:root{--primary: #28519E;--primary-dark: #1C3A72;--accent: #B4D8FE;--surface-tint: #E8F1FD;--bg: #F5F5F5;--bg-card: #ffffff;--text: #212529;--text-secondary: #666666;--success: #22990F;--warning: #E65100;--danger: #D32F2F;--border: #EEEEEE;--divider: #EEEEEE;--shadow-card: 0 2px 4px rgba(0,0,0,.08);--shell-padding: 16px;--radius: 8px}body{color:var(--text);background:var(--primary);min-height:100dvh}#root{max-width:768px;margin:0 auto;background:var(--bg);min-height:100dvh;box-shadow:0 0 24px #00000026}button{cursor:pointer;border:none;border-radius:var(--radius);padding:12px 24px;font-size:16px;font-weight:600}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}input[type=text],input[type=password]{width:100%;padding:12px 16px;border:1px solid var(--border);border-radius:var(--radius);font-size:16px}input:focus{outline:2px solid var(--primary);border-color:transparent}