-main);
  position: relative;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
}

.w3w-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.w3w-modal-title {
  font-size: 18px;
  font-weight: 700;
  margin: 0;
}

.w3w-modal-close {
  background: transparent;
  border: none;
  color: var(--w3w-text-muted);
  font-size: 22px;
  cursor: pointer;
  line-height: 1;
}

.w3w-modal-close:hover {
  color: var(--w3w-text-main);
}

.w3w-seed-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin: 20px 0;
  background-color: var(--w3w-seed-box-bg);
  padding: 16px;
  border-radius: var(--w3w-radius-md);
  border: 1px solid var(--w3w-card-border);
}

.w3w-seed-word {
  background-color: var(--w3w-seed-chip-bg);
  border: 1px solid var(--w3w-card-border);
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 13px;
  font-family: monospace;
  color: #38bdf8;
  display: flex;
  align-items: center;
  gap: 6px;
}

.web3-wallet-container[data-theme="light"] .w3w-seed-word,
.web3-wallet-portal-mount[data-theme="light"] .w3w-seed-word {
  color: #0284c7 !important;
}

.w3w-seed-word span {
  color: var(--w3w-text-muted);
  font-size: 11px;
}

.w3w-warning-callout {
  background-color: #271a00;
  border: 1px solid #78350f;
  color: #fde68a;
  padding: 12px;
  border-radius: 6px;
  font-size: 13px;
  margin-bottom: 18px;
  line-height: 1.4;
}

/* ==========================================================================
   7. FEEDBACK ALERTS & SKELETON LOADERS
   ========================================================================== */

.w3w-alert {
  padding: 12px 16px;
  border-radius: var(--w3w-radius-sm);
  font-size: 13px;
  margin-bottom: 16px;
}

.w3w-alert-success {
  background-color: #064e3b;
  border: 1px solid #059669;
  color: #a7f3d0;
}

.w3w-alert-error {
  background-color: #450a0a;
  border: 1px solid #dc2626;
  color: #fecaca;
}

.web3-wallet-loading-skeleton {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  color: var(--w3w-text-muted);
}

.web3-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--w3w-card-border);
  border-top-color: #3b82f6;
  border-radius: 50%;
  animation: w3w-spin 0.8s linear infinite;
  margin-bottom: 12px;
}

@keyframes w3w-spin {
  to { transform: rotate(360deg); }
}

/* ==========================================================================
   8. STANDALONE CONNECT BUTTON SHORTCODE
   ========================================================================== */

.w3w-connect-shortcode-wrap {
  display: inline-block;
}

.w3w-btn-custom-connect {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--w3w-btn-custom-bg, #3b49df);
  color: var(--w3w-btn-custom-text, #ffffff);
  border: 1px solid var(--w3w-btn-custom-border, #3b49df);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease-in-out;
  text-decoration: none;
  outline: none;
}

.w3w-btn-custom-connect:hover {
  background-color: var(--w3w-btn-custom-hover, #4d5bf0);
  border-color: var(--w3w-btn-custom-hover, #4d5bf0);
  color: var(--w3w-btn-custom-text, #ffffff);
}

.w3w-btn-custom-connect:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ==========================================================================
   9. NATIVE SYSTEM DARK MODE PREFERENCE (@media prefers-color-scheme)
   ========================================================================== */

@media (prefers-color-scheme: dark) {
  .web3-wallet-container:not([data-theme="light"]) .web3-wallet-portal-mount,
  .web3-wallet-portal-mount:not([data-theme="light"]) {
    --w3w-bg-dark: #070a13;
    --w3w-card-bg: #0d1322;
    --w3w-card-border: #18233c;
    --w3w-input-bg: #090e1a;
    --w3w-input-border: #1b263f;
    --w3w-text-main: #ffffff;
    --w3w-text-muted: #7e8b9f;
    --w3w-badge-bg: #151d30;
    --w3w-modal-bg: #0b1120;
    --w3w-seed-box-bg: #060911;
    --w3w-seed-chip-bg: #0e1628;
  }
}