.app{min-height:100vh;display:flex;flex-direction:column}.header{background:var(--bg-secondary);border-bottom:1px solid var(--border-color);padding:var(--spacing-md) var(--spacing-lg);position:sticky;top:0;z-index:100;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.header-content{max-width:800px;margin:0 auto;display:flex;justify-content:space-between;align-items:center}.logo{display:flex;align-items:center;gap:var(--spacing-sm)}.logo-icon{font-size:28px}.logo h1{font-size:20px;font-weight:700;background:linear-gradient(135deg,var(--color-primary),#fff);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.main{flex:1;max-width:800px;width:100%;margin:0 auto;padding:var(--spacing-xl) var(--spacing-lg)}.card{margin-bottom:var(--spacing-lg)}.card h2{font-size:18px;font-weight:600;margin-bottom:var(--spacing-md);display:flex;align-items:center;gap:var(--spacing-sm)}.card-hint{font-size:13px;color:var(--text-secondary);margin-bottom:var(--spacing-md);padding:var(--spacing-sm) var(--spacing-md);background:var(--bg-tertiary);border-radius:var(--border-radius-sm);border-left:3px solid var(--color-primary)}.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-md)}.card-header h2{margin-bottom:0}.install-prompt{text-align:center;padding:var(--spacing-xl)}.install-prompt h2{justify-content:center;font-size:24px;margin-bottom:var(--spacing-md)}.install-prompt p{color:var(--text-secondary);margin-bottom:var(--spacing-lg)}.connect-section{text-align:center;padding:var(--spacing-xl)}.connect-section h2{justify-content:center;font-size:24px}.connect-section p{color:var(--text-secondary);margin-bottom:var(--spacing-lg)}.connected-content{display:flex;flex-direction:column;gap:var(--spacing-lg)}.account-addresses{display:flex;flex-direction:column;gap:var(--spacing-md)}.address-item{display:flex;flex-direction:column;gap:var(--spacing-xs)}.balance-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--spacing-md)}.balance-item{background:var(--bg-tertiary);padding:var(--spacing-md);border-radius:var(--border-radius);display:flex;flex-direction:column;gap:var(--spacing-xs)}.balance-label{font-size:13px;color:var(--text-secondary)}.balance-value{font-size:20px;font-weight:600;font-family:SF Mono,Fira Code,monospace}.balance-value.highlight{color:var(--color-primary);font-size:24px}.send-form,.sign-form{display:flex;flex-direction:column;gap:var(--spacing-md)}.form-group{display:flex;flex-direction:column}.textarea{min-height:100px;resize:vertical;font-family:inherit}.signature-result{margin-top:var(--spacing-md);padding:var(--spacing-md);background:var(--bg-tertiary);border-radius:var(--border-radius);display:flex;flex-direction:column;gap:var(--spacing-md)}.result-item{display:flex;flex-direction:column;gap:var(--spacing-xs)}.result-item .label{font-size:13px;font-weight:600;color:var(--text-secondary)}.result-code{display:block;padding:var(--spacing-sm);background:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--border-radius-sm);font-family:SF Mono,Fira Code,monospace;font-size:12px;word-break:break-all;color:var(--color-primary);line-height:1.5}.btn-sm{padding:var(--spacing-sm) var(--spacing-md);font-size:13px}.btn-full{width:100%}.footer{text-align:center;padding:var(--spacing-lg);color:var(--text-muted);font-size:13px;border-top:1px solid var(--border-color);background:var(--bg-secondary)}.footer-hint{margin-top:var(--spacing-xs);font-size:12px}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.card{animation:fadeIn .3s ease}@media(max-width:600px){.header-content{flex-direction:column;gap:var(--spacing-sm)}.balance-grid{grid-template-columns:1fr}}:root{--color-primary: #f4b728;--color-primary-hover: #d9a323;--color-primary-light: rgba(244, 183, 40, .1);--color-secondary: #3b82f6;--color-success: #22c55e;--color-error: #ef4444;--color-warning: #f59e0b;--bg-primary: #0a0a0a;--bg-secondary: #141414;--bg-tertiary: #1f1f1f;--bg-card: rgba(30, 30, 30, .8);--text-primary: #ffffff;--text-secondary: #a0a0a0;--text-muted: #666666;--border-color: rgba(255, 255, 255, .1);--border-radius: 12px;--border-radius-lg: 16px;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--transition-fast: .15s ease;--transition-normal: .25s ease;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .3);--shadow-md: 0 4px 16px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .5);--shadow-glow: 0 0 20px rgba(244, 183, 40, .3)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100vh;line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{min-height:100vh}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-sm);padding:var(--spacing-md) var(--spacing-lg);border-radius:var(--border-radius);font-size:16px;font-weight:600;cursor:pointer;transition:all var(--transition-fast);border:none;outline:none}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:#000}.btn-primary:hover:not(:disabled){background:var(--color-primary-hover);box-shadow:var(--shadow-glow);transform:translateY(-1px)}.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover:not(:disabled){background:var(--bg-card);border-color:var(--color-primary)}.btn-danger{background:var(--color-error);color:#fff}.btn-danger:hover:not(:disabled){background:#dc2626}.card{background:var(--bg-card);border-radius:var(--border-radius-lg);border:1px solid var(--border-color);padding:var(--spacing-lg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.input{width:100%;padding:var(--spacing-md);background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--border-radius);color:var(--text-primary);font-size:16px;transition:border-color var(--transition-fast)}.input:focus{outline:none;border-color:var(--color-primary)}.input::placeholder{color:var(--text-muted)}.label{display:block;font-size:14px;font-weight:500;color:var(--text-secondary);margin-bottom:var(--spacing-sm)}.status-badge{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:20px;font-size:13px;font-weight:500}.status-badge.connected{background:#22c55e26;color:var(--color-success)}.status-badge.disconnected{background:#ef444426;color:var(--color-error)}.address{font-family:SF Mono,Fira Code,monospace;font-size:14px;color:var(--text-secondary);background:var(--bg-tertiary);padding:8px 12px;border-radius:8px;word-break:break-all}.spinner{width:20px;height:20px;border:2px solid var(--border-color);border-top-color:var(--color-primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.message{padding:var(--spacing-md);border-radius:var(--border-radius);font-size:14px;margin-top:var(--spacing-md)}.message.success{background:#22c55e26;color:var(--color-success);border:1px solid rgba(34,197,94,.3)}.message.error{background:#ef444426;color:var(--color-error);border:1px solid rgba(239,68,68,.3)}.message.warning{background:#f59e0b26;color:var(--color-warning);border:1px solid rgba(245,158,11,.3)}